CN116581700B - Cable protection tube - Google Patents
Cable protection tube Download PDFInfo
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- CN116581700B CN116581700B CN202310855264.4A CN202310855264A CN116581700B CN 116581700 B CN116581700 B CN 116581700B CN 202310855264 A CN202310855264 A CN 202310855264A CN 116581700 B CN116581700 B CN 116581700B
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- circuit board
- conductive
- block
- auxiliary
- cable
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- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Abstract
The invention discloses a cable protection tube, which comprises a tube body through which a cable passes, wherein the tube body comprises a left end disc, a right end disc and connecting pieces, transverse travel rods are arranged between the adjacent connecting pieces, and a moving assembly capable of being attached to the periphery of the cable and moving transversely along the cable is arranged on the travel rods and can drive the whole tube body to move transversely along the cable; the left end of the left end disc is provided with an extension circular ring in an extending mode, a wire passing hole, a main circuit board and a longitudinal slot are formed in the extension circular ring, a secondary circuit board is detachably inserted in the longitudinal slot, a partial discharge sensor is arranged on the secondary circuit board, and a through hole is formed in the extension circular ring. The invention has the following advantages and effects: the whole pipe body can be driven to move along the cable through the arranged moving assembly, so that the cost expenditure is very low, and the resources are saved; the partial discharge sensor has the advantage of convenient installation/disassembly.
Description
Technical Field
The invention relates to the field of cables, in particular to a cable protection tube.
Background
At present, along with the development of scientific technology, the fields of industry and the like are rapidly advanced, and the increase of the consumption of cables is brought along, the cables are generally cables similar to ropes formed by twisting at least two wires in each group, each group of wires are mutually insulated and are often twisted around a center, the whole outside is covered with a high-insulation coating layer, the types of the cables are many, and the cables can be applied to various fields and have different use environments in different fields, so that the cables have different requirements.
In the power transmission process of the existing cable, the insulation capability of the cable is reduced due to the influence of various reasons (effects of electric field force and current, manufacturing process defects, construction damage, water inflow, gas corrosion, external force damage and the like), so that partial discharge caused by the partial insulation defects occurs, for example, the partial discharge exists for a long time, and the partial discharge is very easy to develop into breakdown so as to influence the normal use of the power cable, and even induce accidents. Therefore, a cable protection tube can be arranged outside the cable, and the cable protection tube can be timely reminded when partial discharge occurs to the cable, so that a warning effect is achieved; a partial discharge sensor model iHFCT-54 is typically used to detect partial discharge conditions. For the cable protection tube:
(1) on the premise of adapting to long cables, the number of partial discharge sensors and related electronic elements needs to be reduced as much as possible so as to reduce cost expenditure;
(2) as the partial discharge sensor of the sensitive electronic element has the defect of easy damage, a structure which is convenient for installing/detaching the partial discharge sensor is required to be designed so as to provide convenience for subsequent periodical maintenance.
Disclosure of Invention
The invention aims to provide a cable protection tube to solve the problems in the background art.
The technical aim of the invention is realized by the following technical scheme: the cable protection tube comprises a tube body through which a cable passes, wherein the tube body is hollow, the tube body consists of a left end disc and a right end disc which are longitudinally arranged, and the left end disc and the right end disc are connected through three groups of connecting pieces which are regularly distributed; each group of connecting pieces consists of two connecting plates which are transversely arranged, two ends of each connecting plate are respectively fixed on a left end disc and a right end disc, the two connecting plates are perpendicular to the left end disc and the right end disc, and a plurality of supporting connecting rods are regularly arranged between the two connecting plates;
a transverse travel rod is arranged between two adjacent groups of connecting pieces, and the travel rod is consistent with the arrangement direction of the cable; two fixing clamping plates are fixedly arranged on the inner sides of the left end disc and the right end disc, a clamping cavity for the end parts of the travel rod to extend in is formed between the two fixing clamping plates, and after the two end parts of the travel rod extend into the clamping cavity, the purpose of fixing the travel rod is achieved by screwing in a screw;
a moving assembly capable of being attached to the periphery of the cable and transversely moving along the cable is arranged on each travel rod, and the three moving assemblies can drive the whole pipe body to transversely move along the cable;
an extension circular ring is arranged at the left end of the left end circular disc in an extending manner, and a wire passing hole for a cable to pass through is formed in the extension circular ring; the extension ring is internally provided with a longitudinal slot, a secondary circuit board is detachably inserted in the longitudinal slot, a local discharge sensor with the model of iHFCT-54 is arranged on the secondary circuit board, and the secondary circuit board can form conductive insertion with the main circuit board after being inserted into the longitudinal slot;
and a through hole is formed in the extending circular ring and is communicated with the wire through hole, and after the secondary circuit board and the main circuit board form conductive insertion, the partial discharge sensor extends into the through hole.
