CN205712752U - 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
CN205712752U
CN205712752U CN201620361564.2U CN201620361564U CN205712752U CN 205712752 U CN205712752 U CN 205712752U CN 201620361564 U CN201620361564 U CN 201620361564U CN 205712752 U CN205712752 U CN 205712752U
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China
Prior art keywords
sleeve body
sleeve
grout
inwall
reinforcing bar
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CN201620361564.2U
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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 internal diameter of described sleeve body is gradually reduced to middle part by two ends, and the inwall of described sleeve body is by the corrugated extension of inward at both ends.This utility model can realize reinforcing bar and the most axially controls and radially position, it is ensured that the positioning precision between reinforcing bar and grout sleeve;Use undulatory inwall, on the one hand, owing to tapering in the middle part of the interior radial direction of sleeve body, it is unfavorable for that grouting material flows to middle part, and 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 inwall can be effectively increased, and then increase the gmatjpdumamics between grouting material and sleeve, improve the anchoring strength of reinforcing bar.

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.As Patent CN 105133795 A discloses a kind of reducing type half grout sleeve, uses seamless steel pipe as main body Pipe, main body tube inwall is male and fomale(M&F), and main body tube upper end connects with the larger diameter end of conical tube, conical tube little Diameter end connects with cylindrical tube one end.Above-mentioned sleeve adds a conical pipe and plays the effect of reducing, makes Obtain this grout sleeve and be easily attached reinforcing bar, and make it deform so that it is be in close contact with being connected reinforcing bar through extruding. But in above-mentioned grout sleeve, the setting of conical pipe makes the internal diameter of this part diminish suddenly, owing to reinforcing bar has one Fixed rigidity, is difficult to so that reinforcing bar to be connected on the same line, even reinforcing bar to be extend into sleeve The inside, existing defects in stress.
In sum, a kind of axially control being capable of reinforcing bar of exploitation and radial direction location are needed badly, it is ensured that reinforcing bar And the positioning precision between grout sleeve, reasonable stress, can be effectively improved the grouting set of Grouted density simultaneously Cylinder.
Utility model content
The purpose of this utility model is to provide a kind of axially control being capable of reinforcing bar and radially positions, it is ensured that Positioning precision between reinforcing bar and grout sleeve, reasonable stress, the filling of Grouted density can be effectively improved simultaneously Slurry 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 air vent, described sleeve body both ends open, described sleeve body inner chamber Middle part is provided with fixture, and the internal diameter of described sleeve body is gradually reduced to middle part by two ends, described sleeve body Inwall by the inside corrugated extension in end.The internal diameter of sleeve body described herein by two ends to middle part by Gradual change is little to be referred on overall trend, and its internal diameter is tapered into middle part by two ends, and is not properly suited for set The internal diameter change of the local of cylinder body, reflection is the overall variation trend of internal diameter of sleeve body.Grouting set During cylinder application, in the manufacturing process of prefabricated component, being embedded in advance in prefabricated component by grout sleeve, embedded bar is worn The one end crossing sleeve body is connected with fixture, and the other end of sleeve body connects outside prefabricated component, is carrying out During steel reinforcement abutting joints, reinforcing bar stretches to sleeve body inner chamber, due to sleeve body internal diameter by end to middle part by Gradual change is little, and after reinforcing bar enters inner chamber, the termination of reinforcing bar is moved to fixture under the constraint of sleeve body inwall, Until the end of reinforcing bar is connected with fixture, so, in the docking operation of reinforcing bar, sleeve body can be right Reinforcing bar realizes accurate axially control, it is achieved radially location, it is ensured that the positioning accurate between reinforcing bar and grout sleeve Degree, under preferable case, when i.e. the central point of fixture is on the centrage of the inner chamber of sleeve body, can make Sleeve body two ends docking reinforcing bar on the same line, reasonable mechanical;Reinforcing bar can be made to be positioned at inner chamber simultaneously Central part, so after grouting, the thickness of the grouting material of reinforcing bar surrounding keeps consistent, improves Grouted density, Increase the grouting material bond stress to reinforcing bar.Should be appreciated that the minimum diameter of described sleeve body inner chamber should omit Diameter more than reinforcing bar.
