CN210477851U - Novel cable fusion splice connection device - Google Patents
Novel cable fusion splice connection device Download PDFInfo
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- CN210477851U CN210477851U CN201921263663.7U CN201921263663U CN210477851U CN 210477851 U CN210477851 U CN 210477851U CN 201921263663 U CN201921263663 U CN 201921263663U CN 210477851 U CN210477851 U CN 210477851U
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Abstract
The utility model discloses a novel cable fusion joint connecting device, which relates to the technical field of cable connection, and comprises a forming die, a first double-layer insulation heat-shrinkable tube and a second double-layer insulation heat-shrinkable tube, wherein the first double-layer insulation heat-shrinkable tube and the second double-layer insulation heat-shrinkable tube are respectively sleeved on a first exposed section and a second exposed section; the forming die comprises a lower die and an upper die; a lower die cavity and an upper die cavity are respectively arranged between the lower die and the upper die, and the upper die cavity and the lower die cavity form a melting connection cavity; the upper die is provided with a melting cavity, and the bottom of the melting cavity is provided with a connecting channel connected with the melting connecting cavity. The utility model discloses a novel cable fusion joint connecting device, which adopts the fused welding material to flow into the fusion connecting cavity for connecting two conductor wire cores, thereby realizing the fusion connection of the two conductor wire cores; and meanwhile, the double-layer insulation heat-shrinkable tube is sleeved on the two conductor wire cores, and a good sealing and bonding effect is realized through the bonding layer on the inner layer of the double-layer insulation heat-shrinkable tube.
Description
Technical Field
The utility model relates to a cable junction technical field, concretely relates to novel cable fusion connects connection device.
Background
With the continuous development of the social industry, the demand for power is increasing, and a large number of power cables are used in the power transmission process, wherein the power cables are cable products used for transmitting and distributing high-power electric energy in a main line of a power system, and the power cables include power cables of 10-110 kV and above various voltage levels and various insulation levels.
Although the middle joint is the most prone to faults of the cable line, the middle joint is inevitably used in a power system, the cable of a general distribution network is generally coiled to about 600 meters at most, basically, one cable middle joint is used for every 600 meters of the cable line, and the use amount of the middle joint of the cable is quite large, so that the potential safety hazard of the operation of the cable line is just increased. And with the continuous promotion of urbanization process, every city has high-voltage overhead lines to change into cable lines, and the cable intermediate joints in the cable well (ditch) will be more and more in the future.
The existing cable connection methods are of two types, one is that the traditional clamping piece is riveted and fixed to connect the end parts of two power cables to realize connection and extension; however, the connection structure fixed by riveting is not firm in connection and easy to break, the conductivity of the connection part is low, the loss of a radial power plant is large, the loss of electric energy is large, and the current-carrying capacity of the power cable is seriously influenced. The other method is to connect the ends of two power cables by fusion connection, and the connection structure has the advantages of firm connection, high conductivity of the connection part and low electric energy loss, thereby becoming a preferable mode of cable connection.
The conventional method for fusing and connecting the cables is to fill welding material powder between conductor wire cores between two cables to be connected and then connect the two conductor wire cores together after heating and melting. However, since the welding powder has a gap in the filling process, after the welding powder is heated and melted into liquid, the gap is not enough to fill the space between the two conductor wire cores, and the welding powder needs to be continuously filled for many times, so that a good welding effect can be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel cable fusion joint connecting device, aiming at the prior art, the fused welding material is adopted to flow into a fusion connecting cavity for connecting two conductor wire cores, thereby realizing the fusion connection of the two conductor wire cores; and meanwhile, the double-layer insulation heat-shrinkable tube is sleeved on the two conductor wire cores, and a good sealing and bonding effect is realized through the bonding layer on the inner layer of the double-layer insulation heat-shrinkable tube.
