FS heat preservation outer formwork positioning structure

By introducing a combined structure of support back ribs, tie bolts, anchor rods, and positioning plates into the FS insulation outer formwork, the problem of easy separation between the formwork and the concrete structure is solved, achieving a more stable positioning effect and improving installation accuracy and stability.

CN224200090UActive Publication Date: 2026-05-05CHONGQING XINZHOU ARCHITECTURE ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING XINZHOU ARCHITECTURE ENG CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing FS insulation external formwork has poor positioning and installation effect, and is prone to peeling from the formwork to the concrete structure. This is mainly due to the small and dispersed force points of the anchors, resulting in insufficient adhesion.

Method used

The structure includes insulation boards, support back ribs, tie bolts, anchor rods, and positioning plates. The insulation boards are tightened by tie bolts, and the anchor rods are inserted into the wall and connected to the positioning plates to increase the stress area. After the concrete reaches the design strength, the tie bolts are removed, and the combination of anchor rods and positioning plates enhances stability.

Benefits of technology

It enhances the stability and positioning effect of FS thermal insulation external formwork on the external wall concrete structure, ensuring that the formwork is not easily detached during the pouring process, and improving the stability and accuracy of installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an FS heat preservation outer formwork positioning structure, and belongs to the field of outer wall heat preservation, the FS heat preservation outer formwork positioning structure comprises heat preservation plates, supporting back ridges, split bolts, anchor rods and positioning plates, the heat preservation plates are arranged on the two sides of a wall body respectively, and the supporting back ridges are arranged on the sides, away from wall body steel bars, of the heat preservation plates; the split bolts are arranged on the supporting back arris and used for tensioning the heat preservation plates on the two sides of the wall body, the anchor rods are arranged on the heat preservation plates and penetrate into the wall body, the positioning plates are arranged on the anchor rods and connected with the adjacent anchor rods, and the positioning plates abut against the heat preservation plates. The FS heat preservation outer formwork has the advantages that the stress area of the heat preservation plate anchored on the wall through the anchor rod is increased, the stability of the heat preservation plate on the wall is improved, and then the positioning effect of the FS heat preservation outer formwork on an outer wall concrete structure is improved.
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Description

Technical Field

[0001] This application relates to the field of external wall insulation, and in particular to a positioning structure for FS insulation external formwork. Background Technology

[0002] Building exterior wall insulation technology is one of the important measures for building energy conservation. Among them, FS insulation formwork is widely used due to its excellent insulation performance and convenient construction without dismantling. With the continuous improvement of building energy conservation standards, the requirements for the installation accuracy and stability of insulation formwork are also getting higher and higher.

[0003] Currently, the positioning and installation of FS thermal insulation external formwork mainly involves positioning and anchoring using tie bolts and anchors. After the reinforcement is tied, the FS thermal insulation external formwork is installed, and then the tie bolts are passed through the holes in the FS thermal insulation external formwork. The tie bolts are used to tighten the FS thermal insulation external formwork onto the back ribs that reinforce the FS thermal insulation external formwork, thereby achieving the positioning of the FS thermal insulation external formwork. Then, the anchors are passed through the FS thermal insulation external formwork. After the concrete is poured, the tie bolts and back ribs are removed, and the anchors can then anchor the FS thermal insulation external formwork to the external wall concrete structure.

[0004] However, the anchor points for anchoring the FS insulation outer formwork are small and dispersed. When the adhesion between the FS insulation outer formwork and the concrete structure is insufficient, the FS insulation outer formwork that is far from the anchors is prone to peeling off from the concrete structure, resulting in poor positioning and installation of the FS insulation outer formwork. Utility Model Content

[0005] In order to improve the positioning effect of FS thermal insulation external formwork on external wall concrete structures, this application provides an FS thermal insulation external formwork positioning structure.

[0006] The technical solution for the FS thermal insulation outer formwork positioning structure provided in this application is as follows:

[0007] A positioning structure for FS thermal insulation external formwork includes an insulation board, a support back rib, tie bolts, anchor rods, and a positioning plate. One insulation board is provided on each side of the wall. The support back rib is provided on the side of the insulation board away from the wall reinforcement. The tie bolts are provided on the support back rib and used to tighten the insulation boards on both sides of the wall. Multiple anchor rods are provided on the insulation board and pass through the wall. The positioning plate is provided on the anchor rods and connected to adjacent anchor rods, and the positioning plate abuts against the insulation board.

