Emergency lossless connecting device for power cable

Abstract

The invention discloses a power cable emergency lossless connecting device which comprises an insulating shell, a clamping piece is installed in the insulating shell, and a fastening structure is arranged on the outer side of the clamping piece. The clamping piece comprises a mounting ring, an arc-shaped plate is fixedly arranged on one side of the mounting ring, and a tightening strip is fixedly connected to one end of the arc-shaped plate. The two clamping pieces are clamped and fixed to the wiring ends of two cables through the pliers, wire cores of the wiring ends of the cables extend into the tightening strips, the wire cores of the wiring ends of the cables are fixed together in a crossed mode through the fastening structures, and meanwhile the two insulating shells and the limiting rings are matched, so that the wiring ends of the cables can be clamped and fixed. In the future, the two clamping pieces fixed with the cable are limited and fixed, and then the wiring end of the cable is sealed and fixed in the insulating shell, so that the thickness of the wiring end of the cable does not need to be kept constant, even if the overall thicknesses of wire cores of the wiring end of the cable are different, tight connection can be carried out, the operation difficulty of workers is reduced, and the application range is enlarged.

Description

Technical Field

[0001] The invention relates to the technical field of cable connection, and in particular to an emergency lossless connection device for power cables. Background Art

[0002] In the power system, emergency repair and replacement of cables is an important part of ensuring the continuity of power supply. Traditional cable connection methods often have problems such as complex installation, low efficiency, and easy damage to cables, especially in emergency situations.

[0003] A conductive segmented cable connection assembly with a patent publication number of CN215817467U is retrieved, comprising: a wire body, a connecting mechanism and a fixing mechanism, wherein the wire body comprises a wire core and a wire sheath for protecting the wire core; the connecting mechanism comprises a connecting plate fixed to the outside of the wire core, a fixing thorn connected to the inside of the connecting plate to fix the wire core, a fixing edge arranged on the side of the connecting plate and an external thread arranged on the outside of the connecting plate; the fixing mechanism comprises a fixing sleeve sleeved on the outside of the wire sheath, a connecting port provided in the fixing sleeve for sleeved the connecting plate and an internal thread arranged on the inner wall of the connecting port to connect the external thread. In this utility model, the wire body can be connected more stably through the connecting mechanism, preventing the wire body from loosening due to displacement after long-term use, thereby avoiding the occurrence of poor contact, and it is easy to install and use, and convenient for subsequent use.

[0004] The inventors discovered the following problems when implementing the above technology: the connecting mechanism is composed of two connecting plates, and the connecting plates are composed of a semi-circular tube structure, and are relatively hard and cannot be deformed. Therefore, when connecting the ends of the cables, it is difficult to achieve a tight pressing effect on the connecting cables. Although fixing thorns are provided, the thickness of the cable terminal needs to be kept constant so that the connecting mechanism can tightly press and fix the cable, and the scope of use is small. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an emergency lossless connection device for power cables to solve the problems of the above-mentioned technology that the thickness of the cable terminal needs to be kept constant during connection so that the connecting mechanism can tightly press and fix the cable, and the scope of use is small.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an emergency lossless connection device for power cables, comprising two insulating shells for isolating the cables from the outside, openings being provided at both ends of the insulating shells, a clamping member for connecting a cable joint being movably installed inside the insulating shells, and a fastening structure for tightening the cable joint being provided on the outside of the clamping member;

[0007] The clamping member comprises a mounting ring fitted with the inner wall of the insulating shell, an arc plate is fixedly arranged on one side of the mounting ring, and a plurality of equidistantly arranged tightening strips are fixedly connected to one end of the arc plate away from the mounting ring.

[0008] Preferably, the connecting end of the insulating housing is provided with a mutually matching connecting thread ring, and the outer end of the insulating housing is provided with a port. In this way, the connecting ends of the two insulating housings can be tightly connected together by providing the connecting thread ring, thereby connecting the two cable terminals inside the two insulating housings together.

