CN215054581U - Rust-proof protection device for reserved steel bar joint - Google Patents
Rust-proof protection device for reserved steel bar joint Download PDFInfo
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- CN215054581U CN215054581U CN202120384183.7U CN202120384183U CN215054581U CN 215054581 U CN215054581 U CN 215054581U CN 202120384183 U CN202120384183 U CN 202120384183U CN 215054581 U CN215054581 U CN 215054581U
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- bar joint
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Abstract
The utility model discloses a reserve steel bar joint and use rust-resistant protection device, the one end of reinforcing bar is buried underground in concrete structure, and the other end stretches out outside concrete structure, and the one end that the reinforcing bar stretches out outside concrete structure is for reserving steel bar joint, and rust-resistant protection device includes connecting piece, pyrocondensation cover and drier, and the tip that reserves steel bar joint is located to the connecting piece, and pyrocondensation cover parcel is on reserving steel bar joint and connecting piece, and in the pyrocondensation cover was located to the drier. The rust-proof protection device for the reserved steel bar joint has the advantages of good rust-proof performance, long rust-proof time and convenience in site construction.
Description
Technical Field
The utility model relates to a be used for the technical field who anticorrosives, especially relate to a reserve steel bar joint uses rust-resistant protection device.
Background
With the development of the times and the progress of society, the building industry is developed in China with leaps and bounds, and the scale of building structures is getting bigger and bigger. In order to ensure the concrete pouring quality and consider the field construction condition, the large-volume reinforced concrete structure needs to adopt subsection and layered pouring, a steel bar joint is reserved at the position of a construction joint, and whether effective and reasonable rust prevention protection can be carried out on the reserved steel bar joint can determine whether the steel bar engineering quality can meet the expected requirement to a great extent. At present, the rust prevention treatment method of the steel bar mainly comprises the following steps: cement base coating method; a concrete wrapping method; epoxy resin coating method; plastic bag and adhesive tape wrapping method; spraying antirust water.
Cement base coating method: the cement mortar layer is incompleted and compact, the cement mortar coating is thin in actual construction, carbonization is easy to occur, and the rust prevention protective capability of the steel bar is not ideal. A concrete wrapping method comprises the following steps: pouring low-grade concrete to wrap the reinforcing steel bars, and adding the reinforcing steel bar rust inhibitor can ensure long-term rust resistance, but has the defect that the low-grade concrete needs to be completely removed during the construction. Epoxy resin coating method: the coating, paint, various greases and the like sold in the market are not suitable for reinforcing steel bars, the bonding force between the reinforcing steel bars and concrete is obviously reduced, and although the epoxy resin coating is good, the cost price is high, and the field construction is inconvenient. A plastic bag and adhesive tape wrapping method: the plastic adhesive tape is wrapped after the cement mortar layer is adopted, the plastic adhesive tape is inconvenient to process, easy to age and damage and not beneficial to long-term rust prevention protection of the reinforcing steel bars. And (3) spraying antirust water: the steel bar can be prevented from rusting for a certain period by regularly spraying water containing the steel bar rust inhibitor, but frequent observation and timely spraying treatment are needed, and the construction difficulty is high. The rust-proof treatment methods of the steel bar joint have the defects of poor rust-proof performance, short rust-proof time and inconvenient field construction.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a rust-resistant protection device for reserved steel bar joint that rust resistance is good, rust-resistant time is long and site operation is convenient.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a reserve bar joint and use rust-resistant protection device, the one end of reinforcing bar is buried underground in concrete structure, and the other end stretches out outside concrete structure, the reinforcing bar stretches out the one end outside concrete structure and is reserved bar joint, rust-resistant protection device includes connecting piece, pyrocondensation cover and drier, the tip of reserving bar joint is located to the connecting piece, pyrocondensation cover parcel is on reserved bar joint and connecting piece, the drier is located in the pyrocondensation cover.
As a further improvement of the above technical solution:
the thermal shrinkable sleeve is formed by compounding a radiation crosslinking polyolefin substrate and a sealing hot melt adhesive.
The desiccant is a silica gel desiccant.
The drying agent is positioned on one side of the connecting piece far away from the steel bar.
The connecting piece is a straight joint, a straight threaded hole penetrates through the center of the straight joint, and the end part of the reserved steel bar joint is inserted into the straight threaded hole.
And the reserved steel bar joint is in threaded connection with the straight threaded hole.
The connecting piece is a straight joint, two conical threaded holes which are oppositely arranged are formed in the center of the straight joint, the large-caliber ends of the two conical threaded holes face outwards and are connected with the small-caliber ends, and the end part of the reserved steel bar joint is inserted into the large-caliber end of one conical threaded hole.
And the reserved steel bar joint is in threaded connection with the conical threaded hole.
The connecting piece is a screw rod head.
