CN116164913B - Air tightness testing device for cable connector - Google Patents
Air tightness testing device for cable connector Download PDFInfo
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- CN116164913B CN116164913B CN202310442963.6A CN202310442963A CN116164913B CN 116164913 B CN116164913 B CN 116164913B CN 202310442963 A CN202310442963 A CN 202310442963A CN 116164913 B CN116164913 B CN 116164913B
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- cable connector
- cable
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
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- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention belongs to the technical field of air tightness testing of cable joints, and discloses an air tightness testing device of the cable joints. The benefits are as follows: the cable tightness is tested by testing the loss of the light intensity of the spectrophotometer, the air supply device of the traditional differential pressure method is reduced, meanwhile, the pressure change of the differential pressure method is realized, the structure of the detection equipment is simplified, and the requirement on the detection gas is reduced.
Description
Technical Field
The invention belongs to the technical field of air tightness testing of cable joints, and particularly relates to an air tightness testing device of a cable joint.
Background
The existing air tightness test of the cable connector is mainly carried out by a differential pressure method, the air tightness of the cable connector is detected by forming a pressure difference in a detection chamber and measuring the pressure change by a pressure gauge, the method needs to provide high-pressure air for an air tightness testing device, the high-pressure air can be formed in the detection chamber, the testing device needs to be provided with a clamp for fixing the cable connector and the pressure gauge for measuring, and a set of device for generating the high-pressure air is also needed, so that the equipment is excessively large in size, and inconvenience in installation, transportation, debugging and use is caused for temporary operation sites needing frequent movement.
Disclosure of Invention
The aim of the invention is to: the device solves the technical problems that the prior testing device has overlarge equipment volume caused by the existence of a device for generating high-pressure gas, and is inconvenient in installation, transportation, debugging and use for temporary operation places needing to be moved frequently.
In order to achieve the above object, the present invention provides an air tightness testing device for a cable joint.
The specific technical scheme adopted by the invention is as follows:
the utility model provides a cable joint's gas tightness testing arrangement, testing arrangement includes the base, the base top is fixed with the support of the L shape of inversion, the fixed first servo motor in top of support, the side swing joint of support has the second servo motor, the bottom of support is equipped with first guide pillar, the cover is equipped with the slip table on the first guide pillar, the slip table is equipped with the clamp plate, first servo motor is connected with the slip table top through first guide arm, the second servo motor is connected with the clamp plate through the second guide arm, the bottom of support is located the base top and still is equipped with the detection chamber, the clamp plate compresses tightly cable joint in the opening part at detection chamber top, be equipped with the spectrophotometer in the base, the incident optical fiber head and the receiving optical fiber head of spectrophotometer are fixed the bottom of detection chamber, the gas tightness of cable joint is judged through the change of spectrophotometer measurement detection indoor gas.
Further, the detection chamber is divided into a fixed cylinder and a movable cylinder sleeved outside the top of the fixed cylinder, the fixed cylinder is in sealing connection with the movable cylinder, and a fixed seat for fixing a cable connector is arranged at the top of the movable cylinder.
Further, the fixed cylinder and the movable cylinder are connected in a sealing way through a sealing ring.
Further, the side wall of the fixed cylinder is provided with a plurality of second guide posts, the outer sides of the second guide posts are sleeved with reset springs of the movable cylinder, one ends of the reset springs are connected with the side wall of the movable cylinder, and the other ends of the reset springs are connected with the fixed side wall.
Further, the guide posts are uniformly distributed along the circumference of the outer cylindrical surface of the fixed cylinder.
Further, six guide posts are arranged.
Furthermore, the fixed center is provided with a conical hole for fixing the cable structure, the contact surface of the conical hole and the cable structure is provided with a sealing layer made of polyurethane, and the sealing layer is conical ring-shaped.
Further, the bottom surfaces of the fixed cylinder, the movable cylinder and the fixed seat are all provided with reflecting layers.
Further, the incident optical fiber head is provided with a plurality of optical fiber heads so as to cover half of the bottom area of the fixed cylinder, and the receiving optical fiber head is provided with a plurality of optical fiber heads so as to cover half of the bottom area of the fixed cylinder.
