CN2151096Y

CN2151096Y - Light float for engineering

Info

Publication number: CN2151096Y
Application number: CN 93205343
Authority: CN
Inventors: 付正伟
Original assignee: Zhejiang Harbour Maintenance Team
Current assignee: Zhejiang Harbour Maintenance Team
Priority date: 1993-03-05
Filing date: 1993-03-05
Publication date: 1993-12-29
Anticipated expiration: 2003-03-05

Abstract

The utility model discloses a light float for engineering. The light float for engineering is formed by the mesh bag of the outer sleeve of a floating body made of light material, or is formed by a floating body whose middle conducting hole is embedded with a guard pipe and a hook which is penetrated in the guard pipe and is connected with a heavy lid. While in use, the floats can uniformly tie and prick on the lifting lugs of the pipeline or steel cables at the both sides according to design requirements, or special purpose hooks are used for hooking and fixing the floats in the lifting lugs on the pipeline on land. Thus, the underwater laying constructs of pipelines or underwater salvages can be done. After constructing, the floats can be disengaged underwater, and are recovered to be used next time. The utility model has the advantages of simple structure, convenient operation, light weight, convenient transportation, low cost, bulk production and manufacture, and security without maintenance.

Description

Light float for engineering

It is being to be contained on the pipeline to increase the lightweight engineered float of pipeline buoyancy under water in the tubine engineering at the bottom of seabed or the river that the utility model relates to a kind of use.(hereinafter to be referred as float)

Now under water in the tubine engineering the conventional method of using all be unable to do without submarine line carried out the weight adjusting, make pipeline be little positive buoyancy or negative lift state under water.The steel pipe that all calibers more than several one hundred millimeters are poured water and, every meter weight is all more than several one hundred kilograms.Not excessive for guaranteeing tractive force, construction stress is no more than allowed band, need to regulate steel pipe weight in the general underwater construction, make its every meter weight only be tens kilograms, so needing appreciiable auxiliary float ties up on the pipeline when construction, use to regulate and alleviate the weight of pipeline in water, the back dismounting of waiting to have constructed.

Now Chang Yong float is many is welded into cylindrical shell or casing by steel plate, and its volume is big, Heavy Weight, making, handling and loading are all pretty troublesome, and easily get rusty, maintenance, maintenance, labour intensity are big, bounce is very big, very dangerous during dismounting.

The purpose of this utility model is to provide a kind of lightweight engineered float, it is in light weight, volume is little, making is easy, carrying, easy to loading and unloading, safely, be suitable for land operation.

The utility model is achieved in that lightweight engineered is made up of anchor fitting, buoyancy aid with float, and in the middle of buoyancy aid overcoat mesh bag of being made by light material or the buoyancy aid through hole is arranged, and is formed by linking up with load lid bonded assembly it on.

Fig. 1. structural representation of the present utility model.

Fig. 2. alternative plan structural representation of the present utility model.

Fig. 3. third party's case structural representation of the present utility model.

Fig. 4. the part enlarged drawing of Fig. 3.

Fig. 5. the running condition scheme drawing.

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

The foamed plastic proportion that generally is used to pack use is 0.022 gram per centimeter ³Below, now adopting proportion is 0.025 gram per centimeter ³More than and the low foamed plastic of water absorption rate is made various difform buoyancy aids (1), (5), (10).

Mesh bag (2), (2) ' be woven into by fine human relations, continuous human relations, nylon wire, pipeline can be steel pipe (4) or cement pipe etc.

Buoyancy aid (1) is a solid, and overcoat mesh bag (2) also draw in to constitute float (16) with sack.

Screw rod (15) one ends are screw thread, and an end is that semi-circular crotch flexibly connects into the single-piece annulus with semi-circular movable hook (14) with pin (13), fixing spherical pad (12) and constitute hook (11) with nut (7) locking again on it.

Buoyancy aid (10) is embedded with the solid sphere of nylon sheath wire (9) for there is through hole the centre in the through hole, the arc load lid (8) that steel plate is made with penetrate in sheath (9) hook (11) with nut (7) the formation float (18) that links into an integrated entity.

Buoyancy aid (5) is the tile that is complementary with pipe shape, overcoat mesh bag (2) ' and with two ends sack gathering formation float (17).

During use, on the land or the water surface float fastened equably on the wirerope (6) of the hanger (3) of steel pipe (4) or both sides, or with movable hook (14), screw rod (15) fastener hanger (3) internal fixation on steel pipe (4) of hook on (11), steel pipe (4) just can carry out underwater construction.After pipeline lays completion under water, float thrown off or cut off the colligation rope by the diver, float promptly emerges, reclaim one by one again by surface boat, for using next time, operation, use, conveniently, safety.

Diameter is 820 millimeters of Φ, 1110 meters of pipe ranges, and full weight is that more than 260 ton steel pipe fastens 1000 floats and makes the weight of pipeline in water reduce to more than 40 ton, steel pipe can be drawn the river with 2 small winch.

The utility model is compared with prior art: because of general job site, surface condition is very poor, transportation difficulty all, and this float manufacturing simply can be mass, and is easy to use, in light weight, be convenient to transportation, manually all can transmit. Again much bigger than steel float because of its net buoyancy, but the relative much less of the required float quantity of same engineering is saved cost and is also made tubine stressed evenly, be suitable for the land operation to reduce labor intensity, underwater demolition is convenient and safe after the construction, does not need any auxiliary equipment, can repeatedly use, need not maintain.

Claims

1, a kind of lightweight engineered float is made up of anchor fitting, buoyancy aid, it is characterized in that the buoyancy aid by the light material making, and buoyancy aid overcoat mesh bag constitutes float.

2, float according to claim 1 is characterized in that light material is that water absorption rate is low, proportion is 0.025 gram per centimeter ³Above foamed plastic, mesh bag (2), (2) ' be woven into by fine human relations, continuous human relations, nylon wire etc.

3, float according to claim 1 is characterized in that buoyancy aid (1) is a solid, and overcoat mesh bag (2) also draw in to constitute float (16) with sack.

4, float according to claim 1 is characterized in that buoyancy aid (5) is the tile that is complementary with pipe shape, overcoat mesh bag (2) ' and with two ends sack gathering formation float (17).

5, float according to claim 1, it is characterized in that screw rod (15) one ends are screw thread, one end is that semi-circular crotch flexibly connects into the single-piece annulus with semi-circular movable hook (14) with pin (13), fixing spherical pad (12) and constitute hook (11) with nut (7) locking again on it.

6, float according to claim 1, it is characterized in that buoyancy aid (10) has through hole for the centre, be embedded with the solid sphere of nylon sheath wire (9) in the through hole, the arc load lid (8) that steel plate is made with penetrate hook (11) in sheath (9) with nut (7) the formation float (18) that links into an integrated entity.