CN107171211B - Intelligent low-voltage comprehensive distribution box body of public transformer station - Google Patents
Intelligent low-voltage comprehensive distribution box body of public transformer station Download PDFInfo
- Publication number
- CN107171211B CN107171211B CN201710562532.8A CN201710562532A CN107171211B CN 107171211 B CN107171211 B CN 107171211B CN 201710562532 A CN201710562532 A CN 201710562532A CN 107171211 B CN107171211 B CN 107171211B
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- box body
- stainless steel
- elastic sleeve
- elbow
- waterproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cable Accessories (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses an intelligent low-voltage comprehensive distribution box body of a public transformer station, which comprises a box body, wherein one side of the box body is provided with a wire inlet, the other side of the box body is provided with a wire outlet, the wire inlet and the wire outlet are respectively provided with a matched stainless steel waterproof elbow, one end of the stainless steel waterproof elbow is tightly connected with the outer side wall of the box body and is respectively fixed on the wire inlet and the wire outlet, the other end of the stainless steel waterproof elbow is bent towards the lower end of the box body, an elastic sleeve is sleeved in the stainless steel waterproof elbow, and two ends of the elastic sleeve are limited at two ends of the stainless steel waterproof elbow; the invention has the advantages of better plugging effect, strong compatibility and convenient later maintenance.
Description
Technical Field
The invention belongs to the technical field of distribution boxes, relates to a distribution box body, and in particular relates to an intelligent low-voltage comprehensive distribution box body for a public transformer station.
Background
The intelligent low-voltage comprehensive distribution box (JP cabinet) for public transformer is suitable for distribution systems of vast rural distribution transformers, rated frequency alternating current of 50Hz, rated working voltage of 400V, rated current of 630A and below, and is installed and used on outdoor columns and used as comprehensive low-voltage equipment for electric energy distribution, electric energy metering, electric energy information acquisition and monitoring, measurement (PDK), reactive compensation and protection.
The comprehensive distribution box is provided with electrical elements such as distribution monitoring (100 kVA and above transformer installation) and reactive compensation integrated controllers, measurement current transformers, HR series isolation disconnecting switches, high breaking automatic reclosing leakage comprehensive protection outlet switches, composite solid state relays, outlet/inlet terminals and the like according to different transformer capacities, and the inside of the box is divided into a measurement chamber, an isolation disconnecting switch chamber, a feed switch chamber and a reactive compensation chamber, and the comprehensive distribution box is complex in internal structure and multiple in functions.
The existing comprehensive distribution box wire inlet mode adopts a box side wire inlet mode, the wire outlet mode adopts two modes of box side wire outlet and lower wire outlet, the wire inlet and outlet ports are all plugged by an epoxy resin plate which is not less than 2mm, the problem that the epoxy resin plate deforms and is not tight in plugging and easy to enter water exists when the service life is too long, and in addition, when the wire outlet mode adopts the box lower wire outlet mode, the wire outlet ports are frequently corroded by rainwater, plugging is not tight more easily, and the problem that water enters easily occurs.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the intelligent low-voltage comprehensive distribution box body of the public transformer station, which has better plugging effect, strong compatibility and convenient later maintenance.
The purpose of the invention is realized in the following way: the utility model provides a public transformer intelligent low pressure comprehensive distribution box, includes the box body, one side of box body is equipped with the inlet wire, the opposite side of box body is equipped with the outlet wire, all be equipped with supporting stainless steel waterproof elbow on inlet wire and the outlet wire, the one end of stainless steel waterproof elbow is closely connected in the lateral wall of box body and is fixed in on inlet wire and the outlet wire respectively, the other end of stainless steel waterproof elbow is bent to the lower extreme setting of box body, stainless steel waterproof elbow endotheca is equipped with elastic sleeve, elastic sleeve's both ends limit is located stainless steel waterproof elbow both ends;
the stainless steel waterproof elbow mainly comprises an elbow, a lock washer and a lock nut set, wherein an integrally formed single limit ring is arranged at one end, close to a box body, of the elbow, an external thread is arranged at the outer side of the single limit ring, the lock washer is close to the single limit ring and sleeved on the external thread, a waterproof rubber cushion is arranged between the single limit ring and the lock washer, an integrally formed double limit ring is arranged at one end, far away from the box body, of the elbow, the double limit rings are arranged at a certain distance apart, an external thread is arranged between the double limit rings, the lock nut set consists of a female nut and a male nut, the other end, which is limited between the double limit rings, of the female nut is sleeved on the outer side of the male nut, one end of the male nut is sleeved on the other end of the female nut, which is hexagonal head and the outer side of the male nut, a waterproof rubber cushion is arranged between the female nut and the double limit ring, and a stainless steel support washer and the waterproof rubber cushion are sequentially arranged between the outer end of an elastic sleeve and the inner end of the male nut;
the strip-shaped opening is formed in the side wall of the elastic sleeve, the strip-shaped opening penetrates through the space between the two ends of the elastic sleeve, the outer diameter of the elastic sleeve is smaller than the inner diameter of the bent pipe, 4 limiting plates which are integrally formed are arranged at the two ends of the elastic sleeve, the 4 limiting plates are uniformly and symmetrically distributed at the two ends of the elastic sleeve and are staggered in the strip-shaped opening, and the elastic sleeve is sleeved in the bent pipe and is erected at the two ends of the bent pipe through the 4 limiting plates to realize that the two ends of the elastic sleeve are limited at the two ends of the stainless steel waterproof elbow.
