CN205742754U - A kind of grout sleeve and prefabricated component - Google Patents

A kind of grout sleeve and prefabricated component Download PDF

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Publication number
CN205742754U
CN205742754U CN201620364531.3U CN201620364531U CN205742754U CN 205742754 U CN205742754 U CN 205742754U CN 201620364531 U CN201620364531 U CN 201620364531U CN 205742754 U CN205742754 U CN 205742754U
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China
Prior art keywords
sleeve
sleeve body
steel lobe
grout
reinforcing bar
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CN201620364531.3U
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Chinese (zh)
Inventor
陈定球
俞大有
刘斌
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China Mingsheng Drawin Technology Investment Co Ltd
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China Mingsheng Drawin Technology Investment Co Ltd
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Priority to CN201620364531.3U priority Critical patent/CN205742754U/en
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Abstract

This utility model belongs to building engineering field, specifically disclose a kind of grout sleeve and prefabricated component, described grout sleeve includes sleeve body, described sleeve body is provided with grouting mouth and air vent, described sleeve body both ends open, is provided with fixture in the middle part of described sleeve body inner chamber, the inwall of described sleeve body is provided with steel lobe, the thickness of described steel lobe is become larger to middle part by sleeve body two ends, and the inwall of described steel lobe is provided with and inside contracts step.The setting of this utility model steel lobe increases sleeve body integral rigidity, and reduces wall thickness in the case of external diameter is identical, adds grouting material so that be in the milk more closely knit.Additionally, the slurry poured into forms the lock solid structure matched with sky in sleeve and steel lobe in sleeve body, the anchorage reliability of reinforcing bar is greatly improved;This utility model can realize reinforcing bar and the most axially controls and radially position, it is ensured that the positioning precision between reinforcing bar and grout sleeve.

Description

A kind of grout sleeve and prefabricated component
Technical field
This utility model belongs to building engineering field, particularly relates to a kind of grout sleeve and prefabricated component.
Background technology
In traditional cast-in-place concrete structure, the connection of reinforcing bar, using overlap joint to connect, be welded to connect or compression sleeve more Deng mechanical joining methods, the construction of bar connecting is complex and it is necessary to complete the connection of reinforcing bar, nothing before cast concrete Method realizes the connection of reinforcing bar between prefabricated component, thus cannot be carried out prefabricated construction.
In prior art, the bar connecting between assembly concrete architectural prefab needs to use sleeve grouting to connect, High-performance water cement mortar, water is irrigated in two connected reinforcing bars are inserted metal sleeve and in the space between sleeve and reinforcing bar Cement mortar hardening after, mutual build-in between three thus realize the connection of reinforcing bar.As patent CN 105133795 A discloses one Planting reducing type half grout sleeve, use seamless steel pipe as main body tube, main body tube inwall is male and fomale(M&F), main body tube upper end and circular cone The larger diameter end of pipe connects, and the smaller diameter end of conical tube connects with cylindrical tube one end.Above-mentioned sleeve add a conical pipe and Play the effect of reducing so that this grout sleeve is easily attached reinforcing bar, and makes it deform so that it is through extruding with to be connected reinforcing bar tight Contiguity is touched.But in above-mentioned grout sleeve, the setting of conical pipe makes the internal diameter of this part diminish suddenly, owing to reinforcing bar has necessarily Rigidity, be difficult to so that reinforcing bar to be connected on the same line, reinforcing bar even cannot be extend into the inside of sleeve, be subject to Existing defects in power.
In sum, a kind of axially control being capable of reinforcing bar of exploitation and radial direction location are needed badly, it is ensured that reinforcing bar and grouting Positioning precision between sleeve, reasonable stress, cost savings, the grout sleeve of Grouted density can be effectively improved simultaneously.
Utility model content
The purpose of this utility model is to provide and a kind of is capable of axially controlling and radially location of reinforcing bar, it is ensured that reinforcing bar with Positioning precision between grout sleeve, reasonable stress, cost savings, the grout sleeve of Grouted density can be effectively improved simultaneously, And application has the prefabricated component of this grout sleeve.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of grout sleeve, including sleeve body, and described sleeve body It is provided with grouting mouth and air vent, described sleeve body both ends open, in the middle part of described sleeve body inner chamber, is provided with fixture, described The inwall of sleeve body is provided with steel lobe, and the thickness of described steel lobe is become larger to middle part by sleeve body two ends, described steel lobe Inwall is provided with and inside contracts step.It should be noted that the step that inside contracts of indication refers to the thickness at step set by steel lobe suddenly herein Diminishing, the inwall of steel lobe forms an inner shrinking structure towards the inwall of sleeve body the most herein.
