Mortar leakage prevention device for prefabricated laminated slab

By setting pre-reserved grooves and rubber strips on the edge mold of the composite plate and fastening them with fixing buckles, the problem of grout leakage caused by the gap between the mold and the mold table is solved, and the sealing effect and quality assurance of the composite plate are achieved.

CN224224146UActive Publication Date: 2026-05-12SHAANXI CONSTR ENG (ANKANG) NEW BUILDING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI CONSTR ENG (ANKANG) NEW BUILDING MATERIALS CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

During the production process, gaps easily form at the contact surface between the existing precast composite slab mold and the mold table, leading to grout leakage and affecting the appearance and quality of the composite slab.

Method used

A pre-reserved groove is set on the edge mold of the composite board, and a rubber strip is placed in it. The rubber strip is fastened with a fixing buckle to achieve a sealing effect and prevent grout leakage.

Benefits of technology

The design with pre-reserved grooves and adhesive strips effectively prevents grout leakage during the production of composite panels, ensuring production quality and appearance, and the device can be used for a long time.

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Abstract

The utility model discloses a prefabricated laminated slab slurry leakage prevention device which comprises a laminated slab side die, a reserved groove is formed in the laminated slab side die, a rubber strip is arranged in the reserved groove, a fixed box hole is welded to the side edge, close to the reserved groove, of the laminated slab side die, and a fixed box is welded to the side edge, close to the reserved groove, of the laminated slab side die. A fixing buckle is further arranged on the side face of the laminated slab side die. According to the utility model, the reserved groove and the adhesive tape are arranged, the reserved groove is formed in the side die of the prefabricated laminated slab die, the adhesive tape is stuffed into the reserved groove, the redundant part of the adhesive tape on the two sides is folded and stuffed into the hole of the fixed box, and meanwhile, one end of the fixed buckle is fastened, so that the adhesive tape is compacted and contacted with the die table; the sealing effect in the production process of the laminated slab is achieved, and the slurry leakage phenomenon in the production process is prevented. The device is suitable for the production of prefabricated laminated slabs, can be used for a long time after being fixed once, and can effectively eliminate the slurry leakage phenomenon of the laminated slabs in the production stage.
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Description

Technical Field

[0001] This utility model belongs to the field of precast composite slab technology, and specifically relates to a grout leakage prevention device for precast composite slabs. Background Technology

[0002] Currently, in the production process of composite slabs, either double-layer molds or single-layer molds are generally used. When using double-layer molds, there are two mold layers, with the reinforcing mesh placed between the upper and lower molds and connected by bolts. Single-layer molds have openings on the side of the mold; the reinforcing mesh is then inserted into these openings before in-situ casting.

[0003] Both types of molds have the same problem in production: due to various factors, gaps may form at the contact surface between the mold and the mold table during production, resulting in grout leakage. This not only affects the appearance of the precast composite slab but also causes quality problems. Therefore, there is an urgent need for a grout leakage prevention device for precast composite slabs. Utility Model Content

[0004] The main purpose of this utility model is to provide a grout leakage prevention device for precast composite slabs, which solves the problem that grout leakage is prone to occur when a certain gap is generated at the contact surface between the mold and the mold table during the production process of existing precast composite slab molds.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a precast composite slab anti-leakage device, including a composite slab side mold, a reserved groove is provided on the composite slab side mold, an adhesive strip is provided in the reserved groove, a fixing box hole is welded on the side of the composite slab side mold near the reserved groove, and a fixing buckle is also provided on the side of the composite slab side mold.

[0006] Furthermore, the reserved groove is located at the contact surface between the edge mold of the composite plate and the mold table.

[0007] Furthermore, the size of the adhesive strip is set to correspond to the size of the reserved groove.

[0008] Furthermore, the length of the adhesive strip is greater than the length of the reserved groove.

[0009] Furthermore, the fixing buckle includes a connecting strip, one end of which is welded to the side of the composite plate edge mold, and the other end of which is provided with a buckle.

[0010] Compared with existing technologies, this invention has the following advantages: By setting a pre-reserved groove and adhesive strip, a pre-reserved groove is set on the edge mold of the composite slab. The adhesive strip is inserted into the pre-reserved groove, and the excess part of the adhesive strip on both sides is folded over and inserted into the hole of the fixing box. At the same time, one end of the fixing buckle is fastened. Through the pressure of the adhesive strip against the mold table, a sealing effect is achieved during the production of the composite slab, preventing grout leakage during production. This device is suitable for the production of precast composite slabs and can be used for a long time after one fixing, effectively eliminating grout leakage during the production stage of the composite slab. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of a precast composite slab anti-grout leakage device according to the present invention;

[0012] Figure 2 This is a schematic diagram of the pre-reserved groove structure of a precast composite slab anti-grout leakage device according to the present invention;

[0013] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Reservation groove; 2. Adhesive strip; 3. Fixing box hole; 4. Fixing buckle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] See Figure 1 , Figure 2 and Figure 3 This utility model discloses a precast composite slab anti-leakage device, including a composite slab side mold, on which a reserved groove 1 is provided. Specifically, the reserved groove 1 is located at the contact surface between the composite slab side mold and the mold table, that is, the side of the composite slab side mold close to the bottom mold. A rubber strip 2 is provided in the reserved groove 1, the size of the rubber strip 2 corresponding to the size of the reserved groove 1, and the length of the rubber strip 2 is greater than the length of the reserved groove 1.

[0017] Furthermore, a fixing box hole 3 is provided on the side of the composite plate side mold near the reserved groove 1. Specifically, the fixing box hole 3 is welded to the side of the composite plate side mold. Furthermore, a fixing buckle 4 is also provided on the side of the composite plate side mold. Specifically, the fixing buckle 4 includes a connecting strip, one end of which is welded to the side of the composite plate side mold, and the other end of which is provided with a buckle.

[0018] It should be noted that the reserved groove 1 and the fixing box hole 3 should be reasonably laid out according to the size of the side mold of the composite plate to avoid affecting the quality of the side mold.

[0019] The implementation process of this utility model is as follows: First, a reserved groove 1 is set on the side mold of the precast composite slab mold. A suitable adhesive strip 2 is selected according to the size of the reserved groove 1, and the adhesive strip 2 is inserted into the reserved groove 1. The excess parts of the adhesive strip 2 on both sides are folded over and inserted into the fixing box hole 3. At the same time, one end of the fixing buckle 4 is fastened to ensure that the adhesive strip 2 does not shift laterally or vertically. Through the compact contact between the adhesive strip 2 and the mold table, a sealing effect is achieved during the production of the composite slab, preventing grout leakage during production. Finally, the composite slab mold with the adhesive strip 2 installed is fixed on the mold table for the production of the precast composite slab.

[0020] This device is suitable for the production of precast composite slabs. Once fixed, it can be used for a long time and can effectively prevent grout leakage during the production of composite slabs.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast composite slab anti-grout leakage device, characterized in that: The mold includes a side mold for composite slabs, a pre-reserved groove (1) is provided on the side mold for composite slabs, a rubber strip (2) is provided in the pre-reserved groove (1), a fixing box hole (3) is welded on the side of the side mold for composite slabs near the pre-reserved groove (1), and a fixing buckle (4) is also provided on the side of the side mold for composite slabs.

2. The precast composite slab anti-leakage device according to claim 1, characterized in that: The reserved groove (1) is set at the contact surface between the edge mold of the composite plate and the mold table.

3. The precast composite slab anti-grout leakage device according to claim 1, characterized in that: The size of the adhesive strip (2) is set to correspond to the size of the reserved groove (1).

4. The precast composite slab anti-leakage device according to claim 1, characterized in that: The length of the adhesive strip (2) is greater than the length of the reserved groove (1).

5. The precast composite slab anti-grout leakage device according to claim 1, characterized in that: The fixing buckle (4) includes a connecting strip, one end of which is welded to the side of the composite plate mold, and the other end of which is provided with a buckle.