CN110656661B - Anti-theft cover plate - Google Patents

Anti-theft cover plate Download PDF

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Publication number
CN110656661B
CN110656661B CN201910965096.8A CN201910965096A CN110656661B CN 110656661 B CN110656661 B CN 110656661B CN 201910965096 A CN201910965096 A CN 201910965096A CN 110656661 B CN110656661 B CN 110656661B
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CN
China
Prior art keywords
cover plate
frame
lock
assembly
theft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910965096.8A
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Chinese (zh)
Other versions
CN110656661A (en
Inventor
刘文东
张凤银
吴俊雄
黎玉强
薛清
胡强
许朋
吴寅郎
王晨阳
宋晓光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Power Supply Bureau Co Ltd
Original Assignee
Shenzhen Power Supply Bureau Co Ltd
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Publication date
Application filed by Shenzhen Power Supply Bureau Co Ltd filed Critical Shenzhen Power Supply Bureau Co Ltd
Priority to CN201910965096.8A priority Critical patent/CN110656661B/en
Publication of CN110656661A publication Critical patent/CN110656661A/en
Application granted granted Critical
Publication of CN110656661B publication Critical patent/CN110656661B/en
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1454—Non-circular covers, e.g. hexagonal, elliptic
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1445—Tools for positioning or removing cover frames
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/20—Skeleton keys; Devices for picking locks; Other devices for similar purposes ; Means to open locks not otherwise provided for, e.g. lock pullers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/008—Locks for use with special keys or a plurality of keys ; keys therefor for simple tool-like keys
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
    • E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings

Abstract

The invention discloses an anti-theft cover plate, which comprises: the cover plate assembly and a limit frame for limiting and fixing the cover plate assembly; the cover plate combination comprises a middle cover plate component provided with an anti-theft lock, a first transmission cover plate component and a second transmission cover plate component which are respectively arranged on two opposite sides of the middle cover plate component and are in limit fit with the middle cover plate, and a first outer cover plate component and a second outer cover plate component which are respectively arranged on the other side of the first transmission cover plate component and the other side of the second transmission cover plate component and are in limit fit with the first transmission cover plate component and the second transmission cover plate component; the anti-theft lock is matched and locked with the limiting frame; the first outer side cover plate component and the second outer side cover plate component are matched with the limiting frame in an inserted mode. The anti-theft cover plate is simple in structure, few in number of locks, simple and rapid to open, labor and time are saved, and cable maintenance efficiency is improved.

Description

Anti-theft cover plate
Technical Field
The invention relates to the technical field of electric power, in particular to an anti-theft cover plate.
Background
In recent years, as the pace of urban development is increasing, land resources are becoming more and more scarce, and power cables are widely used due to the advantages of safety, reliability, land saving and the like. The power cable becomes an important component of a modern urban power grid, and provides important guarantee for the safe operation of the power grid. According to the requirements of the operation regulations of the existing cable lines, maintenance work wells, namely grounding box work wells, are required to be arranged on two sides of a cable middle joint well, and the size of the maintenance work wells is generally 1500mm multiplied by 1000 mm. The power cable inspection well is an important channel for cable detection and inspection, and locks can be installed on a cover plate by part of cable operation units so as to prevent equipment such as coaxial cables, grounding wires and grounding boxes in the high-voltage cable inspection well from being stolen and artificially damaged and ensure the safe operation of cable lines. At present, for guaranteeing apron intensity, the manhole cover plate material matter is reinforced concrete, and the pickproof lock form is "ten locks of five boards", and one set of manhole cover plate that overhauls promptly contains five apron, and the pickproof lock has all been installed at each apron both ends, and the leading problem that faces is that the tool to lock is many and the structure is complicated, wastes time and energy when opening, and is inefficient, has seriously influenced the maintenance work of cable.
Disclosure of Invention
Based on the structure, the invention provides the anti-theft cover plate, which overcomes the defects that the anti-theft cover plate in the prior art is complex in structure, time-consuming and labor-consuming in opening, low in efficiency and seriously influences the maintenance work of cables.
