CN213971765U

CN213971765U - Inflatable core mould

Info

Publication number: CN213971765U
Application number: CN202022808658.9U
Authority: CN
Inventors: 潘诚文; 邓忠振; 李平安; 余锦峰; 王佩佩
Original assignee: Hubei Construction Infrastructure Co ltd
Current assignee: Hubei Construction Infrastructure Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-17
Anticipated expiration: 2030-11-27

Abstract

The utility model belongs to the technical field of highway and/or bridge engineering facilities, and relates to an inflatable core mould, which is a hollow core mould body formed by a core mould wall; the core mold wall comprises a PVC hard plastic plate, an outer layer fiber cloth, an inner layer fiber cloth, an outer layer vulcanized rubber and an inner layer vulcanized rubber; the PVC hard plastic board is arranged between the outer layer fiber cloth and the inner layer fiber cloth; the outer wall of the outer layer fiber cloth is provided with an outer layer vulcanized rubber; the inner wall of the inner layer fiber cloth is provided with an inner layer vulcanized rubber. The utility model provides an aerify mandrel that rigidity is high, dead weight is adjustable and be convenient for form removal and transportation.

Description

Inflatable core mould

Technical Field

The utility model belongs to the technical field of highway and/or bridge engineering facility, a aerify mandrel is related to.

Background

The traditional inflatable core mould on the market at present is forbidden to be used, and the main reasons are that the inflatable core mould is light in weight, the core mould is easy to float in the concrete pouring process, and in addition, the core mould is high in positioning difficulty due to the fact that the rigidity of the core mould body material is not enough, and the thickness of webs on two sides of a beam slab can easily meet the design requirements. The recommended substitute products are mainly steel, PVC, high-density foam and the like. For small-span hollow plate beams and small box beams, because the beam body structure is small, the space in the beam is small, and the problem of form removal is still difficult to solve by adopting steel templates and PVC templates at present. The high-density foam as the core mold is light in weight and can not be detached, but the foam core mold also has the problem of easy floating, and when the foam core mold is used for one time, the foam core mold is difficult to popularize in a large area due to large volume and high transportation and storage cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the background art, the utility model provides an aerify mandrel that rigidity is high, dead weight is adjustable and be convenient for form removal and transportation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an inflatable core mold, characterized in that: the inflatable core mould is a hollow core mould body formed by a core mould wall; the core mold wall comprises a PVC hard plastic plate, outer layer fiber cloth, inner layer fiber cloth and outer layer vulcanized rubber; the PVC hard plastic board is arranged between the outer layer fiber cloth and the inner layer fiber cloth; and the outer wall of the outer layer fiber cloth is provided with an outer layer vulcanized rubber.

Preferably, the core mold wall adopted by the utility model also comprises an inner layer vulcanized rubber arranged on the inner wall of the inner layer fiber cloth.

Preferably, the outer vulcanized rubber adopted by the utility model is attached to the outer wall of the outer fiber cloth in a hot-press vulcanization mode; the inner vulcanized rubber layer is attached to the inner wall of the inner fiber cloth in a hot-pressing vulcanization mode.

Preferably, the PVC hard plastic plates adopted by the utility model are multiple; the plurality of the inner layer fiber cloth is uniformly distributed between the outer layer fiber cloth and the inner layer fiber cloth.

Preferably, the two adjacent PVC hard plastic plates are in non-contact.

Preferably, the utility model discloses a be provided with on the mandrel body and be used for aerifing and carminative pneumatic valve inside the mandrel body.

Preferably, the air valve adopted by the utility model is arranged at the upper position of the middle part of the core mould body.

Preferably, the utility model discloses a be provided with the water valve that is used for carrying out water injection and drainage to the mandrel body is inside on the mandrel body that adopts.

Preferably, the water valve is arranged at the lower position of the middle part of the core mould body.

