CN205712757U - A kind of grout sleeve and prefabricated component - Google Patents

Abstract

The 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 exhaust outlet, described sleeve body both ends open, wherein, one end is openend, the other end is for connecting end, the internal diameter of described sleeve body is become larger to connecting end by openend, the inwall of described sleeve body is provided with steel lobe, described steel lobe is gradually thickening to connecting end by openend, the inner chamber of described sleeve body is provided with locking part, the shapes and sizes of described locking part are connected the inside split-phase coupling of end with described sleeve body, described locking part offers jack hole.The utility model is with low cost, is capable of the fixing connection of grout sleeve and embedded bar, can realize axially control and the radial direction positioning of reinforcing bar, it is ensured that the positioning precision between reinforcing bar and grout sleeve simultaneously.

Description

A kind of grout sleeve and prefabricated component

Technical field

The 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 to be in the milk Connect, in two connected reinforcing bars are inserted metal sleeve and in the space between sleeve and reinforcing bar, irrigate height Performance cement mortar, after cement mortar hardening, mutual build-in between three thus the connection that realizes reinforcing bar.Existing Mostly some sleeves are that offer screwed hole is easy to connect reinforcing bar, such as patent CN 103758291B in one end of sleeve Disclosing a kind of shearing enhancement mode half grout sleeve, including sleeve body, described sleeve body is tubular structure, set The opening part that cylinder is one is provided with elastic rubber sealing ring, and the opening part of sleeve body other end is provided with screw thread Connector.Above-mentioned sleeve is threaded connection the connection that part realizes embedded bar and sleeve, but threaded Hole or threaded connector processed complex, and steel bar end to be connected need to offer corresponding screw thread, adds work Skill step, cost of manufacture can increase accordingly.

In sum, exploitation is needed badly a kind of with low cost, it is simple to the grouting being connected between reinforcing bar with grout sleeve Sleeve.

Utility model content

The purpose of this utility model is to provide a kind of with low cost, it is simple to be connected between reinforcing bar with grout sleeve Grout sleeve, 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 exhaust outlet, described sleeve body both ends open, and wherein, one end is opening End, the other end is for connecting end, and the internal diameter of described sleeve body is become larger to connecting end by openend, described The inwall of sleeve body is provided with steel lobe, and described steel lobe is gradually thickening to connecting end by openend, and described sleeve is originally Being provided with locking part in the inner chamber of body, the shapes and sizes of described locking part are connected the interior of end with described sleeve body Empty part matches, and described locking part offers jack hole.During grout sleeve application, in the making of prefabricated component When, it is embedded in grout sleeve in prefabricated component in advance, can first sleeve body is arranged on embedded bar, then will Locking part passes through embedded bar by jack hole and is sleeved on embedded bar end, then can be by embedded bar End jumping-up, it is also possible to not jumping-up, the anchoring effect of jumping-up is more preferable, then moves sleeve body outward, The locking part being sleeved on embedded bar end is made to enter in sleeve body and finally fix the connection in sleeve body End, invar lobe is gradually thickening to connecting end by openend, compresses locking part by steel lobe, and then by pre-buried steel Muscle end is secured firmly in sleeve.The openend of sleeve body, towards connection outside prefabricated component, is installed at prefabricated component During when carrying out steel reinforcement abutting joints, reinforcing bar stretches to sleeve body inner chamber from the openend of sleeve body, due to Steel lobe is gradually thickening to connecting end by openend, and after reinforcing bar enters inner chamber, steel bar end is at sleeve body inwall And move to connection end under the constraint of steel lobe, until the end of reinforcing bar connects with locking part, so, at reinforcing bar Docking operation in, steel lobe can realize accurate axially control to reinforcing bar, it is achieved radially positioning, it is ensured that steel Positioning precision between muscle 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, docking reinforcing bar can be made on the same line, reasonable mechanical；Simultaneously can Making reinforcing bar be positioned at the central part of inner chamber, so after grouting, the thickness of the grouting material of reinforcing bar surrounding keeps consistent, Improve Grouted density, increase the bond stress to reinforcing bar for the grouting material.In addition, because the internal diameter of sleeve body is by opening Mouth end becomes larger to connecting end, after grouting, defines interior big outer little solid-state structure in sleeve body, And locking is embedded mutually with steel lobe, increase the bond stress to reinforcing bar for the grouting material.Certainly, in this programme, especially It is during sleeve is pre-buried, Seal treatment need to be done connecting end, can prevent prefabricated component from pouring further In journey, slurry enters sleeve body inner chamber.