[0009] Preferably, a plugging cap is provided on the outside of the port, and mutually matching threads are provided on the inside of the plugging cap and the outside of the port, and a hole is provided in the center of the plugging cap for the cable to pass through. In this way, the hole is provided to facilitate the cable to pass through the plugging cap, and the plugging cap is provided to facilitate the sealing and blocking of the port at the end of the insulating shell, and the sealing effect between the plugging cap and the port can be enhanced by providing a sealing ring between the plugging cap and the port. As a preferred embodiment, the hole of the plugging cap can be filled with insulating glue, and the hole of the plugging cap can be sealed by using the insulating glue, so that the inside of the insulating shell maintains a sealing effect.

[0010] Preferably, a sealing ring is provided between the blocking cap and the port.

[0011] Preferably, the inner walls of the two insulating shells are respectively provided with two symmetrically arranged limiting rings, and the mounting ring is in close contact with the limiting rings. As a preferred embodiment, the overall length of the two clamping members after being combined is equal to the distance between the two limiting rings, and the clamping member can be fixed between the two limiting rings by providing the limiting rings.

[0012] Preferably, the fastening structure includes a fastening groove and a fastening strip, and the fastening groove and the fastening strip are respectively fixed on both sides of the arc-shaped plate, and the outer side of the fastening strip and the inner side of the fastening groove are provided with corresponding fastening teeth. As a preferred embodiment, the fastening teeth on the fastening strip and the fastening teeth in the fastening groove are engaged with each other, and the structure is consistent with that of the plastic strap, and the fastening strip can be firmly fixed in the fastening groove by the fastening teeth to prevent the fastening strip from being separated from the fastening groove.

[0013] Preferably, the outer end of the insulating shell is filled with a water-insulating material. As a preferred embodiment, the water-insulating material can be a water-absorbing resin, and the water-insulating material is filled between the port and the limiting ring to absorb the moisture in the insulating shell, so that the connection device is kept dry.

[0014] Preferably, the clamping member is made of copper. This arrangement enables the clamping member to be clamped and shaped by pliers, so that the clamping member can be clamped and fixed on the cable.

[0015] The present invention provides an emergency lossless connection device for power cables, which has the following beneficial effects:

[0016] The present invention clamps and fixes two clamping members at the wiring terminals of two cables by using pliers, and extends the wire cores of the cable wiring terminals into the tightening strips, and cross-fixes the wire cores of the cable wiring terminals together by using the fastening structure, and simultaneously utilizes the cooperation of two insulating shells and limiting rings to limit and fix the two clamping members with the cables in the future, and then seals and fixes the wiring terminals of the cables inside the insulating shells. The present invention does not need to keep the thickness of the cable wiring terminals constant, and even if the overall thickness of the wire cores of the cable wiring terminals is different, a tight connection can be performed, thereby reducing the operating difficulty of the workers and increasing the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention;

[0018] Figure 2 It is a schematic diagram of the main internal structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the internal structure of the insulating housing of the present invention;

[0020] Figure 4 This is a diagram of the two clamping members of the present invention in a coordinated use state;

[0021] Figure 5 It is a schematic structural diagram of the clamping member of the present invention;

[0022] Figure 6 for Figure 5 A schematic cross-sectional view of

[0023] Figure 7 It is a schematic diagram of the use state of the present invention.