The utility model has the advantages that:

the utility model provides an aerify mandrel comprises five layers of structures, including the board is moulded to double-layered one deck PVC hard in the middle of the two layers high-strength fiber cloth, the inside and outside rubber hot pressing vulcanization one shot forming technology preparation that adopts of high-strength fiber cloth. Wherein the board is moulded to PVC hard plays effective supporting role to template self rigidity, can cut into the fritter according to the size of mandrel, so that the utility model provides an aerify the mandrel and tear open fold and transportation easily after exhausting. When the high-strength fiber core is manufactured, a cut small PVC hard plastic plate is sewn between two layers of high-strength fiber cloth, the fiber cloth is manufactured into a core mold shape, a rubber hot-pressing vulcanization one-step forming process is adopted, vulcanized rubber is coated on the inner surface and the outer surface of the core mold, the surface of the core mold is smooth and seamless, and the core mold can bear enough concrete heat and pressure. And after the core mold is manufactured and molded, two sets of valves are arranged at the end heads. One set is an air valve positioned above and used for inflating and exhausting air; the core mould can be inflated for shaping before concrete pouring, and the positioning and shaping of the core mould are completed. And after the beam slab concrete is poured and formed, the core die is disassembled by exhausting through the air valve. The other set is a water valve positioned below and used for injecting water and draining water, a certain amount of water is injected into the core mould before concrete is poured, the self weight of the core mould is increased, and the core mould is prevented from floating upwards. After the beam slab concrete is poured and molded, water injected into the core mold is drained through a water valve, so that the weight of the core mold during removal is reduced, and the core mold is convenient to remove.

Drawings

Fig. 1 is a schematic structural view of an inflatable core mold provided by the present invention;

fig. 2 is a schematic side view of the inflatable core mold according to the present invention;

fig. 3 is an enlarged schematic view of a part of the structure of the inflatable core mold provided by the present invention;

wherein:

1-outer layer vulcanized rubber; 2-outer layer fiber cloth; 3-PVC hard plastic board; 4-inner layer fiber cloth; 5-inner layer vulcanized rubber; 6-an air valve; 7-water valve.

Detailed Description

Referring to fig. 1 and 3, the present invention provides an inflatable core mold, which is a hollow core mold body formed by a core mold wall; the core mold wall comprises a PVC hard plastic plate 3, an outer layer fiber cloth 2, an inner layer fiber cloth 4 and an outer layer vulcanized rubber 1; the PVC hard plastic board 3 is arranged between the outer layer fiber cloth 2 and the inner layer fiber cloth 4; the outer wall of the outer layer fiber cloth 2 is provided with an outer layer vulcanized rubber 1. The core mould wall also comprises an inner layer vulcanized rubber 5 which is arranged on the inner wall of the inner layer fiber cloth 4. The outer vulcanized rubber 1 is attached to the outer wall of the outer fiber cloth 2 in a hot-press vulcanization mode; the inner vulcanized rubber 5 is adhered to the inner wall of the inner fiber cloth 4 by hot-press vulcanization.

The PVC hard plastic plate 3 is a plurality of blocks; the plurality of blocks are uniformly distributed between the outer layer fiber cloth 2 and the inner layer fiber cloth 4, and the two adjacent PVC hard plastic plates 3 are not contacted.

Referring to fig. 1 and 2, the core mold body of the present invention is provided with an air valve 6 for inflating and exhausting air to the inside of the core mold body, and the air valve 6 is disposed at the middle of the core mold body close to the upper position. The core mould body is provided with a water valve 7 for injecting water and draining water into the core mould body, and the water valve 7 is arranged at the lower position of the middle part of the core mould body.

The utility model provides an aerify mandrel comprises five layers of structures, press from both sides the one deck PVC material that excels in including two layers of high strength fiber cloth middle, the inside and outside rubber hot pressing vulcanization one shot forming technology preparation that adopts of high strength fiber cloth. Wherein the board is moulded to PVC hard plays effective supporting role to template self rigidity, can cut into the fritter according to the size of mandrel, so that the utility model provides an aerify the mandrel and tear open fold and transportation easily after exhausting. When the high-strength fiber core is manufactured, a cut small PVC hard plastic plate is sewn between two layers of high-strength fiber cloth, the fiber cloth is manufactured into a core mold shape, a rubber hot-pressing vulcanization one-step forming process is adopted, vulcanized rubber is coated on the inner surface and the outer surface of the core mold, the surface of the core mold is smooth and seamless, and the core mold can bear enough concrete heat and pressure. And after the core mold is manufactured and molded, two sets of valves are arranged at the end heads. One set is an air valve positioned above and used for inflating and exhausting air; the core mould can be inflated for shaping before concrete pouring, and the positioning and shaping of the core mould are completed. And after the beam slab concrete is poured and formed, the core die is disassembled by exhausting through the air valve. The other set is a water valve positioned below and used for injecting water and draining water, a certain amount of water is injected into the core mould before concrete is poured, the self weight of the core mould is increased, and the core mould is prevented from floating upwards. After the beam slab concrete is poured and molded, water injected into the core mold is drained through a water valve, so that the weight of the core mold during removal is reduced, and the core mold is convenient to remove.

