CN210737910U - Steel bar connecting structure - Google Patents
Steel bar connecting structure Download PDFInfo
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- CN210737910U CN210737910U CN201920378877.2U CN201920378877U CN210737910U CN 210737910 U CN210737910 U CN 210737910U CN 201920378877 U CN201920378877 U CN 201920378877U CN 210737910 U CN210737910 U CN 210737910U
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Abstract
Compared with the prior art, the novel shell can be pre-embedded before being used as a protective steel bar connecting structure for construction; the grouting is poured into the shell through the grouting holes, post-grouting can be carried out after the connection of the steel bars is finished, the next procedure can be carried out without waiting for the grouting to reach the required strength, meanwhile, whether the shell is filled can be judged by observing whether the grouting holes have slurry overflowing, the grouting process is intuitive, and the quality can be conveniently controlled; in addition, the screw is used for driving the sleeve to rotate, so that the construction is convenient and the quality is reliable; the internal and external threads can also be adjusted according to the diameter requirement of the steel bar.
Description
Technical Field
The utility model relates to a steel bar connection structure among the prefabricated concrete structure specifically is a steel bar sleeve coupling joint that straight thread mechanical connection is used to prefabricated structure.
Background
The fabricated concrete structure has the advantages of energy conservation, environmental protection, high construction speed, high labor production efficiency and the like, and the country continuously puts forward relevant policies of industrialization in recent years and vigorously supports the development of industrialization. From the research and application experience at home and abroad, a large number of horizontal seams, vertical seams and joint connecting parts exist in the prefabricated concrete structure compared with a cast-in-place structure, prefabricated parts are connected into a whole through different connecting modes, so that the whole structure has enough bearing capacity, rigidity and ductility, and the capacities of resisting earthquake, accidental load and wind, therefore, the stress performance of the joints and the seams directly influences the overall performance of the structure, the design of the joints and the seams which are reasonable in stress and convenient to construct is a key technology for designing the prefabricated concrete structure, and is an important influence factor for determining whether the structural form can be popularized and applied.
The concrete structure engineering connecting technology mainly comprises the steps of grouting connection of steel bar sleeves, and joint of slurry anchors, binding and joint, welding and mechanical connection. The existing node design realizes the principle of strong joints and weak members, and the prefabricated concrete structure has the overall performance, the stability and the durability which are completely equivalent to those of a cast-in-place concrete structure in the node design.
At present, the prefabricated concrete structure is connected and is mainly adopted sleeve grout to connect, thick liquid anchor is connected and mechanical connection 3 kinds, the utility model discloses aim at solves following problem:
1. the prefabricated concrete structure is connected with wet operation, temporary support is needed, and the next procedure can be carried out only after the grouting material meets the strength;
2. the grouting material raw material is manufactured on site, but has high quality requirement, and the stability of the grouting material cannot be ensured
3. The grouting process is not intuitive and is not beneficial to quality control;
4. after the installation, the next procedure is carried out after the protection is required and the strength is met;
5. the quality detection after grouting is not beneficial to detecting the compactness and the filling degree of the grouting material.
Disclosure of Invention
In order to overcome the problem, the utility model provides a steel bar connection structure.
In order to realize the purpose, the novel technical scheme is as follows:
a steel bar connecting structure comprises a shell, a sleeve and a screw rod; a second reinforcing steel bar hole penetrates through the axis of the sleeve, and an internal thread is arranged inside the second reinforcing steel bar hole; the shell is hollow, the sleeve is arranged in the shell, and a first reinforcing steel bar hole communicated with a second reinforcing steel bar hole of the sleeve and a screw hole arranged along the radial direction of the shell are arranged on the radial surface of the end part of the shell; the screw hole is communicated with the inside of the shell, and the axis of the screw hole is vertical to the axis of the first reinforcing steel bar hole; the screw rod is arranged in the screw rod hole, and the surface of the screw rod and the outer wall surface of the sleeve are provided with driving structures capable of being matched with each other, so that the sleeve can be driven to rotate through rotation of the screw rod.
And the side wall at the top of the shell is provided with a grouting hole, and the grouting hole is communicated with the inside of the shell.
The screw hole set up the middle part at the shell.
The screw hole is arranged on the side wall surface of the shell, and the axis of the screw hole does not intersect with the axis of the shell; one side in screw rod hole and the inside intercommunication of shell satisfy in: when the screw rod is inserted into the screw rod hole, the wall surface of the screw rod can be contacted with the outer wall surface of the inner sleeve of the shell.
The screw hole is arranged on the side wall surface of the shell, and the axis of the screw hole is intersected with the axis of the shell; the width of the screw hole along the radial direction of the shell is equal to the sum of the radial widths of the screw and the sleeve.
The driving structure comprises a gear surface arranged on the outer wall surface of the screw rod and a thread surface which is arranged on the outer wall surface of the sleeve and can be meshed with the outer wall surface of the screw rod.