Use undulatory inwall, on the one hand, owing to tapering in the middle part of the interior radial direction of sleeve body, unfavorable Flow to middle part in grouting material, and undulatory inwall can ensure that grouting material has enough flowing spaces and leads The effect of purling slurry, can be effectively improved Grouted density, on the other hand, can be effectively increased the concavo-convex of inwall Property, and then increase the gmatjpdumamics between grouting material and sleeve, improve the anchoring strength of reinforcing bar.
Further, the bottom of described sleeve body end inner chamber is provided with annular protrusion.Due in sleeve body Footpath is inwardly tapered into by end, and during grouting, grouting material is easily first to open outer end overflow, at sleeve The bottom of body end inner chamber arranges annular protrusion, and grouting material so plays certain barrier effect so that Grouting material can improve Grouted density the most smoothly to sleeve body internal flow.
Further, the inwall of described sleeve body offers annular groove at middle part.It is arranged such, can make The sleeve body internal diameter at middle part significantly increases, to ensure that grouting material has enough flowings empty when flowing to middle part Between, it is ensured that grouting material fills whole inner chamber, improves Grouted density, and the thickness of this part grouting material increases simultaneously Greatly, increase the grouting material bond stress to reinforcing bar, form one section and strengthen district.It addition, when after grouting material molding, The interior intracavity of sleeve body forms straight at annular groove of the grout blanket consistent with cavity shape, i.e. grout blanket Footpath more than the diameter of sleeve body end, adds ability and the tension of the anti-shearing force of joint portion in sleeve Intensity, therefore the globality of binding site is more preferable.
Further, at described annular groove, the internal diameter of inner chamber is gradually increased to middle part by two ends.It is arranged such, The sleeve body internal diameter at middle part can be made to be gradually increased the most inwards, be conducive to guiding grouting material to flow to middle part Dynamic, ensure enough flowing spaces simultaneously, improve Grouted density, the thickness of this part grouting material increases simultaneously Greatly, increase the grouting material bond stress to reinforcing bar, form one section and strengthen district.
Further, the inwall of described sleeve body is provided with steel lobe.It is whole that the setting of steel lobe increases sleeve body Body rigidity, on the premise of meeting rigidity, can suitably reduce sleeve body wall thickness, save material.Exist simultaneously Reduce wall thickness in the case of external diameter is identical, add grouting material so that be in the milk more closely knit, reinforcing bar and sleeve The adhesive property of body entirety is higher.Preferably steel lobe setting direction is consistent with inner chamber axial direction.Additionally, fill The slurry entered forms the lock solid structure matched with sky in sleeve and steel lobe in sleeve body, increases substantially The 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 steam 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.Steel lobe lobe number mainly size according to sleeve body is set 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, 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 steel lobe is helical form.Steel lobe uses spiral, it is possible to increase between itself and grouting material Gmatjpdumamics, guides grouting material flowing the most to a certain extent, is effectively improved Grouted density.
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 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 more uniform.Should be appreciated that described groove or projection can be arranged on steel On the sidewall of lobe and/or inwall, described groove or projection can be horizontal, vertical or annular is arranged.If opened If 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 Increase the contact area of steel lobe, sleeve lining and grouting material simultaneously.
Further,.So, it is ensured that the connection of sleeve both sides 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, owing to the internal diameter of sleeve body is tapered into middle part by end, cause Lock sleeve generation elastic deformation, so tightly by reinforcing bar pin, can make reinforcing bar in filling process not send out Raw swing.
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. 1~5 is respectively the front section view of the grout sleeve involved by a kind of embodiment of this utility model;
Fig. 6~9 is respectively section on the left of the fixture of the grout sleeve involved by a kind of embodiment of this utility model Figure;
Figure 10 is the front section view of the grout sleeve involved by this utility model another embodiment;
