CN208521663U - A kind of water proof type pre-branched cable - Google Patents
A kind of water proof type pre-branched cable Download PDFInfo
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- CN208521663U CN208521663U CN201820988049.6U CN201820988049U CN208521663U CN 208521663 U CN208521663 U CN 208521663U CN 201820988049 U CN201820988049 U CN 201820988049U CN 208521663 U CN208521663 U CN 208521663U
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- cable
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- branch cable
- fixing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model provides a kind of water proof type pre-branched cable, including leader cable, branch cable and fixing piece, the leader cable includes leading battery core and main line oversheath, the branch cable includes branch conductive core and branch line oversheath, the leading battery core is connected to form tie point with branch conductive core, the outside of the tie point is enclosed with insulation material layer, the external of the insulation material layer wraps up a water blocking layer, water-absorbent material is provided between the insulation material layer and water blocking layer, the external of the water blocking layer wraps up a protective jacket；The fixing piece is located at the outside of the protective jacket, and leader cable and branch cable are connected and fixed by the fixing piece；The water proof type pre-branched cable good water-proof effect, and can be avoided unnecessary waste.
Description
Technical Field
The utility model relates to a cable field, in particular to branch cable is in advance divided to waterproof type.
Background
The pre-branch cable is a cable for prefabricating branch lines according to the requirement of a customer when a main cable is produced, is a new technical product which is started in recent years, has the advantages of reliable power supply, convenient installation, good waterproof performance, small building area occupation, low failure rate, low price, maintenance-free and the like, is widely applied to vertical power supply in electrical shafts of high and medium-rise buildings, residential buildings, commercial buildings, hotels and hospitals, and is also suitable for power supply systems of tunnels, airports, bridges, highways and the like. As the trunk and the branches of the pre-branch cable are connected in the joint box, if the joint box is not sealed tightly, once water enters or is affected with damp in the joint box, the electrical insulation performance in the joint box is greatly reduced, and in severe cases, short circuit is directly caused. This problem is particularly acute when used in high humidity environments. In addition, if the existing pre-branch cable has deviation, the cable needs to be customized from a new one, which causes serious waste.
SUMMERY OF THE UTILITY MODEL
Therefore, a waterproof pre-branch cable with good waterproof effect and capable of effectively avoiding waste is needed.
The embodiment of the utility model provides a branch cable is in advance arranged to waterproof type, including main cable, branch cable and mounting, main cable includes leading electric core and thread oversheath, branch cable includes a branch electric core and a branch line oversheath, leading electric core is connected with a branch electric core and is formed the tie point, the outside parcel of tie point has the insulating material layer, the outside parcel of insulating material layer has a water blocking layer, be provided with the material that absorbs water between insulating material layer and the water blocking layer, a lag is wrapped up to the outside of water blocking layer; the fixing piece is located outside the protective sleeve and is used for connecting and fixing the main cable and the branch cable.
Preferably, the exposed main cell and the branch conductive core are fixedly connected through a C-shaped clamp, and the insulating material layer completely wraps the exposed main cell and the branch conductive core.
Preferably, the water absorbing material is wrapped outside the insulating material layer, and the water absorbing material covers the insulating material layer; alternatively, the water absorbent material is disposed around the main cable and the branch cable.
Preferably, the water blocking layer close to the main cable and the branch cable extends to a direction far away from the connection point to form a sealing section, and the sealing section is attached to the main cable or the branch cable.
Preferably, the protective sleeve adjacent the main and branch cables extends away from the connection point and engages the main or branch cable.
Preferably, the joint positions of the protective sleeve and the main cable and the branch cable are sealed by a sealant, and the sealant is hot melt adhesive.
Preferably, the mounting includes base and fixing base, the connection can be dismantled to base and fixing base, be provided with a plurality of cable duct on the base, be provided with on the fixing base a plurality of with cable duct matched with fixed slot.
Preferably, a compressing member is arranged in the fixing groove, the compressing member is slidably connected in the fixing groove, a bolt is rotatably connected to one side, away from the cable groove, of the compressing member, the bolt penetrates through the fixing seat and then is connected with the compressing member, and the bolt is in threaded connection with the fixing seat.
