CN114172110B - Airtight high-voltage cable branch box - Google Patents
Airtight high-voltage cable branch box Download PDFInfo
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- CN114172110B CN114172110B CN202111348313.2A CN202111348313A CN114172110B CN 114172110 B CN114172110 B CN 114172110B CN 202111348313 A CN202111348313 A CN 202111348313A CN 114172110 B CN114172110 B CN 114172110B
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- turning plate
- sealing
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- 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
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
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- 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
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/16—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes structurally associated with support for line-connecting terminals within the box
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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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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention provides an airtight high-voltage cable branch box, which comprises: the column-shaped box body is provided with an annular partition wall at the inner side, and an annular partition layer is arranged between the outer side wall of the column-shaped box body and the annular partition wall; and the cable sealing bin is arranged on the inner side of the annular partition wall. The cable sealing bin is formed by the cylindrical box body with the circular cylinder structure, the hemispherical sealing shell is provided with the front opening which can be used for opening the cable sealing bin for operation and maintenance, the hemispherical turning plate can be used for closing or opening the front opening through rotation, meanwhile, the hemispherical transparent shell is positioned on the inner side of the hemispherical turning plate, the front opening can be still closed after the hemispherical turning plate is rotated and opened, the inside of the cable sealing bin can be conveniently observed through the transparent hemispherical transparent shell, if short circuit occurs in the inside or electric arc occurs, the inside of the cable sealing bin can be timely observed and removed, meanwhile, the hemispherical sealing shell can be integrally rotated, so that the position of the front opening can be adjusted for multidirectional opening, and the use flexibility and the safety are higher.
Description
Technical Field
One or more embodiments of the present disclosure relate to the field of electrical equipment, and in particular, to an airtight high-voltage cable branch box.
Background
The high-voltage cable branch box can replace a ring main unit in certain occasions, can be buried underground or immersed in water in necessary occasions, saves investment of equipment and cables, improves reliability of power supply, and is widely applicable to commercial centers, industrial parks and urban dense areas. The cable branch box can be divided into American cable branch box, european cable branch box and cable branch box with switch according to the different structural forms and cable connector types.
The applicant finds that the existing high-voltage cable branch box is generally of a bidirectional opening structure, when an internal cable is subjected to joint operation, a corresponding cover plate or a protective door is required to be opened generally, but the existing high-voltage cable branch box is generally only provided with a layer of cover plate or protective door structure, the overall tightness and the protective property are poor, and when the existing high-voltage cable branch box is opened, the internal situation cannot be observed, and if the existing high-voltage cable branch box is opened when a short circuit occurs in the internal part or an electric arc occurs, operators are easily injured, and the overall safety is low.
Disclosure of Invention
In view of this, an objective of one or more embodiments of the present disclosure is to provide an airtight high-voltage cable branch box, so as to solve the problems that the existing high-voltage cable branch box is usually only provided with a cover plate or a protective door structure, the overall sealing performance and the protective performance are poor, and when the opening operation is performed, the internal situation cannot be observed, and if the opening operation is performed when a short circuit or an arc occurs in the internal situation, an operator is easily injured, and the overall safety is low.
