CN2310804Y

CN2310804Y - Circular theft-proof sand manhole cover

Info

Publication number: CN2310804Y
Application number: CN 97208605
Authority: CN
Inventors: 温桂松
Original assignee: Individual
Current assignee: Wen Guisong
Priority date: 1997-01-22
Filing date: 1997-01-22
Publication date: 1999-03-17
Anticipated expiration: 2007-01-22

Abstract

The utility model belonging to the improvement of a circular sand manhole cover which is composed of a manhole body, a manhole outer ring, an inner ring panel, an inner ring soleplate, a safety groove, a safety key, a supporting edge, etc. A manhole cover outer ring is arranged on a supporting edge of the manhole body, and the inner ring panel is arranged on the supporting edge of the outer ring. The back of the panel is provided with the inner ring soleplate, and the back and the inner ring are respectively provided with a safety key. The safety key of the utility model must be simultaneously rotated to the position of the safety groove, the inner ring panel can be opened, and the phenomenon of being stolen can be effectively prevented. The utility model has the advantages of novel design and easy fabrication.

Description

The antitheft manhole cover of garden shape

The utility model belongs to the improvement of garden shape manhole cover.

Existing garden shape manhole cover is widely used in the well head of road effluent sewerage well, and its weak point is that this well lid does not have anti-theft device, is often stolen, and causes the national wealth loss and produces the personal safety accident.

The purpose of this utility model is to avoid above-mentioned weak point of the prior art and a kind of antitheft manhole cover of garden shape that is provided with safety key, safety groove anti-theft device of providing

The purpose of this utility model can realize by following measure: the well lid outer ring is set in the well body, on the well lid outside, the outer ring safety key is set, the inner ring side-strut is set on the inner edge, the inner ring panel is set on the inner ring side-strut, and rotating hole is set, at the inner ring back side of panel inner ring base plate is set, and be solidified as a whole by securing member and inner ring panel, the outer ring safety key is set on base plate, establish the outer ring scale in the well lid outside, inner edge is established the inner ring scale, and the outer ring side-strut is set on the well body, and safety groove is set on side-strut.

The utility model has following advantage compared to existing technology: because the utility model improves prior art, the anti-theft device of safety key, safety groove composition is set, thereby one is to make national wealth avoid loss; The 2nd, the assurance road is flat to be swung, and avoids personal injury to take place.

The accompanying drawing drawing is described as follows:

Fig. 1 is the utility model front view.

Fig. 2 is that the utility model is along the A-A sectional view.

Fig. 3 is the utility model rear elevation.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to accompanying drawing 1-3, the utility model is by well lid outer ring 1, well lid inner ring panel 2, outer ring scale 3, inner ring scale 4, well lid inner ring base plate 5, inner ring rotating hole 6, outer ring rotating hole (lifting hole) 7, securing member 8, safety groove 9, inner ring safety key 10, outer ring safety key 11, inner ring side-strut 12, outer ring side-strut 13, well body 14 is formed, in well body 14, be provided with and rotate well lid outer ring 1 flexibly, on 1 outside, well lid outer ring, outer ring safety key 11 is set, inner edge is provided with inner ring side-strut 12, on the inner ring side-strut, be provided with and rotate inner ring panel 2 flexibly, and rotating hole (lifting hole) 7 is set, at inner ring panel 2 back sides inner ring base plate 5 is set, and be solidified as a whole by securing member 8 and inner ring panel 2, safety key 11 is set on base plate, scale 3 is established in the outside on well lid outer ring 1, inner edge is established scale 4, outer ring side-strut 13 is set on well body 14, safety groove 9 is set on outer ring side-strut 13.

Operating principle: this technology adopts the principle of coded lock, reach antitheft purpose by adjusting to two safety grooves of well lid and four safety keys, two safety keys that are arranged at two safety keys of well lid inner ring panel and are arranged at well lid inner ring base plate can rotate arbitrarily, have only when four safety keys drop on the position of safety groove simultaneously, could open, as shown in drawings, when inner ring panel arrow goes to 180 degree, when the well lid outer ring goes to the position of 0 degree shown in the arrow, article four, safety key drops on the safety groove position, open this moment smoothly, performs the password record during installation.

Claims

A kind of antitheft manhole cover of forming by well body (14), well lid outer ring (1) of garden shape, it is characterized in that this manhole cover also is made up of inner ring panel (2), outer ring scale (3), inner ring scale (4), inner ring base plate (5), inner ring rotating hole (6), outer ring rotating hole (7), securing member (8), safety groove (9), inner ring safety key (10), outer ring safety key (11), inner ring side-strut (12), outer ring side-strut (13), well lid outer ring (1) is set in well body (14).On well lid outer ring (1) outside, outer ring safety key (11) is set, inner edge is provided with inner ring side-strut (12), inner ring panel (2) is set on inner ring side-strut (12), and rotating hole (7) is set, at inner ring panel (2) back side inner ring base plate (5) is set, and be solidified as a whole by securing member (8) and inner ring panel (2), safety key (11) is set on base plate, establish scale (3) in well lid (1) outside, inner edge is established scale (4), outer ring side-strut (13) is set on well body (14), safety groove (9) is set on outer ring side-strut (13).