CN115910448A - Low-smoke halogen-free anti-torsion anti-bending constant-temperature direct-current high-voltage cable - Google Patents
Low-smoke halogen-free anti-torsion anti-bending constant-temperature direct-current high-voltage cable Download PDFInfo
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- CN115910448A CN115910448A CN202211354245.5A CN202211354245A CN115910448A CN 115910448 A CN115910448 A CN 115910448A CN 202211354245 A CN202211354245 A CN 202211354245A CN 115910448 A CN115910448 A CN 115910448A
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Abstract
The invention discloses a low-smoke halogen-free anti-torsion and anti-bending constant-temperature direct-current high-voltage cable which comprises a cable body, wherein an outer sheath is arranged on the outer side of the cable body, an elastic steel wire capable of preventing torsion and bending of the constant-temperature direct-current high-voltage cable body during installation and pulling for use is arranged on the outer side of the outer sheath, and a sealing mechanism capable of increasing sealing effect when a rotary drum is connected with a threaded sleeve head is arranged on the inner side of the right end of the outer sheath on the right side. According to the invention, through the elastic steel wire, the outer sheath wrapped outside the cable body and the elastic resetting effect of the elastic steel wire are utilized, so that the cable body and the outer sheath can be effectively straightened by matching with the elastic resetting function of the elastic steel wire when the cable body and the outer sheath are pulled, and compared with the existing low-smoke halogen-free anti-torsion and anti-bending constant-temperature direct-current high-voltage cable, the problems of torsion and bending of the low-smoke halogen-free constant-temperature direct-current high-voltage cable during installation and pulling can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a low-smoke halogen-free torsion-resistant bending-resistant constant-temperature direct-current high-voltage cable.
Background
Low smoke and zero halogen cable is a very environmental protection's of a section cable, and the smoke intensity is good during the burning, no corrosive gas escapes, advantages such as long service life, by wide application in a plurality of fields, is used in outdoor constant temperature direct current high tension cable especially, nevertheless still has the defect in the current low smoke and zero halogen constant temperature direct current high tension cable use, just for example:
1. when the cable is installed and pulled outdoors, the cable is easy to twist and bend, so that the cable is cracked and broken, and the normal use of the constant-temperature direct-current high-voltage cable is not facilitated, so that the defects exist;
2. because the cable body is easy to corrode and damage when being used for a long time, the existing solution is to replace the whole cable, and the operation not only causes the waste of the whole cable, but also increases the labor amount of workers, thereby being imperfect;
therefore, it is necessary to provide a low smoke, zero halogen, torsion resistant, bending resistant constant temperature dc high voltage cable to solve the above technical problems.
Disclosure of Invention
The technical scheme of the invention provides a solution which is obviously different from the prior art aiming at the technical problem that the prior art solution is too single, and the specific purpose of the invention is as follows: in order to solve the problem that the cable body is easy to corrode and damage when being used for a long time, the whole cable is usually replaced by the conventional solution, the operation not only causes the waste of the whole cable, but also increases the labor amount of workers, and therefore the low-smoke halogen-free anti-torsion and anti-bending constant-temperature direct-current high-voltage cable is provided.
In order to achieve the purpose, the invention provides the following technical scheme: a low-smoke halogen-free torsion-resistant bending-resistant constant-temperature direct-current high-voltage cable comprises a cable body, wherein an outer sheath is arranged on the outer side of the cable body, an elastic steel wire capable of preventing torsion and bending of the constant-temperature direct-current high-voltage cable body during installation and pulling use is mounted on the outer side of the outer sheath, a fixing ring is bonded to the end portion of the outer sheath on the right side, a rotary drum is connected to the inner side of the fixing ring through a bearing, and a sealing mechanism capable of increasing sealing effect when the rotary drum is connected with a threaded sleeve head is arranged on the inner side of the right end of the outer sheath on the right side; sealing mechanism is including fixing in the left side the inboard gas injection section of thick bamboo of oversheath, just gas injection section of thick bamboo inboard is connected with the gas injection piston, both sides all run through and are connected with the breather pipe about the gas injection section of thick bamboo, just breather pipe end-to-end connection has the gasbag.
Preferably, the right side cable body outside is fixed with the annular strip, and left cable body right-hand member installs the screw thread pullover, the pullover inboard of screw thread be provided with the right side the circular electrically conductive socket of the inboard fibre core circular current-carrying of cable body, and with the right side the cable body fibre core electrically conductive head is the block structure, the design of above-mentioned structure, through the circular electrically conductive socket of the inboard circular electricity-carrying of pullover, can effectually be fixed with the electrically conductive plug block of new cable body left end to play the effect of transmission current.
