CN212453195U - Prefabricated wall body mould, prefabricated wall body and upper and lower floor wall body connection structure - Google Patents

Abstract

The utility model discloses a prefabricated wall body mould, which comprises a cast-in-situ cavity module, wherein the cast-in-situ cavity module comprises a main body block and wing blocks arranged on two sides of the main body block; the front surface and the rear surface of the wing block are respectively raised relative to the front surface and the rear surface of the main body block so as to form a cavity capable of containing annular reinforcing steel bars in the wing block; the upper end of the wing block is provided with an opening, an openable baffle is mounted on the opening, and when the baffle is opened, the annular section of the annular reinforcing steel bar can pass through the opening.

Description

Prefabricated wall body mould, prefabricated wall body and upper and lower floor wall body connection structure

Technical Field

The utility model relates to a prefabricated wall body technical field, especially a prefabricated wall body mould and prefabricated wall body.

Background

The interior of a prefabricated wall typically has channels and/or cavities for casting in place. The construction mode of the cast-in-place area is as follows: firstly, a rectangular mould frame is constructed by side mould templates, and then a designed core mould is arranged in the rectangular mould frame according to the shape of a required cast-in-place area. And after concrete is poured into the whole mould, filling the gap between the mould frame and the core mould, and after the concrete is solidified, removing the core mould and the mould frame to obtain the prefabricated wall body with the cavity inside.

A modular mould and prefabricated laminated wall structure for casting prefabricated laminated walls as disclosed in CN108748624A, wherein the core mould comprises mould tubes and modules connected to the bottom of the mould tubes, the modules being substantially in the shape of square boxes.

There are two main problems with this type of bottom module:

first, it is often necessary to construct exposed rib grooves for accommodating vertical steel bars on the inner side of the bottom of the prefabricated wall, and a plurality of rubber strips (as described in CN 107696249A) are required to be disposed on the surface of the module for constructing the exposed rib grooves, which increases the production cost.

Second, it is often necessary to reserve vertical reinforcement in the cavity formed by the modules, the bottom of which may be circular. And the core mould needs to be removed after the concrete in the prefabricated wall body is solidified, and the removal of the core mould can be blocked if the bottom of the reinforcing steel bar is annular.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated wall body mould and prefabricated wall body and connection structure have cancelled the special mould structure that is used for structuring the wall body inner groovy, and can be applicable to the reservation of ring reinforcement.

In order to achieve the above object, in a first aspect, the present invention provides a prefabricated wall body mold, including a cast-in-place cavity module, wherein the cast-in-place cavity module includes a main body block and wing blocks disposed at two sides of the main body block; the front surface and the rear surface of the wing block are respectively raised relative to the front surface and the rear surface of the main body block so as to form a cavity capable of containing annular reinforcing steel bars in the wing block; the upper end of the wing block is provided with an opening, an openable baffle is mounted on the opening, and when the baffle is opened, the annular section of the annular reinforcing steel bar can pass through the opening.

Furthermore, a rotating shaft is arranged on the wing block, and the baffle is in pivot connection with the rotating shaft so as to realize the opening and closing action of the baffle.

Furthermore, the cavity that can hold annular reinforcing bar is box-shaped, the pivot is located the top of a lateral wall in cavity, annular reinforcing bar is close to the lateral wall of pivot place one side or be close to with the lateral wall relative of the lateral wall of pivot place one side.

Further, the wing blocks comprise an outer wing block and an inner wing block located inside the outer wing block, wherein the height of the outer wing block is smaller than the height of the inner wing block; the openable and closable baffle is arranged on the top of the outer wing block.

Further, the outer wing block is a trapezoidal block with a narrow upper part and a wide lower part.

Furthermore, the prefabricated wall body mould also comprises a bottom edge mould, and the outer wing blocks and the bottom edge mould are of an integral structure.

The second aspect the utility model provides a prefabricated wall body is made by foretell prefabricated wall body mould, prefabricated wall body includes cast-in-place cavity, cast-in-place cavity includes the main part chamber and is located the wing chamber of main part chamber both sides, the thickness in wing chamber is greater than the thickness in main part chamber the annular reinforcing bar that has vertical arrangement in the wing chamber.

Third aspect, the utility model provides an use upper and lower floor wall connection structure of above-mentioned prefabricated wall body, the annular reinforcing bar at the prefabricated wall body top of lower floor stretches into upper prefabricated wall body bottom the wing intracavity.

