CN211172717U - Connecting structure of grouting sleeve and reinforcing steel bar - Google Patents
Connecting structure of grouting sleeve and reinforcing steel bar Download PDFInfo
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- CN211172717U CN211172717U CN201921010196.7U CN201921010196U CN211172717U CN 211172717 U CN211172717 U CN 211172717U CN 201921010196 U CN201921010196 U CN 201921010196U CN 211172717 U CN211172717 U CN 211172717U
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Abstract
The utility model discloses a connecting structure of a grouting sleeve and a steel bar, which comprises a sleeve body and the steel bar inserted into the sleeve body and used for grouting connection with the sleeve body; the sleeve body is provided with a grouting hole and a grout outlet, a grouting cavity communicated with the grouting hole and the grout outlet is arranged in the sleeve body, the inner wall of the sleeve body is provided with a track groove, the middle part of the sleeve body is provided with an annular sliding groove butted with the track groove, the annular sliding groove is arranged on the inner wall of the sleeve body in a surrounding manner, one side of the annular sliding groove is provided with a clamping groove, and the clamping groove and the track groove are not on the same straight line; the tip of reinforcing bar is equipped with the boss that matches with the track groove and the screens groove of cover barrel. The utility model discloses a connection structure of grout sleeve and reinforcing bar can play the effect of riveting between the grout body and reinforcing bar, prevents in long-term use, and the reinforcing bar breaks away from the sleeve.
Description
Technical Field
The utility model relates to an assembly type structure connection technical field, concretely relates to connection structure of grout sleeve and reinforcing bar.
Background
In the building construction technology, there are three common steel bar connection modes:
firstly, sleeve extrusion connection joint: the joint is formed by plastic deformation of the steel sleeve of the connecting piece and tight occlusion of the ribbed steel bar through extrusion force. There are two forms, radial compression connection and axial compression connection. The axial extrusion connection is inconvenient to construct on site and the quality of the joint is not stable enough, so that the axial extrusion connection is not popularized; and the radial extrusion connection technology is adopted, so that the connection joint is popularized and used in a large area. The existing sleeve compression joint used in engineering is radial compression joint. Because of its excellent quality, the sleeve extrusion connection joint has been widely used in building engineering in our country from the beginning of the 90 s of the twentieth century.
II, taper thread connection joint: the joint is formed by the engagement of the tapered thread specially made on the end of the reinforcing steel bar and the tapered thread of the connecting piece. The birth of the taper thread connection technology overcomes the defects of the sleeve extrusion connection technology. The taper thread head is prefabricated in advance completely, the field connection occupies short construction period, the field operation is carried out only by using a torque wrench, equipment does not need to be moved, and an electric wire does not need to be pulled, and the taper thread head is deeply praised by each construction unit. However, the quality of the taper thread connection joint is not stable enough. The cross section area of the parent metal is weakened due to the small diameter of the machined thread, so that the strength of the joint is reduced, and generally, the actual tensile strength of the parent metal can only reach 85-95%. The taper thread connection technology has the characteristics of high construction speed and low joint cost, and is widely popularized and used since the early 90 s of the twentieth century, but the taper thread connection technology is gradually replaced by a straight thread connection joint due to the large defects.
Third, straight threaded connection connects the equal strength straight threaded connection and connects the international latest trend that the 90 s of the twentieth century reinforced bar connects, connect the quality to be stable and reliable, the joint strength is high, can be comparable with the sleeve and extrude the joint to connect, and have the construction of the taper thread to connect convenient, fast characteristic, therefore the appearance of the straight threaded connection technology has brought the qualitative leap for the connection technology of the reinforced bar. The straight thread connecting joint mainly comprises an upsetting straight thread connecting joint and a rolling straight thread connecting joint. The two processes adopt different processing modes, so that the bearing capacity of the thread at the end of the reinforcing steel bar is enhanced, and the purpose that the joint and the base material of the reinforcing steel bar are equal in strength is achieved.
