CN112290504A - Sealing structure of buried cable branch box - Google Patents
Sealing structure of buried cable branch box Download PDFInfo
- Publication number
- CN112290504A CN112290504A CN202011019336.4A CN202011019336A CN112290504A CN 112290504 A CN112290504 A CN 112290504A CN 202011019336 A CN202011019336 A CN 202011019336A CN 112290504 A CN112290504 A CN 112290504A
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- China
- Prior art keywords
- branch box
- cable branch
- sealing
- rubber strip
- rubber
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention relates to the technical field of branch box bodies and discloses a sealing structure of a buried cable branch box, which comprises the buried cable branch box, and a sealing and positioning connecting plate, a rubber sealing rubber strip and an embedded positioning rubber strip which are arranged on the buried cable branch box, wherein the front surface of the buried cable branch box is provided with an embedded groove and square grooves, and the square grooves are distributed at four corners of the embedded groove. This bury seal structure of formula cable branch box, cooperation through utilizing between joint support locating plate and the fastening bolt is used, can conveniently connect the location connecting plate of sealing and fix on burying formula cable branch box under ground for this sealing member is connected more stably, adopts gas eduction tube and sealing nut's setting simultaneously, can conveniently carry out the pressure release to burying between formula cable branch box and the rubber sealing rubber strip under ground, conveniently opens the chamber door and overhauls, has improved the convenience of its maintenance and the stability between the connecting elements.
Description
Technical Field
The invention relates to the technical field of branch box bodies, in particular to a sealing structure of a buried cable branch box.
Background
With the rapid development of the modernization construction industry of the power industry, the transformation of a power grid is started in all directions. When the underground main line cable needs to realize multi-loop branch power distribution at a certain distance, the method which is economical, convenient and safe is adopted by taking the cable branch box as important corollary equipment for power distribution, and the buried cable branch box realizes the interconnection and butt joint of power cables in a flexible, economical and reliable mode, and has a simple, convenient and fast connection combination form, so that the buried cable branch box replaces a cable intermediate joint in more and more occasions. The buried cable branch box is installed in cable trenches on two sides of a railway line, investment of equipment and engineering can be saved, full insulation, full sealing and full shielding are achieved in the whole distribution network, fault rate of the line is greatly reduced, reliability of power supply is improved, the buried cable branch box is an important component of power equipment, the sealing structure of the branch box is an important component of the buried cable branch box, and therefore research on the buried cable branch box is necessary for guaranteeing better use of the buried cable branch box.
The sealing structure of the existing underground cable branch box mainly directly adopts a sealing strip to seal between the cable branch box and a box door of the cable branch box, and by adopting the mode, external water drops easily permeate into the cable branch box to influence the work of components inside the cable branch box.
Disclosure of Invention
The invention provides a sealing structure of a buried cable branch box, which has the advantages of stable structure and good sealing effect and solves the problems in the prior art.
The invention provides the following technical scheme: the sealing structure comprises the buried cable branch box, a sealing and positioning connecting plate, a rubber sealing rubber strip and an embedded positioning rubber strip, wherein the sealing and positioning connecting plate, the rubber sealing rubber strip and the embedded positioning rubber strip are arranged on the buried cable branch box, the embedded groove and the square groove are formed in the front surface of the buried cable branch box and distributed in four corners of the embedded groove, the sealing and positioning connecting plate which is located on the front surface of the embedded groove is arranged on the buried cable branch box, the front surface and the back surface of the sealing and positioning connecting plate are fixedly connected with the rubber sealing rubber strip and the embedded positioning rubber strip respectively, a frame-shaped inner groove is formed in the rubber sealing rubber strip, a vacuum air pump is fixedly arranged on one side of the top of the buried cable branch box, the output end and the input end of the vacuum air pump are fixedly connected with a gas output guide connection pipe respectively, and one end of the gas output guide connection pipe penetrates through the buried cable branch box The rubber sealing rubber strip is fixedly connected with a gas outlet pipe which is communicated with the inside of the frame-shaped inner groove, one end of the gas outlet pipe extends to the outside of the buried cable branch box, and a sealing nut is sleeved on the gas outlet pipe in a threaded manner.
