CN111740369B

CN111740369B - Anti-theft structure in cable maintenance

Info

Publication number: CN111740369B
Application number: CN202010591466.9A
Authority: CN
Inventors: 洪祖勇; 刘新建; 陈锦威
Original assignee: Zhejiang Changjin Construction Co ltd
Current assignee: Zhejiang Changjin Construction Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-06-29
Anticipated expiration: 2040-06-24
Also published as: CN111740369A

Abstract

The application relates to an anti-theft structure in cable maintenance, which comprises an inspection well, a well cover, standby cable pipes and a working cable pipe, wherein the standby cable pipes are respectively arranged on two opposite side walls of the inspection well, the working cable pipe is arranged in the inspection well, a mounting plate is arranged in the inspection well and positioned between openings of the two standby cable pipes, a through hole for a cable to penetrate through to the working cable pipe is formed in the middle of the mounting plate, two vertical plates are fixed on the upper side of the mounting plate and are respectively arranged on two sides of the through hole, and each vertical plate is connected with a restraint frame for restraining the cable; the restraining frames are distributed in a W shape, the connecting points are respectively connected in a rotating way, and the two ends of each restraining frame are connected with the vertical plate in a sliding way and are positioned through the limiting pieces; the upside of mounting panel articulates there is the flip that the free end passes through the multiunit fastener with the mounting panel and links to each other, and flip's width equals the interval of two reserve cable pipes and can be used to shelter from restraint frame and riser. This application has the effect that can effectively retrain and reserve the cable in the protection inspection shaft.

Description

Anti-theft structure in cable maintenance

Technical Field

The application relates to the technical field of cable construction engineering, in particular to an anti-theft structure in cable maintenance.

Background

With the vigorous promotion of urbanization construction in China, more and more urban roads are provided in China, people can go out more and more conveniently, street lamps on two sides of the roads need to be powered by power supply lines, and cables of the power supply lines are arranged in cable tubes in a penetrating mode and buried underground. When the construction cable pipe, two cable pipes of simultaneous construction are under construction to usual way, and two cable pipes set up at the parallel interval of same horizontal plane, and a cable pipe wears to establish the power supply line etc. of street lamp as the work pipe in, and for convenience later stage construction and maintenance, can reserve one section length with the cable in order to make reserve in the inspection shaft usually.

In the related art, chinese patent publication No. CN107268683A discloses a street lamp cable anti-theft structure, a construction method thereof, and a stolen maintenance method, including a plurality of lamp posts arranged at intervals along a road direction, a plurality of inspection wells, a working cable pipe and a spare cable pipe arranged between adjacent inspection wells, and a surrounding concrete layer maintained outside the working cable pipe and the spare cable pipe, wherein an anti-theft concrete layer is poured on a bottom plate of the inspection well between openings of two spare cable pipes, and the anti-theft concrete layer is lower than the opening of the spare cable pipe in the inspection well. Even if a lawbreaker pries the well cover of the inspection well and enters the inspection well, only a small part of cables above the anti-theft concrete can be stolen, so that the cable main body in the cable pipe is protected.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the cable is connected, a part of the cable still remains in the inspection well without protective measures, and after a lawbreaker pries the well cover of the inspection well and enters the inspection well, the cable reserved in the inspection well can still be stolen by the lawbreaker and causes economic loss, so that improvement is needed.

Disclosure of Invention

In order to restrain and protect the reserved cable in the inspection well, the application provides an anti-theft structure in cable maintenance.

The application provides an anti-theft structure adopts following technical scheme in the cable maintenance:

an anti-theft structure in cable maintenance comprises an inspection well, a well cover, spare cable pipes and a working cable pipe, wherein the spare cable pipes are respectively arranged on two opposite side walls of the inspection well, the working cable pipe is arranged in the inspection well and used for a cable connected with a street lamp to pass through, a mounting plate is arranged in the inspection well and positioned between openings of the two spare cable pipes, a through hole for the cable to penetrate through to the working cable pipe is formed in the middle of the mounting plate, two vertical plates are fixed on the upper side of the mounting plate and are respectively arranged on two sides of the through hole, and a restraint frame used for restraining the cable is connected to each vertical plate; the restraint frames are distributed in a W shape, the connection points are respectively connected in a rotating mode, and two ends of each restraint frame are connected with the vertical plate in a sliding mode and are positioned through the limiting pieces; the upside of mounting panel articulates there is the flip that the free end passes through the multiunit fastener with the mounting panel and links to each other, flip's width equals the interval of two reserve cable pipes and can be used to shelter from restraint frame and riser.

