CN109667285B

CN109667285B - Labyrinth type anti-theft well cover

Info

Publication number: CN109667285B
Application number: CN201910155855.4A
Authority: CN
Inventors: 韩正华
Original assignee: Jiaxing Hengli Building Materials Technology Co ltd
Current assignee: Jiaxing Hengli Building Materials Technology Co ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2023-06-30
Anticipated expiration: 2039-03-01
Also published as: CN109667285A

Abstract

The invention discloses a labyrinth type anti-theft well cover, which comprises a cover base, a cover body and an anti-theft bolt, wherein the cover base is cylindrical, the center of the cover base is provided with a through hole, the inner wall of the through hole is provided with a plurality of ring grooves parallel to the top surface, vertical connecting grooves are arranged between the ring grooves, the side wall of the cover base is provided with notches communicated with the ring grooves or the connecting grooves, the cover body comprises a circular cover body and a plurality of bulges positioned at the edge of the cover body, the bulges are provided with second threaded holes, the top surface of the cover base is provided with a first threaded hole corresponding to the position of the second threaded hole, the anti-theft bolt is screwed into the first threaded hole and the second threaded hole in sequence, so that the cover body is fixed in the cover base, and people can quickly move the cover body away from a labyrinth type groove channel according to a specified route from the notches of the cover base and cannot be taken out from the upper and lower openings of the cover base, thereby avoiding the loss and theft of the cover body.

Description

Labyrinth type anti-theft well cover

[ field of technology ]

The invention relates to the technical field of well covers, in particular to the technical field of labyrinth type anti-theft well covers.

[ background Art ]

Both the underground drains and the underground pipeline passages are generally provided with inspection wells, and inspection well covers are installed at the entry ports of the inspection wells. The manhole covers arranged on urban roads and sidewalks are mostly made of rolling-resistant cast iron because of the need of bearing a large amount of rolling. The well cover made of cast iron has a certain recovery value, and the anti-theft measures are imperfect, so that the well cover is extremely easy to be stolen. Theft of the manhole cover can also cause loss or damage to items in the underground piping, such as cables or pipes in the underground piping of the power or communications department, and thus cause a series of property damage. In addition, loss and damage to the well lid can threaten the safety of pedestrians or vehicles walking on the road, and even lead to casualties. At present, a series of problems caused by the problem of well lid safety become a hidden trouble in urban safety.

[ invention ]

The invention aims to solve the problems in the prior art, and provides a labyrinth type anti-theft manhole cover, which can form a labyrinth type groove channel by arranging a plurality of parallel ring grooves and vertical connecting grooves in a cover base, so that people can quickly move a cover body into a notch of a manhole wall from a notch of the cover base according to a specified route according to a pointer and an angle mark, thereby opening the manhole cover; the cover body can not be taken out from the upper opening and the lower opening of the cover base, so that the loss and theft are avoided, and meanwhile, the anti-theft bolt which is required to be opened by a special anti-theft wrench is matched, so that the anti-theft of the well cover is further realized.

In order to achieve the above purpose, the invention provides a labyrinth type anti-theft well cover, which comprises a cover base, a cover body and an anti-theft bolt, wherein the cover base is of a cylindrical shape with a through hole in the center, a plurality of ring grooves parallel to the top surface are arranged on the inner wall of the through hole, vertical connecting grooves are arranged between the ring grooves, a notch communicated with the ring grooves or the connecting grooves is arranged on the side wall of the cover base, the cover body comprises a circular cover body and a plurality of bulges positioned at the edge of the cover body, a second threaded hole is arranged on the bulges, a first threaded hole corresponding to the second threaded hole in position is arranged on the top surface of the cover base, and the anti-theft bolt is screwed into the first threaded hole and the second threaded hole in sequence to fix the cover body in the cover base.

Preferably, the top surface of the cover body is provided with an inwardly concave handle.

Preferably, the center of the cover body is provided with a pointer, and the top surface of the cover base is provided with an angle mark.

