Aero-engine test wire harness leading-out sealing device

Abstract

The utility model relates to the technical field of aero-engines, and discloses an aero-engine test wire harness leading-out sealing device comprising a substrate, the top of the substrate is provided with a lead seat, and the top of the lead seat is provided with a cable sealing connection assembly. The cable sealing and connecting assembly comprises an air pump, a conveying air pipe, a hollow containing box piece, a connecting base, a hollow round base, a first air bag, a first arc plate, a second arc plate, a second air bag, a communicating air pipe, a connecting rectangular plate and a telescopic pipe piece. According to the aero-engine test wire harness leading-out sealing device, by arranging the cable sealing connection assembly, after the air pump is started, the first air bag and the second air bag can be expanded and are tightly attached to the left side and the right side of the wire harness respectively for sealing connection treatment, so that the sealing assembly is arranged between the top ends of the joints of the cable and the branching component; and the sealing assembly is arranged at the upper end, so that the sealing effect can be guaranteed, and the using effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aero -engine, concretely is a kind of aero -engine test harness lead seal device. BACKGROUND

[0002] Aero -engine is the core component of aircraft, and its performance and reliability are directly related to flight safety and efficiency. During the development, production and maintenance of aero -engine, accurate testing of various parameters of the engine is crucial. As a key component connecting various sensors inside the engine and external test equipment, test harness bears the heavy responsibility of transmitting a large amount of key data. In order to ensure the accuracy of measurement results, the sealing device must have excellent performance when the test harness leads out of the engine to ensure stable operation of the harness and prevent external harsh factors from damaging the harness.

[0003] The prior art discloses a aero -engine test harness lead seal device with publication number CN214314499U, which includes a lead seat, a gland and a distribution component. One end of the lead seat is connected to a case, the gland is connected to the other end of the lead seat, and a cavity is formed between the gland and the lead seat. The case is provided with a harness inlet, the gland is provided with a harness outlet, and the lead seat is provided with a through hole. A plurality of test harnesses pass through the harness inlet, the through hole, the cavity and the harness outlet in sequence. The distribution component is located in the cavity, and the plurality of test harnesses pass around the distribution component. A sealing space for filling sealing material is formed between the distribution component and the plurality of test harnesses. The sealing effect of the aero -engine test harness lead seal device is greatly improved, and the effective sealing time is longer. Under the same sealing material, the working pressure difference can be higher.

[0004] The aero -engine test harness lead seal device described above increases the gap between the test harnesses by using a distribution component, and forms a sealing space, so that the sealing material is fully filled into the gap and the sealing space, greatly improving the sealing effect of the aero -engine test harness lead seal device. However, there is a gap between the top end of the cable and the distribution component, and no sealing component is provided at the top end, which cannot guarantee the sealing effect, and the effect is not good during use, which needs to be improved. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a aero -engine test harness lead seal device to solve the problems raised in the background art.

[0006] To achieve the above object, the utility model provides following technical scheme: an aeroengine test wire harness lead-out sealing device, including the base plate, the top of base plate is provided with the lead -in seat, the top of lead -in seat is provided with cable sealing connection subassembly, the top of cable sealing connection subassembly is provided with sealing assembly, the inside of cable sealing connection subassembly is provided with lead -in harness.

[0007] The cable sealing connection subassembly includes a gas pump, a conveying gas pipe, a hollow placement box, a connecting base, a hollow circular seat, a first air bag, a first arc plate, a second arc plate, a second air bag, a communication gas pipe, a connecting square plate and an extension pipe, the connecting base is fixedly connected to the top of the lead-in seat, the gas pump is fixedly connected to the top right side of the base plate, the conveying gas pipe is fixedly connected to the front of the gas pump, the hollow placement box is fixedly connected to the top of the connecting base, the hollow circular seat is fixedly connected to the top of the hollow placement box, the first air bag is fixedly connected to the inside left side of the hollow placement box, the second air bag is fixedly connected to the inside right side of the hollow placement box, the back left side of the communication gas pipe is fixedly connected to the front of the first air bag, the back right side of the communication gas pipe is fixedly connected to the front of the second air bag, the first arc plate is fixedly connected to the right side of the first air bag close to the front, the second arc plate is fixedly connected to the left side of the second air bag close to the front, and the connecting square plate is fixedly connected to the front of the hollow placement box.

[0008] Preferably, the sealing assembly includes a sealing elastic pad, a sealing ring, a limiting ring and a connecting band, the limiting ring is fixedly connected to the top of the hollow circular seat, the sealing ring is fixedly connected to the top of the limiting ring, and the sealing elastic pad is fixedly connected to the top of the sealing ring.

[0009] Preferably, the connecting band is wound on the surface of the sealing elastic pad, and the lead-in harness is inserted into the inside of the sealing elastic pad.

[0010] Preferably, the communication gas pipe penetrates through the connecting square plate and is connected to the inside of the connecting square plate, and the extension pipe is fixedly connected between the communication gas pipes.

[0011] Preferably, one end of the conveying gas pipe away from the front of the gas pump penetrates through the right side of the hollow placement box and is connected to the right side of the second air bag.

