Testing device for air filtering test of pneumatic valves of airplanes

Abstract

The utility model discloses a testing device for an air filter test of a pneumatic valve of an airplane, comprising a testing block which is internally provided with a testing cavity, the top end of the testing block is provided with a bolt hole, and the left side and the right side of the testing block are respectively provided with vent holes; the bottom end of the bolt plug is arranged in the bolt hole; a compression spring is arranged at the bottom end of the bolt plug and is used for compressing the gas measuring filter; one end of the adapter is arranged in the vent hole, and the end, away from the test block, of the adapter is connected with a universal quick plug. The device is simple in structure, convenient to operate and good in test effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the testing device technical field of aircraft aerodynamic valve class gas filter test, and especially relates to a testing device for aircraft aerodynamic valve class gas filter test. BACKGROUND

[0002] The civil aviation aircraft air conditioning system provides clean air for the cockpit, passenger cabin and electronic cabin through the engine bleed air, after being processed through multiple valves and filter devices. Among them, the gas filter assembly plays an important filtering role in the air conditioning system, is used for removing impurities in the air, ensures the cleanliness of the air in the system, and avoids system failure caused by impurity accumulation. The gas filter is installed on multiple valves between the engine bleed air and each cabin, and is filtered step by step to ensure the air quality entering each cabin. Due to the importance of the gas filter in the system, the performance and reliability of the gas filter directly affect the operation efficiency and maintenance period of the air conditioning system, so it is particularly important to regularly test and maintain the gas filter. SUMMARY

[0003] The utility model discloses a testing device for aircraft aerodynamic valve class gas filter test, which solves the foregoing problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme as follows:

[0005] A testing device for aircraft aerodynamic valve class gas filter test, comprising:

[0006] A test block is provided with a test cavity inside, a bolt hole is opened at the top end, and an air hole is opened at the left and right sides respectively;

[0007] A bolt plug is arranged in the bolt hole at the bottom end; the bottom end of the bolt plug is provided with a compression spring for compressing the gas filter;

[0008] An adapter is arranged in the air hole at one end, and the end of the adapter away from the test block is connected with a universal quick connector.

[0009] Preferably, the bottom end of the bolt plug is provided with a spring mounting groove for mounting the spring.

[0010] Preferably, the adapter is in the shape of a cross;

[0011] The end of the universal quick connector close to the adapter is provided with a clamping groove for clamping on the adapter.

[0012] Preferably, the inside of the adapter and the universal quick connector is provided with an airflow channel, and the airflow channels are communicated.

[0013] Preferably, the air hole is communicated with the test cavity.

[0014] Preferably, the standard sealing rings are sleeved on the bolt plugs and the adapter.

[0015] The utility model discloses a kind of test devices for aircraft aerodynamic valve class gas filter test, including test block, its inside is provided with test cavity, top is provided with bolt hole, left and right sides are provided with air hole respectively;Bolt plug, bottom end is arranged in bolt hole;The bottom end of bolt plug is provided with compression spring, for compressing gas filter;Adapter, one end is arranged in air hole, and the end of adapter away from test block is connected with general quick plug.The utility model structure is simple, convenient to operate, and test effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a kind of test device structure diagram for aircraft aerodynamic valve class gas filter test of the utility model;

[0017] Figure 2 It is gas filter installation test schematic view of the utility model;

[0018] Figure 3 It is test block structure schematic view of the utility model;

[0019] Figure 4 It is bolt plug structure schematic view of the utility model;

[0020] Figure 5 It is adapter structure schematic view of the utility model;

[0021] Figure 6 It is general quick plug structure schematic view of the utility model.

[0022] In the drawing, 1, test block;2, bolt plug;3, first standard sealing ring;4, compression spring;5, adapter;6, second standard sealing ring;7, general quick plug. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below with reference to the drawings.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0024] Referring to Figures 1-6 The test device for aircraft aerodynamic valve class gas filter test shown in the drawing, including:

[0025] Test block 1, which is provided with a test cavity inside, is provided with a bolt hole at the top end, and is provided with a ventilation hole at the left and right sides respectively. The bolt plug 2 is arranged in the bolt hole at the bottom end; the bottom end of the bolt plug 2 is provided with a compression spring 4 for compressing the measured gas filter. The adapter 5 is arranged in the ventilation hole at one end, and the end of the adapter 5 away from the test block 1 is connected with the universal quick plug 7.

[0026] Preferably, the bottom end of the bolt plug 2 is provided with a spring mounting groove for mounting the spring.

[0027] Preferably, the adapter 5 is in the shape of a cross;

[0028] The end of the universal quick plug 7 close to the adapter 5 is provided with a clamping groove for clamping on the adapter 5.

[0029] Preferably, the inside of the adapter 5 and the universal quick plug 7 are both provided with an airflow channel, and are communicated.

[0030] Preferably, the ventilation hole is communicated with the test cavity.

[0031] Preferably, it further comprises: a plurality of standard seals, and the bolt plug 2 and the adapter 5 are both sleeved with the standard seals.