Preferably, the fixed cover in front of sealed location connecting plate is equipped with the extrusion butt joint sucking disc that is located rubber joint strip periphery, and extrudees even distribution of butt joint sucking disc on sealed location connecting plate, the fixedly connected with joint support locating plate all around of sealed location connecting plate, and the inside screw thread cover of joint support locating plate is equipped with fastening bolt.
Preferably, the size of the connecting and supporting positioning plate is matched with that of the square groove, and a fastening bolt inside the connecting and supporting positioning plate is in threaded connection with the inside of the buried cable branch box.
Preferably, the inner part of the embedded groove is fixedly connected with uniformly distributed raised particles, and the inner part of the embedded groove is connected with the outer part of the embedded positioning rubber strip in an extruding and nesting manner.
Preferably, the cross-section of the embedded positioning rubber strip is T-shaped, and the embedded positioning rubber strip is provided with edges and corners.
Preferably, the cross section of the rubber sealing rubber strip is concave.
Preferably, when the underground cable branch box closes the box door, the rubber sealing rubber strip is firstly contacted with the box door on the underground cable branch box, and the box door on the underground cable branch box is contacted with the rubber sealing rubber strip and then contacted with the extrusion butt-joint sucker.
The invention has the following beneficial effects:
1. the sealing structure of the buried cable branch box adopts the mutual contact between the rubber sealing rubber strip and the upper box door of the buried cable branch box, meanwhile, the rubber sealing rubber strip is sucked by adopting the extrusion butt joint sucker, then the rubber sealing rubber strip after being closed and sucked is internally pumped by adopting the vacuum air pump, and the gas in the frame-shaped inner groove is discharged, so that negative pressure is formed between the rubber sealing rubber strip and the upper box door of the buried cable branch box, the suction between the rubber sealing rubber strip and the upper box door of the buried cable branch box is ensured to be more compact, the external water drops are prevented from permeating through the gap between the rubber sealing rubber strip and the upper box door of the buried cable branch box, meanwhile, the mutual matching between the embedded groove on the buried cable branch box and the embedded positioning rubber strip is utilized, the internal connection of the sealing positioning connecting plate and the buried cable branch box can be more stable, and the internal contact with the outside of the buried cable branch box can be, the sealed effect is better, and the rubber joint strip and the cooperation of embedded location rubber strip on the sealed location connecting plate for it is inseparabler with the ground contact between burying formula cable branch box and the chamber door above that, has improved sealed effect, avoids the infiltration of external drop of water.
2. This bury seal structure of formula cable branch box, cooperation through utilizing between joint support locating plate and the fastening bolt is used, can conveniently connect the location connecting plate of sealing and fix on burying formula cable branch box under ground for this sealing member is connected more stably, adopts gas eduction tube and sealing nut's setting simultaneously, can conveniently carry out the pressure release to burying between formula cable branch box and the rubber sealing rubber strip under ground, conveniently opens the chamber door and overhauls, has improved the convenience of its maintenance and the stability between the connecting elements.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the internal structure of the buried cable branch box according to the present invention;
FIG. 3 is a schematic structural view of a rubber sealing strip according to the present invention;
fig. 4 is a schematic cross-sectional structure view of the sealing and positioning connecting plate of the invention.
