CN205712764U - 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
CN205712764U
CN205712764U CN201620361698.4U CN201620361698U CN205712764U CN 205712764 U CN205712764 U CN 205712764U CN 201620361698 U CN201620361698 U CN 201620361698U CN 205712764 U CN205712764 U CN 205712764U
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China
Prior art keywords
sleeve
sleeve body
grout
inner chamber
reinforcing bar
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CN201620361698.4U
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Chinese (zh)
Inventor
俞大有
陈定球
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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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, being provided with fixture in the middle part of described sleeve body inner chamber, the inner chamber of described sleeve body is spindle-type by end to fixture.This utility model sleeve body internal diameter at middle part significantly increases, to ensure that grouting material has enough flowing spaces to middle part when flowing, it is ensured that grouting material fills whole inner chamber, improve Grouted density, the thickness of grouting material increases simultaneously, increases the grouting material bond stress to reinforcing bar, is formed and strengthens district.Additionally, when, after grouting material molding, the interior intracavity of sleeve body forms the grout blanket consistent with cavity shape, the i.e. grout blanket diameter at the middle part diameter more than sleeve body end, add ability and the tensile strength of the anti-shearing force of joint portion in sleeve, therefore the globality of binding site is more preferable.

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 squeeze more The mechanical joining methods such as gland cylinder, the construction of bar connecting is complex and it is necessary to before cast concrete Complete the connection of reinforcing bar, it is impossible to realize 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 Connect, in two connected reinforcing bars are inserted metal sleeve and in the space between sleeve and reinforcing bar, irrigate height Performance cement mortar, cement mortar hardening after, mutual build-in between three thus realize the connection of reinforcing bar.Specially Profit CN 103758291 B discloses a kind of shearing enhancement mode half grout sleeve, including sleeve body, described set Cylinder is tubular structure, and the opening part that sleeve body is is provided with elastic rubber sealing ring, sleeve body other end Opening part be provided with threaded connector, and be provided with grouting mouth on the sidewall of sleeve body end position And grout outlet;Sidewall along sleeve body is provided with bolt hole, is provided with shearing bolt in described bolt hole.On State sleeve and play, by increasing shearing bolt, the effect that shearing strengthens, but its structure is relative complex, make work Skill also can complicate, and cost of manufacture can increase accordingly simultaneously.
In sum, need exploitation badly a kind of with low cost, it is possible to increase Grouted density, increase grouting material pair The bond stress of reinforcing bar, the ability of the anti-shearing force of the joint portion being simultaneously effectively increased in sleeve and tensile strength Grout sleeve.
Utility model content
The purpose of this utility model is to provide a kind of with low cost, it is possible to increase Grouted density, increases grouting The material bond stress to reinforcing bar, ability and the tension of the anti-shearing force of the joint portion being simultaneously effectively increased in sleeve are strong The grout sleeve of degree, and apply the prefabricated component having this grout sleeve.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of grout sleeve, including sleeve body, described Sleeve body is provided with grouting mouth and air vent, described sleeve body both ends open, described sleeve body inner chamber Middle part is provided with fixture, and the inner chamber of described sleeve body is spindle-type by end to fixture.It is arranged such, I.e. the inner chamber of fixture both sides is all in spindle-type, and the inner chamber of sleeve body can be made to be in the both sides of fixture Small at both ends and big in the middle, the inner chamber of sleeve body is when near fixture, and internal diameter tapers into, so, When carrying out steel reinforcement abutting joints, reinforcing bar stretches to sleeve body inner chamber from the opening of sleeve body, and steel bar end exists Move to fixture under the constraint of sleeve body inwall, until the end of reinforcing bar is connected with fixture, so, In the docking operation of reinforcing bar, sleeve body can realize accurate axially control to reinforcing bar, it is achieved the most fixed Position, can make to dock reinforcing bar on the same line, reasonable mechanical, meanwhile, reinforcing bar can be made to be positioned in inner chamber Heart portion, after grouting, the thickness of the grouting material of reinforcing bar surrounding keeps consistent, improves Grouted density, increases and fills The slurry bond stress to reinforcing bar.It addition, the inner chamber of fixture both sides is broad in the middle ensures that grouting material internally flows There are enough flowing spaces time dynamic, it is ensured that grouting material fills whole inner chamber, improve Grouted density, fill simultaneously Slurry in the lumen between big part thickness increase, formed and strengthen district, increase grouting material and reinforcing bar is bonded Power;Again, when, after grouting material molding, the interior intracavity of sleeve body forms the grout blanket consistent with cavity shape, I.e. grout blanket is at the diameter of part broad in the middle more than the diameter of sleeve body end, adds in sleeve The ability of the anti-shearing force of joint portion and tensile strength, therefore the globality of binding site is more preferable.
