CN105257912A - Cable inlet sealing structure of distribution box - Google Patents
Cable inlet sealing structure of distribution box Download PDFInfo
- Publication number
- CN105257912A CN105257912A CN201510761746.9A CN201510761746A CN105257912A CN 105257912 A CN105257912 A CN 105257912A CN 201510761746 A CN201510761746 A CN 201510761746A CN 105257912 A CN105257912 A CN 105257912A
- Authority
- CN
- China
- Prior art keywords
- distribution box
- main body
- cable section
- hole
- sealing configuration
- Prior art date
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 48
- 239000013013 elastic material Substances 0.000 claims abstract description 8
- 239000010410 layer Substances 0.000 claims description 18
- 230000008602 contraction Effects 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims 1
- 239000004700 high-density polyethylene Substances 0.000 claims 1
- 239000000428 dust Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention relates to the technical field of sealing of distribution boxes, in particular to a cable inlet sealing structure of a distribution box. The sealing structure comprises a main body and a support piece, wherein a through hole is formed in the center of the main body; the main body is integrally molded by a free end and a fixed end; the through hole is communicated with the free end and the fixed end; screw holes are formed in the bottom of the fixed end; multiple screw holes are provided, and are uniformly distributed at the bottom of the fixed end; a support piece is put in the through hole; and the main body is manufactured by a shrinkage type elastic material. The sealing structure has the characteristics of simple structure, convenience for operation, excellent tightness, safety, reliability and long service life.
Description
Technical field
The present invention relates to distribution box technical field of sealing technology, be specifically related to a kind of sealing configuration of distribution box long cable section of ingoing line mouth.
Background technique
The high pressure cabinet of outdoor use, low-voltage cabinet, cable electric closet (case) its moisture seal are of crucial importance, especially long cable section of ingoing line mouth place easily enters moisture or dust, do not keep off if moistureproof, dust-proof, or the sealing configuration used is not good, easily makes moisture or dust enter in distribution box, enters the insulator in distribution box, form creepage phenomenon on insulator, of long duration slowly will to prolong and cable and support metal steel part, to cause short circuit, even cause blast.As shown in Figure 1, use semilune baffle plate 5, semilune baffle plate 5 offers the hole slot matched with cable 3 to existing common cable distribution box incoming line sealing configuration, and cable 3 is through after hole slot, and semilune baffle plate 5 closes tightly, is then fixed on bottom distribution box.By adding seal ring or other Sealings increase sealing between semilune baffle plate 5 and cable 3, sealing life is not long, need frequently change, and adds complex and potential safety hazard that distribution box uses.
Summary of the invention
The object of the invention is for deficiency of the prior art, provide a kind of sealing configuration of distribution box long cable section of ingoing line mouth, it is simple that it has structure, easy to operate, and sealing is good, safe and reliable, the feature of long service life.
Object of the present invention is achieved through the following technical solutions:
A kind of sealing configuration of distribution box long cable section of ingoing line mouth, comprise main body and supporting element, main center offers through hole, main body by free end and fixed end one-body molded, through hole is communicated with free end and fixed end, offers screw hole bottom fixed end, screw hole is multiple, be uniformly distributed in bottom fixed end, supporting element is placed in through hole, and main body is made up of contraction elastic material.
Wherein, contraction elastic material is contraction silica gel or rubber or foamed material.Contraction silica gel, rubber and foamed material all have strong elastic and contractibility, cable is through all can natural shrinking after through hole, be close to cable surface, reach the effect of sealing, and contraction silica gel, rubber and foamed material have good heat-resisting, moisture resistance, corrosion resistance, stable chemical performance, adds practicability of the present invention and working life.
Wherein, the outer surface of through hole is surface of contact, surface of contact undulate or profile of tooth, and the tooth top of described profile of tooth is pointed or plane or arc.Through hole surface of contact undulate or profile of tooth, then after cable and the densification of through hole surface of contact are fitted, form multi-layer vacuum sealing layer, moisture or dust can need be entered in distribution box by the sealing layer of multilayer, and often enter one deck sealing layer by needs destruction air pressure balance, due to the space between trough or profile of tooth, give moisture or the certain Existential Space of dust, can weaken the pressure of moisture or dust, then increase moisture or dust enter the difficulty of distribution box; Pointed or arc or plane can increase the area of contact of cable and through hole surface of contact, ensure the sealing between cable and through hole.
Wherein, the tooth pitch of corrugated adjacent two peak-to-peak distances of ripple or profile of tooth is 0.5-15cm.The tooth pitch of corrugated adjacent two peak-to-peak distances of ripple or profile of tooth is 0.5-15cm, when not affecting sealing, gives moisture or the certain storage area of dust, enters pressure with what weaken moisture or dust; If the tooth pitch of corrugated adjacent two peak-to-peak distances of ripple or profile of tooth is less than 0.5cm, when cable fits tightly through hole surface of contact, crest or tooth top can be pressed and be gone bottom trough or profile of tooth, make the space between adjacent peaks or profile of tooth narrow, do not reach the effect storing moisture or dust; If the tooth pitch of corrugated adjacent two peak-to-peak distances of ripple or profile of tooth is greater than 15cm, the end slope angle of crest or profile of tooth is excessive, a strong support cannot be provided to crest or tooth top, to the reaction force attenuation of cable, make the laminating degree defective tightness of cable and crest or tooth top.
