CN210597886U

CN210597886U - Grouting sleeve for connecting reinforcing steel bars

Info

Publication number: CN210597886U
Application number: CN201920814883.8U
Authority: CN
Inventors: 时略
Original assignee: Hubei Qiandao New Material Co ltd
Current assignee: Hubei Qiandao New Material Co ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-05-22
Anticipated expiration: 2029-05-31

Abstract

The utility model provides a grouting sleeve for connecting steel bars, which comprises a sleeve barrel body, a grouting hole, a grout outlet and a steel bar piece, wherein the grouting hole and the grout outlet are arranged on the outer wall of the sleeve barrel body, a shear groove which can be matched with the steel bar piece is arranged on the inner wall of the sleeve barrel body, a shear groove rib is fixedly arranged in the shear groove, a transverse rib is fixedly connected with the inner wall of the sleeve barrel body and is fixedly connected with the shear groove rib, a limiting piece which is used for limiting the sliding of the steel bar piece inserted into the sleeve barrel body along the axial direction of the sleeve barrel body is fixedly connected with the inner wall of the middle part of the sleeve barrel body, the sizing agent is matched with the steel bar piece extending into the inner cavity of the sleeve barrel body through the arranged shear groove, when the sizing agent is grouted from the grouting hole, the sizing agent enters into the space between the shear groove and the steel bar piece and is gradually solidified, thereby effectively fixedly connecting the steel bar piece, the adhesive strength between the slurry and the inner wall of the sleeve is improved.

Description

Grouting sleeve for connecting reinforcing steel bars

Technical Field

The utility model relates to a precast concrete component connects construction technical field, concretely relates to grout sleeve for steel bar connection.

Background

The connection mode of the grouting sleeve for connecting the steel bars is that the steel bar pieces between the prefabricated components are respectively inserted into two ends of the full grouting sleeve, slurry is injected into an inner cavity of the full grouting sleeve through grouting holes formed in the wall of the sleeve, and the connection of the components is realized through mechanical occlusion and friction between the grouting material and the steel bar pieces as well as between the grouting sleeve. However, the wall of the inner cavity of the existing grouting sleeve is of a smooth structure, and injected slurry cannot be well adhered to the wall of the sleeve in the solidification process, so that the sleeve and the reinforcing steel bar piece are not firmly connected; meanwhile, the anti-shearing effect of the existing grouting sleeve is poor when the existing grouting sleeve is subjected to a large shearing force, so that the grouting sleeve is easily damaged or broken, and further the hidden trouble that the connection between prefabricated parts is not firm exists.

Disclosure of Invention

An object of the utility model is to overcome the not enough of above-mentioned technique, provide a simple structure, preparation low cost, can improve thick liquids and sleeve inner wall adhesive strength and the strong grout sleeve for the steel bar connection of anti-shear capacity.

For realizing foretell technical purpose, the utility model provides a grout sleeve for steel bar connection, including sleeve barrel, grout hole and play grout hole and reinforcing bar spare of setting on sleeve barrel outer wall, set up on the inner wall of sleeve barrel can with the shear force groove that reinforcing bar spare suited, shear force inslot fixed mounting has the shear force groove muscle, just the inner wall of sleeve barrel still fixedly connected with horizontal muscle just horizontal muscle with shear force groove muscle fixed connection still fixedly connected with is used for injecing on the inner wall at sleeve barrel middle part inserts reinforcing bar spare in the sleeve barrel is followed the gliding locating part of axis direction of sleeve barrel.

The utility model has the advantages that: cooperate with the reinforcing bar spare that stretches into sleeve barrel inner chamber through the shear force groove that is equipped with, when thick liquids irritate from the grout downthehole, thereby the thick liquids will enter into the space between shear force groove and the reinforcing bar spare and solidify gradually effectually with reinforcing bar spare and grout cover fixed connection and get up, the adhesive strength of thick liquids and intraductal wall of casing has been improved, and meanwhile, set up horizontal muscle and shear force groove muscle in the sleeve, set up formation cross structure through horizontal muscle and shear force groove muscle mutually perpendicular, with the sleeve of improving when receiving the shearing force the anti-shear ability of grout sleeve, avoid grout sleeve receive the shearing force impaired and lead to being connected insecure between the prefabricated component.