Further, the bottom of described sleeve body end inner chamber is provided with annular protrusion.In sleeve body end The bottom in chamber arranges annular protrusion, grouting material so plays certain barrier effect so that grouting material can First smoothly to sleeve body internal flow, Grouted density can be improved.
Further, the inwall of described sleeve body is provided with steel lobe, and described steel lobe is along described sleeve body inner chamber Axially arranged.The setting of steel lobe increases sleeve body integral rigidity, on the premise of meeting rigidity, and can Suitably to reduce sleeve body wall thickness, save material.In the case of external diameter is identical, reduces wall thickness simultaneously, increases Having added grouting material so that be in the milk more closely knit, reinforcing bar is higher with the adhesive property of sleeve body entirety.Additionally, The slurry poured into forms the lock solid structure matched with sky in sleeve and steel lobe in sleeve body, significantly carries The high anchorage reliability of reinforcing bar.Should be appreciated that described steel lobe can be and sleeve body one-piece casting molding, May also be cutting processing molding, it is also possible to be that work progress is arranged on intracavity in sleeve body, with sleeve originally Body is flexibly connected.Certainly, steel lobe arrange position with grouting mouth and air vent set by position not overlapping.
Further, the inwall of described sleeve body sets the steel lobe of more than two lobes, it is preferable that described sleeve body Inwall on be arranged with 3 lobes or 4 lobe steel lobes.Lobe lobe number arrange main according to the size of sleeve depending on, Steel lobe can use the lobe number such as two lobes, three lobes so that the regulation space of sleeve body is bigger.
Further, it is less than the straight of reinforcing bar to be connected along the distance that the inner chamber of sleeve body is circumferential between described steel lobe Footpath.It is arranged such, it is to avoid during construction reinforced bar docking, reinforcing bar inserts in the seam between steel lobe, it is achieved not right Connect, strengthen difficulty of construction.
Further, the thickness of described steel lobe is become larger to middle part by sleeve body two ends, described sleeve body Inside divide and taper into.During grout sleeve application, in the manufacturing process of prefabricated component, by grout sleeve Being embedded in advance in prefabricated component, embedded bar is connected through one end of sleeve body with fixture, sleeve body another One end connects outside prefabricated component, and when carrying out steel reinforcement abutting joints, reinforcing bar stretches to sleeve body inner chamber, due to steel Lobe is the most thickening to middle part by end, and the inside in sleeve body divides and tapers into, 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 is connected with fixture, So, in the docking operation of reinforcing bar, sleeve body can realize accurate axially control to reinforcing bar, it is achieved Radially location, it is ensured that the positioning precision between reinforcing bar and grout sleeve, under preferable case, is i.e. provided with multiple steel Lobe, the size of steel lobe 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 to be positioned at the central part of inner chamber, the so grouting material of reinforcing bar surrounding after grouting simultaneously Thickness keep consistent, improve Grouted density, increase the grouting material bond stress to reinforcing bar.It may be noted that It is that, in order to reach above-mentioned technique effect, the thickness of described steel lobe is can not be too big, extremely at fixture Reinforcing bar be ensure that can be connected with fixture.
Further, described steel lobe was offered slurry hole or led stock tank.Cross slurry hole or lead arranging on the one hand of stock tank Ensure there are enough flowing spaces when grouting material flows to middle part, enrich whole grout sleeve, simultaneously can be by steel The grouting material in gap between lobe connects into entirety, increases the adhesion between sleeve body and grouting material, The globality of grouting material is higher, and then is effectively increased 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 Gap between steel lobe is connected by stock tank.
