Detachable pull rod device of cable-stayed bridge cable tower
By connecting the embedded threaded steel bars with the extended threaded steel bars and designing the outer sleeve, the problem of difficulty in achieving a smooth concrete surface after construction was solved, enabling rapid recycling and surface smoothing, and improving construction efficiency and safety.
Patent Information
- Application Number
- CN202423129148.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing technologies, high-strength precision-rolled threaded steel structures require long cutting times after construction, resulting in extended construction cycles and difficulty in quickly achieving a smooth concrete surface.
The embedded threaded steel bars and the extended threaded steel bars are connected by an extended sleeve. When pouring concrete, the embedded threaded steel bars and the extended sleeve are fixed in the concrete, while the extended threaded steel bars extend outward. After construction, the extended threaded steel bars are screwed off from the extended sleeve. The outer sleeve and the PVC material of the outer sleeve reduce adhesion and allow for quick recovery of the extended threaded steel bars. The hole is then sealed with a sealing component.
It improves construction efficiency, reduces construction difficulty and time spent working at height, enhances construction safety and efficiency, and ensures rapid and smooth concrete structure surfaces.
Smart Images
Figure CN223535595U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of construction tools, and in particular to a detachable tie rod device for cable-stayed bridge towers. Background Technology
[0002] During the construction of cable towers and other building structures, bolts need to be pre-embedded in the concrete structure. Construction is completed by setting up templates or hooks on the bolts. After construction, the bolts or threaded rods on the concrete surface need to be cut off to ensure a smooth surface before subsequent plastering and other work can be carried out.
[0003] The relevant building tie rods are made of finely threaded steel bars, which are steel bars with discontinuous external threads rolled on them. Connectors with internal threads can be screwed onto the steel bars. By embedding one end of the finely threaded steel bar into the concrete structure and leaving the other end protruding outside the concrete structure, users can install various construction tools on the finely threaded steel bar.
[0004] The aforementioned technical solutions have the following drawbacks: the high strength of the precision-rolled threaded steel structure, and the need to spend time cutting the precision-rolled threaded steel to maintain the smoothness and aesthetics of the concrete structure surface after construction, resulting in a long construction period. Utility Model Content
[0005] To facilitate the smoothing of the concrete structure surface after construction, this application provides a detachable tie rod device for cable-stayed bridge towers.
[0006] The technical solution for a detachable tie rod device for a cable-stayed bridge tower provided in this application is as follows:
[0007] A detachable tie rod device for a cable-stayed bridge tower includes an embedded threaded steel bar, an extended threaded steel bar, and an extended sleeve. Both the embedded and extended threaded steel bars are threaded, and the extended sleeve is internally threaded. One end of the extended sleeve is threadedly connected to the embedded threaded steel bar, and the other end is threadedly connected to the extended threaded steel bar. The embedded threaded steel bar is set inside the concrete structure, and the end of the extended threaded steel bar extends out of the concrete structure.
[0008] By adopting the above technical solution, embedded threaded steel bars are installed in the concrete structure, and the embedded threaded steel bars and extended threaded steel bars are connected by an extended sleeve. When the concrete structure is poured, the embedded threaded steel bars and the extended sleeve are located in the cement mortar. After the cement mortar solidifies, the embedded threaded steel bars and the extended sleeve are fixed in the concrete structure, and the end of the extended threaded steel bar extends out of the concrete structure. At this time, the user can set up construction tools on the extended threaded steel bar. After the construction is completed, the user can unconnect the extended threaded steel bar from the extended sleeve by screwing on the extended threaded steel bar, thereby recovering the extended threaded steel bar and making the concrete structure surface smooth, improving construction efficiency and reducing construction difficulty.
[0009] Optionally, an outer sleeve is fitted onto the extended sleeve. The length of the outer sleeve is greater than the length of the extended sleeve. One side of the outer sleeve is embedded in the concrete structure, and the other side extends out of the concrete structure.
[0010] By adopting the above technical solution, by fitting an outer sleeve onto the extended sleeve, the outer sleeve can cover the extended sleeve. When the extended sleeve is embedded in the cement mortar, one end of the outer sleeve can be embedded in the cement mortar, while the other end extends out of the cement mortar. After the cement mortar solidifies, the probability of concrete adhering to the extended threaded steel bar and the extended sleeve can be reduced, thereby allowing the extended threaded steel bar to be easily and quickly disconnected from the extended sleeve.
[0011] Optionally, the extended sleeve and the outer sleeve are bonded together.
[0012] By adopting the above technical solution, the extended sleeve is bonded to the outer sleeve. After the concrete structure is poured, the outer sleeve is fixedly connected to the concrete structure. At this time, when the extended threaded steel bar is screwed, the extended sleeve is fixedly connected to the concrete structure through the outer sleeve. This reduces the probability that the extended sleeve will rotate with the extended threaded steel bar when screwing it, thereby reducing the probability that the extended sleeve will move inside the concrete structure and protrude outside the concrete structure, thus keeping the surface of the concrete structure flat.
[0013] Optionally, the extended sleeve extends outside the concrete structure.
[0014] By adopting the above technical solution, and by extending the extended sleeve outside the concrete structure, the user can further disconnect the extended sleeve from the embedded threaded steel bar by screwing on the extended sleeve, thereby facilitating the user to retrieve the extended sleeve.
[0015] Optionally, the outer tube is made of PVC material.
[0016] By adopting the above technical solution, after the operator removes the extended threaded steel bar from the extended sleeve, it is necessary to cut the outer sleeve to make the concrete surface smooth. By using PVC to make the outer sleeve, the outer sleeve can be cut easily and quickly, thereby reducing damage to the concrete structure surface and improving the efficiency and safety of high-altitude operations.
[0017] Optionally, the extended threaded steel bar is threaded with a nut, and a wooden I-beam is provided on the extended threaded steel bar. The extended threaded steel bar passes through the wooden I-beam, and the nut abuts against the wooden I-beam.
[0018] By adopting the above technical solution, and by setting nuts on the extended threaded steel bars, users can fix the wooden I-beams by abutting the nuts against the side walls of the I-beams. Users can also set up templates and other tools on the wooden I-beams for easy use.
[0019] Optionally, the extended sleeve is detachably connected to a sealing component, which includes a threaded part and a sealing plate. The threaded part is a screw structure, and the sealing plate is a circular plate structure. The threaded part and the sealing plate are coaxially connected. The threaded part is used to connect with the extended sleeve, and the sealing plate is used to adhere to the surface of the concrete structure.
[0020] By adopting the above technical solution and setting a sealing component in the extended sleeve, when the user removes the extended threaded steel bar from the extended sleeve, a hole is formed in the concrete structure. By inserting the threaded part into the hole, the user can connect the threaded part to the extended sleeve, thereby improving the strength of the connection between the sealing component and the concrete structure.
[0021] Optionally, a rubber component is provided on the threaded portion. The rubber component is made of an elastic material and has a frustum structure. An installation hole is provided at the center of the rubber component. The installation hole penetrates the rubber component, and the threaded portion is inserted into the installation hole. The sealing plate is fitted to the bottom surface of the rubber component.
[0022] By adopting the above technical solution, a rubber component is installed on the threaded part, which can be pushed into the pre-embedded hole through the sealing plate, thereby filling the hole in the concrete structure and improving the sealing performance between the sealing plate and the concrete structure.
[0023] In summary, the beneficial technical effects of this application are as follows:
[0024] 1. By embedding internal threaded steel bars in the concrete structure, the internal threaded steel bars and the extended threaded steel bars are connected by an extended sleeve. When the concrete structure is poured, the internal threaded steel bars and the extended sleeve are located in the cement mortar. After the cement mortar solidifies, the internal threaded steel bars and the extended sleeve are fixed in the concrete structure, and the end of the extended threaded steel bar extends out of the concrete structure. At this time, the user can set up construction tools on the extended threaded steel bar. After the construction is completed, the user can unconnect the extended threaded steel bar from the extended sleeve by screwing on the extended threaded steel bar, thereby recovering the extended threaded steel bar and making the concrete structure surface smooth, improving construction efficiency and reducing construction difficulty.
