CN215911892U - High-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint - Google Patents
High-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint Download PDFInfo
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- CN215911892U CN215911892U CN202122111825.9U CN202122111825U CN215911892U CN 215911892 U CN215911892 U CN 215911892U CN 202122111825 U CN202122111825 U CN 202122111825U CN 215911892 U CN215911892 U CN 215911892U
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Abstract
The utility model belongs to the technical field of waterproof joints of cables, and particularly relates to a high-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint. According to the utility model, firstly, the waterproof sealant is poured into the cold-shrinkage intermediate joint to completely cover the cable core insulating layer and the metal connecting pipe, so that a water source in the cable conductor can be effectively plugged in the cable conductor, and the innermost layer is waterproof; then, two ends of the cold-shrinkage intermediate joint are plugged by adopting waterproof sealants, so that an external water source can be prevented from entering the interior of the cold-shrinkage intermediate joint, and the middle layer can be conveniently prevented from being waterproof; at last, the resin is cured and then completely filled inside and outside the three phases of the cable, so that after the protective sleeve in the cable is damaged, the outermost water source enters the inside of the cable, and the outermost layer of the cable is prevented from being waterproofed.
Description
Technical Field
The utility model relates to the technical field of waterproof joints of cables, in particular to a high-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint.
Background
Cable watertight joints are connection devices that are often used in electrical power systems. The device is mainly applied to outdoor products and medium-large remote control machines, and the device is arranged on an outdoor control system and is not arranged on the device. For example, in chemical plants, power supply offices, base stations of telecommunication networks, and plants with a high degree of automation, waterproof cable connectors are used.
The existing cold-shrinkable cable intermediate joint cannot solve the waterproof problem, the cable intermediate joint operates in damp places such as tunnels and the underground, and due to the defects of quality and installation or due to the effects of immersion, dampness, overload and other external forces, explosion accidents caused by breakdown and creepage often occur in the cable intermediate joint, so that huge loss is brought to users, other cables in cable ditches or cable bridges can be injured, and the loss can not be estimated.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving one of the technical problems of the prior art or the related art.
Therefore, the technical scheme adopted by the utility model is as follows:
high-standard full-waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint comprises a joint body and a waterproof explosion-proof mechanism, wherein the waterproof explosion-proof mechanism comprises a cable conductor connected in the joint body, a steel armor arranged in one end of the joint body, an inner protective sleeve arranged on one side of the steel armor, a cold-shrinkage intermediate joint inserted in the inner protective sleeve, a copper shielding layer connected to the cold-shrinkage intermediate joint, a constant force spring fixedly arranged on the outer surface of the copper shielding layer, a semi-conductive layer arranged on the cold-shrinkage intermediate joint, a copper shielding net connected to the outer side of the semi-conductive layer, a metal connecting pipe arranged in the cold-shrinkage intermediate joint, a wire core insulating layer connected to the cold-shrinkage intermediate joint, a waterproof sealant poured into the cold-shrinkage intermediate joint, a flame-retardant mixed resin poured into the middle position of the joint body, The glue injection port is arranged on the outer side of the joint body, and the supporting mesh belt is wound inside the joint body.
The present invention in a preferred example may be further configured to: waterproof sealant is poured into the two ends of the connector body, a PVC adhesive tape is fixed on the inner side of the waterproof sealant, and the PVC adhesive tape and the waterproof sealant at the two ends are respectively overlapped by half.
Through adopting above-mentioned technical scheme, be convenient for effectively prevent that outside water source from getting into inside the joint body.
The present invention in a preferred example may be further configured to: the copper shielding layer is arranged on the periphery of the cable and located on one side of the cold-contraction intermediate joint.
By adopting the technical scheme, the electric field is convenient to balance, and the anti-interference effect is achieved.
The present invention in a preferred example may be further configured to: the core insulating layer is made of rubber.
By adopting the technical scheme, the insulating effect is convenient to play.
The present invention in a preferred example may be further configured to: the flame-retardant mixed resin is made of polyurethane.