During grout sleeve application, in the manufacturing process of prefabricated component, grout sleeve is embedded in prefabricated component in advance, embedded bar One end through sleeve body is connected with fixture, and the other end of sleeve body connects outside prefabricated component, is carrying out steel reinforcement abutting joints Time, reinforcing bar stretches to sleeve body inner chamber, owing to steel lobe is the most thickening to middle part by end, the inside in sleeve body divide by Gradual change is little, and after reinforcing bar enters inner chamber, the termination of reinforcing bar is moved to fixture under the constraint of steel lobe inwall, until the end of reinforcing bar Being connected with fixture, so, in the docking operation of reinforcing bar, sleeve body can realize accurate axially control, in fact to reinforcing bar Now radially position, it is ensured that the positioning precision between reinforcing bar and grout sleeve, under preferable case, be i.e. provided with multiple steel lobe, steel lobe Size and consistency of thickness, and when being symmetrical arranged, can make to dock reinforcing bar on the same line, reasonable mechanical;Reinforcing bar can be made simultaneously Being positioned at the central part of inner chamber, so after grouting, the thickness of the grouting material of reinforcing bar surrounding keeps consistent, improves Grouted density, increases Add the grouting material bond stress to reinforcing bar.It is pointed out that the thickness of described steel lobe is leaning in order to reach above-mentioned technique effect Can not be too big at nearly fixture, reinforcing bar be ensure that can be connected with fixture.
It addition, inside contract the setting of ladder, the grouting space at this can be made to become big, beneficially grouting material flows to middle part, Ensure that grouting material fills whole inner chamber, improve Grouted density.It addition, when after grouting material molding, the interior intracavity shape of sleeve body Becoming and inner chamber and the grout blanket of steel lobe mating shapes, grout blanket becomes big, i.e. suddenly inside contracting its size at step from outside to inside Form interior big outer little solid-state structure at step inside contracting, and embed mutually locking with steel lobe, add the anti-of sleeve joint portion The ability of shearing force and tensile strength, therefore the globality of binding site is more preferable.
The setting of steel lobe increases sleeve body integral rigidity, on the premise of meeting rigidity, can suitably reduce sleeve Body wall thickness, saves material.In the case of external diameter is identical, reduces wall thickness simultaneously, adds grouting material so that grouting is more encrypted Real, reinforcing bar is higher with the adhesive property of sleeve body entirety.Should be appreciated that described steel lobe can be and sleeve body one-piece casting Molding, it is possible to be cutting processing molding, it is also possible to be to be arranged on intracavity in sleeve body in work progress, with sleeve body activity Connect.Certainly, steel lobe arrange position with grouting mouth and steam vent set by position not overlapping.
Further, the inwall of described sleeve body is provided with the steel lobe of more than two lobes.Steel lobe lobe number main basis is set Depending on the size of sleeve, steel lobe can use the lobe number such as two lobes, three lobes so that the regulation space of sleeve body is bigger.
Further, the diameter of reinforcing bar to be connected it is less than between described steel lobe along the distance that the inner chamber of sleeve body is circumferential.As This is arranged, it is to avoid during construction reinforced bar docking, reinforcing bar inserts in the seam between steel lobe, it is achieved not docking, strengthens difficulty of construction.
Further, described steel lobe was offered slurry hole or led stock tank.Cross to starch hole or lead arranging of stock tank and on the one hand ensure to fill Slurry has enough flowing spaces to middle part when flowing, enrich whole grout sleeve, simultaneously can be by the gap between steel lobe Grouting material connects into entirety, increases the adhesion between sleeve body and grouting material, and the globality of grouting material is higher, and then effectively Increase the grouting material bond stress to reinforcing bar.
Further, described cross slurry hole or lead circumferentially disposed along sleeve of stock tank.So, by crossing slurry hole or leading stock tank by steel Gap connection between lobe.