In the figure: 1. a buried cable branch box; 101. embedding a groove; 102. a square groove; 2. sealing and positioning the connecting plate; 3. a rubber sealing strip; 301. a frame-shaped inner groove; 4. a positioning rubber strip is embedded; 5. connecting and supporting the positioning plate; 6. fastening a bolt; 7. a gas output guide pipe; 8. a vacuum pump; 9. a gas delivery pipe; 10. a sealing nut; 11. and (5) extruding and butting the suckers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a sealing structure of an underground cable branch box comprises an underground cable branch box 1, and a sealing and positioning connection plate 2, a rubber sealing rubber strip 3 and an embedded positioning rubber strip 4 which are arranged on the underground cable branch box 1, wherein the front surface of the underground cable branch box 1 is provided with an embedded groove 101 and a square groove 102, the square grooves 102 are distributed at four corners of the embedded groove 101, the underground cable branch box 1 is provided with a sealing and positioning connection plate 2 which is positioned at the front surface of the embedded groove 101, the front surface and the back surface of the sealing and positioning connection plate 2 are respectively and fixedly connected with the rubber sealing rubber strip 3 and the embedded positioning rubber strip 4, the rubber sealing rubber strip 3 is internally provided with a frame-shaped inner groove 301, one side of the top of the underground cable branch box 1 is fixedly provided with a vacuum air pump 8, the output end and the input end of the vacuum, one end of the gas output guiding pipe 7 penetrates through the buried cable branch box 1, extends to the inside of the rubber sealing rubber strip 3 and is communicated with the inside of the frame-shaped inner groove 301, one side of the rubber sealing rubber strip 3 is fixedly connected with a gas outlet pipe 9 communicated with the inside of the frame-shaped inner groove 301, one end of the gas outlet pipe 9 extends to the outside of the buried cable branch box 1 and is sleeved with a sealing nut 10 through threads, the rubber sealing rubber strip 3 is contacted with an upper box door of the buried cable branch box 1 mutually, meanwhile, an extrusion butt joint sucker 11 is adopted to suck the rubber sealing strip, then, a vacuum air pump 8 is adopted to suck the sealed and sucked rubber sealing rubber strip 3, the gas in the frame-shaped inner groove 301 is discharged, negative pressure is formed between the rubber sealing rubber strip 3 and the upper box door of the buried cable branch box 1, and then the suction between the rubber sealing rubber strip 3 and the upper box door of the buried cable branch box 1 is ensured to be more, avoided external drop of water to pass through the gap infiltration between the case door on rubber sealing rubber strip 3 and the formula of burying cable branch box 1, utilize simultaneously to bury formula cable branch box 1 and go up the mutually supporting between embedded recess 101 and the embedded location rubber strip 4, can be more stable with the internal connection of seal positioning connecting plate 2 and the formula of burying cable branch box 1, can avoid simultaneously burying 1 inside of formula cable branch box and external contact, sealed effect is better, rubber sealing rubber strip 3 and the embedded location rubber strip 4 cooperation on the seal positioning connecting plate 2, make it inseparabler with the contact between the formula of burying cable branch box 1 and the chamber door above that, sealed effect has been improved, avoid the infiltration of external drop of water.
Wherein the front surface of the sealing and positioning connecting plate 2 is fixedly sleeved with an extrusion butt joint sucker 11 positioned at the periphery of the rubber sealing rubber strip 3, the extrusion butt joint suckers 11 are uniformly distributed on the sealing and positioning connecting plate 2, the periphery of the sealing and positioning connecting plate 2 is fixedly connected with a connecting and supporting positioning plate 5, the inner thread of the connecting and supporting positioning plate 5 is sleeved with a fastening bolt 6, by utilizing the matching use between the connecting and supporting positioning plate 5 and the fastening bolt 6, the sealing and positioning connecting plate 2 can be conveniently connected and fixed on the buried cable branch box 1, so that the connection of the sealing element is more stable, adopt gaseous eduction tube 9 and sealing nut 10's setting simultaneously, can conveniently carry out the pressure release to burying between formula cable branch box 1 and the rubber sealing rubber strip 3, conveniently open the chamber door and overhaul, improved the convenience of its maintenance and the stability between the connecting elements.
Wherein, the mutual adaptation of size and square groove 102 of joint support locating plate 5, and the inside fastening bolt 6 of joint support locating plate 5 and the inside threaded connection of burying formula cable branch box 1, through the interact between square groove 102 and the joint support locating plate 5, can guarantee to install the stable front of burying formula cable branch box 1 with sealed location connecting plate 2 and rubber sealing rubber strip 3, guaranteed the stability between the structure.
Wherein, the inside fixedly connected with evenly distributed's of embedded groove 101 protruding granule, and the inside of embedded groove 101 and the outside extrusion nested connection of embedded location rubber strip 4, set up protruding granule in the inside of embedded groove 101, can increase the frictional force that embedded location rubber strip 4 is rather than the internally mounted, more stable between the structure, embedded location rubber strip 4 slightly is greater than embedded groove 101 simultaneously, has guaranteed its sealed effect of extrudeing the connection.
Wherein, the cross-section of embedded location rubber strip 4 is the T font, and is provided with the edges and corners on embedded location rubber strip 4, sets up the edges and corners on embedded location rubber strip 4 including to set it to the T font, can conveniently install, make the junction can contact inseparabler.