Through adopting above-mentioned technical scheme, reserve the cable in the inspection shaft and have the effect of making things convenient for later stage construction and maintenance, during the installation cable, move the two free ends of restraint frame dorsad earlier, rethread locating part makes and opens the locking to the biggest restraint frame this moment, then will reserve the cable and walk around in proper order and wear to the service cable pipe from the through-hole after each member in the restraint frame, rotate flip at last in order to shelter from restraint frame and riser, reuse fastener locking flip. Because the reserved cable is protected by the turning cover and restrained by the restraining frame, a lawbreaker cannot open the turning cover to steal the cable after prying the well cover and entering the inspection well, so that economic loss or power failure of a street lamp cannot be caused; and even if a lawbreaker opens the flip cover, the cable is still required to be separated from the restraint frame, and the operation is complicated. When the cable is overhauled, a worker can open the turnover cover firstly and then move the two free ends of the constraint frame towards each other to furl the constraint frame, so that the tensioned cable is loosened to facilitate overhauling operation.

Preferably, the vertical plate is connected with a first fixed shaft, two movable shafts which are respectively arranged at two sides of the first fixed shaft and are in sliding connection with the vertical plate, and two second fixed shafts which are respectively arranged at two sides of the first fixed shaft and are fixedly connected with the vertical plate, the two second fixed shafts are respectively positioned between the first fixed shaft and the two movable shafts and are lower than the first fixed shaft, and the vertical plate is provided with two waist-shaped holes which are respectively in sliding connection with the movable shafts; the restraint frame includes two both ends respectively with the loose axle and the second fixed axle rotate the dwang of being connected and two both ends respectively with first fixed axle and second fixed axle rotate the dead lever of being connected, the cable that wears out from standby cable pipe walks around one of them dwang, two dead levers and another dwang in proper order and extends to the through-hole.

Through adopting above-mentioned technical scheme, during the restraint cable, revolute the dead lever pulling behind the dwang round with the cable earlier, again in proper order around two dead levers and another dwang round. After the cable is installed in place, the cable is wound on the rotating rod and the fixed rod and tensioned under the action of the rotating rod and the fixed rod, and lawbreakers cannot easily pull the cable to damage the cable after entering the inspection well. When the movable shaft slides along the waist-shaped hole, the rotating rod can rotate around the second fixed shaft which is rotationally connected with the rotating rod, so that the restraint frame is partially unfolded or folded, the cable is tensioned or loosened, and the installation and maintenance efficiency is high. In addition, if the staff carelessly and vigorously pulls the cable to cause the fixed rod and the rotating rod to rotate relative to the vertical plate during operation, the end parts of the fixed rod and the rotating rod are in rotating connection with the first fixed shaft, the movable shaft or the second fixed shaft as axes, and the fixed rod and the rotating rod can disperse partial stress to the first fixed shaft, the movable shaft and the second fixed shaft after being subjected to the tensile force action of the cable, so that the restraint frame is not easily broken at once and has long service life.

Preferably, a first movable ring groove is formed in the circumferential side wall of the movable shaft, and a movable lantern ring located in the waist-shaped hole is sleeved in the first movable ring groove.

Through adopting above-mentioned technical scheme, when the loose axle removed along waist shape hole, the loose collar can rotate relative to the loose axle to turning into rolling friction with the sliding friction of loose axle and waist shape hole lateral wall, not only improved the smooth and easy degree that the loose axle removed and the rotation efficiency of dwang, still reduced the surface wear of loose axle, prolonged the life of loose axle.

Preferably, a plurality of caulking grooves with the width larger than the diameter of the cable are distributed on the rotating rod and the fixed rod along the length direction of the rotating rod and the fixed rod; two partition plates which are respectively arranged at two sides of the through hole are fixed above the mounting plate, and a plurality of partition holes for the cables to pass through are distributed on the partition plates along the vertical direction.

Through adopting above-mentioned technical scheme, the caulking groove can be used to distinguish the cable of different grade type, avoids the cable of different grade type to mix and reduces maintenance efficiency. Each division hole on the division board can supply the cable of different grade type to wear out in order to extend to the through-hole respectively, plays the effect of further distinguishing the cable, makes things convenient for the staff to fix a position the cable fast in order to improve maintenance efficiency.

Preferably, the loose axle is fixed with the extension spring that orders about the dwang to keeping away from dead lever one side pivoted, the other end of extension spring is connected on its close division board or reserve cable pipe.

Through adopting above-mentioned technical scheme, can order about the dwang during extension spring natural state and rotate to the one side of keeping away from the dead lever to make the restraint frame keep open state, help the tensioning of cable.

Preferably, the locating part includes that the cover establishes the stop collar of keeping away from dwang one end at the loose axle, fixes the spacing hook in the stop collar both sides and divide and establish waist shape hole both sides and with riser fixed connection's stop block, be provided with on the stop block with spacing hook complex locking hole.