By adopting the technical scheme, after the polyurethane is injected with glue, because of the flowing characteristic of the polyurethane and the extrusion action of external force, the polyurethane can fully fill and coat gaps in the sealing strip in a closed space to form a solid integral structure, so that the bidirectional waterproof performance of the three-core cable joint can be fully protected, and the three-core cable joint can operate underwater for a long time.
The present invention in a preferred example may be further configured to: the number of layers of winding of the supporting mesh belt is two, and the thickness of the wound supporting mesh belt is 4 mm.
By adopting the technical scheme, the filling effect is convenient to play, and the excessive use of the sheath material of the cable sheath in the extrusion process is reduced.
The technical scheme of the utility model has the following beneficial technical effects:
1. according to the utility model, the flexible waterproof sealant with excellent performance is poured into the cold-shrinkage intermediate joint to completely cover the cable core insulating layer and the metal connecting pipe, so that a water source in the cable conductor can be effectively plugged into the cable conductor, and the waterproof effect can be conveniently realized from the innermost layer; then, two ends of the cold-shrinkage intermediate joint are plugged by adopting waterproof sealants, so that an external water source can be effectively prevented from entering the interior of the cold-shrinkage intermediate joint, and the middle layer can be conveniently prevented from being waterproof; at last through injecting fire-retardant mixed resin in supporting the guipure, fill cable three-phase inside and outside completely after the resin solidification, can effectually prevent in the cable behind the protective sheath damage, outside water source along cable three-phase sinle silk clearance flow in the shrinkage intermediate head inside, be convenient for from outermost waterproof, through the triple waterproof system that sets up, can improve the water-proof effects who connects the body greatly.
2. According to the utility model, through the mutual cooperation of the structures such as the supporting mesh belt, the flame-retardant mixed resin, the waterproof sealant and the like, a waterproof and explosion-proof cooperative system can be formed, the flame-retardant mixed resin and the cold-shrinkage middle joint form a shell after being solidified, once the cable middle joint explodes, an energy discharge channel is formed by the glue injection port and gaps between the tapes on two sides and the cable, the gathered energy is rapidly released, the explosion is effectively prevented, and the flame-retardant material in the middle can prevent the open fire generated by the breakdown from spreading.
Drawings
FIG. 1 is a schematic front sectional view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 1 at B according to the present invention.
Reference numerals:
100. a connector body;
200. a waterproof and explosion-proof mechanism; 201. a cable wire; 202. steel armor; 203. an inner protective sheath; 204. a cold-shrink intermediate joint; 205. a copper shield layer; 206. a constant force spring; 207. a semiconducting layer; 208. a copper shield mesh; 209. a metal connecting pipe; 210. a core insulating layer; 211. waterproof sealant; 212. flame-retardant mixed resin; 213. a glue injection port; 214. and supporting the mesh belt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
It is to be understood that this description is made only by way of example and not as a limitation on the scope of the utility model.
The high-standard full-waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint provided by some embodiments of the utility model is described below with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1-3, the high-standard full-waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint provided by the utility model comprises a joint body 100 and a waterproof and explosion-proof mechanism 200, wherein both ends of the joint body 100 are filled with waterproof sealant 211, a PVC tape is fixed on the inner side of the waterproof sealant 211, the PVC tape and the waterproof sealant 211 at both ends are respectively overlapped by a half, the waterproof and explosion-proof mechanism 200 comprises a cable 201 connected in the joint body 100, a steel armor 202 arranged in one end of the joint body 100, an inner protective sleeve 203 arranged at one side of the steel armor 202, a cold-shrinkage intermediate joint 204 inserted in the inner protective sleeve 203, a copper shielding layer 205 connected on the cold-shrinkage intermediate joint 204, the copper shielding layer 205 is arranged at the periphery of the cable 201 and positioned at one side of the cold-shrinkage intermediate joint 204, a constant force spring 206 fixedly arranged on the outer surface of the copper shielding layer 205, a semi-conducting layer 207 arranged on the cold-shrinkage intermediate joint 204, Connect the copper shield net 208 in the semi-conductive layer 207 outside, the metal connecting pipe 209 of setting in cold-shrink intermediate head 204, connect the sinle silk insulating layer 210 in cold-shrink intermediate head 204, the material of sinle silk insulating layer 210 is rubber, fill waterproof sealant 211 in cold-shrink intermediate head 204, fill the fire-retardant mixed resin 212 at joint body 100 middle part position, the material of fire-retardant mixed resin 212 is polyurethane, the injecting glue mouth 213 of setting in the joint body 100 outside, the winding is at the inside support guipure 214 of joint body 100, the number of layers that support guipure 214 twines is two-layer, and it is 4mm to support guipure 214 to twine the thickness.