Wherein, the height difference between corrugated Wave crest and wave trough or the tooth depth of profile of tooth are 0.1-1cm.
Wherein, supporting element is departing support tape.After cable is inserted in, conveniently take out support tape, increase the convenience of installing.
Wherein, the outer surface of main body is provided with elastic insulating layer.The danger of leaking electricity after avoiding Long-Time Service, brings potential safety hazard.
Wherein, elastic insulating layer outer surface is provided with elastic protective layer.Play the effect of protection main body further, reduce the possibility that main body is impaired, extend working life of the present invention.
Beneficial effect of the present invention: during use, the long cable section of ingoing line mouth that cable has been accomplished fluently through distribution box, then main body of the present invention is passed by through hole, after adjusting the length that cable penetrates, take out the supporting element in through hole, because the shrinkage of contraction elastic material reaches 30%-60%, after supporting element is taken out, the surface of contact of body through-holes and naturally fit tightly cable surface, reach the object of sealing, supporting element plays the effect of expanding support before it is removed to through hole; Then by the screw hole of main body fixed end, with screw, main body is fixed on distribution box baseboard; Structure of the present invention is simple, easy for installation, the contractibility of contraction elastic material is utilized naturally to fit tightly cable surface, without the need to other Sealings with the use of just reaching good sealing effect, and contraction elastic material waterproof, stable chemical performance, resistance to temperature change is good and insulating properties is good, long service life, without the need to frequent replacing, safe and reliable.
Accompanying drawing explanation
Utilize accompanying drawing to be described further invention, but the embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Fig. 1 is the structural representation of the sealing configuration of distribution box incoming line in prior art;
Fig. 2 is the structural representation of the sealing configuration of a kind of distribution box long cable section of ingoing line of the present invention mouth;
Fig. 3 is the phantom of main body wall;
Fig. 4 is the sealing configuration using state figure of a kind of distribution box long cable section of ingoing line of the present invention mouth.
Embodiment
The invention will be further described with the following Examples.
As shown in Figures 2 to 4, in the present embodiment, a sealing configuration for distribution box long cable section of ingoing line mouth, comprises main body 1 and supporting element 2, and main body 1 center offers through hole 11, main body 1 by free end 12 and fixed end 13 one-body molded, through hole 11 is communicated with free end 12 and fixed end 13, offers multiple screw hole 131 bottom fixed end 13, and multiple screw hole 131 is uniformly distributed in bottom fixed end 13, supporting element 2 is placed in through hole 11, and main body 1 is made up of contraction silica gel.
During use, the long cable section of ingoing line mouth that cable 3 has been accomplished fluently through distribution box, then main body 1 of the present invention is passed by through hole 11, after adjusting the length that cable 3 penetrates, take out the supporting element 2 in through hole 1, because the shrinkage of contraction silica gel reaches 40%-60%, after supporting element 2 is taken out, that is the surface of contact 111 of main body 1 through hole 11 fits tightly cable 3 surface naturally, and reach the object of sealing, supporting element 2 plays the effect of expanding support before it is removed to through hole 11; Then by the screw hole 131 of main body 1 fixed end, with screw, main body 1 is fixed on distribution box baseboard 4.
Wherein, the outer surface of through hole 11 is surface of contact 111, surface of contact 111 undulate.Through hole surface of contact 111 undulate, then after cable 3 and through hole surface of contact 111 densification are fitted, form multi-layer vacuum sealing layer, moisture or dust can need be entered in distribution box by the sealing layer of multilayer, and often enter one deck sealing layer by needs destruction air pressure balance, due to the space between trough, give moisture or the certain Existential Space of dust, can weaken the pressure of moisture or dust, then increase moisture or dust enter the difficulty of distribution box; The arc shaped surface of crest can increase cable 3 and the area of contact of through hole 11 surface of contact 111, ensures the sealing between cable 3 and through hole 11.In actual applications, the surface of contact 111 of through hole 11 can be profile of tooth, and the end face of profile of tooth is arc or plane, and its effect played is equal to waveform.
Wherein, corrugated adjacent two peak-to-peak distances of ripple are 8cm.When not affecting sealing, giving moisture or the certain storage area of dust, entering pressure with what weaken moisture or dust, increasing sealing of the present invention.In actual applications, corrugated adjacent two peak-to-peak distances of ripple can be 0.5cm, 0.6cm, 6cm, 7cm, or the arbitrary distance between 0.5-15cm, and its effect is identical.
Wherein, the height difference between corrugated Wave crest and wave trough is 0.6cm.Cable 3 is avoided to compress too low by crest and reduce the peak-to-peak space of adjacent wave.In actual applications, the height difference between corrugated Wave crest and wave trough can be the arbitrary height difference between 0.1cm, 0.2cm, 0.3cm or 0.1-1cm, and its effect is identical.