Through adopting above-mentioned technical scheme, when the restraint frame opened and the cable tensioning, spacing hook hooked in the locking hole of keeping away from dead lever one side, stop collar and loose axle were difficult to remove to the one side that is close to the dead lever this moment, the dwang was difficult to rotate to the one side that is close to the dead lever, and the restraint frame keeps opening the state. When the restraint frame is partially folded and the cable is loosened, the limiting hook is hooked in the locking hole close to one side of the fixed rod, the limiting sleeve and the movable shaft are not easy to move towards one side far away from the fixed rod, the rotating rod is not easy to rotate towards one side far away from the fixed rod, and the restraint frame is kept in a partially folded state and is convenient to overhaul and operate. And the restraint frame is matched and connected with the stop hole through the limit hook, and when the restraint frame is positioned, only the limit sleeve is moved by hand to enable the limit hook to be clamped into the stop hole, so that the operation is simple and convenient.

Preferably, one side of the limiting sleeve, which is close to the vertical plate, is rotatably connected with a plurality of rolling balls; and the movable shaft is fixedly provided with a butting ring which is attached to one side of the limiting sleeve, which is far away from the vertical plate.

Through adopting above-mentioned technical scheme, when the stop collar removed along with the relative riser of loose axle, the spin can roll in order to reduce the frictional force of stop collar with the riser relatively the riser, and smooth and easy degree when further having improved the loose axle and removed. The abutting ring can limit the stop collar to move to one side far away from the vertical plate, and the stop collar is prevented from being separated from the movable shaft.

Preferably, the fastener comprises a fastening shaft, a moving block rotatably connected to the bottom end of the fastening shaft, an anti-falling block fixed on the side wall of the fastening shaft and a stop block fixed at the top end of the fastening shaft, and the length of the stop block is greater than that of the anti-falling block and the moving block; the end surface of the flip cover, which is far away from the mounting plate, is provided with abdication grooves with the number equal to that of the fasteners, and the inner wall of the abdication groove, which is close to the mounting plate, is provided with through holes for the anti-drop blocks and the moving blocks to penetrate out; the mounting plate is provided with fastening grooves which are equal in number to the through holes and respectively correspond to the through holes, and when the flip cover rotates to be attached to the mounting plate, the through holes are respectively aligned with the fastening grooves; the side wall of the fastening groove is provided with an arc-shaped groove for the stop block to rotate, and the distance between the bottom wall of the arc-shaped groove and the bottom wall of the fastening groove is equal to the thickness of the moving block.

Through adopting above-mentioned technical scheme, after the cable mounting target in place, rotate flip to the one side that is close to the mounting panel, align respectively until through-hole and fastening groove, make anticreep piece and movable block align again, and penetrate through-hole and fastening groove with the fastener in proper order, until the bottom wall butt of movable block and fastening groove, dog and the groove of stepping down the bottom wall butt. Then rotate the fastening axle, the movable block receives blockking of fastening groove lateral wall can not rotate along with the fastening axle, and the anticreep piece rotates to the arc wall along with the fastening axle in, and the anticreep piece receives blockking of lateral wall on the arc wall unable the shifting up this moment to restriction flip rotates in order to realize flip's locking to the one side of keeping away from the mounting panel. Not only convenient operation when flip fixes a position, and when extracting the fastener in order to realize flip's unblock, still need rotate the fastening shaft so that the anticreep piece moves into the fastening groove, lawless persons because not having the unblock fixed knot construct difficult take out the fastener, thereby difficult open flip, the security of reserve cable is high.

Preferably, the arc wall is kept away from on the inner wall in fastening groove integrated into one piece has the fixture block, the terminal surface that the anticreep piece is close to the fixture block is equipped with the draw-in groove with fixture block joint complex.

Through adopting above-mentioned technical scheme, when locking flip, rotate the fastening axle so that the anticreep piece rotates to one side that is close to the fixture block along the arc wall for fixture block and draw-in groove joint cooperation, thereby make the anticreep piece be difficult for with the arc wall separation, flip and mounting panel's joint strength height.

Preferably, the thickness of dog is less than the degree of depth in the groove of stepping down, it equals spout and constant head tank to be equipped with the width on two cell walls that the groove of stepping down is relative respectively, the spout is kept away from and is fixed with reset spring on the inner wall of constant head tank, reset spring's the other end is fixed with and is used for sealing the groove open-ended slider of stepping down.