Specifically, firstly, the flexible waterproof sealant 211 with excellent performance is poured into the cold-shrink intermediate joint 204 to completely cover the cable core insulating layer 210 and the metal connecting pipe 209, so that a water source in the cable conductor can be effectively plugged in the cable conductor, and the innermost layer is convenient for waterproofing; then, the two ends of the cold-shrink intermediate joint 204 are plugged by waterproof sealants 211, so that an external water source can be effectively prevented from entering the interior of the cold-shrink intermediate joint 204, and the middle layer can be conveniently prevented from being waterproof; finally, by injecting the flame-retardant mixed resin 212 into the supporting mesh belt 214, the resin is cured to completely fill the three-phase inside and outside of the cable, can effectively prevent external water from flowing into the cold-contraction intermediate joint 204 along the gaps of the three-phase wire cores of the cable after the protective sleeve 203 in the cable is damaged, is convenient for water prevention from the outermost layer, the triple waterproof system can greatly improve the waterproof effect of the joint body 100, meanwhile, through the mutual matching of the structures such as the supporting mesh belt 214, the flame-retardant mixed resin 212, the waterproof sealant 211 and the like, a waterproof and explosion-proof cooperative system can be formed, and the flame-retardant mixed resin 212 and the cold-shrink intermediate joint 204 form a shell after being solidified, once the joint body 100 explodes, the glue injection port 213 and gaps between the tapes on the two sides and the cable form an energy discharge channel, the gathered energy is rapidly released, the explosion is effectively prevented, and the flame-retardant material in the gap can prevent the open fire caused by the breakdown from spreading.
Example two:
with reference to fig. 1-3, on the basis of the first embodiment, the flame-retardant mixed resin 212 is made of polyurethane, and after the polyurethane is injected with glue, due to the flow characteristic of the polyurethane and the extrusion effect of an external force, the polyurethane can fully fill the gaps coated in the supporting mesh belt 214 in a closed space to form a solid integral structure, so that the bidirectional waterproof performance of the three-core cable joint can be fully protected, and the three-core cable joint can operate underwater for a long time.
On the other hand, the number of layers wound by the supporting mesh belt 214 is two, and the thickness of the wound supporting mesh belt 214 is 4mm, so that the filling effect is facilitated, and the excessive use of the sheath material of the cable sheath in the extrusion process is reduced.
The working principle and the using process of the utility model are as follows: firstly, a flexible waterproof sealant 211 with excellent performance is poured into the cold-shrink intermediate joint 204 to completely cover the cable core insulating layer 210 and the metal connecting pipe 209, so that a water source in the cable conductor can be effectively plugged in the cable conductor, and the innermost layer is convenient for waterproofing; then, the two ends of the cold-shrink intermediate joint 204 are plugged by waterproof sealants 211, so that an external water source can be effectively prevented from entering the interior of the cold-shrink intermediate joint 204, and the middle layer can be conveniently prevented from being waterproof; finally, by injecting the flame-retardant mixed resin 212 into the supporting mesh belt 214, the resin is cured to completely fill the three-phase inside and outside of the cable, can effectively prevent external water from flowing into the cold-contraction intermediate joint 204 along the gaps of the three-phase wire cores of the cable after the protective sleeve 203 in the cable is damaged, is convenient for water prevention from the outermost layer, the triple waterproof system can greatly improve the waterproof effect of the joint body 100, meanwhile, through the mutual matching of the structures such as the supporting mesh belt 214, the flame-retardant mixed resin 212, the waterproof sealant 211 and the like, a waterproof and explosion-proof cooperative system can be formed, and the flame-retardant mixed resin 212 and the cold-shrink intermediate joint 204 form a shell after being solidified, once the joint body 100 explodes, the glue injection port 213 and gaps between the tapes on the two sides and the cable form an energy discharge channel, the gathered energy is rapidly released, the explosion is effectively prevented, and the flame-retardant material in the gap can prevent the open fire caused by the breakdown from spreading.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.
