CN213425764U - Low pressure cold-shrinkable type cable termination - Google Patents
Low pressure cold-shrinkable type cable termination Download PDFInfo
- Publication number
- CN213425764U CN213425764U CN202021491482.2U CN202021491482U CN213425764U CN 213425764 U CN213425764 U CN 213425764U CN 202021491482 U CN202021491482 U CN 202021491482U CN 213425764 U CN213425764 U CN 213425764U
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- China
- Prior art keywords
- branch cover
- joint pipe
- inside wall
- low pressure
- type cable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 229920002379 silicone rubber Polymers 0.000 claims description 12
- 239000000565 sealant Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 7
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 239000003292 glue Substances 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 11
- 239000002390 adhesive tape Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012792 core layer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a low pressure cold contraction type cable termination belongs to shrinkage type cable termination field, including the branch cover, the one end of branch cover is connected with the joint pipe, the joint pipe has three one ends that all connect at the branch cover of group, the pull strip is installed to the inside wall of joint pipe, stress cone and stress cone are installed to the inside wall of joint pipe and are located the left side of pull strip, the inside wall of branch cover pipe passes through the sealed tube with the terminal of cable, the lateral wall of sealed tube is connected with PVC sticky tape and is located the inside wall of branch cover. The utility model discloses a mutual supporting of branch cover, sealed tube, joint pipe, pull strip, stress cone, PVC sticky tape and sealed glue to can carry out sealing connection with cable terminal, thereby can be effectual waterproof, rethread steel armour ground wire, ampere meter and backward diode mutually support, thereby can effectual detection cable terminal joint department leakage state, thereby protect the workman, be fit for being extensively promoted and used.
Description
Technical Field
The utility model relates to a technical field is ended to shrinkage type cable especially relates to a low pressure shrinkage type cable termination equipment.
Background
Since the new century, the electric power construction in China is developed vigorously, and the electric power demand is rising continuously. The demand of power cables in various fields of metallurgy, construction, petrochemical industry, agriculture, daily life, and the like is continuously increasing, and at the same time, the demand of accessory products of cables is also increasing in a synchronous manner.
Particularly, the cable terminal in the cable accessory can be connected with electrical equipment such as a power transformer and a distribution box, is widely applied and plays a key role in the connection working process of power cables.
At present, a tool is generally required to be used in the installation process of a cable terminal, the process is complex, the cable is easy to leak, namely, the sealing and waterproof performance is poor, and the long-term safe use of the cable is seriously influenced.
Patent No. CN201320205851 discloses a cold-shrink type cable terminal, comprising: line core layer, insulating layer, semi-conductive layer, stress tube and shrinkage sleeve, the sinle silk is provided with the insulating layer outward, the insulating layer is provided with the semi-conductive layer outward, the stress tube sets up on insulating layer and semi-conductive layer, the shrinkage sleeve pipe sets up outside stress tube and semi-conductive layer, still be provided with the connecting pipe between the semi-conductive layer, be provided with the support bar in the connecting pipe. In this way, the utility model discloses a shrinkage type cable termination has good waterproof sealing performance, has guaranteed long-term operation's reliability, and whole installation need not use tools, and is more simple and convenient swift, safe and reliable.
At present, the technology has certain defects: 1. poor sealing performance leads to easy rainwater entering at the joint to cause electric leakage and damage to other people; 2. the electric leakage detection is not carried out on the cable terminal, so that the accident easily caused by the electric leakage after the connection of the cable terminal cannot be judged.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low pressure shrinkage type cable termination equipment, through mutually supporting of branch cover, sealed tube, joint pipe, draw-out strip, stress cone, PVC sticky tape and sealed glue to can carry out sealing connection with cable termination, thereby can be effectual waterproof, mutually supporting of rethread steel armour ground wire, ampere meter and backward diode, thereby can effectual detection cable termination joint department leakage state, thereby protect the workman, can effectively solve the problem in the background art.
The utility model provides a specific technical scheme as follows:
the utility model provides a pair of low pressure cold-contraction type cable terminal equipment, including the branch cover, the one end of branch cover is connected with the joint pipe, the joint pipe has three groups all to connect the one end at the branch cover, the draw-out strip is installed to the inside wall of joint pipe, stress cone and stress cone are installed to the inside wall of joint pipe and are located the left side of draw-out strip, the inside wall of branch cover pipe passes through the sealed tube with the terminal of cable, the lateral wall of sealed tube is connected with the inside wall that PVC sticky tape and PVC sticky tape are located the branch cover, the terminal connection of cable has steel armour ground wire, the one end of steel armour ground wire is connected with backward diode, backward diode's the other end and the input electric connection of ampere meter and ampere meter are located the lateral wall left side of branch cover.
Optionally, the inner side wall of the supporting sleeve is filled with sealant, and the sealing pipe is located on the inner side wall of the sealant.
Optionally, the material of the sealing tube and the material of the joint tube are both silicon rubber.
Optionally, the through-hole has been seted up to the inside wall of sealed tube and the through-hole has three groups to evenly set up at the connecting pipe lateral wall.
