CN112510466B - A kind of cable quick connection construction method - Google Patents

Abstract

The utility model relates to a construction method is refuted fast to cable, through establishing waterproof external member cover at cable body outer peripheral face, and before two waterproof external members splice, accomplish crimping and insulation treatment of two cable body sinle silks, and through the threaded connection of two waterproof external members, from the shell that forms parcel cable body junction, thereby reduced the junction and exposed the outer condition, the ageing speed of insulating tape has been delayed, and then the waterproof performance of cable body junction has been improved, with waterproof external member and cable body locking through the retaining member, be favorable to reducing the gliding probability of cable body appearance, lock cable body in through-hole department simultaneously, be favorable to reducing the condition that water gets into in the waterproof external member cavity from through-hole department, be favorable to improving the waterproof performance of this waterproof external member.

Description

A kind of cable quick connection construction method

technical field

The present application relates to the field of cable maintenance, and in particular, to a construction method for quick connection of cables.

Background technique

A cable is made of one or more mutually insulated conductors and an outer insulating protective layer, which transmits power or information from one place to another. When the cable length of a cable reel does not meet the design requirements of the line, It is necessary to connect the two sections of cable through the middle connector of the cable.

In the related rapid cable connection process, generally, the ends of the two cables are opened with diagonal pliers or a utility knife, so that the cores at both ends of the cable are exposed, and the cores of the two cables are separated. The crimp is fixed on both ends of the over-connector, and the ends of the two cables are wrapped and fixed with insulating tape, which plays the role of insulation and waterproofing.

In view of the above-mentioned related technologies, the inventor believes that when the cable is used for a long time and is exposed to the wind and the sun for a long time, the insulating tape is easy to age, so that the waterproof performance is deteriorated, and the circuit short circuit due to water seepage is prone to occur. So there is still room for improvement.

SUMMARY OF THE INVENTION

In order to improve the waterproof performance of cables, the present application provides a construction method for rapid connection of cables.

A cable quick connection construction method provided by the application adopts the following technical solutions:

A construction method for quick connection of cables, comprising the following steps:

Step 1: Prefabricated waterproof kits and copper wire connectors;

Step 2: Install the waterproof kit: Prepare two waterproof kits that cooperate with each other, and put the two waterproof kits on the ends of the two cable bodies respectively;

Step 3: Cable opening processing: cut off the insulating layers at the ends of the two cable bodies to expose the cores of the cable bodies;

Step 4: Crimp the cable body: crimp the cores of the cable body to the two ends of the copper wire connector respectively;

Step 5: Cable insulation treatment: use insulating tape to bind and fix the exposed parts of the two cores and the exposed copper wire connectors;

Step 6: Splicing waterproof kit;

Step 7: The waterproof kit is sealed and waterproof;

The waterproof sleeve is cylindrical and has an opening at one end, the bottom wall of the waterproof sleeve has a through hole for the cable body to pass through, the two waterproof sleeve openings are facing each other, and the inner peripheral surface of one of the waterproof sleeves is the same as the one. The outer peripheral surface of the other waterproof kit is threadedly connected, and the outer bottom wall of the waterproof kit is provided with a locking member for locking the cable body.

By using the above technical solution, the waterproof kit is sleeved on the outer peripheral surface of the cable body, and before the two waterproof kits are spliced, the crimping and insulation treatment of the cores of the two cable bodies are completed, and the threads of the two waterproof kits are completed. The connection forms a shell that wraps the connection of the cable body, thereby reducing the exposure of the connection, delaying the aging speed of the insulating tape, and improving the waterproof performance of the connection of the cable body. The cable body is locked, which is beneficial to reduce the probability of sliding of the cable body. At the same time, the cable body is locked at the through hole, which is beneficial to reduce the situation that water enters the cavity of the waterproof kit from the through hole, and is beneficial to improve the waterproofness. Water resistance of the kit.

Preferably, a first annular groove is formed on the inner side wall of the through hole, and a rubber ring is arranged in the first annular groove. When the cable body passes through the through hole, the rubber ring is sleeved on the cable body peripheral surface.

By adopting the above technical solution, the rubber ring in the first annular groove is sleeved on the outer peripheral surface of the cable body, so as to fill the gap between the water from the through hole and the cable body, and prevent water from infiltrating into the cavity of the waterproof kit The inner path is beneficial to improve the waterproof performance of the waterproof kit.

