Rapid inflation device of civil aviation emergency escape slide

Abstract

The utility model discloses a quick inflation device of a civil aviation emergency escape slide, which relates to the technical field of quick inflation devices and comprises a quick inflation device body, a shut-off valve, a high-pressure gas connector and a gas mixing chamber, the shut-off valve is mounted at the top of the quick inflation device body, and the high-pressure gas connector is mounted at the bottom of the quick inflation device body. The high-pressure gas connector is installed on one side of the rapid inflation device body, and the gas mixing chamber is installed at the bottom of the rapid inflation device body. According to the quick inflation device, the detection adjusting assembly is arranged to be matched with the sealing protection assembly to detect and seal the shut-off valve, and the problems that in the operation process of an existing quick inflation device, an effective detection mechanism for the shut-off valve is generally lacked, the change of the inflation state is difficult to accurately respond, and closing is often delayed are solved; the problems that the sealing failure of the shut-off valve is difficult to perceive in time, inconvenience in use is caused, and the use effect of the rapid inflation device is reduced are solved, and the sealing detection effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fast inflation device technical field, concretely is a kind of fast inflation device of civil aviation emergency escape slide. BACKGROUND

[0002] The fast inflation device of civil aviation emergency escape slide is the key equipment of civil aviation emergency evacuation system, and it can quickly inflate the escape slide in the critical moment such as forced landing of the aircraft.The device is composed of a gas source system, an inflation control assembly and a connecting pipeline.The gas source provides high-pressure gas, the control assembly accurately controls the inflation speed and pressure, and the connecting pipeline is responsible for conveying gas to ensure that the slide quickly expands to a safe and usable state, thereby opening an emergency escape channel for passengers.

[0003] For example, a multi-nozzle ejector for inflating a civil aircraft slide with publication number CN207433816U, which includes a suction chamber and a mixing chamber.The lower end of the suction chamber is connected to the upper end of the mixing chamber.A nozzle assembly is provided between the suction chamber and the mixing chamber.A shut-off valve is provided at the air inlet of the upper end of the suction chamber.The gas inlet end of the nozzle assembly is connected to a high-pressure gas interface.The nozzle assembly includes multiple nozzles that are in communication with the mixing chamber.The nozzle assembly includes multiple concentrically arranged annular gas inlet branches and a main gas inlet pipe.The main gas inlet pipe passes through the annular gas inlet branches horizontally and is in communication with each annular gas inlet branch.Multiple nozzles are evenly distributed on each annular gas inlet branch, and the nozzles face the mixing chamber.The gas inlet end of the main gas inlet pipe is connected to a high-pressure gas interface.The ejector efficiency is improved, the structure is simple and reliable, the volume and length are reduced, and the packaging volume and weight of the slide product are greatly reduced.

[0004] Based on the search of the patent number and the deficiencies in the prior art, it is found that:

[0005] The existing fast inflation device generally lacks effective detection mechanism for the shut-off valve during operation, making it difficult to accurately respond to changes in inflation state, and often causing closing delay problems.The sealing failure of the shut-off valve is also difficult to detect in time, causing inconvenience in use and reducing the use effect of the fast inflation device. UTILITY MODEL CONTENTS

[0006] To solve the problems raised in the background art, the purpose of the utility model is to provide a fast inflation device for civil aviation emergency escape slide, which has the advantages of detecting sealing, solves the problem of the existing fast inflation device lacking effective detection mechanism for the shut-off valve during operation, making it difficult to accurately respond to changes in inflation state, and often causing closing delay problems.The sealing failure of the shut-off valve is also difficult to detect in time, causing inconvenience in use and reducing the use effect of the fast inflation device.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of rapid inflator of civil aviation emergency escape slide, including rapid inflator body, shut-off valve, high-pressure gas connector and gas mixing chamber, the shut-off valve is installed at the top of rapid inflator body, the high-pressure gas connector is installed in one side of rapid inflator body, the gas mixing chamber is installed at the bottom of rapid inflator body, the both sides of the top of the inner wall of rapid inflator body are provided with detection adjusting assembly, the outside of shut-off valve is equipped with sealing protection assembly.