Further, described steel lobe is in the shape of a spiral.It is arranged such, it is possible to increase being engaged between steel lobe and grouting material Power, guides grouting material to flow in sleeve body the most to a certain extent, is effectively improved Grouted density.
Further, described steel lobe is provided with groove or projection.The groove of certain depth or convex is set on steel lobe Rise, the contact area between steel lobe and grouting material can be increased, to increase the gmatjpdumamics between itself and grouting material, Make power transmission between reinforcing bar and sleeve body more uniform.Should be appreciated that described groove or projection can be arranged On the sidewall and/or inwall of steel lobe, described groove or projection can be horizontal, vertical or annular is arranged.As Fruit offers groove, can be provided in the middle part of steel lobe sidewall or sidewall near one end of sleeve body wall, especially It is groove to be opened in steel lobe sidewall near one end of sleeve body wall, it is possible to increase the grouting space of grouting material, And increase the contact area of steel lobe, sleeve lining and grouting material simultaneously.
Further, the inwall of described sleeve body is by the inside corrugated extension in end.So, water conservancy diversion can be played The effect of grouting material, can be effectively improved Grouted density, on the other hand, can be effectively increased the volume of sleeve body The concavity and convexity of inwall, and then increase the gmatjpdumamics between grouting material and sleeve body, the anchoring improving reinforcing bar is strong Degree.
Further, described steel lobe inwall is by the inside corrugated extension in end.Steel lobe uses undulatory inwall Can ensure that grouting material has enough flowing spaces and the effect of water conservancy diversion grouting material, grouting can be effectively improved closely knit Degree, on the other hand, can be effectively increased the concavity and convexity of steel lobe inwall, and then increase between grouting material and steel lobe Gmatjpdumamics, improves the anchoring strength of reinforcing bar.
Further, described fixture is threaded mouth or fixing bolt.So, it is ensured that sleeve both sides The connection of reinforcing bar and fixing.
Further, described sleeve body outer surface is matsurface.When grout sleeve is as built-in fitting, sleeve Body outer surface 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. Be arranged such, it is to avoid grouting material before condensing hardening from sleeve body end spilling.During use, first by steel Muscle, through the jack hole on closing device, 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, sealing dress Put to be formed with sleeve body and be reliably connected, can avoid in filling process, due to the impulsive force of grouting material and its Gravity itself and back down the phenomenon of closing device and occur.
Further, the two side of described closing device is provided with anchoring projection.Being arranged such, closing device can Form certain anchor force with the grouting material of its both sides and in-situ layer, indirectly strengthen the sleeve body company with the two Connect.
Further, described closing device is lock sleeve, described lock sleeve and the inner chamber of described sleeve body end Interference fit, described lock sleeve is mild steel or prepared by spring steel.It is arranged such, after completing the docking of reinforcing bar, During sealing, lock sleeve is pushed away inward, is tapered into middle part by end owing to the inside of sleeve body divides, Cause lock sleeve generation elastic deformation, and then being pinned by reinforcing bar tightly, can make reinforcing bar in filling process not Swinging.
Further, the end of described lock sleeve offers otch.It is arranged such, beneficially lock sleeve generation shape Become.Should be appreciated that 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, increases grouting sky Increase the gmatjpdumamics between sleeve body inwall and grouting material while between, increase sleeve body binding site Overall tension or the ability of anti-shearing force.Described groove is preferably arranged to annular, i.e. along sleeve body inner chamber Circumferentially disposed.
Further, described sleeve body outer surface is provided with annular cutting.It is arranged such, adds sleeve body With the contact area of concrete, 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 straight of end inner chamber Footpath, angle can also play the insertion of guide effect, beneficially reinforcing bar and achieves a butt joint simultaneously.
