CN211125219U - Cable sheath protector - Google Patents
Cable sheath protector Download PDFInfo
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- CN211125219U CN211125219U CN201920872129.XU CN201920872129U CN211125219U CN 211125219 U CN211125219 U CN 211125219U CN 201920872129 U CN201920872129 U CN 201920872129U CN 211125219 U CN211125219 U CN 211125219U
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- conducting plate
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Abstract
The utility model relates to a cable accessories technical field, concretely relates to cable sheath protector, including sheath protector main part and the last wiring double-screw bolt and the lower wiring double-screw bolt that set up both ends about the sheath protector main part respectively, still include explosion-proof sheath, current conducting plate and the counter that discharges, explosion-proof protective sheath includes sheath and sheath down, goes up the sheath and from top to bottom establishes in the sheath protector main part outside, and lower sheath is established in the sheath protector main part outside by lower supreme cover, and the external diameter of lower sheath is less than the internal diameter of last sheath, goes up the bleeder vent on sheath and the lower sheath, a screw hole has respectively been seted up at the current conducting plate both ends, the lower wiring double-screw bolt spiro union of sheath protector main part is in the screw hole of current conducting plate one end, the screw hole of the current. The sheath protector has high safety, is convenient to master the activity rule of the induction current in the cable sheath, and ensures the safety of cable transmission.
Description
Technical Field
The utility model relates to a cable accessories technical field, concretely relates to cable sheath protector.
Background
In recent years, with the development of modern industry, power cables are used more and more in cities, the problem of insulation protection of cable sheaths is urgently needed to be solved in the power department, and the manufacturing department is continuously required to provide safe and reliable cable sheath protectors. The cable sheath protector can ensure safe power supply of the cable, prolong the service life of the cable, improve the economic value and the transmission capacity of the cable, reduce the overvoltage of the sheath to the ground, avoid the breakdown of an outer protective layer and ensure the reliable operation of the cable.
The outer insulation of the cable sheath overvoltage protector usually adopts porcelain bushing or silicon rubber, and the protection unit usually adopts zinc oxide nonlinear resistance card. The sheath protector is assembled in a cable grounding box (a cross interconnection box, a hybrid grounding box and the like) or at the terminal part of a cable, and is used for limiting the power frequency induction voltage of the cable sheath; the weak and quick impact overvoltage and power frequency overvoltage in the metal protective layer of the cable conductor have small resistance when the circuit runs abnormally and is struck by external lightning, so that abnormal current enters the ground under the action of the protector, and the insulating effect of the outer protective layer of the cable is realized.
The cable sheath protector has a bearing limit according to design parameters, when bearing excessive impact (operation overvoltage, lightning stroke induced overvoltage and the like), the sheath protector can conduct large leakage current, the sheath protector is easy to explode, most of the explosion occurs on the side surface of the sheath protector, fragments generated after explosion can damage surrounding power distribution equipment, and in the daily sheath circulating current live detection and partial discharge live detection processes, the sheath protector can be directly exposed to detection personnel, and the explosion of the sheath protector can also cause damage to the detection personnel; moreover, the current cable sheath protector does not have a discharge counting function, and cannot better master the activity rule of induced current, monitor the service life of the sheath protector and research the operation condition of the cable under the action of induced voltage.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the above-mentioned problem that exists, designed a cable sheath protector, this sheath protector security is high, damages equipment and harm measurement personnel safety around can avoiding the sheath protector explosion, conveniently masters the activity law of induction current in the cable sheath, improves the life of sheath protector, guarantees cable transmission safety.