Preferably, a drive ring is arranged in the first annular groove, the drive ring is sleeved on the outer side of the rubber ring, the inner side of the drive ring is provided with a number of driving teeth distributed in the circumferential direction, and the outer side of the rubber ring is provided with a number of driving teeth Circumferentially distributed rubber blocks, a plurality of the driving teeth and a plurality of the rubber blocks are arranged in a staggered manner, the two end faces of the rubber ring are respectively provided with a plurality of guide grooves, and the extension lines in the length direction of the guide grooves meet at the At one point of the axis of the through hole, the two inner side walls of the first annular groove are provided with a number of limit blocks respectively located in the guide grooves; the outer peripheral surface of the waterproof sleeve is provided with an operation groove that communicates with the first annular groove, so The outer side of the drive ring is provided with an operating rod located in the operating groove. When the tooth tops of the driving teeth and the rubber blocks are pressed against one end of the driving ring one by one, the inner side of the rubber ring is pressed against the outer peripheral surface of the cable body. .

By adopting the above technical solution, the driving ring can be driven to rotate by swinging the operating rod, and the driving teeth on the inner side of the driving ring can press the rubber block on the outer side of the rubber ring in the tangential direction of the inner ring of the driving ring, so that the limiting effect of the limit block is Under the guidance of the guide groove, the rubber ring does not rotate with the driving ring, and the driving teeth and the rubber block are changed from the staggered state to the mutually tight state, and the rubber ring is forced to shrink and press against the outer peripheral surface of the cable body. , which further improves the sealing performance of the rubber ring, which is beneficial to improve the waterproof performance of the waterproof kit.

Preferably, a second annular groove is formed on the outer peripheral surface of the waterproof sleeve, the second annular groove is rotatably connected with an outer ring that closes the opening of the operating groove, and the inner side of the outer ring is fixedly connected to the end of the operating rod away from the drive ring .

By adopting the above technical solution, under the linkage of the operating lever. The drive ring can be driven to rotate by rotating the outer ring, which is convenient for the installation personnel to operate. At the same time, the outer ring closes the opening of the operation slot, thereby reducing the water entering the cavity of the waterproof kit from the operation slot, which is beneficial to improve the waterproof performance of the waterproof kit.

Preferably, the outer ring, the operating rod and the driving ring are jointly provided with injection holes, and both ends of the injection holes are respectively connected to the outer side of the outer ring and the inner side of the driving ring.

By adopting the above technical solution, the injection hole is connected to the outside of the waterproof kit and the inside of the first annular groove, so that the resin can be injected into the injection hole to fill the gap inside the waterproof kit. After the resin is cured, it is beneficial to further improve the The waterproof performance of the waterproof kit.

Preferably, the rubber ring is provided with a plurality of connecting holes, and the connecting holes communicate with the inner side of the rubber ring and the outer side of the rubber ring.

By adopting the above technical solution, the resin can pass through the connecting hole and the outer peripheral surface of the cable body, and after the resin is cured, it is beneficial to improve the stability of the cable body at the through hole.

Preferably, a third annular groove is formed on the inner side of the rubber ring, and the bottom wall of the third annular groove communicates with a plurality of the connecting holes.

By adopting the above technical solution, the resin enters the third annular groove through the connecting hole, and after the resin is cured, a waterproof ring is formed on the outer peripheral surface of the cable body, thereby further improving the waterproof performance of the waterproof kit.

Preferably, the outer peripheral surface of the waterproof sleeve is provided with a connecting groove which communicates with the first annular groove, and the outer side of the driving ring is provided with a connecting rod which is located in the connecting groove and is fixedly connected with the outer side of the driving ring. The rings pass through together with air holes, the two ends of the air holes are respectively connected to the outer side of the outer ring and the inner side of the driving ring, and the outer ring is provided with a rubber plug that closes the air holes.

By adopting the above technical solution, the voids inside the waterproof kit are communicated with the outside through the air holes and the injection holes, which is beneficial to maintain a balance between the pressure in the waterproof kit and the atmospheric pressure when the resin is injected into the injection holes, which is beneficial to improve the injection rate of the resin. Through the setting of the rubber stopper, the resin can be sealed after filling the internal void of the waterproof kit, which is convenient for resin curing and molding.

To sum up, the present application includes at least one of the following beneficial technical effects:

1. By covering the outer circumference of the cable body with a waterproof kit and connecting the two waterproof kits with threads, a protective barrier is formed around the connection of the cable body, thereby reducing the exposure of the connection and delaying the insulation tape. The aging speed of the cable body is improved, and the waterproof performance of the connection of the cable body is improved;

2. Through the opening of the injection hole, the injection hole and the inner gap of the waterproof kit are connected to the outside world, and by injecting the injection hole into the inner gap of the waterproof kit, it is beneficial to improve the waterproof performance of the waterproof kit.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

FIG. 2 is a schematic diagram of the internal structure of the waterproof kit in the embodiment of the present application.