For reaching above-mentioned purpose, this utility model also provides for a kind of prefabricated component, and described prefabricated component is embedded with pre-buried Grout sleeve described in reinforcing bar and above-mentioned any one, described embedded bar is connected with fixture.It is arranged such, Prefabricated component is embedded with grout sleeve, is connected, then with the reinforcing bar that stretches out of prefabricated component to be assembled by grout sleeve Grouting is fixing, it is achieved the abutting joint of prefabricated component.
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, this The schematic description and description of utility model is used for explaining this utility model, is not intended that this practicality new The improper restriction of type.
Fig. 1~3 is respectively the front section view of the grout sleeve involved by a kind of embodiment of this utility model;
Fig. 4~7 is respectively the middle section figure of the grout sleeve involved by a kind of embodiment of this utility model;
Fig. 8 is the front section view of the grout sleeve involved by this utility model another embodiment;
Fig. 9 and 10 is respectively the middle section figure of the grout sleeve involved by this utility model another embodiment;
Figure 11 and 12 is respectively the end cross-sectional figure of the grout sleeve involved by this utility model another embodiment;
Figure 13 and 14 is respectively the front section view of the grout sleeve involved by this utility model another embodiment;
Figure 15 is the structural representation of the lock sleeve involved by a kind of embodiment of this utility model;
Figure 16 is the preform structure schematic diagram involved by a kind of embodiment of this utility model;
Figure 17 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 prefabricated component 22 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 reconciliation The property released, should not have any restriction effect to protection domain of the present utility model.Additionally, people in the art Feature in embodiment in presents and in different embodiment, according to the description of presents, can be carried out by member Respective combination.
This utility model embodiment is as follows, with reference to Fig. 1, 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, described sleeve Be provided with fixture 4 in the middle part of body 1 inner chamber 5, the inner chamber 5 of described sleeve body 1 by end to fixture 4 In spindle-type.It is arranged such, the inner chamber 5 of sleeve body 1 can be made to be two in the both sides of fixture 4 Little, broad in the middle, the inner chamber 5 of sleeve body 1 is when near fixture 4, and internal diameter tapers into, so, When carrying out reinforcing bar 13 and docking, reinforcing bar 13 stretches to sleeve body 1 inner chamber 5 from the end of sleeve body 1, Reinforcing bar 13 termination is moved to fixture 4 under the constraint of sleeve body 1 inwall, until the end of reinforcing bar 13 Being connected with fixture 4, so, in the docking operation of reinforcing bar 13, sleeve body 1 can be to reinforcing bar 13 Realize accurate axially control, it is achieved radially location, can make to dock reinforcing bar 13 on the same line, rationally Stress, meanwhile, can make reinforcing bar 13 be positioned at the central part of inner chamber 5, the grouting of reinforcing bar 13 surrounding after grouting The thickness of material 14 keeps consistent, improves Grouted density, increases the grouting material 14 bond stress to reinforcing bar 13. It addition, inner chamber 5 is broad in the middle ensures there are enough flowing spaces when grouting material 14 internally flows, it is ensured that fill Slurry 14 fills whole inner chamber 5, improves Grouted density, and grouting material 14 is broad in the middle at inner chamber 5 simultaneously Part thickness increases, and is formed and strengthens district, increases the grouting material 14 bond stress to reinforcing bar 13;Again, when After grouting material 14 molding, form the grout blanket consistent with inner chamber 5 shape in the inner chamber 5 of sleeve body 1, i.e. Grout blanket, adds in sleeve more than the diameter of sleeve body 1 end at the diameter of part broad in the middle The ability of the anti-shearing force of joint portion and tensile strength, therefore the globality of binding site is more preferable.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, described sleeve body 1 The bottom of end inner chamber 5 is provided with annular protrusion 6.Owing to tapering in the middle part of the interior radial direction of sleeve body 1, During grouting, grouting material 14 is the most first to open outer end overflow, at the end of sleeve body 1 end inner chamber 5 Portion 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. 3, described sleeve body 1 Inwall be provided with steel lobe 8, described steel lobe 8 is axially arranged along described sleeve body 1 inner chamber 5.Steel lobe 8 Setting increase sleeve body 1 integral rigidity, on the premise of meeting rigidity, can suitably reduce sleeve Body 1 wall thickness, saves material.In the case of external diameter be identical, reduce wall thickness simultaneously, add grouting material 14, Making to be in the milk more closely knit, reinforcing bar 13 is higher with the adhesive property of sleeve body 1 entirety.Additionally, pour into Slurry forms the lock solid structure matched with sky in sleeve and steel lobe 8 in sleeve body 1, increases substantially The anchorage reliability of reinforcing bar 13.Should be appreciated that such as Fig. 4~7, described steel lobe 8 can be and sleeve body 1 one-piece casting molding, it is possible to be cutting processing molding, it is also possible to be to be arranged on sleeve body 1 in work progress In inner chamber 5, it is flexibly connected with sleeve body 1.Certainly, steel lobe 8 arrange position not with grouting mouth 2 and row Position set by QI KOU 3 is overlapping.