Preferably, the elastic sleeve is made of thermoplastic elastomer.
Preferably, the waterproof rubber pad is a rubber pad or a silica gel pad.
Preferably, the bent pipe is a 90-degree bent pipe.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) On the basis of the existing plugging of the epoxy resin plate, a stainless steel waterproof elbow is additionally arranged, and the stainless steel waterproof elbow is subjected to omnibearing waterproof design by adopting a waterproof rubber pad, so that the plugging effect of the box body is better;
(2) An elastic sleeve is additionally arranged in the stainless steel waterproof elbow so as to conveniently fix cables with different specifications, and the elastic sleeve is used for being compatible with cables with different diameters, so that the compatibility of the stainless steel waterproof elbow is improved;
(3) The stainless steel waterproof elbow is connected with the box body through threads, and the stainless steel waterproof elbow is connected with the box body through threads, so that the stainless steel waterproof elbow is convenient to install and detach, and the box body is convenient to maintain in the later period.
Drawings
Fig. 1 is a schematic diagram of the overall front view of the present invention.
Fig. 2 is a schematic front view of the stainless steel waterproof elbow of the present invention.
Fig. 3 is a schematic cross-sectional view of the stainless steel waterproof elbow of the present invention.
Fig. 4 is a schematic diagram of components of the stainless steel waterproof elbow of the present invention prior to assembly.
Fig. 5 is a schematic cross-sectional structural view of the components of the stainless steel waterproof elbow of the present invention prior to assembly.
Fig. 6 is a schematic diagram of the components of the stainless steel waterproof elbow of the present invention prior to assembly.
In the figure: 1. the stainless steel waterproof box comprises a box body 2, a stainless steel waterproof elbow 21, an elbow 22, a lock washer 23, a lock nut group 231, a female nut 232, a male nut 24, a single limiting ring 25, a double limiting ring 26, a stainless steel support washer 3, an elastic sleeve 31, a strip-shaped opening 32, a limiting plate 4 and a waterproof rubber mat.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the utility transformer intelligent low-voltage comprehensive distribution box body provided by the invention comprises a box body 1, wherein the box body 1 can be any existing utility transformer intelligent low-voltage comprehensive distribution box, and has a large general appearance due to strong functions. One side of the box body 1 is provided with a wire inlet, and the other side of the box body 1 is provided with a wire outlet. The stainless steel waterproof elbow 2 matched with the cable is arranged on the cable inlet and the cable outlet and is used for fixing, connecting and connecting cables of the cable inlet and the cable outlet, so that the cable connection is facilitated. Specifically, one end of the stainless steel waterproof elbow 2 is tightly connected to the outer side wall of the box body 1 and is respectively fixed on the wire inlet and the wire outlet, the tight connection is favorable for waterproofing, the other end of the stainless steel waterproof elbow 2 is bent to the lower end of the box body 1, the lower end of the stainless steel waterproof elbow is bent to the box body 1 for preventing rainwater from entering the distribution box from the stainless steel waterproof elbow 2, an elastic sleeve 3 is sleeved in the stainless steel waterproof elbow 2 and used for sleeving a cable, and the cable can be firmly fixed on the wire inlet and the wire outlet. The two ends of the elastic sleeve 3 are limited at the two ends of the stainless steel waterproof elbow 2, so that the elastic sleeve 3 is prevented from moving in the stainless steel waterproof elbow 2, and cables can conveniently enter and exit the distribution box.