The utility model discloses a following technical scheme realizes: the utility model provides a novel cable melting connects connecting device connects first cable and second cable, first cable includes first conductor sinle silk, and the one end that first conductor sinle silk and second conductor sinle silk are connected has the first exposed section that exposes outside, the second cable includes the second conductor sinle silk, and the two ends that second conductor sinle silk and second conductor sinle silk are connected have the exposed section of second outside. The connecting device comprises a forming die, a first double-layer insulating heat-shrinkable tube and a second double-layer insulating heat-shrinkable tube, wherein the first double-layer insulating heat-shrinkable tube and the second double-layer insulating heat-shrinkable tube are sleeved on the first exposed section and the second exposed section respectively; the forming die comprises a lower die and an upper die; a lower die cavity and an upper die cavity are respectively arranged between the lower die and the upper die, and the upper die cavity and the lower die cavity form a melting connection cavity; the upper die is provided with a melting cavity, and the bottom of the melting cavity is provided with a connecting channel connected with the melting connecting cavity; in the process of cable fusion connection, the first exposed section and the second exposed section respectively extend into the fusion connection cavity from two ends of the fusion connection cavity.
Preferably, the shape of the melting connection cavity formed by the upper die cavity and the lower die cavity is consistent with that of the conductor wire core, so that the connection part of the melting connection cavity is not excessively expanded, and the insulating layer, the shielding layer, the water-blocking layer and the like sleeved outside the conductor wire core can be conveniently recovered.
According to the technical scheme, the welding material powder is melted into liquid in the melting cavity and then enters the melting connection cavity through the connection channel, and the conductor wire cores of the first cable and the second cable are welded into a whole through the melted welding material, so that a gap-free connection part is formed, the conductivity of the connection part is high, and the electric energy loss is small; meanwhile, the double-layer insulation heat-shrinkable tube is sleeved on the conductor wire core, and in the process of fusion connection, the inner layer of the double-layer insulation heat-shrinkable tube is fused and bonded to form a sealing structure.
Furthermore, the upper die is a T-shaped die block, the upper die cavity is positioned on the small end face of the upper die, and the melting cavity is arranged on the large end face of the upper die; the lower die is provided with a groove matched with the small end of the upper die, and the lower die cavity is arranged on the bottom surface of the groove.
The lower die cavity and the groove form a step, so that the joint surfaces of the upper die and the lower die are bent, the phenomenon that in the process of fusion connection, molten liquid seeps out from the joint surfaces of the upper die and the lower die, the outer layer of the outer insulating layer of the conductor wire core can be recovered after the molten liquid needs to be processed, otherwise, a gap is easily formed, even the insulating layer is scratched, and the safety of the cable connection position is affected is avoided.
Furthermore, the upper die cavity and the lower die cavity respectively comprise a first die section, a second die section and a third die section which are sequentially arranged from left to right, and the inner diameter of the first die section is equal to the outer diameter of the first double-layer insulation heat-shrinkable tube; the inner diameter of the second die section is equal to the outer diameter of the first conductor wire core/the second conductor wire core; the inner diameter of the third mould section is equal to the outer diameter of the second double-layer insulation heat-shrinkable tube.
The melting connection cavity is of a reducing structure with large inner diameters at two ends and small inner diameter in the middle, so that the first double-layer insulating heat-shrinkable tube and the second double-layer insulating heat-shrinkable tube are in contact with a molten welding material but are not covered by the welding material, and the outer layer damage caused by overheating of the double-layer insulating heat-shrinkable tube is avoided.
Furthermore, the connecting device also comprises two fixing devices arranged at two sides of the forming die, and each fixing device comprises a bottom plate and an elastic wide bandage arranged on the bottom plate; the bottom plate is arranged along the extension line of the axis of the melting connection cavity. The fixing device is used for fixing the first cable and the second cable to be connected, and the first cable and the second cable are prevented from moving in the fusion connection process to influence the connection effect.
Further, the elastic wide band comprises a buckle section and a clamp hole section; one end of the buckle section is fixed on the bottom plate, and the other end of the buckle section is provided with a convex spherical buckle; one end of the clamping hole section is fixed on the bottom plate, the other end of the clamping hole section is provided with a plurality of clamping holes which are sequentially arranged at equal intervals along the clamping hole section, and the diameter of each clamping hole is smaller than that of the spherical buckle; the elastic wide bandage is made of rubber materials, so that the fixing effect of the first cable and the second cable can be adjusted, and the elastic wide bandage is fixed by the elastic rubber materials, so that the first cable and the second cable can be prevented from being scratched in the fixing process. Meanwhile, the plurality of clamping holes arranged on the clamping hole section can be suitable for cables with different outer diameters.
