CN220510698U - Insulating polyvinyl chloride heat shrinkage pipe - Google Patents
Insulating polyvinyl chloride heat shrinkage pipe Download PDFInfo
- Publication number
- CN220510698U CN220510698U CN202321804431.4U CN202321804431U CN220510698U CN 220510698 U CN220510698 U CN 220510698U CN 202321804431 U CN202321804431 U CN 202321804431U CN 220510698 U CN220510698 U CN 220510698U
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- CN
- China
- Prior art keywords
- polyvinyl chloride
- heat
- layer
- shrinkable
- corrosion
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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.)
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- 229920000915 polyvinyl chloride Polymers 0.000 title claims abstract description 62
- 239000004800 polyvinyl chloride Substances 0.000 title claims abstract description 62
- 239000010410 layer Substances 0.000 claims abstract description 58
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 239000012790 adhesive layer Substances 0.000 claims abstract description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 24
- 239000012943 hotmelt Substances 0.000 claims description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to the technical field of heat shrink tubes, in particular to an insulating polyvinyl chloride heat shrink tube. The technical proposal comprises: the PVC heat-shrinkable tube comprises a PVC heat-shrinkable tube body, a fireproof layer and a corrosion-resistant layer, wherein the fireproof layer is fixedly arranged on the inner side of the PVC heat-shrinkable tube body, the corrosion-resistant layer is fixedly connected with the inner wall of the fireproof layer, an insulating layer is fixedly arranged on the inner side of the corrosion-resistant layer, and an adhesive layer is fixedly connected between the PVC heat-shrinkable tube body and the fireproof layer. According to the utility model, the fireproof layer, the corrosion-resistant layer and the insulating layer are arranged, so that the natural condition of the joint of the wire ends when short circuit occurs can be avoided, the corrosion-resistant layer prevents the heat shrinkage tube from being corroded after long-time use, the insulating layer is contacted with the joint of the wire ends, the insulating effect is achieved, and the condition of electric leakage at the joint is avoided.
Description
Technical Field
The utility model relates to the technical field of heat shrink tubes, in particular to an insulating polyvinyl chloride heat shrink tube.
Background
At present, the most common plastic sleeve is a polyvinyl chloride sleeve, the cross section of the plastic sleeve is of a circular ring structure, the plastic sleeve is provided with an inner wall and an outer wall, and the inner and outer pipe diameters are generally changed after being heated. The heat shrinkage tube is a special polyolefin heat shrinkage sleeve, the outer layer is formed by compounding and processing high-quality soft cross-linked polyolefin materials and inner layer hot melt adhesives, the polyvinyl chloride sleeve can achieve rated temperature 105 ℃ and rated voltage 300/600V when used for wires and cables, and can protect the wires.
The staff cup joints polyvinyl chloride pyrocondensation pipe in the junction of connecting wire, then makes its shrink through heating, protects the junction of connecting wire. However, most of the existing polyvinyl chloride heat shrink tubes are not provided with insulating materials, so that the polyvinyl chloride heat shrink tubes are easy to leak electricity after being installed, and potential safety hazards are caused.
Disclosure of Invention
The utility model aims to provide an insulating polyvinyl chloride heat shrinkage tube so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an insulating polyvinyl chloride pyrocondensation pipe, includes polyvinyl chloride pyrocondensation pipe main part, flame retardant coating and corrosion-resistant layer, the inboard fixed mounting of polyvinyl chloride pyrocondensation pipe main part has the flame retardant coating, the inner wall fixedly connected with corrosion-resistant layer of flame retardant coating, the inboard fixed mounting of corrosion-resistant layer has the insulating layer, fixedly connected with adhesive linkage between polyvinyl chloride pyrocondensation pipe main part and the flame retardant coating.
Preferably, a left heat-shrinkable sleeve is fixedly arranged on one side of the polyvinyl chloride heat-shrinkable tube main body, and a right heat-shrinkable sleeve is fixedly connected to the other side of the polyvinyl chloride heat-shrinkable tube main body. When the polyvinyl chloride heat shrinkage pipe main body is installed, the left heat shrinkage sleeve and the right heat shrinkage sleeve are respectively installed on the outer sides of the wires at the two ends, and then are fixedly connected with the outer sides of the wires through heat shrinkage.
Preferably, a tin ring is movably arranged in the insulating layer, and the tin ring is positioned in the middle of the inside of the insulating layer. When the polyvinyl chloride heat shrinkage pipe main body is subjected to heat shrinkage, the tin ring is heated and melted, and contacts with the joint of the electric wire, so that the joint is tinned, and the connection strength of the joint is improved.
Preferably, the outer side of the tin ring is fixedly provided with a hot melt film strip, and two sides of the hot melt film strip are fixed on the inner wall of the insulating layer through hot melt adhesive. The hot melt film strip enables the tin ring to be fixedly arranged at the middle position of the inner wall of the insulating layer, and when the hot melt film strip is heated, the tin ring is melted, so that the effect of the hot melt film strip on the melting of the tin ring is avoided.