Wherein, supporting element 2 is departing support tape.After cable 3 is inserted in, support tape 2 is convenient to take out, and increases the convenience of installing.
Wherein, as shown in Figure 3, the outer surface of main body 1 is provided with elastic insulating layer 14, and preferably, elastic insulating layer 14 is Elastic plastic-rubber layer, and elastic insulating layer 14 outer surface is provided with elastic protective layer 15, and preferably, elastic protective layer 15 is elastic rubber layer.Elastic plastic-rubber has splendid anti-aging characteristic and superpower heat-resistant deforming, and moisture proofness and insulating properties are well, can extend working life of the present invention; Elastic caoutchouc has good heat resistance and winter hardiness, and chemical stability is good, also has higher toughness, and environmental stress crack resistance is also better, and the features such as electrical insulating property is excellent, play a very good protection to main body.
Structure of the present invention is simple, easy for installation, the contractibility of contraction silica gel is utilized naturally to fit tightly cable 3 surface, without the need to other Sealings with the use of just reaching good sealing effect, and contraction silica gel waterproof, stable chemical performance, resistance to temperature change is good and insulating properties is good, long service life, without the need to frequent replacing, safe and reliable.
Finally should be noted that; above embodiment is only in order to illustrate technological scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technological scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. the sealing configuration of a distribution box long cable section of ingoing line mouth, it is characterized in that: comprise main body (1) and supporting element (2), described main body (1) center offers through hole (11), described main body (1) by free end (12) and fixed end (13) one-body molded, described through hole (11) is communicated with free end (12) and fixed end (13), described fixed end (13) bottom offers multiple screw hole (131), described multiple screw hole (131) is uniformly distributed in fixed end (13) bottom, described supporting element (2) is placed in through hole (11), described main body (1) is made up of contraction elastic material.
2. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 1, is characterized in that: described contraction elastic material is contraction silica gel or rubber or foamed material.
3. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 1, is characterized in that: the outer surface of described through hole (11) is surface of contact (111), described surface of contact (111) undulate or profile of tooth.
4. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 3, is characterized in that: the tooth top of described profile of tooth is pointed or plane or arc.
5. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 3, is characterized in that: the tooth pitch of described corrugated adjacent two peak-to-peak distances of ripple or profile of tooth is 0.5-15cm.
6. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 5, is characterized in that: the height difference between described corrugated Wave crest and wave trough or the tooth depth of profile of tooth are 0.1-1cm.
7. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 1, is characterized in that: described supporting element (2) is the support tape that can depart from.
8. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to any one of claim 1 to 7, is characterized in that: the outer surface of described main body (1) is provided with elastic insulating layer (14).
9. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 8, is characterized in that: described elastic insulating layer (14) outer surface is provided with elastic protective layer (15).
10. the sealing configuration of a kind of distribution box long cable section of ingoing line mouth according to claim 9, is characterized in that: described elastic protective layer (15) is high-density polyethylene layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761746.9A CN105257912A (en) | 2015-11-11 | 2015-11-11 | Cable inlet sealing structure of distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510761746.9A CN105257912A (en) | 2015-11-11 | 2015-11-11 | Cable inlet sealing structure of distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105257912A true CN105257912A (en) | 2016-01-20 |
Family
ID=55097739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510761746.9A Pending CN105257912A (en) | 2015-11-11 | 2015-11-11 | Cable inlet sealing structure of distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105257912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169569A (en) * | 2022-12-28 | 2023-05-26 | 登高电气有限公司 | Waterproof structure of power distribution box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070272429A1 (en) * | 2004-02-25 | 2007-11-29 | Paul Tapper | Cable Entry Device for Easy Installation |
| CN201121703Y (en) * | 2007-11-23 | 2008-09-24 | 秦晓霞 | Pectinate sealing ring |
| CN204190338U (en) * | 2014-04-22 | 2015-03-04 | 鼎阳电力科技服务有限公司 | A kind of cable via seal guard member |
| CN205244630U (en) * | 2015-11-11 | 2016-05-18 | 何亮 | Block terminal cable inlet's seal structure |
-
2015
- 2015-11-11 CN CN201510761746.9A patent/CN105257912A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070272429A1 (en) * | 2004-02-25 | 2007-11-29 | Paul Tapper | Cable Entry Device for Easy Installation |
| CN201121703Y (en) * | 2007-11-23 | 2008-09-24 | 秦晓霞 | Pectinate sealing ring |
| CN204190338U (en) * | 2014-04-22 | 2015-03-04 | 鼎阳电力科技服务有限公司 | A kind of cable via seal guard member |
| CN205244630U (en) * | 2015-11-11 | 2016-05-18 | 何亮 | Block terminal cable inlet's seal structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116169569A (en) * | 2022-12-28 | 2023-05-26 | 登高电气有限公司 | Waterproof structure of power distribution box |
| CN116169569B (en) * | 2022-12-28 | 2023-11-03 | 登高电气有限公司 | Waterproof structure of power distribution box |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160120 |
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| WD01 | Invention patent application deemed withdrawn after publication |