[0008] As the utility model is preferred, the detection adjusting assembly includes pressure sensor, the pressure sensor is located at the outside of shut-off valve, the outlet of shut-off valve is provided with flow sensor, the pressure sensor is electrically connected with controller by wire, the controller is electrically connected with flow sensor by wire, the controller is installed on the front of rapid inflator body, the controller is electrically connected with shut-off valve by wire, the controller is electrically connected with remote controller by wire.

[0009] As the utility model is preferred, the sealing protection assembly includes sealing strip, the other side of sealing strip is installed on the inner wall of rapid inflator body, the outside of sealing strip is provided with rubber strip, the inside of rubber strip is provided with sealing groove, the surface of sealing strip is located in the inside of sealing groove, the outside of rubber strip is installed on the inner wall of rapid inflator body, the other end of rubber strip is installed on the outside of shut-off valve, the outside of rubber strip is equipped with protection strip.

[0010] As the utility model is preferred, the both sides of the top of the inner wall of rapid inflator body are provided with mounting groove, the inside of mounting groove is screw-threaded with fixed rod, the inside of fixed rod is installed with the outside of pressure sensor.

[0011] As the utility model is preferred, the shut-off valve adopts ZSNQ type pneumatic piston cut-off valve, and the outlet and the inlet of the shut-off valve are uniformly provided with fixing grooves.

[0012] As the utility model is preferred, the fixing grooves are fixedly connected with sealing rings, and the sealing rings are made of double-layer polytetrafluoroethylene and nitrile rubber composite material.

[0013] As the utility model is preferred, the outside of the controller is provided with a protection box, the back of the protection box is installed with a shock-absorbing block, the shock-absorbing block is installed on the front of the rapid inflator body, and the remote controller is installed in the protection box.

[0014] As the utility model is preferred, a displacement sensor is installed on the valve core of the shut-off valve, and the displacement sensor is electrically connected with the controller by wire.

[0015] Compared with the prior art, the utility model have the advantages that:

[0016] 1, the utility model discloses a detection adjusting assembly cooperates the sealed protection subassembly and carries out the detection sealing to shut -off valve, solved the current fast inflation device in the operation process generally lacks the effective detection mechanism of shut -off valve, difficult accurate response inflation state's change, often appear the problem of closing delay, the sealing failure problem of shut -off valve is also difficult and timely perception, caused the inconvenience in use, reduced fast inflation device use effect's problem, reached the effect of detection sealing.

[0017] 2, the utility model discloses the detection adjusting assembly is set up, and the user is convenient for real -time obtaining the pressure and flow information in the inflation process, and timely grasps the inflation state, and pressure sensor and flow sensor will data transmission give controller, and the controller is adjusted according to this shut -off valve, realizes the accurate control of inflation process, avoids the situation of overinflation or underinflation and takes place, improves inflation efficiency and safety.

[0018] 3, the utility model discloses the sealed protection subassembly is set up, and the user is convenient for reducing the gas leakage risk at shut -off valve, and sealing strip, rubber strip and protection strip cooperate with each other, form multiple sealing structure, effectively prevent gas from escaping, not only guarantee the working efficiency of inflation device, but also can prevent the security risk caused by gas leakage, prolong the service life of shut -off valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the three-dimensional split structure schematic diagram of the utility model;

[0021] Figure 3 It is the three-dimensional structure schematic diagram of the utility model Figure 2 It is the enlarged structure schematic diagram of A place in the utility model.

[0022] In the drawing: 1, fast inflation device body;2, shut -off valve;3, high pressure gas joint;4, mix gas chamber;5, detection adjusting assembly;51, pressure sensor;52, flow sensor;53, controller;54, remote controller;6, sealed protection subassembly;61, sealing strip;62, rubber strip;63, sealing groove;64, protection strip;7, installation groove;8, fixed link;9, fixed groove;10, sealing ring;11, protection box;12, shock pad;13, displacement sensor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] As shown in Figures 1 to 3 The utility model provides a kind of rapid inflator of civil aviation emergency escape slide, including rapid inflator body 1, shut-off valve 2, high-pressure gas joint 3 and gas mixing chamber 4, shut-off valve 2 is installed at the top of rapid inflator body 1, high-pressure gas joint 3 is installed on one side of rapid inflator body 1, gas mixing chamber 4 is installed at the bottom of rapid inflator body 1, both sides of the top of the inner wall of rapid inflator body 1 are provided with detection adjusting assembly 5, and the outside of shut-off valve 2 is equipped with sealing protection assembly 6.

