CN109244998B - Cable sealing ring for transformer power distribution cabinet - Google Patents
Cable sealing ring for transformer power distribution cabinet Download PDFInfo
- Publication number
- CN109244998B CN109244998B CN201810947219.0A CN201810947219A CN109244998B CN 109244998 B CN109244998 B CN 109244998B CN 201810947219 A CN201810947219 A CN 201810947219A CN 109244998 B CN109244998 B CN 109244998B
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- CN
- China
- Prior art keywords
- sealing ring
- cable
- ring
- transformer
- gland
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- 238000007789 sealing Methods 0.000 title claims abstract description 94
- 210000004907 gland Anatomy 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000012856 packing Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/22—Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
Abstract
The invention discloses a cable sealing ring for a transformer power distribution cabinet, which comprises: the outer sealing ring is provided with a cable through hole penetrating through the body at the center; the outer seal ring is arranged on the periphery of the cable through hole in a surrounding mode, wherein the outer seal ring is integrally combined with the inner seal ring, a plurality of inwards-protruding elastic seal rings are arranged on the inner side wall of the inner seal ring, and a rigid seal ring is embedded on the inner side wall of the inner seal ring. According to the invention, the sealing performance of the sealing ring and the cabinet body is improved, and meanwhile, the adaptability of the sealing ring to cables with different sizes and specifications can be improved, so that the sealing performance of the sealing ring and the cables is improved, and the cabinet has a wide market application prospect.
Description
Technical Field
The invention relates to the field of transformer power distribution cabinets, in particular to a cable sealing ring for a transformer power distribution cabinet.
Background
The transformer power distribution cabinet is the distribution equipment who is arranged in carrying out electric energy distribution, control, measurement and connection cable among the power supply system, places in outdoor transformer power distribution cabinet to some, often needs to promote waterproof, thermal-insulated and vapour proof properties of switch board, and this not only requires the cabinet body itself to have higher leakproofness, still requires to improve the leakproofness of cable and cabinet body butt joint department, and this often needs to use the cable sealing washer.
The existing cable sealing ring has the following problems: firstly, the sealing performance of the inosculating part of the periphery of the sealing ring and the cabinet body is poor, and particularly, the sealing ring is easy to fall off and separate from the cabinet body after being used for a period of time in an outdoor harsh environment; secondly, the degree of adaptation of the inner ring of the sealing ring and the surface of the cable is poor, and the sealing ring cannot adapt to cables of various shapes and specifications, so that the universality and the sealing performance of the sealing ring are poor.
In view of the above, there is a need to develop a cable gasket for a transformer distribution cabinet, so as to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the cable sealing ring for the transformer power distribution cabinet, which can improve the adaptability of the sealing ring to cables with different sizes and specifications while improving the sealing performance of the sealing ring and the cabinet body, further improves the sealing performance of the sealing ring and the cables, and has wide market application prospect.
To achieve the above objects and other advantages in accordance with the present invention, there is provided a cable gland for a transformer substation, comprising:
the outer sealing ring is provided with a cable through hole penetrating through the body at the center;
an inner sealing ring which is arranged around the periphery of the cable through hole,
the outer sealing ring and the inner sealing ring are integrally combined, a plurality of elastic sealing rings protruding inwards are arranged on the inner side wall of the inner sealing ring, and a rigid sealing ring is embedded on the inner side wall of the inner sealing ring.
Preferably, the outer seal ring includes a lip portion integrally joined to the end portion on an outer periphery thereof and a disk-shaped end portion extending horizontally rightward along the outer periphery of the end portion.
Preferably, the outer sealing ring is internally provided with a squeezing groove arranged along the circumferential direction of the outer sealing ring, and the squeezing groove extends in the lip part and the end part, so that the cross section of the squeezing groove is of an L-shaped structure.
Preferably, the cable through hole is opened at a center of the end portion, and the inner packing is integrally combined to an outer periphery of the cable through hole.
Preferably, assuming that the distance d between the inner side of the lip portion and the outer side of the inner seal ring is 8 mm. ltoreq. d.ltoreq.20 mm.
Preferably, the elastic sealing ring is tapered from outside to inside in the radial direction thereof, and the cross section of the elastic sealing ring is finally made to be in an isosceles triangle structure.
Preferably, the elastic sealing ring has a 60 DEG-90 DEG beta-angle, assuming that the apex angle of the cross section of the elastic sealing ring is beta.
Preferably, the outer sealing ring and the inner sealing ring are both made of elastic materials.