The above methods have an important defect, the construction technology is complex, the construction period is long, the main reason is that the method of threaded connection is adopted for processing, thus a process of forming threads is generated, the process is to process the joint part of the steel bar, and the process of setting the threads after upsetting is complex because the joint part of the common steel bar is subjected to upsetting, and the construction process is complex, long in time consumption and high in cost.
And the telescopic connection technology of grout adopts a sleeve, with both ends trompil, adopts 2 reinforcing bars to insert the sleeve inside, carries out grout processing to sleeve inside at last for the inside concrete obturator that forms of sleeve, this kind of mode does not play the effect of riveting to the reinforcing bar, can make the reinforcing bar break away from the sleeve often. The other one is that to the reinforcing bar tip rise thick, rise in thick one section insert sleeve, and this kind of structure does not carry on spacingly to the thick position that rises, just adopts the grout obturator to fill it, and under the effect of external force, the thick portion that rises of reinforcing bar can continuous wearing and tearing grout obturator for it is not hard up to rise thick position, and structural stability can the utmost point be poor.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a connection structure of grout sleeve and reinforcing bar can play the effect of riveting between the cover barrel and reinforcing bar, prevents in long-term use, and the reinforcing bar breaks away from in the sleeve.
In order to solve the technical problem, the utility model provides a connecting structure of a grouting sleeve and a steel bar, which comprises a sleeve body and a steel bar inserted into the sleeve body and used for grouting connection with the sleeve body; the sleeve body is provided with a grouting hole and a grout outlet, a grouting cavity communicated with the grouting hole and the grout outlet is arranged in the sleeve body, the inner wall of the sleeve body is provided with a track groove, the middle part of the sleeve body is provided with an annular sliding groove butted with the track groove, the annular sliding groove is arranged on the inner wall of the sleeve body in a surrounding manner, one side of the annular sliding groove is provided with a clamping groove, and the clamping groove and the track groove are not on the same straight line; the tip of reinforcing bar is equipped with the boss that matches with the track groove and the screens groove of cover barrel.
The utility model discloses a preferred embodiment, further include the symmetry is provided with two track grooves on the inner wall of cover barrel one side of annular spout sets up the screens groove of two symmetries, the track groove with angle between the screens groove is 90, the tip matching of reinforcing bar is provided with the boss of two symmetric positions.
In a preferred embodiment of the present invention, the width of the track groove, the width of the locking groove and the width of the boss are the same.
The utility model discloses a preferred embodiment, further include sleeve body's both ends all are provided with the reinforcing bar inserted hole, sleeve body's middle part is provided with two annular spouts, the reinforcing bar can be followed the reinforcing bar inserted hole of both sides and inserted in sleeve body.
In a preferred embodiment of the present invention, the end face of the reinforcing bar inserting hole is inclined inward to form a taper closing-in.
In a preferred embodiment of the present invention, the reinforcing bar inserting opening is provided with a sealing rubber plug, and the sealing rubber plug is provided with a through hole for the reinforcing bar to pass through.
The utility model discloses a preferred embodiment, further include the inner wall orientation of the sleeve body axis direction protrusion forms the shear force groove, at the perpendicular to on the cross-section of sleeve body axis the shear force groove is oval.
In a preferred embodiment of the present invention, the sleeve further comprises a plurality of parallel shear grooves along the length direction of the sleeve body.
The utility model has the advantages that: the utility model discloses set up the boss at the end of reinforcing bar, at the internal track groove and the screens groove that matches of boss that set up of cover, the boss at reinforcing bar end inserts the cover barrel along the track groove in, inserts and sets up in the annular spout of cover barrel inner wall, at annular spout internal rotation reinforcing bar, goes into the screens groove with the boss card of reinforcing bar at last, and the back is gone into to the internal pouring grout liquid of sleeve again to the card. The connecting mode of the reinforcing steel bar and the sleeve body which are arranged by adopting the structure plays a role in riveting between the sleeve body and the reinforcing steel bar, and prevents the reinforcing steel bar from being separated from the sleeve in the long-term use process.
Drawings
Fig. 1 is a schematic structural view of a grout sleeve according to the present invention;
fig. 2 is a schematic structural view of the annular chute and the limiting groove of the present invention.
