Explosion-proof die bar

By forming a double-F snap-fit ​​stress structure within the template, the explosion-proof mold rods solve the problems of easy displacement of traditional tie rods and deformation of sleeves, achieving stable construction and recyclability of insulation boards, and reducing construction costs and repair difficulties.

CN117306851BActive Publication Date: 2026-07-21CHINA METALLURGICAL CONSTR ENG GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA METALLURGICAL CONSTR ENG GRP
Filing Date
2023-11-16
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the construction of integrated exterior wall insulation panels, traditional tie rods are prone to displacement, leading to formwork bursts, and sleeve deformation and corrosion cause leakage. Repairs are difficult and costly, and they are not easy to recycle, affecting construction quality and cost.

Method used

It adopts explosion-proof mold rods, and the double F buckle inside the mold is used to bear the force. It uses hook tie rods and sleeve structure to prevent the insulation board from bursting and can be recycled.

Benefits of technology

It effectively prevents insulation boards from bursting, reduces subsequent repair work, lowers construction costs, improves construction stability and recyclability, and saves construction time.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN117306851B_ABST
    Figure CN117306851B_ABST
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Abstract

The application discloses an anti-explosion mould rod piece, which comprises a screw rod, a hook rod, a sleeve and a fixing assembly, the screw rod passes through two sides of a mould plate through a hole of the mould plate; the hook rod is arranged on the screw rod and has a hook part which is used for abutting against the inner side of the mould plate; the sleeve is coaxially arranged outside the screw rod and is located at the inner side of two mould plates, and the screw rod can axially slide relative to the sleeve; and the fixing assembly is arranged on the screw rod and is used for abutting against the outer side of the mould plate. The anti-explosion mould rod piece forms double F buckle stress in the mould plate, prevents the explosion of the external wall integrated thermal insulation board, and is not easy to repair after the explosion of the external wall integrated thermal insulation board. The device controls in advance, avoids the quality problem, and can take out the rod piece for secondary use and environmental protection and energy saving.
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Description

Technical Field

[0001] This invention relates to the technical field of building construction, and in particular to an explosion-proof formwork member. Background Technology

[0002] Conventional exterior wall construction typically involves separate steps for formwork, insulation, and plastering. However, integrated insulation formwork combines these three steps in the factory, thus allowing for the direct integration of insulation and plastering compared to conventional methods.

[0003] However, during construction, the use of concrete blocks in conjunction with tie rods in conventional tie rod construction is prone to displacement during pouring. The formwork is also prone to bulging when poured inside the formwork. The integrated insulation board used in this project, with a thickness of ten centimeters, is even more susceptible to bulging. Furthermore, the sleeve is prone to deformation and corrosion during pouring, leading to leakage and formwork bursting. This makes it difficult to repair the bursting of the integrated insulation board during pouring, severely impacting construction quality. Repairing bursting of the integrated external wall insulation board is difficult, involves multiple steps, and the repair stability is not as strong as that of the poured and bonded material. In addition, traditional tie bolts are not easily recyclable, increasing construction costs.

[0004] Therefore, how to avoid membrane bursting, reduce the need for subsequent repairs of integrated insulation boards and interior walls, and enable secondary recycling and reuse are urgent technical problems that need to be solved. Summary of the Invention

[0005] In view of this, the present invention provides an explosion-proof mold rod, which uses the device to form a double F-shaped snap-fit ​​force in the mold, thereby achieving the effect of explosion-proof mold.

[0006] The explosion-proof mold rod provided by this invention adopts the following technical solution:

[0007] An explosion-proof mold rod includes:

[0008] The screw rod passes through the opening in the template and runs horizontally across both sides of the template.

[0009] A hooked tie rod is provided on a screw rod and has a hook portion for pressing against the inner side of the template.

[0010] A sleeve is coaxially sleeved on the outside of the screw, the sleeve is located inside the two templates, and the screw can slide axially relative to the sleeve;

[0011] A fixing component is provided on the screw and is used to abut against the outside of the template.

[0012] Optionally, the fixing component includes a sliding clip and a nut, the sliding clip being slidably fitted onto the screw rod, and the nut being threadedly connected to the screw rod, the nut being used to restrict the sliding clip from moving outward.

[0013] Optionally, a plug is provided on the screw, and there is a gap between the screw and the opening. The plug is used to seal the gap, and the sliding clamp applies an inward preload force to the plug in cooperation with the nut.

[0014] Optionally, the sliding card has a receiving portion for placing a rod, which, when located in the receiving portion, can abut against the outside of the template.

[0015] Optionally, the screw is provided with a mounting part, and the mounting part is provided with a driving member, and the hooked pull rod is slidably mounted on the mounting part through the driving member.

[0016] Optionally, the mounting part is provided with a fixing member, which is used to fix the hooked pull rod to the mounting part.

[0017] Optionally, the hooked pull rod is provided with multiple broken sections spaced apart along the axial direction of the screw, and the broken sections can be broken under force.

