CN202164626U - Burglarproof manhole structure - Google Patents

Abstract

The utility model discloses a burglarproof manhole structure which comprises a manhole ring, a bottom supporting seat, a rotating ring and a manhole cover, wherein the manhole ring and the bottom supporting seat are fixed with a road bed; at least two lugs are arranged on the back surface of the ring cover; the rotating ring is arranged on the bottom supporting seat, the manhole ring is sleeved into the bottom supporting seat from the outer side and clamps an outward flange of the bottom of the rotating ring, openings matched with the lugs on the manhole cover are arranged on the flange at the upper part of the bottom supporting seat and the inner flange at the bottom of the rotating ring; the manhole cover covers on the inner flange at the bottom of the rotating ring and is clamped between the inner flange at the bottom of the rotating ring and the flange at the upper part of the bottom supporting seat. When the burglarproof manhole structure is used, hidden marks are arranged on the ring cover, the bottom supporting seat and the rotating ring, the manhole cover can be taken out only by rotating the manhole cover and the rotating ring to a certain angle according to the hidden marks, or the burglarproof manhole structure is locked. The burglarproof manhole structure has the advantages that the burglarproof manhole structure has good burglarproof performance, cannot rust easily and is convenient to use.

Description

A kind of anti-stealing manhole structure

Technical field

The utility model relates to a kind of anti-stealing manhole structure, can be applied to the inspection shaft construction of industries such as various telecommunications, electric power, fire-fighting, water supply, air feed, draining.

Background technology

There is a large amount of pipeline pipelines in the urban road, need carries out inspection and maintenance through inspection shaft.The inspection shaft device is made up of walling crib and well lid, when walling crib is generally constructed in the roadside and roadbed fix, well lid then is an active type, can get into inspection shaft and carries out manually-operated through opening well lid.Process because well lid is a metal material such as cast iron, certain recovery value is arranged, stolen phenomenon often takes place, bring very big potential safety hazard for like this down-hole facility and pedestrian, vehicle.Tracing it to its cause, mainly is that the anti-theft capability of current well lid is relatively poor.

For solving the antitheft problem of well lid, occurred certain methods and product at present both at home and abroad, but iron chains formula, hinge type anti-theft device anti-theft capability commonly used are limited, can't solve antirust dead problem preferably; Though theft preventing methods such as hidden-locked, magnetic force dead bolt and shift fork joint coordinated type can prevent that the down-hole facility is stolen, exist that complex process, cost are high, the dead shortcoming such as serious of self rust, can not be satisfactory in the actual practicality.Some has designed comparatively anti-theft locking pin device, but its complex structure, processing cost is higher, does not solve antirust problem well.

The utility model content

The purpose of the utility model is to propose good, the not easy rusting anti-stealing manhole structure dead, easy to use of a kind of theftproof performance.

Realize that the technical scheme that the utility model purpose adopts is: the anti-stealing manhole structure comprises and a fixing walling crib and the bottom bracing base of roadbed that the cross section of walling crib and bottom bracing base is a zigzag; A cross section is the swivel becket of inverted T-shape; The back side of a band profiled holes is provided with the well lid of at least two lugs; Wherein said swivel becket places on the bottom bracing base, and said walling crib is nested into from the outside on the bottom bracing base and the bottom outward flange of swivel becket is blocked; All have on the upper flange of said bottom bracing base and the bottom internal flange of swivel becket with well lid on the opening that matches of lug; Well lid covers on the bottom internal flange of swivel becket, and is stuck in through lug on the upper flange of bottom internal flange and bottom bracing base of swivel becket.

Generally speaking, because the position of opening and lug at random, well lid is blocked by bottom bracing base and swivel becket, can not take out.Rotate both to correct position and have only, when axially all overlapping mutually, could well lid be taken out at each lug and corresponding two openings.

It is outer that the lug of well lid is installed in the well lid inboard through welding procedure, blocks bottom bracing base and swivel becket through it, because it has certain thickness and width, can guarantee to install the back well lid like this and have good pick-proof intensity, is difficult to destroy with foreign object.In addition, lug is designed to circumferentially asymmetric, and relative pressure ring of well lid and swivel becket have only unique taking-up angle like this, have increased theftproof.The angle of corresponding lug on well lid all is processed with corresponding opening on bottom bracing base and swivel becket, the size of opening is wideer slightly than lug, can guarantee certain antirust ability like this.

The key of taking out well lid is to regulate the angle of revolution of bottom bracing base, swivel becket and well lid; This mainly discerns through dark mark is set when mounted; Dark mark is waited by the lip-deep miniature circular hole of three, texture or pattern to be realized; Have certain customization, disguise, can set by municipal sector.This scheme also has good flexibility, in case the dark mark of release is stolen, can change scheme, has same theftproof performance fully.

When constructing in the roadside, at first bottom bracing base, swivel becket and walling crib are imbedded the inspection shaft edge, swivel becket places on the outer rim of bottom bracing base; Walling crib places the outside; And keep the circular gap of swivel becket consistent, inject concrete then with bottom bracing base and walling crib secure fixation, and swivel becket can be free movable.The three can adopt casting technique to accomplish, and material is a ductile iron, and surfacing gets final product, and does not need too high required precision.