[0025] 2. By installing an outer sleeve on the extended sleeve, the outer sleeve can cover the extended sleeve. When the extended sleeve is embedded in the cement mortar, one end of the outer sleeve can be embedded in the cement mortar, while the other end extends out of the cement mortar. After the cement mortar solidifies, the probability of concrete adhering to the extended threaded steel bar and the extended sleeve can be reduced, thereby allowing the extended threaded steel bar to be easily and quickly disconnected from the extended sleeve.
[0026] 3. After the operator removes the extended threaded steel bar from the extended sleeve, the outer sleeve needs to be cut to make the concrete surface smooth. By using PVC to make the outer sleeve, it can be cut easily and quickly, thereby reducing damage to the concrete structure surface and improving the efficiency and safety of high-altitude operations. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0028] Figure 2 This is a schematic diagram showing the position of the outer tube in an embodiment of this application.
[0029] Figure 3 This is a schematic diagram showing the connection relationship between the embedded threaded steel bars and the extended threaded steel bars in an embodiment of this application.
[0030] Figure 4 This is a cross-sectional view of the embedded threaded steel bar and the extended threaded steel bar in the embodiments of this application.
[0031] Figure 5 This is a schematic diagram of the sealing component according to an embodiment of this application.
[0032] Figure 6 This is a schematic diagram showing the connection relationship between the sealing component and the rubber component in an embodiment of this application.
[0033] Figure 7 This is a schematic diagram of the structure of the rubber component according to an embodiment of this application.
[0034] Reference numerals: 1. Embedded threaded steel bar; 2. Extended threaded steel bar; 21. Nut; 22. Timber I-beam; 3. Extended sleeve; 4. Outer sleeve; 5. Concrete structure; 6. Sealing component; 61. Threaded part; 62. Sealing plate; 63. Rubber component; 631. Mounting hole. Detailed Implementation
[0035] The present application will be further described in detail below with reference to the accompanying drawings.
[0036] This application discloses a detachable tie rod device for cable-stayed bridge towers, referring to... Figure 1 , Figure 2 and Figure 3 The system includes an internally embedded threaded steel bar 1, an externally extended threaded steel bar 2, and an extended sleeve 3. The internally embedded threaded steel bar 1 and the externally extended threaded steel bar 2 have external threads, while the extended sleeve 3 has internal threads. One end of the extended sleeve 3 is threadedly connected to the internally embedded threaded steel bar 1, and the other end is threadedly connected to the externally extended threaded steel bar 2. The user fixes the internally embedded threaded steel bar 1 to the steel bar and pours cement. The cement solidifies, forming a concrete structure 5. Both the internally embedded threaded steel bar 1 and the extended sleeve 3 are located within the concrete structure 5, while the externally extended threaded steel bar 2 extends beyond the concrete structure 5. The user can install structural components on the externally extended threaded steel bar 2. After construction, the user can disconnect the externally extended threaded steel bar 2 from the extended sleeve 3 by screwing it on, thus restoring the surface of the concrete structure 5 to a smooth state. The construction time is short, and high-altitude work is minimal.
[0037] Reference Figure 1 A wooden I-beam 22 is provided on the extended threaded steel bar 2. The extended threaded steel bar 2 passes through the wooden I-beam 22. A nut 21 is threadedly connected to the extended threaded steel bar 2. The nut 21 is used to hold the wooden I-beam 22, so that the wooden I-beam 22 can be fixed and clamped to the template for pouring cement mortar.