The technical scheme is as follows:
an anti-theft cover plate comprising: the cover plate assembly and a limit frame for limiting and fixing the cover plate assembly; the cover plate combination comprises a middle cover plate component provided with an anti-theft lock, a first transmission cover plate component and a second transmission cover plate component which are respectively arranged on two opposite sides of the middle cover plate component and are in limit fit with the middle cover plate, and a first outer cover plate component and a second outer cover plate component which are respectively arranged on the other side of the first transmission cover plate component and the other side of the second transmission cover plate component and are in limit fit with the first transmission cover plate component and the second transmission cover plate component; the anti-theft lock is matched and locked with the limiting frame; the first outer side cover plate component and the second outer side cover plate component are matched with the limiting frame in an inserted mode.
The anti-theft cover plate of the technical scheme is simple in structure, the number of the locks is small, the opening is simple and rapid, manpower and time are saved, and the cable maintenance efficiency is improved. Specifically, when the anti-theft cover plate of the technical scheme is used, the limit frame matched with the wellhead of the maintenance worker is installed at the wellhead of the maintenance worker, then the first outer side cover plate component and the second outer side cover plate component are respectively installed on the two opposite side walls of the limit frame in an inserting mode, then the first transmission cover plate component and the second transmission cover plate component are respectively connected with the first outer side cover plate component and the second outer side cover plate component in a limiting matching mode, finally the middle cover plate component is connected with the first transmission cover plate component and the second transmission cover plate component in a limiting matching mode, and the anti-theft lock is started, so that the anti-theft lock is tightly matched with the limit frame in a locking mode. When the anti-theft cover plate of the technical scheme needs to be opened, the anti-theft lock must be unlocked, then the middle cover plate assembly is taken out, the first transmission cover plate assembly and the second transmission cover plate assembly which are in limit fit with the middle cover plate assembly can be taken out, and finally the first outer side cover plate assembly and the second outer side cover plate assembly which are in limit fit with the first transmission cover plate assembly and the second transmission cover plate assembly are taken out. Therefore, the anti-theft cover plate of the technical scheme can complete the locking effect of the five cover plate assemblies only by arranging the anti-theft lock on the middle cover plate assembly, and has the advantages of small number of locks, simple structure and high opening efficiency.
In one embodiment, the middle cover plate assembly comprises a first cover plate body and a first frame arranged on the periphery of the first cover plate body; the first transmission cover plate assembly and the second transmission cover plate assembly respectively comprise a second cover plate body and a second frame arranged on the periphery of the second cover plate body, and the second frame is in limit fit with the middle cover plate assembly; the first outer side cover plate assembly and the second outer side cover plate assembly respectively comprise a third cover plate body and a third frame arranged on the periphery of the third cover plate body, and the third frame is in limit fit with the first transmission cover plate assembly or the second transmission cover plate assembly.
In one embodiment, a first limiting plate is arranged on one side, close to the middle cover plate assembly, of the second frame, and the second frame is in limiting fit with the middle cover plate assembly through the first limiting plate; and a second limiting plate is arranged on one side, close to the second frame, of the third frame, and the third frame is in limit fit with the first transmission cover plate assembly or the second transmission cover plate assembly through the second limiting plate.
In one embodiment, a first inserting portion is arranged on one side, close to the third frame, of the second frame, and a first inserting column matched with the first inserting portion is arranged on the third frame.
In one embodiment, a second inserting column is arranged on the limiting frame, and a second inserting part matched with the second inserting column is arranged on the third frame; and the second inserting part and the first inserting column are respectively arranged at two opposite sides of the third frame.
In one embodiment, the first limiting plate and the second limiting plate are both provided with dragging holes.
In one embodiment, the first cover plate body, the second cover plate body and the third cover plate body are all provided with vent holes.
In one embodiment, the first cover plate body, the second cover plate body and the third cover plate body are provided with pull-up holes.
In one embodiment, the anti-theft lock comprises a first lock and a second lock which are respectively arranged at two ends of the middle cover plate assembly, and a limiting hole matched with the first lock and the second lock is arranged on the limiting frame.