Furthermore, the fixing device also comprises a lifting block arranged on the bottom plate, and the elastic wide binding band is arranged on the lifting block; the lifting block is in threaded connection with the bottom plate through the bolt to adjust the height of the lifting block, so that when the first cable and the second cable are fixed on the lifting block, the first cable and the second cable extend to the lifting block at the other end from the lifting block at one end of the forming die, the axes of the first cable and the second cable are on the same horizontal plane, the first cable and the second cable are horizontally connected at the joint, and the connection effect is better.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
(1) the utility model provides a novel cable fusion joint connecting device, which adopts the fused welding material to flow into the fusion connecting cavity for connecting two conductor wire cores, thereby realizing the fusion connection of the two conductor wire cores; and meanwhile, the double-layer insulation heat-shrinkable tube is sleeved on the two conductor wire cores, and a good sealing and bonding effect is realized through the bonding layer on the inner layer of the double-layer insulation heat-shrinkable tube.
(2) The utility model provides a novel cable melting connects connecting device still is provided with fixing device, keeps the stability of first cable and second cable when the melting is connected, avoids in the melting connection process, and first cable and second cable remove and influence the linkage effect.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the present invention when connecting the first cable and the second cable;
fig. 3 is a top view of the lower mold of the present invention;
wherein: 1-first cable, 11-first exposed section, 2-second cable, 21-second exposed section, 3-forming die, 31-lower die, 311-lower die cavity, 3111-first die section, 3112-second die section, 3113-third die section, 32-upper die, 321-upper die cavity, 322-melting cavity, 323-connecting channel, 4-first double-layer insulation heat-shrinkable tube, 5-second double-layer insulation heat-shrinkable tube, 6-fixing device, 61-bottom plate, 62-elastic wide bandage, 621-buckle section, 622-hole clamping section, 63-lifting block, 631-bolt.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example 1
As shown in fig. 1 and fig. 2, a novel cable fusion joint connecting device connects a first cable (1) and a second cable 2, the first cable 1 includes a first conductor core, a first exposed section 11 exposed outside is arranged at one end of the first conductor core connected with the second conductor core, the second cable 2 includes a second conductor core, and a second exposed section 21 exposed outside is arranged at the other end of the second conductor core connected with the second conductor core. The connecting device comprises a forming die 3, and a first double-layer insulating heat-shrinkable tube 4 and a second double-layer insulating heat-shrinkable tube 5 which are sleeved on the first exposed section 11 and the second exposed section 21 respectively; the forming die 3 comprises a lower die 31 and an upper die 32; a lower die cavity 311 and an upper die cavity 321 are respectively arranged between the lower die 31 and the upper die 32, and the upper die cavity 321 and the lower die cavity 311 form a melting connection cavity; a melting cavity 322 is arranged on the upper die 32, and a connecting channel 323 connected with the melting connecting cavity is arranged at the bottom of the melting cavity 322; in the process of cable fusion connection, the first exposed section 11 and the second exposed section 21 respectively extend into the fusion connection cavity from two ends of the fusion connection cavity. The first double-layer insulation heat shrinkable tube 4 does not completely cover the first exposed section 11, and the second double-layer insulation heat shrinkable tube 5 does not completely cover the second exposed section 21.
In the fusion connection process, the first double-layer insulation heat-shrinkable tube 4 and the second double-layer insulation heat-shrinkable tube 5 extend into a fusion connection cavity formed by the upper die cavity 321 and the lower die cavity 311, the inner diameter of the fusion connection cavity is equal to the outer diameter of the double-layer insulation heat-shrinkable tube, and when the fusion connection process is carried out, a fusion liquefied welding material forms a connection part with the outer diameter equal to that of the double-layer insulation heat-shrinkable tube, so that the insulation layer, the shielding layer, the waterproof layer and the like outside the conductor wire core can be recovered conveniently, and the connection safety of the cable connection part is improved.