Optionally, the diameter of the inner side wall of the joint pipe is the same as that of the through hole.
The utility model has the advantages as follows:
1. the utility model discloses practical, convenient operation and excellent in use effect, the inside wall of support sleeve is installed the sealed tube, three groups of through-holes have been seted up to the top lateral wall of sealed tube, the cable inside wall has three groups of copper lines, after peeling off the cable terminal, twine the bottom lateral wall of three groups of copper lines respectively and prevent the electric adhesive tape, then insert the copper line through the through-hole, the inside wall of sealed tube is connected with the pull strip, pull out the pull strip, because the sealed tube is the silicon rubber material, the silicon rubber material has good low temperature resistance, can contract under normal atmospheric temperature state, thus after the pull strip is pulled out, the sealed tube tightly covers the lateral wall of cable, the inside wall of support sleeve has the sealant, thereby the sealant seals the inside wall of support sleeve, thereby can effectively carry out waterproof, because the one end of support sleeve and adapter tube are seamless connection, thereby three groups of copper lines insert three groups of adapter tube, the stress cone is installed on the left side of the inner side wall of the joint pipe, the stress cone is effectively fixed to the copper wire, the inner side wall of the joint pipe is connected with the pulling strip, and the joint pipe is also made of silicon rubber, so that after the pulling strip is pulled, the silicon rubber is tightly attached to the outer side wall of the copper wire, the sealing can be effectively carried out, the rainwater can be prevented from permeating into a cable terminal, and the electric leakage can be avoided.
2. In the utility model, the steel armor layer is installed on the inner side wall of the cable, the outer side wall of the steel armor is connected with the steel armor ground wire, one end of the steel armor ground wire is connected with the backward diode, the core of the backward diode is a highly doped p-n junction, but one side of the junction is degenerate, the other side is a semiconductor with a doping concentration which is slightly lower, close to degeneracy and not completely degenerate, when the diode is at a lower working voltage, the forward current of the diode is very small, the forward characteristic is similar to the common p-n junction, the diffusion current of minority carriers, tunnel current does not appear, the backward current is very large, the ammeter is installed at the other end of the backward diode, when the cable terminal leaks electricity, the current enters the ammeter through the backward diode, the ammeter displays the current, the worker observes the counting of the ammeter, thereby judges whether the cable terminal leaks electricity, the worker is guaranteed to avoid electric shock danger.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of a low-pressure cold-compression type cable terminal device according to an embodiment of the present invention;
fig. 2 is the utility model discloses low pressure cold-compression type cable termination's joint pipe structure sketch map.
In the figure: 1. supporting a sleeve; 2. a cable; 3. a sealing tube; 4. sealing glue; 5. PVC adhesive tape; 6. a reverse diode; 7. a joint pipe; 8. a steel armor ground wire; 9. an ammeter; 10. drawing the strip; 11. and (4) stress cones.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A low-pressure-cooling-type cable termination device according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 2.
As shown in fig. 1-2, a low-voltage cold-compression cable terminal device includes a support sleeve 1, one end of the support sleeve 1 is connected with a joint pipe 7, three groups of joint pipes 7 are connected to one end of the support sleeve 1, a pull strip 10 is installed on the inner side wall of the joint pipe 7, a stress cone 11 is installed on the inner side wall of the joint pipe 7, the stress cone 11 is located on the left side of the pull strip 10, the inner side wall of the support sleeve and a terminal of a cable 2 pass through a sealing pipe 3, the outer side wall of the sealing pipe 3 is connected with a PVC adhesive tape 5, the PVC adhesive tape 5 is located on the inner side wall of the support sleeve 1, the terminal of the cable 2 is connected with a steel-armored ground wire 8, one end of the steel-armored ground wire 8 is connected with a backward diode 6, the other end of the backward diode 6 is electrically connected with an input end of an. Wherein, mutually support through branch cover, sealed tube, joint pipe, pull strip, stress cone, PVC sticky tape and sealed glue to can carry out sealing connection with cable terminal, thereby can effectually waterproof, rethread steel armour ground wire, ampere meter and backward diode mutually support, thereby can effectual detection cable terminal joint department electric leakage state, thereby protect the workman.
In this embodiment, as shown in fig. 1, the inner side wall of the support sleeve 1 is filled with a sealant 4, and the sealing tube 3 is located on the inner side wall of the sealant 4. Wherein, sealed glue can be effectual fills the branch cover inside wall.
In this embodiment, as shown in fig. 1, the material of the sealing tube 3 and the material of the joint tube 7 are both silicon rubber. Among them, silicone rubber has good low-temperature resistance and insulation properties.
In this embodiment, as shown in fig. 1, the inner sidewall of the sealing tube 3 is provided with three through holes, and the three through holes are uniformly formed on the outer sidewall of the connecting tube. Wherein the through hole facilitates insertion of the cable termination into the sealing tube.
In this embodiment, as shown in fig. 1, the diameter of the inner sidewall of the joint pipe 7 is the same as the diameter of the through hole. Wherein, make things convenient for the copper line to alternate.