The setting of steel lobe increases sleeve body integral rigidity, on the premise of meeting rigidity, can suitably subtract Few sleeve body wall thickness, saves material.Reduce wall thickness simultaneously in the case that external diameter is identical, adds grouting Material so that be in the milk more closely knit, the reinforcing bar adhesive property overall with sleeve body is higher.Additionally, pour into Slurry forms the lock solid structure matching with sky in sleeve and steel lobe in sleeve body, and steel is greatly improved The anchorage reliability of muscle.It should be appreciated that described steel lobe can be and the shaping of sleeve body one-piece casting, it is possible to It is cutting processing shaping, it is also possible to be work progress to be arranged in sleeve body inner chamber, live with sleeve body It is dynamically connected.Certainly, steel lobe arrange position with grouting mouth and steam vent set by position not overlapping.

Further, the end of described locking part offers otch.So, when locking part is sleeved on reinforcing bar simultaneously Entering in sleeve body, by openend during connecting end motion, locking part is gradually pressurizeed by sleeve body, After the end of locking part offers otch, define weakenings so that it is can to center deformation the reinforcing bar that locks, And bigger 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 enter in sleeve body, by openend during connecting end motion, locking part is gradually added by sleeve body Pressure, locking part is prepared by mild steel or spring steel so that it is to center deformation the reinforcing bar that locks, and can be got over by pulling force Greatly, locking is more firm.

Further, described locking part is provided with sealing ring.So, when locking part is provided with sealing ring, to even Connect end and serve 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.As This, locking part is provided with annular groove, and after described sealing ring is placed in described annular groove, locking part is at sleeve During this internal motion, sealing ring is not easily shifted to come off, and can fully ensure that to the sealing function connecting end.

Further, the bottom of described sleeve body openend inner chamber is provided with annular protrusion.At sleeve body opening The intracavity bottom of end arranges annular protrusion, so plays certain barrier effect to grouting material so that grouting material Can improve Grouted density first smoothly to sleeve body internal flow.

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.Depending on the setting of lobe lobe number is mainly according to 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, between described steel lobe, the distance of the inner chamber circumference along sleeve body is less than the straight of reinforcing bar to be connected 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, described steel lobe was offered slurry hole or led stock tank.Cross slurry hole or lead the setting of stock tank on the one hand Ensure that grouting material has enough flowing spaces when connecting end flowing, enrich whole grout sleeve, simultaneously can be by The grouting material in gap between steel 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 bond stress to reinforcing bar for the grouting material.

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 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, 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 snap-in force between itself and grouting material, Make power transmission between reinforcing bar and sleeve body more uniform.It 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, described steel lobe inwall is by the inside corrugated extension in openend.It is arranged such, undulatory Inwall can ensure that grouting material plays the role of enough flowing spaces and water conservancy diversion grouting material, can effectively improve grouting Packing, on the other hand, can be effectively increased the concavity and convexity of steel lobe inwall, so increase grouting material and steel lobe it Between snap-in force, improve reinforcing bar anchoring strength.

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 simultaneously to a certain extent, effectively improves Grouted density.

Further, the openend 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 openend spilling.During use, first will Reinforcing bar passes through the jack hole on closing device, seals after the docking completing reinforcing bar, then carries out grouting behaviour Make.

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 the phenomenon of backing down closing device occurs.

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 sleeve body and the company of the two Connect.

Further, the sleeve body inwall between described steel lobe is provided with groove.It is arranged such, increase grouting sky Between while increase the snap-in force between sleeve body inwall and grouting material, 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, add sleeve body With the contact area of concrete, increase the anchor force between grout sleeve and concrete.

Further, the openend of described sleeve body is arranged to angle.It is arranged such, increase openend inner chamber Diameter, angle can also play guide effect simultaneously, and the beneficially insertion of reinforcing bar achieves a butt joint.

For reaching above-mentioned purpose, the utility model also provides 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 the connection end of grout sleeve. Being arranged such, prefabricated component is embedded with grout sleeve, stretches out reinforcing bar by grout sleeve and prefabricated component to be assembled Being connected, then grouting is fixing, it is achieved the abutting joint of prefabricated component.