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 4~7, described sleeve body 1 Inwall on set the steel lobe 8 of more than two lobes, it is preferable that be arranged with 3 lobes on the inwall of described sleeve body 1 Or 4 lobe steel lobes 8.Lobe lobe number arrange main according to the size of sleeve depending on, steel lobe 8 can use two lobes, The lobe numbers such as three lobes 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. 4, between described steel lobe 8 Distance along inner chamber 5 circumference of sleeve body 1 is less than the diameter of reinforcing bar 13 to be connected.It is arranged such, it is to avoid During when construction reinforced bar 13 docks, reinforcing bar 13 inserts the seam between steel lobe 8, it is achieved not docking, increasing executes Work difficulty.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3, the thickness of described steel lobe 8 Degree is become larger to middle part by sleeve body 1 two ends, and the inside of described sleeve body 1 divides and tapers into. During grout sleeve application, in the manufacturing process of prefabricated component 21, grout sleeve is embedded in advance in prefabricated component 21, Embedded bar 2213 is connected through one end of sleeve body 1 with fixture 4, the other end court of sleeve body 1 The outer connection of prefabricated component 21, 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, the inside in sleeve body 1 divides and tapers into, reinforcing bar After 13 enter inner chamber 5, the termination of reinforcing bar 13 is moved to fixture 4, directly under the constraint of steel lobe inwall 11 End to reinforcing bar 13 is connected with fixture 4, so, in the docking operation of reinforcing bar 13, and sleeve body 1 can realize accurate axially control to reinforcing bar 13, it is achieved radially location, it is ensured that reinforcing bar 13 overlaps with grouting Positioning precision between Tong, under preferable case, is i.e. provided with multiple steel lobe 8, the size of steel lobe 8 and thickness one Cause, and when being symmetrical arranged, can make to dock reinforcing bar 13 on the same line, reasonable mechanical;Steel can be made simultaneously Muscle 13 is positioned at the central part of inner chamber 5, and so after grouting, the thickness of the grouting material 14 of reinforcing bar 13 surrounding keeps Unanimously, improve Grouted density, increase the grouting material 14 bond stress to reinforcing bar 13.It is pointed out that In order to reach above-mentioned technique effect, the thickness of described steel lobe 8 is can not be too big, extremely at fixture 4 Reinforcing bar 13 be ensure that can be connected with fixture 4.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8 and 9, described steel lobe 8 On offered slurry hole 9 or led stock tank.Cross slurry hole 9 or lead stock tank arrange on the one hand ensure grouting material 14 in There are enough flowing spaces during portion's flowing, enrich whole grout sleeve, simultaneously can be by the gap between steel lobe 8 In grouting material 14 connect into entirety, increase the adhesion between sleeve body 1 and grouting material 14, grouting The globality of material 14 is higher, and then is effectively increased the grouting material 14 bond stress to reinforcing bar 13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 9, described cross slurry hole 9 or Lead circumferentially disposed along sleeve of stock tank.So, by crossing slurry hole 9 or leading stock tank by the gap between steel lobe 8 Connection.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 10, described steel lobe 8 is in spiral shell Rotation shape.It is arranged such, it is possible to increase the gmatjpdumamics between steel lobe 8 and grouting material 14, draws to a certain extent simultaneously Lead grouting material 14 to flow in sleeve body 1, be effectively improved Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 11 and 12, described steel lobe 8 It is provided with groove 16 or protruding 15.The groove 16 or protruding 15 of certain depth is set on steel lobe 8, can increase Add the contact area between steel lobe 8 and grouting material 14, to increase the gmatjpdumamics between itself and grouting material 14, Make power transmission between reinforcing bar 13 and sleeve body 1 more uniform.Should be appreciated that described groove 16 or projection On 15 sidewalls that can be arranged on steel lobe 8 and/or inwall, described groove 16 or protruding 15 can be laterally, Vertical or annular is arranged.If offering groove, middle part or the sidewall that can be provided in steel lobe 8 sidewall are close One end of sleeve body 1 wall, is especially opened in steel lobe 8 sidewall near the one of sleeve body 1 wall by groove End, it is possible to increase the grouting space of grouting material 14, and increase steel lobe 8, sleeve lining and grouting material 14 simultaneously Contact area.