Further, a detachable annular activated carbon layer is arranged at the bottom of the inner side of the fixed cylinder.
The invention has the positive effects that: the cable gas tightness test is realized by testing the light intensity loss of the spectrophotometer, the air supply device of the traditional differential pressure method is reduced, meanwhile, the pressure change of the differential pressure method is also realized, the structure simplification of the detection equipment is realized, the requirement on the detection gas is reduced, the cable gas tightness test is realized by testing the light intensity loss of the spectrophotometer, the air supply device of the traditional differential pressure method is reduced, meanwhile, the pressure change of the differential pressure method is also realized, the structure simplification of the detection equipment is realized, and the requirement on the detection gas is reduced.
Drawings
FIG. 1 is a schematic three-dimensional structure of a device for testing the air tightness of a cable joint according to the present invention;
FIG. 2 is a schematic view of a partial three-dimensional structure at a platen of a device for testing the air tightness of a cable joint according to the present invention shown in FIG. 1;
FIG. 3 is a front view of a device for testing the air tightness of the cable joint according to the invention shown in FIG. 1;
FIG. 4 is a cross-sectional view taken along B-B in FIG. 3;
FIG. 5 is an enlarged view at E in FIG. 4;
legend description: 1-base, 2-support, 3-clamp plate, 4-second servo motor, 401-second guide rod, 5-first servo motor, 501-first guide rod, 6-cable support, 7-cable connector, 8-fixed seat, 9-detection chamber, 901-movable cylinder, 902-second guide post, 903-fixed cylinder, 904-incident optical fiber head, 905-receiving optical fiber head, 906-first sealing surface, 907-second sealing surface, 908-third sealing surface, 909-sealing ring, 910-annular active carbon layer, 911-reset spring, 912-optical fiber lead, 913-through hole, 10-operation button, 11-first guide post, 12-connecting seat, 13-spectrophotometer, 14-dovetail groove seat, 15-sliding table.
Detailed Description
The invention is described in detail below with reference to the attached drawings and the specific embodiments:
in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 to 5, the structure diagram of the air tightness testing device for the cable connector provided by the embodiment of the invention is that the testing device comprises a base 1, an inverted L-shaped bracket 2 is fixed at the top of the base 1, a first servo motor 5 is fixed at the top of the bracket 2, a second servo motor 4 is movably connected to the side surface of the bracket 2, a first guide post 11 is arranged at the bottom of the bracket 2, a sliding table 15 is sleeved on the first guide post 11, the sliding table 15 is provided with a pressing plate 3, the first servo motor 5 is connected with the top of the sliding table 15 through a first guide rod 501, the second servo motor 4 is connected with the pressing plate 3 through a second guide rod 401, a detection chamber 9 is further arranged at the top of the base 1 at the bottom of the bracket 2, the pressing plate 3 compresses the cable connector 7 at the opening at the top of the detection chamber 9, a spectrophotometer 13 is arranged in the base 1, an incident optical fiber head 904 and a receiving optical fiber head 905 of the spectrophotometer 13 are fixed at the bottom of the detection chamber 9, and the air tightness of the cable connector 7 is determined by measuring the change of air in the detection chamber 9 through the spectrophotometer 13.
In the embodiment of the invention, the cable air tightness is tested by measuring the loss of the light intensity of the test spectrophotometer 13, the air supply device of the traditional differential pressure method is reduced, meanwhile, the pressure change of the differential pressure method is also realized, the structure simplification of the detection equipment is realized, the requirement on the detection air is reduced, the cable air tightness is tested by measuring the loss of the light intensity of the spectrophotometer 13, the air supply device of the traditional differential pressure method is reduced, the pressure change of the differential pressure method is also realized, the structure simplification of the detection equipment is realized, and the requirement on the detection air is reduced.