Further, the bottom of described sleeve body end inner chamber is provided with annular protrusion.During grouting, in order to avoid filling Slurry, first to open outer end overflow, arranges annular protrusion in the bottom of sleeve body end inner chamber, so grouting material is played one Fixed barrier effect so that grouting material can improve Grouted density the most smoothly to sleeve body internal flow.
Further, described steel lobe is in the shape of a spiral.It is arranged such, it is possible to increase the gmatjpdumamics between steel lobe and grouting material, simultaneously Guide grouting material to flow in sleeve body to a certain extent, be effectively improved Grouted density.
Further, described steel lobe is provided with groove or projection.Groove or the projection of certain depth are set on steel lobe, can increase Add the contact area between steel lobe and grouting material, to increase the gmatjpdumamics between itself and grouting material so that reinforcing bar and sleeve body Between power transmission more uniform.Should be appreciated that described groove or projection can be arranged on sidewall and/or the inwall of steel lobe, described Groove or projection can be horizontal, vertical or annular is arranged.If offering groove, can be provided in steel lobe sidewall middle part or Groove, near one end of sleeve body wall, is especially opened in steel lobe sidewall near one end of sleeve body wall, can increase by sidewall The grouting space of big grouting material, and increase the contact area of steel lobe, sleeve lining and grouting material simultaneously.
Further, described steel lobe inwall is by the inside corrugated extension in end.On the one hand, due to the inside of sleeve body Dividing and taper into fixture 4, be unfavorable for that grouting material flows to middle part, steel lobe uses undulatory inwall can ensure that grouting material has Enough flowing spaces and the effect of water conservancy diversion grouting material, can be effectively improved Grouted density, on the other hand, can be effectively increased steel The concavity and convexity of lobe inwall, and then increase the gmatjpdumamics between grouting material and steel lobe, improve the anchoring strength of reinforcing bar.Under the conditions of this, The thickness of above-mentioned steel lobe become larger to middle part by sleeve body two ends refer on overall trend the most thickening, and not exclusively Being applicable to the thickness change of steel lobe local, reflection is steel lobe thickness overall variation trend.
Further, described fixture is threaded mouth or fixing bolt.So, it is ensured that the company of sleeve both sides reinforcing bar Connect and fix.
Further, described sleeve body outer surface is matsurface.When grout sleeve is as built-in fitting, sleeve body appearance Face uses rough surface, adds the anchor force between grout sleeve and concrete.
Further, the end of described sleeve body is provided with closing device, and described closing device is provided with jack hole.So set Put, it is to avoid grouting material before condensing hardening from sleeve body end spilling.During use, first reinforcing bar is passed on closing device Jack hole, seals after completing the docking of reinforcing bar, then carries out grouting operation.
Further, described closing device is elastic seal ring.
Further, described closing device uses screw thread or shackle member to be connected with sleeve body.So, closing device and sleeve Body is formed and is reliably connected, and can avoid in filling process, backs down envelope due to impulsive force and the gravity of itself of grouting material The phenomenon of mouth device occurs.
Further, the two side of described closing device is provided with anchoring projection.Being arranged such, closing device can be with its both sides Grouting material and in-situ layer form certain anchor force, indirectly strengthen the sleeve body connection with the two.
Further, described closing device is lock sleeve, and the inner chamber interference of described lock sleeve and described sleeve body end is joined Closing, described lock sleeve is mild steel or prepared by spring steel.It is arranged such, after completing the docking of reinforcing bar, during sealing, by lock sleeve inward Push away, tapered into middle part by end owing to the inside of sleeve body divides, cause lock sleeve generation elastic deformation, and then tightly By reinforcing bar pin, reinforcing bar can be made not swing in filling process.It should be noted that lock sleeve uses loop configuration Time, the cavity ends of sleeve body is not provided with steel lobe, certainly, when the cavity ends of sleeve body arranges steel lobe, and lock sleeve outer wall The projection of the matched in clearance being provided with between multiple and steel lobe.
Further, the end of described lock sleeve offers otch.Being arranged such, beneficially lock sleeve deforms upon.Should Understanding, described otch can be arranged on any one or both ends of lock sleeve.
Further, the sleeve body inwall between described steel lobe is provided with groove.It is arranged such, while increasing grouting space Increase the gmatjpdumamics between sleeve body inwall and grouting material, increase overall tension or the anti-shearing force of sleeve body binding site Ability.Described groove is preferably arranged to annular, i.e. circumferentially disposed along sleeve body inner chamber.