The protective cap is sleeved on the screw rod head, and the thermal shrinkage sleeve wraps the protective cap on the reserved steel bar joint and the screw rod head.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a reserve steel bar joint and use rust-resistant protection device, the one end of reinforcing bar is buried underground in concrete structure, and the other end stretches out outside concrete structure, and the reinforcing bar stretches out to the outer one end of concrete structure and is reserved steel bar joint, and rust-resistant protection device includes connecting piece, pyrocondensation cover and drier, and the tip of reserving steel bar joint is located to the connecting piece, and the pyrocondensation cover parcel is on reserved steel bar joint and connecting piece, and in the pyrocondensation cover was located to the drier. Adopt the shrink wrap parcel on reservation steel bar joint and the connecting piece, put into the drier before the shrink wrap heating, adopt the electric air gun heating afterwards, the shrink wrap is heated radial shrinkage, tightly coats on reservation steel bar joint and connecting piece, forms a firm inoxidizing coating in the outside of reservation steel bar joint and connecting piece, and it has excellent antirust property and rust-resistant time is long. The inside of the thermal shrinkage sleeve forms a closed space, the thermal shrinkage sleeve is suitable for protecting the reserved steel bar joint for a long time after being placed with a drying agent, and the drying agent has strong moisture absorption performance, is beneficial to controlling the relative humidity of the environment and reducing and slowing down the corrosion of the reserved steel bar joint. The rust-proof protection device is simple, convenient and quick to operate during treatment. The rust-proof protection device for the reserved steel bar joint has the advantages of good rust-proof performance, long rust-proof time and convenience in site construction.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the rust-proof protection device for the reserved steel bar joint.
Fig. 2 is the structural schematic diagram of the second embodiment of the rust-proof protection device for the reserved steel bar joint.
Fig. 3 is the third schematic structural diagram of the embodiment of the rust-proof protection device for the reserved steel bar joint of the present invention.
Fig. 4 is the structural schematic diagram of the fourth embodiment of the rust-proof protection device for the reserved steel bar joint.
The reference numerals in the figures denote:
1. reinforcing steel bars; 2. a concrete structure; 3. reserving a steel bar joint; 4. a connecting member; 5. thermal shrinkage sleeving; 6. a desiccant; 7. a straight threaded hole; 8. a tapered threaded hole; 9. a protective cap.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples.
The implementation example one:
fig. 1 shows the utility model discloses reserve steel bar joint and use rust-resistant protection device's first embodiment, the reserve steel bar joint of this embodiment uses rust-resistant protection device, 1 one end of reinforcing bar is buried underground in concrete structure 2, the other end stretches out outside concrete structure 2, reinforcing bar 1 stretches out to the outer one end of concrete structure 2 is for reserving steel bar joint 3, this rust-resistant protection device includes connecting piece 4, thermal shrinkable sleeve 5 and drier 6, connecting piece 4 locates the tip of reserving steel bar joint 3, thermal shrinkable sleeve 5 wraps up on reserving steel bar joint 3 and connecting piece 4, drier 6 is located in thermal shrinkable sleeve 5.
Adopt 5 parcels of pyrocondensation cover on reserved steel bar joint 3 and the connecting piece 4, the drier 6 is put into to 5 heats of pyrocondensation cover, adopts the heating of air gun afterwards, and the pyrocondensation cover 5 is heated radial shrinkage, tightly coats on reserved steel bar joint 3 and connecting piece 4, forms a firm inoxidizing coating in the outside of reserved steel bar joint 3 and connecting piece 4, and it has excellent antirust property and rust-resistant time length. The inside airtight space that forms of pyrocondensation cover 5 is applicable to and protects reserved steel bar joint 3 for a long time after putting into drier 6, and drier 6 has strong moisture absorption performance, is favorable to controlling the relative humidity of environment, reduces and slows down the corrosion of reserved steel bar joint 3. The rust-proof protection device is simple, convenient and quick to operate during treatment. The rust-proof protection device for the reserved steel bar joint has the advantages of good rust-proof performance, long rust-proof time and convenience in site construction.
In this embodiment, the thermal shrinkable sleeve 5 is formed by compounding a radiation cross-linked polyolefin substrate and a sealing hot melt adhesive. The thermal shrinkage sleeve 5 is formed by compounding a radiation crosslinking polyolefin substrate and a special sealing hot melt adhesive, the special sealing hot melt adhesive can form good bonding with the polyolefin substrate, the steel surface and a solid epoxy coating, the substrate is heated and radially shrunk, an inner composite adhesive layer is melted, the reserved steel bar joint 3 and the connecting piece 4 are tightly coated, a firm protective layer is formed outside, and the thermal shrinkage sleeve has excellent wear resistance, corrosion resistance, impact resistance and good ultraviolet resistance and light aging resistance.
In this embodiment, the desiccant 6 is a silica gel desiccant 6. The silica gel desiccant 6 has stable chemical property and strong moisture absorption performance, is a high-activity adsorption material, is beneficial to controlling the relative humidity of the environment and reducing and slowing down the corrosion of the reserved steel bar joint 3. Specifically, the drying agent 6 is positioned on one side of the connecting piece 4 far away from the steel bar 1, and the wrapping effect of the heat shrinkable sleeve 5 on the reserved steel bar joint 3 and the connecting piece 4 is not influenced.
