CN205314342U - Ventilative formula plastic box - Google Patents

Abstract

The utility model relates to a ventilative formula plastic box belongs to general building construction field. The aspect of this plastic box (1) is the rectangle, its long limit is less than or equal to 2 with comparing of minor face size, the plastic box includes upper assembly (2) and lower assembly (3), upper assembly (2) are by border panel (4), stiffening rib (5) and lamina tecti (6) constitute, there is one or more exhaust hole (7) on the lamina tecti, lower assembly (3) are by border panel (4), stiffening rib (5) and backing board (8) constitute, intensive bleeder vent (9) have been covered with on the backing board, along border panel in upper assembly and lower assembly, lamina tecti or backing board inner wall evenly set up the stiffening rib, upper assembly and lower assembly align from top to bottom and assemble, border panel coincide mutually. The utility model discloses a plastic box, it is all very convenient to produce, to install, to transport, and mechanical properties is good, and is also better with this kind of product formation's hollow superstructure reliability, shock resistance, crack resistance.

Description

A kind of permeability type plastic box

(1) technical field

The utility model relates to the packing material in a kind of reinforced concrete hollow floor structure, especially a kind of permeability type plastic box, belongs to buildings in general structure field.

(2) background technology

At building field, along with large-span concrete structure increases day by day, more and more floors adopts hollow floor structure technology. Replace part concrete substantially can not affect the stress performance of structure with lightweight filler, but can greatly alleviate the deadweight of structure.

In previous hollow building cover, scholar's proposition high-strength cement by representative of Qiu Zeyou, Wang Benmiao makes cement pipe and cement box as packing material, but the goods of cement class are from great. Afterwards, polyphenyl foam class material is introduced in hollow building cover by I, I successively proposed the technology such as " light foam material filling member of a kind of band reinforced hard " (ZL200420077923.9) and " foam material filling box of a kind of band enhancement Layer and slurry leakage hole " (ZL201010554837.2), and these technology are used widely in engineering.

But, for built-in packing material, no matter polyphenyl class or cement class material, all to be produced bigger buoyancy in construction. According to law of Archimedes, as long as the unit weight of packing material is less than concrete density, in the process of casting concrete, certainly lead to buoyancy. In order to overcome buoyancy, construction to be taken several steps and carries out anti-floating, except expensive, take a lot of work, time-consuming except, the damage of plate end template is also bigger, and cause packing material to float once certain road technical measures is not in place, bring very big potential safety hazard by structure.

The concept strengthening net is introduced hollow building cover packing material by Mr. Guo Wuchang the earliest, and 2011, Guo Wuchang proposed " obturator of a kind of filling concrete in situ " (ZL201120161932.6); But, that clearly proposition steel mesh solves buoyancy problem first is Wang Benmiao, and 2013, he proposed the cast-in-situ hollow building roof of hole " the netted box component of a kind of built-up type become " (CN203514592U).In the art, Mr. Wang utilizes the ventilation property of mesh greatly to reduce the buoyancy eliminating packing material even completely first, ensure that concrete can not flow in packing material by controlling the overall dimension of mesh, utilize moisture surface tension force that moisture can not be infiltrated in packing material. After, Mr. Wang proposes again the technology such as the cast-in-situ hollow building roof of hole " a kind of steel mesh be combined into organic object " (CN104005501A), the cast-in-situ hollow building roof of hole " a kind of steel mesh become with gas-filled valve combination box " (CN103967181A) successively. Above-mentioned correlation technique brings revolutionary change to whole hollow building cover industry, has formed the trend that whole industry whole updating is regenerated at present.

There is following defect in the prior art respectively, mainly contain: 1, construction process can produce bigger buoyancy; 2, the erecting to smaller with horizontal rigidity of packing material product, tramples deformation of products in the process with casting concrete personnel during construction bigger; 3, packing material volume is relatively little; 4, when packing material size relatively big (as casing lateral dimension close to 1mX1m time), bottom casing, concrete is not easy to build closely knit; 5, difficulty installed by pipeline; 6, transportation cost height.

In this case, develop and a kind of both overcome concrete placement process concrete to the buoyancy of packing material, again rigidity relatively big, can effectively ensure the box filling product that the concrete placement of packing material bottom is closely knit and facilitates pipeline construction, transportation cost low, become urgent problem in current hollow building cover.