Embodiment one:
as shown in fig. 1 to 5, an air tightness testing device for a cable joint comprises a base 1, wherein an inverted L-shaped bracket 2 is arranged at the top of the base 1, the L-shaped bracket 2 comprises a left L-shaped supporting plate and a right L-shaped supporting plate, the bending parts of the left L-shaped supporting plate and the right L-shaped supporting plate face upwards, the non-bending parts are fixed on the top surface of the base 1, the bending parts of the left L-shaped supporting plate and the right L-shaped supporting plate are welded together through a cross beam, a first servo motor 5 is fixed on the cross beam, a connecting seat 12 is fixed on the first servo motor 1 through a first guide rod 501, a first guide column 11 is fixed on the bottom surface of the cross beam, a spring and a sliding table 15 are sleeved on the first guide column 11, the spring is used for assisting the sliding table 15 to reset, and eliminating the accumulated gap of mechanical connection between the sliding table 15 and the first servo motor 5, a dovetail groove seat 14 is fixed at the bottom of the sliding table 15, a pressing plate 3 is arranged in a sliding way, the front end of the pressing plate 3 is provided with a U-shaped groove for accommodating and pressing a cable, the rear end of the pressing plate 3 is connected with a second guide rod 401, the second guide rod 401 is connected with a second servo motor 4, the second servo motor 4 is fixed on the side surface of a sliding table 15, the top surface of the sliding table 15 is connected with a connecting seat 12, the top surface of a base 1 is provided with a detection chamber 9 below the sliding table 15, the detection chamber 9 comprises a fixed cylinder 903, the bottom of the fixed cylinder 903 is provided with a through hole 913, an optical fiber wire 912 is sealed and fixed in the through hole 913, the optical fiber wire 912 is divided into an incident wire of an incident optical fiber head 904 and an emergent wire of a receiving optical fiber head 905, the bottoms of the fixed cylinder 903 are fixed on the incident optical fiber head 904 and the receiving optical fiber head 905, a movable cylinder 901 is sleeved on the top of the fixed cylinder 903, the bottom surface of the movable cylinder 901 is connected with the fixed cylinder 903 through the second guide post 902, the movable cylinder 901 slides on the second guide post 902, the second guide pillar 902 is sleeved with a reset spring 911, the reset spring 911 is used for assisting the reset of the movable barrel 901, the movable barrel 901 and the fixed barrel 903 are provided with a first sealing surface 906, the first sealing surface 906 is sealed through a sealing ring 909, the top of the movable barrel 901 is fixed with a fixed seat 8, the middle part of the fixed seat 8 is provided with a conical hole provided with a fixed cable structure, the contact surface of the conical hole and the cable structure is provided with a sealing layer made of polyurethane, and the sealing layer is conical ring-shaped.
The specific use is as follows:
the cable is placed on the cable support 6, the cable connector 7 is prevented from being in a conical hole in the middle of the fixed seat 8, the second servo motor 4 is started through the operation button 10, the second servo motor 4 drives the pressing plate 3 to slide in the dovetail groove seat 14 through the second guide rod 401, the cable connector 7 is wrapped in the U-shaped groove, then the first servo motor 5 is started, the sliding table 15 is driven by the first guide rod 501 and the connecting seat 12 to slide downwards along the two first guide posts 11, the cable connector 7 is pressed in the conical hole in the middle of the fixed seat 8, and the sealing layer made of polyurethane is arranged on the contact surface of the conical hole and the cable structure, the sealing layer is conical ring-shaped, at the moment, the contact surface of the cable connector 7 and the fixed seat 8 is a third sealing surface 908, the third sealing surface 908 is sealed, the second sealing surface 907 in contact of the fixed seat 8 and the movable cylinder 901 is also in a sealing state, and the first sealing surface 906 is also in a sealing state.
At this time, the first servo motor 5 is kept still, and the device can be used for detecting tightness detection when the pressures inside and outside the detection chamber 9 are the same, namely, the device simply relies on gas diffusion movement, and gas outside the detection chamber 9 diffuses and passes through a leakage point of the cable connector 7 to enter the detection chamber 9, so that the gas component of the detection chamber 9 changes, and at this time, the difference change exists between the monochromatic light emitted by the incident optical fiber head 904 of the spectrophotometer 13 and the monochromatic light received by the receiving optical fiber head 905, so that the cable connector 7 can be judged to leak accordingly.