[0018] Optionally, the sleeve is radially retractable.

[0019] Optionally, the cannula includes a cannula body and an air bladder portion. The cannula body is disposed outside the air bladder portion, and the air bladder portion can be expanded by inflation, causing the cannula body to expand radially along the screw.

[0020] Optionally, the plug is provided with a protrusion that is adapted to the diameter of the opening. The plug and the protrusion have an inflation channel. When the plug is pressed against the outside of the template, the protrusion extends into the opening and the inflation channel communicates with the airbag.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects: the explosion-proof membrane rods form a double F-shaped snap-fit ​​force within the template, preventing the integrated exterior wall insulation board from bursting. After the integrated exterior wall insulation board bursts, it is not easy to repair. This device controls the process in advance to avoid such quality problems. Furthermore, the rods can be removed and reused, which is environmentally friendly and energy-saving. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is a partial structural schematic diagram of an embodiment of the present invention;

[0024] Figure 3 This is a side view of the sleeve according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Hooked pull rod; 2. Opening; 3. Sliding clip; 4. Driving component; 5. Fixing component; 6. Nut; 7. Protrusion; 8. Receiving part; 9. Plug; 10. Screw; 11. Sleeve; 111. Sleeve body; 112. Airbag part; 113. Inflatable part. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0027] This invention discloses an explosion-proof mold rod.

[0028] Reference Figure 1 , Figure 2 , Figure 3 An explosion-proof formwork rod includes a screw 10, a hooked tie rod 1, a sleeve 11, and a fixing assembly. The screw 10 passes through the opening 2 of the formwork and traverses both sides of the formwork. The hooked tie rod 1 is disposed on the screw 10 and has a hook portion for pressing against the inner side of the formwork. The sleeve 11 is coaxially sleeved on the outer side of the screw 10 and is located on the inner side of the two formwork panels. The screw 10 can slide axially relative to the sleeve 11. The fixing assembly is disposed on the screw 10 and is used to press against the outer side of the formwork. The explosion-proof formwork rod forms a double F-shaped snap-fit ​​force within the formwork to prevent the integrated external wall insulation board from bursting. Since the integrated external wall insulation board is difficult to repair after bursting, this device allows for pre-control to avoid such quality problems. Furthermore, the rod can be removed for reuse, which is environmentally friendly and energy-saving.

[0029] In this embodiment, the explosion-proof formwork rod is used for supporting and fixing the integrated thermal insulation formwork. The material involves three processes: formwork, insulation, and plastering; using this material reduces these three processes to a single step. The integrated thermal insulation formwork serves as the exterior wall formwork, and is cast together with concrete using plastic studs, forming an integrated construction process encompassing formwork, insulation, and plastering.

[0030] In this embodiment, the fixing component includes a sliding clip 3 and a nut 6. The sliding clip 3 is slidably fitted onto the screw 10, and the nut 6 is threadedly connected to the screw 10. The nut 6 is used to restrict the sliding clip 3 from moving outward.

[0031] In this embodiment, a plug 9 is provided on the screw 10. There is a gap between the screw 10 and the opening 2. The plug 9 is used to seal the gap. The sliding clip 3 applies an inward preload to the plug 9 in cooperation with the nut 6.

[0032] In this embodiment, the sliding card 3 has a receiving portion 8 for placing a rod. When the rod is located in the receiving portion 8, it can be pressed against the outside of the template. In this embodiment, the rod is a steel pipe. The steel pipe is placed in the receiving portion 8 so that it is pressed against the outside of the template, thereby improving the support effect of the template.

[0033] In this embodiment, the screw 10 is provided with a mounting portion, and a driving member 4 is provided on the mounting portion. The hooked pull rod 1 is slidably mounted on the mounting portion via the driving member 4. In this embodiment, the driving member 4 is a bolt, and the mounting portion has a sliding hole along the axial direction of the screw 10. The bolt restricts the hooked pull rod 1 within the sliding hole.

[0034] The hook is rotatably mounted on the hook-and-pull rod 1 via a rotating part. A torsion spring is installed at the rotating part and the hook-and-pull rod 1, which applies elastic force to the hook, creating an angle between the hook and the hook-and-pull rod 1, causing it to press against the inner side of the template. Sliding blocks are provided on both sides of the hook-and-pull rod 1 laterally. A sliding groove is provided on the mounting part along the axial direction of the screw 10, and the sliding blocks are slidably mounted in the sliding groove. The operator slides the hook-and-pull rod 1 using the drive component 4.

[0035] In this embodiment, a fixing member 5 is provided on the mounting part, which is used to fix the hooked pull rod 1 to the mounting part. In this embodiment, the fixing member 5 is a bolt, and the mounting part is used to fix the hooked pull rod 1 in the sliding hole, restricting its axial sliding.

[0036] The hooked pull rod 1 can be detached from the mounting part and fixed by the driving component 4 and the fixing component 5, which not only facilitates later replacement, but also provides fixed support for the hooked pull rod 1.