The further arrangement is that: the movable assembly comprises a movable base, the movable base is attached to the periphery of the cable, a crawler belt for movement is arranged on the movable base, and a plurality of damping bulges are regularly arranged on the outer side of the crawler belt; two groups of hinge groups are arranged between the movable base and the travel bar, each group of hinge groups comprises two hinge arms which are respectively arranged at two sides of the movable base, one end of each hinge arm is connected with the movable base through a pin shaft, and the other end of each hinge arm is connected with the travel bar through a pin shaft; the two sides of the movable base are fixedly provided with first external expansion rods, the first external expansion rods are hinged with force application push-pull rods, and the force application push-pull rods are not contacted with the hinged arms;
the stroke rod is provided with a transverse stroke guide hole, a sliding block capable of transversely sliding along the stroke guide hole is arranged on the stroke guide hole, second outer expansion rods are fixedly arranged on two sides of the sliding block, and the other end part of the force application push-pull rod is hinged to the second outer expansion rods; a transverse small cylinder is fixedly arranged on the travel rod, and an output shaft of the small cylinder is fixed on the sliding block to provide a driving force for transverse movement for the sliding block;
the inner side of the crawler belt is regularly provided with a plurality of concave contact grooves, the inside of the movable base is rotationally provided with a driving wheel, the periphery of the driving wheel is regularly provided with contact protrusions matched with the concave contact grooves, and the crawler belt is driven to move based on the rotation of the driving wheel; and a driving motor for providing driving force for the driving wheel is arranged outside the movable base.
The further arrangement is that: a plurality of driving wheels are rotatably arranged in the movable base.
The further arrangement is that: an inner placing groove is formed in the upper end of the extending circular ring, and the main circuit board is placed in the inner placing groove; the upper end cover plate is detachably arranged at the upper end of the extension circular ring, the upper end cover plate is arranged on the inner placing groove to limit the main circuit board, and the upper end cover plate and the extension circular ring are fixed through a first bolt; the right end part of the upper end cover plate is provided with a middle stop block extending downwards;
the right end of the main circuit board is fixedly provided with a transverse extension section which extends into the longitudinal slot; the side, facing the longitudinal slot, of the extension ring and the middle stop block is provided with a first limit step and a second limit step respectively, and the auxiliary circuit board is propped against the first limit step and the second limit step after being inserted into the longitudinal slot, so that the auxiliary circuit board has a limit effect; and an inward sinking slot into which the second limiting step extends is formed in one side, close to the middle stop block, of the secondary circuit board.
The further arrangement is that: three conductive inserting blocks are regularly arranged on the transverse extension section, three conductive inserting rods are arranged at the lower end of the secondary circuit board, and the three conductive inserting rods can be respectively inserted into the corresponding three conductive inserting blocks to realize conductive connection;
the lower end of the left half part of the main circuit board is provided with a positioning concave with a semicircular section, and the extending circular ring is fixedly provided with a positioning bulge corresponding to the positioning concave.
The further arrangement is that: the conductive plug block is internally provided with an inner cavity, the upper end of the conductive plug block is provided with a jack communicated with the inner cavity and used for inserting a corresponding conductive plug rod, the two sides of the inner cavity are respectively provided with a conductive arm, and the end parts of the conductive arms extend out of the conductive plug block and are welded on the main circuit board; the small-sized spring is arranged between the conductive arm and the inner cavity wall in a compressed mode, and the conductive arm is pushed to be in contact with the conductive inserted rod inserted into the inner cavity through the elastic acting force of the small-sized spring, so that stable conductive connection is formed.
The further arrangement is that: the conductive plug is internally and fixedly provided with a limiting block which can be propped against the conductive arm to play a limiting role.
The further arrangement is that: the lower end of the conductive inserted link is fixedly provided with a contact end with a semicircular section.
The further arrangement is that: an auxiliary top plate is arranged on the right side of the upper end cover plate, and the auxiliary top plate and the upper end cover plate are fixed through a second bolt; a spacing cavity is formed between the auxiliary top plate and the upper end cover plate, the spacing cavity is communicated with the longitudinal slot, a limit slide block is slidably arranged in the spacing cavity, an inner spring is arranged between the limit slide block and the left side wall of the spacing cavity in a compression mode, the limit slide block is pushed to move towards the longitudinal slot by the inner spring, and the limit slide block can be pressed on the upper end face of the auxiliary circuit board which is completely inserted into the longitudinal slot so as to play a role in preventing the auxiliary circuit board from being separated from the longitudinal slot;
the end face of one side of the limit sliding block, which faces the longitudinal slot, is provided with an inclined guide surface, and the auxiliary circuit board can contact with the inclined guide surface and push away the limit sliding block in the process of being inserted into the longitudinal slot;
an auxiliary groove is formed in the auxiliary top plate, a longitudinal limit auxiliary block is arranged in the auxiliary groove, a contact surface matched with the inclined guide surface is arranged on the lower end face of the limit auxiliary block, an L-shaped abutting block is fixedly arranged at the left end of the limit auxiliary block, the L-shaped abutting block comprises a first straight line section and a second straight line section which are mutually fixed, the first straight line section is transversely arranged, the second straight line section is longitudinally arranged, a concave limit groove is formed among the first straight line section, the second straight line section and the limit auxiliary block, and a limit top block which can extend into the limit groove is fixedly arranged in the auxiliary top plate; when the limiting ejector block is propped against the limiting groove, the contact surface of the limiting auxiliary block is contacted with the inclined guide surface, so that the limiting sliding block is prevented from falling out of the spacing cavity;
the upper end of the auxiliary groove is communicated with the outside of the auxiliary top plate, the limiting auxiliary block can be stressed to move downwards, and then the limiting sliding block is separated from the auxiliary circuit board, so that the auxiliary circuit board can be normally pulled out from the longitudinal slot.
