CN205092558U - Cable joint who uses among humid environment - Google Patents

Cable joint who uses among humid environment Download PDF

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Publication number
CN205092558U
CN205092558U CN201520869462.7U CN201520869462U CN205092558U CN 205092558 U CN205092558 U CN 205092558U CN 201520869462 U CN201520869462 U CN 201520869462U CN 205092558 U CN205092558 U CN 205092558U
Authority
CN
China
Prior art keywords
poling
flange
cable
cable joint
taper
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.)
Withdrawn - After Issue
Application number
CN201520869462.7U
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Chinese (zh)
Inventor
付司强
孙其平
孟宪国
杨广辉
杨乐新
刘双喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201520869462.7U priority Critical patent/CN205092558U/en
Application granted granted Critical
Publication of CN205092558U publication Critical patent/CN205092558U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a cable joint who uses among humid environment for among the operational environment of the full of liquid drop of water, water smoke. It includes that a pair of symmetry sets up and forms a casing that is used for holding joint area through the butt joint, and sets up sealed cushion in faying face department and glue with sealed, wherein, the casing includes spherical portion, flange portion and poling portion, be provided with the helicitic texture and the toper is closed up at the outer port of poling portion, and the toper is closed up and is set up in through hole end portion, and wherein, taper control is between 5 degrees to 10 degrees, and effectual length of the inclined surface is not less than 5 centimetres, and thread bush internal thread coordinates with the external screw thread of poling department to one side being close to the outer end is provided with a binding off. The utility model discloses it is good to synthesize humidity resistance, has all formed good cooperation effect in flange joint department, poling junction, stops steam and enters into insidely.

