CN214062984U - Nut pre-embedded duct piece capable of being mounted on mounting support without damage - Google Patents
Nut pre-embedded duct piece capable of being mounted on mounting support without damage Download PDFInfo
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- CN214062984U CN214062984U CN202022554578.5U CN202022554578U CN214062984U CN 214062984 U CN214062984 U CN 214062984U CN 202022554578 U CN202022554578 U CN 202022554578U CN 214062984 U CN214062984 U CN 214062984U
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Abstract
The utility model discloses a but nut pre-buried formula section of jurisdiction of not damaged installing support, including reinforced concrete section of jurisdiction and pre-buried at least one piece of embedded nut in reinforced concrete section of jurisdiction internal face, embedded nut's tail end has the enlarged footing, and distributes on embedded nut's the outer wall of afterbody has a plurality of sawtooth or external screw thread. The utility model has the advantages that: the anchoring effect between the concrete and the embedded nut is increased by adding the expanded end and the zigzag structure at the tail part of the embedded nut, so that the embedded nut and the concrete jointly bear load, and the tensile and shear-resistant bearing capacity of the embedded nut is improved; the nuts are embedded in the inner wall of the tunnel segment, so that the equipment support is conveniently fixed with the lining structure through fasteners such as bolts, and the damage of subsequent support installation construction to the formed tunnel segment structure can be effectively reduced; the embedded nut is made of ceramic or stainless steel, so that the embedded nut is good in durability, has small influence on the structure of the formed tunnel segment, and can effectively reduce later-stage operation and maintenance cost.
Description
Technical Field
The utility model relates to a shield tunnel technical field, concretely relates to but nut pre-buried formula section of jurisdiction of not damaged installing support.
Background
After the civil construction of the shield tunnel is completed, supports of electromechanical equipment such as a strong current cable, a weak current cable, a water supply and drainage pipeline and the like are usually required to be installed on the inner wall of the lining.
When the support of the equipment is installed, a method which is usually adopted is to drill holes on the inner wall of the segment of the shield tunnel and to drive expansion bolts to fix the support, but the installation mode can greatly damage the segment structure of the shield tunnel, and the operation process is inconvenient.
Disclosure of Invention
The utility model aims at providing a but not damaged mounting bracket's nut pre-buried formula section of jurisdiction according to the weak point of above-mentioned prior art, this nut pre-buried formula section of jurisdiction can not cause the damage to fashioned section of jurisdiction structure through at least one piece of pre-buried nut so that support or framework of reinforcement of follow-up installation buried underground in the reinforced concrete section of jurisdiction.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the nut pre-embedded duct piece capable of being mounted on the mounting support without damage is characterized by comprising a reinforced concrete duct piece and at least one pre-embedded nut pre-embedded in the inner wall surface of the reinforced concrete duct piece, wherein the tail end of the pre-embedded nut is provided with an expansion head, and a plurality of sawteeth or external threads are distributed on the outer wall surface of the tail of the pre-embedded nut.
The reinforced concrete segment is provided with a support, the support comprises an arc plate attached to the inner wall surface of the reinforced concrete segment and a plurality of supporting parts extending outwards from the arc plate, screw holes are correspondingly formed in the arc plate corresponding to the positions of the embedded nuts on the reinforced concrete segment respectively, and the embedded nuts are in threaded connection with the screw holes through bolts.
And a steel bar framework is arranged on the reinforced concrete pipe, and the steel bar framework is provided with a threaded steel bar and is correspondingly connected with each embedded nut.
The head end part of the embedded nut is provided with a boss protruding out of the inner wall surface of the reinforced concrete segment.
The utility model has the advantages that: (1) the anchoring effect between the concrete and the embedded nut is increased by adding the expanded end and the zigzag structure at the tail part of the embedded nut, so that the embedded nut and the concrete jointly bear load, and the tensile and shear-resistant bearing capacity of the embedded nut is improved; (2) the nuts are embedded in the inner wall of the tunnel segment, so that the equipment support is conveniently fixed with the lining structure through fasteners such as bolts, and the damage of subsequent support installation construction to the formed tunnel segment structure can be effectively reduced; the embedded nut is made of ceramic or stainless steel, so that the embedded nut is good in durability, has small influence on the structure of the formed tunnel segment, and can effectively reduce later-stage operation and maintenance cost.
Drawings
FIG. 1 is a schematic structural view of a middle nut pre-embedded duct piece of the present invention;
FIG. 2 is a schematic structural view of a nut pre-embedded duct piece of the present invention, in which the head end of the pre-embedded nut has a boss and the tail end has an enlarged head;
fig. 3 is a schematic view of the mounting bracket on the inner wall surface of the duct piece of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example with reference to the accompanying drawings, for the understanding of those skilled in the art:
as shown in fig. 1-3, the respective symbols in the drawings are: reinforced concrete section of jurisdiction 1, embedded nut 2, external screw thread 3, enlarged footing 4, boss 5, supporting part 6, arc 7, support 8.
