CN1348622A - Device for protecting splices - Google Patents
Device for protecting splices Download PDFInfo
- Publication number
- CN1348622A CN1348622A CN 00802643 CN00802643A CN1348622A CN 1348622 A CN1348622 A CN 1348622A CN 00802643 CN00802643 CN 00802643 CN 00802643 A CN00802643 A CN 00802643A CN 1348622 A CN1348622 A CN 1348622A
- Authority
- CN
- China
- Prior art keywords
- cable
- sealing
- bearing
- joint
- groove
- 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
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Classifications
-
- 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
- H02G15/117—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes for multiconductor cables
-
- 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
- H02G15/013—Sealing means for cable inlets
-
- 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
- H02G15/113—Boxes split longitudinally in main cable direction
Landscapes
- Cable Accessories (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention concerns a device for protecting splices, characterised in that it comprises two substantially semi-cylindrical identical half-shells respectively delimited on either side by two longitudinal bearing surfaces whereby they are urged to press against each other, so as to define at their inside part a groove for receiving cables, at the splices and ensure longitudinal tightness of the device around the splices and, two sealing washers having a diameter corresponding to the receiving groove cross-section provided with a series of median orifices for passing theretrough the cables to be connected thereby ensuring transverse tightness around the splices.
Description
Technical field
The present invention relates to protect the device of joint, especially protect the device of telephone cable joint.
Prior art
This device is installed in the junction of cable as usual, is used for the effect that protection circuit connects the mechanical stress that is not subjected to outside chemical erosion and can suffer to be subjected to.
These protective devices can be used for being installed in the trench, in the soil, in the atmosphere or the cable of building outside.
They must satisfy the requirement of some, they must be airtight and watertight when especially being embedded in underground (using) and running into running water (using) in trench in atmosphere or on building surface, and enough mechanical strengths should be arranged, allow tensile stress, bending stress or the distorting stress of certain limit to act on the cable.
These devices also must be when using any medium that may contact (saltiness medium (PH13) and acid medium (PH1) or be exposed to ultraviolet radiation or hydrocarbon in certain hour be chemically neutral) do not play chemical change.
In order to satisfy these requirements, conventional way is that protective device is made the form that two of being done by synthetic material are the sleeve pipe formed of semi-cylindrical half shell basically, and its end is used around the cheek of cable size or plug closes.In order to ensure the sealing of the seepage between two and half shells, can be with synthetic material or the jointing of agate Supreme Being fat between them; The sub-assembly of making is like this fixed around cable with the elasticity dressing part that is added on the half shell outer surface usually.
For the sealing of the protective device that improves such formation, there had been suggestion to be attached to half shell the inside as lining already with polymer sealing material, encapsulant preferably is gel, and cable is tightly surrounded.
As an example, this protective device has been described in disclosed WO-93/14547.
From it to being subjected to the drag of stress, this device is quite satisfied generally, but its shortcoming is to need a little flat composition surface, and sees that from the quantity of its constituent part they are quite expensive, and particularly encapsulant adopts expensive especially resin usually.
Summary of the invention
The present invention proposes a kind of connector protection device and overcomes these shortcomings, and especially for the joint of protection telephone cable, it is not only inexpensive but also quick for installation, simultaneously external chemistry and mechanism is had enough drags.
According to the present invention, this device be characterised in that it have on the one hand two same be semi-cylindrical half shell substantially, its both sides are delimited by two longitudinal supporting faces respectively, thereby and compress within it portion mutually by this two bearing-surface and form a cable that flushes with joint and lay passage and guarantee that device is in joint vertical air-tightness on every side; On the other hand, two its diameters of sealing ring with lay the cable passage cross section consistent and on a series of holes in the centre are arranged, thereby the cable that will connect can therefrom pass the horizontal air-tightness of guaranteeing device around joint.
According to the present invention, sealing ring generally is made up of the hollow part that plastics are manufactured, this hollow part polymeric material, polyurethane type gel or can be stopped up particularly by the elastomer that the cable that will be connected passes, flush with the through hole of these cables on the one hand from the teeth outwards simultaneously, flush with one or one or more peripheral annular groove on the other hand.
In addition, lay place, cable passage two ends in half shell inside and be roughly semicircular horizontal boss (molding), can make sealing ring location and cooperate therein, thereby make generation displacement of polymeric seal layer and distortion, guarantee device transverse sealing herein with its outer surface peripheral annular groove.
