Rebar formwork dismounting device

By designing a rebar formwork dismantling device, which utilizes a combination of support rollers and threaded rods, the problems of low efficiency and insufficient support in traditional pry bar dismantling are solved, achieving efficient and safe dismantling of the formwork.

CN224266436UActive Publication Date: 2026-05-22SHAANXI YUANTAI XINGAN CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI YUANTAI XINGAN CONSTR ENG CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Traditional homemade crowbars are inefficient for dismantling building formwork and lack effective support points, resulting in irregular and destructive dismantling processes.

Method used

Design a rebar formwork dismantling device, including a connecting rod, a connecting rod, a gripping rod, a dismantling support frame, and a dismantling bracket. Through threaded connection and positioning welding combination, and with the cooperation of support rollers and threaded rods, the formwork can be easily pried open.

Benefits of technology

It improves the efficiency and safety of template disassembly, ensures the disassembly process is standardized, and reduces template damage and misalignment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel bar formwork dismounting device which comprises a butt-joint rod, a connecting rod, a holding rod, a forcible entry supporting frame and a forcible entry support, the butt-joint rod, the connecting rod and the holding rod are installed in a threaded screwing mode according to the sequence of top, middle and bottom, and the forcible entry supporting frame and the forcible entry support at the top of the butt-joint rod are installed in a positioned welding mode according to the sequence of top and bottom. The design of the device is suitable for the dismounting operation of the building template, the connecting rod and the holding rod are held by hand to operate the circular truncated cone-shaped dismounting rod or the hexagonal dismounting rod of the dismounting bracket to impact the wooden template, the dismounting rod is inserted into the template, and at the moment, the connecting rod is lifted up to pry the wooden template; the supporting roller makes contact with the wooden formwork to serve as a rolling fulcrum, the connecting rod can continue to prize at an arc angle conveniently, the threaded rod abuts against the wooden formwork to form a new supporting point after prizing by a certain radian, at the moment, the connecting rod is lifted up to prize the wooden formwork easily, and the supporting roller conducts arc guiding and supporting in the prizing process. The threaded rod is used as a tilted final structure support, and the height of the threaded rod can be adjusted through the threaded sleeve.
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Description

Technical Field

[0001] This utility model relates to a rebar formwork dismantling device, belonging to the field of building equipment technology. Background Technology

[0002] Formwork removal is a crucial step in building construction, and its standardized requirements are essential for ensuring construction quality, safety, and efficiency. The following are common standard requirements for formwork removal: Formwork removal must be carried out according to design drawings and technical requirements to ensure no damage or misalignment occurs during the removal process; appropriate tools and equipment, such as steel hammers, electric hammers, and crowbars, must be used. These tools must meet safety, practicality, and comfort requirements and must be inspected and maintained before use; formwork removal should be carried out in a reasonable dismantling sequence, typically from top to bottom and from inside to outside. Traditional formwork dismantling often uses homemade crowbars, which involve forceful demolition, lack a support point at the top, and have low efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a rebar formwork dismantling device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a rebar formwork dismantling device, comprising a connecting rod, a gripping rod, a dismantling support frame, and a dismantling bracket. The connecting rod, the connecting rod, and the gripping rod are screwed together in an upper, middle, and lower order. The dismantling support frame and the dismantling bracket at the top of the connecting rod are positioned and welded together in an upper and lower order.

[0005] Preferably, the outer layer of the grip bar is fitted with an anti-slip rubber sleeve.

[0006] Preferably, the demolition support is composed of a trapezoidal main board, a frustum-shaped demolition rod, a central crossbar, and a hexagonal demolition rod. The central crossbar is positioned and welded to the top of the trapezoidal main board, and the frustum-shaped demolition rod and the hexagonal demolition rod are welded to both sides of the central crossbar.

[0007] Preferably, the demolition support frame consists of a horizontal plate, a mounting frame, a positioning block, a support roller, a threaded rod, and a threaded sleeve. The mounting frame is welded to the top of the horizontal plate, and the threaded sleeve is welded to the left and right ends of the mounting frame through the positioning block. The threaded sleeve is threadedly connected to the threaded rod and screwed on. The support roller is welded to the front of the mounting frame.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: The demolition support is composed of a trapezoidal main plate, a frustum-shaped demolition rod, a central crossbar, and a hexagonal demolition rod. The demolition support frame is composed of a cross plate, a mounting frame, a positioning block, a support roller, a threaded rod, and a threaded sleeve. By holding the connecting rod and gripping the rod, the frustum-shaped or hexagonal demolition rod of the demolition support impacts the wooden template. The demolition rod inserts into the template. At this time, the connecting rod is lifted to pry open the wooden template. The support roller contacts the wooden template as a rolling fulcrum, which facilitates the connecting rod to continue prying at an arc angle. After prying a certain arc, the threaded rod presses against the wooden template to form a new support point. At this time, the connecting rod is lifted to easily pry open the wooden template. The support roller provides arc-shaped guidance and support during the prying process, and the threaded rod provides the final structural support for the tilting. Its height can be adjusted by the threaded sleeve. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the rebar formwork dismantling device of this utility model;

[0010] Figure 2 This is a schematic diagram of the installation structure of the rebar formwork dismantling device of this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the demolition support of this utility model;

[0012] Figure 4 This is a schematic diagram of the structure of the dismantling support frame of this utility model.