[0012] Preferably, a through groove is formed in the front of the hollow placement box, the diameter of the through groove is matched with the diameter of the communication gas pipe, and the through groove is arranged to allow the communication gas pipe to extend into the inside of the hollow placement box and be connected with the second air bag and the first air bag respectively, so that the first air bag and the second air bag can be inflated after the gas pump is started, and the normal use of the device can be ensured.

[0013] Preferably, the second arc plate is slidably connected to the back of the first arc plate. When the second arc plate slides to the leftmost side of the back of the first arc plate and can no longer slide, it plays a positioning role. When it can no longer slide, the airbag expands and compresses the internal space, thereby achieving a sealing effect.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The aircraft engine test harness lead-out sealing device is equipped with a cable sealing connection component. After the air pump is started, the first and second airbags can expand and fit tightly against the left and right sides of the lead harness respectively to perform a sealing connection. This ensures that there is a sealing component between the top of the cable and the branch component, with no gaps. The sealing component at the top can ensure a good sealing effect and has good performance in use.

[0016] 2. The aircraft engine test harness lead-out sealing device is equipped with a sealing component, which can be used for binding and connection. The user can wrap the connecting strap around the surface of the sealing elastic pad, so that the sealing elastic pad retracts to clamp the multiple lead harnesses for initial positioning and fixation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the cable sealing connection assembly of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Base plate; 2. Lead wire holder; 3. Cable sealing connection assembly; 301. Air pump; 302. Air delivery pipe; 303. Hollow placement box; 304. Connecting base; 305. Hollow round seat; 306. First airbag; 307. First arc plate; 308. Second arc plate; 309. Second airbag; 310. Connecting air pipe; 311. Connecting rectangular plate; 312. Telescopic pipe; 4. Sealing assembly; 401. Sealing elastic gasket; 402. Sealing ring; 403. Limiting ring; 404. Connecting strap; 5. Lead wire bundle. Detailed Implementation

[0022] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] Please refer to Figures 1-4 The present application provides the following technical solutions:

[0024] An aero-engine test wire harness leading-out sealing device, comprising a base plate 1, the top of the base plate 1 is provided with a lead seat 2, the top of the lead seat 2 is provided with a cable sealing connection assembly 3, the top of the cable sealing connection assembly 3 is provided with a sealing assembly 4, and the inside of the cable sealing connection assembly 3 is provided with a lead harness 5.

[0025] The cable sealing connection assembly 3 comprises an air pump 301, a conveying air pipe 302, a hollow placement box 303, a connecting base 304, a hollow circular seat 305, a first air bag 306, a first arc plate 307, a second arc plate 308, a second air bag 309, a communication air pipe 310, a connecting square plate 311 and a telescopic pipe 312. The connecting base 304 is fixedly connected to the top of the lead seat 2. The air pump 301 is fixedly connected to the top right side of the base plate 1. The conveying air pipe 302 is fixedly connected to the front of the air pump 301. The hollow placement box 303 is fixedly connected to the top of the connecting base 304. The hollow circular seat 305 is fixedly connected to the top of the hollow placement box 303. The first air bag 306 is fixedly connected to the inner left side of the hollow placement box 303. The second air bag 309 is fixedly connected to the inner right side of the hollow placement box 303. The back left side of the communication air pipe 310 is fixedly connected to the front of the first air bag 306. The back right side of the communication air pipe 310 is fixedly connected to the front of the second air bag 309. The first arc plate 307 is fixedly connected to the right side of the first air bag 306 close to the front. The second arc plate 308 is fixedly connected to the left side of the second air bag 309 close to the front. The connecting square plate 311 is fixedly connected to the front of the hollow placement box 303. The second arc plate 308 is slidingly connected to the back of the first arc plate 307. The second arc plate 308 slides to the leftmost back of the first arc plate 307 and cannot continue to slide, thereby playing a positioning role. When sliding is impossible, the air bag expands and presses the internal space, thereby achieving a sealing effect. The communication air pipe 310 penetrates through the connecting square plate 311 and is connected to the inside of the connecting square plate 311. The telescopic pipe 312 is fixedly connected between the communication air pipes 310. One end of the conveying air pipe 302 away from the front of the air pump 301 extends through the right side of the hollow placement box 303 and is connected to the right side of the second air bag 309. The front of the hollow placement box 303 is provided with a through slot. The diameter of the through slot is matched with the diameter of the communication air pipe 310. The through slot can make the communication air pipe 310 extend into the hollow placement box 303 and be connected with the second air bag 309 and the first air bag 306 respectively. Therefore, after the air pump 301 is started, the first air bag 306 and the second air bag 309 can be expanded, thereby ensuring the normal use of the device.

[0026] The sealing assembly 4 comprises a sealing elastic pad 401, a sealing ring 402, a limiting ring 403 and a connecting band 404. The limiting ring 403 is fixedly connected to the top of the hollow circular seat 305. The sealing ring 402 is fixedly connected to the top of the limiting ring 403. The sealing elastic pad 401 is fixedly connected to the top of the sealing ring 402. The connecting band 404 is wound on the surface of the sealing elastic pad 401. The lead bundle 5 is inserted into the inside of the sealing elastic pad 401.