Figure 11 and 12 is respectively on the left of the fixture of the grout sleeve involved by this utility model another embodiment Profile;
Figure 13 and 14 is respectively on the right side of the fixture of the grout sleeve involved by this utility model another embodiment Profile
Figure 15 is the front section view of the grout sleeve involved by this utility model another embodiment;
Figure 16 is the structural representation of the lock sleeve involved by a kind of embodiment of this utility model;
Figure 17 is the preform structure schematic diagram involved by a kind of embodiment of this utility model;
Figure 18 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 7 annular groove 8 steel lobes
9 cross slurry hole 11 steel lobe inwall 13 reinforcing bar 14 grouting material
15 protruding 16 groove 17 closing device 18 lock sleeves
19 jack hole 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 Being provided with fixture 4 in the middle part of body 1 inner chamber 5, the internal diameter of described sleeve body 1 is gradually contracted to middle part by two ends Little, the inwall of described sleeve body 1 is by the inside corrugated extension in end.Sleeve body 1 described herein Internal diameter tapered into middle part by two ends and refer on overall trend, its internal diameter is gradually become to middle part by two ends Little, and be not properly suited for sleeve body 1 local internal diameter change, reflection is the interior of sleeve body 1 The overall variation trend in footpath.During grout sleeve application, in the manufacturing process of prefabricated component 21, by grout sleeve Being 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 of sleeve body 1 is towards the outer connection of prefabricated component 21, and when carrying out reinforcing bar 13 and docking, reinforcing bar 13 stretches into To sleeve body 1 inner chamber 5, owing to the internal diameter of sleeve body 1 is tapered into middle part by end, reinforcing bar 13 After entering inner chamber 5, the termination of reinforcing bar 13 is moved to fixture 4 under the constraint of sleeve body 1 inwall, directly 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, i.e. the central point of fixture 4 is at the inner chamber 5 of sleeve body 1 Centrage on time, the reinforcing bar 13 that sleeve body 1 two ends are docked can be made on the same line, reasonable mechanical; Reinforcing bar 13 can be made to be positioned at the central part of inner chamber 5, the so grouting material 14 of reinforcing bar 13 surrounding after grouting simultaneously Thickness keep consistent, improve Grouted density, increase the grouting material 14 bond stress to reinforcing bar 13.Should Understanding, the minimum diameter of described sleeve body 1 inner chamber 5 should be slightly larger than the diameter of reinforcing bar 13.
Use undulatory inwall, on the one hand, owing to tapering in the middle part of the interior radial direction of sleeve body 1, no It is beneficial to grouting material 14 flow to middle part, and 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 inwall, and then increase the gmatjpdumamics between grouting material 14 and sleeve, improve the anchoring of reinforcing bar 13 Intensity.
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 the internal diameter of sleeve body 1 is the most gradually become by end Little, during grouting, grouting material 14 is the most first to open outer end overflow, at sleeve body 1 end inner chamber 5 Bottom annular protrusion 6 is set, so grouting material 14 is played certain barrier effect so that grouting material 14 Grouted density can be improved the most 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, described sleeve body 1 Inwall offer annular groove 7 at middle part.It is arranged such, sleeve body 1 can be made at the internal diameter at middle part Significantly increase, to ensure that grouting material 14 has enough flowing spaces to middle part when flowing, it is ensured that grouting material 14 Filling whole inner chamber 5, improve Grouted density, the thickness of this part grouting material 14 increases simultaneously, increases and fills The slurry 14 bond stress to reinforcing bar 13, forms one section and strengthens district.It addition, when, after grouting material 14 molding, overlapping Forming the grout blanket consistent with inner chamber 5 shape in the inner chamber 5 of cylinder body 1, i.e. grout blanket is at annular groove 7 The diameter at place more than the diameter of sleeve body 1 end, adds the energy of the anti-shearing force of joint portion in sleeve Power 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. 4, described annular groove 7 The internal diameter of place's inner chamber 5 is gradually increased to middle part by two ends.It is arranged such, sleeve body 1 can be made at middle part Internal diameter be gradually increased the most inwards, be conducive to guide grouting material 14 to middle part flow, ensure enough simultaneously The flowing space, improves Grouted density, and the thickness of this part grouting material 14 increases simultaneously, increases grouting material The bond stress of 14 pairs of reinforcing bars 13, forms one section and strengthens district.