The invention has the beneficial effects that:
the connecting plate arranged on the pipe body plays a role in connecting the left end disc and the right end disc, so that the whole pipe body is stable in structure; the travel rod arranged on the pipe body is used for installing a moving assembly, and the whole pipe body can be driven to transversely move along the cable through the arranged moving assembly; meanwhile, a partial discharge sensor with the model of iHFCT-54 is arranged on the pipe body, so that the partial discharge sensor can move along the cable along with the movement of the pipe body. Compared with the traditional fixed-point fixed detection mode, the invention has the advantages of mobility, periodic detection of the whole cable can be carried out only by arranging a single partial discharge sensor, tens or even hundreds of partial discharge sensors and related electronic elements are not needed, the cost expenditure is very low, and the resources are saved.
In the invention, main electronic components are arranged on a main circuit board, and a partial discharge sensor is arranged on a secondary circuit board; from this can realize conductive connection through the plug-in of main circuit board and vice circuit board, only need extract after the partial discharge sensor sensitivity decline or damage vice circuit board maintenance can, can not lead to the fact the influence to the main circuit board, can effectively avoid the main circuit board to take place the pad when dismantling electronic component and drop and unable condition that continues to use.
In the invention, the through holes are arranged, so that the partial discharge sensor can be in face-to-face contact with the cable, and the monitoring effect is better.
The moving assembly comprises a moving base, wherein a crawler belt on the moving base can move along a cable; the movable base can move close to or away from the cable due to the arrangement of the hinge arm, and the driving force of the movement close to or away from the cable can be provided for the movable base due to the arrangement of the force application push-pull rod and the small-sized drive; the arrangement of the travel guide hole and the sliding block can play a limiting role; through above-mentioned setting, let remove the cable of the different width of subassembly effective adaptation, the suitability is very strong.
According to the invention, the crawler belt is driven to move by the cooperation of the contact convex and the concave contact grooves, and the plurality of driving wheels in the base are moved to improve the stability of crawler belt movement.
In the invention, an inner placing groove is arranged at the upper end of the extending circular ring to install the main circuit board, and the main circuit board is limited by arranging an upper end cover plate; for the auxiliary circuit board, the position of the auxiliary circuit board in the longitudinal slot is limited by arranging a first limiting step and a second limiting step; the three conductive inserting rods can be respectively inserted into the corresponding three conductive inserting blocks to realize conductive connection.
The main circuit board is better limited by the positioning concave, and the position of the main circuit board can be prevented from being reversed.
In order to enhance the stability of the conductive contact of the conductive insert rod in the conductive insert block, the conductive arm and the small spring are arranged in the conductive insert block, and the conductive arm is pushed to be in contact with the conductive insert rod inserted into the inner cavity by the elastic acting force of the small spring so as to form stable conductive connection. Meanwhile, the limiting jacking block is arranged to prop against the conductive arm to play a limiting role.
The lower end of the conductive inserting rod is provided with the contact end with the semicircular cross section, so that the conductive arm can be pushed away better when the conductive inserting rod is inserted into the conductive inserting block, and the insertion process of the conductive inserting rod is smoother and more stable.
In the invention, the upper end of the upper end cover plate is provided with the auxiliary top plate, a spacing cavity is formed between the auxiliary top plate and the upper end cover plate, the spacing slide block and the inner spring are arranged in the spacing cavity, the spacing slide block is pushed to move towards the longitudinal slot by the inner spring, and the spacing slide block can be pressed on the upper end surface of the secondary circuit board which is completely inserted into the longitudinal slot so as to play a role in preventing the secondary circuit board from falling out of the longitudinal slot; the inclined guide surface arranged on the limit sliding block can better contact with the auxiliary circuit board; the limiting top block and the limiting groove can be propped against each other to prevent the limiting sliding block from falling out of the spacing cavity; the upper end of the auxiliary groove is communicated with the outside of the auxiliary top plate, and a user can press down the limit auxiliary block through fingers or a rod body so as to push the limit sliding block to move inwards, so that the limit sliding block can be separated from the auxiliary circuit board, and the auxiliary circuit board can be normally pulled out from the longitudinal slot.