When the first servo motor 5 drives the sliding table 15 to move downwards continuously, the gas in the detection chamber 9 is compressed by the movable cylinder 901, the concentration of the gas is increased, at this time, the difference value between the monochromatic light emitted by the incident optical fiber head 904 of the spectrophotometer 13 and the monochromatic light received by the receiving optical fiber head 905 is T, the first servo motor 5 drives the sliding table 15 to move downwards continuously, the difference value between the monochromatic light emitted by the incident optical fiber head 904 of the spectrophotometer 13 and the monochromatic light received by the receiving optical fiber head 905 is H, the difference value between H and T is H, then the first servo motor 5 is kept still, after a period of time M, the difference value between H value H1 and T is measured again, and if the difference value between H1 and T is changed, the leakage of the cable connector 7 can be judged accordingly.
Embodiment two:
on the basis of the first embodiment, the bottom surfaces of the fixed cylinder 903, the movable cylinder 901 and the fixed seat 8 are provided with reflective layers, so as to reduce the light intensity loss of monochromatic light in the detection chamber 9 and improve the detection accuracy.
Embodiment III:
on the basis of the second embodiment, the incident optical fiber head 904 is provided with a plurality of optical fiber heads to cover half of the bottom area of the fixing barrel 903, and the receiving optical fiber head 905 is provided with a plurality of optical fiber heads to cover half of the bottom area of the fixing barrel 903, so as to provide more monochromatic light for the detection chamber 9 and receive more monochromatic light, thereby improving the detection accuracy.
Embodiment four:
on the basis of the third embodiment, the bottom of the inner side of the fixed cylinder 903 is provided with a detachable annular activated carbon layer 910, so as to absorb the condensed water in the detection chamber 9 caused by compression of the movable cylinder 901, reduce the absorption of the condensed water to monochromatic light, improve the detection precision, and meanwhile, due to the detachable annular design, the annular activated carbon layer 910 can be fixed on the inner circumference of the fixed cylinder 903, reduce the influence on the light path of the monochromatic light, and facilitate replacement.
The foregoing has outlined broadly some of the aspects and features of various embodiments, which should be construed to be merely illustrative of various potential applications. Other beneficial results can be obtained by applying the disclosed information in a different manner or by combining various aspects of the disclosed embodiments. Other aspects and a more complete understanding of the exemplary embodiments may be derived by referring to the detailed description of the exemplary embodiments when considered in conjunction with the following figures, on the basis of the scope defined by the claims.
The above embodiments illustrate the present invention in detail. The above description is not intended to limit the invention, but rather the invention is not limited to the examples described above, but is intended to cover all changes, modifications, additions or subtractions, and substitutions within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a cable joint's gas tightness testing arrangement, testing arrangement includes the base, the base top is fixed with the support of inverted L shape, the fixed first servo motor in top of support, the side swing joint of support has the second servo motor, the bottom of support is equipped with first guide pillar, the cover is equipped with the slip table on the first guide pillar, the slip table is equipped with the clamp plate, first servo motor is connected with the slip table top through first guide arm, the second servo motor is connected with the clamp plate through the second guide arm, the bottom of support is located the base top still and is equipped with the detection room, the clamp plate compresses tightly cable joint in the opening part at detection room top, characterized in that, be equipped with the spectrophotometer in the base, the incident optical fiber head and the receiving optical fiber head of spectrophotometer are fixed in the bottom of detection room, the gas's of detection room change is measured through the spectrophotometer and is judged cable joint's gas tightness;
the detection chamber is divided into a fixed cylinder and a movable cylinder sleeved outside the top of the fixed cylinder, the fixed cylinder is connected with the movable cylinder in a sealing way, a fixed seat for fixing a cable joint is arranged on the top of the movable cylinder, and the fixed cylinder is connected with the movable cylinder in a sealing way through a sealing ring;
the side wall of the fixed cylinder is provided with a plurality of second guide posts, the outer side of each second guide post is sleeved with a reset spring of the movable cylinder, one end of each reset spring is connected with the side wall of the movable cylinder, and the other end of each reset spring is connected with the fixed side wall;
the first servo motor drives the sliding table to slide downwards along the two first guide posts through the first guide rods and the connecting seat, the cable connector is pressed in the conical hole in the middle of the fixing seat, the first servo motor keeps motionless, the outside gas of the detection chamber is diffused through the leakage point of the cable connector to enter the detection chamber by simply relying on gas diffusion movement, so that the gas composition of the detection chamber changes, at the moment, the variation of difference exists between the monochromatic light emitted by the incident optical fiber head of the spectrophotometer and the monochromatic light received by the receiving optical fiber head, and the leakage of the cable connector can be judged according to the variation, so that the device can be used for detecting the tightness detection when the indoor and outdoor pressures are the same; when the first servo motor drives the sliding table to move downwards continuously, gas in the detection chamber is compressed by the movable cylinder, the concentration of the gas is increased, and the device judges the air tightness of the cable connector by measuring the change of the gas in the detection chamber through the spectrophotometer.