Preferably, the aperture of the through hole is consistent with the diameter of the cover body.

Preferably, the inner diameter of the ring groove is consistent with the distance from the center of the circle of the cover body to the protruding edge.

Preferably, the height of the ring groove is identical to the height of the cover body.

Preferably, the cross-sectional shape of the connecting groove is consistent with the cross-sectional shape of the protrusion.

Preferably, the anti-theft bolt is a bolt with an irregular notch on a screw head, the notch is Z-shaped or star-shaped, the anti-theft bolt is required to be opened by an anti-theft wrench, and the anti-theft wrench is provided with a protrusion matched with the notch in shape.

The invention has the beneficial effects that: according to the invention, the labyrinth groove channel is formed by arranging the plurality of parallel ring grooves and the vertical connecting grooves in the cover base, so that people can quickly move the cover body into the notch of the well wall from the notch of the cover base according to the designated route according to the pointer and the angle mark, and the well cover is opened; the cover body can not be taken out from the upper opening and the lower opening of the cover base, so that the loss and theft are avoided, and meanwhile, the anti-theft bolt which is required to be opened by a special anti-theft wrench is matched, so that the anti-theft of the well cover is further realized.

The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a top view of a labyrinth type anti-theft manhole cover of the present invention;

FIG. 2 is a front cross-sectional view of a labyrinth type anti-theft manhole cover of the present invention;

fig. 3 is a schematic perspective view of a cover base of the labyrinth type anti-theft manhole cover.

In the figure: 1-lid base, 11-annular groove, 12-connecting groove, 13-first screw hole, 14-incision, 15-through hole, 16-angle mark, 2-lid, 21-lid body, 211-handle, 212-pointer, 22-protrusion, 221-second screw hole and 3-theftproof bolt.

[ detailed description ] of the invention

Referring to fig. 1, 2 and 3, the labyrinth type anti-theft manhole cover of the present invention comprises a cover base 1, a cover body 2 and an anti-theft bolt 3, wherein the cover base 1 is a cylinder with a through hole 15 in the center, a plurality of ring grooves 11 parallel to the top surface are arranged on the inner wall of the through hole 15, vertical connecting grooves 12 are arranged between the ring grooves 11, a notch 14 communicated with the ring grooves 11 or the connecting grooves 12 is arranged on the side wall of the cover base 1, the cover body 2 comprises a circular cover body 21 and a plurality of protrusions 22 positioned at the edge of the cover body 21, a second threaded hole 221 is arranged on the protrusions 22, a first threaded hole 13 corresponding to the position of the second threaded hole 221 is arranged on the top surface of the cover base 1, the anti-theft bolt 3 is screwed into the first threaded hole 13 and the second threaded hole 221 in sequence so as to fix the cover body 2 in the cover base 1, the top surface of lid body 21 is equipped with inwards sunken handle 211, the central authorities of lid body 21 are equipped with pointer 212, the top surface of lid base 1 is equipped with angle mark 16, the aperture of through-hole 15 is unanimous with the diameter of lid body 21, the internal diameter of annular 11 is unanimous with the centre of a circle of lid body 21 to the distance of protruding 22 edge, the height of annular 11 is unanimous with the height of lid body 21, the shape of spread groove 12 cross section is unanimous with protruding 22 cross section shape, antitheft bolt 3 is the bolt that the spiral shell takes irregular shape notch, and the notch shape is Z style of calligraphy or star, antitheft bolt 3 must be opened with the theftproof spanner, have the arch with notch shape looks adaptation on the theftproof spanner.