FIG. 3 is an enlarged schematic view of A in FIG. 2 .

FIG. 4 is a radial cross-sectional view of the outer ring and the waterproof sleeve in this embodiment.

FIG. 5 is an enlarged schematic view of B in FIG. 4 .

Description of reference numerals: 1. cable body; 11. wire core; 2. waterproof kit; 21, first annular groove; 211, limit block; 22, operating groove; 23, second annular groove; 24, connecting groove ;3, copper wire connector; 31, casing; 32, soft copper wire; 4, locking piece; 41, hoop; 42, rubber ring; 5, insulating tape; 6, rubber ring; 61, rubber block; 62, connecting hole; 63, guide groove; 64, third annular groove; 7, rubber plug; 8, outer ring; 81, operating rod; 811, injection hole; 82, connecting rod; 821, air hole; 83, drive ring; 831, drive teeth.

Detailed ways

The present application will be further described in detail below in conjunction with accompanying drawings 1-5.

The embodiment of the present application discloses a construction method for rapid connection of cables. 1 and 2, a construction method for quick connection of cables includes the following steps:

Step 1: Prefabricated waterproof kits and copper wire connectors;

Step 2: Install the waterproof kit: Prepare two waterproof kits 2 that cooperate with each other, and put the two waterproof kits 2 on the ends of the two cable bodies respectively;

Step 3: Cable body opening processing: use diagonal pliers to cut off the insulating layers at the ends of the two cable bodies 1, so that the wire core 11 of the cable body 1 is exposed for a predetermined length;

Step 4: Crimp the cable body: connect the wire cores 11 of the two cable bodies 1 to the two ends of the copper wire connector 3 respectively and use the crimping pliers for crimping and fixing;

Step 5: Insulation treatment of the cable body: use insulating tape 5 to wrap and fix it on the exposed parts of the two cores 11 and the exposed parts of the copper wire connector 3;

Step 6: Splicing waterproof kit;

Step 7: The waterproof kit is sealed and waterproof;

The waterproof kit 2 is cylindrical and one end is open. The bottom wall of the waterproof kit 2 has a through hole for the cable body 1 to pass through along its own axis. The outer diameter is 10cm, and the outer peripheral surface of the waterproof kit 2 is provided with external threads. The inner diameter of the other waterproof kit 2 is 10 cm, and the inner peripheral surface of the waterproof kit 2 is provided with an inner thread, and the two waterproof kits 2 are connected by threads to complete the splicing operation. A locking member 4 is installed on the outer bottom wall of the waterproof kit 2. The locking member 4 includes a rubber ring 42 fixed on the outer bottom wall of the waterproof kit 2 and a hoop 41 for locking the outer side of the rubber ring 42. The rubber ring 42 is pressed against the cable body 1 On the outer peripheral surface, the axis of the rubber ring 42 coincides with the through hole, and the hoop 41 is locked by bolts, so as to achieve the purpose of fixing the cable body 1 and the cable body 1, and also form a sealing layer at the opening of the through hole. It is beneficial to improve the waterproof performance of the waterproof kit 2 . The copper wire connector 3 includes two sleeves 31 and a plurality of soft copper wires 32 connecting the two sleeves 31 , and the two sleeves 31 are sheathed over the wire core 11 of the cable body 1 and fixed by crimping. Thus, the purpose of reliable connection of the two cable bodies 1 is achieved.

Referring to FIGS. 3 and 4 , a first annular groove 21 is formed on the inner side wall of the through hole, and the first annular groove 21 surrounds the inner side wall of the through hole. A rubber ring 6 is placed in the first annular groove 21 , and two end surfaces of the rubber ring 6 abut with two inner side walls of the first annular groove 21 respectively. When the cable body 1 passes through the through hole, the rubber ring 6 is sleeved on the outer peripheral surface of the cable body 1. The arrangement of the rubber ring 6 forms a second sealing layer on the inner side wall of the through hole, which is beneficial to further improve the waterproof kit. 2 waterproof performance.