Specifically, the stainless steel waterproof elbow 2 mainly comprises an elbow 21, a lock washer 22 and a lock nut set 23, wherein the elbow 21 is used for changing the cable receiving and outputting direction, the lock washer 22 is used for the stainless steel waterproof elbow 2 to be more tightly connected to the side wall of the box body 1, and the lock nut set 23 is used for fixing the cable at one end, far away from the box body 1, of the stainless steel waterproof elbow 2. An integrally formed single limiting ring 24 is arranged at one end of the bent pipe 21, which is close to the box body 1, and is used for limiting the depth of the bent pipe 21 screwed into the side wall of the box body 1. The part of the bent pipe 21 positioned outside the single limiting ring 24 is provided with external threads, the wire inlet and the wire outlet of the box body 1 are provided with corresponding internal threads, and the stainless steel waterproof elbow 2 is tightly connected to the box body 1 through the mutual matching of the external threads and the internal threads. The anti-loose washer 22 is closely adjacent to the single limiting ring 24 and sleeved on the external thread, so that the stainless steel waterproof elbow 2 is prevented from falling off from the box body 1, and long-term working stability is good. A waterproof rubber cushion 4 is arranged between the single limiting ring 24 and the lock washer 22 to prevent rainwater from entering. One end of the bent pipe 21 far away from the box body 1 is provided with an integrally formed double-limit ring 25 for being matched with the lock nut group 23. The double limiting rings 25 are arranged at a certain distance apart, external threads are arranged between the double limiting rings 25 on the bent pipe 21 and used for being further matched with the lock nut group 23, and the connecting effect is good and the long-term working stability is good. The locking nut group 23 consists of a female nut 231 and a male nut 232, and the locking nut group 23 is screwed into the female nut 231 through the male nut 232 to fix the cable at one end, far away from the box body 1, of the stainless steel waterproof elbow 2. One end of the female nut 231 is limited between the double limiting rings 25, the other end of the female nut 231 is sleeved outside the male nut 232, one end of the male nut 232 is sleeved in the female nut 231, the other end of the male nut 232 is a hexagon head, the hexagon head is flush with the outer side surface of the female nut 231, a waterproof rubber cushion 3 is arranged between the female nut 231 and the double limiting rings 25 in the female nut 231, and a stainless steel supporting washer 26 and a waterproof rubber cushion 4 are sequentially arranged between the outer end of the elastic sleeve 3 and the inner end of the male nut 232 in the female nut 231. Wherein, stainless steel support washer 26 is used for compressing the elastic sleeve 3 and is located the outer end of return bend 21, provides sealed support for waterproof cushion 4 simultaneously. Wherein, waterproof cushion 4 is used for preventing the rainwater from getting into in the box body 1.
Specifically, a strip-shaped opening 31 is formed in the side wall of the elastic sleeve 3, the strip-shaped opening 31 penetrates through the space between two ends of the elastic sleeve 3, and the strip-shaped opening 31 is used for changing the pipe diameter of the elastic sleeve 3 so as to be compatible with the use of cables with different diameters. The outer diameter of the elastic sleeve 3 is smaller than the inner diameter of the bent pipe 21, so that a movable space is provided for the elastic sleeve 3. The two ends of the elastic sleeve 3 are provided with 4 limiting plates 32 which are integrally formed, the 4 limiting plates 32 are uniformly and symmetrically distributed at the two ends of the elastic sleeve 3 and are staggered in the arrangement of the strip-shaped openings 31, the elastic sleeve 3 is sleeved in the elbow 21 and is erected at the two ends of the elbow 21 through the 4 limiting plates 32, so that the two ends of the elastic sleeve 3 are limited at the two ends of the stainless steel waterproof elbow 2.
According to the further optimized technical scheme, the elastic sleeve 3 is made of a thermoplastic elastomer, which is also called elastomer or synthetic rubber, has the excellent performances of high elasticity, ageing resistance and oil resistance of the traditional crosslinked vulcanized rubber, has the characteristics of convenience in processing and wide processing mode of common plastics, has very outstanding advantages, has good impact resistance and fatigue resistance, has high impact strength and good low-temperature flexibility, keeps good performance when the temperature rises, and is easy to process and economical.
Further optimizing the technical scheme, waterproof cushion 4 is rubber pad or silica gel cushion, and the rubber pad is economical and practical, and silica gel cushion environmental protection.
Further optimizing the technical scheme, the bent pipe 21 is a 90-degree bent pipe, and is easy to process.