Drawings
FIG. 1 is a schematic diagram of an embodiment;
fig. 2 is an enlarged view of a portion a in fig. 1;
FIG. 3 is a schematic view illustrating an internal structure of a mobile base according to an embodiment;
fig. 4 is an enlarged view of a portion B in fig. 3;
fig. 5 is an enlarged view of a portion C in fig. 1;
fig. 6 is an enlarged view of the portion D in fig. 5;
fig. 7 is an enlarged view of the portion E in fig. 6.
In the figure: 11. a left end disk; 12. a right end disc; 13. a connecting plate; 14. a support connecting rod; 15. extending the circular ring; 21. a travel bar; 22. a fixed clamping plate; 23. a travel guide hole; 24. a sliding block; 25. a second outer expansion rod; 26. a small cylinder; 31. a moving base; 32. a track; 321. damping protrusion; 322. a concave contact groove; 33. an articulated arm; 35. a first outer expansion rod; 36. a force-applying push-pull rod; 37. a driving wheel; 371. a contact protrusion; 38. a driving motor; 39. a driving wheel; 41. a main circuit board; 42. a laterally extending section; 43. a conductive insert; 44. positioning the concave; 51. a longitudinal slot; 52. a through hole; 61. a secondary circuit board; 62. a partial discharge sensor; 63. a conductive plunger; 71. an inner placement groove; 72. an upper end cover plate; 721. an intermediate stop; 73. a first bolt; 741. a first limit step; 742. a second limit step; 81. an inner cavity; 82. a jack; 83. a conductive arm; 84. a small spring; 85. a limiting block; 86. a contact end; 91. an auxiliary top plate; 92. a second bolt; 93. a compartment; 94. a limit sliding block; 941. an inclined guide surface; 95. an inner spring; 96. an auxiliary groove; 97. a limit auxiliary block; 981. a first straight line segment; 982. a second straight line segment; 99. and limiting the top block.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 7;
the embodiment discloses a cable protection tube, which comprises a tube body through which a cable passes, wherein the tube body is hollow, the tube body consists of a left end disc 11 and a right end disc 12 which are longitudinally arranged, and the left end disc 11 and the right end disc 12 are connected through three groups of connecting pieces which are regularly distributed; each group of connecting pieces consists of two connecting plates 13 which are transversely arranged, two ends of the two connecting plates 13 are respectively fixed on a left end disc 11 and a right end disc 12, the two connecting plates 13 are perpendicular to the left end disc 11 and the right end disc 12, and a plurality of supporting connecting rods 14 are regularly arranged between the two connecting plates 13;
a transverse travel rod 21 is arranged between two adjacent groups of connecting pieces, and the travel rod 21 is consistent with the arrangement direction of the cable; two fixing clamping plates 22 are fixedly arranged on the inner sides of the left end disc 11 and the right end disc 12, a clamping cavity for the end parts of the travel rod 21 to extend in is formed between the two fixing clamping plates 22, and after the two end parts of the travel rod 21 extend into the clamping cavities, the purpose of fixing the travel rod 21 is achieved by screwing in screws;
a moving assembly capable of being attached to the periphery of the cable and moving transversely along the cable is arranged on each travel bar 21, and the three moving assemblies can drive the whole pipe body to move transversely along the cable;
an extension circular ring 15 is arranged at the left end of the left end disc 11 in an extension manner, and a wire passing hole for a cable to pass through is formed in the extension circular ring 15; the extension ring 15 is internally and fixedly provided with a main circuit board 41, the extension ring 15 is internally provided with a longitudinal slot 51, a secondary circuit board 61 is detachably inserted in the longitudinal slot 51, a local discharge sensor 62 with the model of iHFCT-54 is arranged on the secondary circuit board 61, and the secondary circuit board 61 can form conductive insertion with the main circuit board 41 after being inserted into the longitudinal slot 51; at least an STM8 singlechip and a commercially available communication chip are arranged on the main circuit board 41;
the extending ring 15 is provided with a through hole 52, the through hole 52 is communicated with the wire through hole, and after the secondary circuit board 61 and the main circuit board 41 form conductive insertion, the partial discharge sensor 62 extends into the through hole 52.
