Unidirectional formwork reinforcing screw
By designing a unidirectional template reinforcement screw and using a combination of sleeve and inner tube with wire rope for limiting, the problem of screw weld point breakage was solved, achieving stable reinforcement of the template in areas with dense reinforcement or steel structure, and avoiding formwork bursting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD ENG CO LTD OF CCCC SECOND HIGHWAY ENG BUREAU
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
In existing technologies, the welded joints of the screw are prone to breakage or detachment when subjected to high pressure, resulting in unstable formwork reinforcement. This is especially true in areas with dense reinforcement or obstructed by structural steel structures, where the screws cannot be fully penetrated, leading to formwork bursting.
A one-way template reinforcement screw is adopted. Through the design of sleeve and inner tube, steel wire rope is used to be sleeved on the outside of the steel bar, and the template is connected and fixed in one direction by the cap and the groove.
It effectively solves the problem of breakage or detachment of the screw welding point, ensures the stability and reinforcement of the template under high pressure, avoids the phenomenon of mold bursting, and is suitable for parts with dense reinforcement or structural steel.
Smart Images
Figure CN224200272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reinforcing screw technology, specifically a unidirectional template reinforcing screw. Background Technology
[0002] In cast-in-place concrete structures, tie rods are often used to reinforce formwork. These tie rods pass through both sides of the concrete structure and extend from the formwork. Fasteners are installed at both ends of the extended tie rods to restrict the position of the formwork and reinforce it. In areas with dense reinforcement or obstructions such as steel structures, tie rods cannot pass through. In these cases, the tie rods must be welded to the reinforcement or other structures, extending unidirectionally out of the formwork for reinforcement.
[0003] Templates reinforced in this way are prone to weld breakage or detachment when subjected to high pressure, which can lead to mold bursting. Utility Model Content
[0004] The purpose of this invention is to provide a unidirectional template-reinforced screw to solve the problem of screw welding point breakage or detachment.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a unidirectional template reinforcement screw, including a sleeve and an inner tube. The sleeve is provided with an internal thread, and the inner tube includes a threaded sleeve. The threaded sleeve is installed in conjunction with the internal thread of the sleeve. A steel wire rope is provided inside the threaded sleeve, and the end of the steel wire rope is installed on a cap. The cap is installed in conjunction with the port of the threaded sleeve.
[0007] The sleeve is installed by inserting it into the mold hole aligned with the template.
[0008] The screw rods pass through both sides of the entire concrete structure and extend out of the formwork. Fasteners are installed at both ends of the screw rods to restrict the position of the formwork and reinforce it.
[0009] When there are dense steel bars or obstructions such as steel structures, the bolts cannot pass through. In this case, the bolts can only be welded to the steel bars or other structures and extend out of the formwork in one direction to reinforce the formwork.
[0010] Templates reinforced in this way are prone to weld breakage or detachment when subjected to high pressure, which can lead to mold bursting.
[0011] By attaching steel wire ropes to the outside of the reinforcing bars, the formwork can be connected, thus solving the problem that the screw rods cannot be passed through, and enabling the installation of one-way formwork.
[0012] Furthermore, one end of the sleeve is provided with a groove, the sleeve is installed in the mold hole of the template, and the groove is engaged with the outside of the reinforcing bar in the mold hole;
[0013] During installation, the sleeve is inserted into the mold hole of the template by being clamped to the outside of the reinforcing bar through the groove, thereby achieving alignment of the two mold holes.
[0014] Furthermore, the other end of the sleeve is provided with a protruding ring, which is matched with the mold hole port of the template for limiting the fit;
[0015] The installation depth of the sleeve is limited by the engagement of the convex ring with the edge of the die hole.
[0016] Furthermore, the end of the threaded sleeve is provided with a prism, the prism is matched with the end of the sleeve, the end of the prism is provided with a stepped hole, and the cap is fitted into the stepped hole;
[0017] The limiting sleeve and the threaded sleeve are connected by a threaded fit. A wrench is used to lock the threaded sleeve on the outside of the prism, causing the threaded sleeve to rotate. This allows the threaded sleeve to be unscrewed, changing the distance between the prism and the limiting sleeve port, thereby pushing the cap to move outward.