Description

The cable joint used in wet environment
Technical field
This utility model relates to a kind of cable joint construction applications.
Background technology
Along with the propelling of process of industrialization, having some special occasions in commercial Application, such as the occasion such as cooling tower, plant compact district, there is problem that is aging, electric leakage in common cable joint.
The loss caused of leaking electricity of cable joint place is very large, and especially high-voltage cable joint, exists the possibility of electric shock especially.
Protection against the tide will accomplish absolute protection against the tide, such as, drench with rain, the effect of flue gas, chemical fog, and all will play good protection effect, current cable joint position generally adopts electrical adhesive tape to protect, and effect is poor.The instructions for use of some special occasions can not be met.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides the cable joint used in wet environment, for being full of in the operational environment of the liquid globule, water smoke.
The utility model solves the technical scheme that its technical problem adopts:
The cable joint used in wet environment, is characterized in that: comprise
Be symmetrical arranged for a pair and pass through docking formation one for holding the housing of joint area, and in housing hollow, throw in moisture adsorbent, and seal gasket and fluid sealant are set at faying face place, an annular flanging is formed in the outside of flange portion, wherein, described housing entirety is hemisphere, comprises spherical portion, flange portion and poling portion; Described spherical portion and flange portion adopt corrosion resistant moulding,
Be furnished with bolt hole uniformly in the circumference of described flange portion, and punching press form muscle columnar structure outwardly between adjacent bolt hole, the muscle columnar structure of arc towards the side of expanding of housing,
A circular punching is provided with at the top of spherical portion, and outside the spherical portion that punching is corresponding, be provided with a poling portion, the external port in poling portion is provided with helicitic texture and taper closing in, wherein helicitic texture is arranged on outer surface position, and for coordinating with the thread bush of locking, taper is closed up and is arranged on through hole end, wherein, the mould taper control that described taper is closed up is between 5 degree to 10 degree, and effective chamfer length is not less than 5 centimetres
Adopt the sealing shroud of quality of rubber materials or silica gel material, comprise conical section and cylindrical section, wherein, conical section outer surface is smooth surface, tapering closes up equal with described taper, and is with at least two concentric rings at inner surface, wherein, the hardness of described conical section is Shore hardness 70, and the hardness of cylindrical section is Shore hardness 90;
For being arranged on the thread bush of poling portion external port, thread bush internal whorl coordinates with the external screw thread at poling place, outside is hexagon operating space, and the side near outer end is provided with a stair-stepping closing in, the diameter of closing in internal diameter size and cable adapts, outer side covers one deck rubber coated film.
Further, the best angle that described taper is closed up is 8 degree.
Further, the medium position in poling portion also arranges a hexagonal boss, forms the position of wrench operated.
Further, the rising height of concentric ring controls at 1 to 2 millimeter, can be nested with and form labyrinth sealing on cable.
Binding site use hardness wherein between cylindrical section and conical section is, and arranges the groove of a circular arc at connecting portion inner surface.
Further, the binding site use hardness wherein between cylindrical section and conical section is, and arranges the groove of a circular arc at connecting portion inner surface.
Further, an annular flanging is formed in the outside of flange portion.
Further, described sheet metal is copper coin, corrosion resistant plate or clad metal sheet.
Further, the effective width of described flange portion is 3 centimetres.
The beneficial effects of the utility model are, at least have following characteristic:
1, comprehensive moistureproof function admirable, all defines good fiting effect in flange connections, poling junction, stops steam and enter into inside.
2, bulk strength is high, wherein uses special reinforcement, intensive treatment at expansive positions such as flange, poling places, ensures long-term sealing property.
3, innerly fill water absorbing agent, ensure innerly to be in a dry environment, especially cable joint is in a dry environment, ensures the use safety of cable, makes environment for use better.
4, the application of adsorbent, makes joint inside remain in the environment of an anaerobic, further improves moisture effect.
Accompanying drawing explanation
Fig. 1 is stereogram of the present utility model.
Fig. 2 is the front view of Fig. 1.
Fig. 3 is end view.
Fig. 4 is A--A cutaway view in Fig. 3.
Fig. 5 is the stereogram of sealing shroud.
Fig. 6 is the further evolution schematic diagram of Fig. 1.
In figure: 1 housing, 11 spherical portion, 12 flange portion, 121 bolts hole, 122 muscle columnar structures, 13 poling portions, 131 tapers are closed up, 132 helicitic textures, 2 sealing shrouds, 21 conical sections, 211 concentric rings, 22 cylindrical sections, 23 grooves, 3 thread bushs, 31 close up, 4 seal gaskets, 5 moisture adsorbents, 6 sealing rings, 7 cables.
Embodiment
As shown in Figures 1 to 6, for existing defect, protection main body of the present utility model is as follows:
