CN207983643U - Concrete prefabricated element pressing shaping device - Google Patents

Abstract

The utility model discloses a pressure molding device for concrete prefabricated components, which comprises a concrete mold with openings at both ends, a sealing mechanism installed on one end of the concrete mold, a pressure plate installed on the other end of the concrete mold, and the The pressurizing mechanism connected with the pressurizing plate is used to apply a certain pressure to the concrete poured into the concrete mold, and release the pressure after the final setting of the concrete reaches a certain strength. The utility model can increase the compactness of concrete, reduce internal pores, and improve the bearing capacity and durability of concrete components.

Description

Concrete prefabricated component pressure forming device

technical field

The utility model belongs to the technical field of construction in the construction field, and in particular relates to a pressure forming device for a concrete prefabricated component, which can be applied to the pressure forming of the concrete prefabricated component.

Background technique

At present, the concrete structure in my country's construction industry mainly adopts the construction method of on-site pouring. This construction method requires procedures such as erecting scaffolding, supporting formwork, and binding steel bars. However, the on-site construction environment is poor, the construction quality is difficult to control, and a large amount of labor is required. In order to improve the engineering quality of the building, improve the construction efficiency, reduce the engineering cost, and reduce the energy consumption of the engineering, the application of precast concrete technology is more and more extensive. At the same time, with the continuous development of economy and technology, the requirements for height and span of modern buildings are constantly increasing, and the requirements for the strength of concrete materials are also continuously increasing.

Utility model content

The purpose of this utility model is to provide a pressure forming device for concrete prefabricated components. After the concrete is poured, a certain pressure is applied to the concrete components, and the pressure is maintained to maintain the concrete until it finally sets and reaches a certain strength. After the pressure is released, the maintenance is continued. Concrete to the design strength to increase the compactness of the concrete, reduce the internal porosity, enhance the compressive strength and durability.

The technical scheme that the utility model solves its technical problem adopts is:

A pressure molding device for concrete prefabricated components, comprising a concrete mold with openings at both ends, a sealing mechanism installed on one end of the concrete mold, a pressure plate installed on the other end of the concrete mold, and connected to the pressure plate The pressurizing mechanism is used to apply a certain pressure to the concrete poured into the concrete mold, and release the pressure after the final setting of the concrete reaches a certain strength.

According to the above technical solution, the pressure plate is slidably arranged in the other end of the concrete mold, a certain gap is provided between the pressure plate and the inner wall of the concrete mold, and the pressure mechanism includes a Connected jacks that pressurize the concrete in the concrete mold by applying mechanical pressure to the pressurized plates.

According to the above technical solution, the pressurizing mechanism further includes a base, uprights installed on both sides of the base, and a crossbeam installed between the two uprights, and the jack is installed on the crossbeam.

According to the above technical solution, the pressure plate is sealed and mounted on the other end of the concrete mold, and a pressure hole is opened on the pressure plate, and a gap is formed between the pressure plate and the concrete surface in the concrete mold. The sealing cavity, the pressurizing mechanism is connected with the pressurizing hole, and injects fluid into the sealing cavity through the pressurizing hole to pressurize the concrete in the concrete mold.

According to the above technical solution, the device also includes several support columns, and the pressure plate and the sealing mechanism are respectively installed at both ends of the support columns.

According to the above technical solution, the concrete mold is a split mold structure.

According to the above technical solution, the cross-sectional shape of the concrete mold is circular, regular polygonal, rectangular or T-shaped.

According to the above technical proposal, the concrete is plain concrete, reinforced concrete or fiber concrete.

The utility model has the following beneficial effects: the utility model pressurizes the freshly poured concrete by setting a pressurizing mechanism, which can improve the compactness of the concrete prefabricated components, reduce the internal pores, enhance the strength of the concrete, and greatly increase the strength of the concrete. power level. The utility model can prefabricate the concrete component in the factory, the quality is easy to control, and the production efficiency is high.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the structural representation of the utility model first embodiment;

Fig. 2 is the structural representation of the second embodiment of the utility model;

FIG. 3 is a top view of FIG. 2 .

In the figure: 2-concrete mold; 3-jack; 4-sealing mechanism; 5-pressure plate; 5.1-pressure hole; 6-concrete; 7-base; ; 11 - support column.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in Fig. 1-Fig. 2, a kind of concrete prefabricated member pressure forming device, comprises the concrete mold 2 that both ends are open, the sealing mechanism 4 that is installed on one end of concrete mold 2, the pressure that is installed on the other end of concrete mold 2 The plate 5 and the pressurizing mechanism (jack 3) connected with the pressurizing plate 5 are used to apply a certain pressure to the concrete 6 poured into the concrete mold 2, and release the pressure after the final setting of the concrete reaches a certain strength.