Through adopting above-mentioned technical scheme, flip and mounting panel are connected the back that targets in place, and the slider can move to the constant head tank under reset spring's effect to seal the opening in the groove of stepping down in order to avoid the fastener to expose, further improved the security of flip locking and the protective effect of reserve cable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the reserved cable penetrating out of the standby cable tube bypasses the restraint frame and then enters the working cable tube through the separation hole and the through hole, and the free end of the flip is connected with the mounting plate through the fastener and can shield the restraint frame and the reserved cable, so that a lawless person entering the inspection well is not easy to open the flip to steal the reserved cable, and economic loss caused by stealing the cable is avoided;

2. the restraint frame is W-shaped and comprises a fixed rod and a rotating rod, one end of the rotating rod is connected with the vertical plate in a sliding mode, and when the cable is overhauled, a worker can rotate the rotating rod to one side close to the fixed rod, so that the cable is loosened to facilitate overhauling operation; the limiting hook is matched with the stop hole to play a role in positioning the limiting sleeve and the movable shaft, so that the rotating rod is limited to continue rotating, the state of the restraint frame is kept constant, and the stability of the cable is high;

3. when locking flip, the fastener penetrates the fastening groove from the through-hole after, rotates the fastening axle so that the anticreep piece changes over to the arc wall and makes fixture block and draw-in groove joint, and the anticreep piece receives the restriction of lateral wall on the arc wall and can not remove to the one side of keeping away from the mounting panel, flip's free end can not separate with the mounting panel, and lawless persons is difficult for opening flip, protecting effect after getting into the inspection shaft.

Drawings

FIG. 1 is a schematic structural diagram of a well lid, an upper well body and a lower well body which are separated in the embodiment of the application;

FIG. 2 is an explosion schematic diagram after the well lid and the well body are removed in the embodiment of the application;

FIG. 3 is an exploded view highlighting the first ring groove of the embodiment of the present application;

fig. 4 is a schematic structural diagram of a limiting element and a movable shaft according to an embodiment of the present disclosure;

FIG. 5 is a schematic partial sectional view highlighting a chute of an embodiment of the present application;

FIG. 6 is a schematic view of the structure of the fastener, slider and return spring in an embodiment of the present application;

fig. 7 is a partially schematic sectional view highlighting a card slot in an embodiment of the present application.

Description of reference numerals: 1. an inspection well; 11. going up to the well body; 12. descending the well body; 13. an output port; 14. mounting a platform; 2. a well cover; 3. a spare cable pipe; 4. a working cable pipe; 5. mounting a plate; 51. a through hole; 52. a vertical plate; 521. a waist-shaped hole; 53. a first fixed shaft; 531. a third fixed ring groove; 532. a fourth fixed ring groove; 54. a movable shaft; 541. a first movable ring groove; 542. a movable collar; 543. a second movable ring groove; 544. a butting ring; 545. a tension spring; 55. a second fixed shaft; 551. a first fixed ring groove; 552. a second fixed ring groove; 56. a restraint frame; 561. rotating the rod; 562. fixing the rod; 563. a connecting ring; 57. caulking grooves; 58. a partition plate; 581. a separation hole; 59. a fastening groove; 591. an arc-shaped slot; 592. a clamping block; 6. a limiting member; 61. a limiting sleeve; 611. rolling a ball; 62. a limiting hook; 63. a stopper block; 631. a stop hole; 7. a cover is turned; 71. a yielding groove; 72. a through hole; 73. a chute; 74. positioning a groove; 75. a return spring; 76. a slider; 761. pulling the block; 762. a locking block; 77. locking the groove; 8. a fastener; 81. fastening the shaft; 811. a hexagonal groove; 82. a moving block; 821. a correction block; 83. an anti-drop block; 831. a correction groove; 832. a card slot; 84. and a stop block.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses an anti-theft structure in cable maintenance. Referring to fig. 1 and 2, the anti-theft structure in cable maintenance of the present application includes an inspection well 1, a well lid 2, a spare cable pipe 3 respectively disposed on two opposite side walls of the inspection well 1, and a working cable pipe 4 disposed on the other side wall of the inspection well 1, wherein the well lid 2 is disposed above the inspection well 1 for closing an opening of the inspection well 1. The openings of the two standby cable tubes 3 are oppositely arranged and can be used for reserved cables to penetrate out, and the working cable tube 4 is positioned below the standby cable tube 3 and can be used for a cable connected with a street lamp to penetrate through.

Referring to fig. 1 and 2, the inspection well 1 comprises an upper well body 11 and a lower well body 12, output ports 13 matched with the standby cable tubes 3 and the working cable tubes 4 are formed in the three side walls of the inspection well 1 at the joint parts of the upper well body 11 and the lower well body 12 in a pouring mode, and the working cable tubes 4 and the two standby cable tubes 3 are fixedly arranged in the three output ports 13 respectively.