The reference numbers in the figures illustrate: 1. a sleeve body; 11. grouting holes; 12. a slurry outlet; 13. grouting a cavity; 14. inserting a reinforcing steel bar into the opening; 2. reinforcing steel bars; 21. a boss; 3. a track groove; 4. an annular chute; 5. a clamping groove; 6. sealing the rubber plug; 7. and (4) a shear groove.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, an embodiment of a connection structure of a grouting sleeve and a steel bar of the present invention includes a sleeve body 1 and a steel bar 2 inserted into the sleeve body 1 for grouting connection with the sleeve body 1; the sleeve body 1 is provided with a grouting hole 11 and a grout outlet 12, a grouting cavity 13 communicated with the grouting hole 11 and the grout outlet 12 is arranged in the sleeve body 1, the inner wall of the sleeve body 1 is provided with a track groove 3, the middle part of the sleeve body 1 is provided with an annular sliding groove 4 butted with the track groove 3, the annular sliding groove 4 is arranged on the inner wall of the sleeve body 1 in a surrounding manner, one side of the annular sliding groove 4 is provided with a clamping groove 5, and the clamping groove 5 and the track groove 3 are not on the same straight line; the tip of reinforcing bar 2 is equipped with the boss 21 that matches with the track groove 3 of the cover barrel 1 and screens groove 5, the width of track groove 3, the width in screens groove 5 and the width homogeneous phase of boss 21 are the same, boss 21 can slide in track groove 3, can slide in annular spout 4, also can block into in screens groove 5.
Specifically, the operation process of the present example is: the boss 21 of the end of the reinforcing steel bar 2 is inserted into the sleeve body 1 along the track groove 3 and is inserted into the annular sliding groove 4 formed in the inner wall of the sleeve body 1, the reinforcing steel bar 2 is rotated in the annular sliding groove 4, finally, the boss 21 of the reinforcing steel bar 2 is clamped into the clamping groove 5, grouting liquid is injected into the sleeve body 1 after the clamping, and therefore the reinforcing steel bar 2 is fixed on the inner wall of the sleeve body 1.
Refer to fig. 2 and show, the symmetry is provided with two track grooves 3 on the inner wall of cover barrel 1 one side of annular chute 4 sets up the screens groove 5 of two symmetries, track groove 3 with angle between the screens groove 5 is 90, the tip matching of reinforcing bar 2 is provided with the boss 21 of two symmetric positions, through setting up two boss 21, inserts the position that can keep reinforcing bar 2 at reinforcing bar 2 in-process of cover barrel 1, makes reinforcing bar 2 male more firm, and two boss 21 cards are gone into in the screens groove 5 simultaneously, make reinforcing bar 2 more firm in screens groove 5.
Specifically, the both ends of the sleeve body 1 all are provided with reinforcing bar inserted hole 14, the middle part of the sleeve body 1 is provided with two annular chutes 4, during reinforcing bar 2 can insert the sleeve body 1 from the reinforcing bar inserted hole 14 of both sides, this embodiment adopts the connected mode of full pouring, sleeve body 1 is used for being fixed in of two reinforcing bars 2 to be connected, in other embodiments, also can with adopt the connected mode of half pouring, one section reinforcing bar 2 adopts to pour into the connection, and another section reinforcing bar 2 adopts threaded connection.
Preferably, the end face of the reinforcing bar insertion opening 14 is inclined inward to form a taper closing, so that the grouting liquid in the grouting cavity 13 is not easy to slide outward from the reinforcing bar insertion openings 14 at the two ends after solidification and molding.
Preferably, reinforcing bar inserted hole 14 department is provided with sealed plug 6, set up the through-hole that supplies reinforcing bar 2 to pass on the sealed plug 6, set up sealed plug 6 and prevent at the grout in-process, the grout flows from the reinforcing bar inserted hole 14 department of both sides.