Brief description

Constitute a part of accompanying drawing of the present utility model to be further appreciated by of the present utility model for providing, this The schematic description and description of utility model is used for explaining the utility model, is not intended that to this practicality new The improper restriction of type.

Fig. 1 and Fig. 2 is respectively the front section view of the grout sleeve involved by a kind of embodiment of the utility model；

The middle section of the grout sleeve after grouting respectively involved by a kind of embodiment of the utility model for Fig. 3～6 Figure；

Fig. 7～9 are respectively the front section view of the grout sleeve involved by a kind of embodiment of the utility model；

The middle section of the grout sleeve after grouting involved by a kind of embodiment of the utility model for Figure 10～13 Figure；

Figure 14 is the structural representation of the locking part involved by a kind of embodiment of the utility model；

Figure 15 is the preform structure schematic diagram involved by a kind of embodiment of the utility model；

Figure 16 is the prefabricated component mated condition schematic diagram involved by a kind of embodiment of the utility model.

In figure:

1 sleeve body 2 is in the milk mouth 3 exhaust outlet 4 openend

5 connection end 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

Being described in detail the 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.

The utility model embodiment is as follows, with reference to Fig. 1, Fig. 2 and Figure 14, and a kind of grout sleeve, including set Cylinder body 1, described sleeve body 1 is provided with grouting mouth 2 and exhaust outlet 3, and described sleeve body 1 two ends are opened Mouthful, wherein, one end is openend 4, and the other end is for connecting end 5, and the internal diameter of described sleeve body 1 is by opening End 4 to connect end 5 become larger, the inwall of described sleeve body 1 is provided with steel lobe 8, described steel lobe 8 by Openend 4 is gradually thickening to connecting end 5, is provided with locking part 12 in the inner chamber 10 of described sleeve body 1, The shapes and sizes of described locking part 12 are connected the inside split-phase coupling of end 5, institute with described sleeve body 1 State locking part 12 and offer jack hole 19.During grout sleeve application, when the making of prefabricated component 21, will fill Slurry sleeve is embedded in prefabricated component 21 in advance, can first be arranged on embedded bar 22 by sleeve body 1, then will Locking part 12 is passed through embedded bar 22 by jack hole 19 and is sleeved on embedded bar 22 end, then Can be by embedded bar 22 end jumping-up, it is also possible to not jumping-up, the anchoring effect of jumping-up is more preferable, then by sleeve Body 1 moves outward, makes the locking part 12 being sleeved on embedded bar 22 end enter in sleeve body 1 simultaneously The final connection end 5 fixing in sleeve body 1, invar lobe 8 is gradually thickening to connecting end 5 by openend 4, Compress locking part 12 by steel lobe 8, and then be secured firmly to embedded bar 22 end in sleeve.Sleeve The openend 4 of body 1, towards the outer connection of prefabricated component 21, carries out reinforcing bar 13 in prefabricated component 21 installation process During docking, reinforcing bar 13 stretches to sleeve body 1 inner chamber 10 from the openend 4 of sleeve body 1, due to steel Lobe 8 is gradually thickening to connecting end 5 by openend 4, and after reinforcing bar 13 enters inner chamber 10, reinforcing bar 13 termination exists Move to connection end 5 under the constraint of sleeve body 1 inwall and steel lobe 8, until the end of reinforcing bar 13 and locking Part 12 connects, and so, in the docking operation of reinforcing bar 13, reinforcing bar 13 can be realized accurately by steel lobe 8 Axially control, it is achieved radially positioning, it is ensured that the positioning precision between reinforcing bar 13 and grout sleeve, preferable case Under, it is i.e. provided with multiple steel lobe 8, the size of steel lobe 8 and consistency of thickness, and when being symmetrical arranged, it is right to make Connect 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 10 simultaneously, So after grouting, the thickness of the grouting material 14 of reinforcing bar 13 surrounding keeps consistent, improves Grouted density, increases Add the bond stress to reinforcing bar 13 for the grouting material 14.In addition, because of the internal diameter of sleeve body 1 by openend 4 to even Connect end 5 to become larger, after grouting, in sleeve body 1, define interior big outer little solid-state structure, and with Steel lobe 8 embeds mutually locking, increases the bond stress to reinforcing bar 13 for the grouting material 14.Certainly, in this programme, Particularly during sleeve is pre-buried, Seal treatment need to be done connecting end 5, prefabricated component 21 can be prevented further In casting process, slurry enters sleeve body 1 inner chamber 10.