On the basis of the technical scheme, the utility model discloses following improvement has still been made.

Furthermore, the transverse ribs and the shear groove ribs are fixedly connected to the inner wall of the sleeve barrel in a shape like a Chinese character 'jing'.

The beneficial effect of adopting the further technical scheme is that: form "well" font through horizontal muscle and the mutual staggered connection of shear force groove muscle and arrange, adopt this structure on the one hand the increase to flow into the interior thick liquids of sleeve barrel and the barrel inner wall between area of contact improve thick liquids solidify the back and the sleeve inner wall between frictional force make the sleeve pack thick liquids more abundant, on the other hand improve the anti-shear capacity of grout sleeve when receiving great shearing force for sleeve life is longer, and the connection between the prefabricated component is more firm.

Further, the axis of locating part with the axis of sleeve barrel coincides mutually.

The beneficial effect of adopting the further technical scheme is that: by adopting the structure, the limiting part is coincided with the central axis of the sleeve barrel, so that the limiting part can limit the movement of the steel bar piece inserted into the sleeve barrel along the axial direction of the sleeve barrel.

Further, the limiting part is a trapezoidal limiting part.

The further technical scheme has the beneficial effect that the trapezoidal limiting block is adopted, so that the movement of the steel bar piece in the axial direction in the sleeve barrel body is effectively limited.

Further, the limiting part is a steel bar limiting ring.

The beneficial effect of adopting the further technical scheme is that: through adopting the reinforcing bar spacing ring, can effectual injecing the slip of the axis direction of reinforcing bar spare in the sleeve to the effectual use amount that saves the reinforcing bar spare reduces use cost.

Further, still install at sleeve barrel both ends port department be used for with reinforcing bar spare matched with sealing member.

The beneficial effect of adopting the further technical scheme is that: the reinforcing steel bar piece extending into the sleeve barrel is sealed through the sealing piece, and the slurry is prevented from leaking out of the sleeve barrel, so that the slurry in the sleeve barrel is filled more fully, and the bearing capacity of the grouting sleeve barrel is better.

Further, the sealing element is an elastic rubber sealing ring.

The beneficial effect of adopting the further technical scheme is that: by adopting the elastic rubber sealing ring, the slurry in the sleeve can be effectively prevented from leaking and flowing out, and the bearing capacity of the sleeve is improved.

Furthermore, the grouting hole and the grout outlet are arranged on the same side of the outer wall of the sleeve barrel.

The beneficial effect of adopting the further technical scheme is that: by adopting the structure, an operator can effectively and conveniently carry out construction operation.

Further, the aperture of the grout outlet is smaller than that of the grout hole.

The beneficial effect of adopting the further technical scheme is that: by adopting the structure, the contact time of the slurry in the sleeve can be effectively prolonged, and the slurry can be fully filled in the sleeve.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a full sectional view of A-A in FIG. 1.

Fig. 3 is a cross-sectional view of B-B in fig. 2.

In the figure: 1-sleeve barrel, 2-grouting hole, 3-grout outlet, 4-reinforcing steel bar piece, 5-shear groove, 6-shear groove rib, 7-transverse rib, 8-limiting piece and 9-sealing piece.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the above objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and preferred embodiments, it should be understood that the embodiments described in the present invention are only used for explaining the present invention, and are not used for limiting the present invention.