Preferably, the elastic steel wire is the spring shape, and the design of above-mentioned structure can effectually avoid low smoke and zero halogen constant temperature direct current high tension cable to appear promptly twisting and crooked problem when the installation with dragging the use through the elastic steel wire.
Preferably, the gas injection cylinder is connected with the gas injection piston in a sealing sliding manner, and the gas injection cylinder can be effectively injected with gas through the leftward movement of the gas injection piston due to the structural design.
The groove is formed in the outer side of the rotary drum, and the rotary drum can be effectively assisted to rotate by means of the matching of the groove and the annular strip.
Preferably, the gasbag with the recess all is the annular form, just the gasbag outside with the recess constitutes the block structure, and the design of above-mentioned structure through the gas injection effect of gas injection section of thick bamboo, can effectually cooperate the connecting pipe to make the gasbag take place the inflation to make the effectual and the sealed block of draw-in groove of expanded gasbag fixed, and then the effectual cable body of having avoided is changed the problem that the installation back appears the infiltration in the rainy day.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the elastic steel wire is arranged, the outer sheath wrapped outside the cable body and the elastic resetting effect of the elastic steel wire are utilized, the cable body and the outer sheath can be effectively straightened by matching the elastic resetting function of the elastic steel wire when the cable body and the outer sheath are pulled, and the problems of torsion and bending of the low-smoke halogen-free constant-temperature direct-current high-voltage cable during installation and pulling can be effectively avoided when the low-smoke halogen-free constant-temperature direct-current high-voltage cable is installed and pulled;
2. the invention is provided with the rotary drum and the sealing mechanism, and the rotary drum is connected and fixed by the internal thread of the rotary drum matched with the external thread of the thread sleeve head, so that when the annular strip and the groove are matched for rotating and locking, and meanwhile, the gas injection piston is extruded by the rotary drum, and the gas injection cylinder is matched with the vent pipe to inject gas to the inner side of the gas bag, so that the gas bag is effectively expanded and is sealed and attached to the inner side of the clamping groove of the rotary drum to increase the sealing property between the gas bag and the groove.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a low-smoke, halogen-free, torsion-resistant, bending-resistant, constant-temperature, direct-current, high-voltage cable according to the present invention;
FIG. 2 is a schematic view of the mounting structure of the gas injection cylinder and the gas injection piston shown in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at A shown in FIG. 1;
fig. 4 is an enlarged schematic view of the structure at B in fig. 1.
In the figure: 1. a cable body; 101. an annular strip; 102. threading a sleeve head; 2. an outer sheath; 201. an elastic steel wire; 3. a fixing ring; 4. a rotating drum; 401. a groove; 5. a sealing mechanism; 501. an air injection cylinder; 502. a gas injection piston; 503. a breather pipe; 504. an air bag.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an embodiment of the present invention is shown: the utility model provides a low smoke and zero halogen antitorque commentaries on classics, anti crooked constant temperature direct current high tension cable, including cable body 1, annular strip 101, thread sleeve head 102, oversheath 2, elastic steel wire 201, solid fixed ring 3, rotary drum 4, recess 401, sealing mechanism 5, annotate the inflator 501, gas injection piston 502, breather pipe 503 and gasbag 504, the cable body 1 outside is provided with oversheath 2, the 2 tip bonds of oversheath on right side has solid fixed ring 3, solid fixed ring 3 inboard bearing connection has rotary drum 4, and 2 right-hand member inboards of oversheath on right side are provided with can increase sealing effect's sealing mechanism 5 when being connected to rotary drum 4 and thread sleeve head 102.