In this embodiment, the connecting member 4 is a straight joint, a straight threaded hole 7 penetrates through the center of the straight joint, and the end of the reserved steel bar joint 3 is inserted into the straight threaded hole 7. Further, the reserved steel bar joint 3 is in threaded connection with the straight threaded hole 7.
Example two:
fig. 2 shows the utility model discloses reserve steel bar joint is with rust-resistant protection device's second kind embodiment, the structure of this embodiment is the same basically with embodiment one, and the difference only lies in connecting piece 4's structure difference, and in this embodiment, connecting piece 4 is the straight joint, and the center of straight joint is equipped with two mutual disposition's toper screw hole 8, and two toper screw hole 8's heavy-calibre end outwards, small-bore end are connected, and reserve steel bar joint 3's tip inserts a toper screw hole 8's heavy-calibre end.
Further, the spare steel bar coupler 3 is in threaded connection with the tapered threaded hole 8.
Practical example three:
fig. 3 shows a third embodiment of the rust-proof protection device for the reserved steel bar joint of the present invention, the structure of the present embodiment is basically the same as that of the first embodiment, the difference is only that the structure of the connecting member 4 is different, in the present embodiment, the connecting member 4 is a screw head.
Example four:
fig. 4 shows the utility model discloses reserved steel bar joint is with rust-resistant protection device's third kind embodiment, the structure of this embodiment is on the basis of third embodiment, and the overhead cover of lead screw is equipped with protective cap 9, and 5 parcel of thermal shrinkage bush are on reserved steel bar joint 3 and the overhead protective cap 9 of lead screw. The protective effect on the screw rod head is improved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a reserve reinforcement joint and use rust-resistant protection device, the one end of reinforcing bar (1) is buried underground in concrete structure (2), and the other end stretches out outside concrete structure (2), reinforcing bar (1) stretches out the one end outside concrete structure (2) and is reserve reinforcement joint (3), its characterized in that: the anti-rust protection device comprises a connecting piece (4), a heat-shrinkable sleeve (5) and a drying agent (6), wherein the connecting piece (4) is arranged at the end part of the reserved steel bar joint (3), the heat-shrinkable sleeve (5) is wrapped on the reserved steel bar joint (3) and the connecting piece (4), and the drying agent (6) is arranged in the heat-shrinkable sleeve (5).
2. The rust-proof protection device for the reserved steel bar joint according to claim 1, characterized in that: the thermal shrinkable sleeve (5) is formed by compounding a radiation crosslinking polyolefin substrate and a sealing hot melt adhesive.
3. The rust-proof protection device for the reserved steel bar joint according to claim 1, characterized in that: the desiccant (6) is a silica gel desiccant (6).
4. The rust-proof protection device for the reserved steel bar joint according to claim 1, characterized in that: the drying agent (6) is positioned on one side of the connecting piece (4) far away from the steel bar (1).
5. An antirust protection device for a reserved steel bar joint according to any one of claims 1 to 4, wherein: the connecting piece (4) is a straight joint, a straight threaded hole (7) penetrates through the center of the straight joint, and the end part of the reserved steel bar joint (3) is inserted into the straight threaded hole (7).
6. The rust-proof protection device for the reserved steel bar joint according to claim 5, characterized in that: the reserved steel bar joint (3) is in threaded connection with the straight threaded hole (7).
7. An antirust protection device for a reserved steel bar joint according to any one of claims 1 to 4, wherein: the connecting piece (4) is a straight joint, two conical threaded holes (8) which are arranged oppositely are formed in the center of the straight joint, the large-caliber ends of the two conical threaded holes (8) face outwards and are connected with the small-caliber ends, and the end part of the reserved steel bar joint (3) is inserted into the large-caliber end of one conical threaded hole (8).
8. The rust-proof protection device for the reserved steel bar joint according to claim 7, characterized in that: the reserved steel bar joint (3) is in threaded connection with the conical threaded hole (8).
9. An antirust protection device for a reserved steel bar joint according to any one of claims 1 to 4, wherein: the connecting piece (4) is a screw rod head.
10. The rust-proof protection device for the reserved steel bar joint according to claim 9, characterized in that: the lead screw head is sleeved with a protective cap (9), and the thermal shrinkage sleeve (5) wraps the reserved steel bar joint (3) and the protective cap (9) on the lead screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120384183.7U CN215054581U (en) | 2021-02-20 | 2021-02-20 | Rust-proof protection device for reserved steel bar joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120384183.7U CN215054581U (en) | 2021-02-20 | 2021-02-20 | Rust-proof protection device for reserved steel bar joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215054581U true CN215054581U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120384183.7U Active CN215054581U (en) | 2021-02-20 | 2021-02-20 | Rust-proof protection device for reserved steel bar joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215054581U (en) |
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2021
- 2021-02-20 CN CN202120384183.7U patent/CN215054581U/en active Active
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