Two pairs of symmetrically arranged housings 1, wherein this housing entirety is hemisphere, comprises spherical portion 11, flange portion 12 and poling portion 13.Wherein, spherical portion and flange portion adopt moulding, can adapt to the environment of complicated humidity, clad metal sheet also can be adopted to make.The effective width of flange portion 12 is 3 centimetres, and be furnished with bolt hole 121 uniformly in circumference, wherein the precision of bolt hole is higher, and does not allow to occur burr.Between adjacent bolt hole, punching press also forms muscle columnar structure 122 outwardly, muscle columnar structure 122 towards the end that expands of housing, and is arc, along flange circumferentially, has the effect of two aspects at least, one is form reinforced structure, that is, form strengthening at flange, improve bulk strength, prevent from forming large-scale tympanites, and play special effect in the sealing stage, realize long-term sealing property.
Further, as Fig. 6, form an annular flanging 123 in the outside of flange (portion), it has two effects, and one is the intensity strengthening flange, and two is play special effect in the sealing stage, realizes long-term sealing property.
A circular punching is provided with at the top of spherical portion 11, this punching is integrated, and weld a poling, form above-mentioned poling portion 13, poling adopts the structure consistent with spherical portion material, such as copper pipe, stainless steel tube etc., form one by the technique of welding, wherein the wall thickness of poling is at least 1 centimetre, to ensure enough intensity, ensure in the process of passing at cable, the self-expanding amount of poling is less than 1 micron.Above-mentioned pad should uniformity, and ensures enough weld strengths.
The external port of poling (portion) is provided with helicitic texture 132 and taper closing in 131, wherein helicitic texture is arranged on outer surface position, for coordinating with the thread bush of locking, taper is closed up and 131 is arranged on end, wherein this taper close up 131 mould taper control between 5 degree to 10 degree, the angle of the best, such as 10 degree, and effective chamfer length is not less than 5 centimetres, by extending path, best sealing effectiveness can be reached.
Also arrange a hexagonal boss 133 at the medium position of poling (portion), the effect of this boss is the position forming wrench operated.Considering the convenient function when constructing, carrying out above-mentioned setting.
Sealing shroud 2, wherein the structure of sealing shroud is as follows: adopt quality of rubber materials or silica gel material, be conical on the whole, comprise conical section 21 and cylindrical section 22, wherein, conical section 21 outer surface is smooth surface, tapering closes up equal with poling taper above, and is the structure with multiple concentric rings 11 at inner surface, wherein, concentric rings 11 is uniformly distributed, the rising height of concentric ring controls at 1 to 2 millimeter, can be nested with on cable, and is formed with the crust of cable and coordinate, form labyrinth sealing, ensure air tight herein.Cylindrical section 22 is compacting position, wherein, the hardness of cylindrical section is greater than the hardness of conical section, that is, sealing cover is a composite construction, and the hardness of conical section 21 is in Shore hardness 70, the hardness of cylindrical section 22 is in Shore hardness 90, form good sealing effectiveness by different hardness, wherein conical section has enough flexibilities to ensure sealing property, and makes.
Further, binding site wherein between cylindrical section and conical section uses hardness in 60 (Shore hardness) left and right, and the groove 23 of a circular arc is set at connecting portion inner surface, form a stress breach, under ambient pressure, there is the distortion of local herein, make the mating surface of sealing shroud and cable finer and close, form good sealing effectiveness.
Thread bush 3, internal whorl coordinates with the external screw thread at poling place, outside is hexagon, and the side near outer end is provided with a stair-stepping closing in 31, closing in place is smooth inner surface and section, and the diameter of internal diameter size and cable adapts, be nested with in advance on cable, can be pressed in use on sealing shroud end face, form pretension, and prevent from occurring between the two loosening.
Using method is as follows: first by thread bush 3, sealing shroud 2, successively through cable 7 in poling, then the wiring of cable 7 is carried out, welding job, form tie point, tie point is now positioned within the relative space of two housings, then close up, first two housings are closed up, and in cavity, throw in moisture adsorbent 5 (being often applied in the making of vacuum glass), then seal gasket 4 is set at a ring flange place of company, and break fluid sealant in the both sides of rubber cushion, bolt is used to carry out fastening, in fastening process, fluid sealant can form sealing effectiveness between, unnecessary glue is filled among muscle columnar structure, and the sealing ring 6 of excessive formation ring-type, appearance as shown in Figure 6, then bolt is used to carry out fastening formation one, wherein the prestressing force of bolt is arranged on about 100 to 150N.m, during pretension, use two spanners, the hexagonal boss on poling fixed by spanner, another spanner acts on thread bush, both hands operate, then air-dry, again the sealing shroud of both sides is tucked in the end tapered sleeve of poling, use spanner by the thread bush of side and poling fastening, in like manner, carry out the fastening of another group thread bush.
Maintenance a few hours, after glue to be sealed parches completely, at outer side covers one deck rubber coated film of whole joint, namely complete relevant work.
Above-mentioned rubber coated film, meets long-term gastight requirement.
Embodiment two, as developing further, above-mentioned housing adopts composite alloy plate to make, and improves overall intensity.
Such as, housing parts adopts copper, stainless steel clad plate, and wherein copper coin is positioned at outside, and corrosion resistant plate is positioned at inner side.
Embodiment recited above is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; relevant technical staff in the field, to various distortion of the present utility model and improvement, all should expand in protection range as determined in the utility model claims.