Referring to fig. 1 ~ 3, the utility model provides a steel bar connection grout sleeve, sleeve barrel 1, grout hole 2 and grout outlet 3 and reinforcing bar spare 4 of setting on 1 outer wall of sleeve barrel, set up on sleeve barrel 1's the inner wall can with reinforcing bar spare 4 adaptive shear force groove 5, fixed mounting has shear force groove muscle 6 in the shear force groove 5, and at sleeve barrel 1's inner wall still horizontal muscle 7 of fixedly connected with and horizontal muscle 7 and 6 fixed connection of shear force groove muscle, it is used for injecing the gliding locating part 8 of the axis direction of reinforcing bar spare 4 edge sleeve barrel 1 that inserts in sleeve barrel 1 to go back fixedly connected with on the inner wall at sleeve barrel 1 middle part. Wherein, cooperate with the reinforcing bar spare 4 that stretches into the 1 inner chamber of sleeve barrel through the shear force groove 5 that is equipped with, when the thick liquids is poured into from grout hole 2, thereby the thick liquids will enter into in the space between shear force groove 5 and the reinforcing bar spare 4 and solidify gradually effectually get up reinforcing bar spare 4 and grout cover fixed connection, the adhesive strength of thick liquids and intraductal wall of casing has been improved, meanwhile, set up horizontal muscle 7 and shear force groove muscle 6 in the sleeve, set up formation cross structure through horizontal muscle 7 and shear force groove muscle 6 mutually perpendicular, with the sleeve of improvement when receiving the shearing force anti-shearing ability of grout sleeve, it is impaired and lead to the connection insecure between the prefabricated component to avoid the grout sleeve to receive the shearing force.

In the preferred embodiment of the present invention, referring to fig. 1,2 and 3, the transverse ribs 7 and the shear groove ribs 6 are fixedly connected to the inner wall of the sleeve barrel 1 in a shape like a Chinese character 'jing'; wherein, form "well" font through horizontal muscle 7 and the mutual staggered connection of shear force groove muscle 6 and arrange, adopt this structure on the one hand to increase the area of contact between thick liquids that flow into sleeve barrel 1 and the barrel inner wall and improve the thick liquids and solidify the back and the sleeve inner wall between frictional force make the sleeve pack thick liquids more abundant, on the other hand improves the anti-shear capacity of grout sleeve when receiving great shearing force for sleeve life is longer, and the connection between the prefabricated component is more firm. The central axis of the limiting piece 8 is coincident with the central axis of the sleeve barrel 1; wherein, locating part 8 is trapezoidal stopper or reinforcing bar spacing ring, adopt above-mentioned structure, through coinciding with locating part 8 and sleeve barrel 1's the central axis mutually, ensure the restriction that locating part 8 removed along sleeve barrel 1's axis direction to reinforcing bar spare 4 that inserts in sleeve barrel 1, and simultaneously, through adopting reinforcing bar spacing ring or trapezoidal stopper, can effectual limited reinforcing bar spare 4 the slip of the axis direction in the sleeve, thereby effectual use amount of saving reinforcing bar spare 4, and the use cost is reduced.

In the preferred embodiment of the present invention, referring to fig. 1, sealing elements 9 for matching with the reinforcing steel bar 4 are further installed at two ports of the sleeve barrel 1, wherein the sealing elements 9 are elastic rubber sealing rings; adopt above-mentioned structure, seal up the reinforcing bar spare 4 that stretches into in the sleeve barrel 1 through sealing member 9, prevent that thick liquids from leaking the outflow in the sleeve to make the thick liquids in the sleeve fill more fully, grout telescopic bearing capacity is better. Meanwhile, the grouting hole 2 and the grout outlet 3 are arranged on the same side of the outer wall of the sleeve barrel 1, and the aperture of the grout outlet 3 is smaller than that of the grouting hole 2; adopt above-mentioned structure on the one hand to be convenient for the operator to carry out construction operation, on the other hand, to pouring into thick liquids in grout hole 2 and make thick liquids go on smoothly in the grout sleeve wherein remaining thick liquids flow from grout outlet 3, through setting grout outlet 3 to be less than grout outlet 2, can effectual extension thick liquids contact time in the sleeve, guarantee that thick liquids can fully fill in the sleeve.