[0018] Furthermore, two oppositely distributed grooves are formed on the peripheral side of the cover, the end of the wire rope is located in the groove, and a plug is fixed to the end of the wire rope extending out of the groove;
[0019] The end face of the cap is concave, and the end of the plug is in contact with the concave surface.
[0020] Pass both ends of the wire rope through the mold hole of the template and put the wire rope on the outside of the steel bar. After aligning the two ends of the wire rope, pass the two ends of the wire rope through the limiting sleeve and the threaded sleeve in sequence. The end of the cap is stuck in the groove and the end of the wire rope is limited by the plug.
[0021] The cap is then installed inside the stepped hole to secure the end of the wire rope.
[0022] By rotating the inner tube, the cap and the end of the wire rope are moved, thereby tightening the wire rope and fixing the template.
[0023] This utility model has the following beneficial effects:
[0024] This utility model involves passing both ends of a steel wire rope through the mold hole of the template and sleeve the steel wire rope on the outside of the reinforcing bar. After aligning the two ends of the steel wire rope, the two ends of the steel wire rope are passed through the limiting sleeve and the threaded sleeve in sequence. The end of the cap is stuck in the groove. The end of the steel wire rope is limited by the plug, thereby realizing the installation of the template.
[0025] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0028] Figure 2 This is a side view of the present invention;
[0029] Figure 3 This is a cross-sectional view of the present invention;
[0030] Figure 4 This is a schematic diagram of the unfolded state of this utility model;
[0031] Figure 5 This is a schematic diagram of the installation of this utility model;
[0032] The attached diagram lists the components represented by each number as follows:
[0033] In the diagram: 1. Sleeve; 101. Groove; 2. Inner tube; 201. Threaded sleeve; 202. Prism; 203. Stepped hole; 3. Wire rope; 4. Cap; 401. Groove; 402. Concave surface; 5. Plug; 6. Template; 601. Reinforcing bar. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0035] Please see Figures 1-5 As shown, this utility model is a one-way template reinforcing screw, including a sleeve 1 and an inner tube 2. The sleeve 1 is provided with an internal thread, and the inner tube 2 includes a threaded sleeve 201. The threaded sleeve 201 is installed in conjunction with the internal thread of the sleeve 1. A steel wire rope 3 is provided inside the threaded sleeve 201. The end of the steel wire rope 3 is installed on a cover 4, and the cover 4 is installed in conjunction with the port of the threaded sleeve 201.
[0036] The sleeve 1 is installed by inserting it into the mold hole aligned with the template 6;
[0037] The screw rods pass through both sides of the entire concrete structure and extend out of the formwork. Fasteners are installed at both ends of the screw rods to restrict the position of the formwork and reinforce it.
[0038] When there are dense steel bars or obstructions such as steel structures, the bolts cannot pass through. In this case, the bolts can only be welded to the steel bars or other structures and extend out of the formwork in one direction to reinforce the formwork.
[0039] Templates reinforced in this way are prone to weld breakage or detachment when subjected to high pressure, which can lead to mold bursting.
[0040] By attaching the steel wire rope 3 to the outside of the reinforcing bar 7, the formwork 6 is connected, thus solving the problem that the screw rod cannot be passed through.
[0041] One end of the sleeve 1 is provided with a groove 101. The sleeve 1 is installed in the mold hole of the template 6, and the groove 101 is snapped into the outside of the reinforcing bar 7 in the mold hole.
[0042] During installation, the sleeve 1 is inserted into the mold hole of the template 6 by the slot 101 being clamped on the outside of the reinforcing bar 7, thereby achieving alignment of the two mold holes.
[0043] The other end of the sleeve 1 is provided with a protruding ring, which is matched with the mold hole port of the template 6 for limiting.