On the basis of above-described embodiment, in another embodiment of the present invention, the inwall of described sleeve body is by end Inside corrugated extension.So, the effect of water conservancy diversion grouting material 14 can be played, grouting can be effectively improved closely knit Degree, on the other hand, can be effectively increased the concavity and convexity of the volume inwall of sleeve body 1, and then increase grouting material 14 And the gmatjpdumamics between sleeve body 1, improves the anchoring strength of reinforcing bar 13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 13, described steel lobe inwall 11 By the inside corrugated extension in end.Steel lobe 8 uses undulatory inwall to ensure, and that grouting material 14 has is enough The flowing space and the effect of water conservancy diversion grouting material 14, can be effectively improved Grouted density, on the other hand, can have Effect increases the concavity and convexity of steel lobe inwall 11, and then increases the gmatjpdumamics between grouting material 14 and steel lobe 8, carries The anchoring strength of high 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 Anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 14, described sleeve body 1 End be provided with closing device 17, described closing device 17 is provided with jack hole 19.It is arranged such, it is to avoid Grouting material 14 overflows from sleeve body 1 end before condensing hardening.During use, first by reinforcing bar 13 through envelope Jack hole 19 on mouth device 17, seals after completing the docking of reinforcing bar 13, then carries out grouting operation.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device 17 is elastic close Seal.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device 17 is with sleeve originally Body 1 uses screw thread or shackle member to connect.So, closing device 17 is formed with sleeve body 1 and is reliably connected, Can avoid in filling process, back down closing device due to impulsive force and the gravity of itself of grouting material 14 The phenomenon of 17 occurs.
On the basis of above-described embodiment, in another embodiment of the present invention, the two side of described closing device 17 It is provided with anchoring projection.Being arranged such, closing device 17 can be with the grouting material 14 of its both sides and in-situ layer shape Become certain anchor force, 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 14 and 15, described sealing Device 17 is lock sleeve 18, described lock sleeve 18 and inner chamber 5 interference fit of described sleeve body 1 end, Described lock sleeve 18 is prepared for mild steel or spring steel.It is arranged such, after completing the docking of reinforcing bar 13, sealing Time, lock sleeve 18 is pushed away inward, is tapered into middle part by end owing to the inside of sleeve body 1 divides, Cause lock sleeve 18 that elastic deformation occurs, and then reinforcing bar 13 is pinned tightly, reinforcing bar 13 can be made in grouting During do not swinging.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 14 and 15, described locking The end of set 18 offers otch 20.Being arranged such, beneficially lock sleeve 18 deforms upon.Should be appreciated that Described otch 20 can be arranged on any one or both ends of lock sleeve 18.
On the basis of above-described embodiment, in another embodiment of the present invention, the sleeve between described steel lobe 8 is originally Body 1 inwall is provided with groove.It is arranged such, while increasing grouting space, increases sleeve body 1 inwall and filling Gmatjpdumamics between slurry 14, increases 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 inner chamber 5 circumferentially disposed of sleeve body 1.