Preferably, the height of the side wall of the inner seal ring is gradually increased from the outside to the inside in the radial direction thereof, so that the outer end wall of the inner seal ring is formed with a sealing slope gradually increased from the outside to the inside.
Preferably, the included angle between the sealing inclined plane and the axial direction of the cable sealing ring is alpha, and the included angle is more than 90 degrees and less than or equal to 135 degrees.
Compared with the prior art, the invention has the beneficial effects that: it can also improve the suitability of sealing washer to not unidimensional, specification cable when improving sealing washer and cabinet body leakproofness, and then has improved the leakproofness of sealing washer with the cable, has wide market perspective.
Drawings
Fig. 1 is a cross-sectional view of a cable gasket for a transformer distribution cabinet according to the present invention in cooperation with a cable.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
Referring to fig. 1, a cable sealing ring 1 for a transformer distribution cabinet includes:
the outer sealing ring 11 is provided with a cable through hole 13 penetrating through the body at the center of the outer sealing ring 11;
an inner packing 12, the inner packing 12 being circumferentially arranged at an outer circumference of the cable through hole 13,
the outer sealing ring 11 and the inner sealing ring 12 are integrally combined, a plurality of elastic sealing rings 121 protruding inwards are arranged on the inner side wall of the inner sealing ring 12, and a rigid sealing ring 13 is embedded on the inner side wall of the inner sealing ring 12. As shown in fig. 1, after the cable 2 is inserted into the cable through hole 13, the rigid sealing ring 13 can be nested in the outer side wall of the inner sealing ring 12, so that the inner sealing ring 12 and the cable 2 are tightened, on one hand, the sealing performance of the inner sealing ring 12 and the cable 2 is increased, on the other hand, the sealing ring 1 and the cable 2 can be prevented from slipping, and the matching reliability of the two is increased.
Further, the outer seal ring 11 includes a lip 111 and a disk-shaped end 112, the lip 111 integrally joins the end 112 on an outer periphery of the end 112 and extends horizontally rightward along the outer periphery of the end 112.
Further, the outer sealing ring 11 is provided with a pressing groove 113 disposed along the circumferential direction, and the pressing groove 113 extends inside the lip portion 111 and the end portion 112, so that the cross section of the pressing groove 113 has an L-shaped structure. The pressing groove 113 can make the outer sealing ring 11 have a certain elasticity while having a relatively strong rigidity, facilitating the installation thereof and providing high sealing performance.
Further, a cable through hole 13 is opened at the center of the end portion 112, and the inner packing 12 is integrally coupled to the outer periphery of the cable through hole 13.
Further, assuming that the distance d between the inner side of the lip 111 and the outer side of the inner seal ring 12 is 8 mm. ltoreq. d.ltoreq.20 mm. In one embodiment, d is 8 mm; in another embodiment, d is 20 mm; in a preferred embodiment, d is 15 mm.
Referring to fig. 1 again, the elastic sealing ring 121 is tapered from outside to inside in the radial direction thereof, and finally the cross section of the elastic sealing ring 121 is in an isosceles triangle structure. Adopt this kind of structure, can reduce the area of contact of elastic sealing ring 121 and cable 2 on the one hand, the cover of wearing when being convenient for assemble, on the other hand is when wearing to overlap after the completion with rigid seal ring 13 nestification in the lateral wall of interior sealing washer 12, can make elastic sealing ring 121 receive extrusion deformation after the oppression, has increased the area of contact of elastic sealing ring 121 and cable 2 to the leakproofness has been improved.
Further, assuming that the apex angle of the cross section of the elastic sealing ring 121 is β, β is 60 ° or more and 90 ° or less. In one embodiment, β is 60 °; in another embodiment, β is 90 °; in a preferred embodiment, β is 75 °.
Further, the outer seal ring 11 and the inner seal ring 12 are both made of an elastic material.
Further, the height of the side wall of the inner seal ring 12 is gradually increased from the outside to the inside in the radial direction thereof, so that the outer end wall of the inner seal ring 12 is formed with a sealing slope 122 gradually increased from the outside to the inside.
Further, assuming that the included angle between the sealing inclined surface 122 and the axial direction of the cable sealing ring 1 is α, α is greater than 90 ° and less than or equal to 135 °. In one embodiment, α is 90 °; in another embodiment, α is 135 °; in a preferred embodiment, α is 118 °.
