Temperature-humidity-high temperature test cable sealing device

Abstract

The present invention discloses a temperature-humidity-high temperature test cable sealing device, comprising an adapter flange, a V-shaped flange cylinder fixedly arranged at one end of the adapter flange, a V-shaped liner sleeve inserted in the interior of the V-shaped flange cylinder, two rear baffles fixedly arranged at one end of the V-shaped flange cylinder away from the adapter flange, the two rear baffles are symmetrical about the central axis of the V-shaped flange cylinder, and a V-shaped liner sleeve assembled from a first liner and a second liner is arranged in the V-shaped flange cylinder, so that disassembly after the test is convenient for reuse, thereby greatly reducing the manufacturing cost, and at the same time, a spiral groove is provided in the V-shaped liner sleeve, so that the sticking property of the sealing mud inside the V-shaped liner sleeve is increased, thereby increasing the fixing strength of the sealing mud, improving the test reliability, and the sealing time required before the test can be greatly shortened by using this device.

Description

Technical Field

[0001] The invention belongs to the technical field of aerospace product testing, and in particular relates to a temperature-humidity-high temperature test cable sealing device. Background Art

[0002] As the requirements for product environmental adaptability become more stringent, more and more aviation and aerospace products need to undergo temperature-altitude-humidity comprehensive stress adaptability assessment. However, during the test, all tested products must be tested in the test, and the power cord, coaxial cable signal line or optical fiber signal line required for the test must enter the test hole of the test box and connect to the tested product.

[0003] At present, there are generally three ways to seal the test cable during the test: ⑴ In order to prevent air leakage during the test, the test cable needs to be sealed with vacuum sealant. However, the test hole of the test box is a through hole of Ф100mm. When it is sealed only with sealant, it is easy to cause the sealant to fall off the test hole and be sucked into the box under high and low temperature and negative pressure conditions in the box. ⑵ Use sealant and silicone plug to seal at the same time. If there are too many test cables, this sealing method is not only easy to cause air leakage, but sometimes the plug may be sucked to the middle of the test hole or directly sucked into the box. ⑶ When there are many test lines, a special adapter flange is designed according to the combined diameter of the test cables, and then the test line is potted with sealant. This sealing method is generally not adopted. Not only does it require the processing of a special adapter flange, but the sealant solidification cycle generally takes more than three days, which is a long period. After use, due to the solidification of the potting glue, the flange and the test cable can no longer be separated and can only remain in their original state. Not only is the cost high, but the test cable used can only be used on this test equipment. Summary of the invention

[0004] The object of the present invention is to provide a temperature-humidity-high temperature test cable sealing device to solve the problems existing in the prior art of long sealing time, low test reliability, difficulty in disassembly and high flange manufacturing cost.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a temperature-humidity-high test cable sealing device, comprising an adapter flange, a V-shaped flange cylinder is fixedly provided at one end of the adapter flange, a V-shaped liner sleeve is inserted inside the V-shaped flange cylinder, and two rear baffles are fixedly installed on the end of the V-shaped flange cylinder away from the adapter flange, and the two rear baffles are symmetrical up and down about the central axis of the V-shaped flange cylinder.

[0006] Preferably, the adapter flange and the V-shaped flange cylinder are connected together by seamless welding. Preferably, the V-shaped liner sleeve is composed of a first liner and a second liner assembled up and down, and the first liner and the second liner have the same shape and opposite openings. Preferably, a spiral groove is formed on the inner wall of the V-shaped liner sleeve. Preferably, a threaded groove is provided on one end of the V-shaped flange cylinder away from the adapter flange, a waist-shaped hole is provided on the rear baffle, a screw is installed in the threaded groove, and the screw passes through the waist-shaped hole. Compared with the prior art, the beneficial effects of the present invention are as follows: by arranging a V-shaped liner sleeve assembled from a first liner and a second liner in a V-shaped flange cylinder, it is convenient to disassemble after testing for reuse, thereby greatly reducing the manufacturing cost; at the same time, by opening a spiral groove in the V-shaped liner sleeve, the sticking property of the sealing mud inside it is increased, thereby increasing the fixing strength of the sealing mud, improving the test reliability, and this device can greatly shorten the sealing time required before the test. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a front view schematic diagram of the present invention; Figure 2 It is a left side schematic diagram of the present invention; Figure 3 It is a right side schematic diagram of the present invention; Figure 4 It is a front view schematic diagram of the V-shaped liner sleeve of the present invention.