[0025] With reference to Figure 2 Detection adjusting assembly 5 includes pressure sensor 51, and pressure sensor 51 is located at the outside of shut-off valve 2, and the gas outlet end of shut-off valve 2 is provided with flow sensor 52, pressure sensor 51 is electrically connected with controller 53 by wire, controller 53 is electrically connected with flow sensor 52 by wire, controller 53 is installed on the front of rapid inflator body 1, controller 53 is electrically connected with shut-off valve 2 by wire, and controller 53 is electrically connected with remote controller 54 by wire.

[0026] As a kind of technical optimization scheme of the utility model, by setting detection adjusting assembly 5, it is convenient for user to obtain the pressure and flow information in the process of inflation in real time, and timely master inflation state, pressure sensor 51 and flow sensor 52 transmit data to controller 53, and controller 53 adjusts shut-off valve 2 accordingly, to realize the accurate control of inflation process, avoid the situation of overinflation or underinflation, improve inflation efficiency and safety.

[0027] With reference to Figure 3 Sealing protection assembly 6 includes sealing strip 61, the other side of sealing strip 61 is installed on the inner wall of rapid inflator body 1, sealing strip 61 is provided with rubber strip 62 on the outside, sealing groove 63 is formed in the inside of rubber strip 62, the surface of sealing strip 61 is located in sealing groove 63, rubber strip 62 is installed on the inner wall of rapid inflator body 1 on the outside, the other end of rubber strip 62 is installed on the outside of shut-off valve 2, and protection strip 64 is installed on the outside of rubber strip 62.

[0028] As a technical optimization scheme of the utility model, through setting sealing protection assembly 6, it is convenient for user to reduce gas leakage risk at shut-off valve 2, sealing strip 61, rubber strip 62 and protection strip 64 cooperate with each other, form multiple sealing structure, effectively prevent gas from escaping, not only guarantee the working efficiency of inflator, but also prevent the security risk caused by gas leakage, prolong the service life of shut-off valve 2.

[0029] Reference Figure 1 The two sides of the top of the inner wall of the quick inflator body 1 are provided with mounting grooves 7, and the mounting grooves 7 are internally threadedly connected with fixing rods 8, and the inner sides of the fixing rods 8 are installed with the outer sides of the pressure sensors 51.

[0030] As a technical optimization scheme of the utility model, through setting mounting grooves 7 and fixing rods 8, it is convenient for user to install and fix pressure sensors 51, and the cooperation of the mounting grooves 7 and the fixing rods 8 makes the installation of the pressure sensors 51 more stable, and the installation and dismounting process is convenient and fast, which is convenient for the maintenance, repair or replacement of the sensors in the later period.

[0031] Reference Figure 3 The shut-off valve 2 adopts a ZSNQ type pneumatic piston cut-off valve, and the outlet and the inlet of the shut-off valve 2 are uniformly provided with fixing grooves 9.

[0032] As a technical optimization scheme of the utility model, through setting shut-off valve 2 and fixing grooves 9, the fixing grooves 9 provide installation positions for sealing rings 10, and the shut-off valve 2 adopts a ZSNQ type pneumatic piston cut-off valve, which can quickly cut off the gas source and ensure the safety of the inflation process.

[0033] Reference Figure 3 The fixing grooves 9 are fixedly connected with sealing rings 10, and the sealing rings 10 adopt a double-layer polytetrafluoroethylene and nitrile rubber composite material.

[0034] As a technical optimization scheme of the utility model, through setting sealing rings 10, the sealing rings 10 adopt a double-layer polytetrafluoroethylene and nitrile rubber composite material, which combines the advantages of the two materials, has good wear resistance and chemical stability, excellent elasticity, effectively prevents gas leakage, improves the reliability of the inflator, and effectively seals the inside of the shut-off valve 2 by installing the sealing rings 10 in the fixing grooves 9.

