CN2470406Y

CN2470406Y - Anti-theft manhole cover

Info

Publication number: CN2470406Y
Application number: CN 01215368
Authority: CN
Inventors: 李仲吉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-27
Filing date: 2001-02-27
Publication date: 2002-01-09
Anticipated expiration: 2011-02-27

Abstract

The utility model provides an anti-theft manhole cover comprising a manhole cover and a manhole ring. The manhole cover is provided with a step pivot shaft, and the manhole ring is provided with an open type step shaft sleeve. The opening of the open type step shaft sleeve is downward, and the manhole cover is connected with the manhole ring by the step pivot shaft and the open type step shaft sleeve in a matched mode. The anti-theft manhole cover has the advantages of simple structure, convenient manufacture, easy assembly, reliable and safe use, and better antitheft performance.

Description

Anti-stealing manhole cover

The utility model relates to a kind of inspection shaft lid, particularly a kind of can effectively antitheft anti-stealing manhole cover.

The general at present inspection shaft lid that uses is the monolithic inspection shaft lid of cylinder iron casting, though the inspection shaft of this form lid is economical and practical, easy to install and use, theftproof performance is relatively poor.In order to overcome the shortcoming of this inspection shaft lid, provide a kind of anti-stealing manhole cover in the patent No. in the utility model of " 99245014.4 ", it comprises well lid and base, base is fixedlyed connected with well head, the bottom surface of well lid and base is respectively equipped with and is connected push rod and Connection Block, connect by linking arm between connection push rod and the Connection Block, the two ends of linking arm are connected with the top that is connected push rod and Connection Block respectively by connecting pin; Be difficult for being stolen though this inspection shaft lid fuses well lid and base, owing to also need by the linking arm connection, so the structure more complicated, consumptive material is also more; Each tie point adopts connecting pin to connect, and the assembling construction also comparatively bothers.

The purpose of this utility model is to overcome the shortcoming that prior art exists, and anti-stealing manhole cover a kind of simple in structure, easy to assembly is provided.

For achieving the above object, this anti-stealing manhole cover comprises well lid and walling crib, and well lid is provided with the ladder hinge, and walling crib is provided with open ladder axle sleeve, Open Side Down for open ladder axle sleeve, and well lid and walling crib are by the binding that matches of ladder hinge and open ladder axle sleeve.

The outer end of open ladder axle sleeve is the structure of sealing on the described walling crib.

Described well lid and walling crib can be circle, ellipse or rectangle.

Position near open ladder axle sleeve on the described walling crib is provided with reinforcing rib.

Described well lid is provided with the convenient perforate that well lid is mentioned.

Action principle of the present utility model is: the opening part of installing before this anti-stealing manhole cover earlier the open ladder axle sleeve of the ladder hinge on the well lid on the walling crib packs in the open ladder axle sleeve, then walling crib is fixed on ground, Open Side Down and quilt ground face closure for open ladder axle sleeve at this moment, ladder hinge on the well lid can freely rotate in open ladder axle sleeve, can mention or put down well lid so easily to open or to seal inspection shaft.

The utility model compared with prior art has following advantage: (1) is because the mode that this anti-stealing manhole cover has adopted multidiameter to match with the ladder axle sleeve links well lid and walling crib, so structure is very simple, well lid can cast out with the multidiameter one, walling crib can cast out with ladder axle sleeve one, so make also very convenient, again owing to adopted the structure of open ladder axle sleeve, so axle is very easy to the assembling of axle sleeve, avoid the cumbersome shortcoming of existing inspection shaft lid assembling, can save production cost and reduce the workload of installation; (2) because the mode that this anti-stealing manhole cover has adopted ladder to cooperate, so possibility that this anti-stealing manhole cover can avoid the destroyed back of hinge one end or walling crib well lid to be drawn out of on one side, just must be as stealing this inspection shaft lid well lid, walling crib and pavement destruction, so it is more safe and reliable that this anti-stealing manhole cover uses, theftproof performance is better; (3) after this anti-stealing manhole cover was opened, well lid stood on by the inspection shaft, and the suitable tangible sign caution inspection shaft of well lid this moment is opened, can prevent the generation of contingency so effectively.