The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. A cable sealing washer (1) for transformer switch board, its characterized in that includes:
the outer sealing ring (11), the outer sealing ring (11) is equipped with the cable through hole (13) which runs through the body at the center;
an inner seal ring (12), the inner seal ring (12) is arranged around the periphery of the cable through hole (13),
the outer sealing ring (11) and the inner sealing ring (12) are integrally combined, a plurality of elastic sealing rings (121) protruding inwards are arranged on the inner side wall of the inner sealing ring (12), and a rigid sealing ring (13) is embedded on the outer side wall of the inner sealing ring (12);
the outer sealing ring (11) comprises a lip (111) and a disc-shaped end part (112), wherein the lip (111) is integrally combined with the end part (112) on the outer periphery of the end part (112) and horizontally extends rightwards along the outer periphery of the end part (112);
the inner part of the outer sealing ring (11) is provided with a squeezing groove (113) arranged along the circumferential direction of the outer sealing ring, and the squeezing groove (113) extends in the lip part (111) and the end part (112), so that the cross section of the squeezing groove (113) is of an L-shaped structure.
2. The cable grommet (1) for a transformer substation according to claim 1, characterized in that the cable through hole (13) is opened at the center of the end portion (112), and the inner grommet (12) is integrally combined to the outer circumference of the cable through hole (13).
3. Cable gland (1) for a transformer distribution cabinet according to claim 1, characterized in that, given a distance d between the inner side of the lip (111) and the outer side of the inner gland (12), there is 8mm ≦ d ≦ 20 mm.
4. The cable gland (1) for transformer substations according to claim 1, characterized in that the elastic sealing ring (121) is tapered from outside to inside in its radial direction, and finally the cross section of the elastic sealing ring (121) is in an isosceles triangle configuration.
5. Cable gland (1) for transformer cabinets according to claim 4, characterized in that, given a cross-sectional apex angle β of the elastic sealing ring (121), β is 60 ° ≦ β ≦ 90 °.
6. The cable gland (1) for transformer substations according to claim 1, characterized in that the outer sealing ring (11) and the inner sealing ring (12) are both made of an elastic material.
7. The cable gland (1) for transformer substations according to claim 1, characterized in that the height of the side wall of the inner gland (12) is gradually increased from outside to inside in its radial direction, so that the outer end wall of the inner gland (12) is formed with a sealing bevel (122) which is gradually increased from outside to inside.
8. The cable gland (1) for transformer substations according to claim 7, characterized in that, given an angle α between the sealing bevel (122) and the axial direction of the cable gland (1), there is 90 ° < α ≦ 135 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947219.0A CN109244998B (en) | 2018-08-20 | 2018-08-20 | Cable sealing ring for transformer power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947219.0A CN109244998B (en) | 2018-08-20 | 2018-08-20 | Cable sealing ring for transformer power distribution cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109244998A CN109244998A (en) | 2019-01-18 |
| CN109244998B true CN109244998B (en) | 2020-09-29 |
Family
ID=65071074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810947219.0A Active CN109244998B (en) | 2018-08-20 | 2018-08-20 | Cable sealing ring for transformer power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109244998B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0844717A3 (en) * | 1996-11-21 | 1999-06-02 | RXS Kabelgarnituren Gesellschaft mit beschränkter Haftung | Clamping ring for flange junctions in cable fittings or pipes |
| JP3644370B2 (en) * | 2000-09-29 | 2005-04-27 | 住友電装株式会社 | Grommet |
| JP2007227013A (en) * | 2006-02-21 | 2007-09-06 | Honda Motor Co Ltd | Grommet |
| US8573602B2 (en) * | 2011-08-23 | 2013-11-05 | Federal-Mogul Corporation | Radial shaft seal with dust exclusion and hydrodynamic sealing feature |
| JP3193462U (en) * | 2014-07-24 | 2014-10-02 | Nok株式会社 | Sealing device for washing machine |
| CN204532703U (en) * | 2015-03-31 | 2015-08-05 | 张志雄 | A kind of dog valve thread piston shock absorber wind electricity generating system |
| CN205141560U (en) * | 2015-11-04 | 2016-04-06 | 厦门船舶重工股份有限公司 | Protective sheath of installation cable conductor |
| CN107387570A (en) * | 2016-05-16 | 2017-11-24 | 舍弗勒技术股份两合公司 | Cartridge seal device and the bearing for including the cartridge seal device |
| CN106058756A (en) * | 2016-07-29 | 2016-10-26 | 安徽江淮汽车股份有限公司 | Wiring harness protection device |
| CN207173444U (en) * | 2017-08-28 | 2018-04-03 | 江苏远洋车灯有限公司 | One kind top dress clearance lamps wire harness rubber sheath |
-
2018
- 2018-08-20 CN CN201810947219.0A patent/CN109244998B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109244998A (en) | 2019-01-18 |
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