CN100447350C

CN100447350C - GRP examine and repair hole structure and manufacturing method of GRP examine and repair hole and connection tube

Info

Publication number: CN100447350C
Application number: CNB200510088951XA
Authority: CN
Inventors: 郑哲权; 赵文秀; 辛承福
Original assignee: KOREA GLASS FIBRE CO Ltd
Current assignee: KOREA GLASS FIBRE CO Ltd
Priority date: 2004-12-22
Filing date: 2005-08-03
Publication date: 2008-12-31
Anticipated expiration: 2025-08-03
Also published as: CN1793528A; KR100500913B1

Abstract

The invention relates to the examine and repair holes underground, concretely relates to the GRP examine and repair hole structure and manufacturing method of GRP examine and repair hole and connection tube. The examine and repair holes in the invention comprise main body, connecting tube, flange and so on. Said main body and connecting tube comprise the internal layer composed by synthetic resin with fiberglass in it, the intermediate layer formed by mortar piled up outside the internal layer, the external layer formed by synthetic resin with fiberglass in it, which piles up outside the intermediate layer. Because the internal layer and the external layer are formed by synthetic resin with fiberglass, the intermediate layer is composed by mortar, the said GRP examine and repair hole structure has advantages of small weight, good flexibility and seal ability, long service life and so on.

Description

The main body of GRP manhole structure and GRP manhole and the manufacture method of tube connector

Technical field

The present invention relates to be embedded in the manhole of below, road surface, relate in particular to GRP (glass fiber reinforced plastics) (Glass-fiber Reinforced Plastics) manhole structure and the main body of GRP manhole and the manufacture method of tube connector, owing to used synthetic resin and glass fiber (Glass-fiber), GPR manhole of the present invention is in light weight, it is good and prolong application life to be easy to construction, elasticity and watertightness.

Background technology

Generally speaking, manhole is for the maintainer road surface of coming in and going out is provided with, and place, basic point or the crosspoint that diameter that the position generally is a pipe or direction change, the middle part of longer linear pipe etc. are set, and also can be used for ventilating or connecting pipe duct.

With regard to shape,, quadrangle, ellipse etc. are arranged also in addition so that construction is at most circular.Generally make support or there is stone material at the base around the inlet, the circular lid that covers diameter usually and be about 60 centimetres, makes by cast iron or steel concrete with iron and steel.

Main body is generally made with concrete or fragment of brick, and the internal diameter major part of pipeline is about 1～1.2 meter, and the bottom generally equates with duct bottom or be low, makes it can hold sediment.The degree of depth is different according to the degree of depth of pipeline, sometimes can be above 100 meters.

Manhole generally is embedded in underground, and both sides and tube connector form one below the manhole main body, are provided with flange at the main body upper and lower, are provided with lid at main body top center position.

Such manhole is generally integrally formed by concrete, can set up concrete in the scene, or directly uses the concrete products of making definite shape to construct.

If concrete is set up at the scene, then need to prepare earlier the mould of definite shape, in the mould that sets, insert reinforcing bar, inject concrete then, so the construction more complicated, engineering is postponed, and is easy to cause traffic disturbance.

Make the situation that the concrete products of certain form is constructed for direct use, need to make product up to specification in factory in advance, transport the job site then to and construct, so need employ large-scale heavy equipment, make troubles to manufacturing process, also increased the funds expenditure simultaneously.

In addition, use the integrally formed method of concrete, can make the flexibility decrease of product itself, descend to some extent for the durability of factors such as foundation vibration, the while watertightness is relatively poor, and application life is also corresponding shorter.

On the other hand, GRP is the complexing agent that is mixed and made into by unsaturated polyester resin (Unsaturated Polyester Resin) and glass fiber (Glass-Fiber), having good corrosion-resistant and heat resistance, is a kind of reinforced plastics that is widely used in industries such as petrochemical industry, building, leisure, automobile, environment.