Example 1
Referring to fig. 1-4, the sealing mechanism 5 includes an air injection cylinder 501 fixed on the inner side of the left outer sheath 2, the inner side of the air injection cylinder 501 is connected with an air injection piston 502, the upper and lower sides of the air injection cylinder 501 are connected with vent pipes 503 in a penetrating manner, the tail end of the vent pipe 503 is connected with an air bag 504, the inner side of the air injection cylinder 501 and the outer side of the air injection piston 502 form a sealed sliding connection, the outer side of the rotary drum 4 is provided with a groove 401, the air bag 504 and the groove 401 are both in a ring shape, and the outer side of the air bag 504 and the groove 401 form a clamping structure; after the cable body 1 in a damaged area is disassembled, a new cable body 1 needs to be installed and replaced at the moment, the rotary drum 4 is connected and fixed through the external thread of the thread sleeve head 102 matched with the internal thread of the rotary drum 4, when the rotary drum 4 is matched with the annular strip 101 and the groove 401 and is rotated and locked, the rotary drum 4 extrudes the left gas injection piston 502, and the outer side of the gas injection piston 502 is in sealed sliding connection with the inner side of the gas injection cylinder 501, so when the gas injection piston 502 is extruded, the gas injection cylinder 501 is matched with the vent pipe 503 to inject gas to the inner side of the gas bag 504, the gas bag 504 is effectively expanded and is in sealed fit with the inner side of the clamping groove of the rotary drum 4 to increase the sealing property between the gas injection piston and the gas injection cylinder, the structure effectively avoids the problem of water seepage in rainy days after the replacement and installation of the cable body 1, can also increase the utilization duration of the whole cable body 1, and meanwhile, the bearing connection of the rotary drum 4 and the fixing ring 3 is utilized, and the problem of torsion resistance of the cable body 1 in outdoor installation and pulling and use can be further caused;
example 2
Referring to fig. 1, the difference from embodiment 1 is: the outer side of the outer sheath 2 is provided with an elastic steel wire 201 which can prevent torsion and bending when the constant-temperature direct-current high-voltage cable body 1 is installed and pulled for use, the elastic steel wire 201 is in a spring shape, the outer side of the right-side cable body 1 is fixed with an annular strip 101, the right end of the left-side cable body 1 is provided with a thread sleeve head 102, the inner side of the thread sleeve head 102 is provided with a round conductive socket which is electrified with the inner side fiber core of the right-side cable body 1, the thread sleeve head and the fiber core conductive head of the right-side cable body 1 are in a clamping structure, in order to prevent the low-smoke zero-halogen constant-temperature direct-current high-voltage cable from generating torsion and bending problems when the low-smoke zero-halogen constant-temperature high-voltage cable is installed and pulled for use, the solution is as shown as follows, the elastic steel wire 201 is installed on the outer side of the outer sheath 2, the elastic reset function of the elastic steel wire 201 installed on the outer side of the outer sheath 2 is utilized, the cable body 1 and the outer sheath 2 is pulled for use, and the cable body 1 and the outer sheath 2 is straightened, thereby effectively avoiding the problems of torsion and bending when the low-smoke zero-halogen constant-temperature direct-voltage cable is installed and pulled for use.
The working principle is as follows: as shown in fig. 1, in order to prevent the low-smoke halogen-free constant-temperature direct-current high-voltage cable from twisting and bending when being installed and pulled for use outdoors, the solution is as follows, an elastic steel wire 201 is installed on the outer side of an outer sheath 2 wrapped on the outer side of a cable body 1, and the elastic steel wire 201 is in a spring shape, when the cable body 1 and the outer sheath 2 are pulled, the cable body 1 and the outer sheath 2 can be straightened by utilizing the elastic reset function of the elastic steel wire 201 installed on the outer side of the outer sheath 2, so that the problems of twisting and bending when the low-smoke halogen-free constant-temperature direct-current high-voltage cable is installed and pulled for use can be effectively avoided;
when the whole cable has the problem of local corrosion damage in the outdoor long-term use process, the local cable needs to be disassembled and replaced at the moment, as shown in the step shown in fig. 1, firstly, the rotary drum 4 is manually rotated, and at the moment, the left end of the rotary drum 4 is matched with the internal thread of the rotary drum to be separated from the external thread of the thread sleeve head 102, so that the conductive plug of the right cable body 1 is disassembled from the conductive socket on the inner side of the left cable body 1, and the cable corrosion damage area can be effectively and quickly disassembled by the method, so that the overall convenience is improved;