3 and 5, a drive ring 83 is installed in the first annular groove 21, the drive ring 83 is sleeved on the outside of the rubber ring 6, the axis of the drive ring 83 coincides with the axis of the rubber ring 6, and the outside of the drive ring 83 is connected to the first The bottom wall of the annular groove 21 abuts. Several driving teeth 831 are fixed on the inner side of the driving ring 83 , and the several driving teeth 831 are distributed at equal intervals around the axis of the driving ring 83 . Several rubber blocks 61 are fixed on the outside of the rubber ring 6 , and the several rubber blocks 61 are distributed at equal intervals around the axis of the rubber ring 6 . The plurality of driving teeth 831 and the plurality of rubber blocks 61 are staggered at intervals, and the two end faces of the rubber ring 6 are provided with a plurality of guide grooves 63 , and the plurality of guide grooves 63 correspond to the plurality of rubber blocks 61 one-to-one. The extension lines of the guide grooves 63 in the length direction meet at one point of the axis of the through hole. The two inner side walls of the first annular groove 21 are fixed with a plurality of limit blocks 211 respectively located in the guide grooves 63 . The limiting block 211 is cylindrical. The outer peripheral surface of the waterproof kit 2 is provided with an operation groove 22 which communicates with the first annular groove 21, and an operating rod 81 extending into the operation groove 22 is fixed on the outside of the drive ring 83. The operation groove 22 extends in the tangential direction of the outer peripheral surface of the waterproof kit 2, Thereby, a movement space is provided for the operation lever 81 to swing around the axis of the waterproof kit 2 . When the tooth tops of the plurality of driving teeth 831 and the ends of the plurality of rubber blocks 61 facing the driving ring 83 are pressed one by one, the inner side of the rubber ring 6 is pressed against the outer peripheral surface of the cable body 1, thereby further improving the sealing performance of the rubber ring 6. It is beneficial to improve the waterproof performance of the waterproof kit 2 .

4 and 5 , a second annular groove 23 is formed on the outer peripheral surface of the waterproof casing 2 , and the second annular groove 23 surrounds the outer peripheral surface of the waterproof casing 2 . The second annular groove 23 is rotatably connected to the outer ring 8 that closes the opening of the operating groove 22 . The outer ring 8 , the operating rod 81 and the driving ring 83 jointly pass through a material injection hole 811 , and both ends of the material injection hole 811 communicate with the outer side of the outer ring 8 and the inner side of the driving ring 83 respectively. The opening of the injection hole 811 at the inner side of the driving ring 83 is located between the two driving teeth 831 . A plurality of connecting holes 62 are arranged at intervals from a plurality of rubber blocks 61 . The inner side wall of the rubber ring 6 is provided with a third annular groove 64 , and the third annular groove 64 surrounds the inner side wall of the rubber ring 6 and communicates with a plurality of connecting holes 62 . When the tooth tops of the plurality of driving teeth 831 are pressed against the ends of the plurality of rubber blocks 61 facing the driving ring 83 one by one, the injection hole 811 is directly opposite to one of the connecting holes 62 . In step 7, when waterproofing the waterproof kit 2, the installer injects resin into the injection hole 811, and the resin enters the third annular groove 64 through the connecting hole 62. After the resin is cured, the resin is in the third annular groove 64. A third resealing layer is formed in the groove 64 to further improve the waterproof performance of the waterproof kit 2 . The width of the rubber block 61 is smaller than the width of the rubber ring 6, so that when the driving teeth 831 are pressed against the rubber block 61, the resin can flow from both sides of the rubber block 61, so that the resin can fill the inner space of the entire waterproof kit 2, thereby improving the The waterproof performance of the waterproof kit 2.

4 and 5, the outer peripheral surface of the waterproof kit 2 has a connecting groove 24 that communicates with the first annular groove 21. The connecting groove 24 extends along the tangential direction of the outer peripheral surface of the waterproof kit 2. The outside of the drive ring 83 is fixed with a connecting rod 82 that extends into the connecting groove 24 and is fixedly connected to the outside of the drive ring 83 . , the outer ring 8 , the connecting rod 82 and the driving ring 83 pass through the air hole 821 . It is beneficial to keep the pressure in the waterproof kit 2 in balance with the atmospheric pressure when the resin is injected into the injection hole 811, which is beneficial to increase the injection rate of the resin. The outer ring 8 is fitted with two rubber stoppers 7 . The two rubber plugs 7 are used to block the openings of the injection hole 811 and the air hole 821 respectively. After the injection is completed, the injection hole 811 and the air hole 821 are blocked by the rubber plug 7, which reduces the probability of resin leakage and is beneficial to Curing and molding of resin.

The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered within the scope of the present application. Inside.