[0032] The connection mode and assembly relationship of the utility model are as follows:

[0033] The first standard seal 3 and the second standard seal 6 are installed on the bolt plug 2 and the adapter 5 respectively, then the universal quick plug 7 is connected to the adapter 5 through the taper pipe sealing thread connection mode, then the compression spring 4 is installed in the spring mounting groove of the bolt plug 2 for compressing the measured gas filter, that is, the gas filter assembly, finally the assembled bolt plug 2, the first standard seal 3, the second standard seal 6 and the compression spring 4 are installed on the test block 1, and the assembled adapter 5, the standard seal and the universal quick plug 7 are installed on the test block 1 together, so as to complete the installation of the whole gas filter test device.

[0034] Function analysis:

[0035] 1. Reference Figure 1 , the standard seal connection mode is adopted between the bolt plug 2 and the test block, and between the adapter 5 and the test block. The sealing performance of the device is ensured by the good connection mode.

[0036] 2. The taper pipe thread is adopted for the connection between the adapter 5 and the universal quick plug 7, and the sealing performance of the whole device is ensured by the sealing performance of the taper pipe thread.

[0037] 3. For the existing air filter assembly, the bottom mounting surface is a tapered surface. That is, during the installation process, after the air filter is installed in the sealed cavity of the test block, the tapered surface of the air filter is in contact with the plane of the bottom surface of the sealed cavity of the test block through the pressure of the compression spring 4, and the tapered surface of the air filter is in contact with the right angle of the sealed cavity of the test block and is annularly compressed to form a line profile, thereby forming the final line seal. In addition, the upper end and the left and right ends are sealed, so that the air filter is completely sealed in the test device to simulate the installation working condition of the air filter and ensure the off-line test of the air filter.

[0038] 4. Connect the device to the test-related instruments and air source, and ventilate to test the air filter. The right side is the air inlet of the overall device, and the left side is the outlet of the overall device. The upstream and downstream are connected to the related instruments of the pneumatic test bench to ensure the test of the air filter.

[0039] The use method of the utility model is as follows:

[0040] For example, Figure 2 , first, install the measured air filter into the test cavity of the air filter test device, connect the inlet direction adapter 5 and the matching instruments, and connect the outlet adapter 5 and the matching instruments. Finally, install the spring and bolt plug cover instrument on the upper end of the air filter test device, and firmly fix the measured air filter in the sealed cavity of the air filter test device. The assembly of the measured air filter is completed, and finally, according to the data of the related technical data of the air filter assembly, the off-line function test of the air filter under simulated working conditions is performed.

[0041] Material selection:

[0042] The adapter 5 and the universal quick connector 7 are made of 304 stainless steel, which has good processing performance, high toughness, good comprehensive mechanical properties, high specific gravity, can avoid movement when making the base, good corrosion resistance, avoids rust during use, and is easier to save for a long time during use.

[0043] The test block and the bolt plug 2 are made of aluminum alloy 2A12, which has high material strength, high hardness, wear resistance, and pressure resistance. When they are in contact with each other, they will not be severely deformed due to excessive external force, and can well meet the processing size requirements. When cooperating with the parts, the parts will not be damaged.

[0044] For the standard sealing ring, a standard high-performance rubber sealing ring is selected, which has good sealing performance after compression deformation.

[0045] The utility model discloses a beneficial effect is: the utility model discloses a kind of for aircraft aerodynamic valve class gas filter test test device, including test block, its inside is provided with test cavity, top is provided with bolt hole, left and right sides are respectively provided with air hole;Bolt plug 2, bottom end is set in bolt hole;The bottom end of bolt plug 2 is provided with compression spring 4, for compression gas filter;Adapter 5, one end is set in air hole, the end of adapter 5 away from test block is connected with general fast insertion 7.The utility model structure is simple, convenient operation, and test effect is good.The utility model patent has solved the condition that the current market does not have tool to meet the dismounting requirement under the condition that CMM maintenance manual does not give detailed tooling, solved the problem that valve class component is tested off-line, can effectively assist maintenance engineer to carry out relevant gas filter component test, improve the use rate of gas filter, reduce the maintenance cost of component, guarantee the reliability and maintenance cycle of component simultaneously.

[0046] The above only is the preferred implementation of the utility model, it should be pointed out, for the ordinary skill in the art of the present technology, without departing from the principle of the utility model, under the premise of, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A test device for aircraft pneumatic valve type air filter testing, characterized in that, Include: Test block, which is internally provided with test cavity, top end is provided with bolt hole, left and right sides are respectively provided with air hole; Bolt plug, bottom end is arranged in the bolt hole; The bottom end of the bolt plug is provided with a compression spring for compressing the gas filter; Adapter, one end is arranged in the air hole, the end of the adapter away from the test block is connected with a universal quick plug.

2. The test device for testing the gas filter of the aircraft pneumatic valve according to claim 1, wherein, The bottom end of the bolt plug is provided with a spring mounting groove for mounting the spring.

3. The test device for testing the gas filter of the aircraft pneumatic valve according to claim 2, wherein, The adapter is in the shape of a cross; The universal quick plug is provided with a clamping groove near one end of the adapter for clamping on the adapter.

4. The test device for testing the gas filter of the aircraft pneumatic valve according to claim 3, wherein, The adapter and the universal quick plug are both internally provided with airflow channel and communicated.

5. The test device for testing the gas filter of the aircraft pneumatic valve according to claim 4, wherein, The air hole is communicated with the test cavity.

6. The test device for testing the gas filter of the aircraft pneumatic valve according to claim 4, wherein, Further comprising: a plurality of standard seals, the bolt plug and the adapter are both sleeved with standard seals.

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