Specifically, the inner wall of the sleeve body 1 moves towards the 1 axial direction protrusion of sleeve body forms the shear force groove 7, is perpendicular to on the cross-section of 1 axial of sleeve body the shear force groove 7 is oval, follows the length direction of sleeve body 1 is provided with many parallel shear force grooves 7, shear force groove 7 increases the cohesive force between grout and sleeve body 1, and the emergence of slippage is connected in the prevention.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (8)
1. A connecting structure of a grouting sleeve and a steel bar is characterized by comprising a sleeve body and the steel bar inserted into the sleeve body and connected with the sleeve body in a grouting mode; the sleeve body is provided with a grouting hole and a grout outlet, a grouting cavity communicated with the grouting hole and the grout outlet is arranged in the sleeve body, the inner wall of the sleeve body is provided with a track groove, the middle part of the sleeve body is provided with an annular sliding groove butted with the track groove, the annular sliding groove is arranged on the inner wall of the sleeve body in a surrounding manner, one side of the annular sliding groove is provided with a clamping groove, and the clamping groove and the track groove are not on the same straight line; the tip of reinforcing bar is equipped with the boss that matches with the track groove and the screens groove of cover barrel.
2. The connection structure of a grouting sleeve and a steel bar according to claim 1, wherein two track grooves are symmetrically formed on the inner wall of the sleeve body, two symmetrical locking grooves are formed on one side of the annular sliding groove, the angle between the track grooves and the locking grooves is 90 degrees, and two bosses are symmetrically formed at the end portions of the steel bar in a matching manner.
3. The coupling structure of a grout sleeve and reinforcing bars according to claim 2, wherein the width of the track groove, the width of the catching groove and the width of the boss are the same.
4. The connection structure of a grout sleeve and reinforcing bars according to claim 1, wherein reinforcing bar insertion openings are formed at both ends of the sleeve body, two annular slide grooves are formed at the middle portion of the sleeve body, and the reinforcing bars can be inserted into the sleeve body from the reinforcing bar insertion openings at both sides.
5. The grouting sleeve and reinforcing steel bar connecting structure of claim 4, wherein the end surface of the reinforcing steel bar insertion port is inclined inward to form a tapered closing-in.
6. The connection structure of a grout sleeve and steel bars according to claim 4, wherein a sealing rubber plug is provided at the insertion port of the steel bars, and the sealing rubber plug is provided with a through hole for the steel bars to pass through.
7. A coupling structure of a grout sleeve and reinforcing bars according to claim 1, wherein the inner wall of the sleeve body is protruded toward the axial direction of the sleeve body to form a shear groove, and the shear groove is formed in an elliptical shape in a cross section perpendicular to the axial direction of the sleeve body.
8. A grout sleeve and reinforcing bar coupling structure of claim 7, wherein a plurality of parallel shear grooves are provided along the length direction of the sleeve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921010196.7U CN211172717U (en) | 2019-07-01 | 2019-07-01 | Connecting structure of grouting sleeve and reinforcing steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921010196.7U CN211172717U (en) | 2019-07-01 | 2019-07-01 | Connecting structure of grouting sleeve and reinforcing steel bar |
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| CN211172717U true CN211172717U (en) | 2020-08-04 |
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| CN201921010196.7U Active CN211172717U (en) | 2019-07-01 | 2019-07-01 | Connecting structure of grouting sleeve and reinforcing steel bar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851868A (en) * | 2020-08-07 | 2020-10-30 | 昆山市天工建设工程有限公司 | Reinforced structure of reinforced concrete building house and construction method |
| CN112900752A (en) * | 2021-02-08 | 2021-06-04 | 山东建筑大学 | Buckle type steel bar connection grouting sleeve and construction process |
-
2019
- 2019-07-01 CN CN201921010196.7U patent/CN211172717U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851868A (en) * | 2020-08-07 | 2020-10-30 | 昆山市天工建设工程有限公司 | Reinforced structure of reinforced concrete building house and construction method |
| CN112900752A (en) * | 2021-02-08 | 2021-06-04 | 山东建筑大学 | Buckle type steel bar connection grouting sleeve and construction process |
| CN112900752B (en) * | 2021-02-08 | 2022-07-29 | 山东建筑大学 | Buckle type steel bar connection grouting sleeve and construction process |
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