The movable assembly comprises a movable base 31, wherein the movable base 31 is attached to the periphery of a cable, a crawler belt 32 for movement is arranged on the movable base 31, and a plurality of damping bulges 321 are regularly arranged on the outer side of the crawler belt 32; two groups of hinge groups are arranged between the moving base 31 and the travel bar 21, each group of hinge groups comprises two hinge arms 33 respectively arranged at two sides of the moving base 31, one end of each hinge arm 33 is connected with the moving base 31 through a pin shaft, and the other end is connected with the travel bar 21 through a pin shaft; the two sides of the movable base 31 are fixedly provided with a first external expansion rod 35, the first external expansion rod 35 is hinged with a force application push-pull rod 36, and the force application push-pull rod 36 is not contacted with the hinged arm 33;
the travel rod 21 is provided with a transverse travel guide hole 23, a sliding block 24 capable of transversely sliding along the travel guide hole 23 is arranged on the travel guide hole 23, two sides of the sliding block 24 are fixedly provided with a second outer expanding rod 25, and the other end part of the force application push-pull rod 36 is hinged on the second outer expanding rod 25; a transverse small cylinder 26 is fixedly arranged on the travel rod 21, and an output shaft of the small cylinder 26 is fixed on the sliding block 24 to provide a driving force for transverse movement for the sliding block 24;
the inner side of the crawler belt 32 is regularly provided with a plurality of concave contact grooves 322, a driving wheel 37 is rotatably arranged in the movable base 31, the periphery of the driving wheel 37 is regularly provided with contact protrusions 371 matched with the concave contact grooves 322, and the crawler belt 32 is driven to move based on the rotation of the driving wheel 37; a drive motor 38 for supplying a drive force to the drive wheel 37 is provided outside the moving base 31.
Wherein, a plurality of driving wheels 39 are rotatably arranged inside the moving base 31.
Wherein, the upper end of the extending circular ring 15 is provided with an inner placing groove 71, and the main circuit board 41 is placed in the inner placing groove 71; the upper end of the extension circular ring 15 is detachably provided with an upper end cover plate 72, the upper end cover plate 72 is arranged on the inner placing groove 71 to limit the main circuit board 41, and the upper end cover plate 72 and the extension circular ring 15 are fixed through a first bolt 73; the right end of the upper end cover plate 72 has a middle stopper 721 extending downward;
the right end of the main circuit board 41 is fixedly provided with a transverse extension section 42, and the transverse extension section 42 extends into the longitudinal slot 51; the side of the extending circular ring 15 and the middle stop 721 facing the longitudinal slot 51 are respectively provided with a first limit step 741 and a second limit step 742, and the auxiliary circuit board 61 is abutted against the first limit step 741 and the second limit step 742 after being inserted into the longitudinal slot 51, so that the auxiliary circuit board has a limit function; the side of the secondary circuit board 61 near the middle stop 721 is provided with an inward recess into which the second limit step 742 extends.
Three conductive plugs 43 are regularly arranged on the transverse extension section 42, three conductive plug rods 63 are arranged at the lower end of the secondary circuit board 61, and the three conductive plug rods 63 can be respectively inserted into the corresponding three conductive plugs 43 to realize conductive connection;
the lower end of the left half part of the main circuit board 41 is provided with a positioning concave 44 with a semicircular section shape, and the extending circular ring 15 is fixedly provided with a positioning bulge corresponding to the positioning concave 44.
Wherein, an inner cavity 81 is arranged in the conductive insert block 43, an insertion hole 82 which is communicated with the inner cavity 81 and used for inserting a corresponding conductive insert rod 63 is arranged at the upper end of the conductive insert block 43, conductive arms 83 are arranged at both sides of the inner cavity 81, and the end parts of the conductive arms 83 extend out of the conductive insert block 43 and are welded on the main circuit board 41; a small spring 84 is compressed between the conductive arm 83 and the wall of the inner cavity 81, and the conductive arm 83 is pushed to contact with the conductive plug 63 inserted into the inner cavity 81 by the elastic force of the small spring 84, so as to form a stable conductive connection.
The conductive plug 43 is fixedly provided with a stopper 85 that can abut against the conductive arm 83 to perform a limiting function.
Wherein, the lower end of the conductive plunger 63 is fixedly provided with a contact end 86 having a semicircular cross-section.
An auxiliary top plate 91 is arranged on the right side of the upper end cover plate 72, and the auxiliary top plate 91 and the upper end cover plate 72 are fixed through a second bolt 92; a spacing cavity 93 is formed between the auxiliary top plate 91 and the upper end cover plate 72, the spacing cavity 93 is communicated with the longitudinal slot 51, a limit slide block 94 is slidably arranged in the spacing cavity 93, an inner spring 95 is arranged between the limit slide block 94 and the left side wall of the spacing cavity 93 in a compression mode, the limit slide block 94 is pushed to move towards the longitudinal slot 51 by the inner spring 95, and the limit slide block 94 can be pressed on the upper end face of the auxiliary circuit board 61 which is completely inserted into the longitudinal slot 51 so as to play a role in preventing the auxiliary circuit board 61 from being separated from the longitudinal slot 51;
the end surface of the limit slider 94 facing the side of the longitudinal slot 51 is provided with an inclined guide surface 941, and the sub-circuit board 61 contacts with the inclined guide surface 941 and pushes the limit slider 94 away during the insertion into the longitudinal slot 51;
an auxiliary groove 96 is formed in the auxiliary top plate 91, a longitudinal limit auxiliary block 97 is arranged in the auxiliary groove 96, a contact surface matched with the inclined guide surface 941 is arranged on the lower end surface of the limit auxiliary block 97, an L-shaped abutting block is fixedly arranged at the left end of the limit auxiliary block 97, the L-shaped abutting block comprises a first straight line segment 981 and a second straight line segment 982 which are fixedly arranged, the first straight line segment 981 is transversely arranged, the second straight line segment 982 is longitudinally arranged, a concave limit groove is formed among the first straight line segment 981, the second straight line segment 982 and the limit auxiliary block 97, and a limit jacking block 99 which can extend into the limit groove is fixedly arranged in the auxiliary top plate 91; when the limit jacking block 99 abuts against the limit groove, the contact surface of the limit auxiliary block 97 contacts with the inclined guide surface 941, so that the limit sliding block 94 is prevented from falling out of the spacing cavity 93;
the upper end of the auxiliary groove 96 is communicated with the outside of the auxiliary top plate 91, and the limit auxiliary block 97 can be forced to move downwards, so that the limit slider 94 is separated from the auxiliary circuit board 61, and the auxiliary circuit board 61 can be normally pulled out from the longitudinal slot 51.
