CN107116670B - A kind of prefabricated components window opening assembling die - Google Patents

Abstract

The invention belongs to the technical field of building products, and in particular relates to a window hole combination mold for prefabricated components. The invention comprises a mold body, the outer wall of the mold body constitutes the mold cavity surface; a vertical sectional plane is made on two straight sides parallel to each other of the mold body, and a vertical sectional plane is made on the other two straight sides parallel to each other along the vertical direction. Two straight-side cut-off surfaces divide the mold body into four sets of corner terminal molds and two sets of straight-side sub-moulds; In the projection in the vertical direction, the projection line formed by the vertical sectional plane is parallel to the direction pointed by the tip of one of the truncated corner terminal dies. The invention has the advantages of simple form removal, convenient and quick operation and low production cost. It can not only effectively avoid the concrete damage phenomenon at the inner corner of the window opening, reduce or even eliminate the repair cost in the later period, but also realize the backwater slope and dripping at the window opening. One-time molding effect of the sink.

Description

A combination mold for window openings for prefabricated components

technical field

The invention belongs to the technical field of building products, and in particular relates to a window hole combination mold for prefabricated components.

Background technique

In recent years, with the development of the economy, the construction industry has paid more and more attention to energy consumption and environmental pollution. The construction of traditional reinforced concrete structures in the field of construction often adopts on-site wet work. This construction method not only consumes a lot of wood as the bottom formwork and supporting materials, but also consumes a lot of energy, low construction efficiency, and long construction time. Noise and dust are produced, and at the same time, there is great pollution to the surrounding environment. Therefore, in recent years, the construction field has begun to introduce the concept of modular houses. Modular houses are different from traditional house construction. Usually, many structures of modular houses, such as prefabricated beams, prefabricated walls, and prefabricated stairs used in house construction, will be processed on the factory production line in advance. When in use, the above-mentioned prefabricated components are directly transported to the construction site, assembled and cast on site, and finally connected into buildings. Modular houses have the characteristics of environmental protection, reducing the pollution of on-site construction, and high construction efficiency. The construction of houses can be completed in a short period of time. It is one of the preferred methods of modern house construction.

Among the aforementioned prefabricated components, the prefabricated wall with window openings is recognized as a relatively complicated component. At present, the traditional window hole molds are all integrated molds that directly correspond to the shape of the window hole to be formed. For example, when the window hole is a cuboid, the window hole mold as a whole has a "mouth" frame-like structure, and so on. The problem with the above-mentioned window hole mold is that when the window hole mold is put into the mold cavity of the wall panel mold, the laying of the reinforcement skeleton and the cement pouring are all carried out in the space between the window hole mold and the wall panel mold. When the cement hardening is completed and the window hole mold needs to be disassembled, the window hole mold must be pulled out along the vertical direction by a vertical hoist. Since the appearance of the window opening usually has a large number of corners (also known as internal corners), the corners of the window opening will be damaged due to the pulling and stress concentration of the window opening mold and cement during vertical lifting, which will eventually cause defects in the appearance of the prefabricated wall. Once the above-mentioned appearance defects occur, they can only be repaired through the post-repair process, which virtually increases the production cost of the prefabricated wall. In addition, the current window hole is not just a simple smooth hole. Taking a rectangular window hole as an example, a groove-shaped drip groove needs to be arranged on the upper edge, and a right-angled water return slope with an inclined surface needs to be arranged on the lower edge. Obviously, if the overall hoisting process is adopted, the vertical hoisting direction of the window hole mold just interferes with the arrangement of the return slope and the drip tank, which is the main reason why most prefabricated building components cannot realize the above structure.

Contents of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a reasonable and practical window opening combination mold for prefabricated components. Concrete damage at the inner corner reduces or even eliminates the cost of later repairs. At the same time, it can also realize the one-time forming effect of the return slope and drip groove at the window opening.

To achieve the above object, the present invention adopts the following technical solutions:

A combined window hole mold for prefabricated components, including a square frame-shaped mold body, the outer wall of the mold body constitutes the cavity surface; On the other two straight sides that are parallel to each other, two straight-side cut-off surfaces are made along the vertical direction, so that the mold body is divided into four sets of corner terminal molds and two sets of straight-side sub-moulds; the shape of the corner terminal molds is "L" "The four corner ends of the mold body are constituted by the shape of "". On the projection in the vertical direction, the projection line formed by the vertical sectional surface is parallel to the direction pointed by the tip of one of the truncated corner terminal molds.

Preferably, the shape of the straight-side sub-mould is an isosceles trapezoidal plate-like structure so as to form the long side of the mold body, and the two straight sides of the mold body where the vertical section is located constitute the wide side of the mold body; the two straight-side sub-moulds The trapezoidal hypotenuse coincides with the above-mentioned straight-side sectional surfaces one by one, and the trapezoidal base of the straight-side sub-mould is located on the side of the mold body facing the operator.

Preferably, the angle formed between the vertical sectional surface and the broad side of the mold body is 80°.