In one embodiment, the longitudinal sections of the middle cover plate assembly, the first transmission cover plate assembly, the second transmission cover plate assembly, the first outer side cover plate assembly and the second outer side cover plate assembly are all isosceles trapezoid structures.
Drawings
Fig. 1 is an exploded view of an anti-theft cover according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an anti-theft cover plate according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the first bezel shown in FIG. 2;
FIG. 4 is a schematic structural diagram of the second bezel shown in FIG. 2;
FIG. 5 is a schematic structural diagram of a third bezel shown in FIG. 2;
FIG. 6 is a first schematic structural diagram of the anti-theft lock shown in FIG. 1;
FIG. 7 is a second schematic structural view of the anti-theft lock shown in FIG. 1;
fig. 8 is a schematic structural diagram of an unlocking tool according to an embodiment of the present invention.
Description of reference numerals:
100. combining cover plates; 10. a middle cover plate assembly; 11. an anti-theft lock; 111. a lock frame; 112. a lock cylinder; 113. a latch bolt; 114. a limit bolt; 115. a limiting sheet; 116. an elastic slot member; 12. a first cover plate body; 121. a lock hole; 13. a first frame; 20. a first drive cover plate assembly; 21. a second cover plate body; 22. a second frame; 221. inserting holes; 23. a first limit plate; 231. dragging holes; 24. a first insertion part; 30. a second drive cover plate assembly; 40. a first outer cover assembly; 41. a third cover plate body; 42. a third frame; 43. a second limiting plate; 44. a first plug-in column; 45. a second insertion part; 50. a second outboard cover plate assembly; 60. an exhaust hole; 70. lifting and pulling the hole; 200. a limiting frame; 210. a second plug column; 220. a limiting hole; 300. a lid opening tool; 310. a main body lever; 320. a key; 330. a straight cross arm; 340. and lifting the handle.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
An anti-theft cover plate as shown in fig. 1-2, comprising: the cover plate assembly 100 and a limit frame 200 for limiting and fixing the cover plate assembly 100; the cover plate combination comprises a middle cover plate component 10 provided with an anti-theft lock 11, a first transmission cover plate component 20 and a second transmission cover plate component 30 which are respectively arranged at two opposite sides of the middle cover plate component 10 and are in limit fit with the middle cover plate, and a first outer cover plate component 40 and a second outer cover plate component 50 which are respectively arranged at the other side of the first transmission cover plate component 20 and the other side of the second transmission cover plate component 30 and are in limit fit with the first transmission cover plate component 20 and the second transmission cover plate component 30; the anti-theft lock 11 is matched and locked with the limiting frame 200; the first outer side cover plate assembly 40 and the second outer side cover plate assembly 50 are inserted into the limiting frame 200.
The anti-theft cover plate of the embodiment is simple in structure, few in lockset quantity, simple and fast to open, manpower and time are saved, and cable maintenance efficiency is improved. Specifically, when the anti-theft cover plate of the embodiment is used, the limit frame 200 matched with the maintenance worker well head is installed at the maintenance worker well head, then the first outer side cover plate assembly 40 and the second outer side cover plate assembly 50 are respectively inserted and installed on two opposite side walls of the limit frame 200, then the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 are respectively connected with the first outer side cover plate assembly 40 and the second outer side cover plate assembly 50 in a limit matching manner, finally the middle cover plate assembly 10 is connected with the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 in a limit matching manner, and the anti-theft lock 11 is started, so that the anti-theft lock 11 is in locking matching with the limit frame 200. When the anti-theft cover plate of the present embodiment needs to be opened, the anti-theft lock 11 must be unlocked first, then the middle cover plate assembly 10 is taken out, the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 which are in limit fit with the middle cover plate assembly 10 can be taken out, and finally the first outer cover plate assembly 40 and the second outer cover plate assembly 50 which are in limit fit with the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 are taken out. Therefore, the anti-theft cover plate of the embodiment can complete the locking effect of the five cover plate assemblies only by arranging the anti-theft lock 11 on the middle cover plate assembly 10, and has the advantages of small number of locks, simple structure and high opening efficiency.