(3) summary of the invention

In existing hollow building cover technology, there is packing material buoyancy and cause more greatly constructional difficulties, or the problems such as superstructure hollow rate is low, packing material rigidity is little, plate base concrete pouring quality cannot ensure, pipeline difficult arrangement, the purpose of this utility model is to provide a kind of permeability type plastic box.

On the basis of existing technology, for achieving the above object, the technical solution adopted in the utility model is: a kind of permeability type plastic box, the planeform of plastic box (1) is rectangle, its long limit is less than with the ratio of short limit size or equals 2, plastic box comprises assembly (2) and lower assembly (3), upper assembly (2) is by lateral frame board (4), ribbed stiffener (5) and top cover plate (6) are formed, top cover plate has one or more venting hole (7), single venting hole aperture >=0.5mm and≤8mm, lower assembly (3) is by lateral frame board (4), ribbed stiffener (5) and backing board (8) are formed, backing board has been covered with intensive breather hole (9), single breather hole aperture >=4mm and≤15mm, along lateral frame board in upper assembly and lower assembly, top cover plate or backing board inwall evenly arrange ribbed stiffener, upper assembly and lower assembly align assembled up and down, the lateral frame board that upper assembly and lower assembly correspond to each other coincide mutually. the planeform of plastic box is rectangle, in order to avoid stress concentrate, corner can chamfering, the long limit of plastic box is less than with the ratio of short limit size or equals 2 so that the installation of production is more convenient. the upper assembly being made up of lateral frame board, ribbed stiffener and top cover plate be a kind of bottom surface open wide box-structure, the rigidity of top cover plate is bigger, act on the load on top cover plate down to be transmitted by the vertical applied force structure formed by lateral frame board and ribbed stiffener, the vertical rigidity of plastic box is not easily out of shape relatively greatly, and ribbed stiffener and top cover plate become the support of lateral frame board in the horizontal direction, strengthen the horizontal rigidity of plastic box. when venting hole on top cover plate should ensure casting concrete, mortar is not easy to block hole, and air can freely be got rid of, and also to be avoided concrete slurry therefrom to bleed plastic box inside,Through experimental verification, single venting hole aperture lower value is 0.5mm, and higher limit is 8mm, and during the 2-5mm of aperture, effect is better. Being covered with intensive breather hole on backing board, breather hole, together with the venting hole on top cover plate, forms the passage of plastic box inner air circulation, it is possible to avoids plastic box inside and outside formation air pressure poor, eliminates the buoyancy of concrete placement process. Same through experimental verification, single breather hole aperture lower value is 4mm, and higher limit is 15mm, and during the 6-10mm of aperture, effect is better. The multiple mode such as can be moulded, tenon connection, gluing bonding, jig are fixing by heat ensure to align up and down between upper assembly and lower assembly assembled.

Of the present utility model it is characterised in that plastic box material includes but not limited to the plastic materials such as resol, epoxy resin, aminoresin, polyethylene, polypropylene. Plastic materials easily at working-yard cutting, fluting or brill eye, is defined as plastic materials, is to facilitate the pipeline in cored slab to install.

Of the present utility model it is characterised in that assembly (2) and lower assembly (3) profile are the curved surface to plastic box outer projection (10), a vertical mortar leakage hole (11) is had in the middle part of upper assembly, slurry leakage hole is up big and down small doline, slurry leakage hole wall (12) is connected with top cover plate (6) with ribbed stiffener (5), also there is a vertical mortar leakage hole at lower assembly (3) middle part, slurry leakage hole is up-small and down-big doline of falling, and in lower assembly, slurry leakage hole wall (12) is connected with backing board (8). The upper and lower surface of plastic box is the curved surface of outwardly convex, compared with pure rectangular cross-section plastic box, slightly losing some hollow rates, but can obtain following effect: the degree that 1, can alleviate concrete girt strip stress concentration between plastic box, concrete is not easy to crack; 2, the concrete punch resistant capability in plastic box top is improved; 3, bottom plastic box, concrete is easily built closely knit. The setting of slurry leakage hole is first also ensure concrete pouring quality bottom plastic box. According to engineering experience, leakage slurry hole size is not less than 100mm, plate base concrete just can reach builds effect preferably, arranges upper and lower funnel and can obtain following effect: the degree that 1, can alleviate floorslab concrete stress concentration around hole, and concrete is not easy to crack; 2, funnel shaped is equivalent to cap in arch without beam up and down, it is possible to improve the local punch resistant capability of following plastic box top concrete floor; 3, upper hopper squeeze effect can make concrete leakage slurry part in obtain bigger velocity of flow, enhance concrete surging force, the expanding effect of lower funnel makes concrete from hole to flowing farther around, and therefore the existence of upper and lower funnel can ensure concrete pouring quality bottom plastic box well.