The specific working principle is as follows:

when the grouting sleeve is used for grouting two ends of a sleeve barrel body 1 of the sleeve, reinforcing steel bars 4 are inserted into the sleeve barrel body 1 and simultaneously sealed through elastic rubber sealing rings, and the extending reinforcing steel bars 4 are limited along the axial direction of the sleeve through limiting parts 8 arranged on the inner wall of the sleeve, so that the central axes of the reinforcing steel bars 4 and the sleeve barrel body 1 are coincident, the problem of infirm connection between components caused by uneven stress of the reinforcing steel bars 4 and the sleeve barrel body 1 is solved, when slurry is injected into the sleeve barrel body 1 through a grouting hole 2, the slurry immediately flows into a gap between a shear groove 5 and the reinforcing steel bars 4 and is solidified to effectively fixedly connect the reinforcing steel bars 4 and the sleeve, the bonding strength between the slurry and the inner wall of the sleeve is improved, when the whole sleeve barrel body 1 is fully filled with the slurry, the residual slurry flows out from a slurry outlet 3, wherein the aperture of grout outlet 3 is far less than the aperture of grout hole 2, can improve the dwell time of thick liquids in the sleeve from this and guarantee that thick liquids can be more abundant fill whole grout sleeve, thereby improve grout sleeve's bearing capacity, and horizontal muscle 7 and the 6 font structures of formation alternately "well" of shear force groove muscle through the installation in the sleeve, when the sleeve received great shearing force, can effectual improvement grout sleeve anti-shear capacity through this structure, make sleeve life longer, connection between the prefabricated component is more firm.

The utility model provides a grout sleeve for steel bar connection, cooperate with the reinforcing bar spare 4 that stretches into 1 inner chamber of sleeve barrel through the shear force groove 5 that is equipped with, when the thick liquids is poured into from grout hole 2, thereby the thick liquids will enter into in the space between shear force groove 5 and reinforcing bar spare 4 and solidify gradually effectually get up reinforcing bar spare 4 and grout cover fixed connection, the adhesive strength of thick liquids and sleeve pipe inner wall has been improved, meanwhile, set up horizontal muscle 7 and shear force groove muscle 6 in the sleeve, set up formation cross structure through horizontal muscle 7 and shear force groove muscle 6 mutually perpendicular, with the ability of improvement sleeve grout sleeve's anti-shear when receiving the shearing force, it is impaired and lead to the insecure connection between the prefabricated component to avoid grout sleeve to receive the shearing force.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a grout sleeve for steel bar connection, includes sleeve barrel (1), sets up grout hole (2) and grout outlet (3) and reinforcing bar spare (4) on sleeve barrel (1) outer wall, its characterized in that, set up on the inner wall of sleeve barrel (1) can with reinforcing bar spare (4) adaptive shear force groove (5), fixed mounting has shear force groove muscle (6) in shear force groove (5), and is in the inner wall of sleeve barrel (1) still fixedly connected with horizontal muscle (7) just horizontal muscle (7) with shear force groove muscle (6) fixed connection still fixedly connected with on the inner wall at sleeve barrel (1) middle part is used for injecing and inserts reinforcing bar spare (4) in sleeve barrel (1) are followed the gliding locating part of axis direction (8) of sleeve barrel (1).

2. A grouting sleeve for connecting reinforcement according to claim 1, characterised in that the transverse ribs (7) and the shear groove ribs (6) are fixedly connected to the inner wall of the sleeve barrel (1) in a cross-shape.

3. A grouting sleeve for connecting steel bars according to claim 1, characterised in that the central axis of the stop piece (8) coincides with the central axis of the sleeve barrel (1).

4. A grouting sleeve for connecting reinforcement according to claim 3, characterised in that the stop element (8) is a trapezoidal stop element.

5. A grouting sleeve for connecting reinforcement according to claim 3, characterised in that the retaining element (8) is a reinforcement retaining ring.

6. A grouting sleeve for connecting reinforcement according to claim 1, characterised in that sealing elements (9) for fitting with the reinforcement (4) are further installed at both ends of the sleeve barrel (1).

7. A grouting sleeve for connecting reinforcement according to claim 6, characterised in that the sealing element (9) is an elastic rubber sealing ring.

8. A grouting sleeve for connecting reinforcement according to claim 1, characterised in that the grouting holes (2) and the grout outlet (3) are arranged on the same side of the outer wall of the sleeve barrel (1).

9. A grouting sleeve for connecting reinforcement according to claim 8, characterised in that the diameter of the grout outlet (3) is smaller than the diameter of the grout outlet (2).