CN105781024A - Grouting sleeve and prefabricated member - Google Patents

Grouting sleeve and prefabricated member Download PDF

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Publication number
CN105781024A
CN105781024A CN201610265880.4A CN201610265880A CN105781024A CN 105781024 A CN105781024 A CN 105781024A CN 201610265880 A CN201610265880 A CN 201610265880A CN 105781024 A CN105781024 A CN 105781024A
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CN
China
Prior art keywords
sleeve body
sleeve
locking part
steel lobe
steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610265880.4A
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Chinese (zh)
Inventor
陈定球
俞大有
刘斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mingsheng Drawin Technology Investment Co Ltd
Original Assignee
China Mingsheng Drawin Technology Investment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mingsheng Drawin Technology Investment Co Ltd filed Critical China Mingsheng Drawin Technology Investment Co Ltd
Priority to CN201610265880.4A priority Critical patent/CN105781024A/en
Publication of CN105781024A publication Critical patent/CN105781024A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162Connectors or means for connecting parts for reinforcements
    • E04C5/163Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165Coaxial connection by means of sleeves

Abstract

The invention belongs to the field of constructional engineering, and particularly discloses a grouting sleeve and a prefabricated member. The grouting sleeve comprises a sleeve body, wherein the sleeve body is provided with a grouting port and an exhaust port; two ends of the sleeve body are open, wherein one end of the sleeve body is an open end, and the other end of the sleeve body is a connecting end; an inner wall of the sleeve body is provided with steel clacks; the steel clacks gradually become thicker from the open end to the connecting end; a fastener is arranged in an inner cavity of the sleeve body; the shape and the size of the fastener are matched with those of an inner hollow part of the connecting end of the sleeve body; the fastener is provided with a through connecting hole. The grouting sleeve and the prefabricated member are low in cost; the fixed connection between the grouting sleeve and an embedded steel bar can be realized; meanwhile, the axial control and the radial positioning of the steel bar can be realized; the positioning accuracy between the steel bar and the grouting sleeve is guaranteed.

Description

A kind of grout sleeve and prefabricated component
Technical field
The invention belongs to building engineering field, particularly relate to a kind of grout sleeve and prefabricated component.
Background technology
In traditional cast-in-place concrete structure, adopt overlap joint to connect more the connection of reinforcing bar, be welded to connect or the mechanical joining methods such as compression sleeve, the construction of bar connecting is complex, and the connection of reinforcing bar must be completed before cast concrete, the connection of reinforcing bar between prefabricated component cannot be realized, thus cannot be carried out prefabricated construction.
In prior art, bar connecting between assembly concrete architectural prefab needs to use sleeve grouting to connect, two connected reinforcing bars inserted in metal sleeve and irrigate high-performance water cement mortar in the space between sleeve and reinforcing bar, after cement mortar hardening, between three, mutual build-in is thus realizing the connection of reinforcing bar.Mostly existing sleeve is that offer screwed hole is easy to connect reinforcing bar in one end of sleeve, as patent CN103758291B discloses a kind of shearing enhancement mode half grout sleeve, including sleeve body, described sleeve body is tubular structure, the opening part that sleeve body is one is provided with elastic rubber sealing ring, and the opening part of sleeve body other end is provided with threaded connector.Above-mentioned sleeve is threaded connection part and realizes the connection of embedded bar and sleeve, but threaded connection hole or threaded connector processed complex, and steel bar end to be connected need to offer corresponding screw thread, adds processing step, cost of manufacture can increase accordingly.
In sum, exploitation is needed badly a kind of with low cost, it is simple to the grout sleeve being connected between reinforcing bar with grout sleeve.