The working principle of the embodiment is as follows:
the pipe body is sleeved on the cable, and the small cylinder 26 is controlled to work so as to drive the movable base 31 to move towards the cable and stably stick to the periphery of the cable; then, the driving motor 38 is controlled to work so as to rotate the driving wheel 37 and drive the crawler belt 32 to move, and further drive the whole pipe body to move transversely along the cable. Thus, the partial discharge sensor 62 arranged on the pipe body moves along with the pipe body, the whole pipe body is detected in a regular and omnibearing manner, dozens of partial discharge sensors 62 and related electronic elements are not needed, the cost expenditure is very low, and the resource is saved.
When the secondary circuit board 61 is mounted, the secondary circuit board 61 is inserted from the longitudinal slot 51, and the secondary circuit board 61 contacts the inclined guide surface 941 and pushes the limit slider 94 away in the process of being inserted into the longitudinal slot 51 until the secondary circuit board 61 abuts against the first limit step 741 and the second limit step 742; at this time, the three conductive plugs 63 on the secondary circuit board 61 can be respectively inserted into the corresponding three conductive plugs 43 on the primary circuit board 41 to realize conductive connection, and the partial discharge sensor 62 extends into the through hole 52 to face the wire through hole; meanwhile, the limit slider 94 is stably pressed against the upper end surface of the secondary circuit board 61 under the pushing of the inner spring 95, so as to prevent the secondary circuit board 61 from being separated from the longitudinal slot 51.
When the secondary circuit board 61 is disassembled, the user can press the limit auxiliary block 97 by fingers or a rod body to push the limit sliding block 94 inwards, so that the limit sliding block 94 can be separated from the secondary circuit board 61, and the secondary circuit board 61 can be normally pulled out from the longitudinal slot 51.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (8)
1. A cable protection tube, characterized in that: the cable-driven pipe comprises a pipe body through which a cable passes, wherein the pipe body is hollow, the pipe body consists of a left end disc (11) and a right end disc (12) which are longitudinally arranged, and the left end disc (11) and the right end disc (12) are connected through three groups of connecting pieces which are regularly distributed; each group of connecting pieces consists of two connecting plates (13) which are transversely arranged, two ends of the two connecting plates (13) are respectively fixed on a left end disc (11) and a right end disc (12), the two connecting plates (13) are perpendicular to the left end disc (11) and the right end disc (12), and a plurality of supporting connecting rods (14) are regularly arranged between the two connecting plates (13);
a transverse travel rod (21) is arranged between two adjacent groups of connecting pieces, and the travel rod (21) is consistent with the arrangement direction of the cable; two fixed clamping plates (22) are fixedly arranged on the inner sides of the left end disc (11) and the right end disc (12), a clamping cavity for the end parts of the travel rod (21) to extend in is formed between the two fixed clamping plates (22), and after the two end parts of the travel rod (21) extend into the clamping cavity, the purpose of fixing the travel rod (21) is achieved by screwing in a screw;
a moving assembly capable of being attached to the periphery of the cable and transversely moving along the cable is arranged on each travel rod (21), and the three moving assemblies can drive the whole pipe body to transversely move along the cable;
an extension circular ring (15) is arranged at the left end of the left end disc (11) in an extension mode, and a wire passing hole for a cable to pass through is formed in the extension circular ring (15); the extension ring (15) is internally and fixedly provided with a main circuit board (41), the extension ring (15) is internally provided with a longitudinal slot (51), a secondary circuit board (61) is detachably inserted in the longitudinal slot (51), a local discharge sensor (62) with the model of iHFCT-54 is arranged on the secondary circuit board (61), and the secondary circuit board (61) can form conductive insertion with the main circuit board (41) after being inserted into the longitudinal slot (51);
a through hole (52) is formed in the extending circular ring (15), the through hole (52) is communicated with the wire through hole, and after the secondary circuit board (61) and the main circuit board (41) form conductive insertion, the partial discharge sensor (62) extends into the through hole (52);
