CN214010647U - Rapid verification system for aircraft tire pressure gauge - Google Patents
Rapid verification system for aircraft tire pressure gauge Download PDFInfo
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- CN214010647U CN214010647U CN202120385331.7U CN202120385331U CN214010647U CN 214010647 U CN214010647 U CN 214010647U CN 202120385331 U CN202120385331 U CN 202120385331U CN 214010647 U CN214010647 U CN 214010647U
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- pressure gauge
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- aircraft tire
- tire pressure
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Abstract
The utility model discloses a quick verification system of aircraft tire pressure table, its technical scheme is: the device comprises four parallel inflation pipelines, wherein each inflation pipeline comprises a proportional electromagnetic valve, a low-pressure gas cylinder and an output gas nozzle which are sequentially connected, an exhaust electromagnetic valve is connected between the proportional electromagnetic valve and the low-pressure gas cylinder, and a pressure sensor is arranged between the low-pressure gas cylinder and the output gas nozzle; the proportional electromagnetic valve, the exhaust electromagnetic valve and the pressure sensor are respectively connected with the controller; the proportional solenoid valve is connected with an input air nozzle through a pressure reducing valve, and the input air nozzle is connected with an external air source. The utility model discloses can directly examine and determine aircraft tire pressure table, realize the quick examination of aircraft tire pressure table through the parallelly connected mode of four ways, improve the degree of accuracy.
Description
Technical Field
The utility model relates to a test technical field especially relates to a quick verification system of aircraft tire pressure table.
Background
The tyre pressure gauge is used as a special instrument for measuring the pressure value of the tyre, is widely applied in the fields of traffic and military affairs, and has the performance reliability and safety closely related. Particularly in the field of military aviation, the impact force of the take-off and landing of the airplane on the tire of the airplane is very large, and serious safety accidents can be caused by insufficient or excessive inflation of the tire, so that the pressure of the tire of the airplane needs to be measured before and after the take-off and landing of the airplane, and the accuracy of a measurement result directly relates to the safety of flight training. Therefore, the regular verification of the aircraft tire pressure gauge is very important.
The aircraft tire pressure gauge generally comprises manometer, check valve, zero device and tire air cock joint, during the measurement, inserts the tire air cock with tire air cock joint, and tire air pressure dashes into the manometer in the twinkling of an eye through the check valve to show corresponding pressure value, read the pressure value after, press the zero button, the check valve is opened, the manometer zero. At present, the method for verifying the tire pressure gauge in China mainly comprises the steps of removing fittings such as a check valve, a zero returning device, a tire air nozzle connector and the like of the tire pressure gauge, and verifying a pressure gauge head only according to a verification method of a common pressure gauge. In addition, because of the particularity of the aircraft tire, the accuracy of the aircraft tire pressure gauge is far higher than that of a common automobile tire pressure gauge, and various error factors are easily missed only by calibrating the common pressure gauge, so that the result is misjudged.
The pressure gauge verification is realized by adopting a comparative measurement method, a pressure standard device and a pressure gauge to be detected are simultaneously installed on a pressure making device, and when the pressure making device generates fixed pressure, the indication values of the pressure standard device and the pressure gauge to be detected are compared. The aircraft tire pressure gauge serving as a pressure gauge for special purposes has the general characteristics of pressure measurement, and also has the characteristics of peak value display and instantaneous response of tire pressure measurement, so that the true performance of the aircraft tire pressure gauge cannot be correctly reflected by verification of the general pressure gauge.
At present, there are three similar implementations, all using an external gas source to inflate the container as a pressure source for the assay. The first scheme is to use a standard pressure gauge to detect the inflation pressure of a small air cavity, after the inflation is finished, a valve connected with a tire pressure gauge is opened, the indication value of the tire pressure gauge is observed and compared with the standard pressure gauge, the tire pressure gauge displayed in the scheme does not comprise accessories such as a one-way valve and the like, and the working process of the tire pressure gauge cannot be really simulated by manually opening the valve; the second scheme mainly realizes the quick connection of the air source pipe of the tire pressure gauge, but the design of the air source pipe is improved, so that the applicability of the scheme is reduced, and the pressure drop caused by gas leakage is increased due to the complex design; in addition, the mode of adding the inflation electromagnetic valve and the deflation electromagnetic valve between the pressure container and the tire pressure gauge causes additional pipelines to be added between the tire pressure gauge and the electromagnetic valve, so that the pressure change is large during measurement, and the reason is that the scheme has to select a large container.