Further, described sleeve body outer surface is provided with annular cutting.It is arranged such, adds sleeve body and concrete Contact area, increase the anchor force between grout sleeve and concrete.
Further, the two ends of described sleeve body are arranged to angle.It is arranged such, increases the diameter of end inner chamber, simultaneously Angle can also play the insertion of guide effect, beneficially reinforcing bar and achieve a butt joint.
For reaching above-mentioned purpose, this utility model also provides for a kind of prefabricated component, described prefabricated component be embedded with embedded bar and Grout sleeve described in above-mentioned any one, described embedded bar is connected with fixture.Being arranged such, prefabricated component is embedded with grouting Sleeve, is connected with the reinforcing bar that stretches out of prefabricated component to be assembled by grout sleeve, and then grouting is fixing, it is achieved the docking peace of prefabricated component Dress.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, and this practicality is new The schematic description and description of type is used for explaining this utility model, is not intended that improper restriction of the present utility model.
Fig. 1 is the front section view of the grout sleeve involved by a kind of embodiment of this utility model;
Fig. 2~5 is respectively the grout sleeve middle section figure involved by a kind of embodiment of this utility model;
Fig. 6 and Fig. 7 is the front section view of the grout sleeve involved by this utility model another embodiment;
Fig. 8 and Fig. 9 is the profile in the middle part of the grout sleeve involved by this utility model another embodiment;
Figure 10 and 11 is respectively the end cross-sectional figure of the grout sleeve involved by this utility model another embodiment;
Figure 12 is the front section view of the grout sleeve involved by this utility model another embodiment;
Figure 13 is the structural representation of the lock sleeve involved by a kind of embodiment of this utility model;
Figure 14 is the preform structure schematic diagram involved by a kind of embodiment of this utility model;
Figure 15 is the prefabricated component mated condition schematic diagram involved by a kind of embodiment of this utility model.
In figure:
1 sleeve body 2 is in the milk mouth 3 air vent 4 fixture
5 inner chamber 6 annular protrusion 8 steel lobes 9 cross slurry hole
11 steel lobe inwall 13 reinforcing bar 14 grouting materials 15 are protruding
16 groove 17 closing device 18 lock sleeve 19 jack holes
20 otch 21 step 22 prefabricated component 23 embedded bars
Detailed description of the invention
Being described in detail this utility model below in conjunction with the accompanying drawings, the description of this part is only exemplary and explanatory, Protection domain of the present utility model should there be is not any restriction effect.Additionally, those skilled in the art's retouching according to presents State, the feature in embodiment in presents and in different embodiment can be carried out respective combination.
This utility model embodiment is as follows, sees figures.1.and.2, and a kind of grout sleeve, including sleeve body 1, described sleeve Body 1 is provided with grouting mouth 2 and air vent 3, described sleeve body 1 both ends open, is provided with in the middle part of described sleeve body 1 inner chamber 5 Fixture 4, the inwall of described sleeve body 1 is provided with steel lobe 8, and the thickness of described steel lobe 8 is by sleeve body 1 two ends to middle part gradually Becoming big, the inwall of described steel lobe 8 is provided with and inside contracts step 21.
When grout sleeve is applied, in the manufacturing process of prefabricated component 22, grout sleeve is embedded in advance in prefabricated component 22, in advance Burying reinforcing bar 2313 to be connected through one end of sleeve body 1 with fixture 4, the other end of sleeve body 1 connects towards prefabricated component 22 is outer, When carrying out reinforcing bar 13 and docking, reinforcing bar 13 stretches to sleeve body 1 inner chamber 5, owing to steel lobe 8 is the most thickening to middle part by end, Inside in sleeve body 1 divides and tapers into, and after reinforcing bar 13 enters inner chamber 5, the termination of reinforcing bar 13 is in the pact of steel lobe inwall 11 Move to fixture 4 under bundle, until the end of reinforcing bar 13 is connected with fixture 4, so, in the docking operation of reinforcing bar 13, set Cylinder body 1 can realize accurate axially control to reinforcing bar 13, it is achieved radially location, it is ensured that between reinforcing bar 13 and grout sleeve Positioning precision, under preferable case, is i.e. provided with multiple steel lobe 8, the size of steel lobe 8 and consistency of thickness, and when being symmetrical arranged, can make Dock reinforcing bar 13 on the same line, reasonable mechanical;Reinforcing bar 13 can be made to be positioned at the central part of inner chamber 5, so after grouting simultaneously The thickness of the grouting material 14 of reinforcing bar 13 surrounding keeps consistent, improves Grouted density, increases grouting material 14 bonding reinforcing bar 13 Power.It is pointed out that to reach above-mentioned technique effect, the thickness of described steel lobe 8 is can not be too at fixture 4 Greatly, reinforcing bar 13 be ensure that can be connected with fixture 4.