Claims (7)

1. the cable joint used in wet environment, is characterized in that: comprise
Be symmetrical arranged for a pair and pass through docking formation one for holding the housing (1) of joint area, and in housing hollow, throw in moisture adsorbent (5), and seal gasket and fluid sealant are set at faying face place, an annular flanging (123) is formed in the outside of flange portion, wherein, described housing entirety is hemisphere, comprises spherical portion (11), flange portion (12) and poling portion (13); Described spherical portion and flange portion adopt moulding,
Be furnished with bolt hole (121) uniformly in the circumference of described flange portion, and punching press form muscle columnar structure (122) outwardly between adjacent bolt hole, the muscle columnar structure (122) of arc towards the side of expanding of housing,
A circular punching is provided with at the top of spherical portion (11), and outside the spherical portion that punching is corresponding, be provided with a poling portion, the external port in poling portion is provided with helicitic texture (132) and taper closing in (131), wherein helicitic texture is arranged on outer surface position, for coordinating with the thread bush of locking, taper closing in (131) is arranged on through hole end, wherein, the mould taper control of described taper closing in (131) is between 5 degree to 10 degree, and effective chamfer length is not less than 3 centimetres
Adopt the sealing shroud (2) of quality of rubber materials or silica gel material, comprise conical section (21) and cylindrical section (22), wherein, conical section (21) outer surface is smooth surface, tapering close up with described taper (131) equal, and be with at least two concentric rings (211) at inner surface, wherein, the hardness of described conical section (21) is Shore hardness 70, and the hardness of cylindrical section (22) is Shore hardness 90;
For being arranged on the thread bush (3) of poling portion external port, thread bush (3) internal whorl coordinates with the external screw thread at poling place, outside is hexagon operating space, and the side near outer end is provided with a stair-stepping closing in (31), the diameter of (31) the internal diameter size that closes up and cable adapts;
Outer side covers one deck rubber coated film.
2. the cable joint used in wet environment according to claim 1, is characterized in that, the best angle that described taper is closed up is 8 degree.
3. the cable joint used in wet environment according to claim 1, is characterized in that, the medium position in poling portion also arranges a hexagonal boss (133), forms the position of wrench operated.
4. the cable joint used in wet environment according to claim 1, is characterized in that, the rising height of concentric ring controls at 1 to 2 millimeter, can be nested with and form labyrinth sealing on cable.
5. the cable joint used in wet environment according to claim 1, it is characterized in that, binding site wherein between cylindrical section and conical section uses hardness to be (70), and arranges the groove (23) of a circular arc at connecting portion inner surface.
6. the cable joint used in wet environment according to claim 1, is characterized in that, the wall thickness in described poling portion is at least 1 centimetre, and in the process that cable passes, the self-expanding amount in poling portion is less than 1 micron.
7. the cable joint used in wet environment according to claim 1, is characterized in that, the effective width of described flange portion (12) is 3 centimetres.
CN201520869462.7U 2015-11-03 2015-11-03 Cable joint who uses among humid environment Withdrawn - After Issue CN205092558U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520869462.7U CN205092558U (en) 2015-11-03 2015-11-03 Cable joint who uses among humid environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520869462.7U CN205092558U (en) 2015-11-03 2015-11-03 Cable joint who uses among humid environment

Publications (1)

Publication Number Publication Date
CN205092558U true CN205092558U (en) 2016-03-16

Family

ID=55483212

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520869462.7U Withdrawn - After Issue CN205092558U (en) 2015-11-03 2015-11-03 Cable joint who uses among humid environment

Country Status (1)

Country Link
CN (1) CN205092558U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105262043A (en) * 2015-11-03 2016-01-20 国网山东济南市历城区供电公司 Cable joint used in humid environment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105262043A (en) * 2015-11-03 2016-01-20 国网山东济南市历城区供电公司 Cable joint used in humid environment
CN105262043B (en) * 2015-11-03 2018-03-30 国网山东济南市历城区供电公司 The cable connector used in wet environment

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20160316

Effective date of abandoning: 20180330