[0024] In the figure:

[0025] 1. Insulating shell; 101. Connecting threaded ring; 102. Port; 2. Limiting ring; 3. Sealing ring; 4. Sealing cap; 5. Clamping piece; 501. Mounting ring; 502. Arc plate; 503. Tightening strip; 6. Fastening structure; 601. Fastening groove; 602. Fastening strip; 7. Waterproof material. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-7 The present invention provides a technical solution: an emergency lossless connection device for power cables, comprising two insulating shells 1 for isolating the cables from the outside, openings being arranged at both ends of the insulating shells 1, a clamping member 5 for connecting a cable joint being movably installed inside the insulating shells 1, and a fastening structure 6 for tightening the cable joint being arranged outside the clamping member 5;

[0028] The clamping member 5 comprises a mounting ring 501 fitted with the inner wall of the insulating housing 1 , a curved plate 502 is fixedly provided on one side of the mounting ring 501 , and a plurality of equidistantly arranged tightening strips 503 are fixedly connected to one end of the curved plate 502 away from the mounting ring 501 .

[0029] In this embodiment, the connecting end of the insulating housing 1 is provided with a mutually matching connecting thread ring 101. As a preferred embodiment, the connecting thread ring 101 is an annular structure, and the inside and outside of the two annular structures are respectively provided with mutually matching threads. The two connecting thread rings 101 can be tightly connected together through thread matching, and the outer end of the insulating housing 1 is provided with a port 102. In this way, by providing the connecting thread ring 101, the connecting ends of the two insulating housings 1 can be tightly connected together, and then the two cable terminals inside the two insulating housings 1 can be connected together.

[0030] In this embodiment, a plugging cap 4 is provided on the outside of the port 102, and mutually matching threads are provided on the inside of the plugging cap 4 and the outside of the port 102, and a hole for the cable to pass through is provided in the center of the plugging cap 4. In this way, the cable can pass through the plugging cap 4 conveniently by providing the hole, and the port 102 at the end of the insulating housing 1 can be sealed conveniently by providing the plugging cap 4, and the sealing effect between the plugging cap 4 and the port 102 can be enhanced by providing the sealing ring 3 between the plugging cap 4 and the port 102. As a preferred embodiment, the hole of the plugging cap 4 can be filled with insulating glue, and the hole of the plugging cap 4 can be sealed by the insulating glue, so that the inside of the insulating housing 1 maintains a sealing effect.

[0031] In this embodiment, a sealing ring 3 is provided between the blocking cap 4 and the port 102 .

[0032] In this embodiment, two symmetrically arranged limiting rings 2 are respectively arranged on the inner walls of the two insulating shells 1, and the mounting ring 501 is in close contact with the limiting rings 2. As a preferred embodiment, the overall length dimension of the two clamping members 5 after being combined is equal to the distance dimension between the two limiting rings 2, and the limiting rings 2 can be arranged to limit and fix the clamping member 5 between the two limiting rings 2 to prevent the two clamping members 5 from separating.

[0033] In this embodiment, the fastening structure 6 includes a fastening groove 601 and a fastening strip 602, and the fastening groove 601 and the fastening strip 602 are respectively fixed on both sides of the arc plate 502, and the outer side of the fastening strip 602 and the inner side of the fastening groove 601 are provided with corresponding fastening teeth. As a preferred embodiment, the fastening teeth on the fastening strip 602 and the fastening teeth in the fastening groove 601 are engaged with each other, and its structure is consistent with that of the plastic strap, and the fastening strip 602 can be firmly fixed in the fastening groove 601 by the fastening teeth to prevent the fastening strip 602 from being separated from the fastening groove 601.

[0034] In this embodiment, the outer end of the insulating housing 1 is filled with a waterproof material 7. As a preferred embodiment, the waterproof material 7 can be a water-absorbing resin. By filling the waterproof material 7 between the port 102 and the limiting ring 2, the waterproof material 7 absorbs the moisture in the insulating housing 1, so that the connection device is kept dry. As a preferred embodiment, the waterproof material 7 is formed into a structure that is close to the inner wall of the insulating housing 1 and has a through hole in the middle through a mesh structure, so that the cable can pass through the waterproof material 7.

[0035] In this embodiment, the clamping member 5 is made of copper. With such a configuration, the clamping member 5 can be clamped and shaped by pliers, so that the clamping member 5 can be clamped and fixed on the cable.