[0044] The installation depth of sleeve 1 is limited by the engagement of the convex ring with the edge of the die hole.
[0045] The end of the threaded sleeve 201 is provided with a prism 202, which is matched with the port of the sleeve 1. The port of the prism 202 is provided with a stepped hole 203, and the cap 4 is fitted into the stepped hole 203.
[0046] The limiting sleeve 1 and the threaded sleeve 201 are connected by a thread. A wrench is used to lock the threaded sleeve 201 on the outside of the prism 202, which drives the threaded sleeve 201 to rotate. This causes the threaded sleeve 201 to unscrew and change the distance between the prism 202 and the port of the limiting sleeve 1, thereby pushing the cover 4 to move outward.
[0047] Two oppositely distributed grooves 401 are provided on the peripheral side of the cover 4. The end of the wire rope 3 is located in the groove 401, and a plug 5 is fixed to the end of the wire rope 3 that extends out of the groove 401.
[0048] The end face of the cap 4 is concave 402, and the end of the plug 5 is in contact with the concave 402.
[0049] like Figure 5As shown, during the installation process, templates are installed on the outside of the steel reinforcement frame to form the cavity, and then concrete is poured. Two templates are located on the outside of the steel reinforcement frame and are fixed by double-headed bolts and nuts. Since the steel reinforcement of the steel reinforcement frame overlaps with the position of the template hole, double-headed bolts cannot pass through. Therefore, they are connected by one-way connectors.
[0050] Pass both ends of the wire rope 3 through the mold hole of the template 6 and put the wire rope 3 on the outside of the reinforcing bar 7. After aligning the two ends of the wire rope 3, pass the two ends of the wire rope 3 through the limiting sleeve 1 and the threaded sleeve 201 in sequence. Secure the end of the cap 4 in the groove 401 and limit the end of the wire rope 3 through the plug 5.
[0051] The cap 4 is then installed inside the stepped hole 203 to secure the end of the wire rope 3.
[0052] By rotating the inner tube 2, the end of the cap 4 and the wire rope 3 are moved, thereby tightening the wire rope 3. The template 6 is fixed by pressing the sleeve 1 against the mold hole of the template 6.
[0053] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A unidirectional template reinforcing screw, comprising a sleeve (1) and an inner tube (2), characterized in that: The sleeve (1) is provided with internal threads; The inner tube body (2) includes a threaded sleeve (201), which is installed in conjunction with the internal thread of the sleeve (1); The threaded sleeve (201) is provided with a steel wire rope (3) inside. The end of the steel wire rope (3) is installed on the cover (4), and the cover (4) is fitted into the port of the threaded sleeve (201).
2. The unidirectional template reinforcing screw according to claim 1, characterized in that: One end of the sleeve (1) is provided with a slot (101); The sleeve (1) is installed inside the mold hole of the template (6); The slot (101) is engaged with the outside of the reinforcing bar (7) inside the mold hole.
3. The unidirectional template reinforcing screw according to claim 1, characterized in that: The other end of the sleeve (1) is provided with a protruding ring, which is matched with the mold hole port of the template (6) for limiting.
4. The unidirectional template reinforcing screw according to claim 1, characterized in that: The end of the threaded sleeve (201) is provided with a prism (202), and the prism (202) is in a limiting fit with the port of the sleeve (1).
5. A unidirectional template reinforcing screw according to claim 4, characterized in that: The prism (202) has a stepped hole (203) at its end; The cover (4) is fitted into the stepped hole (203).
6. The unidirectional template reinforcing screw according to claim 1, characterized in that: Two oppositely distributed grooves (401) are provided on the peripheral side of the cover (4), and the end of the wire rope (3) is located in the groove (401); The end of the wire rope (3) extending out of the groove (401) is fixed with a plug (5).
7. A unidirectional template reinforcing screw according to claim 6, characterized in that: The end face of the cap (4) is concave (402), and the end of the plug (5) is in contact with the concave (402).