[0008] By adopting the above technical solution, after the wall reinforcement is tied, the insulation boards are placed on both sides of the wall. The support back brace is installed on the side of the insulation board away from the wall reinforcement. The insulation boards on both sides of the wall are tightened by tie bolts, and the anchor rods are passed through the insulation boards and into the wall, so that the positioning plate is pressed against the insulation board. Concrete can then be poured into the wall. After the concrete reaches the design strength, the tie bolts and support back brace are removed. The anchor rods anchored in the wall support the insulation board and the positioning plate, so that the positioning plate presses against the insulation board, increasing the stress area of ​​the anchor rods anchoring the insulation board to the wall, improving the stability of the insulation board on the wall, and thus improving the positioning effect of the FS insulation external formwork on the external wall concrete structure.

[0009] Optionally, the positioning plate includes a support sleeve and a connecting plate. The support sleeve is rotatably fitted onto the anchor rod, and the connecting plate is slidably inserted into the support sleeve. The connecting plate has a notch for adjacent anchor rods to be inserted into.

[0010] By adopting the above technical solution, the construction workers rotate the positioning plate so that the connecting plate rotates onto the adjacent anchor rod. The adjacent anchor rod is then engaged through the notch on the connecting plate, thus connecting the positioning plate to the adjacent anchor rod and improving the stability of the positioning plate in positioning the insulation board on the wall.

[0011] Optionally, the connecting plate is flush with the side of the support sleeve closest to the insulation board.

[0012] By adopting the above technical solution, the connecting plate and support sleeve that are flush with the side close to the insulation board can be better pressed against the insulation board, reducing the possibility of the insulation board detaching from the wall.

[0013] Optionally, the connecting plate is provided with a misalignment plate, the distance between the misalignment plate and the insulation plate is greater than the thickness of the support sleeve, and the notch is formed on the misalignment plate.

[0014] By adopting the above technical solution, the misalignment plate and the connecting plate are offset in the direction towards the insulation board, so that when the support sleeve drives the connecting plate to rotate towards the adjacent anchor rod, the anchor rod can easily be inserted into the notch on the misalignment plate, improving the convenience of connecting the positioning plate with the adjacent anchor rod.

[0015] Optionally, the misalignment plate is provided with an inclined surface for pressing the support sleeve toward the direction of the insulation board.

[0016] By adopting the above technical solution, when adjacent anchor rods are inserted into the notches on the misalignment plate, the inclined surface of the misalignment plate presses the support sleeve on the adjacent anchor rod toward the direction of the insulation board, so that the support sleeve always presses the insulation board toward the wall, thereby improving the stability of the insulation board adhering to the wall.

[0017] Optionally, the anchor bolt includes an anchor nail and an expansion sleeve, the anchor nail being threaded through the expansion sleeve, and the expansion sleeve extending through the insulation board into the wall.

[0018] By adopting the above technical solution, before pouring the wall concrete, the construction workers insert the anchors into the insulation board. After the concrete is poured, the anchors are threaded onto the expansion sleeve and screwed into the wall. The anchors can expand the expansion sleeve inside the wall, improving the stability of the anchor rod on the wall. At the same time, the anchors can also squeeze the misaligned plate towards the insulation board, ensuring the tightness of the connecting plate and the support sleeve against the insulation board.

[0019] Optionally, the support back ribs include vertical back ribs and horizontal back ribs, the vertical back ribs being spaced abutting against the insulation board, and the horizontal back ribs being spaced abutting against the vertical back ribs in a direction perpendicular to the vertical back ribs.

[0020] By adopting the above technical solution, the vertical and horizontal back ribs arranged perpendicular to each other will apply the tensioning force of the tie bolts to the insulation board more evenly, thereby improving the stability of the insulation board during the concrete pouring process.