Preferably, the inner walls of the left heat-shrinkable sleeve and the right heat-shrinkable sleeve are fixedly provided with choke shrink rings, and the choke shrink rings are positioned on one side close to the polyvinyl chloride heat-shrinkable tube main body. After the tin ring is melted and contacted with the wire joint, the flow-blocking shrinkage ring prevents the tin ring from flowing out, and the melted tin ring is blocked.
Preferably, the inner walls of the left heat-shrinkable outer sleeve and the right heat-shrinkable outer sleeve are provided with grooves, and sealing heat-shrinkable rings are fixedly arranged in the grooves. After the left heat shrinkage sleeve and the right heat shrinkage sleeve are subjected to heat shrinkage, the sealing heat shrinkage ring is in close contact with the outer side of the electric wire, so that the tightness of the device is improved, and liquid is prevented from flowing into the device.
Preferably, transparent rings are fixedly connected to the outer side of the polyvinyl chloride heat shrinkage tube main body, and the number of the transparent rings is two and symmetrically distributed. When the polyvinyl chloride heat shrinkage pipe main body is installed, workers can observe through the transparent ring, so that the joint of the electric wire can be installed at the middle position inside the polyvinyl chloride heat shrinkage pipe main body, and the joint is better tinned.
Compared with the prior art, the utility model has the beneficial effects that:
1. through being provided with flame retardant coating, corrosion-resistant layer and insulating layer, the flame retardant coating can avoid taking place the natural condition when the junction of end of a thread takes place the short circuit, and corrosion-resistant layer has avoided the pyrocondensation pipe to use for a long time to be corroded, and insulating layer and the junction contact of end of a thread have played insulating effect, have avoided the condition of junction electric leakage, have promoted the practicality of device.
2. Through being provided with polyvinyl chloride pyrocondensation pipe main part and adhesive linkage, evenly scribble the adhesive linkage between polyvinyl chloride pyrocondensation pipe main part and the flame retardant coating, make the connection between polyvinyl chloride pyrocondensation pipe main part and the flame retardant coating inseparabler to the life of device has been promoted.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic view of a partial cross-sectional elevation of the polyvinyl chloride heat shrinkable tube body of the present utility model;
FIG. 3 is a schematic view of a partial front cross-sectional structure of the fire-resistant layer of the present utility model;
fig. 4 is a schematic cross-sectional elevation view of the left heat-shrinkable outer jacket of the present utility model.
In the figure: 1. a polyvinyl chloride heat-shrinkable tube body; 101. a left heat shrinkage jacket; 102. a right heat shrinkage jacket; 103. a fire-blocking layer; 104. a corrosion resistant layer; 105. an insulating layer; 106. an adhesive layer; 107. a tin ring; 108. a strip of hot melt film; 109. a choke shrink ring; 2. a groove; 201. sealing the heat shrinkage ring; 202. a transparent ring.
Detailed Description
The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.
Example 1
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the insulating polyvinyl chloride heat-shrinkable tube provided by the utility model comprises a polyvinyl chloride heat-shrinkable tube main body 1, a fireproof layer 103 and a corrosion-resistant layer 104, wherein the fireproof layer 103 is fixedly arranged on the inner side of the polyvinyl chloride heat-shrinkable tube main body 1, the corrosion-resistant layer 104 is fixedly connected with the inner wall of the fireproof layer 103, the insulating layer 105 is fixedly arranged on the inner side of the corrosion-resistant layer 104, an adhesive layer 106 is fixedly connected between the polyvinyl chloride heat-shrinkable tube main body 1 and the fireproof layer 103, a left heat-shrinkable sleeve 101 is fixedly arranged on one side of the polyvinyl chloride heat-shrinkable tube main body 1, a right heat-shrinkable sleeve 102 is fixedly connected on the other side of the polyvinyl chloride heat-shrinkable tube main body 1, a tin ring 107 is movably arranged in the insulating layer 105, and the tin ring 107 is positioned in the middle position inside the insulating layer 105.
The working principle based on the insulating polyvinyl chloride heat shrinkage pipe of the embodiment 1 is as follows: the fire-proof layer 103 can avoid the situation of nature when the junction of end of a thread takes place the short circuit, corrosion-resistant layer 104 has avoided the pyrocondensation pipe to use for a long time to be corroded, insulating layer 105 and the junction contact of end of a thread, the effect of insulating has been played, the condition of junction electric leakage has been avoided, the practicality of device has been promoted, evenly scribble adhesive layer 106 between polyvinyl chloride pyrocondensation pipe main part 1 and the fire-proof layer 103, make the connection between polyvinyl chloride pyrocondensation pipe main part 1 and the fire-proof layer 103 more inseparable, thereby the life of device has been promoted, when polyvinyl chloride pyrocondensation pipe main part 1 is installed, left pyrocondensation overcoat 101 and right pyrocondensation overcoat 102 are installed respectively in the electric wire outside at both ends, then through pyrocondensation and electric wire outside fixed connection, when polyvinyl chloride pyrocondensation pipe main part 1 carries out the pyrocondensation, tin ring 107 is heated and also melts thereupon, contact with the junction of electric wire, make junction by the tinning increase its joint strength.