It addition, inside contract the setting of ladder 21, the grouting space at this can be made to become big, beneficially grouting material 14 flows to middle part Dynamic, it is ensured that grouting material fills whole inner chamber 5, improve Grouted density.It addition, when after grouting material 14 molding, sleeve body 1 interior Being formed and inner chamber 5 and the grout blanket of steel lobe 8 mating shapes in chamber 5, grout blanket is inside contracting its size at step 21 from outside to inside Suddenly become big, i.e. form interior big the least outer solid-state structure at step 21 inside contracting, and embed mutually locking with steel lobe 8, add The ability of the anti-shearing force of sleeve joint portion and tensile strength, therefore the globality of binding site is more preferable.
The setting of this utility model steel lobe 8 increases sleeve body 1 integral rigidity, on the premise of meeting rigidity, Ke Yishi When reducing sleeve body 1 wall thickness, save material.In the case of external diameter is identical, reduces wall thickness simultaneously, is effectively increased the sky of grouting Between, adding grouting material 14 so that be in the milk more closely knit, reinforcing bar 13 is higher with the adhesive property of sleeve body 1 entirety.Additionally, The slurry poured into forms the lock solid structure matched with sky in sleeve and steel lobe 8 in sleeve body 1, and reinforcing bar is greatly improved The anchorage reliability of 13.Should be appreciated that such as Fig. 2~5, described steel lobe 8 can be and sleeve body 1 one-piece casting molding, it is possible to It is cutting processing molding, it is also possible to be work progress to be arranged in sleeve body 1 inner chamber 5, be flexibly connected with sleeve body 1. Certainly, steel lobe 8 arrange position with grouting mouth 2 and air vent 3 set by position not overlapping.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2~5, the inwall of described sleeve body 1 It is provided with the steel lobe 8 of more than two lobes.Lobe lobe number arrange main according to the size of sleeve depending on, steel lobe 8 can use two lobes, three lobes Deng lobe number so that the regulation space of sleeve body 1 is bigger.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, along sleeve body between described steel lobe 8 The distance of inner chamber 5 circumference of 1 is less than the diameter of reinforcing bar 13 to be connected.It is arranged such, it is to avoid reinforcing bar 13 when construction reinforced bar 13 docks Insert in the seam between steel lobe 8, it is achieved not docking, strengthen difficulty of construction.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 7 and Fig. 8, described steel lobe 8 was offered Starch hole 9 or lead stock tank.Cross to starch hole 9 or lead arranging of stock tank and on the one hand ensure there are enough flowings when grouting material 14 flows to middle part Space, enriches whole grout sleeve, and the grouting material 14 in the gap between steel lobe 8 can connect into entirety simultaneously, increases sleeve Adhesion between body 1 and grouting material 14, the globality of grouting material 14 is higher, and then is effectively increased grouting material 14 to reinforcing bar 13 Bond stress.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8, described cross slurry hole 9 or lead stock tank along set Cylinder circumferentially disposed.So, by crossing slurry hole 9 or leading stock tank by the gap connection between steel lobe 8.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6, described sleeve body 1 end inner chamber 5 Bottom be provided with annular protrusion 6.During grouting, in order to avoid grouting material 14 is first to open outer end overflow, in sleeve body 1 The bottom of end inner chamber 5 arranges annular protrusion 6, so grouting material 14 is played certain barrier effect so that grouting material 14 energy Enough first smoothly to sleeve body 1 internal flow, Grouted density can be improved.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 9, described steel lobe 8 is in the shape of a spiral.So Arrange, it is possible to increase the gmatjpdumamics between steel lobe 8 and grouting material 14, guide grouting material 14 to sleeve body 1 the most to a certain extent Interior flowing, is effectively improved Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 10 and 11, described steel lobe 8 is provided with recessed Groove 16 or protruding 15.The groove 16 or protruding 15 of certain depth is set on steel lobe 8, can increase between steel lobe 8 and grouting material 14 Contact area, to increase the gmatjpdumamics between itself and grouting material 14 so that between reinforcing bar 13 and sleeve body 1, power transmission is more equal Even.Should be appreciated that described groove 16 or protruding 15 can be arranged on sidewall and/or the inwall of steel lobe 8, described groove 16 or convex Playing 15 can be horizontal, vertical or annular setting.If offering groove, middle part or the sidewall of steel lobe 8 sidewall can be provided in Near one end of sleeve body 1 wall, especially groove is opened in steel lobe 8 sidewall near one end of sleeve body 1 wall, it is possible to increase The grouting space of grouting material 14, and increase the contact area of steel lobe 8, sleeve lining and grouting material 14 simultaneously.
