CN2628606Y

CN2628606Y - Glass fibre reinforced plastic square manhole shaft gully grating

Info

Publication number: CN2628606Y
Application number: CN 03249490
Authority: CN
Inventors: 张锡祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-11
Filing date: 2003-07-11
Publication date: 2004-07-28
Anticipated expiration: 2013-07-11

Abstract

A manhole lid with glass fiber reinforced plastic square lids, comprising a manhole lid seat and a square lid board with a starting and closing hole in a manhole lid , is characterized in that the square lid board made of glass fiber reinforced plastic, and the manhole lid seat are hollow, the hollow cavum in the manhole lid seat is arranged with a GRP ripple stiffening rib, plugging compound is arranged in the upper space between the GRP ripple stiffening rib and the manhole lid board, and the hollow manhole lid seat is arranged with plugging compound. The utility model has light self-weight, high intensity, anti-corrosion and strong security, and is not only applied to the urban road, a subdistrict that family lives, but also to corrosive medium environments such as acid, alkali, salt, sewage and so on.

Description

The inspection shaft lid of the square lid of glass fiber reinforced plastic

(1), affiliated technical field

The utility model relates to a kind of inspection shaft lid, particularly a kind of glass fiber reinforced plastic inspection shaft lid.

(2), technical background

Existing inspection shaft is stamped cement structures, and its weak point is an insufficient strength, and is fragile.The inspection shaft lid of the iron structure after improving though remedied the deficiency of said structure, has big, the easily stolen deficiency, and poor corrosion resistance of weight, easy corrosion.

(3), summary of the invention

The purpose of this utility model just provides a kind of inspection shaft lid from heavy and light, intensity height, the corrosion-resistant and square lid of glass fiber reinforced plastic that theftproof is strong.

The purpose of this utility model is to realize by such technical scheme, it includes the square well lid plate in manhole cover base and band well lid keying hole, it is characterized in that: well lid plate and the manhole cover base hollow made by glass fiber reinforced plastic, be provided with GRP ripple stiffening rib in the cavity of well lid plate hollow, be provided with inserts in the upper space that GRP ripple stiffening rib and well lid plate are surrounded, be provided with inserts in the manhole cover base of hollow.The effect of GRP ripple stiffening rib is the intensity that improves the well lid plate.

Owing to adopted technique scheme, the utlity model has following advantage:

1. from heavy and light: glass fiber reinforced plastic inspection shaft lid weight is 1/4th of iron structure only, is 1/7th of concrete well cover, need only singlely just can operate and cover well lid, and project installation and use open and close light and flexible.

2. intensity height: the tensile strength of glass-reinforced plastic material and A ₃Steel is suitable, and compressive strength rate C30 concrete doubles above, and shock resistance, vibration, fatigue, fracture property are better than steel, iron, concrete material, and as the well lid of load-carrying construction, the Strength Safety condition satisfies technical requirements than concrete well cover is easier.

3. theftproof is strong: fibre glass product manufacture does not have the waste recovery value, can avoid the iron and steel well lid often to be stolen the hidden danger of selling cheap as the inspection shaft lid as waste product, thereby the pre-stolen mistake of preventing well cover plate causes people's car to fall into or be stuck in the interior traffic accident of well, reduces owner's economic loss and accident responsibility.

4. corrosion resistance is strong: glass-reinforced plastic material has natural corrosion resistance, is used for the well lid of corrosive environments such as acid, alkali, salt, sewage, and the well lid of making than steel, iron, concrete material has more technology, economic competition advantage.

(4), description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is a structural representation of the present utility model;

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

Among the figure: 1. manhole cover base; 2. well lid opens and closes the hole; 3. well lid plate; 4.GRP ripple stiffening rib; 5.PUF sandwich or GRC sandwich; 6.PUF sandwich or GRC sandwich.

(5), the specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, 2, the utility model includes the square well lid plate 3 in manhole cover base 1 and band well lid keying hole 2, it is characterized in that: well lid plate 3 and manhole cover base 1 hollow made by glass fiber reinforced plastic, be provided with GRP ripple stiffening rib 4 in the cavity of well lid plate 3 hollows, be provided with inserts in the upper space that GRP ripple stiffening rib 4 and well lid plate 3 are surrounded, be provided with inserts in the manhole cover base 1 of hollow.

As shown in Figure 1, for when ensuring the quality of products, alleviate the weight of well lid plate 3, the inserts in the well lid plate 3 is PUF sandwich or GRC sandwich 5.

As shown in Figure 1, for when ensuring the quality of products, alleviate the weight of manhole cover base 1, the inserts in the manhole cover base (1) is PUF sandwich or GRC sandwich 6.

Claims

1. the inspection shaft of the square lid of glass fiber reinforced plastic covers, include the square well lid plate (3) that manhole cover base (1) and band well lid open and close hole (2), it is characterized in that: well lid plate (3) and manhole cover base (1) hollow made by glass fiber reinforced plastic, be provided with GRP ripple stiffening rib (4) in the cavity of well lid plate (3) hollow, be provided with inserts in the upper space that GRP ripple stiffening rib (4) and well lid plate (3) are surrounded, the manhole cover base of hollow is provided with inserts in (1).

2. the inspection shaft lid of the square lid of glass fiber reinforced plastic as claimed in claim 1, it is characterized in that: the inserts in the well lid plate (3) is PUF sandwich or GRC sandwich (5).

3. the inspection shaft lid of the square lid of glass fiber reinforced plastic as claimed in claim 1, it is characterized in that: the inserts in the manhole cover base (1) is PUF sandwich or GRC sandwich (6).