CN210439568U - A grout sleeve for steel bar connection - Google Patents
A grout sleeve for steel bar connection Download PDFInfo
- Publication number
- CN210439568U CN210439568U CN201921219003.9U CN201921219003U CN210439568U CN 210439568 U CN210439568 U CN 210439568U CN 201921219003 U CN201921219003 U CN 201921219003U CN 210439568 U CN210439568 U CN 210439568U
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- grout
- sleeve
- section
- sleeve body
- quick
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Abstract
The utility model relates to the technical field of building construction, in particular to a grouting sleeve for steel bar connection, which comprises a sleeve body, wherein the sleeve body is of a tubular structure, and rubber sealing rings are arranged at openings at two ends of the sleeve body; the grout inlet is arranged below the side wall of the sleeve body, the grout outlet is arranged above the side wall, the grout inlet is provided with a quick connection joint used for being connected with a grout pipe, one end of the quick connection joint is communicated with the grout inlet, and the other end of the quick connection joint is communicated with the grout pipe. The utility model discloses a set up quick connect coupling with the grout pipe with advance grout mouthful intercommunication for leakproofness and resistance to pressure are better at grout in-process, ensure the condition that the grout can not appear leaking in the grout in-process, and quick connect coupling is convenient for install and dismantle, can improve grouting efficiency, improve production efficiency.
Description
Technical Field
The utility model relates to a construction technical field especially relates to a grout sleeve for steel bar connection.
Background
The steel bar sleeve grouting connection technology is a steel bar connection technology aiming at prefabricated components, wherein ribbed steel bars are inserted into a grouting sleeve with an inner cavity of a concave-convex surface, and a special high-strength cement-based grouting material is poured into a gap between the sleeve and the steel bars, and the steel bars are anchored in the sleeve after the grouting material is solidified.
The technology is characterized in that a grouting sleeve is embedded in a concrete component, grouting material is injected into the sleeve from the outside of a prefabricated component through a grouting pipe on an installation site, and the connection of the reinforcing steel bars of the prefabricated component is completed.
At present, in the grouting process, the sealing performance and the pressure resistance are poor when the grouting pipe is connected with the grouting joint on the side wall of the sleeve, in the grouting process, the grouting pipe is easy to separate from the grouting joint under the impact of concrete slurry, so that a slurry leakage accident is caused, in addition, the connection between the grouting pipe and the grouting joint is also troublesome, if a threaded connection mode is adopted, the concrete is easily attached to the threads in the grouting process, and after the long-term use, the threads are difficult to screw or even cannot screw. The existing grouting sleeve connecting structure has the advantages that in the construction process, constructors cannot master and know the grouting progress all the time, grouting is not practical in the grouting sleeve, and the connection quality and the construction quality of steel bars are affected.
In order to prevent grout leakage in the grouting process, the sealing plug is arranged at one end of the grouting sleeve inserted into the reinforcing steel bar, the inner diameter of the sealing plug needs to be smaller than the outer diameter of the reinforcing steel bar in order to ensure the sealing performance, but when the reinforcing steel bar is inserted into the grouting sleeve, the sealing plug has large resistance and is difficult to enter, and even the sealing ring is pushed into the inner cavity of the grouting sleeve.
Based on the above consideration, the utility model designs a grout sleeve for steel bar connection.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a grout sleeve for steel bar connection for at grout in-process leakproofness and resistance to pressure better, ensure the condition of leaking the thick liquid can not appear in the grout in-process, and quick connect joint is convenient for install and dismantle, can improve grouting efficiency, improves production efficiency.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
the utility model discloses a grouting sleeve for steel bar connection, which comprises a sleeve body, wherein the sleeve body is of a tubular structure, and rubber sealing rings are arranged at openings at two ends of the sleeve body; the grout inlet is arranged below the side wall of the sleeve body, the grout outlet is arranged above the side wall, the grout inlet is provided with a quick connection joint used for being connected with a grout pipe, one end of the quick connection joint is communicated with the grout inlet, and the other end of the quick connection joint is communicated with the grout pipe.
The quick connect coupling is the tubular structure, quick connect coupling's one end with advance thick liquid mouth fixed connection, the other end forms and is used for the suit in joint portion in the grout pipe, the cross-section diameter of joint portion reduces to the middle part by quick connect coupling's tip gradually, the grout pipe with the outside cover of one end of joint portion joint is equipped with the lock nut with joint portion cooperation chucking.
The inner hole of the locking nut forms a taper, and the aperture of the locking nut is gradually increased from the end part of the quick connection joint to the middle.
