CN207150060U - Low-voltage cable joint prosthetic device - Google Patents

Abstract

The utility model relates to the field of cable maintenance, in particular to a repairing device for low-voltage cable joints, which includes a repairing shell, the repairing shell includes a repairing cylinder with openings at both ends, and two end caps detachably connected to the two ends of the repairing cylinder, and the cylinder wall of the repairing cylinder There are glue injection holes on the top, and the two end caps are equipped with wire passage ports. After the repair cylinder is connected with the end caps, a cable passage cavity with openings at both ends and closed sides is formed. The inner diameter of the passage cavity is larger than that to be repaired by the joint. The outer diameter of the cable, when in use, cover the repair tube on the cable joint, and the two end caps are respectively set on the cable insulation sheath at both ends of the joint and sealed with it, and the viscous liquid repair glue is injected through the glue injection hole. After the repair glue is solidified, it will form the repair layer at the cable joint together with the repair shell; the utility model has the following advantages: simple structure, convenient use, good waterproof and moisture-proof performance, and high strength and not easy to break.

Description

Low-voltage cable joint repair device

technical field

The utility model relates to the field of cable maintenance, in particular to a low-voltage cable joint repair device.

Background technique

When repairing the damage of low-voltage cable joints and joints, maintenance workers often use traditional methods to wrap and seal the joints with insulating tape. After a long period of operation and maintenance, it was found that the above-mentioned traditional method has some disadvantages. First, the cable insulation tape cannot be in close contact with the outer sheath layer. The cable runs in a humid environment for a long time, and the distance between the wound insulation tape and the outer sheath Water and moisture can easily enter the gap, resulting in the failure of the insulation at the repaired position and causing a safety hazard to the cables in operation; secondly, the winding insulation tape has poor strength and is easy to be damaged during the construction process, resulting in a decrease in insulation performance and easy water ingress Be affected with damp, cause potential safety hazard equally.

Utility model content

In order to overcome the above deficiencies in the prior art, the task of this utility model is to provide a low-voltage cable joint repair device with simple structure, convenient use and good waterproof effect.

The utility model task is realized through the following technical solutions:

The low-voltage cable joint repairing device includes a repairing shell, which includes a repairing cylinder with two ends open, and two end caps detachably connected to the two ends of the repairing cylinder. The wall of the repairing cylinder is provided with a glue injection hole. Each end cap is equipped with a cable passage port. After the repair tube is connected with the end cap, a cable passage cavity with openings at both ends and a closed side is formed. The inner diameter of the passage cavity is larger than the outer diameter of the cable to be repaired by the joint. When in use, The repair cylinder covers the two cable joints, and the two end caps are respectively sleeved on the cable insulation sheaths at both ends of the joints and sealed with them.

Preferably, the two ends of the repairing cylinder are provided with internal or external thread structures, and the end cap is provided with external or internal thread structures that match with it, and the thread structure of the end cap and the wire-passing port are also provided. Embedded with an elastic rubber sleeve, when the end cap is screwed to the repair cylinder, the elastic rubber sleeve is tightly attached to the inner circumference of the end cap and the cable insulation sheath under the extrusion deformation of the repair cylinder.

Preferably, the inner wall between the threaded structure of the end cap and the wire passage opening is provided with a slot, and the elastic rubber sleeve is embedded in the slot, and/or, the slot is located in the inner wall of the elastic rubber sleeve. At least one end is also provided with a clasp to prevent the elastic rubber sleeve from slipping off.

Preferably, the repair housing further includes a hole plug for sealing the glue injection hole.

Preferably, ventilation holes are also provided on the cylinder wall of the repair cylinder.

Preferably, the material of the repair cylinder is a bendable elastic insulating material.

Preferably, the low-voltage cable joint repair device further includes a metal crimping tube for crimping two cable joints.

Preferably, the device for repairing low-voltage cable joints further includes repairing glue for filling the wire passage cavity, the repairing glue is in a viscous liquid state before use, and will solidify into a solid state after use.