Claims (6)

1. A construction method for fast connecting cables is characterized in that: the method comprises the following steps:

the method comprises the following steps: prefabricating a waterproof external member (2) and a copper wire connecting piece (3);

step two: installation of waterproof kit (2): preparing two mutually matched waterproof external members (2), and respectively sleeving the two waterproof external members (2) at the end parts of the two cable bodies (1);

step three: the cable body (1) is subjected to opening treatment: cutting off the insulating layers at the end parts of the two cable bodies (1) to expose the wire cores (11) of the cable bodies (1);

step four: crimp cable body (1): respectively fixing the wire cores (11) of the two cable bodies (1) at two ends of the copper wire connecting piece (3) in a crimping manner;

step five: insulating treatment of the cable body (1): the two wire cores (11) and the copper wire connecting piece (3) are wound and fixed at the exposed positions by insulating tapes (5);

step six: a spliced waterproof sleeve (2);

step seven: the waterproof sleeve (2) is subjected to sealing and waterproof treatment;

the waterproof external members (2) are cylindrical, one end of each waterproof external member is provided with an opening, a through hole for the cable body (1) to pass through penetrates through the bottom wall of each waterproof external member (2), the openings of the two waterproof external members (2) are opposite to each other, the inner peripheral surface of one waterproof external member (2) is in threaded connection with the outer peripheral surface of the other waterproof external member (2), and the outer bottom wall of each waterproof external member (2) is provided with a locking member (4) for locking the cable body (1);

a first annular groove (21) is formed in the inner side wall of the through hole, a rubber ring (6) is arranged in the first annular groove (21), and when the cable body (1) penetrates through the through hole, the rubber ring (6) is sleeved on the outer peripheral surface of the cable body (1);

a driving ring (83) is arranged in the first annular groove (21), the driving ring (83) is sleeved outside the rubber ring (6), a plurality of driving teeth (831) distributed circumferentially are arranged on the inner side of the driving ring (83), a plurality of rubber blocks (61) distributed circumferentially are arranged on the outer side of the rubber ring (6), the plurality of driving teeth (831) and the plurality of rubber blocks (61) are arranged in a staggered manner, a plurality of guide grooves (63) are respectively formed in two end faces of the rubber ring (6), extension lines of the length directions of the plurality of guide grooves (63) intersect at one point of the axis of the through hole, and a plurality of limiting blocks (211) respectively positioned in the plurality of guide grooves (63) are arranged on two inner side walls of the first annular groove (21); waterproof external member (2) outer peripheral face is opened there is communicating operation groove (22) with first ring channel (21), drive ring (83) outside is provided with action bars (81) that are located operation groove (22), and is a plurality of when the tooth top of drive tooth (831) and a plurality of rubber block (61) support tightly one by one towards the one end of drive ring (83), rubber ring (6) inboard support tight cable body (1) outer peripheral face.

2. The construction method for fast connecting cables according to claim 1, characterized in that: the outer peripheral surface of the waterproof external member (2) is provided with a second annular groove (23), the second annular groove (23) is rotatably connected with an outer ring (8) for sealing an opening of the operation groove (22), and the inner side of the outer ring (8) is fixedly connected with one end of an operation rod (81) far away from the driving ring (83).

3. The construction method for fast connecting cables according to claim 2, characterized in that: the outer ring (8), the operating rod (81) and the driving ring (83) jointly penetrate through a material injection hole (811), and two ends of the material injection hole (811) are respectively communicated with the outer side of the outer ring (8) and the inner side of the driving ring (83).

4. The construction method for fast connecting cables according to claim 3, characterized in that: the rubber ring (6) is provided with a plurality of connecting holes (62), and the connecting holes (62) are communicated with the inner side of the rubber ring (6) and the outer side of the rubber ring (6).

5. The construction method for fast connecting cables according to claim 4, characterized in that: a third annular groove (64) is formed in the inner side of the rubber ring (6), and the bottom wall of the third annular groove (64) is communicated with the connecting holes (62).

6. The construction method for fast connecting cables according to claim 5, characterized in that: waterproof external member (2) outer peripheral face is opened have with communicating spread groove (24) of first ring channel (21), drive ring (83) outside be provided with be located spread groove (24) and with drive ring (83) outside fixed connection's connecting rod (82), outer ring (8), connecting rod (82) and drive ring (83) run through jointly have gas pocket (821), the outside of gas pocket (821) both ends intercommunication outer ring (8) respectively and the inboard of drive ring (83), outer ring (8) are provided with and seal rubber buffer (7) of gas pocket (821).

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