Airtight test equipment suitable for aircraft fire control radar

Abstract

The utility model discloses airtight test equipment suitable for an airplane fire control radar, which comprises an air supply source, a drying pipe, an air filter, a control valve, an air inlet switch and an adjusting valve which are sequentially connected, the adjusting valve is connected with the airplane fire control radar, and an air inlet pressure gauge is arranged between the air inlet switch and the adjusting valve. A test pressure gauge is arranged between the regulating valve and the fire control radar; when the fire control radar needs to be subjected to an air tightness test, gas provided by a gas supply source firstly flows through a drying pipe and a gas filter to be dried and filtered, then flows through a control valve and a gas inlet switch and finally enters the fire control radar through a regulating valve, when a monitoring value of a test pressure gauge reaches a preset value, the gas inlet switch is closed, and the fire control radar is subjected to the air tightness test. And the pressure change of the test pressure gauge is observed so as to judge the air tightness of the fire control radar. The device has the characteristics of compact structure, portability, flexibility in operation, low cost and the like, improves the efficiency of a radar airtight test, and accords with the outfield working characteristics of a test flight station.

Description

Technical Field

[0001] The utility model belongs to the technical field of aircraft radar airtightness test, and particularly relates to an airtightness test device applicable to aircraft fire control radar. Background Technique

[0002] With the increasing frequency of the demand for aircraft radar airtightness test, it is possible to conduct airtightness test at any time and place in the field. The problem of the difficulty of radar airtightness test becomes increasingly prominent. It is necessary to conduct radar airtightness test in different sites to save the manpower and material resources of the airtightness test and complete the radar airtightness test quickly and conveniently. However, the existing radar airtightness equipment is relatively bulky, and the air source for gas supply uses gas cylinders, which is also very bulky. The gas filling port needs to be connected with an adapter, and the process is cumbersome, time-consuming and laborious, and it cannot meet the demand for conducting airtightness test at any time and place, and the test cost is relatively high. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an airtightness test device applicable to aircraft fire control radar, which is compact in structure, portable, flexible in operation and low in cost, aiming at the deficiencies of the existing radar airtightness equipment being bulky and time-consuming and laborious in operation. To achieve the above purpose, the utility model can adopt the following technical solutions:

[0004] An airtightness test device applicable to aircraft fire control radar, comprising a gas supply source, a drying pipe, a gas filter, a control valve, an intake switch and a regulating valve connected in sequence. The regulating valve is connected to the fire control radar of the aircraft through a gas transmission pipeline, and an intake pressure gauge is arranged between the intake switch and the regulating valve, and a test pressure gauge is arranged between the regulating valve and the fire control radar. When the fire control radar needs to conduct an airtightness test, the gas provided by the gas supply source first flows through the drying pipe and the gas filter for drying and filtering treatment, and then flows through the control valve and the intake switch, and finally enters the fire control radar through the regulating valve. When the monitored value of the test pressure gauge reaches the preset value, the intake switch is closed, and the pressure change of the test pressure gauge is observed to judge the airtightness of the fire control radar.

[0005] As a further improvement of the utility model, an exhaust switch is connected in parallel on the gas transmission pipeline between the regulating valve and the fire control radar. When the airtightness test of the fire control radar is completed, the exhaust switch is used to empty the gas in the fire control radar.

[0006] As a further improvement of the utility model, the gas supply source is a bicycle pump.

[0007] As a further improvement of the utility model, the control valve is a check valve.

[0008] As a further improvement of the utility model, the regulating valve is a pressure reducing valve.

[0009] As a further improvement of the present utility model, the intake switch is a ball valve.

[0010] As a further improvement of the present utility model, the exhaust switch is a ball valve.

[0011] As a further improvement of the present utility model, the air supply source, the drying pipe, the gas filter, the control valve, the intake switch and the regulating valve are all connected by flexible hoses.

[0012] As a further improvement of the present utility model, the intake pressure gauge and the test pressure gauge are both integrated on the regulating valve.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] The airtight test equipment of the present utility model applicable to the aircraft fire control radar is composed of an air supply source, a drying pipe, a gas filter, a control valve, an intake switch and a regulating valve connected in sequence to form the main structure of the airtight test equipment. It has the advantages of compact structure, cost saving, easy to carry, etc. Connecting the regulating valve to the aircraft fire control radar through a gas transmission pipeline completes the connection between the airtight test equipment and the radar to be tested, which is simple and reliable. At the same time, an intake pressure gauge is provided between the intake switch and the regulating valve, and a test pressure gauge is provided between the regulating valve and the fire control radar to realize real-time pressure monitoring. When the fire control radar needs to conduct an airtightness test, the gas provided by the air supply source first flows through the drying pipe and the gas filter for drying and filtering treatment to reduce the damage of the gas to the radar equipment, and then flows through the control valve and the intake switch. Finally, the gas pressure is adjusted to the preset value by the regulating valve and then enters the fire control radar to ensure the pressure safety of the fire control radar. When the monitored value of the test pressure gauge reaches the preset value, close the intake switch and observe the pressure change of the test pressure gauge to judge the airtightness of the fire control radar. The airtight test equipment of the present utility model can conduct the radar airtightness test at any time, and the air pressure can be monitored at any time, which greatly facilitates the maintenance work of the radar. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural principle diagram of the airtight test equipment applicable to the aircraft fire control radar in a specific embodiment of the present utility model;