Of the present utility model it is characterised in that lateral frame board (4), ribbed stiffener (5), top cover plate (6), backing board (8) and slurry leakage hole wall (12) are for build shaping plastic fittings separately, respectively above-mentioned accessory is assembled in working-yard assembly (2) and lower assembly (3) forms plastic box (1). Plastic box is assembled in working-yard after being broken into multiple accessory, although assembled efficiency is not as in factory, but the cumulative volume of accessory is less than the 20% of plastic box volume, for factory apart from the engineering of building site more than 50km, can saving freight charges about 80%, economic benefit is fairly obvious.

Of the present utility model be characterised in that between the upper assembly (2) of plastic box (1) and lower assembly (3) to have a joint or a joint above increase part (13), increase and part has ribbed stiffener (5), increasing part to align up and down with upper assembly and lower assembly, the lateral frame board that the lateral frame board (4) increasing part corresponds to each other with upper assembly and lower assembly coincide mutually.Plastic box of the present utility model usually can only with mould molding, when lower assembly or the upper size of components of plastic box is greater than >=400mm, the speed that work in-process are extracted from mould is very slow and scrap rate height, increases arranging the quantity that can greatly reduce mould and can improving production efficiency and reduce scrap rate of part.

After adopting such scheme, the utility model compared with prior art has following useful effect:

Plastic box of the present utility model arranges breather hole in bottom, top arranges venting hole, it is possible to reduces and eliminates the buoyancy in concrete placement process even completely, first solves built-in packing material in existing hollow building cover technology and produces the defect of buoyancy; Secondly also there is following effect: 1, the utility model be jointly made up of lateral frame board, ribbed stiffener and top cover plate or backing board the box-structure that opens wide a kind of bottom surface erect to level to all having bigger rigidity, plastic box is not easily out of shape; 2, it is defined as plastic materials, overcomes the shortcoming that difficulty is installed in the distortion little, easy of metal species material stiffness or cost height and pipeline; 3, increase arranging of part to improve production efficiency and reduce scrap rate; 4, multiple accessory is assembled into plastic box and can greatly reduce transportation cost; 5, slurry leakage hole setting and up and down funnel and plastic box upper and lower surface be curved surface for concrete cracking resistance, ensure pouring quality, improve local bearing capacity and have very big benefit. Compared with prior art, the utility model overcomes packing material buoyancy and causes more greatly constructional difficulties, or the problem such as superstructure hollow rate is low, product rigidity is little, transportation cost height, plate base concrete pouring quality cannot ensure, pipeline difficult arrangement. A kind of permeability type plastic box of the present utility model, produces, transport and install all very convenient, and mechanical property is good, big by the hollow building cover span of this kind of product formation, weight light, and the reliability of structure, shock resistance, splitting resistance are also better. The utility model has good economy and suitability, the development of Building technology is played a driving role.

(4) accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described further.

Fig. 1 is the vertical view of the utility model plastic box.

Fig. 2 is the A-A sectional view of the utility model plastic box vertical direction.

Fig. 3 be the utility model plastic box vertical direction B-B sectional view.

Fig. 4 is the upward view of upper assembly in plastic box.

Fig. 5 is the vertical view of lower assembly in plastic box.

Fig. 6 is the schematic diagram that lateral frame board, ribbed stiffener, top cover plate, backing board and slurry leakage hole wall accessory are assembled into plastic box.

Fig. 7 is by upper assembly, the schematic diagram of increasing part with lower parts assembling and become plastic box.

In figure: 1. plastic box, 2. going up assembly, 3. play assembly, 4. lateral frame board, 5. ribbed stiffener, 6. top cover plate, 7. venting hole, 8. backing board, 9. breather hole, 10. curved surface, 11. slurry leakage holes, 12. slurry leakage hole walls, 13. increase part.