Summary of the invention
It is an object of the invention to provide a kind of with low cost, it is simple to the grout sleeve being connected between reinforcing bar with grout sleeve, 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, described sleeve body is provided with grouting mouth and air vent, described sleeve body both ends open, wherein, one end is opening, the other end is link, the inwall of described sleeve body is provided with steel lobe, described steel lobe is thickening gradually to link by opening, being provided with the inside of locking part, the shape of described locking part and size and described sleeve body link in the inner chamber of described sleeve body to divide and match, described locking part offers jack hole.During grout sleeve application, when the making of prefabricated component, grout sleeve is embedded in prefabricated component in advance, can first sleeve body be arranged on embedded bar, then locking part through embedded bar and is sleeved on embedded bar end by jack hole, then can by embedded bar end jumping-up, can not also jumping-up, the anchoring effect of jumping-up is better, then sleeve body is moved outward, the locking part being sleeved on embedded bar end is made to enter in sleeve body and finally fix the link in sleeve body, invar lobe is thickening gradually to link by opening, locking part is compressed by steel lobe, and then embedded bar end is secured firmly in sleeve.The opening of sleeve body connects outside prefabricated component, when prefabricated component installation process carries out steel reinforcement abutting joints, reinforcing bar stretches to sleeve body inner chamber from the opening of sleeve body, owing to steel lobe is thickening gradually to link by opening, after reinforcing bar enters inner chamber, steel bar end moves to link under the constraint of sleeve body inwall and steel lobe, until the end of reinforcing bar connects with locking part, so, in the docking operation of reinforcing bar, reinforcing bar can be realized accurate axially control by steel lobe, realize radially location, ensure the positioning precision between reinforcing bar and grout sleeve, under preferable case, namely multiple steel lobe it is provided with, the size of steel lobe and consistency of thickness, and when being symmetrical arranged, docking reinforcing bar can be made on the same line, reasonable mechanical;Reinforcing bar can being made to be 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 the grouting material bond stress to reinforcing bar simultaneously.Certainly, in this programme, particularly in the pre-buried process of sleeve, it is preferable that do sealing treatment at link, can prevent prefabricated component slurry in casting process from entering sleeve body inner chamber further.
The setting of steel lobe increases sleeve body integral rigidity, under the premise meeting rigidity, it is possible to suitably reduces sleeve body wall thickness, saves material.Reducing wall thickness simultaneously when external diameter is identical, add 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, the anchorage reliability of reinforcing bar is greatly improved.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 that work progress is arranged in sleeve body intracavity, be flexibly connected with sleeve body.Certainly, steel lobe arrange position with grouting mouth and steam vent set by position not overlapping.
Further, the end opens of described locking part has otch.So, when locking part is sleeved on reinforcing bar and enters in sleeve body, by opening in link motor process, locking part is pressurizeed by sleeve body gradually, the end opens of locking part defines weakenings after having otch so that it is can to center deformation the reinforcing bar that locks, and more big by pulling force, lock more firm.
Further, described locking part is prepared by mild steel or spring steel.So, when locking part is sleeved on reinforcing bar and enters in sleeve body, by opening in link motor process, locking part is pressurizeed by sleeve body gradually, and locking part is prepared by mild steel or spring steel so that it is can to center deformation the reinforcing bar that locks, and more big by pulling force, lock more firm.
Further, described locking part is provided with sealing ring.So, when locking part is provided with sealing ring, link is served sealing process, can prevent prefabricated component slurry in casting process from entering sleeve body inner chamber.
Further, described locking part is provided with annular groove, and described sealing ring is placed in described annular groove.So, locking part is provided with annular groove, and after described sealing ring is placed in described annular groove, when locking part moves in sleeve body, sealing ring is not easily shifted to come off, and can fully ensure that the sealing function to link.
Further, the bottom of described sleeve body opening inner chamber is provided with annular protrusion.Intracavity bottom at sleeve body opening arranges annular protrusion, and grouting material so plays certain barrier effect so that grouting material first smoothly to sleeve body internal flow, can improve Grouted density.
Further, the inwall of described sleeve body sets the steel lobe of more than two lobes, it is preferable that the inwall of described sleeve body is arranged with 3 lobes or 4 lobe steel lobes.Arranging of lobe lobe number is mainly determined according to the size of sleeve, and steel lobe can adopt the lobe number such as two lobes, three lobes so that the adjustment space of sleeve body is bigger.
Further, between described steel lobe along the distance of the inner chamber circumference of sleeve body less than the diameter of reinforcing bar to be connected.So arrange, it is to avoid during construction reinforced bar docking, reinforcing bar inserts in the seam between steel lobe, it is achieved not docking, strengthen 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 ensure there are enough flowing spaces when grouting material flows to link on the one hand, enrich whole grout sleeve, grouting material in gap between steel lobe can be connected into entirety simultaneously, increase 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 stock tank by the gap connection between steel lobe.