The setting of 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.Reduce wall thickness simultaneously in the case that external diameter is identical, increases 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 pouring into forms the lock solid structure matching with sky in sleeve and steel lobe 8 in sleeve body 1, The anchorage reliability of reinforcing bar 13 is greatly improved.It should be appreciated that such as Fig. 3～6, described steel lobe 8 can be With the shaping of sleeve body 1 one-piece casting, it is possible to be cutting processing shaping, it is also possible to be that work progress is installed It in sleeve body 1 inner chamber 10, is flexibly connected with sleeve body 1.Certainly, steel lobe 8 arrange position not with Set by grouting mouth 2 and steam vent, position is overlapping.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 14, described locking part 12 End offer otch 20.It should be appreciated that described otch 20 can be arranged on any one of locking part 12 End or two ends.So, when locking part 12 is sleeved on reinforcing bar 13 and enters in sleeve body 1, by opening End 3 is to connecting in end 5 motion process, and locking part 12 is gradually pressurizeed by sleeve body 1, locking part 12 After end offers otch 20, define weakenings so that it is can to center deformation the reinforcing bar 13 that locks, and Bigger 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 by mild steel or bullet Spring steel is standby.So, when locking part 12 is sleeved on reinforcing bar 13 and enters in sleeve body 1, by opening End 3 is to connecting in end 5 motion process, and locking part 12 is gradually pressurizeed by sleeve body 1, locking part 12 by Prepared by mild steel or spring steel so that it is can be to center deformation the reinforcing bar 13 that locks and bigger by pulling force, and locking is got over Firmly.

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, serve sealing process to connecting end 5, can prevent pre- Product 21 slurry in casting process enters sleeve body 1 inner chamber 10.

On the basis of above-described embodiment, in another embodiment of the present invention, it is recessed that described locking part 12 is provided with annular Groove, described sealing ring is placed in described annular groove.So, locking part 12 is provided with annular groove, described close After seal ring is placed in described annular groove, when locking part 12 moves in sleeve body 1, sealing ring is difficult to move Move and come off, can fully ensure that to the sealing function connecting end 5.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 7, described sleeve body 1 The bottom of openend 4 inner chamber 10 is provided with annular protrusion 6.Due to end 5 radially connected in sleeve body 1 by Gradual change is little, and during grouting, grouting material 14 is easily first to open outer end overflow, in sleeve body 1 openend Annular protrusion 6 is set bottom the inner chamber 10 of 4, so certain barrier effect is played to grouting material 14 so that Grouting material 14 can improve Grouted density first smoothly to sleeve body 1 internal flow.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 3～6, 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. 6, between described steel lobe 8 Distance along inner chamber 10 circumference of sleeve body 1 is less than the diameter of reinforcing bar 13 to be connected.It is arranged such, keep away Exempt from reinforcing bar 13 when construction reinforced bar 13 docks and 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. 9 and 10, described steel lobe 8 On offered slurry hole 9 or led stock tank.Cross slurry hole 9 or lead the setting on the one hand guarantee grouting material 14 of stock tank to even Have enough flowing spaces when connecing end 5 flowing, enrich whole grout sleeve, simultaneously can be by between steel lobe 8 Grouting material 14 in gap connects into entirety, increases the adhesion between sleeve body 1 and grouting material 14, The globality of grouting material 14 is higher, and then is effectively increased the bond stress to reinforcing bar 13 for the grouting material 14.

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 between steel lobe 8 Connection.

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 12 and 13, 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 snap-in force between itself and grouting material 14, Make power transmission between reinforcing bar 13 and sleeve body 1 more uniform.It 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 16, the middle part of steel lobe 8 sidewall can be provided in or sidewall leans on Groove is especially opened in steel lobe 8 sidewall near sleeve body 1 wall by one end of nearly sleeve body 1 wall One end, it is possible to increase the grouting space of grouting material 14, and increase steel lobe the 8th, sleeve lining and grouting material 14 simultaneously Contact area.