[0007] In the figure: 1. adapter flange, 2. V-shaped flange cylinder, 201. threaded groove, 3. V-shaped liner sleeve, 301. first liner, 302. second liner, 303. spiral groove, 4. rear baffle, 401. waist-shaped hole, 5. screw. DETAILED DESCRIPTION The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0008] See also Figure 1 , Figure 2 and Figure 3 A temperature-humidity-high temperature test cable sealing device comprises an adapter flange 1, a V-shaped flange tube 2 is welded on the right end of the adapter flange 1, a V-shaped liner sleeve 3 is inserted inside the V-shaped flange tube 2, and two rear baffles 4 are fixedly installed on the end of the V-shaped flange tube 2 away from the adapter flange 1 by screws 5, and the two rear baffles 4 are symmetrical about the central axis of the V-shaped flange tube 2.

[0009] See also Figure 1 , Figure 3 and Figure 4, the adapter flange 1 and the V-shaped flange cylinder 2 are connected together by seamless welding, which has better airtightness and sufficient welding strength. The V-shaped liner sleeve 3 is assembled from the first liner 301 and the second liner 302. The first liner 301 and the second liner 302 have the same shape and the openings are opposite. The cross section of the V-shaped liner sleeve 3 is circular and the longitudinal section is trapezoidal. The V-shaped liner sleeve 3 is assembled from the first liner 301 and the second liner 302, which is convenient for disassembly of the V-shaped liner sleeve 3 after the test for reuse. The inner wall of the V-shaped liner sleeve 3 is provided with a spiral groove 303, which is used to enhance the sticking property of the sealing mud in the V-shaped liner sleeve 3, thereby improving the sealing reliability. A threaded groove 201 is provided on the end of the V-shaped flange cylinder 2 away from the adapter flange 1, and a waist-shaped hole 401 is provided on the rear baffle 4. A screw 5 is installed in the threaded groove 201, and the screw 5 passes through the waist-shaped hole 401, which is convenient for adjusting the distance between the two rear baffles 4 to adapt to cables of different diameters.

[0010] The working principle of this embodiment is as follows: first, install the adapter flange 1 on the flange outside the test hole on the wall of the test box through bolts, and then insert the V-shaped liner sleeve 3 composed of the first liner 301 and the second liner 302 into the V-shaped flange tube 2, and then reserve enough length for the test cable to connect the products in the box, and use vacuum sealing mud to evenly rub the gap between the cables. The vacuum sealing mud can seal the length of about 5 to 10 cm. After completion, pass the test cable from the box through the V-shaped liner sleeve 3 to the outside of the box, and the test cable is rubbed with the vacuum sealing mud in the middle between the rear baffles 4. Then wrap the cable with insulation silk cotton at the small-diameter end of the V-shaped liner sleeve 3 for 5cm to 10cm, and then spread the insulation silk cotton flatly, and then move the upper and lower rear baffles 4 to make them close to the insulation silk cotton, and then use screws 5 to fix the upper and lower rear baffles 4 through the waist-shaped hole 401 and the threaded groove 201. After the fixation is completed, insert the sealing mud from the large-diameter end of the V-shaped liner sleeve 3 to make it close to the test cable and the V-shaped liner sleeve 3, and fill the spiral groove 303 with the sealing mud to increase the fixing strength of the sealing mud and the V-shaped liner sleeve 3 to prevent the test cable from moving inward when the box is under negative pressure, and then carry out the sealing test. The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. Temperature-humidity-high temperature test cable sealing device, characterized by: The invention comprises an adapter flange (1), one end of which is fixedly provided with a V-shaped flange cylinder (2), a V-shaped liner sleeve (3) is inserted inside the V-shaped flange cylinder (2), and two rear baffles (4) are fixedly installed on the end of the V-shaped flange cylinder (2) away from the adapter flange (1), and the two rear baffles (4) are symmetrical about the central axis of the V-shaped flange cylinder (2) in the vertical direction.

2. The temperature-humidity-high temperature test cable sealing device according to claim 1, characterized in that: The adapter flange (1) and the V-shaped flange cylinder (2) are connected together by seamless welding.

3. The temperature-humidity-high temperature test cable sealing device according to claim 1, characterized in that: The V-shaped liner sleeve (3) is composed of a first liner (301) and a second liner (302) assembled from top to bottom; the first liner (301) and the second liner (302) are of the same shape and have openings facing each other.

4. The temperature-humidity-high temperature test cable sealing device according to claim 1, characterized in that: The inner wall of the V-shaped liner sleeve (3) is provided with a spiral groove (303).

5. The temperature-humidity-high temperature test cable sealing device according to claim 1, characterized in that: A threaded groove (201) is formed on one end of the V-shaped flange cylinder (2) away from the adapter flange (1), a waist-shaped hole (401) is formed on the rear baffle plate (4), a screw (5) is installed in the threaded groove (201), and the screw (5) passes through the waist-shaped hole (401).

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