Compared with the prior art, the utility model discloses a following beneficial effect has: the design of rubber strip has been cancelled, also need not construct a plurality of exposed rib grooves, constructs the wing chamber that holds the annular reinforcing bar through the wing piece, because the ring segment that the annular reinforcing bar has can play fine anchor effect, so the joint strength of wall body still can guarantee. In addition, the wing blocks are provided with the baffle plates which can be opened and closed, so that the wing blocks can be smoothly separated from the cast-in-place module without being hindered by the annular reinforcing steel bars at the bottom when the cast-in-place module is dismounted.

Drawings

Fig. 1 is a schematic structural view of a cast-in-place module in a prefabricated wall mold according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

FIG. 3 is a schematic view of the opened state of the shutter in FIG. 2;

FIG. 4 is an enlarged view of FIG. 3 at the baffle and opening;

fig. 5 is a schematic structural view of a cast-in-place module in a prefabricated wall mold according to another embodiment of the present invention;

FIG. 6 is a schematic view of the opened state of the shutter in FIG. 5;

fig. 7 is a schematic view of an overall structure of a prefabricated wall mold according to another embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of the cast-in-place module of FIG. 7;

FIG. 9 is a schematic view of another angle of the cast-in-place module of FIG. 8;

FIG. 10 is a bottom view of the structure of FIG. 7;

FIG. 11 is a schematic structural view of a prefabricated wall manufactured by using the prefabricated wall mold of FIG. 7;

FIG. 12 is a schematic structural view of the prefabricated wall body in FIG. 11 as an exterior wall;

fig. 13 is a schematic view of an upper and lower connection structure of a prefabricated wall provided by an embodiment of the present invention;

FIG. 14 is an enlarged schematic view of FIG. 13 at the junction;

fig. 15 is a schematic view of an upper and lower layer connecting structure of a prefabricated wall (exterior wall) according to an embodiment of the present invention;

FIG. 16 is an enlarged schematic view of FIG. 15 at the junction;

fig. 17 is a schematic structural view of a cast-in-place cavity module and an inflatable core module of a prefabricated wall mold according to an embodiment of the present invention;

fig. 18 is a schematic structural view of a cast-in-place cavity block and an inflatable core mold of another prefabricated wall mold according to an embodiment of the present invention;

fig. 19 is a schematic view of the configuration of the inflated core mold within the entire mold frame;

fig. 20 is a schematic structural view of another cast-in-place cavity module according to an embodiment of the present invention;

fig. 21 is a schematic structural view of a prefabricated wall according to an embodiment of the present invention;

FIG. 22 is a schematic top view of the structure of FIG. 21;

fig. 23 is a schematic structural view of another prefabricated wall according to the embodiment of the present invention;

FIG. 24 is a schematic top view of the structure of FIG. 23;

in the figure: 1-a cast-in-place cavity module; 2-mould tube; 3, enlarging a pouring area module; 4-a mold frame; 5-ring-shaped steel bars; 6, prefabricating a wall body; 7-insulating layer; 11-a body block; 12-a wing mass; 12 a-outer wing mass; 12 b-inner wing block; 121-a first wing piece; 122-a second wing mass; 123-groove; 13-a baffle; 14-an opening; 15-a rotating shaft; 41-bottom edge mold; 51-straight steel bars; 52-a ring segment; 61-a body cavity; 62-wing cavity; 8-inflating the core mold; 81-flange; 9-casting a cavity in situ; 10-concrete pouring channel.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments shown in the drawings. It should be understood that these embodiments are described only to enable those skilled in the art to better understand the invention and to implement the invention, and are not intended to limit the scope of the invention in any way.

Referring to fig. 1 to 10, an embodiment of the present invention provides a prefabricated wall mold, including a cast-in-place cavity module 1, where the cast-in-place cavity module 1 is generally located at the bottom of a core mold, and the upper portion of the cast-in-place cavity module has a mold pipe 2 for constructing a concrete pouring channel and an enlarged pouring area module 3. The core mould formed by the three components is positioned in a rectangular mould frame 4, and the mould frame 4 is formed by enclosing four side moulds respectively. The existing cast-in-place cavity module is substantially in a square box shape with uniform thickness and hollow inside, and in the present disclosure, the cast-in-place cavity module includes a main body block 11 located in the middle and wing blocks 12 located on both sides of the main body block 11, and in the following embodiments, for convenience of description, the wing block 12 on the left is referred to as a first wing block 121, and the wing block on the right is referred to as a second wing block 122.