the movable assembly comprises a movable base (31), the movable base (31) is attached to the periphery of the cable, a crawler belt (32) for movement is arranged on the movable base (31), and a plurality of damping bulges (321) are regularly arranged on the outer side of the crawler belt (32); two groups of hinge groups are arranged between the movable base (31) and the travel rod (21), each group of hinge groups comprises two hinge arms (33) which are respectively arranged at two sides of the movable base (31), one end of each hinge arm (33) is connected with the movable base (31) through a pin shaft, and the other end of each hinge arm is connected with the travel rod (21) through a pin shaft; a first external expansion rod (35) is fixedly arranged on two sides of the movable base (31), a force application push-pull rod (36) is hinged on the first external expansion rod (35), and the force application push-pull rod (36) is not contacted with the hinged arm (33);
the stroke rod (21) is provided with a transverse stroke guide hole (23), the stroke guide hole (23) is provided with a sliding block (24) capable of transversely sliding along the stroke guide hole (23), two sides of the sliding block (24) are fixedly provided with a second expanding rod (25), and the other end part of the force application push-pull rod (36) is hinged on the second expanding rod (25); a transverse small cylinder (26) is fixedly arranged on the travel rod (21), and an output shaft of the small cylinder (26) is fixed on the sliding block (24) to provide a driving force for transverse movement for the sliding block (24);
the inner side of the crawler belt (32) is regularly provided with a plurality of concave contact grooves (322), the inside of the movable base (31) is rotatably provided with a driving wheel (37), the periphery of the driving wheel (37) is regularly provided with contact protrusions (371) matched with the concave contact grooves (322), and the crawler belt (32) is driven to move based on the rotation of the driving wheel (37); a driving motor (38) for providing driving force for the driving wheel (37) is arranged outside the movable base (31).
2. A cable protection tube according to claim 1, characterized in that: a plurality of driving wheels (39) are rotatably arranged in the movable base (31).
3. A cable protection tube according to claim 1, characterized in that: an inner placing groove (71) is formed in the upper end of the extending circular ring (15), and the main circuit board (41) is placed in the inner placing groove (71); an upper end cover plate (72) is detachably arranged at the upper end of the extending circular ring (15), the upper end cover plate (72) is arranged on the inner placing groove (71) to limit the main circuit board (41), and the upper end cover plate (72) and the extending circular ring (15) are fixed through a first bolt (73); the right end part of the upper end cover plate (72) is provided with a middle stop block (721) extending downwards;
the right end of the main circuit board (41) is fixedly provided with a transverse extension section (42), and the transverse extension section (42) extends into the longitudinal slot (51); the side, facing the longitudinal slot (51), of the extending circular ring (15) and the middle stop block (721) is respectively provided with a first limit step (741) and a second limit step (742), and the auxiliary circuit board (61) can be propped against the first limit step (741) and the second limit step (742) after being inserted into the longitudinal slot (51) to play a limit role; an inward sinking slot into which the second limit step (742) extends is formed in one side, close to the middle stop block (721), of the secondary circuit board (61).
4. A cable protection tube according to claim 3, characterized in that: three conductive inserting blocks (43) are regularly arranged on the transverse extension section (42), three conductive inserting rods (63) are arranged at the lower end of the secondary circuit board (61), and the three conductive inserting rods (63) can be respectively inserted into the corresponding three conductive inserting blocks (43) to realize conductive connection;
the lower end of the left half part of the main circuit board (41) is provided with a positioning concave (44) with a semicircular section, and the extending circular ring (15) is fixedly provided with a positioning bulge corresponding to the positioning concave (44).
5. A cable protection tube according to claim 4, wherein: an inner cavity (81) is formed in the conductive inserting block (43), an inserting hole (82) which is communicated with the inner cavity (81) and used for inserting a corresponding conductive inserting rod (63) is formed in the upper end of the conductive inserting block (43), conductive arms (83) are arranged on two sides of the inner cavity (81), and the end parts of the conductive arms (83) extend out of the conductive inserting block (43) and are welded on the main circuit board (41); a small spring (84) is arranged between the conductive arm (83) and the wall of the inner cavity (81) in a compressed mode, and the conductive arm (83) is pushed to be in contact with the conductive inserted rod (63) inserted into the inner cavity (81) through elastic acting force of the small spring (84) so as to form stable conductive connection.
6. A cable protection tube according to claim 5, wherein: the conductive plug block (43) is internally and fixedly provided with a limiting block (85) which can be abutted against the conductive arm (83) to play a limiting role.
7. A cable protection tube according to claim 5, wherein: the lower end of the conductive inserted rod (63) is fixedly provided with a contact end (86) with a semicircular section shape.