The utility model provides an aerify the mandrel when specifically using, hollow core plate or little case breast web reinforcement and through the inspection qualified back, the bottom plate concrete is pour to installation side form, installs rapidly the utility model provides an aerify the mandrel, aerify through the pneumatic valve and make the basic shaping of mandrel after, from the water valve toward the mandrel in water, the volume of draining should be suitable on in order to overcome the mandrel come-up, the water yield should rationally match with tolerance, can not make the mandrel internal pressure too big because of the water yield is too much. And (4) mounting a web steel bar protective layer cushion block, and after mounting the top plate steel bars and the protective layer cushion block, symmetrically pouring web concrete and pouring top plate concrete. When the cushion block of the steel bar protection layer is installed, the cushion block is supported at the position of the PVC hard plastic plate corresponding to the core mold so as to ensure that the thickness of the protection layer on the inner wall of the beam plate is effectively controlled. When the strength of the concrete reaches a certain strength and meets the dismantling condition, the water valve is opened firstly to empty the water originally injected into the core mould, and then the air valve is opened to exhaust the air in the hollow mould, so that the core mould is separated from the inner wall of the concrete of the hollow slab or the small box girder and is pulled out integrally. Cleaning the surface for later use.

The attention items of the utility model are:

1. when in use, the release agent is needed to be brushed so as to reduce the resistance of drawing the die and facilitate the demoulding. The utility model provides an aerify the mandrel and do not allow to replace the separant with machine oil, the proportion of available soap powder and water is about 1: 20 bar of soapy water as a release agent.

2. Because the inside and the outside of the inflatable core mould are rubber products, the inflatable core mould can not be punctured by sharp objects to prevent water leakage and air leakage. When the hollow slab or the small box girder steel bar is bound, the binding head can not be exposed. The electric welding operation should be kept away the utility model provides an aerify the mandrel.

Claims

1. An inflatable core mold, characterized in that: the inflatable core mould is a hollow core mould body formed by a core mould wall; the core mould wall comprises a PVC hard plastic plate (3), an outer layer fiber cloth (2), an inner layer fiber cloth (4) and an outer layer vulcanized rubber (1); the PVC hard plastic board (3) is arranged between the outer layer fiber cloth (2) and the inner layer fiber cloth (4); the outer vulcanized rubber (1) is arranged on the outer wall of the outer fiber cloth (2).

2. The inflated mandrel of claim 1, wherein: the core mould wall also comprises an inner layer vulcanized rubber (5) arranged on the inner wall of the inner layer fiber cloth (4).

3. The inflated mandrel of claim 2, wherein: the outer layer vulcanized rubber (1) is attached to the outer wall of the outer layer fiber cloth (2) in a hot-pressing vulcanization mode; the inner vulcanized rubber (5) is attached to the inner wall of the inner fiber cloth (4) in a hot-pressing vulcanization mode.

4. An inflated core mould as claimed in claim 1, 2 or 3 wherein: the PVC hard plastic plate (3) is provided with a plurality of blocks; the plurality of the fiber cloth pieces are uniformly distributed between the outer layer fiber cloth (2) and the inner layer fiber cloth (4).

5. The inflated mandrel of claim 4, wherein: the two adjacent PVC hard plastic plates (3) are not contacted.

6. The inflated mandrel of claim 5, wherein: and the core mould body is provided with an air valve (6) for inflating and exhausting air into the core mould body.

7. The inflated mandrel of claim 6, wherein: the air valve (6) is arranged at the upper position of the middle part of the core mould body.

8. The inflated mandrel of claim 7, wherein: and a water valve (7) for injecting and discharging water into the core mold body is arranged on the core mold body.

9. The inflated mandrel of claim 8, wherein: the water valve (7) is arranged at the lower position of the middle part of the core mould body.