The implementation of above-mentioned scheme, it is not enough all to consider to the pressure decline that leads to tire pressure gauge in the twinkling of an eye production, use when can only detecting to the automobile-used tire pressure gauge of low precision, can not satisfy the aviation field, especially military aircraft tire pressure measurement's use, and manual operation and one-way design, it is more to make actual examination work step, it is longer to use time, furthermore, the mode of connecting tire pressure gauge, except that second kind of scheme need reform transform the air supply pipe after realize lug connection, other schemes are threaded connection all still, neither can realize the high-speed joint, also can not adapt tire pressure gauge's various air cock accessories.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a quick verification system of aircraft tire pressure table can directly examine and determine aircraft tire pressure table, realizes the quick examination of aircraft tire pressure table through the parallelly connected mode of four ways, improves the degree of accuracy.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
in a first aspect, an embodiment of the utility model provides an aircraft tire pressure gauge rapid verification system, including four parallel gas charging pipelines, the gas charging pipeline includes proportional solenoid valve, low pressure gas cylinder and output gas nozzle that connect gradually, is connected with exhaust solenoid valve between proportional solenoid valve and the low pressure gas cylinder, installs pressure sensor between low pressure gas cylinder and the output gas nozzle; the proportional electromagnetic valve, the exhaust electromagnetic valve and the pressure sensor are respectively connected with the controller;
the proportional solenoid valve is connected with an input air nozzle through a pressure reducing valve, and the input air nozzle is connected with an external air source.
As a further implementation mode, the air output nozzle adopts an airplane tire air nozzle, and the low-pressure air bottle is used for simulating an airplane tire.
As a further implementation mode, a high-pressure gauge is installed at one end, connected with the input air nozzle, of the pressure reducing valve.
As a further implementation mode, a low-pressure gauge is installed at one end, connected with the proportional solenoid valve, of the pressure reducing valve.
As a further implementation mode, an emergency exhaust valve is arranged between the low-pressure gauge and the proportional solenoid valve.
As a further implementation mode, the low-pressure gas cylinder is a carbon fiber gas cylinder.
As a further implementation mode, the external gas source adopts a high-pressure gas cylinder or an inflator pump.
As a further implementation, the controller has a touch screen.
As a further implementation, four exhaust solenoid valves are connected in parallel with the same proportional solenoid valve.
As a further implementation, the output air nozzle is connected with an aircraft tire pressure gauge.
Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:
(1) one or more embodiments of the utility model directly connect with the gas cylinder through the gas output nozzle, thus reducing the volume change of the container during verification and further reducing the error caused by pressure drop; the tire air tap is used as an output interface, so that the direct and rapid connection between the aircraft tire pressure meter and the equipment is realized, and the applicability of the equipment is also improved.
(2) The utility model discloses a select small volume gas cylinder under the condition that one or more embodiment can realize satisfying the degree of accuracy requirement, realize the parallel design of four ways under the prerequisite of conveniently carrying, satisfy portability and the requirement of cylinder simulation accuracy, realized the quick examination of aircraft tire pressure gauge.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of the present invention according to one or more embodiments;
the device comprises an external air source 1, an input air nozzle 2, a pressure reducing valve 3, a high-pressure gauge 4, a low-pressure gauge 5, an emergency exhaust valve 6, a proportional electromagnetic valve 7, an exhaust electromagnetic valve 8, an exhaust electromagnetic valve 9, a controller 10, a low-pressure air bottle 11, a pressure sensor 12 and an output air nozzle.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
the terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two elements may be connected directly or indirectly through an intermediate medium, or the two elements may be connected internally or in an interaction relationship, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.
The first embodiment is as follows:
the embodiment provides a rapid verification system for an aircraft tire pressure gauge, as shown in fig. 1, an aircraft tire air nozzle is used as an air output nozzle 12, so that the rapid connection without disassembly of the aircraft tire pressure gauge is realized; the gas output nozzle 12 is directly connected with the low-pressure gas cylinder 10, and the low-pressure gas cylinder 10 is used for simulating airplane tires to realize the work simulation of tire pressure measurement. In the embodiment, the gas output nozzle 12 is directly connected with the low-pressure gas bottle 10, so that unnecessary pipelines are avoided, and the pressure drop caused by volume change during measurement is reduced.