On the basis of above-described embodiment, in another embodiment of the present invention, described sleeve body 1 outer surface sets There is annular cutting.It is arranged such, adds the contact area of sleeve body 1 and prefabricated component 21 concrete, increase Add the anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, the two ends 4 of described sleeve body 1 It is arranged to angle.Being arranged such, increase the diameter of end inner chamber 5, angle can also play guide effect simultaneously, The insertion being conducive to reinforcing bar 13 achieves a butt joint.
This utility model also provides for a kind of prefabricated component 21, and embodiment is as follows, with reference to Figure 16 and 17, described pre- Product 21 is embedded with the grout sleeve described in embedded bar 22 and above-mentioned any one, described embedded bar 22 It is connected with fixture 4.Being arranged such, prefabricated component 21 is embedded with grout sleeve, by grout sleeve with treat group The reinforcing bar that stretches out of dress prefabricated component 21 is connected, and then grouting is fixing, it is achieved the abutting joint of prefabricated component 21.
The above is only preferred implementation of the present utility model, it is noted that for the art For those of ordinary skill, on the premise of without departing from this utility model principle, it is also possible to make some improvement And retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (20)

1. a grout sleeve, including sleeve body, described sleeve body is provided with grouting mouth and air vent, it is characterized in that, described sleeve body both ends open, is provided with fixture in the middle part of described sleeve body inner chamber, the inner chamber of described sleeve body is spindle-type by end to fixture.
Grout sleeve the most according to claim 1, it is characterised in that the bottom of described sleeve body end inner chamber is provided with annular protrusion.
Grout sleeve the most according to claim 1, it is characterised in that the inwall of described sleeve body is provided with steel lobe, described steel lobe is axially arranged along described sleeve body inner chamber.
Grout sleeve the most according to claim 3, it is characterised in that set the steel lobe of more than two lobes on the inwall of described sleeve body.
Grout sleeve the most according to claim 4, it is characterised in that be less than the diameter of reinforcing bar to be connected between described steel lobe along the distance that the inner chamber of sleeve body is circumferential.
Grout sleeve the most according to claim 5, it is characterised in that described steel lobe is the most thickening to middle part by sleeve body two ends, the inside of described sleeve divides and tapers into.
Grout sleeve the most according to claim 5, it is characterised in that offered slurry hole on described steel lobe or led stock tank.
Grout sleeve the most according to claim 7, it is characterised in that described cross slurry hole or lead circumferentially disposed along sleeve of stock tank.
9. according to the grout sleeve described in claim 1~8 any one, it is characterised in that described steel lobe is helical form.
Grout sleeve the most according to claim 9, it is characterised in that described steel lobe is provided with groove or projection.
11. grout sleeves according to claim 9, it is characterised in that described steel lobe inwall is by the inside corrugated extension in end.
12. grout sleeves according to claim 1, it is characterised in that described fixture is threaded mouth or fixing bolt.
13. grout sleeves according to claim 1, it is characterised in that described sleeve body outer surface is matsurface.
14. grout sleeves according to claim 1, it is characterised in that the end of described sleeve body is provided with closing device, described closing device is provided with jack hole.
15. grout sleeves according to claim 14, it is characterised in that described closing device uses screw thread or shackle member to be connected with sleeve body.
16. grout sleeves according to claim 14, it is characterised in that the two side of described closing device is provided with anchoring projection.
17. grout sleeves according to claim 14, it is characterised in that described closing device is lock sleeve, the inner chamber interference fit of described lock sleeve and described sleeve body end, described lock sleeve is mild steel or prepared by spring steel.
18. grout sleeves according to claim 17, it is characterised in that the end of described lock sleeve offers otch.
19. grout sleeves according to claim 9, it is characterised in that the sleeve body inwall between described steel lobe is provided with groove.
20. 1 kinds of prefabricated components, it is characterized in that, described prefabricated component is embedded with the grout sleeve described in embedded bar and claim 1~19 any one, and described embedded bar is connected with fixture, and one end of described grout sleeve and grouting mouth, air vent are towards connection outside prefabricated component.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781020A (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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105781020A (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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