The interior of the wing block 12 is also hollow and generally square. The wing pieces 12 are thicker than the body pieces 11, i.e., both front and rear surfaces of the wing pieces 12 are protruded with respect to the front and rear surfaces of the body pieces 11, thereby forming a stepped structure at both sides of the body pieces 1. The cavity thickness inside the wing block 12 is larger than the cavity thickness inside the main body block 11, as seen from the bottom cross section of the cast-in-place cavity block. This is so because the ring-shaped reinforcing bars 5, which are arranged vertically in the prefabricated wall mould, are provided in the receiving space of the wing blocks 12. The annular reinforcing steel bars comprise two straight reinforcing steel bars 51 which are parallel front and back, the top and the bottom of the two straight reinforcing steel bars 51 are connected together by arc-shaped reinforcing steel bars to form an annular shape, which is called as an annular section 52, and because the annular structures at the top and the bottom play a role of anchoring when the upper and lower wall bodies are butted, the annular reinforcing steel bars are adopted for anchoring connection and are also called as annular anchors.

According to the embodiment of the present disclosure, one of the linear reinforcements 51 of the ring-shaped reinforcements 5 is close to the front inner wall of the inside of the wing block 12, and the other linear reinforcement 51 is close to the rear inner wall of the inside of the wing block 12.

In addition, the cavity inside the wing block 12 not only needs to accommodate the vertical annular reinforcing steel bars of the prefabricated wall body, but also needs to accommodate the vertical annular reinforcing steel bars extending out of the top of the lower wall body when the upper and lower wall bodies are butted, so that the width of the wing block 12 needs to be designed reasonably, and the cavity constructed by the wing block can accommodate two groups of annular reinforcing steel bars arranged in parallel.

In some embodiments, the height of the wing blocks 12 and the height of the body blocks 11 are substantially uniform. An openable and closable shutter 13 is provided on the top of the wing block 12 so as to cover or uncover an opening 14 in the top of the wing block 12. Specifically, a rotating shaft 15 may be installed at the end of the sidewall at the top of the wing block 12, and the flap and the rotating shaft 15 may be pivotally connected. It should be noted that gaps are left on both sides of the top opening 14 of the wing block 12 for the straight reinforcing bars 51 of the ring-shaped reinforcing bars 5 to pass through. When the mould is set up, the baffle 13 opens the opening 14, penetrates the annular reinforcing steel bars 5 from the bottom of the wing blocks 12, penetrates the opening 14 and then extends to the upper side mould of the mould frame, the baffle 13 is dropped, the opening 14 is sealed by the baffle 13, and gaps on two sides are sealed by the linear reinforcing steel bars 51, so that the baffle 13 is isolated from outside cast-in-place concrete. At this time, concrete pouring is carried out, and a cast-in-place cavity with a cast-in-place cavity module shape is formed. After the concrete is solidified, the cast-in-place cavity module 1 is detached from the bottom, at the moment, the baffle 13 is tilted under the action of the detaching external force by virtue of the force of the rotating shaft 15, and the opening 14 below the baffle 13 is open, so that the wing blocks 12 can be separated from the prefabricated wall body without being blocked by the annular steel bars 5 at the bottom.

The position of the rotating shaft 15 and the position of the ring-shaped reinforcing bars 5 can be various. In some embodiments, the rotation shafts 15 of the first wing block 121 and the second wing block 122 are located at a side close to the body block 11 (as shown in fig. 5). At this time, the ring-shaped reinforcing bars 5 in the first wing pieces 121 are close to the main body piece 11 side, and the ring-shaped reinforcing bars 5 in the second wing pieces 122 are far from the main body piece 11 side. In other embodiments, as shown in fig. 2, the rotating shaft 15 of the second wing 122 is located at a side close to the main body 11, and the rotating shaft 15 of the first wing 121 is located at a side far from the main body 11. At this time, the ring-shaped reinforcing bars 5 in the first wing pieces 121 are located at a side far from the rotation shafts 15 thereof (i.e., a side close to the body piece 11), and the ring-shaped reinforcing bars 5 in the second wing pieces 122 are located at a side far from the rotation shafts 15 thereof (i.e., a side far from the body piece 11). The advantage of this design is that the ring reinforcement 5 and the pivot 15 are far from each other and the stop 13 only needs a relatively small angle of rotation to be able to block around the ring section 52 of the ring reinforcement 5.