As shown in fig. 1 to 5, the intermediate cover assembly 10 of the present embodiment includes a first cover body 12 and a first rim 13 provided on an outer periphery of the first cover body 12; the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 both comprise a second cover plate body 21 and a second frame 22 arranged on the periphery of the second cover plate body 21, and the second frame 22 is in limit fit with the middle cover plate assembly 10; the first outer side cover plate assembly 40 and the second outer side cover plate assembly 50 both include a third cover plate body 41 and a third frame 42 disposed on the periphery of the third cover plate body 41, and the third frame 42 is in limit fit with the first transmission cover plate assembly 20 or the second transmission cover plate assembly 30. Every apron body periphery all is equipped with the frame and bordures in order to protect the apron body not fragile promptly, promotes the bearing performance of apron simultaneously to through frame design limit structure, with the spacing cooperation of other adjacent apron subassemblies. Specifically, in the present embodiment, the first frame 13, the second frame 22, and the third frame 42 are stainless steel frames, and the first cover plate body 12, the second cover plate body 21, and the third cover plate body 41 are PC cover plates, so that the overall weight of the cover plate assembly is reduced, and the load-bearing performance is ensured.
In addition, the limiting frame 200 is a channel steel frame, which has high strength and is not easy to deform.
In this embodiment, a first limiting plate 23 is disposed on one side of the second frame 22 close to the middle cover plate assembly 10, and the second frame 22 is in limit fit with the middle cover plate assembly 10 through the first limiting plate 23. Specifically, the first limiting plate 23 is disposed at the bottom of the side edge of the second frame 22 and is in press fit with the bottom of the middle cover plate assembly 10, that is, the middle cover plate assembly 10 is located above the first limiting plate 23 and is pressed. Therefore, when the anti-theft cover plate of the present embodiment is opened, the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 on both sides can be taken out only by taking out the middle cover plate assembly 10, otherwise, the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 are limited and pressed by the middle cover plate assembly 10 and cannot be taken out.
Similarly, similar to the first limiting plate 43, in this embodiment, a second limiting plate 43 is disposed on one side of the third frame 42 close to the second frame 22, and the third frame 42 is in limit fit with the first transmission cover plate assembly 20 or the second transmission cover plate assembly 30 through the second limiting plate 43. The second limiting plate 43 is disposed at the bottom of the side edge of the third frame 42 and is in press fit with the bottom of the first transmission cover plate assembly 20 or the bottom of the second transmission cover plate assembly 30, so that when the anti-theft cover plate of the present embodiment is opened, only the middle cover plate assembly 10, the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 are taken out first, and the first outer cover plate assembly 40 and the second outer cover plate assembly 50 can be taken out, otherwise, the first outer cover plate assembly 40 and the second outer cover plate assembly 50 are respectively limited and pressed by the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 and cannot be taken out.
The first limiting plate 23 and the second limiting plate 43 are both steel plates, and are high in strength, not prone to deformation and high in bearing capacity.
In order to further enhance the connection stability of the anti-theft cover plate in this embodiment, so that the anti-theft cover plate is not easily pried open when the cover plate is closed, a first inserting portion 24 is disposed on one side of the second frame 22 close to the third frame 42, and a first inserting column 44 matched with the first inserting portion 24 is disposed on the third frame 42. Specifically, the first inserting portion 24 is an inserting hole, the first inserting column 44 is a steel bolt, in this embodiment, the steel bolts correspond to the inserting hole one by one, the number of the steel bolts is two, and the two steel bolts are arranged at intervals. In other embodiments, the number of steel studs may be increased or decreased as appropriate.
Similarly, a second inserting column 210 is arranged on the limiting frame 200, and a second inserting portion 45 matched with the second inserting column 210 is arranged on the third frame 42; the second inserting portion 45 and the first inserting column 44 are respectively disposed on two opposite sides of the third frame 42, and the limiting frame 200 and the third frame 42 are inserted and matched with each other through the second inserting column 210 and the second inserting portion 45. Specifically, the second inserting portion 45 is an inserting hole, the second inserting column 210 is two steel bolts, and the two steel bolts are arranged at intervals. In other embodiments, the number of steel studs may be increased or decreased as appropriate.