Further, described sleeve body outer surface is matsurface.When grout sleeve is as built-in fitting, sleeve body outer surface adopts rough surface, adds the anchor force between grout sleeve and concrete.
Further, described steel lobe is provided with groove or projection.Steel lobe arranges groove or the projection of certain depth, the contact area between steel lobe and grouting material can be increased, to increase the gmatjpdumamics between itself and grouting material so that between reinforcing bar and sleeve body, power transmission is 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, the middle part of steel lobe sidewall or sidewall can be provided near one end of sleeve body wall, especially groove is opened in steel lobe sidewall near one end of sleeve body wall, it is possible to increase the grouting space of grouting material, and increases the contact area of steel lobe, sleeve lining and grouting material simultaneously.
Further, described steel lobe inwall is by the inside corrugated extension of opening.So arranging, 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, the concavity and convexity of steel lobe inwall can be effectively increased, and then increase the gmatjpdumamics between grouting material and steel lobe, improve the anchoring strength of reinforcing bar.
Further, described steel lobe is in the shape of a spiral.So arrange, it is possible to increase the gmatjpdumamics between steel lobe and grouting material, guide grouting material to flow in sleeve body simultaneously to a certain extent, be effectively improved Grouted density.
Further, the opening of described sleeve body is provided with closing device, and described closing device is provided with jack hole.So arrange, it is to avoid grouting material before condensing hardening from sleeve body opening spilling.During use, first by reinforcing bar through the jack hole on closing device, seal after completing the docking of reinforcing bar, then carry out grouting operation.
Further, described closing device adopts screw thread or shackle member to be connected with sleeve body.So, closing device is formed with sleeve body and is reliably connected, and can avoid in filling process, and the phenomenon backing down closing device due to impulsive force and the gravity of itself of grouting material occurs.
Further, the two side of described closing device is provided with anchoring projection.So arranging, closing device can form certain anchor force with the grouting material of its both sides and in-situ layer, indirectly strengthens the sleeve body connection with the two.
Further, the sleeve body inwall between described steel lobe is provided with groove.So arrange, while increasing grouting space, increase the gmatjpdumamics between sleeve body inwall and grouting material, increase the overall tension of sleeve body binding site or the ability of anti-shearing force.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.So arrange, add sleeve body and concrete contact area, increase the anchor force between grout sleeve and concrete.
Further, the opening of described sleeve body is arranged to angle.So arranging, increase the diameter of opening inner chamber, angle can also play guide effect simultaneously, is conducive to the insertion of reinforcing bar to achieve a butt joint.
For reaching above-mentioned purpose, the present invention also provides for a kind of prefabricated component, and described prefabricated component is embedded with the grout sleeve described in embedded bar and above-mentioned any one, and described embedded bar is connected with the link of grout sleeve.So arranging, prefabricated component is embedded with grout 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 abutting joint of prefabricated component.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.
The front section view of the grout sleeve involved by Fig. 1 and Fig. 2 respectively one embodiment of the present invention;
The middle section figure of the grout sleeve after grouting involved by the respectively one embodiment of the present invention of Fig. 3~6;
The front section view of the grout sleeve involved by the respectively one embodiment of the present invention of Fig. 7~9;
The middle section figure of the grout sleeve after the grouting involved by one embodiment of the present invention of Figure 10~13;
Figure 14 is the structural representation of the locking part involved by one embodiment of the present invention;
Figure 15 is the preform structure schematic diagram involved by one embodiment of the present invention;
Figure 16 is the prefabricated component mated condition schematic diagram involved by one embodiment of the present invention.
In figure:
1 sleeve body 2 is in the milk mouth 3 air vent 4 opening
5 link 6 annular protrusion 8 steel lobes 9 cross slurry hole
10 inner chamber 11 steel lobe inwall 12 locking part 13 reinforcing bars
Protruding 16 groove 19 jack holes of 14 grouting materials 15
20 otch 21 prefabricated component 22 embedded bars
Detailed description of the invention
Describing the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, and protection scope of the present invention should not have any restriction effect.Additionally, the description that those skilled in the art are according to presents, it is possible to the feature in embodiment in presents and in different embodiment is carried out respective combination.