[0027] In use, the lead bundle 5 is extended from the top of the sealing elastic pad 401 into the inside of the hollow circular seat 305, and then passes through the lead seat 2, and then the lead bundle 5 can be connected and limited by the cable sealing connection assembly 3 and the sealing assembly 4, and the sealing assembly 4 can be connected and bound, and the user can wrap the connection band 404 on the surface of the sealing elastic pad 401, so that the sealing elastic pad 401 shrinks to clamp the plurality of lead bundles 5, and preliminarily limits and fixes, the cable is extended into the inside of the hollow placing box 303 between the first air bag 306 and the second air bag 309, and then the air pump 301 can be started to cooperate with the conveying air pipe 302 to input gas into the inside of the first air bag 306 and the second air bag 309, the conveying air pipe 302 is directly connected to the second air bag 309, and the second air bag 309 and the first air bag 306 are communicated with each other through the communication air pipe 310, so that the first air bag 306 and the second air bag 309 can be inflated after the air pump 301 is started, and then the second arc plate 308 is driven to slide on the back of the first arc plate 307, and continuously expands until the right side of the first air bag 306 and the left side of the second air bag 309 are tightly attached to the left and right sides of the lead bundle 5 respectively, and the sealing connection process is carried out, and the second arc plate 308 slides to the leftmost side of the back of the first arc plate 307 and cannot continue to slide, at this time, the sealing performance can be ensured, so that the sealing assembly is arranged between the top end of the cable and the junction of the cable and the branch part, and there is no gap, and the sealing assembly arranged at the upper end can ensure the sealing effect, and the effect is good in use.

[0028] 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 the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An aeroengine test harness breakout seal comprising a base plate (1) characterised in that: The top of the substrate (1) is provided with a lead seat (2), the top of the lead seat (2) is provided with a cable sealing connection assembly (3), the top of the cable sealing connection assembly (3) is provided with a sealing assembly (4), and the inside of the cable sealing connection assembly (3) is provided with a lead beam (5); The cable sealing connection assembly (3) comprises an air pump (301), a conveying air pipe (302), a hollow placing box piece (303), a connecting base (304), a hollow round seat (305), a first air bag (306), a first arc plate (307), a second arc plate (308), a second air bag (309), a communication air pipe (310), a connecting square plate (311) and an elastic tube piece (312), the connecting base (304) is fixedly connected to the top of the lead seat (2), the air pump (301) is fixedly connected to the top right side of the substrate (1), the conveying air pipe (302) is fixedly connected to the front face of the air pump (301), the hollow placing box piece (303) is fixedly connected to the top of the connecting base (304), the hollow round seat (305) is fixedly connected to the top of the hollow placing box piece (303), the first air bag (306) is fixedly connected to the inside left side of the hollow placing box piece (303), the second air bag (309) is fixedly connected to the inside right side of the hollow placing box piece (303), the back left side of the communication air pipe (310) is fixedly connected to the front face of the first air bag (306), the back right side of the communication air pipe (310) is fixedly connected to the front face of the second air bag (309), the first arc plate (307) is fixedly connected to the right side of the first air bag (306) close to the front face, the second arc plate (308) is fixedly connected to the left side of the second air bag (309) close to the front face, and the connecting square plate (311) is fixedly connected to the front face of the hollow placing box piece (303).

2. An aircraft engine test cell harness exit seal as defined in claim 1, wherein: The sealing assembly (4) comprises a sealing elastic pad (401), a sealing ring (402), a limiting ring piece (403) and a connecting band (404), the limiting ring piece (403) is fixedly connected to the top of the hollow round seat (305), the sealing ring (402) is fixedly connected to the top of the limiting ring piece (403), and the sealing elastic pad (401) is fixedly connected to the top of the sealing ring (402).

3. An aircraft engine test cell harness exit seal as defined in claim 2 wherein: The connecting band (404) is wound and connected to the surface of the sealing elastic pad (401), and the lead beam (5) is inserted into the inside of the sealing elastic pad (401).

4. An aircraft engine test cell harness exit seal apparatus as defined in claim 1, wherein: The communication air pipe (310) penetrates through the connecting square plate (311) and is connected to the inside of the connecting square plate (311), and the elastic tube piece (312) is fixedly connected between the communication air pipes (310).

5. An aircraft engine test cell harness exit seal as defined in claim 1 wherein: One end of the conveying air pipe (302) away from the front face of the air pump (301) extends and is connected to the right side of the second air bag (309) through the right side of the hollow placing box piece (303).

6. An aircraft engine test cell harness exit seal as defined in claim 1 wherein: The front face of the hollow placing box piece (303) is provided with a through groove, and the diameter of the through groove is matched with the diameter of the communication air pipe (310).

7. An aircraft engine test cell harness exit seal as defined in claim 1 wherein: The second arc plate (308) is slidingly connected to the back face of the first arc plate (307).

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