Since the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 are respectively inserted into the first outer cover plate assembly 40 and the second outer cover plate assembly 50, when the middle cover plate assembly 10 is taken out, if the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 need to be taken out, the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 need to be pulled in parallel to be removed from the insertion fit, and then the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 can be taken out, the first limiting plate 23 is provided with the pulling hole 231, and the pulling hole 231 is matched with a pulling tool for use, so that the first transmission cover plate assembly 20 and the second transmission cover plate assembly 30 can be conveniently translated. Similarly, the second limiting plate 43 is also provided with a pulling hole 231.
In the present embodiment, the first cover body 12, the second cover body 21, and the third cover body 41 are provided with the vent holes 60. Therefore, air in the overhaul worker well is communicated with the outside, and the influence on overhaul personnel caused by overlarge toxic gas amount in the overhaul worker well is avoided. Specifically, four exhaust holes 60 are formed in the first cover plate body 12, the second cover plate body 21 and the third cover plate body 41, and the four exhaust holes 60 are arranged at intervals.
In order to facilitate taking out the cover plate assembly 100 of the present embodiment from the limiting frame 200, the first cover plate body 12, the second cover plate body 21, and the third cover plate body 41 of the present embodiment are all provided with a pulling hole 70, and the pulling hole 70 is used in cooperation with a pulling tool, so as to facilitate vertically pulling out each cover plate assembly. Specifically, in the present embodiment, the number of the lifting holes 70 of the first cover body 12, the second cover body 21, and the third cover body 41 is two, and the two lifting holes 70 are arranged at intervals, so that an operator can lift the two lifting holes with both hands. The pull-up hole 70 according to the present embodiment is a rectangular hole.
As shown in fig. 1 and fig. 6 and 7, the anti-theft lock 11 of this embodiment includes a first lock and a second lock respectively disposed at two ends of the middle cover plate assembly 10, and the limiting frame 200 is provided with a limiting hole 220 matched with the first lock and the second lock. Specifically, the first lock and the second lock have the same structure and are respectively arranged on two opposite sides of the first cover plate body 12, each of the first lock and the second lock comprises a lock frame 111 connected with the first cover plate body 12, a lock cylinder 112 arranged on the lock frame 111, a lock tongue 113 connected with the lock cylinder 112, and a limit bolt 114 connected with the lock tongue 113, and the limit bolt 114 is in plug-in fit with the limit hole 220; the surface of the first cover plate body 12 is provided with a lock hole 121 butted with the lock cylinder 112, the anti-theft lock 11 is unlocked by matching the lock hole 121 with a key, and the first frame 22 is provided with a through hole 221 for the insertion of the limit bolt 114.
This embodiment still include with spacing piece 115 that the spring bolt 113 is connected, and with spacing piece 115 complex elasticity draw-in groove spare 116, elasticity draw-in groove spare 116 with lock frame 111 is connected, spacing piece 115 is kept away from spring bolt 113 one end card is gone into elasticity draw-in groove spare 116. This embodiment elasticity draw-in groove piece 116 is Z style of calligraphy elastic component, just the top of Z style of calligraphy elastic component be equipped with 113 joint complex recesses of spring bolt, just two opposite ends in recess bottom are equipped with the zigzag groove, and under the combined action through spacing piece 115 and elasticity draw-in groove piece 116, the recess both ends can enough restrict the range of motion about the spring bolt 113, and the zigzag groove can reach the mesh that can't unblank under the condition that does not have corresponding key again.
In this embodiment, the longitudinal sections of the middle cover plate assembly 10, the first transmission cover plate assembly 20, the second transmission cover plate assembly 30, the first outer cover plate assembly 40 and the second outer cover plate assembly 50 are all isosceles trapezoid structures. When the installation, locate the outside with the longer base of isosceles trapezoid structure, shorter base is located the maintenance worker well to make the clearance between each apron subassembly from top to bottom crescent, thereby when extracting or installing each apron subassembly, can drop the debris between each apron subassembly smoothly, prevent to block between each apron subassembly to have debris, further promote this embodiment the efficiency of opening of theftproof apron.