Preferably, the fixing groove is a square groove, a pressing groove is formed on the pressing piece, the pressing groove is recessed towards a direction far away from the fixing groove, and the pressing groove is matched with the main cable or the branch cable in shape.
Preferably, the cable trough is provided in a form-fitting manner with the main cable or the branch cable.
The utility model forms three-layer protection for the connection point of the main cable and the branch cable by arranging the protective sleeve, the waterproof layer and the water absorbing material, thereby effectively improving the waterproof and waterproof performances; due to the arrangement of the fixing piece, the adaptive capacity of the pre-branch cable is stronger, the pre-branch cable is more durable, and waste is effectively avoided.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a sectional view of a waterproof branch cable according to an embodiment of the present invention;
fig. 2 is a sectional view of a waterproof branch cable according to another embodiment of the present invention;
fig. 3 is a side view of the fixing member of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.
As shown in fig. 1 to 3, the embodiment of the present invention provides a waterproof pre-branch cable, which includes a main cable 10, a branch cable 20 and a fixing member 6. The main cable 10 includes a main electrical core and a main line outer sheath, and a waterproof layer, a fireproof material, a heat insulating material, or the like may be preferably disposed between the main electrical core and the main line outer sheath. The branch cable 20 includes a branch conductive core and a branch outer sheath, and further, a waterproof layer, a fireproof material, a heat insulating material, or the like may be disposed between the main conductive core and the main outer sheath. The main conductive core and the branch conductive core are connected to form a connection point. The outside parcel of tie point has insulating material layer 2, and insulating material layer 2's outside parcel is a water blocking layer 4, and water blocking layer 4 is the second floor protection, is used for preventing steam invasion, influences insulating material's insulating properties. Be provided with water absorbing material 3 between insulating material layer 2 and the water blocking layer 4, water absorbing material 3 forms the protection of third layer, will invade the inside steam absorption of water blocking layer 4, prevents that steam from further invading to inside. The outside parcel of water blocking layer 4 is a lag 5, and lag 5 is the first layer protection that prevents the steam invasion. The fixing piece 6 is positioned outside the protective sleeve 5, the main cable 10 and the branch cable 20 are fixedly connected through the fixing piece 6, when small-amplitude deviation occurs at the branch position of the branch cable 20, the pre-branch cable can still be used by adjusting the position of the fixing piece 6, the use of the pre-branch cable 20 cannot be influenced due to the deviation of the branch position, and unnecessary waste is reduced.
In a preferred embodiment, the bare main conductive core and the branch conductive core are fixedly connected through a C-shaped clamp 1, and the C-shaped clamp 1 is a copper clamp or an aluminum clamp. The C-clamp 1 clamps the main cell and the branch conductive core, and the main cell and the branch conductive core are clamped by external force, for example, the C-clamp 1 is fastened by a hammer to fix the main cell and the branch conductive core. The insulating material layer 2 completely wraps the exposed main conductive core and the branch conductive core, so that the problem of short circuit is prevented.
In a preferred embodiment, the water absorbing material 3 is wrapped outside the insulating material layer 2, and the water absorbing material 3 covers the insulating material layer 2, so that the water absorbing material 3 has a large volume and can absorb more water vapor; alternatively, the water absorbent material 3 is disposed around the main cable 10 and the branch cable 20.
In a preferred embodiment, the water resistant layer 4 adjacent the main cable 10 and the branch cable 20 extends away from the connection point to form a seal section 41. The sealing section 41 is attached to the main cable 10 or the branch cable 20, so that the waterproof layer 4 is better sealed, the waterproof effect is better, and water vapor invading into the waterproof layer 4 is reduced as much as possible. Even if moisture invades the water-blocking layer 4, the water-absorbent material 3 absorbs the invaded moisture.