Summary of the invention

The present invention proposes for overcoming the above problems, purpose is to be easy to construct by using GRP, providing, manufacture method is simple, have GRP manhole structure and the main body of GRP manhole and the manufacture method of tube connector that favorable elasticity and watertightness and application life prolong.

The GRP manhole structure that the present invention relates to be embedded in the below, road surface and comprise main body, tube connector, flange etc., it is characterized in that described main body and tube connector comprise: by inside add the internal layer that synthetic resin constituted that glass fiber is arranged, by the formed intermediate layer of mortar that is deposited in the internal layer outside, add the formed skin of synthetic resin that glass fiber is arranged by the inside that is deposited in the outside, intermediate layer.

The feature of the manhole structure that the present invention relates to is that the flange of described main body upper and lower is made of concrete, has the ladder of a plurality of panels internal layer being provided with of main body, and be coated with synthetic resin on described panel.

The feature of the main body of the GRP manhole that is embedded in the below, road surface that the present invention relates to and the manufacture method of tube connector is, this method comprises: the internal layer shaping stage, be used for synthetic resin is wrapped in by motor-driven die frame, twine glass fiber in the synthetic resin outside, twine synthetic resin again in the glass fiber outside then, to form internal layer; The intermediate layer shaping stage is used for mortar is covered described internal layer outside, to form the intermediate layer; Outer shaping stage is used for synthetic resin is wrapped in outside, described intermediate layer, twines glass fiber in the synthetic resin outside, twines synthetic resin again in the glass fiber outside then, to form skin; In the sclerosis stage, the internal layer, intermediate layer, the skin that are used at high temperature will being shaped harden.

The feature of the GRP manhole main body that the present invention relates to and the manufacture method of tube connector is that this method also comprises: in the punching stage, be used for getting relative hole below the GRP manhole main body of having hardened; Access phase is used for connecting the tube connector that has hardened on the hole of getting.

Description of drawings

Fig. 1 is the stereogram of the GRP manhole structure that the present invention relates to of expression;

Fig. 2 is the sectional drawing of the GRP manhole structure that the present invention relates to of expression;

Fig. 3 is the flow chart of the forming process of the main body of the GRP manhole that the present invention relates to of expression and tube connector.

＜description of reference numerals 〉

1: motor 2: die frame

3: heater and thickness adjusting plate 4: ladder

5: cutting machine 6: reinforcing bar

7: caulking gum

10: main body 10a: tube connector

11: internal layer 11a: synthetic resin

11b: glass fiber 12: intermediate layer

12a: mortar 13: skin

13a: synthetic resin 13b: glass fiber

20: flange 30: lid

40: panel 50: synthetic resin

The specific embodiment

With reference to accompanying drawing, to being described in detail as follows of the preferred embodiment for the present invention.

Fig. 1 is the stereogram of the GRP manhole structure that the present invention relates to of expression; Fig. 2 is the sectional drawing of the GRP manhole structure that the present invention relates to of expression; Fig. 3 is the flow chart of the forming process of the main body of the GRP manhole that the present invention relates to of expression and tube connector.

As shown in the figure, the GRP manhole that the present invention relates to is embedded in underground, and its structure comprises main body 10, tube connector 10a, flange 20, lid 30.

Described main body 10 and tube connector 10a form one, and the flange of main body 10 upper and lowers 20 is made of concrete.

Described main body 10 and tube connector 10a are made up of internal layer 11, intermediate layer 12 and outer 13, and internal layer 11 and outer 13 is made of synthetic resin such as polyethylene, and its inside has added very

thin glass fiber

11b, 13b respectively.

Intermediate layer 12 is deposited between described internal layer 11 and outer 13, is formed by mortar.

The forming process of described internal layer 11,

intermediate layer

12 and 2 skins 13 as shown in Figure 3, main body 10 and tube connector 10a utilize the die frame 2 that is driven by motor 1 to make.

Described die frame 2 is made by stainless steel, surface coverage be used to form the plastics of diffusion barrier.