As shown in fig. 8, the present embodiment further includes a cap opening tool 300 used in cooperation with the cover assembly 100, the cap opening tool 300 includes a main body rod 310, a first end of the main body rod 310 is provided with a key 320 cooperating with the locking hole 121, and a second end of the main body rod 310 opposite to the first end is cooperating with the pulling hole 231; and a linear cross arm 330 is arranged on one side of the main body rod 310 close to the second end, and the linear cross arm 330 is shorter than the long rectangular side of the lifting hole 70 and longer than the short rectangular side of the lifting hole 70, so that the linear cross arm 330 can extend into the lifting hole 70 along the long rectangular side, and then the main body rod 310 is rotated by 90 degrees, and each cover plate assembly can be lifted. In the present embodiment, a lifting handle 340 is provided on the main body rod 310 near the first end, and the lifting handle 340 is a straight handle. So that the pulling handle 340 and the cross arm 330 are engaged with the main body pole 310, respectively, to form both ends of a cross shape on the main body pole 310. This embodiment main part pole 310 is hollow cylindrical steel pipe, light in weight, portable, a style of calligraphy cross arm 330 and carrying handle 340 are stainless steel, lockhole 121 is plum blossom shape lockhole, key 320 for with lockhole 121 complex plum blossom shape key.
When the cover opening tool 300 of the present embodiment is used to open the cover assembly 100, the key 320 is inserted into the lock hole 121 to open the anti-theft lock 11, then the main body rod 310 is reversed, the horizontal cross arm 330 is inserted into the lifting hole 70 of the middle cover assembly 10, and the middle cover assembly 10 is lifted up by rotating 90 degrees; then, the second end of the main body rod 310 is inserted into the pulling hole 231 in the first limit plate 43 for translation, and then the first transmission trench cover plate assembly 20 and the second transmission trench cover plate assembly 30 are lifted by using the I-shaped cross arm 330; first outer cover plate assembly 40 and second outer cover plate assembly 50 are removed in the same manner.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An anti-theft cover plate, comprising: the cover plate assembly and a limit frame for limiting and fixing the cover plate assembly; the cover plate combination comprises a middle cover plate component provided with an anti-theft lock, a first transmission cover plate component and a second transmission cover plate component which are respectively arranged on two opposite sides of the middle cover plate component and are in limit fit with the middle cover plate, and a first outer cover plate component and a second outer cover plate component which are respectively arranged on the other side of the first transmission cover plate component and the other side of the second transmission cover plate component and are in limit fit with the first transmission cover plate component and the second transmission cover plate component; the anti-theft lock is matched and locked with the limiting frame; the first outer side cover plate assembly and the second outer side cover plate assembly are in inserting fit with the limiting frame;
the middle cover plate assembly comprises a first cover plate body and a first frame arranged on the periphery of the first cover plate body; the first transmission cover plate assembly and the second transmission cover plate assembly respectively comprise a second cover plate body and a second frame arranged on the periphery of the second cover plate body, and the second frame is in limit fit with the middle cover plate assembly; the first outer side cover plate assembly and the second outer side cover plate assembly respectively comprise a third cover plate body and a third frame arranged on the periphery of the third cover plate body, and the third frame is in limit fit with the first transmission cover plate assembly or the second transmission cover plate assembly; a first limiting plate is arranged on one side, close to the middle cover plate assembly, of the second frame, and the second frame is in limiting fit with the middle cover plate assembly through the first limiting plate; a second limiting plate is arranged on one side, close to the second frame, of the third frame, and the third frame is in limit fit with the first transmission cover plate assembly or the second transmission cover plate assembly through the second limiting plate; the first limiting plate and the second limiting plate are both provided with dragging holes; the first cover plate body, the second cover plate body and the third cover plate body are all provided with lifting holes.