On the basis of above-described embodiment, in another embodiment of the present invention, described steel lobe inwall 11 by end inwardly in ripple Stricture of vagina shape extends.On the one hand, taper into fixture owing to the inside of sleeve body 1 divides, be unfavorable for that grouting material 14 is to middle part Flowing, steel lobe 8 use undulatory inwall to ensure grouting material 14 has enough flowing spaces and the work of water conservancy diversion grouting material 14 With, Grouted density can be effectively improved, on the other hand, the concavity and convexity of steel lobe inwall 11 can be effectively increased, and then increase grouting material Gmatjpdumamics between 14 and steel lobe 8, improves the anchoring strength of reinforcing bar 13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described fixture 4 is threaded mouth Or fixing bolt.So, it is ensured that the connection of sleeve both sides reinforcing bar 13 and fixing.
On the basis of above-described embodiment, in another embodiment of the present invention, described sleeve body 1 outer surface is matsurface. When grout sleeve is as built-in fitting, sleeve body 1 outer surface uses rough surface, adds between grout sleeve and concrete Anchor force.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 12, the end of described sleeve body 1 sets Closing device 17, described closing device 17 is had to be provided with jack hole 19.Be arranged such, it is to avoid grouting material 14 before condensing hardening from Sleeve body 1 end is overflowed.During use, first by reinforcing bar 13 through the jack hole 19 on closing device 17, complete the right of reinforcing bar 13 Seal after connecing, then carry out grouting operation.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device 17 is elastic seal ring.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device 17 uses with sleeve body 1 Screw thread or shackle member connect.So, closing device 17 is formed with sleeve body 1 and is reliably connected, and can avoid in filling process, by The phenomenon backing down closing device 17 in impulsive force and the gravity of itself of grouting material 14 occurs.
On the basis of above-described embodiment, in another embodiment of the present invention, the two side of described closing device 17 is provided with Anchoring projection.Being arranged such, closing device 17 can form certain anchor force with the grouting material 14 of its both sides and in-situ layer, indirectly Strengthen the sleeve body 1 connection with the two.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 12 and 13, described closing device 17 is lock Tight set 18, described lock sleeve 18 and inner chamber 5 interference fit of described sleeve body 1 end, described lock sleeve 18 is mild steel or bullet Spring steel is standby.It is arranged such, after completing the docking of reinforcing bar 13, during sealing, lock sleeve 18 is pushed away inward, due to sleeve body 1 Inside divides and is tapered into middle part by end, causes lock sleeve 18 that elastic deformation occurs, and then being pinned by reinforcing bar 13 tightly, Reinforcing bar 13 can be made not swing in filling process.During it should be noted that lock sleeve 18 uses loop configuration, sleeve is originally Inner chamber 5 end of body 1 is not provided with steel lobe 8, and certainly, when inner chamber 5 end of sleeve body 1 arranges steel lobe 8, lock sleeve 18 outer wall sets There is the projection of matched in clearance between multiple and steel lobe 8.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 13, the end of described lock sleeve 18 is offered There is otch 20.Being arranged such, beneficially lock sleeve 18 deforms upon.Should be appreciated that described otch 20 can be arranged on lock sleeve Any one or both ends of 18.