[0021] Optionally, the tie bolt includes a screw, an abutment block, and a nut. The screw passes through the insulation board, the abutment block is slidably disposed on the screw and abuts against the transverse back rib, and the nut is threaded on the screw and abuts against the abutment block.

[0022] By adopting the above technical solution, the construction workers pass the screw through the insulation boards on both sides of the wall, then slide the abutment block to abut against the horizontal back rib, and then screw the nut onto the screw so that the nut abuts against the abutment block, which drives the abutment block to abut against the horizontal back rib, thereby tightening the insulation boards on both sides of the wall.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. Increase the stress-bearing area of ​​the anchor bolts to anchor the insulation board to the wall, improve the stability of the insulation board on the wall, and thus improve the positioning effect of the FS insulation outer formwork on the outer wall concrete structure;

[0025] 2. The inclined surface on the misalignment plate presses the support sleeve on the adjacent anchor rod towards the direction of the insulation board, so that the support sleeve always presses the insulation board against the wall, thereby improving the stability of the insulation board against the wall.

[0026] 3. The anchor nails can expand the expansion sleeve inside the wall, improving the stability of the anchor rod on the wall. At the same time, the anchor nails can also squeeze the misaligned plate towards the insulation board, ensuring the tightness of the connecting plate and the support sleeve against the insulation board. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the FS thermal insulation outer template positioning structure according to an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the tie bolt structure according to an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of the connection structure of adjacent anchor rods in an embodiment of this application.

[0030] Reference numerals in the attached diagram: 1. Insulation board; 2. Support back rib; 21. Vertical back rib; 22. Horizontal back rib; 3. Tie bolt; 31. Threaded rod; 32. Abutment block; 33. Nut; 4. Anchor bolt; 41. Anchor nail; 42. Expansion sleeve; 5. Positioning plate; 51. Support sleeve; 52. Connecting plate; 6. Notch; 7. Misalignment plate; 8. Inclined surface. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] This application discloses a positioning structure for an FS thermal insulation outer template.

[0033] Reference Figure 1 The FS insulation external formwork positioning structure includes an insulation board 1, a support back rib 2, tie bolts 3, anchor rods 4, and a positioning plate 5. One insulation board 1 is installed on each side of the wall reinforcement. In this embodiment, the insulation board 1 is the FS insulation external formwork, and multiple positioning ribs are pre-embedded along the wall on the concrete slab on the side of the insulation board 1 closest to the wall reinforcement, which makes the position of the insulation board 1 more accurate during installation and can support the insulation board 1.

[0034] Reference Figure 1 The support back rib 2 is installed on the side of the insulation board 1 away from the wall reinforcement. The support back rib 2 includes vertical back rib 21 and horizontal back rib 22. In this embodiment, the vertical back rib 21 is a wooden block and the horizontal back rib 22 is a steel pipe. Multiple vertical back ribs 21 abut against the outer template of the insulation along the length of the wall. The horizontal back ribs 22 abut against the vertical back rib 21 in pairs along the height of the wall.

[0035] Reference Figure 1 , Figure 2The tie bolt 3 is installed on the support back rib 2. The tie bolt 3 is used to tighten the insulation boards 1 on both sides of the wall. The tie bolt 3 includes a screw 31, abutment block 32 and nut 33. In this embodiment, PVC pipes are installed on the wall and the insulation board 1. The screw 31 is installed in the PVC pipe, so that the screw 31 can be installed on the insulation board 1 on both sides of the wall and the wall, which is convenient to remove the screw 31 after the subsequent pouring of wall concrete. Abutment block 32 is slidably sleeved on both sides of the screw 31, and nut 33 is threaded on both sides of the screw 31. The nut 33 presses the abutment block 32 against the transverse back rib 22.

[0036] After the insulation board 1 is positioned and installed, the screw 31 is passed through the insulation board 1 and through the wall. Then, a stop block 32 is slidably fitted at both ends of the screw 31, and then the nut 33 is tightened so that the nut 33 presses the stop block 32 against the horizontal back rib 22. The horizontal back rib 22 then transmits the pressing force to the insulation board 1 through multiple vertical back ribs 21, which can tighten and position the insulation board 1 on both sides of the wall. The vertical back ribs 21 are vertically spaced on the insulation board 1, and the horizontal back ribs 22 are horizontally spaced to press against the vertical back ribs 21, so that the force is more evenly distributed to press the insulation board 1 firmly, which improves the stability of the insulation board 1 during the pouring of wall concrete and ensures the pouring effect.