The embodiment of the present invention is as follows, with reference to Fig. 1, Fig. 2 and Figure 14, 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, wherein, one end is opening 4, the other end is link 5, the inwall of described sleeve body 1 is provided with steel lobe 8, described steel lobe 8 is thickening gradually to link 5 by opening 4, the inner chamber 10 of described sleeve body 1 is provided with locking part 12, the inside of the shape of described locking part 12 and size and described sleeve body 1 link 5 divides and matches, described locking part 12 offers jack hole 19.During grout sleeve application, when the making of prefabricated component 21, grout sleeve is embedded in advance in prefabricated component 21, can first sleeve body 1 be arranged on embedded bar 22, then locking part 12 through nursery reinforcing bar and is sleeved on embedded bar 22 end by jack hole 19, then can by embedded bar 22 end jumping-up, can not also jumping-up, the anchoring effect of jumping-up is better, then sleeve body 1 is moved outward, the locking part 12 being sleeved on embedded bar 22 end is made to enter in sleeve body 1 and finally fix the link 5 in sleeve body 1, invar lobe 8 is thickening gradually to link 5 by opening 4, locking part 12 is compressed by steel lobe 8, and then embedded bar 22 end is secured firmly in sleeve.nullThe opening 4 of sleeve body 1 connects towards prefabricated component 21 is outer,Prefabricated component 21 installation process carries out reinforcing bar 13 when docking,Reinforcing bar 13 stretches to sleeve body 1 inner chamber 10 from the opening 4 of sleeve body 1,Owing to steel lobe 8 is thickening gradually to link 5 by opening 4,After reinforcing bar 13 enters inner chamber 10,Reinforcing bar 13 termination is moved to link 5 under the constraint of sleeve body 1 inwall and steel lobe 8,Until the end of reinforcing bar 13 connects with locking part 12,So,In the docking operation of reinforcing bar 13,Reinforcing bar 13 can be realized accurate axially control by steel lobe 8,Realize radially location,Ensure the positioning precision between reinforcing bar 13 and grout sleeve,Under preferable case,Namely multiple steel lobe 8 it is provided with,The size of steel lobe 8 and consistency of thickness,And when being symmetrical arranged,Docking reinforcing bar 13 can be made on the same line,Reasonable mechanical;Reinforcing bar 13 can being made to be positioned at the central part of inner chamber 10, so after grouting, the thickness of the grouting material 14 of reinforcing bar 13 surrounding keeps consistent, improves Grouted density, increases the grouting material 14 bond stress to reinforcing bar 13 simultaneously.Certainly, in this programme, particularly in the pre-buried process of sleeve, it is preferable that do sealing treatment at link 5, can prevent prefabricated component 21 slurry in casting process from entering sleeve body 1 inner chamber 10 further.
The setting of steel lobe 8 increases sleeve body 1 integral rigidity, under the premise meeting rigidity, it is possible to suitably reduces sleeve body 1 wall thickness, saves material.Reducing wall thickness simultaneously when external diameter is identical, add 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, the anchorage reliability of reinforcing bar 13 is greatly improved.Should be appreciated that such as Fig. 3~6, described steel lobe 8 can be and sleeve body 1 one-piece casting molding, it is possible to is cutting processing molding, it is also possible to is be arranged in work progress in sleeve body 1 inner chamber 10, is flexibly connected with sleeve body 1.Certainly, steel lobe 8 arrange position with grouting mouth 2 and steam vent set by position not overlapping.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 14, the end opens of described locking part 12 has otch 20.Should be appreciated that described otch 20 can be arranged on any one or both ends of locking part 12.So, when locking part 12 is sleeved on reinforcing bar 13 and enters in sleeve body 1, by opening 3 in link 5 motor process, locking part 12 is pressurizeed by sleeve body 1 gradually, the end opens of locking part 12 defines weakenings after having otch 20 so that it is can to center deformation the reinforcing bar 13 that locks, and more big by pulling force, lock more firm.
On the basis of above-described embodiment, in another embodiment of the present invention, described locking part 12 is prepared by mild steel or spring steel.So, when locking part 12 is sleeved on reinforcing bar 13 and enters in sleeve body 1, by opening 3 in link 5 motor process, locking part 12 is pressurizeed by sleeve body 1 gradually, locking part 12 is prepared by mild steel or spring steel, make it to center deformation the reinforcing bar 13 that locks, and pulling force can be subject to more big, lock more firm.