It at first is the shaping stage of internal layer 11, promptly on described die frame 2, twine synthetic resin 11a such as polyethylene, twine glass fiber 11b thinly in described synthetic resin 11a outside then, then twine synthetic resin 11a such as polyethylene once more in described glass fiber 11b outside.

Be the shaping stage in intermediate layer 12 then, promptly at described internal layer 11 outside covering mortar 12a.

Be the shaping stage of skin 13 afterwards, promptly twine synthetic resin 13a such as polyethylene in 12 outsides, described intermediate layer, twine glass fiber 13b thinly in described synthetic resin 13a outside then, then twine synthetic resin 13a such as polyethylene once more in described glass fiber 13b outside.

That is, at internal layer 11 that is formed by synthetic resin and the outer 13 inner glass fiber 11b that add, 13b makes lighter overall weight, has improved elasticity and sealing simultaneously.

Then, in order at high temperature to be hardened with desired thickness in internal layer 11, the intermediate layer 12 and outer 13 of above-mentioned shaping, make it by heater and thickness adjusting plate 3.

By above process, the forming process of each layer 11,12,13 finishes, and then by cutting machine 5, is cut into the cylindrical-shaped main body 10 or the tube connector 10a of Len req.

In addition, need to connect the main body 10 and the tube connector 10a of above-mentioned sclerosis, described connection is to get relative hole below the GRP of above-mentioned sclerosis manhole main body 10, connects the tube connector 10a of sclerosis then in above-mentioned hole respectively.

At last, have the ladder 4 of a plurality of panels 40 in described main body 10 internal layer settings, and on described panel 40 coverage of synthetic resin 50.

Like this, just can under the state of the internal layer 11 that does not damage main body 10 fully, intermediate layer 12 and skin 13, ladder 4 be set.

The invention effect

As mentioned above, the GRP manhole structure that the present invention relates to and the main body of GRP manhole and the manufacture method of tube connector, have in light weight, be easy to construct, manufacturing process is easy, elasticity and sealing is good, the advantage of long service life.

The present invention is not limited to concrete example described above, and under the situation that does not break away from inventive concept and scope, those skilled in the art can carry out numerous variations or distortion, so this change or distortion are still within the scope of claim.

Claims

1, a kind of GRP manhole structure that is embedded in the below, road surface and comprises main body, tube connector, flange, it is characterized in that described main body and tube connector comprise: by inside add the internal layer that synthetic resin constituted that glass fiber is arranged, by the formed intermediate layer of mortar that is deposited in described internal layer outside, add the formed skin of synthetic resin that glass fiber is arranged by the inside that is deposited in the outside, intermediate layer; Have the ladder of a plurality of panels internal layer being provided with of described main body, and on described panel, be coated with synthetic resin.

2, GRP manhole structure as claimed in claim 1 is characterized in that, described flange is positioned at the upper and lower of main body and is made of concrete.

3, a kind of GRP manhole main body of below, road surface and manufacture method of tube connector of being embedded in is characterized in that this method comprises:

The internal layer shaping stage is used for synthetic resin is wrapped in by motor-driven die frame, twines glass fiber in the synthetic resin outside, twines synthetic resin again in the glass fiber outside then, to form internal layer;

The intermediate layer shaping stage is used for mortar is covered described internal layer outside, to form the intermediate layer;

Outer shaping stage is used for synthetic resin is wrapped in outside, described intermediate layer, twines glass fiber in the synthetic resin outside, twines synthetic resin again in the glass fiber outside then, to form skin; And

In the sclerosis stage, the internal layer, intermediate layer, the skin that are used for being shaped at high temperature harden.

4, the manufacture method of GRP manhole main body as claimed in claim 3 and tube connector is characterized in that, this method also comprises:

In the punching stage, be used for below described GRP manhole main body of having hardened, getting relative hole;

Access phase is used for connecting the described tube connector that has hardened on described hole of getting.