In practical implementation, the stainless steel waterproof elbow 2 is fixed according to design requirements, so that a water inlet of the comprehensive distribution box is conveniently provided, the male nut 232 is screwed, the male nut 232 is sleeved on the incoming cable, the male nut 232 is screwed, the outgoing cable is fixed on the outgoing port through the stainless steel waterproof elbow 2 by the same method, and finally the incoming port and the outgoing port are plugged from the inner side of the comprehensive distribution box by using an epoxy resin plate with the thickness not smaller than 2mm, so that the stainless steel waterproof elbow can be put into use.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the specific embodiments of the present invention without departing from the spirit and scope of the present invention, and any modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.
Claims (1)
1. The utility model provides a public intelligent low pressure comprehensive distribution box of changing platform, includes box body, its characterized in that: the stainless steel waterproof box comprises a box body, and is characterized in that a wire inlet is arranged on one side of the box body, a wire outlet is arranged on the other side of the box body, matched stainless steel waterproof elbows are arranged on the wire inlet and the wire outlet, one end of each stainless steel waterproof elbow is tightly connected to the outer side wall of the box body and is respectively fixed on the wire inlet and the wire outlet, the other end of each stainless steel waterproof elbow is bent to the lower end of the box body, an elastic sleeve is sleeved in each stainless steel waterproof elbow, and two ends of each elastic sleeve are limited at two ends of each stainless steel waterproof elbow;
the stainless steel waterproof elbow comprises an elbow pipe, a lock washer and a lock nut set, wherein an integrally formed single limit ring is arranged at one end, close to the box body, of the elbow pipe, an external thread is arranged at the part, located at the outer side of the single limit ring, of the elbow pipe, the lock washer is close to the single limit ring and sleeved on the external thread, a waterproof rubber pad is arranged between the single limit ring and the lock washer, an integrally formed double limit ring is arranged at one end, far away from the box body, of the elbow pipe, the double limit rings are arranged at a certain distance apart, an external thread is arranged between the double limit rings, the lock nut set consists of a female nut and a male nut, one end of the female nut is limited at the other end, sleeved on the outer side of the male nut, the other end, located at the inner side of the female nut, of the hexagonal head is flush with the outer side of the male nut, a first waterproof rubber pad is arranged between the female nut and the double limit ring, and a stainless steel support washer and a second waterproof rubber pad are sequentially arranged between the outer end of the elastic sleeve and the inner end of the male nut;
the side wall of the elastic sleeve is provided with a strip-shaped opening, the strip-shaped opening penetrates through the space between two ends of the elastic sleeve, the outer diameter of the elastic sleeve is smaller than the inner diameter of the bent pipe, two ends of the elastic sleeve are provided with 4 limiting plates which are integrally formed, the 4 limiting plates are uniformly and symmetrically distributed at the two ends of the elastic sleeve and are staggered with the strip-shaped opening, the elastic sleeve is sleeved in the bent pipe, and two ends of the elastic sleeve are limited at two ends of the stainless steel waterproof bent pipe through the 4 limiting plates; the elastic sleeve is made of thermoplastic elastomer; the bent pipe is a 90-degree bent pipe; the first waterproof rubber cushion and the second waterproof rubber cushion are rubber cushions or silica gel cushions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710562532.8A CN107171211B (en) | 2017-07-11 | 2017-07-11 | Intelligent low-voltage comprehensive distribution box body of public transformer station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710562532.8A CN107171211B (en) | 2017-07-11 | 2017-07-11 | Intelligent low-voltage comprehensive distribution box body of public transformer station |
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| Publication Number | Publication Date |
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| CN107171211A CN107171211A (en) | 2017-09-15 |
| CN107171211B true CN107171211B (en) | 2023-05-23 |
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| CN201710562532.8A Active CN107171211B (en) | 2017-07-11 | 2017-07-11 | Intelligent low-voltage comprehensive distribution box body of public transformer station |
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| CN110120635A (en) * | 2018-02-07 | 2019-08-13 | 五冶集团上海有限公司 | One kind being used for construction site water proof and dust proof distribution box |
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Effective date of registration: 20230414 Address after: 244000 No. 91 Changjiang West Road, Tongguan District, Tongling City, Anhui Province Applicant after: STATE GRID ANHUI ELECTRIC POWER CO., LTD. TONGLING POWER SUPPLY Co. Address before: 461000 South Section of Yan'an Road, Economic Development Zone, Xuchang City, Henan Province Applicant before: XUCHANG YIYUAN ELECTRIC Co.,Ltd. |
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