The technical scheme has the advantages that:
compared with the prior art, the novel shell can be pre-embedded before being used as a protective steel bar connecting structure for construction; the grouting is poured into the shell through the grouting holes, post-grouting can be carried out after the connection of the steel bars is finished, the next procedure can be carried out without waiting for the grouting to reach the required strength, meanwhile, whether the shell is filled can be judged by observing whether the grouting holes have slurry overflowing, the grouting process is intuitive, and the quality can be conveniently controlled; in addition, the screw is used for driving the sleeve to rotate, so that the construction is convenient and the quality is reliable; the internal and external threads can also be adjusted according to the diameter requirement of the steel bar.
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention.
Drawings
FIGS. 1-2 are schematic structural views of two embodiments of the novel housing;
FIGS. 3 and 4 are schematic structural views of two embodiments of the novel sleeve;
FIGS. 5 and 6 are schematic structural views of two embodiments of the screw of the present invention;
fig. 7 is a structural schematic view of the assembled steel bar connection structure of the present invention in embodiment 1;
fig. 8 is a structural schematic view of the assembled steel bar connection structure according to embodiment 2 of the present invention;
fig. 9 is a structural schematic view of the assembled steel bar connection structure according to embodiment 3 of the present invention;
fig. 10 is a using state diagram of the novel steel bar connecting structure.
Detailed Description
Example 1
A reinforcing bar coupling structure as shown in fig. 1 to 6, comprising a housing 1, a sleeve 2 and a screw 3; a second reinforcing steel bar hole 20 penetrates through the axis of the sleeve 2, and an internal thread 21 is arranged inside the second reinforcing steel bar hole 20; the shell 1 is hollow, the sleeve 2 is arranged in the shell 1, a steel bar hole I10 communicated with a sleeve steel bar hole II 20 and a screw hole 11 arranged along the radial direction of the shell 1 are arranged on the radial surface of the end part of the shell 1; the screw hole 11 is communicated with the inside of the shell 1, and the axis of the screw hole 11 is vertical to the axis of the first reinforcing steel bar hole 10; the screw rod 3 is arranged in the screw rod hole 11, and the surfaces of the screw rod 3 and the outer wall surface of the sleeve 2 are provided with mutually matched driving structures, so that the sleeve 2 can be driven to rotate through the rotation of the screw rod 3.
Preferably, the screw hole 11 is provided in the middle of the housing 1.
In the present embodiment, as shown in fig. 1 and 7, the driving structure includes an external gear 31 disposed on the outer wall surface of the sleeve 2, and an external thread 30 disposed on the screw 3, the screw hole 11 is disposed on the side wall surface of the housing 1, and the axis of the screw hole 11 intersects with the axis of the housing 1; the radial width of the screw hole 11 along the shell 1 is equal to the sum of the radial widths of the screw 3 and the sleeve 2, so that the screw 3 can be inserted into the screw hole 11 and then meshed with the external thread 30 of the sleeve, and the sleeve 2 can be driven to rotate through the rotation of the screw 3, thereby realizing the purpose of controlling the number of threads.
More preferably, as shown in fig. 5, a nut 32 is provided at an end of the screw 3.
Specifically, as shown in fig. 1-2, a grouting hole 12 is arranged on the side wall of the top of the housing 1, and the grouting hole 12 is communicated with the inside 1 of the housing; through the arrangement, when the screw rod drives the sleeve to rotate and is subjected to large resistance, high-pressure clean water can be injected through the grouting holes, and downward thrust is provided.
This neotype using-way does: screwing a steel bar or other components to be connected into the internal thread of the sleeve, inserting the screw rod, driving the sleeve to move downwards or upwards through the rotation of the screw rod, grouting through the first steel bar hole to fill a gap of a cavity at the upper part of the sleeve after the number of threads reaches the standard requirement, and simultaneously pulling out the screw rod; compared with the prior art, the novel device has the advantages that: the structure is simple to operate, and the number of threads can be adjusted according to actual requirements; and owing to be provided with the shell, the shell can satisfy part construction demand as interim support, can needn't wait for the grout to reach required strength and just can get into next process, and the slip casting is that whether fill in inside the shell, is provided with the slip casting hole on the shell, whether can judge through observing whether the slip casting hole has the thick liquids to spill over that whether the shell is inside to be filled up, and the slip casting process is directly perceived, can be convenient for to the control of quality.
Specifically, as shown in fig. 10, the casing 1 is mainly used for ensuring the sleeve 2 in the prefabrication process, so that the influence on the use of the steel bar connecting structure caused by the fact that concrete enters the space when the concrete is poured in a concrete prefabrication plant is avoided. There is certain clearance between shell 1 and sleeve 2, and grout material gets into from the top, and then spills over from the gap between upper portion concrete component 6 and the lower part concrete component 7 through the gap between shell 1 and sleeve 2, plays the effect of protection and restraint sleeve 2 and reinforcing bar 8.