after the cable body 1 in a damaged area is detached, a new cable body 1 needs to be installed and replaced at the moment, the steps are shown in fig. 1-4, the rotary drum 4 is connected and fixed through the external thread of the threaded sleeve head 102 in a matched mode through the internal thread of the rotary drum 4, when the rotary drum 4 is matched with the annular strip 101 and the groove 401 to be locked in a rotating mode, the rotary drum 4 can extrude the air injection piston 502 on the left side, the outer side of the air injection piston 502 is connected with the inner side of the air injection cylinder 501 in a sealing and sliding mode, when the air injection piston 502 is extruded, air can be injected into the air bag 504 through the air pipe 503 matched with the air injection cylinder 501, the air bag 504 can be effectively expanded and is attached to the inner side of the clamping groove of the rotary drum 4 in a sealing mode to improve the sealing performance between the air bag and the air injection piston and the air injection cylinder, the structure effectively avoids the problem that water seepage occurs in rainy days after the cable body 1 is replaced and installed, the whole cable body 1 can be used for a long time, meanwhile, the rotary drum 4 is connected with a bearing of the fixing ring 3, and the cable body 1 can further achieve the problem of torsion resistance when the cable body is installed and pulled and used outdoors.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a low smoke and zero halogen antitorque commentaries on classics, anti crooked constant temperature direct current high tension cable, includes cable body (1), its characterized in that: an outer sheath (2) is arranged on the outer side of the cable body (1), an elastic steel wire (201) capable of preventing torsion and bending of the constant-temperature direct-current high-voltage cable body (1) during installation and pulling use is installed on the outer side of the outer sheath (2), a fixing ring (3) is bonded to the end portion of the outer sheath (2) on the right side, a rotary drum (4) is connected to the inner side of the fixing ring (3) in a bearing mode, and a sealing mechanism (5) capable of increasing sealing effect when the rotary drum (4) is connected with a threaded sleeve head (102) is arranged on the inner side of the right end of the outer sheath (2) on the right side;
sealing mechanism (5) is including fixing the left side gas injection section of thick bamboo (501) of oversheath (2) inboard, just gas injection section of thick bamboo (501) inboard is connected with gas injection piston (502), both sides all run through and are connected with breather pipe (503) about gas injection section of thick bamboo (501), just breather pipe (503) end-to-end connection has gasbag (504).
2. The low-smoke halogen-free torsion-resistant bending-resistant constant-temperature direct-current high-voltage cable according to claim 1, characterized in that: the cable comprises a right-side cable body (1), wherein an annular strip (101) is fixed on the outer side of the cable body (1), a thread sleeve head (102) is installed at the right end of the cable body (1) on the left side, a round conductive socket which is electrified with a right side fiber core on the inner side of the cable body (1) is arranged on the inner side of the thread sleeve head (102), and the round conductive socket and the right side fiber core conductive head on the cable body (1) are of a clamping structure.
3. The low-smoke halogen-free torsion-resistant bending-resistant constant-temperature direct-current high-voltage cable according to claim 1, characterized in that: the elastic steel wire (201) is in a spring shape.
4. The low-smoke halogen-free torsion-resistant bending-resistant constant-temperature direct-current high-voltage cable according to claim 1, characterized in that: the groove (401) is formed in the outer side of the rotary drum (4).
5. The low-smoke halogen-free anti-torsion anti-bending constant-temperature direct-current high-voltage cable according to claim 1 is characterized in that: the inner side of the gas injection cylinder (501) and the outer side of the gas injection piston (502) form sealed sliding connection.
6. The low-smoke zero-halogen torsion-resistant bending-resistant constant-temperature direct-current high-voltage cable according to claim 4, characterized in that: the air bag (504) and the groove (401) are both annular, and the outer side of the air bag (504) and the groove (401) form a clamping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211354245.5A CN115910448A (en) | 2022-11-01 | 2022-11-01 | Low-smoke halogen-free anti-torsion anti-bending constant-temperature direct-current high-voltage cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211354245.5A CN115910448A (en) | 2022-11-01 | 2022-11-01 | Low-smoke halogen-free anti-torsion anti-bending constant-temperature direct-current high-voltage cable |
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| Publication Number | Publication Date |
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| CN115910448A true CN115910448A (en) | 2023-04-04 |
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| CN202211354245.5A Pending CN115910448A (en) | 2022-11-01 | 2022-11-01 | Low-smoke halogen-free anti-torsion anti-bending constant-temperature direct-current high-voltage cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116344105A (en) * | 2023-04-06 | 2023-06-27 | 温州新印像电气有限公司 | High-altitude swing-reducing cable |
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2022
- 2022-11-01 CN CN202211354245.5A patent/CN115910448A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116344105A (en) * | 2023-04-06 | 2023-06-27 | 温州新印像电气有限公司 | High-altitude swing-reducing cable |
| CN116344105B (en) * | 2023-04-06 | 2024-01-09 | 固达电线电缆(集团)有限公司 | High-altitude swing-reducing cable |
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