Example two
As shown in fig. 1, fig. 2 and fig. 4, the insulating polyvinyl chloride heat shrinkage tube according to the present utility model further includes, compared with the first embodiment: the outside fixed mounting of tin ring 107 has hot melt membrane strip 108, the both sides of hot melt membrane strip 108 are fixed in the inner wall of insulating layer 105 through hot melt adhesive, the inner wall fixed mounting of left pyrocondensation overcoat 101 and right pyrocondensation overcoat 102 has choked flow shrink ring 109, choked flow shrink ring 109 is located one side near polyvinyl chloride pyrocondensation pipe main part 1, recess 2 has been seted up to the inner wall of left pyrocondensation overcoat 101 and right pyrocondensation overcoat 102, the inside fixed mounting of recess 2 has sealed pyrocondensation ring 201, the outside fixedly connected with transparent ring 202 of polyvinyl chloride pyrocondensation pipe main part 1, the quantity of transparent ring 202 is two and be the symmetric distribution.
In this embodiment, as shown in fig. 1, when a worker installs the polyvinyl chloride heat-shrinkable tube body 1, the worker can observe through the transparent ring 202, so that the joint of the electric wire can be installed at the middle position inside the polyvinyl chloride heat-shrinkable tube body 1, so that the joint is better plated with tin, as shown in fig. 2, the hot-melt film strip 108 enables the tin ring 107 to be fixedly installed at the middle position of the inner wall of the insulating layer 105, when the hot-melt film strip 108 is heated, the hot-melt film strip 108 is prevented from affecting the melting of the tin ring 107, as shown in fig. 4, after the tin ring 107 is melted and contacted with the electric wire joint, the flow-blocking shrinkage ring 109 prevents the tin ring 107 from flowing out, and resists flow of the melted tin ring 107, when the left heat-shrinkable sleeve 101 and the right heat-shrinkable sleeve 102 are heat-shrunk, the sealing heat-shrinkable ring 201 is tightly contacted with the outer side of the electric wire, so that the sealing performance of the device is improved, and liquid is prevented from flowing into the device.
The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.
Claims (7)
1. The utility model provides an insulating polyvinyl chloride pyrocondensation pipe, includes polyvinyl chloride pyrocondensation pipe main part (1), flame retardant coating (103) and corrosion-resistant layer (104), its characterized in that: the PVC heat shrinkage pipe is characterized in that a fireproof layer (103) is fixedly arranged on the inner side of the PVC heat shrinkage pipe body (1), a corrosion-resistant layer (104) is fixedly connected to the inner wall of the fireproof layer (103), an insulating layer (105) is fixedly arranged on the inner side of the corrosion-resistant layer (104), and an adhesive layer (106) is fixedly connected between the PVC heat shrinkage pipe body (1) and the fireproof layer (103).
2. An insulated polyvinyl chloride heat shrink tube as set forth in claim 1, wherein: a left heat-shrinkable sleeve (101) is fixedly arranged on one side of the polyvinyl chloride heat-shrinkable tube main body (1), and a right heat-shrinkable sleeve (102) is fixedly connected to the other side of the polyvinyl chloride heat-shrinkable tube main body (1).
3. An insulated polyvinyl chloride heat shrink tube as set forth in claim 1, wherein: and a tin ring (107) is movably arranged in the insulating layer (105), and the tin ring (107) is positioned in the middle position in the insulating layer (105).
4. An insulated polyvinyl chloride heat shrink tube according to claim 3, wherein: the outside of tin ring (107) fixed mounting has hot melt membrane strip (108), and the both sides of hot melt membrane strip (108) are fixed in the inner wall of insulating layer (105) through hot melt adhesive.
5. An insulated polyvinyl chloride heat shrink tube as set forth in claim 2, wherein: the inner walls of the left heat-shrinkable sleeve (101) and the right heat-shrinkable sleeve (102) are fixedly provided with choke shrink rings (109), and the choke shrink rings (109) are positioned on one side close to the polyvinyl chloride heat-shrinkable tube main body (1).
6. An insulated polyvinyl chloride heat shrink tube as set forth in claim 2, wherein: the inner walls of the left heat-shrinkable outer sleeve (101) and the right heat-shrinkable outer sleeve (102) are provided with grooves (2), and sealing heat-shrinkable rings (201) are fixedly arranged in the grooves (2).
7. An insulated polyvinyl chloride heat shrink tube as set forth in claim 1, wherein: the outer side of the polyvinyl chloride heat shrinkage tube main body (1) is fixedly connected with transparent rings (202), and the number of the transparent rings (202) is two and symmetrically distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321804431.4U CN220510698U (en) | 2023-07-11 | 2023-07-11 | Insulating polyvinyl chloride heat shrinkage pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321804431.4U CN220510698U (en) | 2023-07-11 | 2023-07-11 | Insulating polyvinyl chloride heat shrinkage pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220510698U true CN220510698U (en) | 2024-02-20 |
Family
ID=89877589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321804431.4U Active CN220510698U (en) | 2023-07-11 | 2023-07-11 | Insulating polyvinyl chloride heat shrinkage pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220510698U (en) |
-
2023
- 2023-07-11 CN CN202321804431.4U patent/CN220510698U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |