CN220014212U - Combined vertical unbonded prestressed steel bar - Google Patents
Combined vertical unbonded prestressed steel bar Download PDFInfo
- Publication number
- CN220014212U CN220014212U CN202321680378.1U CN202321680378U CN220014212U CN 220014212 U CN220014212 U CN 220014212U CN 202321680378 U CN202321680378 U CN 202321680378U CN 220014212 U CN220014212 U CN 220014212U
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- Prior art keywords
- sleeve
- rod
- connecting steel
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- wall
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 97
- 239000010959 steel Substances 0.000 title claims abstract description 97
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 43
- 210000001503 joint Anatomy 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 229910000754 Wrought iron Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000002180 anti-stress Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a combined vertical unbonded prestressed steel rod, which relates to the technical field of prestressed steel rods and comprises a mounting unit, a bearing unit and an auxiliary reinforcing unit, wherein the mounting unit comprises a first connecting steel rod, an external sleeve, an internal sleeve and a central reinforcing rod. According to the utility model, through the matched use of the external sleeve, the internal sleeve, the external joint pipe, the internal shrinkage pipe and the sleeve joint groove, the first connecting steel rod and the second connecting steel rod can be quickly butted, meanwhile, the structural strength of the first connecting steel rod and the second connecting steel rod is improved by utilizing a multi-layer sleeve joint structure formed between the first connecting steel rod and the second connecting steel rod, the service life of the steel rods is prolonged, the subsequent butt joint of the first connecting steel rod and the second connecting steel rod is guided by utilizing the plug-in butt joint formed by the central reinforcing rod and the internal shrinkage pipe, the subsequent installation efficiency is ensured, and meanwhile, the central reinforcing rod is inserted and butted into the second connecting steel rod, so that the connection strength of the first connecting steel rod and the second connecting steel rod is further improved.
Description
Technical Field
The utility model relates to the technical field of prestressed steel bars, in particular to a combined vertical unbonded prestressed steel bar.
Background
The prestressed steel bar is widely applied to the high-strength prestressed component because of the characteristics of high strength and toughness, low relaxation, strong bond strength with concrete, good weldability, upsetting property and the like, and workers fix the prestressed steel bar together through screws and bolts, however, the following defects exist in the installation mode: the installation process of the prestressed steel bars is complicated, the installation is not convenient enough, the dislocation phenomenon is easy to occur when two prestressed steel bars are improperly installed, the prestressed steel bars at the joint are broken, and the construction efficiency is affected.
Disclosure of Invention
The utility model aims to provide a combined vertical unbonded prestressed steel bar, which aims to solve the problems in the background technology.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a combined vertical unbonded prestressed steel bar comprises a mounting unit, a bearing unit and an auxiliary reinforcing unit.
The installation unit comprises a first connecting steel rod, an external sleeve, an internal sleeve and a central reinforcing rod, the bearing unit comprises a second connecting steel rod, an internal shrinkage tube and an external bearing tube, and the auxiliary reinforcing unit comprises an external reinforcing telescopic rod and an assembly spring.
The outer wall of the built-in shrink tube is provided with a side position groove, and the top end of the second connecting steel rod is provided with a sleeve receiving groove for installing the built-in sleeve.
The technical scheme of the utility model is further improved as follows: the center reinforcing rod is located inside the built-in sleeve, the built-in sleeve is located inside the external sleeve, and the inner wall of the bottom end of the external sleeve is fixedly connected with the outer wall of the top end of the first connecting steel rod.
By adopting the technical scheme, the cooperation of the external sleeve, the internal sleeve, the external joint pipe, the internal shrinkage pipe and the sleeve joint groove is utilized in the scheme, so that the first connecting steel rod and the second connecting steel rod can be quickly connected, meanwhile, the multi-layer sleeve joint structure formed between the first connecting steel rod and the second connecting steel rod is utilized, the structural strength of the first connecting steel rod and the second connecting steel rod is improved, and the service life of the steel rod is prolonged.
The technical scheme of the utility model is further improved as follows: the bottom of the built-in sleeve is fixedly connected with the top end of the first connecting steel rod, and the center of the top end of the first connecting steel rod is fixedly connected with the bottom end of the center reinforcing rod.
The technical scheme of the utility model is further improved as follows: the top outer wall of the central reinforcing rod is inserted into the inner wall of the built-in shrink tube, and the inner wall of the built-in sleeve is in threaded connection with the outer wall of the built-in shrink tube.
By adopting the technical scheme, the central reinforcing rod is utilized to form the inserted butt joint with the built-in shrink tube in the scheme, the subsequent butt joint of the first connecting steel rod and the second connecting steel rod is guided, the subsequent installation efficiency is ensured, and meanwhile, the central reinforcing rod is inserted into the second connecting steel rod for butt joint, so that the connection strength of the central reinforcing rod and the second connecting steel rod is further improved.
The technical scheme of the utility model is further improved as follows: the outer wall of the external sleeve is in threaded connection with the outer wall of the external joint pipe.
The technical scheme of the utility model is further improved as follows: the bottom of the external sleeve is fixedly connected with the top of the external reinforcing telescopic rod, and the external reinforcing telescopic rod is positioned on the outer wall of the first connecting steel rod.
The technical scheme of the utility model is further improved as follows: the outer wall of the external reinforcing telescopic rod is movably connected with the inner wall of the assembly spring, and the top stretching end of the assembly spring is fixedly connected with the bottom surface of the external sleeve.
By adopting the technical scheme, in the scheme, the external reinforcing telescopic rods which are arranged on the outer walls of the first connecting steel rod and the second connecting steel rod are matched with the assembly springs for use, so that the stress resistance of the first connecting steel rod and the second connecting steel rod is improved, and the overall structural strength is further improved.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
1. the utility model provides a combined type vertical unbonded prestressed steel bar, which utilizes the cooperation of an external sleeve, an internal sleeve, an external joint pipe, an internal shrinkage pipe and a sleeve joint groove to enable a first connecting steel bar and a second connecting steel bar to be quickly butted, and meanwhile, utilizes a multi-layer sleeve joint structure formed between the first connecting steel bar and the second connecting steel bar to improve the structural strength of the first connecting steel bar and the second connecting steel bar and prolong the service life of the steel bar.
2. The utility model provides a combined vertical unbonded prestressed steel bar, which guides the subsequent butt joint of a first connecting steel bar and a second connecting steel bar by utilizing the inserted butt joint formed by a central reinforcing rod and a built-in shrink tube, so that the subsequent installation efficiency is ensured, and meanwhile, the central reinforcing rod is inserted and butt-jointed into the second connecting steel bar, so that the connection strength of the two is further improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a combined structure of the present utility model;
FIG. 3 is a detailed schematic diagram of the connection structure of the first connection steel bar and the second connection steel bar;
FIG. 4 is a schematic top view of a first connecting rod of the present utility model;
FIG. 5 is a schematic top view of a second connecting rod of the present utility model;
fig. 6 is a schematic structural view of an external reinforcing telescopic rod according to the present utility model.
In the figure: 1. a first connecting steel bar; 2. the second connecting steel bar; 3. an external sleeve; 4. a sleeve is arranged in the inner part; 5. a central reinforcing rod; 6. an external socket pipe; 7. a shrink tube is arranged in the inner part; 8. a sleeve receiving groove; 9. an external reinforced telescopic rod; 10. a side slot; 11. and (5) assembling a spring.
Detailed Description
The utility model is further illustrated by the following examples:
example 1
As shown in fig. 1 to 6, the utility model provides a combined vertical unbonded prestressed steel bar, which comprises a mounting unit, a bearing unit and an auxiliary reinforcing unit.
The installation unit comprises a first connecting steel rod 1, an external sleeve 3, an internal sleeve 4 and a central reinforcing rod 5, the bearing unit comprises a second connecting steel rod 2, an internal shrinkage tube 7 and an external bearing tube 6, and the auxiliary reinforcing unit comprises an external reinforcing telescopic rod 9 and an assembly spring 11.
The outer wall of the built-in shrink tube 7 is provided with a side position groove 10, and the top end of the second connecting steel rod 2 is provided with a sleeve receiving groove 8 for installing the built-in sleeve 4.
The center reinforcing rod 5 is located the inside of built-in sleeve 4, and built-in sleeve 4 is located the inside of external sleeve 3, and the bottom inner wall of external sleeve 3 and the top outer wall fixed connection of first connection rod 1.
The cooperation of external sleeve pipe 3, built-in sleeve pipe 4, external socket pipe 6, built-in shrink tube 7 and sleeve pipe accepting groove 8 is used for first connection steel bar 1 and second connection steel bar 2 can dock fast, utilizes the multilayer that forms between the two simultaneously to cup joint the structure, improves both structural strength, has prolonged the life of steel bar.
The bottom of the built-in sleeve 4 is fixedly connected with the top end of the first connecting steel rod 1, and the center of the top end of the first connecting steel rod 1 is fixedly connected with the bottom end of the center reinforcing rod 5.
The outer wall of the top end of the central reinforcing rod 5 is inserted into the inner wall of the built-in shrink tube 7, and the inner wall of the built-in sleeve 4 is in threaded connection with the outer wall of the built-in shrink tube 7.
The center reinforcing rod 5 is in inserted butt joint with the built-in shrink tube 7, guides the butt joint of the follow-up first connecting steel rod 1 and the second connecting steel rod 2, guarantees follow-up installation efficiency, and meanwhile the center reinforcing rod 5 is inserted in the second connecting steel rod 2 in a butt joint mode, and further improves the connection strength of the center reinforcing rod 5 and the second connecting steel rod.
Example 2
As shown in fig. 1-6, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the outer wall of the external sleeve 3 is in threaded connection with the outer wall of the external joint pipe 6, the bottom end of the external sleeve 3 is fixedly connected with the top end of the external reinforcing telescopic rod 9, and the external reinforcing telescopic rod 9 is located on the outer wall of the first connecting steel bar 1.
The outer wall of external enhancement telescopic link 9 and the inner wall swing joint of assembly spring 11, the top tensile end of assembly spring 11 and the bottom surface fixed connection of external sleeve pipe 3, the external enhancement telescopic link 9 that all installs of first connection steel bar 1 and second connection steel bar 2 outer wall is used with assembly spring 11 in the cooperation, improves the anti-stress capacity of first connection steel bar 1 and second connection steel bar 2 self, further promotes holistic structural strength.
The working principle of the combined vertical unbonded prestressed steel rod is specifically described below.
When the connecting rod iron 1 is used, as shown in fig. 1-6, the first connecting rod iron 1 and the second connecting rod iron 2 are butted, a worker turns over the first connecting rod iron 1 for a circle to enable the top to be downward, then firstly penetrates the central reinforcing rod 5 into the inner wall of the internal shrinkage tube 7, then presses down until the inner wall of the internal sleeve pipe 4 is butted with the outer wall of the internal shrinkage tube 7, then rotates the first connecting rod iron 1, enables the internal sleeve pipe 4 to move downwards in a rotating way on the outer wall of the internal shrinkage tube 7 by utilizing threads, meanwhile, the inner wall is butted with the outer wall of the external shrinkage tube 6 synchronously, rotates downwards, and when the external sleeve pipe 3 is butted with the external shrinkage tube 6, the internal sleeve pipe 4 is butted with the inner wall of the internal shrinkage tube 7, the inserting end of the central reinforcing rod 5 is butted with the bottom of the inner wall of the internal shrinkage tube 7, and the bottom end of the external sleeve pipe 3 is butted with the upper edge of the bottom of the external shrinkage tube 6, so that the first connecting rod iron 1 and the second connecting rod iron 2 are integrated, and the installation is completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element, the utility model being generally described above in detail, but may be modified or improved upon by the present utility model as will be apparent to those of ordinary skill in the art. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (7)
1. A vertical unbonded prestressing steel bar of combination formula, its characterized in that: comprises a mounting unit, a bearing unit and an auxiliary reinforcing unit;
the mounting unit comprises a first connecting steel rod (1), an external sleeve (3), an internal sleeve (4) and a central reinforcing rod (5), the receiving unit comprises a second connecting steel rod (2), an internal shrinkage tube (7) and an external receiving tube (6), and the auxiliary reinforcing unit comprises an external reinforcing telescopic rod (9) and an assembly spring (11);
the outer wall of the built-in shrink tube (7) is provided with a side position groove (10), and the top end of the second connecting steel bar (2) is provided with a sleeve bearing groove (8) for installing the built-in sleeve (4).
2. A combined vertical unbonded prestressed steel bar as set forth in claim 1, characterized in that: the central reinforcing rod (5) is located inside the built-in sleeve (4), the built-in sleeve (4) is located inside the external sleeve (3), and the inner wall of the bottom end of the external sleeve (3) is fixedly connected with the outer wall of the top end of the first connecting steel rod (1).
3. A combined vertical unbonded prestressed steel bar as set forth in claim 1, characterized in that: the bottom of the built-in sleeve (4) is fixedly connected with the top end of the first connecting steel rod (1), and the center of the top end of the first connecting steel rod (1) is fixedly connected with the bottom end of the center reinforcing rod (5).
4. A combined vertical unbonded prestressed steel bar as set forth in claim 1, characterized in that: the outer wall of the top end of the central reinforcing rod (5) is spliced with the inner wall of the built-in shrink tube (7), and the inner wall of the built-in sleeve (4) is in threaded connection with the outer wall of the built-in shrink tube (7).
5. A combined vertical unbonded prestressed steel bar as set forth in claim 1, characterized in that: the outer wall of the external sleeve (3) is in threaded connection with the outer wall of the external joint pipe (6).
6. A combined vertical unbonded prestressed steel bar as set forth in claim 1, characterized in that: the bottom of external sleeve pipe (3) with the top fixed connection of external enhancement telescopic link (9), external enhancement telescopic link (9) are located the outer wall of first connection steel bar (1).
7. A combined vertical unbonded prestressed steel bar as set forth in claim 1, characterized in that: the outer wall of the external reinforced telescopic rod (9) is movably connected with the inner wall of the assembly spring (11),
the top stretching end of the assembly spring (11) is fixedly connected with the bottom surface of the external sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321680378.1U CN220014212U (en) | 2023-06-29 | 2023-06-29 | Combined vertical unbonded prestressed steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321680378.1U CN220014212U (en) | 2023-06-29 | 2023-06-29 | Combined vertical unbonded prestressed steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220014212U true CN220014212U (en) | 2023-11-14 |
Family
ID=88684077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321680378.1U Active CN220014212U (en) | 2023-06-29 | 2023-06-29 | Combined vertical unbonded prestressed steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220014212U (en) |
-
2023
- 2023-06-29 CN CN202321680378.1U patent/CN220014212U/en active Active
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