In this embodiment, experimental analysis shows that only 2L of low pressure gas cylinder 10 is required to achieve a pressure drop range control of 0.5%.
Preferably, the low-pressure gas cylinder 10 is a carbon fiber gas cylinder.
Further, the output air nozzle 12 is connected with the output end of the low-pressure air bottle 10 through a pipeline, a pressure sensor 11 is connected between the output end and the low-pressure air bottle 10, and the input end of the low-pressure air bottle 10 is connected with the proportional electromagnetic valve 7. The pressure sensor 11 is connected with the controller 9; the pressure sensor 11 monitors the pressure of the low-pressure gas cylinder 10 in real time, and feeds pressure information back to the controller 9, and the controller 9 is used for controlling the switching value of the proportional solenoid valve 7, so that the accurate control of the inflation pressure of the low-pressure gas cylinder 10 is further realized, and the insufficient pressure or the over-inflation is avoided. The controller 9 has a touch screen.
The proportional solenoid valve 7, the low-pressure gas cylinder 10 and the output gas nozzle 12 are sequentially connected to form an inflation pipeline, and the four inflation pipelines are connected in parallel, so that certain portability and gas cylinder simulation accuracy requirements are met.
The four parallel proportional solenoid valves 7 are connected with a controller 9, the exhaust solenoid valve 8 is connected with the proportional solenoid valves 7 in parallel, and the exhaust solenoid valve 8 is connected with the input end of a low-pressure gas bottle 10; the exhaust electromagnetic valve 8 is connected with a controller 9. The controller controls the opening and closing of the proportional solenoid valve 7 and the exhaust solenoid valve 8 according to the pressure condition of the low-pressure gas bottle 10 so as to complete gas supply and gas discharge.
Furthermore, the output end of the pressure reducing valve 3 is connected to the inflation pipeline, namely the pressure reducing valve 3 is connected with a plurality of proportional solenoid valves 7 which are connected in parallel, the input end of the pressure reducing valve 3 is connected with an input air nozzle 2, and the input air nozzle 2 is used for being connected with an external air source 1.
A high-pressure gauge 4 is arranged at one end of the pressure reducing valve 3 connected with the input air tap 2, and a low-pressure gauge 5 is arranged at one end of the pressure reducing valve 3 connected with the proportional solenoid valve 7; the pressure of the external air source 1 and the pressure of the inflation pipeline are monitored through the high-pressure gauge 4 and the low-pressure gauge 5, and insufficient air source pressure is avoided.
An emergency exhaust valve 6 is arranged between the low-pressure gauge 5 and the proportional solenoid valve 7 and used for exhausting the pressure of equipment in an emergency situation to avoid unnecessary damage.
The input air faucet 2 is connected with an external air source 1, and the air source is connected into the equipment through the input air faucet 2.
Further, the external gas source 1 adopts a high-pressure gas cylinder or an inflator pump.
The working principle of the embodiment is as follows:
before the verification work, a high-pressure gas cylinder or an inflator pump is used as an external gas source 1, the high-pressure gas cylinder or the inflator pump is connected into equipment through an input air faucet 2 and enters an inflation pipeline through a pressure reducing valve 3, a high-pressure gauge 4 and a low-pressure gauge 5 are connected to the front and the back of the pressure reducing valve 3 and used for monitoring the pressure of the external gas source 1 and the pressure of the inflation pipeline, and the insufficient pressure of the gas source is avoided.
During detection, firstly, a measuring point to be detected of the tire pressure gauge is input at the controller end, the controller 9 compares a target pressure value of the measuring point with a gas cylinder pressure value fed back by the pressure sensor 11, and then the switching value of the proportional solenoid valve 7 is controlled, so that the low-pressure gas cylinder 10 is rapidly and accurately inflated.
After the inflation is finished, the controller 9 prompts that the calibration can be started, at the moment, the aircraft tire pressure gauge is inserted into each gas output nozzle in sequence, and the corresponding pressure value is read, so that the calibration can be completed. The controller 9 performs operations such as setting of a detection point through the touch screen, and the background color of the text box is set to be red by the detection point in the inflation state, and the background color is set to be green after the inflation is finished. In addition, the control system can automatically store the input model of the checked meter, and when the pressure meters of the same type are checked subsequently, the setting of the checking points can be directly finished only by selecting the corresponding model.
When the whole inflation process is not more than 10 minutes and the indication value verification process of a single aircraft tire pressure gauge is not more than 30 seconds, and batch verification is carried out, the controller can switch the proportional solenoid valve and the exhaust solenoid valve according to the pressure condition of the air bottle to complete air supplement and air release. The control logic is a t +1 formula, namely when the pressure of the t +1 number air bottle changes, the air bottle is considered to be in verification work, at the moment, the system can complete air supplement or air release of the t number air bottle according to needs, and the air charging and discharging states of the screen can be changed in real time.
After the verification is finished, firstly, the input of the external air source 1 is closed, the shutdown is selected at the controller end, the controller 9 controls the proportional solenoid valve 7 and the exhaust solenoid valve 8 to be opened, the pressure in the equipment is evacuated, then the automatic shutdown is carried out, and at the moment, the connection of the external air source can be disconnected.
The emergency vent valve 6 is used to vent the pressure of the equipment in case of emergency, avoiding unnecessary damage.
The embodiment solves the problems of more verification working steps and low working efficiency caused by manual operation and single-path design in the prior art; when in measurement, the pressure drop factor is not considered sufficiently, so that the equipment accuracy cannot meet the use requirement in the aviation field; the connection mode does not consider various fittings of a tire pressure gauge, and has the problems of low applicability and low connection speed.
The mode of simulation tire is passed through to this embodiment, can directly examine and determine aircraft tire pressure table, selects through reasonable subassembly overall arrangement and high accuracy accessory and improves the equipment degree of accuracy by a wide margin to realize the quick examination of aircraft tire pressure table through the parallelly connected mode of multichannel. According to the embodiment, through the optimized pipeline design, unnecessary pressure drop caused by volume change of the container during working is reduced, and the accuracy of the equipment is improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A rapid verification system for an aircraft tire pressure gauge is characterized by comprising four parallel inflation pipelines, wherein each inflation pipeline comprises a proportional electromagnetic valve, a low-pressure gas cylinder and an output gas nozzle which are sequentially connected, an exhaust electromagnetic valve is connected between the proportional electromagnetic valve and the low-pressure gas cylinder, and a pressure sensor is arranged between the low-pressure gas cylinder and the output gas nozzle; the proportional electromagnetic valve, the exhaust electromagnetic valve and the pressure sensor are respectively connected with the controller;
the proportional solenoid valve is connected with an input air nozzle through a pressure reducing valve, and the input air nozzle is connected with an external air source.
2. The aircraft tire pressure gauge rapid verification system according to claim 1, wherein the gas output nozzle is an aircraft tire air nozzle, and the low pressure gas cylinder is used for simulating aircraft tires.
3. The system for rapidly calibrating an aircraft tire pressure gauge according to claim 1, wherein a high pressure gauge is installed at the end of said pressure reducing valve connected to said input nozzle.
4. The system for rapidly calibrating the aircraft tire pressure gauge according to claim 1, wherein a low pressure gauge is installed at one end of the pressure reducing valve connected with the proportional solenoid valve.
5. The system for rapidly calibrating the aircraft tire pressure gauge according to claim 4, wherein an emergency vent valve is installed between the low pressure gauge and the proportional solenoid valve.
6. The system for rapidly calibrating an aircraft tire pressure gauge according to claim 1, wherein the low-pressure gas cylinder is a carbon fiber gas cylinder.
7. The system for rapidly calibrating an aircraft tire pressure gauge according to claim 1, wherein the external gas source is a high-pressure gas cylinder or an inflator pump.
8. The aircraft tire pressure gauge rapid verification system according to claim 1, wherein the controller has a touch screen.
9. The system for rapidly calibrating an aircraft tire pressure gauge according to claim 1, wherein four exhaust solenoid valves are connected in parallel with the same proportional solenoid valve.
10. The system for rapidly calibrating an aircraft tire pressure gauge according to claim 1, wherein the output nozzle is connected to the aircraft tire pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385331.7U CN214010647U (en) | 2021-02-20 | 2021-02-20 | Rapid verification system for aircraft tire pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120385331.7U CN214010647U (en) | 2021-02-20 | 2021-02-20 | Rapid verification system for aircraft tire pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214010647U true CN214010647U (en) | 2021-08-20 |
Family
ID=77296392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120385331.7U Expired - Fee Related CN214010647U (en) | 2021-02-20 | 2021-02-20 | Rapid verification system for aircraft tire pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214010647U (en) |
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2021
- 2021-02-20 CN CN202120385331.7U patent/CN214010647U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210820 |