Claims (6)
1. High standard is waterproof fire-retardant type injecting glue cold contraction formula intermediate head entirely, its characterized in that includes:
a joint body (100);
waterproof explosion-proof mechanism (200), including connecting cable conductor (201), setting in joint body (100) are in joint body (100) inside steel armour (202), setting are in interior protective sheath (203), the grafting of steel armour (202) one side are in cold-shrink intermediate head (204) inside of interior protective sheath (203), connection are in copper shield layer (205), fixed mounting on cold-shrink intermediate head (204) are in constant force spring (206) of copper shield layer (205) surface, setting are in semi-conductive layer (207) on cold-shrink intermediate head (204), connection are in copper shield net (208) in semi-conductive layer (207) outside, setting are in metal connecting pipe (209) in cold-shrink intermediate head (204), connection are in sinle silk insulating layer (210) in cold-shrink intermediate head (204), fill in waterproof sealant (211) in cold-shrink intermediate head (204), The connector comprises a flame-retardant mixed resin (212) poured in the middle of the connector body (100), a glue injection port (213) arranged on the outer side of the connector body (100), and a support mesh belt (214) wound inside the connector body (100).
2. The high-standard full waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint as claimed in claim 1, wherein both ends of the joint body (100) are impregnated with waterproof sealant (211), a PVC tape is fixed to the inside of the waterproof sealant (211), and the PVC tape is half lapped with the waterproof sealant (211) at both ends.
3. The high-standard full-waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint as claimed in claim 1, wherein the copper shielding layer (205) is arranged at the periphery of the cable (201) and is positioned at one side of the cold-shrinkage intermediate joint (204).
4. The high-standard full-waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint as claimed in claim 1, wherein the core insulating layer (210) is made of rubber.
5. The high-standard full waterproof flame-retardant glue-injection cold-shrinkage type intermediate joint as claimed in claim 1, wherein the flame-retardant mixed resin (212) is made of polyurethane.
6. The high-standard full waterproof flame-retardant glue injection and cold shrinkage type intermediate joint as claimed in claim 1, wherein the number of layers wound by the support mesh belt (214) is two, and the thickness of the wound support mesh belt (214) is 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122111825.9U CN215911892U (en) | 2021-09-02 | 2021-09-02 | High-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122111825.9U CN215911892U (en) | 2021-09-02 | 2021-09-02 | High-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint |
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| CN215911892U true CN215911892U (en) | 2022-02-25 |
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| CN202122111825.9U Active CN215911892U (en) | 2021-09-02 | 2021-09-02 | High-standard full-waterproof flame-retardant glue injection cold-shrinkage type intermediate joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117240018A (en) * | 2023-11-14 | 2023-12-15 | 天津普友机电设备股份有限公司 | Joint process of stator winding wire and power cable of submersible motor |
-
2021
- 2021-09-02 CN CN202122111825.9U patent/CN215911892U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117240018A (en) * | 2023-11-14 | 2023-12-15 | 天津普友机电设备股份有限公司 | Joint process of stator winding wire and power cable of submersible motor |
| CN117240018B (en) * | 2023-11-14 | 2024-03-08 | 天津普友机电设备股份有限公司 | Joint process of stator winding wire and power cable of submersible motor |
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