2. The device for testing the air tightness of the cable connector according to claim 1, wherein the second guide posts are uniformly distributed along the circumference of the outer cylindrical surface of the fixed cylinder.
3. The device for testing the air tightness of the cable connector according to claim 2, wherein six second guide posts are arranged.
4. A device for testing the air tightness of a cable connector according to claim 3, wherein the center of the fixing seat is provided with a conical hole for fixing the cable structure, the contact surface of the conical hole and the cable structure is provided with a sealing layer made of polyurethane, and the sealing layer is conical ring-shaped.
5. The device for testing the air tightness of the cable connector according to any one of claims 1 to 4, wherein the bottom surfaces of the fixed cylinder, the movable cylinder and the fixed seat are provided with light reflecting layers.
6. The device according to claim 5, wherein the incident optical fiber head is provided with a plurality of optical fiber heads to cover half of the bottom area of the fixed cylinder, and the receiving optical fiber head is provided with a plurality of optical fiber heads to cover half of the bottom area of the fixed cylinder.
7. The device for testing the air tightness of the cable connector according to claim 6, wherein a detachable annular activated carbon layer is arranged at the bottom of the inner side of the fixed cylinder.
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| CN202310442963.6A CN116164913B (en) | 2023-04-24 | 2023-04-24 | Air tightness testing device for cable connector |
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| CN202310442963.6A CN116164913B (en) | 2023-04-24 | 2023-04-24 | Air tightness testing device for cable connector |
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| CN116164913B true CN116164913B (en) | 2023-08-04 |
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| CN117387869B (en) * | 2023-11-30 | 2024-05-14 | 北京哈工汇宇科技有限公司 | Dual-channel air tightness intelligent detection instrument based on differential pressure subdivision method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184193A (en) * | 1989-01-04 | 1993-02-02 | Guided Wave | Dual fiber optic spectrophotometer |
| JP2008224307A (en) * | 2007-03-09 | 2008-09-25 | Canon Anelva Technix Corp | Leakage inspection device |
| JP2009508127A (en) * | 2005-09-13 | 2009-02-26 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | Leak detector |
| CN201697760U (en) * | 2010-04-30 | 2011-01-05 | 中国安全生产科学研究院 | Leakage detecting system for respiratory protection appliance |
| CN107907278A (en) * | 2017-10-30 | 2018-04-13 | 广西电网有限责任公司电力科学研究院 | A kind of method for conducting leak test of power transformer oil conservater capsule |
| CN108845079A (en) * | 2018-06-08 | 2018-11-20 | 天津市爱德恒业科技发展有限公司 | A kind of Multifunctional air quality detector device |
| CN109211485A (en) * | 2017-07-06 | 2019-01-15 | 亚得克 | Hollow part gas leakage identifies the device of technique and similar technique application |
| CN112304878A (en) * | 2019-07-30 | 2021-02-02 | 杭州米欧仪器有限公司 | Spectrophotometer optical fiber head assembly, photometer and method for measuring solution concentration |
| CN215524938U (en) * | 2021-01-23 | 2022-01-14 | 上海仁莫电子科技有限公司 | Sealing equipment for testing connector joint sealing performance |