The utility model also has good anti-destructive, vibration proof impact capacity and the antirust combination property of waiting indefinitely except theftproof, pavement construction is simple, supporting use.Antirust extremely is to guarantee through gap between turning circle and the well lid and the opening bigger slightly than lug; Vibration proof impacts and anti-destructive mainly is that design through lug realizes, existing higher intensity can not cause the concuss of well lid again.In addition, this device has only four parts, and manufacturing process is all simple, so other anti-stealing manhole cover device is compared relatively, whole cost is lower.

Further specify the structural design scheme of the utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the vertical view of well lid among Fig. 1.

Fig. 4 is the vertical view of swivel becket among Fig. 1.

Fig. 5 is the vertical view of bottom bracing base among Fig. 1.

Among the figure: 1-swivel becket, 2-walling crib, 3-concrete, 4-bottom bracing base, 5-well lid, 6-lug, 7-breach, 8-breach, 9-profiled holes.

The specific embodiment

As illustrated in fig. 1 and 2, the anti-stealing manhole structure of the utility model comprises that cross section is Z-shaped walling crib 2, the bottom bracing base 4 that cross section is zigzag, the swivel becket 1 that cross section is inverted T-shape and the well lid 5 that is provided with two profiled holes 9; During the inspection shaft construction; Earlier bottom bracing base 4 is imbedded the well; Then that swivel becket 1 is placed on it, then walling crib 2 is nested into from the outside on the bottom bracing base 4 and the bottom outward flange of swivel becket 1 is blocked, the outside of walling crib 2 and bottom bracing base 4 and below fill concrete make walling crib 2 fixing with bottom bracing base 4; After foundation construction finishes, guarantee that swivel becket 1 can freely circumferentially rotate; Be provided with three at the back side of well lid 5 and be the lug 6 that non-isogonism distributes, make to become an angle between profiled holes 9 and the lug 6 α,Match with lug 6 on the well lid 5 being provided with three breach 7 on the bottom internal flange of swivel becket 1, match with lug 6 on the well lid 5 being provided with three breach on bottom bracing base 4 upper flange; Well lid 5 covers on the bottom internal flange of swivel becket 1, and is stuck in through lug 6 on the upper flange of bottom internal flange and bottom bracing base 4 of swivel becket 1.

Signal is printed on literal " Changsha ", the swivel becket 1 on the walling crib 2 and is printed on " 2011 " in the utility model, with they with well lid 5 on profiled holes 9 as mark secretly.Release is that the center line, " 0 " the word center on the swivel becket 1 and " sand " word center three on the walling crib 2 that make two profiled holes 9 on the well lid 5 aim at; Swivel becket 1 and the breach 7,8 of bottom bracing base 4 and lug 6 axial overlaps on the well lid like this, well lid 5 can be loaded onto or take out.After well lid 5 installs, arbitrarily swivel becket 1 and well lid 5 are rotated an angle, can guarantee that well lid 5 is locked, have stronger theftproof performance.

Further specify in the face of this down.With reference to Fig. 3, during processing well lid 5, cast out well lid 5 main parts earlier, then 3 lugs 6 are welded from the bottom, become an angle between profiled holes 9 on the well lid 5 and the lug 6 α, 3 lugs are non-isogonism and distribute, and can change different during practical application according to actual conditions αCarry out the design and the laying of manhole lid device everywhere, embody better otherness and theftproof.With reference to Fig. 4, when making swivel becket 1, inscribe " 2011 " printed words at first in the above, be benchmark with " 0 " word center line then, according to the distribution angle of lug 6 αCast out 3 square breach 7 in the above and match with lug 6, the size of breach 7 is bigger slightly than lug 6.With reference to Fig. 5, in processing during bottom bracing base 4, select a certain reference line earlier equally, cast out 3 square breach 8 in the above according to the distribution angle of lug 6 equally and match the size of breach 8 and breach 7 basically identicals with lug 6 on the well lid 5.When carrying out pavement construction, the angle that square aperture 10 forms on " sand " word center line on the needs adjustment walling crib 2 and the bottom bracing base 4 does α, and then carry out concrete pouring.

Claims (1)

1. a kind of anti-stealing manhole structure is characterized in that comprising and a fixing walling crib and the bottom bracing base of roadbed that the cross section of walling crib and bottom bracing base is a zigzag; A cross section is the swivel becket of inverted T-shape; The back side of a band profiled holes is provided with the well lid of at least two lugs; Wherein said swivel becket places on the bottom bracing base, and said walling crib is nested into from the outside on the bottom bracing base and the bottom outward flange of swivel becket is blocked; All have on the upper flange of said bottom bracing base and the bottom internal flange of swivel becket with well lid on the opening that matches of lug; Well lid covers on the bottom internal flange of swivel becket, and is stuck in through lug on the upper flange of bottom internal flange and bottom bracing base of swivel becket.

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