[0016] Legend: 1. Air supply source; 2. Drying pipe; 3. Gas filter; 4. Control valve; 5. Intake switch; 6. Regulating valve; 7. Intake pressure gauge; 8. Test pressure gauge; 9. Exhaust switch; 10. Fire control radar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The present utility model will be further described below in conjunction with the attached drawings of the specification and specific preferred embodiments, but the protection scope of the present utility model is not limited thereby.

[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0019] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0020] Embodiment

[0021] As Figure 1 shown, the airtight test equipment of the present utility model applicable to the aircraft fire control radar includes a gas supply source 1, a drying pipe 2, a gas filter 3, a control valve 4, an intake switch 5, and a regulating valve 6 connected in sequence through an elastic hose. The regulating valve 6 is connected to the fire control radar 10 of the aircraft through a gas transmission pipeline, and an intake pressure gauge 7 is provided between the intake switch 5 and the regulating valve 6, and a test pressure gauge 8 is provided between the regulating valve 6 and the fire control radar 10. When the fire control radar 10 needs to conduct an airtightness test, the gas provided by the gas supply source 1 first flows through the drying pipe 2 and the gas filter 3 for drying and filtering treatment, then flows through the control valve 4 and the intake switch 5, and finally enters the fire control radar 10 through the regulating valve 6. When the monitored value of the test pressure gauge 8 reaches the preset value, the intake switch 5 is closed, and the pressure change of the test pressure gauge 8 is observed to judge the airtightness of the fire control radar 10.

[0022] In other embodiments, both the intake pressure gauge 7 and the test pressure gauge 8 are integrated on the regulating valve 6, realizing the trinity of the regulating valve 6, the intake pressure gauge 7, and the test pressure gauge 8, which is more conducive to simplifying the structural composition of the equipment and improving the convenience of equipment use and handling.

[0023] In this embodiment, the main structure of the airtight test equipment is composed of a gas supply source 1, a drying pipe 2, a gas filter 3, a control valve 4, an intake switch 5, and a regulating valve 6 connected in sequence. It has the advantages of compact structure, cost saving, and portability. Connecting the regulating valve 6 to the fire control radar 10 of the aircraft through a gas transmission pipeline completes the connection between the airtight test equipment and the radar to be tested, which is simple and reliable. At the same time, an intake pressure gauge 7 is provided between the intake switch 5 and the regulating valve 6 to monitor the intake pressure provided by the gas supply source 1 in real time, and a test pressure gauge 8 is provided between the regulating valve 6 and the fire control radar 10 to achieve real-time pressure monitoring. When the fire control radar 10 needs to conduct an airtightness test, the gas provided by the gas supply source 1 first flows through the drying pipe 2 and the gas filter 3 for drying and filtering treatment to reduce the damage of the gas to the radar equipment. Then it flows through the control valve 4 and the intake switch 5, and finally the gas pressure is adjusted to the preset value by the regulating valve 6 and then enters the fire control radar 10 to ensure the pressure safety of the fire control radar 10. When the monitored value of the test pressure gauge 8 reaches the preset value, the intake switch 5 is closed, and the pressure change of the test pressure gauge 8 is observed to judge the airtightness of the fire control radar 10. The airtight test equipment of the present utility model can conduct radar airtightness tests at any time and place, and the air pressure can be monitored at any time, which greatly facilitates the maintenance work of the radar.

[0024] As Figure 1 shown, an exhaust switch 9 is connected in parallel on the gas transmission pipeline between the regulating valve 6 and the fire control radar 10. When the airtightness test of the fire control radar 10 is completed, the exhaust switch 9 is used to empty the gas in the fire control radar 10.

[0025] In this embodiment, the gas supply source 1 is a pump. By using the pump to supply gas, the gas source equipment is integrated, reducing the volume and weight of the equipment, saving costs, being portable, facilitating airtightness tests at any time and place, saving labor and material costs, meeting the test requirements of different sites, and solving the problem of inconvenient handling of the gas source. The drying pipe 2 and the gas filter 3 can adopt the conventional settings in the art. The drying pipe 2 can dry the moisture in the gas to reduce the influence of moisture on the radar equipment, and the gas filter 3 can intercept the tiny particles in the gas to prevent the tiny particles from entering the radar equipment to ensure the safety of the radar equipment. In other embodiments, the gas supply source 1 can adopt an electric air pump, and the electric air pump needs to be powered by an external power supply, and the cost of manufacturing the equipment will increase accordingly.

