CN212295345U - Full grouting sleeve for steel bar connection - Google Patents
Full grouting sleeve for steel bar connection Download PDFInfo
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- CN212295345U CN212295345U CN202020362987.2U CN202020362987U CN212295345U CN 212295345 U CN212295345 U CN 212295345U CN 202020362987 U CN202020362987 U CN 202020362987U CN 212295345 U CN212295345 U CN 212295345U
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Abstract
The utility model provides a full grouting sleeve for connecting steel bars, which comprises a full grouting main body sleeve, and square shear keys, grouting ports, grout outlets, grout sealing plugs and limiting baffles which are arranged on the inner wall of the full grouting main body sleeve, wherein the limiting baffles are of stepped ring structures, and reinforcing ribs are also fixed on the inner wall of the full grouting main body sleeve on two sides of the limiting baffles; the inner wall of the full grouting main body sleeve between the square strip shear keys is also uniformly provided with holding shear keys; still include steel sleeve and middle part support sleeve, in steel sleeve was located to full grout main part sleeve cooperation cover, middle part support sleeve overlaps on the steel sleeve between grout mouth and the grout outlet. The utility model discloses an add and grab the shear force key and hold and anti carry telescopic mode to solve current telescopic structure of grout entirely, anti not enough problem of carrying, with low costs, install and use swiftly. The shear key position, the position of the limit baffle and the grout sealing plug are all designed with structures for improving the load resistance, the overall structure is strong in matching, and compared with the existing sleeve with a single structure, the construction strength is greatly increased.
Description
Technical Field
The utility model relates to steel construction engineering field, in particular to steel bar connection is with full grout sleeve.
Background
The grouting sleeve connection technology is suitable for the fields of reinforced concrete structure engineering, steel structure engineering, bridge engineering, offshore oil exploitation platform engineering, offshore wind power generation towers and the like. The grouting sleeve is a combination assembled by a specially processed sleeve, matched grouting materials and reinforcing steel bars, and the reinforcing steel bars and the sleeve are connected by means of the bonding and meshing action between materials through injecting the quick-hardening non-shrinkage grouting materials when the reinforcing steel bars are connected. The sleeve grouting joint has the advantages of reliable performance, wide applicability, simplicity and convenience in installation and the like.
The grouting sleeve comprises a full-grouting main sleeve, a shear key, a grouting port, a grout outlet, a grout sealing plug and a limiting baffle, wherein the full-grouting sleeve comprises a full-grouting main sleeve, the shear key, the grouting port, the grout outlet, the grout sealing plug and the limiting baffle, two sections of steel bars are movably placed in the full-grouting main sleeve, and after grouting, the grout is hardened to bond and connect the two sections of steel bars into an integral structure. The built-in shear force key of full grout main part sleeve is single, only sets up several bellied square strip structures on inner tube section of thick bamboo wall, and it is little to grab the effect with between the grout concrete, and whole steadiness is low, and the middle part support barrel of connecting reinforcement is regarded as to full grout main part sleeve between grout mouth and the grout outlet, and section of thick bamboo wall anti-year is not enough.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a full grouting sleeve for connecting steel bars.
The utility model provides a technical scheme is: a full grouting sleeve for connecting steel bars comprises a full grouting main body sleeve, and square shear keys, grouting ports, grout outlets, grout sealing plugs and limiting baffles which are arranged on the inner wall of the full grouting main body sleeve, wherein the limiting baffles are of stepped ring structures, and reinforcing ribs are also fixed on the inner wall of the full grouting main body sleeve on two sides of the limiting baffles; the inner wall of the full grouting main body sleeve between the square strip shear keys is also uniformly provided with holding shear keys; still include steel sleeve and middle part support sleeve, in steel sleeve was located to full grout main part sleeve cooperation cover, middle part support sleeve overlaps on the steel sleeve between grout mouth and the grout outlet.