Referring to fig. 2 and 3, a mounting plate 5 is disposed in the inspection well 1 between openings of two spare cable pipes 3, a mounting platform 14 is formed in an inner cavity of the lower well body 12 by concrete pouring, and the mounting plate 5 is embedded in the mounting platform 14. The middle part of the mounting plate 5 is provided with a through hole 51 communicated with the working cable tube 4, and a cable penetrating out of the standby cable tube 3 extends into the working cable tube 4 from the through hole 51. Two vertical plates 52 respectively arranged at two sides of the through hole 51 are fixed at the upper side of the mounting plate 5, and the length direction of the vertical plates 52 is parallel to the length direction of the standby cable tube 3; each vertical plate 52 is connected with a group of restraint frames 56, the restraint frames 56 are distributed in a W shape, and the connection points are respectively connected in a rotating mode.

Referring to fig. 2 and 3, a first fixed shaft 53, two movable shafts 54 respectively disposed at two sides of the first fixed shaft 53, and two second fixed shafts 55 respectively disposed at two sides of the first fixed shaft 53 are connected to one side of the vertical plate 52 close to the through hole 51, wherein the first fixed shaft 53 and the second fixed shaft 55 are both fixedly connected to the vertical plate 52, the two second fixed shafts 55 are respectively disposed between the first fixed shaft 53 and the two movable shafts 54, and the height of the second fixed shaft 55 is lower than that of the first fixed shaft 53. Each vertical plate 52 is provided with two waist-shaped holes 521 which are respectively connected with the movable shaft 54 in a sliding manner, the circumferential side wall of the movable shaft 54 is provided with a first movable ring groove 541, and a movable lantern ring 542 positioned in the waist-shaped hole 521 is sleeved in the first movable ring groove 541. When the movable shaft 54 moves along the waist-shaped hole 521, the movable sleeve 542 can rotate relative to the waist-shaped hole 521, so that the friction force between the movable shaft 54 and the side wall of the waist-shaped hole 521 is reduced, the friction loss between the movable shaft 54 and the side wall of the waist-shaped hole 521 is small, and the movable shaft 54 can move smoothly.

Referring to fig. 2 and 3, the restriction frame 56 includes two rotation rods 561 and two fixing rods 562 between the two rotation rods 561, and a connection ring 563 is fixed to each of the rotation rods 561 and the fixing rods 562 at two ends. The side of the circumferential side wall of the movable shaft 54 close to the restraint frame 56 is provided with a second movable ring groove 543, the circumferential side wall of the second fixed shaft 55 is sequentially provided with a first fixed ring groove 551 and a second fixed ring groove 552, and the second fixed ring groove 552 is located on the side of the first fixed ring groove 551 far away from the vertical plate 52. The connecting rings 563 at the two ends of the rotating rod 561 are respectively sleeved in the second movable ring groove 543 and the second fixed ring groove 552 close thereto. The circumferential side wall of the first fixing shaft 53 is sequentially provided with a third fixing ring groove 531 and a fourth fixing ring groove 532, and the fourth fixing ring groove 532 is positioned on one side of the third fixing ring groove 531 away from the vertical plate 52. The connecting rings 563 at two ends of one fixing rod 562 are respectively sleeved in the first fixing ring groove 551 and the third fixing ring groove 531, and the fixing rings at two ends of the other fixing rod 562 are respectively sleeved in the second fixing ring groove 552 and the fourth fixing ring groove 532. The cables passing out of the standby cable tube 3 sequentially pass through one of the rotating rods 561, the two fixing rods 562 and the other rotating rod 561 and then extend to the through hole 51, and the restraint frame 56 can be used for winding the cables to reduce the risk of theft. In addition, the movable shaft 54 connected to one end of the rotating rod 561 is slidably connected to the vertical plate 52, and when the movable shaft 54 moves along the slotted hole 521, the rotating rod 561 can rotate around the second fixed shaft 55, so that the constraining frame 56 is opened or partially closed, and the cable is tightened or loosened.

Referring to fig. 2 and 3, a plurality of caulking grooves 57 with widths larger than the diameter of the cable are distributed on the rotating rod 561 and the fixing rod 562 along the length direction of the rotating rod, and the caulking grooves 57 can be used for positioning cables of different types, so that workers can distinguish the cables to improve the overhaul efficiency. Two partition plates 58 are further fixed above the mounting plate 5, the two partition plates 58 are respectively located on two sides of the through hole 51 and are distributed with a plurality of partition holes 581 along the vertical direction, and the partition holes 581 can be used for cables to penetrate out so as to further distinguish the cables penetrating into the through hole 51.