Example 1: as shown in fig. 1 and 3, the embodiment specifically relates to a nut pre-embedded duct piece capable of being mounted on a nondestructive mounting support, the nut pre-embedded duct piece mainly comprises a reinforced concrete duct piece 1 and a pre-embedded nut 2, the pre-embedded nut 2 is embedded in the inner wall surface of the reinforced concrete duct piece 1, according to the mounting requirement of a support 8, at least one pre-embedded nut 2 is embedded on each reinforced concrete duct piece 1, the outer wall surface of the tail part of the pre-embedded nut 2 is provided with an external thread 3 or a sawtooth, so that the anchoring effect between concrete and the pre-embedded nut 2 is increased, the pre-embedded nut 2 and the concrete jointly bear load, and the tensile strength and the shearing resistance bearing capacity of the pre-embedded nut 2 are improved. It should be noted that, the embedded nut 2 in this embodiment is made of ceramic or stainless steel, so that the durability is good, the influence on the structure of the formed tunnel segment is small, and the later-stage operation and maintenance cost can be effectively reduced.
As shown in fig. 1, during the use process, the bracket 8 or one of the steel frameworks can be installed at the position corresponding to the embedded nut 2.
When installing support 8, support 8 includes the arc 7 of hugging closely 1 internal face of reinforced concrete section of jurisdiction and from a plurality of supporting parts 6 of outside extension on arc 7, can set up equipment such as cable on the supporting part 6, and the screw has been seted up and carries out threaded connection with embedded nut 2 through the bolt to the position that corresponds each embedded nut 2 on the reinforced concrete section of jurisdiction 1 on the arc 7 respectively corresponding, effectively reduces the damage of follow-up 8 erection constructions of support to tunnel segment of jurisdiction structure.
When the steel bar framework is installed, the steel bar framework is provided with the threaded steel bars, and the threaded steel bars are correspondingly connected with the embedded nuts 2 respectively so as to be fixed on the inner wall surface of the reinforced concrete segment 1 and reduce the damage to the formed tunnel structure caused by steel bar planting construction and the like.
The beneficial effect of this embodiment lies in: (1) the anchoring effect between the concrete and the embedded nut is increased by adding the expanded end and the zigzag structure at the tail part of the embedded nut, so that the embedded nut and the concrete jointly bear load, and the tensile and shear-resistant bearing capacity of the embedded nut is improved; (2) the nuts are embedded in the inner wall of the tunnel segment, so that the equipment support is conveniently fixed with the lining structure through fasteners such as bolts, and the damage of subsequent support installation construction to the formed tunnel segment structure can be effectively reduced; the embedded nut is made of ceramic or stainless steel, so that the embedded nut is good in durability, has small influence on the structure of the formed tunnel segment, and can effectively reduce later-stage operation and maintenance cost.
Example 2: as shown in fig. 2/3, this embodiment concretely relates to but nut pre-buried formula section of jurisdiction of not damaged installing support, this nut pre-buried formula section of jurisdiction is on the basis of embodiment 1, the structure of pre-buried nut 2 has further been improved, tail end at pre-buried nut 2 is provided with enlarged head 4, means portion at pre-buried nut 2 is provided with boss 5 simultaneously, this boss 5 protrusion in reinforced concrete section of jurisdiction 1's internal face, thereby in embodiment 1 during support mounting, can avoid making support 8 and shield tunnel internal face contact, cause the destruction influence to tunnel structure.
Claims (4)
1. The nut pre-embedded duct piece capable of being mounted on the mounting support without damage is characterized by comprising a reinforced concrete duct piece and at least one pre-embedded nut pre-embedded in the inner wall surface of the reinforced concrete duct piece, wherein the tail end of the pre-embedded nut is provided with an expansion head, and a plurality of sawteeth or external threads are distributed on the outer wall surface of the tail of the pre-embedded nut.
2. The nut embedded duct piece capable of being mounted with no damage to the mounting bracket as claimed in claim 1, wherein the reinforced concrete duct piece is mounted with a bracket, the bracket comprises an arc plate tightly attached to the inner wall surface of the reinforced concrete duct piece and a plurality of supporting parts extending outwards from the arc plate, and the arc plate is correspondingly provided with screw holes corresponding to the embedded nuts on the reinforced concrete duct piece and is in threaded connection with the embedded nuts through bolts.
3. The embedded duct piece of nuts with nondestructive mounting bracket of claim 1, characterized in that the reinforced concrete duct piece is mounted with a steel reinforcement frame, the steel reinforcement frame is provided with a steel reinforcement with screw thread and is correspondingly connected with each embedded nut.
4. The embedded duct piece of nuts with nondestructive mounting of claim 1, wherein the head end of the embedded nut has a boss protruding from the inner wall of the reinforced concrete duct piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022554578.5U CN214062984U (en) | 2020-11-08 | 2020-11-08 | Nut pre-embedded duct piece capable of being mounted on mounting support without damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022554578.5U CN214062984U (en) | 2020-11-08 | 2020-11-08 | Nut pre-embedded duct piece capable of being mounted on mounting support without damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214062984U true CN214062984U (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022554578.5U Active CN214062984U (en) | 2020-11-08 | 2020-11-08 | Nut pre-embedded duct piece capable of being mounted on mounting support without damage |
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| CN (1) | CN214062984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226958A (en) * | 2023-10-10 | 2023-12-15 | 江苏睿中轨道交通装备有限公司 | Composite ceramic anchoring piece pre-buried in concrete and preparation device thereof |
-
2020
- 2020-11-08 CN CN202022554578.5U patent/CN214062984U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117226958A (en) * | 2023-10-10 | 2023-12-15 | 江苏睿中轨道交通装备有限公司 | Composite ceramic anchoring piece pre-buried in concrete and preparation device thereof |
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