Portable fixing device for assembly type prefabricated laminated slab mold

By designing channel steel and threaded steel sections, and combining them with M12 bolts, the problems of traditional magnetic box fixing devices, such as large weight, inconvenient operation, high cost, and low space utilization efficiency, are solved, achieving lightweight fixing and efficient production.

CN224170059UActive Publication Date: 2026-04-28ZHEJIANG GUANGTIAN COMPONENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GUANGTIAN COMPONENT CO LTD
Filing Date
2025-02-13
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional magnetic box fixing devices are heavy, inconvenient to operate, costly, and have low space utilization efficiency, which limits their application and development in the field of prefabricated buildings.

Method used

The design incorporates channel steel sections and threaded steel sections, combined with M12 bolts for easy fixing. The welding and threaded connection of the channel steel sections and threaded steel sections enable rapid and stable fixing of the mold.

Benefits of technology

It reduced the labor intensity of workers, significantly reduced production costs, and improved the space utilization and production efficiency of the mold table.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224170059U_ABST
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Abstract

The utility model discloses an assembly type prefabricated laminated slab mould light fixing device, which comprises a channel steel section, the back of the channel steel section is welded with a deformed steel bar section used for improving the bending resistance, the channel steel section comprises a first waist side, a threaded hole is formed in the first waist side in a penetrating manner, a bolt penetrates through the threaded hole and is in threaded connection with the threaded hole, and the first waist side is provided with a second waist side. The channel steel section further comprises a second waist side, the second waist side abuts against the lower surface of the mold table, a laminated slab mold is arranged on the mold table, the lower end of the bolt abuts against the laminated slab mold, and the channel steel section faces the side of the mold table and is installed on the edge of the mold table and the edge of the laminated slab mold; through reasonable structural design and simple operation steps, the mold can be quickly and stably fixed, meanwhile, the production cost is reduced, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of prefabricated building molds, specifically to a lightweight fixing device for prefabricated composite slab molds. Background Technology

[0002] In the field of prefabricated buildings, the fixing device for precast composite slab molds is one of the key components. Traditional fixing methods mainly rely on magnetic box systems. While this system can meet the fixing requirements to a certain extent, it has some significant problems and limitations:

[0003] 1. Construction and Connection: Traditional magnetic boxes are usually made of magnetic materials and are relatively large (e.g., 250mm x 120mm x 60mm), requiring at least 200mm of space to be reserved for placement. This not only increases the space occupied but also limits the overall utilization rate of the mold table.

[0004] 2. Weight and operation: The magnetic box is heavy, making it inconvenient to assemble and disassemble quickly, especially when frequent mold changes are required. This greatly increases the labor intensity and operation time for workers.

[0005] 3. Cost Issues: The cost of the magnetic cartridges is relatively high, with each cartridge costing approximately 135 yuan. They require remagnetization after one year of use, costing 30 yuan each time. After two years, the cartridges are scrapped, with a residual value of only 23 yuan. In the long run, such high maintenance and usage costs represent a significant expense for large-scale production.

[0006] 4. Economic Analysis: Considering the high cost and low turnover rate of the magnetic box, its economic efficiency is not ideal. In contrast, the material and labor cost of the new fixing device is only 5 yuan per unit, and it can be reused 150-180 times. Even after two years of use, the total cost is far lower than that of the magnetic box.

[0007] 5. Space Efficiency: Since the magnetic box requires its own mold table space, this directly affects the overall utilization rate of the mold table. Such space waste is unacceptable within a limited working area.

[0008] In summary, although the existing magnetic box fixing system can achieve basic fixing functions, its large weight, inconvenient operation, high cost, and low space utilization efficiency limit its application and development in the field of prefabricated buildings.

[0009] Accordingly, this utility model proposes a lightweight fixing device for prefabricated composite slab molds to solve the above problems. Utility Model Content

[0010] In order to overcome the defects in the prior art, this utility model provides a lightweight fixing device for prefabricated composite slab molds. Through reasonable structural design and simple operation steps, it achieves rapid and stable fixing of the mold, while reducing production costs and improving production efficiency.

[0011] Technical solution

[0012] A lightweight fixing device for prefabricated composite slab molds includes a channel steel section, the back of which is welded with a threaded steel section to increase bending resistance. The channel steel section includes a first waist side, on which a threaded hole is passed through, and a bolt is threaded through and connected to the threaded hole.

[0013] Furthermore, the channel steel section also includes a second waist side, which abuts against the lower surface of the mold table.

[0014] Furthermore, a composite plate mold is provided on the mold platform, and the lower end of the bolt abuts against the composite plate mold.

[0015] Furthermore, the channel steel section faces the mold platform and is installed on the edge of the mold platform and the composite plate mold.

[0016] Furthermore, the diameter of the threaded steel section is 12mm.

[0017] Furthermore, the bolt is an M12 bolt, and the threaded hole size is M12.

[0018] Beneficial effects

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] 1. Improved ease of use:

[0021] The weight is significantly reduced compared to traditional magnetic boxes, making it easier for workers to assemble and disassemble them;

[0022] 2. Cost savings:

[0023] The material and labor costs are only 5 yuan per unit, far lower than the 135 yuan per unit of the magnetic box. Even considering a two-year usage period (including magnetization costs), the total cost of the new fixing device is only 7% of that of the magnetic box. This significant cost advantage enables companies to greatly reduce fixed costs in large-scale production.

[0024] 3. Improved space utilization:

[0025] It does not require separate mold table space, which increases the overall utilization rate of the mold table by 18%. This means that more molds can be placed in the same production area, thereby improving the production line's capacity and efficiency.

[0026] Through reasonable structural design and simple operation steps, the mold can be quickly and stably fixed, while reducing production costs and improving production efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a lightweight fixing device for prefabricated composite slab molds according to the present invention.

[0028] Figure 2 for Figure 1 Top view.

[0029] Attached icon number

[0030] 1. Threaded steel section; 2. Channel steel section; 3. Bolt; 4. Composite plate mold; 5. Mold table; 6. Threaded hole; 7. Second waist side; 8. First waist side. Detailed Implementation

[0031] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:

[0032] have Figures 1-2 As shown, this utility model discloses a lightweight fixing device for prefabricated composite slab molds, including a channel steel section 2. A threaded steel section 1 for increasing bending resistance is welded to the back of the channel steel section 2. The channel steel section 2 includes a first waist side 8. A threaded hole 6 is passed through the first waist side 8. A bolt 3 is passed through and threadedly connected to the threaded hole 6.

[0033] Furthermore, the channel steel section 2 also includes a second waist side 7, which abuts against the lower surface of the mold table 5.

[0034] Furthermore, a composite plate mold 4 is provided on the mold platform 5, and the lower end of the bolt 3 abuts against the composite plate mold 4.

[0035] Furthermore, the channel steel section 2 faces the mold platform 5 and is installed on the edge of the mold platform 5 and the composite plate mold 4.

[0036] Furthermore, the diameter of the threaded steel section 1 is 12mm.

[0037] Furthermore, the bolt 3 is an M12 bolt, and the threaded hole 6 is M12 in size.

[0038] Specifically, when using it:

[0039] Preparation stage: Based on the size and shape of the mold, prepare threaded steel section 1 and channel steel section 2 of the corresponding length and shape in advance;

[0040] Installation stage: Insert the second waist side 7 of the channel steel section 2 into the lower side of the mold table 5 and adjust its position; weld the threaded steel section 1 onto the channel steel section 2; screw in the M12 screws until they contact the composite plate mold 4;

[0041] Disassembly stage: Use an electric wrench to loosen the M12 screws and remove the mold; if reuse is required, clean and store the device.

[0042] This utility model is lightweight and easy to operate, with each unit weighing approximately 550g. It can be assembled and disassembled using an electric wrench, reducing the labor intensity of workers.

[0043] The cost is low, with material and labor costs of only 5 yuan per unit, and it can be reused 150-180 times, which significantly reduces production costs;

[0044] It does not require separate mold table space, which increases the overall utilization rate of the mold table by 18% and improves production efficiency.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A lightweight fixing device for prefabricated composite slab molds, characterized in that: It includes a channel steel section (2), and a threaded steel section (1) for increasing bending resistance is welded to the back of the channel steel section (2). The channel steel section (2) includes a first waist side (8), and a threaded hole (6) is passed through the first waist side (8). A bolt (3) is passed through and threadedly connected in the threaded hole (6).

2. The lightweight fixing device for prefabricated composite slab molds according to claim 1, characterized in that: The channel steel section (2) also includes a second waist side (7), which abuts against the lower surface of the mold table (5).

3. The lightweight fixing device for prefabricated composite slab molds according to claim 2, characterized in that: The mold table (5) is provided with a composite plate mold (4), and the lower end of the bolt (3) abuts against the composite plate mold (4).

4. The lightweight fixing device for prefabricated composite slab molds according to claim 3, characterized in that: The channel steel section (2) faces the mold platform (5) and is installed on the edge of the mold platform (5) and the composite plate mold (4).

5. The lightweight fixing device for prefabricated composite slab molds according to claim 4, characterized in that: The diameter of the threaded steel section (1) is 12 mm.

6. The lightweight fixing device for prefabricated composite slab molds according to claim 5, characterized in that: The bolt (3) is an M12 bolt, and the threaded hole (6) is M12 in size.