Sleeve body 1 inwall on the basis of above-described embodiment, in another embodiment of the present invention, between described steel lobe 8 It is provided with groove.It is arranged such, while increasing grouting space, increases the gmatjpdumamics between sleeve body 1 inwall and grouting material 14, Increase overall tension or the ability of anti-shearing force of sleeve body 1 binding site.Described groove is preferably arranged to annular, i.e. along set Inner chamber 5 circumferentially disposed of cylinder body 1.
On the basis of above-described embodiment, in another embodiment of the present invention, described sleeve body 1 outer surface is provided with annular and carves Groove.Be arranged such, add the contact area of sleeve body 1 and prefabricated component 22 concrete, increase grout sleeve and concrete it Between anchor force.
On the basis of above-described embodiment, in another embodiment of the present invention, the two ends 4 of described sleeve body 1 are arranged to tiltedly Mouthful.Being arranged such, increase the diameter of end inner chamber 5, angle can also play the insertion of guide effect, beneficially reinforcing bar 13 in fact simultaneously Now dock.
This utility model also provides for a kind of prefabricated component 22, and embodiment is as follows, and with reference to Figure 14 and 15, described prefabricated component 22 is pre-buried The grout sleeve described in embedded bar 23 and above-mentioned any one, described embedded bar 23 is had to be connected with fixture 4.So set Putting, prefabricated component 22 is embedded with grout sleeve, is connected by the reinforcing bar that stretches out of grout sleeve with prefabricated component 22 to be assembled, is then in the milk Fixing, it is achieved the abutting joint of prefabricated component 22.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims (10)

1. a grout sleeve, including sleeve body, described sleeve body is provided with grouting mouth and air vent, it is characterised in that Described sleeve body both ends open, is provided with fixture in the middle part of described sleeve body inner chamber, the inwall of described sleeve body is provided with steel Lobe, the thickness of described steel lobe is become larger to middle part by sleeve body two ends, and the inwall of described steel lobe is provided with and inside contracts step.
Grout sleeve the most according to claim 1, it is characterised in that the inwall of described sleeve body is provided with more than two lobes Steel lobe.
Grout sleeve the most according to claim 2, it is characterised in that along the inner chamber circumference of sleeve body between described steel lobe Distance less than the diameter of reinforcing bar to be connected.
Grout sleeve the most according to claim 3, it is characterised in that offered slurry hole on described steel lobe or led stock tank.
Grout sleeve the most according to claim 4, it is characterised in that described cross slurry hole or lead stock tank and set along the circumference of sleeve Put.
6. according to the grout sleeve described in Claims 1 to 5 any one, it is characterised in that described steel lobe is by sleeve body Inward at both ends extends, and forms annular cavity in the middle part of described sleeve body, and described fixture is arranged in annular cavity.
7. according to the grout sleeve described in Claims 1 to 5 any one, it is characterised in that the inwall fixture of described steel lobe Both sides are provided with flex point, and the thickness of described steel lobe is become larger to flex point by sleeve body two ends, by flex point to fixture by Gradual change is little.
8. according to the grout sleeve described in Claims 1 to 5 any one, it is characterised in that described steel lobe is in the shape of a spiral.
9. according to the grout sleeve described in Claims 1 to 5 any one, it is characterised in that described steel lobe be provided with groove or Protruding;Or described steel lobe inwall is by the inside corrugated extension in end;Or described fixture is threaded mouth or fixing bolt; Or described sleeve body outer surface is matsurface;Or the end of described sleeve body is provided with closing device, described closing device sets There is jack hole;Or described closing device uses screw thread or shackle member to be connected with sleeve body;Or the two side of described closing device It is provided with anchoring projection;Or described closing device is lock sleeve, the inner chamber interference of described lock sleeve and described sleeve body end Coordinating, described lock sleeve is mild steel or prepared by spring steel;Or the end of described lock sleeve offers otch;Or between described steel lobe Sleeve body inwall be provided with groove.
10. a prefabricated component, it is characterised in that described prefabricated component is embedded with embedded bar and claim 1~9 any one institute The grout sleeve stated, described embedded bar is connected with fixture.
CN201620364531.3U 2016-04-26 2016-04-26 A kind of grout sleeve and prefabricated component Active CN205742754U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781027A (en) * 2016-04-26 2016-07-20 中民筑友科技投资有限公司 Grouting sleeve and prefabricated member

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN105781027A (en) * 2016-04-26 2016-07-20 中民筑友科技投资有限公司 Grouting sleeve and prefabricated member

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