[0038] Reference Figure 2 , Figure 3 and Figure 4 An outer sleeve 4 is provided outside the extended sleeve 3, and the length of the outer sleeve 4 is greater than the length of the extended sleeve 3. The outer sleeve 4 is used for pre-embedding in cement mortar. After the concrete structure 5 is poured, one end of the outer sleeve 4 is embedded in the concrete structure 5, and the other end extends out of the concrete structure 5. By providing an outer sleeve 4 outside the extended sleeve 3, the probability of cement mortar entering the gap at the connection between the extended sleeve 3 and the extended threaded steel bar 2 can be reduced, thereby reducing the probability of concrete adhering to the extended threaded steel bar 2 and the extended sleeve 3, and making it easier for users to disconnect the extended threaded steel bar 2 from the extended sleeve 3 by screwing.
[0039] Reference Figure 4The outer tube 4 is made of plastic materials such as PVC. The outer tube 4 has low structural strength. After the concrete structure 5 is poured, the user can use tools such as saws and shears to cut the outer tube 4, thereby making the surface of the concrete structure 5 flat. The user can cut the outer tube 4 quickly and easily, which can reduce the time and danger of high-altitude operations.
[0040] In other embodiments, the end of the extended sleeve 3 extends to the surface of the concrete structure 5. After the concrete structure 5 is poured, the user can screw and remove the outer threaded steel bar 2, and then cut the outer sleeve 4 to expose the end of the extended sleeve 3. At this time, the user can screw the end of the extended sleeve 3 to rotate the extended sleeve 3 relative to the embedded threaded steel bar 1, thereby allowing the extended sleeve 3 to be removed from the embedded threaded steel bar 1 for easy recycling by the user.
[0041] In other embodiments, an adhesive layer is provided between the outer sleeve 4 and the extended sleeve 3 to bond and fix the outer sleeve 4 and the extended sleeve 3. After the concrete structure 5 is poured, when personnel tighten the extended threaded steel bar 2, the extended sleeve 3 may rotate with the extended threaded steel bar 2, causing the extended sleeve 3 to loosen and extend into the pre-embedded hole of the concrete structure 5. At this time, the extended part of the extended sleeve 3 is relatively short and difficult to tighten and remove by hand. In order to make the surface of the concrete structure 5 flat, it is necessary to cut the extended sleeve 3 or use tools to clamp and tighten the extended sleeve 3, which increases the construction period. By bonding the extended sleeve 3 to the outer sleeve 4, when personnel rotate the extended threaded steel bar 2, the extended sleeve 3 is kept fixed in the concrete structure 5 by the outer sleeve 4, thereby reducing the probability of the extended sleeve 3 moving in the concrete structure 5, so that the extended sleeve 3 can be kept in the concrete structure 5 and the surface of the concrete structure 5 can be flat.
[0042] Reference Figure 5 The extended sleeve 3 is detachably connected to a sealing component 6. When the extended threaded steel bar 2 is removed from the extended sleeve 3, a pre-embedded hole is formed on the surface of the concrete structure 5, which needs to be sealed. The sealing component 6 can be inserted into the pre-embedded hole and threadedly connected to the extended sleeve 3, thereby sealing the hole and making the surface of the concrete structure 5 smooth.
[0043] Reference Figure 5 The sealing component 6 includes a threaded portion 61 and a sealing plate 62. The threaded portion 61 is a screw structure, and the sealing plate 62 is a circular plate structure. The threaded portion 61 and the sealing plate 62 are coaxially arranged. The threaded portion 61 is used to insert into the pre-embedded hole and is threadedly connected to the end of the extended sleeve 3. The sealing plate 62 is used to conform to the outer surface of the concrete structure 5 and block the pre-embedded hole. By inserting the sealing component 6 into the pre-embedded hole, the user can block the pre-embedded hole with the sealing plate 62. The sealing component 6 is threadedly connected to the extended sleeve 3, thereby reducing the probability of the sealing component 6 falling out of the pre-embedded hole.
[0044] Reference Figure 6 and Figure 7 In other embodiments, the sealing member 6 is provided with a rubber member 63, which is made of elastic rubber material and has a frustum structure. A mounting hole 631 is formed at the center of the rubber member 63, penetrating through it. A threaded portion 61 is inserted into the mounting hole 631, and the sealing plate 62 abuts against the bottom surface of the rubber member 63. When the user installs the sealing member 6 onto the extended sleeve 3, by screwing the sealing member 6, the sealing plate 62 compresses the rubber member 63, thereby pressing the rubber member 63 into the pre-embedded hole, further improving the sealing performance within the pre-embedded hole and enhancing the sealing performance at the connection between the sealing plate 62 and the concrete structure 5.
[0045] The implementation principle of this application embodiment is as follows: by pre-embedding the internal threaded steel bar 1 in the concrete structure 5, the external threaded steel bar 2 and the internal threaded steel bar 1 are connected by the threaded sleeve 3. After the concrete structure 5 is poured, the user can screw the external threaded steel bar 2 to remove it from the extended sleeve 3, thereby enabling the concrete structure 5 to quickly return to a flat state. By installing an outer sleeve 4 on the extended sleeve 3, the probability of cement mortar seeping into the external threaded steel bar 2 and the extended sleeve 3 can be further reduced, so that the external threaded steel bar 2 can be smoothly unscrewed from the extended sleeve 3.
[0046] 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 detachable tie rod device for cable-stayed bridge towers, characterized in that: It includes an embedded threaded steel bar (1), an extended threaded steel bar (2) and an extended sleeve (3). Both the embedded threaded steel bar (1) and the extended threaded steel bar (2) are threaded. The extended sleeve (3) is internally threaded. One end of the extended sleeve (3) is threaded to the embedded threaded steel bar (1) and the other end is threaded to the extended threaded steel bar (2). The embedded threaded steel bar (1) is set inside the concrete structure (5) and the end of the extended threaded steel bar (2) extends out from the concrete structure (5).
2. The detachable tie rod device for cable-stayed bridge towers according to claim 1, characterized in that: The extended sleeve (3) is fitted with an outer sleeve (4), the length of which is greater than the length of the extended sleeve (3). One side of the outer sleeve (4) is embedded in the concrete structure (5), and the other side extends out of the concrete structure (5).
3. A detachable tie rod device for cable-stayed bridge towers according to claim 2, characterized in that: The extended sleeve (3) and the outer sleeve (4) are bonded and fixed.
4. A detachable tie rod device for cable-stayed bridge towers according to claim 2, characterized in that: The extended sleeve (3) extends outside the concrete structure (5).
5. A detachable tie rod device for cable-stayed bridge towers according to claim 2, characterized in that: The outer tube (4) is made of PVC material.
6. A detachable tie rod device for cable-stayed bridge towers according to claim 1, characterized in that: The extended threaded steel bar (2) is threaded with a nut (21), and a wooden I-beam (22) is provided on the extended threaded steel bar (2). The extended threaded steel bar (2) passes through the wooden I-beam (22), and the nut (21) abuts against the wooden I-beam (22).
7. A detachable tie rod device for cable-stayed bridge towers according to claim 1, characterized in that: The extended sleeve (3) is detachably connected to a sealing component (6). The sealing component (6) includes a threaded part (61) and a sealing plate (62). The threaded part (61) is a screw structure, and the sealing plate (62) is a circular plate structure. The threaded part (61) and the sealing plate (62) are coaxially connected. The threaded part (61) is used to connect with the extended sleeve (3), and the sealing plate (62) is used to adhere to the surface of the concrete structure (5).
8. A detachable tie rod device for cable-stayed bridge towers according to claim 7, characterized in that: A rubber part (63) is provided on the threaded part (61). The rubber part (63) is made of an elastic material. The rubber part (63) has a frustum structure. An installation hole (631) is provided at the center of the rubber part (63). The installation hole (631) penetrates the rubber part (63). The threaded part (61) is inserted into the installation hole (631). The sealing plate (62) is fitted to the bottom surface of the rubber part (63).