On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8, described steel lobe inwall 11 By the inside corrugated extension in openend 4.Undulatory inwall can ensure that grouting material 14 has enough flowings empty Between and the effect of water conservancy diversion grouting material 14, Grouted density can be effectively improved, on the other hand, can be effectively increased The concavity and convexity of steel lobe inwall 11, and then increase the snap-in force between grouting material 14 and steel lobe 8, improve reinforcing bar The anchoring strength of 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 spiral shell Rotation shape.It is arranged such, it is possible to increase the snap-in force between steel lobe 8 and grouting material 14, draw to a certain extent simultaneously Lead grouting material 14 to flow in sleeve body 1, effectively improve Grouted density.

On the basis of above-described embodiment, in another embodiment of the present invention, the openend of described sleeve body 1 4 are provided with closing device, and described closing device is provided with jack hole.It is arranged such, it is to avoid grouting material 14 is solidifying Overflow from sleeve body 1 openend 4 before knot hardening.During use, first pass through reinforcing bar 13 on closing device Jack hole, seals after the docking completing 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 and sleeve body 1 employing screw thread or shackle member connect.So, closing device forms with sleeve body 1 and is reliably connected, and can keep away Exempt from filling process, back down showing of closing device due to impulsive force and the gravity of itself of grouting material 14 As occurring.

On the basis of above-described embodiment, in another embodiment of the present invention, the two side of described closing device sets It is equipped with anchoring projection.Being arranged such, closing device can be formed necessarily with the grouting material 14 of its both sides and in-situ layer Anchor force, indirectly strengthen sleeve body 1 and the connection of the two.

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, increase sleeve body 1 inwall and filling Snap-in force between slurry 14, increases 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. inner chamber 5 circumferentially disposed along 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 openend of described sleeve body 1 4 are arranged to angle.Being arranged such, increasing the diameter of inner chamber 10 at openend 4, angle can also play simultaneously Guide effect, the beneficially insertion of reinforcing bar 13 achieve a butt joint.

The utility model also provides a kind of prefabricated component 21, and embodiment is as follows, with reference to Figure 15 and 16, 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 the connection end 5 of grout sleeve.Being arranged such, prefabricated component 21 is embedded with grout sleeve, by grouting Sleeve is connected with the reinforcing bar that stretches out of prefabricated component 21 to be assembled, and then grouting is fixing, it is achieved prefabricated component 21 right Connect installation.

The above is only preferred embodiment of the present utility model, it is noted that for the art For those of ordinary skill, on the premise of without departing from the utility model principle, some improvement can also be made 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 exhaust outlet, it is characterized in that, described sleeve body both ends open, wherein, one end is openend, the other end is for connecting end, the internal diameter of described sleeve body is become larger to connecting end by openend, the inwall of described sleeve body is provided with steel lobe, described steel lobe is gradually thickening to connecting end by openend, the inner chamber of described sleeve body is provided with locking part, the shapes and sizes of described locking part are connected the inside split-phase coupling of end with described sleeve body, described locking part offers jack hole.

2. grout sleeve according to claim 1, it is characterised in that the end of described locking part offers 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, 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 openend 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 between described steel lobe, the distance along the inner chamber circumference of sleeve body is less than the diameter of reinforcing bar to be connected.

9. grout sleeve according to claim 8, it is characterised in that or offered slurry hole on described steel lobe or led stock tank.

10. grout sleeve according to claim 9, it is characterised in that described cross slurry hole or lead circumferentially disposed along sleeve of stock tank.

11. grout sleeves according to claim 7, it is characterised in that described steel lobe is provided with groove or projection.

12. grout sleeves according to claim 7, it is characterised in that described steel lobe inwall is by the inside corrugated extension in openend.

13. grout sleeves according to claim 1, it is characterised in that the openend of described sleeve body is provided with closing device, described closing device is provided with jack hole.

14. grout sleeves according to claim 13, it is characterised in that described closing device uses screw thread or shackle member to be connected with sleeve body.

15. grout sleeves according to claim 13, it is characterised in that the two side of described closing device is provided with anchoring projection.

16. grout sleeves according to claim 7, it is characterised in that described steel lobe is in the shape of a spiral.

17. grout sleeves according to claim 7, it is characterised in that described sleeve body outer surface is matsurface.

18. grout sleeves according to claim 7, it is characterised in that described steel lobe inwall is by the inside corrugated extension in openend.

19. grout sleeves according to claim 7, 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 characterised in that described prefabricated component is embedded with the grout sleeve described in embedded bar and claim 1～19 any one, described embedded bar is connected with the connection end of grout sleeve.