| CN113932998A (en) * | 2021-11-03 | 2022-01-14 | 深圳供电局有限公司 | Device and method for testing sealing performance of cable intermediate joint |
| CN113984288A (en) * | 2021-10-22 | 2022-01-28 | 中国能源建设集团江苏省电力设计院有限公司 | Cable tunnel lining water leakage detection device and method |
| CN114061856A (en) * | 2021-10-28 | 2022-02-18 | 深圳供电局有限公司 | Pressure leakage testing device and method |
| CN114405559A (en) * | 2022-01-19 | 2022-04-29 | 云图启迪(南京)科技有限公司 | Constant-pressure temperature changing device and method applied to gas monitoring |
| CN114894404A (en) * | 2022-07-14 | 2022-08-12 | 长缆电工科技股份有限公司 | Tool and method for quickly detecting air tightness of high-voltage cable accessory |
| CN217688309U (en) * | 2022-04-02 | 2022-10-28 | 金卡智能集团股份有限公司 | Pressure resistance strength testing device for gas meter |
| CN115407031A (en) * | 2022-10-31 | 2022-11-29 | 广东惠丰达电气设备有限公司 | Gas component detection device for improving sensitivity by pressurizing concentrated gas |
-
2023
- 2023-04-24 CN CN202310442963.6A patent/CN116164913B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184193A (en) * | 1989-01-04 | 1993-02-02 | Guided Wave | Dual fiber optic spectrophotometer |
| JP2009508127A (en) * | 2005-09-13 | 2009-02-26 | インフィコン ゲゼルシャフト ミット ベシュレンクテル ハフツング | Leak detector |
| JP2008224307A (en) * | 2007-03-09 | 2008-09-25 | Canon Anelva Technix Corp | Leakage inspection device |
| CN201697760U (en) * | 2010-04-30 | 2011-01-05 | 中国安全生产科学研究院 | Leakage detecting system for respiratory protection appliance |
| CN109211485A (en) * | 2017-07-06 | 2019-01-15 | 亚得克 | Hollow part gas leakage identifies the device of technique and similar technique application |
| CN107907278A (en) * | 2017-10-30 | 2018-04-13 | 广西电网有限责任公司电力科学研究院 | A kind of method for conducting leak test of power transformer oil conservater capsule |
| CN108845079A (en) * | 2018-06-08 | 2018-11-20 | 天津市爱德恒业科技发展有限公司 | A kind of Multifunctional air quality detector device |
| CN112304878A (en) * | 2019-07-30 | 2021-02-02 | 杭州米欧仪器有限公司 | Spectrophotometer optical fiber head assembly, photometer and method for measuring solution concentration |
| CN215524938U (en) * | 2021-01-23 | 2022-01-14 | 上海仁莫电子科技有限公司 | Sealing equipment for testing connector joint sealing performance |
| CN113984288A (en) * | 2021-10-22 | 2022-01-28 | 中国能源建设集团江苏省电力设计院有限公司 | Cable tunnel lining water leakage detection device and method |
| CN114061856A (en) * | 2021-10-28 | 2022-02-18 | 深圳供电局有限公司 | Pressure leakage testing device and method |
| CN113932998A (en) * | 2021-11-03 | 2022-01-14 | 深圳供电局有限公司 | Device and method for testing sealing performance of cable intermediate joint |
| CN114405559A (en) * | 2022-01-19 | 2022-04-29 | 云图启迪(南京)科技有限公司 | Constant-pressure temperature changing device and method applied to gas monitoring |
| CN217688309U (en) * | 2022-04-02 | 2022-10-28 | 金卡智能集团股份有限公司 | Pressure resistance strength testing device for gas meter |
| CN114894404A (en) * | 2022-07-14 | 2022-08-12 | 长缆电工科技股份有限公司 | Tool and method for quickly detecting air tightness of high-voltage cable accessory |
| CN115407031A (en) * | 2022-10-31 | 2022-11-29 | 广东惠丰达电气设备有限公司 | Gas component detection device for improving sensitivity by pressurizing concentrated gas |
Non-Patent Citations (1)
| Title |
|---|
| 城轨车辆电缆密封接头密封性能试验研究;沈鑫成 等;机械制造;全文 * |
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