Preferably, both the straight-side sub-mold and the corner terminal die are box-shaped structures with the box mouth facing inward; The bolts at the walls of each sub-mould box are fixed to each other.

Preferably, the mold body also includes an auxiliary draft assembly for pulling out the straight-side sub-form in the vertical direction; the auxiliary draft assembly includes a draft screw, and the trapezoidal top edge of the straight-side sub-form is located The box wall is provided with an inverted "U"-shaped slot plate, and the slot bottom of the slot plate is provided with a threaded hole. The draft screw and the threaded hole form a thread fit, and the trapezoidal top edge of the straight-sided sub-die is located on the box wall. A reserved hole is reserved for the top of the draft screw to pass through.

Preferably, the side of the straight-side sub-form and the corner terminal form towards the operator are provided with hooks for easy lifting.

The beneficial effects of the present invention are:

1) The present invention abandons the traditional one-piece window hole mold, and instead adopts a combined mold structure. By cutting the window hole mold on a vertical plane, each sub-mould structure is obtained. When needed, the required window hole moulds can be easily assembled by combining the sub-moulds. More importantly, for the upper and lower edges of parallel window openings that need to be arranged with return slopes and drip grooves, they are only cut off once by the vertical section. In other words, each time the formwork is removed, the return slope and drip groove The mold cavity is always disassembled horizontally at the end to ensure the molding quality of the water return slope and drip groove. For the left side wall and the right side wall of the window hole without drip tank and water return slope, it is cut off twice or more by the straight edge cut surface. When needed, remove the straight-side sub-mold along the vertical direction first, so as to leave a movable space for the corner terminal die along the horizontal direction; and then carry out the horizontal sliding action of one of the corner terminal dies along the vertical sectional surface , and then pull the corner terminal die horizontally away from the female corner. Due to the above operations, it is possible to effectively avoid concrete damage at the inner corner of the window opening, and reduce or even eliminate the cost of later repairs. Simultaneously, because the pull-out action of the above-mentioned corner terminal mold is parallel to the convex direction of the water return slope and the drip groove, it can also realize the one-time forming effect of the water return slope and the drip groove at the window opening.

2), as a further preferred solution of the above scheme, the mold body of the present invention is actually a rectangular frame structure with the edge of the drip groove and the water return slope as the wide side and the left side wall and the right side wall as the long sides. It is also the traditional shape of the window opening. By designing the straight-side sub-form into an isosceles trapezoidal structure, when removing the formwork, the straight-side sub-form can be directly pulled out vertically upwards. The isosceles trapezoidal structure of the straight-side sub-formwork and the structural feature of the trapezoidal bottom facing upwards of the straight-side sub-formwork can effectively improve the efficiency and convenience of the entire formwork removal operation. Preferably, the angle formed by the vertical sectional surface and the wide side of the mold body is 80°. This angle can be more convenient for the stripping operation of the straight side sub-mold and the opposite corner terminal mold, and it is obviously more convenient to operate.

3) Since the outer wall of the mold body is the cavity surface, in other words, if you want to increase the rigidity of the mold body itself, to ensure that the mold body can resist the force applied during cement pouring and hardening, this is used to reinforce the mold body Components such as support plates with their own rigidity should be arranged on the inner wall of the mold body. Preferably, each sub-mold constituting the mold body is designed as a box-shaped structure. At this time, the bottom of the box constitutes a part of the above-mentioned mold cavity surface, and the box wall constitutes a mating surface for mating with each other or mating the base surface, so as to ensure the overall work. reliability.

4) Considering that the weight of the mold body is extremely heavy, even if it is split into several sub-moulds, each sub-mould still has a certain quality. In addition, when the mold is removed, the mold body will be hindered by the hardening of the cement. Therefore, the present invention specially arranges auxiliary drafting components. In actual use, first remove the matching bolts between the straight-side sub-mold and the corner terminal die, then turn the draft screw, and use the lifting force of the draft screw relative to the base surface to lift the vertical lift of the straight-side sub-mold The base surface, and finally achieve the auxiliary draft effect for the straight-edge sub-mold.

Description of drawings

Fig. 1 is the three-dimensional view of the cooperation state between the present invention and wallboard mould;

Fig. 2 is a partially enlarged view of part I of Fig. 1;

Fig. 3 is the three-dimensional structure schematic diagram of the present invention;

Fig. 4 is the front view of the present invention;

Fig. 5 is the exploded view of the structure of Fig. 4;

Figure 6 is a side view of the present invention.

The actual corresponding relationship between each label of the present invention and part name is as follows:

A-wall panel mold

a-Plumb sectional surface b-Straight edge sectional surface c-Return water slope mold d-Drip groove mold

10-corner terminal die 20-straight side die 21-reserved hole

30-bolt 41-draft screw 42-slot plate 42a-threaded hole

50-sling

Detailed ways

For ease of understanding, here in conjunction with accompanying drawing, the concrete structure of the present invention and working mode are further described as follows:

The specific structure of the present invention is shown with reference to Figures 1-6, which includes a mold body for being arranged in the mold cavity of the wallboard mold A. When in use, the mold body is the same as the wallboard mold A, and is placed horizontally on a certain mold surface, which is referred to as "base surface" here. The aforementioned “vertical direction” corresponds to the direction perpendicular to the base plane. When the mold body and the wallboard mold A were put into the base as a whole as shown in Figure 1, the space between the mold body and the wallboard mold A has just formed a "back"-shaped groove-like pouring area for cement pouring. After laying steel bars, pouring cement and even waiting for the cement to harden in the pouring area, remove the mold body and wallboard mold A to obtain a prefabricated wall with window holes.