In the first embodiment of the present utility model, as shown in Figure 1, the pressure plate 5 is slidingly arranged in the other end of the concrete mold 2, a certain gap is provided between the pressure plate and the inner wall of the concrete mold, and the pressure mechanism includes The jack 3 connected to the pressure plate 5, the jack 3 pressurizes the concrete in the concrete mold by applying mechanical pressure to the pressure plate 5, and the gas in the concrete escapes from the gap between the pressure plate and the concrete mold. In the first embodiment, the pressing mechanism further includes a base 7 , uprights 8 installed on both sides of the base, and a beam 9 installed between the two uprights, and the jack 3 is installed on the beam 9 .

In the second embodiment of the utility model, as shown in Fig. 2 and Fig. 3, the pressure plate 5 is sealed and installed on the other end of the concrete mold, and the pressure plate 5 is provided with a pressure hole 5.1, and the pressure plate is located at the A sealed cavity 10 is formed between the concrete surfaces in the concrete mold. The pressurizing mechanism is connected to the pressurized hole, and fluid is injected into the sealed cavity through the pressurized hole to pressurize the concrete in the concrete mold. The fluid can be gas or liquid. In the second embodiment, the device further includes several supporting columns 11 , and the pressurizing plate 5 and the sealing mechanism 4 are respectively installed at both ends of the supporting columns 11 .

In the utility model, the pressurizing mechanism can be in the forms of mechanical pressurization, hydraulic pressurization, air pressure pressurization and the like. As shown in Figure 1, the pressurization mechanism in the first embodiment adopts mechanical pressurization; as shown in Figure 2, the pressurization mechanism in the second embodiment adopts hydraulic pressurization or pneumatic pressurization.

In a preferred embodiment of the present invention, the concrete mold is a split mold structure, and the two split molds are detachably connected to facilitate taking out the concrete prefabricated component after forming.

In a preferred embodiment of the present invention, the cross-sectional shape of the concrete mold is circular, regular polygon, rectangular or T-shaped, and the cross-sectional shape and size of the concrete mold are determined according to the shape and size of the prefabricated component produced.

In a preferred embodiment of the present invention, the concrete is plain concrete, reinforced concrete or fiber concrete, and the like.

The utility model also provides a pressure forming method for concrete prefabricated components, which includes the following steps:

S1. Make corresponding concrete molds according to the size of concrete prefabricated components;

S2, pouring the uniformly stirred concrete into the concrete mold;

S3. Start the pressurizing mechanism to apply a certain intensity of pressure to the concrete in the concrete mold through the pressurizing plate, maintain the pressure to maintain the concrete until the final setting and reach a certain strength, and then remove the pressurizing mechanism;

S4. Continue to maintain the prefabricated concrete component to the design strength, that is, to obtain the prefabricated concrete component formed under pressure.

Adopt the utility model to carry out three kinds of tests that the compressive strength is respectively 10MPa, 30Mpa, 50Mpa to the C50 strength grade concrete, and set up the reference group test, compared with the reference group test, the concrete prefabricated component strength that the utility model prepares has obvious improvement. The test results are shown in Table 1.

Table 1

It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should belong to the protection scope of the appended claims of the present utility model.

Claims (8)

1. a kind of concrete prefabricated element pressing shaping device, which is characterized in that concrete mold, sealing including both ends open Sealing mechanism mounted on described concrete mold one end, the pressure plate mounted on the concrete mold other end and with institute The pressing mechanism of pressure plate connection is stated, the pressing mechanism is used to apply centainly to the concrete poured in concrete mold Pressure, and the release after concrete final set reaches some strength.

2. concrete prefabricated element pressing shaping device according to claim 1, which is characterized in that the pressure plate sliding It is set in the concrete mold other end, certain interval, institute is equipped between the pressure plate and the inner wall of concrete mold It includes the jack being connect with the pressure plate to state pressing mechanism, and the jack to pressure plate by applying mechanical pressure It pressurizes to the concrete in concrete mold.

3. concrete prefabricated element pressing shaping device according to claim 2, which is characterized in that the pressing mechanism is also Upright bar including pedestal, mounted on the pedestal both sides and the crossbeam between two upright bars, the jack installation On the crossbeam.

4. concrete prefabricated element pressing shaping device according to claim 1, which is characterized in that the pressure plate sealing Mounted on the other end of the concrete mold, offered on the pressure plate pressurization hole, the pressure plate be located at concrete A seal chamber is formed between concrete surface in mold, the pressing mechanism is connect with the pressurization hole, and passes through hole of pressurizeing Fluid is injected into seal chamber and then is pressurizeed to the concrete in concrete mold.

5. concrete prefabricated element pressing shaping device according to claim 4, which is characterized in that if the device further includes Dry support column, the pressure plate and sealing mechanism are separately mounted to the both ends of support column.

6. concrete prefabricated element pressing shaping device according to claim 1, which is characterized in that the concrete mold To divide mode structure.

7. concrete prefabricated element pressing shaping device according to claim 1, which is characterized in that the concrete mold Cross sectional shape be circle, regular polygon, rectangle or T shapes.

8. concrete prefabricated element pressing shaping device according to claim 1, which is characterized in that the concrete is element Concrete, armored concrete or fiber concrete.