The working process of the invention comprises the following steps:

firstly, the cover 1 is installed in a well, and a notch corresponding to the notch 14 is arranged on the well wall for plugging the cover 2. When the well lid needs to be opened, the anti-theft bolt 3 is firstly screwed out by the anti-theft wrench, then the handle 211 is held, the cover body 2 is rotated in the annular groove 11 of the first layer by a certain angle, the bulge 22 is aligned with the connecting groove 12, and the cover body 2 is enabled to fall into the annular groove 11 of the next layer. This is repeated until the cover 2 falls down onto the ring groove 11 or the connecting groove 12 at the same level as the notch 14, and the cover 2 is horizontally moved so that the cover 2 is separated from the base 1 from the notch 14 and enters a preset notch in the well. When the well lid needs to be closed, the cover body 2 is translated back into the cover base 1 from the notch and is put back into the annular groove 11 of the first layer by layer. During the process, the pointer 212 and the angle mark 16 can assist a person in knowing the angle at which the cover 2 rotates within the cover 1, thereby moving the cover 2 out of the labyrinth groove channel within the cover 1 more quickly.

According to the invention, the labyrinth groove channel is formed by arranging the plurality of parallel ring grooves and the vertical connecting grooves in the cover base, so that people can quickly move the cover body into the notch of the well wall from the notch of the cover base according to the designated route according to the pointer and the angle mark, and the well cover is opened; the cover body can not be taken out from the upper opening and the lower opening of the cover base, so that the loss and theft are avoided, and meanwhile, the anti-theft bolt which is required to be opened by a special anti-theft wrench is matched, so that the anti-theft of the well cover is further realized.

The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.

Claims

1. The utility model provides a labyrinth type theftproof well lid which characterized in that: including lid (1), lid (2) and theftproof bolt (3), lid (1) be the cylinder type that the central authorities have through-hole (15), be equipped with a plurality of annular (11) parallel with the top surface on the inner wall of through-hole (15), be equipped with vertical spread groove (12) between annular (11), be equipped with on the lateral wall of lid (1) with annular (11) or spread groove (12) be linked together incision (14), lid (2) include circular shape lid body (21) and be located a plurality of protruding (22) of lid body (21) edge, be equipped with second screw hole (221) on protruding (22), the top surface of lid (1) is equipped with first screw hole (13) corresponding with second screw hole (221) position, thereby be equipped with lid (2) fixed in lid (1) first screw hole (13) and second screw hole (221), the top surface of lid body (21) is equipped with sunken handle body (211), the central authorities of lid body (21) are equipped with sign angle (16) of top surface (1), a notch corresponding to the notch (14) is arranged at the well wall of the well for installing the cover base (1) so as to be plugged by the cover body (2); when the well lid needs to be opened, firstly, the anti-theft bolt (3) is unscrewed by the anti-theft wrench, then the handle (211) is held to rotate the cover body (2) in the annular groove (11) of the first layer by a certain angle until the bulge (22) is aligned with the connecting groove (12) and the cover body (2) falls into the annular groove (11) of the next layer, and then the steps are repeated until the cover body (2) falls into the annular groove (11) which is positioned at the same level with the notch (14) or the connecting groove (12), and then the cover body (2) is horizontally moved so as to enable the cover body (2) to be separated from the cover base (1) from the notch (14) and enter a preset notch in the well; when the well lid needs to be closed, the operation is performed reversely.

2. The labyrinth type anti-theft manhole cover as claimed in claim 1, wherein: the aperture of the through hole (15) is consistent with the diameter of the cover body (21).

3. The labyrinth type anti-theft manhole cover as claimed in claim 1, wherein: the inner diameter of the ring groove (11) is consistent with the distance from the center of the cover body (21) to the edge of the bulge (22).

4. The labyrinth type anti-theft manhole cover as claimed in claim 1, wherein: the height of the ring groove (11) is consistent with the height of the cover body (21).

5. The labyrinth type anti-theft manhole cover as claimed in claim 1, wherein: the cross section of the connecting groove (12) is consistent with the cross section of the bulge (22).

6. The labyrinth type anti-theft manhole cover as claimed in claim 1, wherein: the anti-theft bolt (3) is a bolt with an irregular notch on a screw head, the notch is Z-shaped or star-shaped, the anti-theft bolt (3) is opened by an anti-theft wrench, and the anti-theft wrench is provided with a bulge matched with the notch in shape.