[0037] In this embodiment, the hook tie rod 1 has multiple broken sections spaced apart along the axial direction of the screw rod 10. These broken sections can be broken under force. In this embodiment, the broken sections are grooves formed on the hook tie rod 1, and their thickness is thinner than the unbroken sections. After the concrete pouring is completed, the screw rod 10 and the sliding clip 3, nut 6, and plug 9 installed on the screw rod 10 are removed. The hook tie rod 1 extending outside the template is then broken through the broken sections, completing the overall disassembly. When supporting the template again, only the hook tie rod 1 needs to be replaced.

[0038] In this embodiment, the sleeve 11 is radially expandable. Specifically, the sleeve 11 includes a sleeve body 111 and an air bladder 112. The sleeve body 111 is disposed outside the air bladder 112. The air bladder 112 can be expanded by inflation, causing the sleeve body 111 to expand radially along the screw 10.

[0039] In this embodiment, the cannula body 111 includes a fixed part and a sliding part, which are circumferentially closed to form a ring. The sliding part is slidably fitted onto the fixed part. After the airbag part 112 is inflated, the sliding part slides out from the fixed part, thereby increasing the overall size of the cannula body 111.

[0040] In this embodiment, the diameter of the opening 2 of the template is larger than the diameter of the screw 10.

[0041] In this embodiment, the plug 9 is provided with a protrusion 7, which is adapted to the diameter of the opening 2. The plug 9 and the protrusion 7 have an inflation channel. When the plug 9 is pressed against the outside of the template, the protrusion 7 extends into the opening 2, and the inflation channel communicates with the airbag part 112. The inflation channel located in the plug 9 has a sealing element, which is used to seal the inflation channel and effectively prevent gas from escaping from the inflation channel at the plug 9. The airbag part 112 has an inflation port, which is made of elastic material. The inflation channel located in the protrusion 7 has an inflation needle, which is inserted into the inflation port for inflation. After the two are separated, the inflation port automatically closes.

[0042] In this embodiment, the protrusion 7 seals the opening, effectively preventing concrete from blocking the opening when the formwork is removed, which would otherwise require a second removal of the formwork at the opening. This achieves both inflation of the airbag 112 and ensures the flatness of the concrete pouring.

[0043] During inflation, the outer surface of the sleeve body 111 abuts against the hooked rod 1, indicating that the inflation is complete. When inflation is released, the sleeve body 111 provides auxiliary support to the bottom of the hooked rod 1, improving the overall support effect.

[0044] This invention employs a double-locking mechanism between the integrated insulation and the inner and outer sides of the formwork, ensuring that the integrated insulation is stressed on both sides and cannot be moved to either side. Compared to traditional integrated insulation construction methods, this results in better stability, lower post-construction repair costs, and wider applicability. It significantly reduces the need for subsequent interior and exterior wall repairs, saving construction time. The construction is simple, energy-efficient, and environmentally friendly, while also shortening the post-construction repair period and reducing subsequent exterior wall work.

[0045] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An explosion-proof mold rod, characterized in that: include: The screw rod passes through the opening in the template and runs horizontally across both sides of the template. A hooked tie rod is provided on a screw rod. The hooked tie rod has a hook portion for pressing against the inner side of the template. The hooked tie rod has multiple broken portions spaced apart along the axial direction of the screw rod. The broken portions can be broken under force. A sleeve is coaxially sleeved on the outside of the screw. The sleeve is located inside the two templates. The screw can slide axially relative to the sleeve. The sleeve is radially expandable and retractable. The sleeve includes a sleeve body and an air bladder. The sleeve body is located outside the air bladder. The air bladder can be expanded by inflation, causing the sleeve body to expand radially along the screw. A fixing component, which is disposed on the screw and used to abut against the outside of the template; The screw is provided with a plug, the plug is provided with a protrusion, the protrusion is adapted to the diameter of the opening, the plug and the protrusion have an inflation channel, and when the plug is pressed against the outside of the template, the protrusion extends into the opening and the inflation channel communicates with the airbag.

2. The explosion-proof mold rod according to claim 1, characterized in that: The fixing component includes a sliding clip and a nut. The sliding clip is slidably fitted onto the screw rod, and the nut is threaded onto the screw rod. The nut is used to restrict the sliding clip from moving outward.

3. The explosion-proof mold rod according to claim 2, characterized in that: There is a gap between the screw and the opening, and the plug is used to seal the gap. The sliding clamp, in cooperation with the nut, applies an inward preload force to the plug.

4. The explosion-proof mold rod according to claim 2, characterized in that: The sliding card has a receiving portion for placing the rod, which can abut against the outside of the template when the rod is located in the receiving portion.

5. The explosion-proof mold rod according to claim 1, characterized in that: The screw is provided with a mounting part, and the mounting part is provided with a driving component. The hooked pull rod is slidably mounted on the mounting part through the driving component.

6. The explosion-proof mold rod according to claim 5, characterized in that: The mounting section is provided with a fixing component, which is used to fix the hooked pull rod to the mounting section.