The beneficial effect of using the repairing device for low-voltage cable joints of the utility model is: when the repairing cylinder is in use, the cable joints are covered inside, and the viscous liquid repairing glue can be injected into the repairing cylinder through the glue injection hole on it, and the repairing glue is solidified. The repair shell together constitutes the repair layer at the cable joint. The repair layer is in close contact with the cable outer sheath without gaps, has good waterproof and moisture-proof performance, and has high strength and is not easy to be damaged. After the cable is repaired, it can run effectively for a long time and extend the service life of the cable; The barrel is made of bendable elastic insulating material, which is convenient for the repair of the cable joint at the bend erection.

Description of drawings

Fig. 1 is the structural representation of the utility model low-voltage cable joint repairing device;

Fig. 2 is a schematic diagram of an exploded structure of Fig. 1;

Fig. 3 is a schematic cross-sectional structure diagram of the end cap in Fig. 1;

Fig. 4 is the structural representation of two low-voltage cable joints to be repaired in the embodiment;

Fig. 5 is a schematic diagram of the use state of the low-voltage cable joint repair device of the present invention;

Among them, 1-repair cylinder, 11-glue injection hole, 12-external thread structure, 13-hole plug, 14-venting hole, 21, 22-end cover, 23-wire opening, 24-internal thread structure, 25- Elastic rubber sleeve, 26-embedded groove, 27-clip ring, 3-metal crimping tube, 41-first cable, 42-second cable.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Figures 1-5, the low-voltage cable joint repair device includes a repair shell, and the repair shell includes a repair cylinder 1 with openings at both ends, and two end caps 21, 22 detachably connected to both ends of the repair cylinder 1, The wall of the repairing cylinder 1 is provided with a glue injection hole 11, and the end caps 21 and 22 are provided with a cable passage port 23. After the repairing cylinder 1 is connected with the end caps 21 and 22, a cable passage with open ends and closed sides is formed. Cavity, the inner diameter of the wire-passing cavity is greater than the outer diameter of the cable to be repaired by the joint; when in use, the two cables to be connected are inserted into the wire-passing cavity from the wire-passing openings 23 on the end caps 21 and 22 at both ends of the repair cylinder 1 Inside, the repair cylinder 1 covers the two cable joints, and the two end caps 21, 22 are respectively set on the cable insulation sheaths at both ends of the cable joints and are sealed connected with them. Through the glue injection hole 11 of the repair cylinder 1, the The viscous liquid repair glue is injected into the repair cylinder 1. After the repair glue solidifies, it forms the repair layer at the cable joint together with the repair shell. The repair layer is in close contact with the cable outer sheath without gaps, and has good waterproof and moisture-proof performance, and has high strength and is not easy to repair. Damage, the cable can run effectively for a long time after repairing, prolonging the service life of the cable.

As a preferred embodiment, both ends of the repair cylinder 1 are provided with external thread structures 12, and the end caps 21, 22 are provided with internal thread structures 24 that match with them. Elastic rubber sleeves 25 are also embedded between the wire ports 23. When the end caps 21, 22 are screwed to the repair cylinder 1, the elastic rubber sleeves 25 are tightly attached to the inner circumferences of the end caps 21, 22 under the extrusion deformation of the repair cylinder 1. Cable insulation sheath, and realize sealing, elastic rubber sleeve 25 preferably silica gel sleeves.

As a preferred embodiment, a slot 26 is provided on the inner wall between the internal thread structure 24 of the end cap and the cable opening 23, and the elastic rubber sleeve 25 is embedded in the slot 26, and the slot 26 can be To prevent the elastic rubber sleeve 25 from sliding and shifting, the two ends of the elastic rubber sleeve 25 in the slot 26 are also provided with snap rings 27 to prevent the elastic rubber sleeve 25 from slipping, so that the elastic rubber sleeve 25 can be further positioned to prevent the elastic rubber sleeve 25 from slipping. The rubber sleeve 25 slides and shifts.

As a preferred embodiment, the repair housing further includes a hole plug 13 for sealing the glue injection hole 11 .

As a preferred embodiment, the wall of the repair cylinder 1 is also provided with air holes 14 .

As a preferred embodiment, the material of the repair cylinder 1 is a bendable elastic insulating material, which facilitates the repair of the cable joint at the bend erection.

As a preferred embodiment, the low-voltage cable joint repair device further includes a metal crimping tube 3 for crimping two cable joints.