[0036] When in use, the rubber coating of the two cable terminals is stripped to fully expose the wire cores of the cable terminals, the cable terminals are passed through the plugging cap 4 and the sealing ring 3 in sequence, and through the insulating housing 1 from the port 102, and then the cable terminals are extended into the clamping member 5 from the mounting ring 501, and the wire cores of the cable terminals are aligned with the ends of the tightening strips 503, and the mounting ring 501 is squeezed with pliers to make the mounting ring 501 tightly clamped in the unstripped position of the cable terminals, the two clamping members 5 are staggered and intersected, and the tightening strips 503 are extended into the fastening strips 602 on the other clamping member 5, so that the exposed wire cores of the two cable terminals are staggered and intersected. As a preferred embodiment, in order to make the wire cores more closely connected, the staggered and intersecting wire cores can be twisted together. Through the cooperation of the fastening strip 602 and the fastening groove 601, the fastening structure 6 is tightened, and the tightening strip 503 is contracted toward the arc plate 502 on the other clamping member 5. Through the extrusion cooperation of the tightening strip 503 and the arc plate 502, the wire cores of the two cable terminals are tightly fitted together, and the two insulating shells 1 are tightly combined together by connecting the threaded ring 101. The clamping member 5 is limited and fixed by the limiting ring 2 in the insulating shell 1 to avoid separation of the two clamping members 5. The sealing cap 4 and the port 102 of the insulating shell 1 are combined with each other through threaded cooperation, and the gap between the hole on the sealing cap 4 and the cable is filled with insulating glue to completely isolate and seal the port 102 of the insulating shell 1 from the outside to avoid rainwater infiltration, thereby completing the cable wiring process.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An emergency lossless connection device for power cables, characterized in that: The invention comprises two insulating shells (1) for isolating the cable from the outside, the two ends of the insulating shells (1) are provided with openings, a clamping member (5) for connecting the cable joint is movably installed inside the insulating shells (1), and a fastening structure (6) for tightening the cable joint is provided on the outside of the clamping member (5); The clamping member (5) comprises a mounting ring (501) fitted with the inner wall of the insulating housing (1), an arc-shaped plate (502) being fixedly arranged on one side of the mounting ring (501), and a plurality of equidistantly arranged tightening strips (503) being fixedly connected to one end of the arc-shaped plate (502) away from the mounting ring (501).

2. The power cable emergency lossless connection device according to claim 1, characterized in that: The connecting end of the insulating shell (1) is provided with a connecting thread ring (101) that cooperates with each other, and the outer end of the insulating shell (1) is provided with a port (102).

3. The power cable emergency lossless connection device according to claim 2, characterized in that: A blocking cap (4) is arranged on the outer side of the port (102); the inner side of the blocking cap (4) and the outer side of the port (102) are provided with mutually matching threads; and a hole for the cable to pass through is provided at the center of the blocking cap (4).

4. The power cable emergency lossless connection device according to claim 3, characterized in that: A sealing ring (3) is provided between the blocking cap (4) and the port (102).

5. The power cable emergency lossless connection device according to claim 1, characterized in that: The inner walls of the two insulating shells (1) are respectively provided with two symmetrically arranged limiting rings (2), and the mounting ring (501) is tightly attached to the limiting rings (2).

6. The power cable emergency lossless connection device according to claim 1, characterized in that: The fastening structure (6) comprises a fastening groove (601) and a fastening strip (602), and the fastening groove (601) and the fastening strip (602) are respectively fixed on two sides of the arc-shaped plate (502), and the outer side of the fastening strip (602) and the inner side of the fastening groove (601) are provided with correspondingly matched fastening teeth.

7. The power cable emergency lossless connection device according to claim 1, characterized in that: The outer end of the insulating shell (1) is filled with a water-proof material (7).

8. The power cable emergency lossless connection device according to claim 1, characterized in that: The clamping piece (5) is made of copper.

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