Prefabricated laminated slab double-layer mold

Abstract

The utility model discloses a prefabricated laminated slab double-layer mold, and relates to the technical field of prefabricated laminated slab molds, the prefabricated laminated slab double-layer mold comprises an upper-layer mold plate and a lower-layer mold plate, the upper-layer mold plate and the lower-layer mold plate are connected through a fixing assembly, and a sealing strip is connected between the upper-layer mold plate and the lower-layer mold plate; the sealing strip is used for sealing a gap between the upper-layer formwork and the lower-layer formwork, the upper-layer formwork and the lower-layer formwork are each provided with a blocking face, and the sealing strip and the fixing assembly are located on the same side of the blocking faces. One side of each reinforcing steel bar abuts against the upper-layer formwork or the lower-layer formwork, the other side of each reinforcing steel bar abuts against the sealing strip, the sealing strip is pressed to generate elastic deformation and keeps the trend of elastic reset, and the sealing strips can be used in cooperation with the reinforcing steel bars at different intervals. And the sealing strip plays a role in sealing, so that the situation that concrete grout overflows is reduced. And when the upper-layer template is separated from the lower-layer template, the sealing strips are elastically reset, so that the next operation is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated composite panel molds, and in particular to a double-layer mold for prefabricated composite panels. Background Art

[0002] Precast composite slabs are typically constructed by laminating precast concrete slabs with cast-in-place concrete layers. The precast slabs serve as both a structural component of the floor and a permanent formwork for the cast-in-place layers. Reinforcement can be pre-placed within the precast slabs, and horizontal service piping can be laid within the cast-in-place concrete layers.

[0003] Traditional L-shaped molds require punching holes on one side of the L-shaped facade to place steel bars; traditional molds are customized according to the different drawing requirements and steel bar spacing of each construction project. If a project is changed and the drawing requirements change, the mold cannot be used anymore and needs to be replaced. This needs to be improved. Utility Model Content

[0004] The purpose of this application is to provide a double-layer mold for prefabricated composite panels, which is suitable for steel bars with different spacings.

[0005] A double-layer mold for a prefabricated composite panel provided in the present application adopts the following technical solution: it includes an upper template and a lower template, the upper template and the lower template are connected by a fixed component, a sealing strip is connected between the upper template and the lower template, the sealing strip is used to seal the gap between the upper template and the lower template, the upper template and the lower template are both provided with a blocking surface, and the sealing strip and the fixed component are located on the same side of the blocking surface.

[0006] By adopting the above technical solution, the lower formwork is fixed to the formwork table through a magnetic box, and the steel bars are placed between the upper formwork and the lower formwork. Since the upper formwork and the lower formwork are separated, they are suitable for steel bars with different spacings. The upper formwork and the lower formwork are connected together by a fixing component. One side of the steel bar abuts against the upper formwork or the lower formwork, and the other side abuts against the sealing strip. The sealing strip is elastically deformed under pressure and maintains a tendency to elastically reset. The sealing strip can be used with steel bars with different spacings. The sealing strip plays a sealing role, thereby reducing the occurrence of concrete slurry overflow. When the upper formwork is separated from the lower formwork, the sealing strip elastically resets to facilitate the next operation.

[0007] Optionally, two limiting plates are provided on a side of the upper template close to the lower template, and a mounting groove for the sealing strip to be inserted is formed between the two limiting plates.

[0008] By adopting this technical solution, the sealing strip snaps into the mounting groove, with the outer surface of the sealing strip abutting the inner wall of the mounting groove. The inner wall of the mounting groove restricts the movement of the sealing strip, thereby improving the stability of the sealing strip installed on the upper formwork. The cooperation between the sealing strip and the mounting groove increases the contact area between the sealing strip and the upper formwork, thereby increasing the flow path of the concrete slurry and improving the sealing performance.

[0009] Optionally, the fixing assembly includes a fixing column arranged on the lower template and a bolt threadedly connected to the fixing column, and the bolt can pass through the upper template and be threadedly connected to the fixing column.

[0010] By adopting the above technical solution, when the upper and lower templates need to be fixed, one end of the bolt passes through the upper template and is threadedly connected to the fixing column until the upper template is clamped by the lower template and the bolt, thereby achieving the fixed installation of the upper and lower templates. When the upper and lower templates need to be separated, the bolt is loosened to separate the bolt from the fixing column, and the upper template can be removed from the lower template, allowing the mold to install steel bars with different spacing between the upper and lower templates.

[0011] Optionally, the upper template is provided with waist-shaped holes for the bolts to pass through.

[0012] By adopting the above technical solution, the waist-shaped hole is used to eliminate tolerances, making it easier for bolts to pass through the upper template and connect with the fixed column thread. The waist-shaped hole provides more room for bolt installation and enables quick installation of bolts.