As a preferred embodiment, the device for repairing low-voltage cable joints further includes repairing glue for filling the cable passing cavity, and the repairing glue is in a viscous liquid state before use and solidifies into a solid state after use.

Using the aforementioned low-voltage cable joint repairing device, repairing the joints of the first cable 41 and the second cable 42 includes the following steps:

①Put the repair cylinder 1 and one end cap 21 on the insulating sheath at the joint of the first cable 41, put the other end cap 22 on the insulating sheath at the joint of the second cable 42, put the two cables Butt together at the joints of the two cables, use the metal crimping tube 3 to crimp and fix them together, move the repair tube 1 to cover the joints of the two cables, and then thread the two end caps 21, 22 to the repair tube 1 Together, the two end caps 21, 22 are hermetically connected to the insulating sheaths of the two cables respectively;

②Inject viscous liquid repair glue into the cavity between the repair shell and the cable through the glue injection hole 11 until the cavity is filled with repair glue;

③The viscous liquid repair glue in the cavity is solidified into a solid repair glue, which together with the repair shell constitutes the repair layer at the cable joint.

The repair cylinder 1 covers the cable joint inside, and injects viscous liquid repair glue into the repair cylinder 1. After the repair glue solidifies, it forms a repair layer at the cable joint together with the repair shell, and the repair layer is in close contact with the cable outer sheath. No gaps, good waterproof and moisture-proof performance, high strength and not easy to break, which solves the problem that the insulating tape is easily damaged when exposed to the outside, and also solves the problem of water and moisture entering due to poor sealing effect of the insulating tape.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also cover the above-mentioned utility models without departing from the concept of the utility model. Other technical solutions formed by any combination of technical features or equivalent features. For example, a technical solution formed by replacing the above-mentioned features with technical features with similar functions disclosed in (but not limited to) this application.

Claims (8)

1. low-voltage cable joint prosthetic device, it is characterised in that including repairing shell, the reparation shell is opened including a both ends Mouthful reparations cylinder and be detachably connected on two end caps at reparation cylinder both ends, the barrel for repairing cylinder is provided with hole for injecting glue, two Line mouth was equipped with end cap, repairs after cylinder is connected with end cap and forms both ends open, the cable passing cavity of side-closed, cross line The internal diameter of cavity is more than the external diameter for treating that joint repairs cable, is covered in when repairing cylinder use at two cable connectors, two end caps It is respectively fitted over during use on the cable insulation jacket at joint both ends and is tightly connected therewith.

2. low-voltage cable joint prosthetic device according to claim 1, it is characterised in that the both ends for repairing cylinder are provided with interior Screw thread or external thread structure, the end cap are provided with external screw thread with matching or female thread structure, the helicitic texture of end cap Elastic rubber sleeve is also embedded between line mouth excessively, when end cap is threadedly coupled with repairing cylinder, elastic rubber sleeve is repairing the extruding of cylinder It is close to end cap inner circumferential and cable insulation jacket under deformation.

3. low-voltage cable joint prosthetic device according to claim 2, it is characterised in that the helicitic texture and mistake of the end cap Inwall between line mouth is provided with caulking groove, and the elastic rubber sleeve is embedded in the caulking groove, and/or, it is located at bullet in the caulking groove Property gum cover at least one end be additionally provided with prevent elastic rubber sleeve slip snap ring.

4. according to any low-voltage cable joint prosthetic devices of claim 1-3, it is characterised in that the reparation shell also wraps Include a stopple for being used to seal the hole for injecting glue.

5. according to any low-voltage cable joint prosthetic devices of claim 1-3, it is characterised in that the barrel for repairing cylinder On be additionally provided with air-vent.

6. according to any low-voltage cable joint prosthetic devices of claim 1-3, it is characterised in that the material for repairing cylinder For bent elastic insulating material.

7. according to any low-voltage cable joint prosthetic devices of claim 1-3, it is characterised in that the low-voltage cable joint Prosthetic device also includes being used for the metal crimp pipe for crimping two cable connectors.

8. according to any low-voltage cable joint prosthetic devices of claim 1-3, it is characterised in that the low-voltage cable joint Prosthetic device also includes being used to fill the repair sheets for crossing line cavity, is viscous fluid before the repair sheets use, after use Solid-state can be solidified as.