Referring to fig. 3 and 4, two sets of limiting members 6 are connected to one side of each vertical plate 52 away from the restraint frame 56, and the two sets of limiting members 6 can be respectively used for positioning two movable shafts 54, so that two ends of the restraint frame 56 are fixed. The limiting member 6 includes a limiting sleeve 61 sleeved on one end of the movable shaft 54 far away from the rotating rod 561, limiting hooks 62 respectively fixed on two opposite sides of the limiting sleeve 61, and two stopping blocks 63 respectively located on two sides of the waist-shaped hole 521, wherein the stopping blocks 63 are fixedly connected with the vertical plate 52 and are provided with stopping holes 631 matched with the limiting hooks 62. When the movable shaft 54 moves to be attached to the inner wall of the kidney-shaped hole 521 close to the fixed rod 562, the limit hook 62 close to the fixed rod 562 is hooked in the stop hole 631 close to the fixed rod 562, and at this time, the restraint frame 56 is in a partially folded state, and the cable is loosened so as to facilitate maintenance operation. When the movable shaft 54 moves to be attached to the inner wall of the waist-shaped hole 521 far away from the fixed rod 562, the limit hook 62 far away from the fixed rod 562 is hooked in the stop hole 631 far away from the fixed rod 562, and at the moment, the restraint frame 56 is opened, the cable is tensioned and the cable is not easy to be stolen.

Referring to fig. 3 and 4, a plurality of rolling balls 611 are rotatably connected to one side of the limiting sleeve 61 close to the vertical plate 52, and the rolling balls 611 roll when the limiting sleeve 61 moves relative to the vertical plate 52, so that the friction force between the limiting sleeve 61 and the vertical plate 52 is reduced, and the smoothness of the movable shaft 54 during moving and the rotating efficiency of the rotating rod 561 are improved. An abutting ring 544 attached to the stopper 61 on the side away from the vertical plate 52 is fixed to the movable shaft 54 to restrict the stopper 61 from coming off the movable shaft 54.

Referring to fig. 2 and 3, a tension spring 545 is fixed to a side wall of the movable shaft 54, and the other end of the tension spring 545 is fixed to the partition plate 58 or the spare cable tube 3 adjacent thereto. The tension spring 545 naturally has a pulling force that drives the rotating rod 561 to rotate to a side away from the fixing rod 562, so that the restricting frame 56 tends to be tensioned when the limiting hook 62 is released from the stopping hole 631.

Referring to fig. 2 and 5, the upper side of the mounting plate 5 is hinged with a flip cover 7, the width of the flip cover 7 is equal to the distance between the two standby cable tubes 3, and the free end of the flip cover 7 is connected with the mounting plate 5 through a plurality of groups of fasteners 8; when the free end of the flip 7 is attached to the mounting plate 5, the flip 7 is located outside the restraint bracket 56 and riser 52 and the reserve cable for protecting the reserve cable from theft.

Referring to fig. 5 and 6, the fastening member 8 includes a fastening shaft 81, a moving block 82 rotatably connected to the bottom end of the fastening shaft 81, a retaining block 83 fixed on the side wall of the fastening shaft 81, and a stopper 84 fixed on the top end of the side wall of the fastening shaft 81, wherein the retaining block 83 is located between the moving block 82 and the stopper 84, the length of the stopper 84 is greater than the length of the retaining block 83 and the moving block 82, and the length and width of the retaining block 83 are not greater than the length and width of the moving block 82; the upper end surface of the fastening shaft 81 is provided with a hexagonal groove 811 for a hexagonal screwdriver to extend into to drive the fastening shaft 81 to rotate. An elastic correcting block 821 is fixed on the upper side wall of the moving block 82, a correcting groove 831 in clamping fit with the correcting block 821 is arranged on the lower end face of the anti-falling block 83, and when the correcting block 821 is in clamping fit with the correcting groove 831, the side edges of the moving block 82 and the anti-falling block 83 are aligned.