2. The anti-theft cover plate according to claim 1, wherein a first inserting portion is provided on a side of the second rim adjacent to the third rim, and a first inserting column engaged with the first inserting portion is provided on the third rim.
3. The anti-theft cover plate according to claim 2, wherein a second plug-in post is arranged on the limit frame, and a second plug-in part matched with the second plug-in post is arranged on the third frame; and the second inserting part and the first inserting column are respectively arranged at two opposite sides of the third frame.
4. The anti-theft cover plate according to claim 1, wherein the number of the lifting holes of the first cover plate body, the second cover plate body and the third cover plate body is two, and the two lifting holes are arranged at intervals.
5. The anti-theft cover plate according to claim 1, wherein the first cover plate body, the second cover plate body and the third cover plate body are provided with vent holes.
6. The anti-theft cover plate according to claim 5, wherein four vent holes are formed in each of the first cover plate body, the second cover plate body and the third cover plate body, and the four vent holes are arranged at intervals.
7. The anti-theft cover plate according to claim 1, wherein the anti-theft lock comprises a first lock and a second lock respectively arranged at two ends of the middle cover plate assembly, and the limiting frame is provided with a limiting hole matched with the first lock and the second lock.
8. The anti-theft cover plate according to claim 7, wherein the first lock and the second lock have the same structure and are respectively arranged on two opposite sides of the first cover plate body, each of the first lock and the second lock comprises a lock frame connected with the first cover plate body, a lock core arranged on the lock frame, a lock tongue connected with the lock core, and a limit bolt connected with the lock tongue, and the limit bolt is in inserted fit with the limit hole; the surface of the first cover plate body is provided with a lock hole in butt joint with the lock cylinder, the anti-theft lock is unlocked through the cooperation of the lock hole and a key, and the first frame is provided with a through hole for the insertion of the limiting bolt.
9. The security cover of claim 1, wherein the longitudinal cross-sections of the middle cover assembly, the first transmission cover assembly, the second transmission cover assembly, the first outer cover assembly and the second outer cover assembly are all isosceles trapezoid structures.
10. The anti-theft cover plate according to claim 1, further comprising a cover opening tool, wherein the cover opening tool comprises a main body rod, a first end of the main body rod is provided with a key, the key is used for being matched with the lock hole of the anti-theft lock, and a second end, opposite to the first end, of the main body rod is matched with the dragging hole; the main body rod is provided with a straight cross arm corresponding to the lifting hole on one side close to the second end, and the length of the straight cross arm is smaller than the long rectangular edge of the lifting hole and larger than the short rectangular edge of the lifting hole.
CN201910965096.8A 2019-10-11 2019-10-11 Anti-theft cover plate Active CN110656661B (en)

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CN110656661B true CN110656661B (en) 2021-07-27

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205159887U (en) * 2015-11-23 2016-04-13 江山惠企科技服务有限公司 Cable inlet -outlet direction adjustable box -type substation
CN108462138A (en) * 2018-02-09 2018-08-28 温州嘉成工程项目管理有限公司 A kind of cable duct and its construction method
CN208329002U (en) * 2018-06-05 2019-01-04 深圳供电局有限公司 A kind of anti-theft power cable well lid
CN209040621U (en) * 2018-09-26 2019-06-28 艺搭环保科技（上海）有限公司 A kind of platform builds system
CN209162894U (en) * 2018-07-27 2019-07-26 江苏纳派电气科技有限公司 Trench composite outlet cover board

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205159887U (en) * 2015-11-23 2016-04-13 江山惠企科技服务有限公司 Cable inlet -outlet direction adjustable box -type substation
CN108462138A (en) * 2018-02-09 2018-08-28 温州嘉成工程项目管理有限公司 A kind of cable duct and its construction method
CN208329002U (en) * 2018-06-05 2019-01-04 深圳供电局有限公司 A kind of anti-theft power cable well lid
CN209162894U (en) * 2018-07-27 2019-07-26 江苏纳派电气科技有限公司 Trench composite outlet cover board
CN209040621U (en) * 2018-09-26 2019-06-28 艺搭环保科技（上海）有限公司 A kind of platform builds system

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