[0026] In this embodiment, the control valve 4 is a one-way valve to prevent gas from flowing back during gas supply and ensure that the air pressure safely reaches the specified value.

[0027] In this embodiment, the regulating valve 6 is a pressure reducing valve, which is used to reduce the gas pressure to a pressure range suitable for the airtight test of the aircraft radar, ensure the safety of the supply air pressure, and protect the film on the radar antenna panel from being damaged due to uncontrollable pressure.

[0028] In this embodiment, both the intake switch 5 and the exhaust switch 9 are ball valves, which have the characteristics of compact structure, convenient installation and simple operation control.

[0029] The working principle of the airtight test equipment in this embodiment is as follows: The airtight test equipment is connected to the radar test object, and gas is injected into the radar. When the air pressure reaches the process specified value, the control switch is closed to maintain the gas pressure inside the test object. If the air pressure drop does not exceed the specified value within the specified time, the airtightness of the radar in the test object meets the requirements.

[0030] The working process of the airtight test equipment in this embodiment is as follows: When in use, connect the tail end air outlet of the regulating valve 6 in the airtight test equipment to the fire control radar test object, close the exhaust switch 9, open the intake switch 5, and set the pressure setting value of the regulating valve 6 to 0.1 MPa. During the test, press the air pump, and after the gas is dried by the drying pipe 2, it enters the air filter 3 for gas filtration, and then enters the control valve 4 and the intake switch 5, and then enters the regulating valve 6; observe the gas pressure of the test pressure gauge 8. When the gas pressure in the pipeline and the test object reaches the set value, close the intake switch 5. Keep this state until the process specified time, check whether the airtightness of the radar meets the requirements through the pressure change of the test pressure gauge 8. After the inspection is completed, open the exhaust switch 9 to empty the gas in the radar test object, and disconnect the connection between the radar test object and the airtight test equipment, and the entire radar airtight test is completed.

[0031] The airtight test equipment of the present utility model integrates the gas source and the equipment, which is small, light and easy to carry, and can perform airtight tests anytime and anywhere, meeting the working requirements of the outfield of the flight test station. The gas source uses an air pump to supply gas, removing the trouble of carrying steel gas cylinders, saving costs and eliminating the time for preparation work. A drying pipe 2 and a gas filter 3 are installed inside the equipment, which can dry the gas and remove particulate impurities, reducing the entry of gas moisture and particulate matter, effectively extending the service life of the aircraft radar, and thus ensuring the safety and reliability of the radar.

[0032] Although the present utility model is disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model by using the methods and technical contents disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. An airtight test device applicable to aircraft fire control radar, characterized in that It includes a gas supply source (1), a drying pipe (2), a gas filter (3), a control valve (4), an intake switch (5) and a regulating valve (6) connected in sequence. The regulating valve (6) is connected to the fire control radar (10) of the aircraft through a gas transmission pipeline, and an intake pressure gauge (7) is provided between the intake switch (5) and the regulating valve (6), and a test pressure gauge (8) is provided between the regulating valve (6) and the fire control radar (10).

2. The airtight test equipment applicable to the aircraft fire control radar according to claim 1, characterized in that An exhaust switch (9) is connected in parallel on the gas transmission pipeline between the regulating valve (6) and the fire control radar (10). After the airtightness test of the fire control radar (10) is completed, the exhaust switch (9) is used to empty the gas in the fire control radar (10).

3. The airtight test equipment applicable to aircraft fire control radar according to claim 2, characterized in that, The gas supply source (1) is a bicycle pump.

4. The airtight test equipment applicable to an aircraft fire control radar according to any one of claims 1 to 3, characterized in that, The control valve (4) is a check valve.

5. The airtight test equipment applicable to an aircraft fire control radar according to any one of claims 1 to 3, characterized in that, The regulating valve (6) is a pressure reducing valve.

6. The airtight test equipment applicable to an aircraft fire control radar according to any one of claims 1 to 3, characterized in that, The intake switch (5) is a ball valve.

7. The airtight test equipment applicable to aircraft fire control radar according to claim 2 or 3, characterized in that, The exhaust switch (9) is a ball valve.

8. The airtight test equipment applicable to aircraft fire control radar according to any one of claims 1 to 3, characterized in that The gas supply source (1), the drying pipe (2), the gas filter (3), the control valve (4), the intake switch (5) and the regulating valve (6) are all connected by flexible hoses.

9. The airtight test equipment applicable to aircraft fire control radar according to any one of claims 1 to 3, characterized in that, The intake pressure gauge (7) and the test pressure gauge (8) are both integrated on the regulating valve (6).

Images