(5) embodiment

The utility model realizes in such a way:

In Fig. 1-embodiment illustrated in fig. 5, a kind of permeability type plastic box, the planeform of plastic box (1) is rectangle, its long limit is less than with the ratio of short limit size or equals 2, plastic box comprises assembly (2) and lower assembly (3), upper assembly (2) is by lateral frame board (4), ribbed stiffener (5) and top cover plate (6) are formed, top cover plate has one or more venting hole (7), single venting hole aperture >=0.5mm and≤8mm, lower assembly (3) is by lateral frame board (4), ribbed stiffener (5) and backing board (8) are formed, backing board has been covered with intensive breather hole (9), single breather hole aperture >=4mm and≤15mm, along lateral frame board in upper assembly and lower assembly, top cover plate or backing board inwall evenly arrange ribbed stiffener, upper assembly and lower assembly align assembled up and down, the lateral frame board that upper assembly and lower assembly correspond to each other coincide mutually.

In Fig. 1-embodiment illustrated in fig. 5, plastic box material includes but not limited to the plastic materials such as resol, epoxy resin, aminoresin, polyethylene, polypropylene.

In Fig. 1-embodiment illustrated in fig. 5, upper assembly (2) and lower assembly (3) profile are the curved surface to plastic box outer projection (10), a vertical mortar leakage hole (11) is had in the middle part of upper assembly, slurry leakage hole is up big and down small doline, slurry leakage hole wall (12) is connected with top cover plate (6) with ribbed stiffener (5), also there is a vertical mortar leakage hole at lower assembly (3) middle part, slurry leakage hole is up-small and down-big doline of falling, and in lower assembly, slurry leakage hole wall (12) is connected with backing board (8).

In the embodiment shown in fig. 6, above-mentioned accessory, for build shaping plastic fittings separately, is assembled into assembly (2) and lower assembly (3) formation plastic box (1) respectively by lateral frame board (4), ribbed stiffener (5), top cover plate (6), backing board (8) and slurry leakage hole wall (12) in working-yard.

In the embodiment shown in fig. 7, what have more than a joint or a joint between the upper assembly (2) of plastic box (1) and lower assembly (3) increases part (13), increase and part has ribbed stiffener (5), increasing part to align up and down with upper assembly and lower assembly, the lateral frame board that the lateral frame board (4) increasing part corresponds to each other with upper assembly and lower assembly coincide mutually.

Claims (5)

1. a permeability type plastic box, the planeform of plastic box (1) is rectangle, its long limit is less than with the ratio of short limit size or equals 2, plastic box comprises assembly (2) and lower assembly (3), it is characterized in that upper assembly (2) is by lateral frame board (4), ribbed stiffener (5) and top cover plate (6) are formed, top cover plate has one or more venting hole (7), single venting hole aperture >=0.5mm and≤8mm, lower assembly (3) is by lateral frame board (4), ribbed stiffener (5) and backing board (8) are formed, backing board has been covered with intensive breather hole (9), single breather hole aperture >=4mm and≤15mm, along lateral frame board in upper assembly and lower assembly, top cover plate or backing board inwall evenly arrange ribbed stiffener, upper assembly and lower assembly align assembled up and down, the lateral frame board that upper assembly and lower assembly correspond to each other coincide mutually.

2. a kind of permeability type plastic box according to claim 1, it is characterised in that plastic box material includes but not limited to the plastic materials such as resol, epoxy resin, aminoresin, polyethylene, polypropylene.

3. a kind of permeability type plastic box according to claim 1, it is characterized in that upper assembly (2) and lower assembly (3) profile are the curved surface to plastic box outer projection (10), a vertical mortar leakage hole (11) is had in the middle part of upper assembly, slurry leakage hole is up big and down small doline, slurry leakage hole wall (12) is connected with top cover plate (6) with ribbed stiffener (5), also there is a vertical mortar leakage hole at lower assembly (3) middle part, slurry leakage hole is up-small and down-big doline of falling, and in lower assembly, slurry leakage hole wall (12) is connected with backing board (8).

4. a kind of permeability type plastic box according to claim 1, it is characterized in that lateral frame board (4), ribbed stiffener (5), top cover plate (6), backing board (8) and slurry leakage hole wall (12) are for build shaping plastic fittings separately, respectively above-mentioned accessory is assembled in working-yard assembly (2) and lower assembly (3) formation plastic box (1).

5. a kind of permeability type plastic box according to claim 1, it is characterized in that having between the upper assembly (2) of plastic box (1) and lower assembly (3) joint or a joint above increase part (13), increase and part has ribbed stiffener (5), increasing part to align up and down with upper assembly and lower assembly, the lateral frame board that the lateral frame board (4) increasing part corresponds to each other with upper assembly and lower assembly coincide mutually.