According to another characteristics of the present invention, a bearing-surface of half shell, i.e. first bearing-surface, almost on the total length groove is arranged at it, fill with encapsulant, particularly agate Supreme Being fat, and at another bearing-surface, promptly second bearing-surface also is that a corresponding rib is arranged on the total length basically, and the rib on one and half shells and the groove fit of second half shell make encapsulant displacement and distortion, thereby guarantees that device is at the axial impermeability around joint.
This device can hold a large amount of cables, and it is distinguished substantially is that part also has one by the enclosure space that holds joint in the central, and this space is sealed by the seal area that injects high-molecular gel or agate Supreme Being fat, thereby can not be subjected to extraneous erosion.The amount of using in the prior-art devices according to the amount of encapsulant required for the present invention is because the latter is full of this material in that protective sleeve is inner whole.
Be also pointed out that provides the agate of longitudinal sealing Supreme Being fat than the high-molecular gel considerably cheaper of guaranteeing transverse sealing.
According to the present invention, width of supporting surface generally is the magnitude of 4-10mm.
Connecting toll cable in particular cases, semi-cylindrical shells is by wide 5-10cm, and it is favourable that the polypropylene of long 20-60cm or the parts of other synthetic materials are formed.The groove mean depth is the 4-6mm magnitude, and the height of both sides of the chest is the 2-3mm magnitude.
According to the present invention, when two and half shells compress on its bearing-surface mutually, the rib that thrusts in the respective slot makes encapsulant, be to generation displacement of agate Supreme Being fat and distortion specifically, guarantee and keep encapsulant and the permanent of rib to contact, thus produce can guarantee together the space vertically close barrier appear at and prevent liquids and gases in the sleeve pipe.
According to another feature of the present invention, the bearing-surface of half-cylindrical half shell has the protruding and recessed ratchet formula connector of alternate configurations along its outer ledge, is fit to cooperate in pairs, makes device center on the cable locking by simple pressurization.
Certainly, when cable both sides half shell located with facing one another face, each protruding part cooperated with female element, and vice versa.
According to another characteristic of the invention, on each bearing-surface one or more connecting ring is arranged all.
For example, this ring can make device be connected to building surface, particularly can hang out from building surface.
But the essential characteristic that constitutes this device of theme of the present invention be be used for guaranteeing joint around the character of device of transverse sealing relevant, specifically, in factory, in advance sealing ring is filled a kind of encapsulant, this encapsulant is incompressible substantially flexible gel form, and high extensibility is arranged.
In fact, this gel is subjected to displacement for the first time and distortional stress when the cable perforation that will be connected, and cable passes gel earlier before joint is made, so gel just has the tendency of outwards extruding at the peripheral annular groove.
In case joint is made, along with two and half shells are pressed together device when closed again at bearing-surface separately, just stand same secondary stress: in fact, thereby laterally boss thrusts in the annular groove on opposite and makes the displacement of sealing gel; Guarantee like this gel and laterally boss permanent contact and keep this contact, thereby produce the barrier of guaranteeing device enclosure space transverse sealing together, the inside that appears at this device prevents liquids and gases.
Because polymeric seal gel deformation degree increases, thereby the contact force of one side encapsulant and cable, laterally the contact force of boss and encapsulant is all quite big on the other hand, so this barrier is more effective.
According to a preferred feature of the present invention, each sealing ring is two identical half packing ring head and the tail combinations of configuration relatively, preferably also is assembled together with pallet piece.
Should be pointed out that this two and half packing ring can assembling in advance in factory when needing.
Another particularly advantageous characteristics according to the present invention, each seals half packing ring a plectane, be drilled with the hole in the centre position on it, from then on the cable that connects passes in the hole, is fixed with circumferential flange on its inner surface and the flexible blade that extends radially from circumferential flange is arranged between the hole in each centre position.
In this structure, two and half shells are cylindrical, and one of them lateral surfaces of directly adjoining circumferential flange has gel, and two and half shells couple together at the concordant place of gel surface therewith.
Should be pointed out that when when assembling, gel also was subjected to passing with cable and half shell suffered identical displacement and distortional stress when closed.
According to the present invention, the flange width of half and half packing ring is that 1-2cm is better, can guarantee to have in hollow gasket the gel of q.s like this.