[0037] Reference Figure 1 , Figure 3 Anchor rods 4 are installed on the insulation board 1 in multiple ways. Anchor rods 4 include anchor nails 41 and expansion sleeves 42. Anchor nails 41 are threaded through the expansion sleeves 42. The expansion sleeves 42 pass through the insulation board 1 and extend into the interior of the wall. Deformation slots are provided on the expansion sleeves 42 so that the expansion sleeves 42 are expanded when the anchor nails 41 are inserted into the expansion sleeves 42.

[0038] When installing the insulation board 1, first pass the expansion sleeve 42 through the insulation board 1 and into the wall. After the wall concrete is poured, screw the anchor 41 into the expansion sleeve 42. During the screwing process, the anchor 41 will push the expansion sleeve 42 open, so that the expansion sleeve 42 will be tightened in the wall concrete, thereby improving the stability of the anchor rod 4 in positioning the insulation board 1 on the wall.

[0039] Reference Figure 1 , Figure 3The positioning plate 5 is installed on the anchor rod 4 and abuts against the side of the insulation board 1 away from the wall. The positioning plate 5 is connected to the adjacent anchor rod 4. The positioning plate 5 includes a support sleeve 51 and a connecting plate 52. The support sleeve 51 is rotatably sleeved on the expansion sleeve 42. The positioning plate 5 is slidably inserted into the support sleeve 51. The support sleeve 51 has openings on both the side near the connecting plate 52 and the side near the wall, so that the side of the connecting plate 52 near the wall is flush with the side of the support sleeve 51 near the wall. A misalignment plate 7 is installed at the end of the connecting plate 52 away from the support sleeve 51. The distance between the misalignment plate 7 and the insulation board 1 is greater than that between the support sleeve 51 and the support sleeve 52. The thickness is 1. The misalignment plate 7 has a notch 6 for the adjacent expansion sleeve 42 to be inserted into. The misalignment plate 7 has an inclined surface 8 on the side facing the wall and close to the adjacent anchor rod 4. The inclined surface 8 is used to press the support sleeve 51 toward the direction close to the insulation board 1 when the adjacent expansion sleeve 42 is inserted into the notch 6 on the misalignment plate 7. In this embodiment, the vertical back rib 21 has multiple through slots, so that after the positioning plate 5 is connected to the adjacent expansion sleeve 42, when the vertical back rib 21 is installed, the positioning plate 5 can be inserted into the through slots on the vertical back rib 21, so that the vertical back rib 21 can be fitted to the insulation board 1 for installation.

[0040] After the expansion sleeve 42 is inserted onto the insulation board 1, the support sleeve 51 is fitted onto the expansion sleeve 42, and the connecting plate 52 is pulled out from the support sleeve 51, or the connecting plate 52 is locked into the support sleeve 51. The length of the positioning plate 5 is adjusted so that the length of the positioning plate 5 matches the distance between the adjacent expansion sleeves 42. Then, the support sleeve 51 is rotated, which drives the connecting plate 52 and the misalignment plate 7 to rotate closer to the adjacent expansion sleeve 42. The adjacent expansion sleeve 42 can then be engaged through the notch 6 opened on the misalignment plate 7, thereby achieving positioning. The connection between plate 5 and adjacent anchor rod 4 improves the convenience and stability of connecting positioning plate 5 and adjacent anchor rod 4. After the wall is poured and the tie bolts 3 and support back ribs 2 are removed, the anchor nail 41 is screwed into the expansion sleeve 42. The head of the anchor nail 41 presses against the misaligned plate 7, and the inclined surface 8 on the misaligned plate 7 presses against the support sleeve 51, so that the support sleeve 51 and the connecting plate 52 are pressed against the insulation board 1. The support sleeve 51 and the connecting plate 52 press against the insulation board 1, improving the stability of the insulation board 1 sticking to the wall.

