CN2830567Y

CN2830567Y - Precast hollow tube

Info

Publication number: CN2830567Y
Application number: CN 200520031598
Authority: CN
Inventors: 王树建
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-22
Filing date: 2005-08-22
Publication date: 2006-10-25
Anticipated expiration: 2015-08-22

Abstract

The utility model relates to a stuffing component used for the pouring of the cored slab pore-forming, particularly to a precast hollow tube. The precast hollow tube comprises a tube body and end plates, wherein the two end plates at both ends are sheathed in the hollow tube body, and the hollow tube is formed to be a closed inner chamber. The hollow tube is in a prism tubular structure, the internal surface is in a circle shape, and the external surface is in the shape of a regular polygon. The inner wall of the preset hollow tube of the utility model is circular, and the manufacturing technique is simple, and the processing and the production are easy. The production cost is reduced, and the production efficiency is effectively improved. Because the inner wall of the preset hollow tube is circular, the binding place of each ridge inside of the outer wall of the hollow tube, namely the place of the bearing stress point, is thick and can bear more pressure. Therefore, the utility model has higher strength and is not easy to break in the process of being used and transported. Besides, the product quality is higher.

Description

The precast hollow pipe

One, technical field: the utility model relates to the noggin piece that a kind of cast-in-place notes hollowcore slab pore-forming is used, and particularly relates to a kind of precast hollow pipe.

Two, background technology: in present house or the bridge construction process of construction, seldom used prefabricated hollow floor, because of its Heavy Weight, installed, use, transport all inconveniences, waste of manpower, material resources, financial resources.After using cast-in-place technology cast-in-site hollowcore slab instead, often adopt some permanent cores, as paper tube, plastic pipe, metal bellows, what also have becomes pole with conducts such as cement fibre pipes, these materials are owing to the reason of each side, as otherwise weight is big, cause construction inconvenient, perhaps the price height, cause the cost height, be exactly because of intensity difference, can't bear the effect of complicated pressure, shearing etc., can not well come into operation.Develop a kind of precast hollow pipe component of cast-in-place reinforced concrete filling of novel economy for this reason, just become a current building trade problem demanding prompt solution.In the prior art, utility model patent 200420010358.4 disclosed a kind of prefabricated thin-wall pipes contain regular polygon body and two ends end socket, locate easily during use, and are stressed even, easy to use.Some deficiencies of its existence are, body interior shape and outside are similarly regular polygon, and inner surface has corner angle, the bad demoulding, the production difficulty is bigger during manufacturing, and production efficiency is low, and cost is higher, there are corner angle in inner surface, is easy to generate stress during use and concentrates, and reduces the pipe fitting supporting capacity.

Three, utility model content:

Technical problem to be solved in the utility model: for enhancing productivity, simplify production technology, improve prior art light-wall pipe force-bearing situation, design a kind of durable durable precast hollow pipe.

The technical scheme that the utility model adopted:

A kind of precast hollow pipe contains body and end socket, and the nested hollow section body of packing into of two end sockets in two ends is formed a closed inner chamber with hollow section, and hollow section is that the cross sectional shape inner surface is circle, and external surface is the prism tubular structure of regular polygon.

Described precast hollow Guan Weizheng hexagonal prism, or be positive pentagonal prism body, or be positive eight prisms.

Described end socket is a short cylinder, and its diameter and hollow section inner diameter are complementary.

The positive beneficial effect of the utility model:

1, the utility model precast hollow inside pipe wall is circular, and production technology is simple, and the processing and manufacturing ratio is easier to, and has reduced cost of production, effectively raises production efficiency.

2,, make the inboard junction of each crest line of hollow section outer wall also to be that hollow section load-bearing stress point place tube wall is thicker because the precast hollow inside pipe wall is circular, can bear bigger pressure, thereby have higher intensity, and in using transportation, being not easy to damage, product quality is higher.

Four, description of drawings:

Fig. 1: positive hexagonal prism precast hollow pipe vertical profile structural representation

Fig. 2: the positive cross-sectional structural representation of hexagonal prism precast hollow pipe

Fig. 3: positive pentagonal prism body precast hollow pipe vertical profile structural representation

Fig. 4: the positive cross-sectional structural representation of pentagonal prism body precast hollow pipe

Fig. 5: positive eight prism precast hollow pipe vertical profile structural representations

Fig. 6: the cross-sectional structural representation of positive eight prism precast hollow pipes

Fig. 7: precast hollow channel closure vertical view

Fig. 8: the precast hollow channel closure partly cuts open structural representation

Five, the specific embodiment:

Embodiment one: referring to Fig. 1, Fig. 2, Fig. 7, Fig. 8, the precast hollow pipe contains body 1, be provided with end socket 3 at body 1 two ends, hollow section is that inner surface is that circle, external surface are orthohexagonal column construction body, end socket 3 corresponds to short cylinder, its diameter and hollow section internal diameter are complementary, and two end sockets in two ends, the 3 nested hollow section bodys 1 of packing into are formed a closed inner chamber 2 with hollow section.

Embodiment two: referring to Fig. 3, Fig. 4, number in the figure is identical with embodiment one, represents meaning identical, does not repeat.Present embodiment and embodiment one difference be, precast hollow Guan Weizheng pentagonal prism body, hollow section cross sectional shape are inboard for circular, and the outside is the loop configuration of regular pentagon.

Embodiment three: referring to Fig. 5, Fig. 6, number in the figure is identical with embodiment one, represents meaning identical, does not repeat.Present embodiment and embodiment one difference be, precast hollow Guan Weizheng eight prisms, hollow section cross sectional shape are inboard for circular, and the outside is the loop configuration of octagon.

Claims

1. precast hollow pipe, contain body and end socket, the nested hollow section body of packing into of two end sockets in two ends is formed a closed inner chamber with hollow section, it is characterized in that: hollow section is that the cross sectional shape inner surface is circle, and external surface is the prism tubular structure of regular polygon.

2. precast hollow pipe according to claim 1 is characterized in that: hollow section is positive hexagonal prism, or is positive pentagonal prism body, or is positive eight prisms.

3. precast hollow pipe according to claim 1 and 2 is characterized in that: described end socket is a short cylinder, and its diameter and hollow section inner diameter are complementary.