Referring to fig. 5 and 6, the end surface of the flip cover 7 away from the mounting plate 5 is provided with the same number of the yielding grooves 71 as the number of the fasteners 8, the width of the yielding groove 71 is greater than the length of the stopper 84, and the depth of the yielding groove 71 is greater than the thickness of the stopper 84; the inner wall of the receding groove 71 close to the mounting plate 5 is provided with through holes 72, the upper end surface of the mounting plate 5 is provided with fastening grooves 59 which are equal in number and cross-sectional shape to the through holes 72, and the through holes 72 and the fastening grooves 59 can be penetrated by the anti-falling blocks 83 and the moving blocks 82 when aligned. When the lid 7 is rotated to be engaged with the mounting groove, the through holes 72 are aligned with the fastening grooves 59, respectively. The side wall of the fastening groove 59 is provided with an arc groove 591 for the stop 84 to rotate, and the distance between the bottom wall of the arc groove 591 and the bottom wall of the fastening groove 59 is equal to the thickness of the moving block 82. After the through hole 72 and the fastening groove 59 are aligned, the anti-falling block 83 and the fastener 8 aligned with the moving block 82 sequentially penetrate into the receding groove 71, the through hole 72 and the fastening groove 59 until the moving block 82 abuts against the bottom wall of the fastening groove 59, meanwhile, the stop block 84 abuts against the bottom wall of the receding groove 71, then the fastening shaft 81 is rotated to drive the anti-falling block 83 to move into the arc groove 591, at the moment, the fastener 8 is blocked by the upper side wall of the arc groove 591 and cannot move upwards, therefore, the flip cover 7 is locked, and the flip cover 7 is not easy to open by lawbreakers.

Referring to fig. 5 and 7, a blocking block 592 is integrally formed on an inner wall of the arc-shaped groove 591 away from the fastening groove 59, and a blocking groove 832 engaged with the blocking block 592 is formed on an end surface of the anti-falling block 83 close to the blocking block 592. The engagement block 592 and the engagement groove 832 cooperate to further position the anti-separation block 83, thereby improving the locking effect of the flip cover 7.

Referring to fig. 5 and 6, the two opposite groove walls of the abdicating groove 71 are respectively provided with a sliding groove 73 and a positioning groove 74, the openings of the sliding groove 73 and the positioning groove 74 are opposite and have a width equal to the width of the abdicating groove 71, a return spring 75 is fixed on the inner wall of the sliding groove 73 away from the positioning groove 74, the other end of the return spring 75 is fixed with a sliding block 76, and one end of the sliding block 76 can be driven to extend into the positioning groove 74 when the return spring 75 is in a natural state, so that the sliding block 76 seals the opening of the abdicating groove 71 to prevent the block 84 from being.

Referring to fig. 5 and 6, a pull block 761 is fixed on an end surface of the slider 76 away from the stopper 84, the pull block 761 is located at an end of the slider 76 away from the return spring 75, and a worker can drive the slider 76 to move through the pull block 761 to open and close the opening of the abdicating groove 71. The end face of the pull block 761 close to the slide groove 73 is integrally formed with a lock block 762, the inner wall of the abdicating groove 71 provided with the slide groove 73 is provided with a lock groove 77 in clamping fit with the lock block 762, and when the lock block 762 is matched with the lock groove 77, the slider 76 can be kept in a state that the opening of the abdicating groove 71 is opened, so that a worker can conveniently take out the fastener 8 to unlock the flip cover 7.

The embodiment of the application provides an implementation principle of an anti-theft structure in cable maintenance: the reserved cable penetrating out of the standby cable tube 3 bypasses the restraint frame 56 and then enters the working cable tube 4 through the separation hole 581 and the through hole 51, the free end of the flip cover 7 is connected with the mounting plate 5 through the fastener 8 and can shield the restraint frame 56 and the reserved cable, so that a lawless person entering the inspection well 1 can not open the flip cover 7 to steal the reserved cable, and economic loss caused by stealing of the cable is avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an anti-theft structure among cable maintenance, includes inspection shaft (1), well lid (2), sets up reserve cable pipe (3) and work cable pipe (4) that are used for the cable that is connected with the street lamp to pass in inspection shaft (1) on two relative lateral walls of inspection shaft (1) respectively, its characterized in that: the inspection well (1) is internally provided with a mounting plate (5) positioned between openings of two spare cable pipes (3), the middle part of the mounting plate (5) is provided with a through hole (51) for a cable to penetrate through to a working cable pipe (4), two vertical plates (52) respectively arranged at two sides of the through hole (51) are fixed at the upper side of the mounting plate (5), and each vertical plate (52) is connected with a restraint frame (56) for restraining the cable; the restraint frames (56) are distributed in a W shape, the connection points are respectively connected in a rotating mode, and two ends of each restraint frame (56) are connected with the vertical plate (52) in a sliding mode and are positioned through the limiting pieces (6); the upper side of the mounting plate (5) is hinged with a turnover cover (7) of which the free end is connected with the mounting plate (5) through a plurality of groups of fasteners (8), and the width of the turnover cover (7) is equal to the distance between two spare cable pipes (3) and can be used for shielding a restraint frame (56) and a vertical plate (52); the vertical plate (52) is connected with a first fixed shaft (53), two movable shafts (54) which are respectively arranged on two sides of the first fixed shaft (53) and are in sliding connection with the vertical plate (52) and two second fixed shafts (55) which are respectively arranged on two sides of the first fixed shaft (53) and are fixedly connected with the vertical plate (52), the two second fixed shafts (55) are respectively positioned between the first fixed shaft (53) and the two movable shafts (54) and are lower than the first fixed shaft (53), and the vertical plate (52) is provided with two waist-shaped holes (521) which are respectively in sliding connection with the movable shafts (54); the restraint frame (56) comprises two rotating rods (561) with two ends respectively rotatably connected with the movable shaft (54) and the second fixing shaft (55) and two fixing rods (562) with two ends respectively rotatably connected with the first fixing shaft (53) and the second fixing shaft (55), and cables penetrating out of the standby cable pipe (3) sequentially bypass one of the rotating rods (561), the two fixing rods (562) and the other rotating rod (561) and then extend towards the through hole (51).

