Combined sealing kit for temperature-height test
The design of the combined sealing kit solves the problems of cable breakage and sealant leakage in temperature-altitude tests, achieving cable sealing and heat insulation, and improving test efficiency and equipment utilization.
Patent Information
- Application Number
- CN202423048711.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In temperature-altitude tests, traditional wiring methods result in expensive test cables needing to be cut or vacuum sealing failing to seal properly at high temperatures, leading to leaks, affecting the normal conduct of the test, and resulting in low equipment utilization.
A combined sealing kit is used, including a sealing kit housing, a conical kit, and a plug. The connection is achieved through clearance fit and fixed clamping. The combination of vacuum sealant and thermal insulation cotton is used to seal and insulate the cable, preventing cable breakage and sealant leakage.
It effectively avoids cable breakage and mud leakage, shortens test preparation time, improves equipment utilization, reduces the labor intensity of operators, and meets the requirements of different levels of temperature-altitude tests.
Smart Images
Figure CN223597733U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to environmental test equipment technical field, concretely relates to a combined sealing kit for temperature-altitude test. BACKGROUND
[0002] At present, when more test pieces are doing temperature-altitude test, the gas pressure pipe and liquid cooling pipe between the test equipment and the test piece need to ensure continuous pressure work during the test, so as to meet the cooling and test piece blowing requirements provided by the liquid cooling test equipment. The test cable cannot be cut off because it must prevent static electricity and ensure impedance matching.
[0003] However, in the process of temperature-altitude test, the traditional wiring method uses a junction box to switch, uses a flat flange plate to block, and uses an aviation plug to be welded on the through hole of the stainless steel plate to block the test box through hole. However, the above methods will cause the expensive test cable to be cut off during the test, or the strength of the vacuum sealant will decrease at high temperature (the tolerance temperature of the vacuum sealant > 80℃), and when the pressure difference between the inside and outside of the test box is large, the softened vacuum sealant will be sucked into the box, causing leakage and interrupting the test, which affects the normal delivery node of the product. SUMMARY
[0004] Therefore, the application provides a combined sealing kit for temperature-altitude test, which can effectively solve the problem of inconvenient cutting of expensive test cables during temperature-altitude test of military or civilian products, and the problem of softening of vacuum sealant at high temperature (the tolerance temperature of the vacuum sealant > 80℃), which causes leakage and delays the delivery of the product. The test preparation time can be greatly shortened, the equipment utilization rate can be effectively improved, and the labor intensity of the operator can be reduced.
[0005] The application provides the following technical scheme: a combined sealing kit for temperature-altitude test, comprising: a sealing kit shell, a plug cover, and a conical sleeve; the sealing kit shell is a cylindrical structure with open ends, the bottom surface of the conical sleeve is open, the sealing kit shell is fixedly installed in a through hole on a test box, the plug cover is fixedly installed at the bottom open end of the sealing kit shell, the conical sleeve is installed at the top open end of the sealing kit shell, a first threading hole is formed in the top surface of the conical sleeve, and a second threading hole is formed in the plug cover; further comprising a test cable, the test cable passes through the inner cavity of the sealing kit shell, one end of the test cable extends into the test box through the first threading hole and the second threading hole respectively, and the other end of the test cable passes through the connection end of the conical sleeve and the sealing kit shell, and the bottom open end of the conical sleeve is filled with vacuum sealant, the vacuum sealant wraps the test cable to block the open end of the conical sleeve and the sealing kit shell.
[0006] According to one embodiment of the present application, a clearance fit is adopted between the through hole and the sealing sleeve shell, and the sealing sleeve shell and the test box are fixedly connected by a fixing clamp.
[0007] According to one embodiment of the present application, the sealing sleeve shell is positioned with the test box through a positioning hole.
[0008] According to one embodiment of the present application, the plug cover is screwed to the bottom of the sealing sleeve shell.
[0009] According to one embodiment of the present application, in the inner cavity of the sealing sleeve shell, the plug cover is filled with heat insulation cotton with the top surface of the conical sleeve.
[0010] According to one embodiment of the present application, the conical sleeve and the joint surface of the sealing sleeve shell adopt a stepped surface fit.