Fig. 1 is the well lid structural representation of the utility model anti-stealing manhole cover.

Fig. 2 is the walling crib structural representation of the utility model anti-stealing manhole cover.

Fig. 3 is the shape figure of the open ladder axle sleeve of walling crib shown in Figure 2.

Fig. 4 is the schematic diagram of another structure of well lid of the utility model anti-stealing manhole cover.

Fig. 5 is the schematic diagram of another structure of walling crib of the utility model anti-stealing manhole cover.

Fig. 6 is the shape figure of the open ladder axle sleeve of walling crib shown in Figure 5.

Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.

Embodiment 1:

The utility model anti-stealing manhole cover is made up of as shown in Figures 1 and 2 square well lid 1 and square walling crib 4, and square well lid 1 is provided with ladder hinge 2, and ladder hinge 2 is cast as one with square well lid 1, is made of the big circular shaft of the little circular shaft in inboard and the outside; Square walling crib 4 is provided with open ladder axle sleeve 5, its structure as shown in Figure 3, Open Side Down for open ladder axle sleeve 5, its outer end is the structure of sealing, ladder axle sleeve 5 comprises two hole slots not of uniform size, the less hole slot in aperture is positioned at the inboard of ladder axle sleeve 5, the bigger hole slot in aperture is positioned at the outside of ladder axle sleeve 5, ladder hinge 2 on the square well lid 1 matches with the open ladder axle sleeve 5 of square walling crib 4 to install and links, in addition, position near open ladder axle sleeve 5 on square walling crib 4 is provided with reinforcing rib 6, is provided with the convenient perforate 3 that square well lid 1 is mentioned on square well lid 1.

This anti-stealing manhole cover packs into the opening of the open ladder axle sleeve 5 of the ladder hinge 2 on the square well lid 1 on the square walling crib 4 in the open ladder axle sleeve 5 earlier when mounted, then square walling crib 4 is fixed on ground, reinforcing rib 6 on the square walling crib 4 can be strengthened the bonding strength on square walling crib 4 and ground, Open Side Down and quilt ground face closure for open ladder axle sleeve 5 at this moment, ladder hinge 2 on the square well lid 1 can freely rotate in open ladder axle sleeve 5, can utilize perforate 3 on the square well lid 1 to mention easily like this or puts down square well lid 1 to open or to seal inspection shaft.

Embodiment 2:

Another structure of the utility model anti-stealing manhole cover is by being formed as Fig. 4 and round manhole cover 7 and circular walling crib 8 shown in Figure 5, and circular walling crib 8 is provided with open ladder axle sleeve 9, its structure as shown in Figure 6, the structure of other parts and mounting method are with embodiment 1.

Claims

1, a kind of anti-stealing manhole cover, comprise well lid (1) and walling crib (4), it is characterized in that: well lid (1) is provided with ladder hinge (2), walling crib (4) is provided with open ladder axle sleeve (5), Open Side Down for open ladder axle sleeve (5), and well lid (1) and walling crib (4) are by the binding that matches of ladder hinge (2) and open ladder axle sleeve (5).

2, anti-stealing manhole cover according to claim 1 is characterized in that: the outer end of the open ladder axle sleeve (5) on the described walling crib (4) is the structure of sealing.

3, anti-stealing manhole cover according to claim 1 is characterized in that: described well lid (1) and walling crib (4) are circle, ellipse or rectangle.

4, according to claim 1 or 2 or 3 described anti-stealing manhole covers, it is characterized in that: the position that described walling crib (4) goes up near open ladder axle sleeve (5) is provided with reinforcing rib (6).

5, according to claim 1 or 3 described anti-stealing manhole covers, it is characterized in that: described well lid (1) is provided with the convenient perforate (3) that well lid is mentioned.