In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a realize through following technical scheme:
a cable sheath protector comprises a sheath protector main body, an upper wiring stud and a lower wiring stud which are respectively arranged at the upper end and the lower end of the sheath protector main body, and further comprises an explosion-proof sheath, a current conducting plate and a discharge counter, wherein the explosion-proof sheath comprises an upper sheath and a lower sheath, the upper sheath is a cylindrical structure made of silicon rubber, a top cover is integrally formed at the top of the upper sheath, an upper through hole for the upper wiring stud to pass through is formed in the middle of the top cover, the upper sheath is sleeved outside the sheath protector main body from top to bottom, the upper sheath and the sheath protector main body are fixedly connected through a first fastening nut screwed on the upper wiring stud, the lower sheath is a cylindrical structure made of silicon rubber, a bottom plate is integrally formed at the bottom of the lower sheath, a lower through hole for the lower wiring stud to pass through is formed in the middle of the bottom plate, the external diameter of sheath is less than the internal diameter of last sheath down, through the second fastening nut fixed connection of spiro union on wiring double-screw bolt down between sheath and the sheath protector main part down, the length of going up sheath and sheath down all equals the length of sheath protector main part, go up the bleeder vent on sheath and the lower sheath and all seted up, a screw hole has respectively been seted up at the current conducting plate both ends, the lower wiring double-screw bolt spiro union of sheath protector main part is in the threaded hole of current conducting plate one end, the screw hole of the current conducting plate other end passes through screw and the high-pressure wiring end fixed connection of the counter that discharges.
Further, steel rings are buried in the bottom of the upper sheath and the top of the lower sheath.
Furthermore, the aperture of the air holes is 3-5mm, and a plurality of air holes are uniformly distributed on the side walls of the upper sheath and the lower sheath.
Further, the discharge counter is a JSY-8 type discharge counter.
The utility model has the advantages that: the protective layer protector is high in safety, the anti-explosion sheath is arranged on the outer side of the protective layer protector main body and comprises an upper sheath and a lower sheath, the upper sheath and the lower sheath are simple to install, two protective layers are formed on the side surface of the protective layer protector main body after installation, the protective strength is improved, the air holes are formed in the upper sheath and the lower sheath, hot air generated by explosion can be quickly discharged, explosion fragments are limited in the anti-explosion sheath, and the explosion fragments are prevented from damaging surrounding equipment and harming the safety of detection personnel; the activity rule of the induction current in the cable sheath can be better mastered by arranging the discharge counter, the service life of the sheath protector is prolonged, and the cable transmission safety is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the upper sheath of the present invention;
fig. 3 is a cross-sectional view of the lower sheath of the present invention;
fig. 4 is a schematic diagram of the current conducting plate of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-protective layer protector main body, 2-upper wiring stud, 21-first fastening nut, 3-lower wiring stud, 31-second fastening nut, 4-upper sheath, 41-upper through hole, 5-lower sheath, 51-lower through hole, 6-conductive plate, 7-discharge counter, 71-high voltage terminal, 72-grounding terminal, 8-air hole and 9-steel ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, a cable sheath protector comprises a sheath protector main body 1, and an upper wiring stud 2 and a lower wiring stud 3 respectively arranged at the upper end and the lower end of the sheath protector main body 1, and further comprises an explosion-proof sheath, a conductive plate 6 and a discharge counter 7, wherein the explosion-proof sheath comprises an upper sheath 4 and a lower sheath 5, the upper sheath 4 is a cylindrical structure made of silicon rubber, a top cover is integrally formed at the top of the upper sheath 4, an upper through hole 41 for the upper wiring stud 2 to pass through is formed in the middle of the top cover, the upper sheath 4 is sleeved outside the sheath protector main body 1 from top to bottom, the upper sheath 4 and the sheath protector main body 1 are fixedly connected through a first fastening nut 21 screwed on the upper wiring stud 2, the lower sheath 5 is a cylindrical structure made of silicon rubber, and a bottom plate is integrally formed at the bottom of the lower, the bottom plate middle part is seted up the lower through-hole 51 that supplies down binding post 3 to pass, sheath 5 is established in the 1 outside of sheath protector main part by supreme cover down, the external diameter of sheath 5 is less than the internal diameter of last sheath 4 down, and through the second fastening nut 31 fixed connection of spiro union on down binding post 3 between sheath 5 and the sheath protector main part 1 down, the length of going up sheath 4 and lower sheath 5 is equalling in the length of sheath protector main part 1, go up all seted up bleeder vent 8 on sheath 4 and the lower sheath 5, a screw hole has respectively been seted up at 6 both ends of current conducting plate, 3 spiro unions of down binding post of sheath protector main part 1 are in the threaded hole of 6 one ends of current conducting plate, the screw hole of the 6 other ends of current conducting plate passes through screw wiring end and the high-pressure.