Example 2
The reinforcing steel bar connecting structure according to embodiment 1, wherein part of the technology can be implemented by the following scheme:
in the embodiment, as shown in fig. 2 and 8, the driving structure is an external gear 31 arranged on the outer wall surface of the sleeve 2 and an external thread 30 arranged on the screw rod 3, the screw rod hole 11 is arranged on the side wall surface of the shell 1, and the axis of the screw rod hole 11 does not intersect with the axis of the shell 1; one side and the inside intercommunication of shell 1 of screw rod hole 11 satisfy in: when the screw rod 3 is inserted into the screw rod hole 11, the wall surface of the screw rod 3 can be meshed with the external thread 30 of the sleeve 2 in the outer shell, so that the screw rod 3 drives the sleeve 2 to rotate.
Example 3
The reinforcing steel bar connecting structure according to any of embodiment 1, wherein part of the technology can be implemented by the following scheme:
in the present embodiment, as shown in fig. 1 and 9, the sleeve 2 is provided with an external gear 31, the screw hole 11 is provided on the side wall surface of the housing 1, and the axis of the screw hole 11 intersects with the axis of the housing 1; one side and the 11 inside intercommunications of shell of screw rod hole 11 satisfy in: the driving piece can be inserted into the external gear of the sleeve to be meshed with the external gear of the sleeve.
Preferably, the driving member may be a toothed rack 4, and the toothed rack 4 extends into the screw hole 11, surrounds the sleeve 2, extends out of the screw hole 11, and is connected with a driving motor transmission rod, so that the sleeve can be driven to rotate without a screw.
Example 4
The reinforcing bar connecting structure according to any of embodiments 1 to 5, wherein part of the technology can be implemented by the following scheme:
as shown in fig. 4 and 8, a sealing plug 5 is arranged at the top of the sleeve 2; through the arrangement, the action area of high-pressure clean water on the sleeve can be provided, and then downward power is enhanced.
Claims (6)
1. The utility model provides a steel bar connection structure which characterized in that: comprises a shell, a sleeve and a screw rod; a second reinforcing steel bar hole penetrates through the axis of the sleeve, and an internal thread is arranged inside the second reinforcing steel bar hole; the shell is hollow, the sleeve is arranged in the shell, and a first reinforcing steel bar hole communicated with a second reinforcing steel bar hole of the sleeve and a screw hole arranged along the radial direction of the shell are arranged on the radial surface of the end part of the shell; the screw hole is communicated with the inside of the shell, and the axis of the screw hole is vertical to the axis of the first reinforcing steel bar hole; the screw rod is arranged in the screw rod hole, and the surface of the screw rod and the outer wall surface of the sleeve are provided with driving structures capable of being matched with each other, so that the sleeve can be driven to rotate through rotation of the screw rod.
2. A reinforcing bar connecting structure as set forth in claim 1, wherein: and the side wall at the top of the shell is provided with a grouting hole, and the grouting hole is communicated with the inside of the shell.
3. A reinforcing bar connecting structure as set forth in claim 1, wherein: the screw hole set up the middle part at the shell.
4. A reinforcing bar connecting structure as set forth in claim 3, wherein: the screw hole is arranged on the side wall surface of the shell, and the axis of the screw hole does not intersect with the axis of the shell; one side in screw rod hole and the inside intercommunication of shell satisfy in: when the screw rod is inserted into the screw rod hole, the wall surface of the screw rod can be contacted with the outer wall surface of the inner sleeve of the shell.
5. A reinforcing bar connecting structure as set forth in claim 3, wherein: the screw hole is arranged on the side wall surface of the shell, and the axis of the screw hole is intersected with the axis of the shell; the width of the screw hole along the radial direction of the shell is equal to the sum of the radial widths of the screw and the sleeve.
6. A reinforcing bar connecting structure as set forth in claim 1, wherein: the driving structure comprises a gear surface arranged on the outer wall surface of the screw rod and a thread surface which is arranged on the outer wall surface of the sleeve and can be meshed with the outer wall surface of the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378877.2U CN210737910U (en) | 2019-03-25 | 2019-03-25 | Steel bar connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378877.2U CN210737910U (en) | 2019-03-25 | 2019-03-25 | Steel bar connecting structure |
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| Publication Number | Publication Date |
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| CN210737910U true CN210737910U (en) | 2020-06-12 |
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| CN201920378877.2U Active CN210737910U (en) | 2019-03-25 | 2019-03-25 | Steel bar connecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031276A (en) * | 2020-07-13 | 2020-12-04 | 中国建筑股份有限公司 | Steel bar connection locking structure and use method thereof |
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2019
- 2019-03-25 CN CN201920378877.2U patent/CN210737910U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031276A (en) * | 2020-07-13 | 2020-12-04 | 中国建筑股份有限公司 | Steel bar connection locking structure and use method thereof |
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