Example 2
The embodiment is improved on the basis of embodiment 1, and the improvement is as follows: the upper die 32 is a T-shaped die block, the upper die cavity 321 is located on the small end face of the upper die 32, and the melting cavity 322 is arranged on the large end face of the upper die 32; the lower die 31 is provided with a groove matched with the small end of the upper die 32, and the lower die cavity 311 is arranged on the bottom surface of the groove.
The lower die cavity 311 and the groove form a step, so that the joint surfaces of the upper die 32 and the lower die 31 are bent, the phenomenon that in the process of fusion connection, molten liquid seeps out from the joint surfaces of the upper die 32 and the lower die 31, the outer layer of the outer insulating layer of the conductor wire core can be recovered after treatment is needed, otherwise, a gap is easily formed, even the insulating layer is scratched, and the safety of the cable connection position is affected is avoided.
Other parts in this embodiment are substantially the same as those in embodiment 1, and thus are not described in detail.
Example 3
The embodiment is improved on the basis of the embodiment 2, and the improvement is as follows: as shown in fig. 3, each of the upper cavity 321 and the lower cavity 311 includes a first mold segment 3111, a second mold segment 3112 and a third mold segment 3113 arranged from left to right, and an inner diameter of the first mold segment is equal to an outer diameter of the first double-layer insulation heat shrinkable tube 4; the inner diameter of the second mold segment 3112 is equal to the outer diameter of the first/second conductor core; the inner diameter of the third mold section 3113 is equal to the outer diameter of the second double-layer insulation heat shrinkable tube 5.
The fusion connection cavity is of a reducing structure with large inner diameters at two ends and small inner diameter in the middle, so that the first double-layer insulation heat-shrinkable tube 4 and the second double-layer insulation heat-shrinkable tube 5 are in contact with a fused welding material but are not covered by the fusion connection cavity, and the outer layer damage caused by overheating of the double-layer insulation heat-shrinkable tubes is avoided.
Other parts in this embodiment are substantially the same as those in embodiment 1 or 2, and therefore are not described in detail.
Example 4
The embodiment is improved on the basis of any embodiment of the embodiments 1 to 3, and the improvement is as follows: the connecting device further comprises two fixing devices 6 arranged at two sides of the forming die 3, wherein each fixing device 6 comprises a bottom plate 61 and an elastic wide binding belt 62 arranged on the bottom plate 61; the bottom plate 61 is arranged along the extension of the axis of the melt connection chamber. The fixing device 6 is used for fixing the first cable 1 and the second cable 2 to be connected, and the first cable 1 and the second cable 2 are prevented from moving in the fusion connection process to influence the connection effect.
The elastic wide band 62 comprises a fastening section 621 and a fastening hole section 622; one end of the buckle section 621 is fixed on the bottom plate 61, and the other end is provided with a convex spherical buckle; one end of the clamping hole section 622 is fixed on the bottom plate 61, the other end of the clamping hole section 622 is provided with a plurality of clamping holes which are sequentially arranged at equal intervals along the clamping hole section 622, and the diameter of each clamping hole is smaller than that of the spherical buckle; the elastic wide bandage 62 is made of rubber materials, so that the fixing effect of the first cable 1 and the second cable 2 can be adjusted, and meanwhile, the elastic wide bandage is fixed by the elastic rubber materials, so that the first cable 1 and the second cable 2 can be prevented from being scratched in the fixing process. Meanwhile, the plurality of clamping holes formed in the clamping hole section 622 can be suitable for cables with different outer diameters.
Other parts of this embodiment are substantially the same as those of the above embodiment, and therefore are not described in detail.
Example 5
The embodiment is improved on the basis of embodiment 4, and the improvement is as follows: the fixing device 6 further comprises a lifting block 63 arranged on the bottom plate 61, and the elastic wide binding belt 62 is arranged on the lifting block 63; the lifting block 63 is in threaded connection with the base plate 61 through the bolt 631 to adjust the height of the lifting block 63, so that when the first cable 1 and the second cable 2 are fixed on the lifting block 63, and when the first cable 1 and the second cable 2 extend from the lifting block 63 at one end of the forming die 3 to the lifting block 63 at the other end, the axes of the first cable 1 and the second cable 2 are on the same horizontal plane, the first cable 1 and the second cable 2 are horizontally connected at the joint, and the connection effect is better.