In a preferred embodiment, the boot 5 adjacent to the main cable 10 and the branch cable 20 extends away from the connection point and engages either the main cable 10 or the branch cable 20. The boot 5 seals the main cable 10 or the branch cable 20 to reduce the intrusion of moisture into the interior of the boot 5. The joint positions of the protective sleeve 5, the main cable 10 and the branch cable 20 are sealed by sealing glue, and the sealing glue is hot melt adhesive. The volume of the hot melt adhesive can vary with temperature, and as the temperature increases, the volume of the protective sleeve 5 increases, and if there is no hot melt adhesive, the gap between the protective sleeve 5 and the main cable 10 or the branch cable 20 increases, and the provision of the hot melt adhesive just ameliorates this.
In the preferred embodiment, the waterproof layer 4 is a polyamide resin layer, and because the polyamide resin has the characteristic of water swelling, when water vapor invades, the dilute amide resin swells, so that the waterproof layer can be better sealed, and the waterproof effect is good. The water absorbing material 3 is high-substitution degree cross-linked carboxymethyl cellulose, and has good water absorbing and retaining effects. The protective jacket 5 is high density polyethylene, which has good radial water resistance.
In a preferred embodiment, a flame retardant material 7 is filled between the insulating material layer 2 and the water blocking layer 4 or the water absorbing material 3, and the flame retardant material 7 is ceramic silicon rubber. The ceramic silicon rubber is burnt to generate a hard ceramic shell which can protect the substances in the ceramic shell. An aluminum-plastic composite belt 8 is filled between the outer sheath 5 and the water-blocking layer 4, and the aluminum-plastic composite belt 8 also has a good waterproof effect.
In the preferred embodiment, the fixing member 6 comprises a base 61 and a fixing seat 62, the base 61 and the fixing seat 62 are detachably connected, and preferably, the base 61 and the fixing seat 62 are fixed by screws. The base 61 is provided with a plurality of cable slots 611, and the fixing base 62 is provided with a plurality of fixing slots 621 matching with the cable slots 611. The cable groove 611 and the fixing groove 621 cooperate to form a through hole through which the main cable 10 and the branch cable 20 pass through. In a preferred embodiment, a pressing member 63 is disposed in the fixing groove 621, and the pressing member 63 is slidably coupled in the fixing groove 621. One side of the pressing piece 63, which is far away from the cable groove 611, is rotatably connected with a bolt 64, the bolt 64 penetrates through the fixing base 62 and then is connected with the pressing piece 63, and the bolt 64 is in threaded connection with the fixing base 62. By tightening the bolt 64, the pressing member 63 is pressed in the direction of the cable groove 611, and the main cable 10 and the branch cable 20 positioned in the cable groove 611 and the fixing groove 621 are pressed, thereby achieving a good fixing effect. In a preferred embodiment, the fixing groove 621 is a square groove, the pressing member 63 is formed with a pressing groove 631, the pressing groove 631 is recessed away from the fixing groove 621, and the pressing groove 631 is configured to match with the main cable 10 or the branch cable 20 in shape, so that the pressing member 63 has a larger contact area with the main cable 10 or the branch cable 20. The shape of the cable groove 611 is matched with that of the main cable 10 or the branch cable 20, so that the contact area of the cable groove 611 with the main cable 10 and the branch cable 20 is larger. The pressing piece 63 presses the main cable 10 and the branch cable 20 in the cable groove 611, so that the fixing effect is good. When the position of the prefabricated branch cable 20 deviates, the position of the fixing piece 6 can be adjusted, so that the branch cable 20 is adapted to the actual situation. Avoiding the need to be newly fabricated due to improper positioning of the pre-fabricated drop cable 20, saving time and money, and avoiding unnecessary waste. In addition, the fixing member 6 also has the function of preventing the branch point of the pre-branch cable 20 from being torn, so that the pre-branch cable is more durable.