In view of the above, one or more embodiments of the present specification provide a gas-tight high-voltage cable branch box comprising:
the column-shaped box body is provided with an annular partition wall at the inner side, and an annular partition layer is arranged between the outer side wall of the column-shaped box body and the annular partition wall;
the cable sealing bin is arranged on the inner side of the annular partition wall, a vertical supporting wall is arranged in the middle of the cable sealing bin, a plurality of through-wall wiring sleeves are uniformly arranged at the top of the vertical supporting wall, and a top opening is formed in the top of the cable sealing bin;
the annular guide rail is arranged above the top opening, an annular rotating seat is arranged above the annular guide rail, a hemispherical sealing shell is arranged above the annular rotating seat, a front opening is formed in the front surface of the hemispherical sealing shell, an annular jogged groove is formed in the inner side of the annular rotating seat, and an edge sealing strip is arranged in the inner side of the top edge of the hemispherical sealing shell;
the hemispherical turning plate is arranged on the inner side of the hemispherical sealing shell, connecting rotating shafts are arranged on the left side and the right side of the hemispherical turning plate, a center limiting groove is formed in the center of the inner side surface of the hemispherical turning plate, and an operation handle is arranged on the outer side of the bottom edge of the hemispherical turning plate;
the hemispherical transparent shell is arranged on the inner side of the hemispherical turning plate, a center limiting flange is arranged at the center of the outer side surface of the hemispherical transparent shell, and an arc-shaped sealing strip is arranged at the top edge of the hemispherical transparent shell;
the hemispherical turning plate is rotationally connected with the hemispherical sealing shell through the connecting rotating shaft;
the bottom of the hemispherical transparent shell is embedded and arranged at the inner side of the annular embedded groove, the hemispherical transparent shell is rotationally connected with the annular rotary seat through the annular embedded groove, and the hemispherical transparent shell is made of transparent materials;
the semi-sphere transparent shell with the semi-sphere turns over the size mutually supporting between the board, the arc sealing strip the lateral surface with the semi-sphere turns over laminating each other between the medial surface of board, center limit flange with center spacing groove gomphosis sliding connection, center limit flange with the size mutually supporting between the center spacing groove.
In some alternative embodiments, the hemispherical sealing shell is rotatably connected with the annular guide rail through the annular rotating seat, the vertical center line of the hemispherical sealing shell and the vertical center line of the annular rotating seat are positioned on the same straight line, and the vertical center line of the annular rotating seat and the vertical center line of the column-shaped box body are positioned on the same straight line.
In some alternative embodiments, the front opening and the hemispherical turning plate are matched in size, and the inner side surface of the edge sealing strip and the outer side surface of the hemispherical turning plate are mutually fit.
In some optional embodiments, a plurality of air inlet electromagnetic valves are arranged at the top and the bottom of the outer side wall of the column type box body, and the air inlet electromagnetic valves are uniformly arranged in a circumferential shape around the outer side of the vertical center line of the column type box body.
In some alternative embodiments, the top and the bottom of the annular partition wall are provided with a plurality of interval electromagnetic valves, and the interval electromagnetic valves are uniformly arranged in a circumferential shape around the outer side of the vertical center line of the column type box body.
In some alternative embodiments, the inner side of the annular interval interlayer is provided with an annular piston in a jogged mode, and the annular piston and the annular interval interlayer are matched with each other in size.
In some alternative embodiments, a connecting screw sleeve is arranged in the middle of the annular piston, a lifting screw rod is arranged on the inner side of the connecting screw sleeve, and a lifting motor is arranged at the bottom end of the lifting screw rod.
From the above, it can be seen that, the airtight high-voltage cable branch box that this specification provided by one or more embodiments, the column type box through circular cylinder type structure constitutes cable seal storehouse, be provided with a plurality of wall wire bushings that wear on the vertical support wall in the cable seal storehouse and be used for connecting fixed high-voltage cable, and cable seal storehouse wholly keeps sealing through bilayer structure's annular lateral wall and the hemisphere seal shell at top, hemisphere turns over board and hemisphere transparent shell, guarantee the security of inside cable, and be provided with the front opening on the hemisphere seal shell and can be used for opening cable seal storehouse in order to operate and maintain, and hemisphere turns over board can be through the rotation closure or open the front opening, hemisphere transparent shell is located hemisphere and turns over the inboard simultaneously, can still seal the front opening after hemisphere turns over board rotation and opens, be convenient for observe cable seal storehouse inside through transparent hemisphere transparent shell, if inside short circuit or produce electric arc and can observe in time get rid of, improve its overall security, hemisphere seal shell wholly can rotate simultaneously, so as to adjust the position of front opening, be convenient for carry out multidirectional opening, the use flexibility is higher.
Drawings
In order to more clearly illustrate one or more embodiments of the present specification or the technical solutions in the related art, the drawings that are required for the description of the embodiments or the related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of one or more embodiments of the present specification, and other drawings may be obtained from these drawings without inventive effort to those of ordinary skill in the art.
FIG. 1 is a schematic diagram of one or more embodiments of the present disclosure;
FIG. 2 is a schematic diagram of a front structure of one or more embodiments of the present disclosure;
fig. 3 is a schematic diagram illustrating a hemispherical turning plate in an open state according to one or more embodiments of the present disclosure;
FIG. 4 is a schematic longitudinal cross-sectional view of one or more embodiments of the present disclosure;
FIG. 5 is a schematic diagram of a partially exploded construction of one or more embodiments of the present disclosure;
FIG. 6 is a schematic view of the internal structure of a cable seal cartridge according to one or more embodiments of the present disclosure;
FIG. 7 is a schematic structural view of a hemispherical seal housing in accordance with one or more embodiments of the present disclosure;
fig. 8 is a schematic structural view of a hemispherical flap in accordance with one or more embodiments of the present disclosure.
Wherein: the intelligent power supply comprises a 1-column type box body, a 101 air inlet electromagnetic valve, a 102 annular partition wall, a 103 interval electromagnetic valve, a 2 cable sealing bin, a 201 vertical supporting wall, a 202 through-wall wiring sleeve, a 203 top opening, a 3 annular guide rail, a 301 annular rotating seat, a 302 hemispherical sealing shell, a 303 front opening, a 304 annular embedded groove, a 305 edge sealing strip, a 4 hemispherical turning plate, a 401 connecting rotating shaft, a 402 central limiting groove, a 403 operating handle, a 5 hemispherical transparent shell, a 501 central limiting flange, a 502 arc sealing strip, a 6 annular interval interlayer, a 601 annular piston, a 602 connecting screw sleeve, a 603 lifting screw and a 604 lifting motor.
Detailed Description
For purposes of clarity, technical solutions, and advantages of one or more embodiments of the present specification, the following further details one or more embodiments of the present specification in connection with a particular embodiment.
It should be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should be given the ordinary meaning as understood by one of ordinary skill in the art to which one or more embodiments of the present specification belong. The use of the terms "first," "second," and the like in one or more embodiments of the present description does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
One or more embodiments of the present specification provide an airtight high voltage cable breakout box comprising:
the column-shaped box body 1, the inner side of the column-shaped box body 1 is provided with an annular partition wall 102, and an annular partition interlayer 6 is arranged between the outer side wall of the column-shaped box body 1 and the annular partition wall 102;
the cable sealing bin 2 is arranged on the inner side of the annular partition wall 102, a vertical supporting wall 201 is arranged in the middle of the cable sealing bin 2, a plurality of through-wall wiring sleeves 202 are uniformly distributed on the top of the vertical supporting wall 201, and a top opening 203 is formed in the top of the cable sealing bin 2;
the annular guide rail 3 is arranged above the top opening 203, an annular rotating seat 301 is arranged above the annular guide rail 3, a hemispherical sealing shell 302 is arranged above the annular rotating seat 301, a front opening 303 is arranged on the front surface of the hemispherical sealing shell 302, an annular embedded groove 304 is arranged on the inner side of the annular rotating seat 301, and an edge sealing strip 305 is arranged on the inner side of the top edge of the hemispherical sealing shell 302;
the hemispherical turning plate 4 is arranged on the inner side of the hemispherical sealing shell 302, the left side and the right side of the hemispherical turning plate 4 are respectively provided with a connecting rotating shaft 401, the center of the inner side surface of the hemispherical turning plate 4 is provided with a center limiting groove 402, and the outer side of the bottom edge of the hemispherical turning plate 4 is provided with an operating handle 403;
the hemispherical transparent shell 5 is arranged on the inner side of the hemispherical turning plate 4, a center limiting flange 501 is arranged at the center of the outer side surface of the hemispherical transparent shell 5, and an arc-shaped sealing strip 502 is arranged at the top edge of the hemispherical transparent shell 5.