As a variant, as shown in fig. 7-10, the wing 12 comprises an outer wing 12a and an inner wing 12b located inside the outer wing 12a, wherein the outer wing 12a has a height less than the height of the inner wing 12b (the inner wing 12b is substantially the same height as the body 11). An openable and closable shutter 13 is provided on the top of the outer panel 12 a. The outer wing blocks 12a are smaller so as to reduce the contact area between the mould and the concrete during production of the prefabricated wall, thereby reducing the continuous acting force of the mould and the concrete during form removal and reducing the possibility of cracking of the prefabricated wall during form removal.

In the embodiment of the disclosure, the outer wing block 12a is a trapezoid block with a narrow upper part and a wide lower part, and the trapezoid block is used for forming a certain draft angle, when the outer wing block is removed, the narrow part drops first, the wide part becomes looser and looser, the outer wing block can be drawn out from the prefabricated wall body more quickly and more easily, and meanwhile, the acting force between the mold and the concrete of the wall body is reduced.

Further, the inner wing block 12b and the main body block 11 may be integrated, and the outer wing block 12a is integrated with the bottom edge mold 41 in the mold frame 4, so that the bottom edge mold 41 and the outer wing block 12a may be removed together when the mold is removed, thereby improving the efficiency of removing the mold.

As for the arrangement of the baffle 13 and the rotating shaft 15 on the top of the outer wing block 12a, reference may be made to the description of the previous embodiment, which will not be repeated here.

Referring to fig. 17-19, in some embodiments, the precast wall mold further includes an inflatable core mold 8, and the inflatable core mold 8 is used to construct a concrete pouring channel in the precast wall. The cast-in-place cavity block 1 has a groove 123 at the top and the inflatable core mould bottom 8 has a flange 81 fitted into the groove 123 to attach to the upper part of the cast-in-place cavity block 1. The inflatable core 8 may be made of rubber. When the inflatable core mould is used as a core mould, the inflatable core mould 8 is placed into the mould frame 4 of the prefabricated wall mould, the inflated core mould is expanded, and after the concrete is solidified or semi-solidified, the inflatable core mould 8 is deflated and is pulled out of the prefabricated wall. The weight of the prefabricated wall body mould can be reduced by adopting the inflatable core mould.

In other embodiments, the inflatable core 8 is used to construct a cast-in-place cavity in a prefabricated wall, the cast-in-place cavity being located at least at the bottom of the prefabricated wall. Namely, the cast-in-place cavity can be positioned at the bottom and can also penetrate through the whole prefabricated wall body from top to bottom.

The shape of the inflated core mould 8 after inflation is determined by the shape of the concrete pouring channel 10 and/or the cast-in-place cavity in the prefabricated wall. For example, when used as a concrete pouring channel, it may be cylindrical, and the cross-section may be circular, elliptical or any other shape. If an inflatable core mold with an oval cross section is used, the concrete pouring channel 10 with an oval cross section can be formed. In the case of a circular shape, a concrete pouring channel 10 having a circular cross-section is formed (as shown in fig. 21 to 24).

In other embodiments, the cast-in-place cavity module may adopt the structure shown in fig. 20, and the cast-in-place cavity module also has an openable baffle 13 for vertical reinforcing bars to pass through.

As shown in fig. 11, the embodiment of the present disclosure further provides a prefabricated wall 6 manufactured by the prefabricated wall mold, where the cast-in-place cavity at the bottom of the prefabricated wall includes a main cavity 61 constructed by main blocks and wing cavities 62 located at two sides of the main cavity 61 and constructed by wing blocks, where the thickness of the wing cavities 62 is greater than that of the main cavity 61, a vertically arranged ring-shaped steel bar 5 is located in the wing cavities 62, the top of the ring-shaped steel bar 5 extends from the top of the prefabricated wall for anchoring with a wall at a previous layer, and the bottom of the ring-shaped steel bar 5 may extend out of the cast-in-place cavity or remain in the cast-in-place cavity. Fig. 12 shows an exterior wall structure with an additional layer of insulation 7 and outer louvers compared to fig. 11.