The utility model forms three-layer protection for the connection point of the main cable and the branch cable by arranging the protective sleeve, the waterproof layer and the water absorbing material, thereby effectively improving the waterproof and waterproof performances; due to the arrangement of the fixing piece, the adaptive capacity of the pre-branch cable is stronger, the pre-branch cable is more durable, and waste is effectively avoided.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A waterproof pre-branching cable is characterized by comprising a main cable, a branch cable and a fixing piece, wherein the main cable comprises a main conductive core and a main line outer sheath, the branch cable comprises a branch conductive core and a branch line outer sheath, the main conductive core and the branch conductive core are connected to form a connecting point, an insulating material layer wraps the outside of the connecting point, a water-blocking layer wraps the outside of the insulating material layer, a water absorbing material is arranged between the insulating material layer and the water-blocking layer, and a protective sleeve wraps the outside of the water-blocking layer; the fixing piece is located outside the protective sleeve and is used for connecting and fixing the main cable and the branch cable.
2. The waterproof pre-branch cable of claim 1 wherein the bare primary cell and the branch conductive core are fixedly connected by a C-clip, and the insulating material layer completely encapsulates the bare primary cell and the branch conductive core.
3. The waterproof pre-branch cable of claim 1 wherein the water absorbent material is wrapped around the exterior of the layer of insulating material and covers the layer of insulating material; or,
the water absorbing material is arranged around the main cable and the branch cable.
4. The waterproof pre-branch cable of claim 1 wherein the water-blocking layer adjacent the main cable and the branch cable extends away from the connection point to form a sealing section, the sealing section being positioned adjacent the main cable or the branch cable.
5. The waterproof pre-branch cable of claim 1 wherein the protective jacket proximate the main cable and the branch cable extends away from the connection point and conforms to the main cable or the branch cable.
6. The waterproof pre-branch cable of claim 5 wherein the location where the protective sleeve engages the main cable and the branch cable is sealed by a sealant, the sealant being a hot melt adhesive.
7. The waterproof pre-branched cable according to claim 1, wherein the fixing member comprises a base and a fixing seat, the base and the fixing seat are detachably connected, the base is provided with a plurality of cable grooves, and the fixing seat is provided with a plurality of fixing grooves matched with the cable grooves.
8. The waterproof pre-branch cable according to claim 7, wherein a pressing member is disposed in the fixing groove, the pressing member is slidably connected to the fixing groove, a bolt is rotatably connected to a side of the pressing member away from the cable groove, the bolt penetrates through the fixing seat and then is connected to the pressing member, and the bolt is in threaded connection with the fixing seat.
9. The waterproof pre-branching cable of claim 8, wherein the fixing groove is a square groove, the pressing member is formed with a pressing groove, the pressing groove is recessed in a direction away from the fixing groove, and the pressing groove is formed to be fitted to the shape of the main cable or the branch cable.
10. The waterproof pre-branch cable according to claim 7, wherein the cable groove is formed to fit the shape of the main cable or the branch cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820988049.6U CN208521663U (en) | 2018-06-25 | 2018-06-25 | A kind of water proof type pre-branched cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820988049.6U CN208521663U (en) | 2018-06-25 | 2018-06-25 | A kind of water proof type pre-branched cable |
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| Publication Number | Publication Date |
|---|---|
| CN208521663U true CN208521663U (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820988049.6U Active CN208521663U (en) | 2018-06-25 | 2018-06-25 | A kind of water proof type pre-branched cable |
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| CN (1) | CN208521663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114255910A (en) * | 2021-12-28 | 2022-03-29 | 浙江卓众电力科技有限公司 | Pre-branch cable with branch hiding function |
-
2018
- 2018-06-25 CN CN201820988049.6U patent/CN208521663U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114255910A (en) * | 2021-12-28 | 2022-03-29 | 浙江卓众电力科技有限公司 | Pre-branch cable with branch hiding function |
| CN114255910B (en) * | 2021-12-28 | 2023-11-24 | 浙江卓众电力科技有限公司 | Pre-branching cable with branch hiding function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No.8, Guanshan South Road, Xiuquan street, Huadu District, Guangzhou, Guangdong 510800 Patentee after: GUANGDONG KINGFORYOU WIRE CABLE Co.,Ltd. Address before: 510800 Xinhua Industrial Zone, West Yingbin Avenue, Xinhua Street, Huadu District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG KINGFORYOU WIRE CABLE Co.,Ltd. |