According to the present invention, the hole on the centre position is divided into a medium pore again and around a circle uniform several periphery holes around it, these periphery holes are separated by a slice flexible blade respectively; These blades become the radially dividing plate that constitutes the interval, can place a cable that will connect in each interval, and cable just can be imbedded in the gel fully like this.
According to another characteristic of the invention, be to constitute at interstitial hole by the triangle flag shape part that is star structure.
This feature can guarantee that the gel that is placed in the device reaches optimal number, thereby guarantees gel and want maximum contact between the stube cable.
According to another feature of the present invention, circumferential flange comprises main loop part and means of complementary annular part, main loop part and plectane medial surface become one and means of complementary annular is partly partly separated by the circumferential groove of specific width and main loop, the means of complementary annular part partly is connected with main loop by flexible blade, and the otch on the flexible blade flushes with groove.
According to another characteristic of the invention, four horizontal boss of spaced apart parallel are regularly arranged at the two ends of laying cable passage on half shell, promptly the boss of two inboards can thrust in the circumferential groove of sealing half packing ring on the one hand, live with the transverse sealing of guaranteeing device, the function of the boss in two outsides is to guarantee that these seal near the location of half packing ring joint on the other hand.
Description of drawings
Device characteristic related to the present invention will be described in more detail with reference to the accompanying drawings, wherein:
Fig. 1 is the perspective view of half shell;
Fig. 2 is the bottom view of half shell shown in Figure 1;
Fig. 3 is the section of transverse plane half shell of III-III line in Fig. 2;
Fig. 4 is the detail drawing of rib and groove fit on the expression bearing-surface;
Fig. 5 is that sealing half packing ring is at the bottom view that adds before gel-filled;
Fig. 6 is the sectional view of half packing ring shown in Figure 5 along the VI-VI line;
Fig. 7 is the sectional view of half packing ring shown in Figure 5 along the VII-VII line;
Fig. 8 is the end view of two half packing rings placed side by side.
Embodiment
According to Fig. 1, connector protection device comprises two and half shells 1,1 ', and they are identical and to have be semi-cylindrical mid portion 2 substantially, and its both sides are delimited by longitudinal supporting face 3,4.
Two and half shells 1, the 1 ' bearing-surface 3,4 with them compress mutually, and therefore semi-cylindrical mid portion 2 limits a cable that flushes with the joint (not shown) and lays path 10 (Fig. 2) in the inboard between them.
According to Fig. 2 and 3, the first bearing-surfaces 3 groove 5 that extends along total length is basically arranged.Second bearing-surface 4 has one and groove 5 corresponding ribs 6 simultaneously, also extends along total length basically.
As shown in Figure 4, when two and half shells 1,1 ' surrounded the mutual positioned in face of cable that flushes with joint, the groove 5 in one and half shells 1 cooperated with rib 6 in second half shell 1 ', and vice versa.
According to Fig. 4, the groove 5 injecting sealing material A of half and half shell put agate Supreme Being fat into pouring procedure specifically.
Rib inserts in the materials A and causes the displacement and the distortion of materials A on position shown in Figure 4, thereby guarantees to surround the longitudinal sealing between two and half shells 1,1 ' of joint (not shown).
In addition, as shown in Figure 1, half shell 1,1 ' bearing-surface are provided with the ratchet connector 20,21 of concavo-convex arranged alternate along its limit, and they cooperate in pairs, and depended on pressure just can surround half shell 1, the 1 ' locking of cable.
According to Fig. 2, half shell 1,1 ' has four isolated regularly horizontal boss 8,9, i.e. two inboard boss 8 near the portion two ends within it
1, 9
1And two outside boss 8
2, 9
2, their effect is to cooperate with the hollow sealing circle 11 shown in Fig. 5-8, to guarantee the transverse sealing of device with the mode that hereinafter will describe in detail.
According to Fig. 8, each sealing ring 11 all is by two half same packing rings 12,13 formation that combines, their head and the tail configuration relatively and interfix with pallet piece 14,14 '.
With the mode of not showing on the figure, with half packing ring, 12,13 entire inner space filling high molecule sealing materials, the sealing material is that the incompressible basically gel of high extensibility is arranged.
According to Fig. 5-8, each seals half packing ring 12,13 and all is made up of plectane 15, its inner surface is surrounded with circumferential flange 16 and extends on flexible blade 24 (having 6 on figure in the illustrated embodiment) next door, these blades 24 are irrelevant mutually and radially stretches from circumferential flange 16, so the inner space of half packing ring 12,13 is divided into 6 measure-alike spaced radials.