Wherein, steel ring 9 has all been buried underground to upper sheath 4 bottom and lower sheath 5 top, can increase the intensity of upper sheath 4 and lower sheath opening part through burying steel ring 9 underground, and then increase the ability of shock resistance toughness.
Wherein, the aperture of the air holes 8 is 3-5mm, and a plurality of air holes 8 are uniformly distributed on the side walls of the upper sheath 4 and the lower sheath 5.
Wherein, the discharge counter 7 is a JSY-8 type discharge counter.
When in use, the cable sheath protector is placed in a cable grounding box or directly placed at a cable terminal, the conductive sheath of the cable is connected with the upper wiring stud 2 of the cable sheath protector through a lead, the grounding end 72 of the discharge counter 7 is grounded through the lead, and when induced current passes through the sheath protector main body in the use process, the counting can be carried out through the discharge counter 7, so that the activity rule of the induced current in the cable sheath can be better mastered, the service life of the sheath protector is prolonged, and the power transmission safety of the cable is ensured; if the cable bears excessive impact (operation overvoltage, lightning stroke induction overvoltage and the like) to cause the explosion of the main body 1 of the sheath protector, the explosion-proof sheath arranged on the outer side of the main body 1 of the sheath protector can prevent explosion fragments from damaging surrounding equipment and endangering the safety of detection personnel, and the safety of the cable sheath protector is improved.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should be able to make changes, alterations, additions or substitutions within the scope of the present invention.
Claims (4)
1. The utility model provides a cable sheath protector, includes sheath protector main part and sets up wiring double-screw bolt and lower wiring double-screw bolt on both ends about the sheath protector main part respectively, its characterized in that: the anti-explosion protector further comprises an anti-explosion sheath, a current-conducting plate and a discharge counter, wherein the anti-explosion sheath comprises an upper sheath and a lower sheath, the upper sheath is of a cylindrical structure made of silicon rubber, a top cover is integrally formed at the top of the upper sheath, an upper through hole for an upper wiring stud to pass through is formed in the middle of the top cover, the upper sheath is sleeved outside the main body of the protective layer protector from top to bottom, the upper sheath and the main body of the protective layer protector are fixedly connected through a first fastening nut screwed on the upper wiring stud, the lower sheath is of a cylindrical structure made of silicon rubber, a bottom plate is integrally formed at the bottom of the lower sheath, a lower through hole for a lower wiring stud to pass through is formed in the middle of the bottom plate, the lower sheath is sleeved outside the main body of the protective layer protector from bottom to top, the outer diameter of the lower sheath is smaller than, go up the length of sheath and sheath down and all equal the length of sheath protector main part, go up the sheath and all seted up the bleeder vent on the sheath down, a screw hole has respectively been seted up at the current conducting plate both ends, the lower binding stud spiro union of sheath protector main part is in the threaded hole of current conducting plate one end, the screw hole of the current conducting plate other end passes through screw and the high-voltage wiring end fixed connection of the counter that discharges.
2. The sheath protector of claim 1, wherein: and steel rings are embedded at the bottom of the upper sheath and the top of the lower sheath.
3. The sheath protector of claim 1, wherein: the aperture of the air holes is 3-5mm, and a plurality of air holes are uniformly distributed on the side walls of the upper sheath and the lower sheath.
4. The sheath protector of claim 1, wherein: the discharge counter is a JSY-8 type discharge counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872129.XU CN211125219U (en) | 2019-06-11 | 2019-06-11 | Cable sheath protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872129.XU CN211125219U (en) | 2019-06-11 | 2019-06-11 | Cable sheath protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211125219U true CN211125219U (en) | 2020-07-28 |
Family
ID=71698075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920872129.XU Active CN211125219U (en) | 2019-06-11 | 2019-06-11 | Cable sheath protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211125219U (en) |
-
2019
- 2019-06-11 CN CN201920872129.XU patent/CN211125219U/en active Active
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