[0035] Reference Figure 2 The outer side of the controller 53 is provided with a protection box 11, the back surface of the protection box 11 is installed with a damping block 12, the damping block 12 is installed on the front surface of the quick inflator body 1, and a remote controller 54 is installed in the protection box 11.

[0036] As a technical optimization scheme of the utility model, the protection box 11 and the damping block 12 are arranged, so that the controller 53 is protected from the influence of the external environment. The protection box 11 can prevent dust, water vapor and other impurities from entering the inside of the controller 53, thereby affecting the normal work of the controller 53. The damping block 12 can reduce the influence of vibration on the controller 53 during the operation of the airplane, reduce the risk of controller 53 failure caused by vibration, prolong the service life of the controller 53, and ensure the stable operation of the controller 53.

[0037] Reference Figure 2 The spool of the shutoff valve 2 is provided with a displacement sensor 13, and the displacement sensor 13 is electrically connected to the controller 53 through wires.

[0038] As a technical optimization scheme of the utility model, the displacement sensor 13 is arranged, so that the user can accurately monitor the position of the spool of the shutoff valve 2. The displacement sensor 13 transmits the position information of the spool to the controller 53 in real time, so that the controller 53 can more accurately control the opening and closing degree of the shutoff valve 2, further improve the control accuracy of the inflation process, avoid the inflation abnormal problem caused by the inaccurate position of the spool, and improve the overall performance of the rapid inflation device.

[0039] The working principle and use process of the utility model are as follows: when the emergency escape slide inflation instruction is triggered during use, high-pressure gas flows into the rapid inflation device body 1 from the gas source through the high-pressure gas joint 3. At this time, the shutoff valve 2 is in an open state, and the high-pressure gas can smoothly pass through and flow to the gas mixing chamber 4.

[0040] During the inflation process, the pressure sensor 51 monitors the pressure at the gas inlet end of the shutoff valve 2 in real time, and the flow sensor 52 monitors the gas flow at the gas outlet end of the shutoff valve 2. These sensors transmit the collected data to the controller 53 through wires. When the pressure sensor 51 detects that the pressure is too high or the flow sensor 52 detects that the flow is abnormal, the controller 53 will issue an instruction to the driving mechanism of the shutoff valve 2 through wires according to the preset program and parameters, adjust the opening degree of the shutoff valve 2, accurately control the gas flow, avoid over-inflation or under-inflation of the slide, ensure the stability and safety of the inflation process, and the displacement sensor 13 is installed on the spool of the shutoff valve 2, which monitors the position of the spool in real time and feeds back the information to the controller 53, so that the controller 53 can more accurately control the opening and closing degree of the shutoff valve 2, further improve the accuracy of the inflation control, and achieve the detection effect.

[0041] After the high-pressure gas enters the gas mixing chamber 4, it is mixed with the external air. The specific gas mixing principle of the gas mixing chamber 4 can be determined according to the actual structure. For example, there can be special flow guide structures to promote gas mixing. The mixed gas is inflated into the escape slide at a suitable pressure and flow, so that the escape slide rapidly expands to a safe and usable state.

[0042] The sealing strip 61, the rubber strip 62 and the protection strip 64 cooperate with each other to form a multiple sealing structure during the whole inflation process, the sealing strip 61 is embedded in the sealing groove 63 of the rubber strip 62, the rubber strip 62 is connected to the quick inflation device body 1 and the shut-off valve 2 respectively, and the rubber strip 62 effectively prevents gas from leaking from the connection between the shut-off valve 2 and the body, the protection strip 64 further enhances the protection effect, reduces the influence of external factors on the sealing structure, prolongs the service life of the shut-off valve 2, and the sealing effect is achieved.