[0011] The sealing and pressure resistance effect of the sealing sleeve shell is as follows: the temperature-height test of each grade such as height≥20000 meters, 80℃<temperature stress≤140℃ can be performed, and the imported vacuum sealing mud does not need to be additionally purchased.
[0012] Compared with the prior art, the above at least one technical solution adopted by the embodiments of the present application can achieve at least the following beneficial effects: the utility model has simple structure, convenient installation and universality. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows: obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0014] Figure 1 is a structural schematic view of the combined sealing sleeve of the utility model embodiment;
[0015] Among them, 1-test chamber, 2-fixing clamp, 3-sealing kit shell, 4-conical kit, 5-vacuum sealant, 6-test cable, 7-plug, 8-insulation cotton, 9-positioning hole, 10-through hole, 11-second wire hole, 12-first wire hole. Detailed Implementation
[0016] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0017] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0018] like Figure 1 As shown, this utility model embodiment provides a combined sealing kit for temperature-altitude testing, including: a sealing kit shell 3, a plug 7, and a conical kit 4; the sealing kit shell 3 is a cylindrical structure with openings at both ends, the conical kit 4 has an opening at the bottom, the sealing kit shell 3 is fixedly installed in a through hole 10 on a test chamber 1, the plug 7 is fixedly installed at the bottom opening end of the sealing kit shell 3, the conical kit 4 is installed at the top opening end of the sealing kit shell 3, a first wire hole is opened on the top surface of the conical kit 4, and a second wire hole 11 is opened on the plug 7; it also includes a test cable 6, which passes through the inner cavity of the sealing kit shell 3, one end of which passes through the first wire hole 12 and the second wire hole 11 respectively and extends into the test chamber 1, and the other end passes through the connection end between the conical kit 4 and the sealing kit shell 3, and the bottom opening end of the conical kit 4 is filled with vacuum sealant 5, which wraps the test cable 6 to seal the opening end between the conical kit 4 and the sealing kit shell 3.
[0019] In this embodiment of the invention, the through hole 10 and the sealing kit housing 3 are fitted with a clearance fit, and the sealing kit housing 3 and the test chamber 1 are fastened together by a fixing clip 2. The sealing kit housing 3 and the test chamber 1 are positioned by a positioning hole 9.
[0020] In the utility model embodiment, the plug cover 7 is screwed to the bottom of the sealing sleeve shell 3.
[0021] In the utility model embodiment, the plug cover 7 and the top surface of the conical sleeve 4 are filled with heat insulation cotton 8 in the inner cavity of the sealing sleeve shell 3.
[0022] In the utility model embodiment, the joint surface of the conical sleeve 4 and the sealing sleeve shell 3 adopts a stepped surface cooperation.
[0023] The utility model provides a combined sealing sleeve for temperature-altitude test, which mainly comprises a sealing sleeve shell 3, a conical sleeve 4 and a plug cover 7; the sealing sleeve is inserted into the through hole 10 on the test box 1, the gap cooperation is adopted between the through hole 10 and the sealing sleeve shell 3, and the sealing sleeve shell 3 and the test box 1 are fastened and connected by the fixed clamp 2; the test box 1 and the sealing sleeve shell 3 adopt the gap plus positioning hole 9 cooperation.
[0024] The utility model embodiment's tool rapid plugging principle is: when temperature-altitude test, the structure of inverted triangle cavity and internal and external pressure difference can make vacuum mud more closely contact with cavity wall, so as to improve the sealing effect.
[0025] When temperature-altitude test, the test cable, liquid cooling pipe and other inconvenient cutting of test piece, the special conical structure of the tool of the utility model embodiment is used, only a small amount of vacuum mud is wrapped around the numerous test cables before temperature-altitude test preparation, and the inner cavity of the conical sleeve 4 can be disassembled tool conical cavity and internal and external pressure difference (outer big inner small) rapid plugging and atmospheric environment passageway, combined double-shell structure can better isolate the radiation effect of high temperature under low pressure state when temperature-altitude test; the combined double-shell structure has better pressure resistance effect, and meets the requirements of national military standard temperature-altitude test.