Flange also is divided into main loop part 17 and means of complementary annular part 18, the inner surface of main loop part 17 and plate 15 is integral and means of complementary annular part 18 is separated with main loop part 17 by the circumferential groove 19 of Rack, and be fixed to the upper by flexible blade 24, the otch 25 on the blade 24 groove therewith flushes (Fig. 7).
According to Fig. 5, plectane 15 is drilled with interstitial hole 23, and the cable (not shown) that connect can be passed this hole.These holes are made of the pennant structure that is star structure, and are arranged to central authorities one hole is arranged, and have 6 periphery holes, periphery hole to be located in respectively in the interval that is limited by radial blade 24 around it.Certainly, the invention is not restricted to this a kind of structure.
In view of foregoing, each half packing ring 12,13 is the cylindrical shape of the gel of packing into, and it directly includes gel against the horizontal surface of circumferential flange 16; Gel is also filled with in interstitial hole 23 outsides and circumferential groove 19 on the plectane 15.
In addition as shown in Figure 8, the width e of the means of complementary annular part 18 of flange 16 equal its main loop part 17 width E 1/2nd; Therefore after two and half packing rings, 12,13 usefulness pallet pieces 14,14 ' were assembled together, the sealing ring 11 that obtains had three measure-alike annular sections, by two circumferential grooves of filling with gel 19 they was separated.
Shown in Fig. 2 and 8, after two and half shells 1,1 ' close, these grooves 19 and inboard semicircle laterally boss 8
1, 9
1Cooperate, guarantee the transverse sealing of device.
This cooperation and rib 6 and shown in Figure 4 to fill with cooperating of agate Supreme Being fat in the groove 5 very alike: in fact, inboard horizontal protrudingly close 8
1, 9
1Thrust on the packing ring 11 and add in the gel-filled circumferential groove 19, make this gel produce displacement and distortion.
As for outer laterally boss 8
2, 9
2, they can guarantee sealing ring 11 accurate location around joint.
Claims (10)
1. protect the particularly device of telephone cable joint of joint, it is characterized in that:
It comprises two identical semi-cylindrical half shells (1,1 ') that are substantially on the one hand, delimit with two longitudinal supporting faces (3,4) respectively in its both sides, they thus bearing-surface compress mutually, thereby portion's formation cable consistent with joint laid passage (10) within it, and guarantees the axial impermeability of device wound joint; On the other hand, its diameter and cable are laid corresponding to two sealing rings of cross section (11) of passage (10), and a plurality of holes in the centre (23) are arranged, and the cable that connect can pass middle hole (23), thereby guarantee the transverse sealing of device wound joint,
Sealing ring (11) is made up of hollow part, injects high molecule sealing materials in it, the gel that can be thrust by the cable that will connect particularly, and gel flushes with the through hole (23) of these cables on the one hand, flushes with at least one circumferential groove (19) on the other hand, and
Half shell (1,1 ') is portion within it, be roughly semicircular horizontal boss (8,9) near laying two ends of cable passage (10), can make sealing ring (11) location and cooperate with its circumferential groove (19), thereby make high molecule sealing materials displacement and distortion, guarantee device transverse sealing in this scope.
2. device according to claim 1, it is characterized in that, a bearing-surface (3) of this half shell (1,1 '), promptly first bearing-surface has a groove (5) on its basic total length, perfusion encapsulant (A) in the groove (5), agate Supreme Being fat particularly, and another bearing-surface (4), promptly second bearing-surface is equally also on its whole substantially length, the rib (6) that a correspondence is arranged, the rib (6) of one and half shells (1,1 ') cooperates with the groove (5) of second half shell, thereby makes encapsulant (A) displacement and distortion and guarantee near the axial impermeability of device joint.
3. device according to claim 1 and 2 is characterized in that, each sealing ring (11) be by two end to end relatively configuration half same packing ring (12,13) combine.
4. device according to claim 3 is characterized in that two sealing half packing rings (12,13) are fastened to each other with pallet piece (14,14 ').
5. according to claim 3 or 4 described devices, it is characterized in that each seals half packing ring (12,13) is to be made of the plectane (15) that is drilled with through hole (23) in the centre position, connected cable can pass this hole (23), and its inner surface also has circumferential flange (16) to extend on flexible blade (24) next door, and this blade (24) radially stretches between each interstitial hole (23) from circumferential flange.