Wherein, rubber sealing rubber strip 3's cross-section is the character cut in bas-relief, can conveniently bleed to its inside, guarantees its sealed.
Wherein, when burying formula cable feeder pillar 1 and closing the chamber door, rubber sealing rubber strip 3 earlier with bury the chamber door contact on the formula cable feeder pillar 1, and bury the chamber door on the formula cable feeder pillar 1 and contact with extrusion butt joint sucking disc 11 contact with rubber sealing rubber strip 3 after again, bury formula cable feeder pillar 1's chamber door and can with rubber sealing rubber strip 3 and extrusion butt joint sucking disc 11 mutual contact, guaranteed the sealed effect of junction.
The working principle is that when in use, the embedded positioning rubber strip 4 on the sealing and positioning connecting plate 2 is butted with the embedded groove 101 on the buried cable branch box 1, so that the embedded positioning rubber strip 4 is embedded in the embedded groove 101, meanwhile, the connecting and supporting positioning plate 5 just falls into the square groove 102, the embedded positioning rubber strip is fixed by the fastening bolt 6, then the box door on the buried cable branch box 1 is closed, so that the rubber sealing rubber strip 3 is contacted with the box door, then the box door is extruded and closed, at the moment, the butt joint sucker 11 is extruded and attracted with the box door, when the box door is closed, the rubber sealing rubber strip 3 is firstly contacted with the box door, then the butt joint sucker 11 is extruded and contacted with the box door, namely, the rubber sealing rubber strip 3 is in front of the butt joint sucker 11, then, the vacuum air pump 8 is started, and the air in the frame-shaped inner groove 301 is pumped out by the gas output guide connection pipe 7, when the maintenance is required, the sealing nut 10 is screwed, so that air enters the frame-shaped inner groove 301 from the gas delivery pipe 9, and the maintenance is performed on the frame-shaped inner groove.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a bury seal structure of formula cable branch box, includes bury formula cable branch box (1) and set up sealed location connecting plate (2), rubber joint strip (3) and embedded location rubber strip (4) above that, its characterized in that: the buried cable branch box is characterized in that an embedded groove (101) and a square groove (102) are formed in the front face of the buried cable branch box (1), the square groove (102) is distributed in four corners of the embedded groove (101), a sealing and positioning connecting plate (2) located on the front face of the embedded groove (101) is arranged on the buried cable branch box (1), the front face and the back face of the sealing and positioning connecting plate (2) are fixedly connected with a rubber sealing rubber strip (3) and an embedded positioning rubber strip (4) respectively, a frame-shaped inner groove (301) is formed in the rubber sealing rubber strip (3), a vacuum air pump (8) is fixedly mounted on one side of the top of the buried cable branch box (1), the output end and the input end of the vacuum air pump (8) are fixedly connected with a gas output guide pipe (7) respectively, one end of the gas output guide pipe (7) penetrates through the buried cable branch box (1) and extends into the rubber sealing rubber strip (3) and is connected with 301) The inner parts of the rubber sealing rubber strips (3) are communicated with each other, one side of each rubber sealing rubber strip (3) is fixedly connected with a gas leading-out pipe (9) which is communicated with the inner part of the frame-shaped inner groove (301), one end of each gas leading-out pipe (9) extends to the outer part of the buried cable branch box (1), and a sealing nut (10) is sleeved on each screw thread.
2. A sealing structure of a buried cable branch box according to claim 1, wherein: the fixed cover in front of sealed location connecting plate (2) is equipped with extrusion butt joint sucking disc (11) that are located rubber joint strip (3) periphery, and extrudees even distribution of butt joint sucking disc (11) on sealed location connecting plate (2), fixedly connected with joint support locating plate (5) all around of sealed location connecting plate (2), and the inside screw thread cover of joint support locating plate (5) is equipped with fastening bolt (6).
3. A sealing structure of a buried cable branch box according to claim 2, wherein: the size of the connecting and supporting positioning plate (5) is matched with that of the square groove (102), and a fastening bolt (6) inside the connecting and supporting positioning plate (5) is in threaded connection with the inside of the buried cable branch box (1).
4. A sealing structure of a buried cable branch box according to claim 1, wherein: the inner part of the embedded groove (101) is fixedly connected with uniformly distributed raised particles, and the inner part of the embedded groove (101) is connected with the outer part of the embedded positioning rubber strip (4) in an extruding and nesting mode.
5. A sealing structure of a buried cable branch box according to claim 1, wherein: the cross-section of embedded location rubber strip (4) is the T font, and is provided with the edges and corners on embedded location rubber strip (4).
6. A sealing structure of a buried cable branch box according to claim 1, wherein: the cross section of the rubber sealing rubber strip (3) is in a concave shape.
7. A sealing structure of a buried cable branch box according to claim 2, wherein: when the underground cable branch box (1) closes the box door, the rubber sealing rubber strip (3) is firstly contacted with the box door on the underground cable branch box (1), and the box door on the underground cable branch box (1) is contacted with the rubber sealing rubber strip (3) and then contacted with the extrusion butt-joint sucker (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019336.4A CN112290504B (en) | 2020-09-25 | 2020-09-25 | Sealing structure of buried cable branch box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011019336.4A CN112290504B (en) | 2020-09-25 | 2020-09-25 | Sealing structure of buried cable branch box |
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| CN112290504A true CN112290504A (en) | 2021-01-29 |
| CN112290504B CN112290504B (en) | 2021-12-17 |
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| CN202011019336.4A Active CN112290504B (en) | 2020-09-25 | 2020-09-25 | Sealing structure of buried cable branch box |
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| CN108093615A (en) * | 2017-12-19 | 2018-05-29 | 绵阳恒持金属设备有限公司 | A kind of high performance emergent electromagnetic shielding chamber |
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| CN210443924U (en) * | 2019-09-02 | 2020-05-01 | 徐牛盅 | Environment-friendly gas chamber structure of gas insulated switchgear |
| CN210468458U (en) * | 2019-10-09 | 2020-05-05 | 连际科技集团有限公司 | Simple anti-collision and anti-opening structure between low-voltage cabinet door and cabinet body |
| CN211318848U (en) * | 2020-01-19 | 2020-08-21 | 合肥恒信华宇科技有限公司 | Divide fine case with dustproof effect |
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2020
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|---|---|---|---|---|
| GB9224311D0 (en) * | 1991-11-29 | 1993-01-06 | Sirti Spa | Hermetically sealed joint cover for fibre optic cables |
| JP2013110797A (en) * | 2011-11-17 | 2013-06-06 | Toshiba Corp | Metal enclosed switchgear |
| CN204045966U (en) * | 2014-01-14 | 2014-12-24 | 万电电气股份有限公司 | Outdoor anti-ponding power distribution cabinet |
| WO2016171047A1 (en) * | 2015-04-23 | 2016-10-27 | 株式会社日立製作所 | Switchgear |
| CN205693176U (en) * | 2016-04-25 | 2016-11-16 | 香江科技股份有限公司 | A kind of low-voltage distribution apparatus being easy to regulation installation |
| CN207426455U (en) * | 2017-11-08 | 2018-05-29 | 河南森源电气股份有限公司 | A kind of cabinet door and the switchgear using the cabinet door |
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| CN208112094U (en) * | 2018-04-04 | 2018-11-16 | 江西明正智能电气有限公司 | A kind of inflation power distribution cabinet |
| CN210443924U (en) * | 2019-09-02 | 2020-05-01 | 徐牛盅 | Environment-friendly gas chamber structure of gas insulated switchgear |
| CN210468458U (en) * | 2019-10-09 | 2020-05-05 | 连际科技集团有限公司 | Simple anti-collision and anti-opening structure between low-voltage cabinet door and cabinet body |
| CN110829221A (en) * | 2019-12-05 | 2020-02-21 | 王晓华 | Switch board that security is good |
| CN211318848U (en) * | 2020-01-19 | 2020-08-21 | 合肥恒信华宇科技有限公司 | Divide fine case with dustproof effect |
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| CN112290504B (en) | 2021-12-17 |
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Effective date of registration: 20211129 Address after: 257000 No. 9, Haigang Road, dongyinggang Economic Development Zone, Dongying City, Shandong Province Applicant after: SHANDONG WANDA CABLE Co.,Ltd. Address before: Building 12, fenglinli, Jinbin Avenue, Hedong District, Tianjin Applicant before: Sun Yonglin |
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