Referring to fig. 1 to 8, as an embodiment of the present invention, an airtight type high voltage cable branch box includes: the column-shaped box body 1, the inner side of the column-shaped box body 1 is provided with an annular partition wall 102, and an annular partition interlayer 6 is arranged between the outer side wall of the column-shaped box body 1 and the annular partition wall 102; the cable sealing bin 2 is arranged on the inner side of the annular partition wall 102, a vertical supporting wall 201 is arranged in the middle of the cable sealing bin 2, a plurality of through-wall wiring sleeves 202 are uniformly distributed on the top of the vertical supporting wall 201, and a top opening 203 is formed in the top of the cable sealing bin 2; the annular guide rail 3 is arranged above the top opening 203, an annular rotating seat 301 is arranged above the annular guide rail 3, a hemispherical sealing shell 302 is arranged above the annular rotating seat 301, a front opening 303 is arranged on the front surface of the hemispherical sealing shell 302, an annular embedded groove 304 is arranged on the inner side of the annular rotating seat 301, and an edge sealing strip 305 is arranged on the inner side of the top edge of the hemispherical sealing shell 302; the hemispherical turning plate 4 is arranged on the inner side of the hemispherical sealing shell 302, the left side and the right side of the hemispherical turning plate 4 are respectively provided with a connecting rotating shaft 401, the center of the inner side surface of the hemispherical turning plate 4 is provided with a center limiting groove 402, and the outer side of the bottom edge of the hemispherical turning plate 4 is provided with an operating handle 403; the hemispherical transparent shell 5 is arranged on the inner side of the hemispherical turning plate 4, a center limiting flange 501 is arranged at the center of the outer side surface of the hemispherical transparent shell 5, and an arc-shaped sealing strip 502 is arranged at the top edge of the hemispherical transparent shell 5.
Referring to fig. 1 to 8, alternatively, the cable branching box forms a closed shell structure through a cylindrical box body 1 with a circular cylinder shape, the annular side wall of the cylindrical box body 1 is a double-layer structure, the outer box body wall and the inner annular partition wall 102 form a sandwich structure, the annular partition layer 6 is arranged before, the overall insulation of the box body can be improved, the inner part of the annular partition wall 102 is a cable sealing bin 2, a plurality of through-wall wire bushings 202 are arranged on a vertical supporting wall 201 in the cable sealing bin 2 for connecting and fixing high-voltage cables, a top opening 203 is arranged on the top of the cable sealing bin 2, the top opening 203 is closed through a hemispherical sealing shell 302, a front opening 303 is arranged on the hemispherical sealing shell 302 for opening the cable sealing bin 2 for operation and maintenance, a hemispherical turning plate 4 is arranged in the front opening 303, the hemispherical turning plate 4 is rotationally connected with the hemispherical sealing shell 302 through the connecting rotating shaft 401, the sizes of the front opening 303 and the hemispherical turning plate 4 are mutually matched, the inner side face of the edge sealing strip 305 and the outer side face of the hemispherical turning plate 4 are mutually matched, so the hemispherical turning plate 4 can seal the front opening 303 to keep the tightness of the front opening 303 and the cable sealing bin 2, the hemispherical turning plate 4 can also conveniently seal or open the front opening 303 through rotation to perform maintenance operation, two sides of the through-wall wiring sleeve 202 arranged on the vertical supporting wall 201 can be connected with cables, the hemispherical sealing shell 302 is rotationally connected with the annular guide rail 3 through the annular rotating seat 301, the vertical center line of the hemispherical sealing shell 302 and the vertical center line of the annular rotating seat 301 are positioned on the same straight line, the vertical center line of the annular rotating seat 301 and the vertical center line of the cylindrical box 1 are positioned on the same straight line, therefore, the hemispherical sealing shell 302 can rotate to adjust the position of the front opening 303, so that the opening operation of different positions in the cable sealing bin 2 is convenient, and the use is more flexible and convenient.
Referring to fig. 1 to 8, optionally, the cable branch box seals the top opening 203 through the hemispherical sealing shell 302, the hemispherical turning plate 4 disposed on the hemispherical sealing shell 302 may be sealed or opened by rotating to perform maintenance operation, the hemispherical turning plate 4 is further disposed inside with the hemispherical transparent shell 5, the hemispherical transparent shell 5 is made of transparent material, and dimensions of the hemispherical transparent shell 5 and the hemispherical turning plate 4 are mutually matched, and an outer side surface of the arc sealing strip 502 is mutually matched with an inner side surface of the hemispherical turning plate 4, so that after the hemispherical turning plate 4 is opened by rotating, the hemispherical transparent shell 5 can still seal the front opening 303, so that the interior of the cable sealing bin 2 is conveniently observed through the transparent hemispherical transparent shell 5, if a short circuit occurs or an arc is generated in the interior, the interior can be observed and removed in time, the overall safety is improved, and the hemispherical transparent shell 5 is rotatably connected with the annular rotary seat 301 through the annular chimeric groove 304 to facilitate rotating the hemispherical transparent shell 5 to open the front opening 303, and simultaneously the central limiting flange 501 is slidably connected with the central limiting groove 402, and the central limiting flange 501 is mutually matched with the central limiting groove 402, so that the hemispherical transparent shell 302 is conveniently rotated to drive the hemispherical sealing bin 2 to rotate synchronously, and the hemispherical opening can rotate in the front position.
Referring to fig. 1 to 8, alternatively, the cable branching box forms a closed shell structure through a cylindrical box 1 of a circular cylinder shape, the annular side wall of the cylindrical box 1 is of a double-layer structure, the outer box wall and the inner annular partition wall 102 form a sandwich structure, an annular partition layer 6 is arranged before, the overall insulation of the box can be improved, the top and the bottom of the outer side wall of the cylindrical box 1 are respectively provided with a plurality of air inlet electromagnetic valves 101, the air inlet electromagnetic valves 101 are uniformly arranged in a circumferential shape around the outer side of the vertical center line of the cylindrical box 1, the top and the bottom of the annular partition wall 102 are respectively provided with a plurality of partition electromagnetic valves 103, the partition electromagnetic valves 103 are uniformly arranged in a circumferential shape around the outer side of the vertical center line of the cylindrical box 1, the inner side of the annular partition layer 6 is embedded with an annular piston 601, the annular piston 601 is mutually matched with the annular partition layer 6 in size, the middle of the annular piston 601 is provided with a connecting screw sleeve 602, the inner side of the connecting screw sleeve 602 is provided with a lifting screw 603, the bottom end of the lifting screw 603 is provided with a lifting motor 604, so that the annular piston 601 can be driven to move up and down in the annular interval interlayer 6 through the rotation of the lifting screw 603, simultaneously, the air suction and exhaust structure is formed by controlling the on-off of the air inlet electromagnetic valve 101 and the interval electromagnetic valve 103 arranged at the upper side and the lower side, external air can be pumped into the annular interval interlayer 6, then the air entering the annular interval interlayer 6 is pressed into the cable seal bin 2, then the air entering the annular interval interlayer 6 is pumped into the annular interval interlayer 6 and then pressed out, thereby the air inside the cable seal bin 2 can be subjected to circulation exchange so as to facilitate the heat dissipation inside the cable seal bin 2, and the volume of the cable sealing bin 2 is approximately the same as the volume of the annular interval interlayer 6, the annular piston 601 can be used for integrally replacing air in the cable sealing bin 2 once every time, the heat dissipation efficiency is higher, the air pipe is conveniently connected through the air inlet electromagnetic valve 101, insulating gas and the like are conveyed, the air in the cable sealing bin 2 can be pumped out, the air in the cable sealing bin 2 is enabled to form a hollow environment, the insulating property of the cable sealing bin is conveniently adjusted according to needs, the cable sealing bin is more flexible and convenient to use, meanwhile, the annular interval interlayer 6 is used as a transit space, so that external air is prevented from directly entering the cable sealing bin 2, moisture absorption materials such as activated carbon and the like can be added into the annular interval interlayer 6, dehumidification and dust removal treatment can be carried out on the air, and the safety of air heat dissipation can be improved.