For ease of description, a common rectangular window hole is used as an example here, and the corresponding mold body is shaped like a rectangular frame, as shown in Figure 1-6. In order to realize the quick release and the protection of the internal corners of the present invention, the wide side of the mold body is cut off once, and the long side is cut off at least twice, so as to obtain 6-8 sub-moulds. Specifically, in the structure shown in FIGS. 1-6 , the broad side is truncated once and the long side is truncated twice, thereby obtaining four sets of corner terminal molds 10 and two sets of straight-side sub-moulds 20 . Since the long side of the mold body where the straight-side sub-mould 20 is located does not need additional settings such as return slope c and drip groove d, it does not matter how many times it is cut off. Considering that it is convenient to quickly pull out the straight-side sub-mold 20 along the vertical direction, it is necessary to design the straight-side sub-mold 20 into an isosceles trapezoidal structure as shown in FIGS. 2-6 . Since the wide side of the mold body needs to form the upper edge and the lower edge of the window hole, and it is necessary to arrange the return slope and the drip groove at the upper edge and the lower edge, it is only cut off once by the vertical section a, so that the mold body can The backwater slope mold c and the drip groove mold d shown in Figure 6 are arranged at the wide side of the bucket. The included angle between the vertical sectional surface a and the above-mentioned broad side is 80° to facilitate the horizontal drafting action of the angle terminal mold 10 along the horizontal direction parallel to the base plane.

On the basis of the above structure, as shown in Figure 2-3, the present invention also arranges an auxiliary puller on the trapezoidal top edge of the straight-side sub-mold 20, that is, on one side of the mating base surface of the straight-side sub-mold 20. The mold assembly is used so that the straight side sub-mould 20 can quickly break away from the base surface when the formwork is removed. The auxiliary drafting assembly cooperates with the threaded hole 42a at the groove plate 42 through the drafting screw 41, so that force is exerted on the base surface by virtue of the action of the screw nut of the drafting screw 41. Since the base surface is constant, the base surface will produce a reaction force on the draft screw 41 at this time, which can drive the straight-sided sub-mold 20 integrated with the draft screw 41 to produce a demoulding action.

Claims (3)

1. A prefabricated component with a window hole composite mold, comprising a square frame-shaped mold body, the outer wall of the mold body constitutes the cavity surface; it is characterized in that: a vertical truncation is made on two of the straight sides parallel to each other in the mold body Surface (a) and make two straight-edge cut-off surfaces (b) along the vertical direction on the other two straight sides parallel to each other, so that the mold body is divided into four sets of corner terminal molds (10) and two sets of straight-edge dies Die (20); The shape of the angle terminal mold (10) is "L" shape so as to constitute the four corner ends of the mold body. On the projection in the vertical direction, the vertical sectional surface (a) formed The direction pointed by the tip of one of the corner terminal molds (10) cut off by the projection line parallel; The shape of the straight side sub-mold (20) is an isosceles trapezoidal plate structure so as to form the long side of the mold body, and the two straight sides of the mold body where the vertical sectional surface (a) is located constitute the wide side of the mold body; The two trapezoidal hypotenuses of (20) coincide with the above-mentioned straight side sectional surface (b) one by one, and the trapezoidal base of the straight side sub-mould (20) is positioned at the side of the mold body towards the operator; The straight side sub-molds (20) and the corner terminal dies (10) are all box-shaped structures with the box mouth facing inward; The straight side sub-moulds (20) are fixedly connected to each other by bolts (30) arranged on the walls of each sub-mould box; The mold body also includes an auxiliary draft assembly that is convenient to pull out the straight-side sub-mold (20) in the vertical direction; the auxiliary draft assembly includes a draft screw (41), and the straight-side sub-mold (20) ) is provided with an inverted "U"-shaped groove plate (42) at the box wall where the trapezoidal top edge is located, and a threaded hole (42a) is set through the groove bottom of the groove plate (42), and the draft screw (41) and the threaded hole Form thread fit between the holes (42a), and reserve the reserved hole (21) that the top end of the draft screw (41) passes on the box wall where the trapezoidal top edge of the straight side sub-die (20) is. 2. A combined window-hole mold for prefabricated components according to claim 1, characterized in that the angle formed between the vertical sectional surface (a) and the wide side of the mold body is 80°. 3. A combination mold for window openings for prefabricated components according to claim 1, characterized in that: the side of the straight-side sub-mould (20) and the corner terminal mold (10) facing the operator is equipped with an easy-to-lift Suspenders (50).