On the basis of above-described embodiment, in another embodiment of the present invention, described locking part 12 is provided with sealing ring.So, when locking part 12 is provided with sealing ring, link 5 is served sealing process, can prevent prefabricated component 21 slurry in casting process from entering sleeve body 1 inner chamber 10.
On the basis of above-described embodiment, in another embodiment of the present invention, described locking part 12 is provided with annular groove, and described sealing ring is placed in described annular groove.So, locking part 12 is provided with annular groove, and after described sealing ring is placed in described annular groove, when locking part 12 moves in sleeve body 1, sealing ring is not easily shifted to come off, and can fully ensure that the sealing function to link 5.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 7, the bottom of described sleeve body 1 opening 4 inner chamber 10 is provided with annular protrusion 6.Owing to the interior radial direction link 5 of sleeve body 1 tapers into, in the process of grouting, grouting material 14 is easily first to open outer end overflow, bottom the inner chamber 10 of sleeve body 1 opening 4, annular protrusion 6 is set, so grouting material 14 is played certain barrier effect, make grouting material 14 first smoothly to sleeve body 1 internal flow, can improve Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3~6, the inwall of described sleeve body 1 sets the steel lobe 8 of more than two lobes, it is preferable that the inwall of described sleeve body 1 is arranged with 3 lobes or 4 lobe steel lobes 8.Arranging of lobe lobe number is mainly determined according to the size of sleeve, and steel lobe 8 can adopt the lobe number such as two lobes, three lobes so that the adjustment space of sleeve body 1 is bigger.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6, along the distance of inner chamber 10 circumference of sleeve body 1 diameter less than reinforcing bar 13 to be connected between described steel lobe 8.So arrange, it is to avoid when construction reinforced bar 13 docks, reinforcing bar 13 inserts 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. 9 and 10, described steel lobe 8 offered slurry hole 9 or led stock tank.Cross to starch hole 9 or lead arranging of stock tank and ensure there are enough flowing spaces when grouting material 14 flows to link 5 on the one hand, enrich whole grout sleeve, grouting material 14 in gap between steel lobe 8 can be connected into entirety simultaneously, increase the adhesion between sleeve body 1 and grouting material 14, the globality of grouting 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 Figure 10, 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 connection between steel lobe 8.
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 adopts rough surface, adds the anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 12 and 13, described steel lobe 8 is provided with groove 16 or protruding 15.Steel lobe 8 arranges the groove 16 or protruding 15 of certain depth, the contact area between steel lobe 8 and grouting material 14 can be increased, to increase the gmatjpdumamics between itself and grouting material 14 so that between reinforcing bar 13 and sleeve body 1, power transmission is more uniform.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 protruding 15 can be horizontal, vertical or annular is arranged.If offering groove 16, the middle part of steel lobe 8 sidewall or sidewall can be provided 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, the grouting space of grouting material 14 can be increased, 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, such as Fig. 8, described steel lobe inwall 11 is by the inside corrugated extension of opening 4.Undulatory inwall can ensure that grouting material 14 has enough flowing spaces and the effect of water conservancy diversion grouting material 14, 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 the gmatjpdumamics between grouting material 14 and steel lobe 8, improve the anchoring strength of reinforcing bar 13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 11, 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 flow in sleeve body 1 simultaneously to a certain extent, be effectively improved Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, the opening 4 of described sleeve body 1 is provided with closing device, and described closing device is provided with jack hole.So arrange, it is to avoid grouting material 14 overflows from sleeve body 1 opening 4 before condensing hardening.During use, first by reinforcing bar 13 through the jack hole on closing device, seal after completing the docking of reinforcing bar 13, then carry out grouting operation.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device adopts screw thread or shackle member to be connected with sleeve body 1.So, closing device is formed with sleeve body 1 and is reliably connected, and can avoid in filling process, and the phenomenon backing down closing device due to 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 is provided with anchoring projection.So arranging, closing device can form certain anchor force with the grouting material 14 of its both sides and in-situ layer, indirectly strengthens the sleeve body 1 connection with the two.