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 5, described sleeve body 1 Inwall be provided with steel lobe 8.The setting of steel lobe 8 increases sleeve body 1 integral rigidity, meets rigidity Under premise, can suitably reduce sleeve body 1 wall thickness, save material.Simultaneously in the case of external diameter is identical Reducing wall thickness, add grouting material 14 so that be in the milk more closely knit, reinforcing bar 13 is overall with sleeve body 1 Adhesive property higher.Preferably steel lobe 8 setting direction is consistent with inner chamber 5 axial direction.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. 6~9, 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 pore is overlapping.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6~9, 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.Steel lobe 8 lobe number the main size according to sleeve body 1 is set depending on, steel lobe 8 can Use the lobe number such as two lobes, 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 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 Figure 10 and 11, 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 Figure 12, described steel lobe 8 is spiral shell Rotation shape.Steel lobe 8 uses spirally, it is possible to increase the gmatjpdumamics between itself and grouting material 14, the most to a certain degree Upper guiding grouting material 14 flows, and is effectively improved Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 11, 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 13 and 14, 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 more uniform.Should be appreciated that described groove 16 or projection 15 are permissible 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 sleeve One end of body 1 wall, is especially opened in steel lobe 8 sidewall near one end of sleeve body 1 wall by groove, The grouting space of grouting material 14 can be increased, and increase steel lobe 8, sleeve lining connect with grouting material 14 simultaneously Contacting surface is amassed.
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 15, 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 15 and 16, 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, owing to the internal diameter of sleeve body 1 is tapered into middle part by end, causes There is elastic deformation in lock sleeve 18, and then being pinned by reinforcing bar 13 tightly, and reinforcing bar 13 can be made at filling process In do not swinging.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 16, described lock sleeve 18 End offer otch 20.Being arranged such, beneficially lock sleeve 18 deforms upon.Should be appreciated that institute State otch 20 and 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 17 and 18, 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, being provided with fixture in the middle part of described sleeve body inner chamber, the internal diameter of described sleeve body is gradually reduced to middle part by two ends, and the inwall of described sleeve body is by the corrugated extension of inward at both ends.
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 annular groove at middle part.
Grout sleeve the most according to claim 3, it is characterised in that at described annular groove, the internal diameter of inner chamber is gradually increased to middle part by two ends.
5. according to the grout sleeve described in Claims 1 to 4 any one, it is characterised in that the inwall of described sleeve body is provided with steel lobe.
Grout sleeve the most according to claim 5, 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 6, 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 7, it is characterised in that offered slurry hole on described steel lobe or led stock tank.
Grout sleeve the most according to claim 8, 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 of opening.
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 opening 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 16, it is characterised in that described closing device is lock sleeve, the inner chamber interference fit of described lock sleeve and described sleeve body opening, 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 10, 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, and described embedded bar is connected with fixture.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756071A (en) * 2018-06-20 2018-11-06 肖成美 A kind of straight screw sleeve for building

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108756071A (en) * 2018-06-20 2018-11-06 肖成美 A kind of straight screw sleeve for building
CN108756071B (en) * 2018-06-20 2020-07-03 广州市番禺大石建筑工程有限公司 Straight thread sleeve for building

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C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Assignee: China Civil Architecture Friends Technology (Jiaozhou) Co., Ltd.

Assignor: CHINA MINGSHENG DRAWIN TECHNOLOGY INVESTMENT CO., LTD.

Contract record no.: 2018430000023

Denomination of utility model: Grouting sleeve and prefabricated member

Granted publication date: 20161123

License type: Common License

Record date: 20190102