6. according to each described device in the claim 1 to 5, it is characterized in that medium pore (23) is made of the triangle flag-shaped structure that is star arrangement.
7. according to claim 5 or 6 described devices, it is characterized in that, circumferential flange (16) comprises main loop part (17) and means of complementary annular part (18), main loop part (17) fixedly connected with plectane (15) inner surface and means of complementary annular part (18) and main loop partly (17) separate by the circumferential groove (19) of Rack, flexible blade (24) partly is connected means of complementary annular part with main loop, and the otch (25) that has groove therewith to flush on it.
8. device according to claim 7 is characterized in that half shell (1,1 ') has 4 horizontal boss (8,9) of spaced apart parallel regularly at the place, two ends that cable is placed passage (10), promptly on the one hand, and two inboard boss (8
1, 9
1) can thrust the sealing half packing ring (12,13) circumferential groove (19) in to guarantee the transverse sealing of device, on the other hand, two the outside boss (8
2, 9
2) effect be to guarantee that these seal half packing ring (12,13) wound joint location.
9. according to each described device of claim 1 to 8, it is characterized in that the bearing-surface (3,4) on semi-cylindrical half shell has concavo-convex alternatively distributed pawl type connector (20,21) along its outer ledge, be suitable for paired cooperation, device ring can be locked around cable with simple compressing method.
10. according to each described device of claim 1 to 9, it is characterized in that bearing-surface (3,4) at least respectively has a connecting ring (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9901918A FR2789816B1 (en) | 1999-02-17 | 1999-02-17 | SPLICE PROTECTION DEVICE |
| FR99/01918 | 1999-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1348622A true CN1348622A (en) | 2002-05-08 |
Family
ID=9542130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00802643 Pending CN1348622A (en) | 1999-02-17 | 2000-02-16 | Device for protecting splices |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN1348622A (en) |
| AU (1) | AU2678200A (en) |
| BR (1) | BR0007044A (en) |
| CA (1) | CA2349680A1 (en) |
| FR (1) | FR2789816B1 (en) |
| WO (1) | WO2000049697A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7141738B2 (en) * | 2004-02-02 | 2006-11-28 | 3M Innovative Properties Company | Re-enterable splice enclosure |
| US7214735B2 (en) | 2004-02-02 | 2007-05-08 | 3M Innovative Properties Company | Microsphere-filled sealant materials |
| CN105843340A (en) * | 2016-04-13 | 2016-08-10 | 浪潮电子信息产业股份有限公司 | Improved controller jack |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3545773A (en) * | 1969-01-23 | 1970-12-08 | Smith Schreyer & Assoc Inc | End seal for splice case |
| US4492816A (en) * | 1982-06-30 | 1985-01-08 | Etablissements Morel, Ateliers Electromecaniques De Favieres | Splice-protecting sleeve for electric cables or telephone cables |
| US5111001A (en) * | 1990-04-13 | 1992-05-05 | Raychem Corporation | Splice case |
| WO1995023449A1 (en) * | 1994-02-28 | 1995-08-31 | Raychem Corporation | Rodent-proof aerial splice closure |
| JP3471466B2 (en) * | 1995-02-28 | 2003-12-02 | 日本電信電話株式会社 | Gasket structure of closure sleeve |
| FR2770048B1 (en) * | 1997-10-16 | 1999-12-31 | Rxs Morel Accessoires De Cable | SPLICE PROTECTION DEVICE AND METHOD FOR ALLOWING THE PLACEMENT OF SUCH A DEVICE |
-
1999
- 1999-02-17 FR FR9901918A patent/FR2789816B1/en not_active Expired - Fee Related
-
2000
- 2000-02-16 WO PCT/FR2000/000383 patent/WO2000049697A1/en active Application Filing
- 2000-02-16 CN CN 00802643 patent/CN1348622A/en active Pending
- 2000-02-16 AU AU26782/00A patent/AU2678200A/en not_active Abandoned
- 2000-02-16 BR BR0007044-0A patent/BR0007044A/en not_active IP Right Cessation
- 2000-02-16 CA CA002349680A patent/CA2349680A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| BR0007044A (en) | 2001-07-31 |
| AU2678200A (en) | 2000-09-04 |
| CA2349680A1 (en) | 2000-08-24 |
| FR2789816B1 (en) | 2001-03-30 |
| FR2789816A1 (en) | 2000-08-18 |
| WO2000049697A1 (en) | 2000-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |