CN2628605Y

CN2628605Y - Glass fibre reinforced plastic round manhole cover

Info

Publication number: CN2628605Y
Application number: CN 03249488
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 circular lids, comprising a manhole lid seat and a circular lid board with a starting and closing hole in a manhole lid, is characterized in that the manhole lid board and the manhole lid seat are made of glass fiber reinforced plastic, the outer edge of the lower part of the manhole lid board is arranged with a self-locking mortise and tenon, the manhole lid seat is arranged with a self-locking mouth and a self-locking holder which are matched with the self-locking mortise and tenon. The utility model has self-possessed light, high self-locking, 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 glass fiber reinforced plastic circular lid

(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 that weight is big, easily stolen deficiency, and automobile crosses easily and jumps out of poor corrosion resistance, easy corrosion.

(3), summary of the invention

The purpose of this utility model just provide a kind of from heavy and light, self-locking performance is strong, intensity is high, the inspection shaft of the corrosion-resistant and glass fiber reinforced plastic circular lid that theftproof is strong lid.

The purpose of this utility model is to realize by such technical scheme, it includes the circular well cover plate in manhole cover base and band well lid keying hole, it is characterized in that: well lid plate and manhole cover base are to be made by glass fiber reinforced plastic, outer, well lid plate bottom is provided with well lid self-locking trip, and manhole cover base is provided with self-locking bayonet and the self-locking deck that cooperates with well lid self-locking trip.

The utility model is to use like this: when need cover the well lid plate, open and close by well lid and to be put on the manhole cover base after the hole makes four well lid self-locking trips of well lid plate aim at four self-locking bayonets on the manhole cover base, then, angle of turn well lid plate, make well lid self-locking trip be positioned at the self-locking deck bottom of manhole cover base, make between well lid plate and the manhole cover base locking each other, thereby make jumping out of of well lid plate because of vibration when preventing that automobile from crossing.When need are opened the well lid plate, open and close angle of hole opposite spin well lid plate by well lid, make self-locking trip on the well lid plate be positioned at self-locking bayonet place on the manhole cover base, upwards carry the well lid plate again, just can open the well lid plate like a cork.

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. self-locking performance is strong: because the well lid plate is provided with well lid self-locking trip, manhole cover base is provided with self-locking bayonet and self-locking deck, therefore, well lid plate and manhole cover base is retrained mutually, prevent that automobile from crossing after, the well lid plate jumps out of manhole cover base.

3. 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.

4. 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, car to fall into or be stuck in the interior traffic accident of well, reduces owner's economic loss and accident responsibility.

5. 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 the structural representation of the utility model well lid plate, and the center line left side is the outward appearance front view, and the right side is a sectional view;

Fig. 2 is the bowing of Fig. 1, upward view, and the center line left side is a vertical view, and the right side is a upward view;

Fig. 3 is the structural representation of first kind of embodiment of manhole cover base, and the center line left side is the outward appearance front view, and the right side is a sectional view;

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the structural representation of second kind of embodiment of manhole cover base, and the center line left side is the outward appearance front view, and the right side is a sectional view;

Fig. 6 is the vertical view of Fig. 5.

Among the figure: 1. manhole cover base; 2. well lid opens and closes the hole; 3. well lid plate; 4. well lid self-locking trip; 5. self-locking bayonet; 6. self-locking deck; 7. well lid stiffening rib; 8.GRP ripple, cellular sandwich, foam core or GRC sandwich; 9. manhole cover base base plate; 10. manhole cover base walling crib; 11. manhole cover base stiffening rib; 12.PUF sandwich or GRC sandwich.

(5), the specific embodiment

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

Shown in Fig. 1,3,4,5,6, the utility model includes the circular well cover 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 are to be made by glass fiber reinforced plastic, outer, well lid plate 3 bottom is provided with well lid self-locking trip 4, and manhole cover base 1 is provided with self-locking bayonet 5 and the self-locking deck 6 that cooperates with well lid self-locking trip 4.

The utility model is to use like this: when need cover well lid plate 3, be put on the manhole cover base 1 after opening and closing four self-locking bayonets 5 that hole 2 aims on the manhole cover base 1 four well lid self-locking trips 4 of well lid plate 3 by well lid, then, 3 one angles of turn well lid plate, make well lid self-locking trip 4 be positioned at self-locking deck 6 bottoms of manhole cover base 1, make between well lid plate 3 and the manhole cover base 1 locking each other, thereby make jumping out of of well lid plate 3 because of vibration when preventing that automobile from crossing.When need are opened well lid plate 3, open and close 3 one angles of hole 2 opposite spin well lid plates by well lid, make self-locking trip 4 on the well lid plate 3 be positioned at self-locking bayonet 5 places on the manhole cover base 1, upwards carry well lid plate 3 again, just can open well lid plate 3 like a cork.

As shown in Figure 1, 2, in order to strengthen the intensity of well lid plate 3, well lid plate 3 is provided with well lid stiffening rib 7.

As shown in Figure 1, for when ensuring the quality of products, alleviate the weight of well lid plate 3, well lid plate 3 hollows wherein are provided with GRP ripple, cellular sandwich, foam core or GRC sandwich 8.Wherein: GRP is the english abbreviation of glass fiber reinforced plastic, and GRC is the english abbreviation of glass fiber reinkorced concrete.

Shown in Fig. 3,4, manhole cover base 1 can be that manhole cover base base plate 9 is provided with manhole cover base walling crib 10, and manhole cover base base plate 9 is provided with and manhole cover base walling crib 10 all-in-one-piece manhole cover base stiffening ribs 11.The effect of manhole cover base stiffening rib 11 is the intensity that strengthens manhole cover base 1.This manhole cover base belongs to embed-type, and its advantage is attractive in appearance, succinct, but needs seven days engineering time.

Shown in Fig. 5,6, for when ensuring the quality of products, alleviate the weight of manhole cover base 1, manhole cover base 1 hollow wherein is provided with PUF sandwich or GRC sandwich 12.Wherein: PUF is the english abbreviation of the stearic foam of polyamine fat.This manhole cover base belongs to flat placed type, only need be positioned on the road surface and just can use, and it is very convenient to construct, but lacks the Pan American sense.

Claims

1. the inspection shaft of a glass fiber reinforced plastic circular lid covers, include the circular well cover 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) are to be made by glass fiber reinforced plastic, well lid plate (3) outer, bottom is provided with well lid self-locking trip (4), and manhole cover base (1) is provided with self-locking bayonet (5) and the self-locking deck (6) that cooperates with well lid self-locking trip (4).

2. the inspection shaft lid of glass fiber reinforced plastic circular lid as claimed in claim 1, it is characterized in that: well lid plate (3) is provided with well lid stiffening rib (7).

3. the inspection shaft lid of glass fiber reinforced plastic circular lid as claimed in claim 1, it is characterized in that: well lid plate (3) hollow wherein is provided with GRP ripple, cellular sandwich, foam core or GRC sandwich (8).

4. the inspection shaft as claim 1,2 or 3 described glass fiber reinforced plastic circular lid covers, it is characterized in that: manhole cover base (1) is that manhole cover base base plate (9) is provided with manhole cover base walling crib (10), and manhole cover base base plate (9) is provided with and manhole cover base walling crib (10) all-in-one-piece manhole cover base stiffening rib (11).

5. as the inspection shaft lid of claim 1,2 or 3 described glass fiber reinforced plastic circular lid, it is characterized in that: manhole cover base (1) hollow wherein is provided with PUF sandwich or GRC sandwich (12).