Referring to fig. 21-24, the ring-shaped reinforcing bars mainly include two portions, the first portion is two vertical reinforcing bars (i.e., straight reinforcing bars 51), and the second portion is a closed section (i.e., ring-shaped section 52) closing the bottoms of the two vertical reinforcing bars. The vertical steel bars are positioned in the precast concrete of the cast-in-place cavity section, and the closed section is exposed relative to the bottom of the precast wall body. For example, the cast-in-place cavity section is located at the bottom of the prefabricated wall body and comprises the cast-in-place cavity 9 and prefabricated concrete located around the cast-in-place cavity 9, wherein the linear steel bars 51 are located in the prefabricated concrete and are not exposed. The ring segments 52 are exposed to the precast wall, i.e., not encased in precast concrete.

The embodiment of the present disclosure further provides a connection structure of an upper wall and a lower wall implemented by using the prefabricated wall, as shown in fig. 13 to 14, in the connection structure, the annular reinforcing steel bars 5 extending from the top of the lower wall are inserted into the wing cavities 62 at the bottom of the upper wall, and are overlapped with the annular reinforcing steel bars 5 at the bottom of the upper wall, so as to implement ring anchor connection between the upper wall and the lower wall. The connection mode can ensure good connection strength without depending on a steel bar groove constructed by the rubber strips. The construction of figures 15-16 is substantially the same as that of figures 13-14 except that the outer leaf wall attachment structure is provided with an additional layer of insulation 7 and outer leaf panels.

The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.

Claims (11)

1. A prefabricated wall body mould comprises a cast-in-place cavity module, and is characterized in that the cast-in-place cavity module comprises a main body block and wing blocks arranged on two sides of the main body block; the front surface and the rear surface of the wing block are respectively raised relative to the front surface and the rear surface of the main body block so as to form a cavity capable of containing annular reinforcing steel bars in the wing block; the upper end of the wing block is provided with an opening, an openable baffle is mounted on the opening, and when the baffle is opened, the annular section of the annular reinforcing steel bar can pass through the opening.

2. The prefabricated wall body mold of claim 1, wherein a rotating shaft is arranged on the wing blocks, and the baffle is pivotally connected with the rotating shaft so as to realize the opening and closing actions of the baffle.

3. The prefabricated wall body mold of claim 2, wherein the cavity for accommodating the ring-shaped reinforcing steel bars is box-shaped, the rotating shaft is located at the top of one side wall of the cavity, and the ring-shaped reinforcing steel bars are close to the side wall of one side of the rotating shaft or close to the side wall opposite to the side wall of one side of the rotating shaft.

4. The prefabricated wall body mold of claim 1, wherein the wing blocks include an outer wing block and an inner wing block located inside the outer wing block, wherein the outer wing block has a height smaller than a height of the inner wing block; the openable and closable baffle is arranged on the top of the outer wing block.

5. The prefabricated wall body mold of claim 4, wherein the outer wing blocks are trapezoidal blocks with narrow top and wide bottom.

6. The prefabricated wall body mold of claim 4 or 5, further comprising a bottom side mold, wherein the outer wing blocks and the bottom side mold are of an integral structure.

7. The precast wall mold of claim 1, further comprising an air-filled core mold for constructing a concrete pouring passage in the precast wall body, connected to an upper portion of the cast-in-place cavity module.

8. The precast wall mold of claim 1, further comprising an air-filled core mold for constructing a cast-in-place cavity in the precast wall body, the cast-in-place cavity being located at least at the bottom of the precast wall body.

9. A prefabricated wall body, characterized in that, made by the prefabricated wall body mould of any one of claims 1-8, the prefabricated wall body comprises a cast-in-place cavity, the cast-in-place cavity comprises a main body cavity and wing cavities positioned at two sides of the main body cavity, the thickness of the wing cavities is larger than that of the main body cavity, and ring-shaped steel bars arranged vertically are arranged in the wing cavities.

10. The prefabricated wall body of claim 9, wherein the ring-shaped reinforcing bars comprise at least two vertical reinforcing bars and a closing section for closing the bottoms of the vertical reinforcing bars; the vertical steel bars are positioned in the precast concrete of the cast-in-place cavity section, and the closed section is exposed relative to the bottom of the precast wall body.

11. The structure for connecting upper and lower walls using the prefabricated wall according to claim 9, wherein the ring-shaped reinforcing bars at the top of the lower prefabricated wall extend into the wing cavities at the bottom of the upper prefabricated wall.

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