[0043] The protection box 11 and the shock-absorbing block 12 protect the controller 53 from the influence of the external environment, the protection box 11 prevents impurities such as dust and water vapor from entering, the shock-absorbing block 12 reduces the damage of aircraft operation vibration to the controller 53, and stable operation of the controller 53 is ensured, when the staff on the aircraft needs to remotely monitor and operate the inflation device, data interaction can be performed between the remote controller 54 and the main controller 53, in the cockpit, the staff can real-time view pressure, flow and other data through the remote controller 54, and remotely adjust the state of the shut-off valve 2 when necessary, so that more flexible and convenient control is realized.

[0044] In summary, the quick inflation device of the civil aviation emergency escape slide can detect and seal the shut-off valve 2 by setting the detection and adjustment assembly 5 and the sealing protection assembly 6, solves the problem that the existing quick inflation device generally lacks an effective detection mechanism for the shut-off valve during operation, is difficult to accurately respond to changes in the inflation state, and often has the problem of delayed closing, the sealing failure of the shut-off valve is difficult to be detected in time, and the use is inconvenient, and the use effect of the quick inflation device is reduced.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid inflation device for emergency escape chutes of civil aviation, comprising a rapid inflation device body (1), a shut-off valve (2), a high-pressure gas joint (3) and a gas mixing chamber (4), characterized in that: The shut-off valve (2) is installed at the top of the quick inflator body (1), the high-pressure gas joint (3) is installed on one side of the quick inflator body (1), the mixing chamber (4) is installed at the bottom of the quick inflator body (1), and detection adjusting assemblies (5) are arranged on both sides of the inner wall top of the quick inflator body (1), and a sealing protection assembly (6) is arranged on the outer side of the shut-off valve (2).

2. A rapid inflation device for an emergency escape chute for civil aviation according to claim 1, characterized in that: The detection adjusting assembly (5) comprises a pressure sensor (51), the pressure sensor (51) is located on the outer side of the shut-off valve (2), a flow sensor (52) is arranged on the gas outlet end of the shut-off valve (2), the pressure sensor (51) is electrically connected with a controller (53) through wires, the controller (53) is electrically connected with the flow sensor (52) through wires, the controller (53) is installed on the front face of the quick inflator body (1), the controller (53) is electrically connected with the shut-off valve (2) through wires, and the controller (53) is electrically connected with a remote controller (54) through wires.

3. A rapid inflation device for an emergency escape slide for civil aviation according to claim 1, characterized in that: The sealing protection assembly (6) comprises a sealing strip (61), the other side of the sealing strip (61) is installed on the inner wall of the quick inflator body (1), a rubber strip (62) is arranged on the outer side of the sealing strip (61), a sealing groove (63) is formed in the inner side of the rubber strip (62), the surface of the sealing strip (61) is located in the sealing groove (63), the outer side of the rubber strip (62) is installed on the inner wall of the quick inflator body (1), the other end of the rubber strip (62) is installed on the outer side of the shut-off valve (2), and a protection strip (64) is installed on the outer side of the rubber strip (62).

4. A rapid inflation device for an emergency escape slide for civil aviation according to claim 2, characterized in that: The installation grooves (7) are formed on both sides of the inner wall top of the quick inflator body (1), and the fixed rods (8) are screwed into the installation grooves (7).

5. The rapid inflation device for a civil aviation emergency escape chute according to claim 1, characterized in that: The shut-off valve (2) is a ZSNQ type pneumatic piston cut-off valve, and fixed grooves (9) are uniformly formed in the outlet and the inlet of the shut-off valve (2).

6. A rapid inflation device for a civil aviation emergency escape chute according to claim 5, characterized in that: The sealing ring (10) is fixedly connected in the fixed groove (9), and the sealing ring (10) is made of double-layer polytetrafluoroethylene and butyronitrile rubber composite material.

7. A rapid inflation device for a civil aviation emergency escape chute according to claim 2, characterized in that: The outer side of the controller (53) is provided with a protection box (11), the back surface of the protection box (11) is provided with a damping block (12), the damping block (12) is installed on the front face of the quick inflator body (1), and the remote controller (54) is installed in the protection box (11).

8. A rapid inflation device for an emergency escape slide for civil aviation according to claim 2, characterized in that: The displacement sensor (13) is installed on the valve core of the shut-off valve (2), and the displacement sensor (13) is electrically connected with the controller (53) through wires.

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