The utility model discloses an add and grab the shear force key and hold and anti carry telescopic mode to solve current telescopic structure of grout entirely, anti not enough problem of carrying, with low costs, install and use swiftly. Specifically, the full grouting sleeve for connecting the steel bars comprises a full grouting main body sleeve, and square shear keys, grouting ports, a grout outlet, a grout sealing plug and a limit baffle which are arranged on the inner wall of the full grouting main body sleeve, when in use, two sections of steel bars are required to be oppositely arranged in the full grouting main body sleeve, wherein the square shear keys and the second steel bar head are arranged, as shown in figure 1, grout enters the whole full grouting main body sleeve from the grouting ports, and after the grout is hardened from the grout outlet, the hardened grout clamps and connects the first steel bar head and the second steel bar head into an integral structure, the square shear keys play a role of clamping between the full grouting main body sleeve and the grout, the limit baffle is an installation connection limiting point of the first steel bar head and the second steel bar head and avoids direct contact, and the limit baffle is designed into a stepped ring structure so that the limit baffle has larger concrete clamping force, the clamping surfaces are arranged at multiple positions, so that the clamping area is increased, meanwhile, the limiting openings are reduced, and the contact between reinforcing steel bars is further avoided, so that further, in order to improve the stability of the limiting baffle in the full-grouting main body sleeve, reinforcing ribs are welded on the inner walls of the full-grouting main body sleeves at two sides, are of arc block structures and are symmetrically welded; the inner wall of the full-grouting main body sleeve between the square shear keys is also uniformly and integrally provided with holding shear keys, and a plurality of pairs of symmetrical limiting baffles are arranged, so that the holding area of the full-grouting main body sleeve and concrete slurry is increased, and the overall strength is improved; the utility model discloses still include steel sleeve and middle part support sleeve, full grout main part sleeve cooperation cover is located in the steel sleeve, middle part support sleeve overlaps on the steel sleeve between grout mouth and grout outlet, establishes two-layer reinforcement sleeve through adding, improves the telescopic steadiness of single full grout main part and anti year intensity of carrying, and especially middle part support sleeve's cover is established, solves the anti bearing capacity and the not enough problem of intensity of the full grout main part sleeve that exists as the middle part support barrel between grout mouth and the grout outlet betterly.
The utility model has the beneficial technical effects that: the utility model discloses an add and grab the shear force key and hold and anti carry telescopic mode to solve current telescopic structure of grout entirely, anti not enough problem of carrying, with low costs, install and use swiftly. The shear key position, the position of the limit baffle and the grout sealing plug are all designed with structures for improving the load resistance, the overall structure is strong in matching, and compared with the existing sleeve with a single structure, the construction strength is greatly increased.
Drawings
FIG. 1 is a schematic diagram of the cross-section construction structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
in the figure, 1, a first steel bar head, 2, a square shear key, 3, a full grouting main body sleeve, 4, a grout outlet, 5, grout, 6, a reinforcing shear key, 7, a steel sleeve, 8, a limiting baffle, 9, a reinforcing rib, 10, a grouting opening, 11, a connecting end cover, 12, a grout sealing plug, 13, a pressing end cover, 14, a second steel bar head, 15, a middle supporting sleeve, 16 and an outward-turning end cover are arranged.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, the relative terms "upper", "lower", "left", "right", "inner", "outer" and other position indication positions are only based on the position shown in the drawings to simplify the description of the present invention, but not the position and structure that the components must have, and thus, the limitation of the present invention cannot be understood.
Example 1
As shown in the attached drawings 1 and 2, the full grouting sleeve for connecting the steel bars comprises a full grouting main body sleeve 3, and a square shear key 2, a grouting opening 10, a grout outlet 4, a grout sealing plug 12 and a limit baffle 8 which are arranged on the inner wall of the full grouting main body sleeve 3, wherein the limit baffle 8 is of a stepped ring structure, and reinforcing ribs 9 are also fixed on the inner walls of the full grouting main body sleeve 3 at the two sides of the limit baffle 8; the inner wall of the full grouting main body sleeve 3 between the square strip shear keys 2 is also uniformly provided with holding shear keys 6; still include steel sleeve 7 and middle part support sleeve 15, in steel sleeve 7 was located to full grout main part sleeve 3 cooperation cover, middle part support sleeve 15 overlaps on steel sleeve 7 between grout mouth 10 and grout outlet 4.