[0013] Optionally, at least two convex portions are spaced apart on a side of the lower template away from the upper template, and the convex portions are distributed along the length of the blocking surface.

[0014] By adopting the above technical solution, when the concrete vibration force is too great or the magnetic force of the magnetic box pressing the mold is insufficient, the mortar in the concrete will enter the gap between the lower formwork and the formwork platform and penetrate into the gap between adjacent protrusions. This gap provides space for the flow of mortar, reduces the occurrence of the upper and lower formwork being lifted compared to the formwork platform, and improves the product qualification rate.

[0015] Optionally, the protrusion is integrally formed with the lower template.

[0016] By adopting the above technical solution, the integral formation of the convex portion and the lower template helps to improve the stability and bearing capacity of the structure, is also easy to process, and saves time for later assembly or welding.

[0017] Optionally, the protrusion is an elastic portion.

[0018] By adopting the above technical solution, when the lower formwork is fixed to the formwork table through the magnetic box, the convex part is compressed to produce elastic deformation and maintain the tendency of elastic reset, thereby reducing the gap between the lower formwork and the formwork table, reducing the occurrence of concrete slurry overflow, and improving the sealing.

[0019] Optionally, the blocking surface is provided with a plurality of protrusions.

[0020] By adopting the above technical solution, the role of the plurality of protrusions is to improve the aesthetics of the side panels of the precast concrete panels.

[0021] Optionally, the sealing strip is a foamed silicone strip.

[0022] By adopting the above technical solution, the foamed silicone strip has moderate hardness and is not bonded to concrete, which can overcome the problems of poor sealing effect, easy bonding to concrete and short service life of traditional sealing strips.

[0023] Optionally, the sealing strip is provided with an extension portion, and when the upper template is connected to the lower template, both the upper template and the lower template abut against the extension portion.

[0024] By adopting the above technical solution, the extended portion increases the contact area between the sealing strip and the upper formwork, the lower formwork and the steel bars, that is, increases the flow path of the concrete slurry and improves the sealing performance.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The lower formwork is secured to the formwork table via a magnetic box. The rebar is placed between the upper and lower forms. Since the upper and lower forms are separate, they accommodate rebar spacings of varying lengths. The upper and lower forms are connected via a fixing assembly. One side of the rebar abuts the upper or lower formwork, while the other side abuts the sealing strip. The sealing strip elastically deforms under pressure and maintains a tendency to elastically return to its original position, making it suitable for use with rebar spacings of varying lengths. This seal acts as a seal, minimizing the risk of concrete slurry spillage. When the upper and lower forms are separated, the sealing strip elastically returns to its original position, facilitating the next operation.

[0027] 2. When the concrete vibration force is too great or the magnetic force of the magnetic box pressing the mold is insufficient, the mortar in the concrete will enter the gap between the lower formwork and the formwork platform and penetrate into the gap between adjacent protrusions. This gap provides space for the flow of mortar, reducing the upper and lower formwork being lifted compared to the formwork platform, thereby improving the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0029] Figure 2 This is a cross-sectional view of Example 1 of the present application.

[0030] Figure 3 It is a schematic diagram of the overall structure of four double-layer molds.

[0031] Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0032] Figure 5 yes Figure 4 Magnified view of area A.

[0033] Figure 6 It is a schematic diagram of the overall structure of Example 3 of the present application.

[0034] Explanation of the accompanying reference numerals: 1. Upper template; 11. Limiting plate; 12. Mounting groove; 13. Blocking surface; 14. Waist-shaped hole; 15. Protrusion; 2. Lower template; 21. Protrusion; 3. Sealing strip; 31. Extension part; 4. Fixing assembly; 41. Fixing column; 42. Bolt. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0036] The embodiment of the present application discloses a double-layer mold for a prefabricated composite panel.

[0037] Combine Figure 1 and Figure 2 As shown, the upper formwork 1 and the lower formwork 2 are both made of carbon steel. A sealing strip 3 is connected between the upper and lower forms. The sealing strip 3 is a foamed silicone strip. The foamed silicone strip has a moderate hardness and excellent property of not bonding to concrete. This overcomes the problems of traditional sealing strips 3, such as poor sealing effect, easy bonding to concrete, and short service life. The sealing strip 3 is rectangular. Two stoppers 11 are positioned opposite each other on the side of the upper formwork 1 near the lower formwork 2. A mounting groove 12 is formed between the two stoppers 11 for the sealing strip 3 to engage. A blocking surface 13 is provided on the same side of the upper and lower forms 1 and 2, and the blocking surface 13 on the upper formwork 1 extends to one of the stoppers 11. The cross-section of the upper formwork 1 is F-shaped, while the cross-section of the lower formwork 2 is rectangular.