2. The anti-theft structure for cable maintenance according to claim 1, wherein: be equipped with first activity annular (541) on the circumference lateral wall of loose axle (54), the cover is equipped with movable lantern ring (542) that are located waist shape hole (521) in first activity annular (541).

3. The anti-theft structure for cable maintenance according to claim 1, wherein: a plurality of caulking grooves (57) with the width larger than the diameter of the cable are distributed on the rotating rod (561) and the fixed rod (562) along the length direction; two partition plates (58) which are respectively arranged on two sides of the through hole (51) are fixed above the mounting plate (5), and a plurality of partition holes (581) for cables to pass through are distributed on the partition plates (58) along the vertical direction.

4. A cable maintenance antitheft structure according to claim 3, characterized in that: a tension spring (545) for driving the rotating rod (561) to rotate towards one side far away from the fixed rod (562) is fixed on the movable shaft (54), and the other end of the tension spring (545) is connected to a partition plate (58) or a standby cable tube (3) close to the tension spring.

5. The anti-theft structure for cable maintenance according to claim 1, wherein: the limiting part (6) comprises a limiting sleeve (61) sleeved at one end, far away from the rotating rod (561), of the movable shaft (54), limiting hooks (62) fixed to two sides of the limiting sleeve (61) and stop blocks (63) respectively arranged on two sides of the waist-shaped hole (521) and fixedly connected with the vertical plate (52), and stop holes (631) matched with the limiting hooks (62) are formed in the stop blocks (63).

6. The anti-theft structure for cable maintenance according to claim 5, wherein: one side of the limiting sleeve (61) close to the vertical plate (52) is rotatably connected with a plurality of rolling balls (611); and a butting ring (544) attached to one side of the limiting sleeve (61) far away from the vertical plate (52) is fixed on the movable shaft (54).

7. The anti-theft structure for cable maintenance according to claim 1, wherein: the fastening piece (8) comprises a fastening shaft (81), a moving block (82) rotatably connected to the bottom end of the fastening shaft (81), an anti-falling block (83) fixed on the side wall of the fastening shaft (81) and a stop block (84) fixed at the top end of the fastening shaft (81), and the length of the stop block (84) is greater than that of the anti-falling block (83) and the moving block (82); the end face, far away from the mounting plate (5), of the flip cover (7) is provided with the abdicating grooves (71) with the number equal to that of the fasteners (8), and the inner wall, close to the mounting plate (5), of each abdicating groove (71) is provided with through holes (72) through which the anti-falling blocks (83) and the moving blocks (82) can penetrate; the mounting plate (5) is provided with fastening grooves (59) which are equal in number to the through holes (72) and respectively correspond to the through holes, and when the flip cover (7) is rotated to be attached to the mounting plate (5), the through holes (72) are respectively aligned with the fastening grooves (59); an arc-shaped groove (591) for the stop block (84) to rotate is arranged on the side wall of the fastening groove (59), and the distance between the bottom wall of the arc-shaped groove (591) and the bottom wall of the fastening groove (59) is equal to the thickness of the moving block (82).

8. The anti-theft structure for cable maintenance according to claim 7, wherein: a clamping block (592) is integrally formed on the inner wall, away from the fastening groove (59), of the arc-shaped groove (591), and a clamping groove (832) matched with the clamping block (592) in a clamping mode is formed in the end face, close to the clamping block (592), of the anti-falling block (83).

9. The anti-theft structure for cable maintenance according to claim 7, wherein: the thickness of dog (84) is less than the degree of depth of groove of stepping down (71), it equals spout (73) and constant head tank (74) to be equipped with the width on two cell walls that groove of stepping down (71) is relative respectively, be fixed with reset spring (75) on the inner wall of constant head tank (74) is kept away from in spout (73), the other end of reset spring (75) is fixed with and is used for sealing groove of stepping down (71) open-ended slider (76).