Other parts of this embodiment are substantially the same as those of the above embodiment, and therefore are not described in detail.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (6)
1. The utility model provides a novel cable melting connects connecting device, connects first cable (1) and second cable (2), first cable (1) includes first conductor sinle silk, and the one end that first conductor sinle silk and second conductor sinle silk are connected has exposes first exposed section (11) outside, second cable (2) includes the second conductor sinle silk, and the two ends that second conductor sinle silk and second conductor sinle silk are connected have exposes exposed section (21) of second outside, its characterized in that: comprises a forming die (3), a first double-layer insulation heat-shrinkable tube (4) and a second double-layer insulation heat-shrinkable tube (5) which are respectively sleeved on a first exposed section (11) and a second exposed section (21); the forming die (3) comprises a lower die (31) and an upper die (32); a lower die cavity (311) and an upper die cavity (321) are respectively arranged between the lower die (31) and the upper die (32), and the upper die cavity (321) and the lower die cavity (311) form a melting connection cavity; the mould (32) is provided with a melting cavity (322), and the bottom of the melting cavity (322) is provided with a connecting channel (323) connected with the melting connecting cavity.
2. The novel cable fusion splice connection of claim 1, wherein: the upper die (32) is a T-shaped die block, the upper die cavity (321) is positioned on the small end face of the upper die (32), and the melting cavity (322) is arranged on the large end face of the upper die (32); the lower die (31) is provided with a groove matched with the small end of the upper die (32), and the lower die cavity (311) is arranged on the bottom surface of the groove.
3. The novel cable fusion splice connection of claim 2, wherein: the upper die cavity (321) and the lower die cavity (311) respectively comprise a first die section (3111), a second die section (3112) and a third die section (3113) which are sequentially arranged from left to right, and the inner diameter of the first die section is equal to the outer diameter of the first double-layer insulation heat-shrinkable tube (4); the inner diameter of the second mold segment (3112) is equal to the outer diameter of the first/second conductor core; the inner diameter of the third mould section (3113) is equal to the outer diameter of the second double-layer insulation heat shrinkable tube (5).
4. A novel cable fusion splice connection device according to any one of claims 1 to 3, characterized in that: the device is characterized by also comprising two fixing devices (6) arranged at two sides of the forming die (3), wherein each fixing device (6) comprises a bottom plate (61) and an elastic wide bandage (62) arranged on the bottom plate (61); the bottom plate (61) is arranged along the extension line of the axis of the melting connection cavity.
5. The novel cable fusion splice connection of claim 4, wherein: the elastic wide bandage (62) comprises a buckling section (621) and a clamping hole section (622); one end of the buckle section (621) is fixed on the bottom plate (61), and the other end is provided with a convex spherical buckle; one end of the clamping hole section (622) is fixed on the bottom plate (61), the other end of the clamping hole section is provided with a plurality of clamping holes which are sequentially arranged at equal intervals along the clamping hole section (622), and the diameter of each clamping hole is smaller than that of the spherical buckle; the elastic wide bandage (62) is made of rubber materials.
6. The novel cable fusion splice connection of claim 4, wherein: the fixing device (6) further comprises a lifting block (63) arranged on the bottom plate (61), and the wide elastic binding band (62) is arranged on the lifting block (63); the lifting block (63) is in threaded connection with the bottom plate (61) through a bolt (631).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263663.7U CN210477851U (en) | 2019-08-06 | 2019-08-06 | Novel cable fusion splice connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921263663.7U CN210477851U (en) | 2019-08-06 | 2019-08-06 | Novel cable fusion splice connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210477851U true CN210477851U (en) | 2020-05-08 |
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ID=70534574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921263663.7U Active CN210477851U (en) | 2019-08-06 | 2019-08-06 | Novel cable fusion splice connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210477851U (en) |
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2019
- 2019-08-06 CN CN201921263663.7U patent/CN210477851U/en active Active
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