[0041] The implementation principle of the FS insulation external formwork positioning structure in this application embodiment is as follows: After the wall reinforcement is tied, the insulation board 1 is installed at the set positions on both sides of the wall. The expansion sleeve 42 is passed through the insulation board 1 and extends into the wall. Then, the support sleeve 51 is fitted onto the expansion sleeve 42. The length of the connecting plate 52 extending out of the support sleeve 51 is adjusted. The support sleeve 51 is rotated so that the adjacent expansion sleeve 42 is engaged with the notch 6 on the misalignment plate 7. Then, the support back rib 2 is installed on the side of the insulation board 1 away from the wall. The insulation boards on both sides of the wall are secured by the tie bolts 3. 1. Tighten the tensioning rod to position the insulation board 1, and then pour concrete into the wall. After the concrete has formed, remove the tie bolts 3 and the support back ribs 2, and then screw the anchor nails 41 into the expansion sleeves 42, so that the expansion sleeves 42 are tightened in the concrete of the wall. At the same time, the head of the anchor nails 41 makes the support sleeves 51 and the connecting plate 52 press against the insulation board 1, increasing the force-bearing area of ​​the anchor rods 4 anchoring the insulation board 1 to the wall, improving the stability of the insulation board 1 on the wall, and thus improving the positioning effect of the FS insulation outer formwork on the outer wall concrete structure.

[0042] 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 positioning structure for an FS thermal insulation outer template, characterized in that: The wall includes an insulation board (1), a support back rib (2), tie bolts (3), anchor rods (4), and a positioning plate (5). The insulation board (1) is provided on both sides of the wall. The support back rib (2) is provided on the side of the insulation board (1) away from the wall reinforcement. The tie bolts (3) are provided on the support back rib (2) and are used to tighten the insulation boards (1) on both sides of the wall. Multiple anchor rods (4) are provided on the insulation board (1) and pass through the wall. The positioning plate (5) is provided on the anchor rod (4) and connected to the adjacent anchor rod (4). The positioning plate (5) is pressed against the insulation board (1).

2. The FS thermal insulation outer template positioning structure according to claim 1, characterized in that: The positioning plate (5) includes a support sleeve (51) and a connecting plate (52). The support sleeve (51) is rotatably sleeved on the anchor rod (4), and the connecting plate (52) is slidably inserted on the support sleeve (51). The connecting plate (52) has a notch (6) for adjacent anchor rods (4) to be inserted.

3. The FS thermal insulation outer template positioning structure according to claim 2, characterized in that: The connecting plate (52) and the support sleeve (51) are flush with the side of the insulation board (1).

4. The FS thermal insulation outer template positioning structure according to claim 2, characterized in that: The connecting plate (52) is provided with a misalignment plate (7), the distance between the misalignment plate (7) and the insulation plate (1) is greater than the thickness of the support sleeve (51), and the notch (6) is opened on the misalignment plate (7).

5. The FS thermal insulation outer template positioning structure according to claim 4, characterized in that: The misalignment plate (7) is provided with an inclined surface (8) for pressing the support sleeve (51) towards the insulation plate (1).

6. The FS thermal insulation outer template positioning structure according to claim 1, characterized in that: The anchor rod (4) includes an anchor (41) and an expansion sleeve (42). The anchor (41) is threaded onto the expansion sleeve (42), and the expansion sleeve (42) extends through the insulation board (1) into the wall.

7. The FS thermal insulation outer template positioning structure according to claim 1, characterized in that: The support back rib (2) includes a vertical back rib (21) and a horizontal back rib (22). The vertical back rib (21) is spaced abutting against the insulation board (1), and the horizontal back rib (22) is spaced abutting against the vertical back rib (21) in a direction perpendicular to the vertical back rib (21).

8. The FS thermal insulation outer template positioning structure according to claim 7, characterized in that: The tie bolt (3) includes a screw (31), an abutment block (32) and a nut (33). The screw (31) is mounted on the insulation board (1). The abutment block (32) is slidably mounted on the screw (31) and abuts against the transverse back rib (22). The nut (33) is threaded onto the screw (31) and abuts against the abutment block (32).