When in use, firstly, the hemispherical sealing shell 302 rotates through the annular rotating seat 301 to adjust the position of the front opening 303 of the joint, after the movement adjustment is completed, the hemispherical turning plate 4 can be turned upwards and opened along the connecting rotating shaft 401 through the operating handle 403, at the moment, the hemispherical turning plate 4 is opened, the front opening 303 is kept closed by the hemispherical transparent shell 5 on the inner side, the inside of the cable sealing bin 2 can be observed through the transparent hemispherical transparent shell 5, when the hemispherical turning plate 4 is completely opened, the central limiting groove 402 and the central limiting flange 501 are mutually separated, the hemispherical transparent shell 5 can be rotated to the side to open the front opening 303, the inside of the cable sealing bin 2 is operated and maintained through the front opening 303, the vertical supporting wall 201 in the cable sealing bin 2 is provided with a plurality of through-wall wiring sleeves 202 for connecting and fixing high-voltage cables, and when the cable branch box works, the lifting motor 604 drives the annular piston 601 to reciprocate up and down through the lifting screw 603, and when the annular piston 601 moves downwards, the air inlet electromagnetic valve 101 at the top and the air inlet electromagnetic valve 101 at the bottom are both opened, so that external air can be pumped into the upper side of the annular piston 601 in the annular space interlayer 6 by the air inlet electromagnetic valve 101 at the top, and air on the lower side of the annular piston 601 in the annular space interlayer 6 is extruded out of the annular space interlayer 6 by the air inlet electromagnetic valve 101 at the bottom, when the annular piston 601 moves to the bottom to move upwards, the air inlet electromagnetic valve 101 at the top and the air inlet electromagnetic valve 101 at the bottom are both closed, and the air inlet electromagnetic valve 103 at the top and the air inlet electromagnetic valve 103 at the bottom are both opened, so that the annular piston 601 can press air in the annular space interlayer 6 into the cable sealing bin 2 through the air inlet electromagnetic valve 103 at the top, while the original air in the cable sealing bin 2 is pumped into the lower side of the annular piston 601 in the annular interval interlayer 6 through the interval electromagnetic valve 103 at the bottom, so that the continuous replacement of the air in the cable sealing bin 2 is completed, and the heat dissipation is carried out on the air.
According to the airtight high-voltage cable branch box provided by the invention, the cable sealing bin 2 is formed by the cylindrical box body 1 with the circular cylinder structure, the vertical supporting wall 201 in the cable sealing bin 2 is provided with the plurality of through-wall wiring sleeves 202 for connecting and fixing the high-voltage cable, the whole cable sealing bin 2 is kept closed by the hemispherical sealing shell 302 with the annular side wall and the top of the double-layer structure, the hemispherical turning plate 4 and the hemispherical transparent shell 5, the safety of an internal cable is ensured, the hemispherical sealing shell 302 is provided with the front opening 303 for opening the cable sealing bin 2 for operation and maintenance, the hemispherical turning plate 4 can be rotated to close or open the front opening 303, meanwhile, the hemispherical transparent shell 5 is positioned at the inner side of the hemispherical turning plate 4, the front opening 303 can be still closed after the hemispherical turning plate 4 is rotated to be opened, the inside of the cable sealing bin 2 is conveniently observed through the transparent hemispherical transparent shell 5, if an arc occurs, the whole safety is improved, the whole hemispherical sealing shell 302 can be rotated to adjust the position of the front opening 303, the operation and maintenance in multiple directions are convenient, and the operation and the practicability is higher.
Those of ordinary skill in the art will appreciate that: the above discussion of any embodiment is intended to be exemplary only and is not intended to suggest that the scope of the embodiment or embodiments of the disclosure (including the claims) is limited to these examples; combinations of features in the above embodiments or in different embodiments may also be made under the idea of one or more embodiments of the present description, the steps may be implemented in any order, and many other variations in different aspects of one or more embodiments of the present description as described above exist, which are not provided in detail for conciseness.
While one or more embodiments of the present disclosure have been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description.
The present disclosure is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the one or more embodiments of the present description, are intended to be included within the scope of the one or more embodiments of the present description.