8. A cable protection tube according to claim 3, characterized in that: an auxiliary top plate (91) is arranged on the right side of the upper end cover plate (72), and the auxiliary top plate (91) and the upper end cover plate (72) are fixed through a second bolt (92); a spacing cavity (93) is formed between the auxiliary top plate (91) and the upper end cover plate (72), the spacing cavity (93) is communicated with the longitudinal slot (51), a limit sliding block (94) is slidably arranged in the spacing cavity (93), an inner spring (95) is arranged between the limit sliding block (94) and the left side wall of the spacing cavity (93) in a compressed mode, the limit sliding block (94) is pushed to move towards the longitudinal slot (51) through the inner spring (95), and the limit sliding block (94) can be pressed on the upper end face of the auxiliary circuit board (61) which is completely inserted into the longitudinal slot (51) so as to play a role in preventing the auxiliary circuit board (61) from being separated from the longitudinal slot (51);
the end face of the limit sliding block (94) facing the side of the longitudinal slot (51) is provided with an inclined guide surface (941), and the auxiliary circuit board (61) can contact with the inclined guide surface (941) and push the limit sliding block (94) away in the process of being inserted into the longitudinal slot (51);
an auxiliary groove (96) is formed in the auxiliary top plate (91), a longitudinal limiting auxiliary block (97) is arranged in the auxiliary groove (96), a contact surface matched with the inclined guide surface (941) is arranged on the lower end surface of the limiting auxiliary block (97), an L-shaped abutting block is fixedly arranged at the left end of the limiting auxiliary block (97), the L-shaped abutting block comprises a first straight line section (981) and a second straight line section (982) which are fixedly arranged mutually, the first straight line section (981) is transversely arranged, the second straight line section (982) is longitudinally arranged, a concave limiting groove is formed among the first straight line section (981), the second straight line section (982) and the limiting auxiliary block (97), and a limiting top block (99) which can extend into the limiting groove is fixedly arranged in the auxiliary top plate (91); when the limiting top block (99) is propped against the limiting groove, the contact surface of the limiting auxiliary block (97) is contacted with the inclined guide surface (941), so that the limiting sliding block (94) is prevented from falling out of the spacing cavity (93);
the upper end of the auxiliary groove (96) is communicated with the outside of the auxiliary top plate (91), the limiting auxiliary block (97) can move downwards under the force, and then the limiting sliding block (94) is separated from the auxiliary circuit board (61), so that the auxiliary circuit board (61) can be normally pulled out from the longitudinal slot (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310855264.4A CN116581700B (en) | 2023-07-13 | 2023-07-13 | Cable protection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310855264.4A CN116581700B (en) | 2023-07-13 | 2023-07-13 | Cable protection tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116581700A CN116581700A (en) | 2023-08-11 |
| CN116581700B true CN116581700B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310855264.4A Active CN116581700B (en) | 2023-07-13 | 2023-07-13 | Cable protection tube |
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| Country | Link |
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| CN (1) | CN116581700B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210366218U (en) * | 2019-07-26 | 2020-04-21 | 陕西金迪橡胶制品有限公司 | Tractor with limiting device |
| CN217626811U (en) * | 2022-07-05 | 2022-10-21 | 郑州治世长云科技有限公司 | Holding type cable traction machine |
| KR102469884B1 (en) * | 2021-06-21 | 2022-11-23 | 서울대학교산학협력단 | Gripper with a Tendon Cable |
| CN115864044A (en) * | 2022-12-10 | 2023-03-28 | 杨淑玲 | Wire connector for emergency repair of broken transmission cable and wire connection method |
| CN115993512A (en) * | 2023-03-22 | 2023-04-21 | 国网江西省电力有限公司电力科学研究院 | Cable partial discharge monitoring device |
| CN116208723A (en) * | 2023-01-06 | 2023-06-02 | 无锡学院 | Image processing apparatus |
-
2023
- 2023-07-13 CN CN202310855264.4A patent/CN116581700B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210366218U (en) * | 2019-07-26 | 2020-04-21 | 陕西金迪橡胶制品有限公司 | Tractor with limiting device |
| KR102469884B1 (en) * | 2021-06-21 | 2022-11-23 | 서울대학교산학협력단 | Gripper with a Tendon Cable |
| CN217626811U (en) * | 2022-07-05 | 2022-10-21 | 郑州治世长云科技有限公司 | Holding type cable traction machine |
| CN115864044A (en) * | 2022-12-10 | 2023-03-28 | 杨淑玲 | Wire connector for emergency repair of broken transmission cable and wire connection method |
| CN116208723A (en) * | 2023-01-06 | 2023-06-02 | 无锡学院 | Image processing apparatus |
| CN115993512A (en) * | 2023-03-22 | 2023-04-21 | 国网江西省电力有限公司电力科学研究院 | Cable partial discharge monitoring device |
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| Publication number | Publication date |
|---|---|
| CN116581700A (en) | 2023-08-11 |
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