The utility model discloses an add and grab the shear force key and hold and anti carry telescopic mode to solve current telescopic structure of grout entirely, anti not enough problem of carrying, with low costs, install and use swiftly. Specifically, a full grouting sleeve for connecting steel bars comprises a full grouting main sleeve 3, and a square bar shear key 2, a grouting opening 10, a grout outlet 4, a grout sealing plug 12 and a limit baffle 8 which are arranged on the inner wall of the full grouting main sleeve 3, when in use, two sections of steel bars need to be oppositely arranged in the full grouting main sleeve 3, which is a first steel bar head 1 and a second steel bar head 14, as shown in fig. 1, slurry 15 enters the whole full grouting main sleeve 3 from the grouting opening 10, and from the grout outlet 4, after hardening, the hardened slurry 5 grabs and connects the first steel bar head 1 and the second steel bar head 14 into an integral structure, the square bar shear key 2 plays a role of grabbing and connecting between the full grouting main sleeve 3 and the slurry 5, and the limit baffle 8 is an installation and connection limit point of the first steel bar head 1 and the second steel bar head 14 to avoid direct contact, and in order to ensure that the limit baffle 8 also has a large concrete grabbing and holding force, the limiting baffle 8 is designed into a stepped ring structure, a plurality of clamping surfaces are arranged, the clamping area is increased, meanwhile, the limiting opening is reduced, and the contact between reinforcing steel bars is further avoided, so that further, in order to improve the stability of the limiting baffle 8 in the full grouting main body sleeve 3, reinforcing ribs 9 are welded on the inner walls of the full grouting main body sleeves 3 at two sides, are of an arc block structure, and are symmetrically welded; the inner wall of the full-grouting main body sleeve 3 between the square shear keys 2 is also uniformly and integrally provided with holding shear keys 6, and a plurality of pairs of symmetrical limiting baffles 8 are arranged, so that the holding area of the full-grouting main body sleeve 3 and the concrete slurry 5 is increased, and the overall strength is improved; the utility model discloses still include steel sleeve 7 and middle part support sleeve 15, 3 cooperation covers of full grout main part sleeve are located in steel sleeve 7, middle part support sleeve 15 overlaps on grout mouth 10 and the steel sleeve 7 between grout outlet 4, establish two-layer reinforcement sleeve through adding, improve the steadiness and the anti-bearing strength of single full grout main part sleeve 3, especially middle part support sleeve 15's cover is established, solve the anti-bearing capacity and the not enough problem of intensity of the full grout main part sleeve 3 that grout outlet 10 and grout outlet 4 exist as the middle part support barrel betterly.
Furthermore, two or more pairs of shear keys 6 are uniformly arranged on the inner wall of the full grouting main body sleeve 3. In this embodiment, in order to guarantee sufficient area of grabbing, increase and hold the setting of shear force key 6 symmetry limit baffle 8, and evenly be equipped with two pairs on the main part sleeve 3 inner wall that is fully grouted.
Further, the cross section of the additional shear key 6 is of a trapezoidal structure. In the embodiment, the cross section of the additional shear key 6 is of a trapezoidal structure, and compared with structures such as a triangle and an inverted cone, the area of the trapezoidal structure is large, and the lumbar support performance is good.
Further, an outward turning end cover 16 is formed at the upper end of the full grouting main body sleeve 3, and the upper part of the steel sleeve 7 is matched in the outward turning end cover 16. In this embodiment, it has the end cover 16 that turns up still integrated into one piece to be in full grout main part sleeve 3 upper end, sets up the screw thread on the outside inner wall, and steel sleeve 7 upper portion cooperates in the end cover 16 that turns up, improves the steadiness between full grout main part sleeve 3 and the steel sleeve 7, avoids the dislocation.
Furthermore, the lower opening of the steel sleeve 7 is also provided with a connecting end cover 11 which is propped against the full grouting main body sleeve 3, and a grout sealing plug 12 is matched in the connecting end cover 11. The strength of the grout sealing plug 12 is insufficient, so that a connecting end cover 11 which is pressed against the full grouting main body sleeve 3 is sleeved at the lower opening of the steel sleeve 7, the grout sealing plug 12 is matched in the connecting end cover 11, and the connecting end cover 11 is used as a connecting point of a compression end cover 13.
Further, a compression end cover 13 is arranged at the lower opening of the connecting end cover 11, and the grout sealing plug 12 is limited above the compression end cover 13. The pressing end cover 13 is sleeved, so that the pulp sealing plug 12 is further limited above the pressing end cover 13, and the capacity of bearing the pulp 5 is improved.
Obviously, the utility model discloses all design the structure that improves anti year in shear force key position, limit baffle position and grout sealing plug department, overall structure cooperation is strong, compares the sleeve of current monotonous structure, construction strength greatly increased.
The foregoing is a preferred embodiment of the present invention, and it should be understood that those skilled in the art can derive the related technical solutions through logic analysis, reasoning or experiment based on the present invention without creative efforts, and therefore, these related technical solutions should be within the protection scope of the present claims.
Claims (6)
1. The utility model provides a steel bar connection is with full grout sleeve, includes full grout main part sleeve (3) and locates square strip shear connector (2), grout mouth (10), grout outlet (4), grout sealing plug (12) and limit baffle (8) on full grout main part sleeve (3) inner wall, its characterized in that: the limiting baffle (8) is of a stepped ring structure, and reinforcing ribs (9) are also fixed on the inner walls of the full grouting main body sleeves (3) at the two sides of the limiting baffle (8); the inner wall of the full grouting main body sleeve (3) between the square strip shear keys (2) is also uniformly provided with holding shear keys (6); still include steel sleeve (7) and middle part support sleeve (15), in steel sleeve (7) are located in full grout main part sleeve (3) cooperation cover, middle part support sleeve (15) cover on steel sleeve (7) between grout mouth (10) and grout outlet (4).
2. The fully grouting sleeve for connecting the reinforcing steel bars as claimed in claim 1, wherein: more than two pairs of shear keys (6) are uniformly and symmetrically arranged on the inner wall of the full grouting main body sleeve (3).
3. The fully grouting sleeve for connecting the reinforcing steel bars as claimed in claim 2, wherein: the cross section of the additional shear key (6) is of a trapezoidal structure.
4. A fully grouted sleeve for reinforcing bar coupling according to claim 1, 2 or 3, wherein: an outward-turning end cover (16) is formed at the upper end of the full grouting main body sleeve (3), and the upper part of the steel sleeve (7) is matched in the outward-turning end cover (16).
5. The fully grouting sleeve for connecting the reinforcing steel bars as claimed in claim 4, wherein: the lower opening of the steel sleeve (7) is also provided with a connecting end cover (11) which is used for supporting the full grouting main body sleeve (3), and a grout sealing plug (12) is matched in the connecting end cover (11).
6. The fully grouting sleeve for connecting the reinforcing steel bars as claimed in claim 5, wherein: the lower opening of the connecting end cover (11) is also provided with a pressing end cover (13), and the grout sealing plug (12) is limited above the pressing end cover (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362987.2U CN212295345U (en) | 2020-03-20 | 2020-03-20 | Full grouting sleeve for steel bar connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362987.2U CN212295345U (en) | 2020-03-20 | 2020-03-20 | Full grouting sleeve for steel bar connection |
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| Publication Number | Publication Date |
|---|---|
| CN212295345U true CN212295345U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020362987.2U Active CN212295345U (en) | 2020-03-20 | 2020-03-20 | Full grouting sleeve for steel bar connection |
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| CN (1) | CN212295345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802771A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize half grout sleeve structure of sleeve reinforcing bar self-centering |
| CN113802772A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize full grout sleeve structure of sleeve reinforcing bar self-centering |
-
2020
- 2020-03-20 CN CN202020362987.2U patent/CN212295345U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802771A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize half grout sleeve structure of sleeve reinforcing bar self-centering |
| CN113802772A (en) * | 2021-08-20 | 2021-12-17 | 北京工业大学 | Can realize full grout sleeve structure of sleeve reinforcing bar self-centering |
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