Claims (7)
1. An airtight high voltage cable branch box, comprising:
the column-shaped box body is provided with an annular partition wall at the inner side, and an annular partition layer is arranged between the outer side wall of the column-shaped box body and the annular partition wall;
the cable sealing bin is arranged on the inner side of the annular partition wall, a vertical supporting wall is arranged in the middle of the cable sealing bin, a plurality of through-wall wiring sleeves are uniformly arranged at the top of the vertical supporting wall, and a top opening is formed in the top of the cable sealing bin;
the annular guide rail is arranged above the top opening, an annular rotating seat is arranged above the annular guide rail, a hemispherical sealing shell is arranged above the annular rotating seat, a front opening is formed in the front surface of the hemispherical sealing shell, an annular jogged groove is formed in the inner side of the annular rotating seat, and an edge sealing strip is arranged in the inner side of the top edge of the hemispherical sealing shell;
the hemispherical turning plate is arranged on the inner side of the hemispherical sealing shell, connecting rotating shafts are arranged on the left side and the right side of the hemispherical turning plate, a center limiting groove is formed in the center of the inner side surface of the hemispherical turning plate, and an operation handle is arranged on the outer side of the bottom edge of the hemispherical turning plate;
the hemispherical transparent shell is arranged on the inner side of the hemispherical turning plate, a center limiting flange is arranged at the center of the outer side surface of the hemispherical transparent shell, and an arc-shaped sealing strip is arranged at the top edge of the hemispherical transparent shell;
the hemispherical turning plate is rotationally connected with the hemispherical sealing shell through the connecting rotating shaft;
the bottom of the hemispherical transparent shell is embedded and arranged at the inner side of the annular embedded groove, the hemispherical transparent shell is rotationally connected with the annular rotary seat through the annular embedded groove, and the hemispherical transparent shell is made of transparent materials;
the semi-sphere transparent shell with the semi-sphere turns over the size mutually supporting between the board, the arc sealing strip the lateral surface with the semi-sphere turns over laminating each other between the medial surface of board, center limit flange with center spacing groove gomphosis sliding connection, center limit flange with the size mutually supporting between the center spacing groove.
2. The airtight high-voltage cable branch box according to claim 1, wherein the hemispherical sealing shell is rotatably connected with the annular guide rail through the annular rotating seat, a vertical center line of the hemispherical sealing shell and a vertical center line of the annular rotating seat are positioned on the same straight line, and a vertical center line of the annular rotating seat and a vertical center line of the column box body are positioned on the same straight line.
3. The airtight high-voltage cable branch box according to claim 1, wherein the front opening and the hemispherical turning plate are matched in size, and the inner side surface of the edge sealing strip and the outer side surface of the hemispherical turning plate are mutually attached.
4. The airtight type high-voltage cable branch box according to claim 1, wherein a plurality of air inlet electromagnetic valves are arranged at the top and the bottom of the outer side wall of the column type box body, and the air inlet electromagnetic valves are uniformly arranged in a circumferential shape around the outer side of the vertical center line of the column type box body.
5. The airtight high-voltage cable branch box according to claim 1, wherein a plurality of interval solenoid valves are provided at the top and bottom of the annular partition wall, and the interval solenoid valves are uniformly arranged circumferentially around the outside of the vertical center line of the column type box.
6. The airtight high-voltage cable branch box according to claim 1, wherein an annular piston is fitted inside the annular spacer, and the annular piston and the annular spacer are mutually matched in size.
7. The airtight high-voltage cable branch box according to claim 6, wherein a connecting screw sleeve is arranged in the middle of the annular piston, a lifting screw rod is arranged on the inner side of the connecting screw sleeve, and a lifting motor is arranged at the bottom end of the lifting screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348313.2A CN114172110B (en) | 2021-11-15 | 2021-11-15 | Airtight high-voltage cable branch box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111348313.2A CN114172110B (en) | 2021-11-15 | 2021-11-15 | Airtight high-voltage cable branch box |
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| Publication Number | Publication Date |
|---|---|
| CN114172110A CN114172110A (en) | 2022-03-11 |
| CN114172110B true CN114172110B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111348313.2A Active CN114172110B (en) | 2021-11-15 | 2021-11-15 | Airtight high-voltage cable branch box |
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| CN208352946U (en) * | 2018-05-01 | 2019-01-08 | 深圳供电局有限公司 | A kind of cylindrical cable grounding box |
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