It should be noted that, the utility model relates to a low pressure cold-shrinkable cable terminal device, in operation, the inner side wall of the support sleeve 1 is provided with the sealing tube 3, the top outer side wall of the sealing tube 3 is provided with three groups of through holes, the inner side wall of the cable 2 is provided with three groups of copper wires, after the terminal of the cable 2 is peeled off, the bottom outer side walls of the three groups of copper wires are respectively wound with the electricity-proof adhesive tapes, then the copper wires are inserted through the through holes, the inner side wall of the sealing tube 3 is connected with the pulling strip 10, the pulling strip 10 is pulled out, because the sealing tube 3 is made of silicon rubber, the silicon rubber has good low temperature resistance and can shrink under the normal temperature state, thereby when the pulling strip 10 is pulled out, the sealing tube 3 tightly covers the outer side wall of the cable 2, the inner side wall of the support sleeve is provided with the sealant 4, thereby the sealant 4 seals the inner side wall of the support sleeve, thereby, therefore, three groups of copper wires are respectively inserted into the inner side walls of three groups of joint pipes 7, a stress cone 11 is arranged on the left side of the inner side wall of the joint pipe 7, the copper wires are effectively fixed by the stress cone 11, the inner side wall of the joint pipe 7 is connected with a pulling strip 10, the joint pipe 7 is also made of silicon rubber, after the pulling strip 10 is pulled, the silicon rubber is tightly attached to the outer side wall of the copper wires, so that the sealing can be effectively carried out, rainwater can be prevented from permeating into the terminal of the cable 2, so that electric leakage can be avoided, a steel armor layer is arranged on the inner side wall of the cable 2, the outer side wall of the steel armor is connected with a steel armor ground wire 8, one end of the steel armor ground wire 8 is connected with a degenerate diode 6, the core of the degenerate diode 6 is a highly doped p-n junction, but one side of the junction is degenerate, the other side, the forward current of the cable is very small, the forward characteristic is similar to that of a common p-n junction, the diffusion current of minority carriers does not appear tunnel current, the reverse current is very large, and the ammeter 9 is installed at the other end of the reverse diode 6, so that when the terminal of the cable 2 leaks electricity, the current enters the ammeter 9 through the reverse diode 6, the ammeter displays the current, a worker observes the count of the ammeter 9, whether the terminal of the cable 2 leaks electricity is judged, and the worker is guaranteed to avoid electric shock danger.
The utility model relates to a low-voltage cold-shrinkage cable terminal equipment 1, a support sleeve; 2. a cable; 3. a sealing tube; 4. sealing glue; 5. PVC adhesive tape; 6. a reverse diode; 7. a joint pipe; 8. a steel armor ground wire; 9. an ammeter; 10. drawing the strip; 11. the stress cone components are all standard parts or parts known to the person skilled in the art, the structure and the principle of which are known to the person skilled in the art from technical manuals or by routine experimentation.
It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The utility model provides a low pressure cold-shrinkable type cable terminal equipment, includes branch cover (1), its characterized in that, the one end of branch cover (1) is connected with joint pipe (7), joint pipe (7) have three groups all to connect the one end in branch cover (1), draw-out strip (10) are installed to the inside wall of joint pipe (7), stress cone (11) and stress cone (11) are installed to the inside wall of joint pipe (7) and are located the left side of draw-out strip (10), the inside wall of branch cover pipe passes through sealing tube (3) with the terminal of cable (2), the lateral wall of sealing tube (3) is connected with PVC sticky tape (5) and PVC sticky tape (5) are located the inside wall of branch cover (1), the terminal of cable (2) is connected with steel armour ground wire (8), the one end of steel armour ground wire (8) is connected with backward diode (6), the other end of backward diode (6) and the input electric connection of ampere meter (9) and ampere meter (9) are located branch cover (9), (9) 1) To the left of the outer sidewall.
2. A low pressure cold compression type cable termination apparatus according to claim 1, wherein the inner side wall of the support sleeve (1) is filled with sealant (4), and the sealing tube (3) is located on the inner side wall of the sealant (4).
3. A low pressure cold-compression type cable termination apparatus according to claim 1, wherein the material of the sealing tube (3) and the material of the joint tube (7) are both silicone rubber.
4. A low pressure cold-compression type cable termination apparatus according to claim 1, wherein the inner side wall of the sealing tube (3) is provided with three through holes and the three through holes are uniformly provided on the outer side wall of the connecting tube.
5. A low pressure cold compression type cable termination apparatus according to claim 4, wherein the inside wall diameter of the joint tube (7) is the same as the diameter of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021491482.2U CN213425764U (en) | 2020-07-27 | 2020-07-27 | Low pressure cold-shrinkable type cable termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021491482.2U CN213425764U (en) | 2020-07-27 | 2020-07-27 | Low pressure cold-shrinkable type cable termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213425764U true CN213425764U (en) | 2021-06-11 |
Family
ID=76254913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021491482.2U Expired - Fee Related CN213425764U (en) | 2020-07-27 | 2020-07-27 | Low pressure cold-shrinkable type cable termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213425764U (en) |
-
2020
- 2020-07-27 CN CN202021491482.2U patent/CN213425764U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |