Permanent in-situ concrete composite insulation form

CN224300295UActive Publication Date: 2026-05-29ZHONGYU JIAQIANG CONSTR GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGYU JIAQIANG CONSTR GRP CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing building insulation systems suffer from problems such as water seepage at joints, widening of gaps, short service life, and poor earthquake and fire resistance. Furthermore, traditional formwork splicing is unstable, affecting the performance.

Method used

The permanent cast-in-place concrete composite insulation formwork is adopted. Through the staggered splicing of the connection mechanism and the design of the sealing strip, the stability of the formwork connection is enhanced. The cavity in the composite insulation mechanism and the secondary hydration reaction of the repair layer are used to fill the gaps, thereby improving the insulation effect and service life.

Benefits of technology

This achieves stability and sealing of the template connection, improves insulation performance, extends service life, and reduces maintenance costs.

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Abstract

The utility model discloses permanent cast-in-situ concrete composite heat preservation template, specifically related to building heat preservation product technical field, including shell, and the outside of shell is provided with connecting mechanism, connecting mechanism includes upper connecting plate, and the bottom fixed connection of upper connecting plate and shell top, and the top fixed connection of upper connecting plate has a plurality of limit posts. The utility model discloses through the mutual splicing of upper connecting plate and lower connecting plate, and multiple shell can be connected in place fast, through the staggered connection of sealing strip no.
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Description

Technical Field

[0001] This utility model relates to the field of building insulation products technology, and more specifically, to a permanent cast-in-place concrete composite insulation template. Background Technology

[0002] Traditional roof insulation methods involve installing cement-supported insulation boards on top of a waterproof layer. This method has been gradually phased out due to its poor insulation performance, poor weather resistance, and high maintenance costs. Instead, cement-expanded perlite insulation blocks, mineral wool and rock wool insulation boards, and plaster insulation mortar have been used. However, these materials have low strength, are easily damaged, and have high water absorption, resulting in reduced insulation performance and poor weather resistance.

[0003] Existing insulation systems have many problems, such as service life, earthquake resistance, fire prevention, and leakage prevention. For example, there are issues with the maintenance and cost of energy-saving walls, poor performance of the insulation system, structural safety hazards, and common engineering quality problems (cracking, peeling, and leakage).

[0004] A search revealed that Chinese Patent No. CN209620432U discloses a permanent composite thermal insulation external formwork for cast-in-place concrete. This utility model has mature design and construction technology, is easy to promote on a large scale, does not change the load-bearing structure of the frame (frame-shear wall), and the beams, columns and shear walls are still designed according to the current standards and specifications. The relevant standards and design software are complete, the construction technology is mature, and it is easy to promote and apply on a large scale.

[0005] However, in actual use, when multiple templates are spliced ​​together, the outer template is fixed to the outside of the concrete, and there is no good connection between the templates. After a long period of use, water seepage will occur in the joints between the templates, and the gaps will widen, affecting the performance of the template. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a permanent cast-in-place concrete composite thermal insulation formwork to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A permanent cast-in-place concrete composite thermal insulation formwork includes an outer shell, with a connecting mechanism on the outer side of the outer shell. The connecting mechanism includes an upper connecting plate, the bottom of which is fixedly connected to the top of the outer shell. Multiple limiting posts are fixedly connected to the top of the upper connecting plate. Two sealing strips are fixedly connected to the upper upper connecting plate's upper surface. Two slots and multiple slots are formed on the top of the upper connecting plate. A lower connecting plate is fixedly connected to the bottom of the outer shell. Multiple sealing strips and two sealing strips are fixedly connected to the inner side of the lower connecting plate. Multiple insertion holes are formed on the bottom of the lower connecting plate, with the inner side of each insertion hole interlocking with the outer side of the limiting posts. Multiple springs are fixedly connected to the inner side of the lower connecting plate, with a locking block fixedly connected to one side of each spring. The outer side of the locking block is slidably connected to the inner side of the lower connecting plate, and one end of the locking block is engaged with the outer side of the upper connecting plate. Multiple openings are formed on the outer side of the outer shell, and multiple connecting posts are fixedly connected to one side of the outer shell. A composite thermal insulation mechanism is provided on the inner side of the outer shell.

[0009] By adopting the above technical solution, the staggered splicing of the upper and lower connecting plates between different shells can maintain sufficient connection stability between multiple composite insulation templates. Furthermore, the use of multiple connecting columns increases the contact area during concrete pouring, ensuring that the shell remains sufficiently stable after assembly and pouring, thus preventing detachment.

[0010] As a further description of the above technical solution: the composite insulation mechanism includes an insulation layer disposed inside the outer shell. The insulation layer is made of polystyrene foam board. A fireproof layer made of rock wool is fixedly connected to one side of the insulation layer. A repair layer made of fly ash is fixedly connected to one side of the fireproof layer. A reinforcing layer made of wire mesh is fixedly connected to one side of the repair layer. A protective layer made of cement mortar is fixedly connected to the reinforcing layer. A cavity is formed inside the insulation layer, and multiple support columns are fixedly connected to the inside of the cavity.

[0011] By adopting the above technical solution, the insulation effect of the insulation layer can be improved by utilizing the cavity, and the repair layer can be used to fill the gaps when small gaps appear on the surface of the composite insulation template through a secondary hydration reaction with water and air, so that the gaps can be slowly filled, maintaining the good performance of the composite insulation template and improving its service life.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. By setting up a connection mechanism, compared with the existing technology, the interlocking between the upper and lower connecting plates allows multiple shells to be quickly aligned and connected. Furthermore, the staggered connection between sealing strip one, sealing strip three, and slot one ensures sufficient sealing at the joints between different shells. The connecting columns increase the contact area between the shell and the concrete, thereby improving the connection strength of the composite insulation template during assembly, preventing it from falling off, and enhancing overall stability.

[0014] 2. By setting up a composite insulation mechanism, compared with the existing technology, the cavity allows the insulation layer to form an additional air layer, which can effectively reduce heat conduction. Furthermore, by utilizing the secondary hydration reaction between the repair layer and water and air, the gaps inside the composite insulation template are slowly filled, reducing costs while increasing the service life of the composite insulation template. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0017] Figure 3 This is a partial schematic diagram of the connection between the outer shell and the connecting post of this utility model.

[0018] Figure 4 This is a partial schematic diagram of the connection between the lower connecting plate and the locking block of this utility model.

[0019] Figure 5 This is a partial schematic diagram of the connection between the upper connecting plate and the limiting post of this utility model.

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the insulation layer of this utility model.

[0021] Figure 7 This is the utility model Figure 1 An enlarged diagram of A in the diagram.

[0022] The attached diagram is labeled as follows: 1. Outer shell; 2. Upper connecting plate; 3. Limiting post; 4. Sealing strip one; 5. Slot one; 6. Slot two; 7. Lower connecting plate; 8. Sealing strip two; 9. Spring; 10. Locking block; 11. Sealing strip three; 12. Insertion hole; 13. Opening; 14. Connecting post; 15. Insulation layer; 16. Fireproof layer; 17. Repair layer; 18. Reinforcing layer; 19. Protective layer; 20. Cavity; 21. Support post. Detailed Implementation

[0023] 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.

[0024] The embodiments disclosed in this application are as follows: Figure 1-7 The permanent cast-in-place concrete composite thermal insulation formwork shown includes an outer shell 1, with a connecting mechanism on the outer side of the outer shell 1. The connecting mechanism includes an upper connecting plate 2, the bottom of which is fixedly connected to the top of the outer shell 1. Multiple limiting posts 3 are fixedly connected to the top of the upper connecting plate 2. Two sealing strips 4 are fixedly connected to the upper surface of the upper connecting plate 2. Two slots 5 and multiple slots 6 are opened on the top of the upper connecting plate 2. A lower connecting plate 7 is fixedly connected to the bottom of the outer shell 1. Multiple sealing strips 8 are fixedly connected to the inner side of the lower connecting plate 7. Two sealing strips 11 are fixedly connected to the bottom of the lower connecting plate 7. Multiple insertion holes 12 are opened on the bottom of the lower connecting plate 7. The inner side of the insertion holes 12 is inserted into the outer side of the limiting posts 3. Multiple springs 9 are fixedly connected to the inner side of the lower connecting plate 7. A locking block 10 is fixedly connected, with its outer side slidingly connected to the inner side of the lower connecting plate 7. One end of the locking block 10 is engaged with the outer side of the upper connecting plate 2. Multiple openings 13 are provided on the outer side of the outer shell 1, and multiple connecting posts 14 are fixedly connected to one side of the outer shell 1. A composite insulation mechanism is provided on the inner side of the outer shell 1. By utilizing the mutual engagement of the upper connecting plate 2 and the lower connecting plate 7 between different outer shells 1, the corresponding multiple limiting posts 3 are engaged with the insertion holes 12. Then, through the staggered sealing of the corresponding sealing strip 1 4, sealing strip 3 11, and slot 1 5, sufficient sealing is maintained at the connection between the upper connecting plate 2 and the lower connecting plate 7 between different outer shells 1. At the same time, the multiple connecting posts 14 increase the contact area with the concrete during the concrete pouring process, so that the composite insulation template maintains sufficient stability after installation.

[0025] Reference Figure 6 and Figure 7As shown, the composite insulation structure includes an insulation layer 15, which is disposed inside the outer shell 1. The insulation layer 15 is made of polystyrene foam board. A fireproof layer 16, made of rock wool, is fixedly connected to one side of the insulation layer 15. A repair layer 17, made of fly ash, is fixedly connected to one side of the fireproof layer 16. A reinforcing layer 18, made of wire mesh, is fixedly connected to one side of the reinforcing layer 17. A protective layer 19, made of cement mortar, is also fixedly connected to the reinforcing layer 18. A cavity 20 is provided inside the insulation layer 15, and multiple support columns 21 are fixedly connected inside the cavity 20. The cavity 20 is used to improve the insulation capacity of the insulation layer 15, the reinforcing layer 18 is used to improve the fire resistance of the composite insulation template, the repair layer 17 is used to fill the small gaps in the composite insulation template that may leak water by undergoing a secondary hydration reaction with water and air, and the reinforcing layer 18 is used to enhance the crack resistance and strength of the composite insulation template. Finally, the protective layer 19 is used to protect the insulation layer 15.

[0026] The working principle of this utility model is as follows: When installing the composite insulation template, one outer shell 1 is fixed to the outside of the main frame. The lower connecting plate 7 at the bottom of the other outer shell 1 is spliced ​​with the upper connecting plate 2 at the top of the first outer shell 1. Under the pressure and push of the upper connecting plate 2, the multiple locking blocks 10 on the inner side of the lower connecting plate 7 enter the interior of the lower connecting plate 7. After the lower connecting plate 7 and the upper connecting plate 2 are locked together, multiple springs 9 will push the corresponding locking blocks 10 to lock with the outer side of the limiting posts 3. At the same time, the multiple limiting posts 3 on the top of the upper connecting plate 2 will engage with the multiple insertion holes on the inner side of the lower connecting plate 7. 12. Insert the upper connecting plate 2 and the lower connecting plate 7 to complete the splicing. At the same time, the sealing strips 1 4 and 3 11 on the contact surfaces of the upper connecting plate 2 and the lower connecting plate 7 will be inserted into the corresponding slots 1 5. Then, the multiple sealing strips 2 8 on the inner side of the lower connecting plate 7 will fit against the multiple springs 9 on the top of the upper connecting plate 2, so that the connection between the upper connecting plate 2 and the lower connecting plate 7 remains tight. After the multiple composite thermal insulation templates are installed, when the main frame is poured with cement, the cement will wrap the multiple connecting columns 14 behind the shell 1, making the connection between the multiple shells 1 and the concrete more stable.

[0027] During the use of the composite thermal insulation template, the insulation effect of the insulation layer 15 is improved through the cavity 20 inside the insulation layer 15, and the structure of the insulation layer 15 is kept strong by multiple support columns 21. After long-term use, if small cracks appear inside the surface of the outer shell 1, water and air will come into contact with the repair layer 17 after passing through the protective layer 19 and the reinforcing layer 18. This will activate the secondary hydration reaction of the repair layer 17, and the generated hydration products will gradually fill the cracks, restore the density of the interior of the composite thermal insulation template, effectively repair the small cracks, and extend the service life of the composite thermal insulation template.

[0028] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A permanent cast-in-place concrete composite thermal insulation formwork, comprising an outer shell (1), characterized in that: A connecting mechanism is provided on the outer side of the outer shell (1); The connecting mechanism includes an upper connecting plate (2), the bottom of which is fixedly connected to the top of the outer shell (1), a plurality of limiting posts (3) are fixedly connected to the top of the upper connecting plate (2), two sealing strips (4) are fixedly connected to the upper surface of the upper connecting plate (2), two slots (5) are opened on the top of the upper connecting plate (2), and a plurality of slots (6) are opened on the top of the upper connecting plate (2). A composite insulation mechanism is provided on the inner side of the outer shell (1).

2. The permanent cast-in-place concrete composite thermal insulation formwork according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a lower connecting plate (7), and a plurality of sealing strips (8) are fixedly connected to the inner side of the lower connecting plate (7). Two sealing strips (11) are fixedly connected to the bottom of the lower connecting plate (7). A plurality of insertion holes (12) are opened at the bottom of the lower connecting plate (7), and the inner side of the insertion hole (12) is inserted into the outer side of the limiting post (3).

3. The permanent cast-in-place concrete composite thermal insulation formwork according to claim 2, characterized in that: Multiple springs (9) are fixedly connected to the inner side of the lower connecting plate (7). A locking block (10) is fixedly connected to one side of the spring (9). The outer side of the locking block (10) is slidably connected to the inner side of the lower connecting plate (7). One end of the locking block (10) is locked to the outer side of the upper connecting plate (2).

4. The permanent cast-in-place concrete composite thermal insulation formwork according to claim 1, characterized in that: The outer shell (1) has multiple openings (13) on its outer side, and multiple connecting posts (14) are fixedly connected to one side of the outer shell (1).

5. The permanent cast-in-place concrete composite thermal insulation formwork according to claim 1, characterized in that: The composite insulation mechanism includes an insulation layer (15), which is disposed inside the outer shell (1). The insulation layer (15) is made of polystyrene foam board. A fireproof layer (16) is fixedly connected to one side of the insulation layer (15). The fireproof layer (16) is made of rock wool. A repair layer (17) is fixedly connected to one side of the fireproof layer (16). The repair layer (17) is made of fly ash.

6. The permanent cast-in-place concrete composite thermal insulation formwork according to claim 5, characterized in that: The repair layer (17) is fixedly connected to a reinforcing layer (18) on one side. The reinforcing layer (18) is made of wire mesh. The reinforcing layer (18) is fixedly connected to a protective layer (19) made of cement mortar.

7. The permanent cast-in-place concrete composite thermal insulation formwork according to claim 5, characterized in that: The insulation layer (15) has a cavity (20) on its inner side, and multiple support columns (21) are fixedly connected to the inner side of the cavity (20).