[0026] The utility model discloses a kind of tool for solving liquid cooling pipe, expensive test cable test without being cut off, temperature-height test can also be successfully completed;When the pressure difference of test box inside and outside becomes large, the strength of vacuum sealant is weakened at high temperature (temperature> 80 ℃), and the sealing is not strict, resulting in micro leakage, even when the pressure difference of test box inside and outside is large, vacuum sealant is softened by heat, is sucked into the box and causes leakage, causing the test condition of temperature-height cannot be realized, resulting in the problem that product is interrupted in periodic test. Test preparation time can be greatly shortened, equipment utilization is effectively improved, and the labor intensity of operator is reduced.
[0027] Specific application, when this kind of test equipment is idle, the conical sleeve of the plugging tool is removed, only the sealing sleeve shell is left, the connection of pure temperature test under normal pressure condition is facilitated, and the temperature-height equipment can be used as temperature test box at this time, that is, test outsourcing is reduced, equipment utilization is improved, and the purpose of cost reduction and efficiency improvement advocated by enterprise is achieved.
[0028] Specific application, according to the number of wire harness, sealing sleeve shell and conical sleeve of different caliber can be selected, the special conical structure of the tool is used, so that the vacuum sealant around the test cable during temperature-height test is assisted by the wall of the tool and the pressure difference between inside and outside (outside large and inside small), so that the wrapping effect of different size wire harness is better, only the test cable is wrapped with appropriate amount of vacuum mud, and temperature-height test is carried out quickly.
[0029] For the temperature range of 80 ℃ < temperature stress ≤ 140 ℃. Insulating tape can be wound on the outside of vacuum mud to increase the strength of sealant;The gap between the front end cable of the tool and the sealant is sealed and filled with heat insulation cotton, which can play the effect of heat insulation (the tolerance temperature of vacuum sealant is ≤80 ℃). In addition, the outer side of conical sleeve tool is reserved with heat insulation felt wrapping position to resist higher temperature temperature-height test. The sealing effect of this method can perform ≥18000 meter temperature-height test.
[0030] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of claims.
Claims
1. A combined sealing kit for temperature-altitude testing, characterized in that, include: The sealing kit housing (3), the plug (7), and the conical kit (4) are as follows: the sealing kit housing (3) is a cylindrical structure with openings at both ends; the bottom surface of the conical kit (4) is open; the sealing kit housing (3) is fixedly installed in the through hole (10) on the test chamber (1); the plug (7) is fixedly installed at the bottom opening end of the sealing kit housing (3); the conical kit (4) is installed at the top opening end of the sealing kit housing (3); a first threading hole is opened on the top surface of the conical kit (4); and a second threading hole (1) is opened on the plug (7). 1); It also includes a test cable (6), which passes through the inner cavity of the sealing kit housing (3), with one end passing through the first wire hole (12) and the second wire hole (11) respectively and extending into the test chamber (1), and the other end passing through the connection end between the conical kit (4) and the sealing kit housing (3), and the bottom opening end of the conical kit (4) is filled with vacuum sealant (5), which wraps the test cable (6) to seal the opening end between the conical kit (4) and the sealing kit housing (3).
2. The combined sealing kit for temperature-altitude testing according to claim 1, characterized in that, The through hole (10) and the sealing kit housing (3) are fitted with a clearance fit, and the sealing kit housing (3) and the test chamber (1) are fastened together by a fixing clamp (2).
3. The combined sealing kit for temperature-altitude testing according to claim 1, characterized in that, The sealing kit housing (3) is positioned with respect to the test chamber (1) via a positioning hole (9).
4. The combined sealing kit for temperature-altitude testing according to claim 1, characterized in that, The plug (7) is screwed onto the bottom of the sealing kit housing (3) by threads.
5. The combined sealing kit for temperature-altitude testing according to claim 1, characterized in that, In the inner cavity of the sealing kit housing (3), the plug (7) and the top surface of the conical kit (4) are filled with heat insulation cotton (8).
6. The combined sealing kit for temperature-altitude testing according to claim 1, characterized in that, The mating surfaces of the conical kit (4) and the sealing kit housing (3) are stepped.