On the basis of above-described embodiment, in another embodiment of the present invention, sleeve body 1 inwall between described steel lobe 8 is provided with groove.So arrange, while increasing grouting space, increase the gmatjpdumamics between sleeve body 1 inwall and grouting material 14, increase the overall tension of sleeve body 1 binding site or the ability of anti-shearing force.Described groove is preferably arranged to annular, i.e. circumferentially disposed along the inner chamber 5 of sleeve 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 cutting.So arrange, add sleeve body 1 and the concrete contact area of prefabricated component 21, increase the anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, the opening 4 of described sleeve body 1 is arranged to angle.So arranging, increase the diameter of opening 4 place inner chamber 10, angle can also play guide effect simultaneously, is conducive to the insertion of reinforcing bar 13 to achieve a butt joint.
The present invention also provides for a kind of prefabricated component 21, and embodiment is as follows, and with reference to Figure 15 and 16, described prefabricated component 21 is embedded with the grout sleeve described in embedded bar 22 and above-mentioned any one, and described embedded bar 22 is connected with the link 5 of grout sleeve.So arranging, prefabricated component 21 is embedded with grout sleeve, is connected by the reinforcing bar that stretches out of grout sleeve with prefabricated component 21 to be assembled, and then grouting is fixing, it is achieved the abutting joint of prefabricated component 21.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (10)

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, wherein, one end is opening, the other end is link, the inwall of described sleeve body is provided with steel lobe, and described steel lobe is thickening gradually to link by opening, is provided with locking part in the inner chamber of described sleeve body, the inside of the shape of described locking part and size and described sleeve body link divides and matches, and described locking part offers jack hole.
2. grout sleeve according to claim 1, it is characterised in that the end opens of described locking part has otch.
3. grout sleeve according to claim 1, it is characterised in that described locking part is prepared by mild steel or spring steel.
4. the grout sleeve according to claims 1 to 3 any one, it is characterised in that described locking part is provided with sealing ring.
5. grout sleeve according to claim 4, it is characterised in that described locking part is provided with annular groove, and described sealing ring is placed in described annular groove.
6. grout sleeve according to claim 5, it is characterised in that the intracavity bottom of described sleeve body opening is provided with annular protrusion.
7. grout sleeve according to claim 1, it is characterised in that set the steel lobe of more than two lobes on the inwall of described sleeve body.
8. grout sleeve according to claim 7, it is characterised in that along the distance of the inner chamber circumference of sleeve body less than the diameter of reinforcing bar to be connected between described steel lobe.
9. grout sleeve according to claim 8, it is characterised in that or described steel lobe offered slurry hole or leads stock tank;Or described cross slurry hole or lead circumferentially disposed along sleeve of stock tank;Or described steel lobe is provided with groove or projection;Or described steel lobe inwall is by the inside corrugated extension of opening;Or the opening of described sleeve body is provided with closing device, described closing device is provided with jack hole;Or described closing device adopts screw thread or shackle member to be connected with sleeve body;Or the two side of described closing device is provided with anchoring projection;Or described steel lobe is in the shape of a spiral;Or described sleeve body outer surface is matsurface;Or described steel lobe inwall is by the inside corrugated extension of opening;Or the sleeve body inwall between described steel lobe is provided with groove.
10. a prefabricated component, it is characterised in that described prefabricated component is embedded with the grout sleeve described in embedded bar and claim 1~9 any one, and described embedded bar is connected with the link of grout sleeve.
CN201610265880.4A 2016-04-26 2016-04-26 Grouting sleeve and prefabricated member Pending CN105781024A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108412134A (en) * 2018-02-10 2018-08-17 西安建筑科技大学 A kind of mixed type grout sleeve and its precast shear wall

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CN205134754U (en) * 2015-11-02 2016-04-06 深圳市现代营造科技有限公司 A grout sleeve for construction steel bar connects usefulness
CN205712757U (en) * 2016-04-26 2016-11-23 中民筑友科技投资有限公司 A kind of grout sleeve and prefabricated component

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CN108412134B (en) * 2018-02-10 2024-04-05 西安建筑科技大学 Mixed grouting sleeve and prefabricated shear wall thereof

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Application publication date: 20160720