[0013] In the diagram: 1. Connecting rod, 2. Connecting rod, 3. Holding rod, 4. Demolition support frame, 5. Demolition bracket, 6. Trapezoidal main plate, 7. Frustum-shaped demolition rod, 8. Central crossbar, 9. Hexagonal demolition rod, 10. Horizontal plate, 11. Mounting bracket, 12. Positioning block, 13. Support roller, 14. Threaded rod, 15. Threaded sleeve. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] like Figures 1-4 As shown, a rebar formwork dismantling device includes a connecting rod 1, a connecting rod 2, a gripping rod 3, a dismantling support frame 4, and a dismantling bracket 5. The connecting rod 1, the connecting rod 2, and the gripping rod 3 are screwed together in the order of top, middle, and bottom. The dismantling support frame 4 and the dismantling bracket 5 at the top of the connecting rod 1 are positioned and welded together in the order of top and bottom.

[0016] The grip bar 3 is fitted with an anti-slip rubber sleeve on the outside, which has excellent anti-slip performance.

[0017] The demolition support 5 consists of a trapezoidal main board 6, a frustum-shaped demolition rod 7, a central crossbar 8, and a hexagonal demolition rod 9. The central crossbar 8 is welded to the top of the trapezoidal main board 6, and the frustum-shaped demolition rod 7 and the hexagonal demolition rod 9 are welded to both sides of the central crossbar 8. The frustum-shaped demolition rod 7 or the hexagonal demolition rod 9 impacts the wooden template, and the demolition rod is inserted into the template.

[0018] The demolition support frame 4 consists of a horizontal plate 10, a mounting frame 11, a positioning block 12, a support roller 13, a threaded rod 14, and a threaded sleeve 15. The mounting frame 11 is welded to the top of the horizontal plate 10. The threaded sleeve 15 is welded to the left and right ends of the mounting frame 11 through the positioning block 12. The threaded sleeve 15 is threadedly connected to the threaded rod 14. The support roller 13 is welded to the front of the mounting frame 11. When the lifting connecting rod 2 pryes the wooden template, the support roller 13 contacts the wooden template as a rolling fulcrum, which facilitates the connecting rod 3 to continue prying at an arc angle. After prying a certain arc, the threaded rod 14 presses against the wooden template to form a new support point. At this time, the lifting connecting rod 3 can easily pry open the wooden template. The support roller 13 provides arc-shaped guidance and support during the prying process, and the threaded rod 14 provides the final structural support for the tilting. Its height can be adjusted by the threaded sleeve 15.

[0019] Specific usage: A rebar formwork dismantling device. This device is designed for dismantling building formwork. The hand-held connecting rod and gripping rod operate the frustum-shaped or hexagonal dismantling rod of the dismantling bracket to impact the wooden formwork. The dismantling rod inserts into the formwork. At this time, the lifting connecting rod pryes the wooden formwork. The support roller contacts the wooden formwork as a rolling fulcrum, allowing the connecting rod to continue prying at an arc angle. After prying a certain arc, the threaded rod presses against the wooden formwork to form a new support point. At this time, the lifting connecting rod easily pries open the wooden formwork. The support roller provides arc-shaped guidance and support during the prying process, and the threaded rod provides the final structural support for the lifting. Its height can be adjusted by the threaded sleeve.

[0020] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A rebar formwork dismantling device, characterized in that, The assembly includes a connecting rod (1), a connecting rod (2), a gripping rod (3), a demolition support frame (4), and a demolition bracket (5). The connecting rod (1), the connecting rod (2), and the gripping rod (3) are screwed together in the order of top, middle, and bottom. The demolition support frame (4) and the demolition bracket (5) at the top of the connecting rod (1) are positioned and welded together in the order of top and bottom.

2. The rebar formwork dismantling device according to claim 1, characterized in that: The grip (3) is covered with an anti-slip rubber sleeve.

3. The rebar formwork dismantling device according to claim 1, characterized in that: The demolition support (5) consists of a trapezoidal main board (6), a frustum-shaped demolition rod (7), a central crossbar (8), and a hexagonal demolition rod (9). The central crossbar (8) is welded to the top of the trapezoidal main board (6), and the frustum-shaped demolition rod (7) and the hexagonal demolition rod (9) are welded to both sides of the central crossbar (8).

4. The rebar formwork dismantling device according to claim 1, characterized in that: The demolition support frame (4) consists of a horizontal plate (10), a mounting frame (11), a positioning block (12), a support roller (13), a threaded rod (14), and a threaded sleeve (15). The mounting frame (11) is welded to the top of the horizontal plate (10). The threaded sleeve (15) is welded to the left and right ends of the mounting frame (11) through the positioning block (12). The threaded sleeve (15) is threadedly connected to the threaded rod (14). The support roller (13) is welded to the front of the mounting frame (11).