[0038] Combine Figure 1 and Figure 2As shown, the upper formwork 1 and the lower formwork 2 are connected by a fixing assembly 4. The sealing strip 3 and the fixing assembly 4 are both located on the same side of the blocking surface 13. The fixing assembly 4 includes fixing posts 41 arranged opposite to each other on the lower formwork 2 and bolts 42 threadedly connected to the corresponding fixing posts 41. The fixing posts 41 are integrally formed with the lower formwork 2. The upper formwork 1 is provided with waist-shaped holes 14 for the corresponding bolts 42 to pass through. The waist-shaped holes 14 extend along the length of the upper formwork 1. The blocking surface 13 on the upper formwork 1 is provided with a plurality of semi-spherical protrusions 15. The protrusions 15 are integrally formed with the upper formwork 1, and the mounting grooves 12 are located between the protrusions 15 and the waist-shaped holes 14. Two protrusions 21 are oppositely provided on the side of the lower formwork 2 facing away from the upper formwork 1. The two protrusions 21 are distributed along the length of the blocking surface 13 and are both integrally formed with the lower formwork 2. In other embodiments, the protrusions 21 are elastic portions fixedly connected to the lower formwork 2.

[0039] The implementation principle of a double-layer mold for a prefabricated composite plate in the embodiment of the present application is as follows:

[0040] like Figure 3 As shown, four lower templates 2 are laid on the formwork platform and firmly fixed to the formwork platform using a magnetic box with a pressure plate. The four lower templates 2 enclose a four-sided area. Rebar is laid on the lower templates 2, and the upper template 1 is installed on the corresponding lower template 2 using bolts 42. The sealing strip 3 is elastically deformed under pressure, which can fill the gap between the upper template 1 and the lower template 2 and improve the sealing performance. Concrete is poured in the enclosed area of ​​the mold, cured, and formed. The concrete is then demolded and stacked for use on the construction site.

[0041] Example 2

[0042] The difference between this embodiment and embodiment 1 is that, Figure 4 and Figure 5 As shown, the sealing strip 3 is relatively provided with two extended parts 31, and the sealing strip 3 is located between the two extended parts 31. The two extended parts 31 are integrally formed with the sealing strip 3. When the upper template 1 and the lower template 2 are connected, the upper template 1 and the lower template 2 are both in contact with the extended parts 31.

[0043] Example 3

[0044] The difference between this embodiment and embodiment 1 is that Figure 6 As shown, there is only one limiting plate 11 arranged on the side of the upper template 1 away from the lower template 2, and the upper template 1 is provided with a groove for the sealing strip 3 to be snapped into.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A double-layer mold for prefabricated composite panels, characterized by: The invention comprises an upper template (1) and a lower template (2), wherein the upper template (1) and the lower template (2) are connected via a fixing assembly (4), a sealing strip (3) is connected between the upper template (1) and the lower template (2), and the sealing strip (3) is used to seal the gap between the upper template (1) and the lower template (2), and the upper template (1) and the lower template (2) are both provided with a blocking surface (13), and the sealing strip (3) and the fixing assembly (4) are located on the same side of the blocking surface (13).

2. The double-layer mold for prefabricated composite panels according to claim 1, characterized in that: Two limiting plates (11) are provided on one side of the upper template (1) close to the lower template (2), and a mounting groove (12) for the sealing strip (3) to be snapped in is formed between the two limiting plates (11).

3. The double-layer mold for prefabricated composite panels according to claim 1, characterized in that: The fixing assembly (4) comprises a fixing column (41) provided on the lower template (2) and a bolt (42) threadedly connected to the fixing column (41); the bolt (42) can pass through the upper template (1) and be threadedly connected to the fixing column (41).

4. The double-layer mold for prefabricated composite panels according to claim 3, characterized in that: The upper template (1) is provided with waist-shaped holes (14) for the bolts (42) to pass through.

5. The double-layer mold for prefabricated composite panels according to claim 1, characterized in that: At least two convex portions (21) are spaced apart on a side of the lower template (2) away from the upper template (1), and the convex portions (21) are distributed along the length of the blocking surface (13).

6. The double-layer mold for prefabricated composite panels according to claim 5, characterized in that: The convex portion (21) and the lower layer template (2) are integrally formed.

7. The double-layer mold for prefabricated composite panels according to claim 5, characterized in that: The convex portion (21) is an elastic portion.

8. The double-layer mold for prefabricated composite panels according to claim 1, characterized in that: The blocking surface (13) is provided with a plurality of protrusions (15).

9. The double-layer mold for prefabricated composite panels according to claim 1, characterized in that: The sealing strip (3) is a foamed silicone strip.

10. The double-layer mold for prefabricated composite panels according to claim 1, characterized in that: The sealing strip (3) is provided with an extension portion (31), and when the upper template (1) is connected to the lower template (2), both the upper template (1) and the lower template (2) abut against the extension portion (31).

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