Bolt holes are formed in the side wall of the sleeve body at equal intervals, and shear bolts are installed in the bolt holes.
The thickness of the side wall of the sleeve body is gradually increased from two ends to the middle.
And a second slurry outlet is formed in the middle of the side wall of the sleeve body.
The rubber sealing ring is of a tubular structure, the outer wall of the rubber sealing ring is provided with a mounting ring for mounting the rubber sealing ring on the inner wall of the sleeve body, the axis of the rubber sealing ring is provided with a through hole for the steel bar to pass through, the through hole is sequentially provided with a guide section, a transition section, a sealing section and a stable section from the outer end to the middle part, the radius of the section of the guide section is gradually reduced from the outer end to the middle part, the end with smaller inner diameter of the guide section is connected with one end of the transition section, the inner diameter of the transition section is equal to the outer diameter of the reinforcing steel bar, at least one sealing bulge is arranged on the inner wall of the sealing section at intervals, the inner diameter of the sealing bulge is smaller than the outer diameter of the reinforcing steel bar, grooves are arranged on two sides of the sealing bulge, one end of the sealing section is connected with the transition section, the other end of the sealing section is connected with the stable section, and the inner diameter of the stable section is equal to that of the guide section.
And a spherical bulge is arranged at the joint of the transition section and the sealing section.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a set up quick connect coupling with the grout pipe with advance grout mouthful intercommunication for leakproofness and resistance to pressure are better at grout in-process, ensure the condition that the grout can not appear leaking in the grout in-process, and quick connect coupling is convenient for install and dismantle, can improve grouting efficiency, improve production efficiency.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic view showing the structure of the quick connect coupling of embodiment 1;
FIG. 3 is a schematic structural view of example 2;
FIG. 4 is a schematic structural view of embodiment 3;
FIG. 5 is a schematic structural view of example 4;
fig. 6 is a half sectional view of a rubber seal ring according to example 5.
In the figure, 1 sleeve body, 2 rubber seal, 21 collar, 22 through-holes, 23 direction section, 24 changeover portion, 25 seal section, 26 stationary phase, 27 seal protrusion, 28 recess, 29 spherical protrusion, 3 grout inlets, 4 grout outlets, 5 grout pipes, 6 quick connect coupling, 61 joint portion, 62 locking bolt, 7 shear bolt, 8 second grout outlets, 9 reinforcing bars.
Detailed Description
The invention will be further described with reference to the following figures and examples:
see fig. 1-6.
Example 1: as shown in fig. 1 and fig. 2, the present embodiment discloses a grouting sleeve for connecting steel bars, which includes a sleeve body 1, wherein the sleeve body 1 is of a tubular structure, and rubber sealing rings 2 are respectively disposed at openings at two ends of the sleeve body 1; the lateral wall below of cover barrel 1 is equipped with into thick liquid mouth 3, and the lateral wall top is equipped with grout outlet 4, it is used for the quick connect coupling 6 of being connected with grout pipe 5 to be equipped with on the grout inlet 3, quick connect coupling 6 one end with advance thick liquid mouth 3 intercommunication, the other end and grout pipe 5 intercommunication, this embodiment is through setting up quick connect coupling 6 with grout pipe 5 and advance thick liquid mouth 3 intercommunication for leakproofness and pressure resistance are better at grout in-process, ensure that the condition of leaking the thick liquid can not appear at grout in-process, and quick connect coupling 6 is convenient for install and dismantle, can improve grouting efficiency, improve production efficiency, quick connect coupling 6 and the one end of advancing thick liquid mouth 3 and being connected in this embodiment, can be when producing grout sleeve, directly carry out fixed connection with both directly, also can separate it, connect through modes such as threaded connection.
Concrete, quick connect coupler 6 is the tubular structure, quick connect coupler 6 one end with advance grout mouth fixed connection, the other end form be used for the suit in joint portion 61 in grout pipe 5, the cross-sectional diameter of joint portion 61 is reduced to the middle part by quick connect coupler 6's tip gradually, grout pipe 5 with the outside cover of one end of joint portion 61 joint is equipped with the lock nut 62 with joint portion 61 cooperation chucking, cup joints with grout pipe 5 through being conical joint portion 61, then locks it through lock nut 62 to realize grout pipe 5's quick-operation clamp tight, simple structure, the operation is swift convenient, has improved the efficiency of grout greatly.
Further, lock nut 62's hole forms the tapering, lock nut 62's aperture is crescent to the centre by quick connect coupling 6's tip, and lock nut 62 is the tapering opposite with joint portion to make lock nut 62 can be better with joint portion 61 cooperation with grout pipe 5 lock.
Example 2: as shown in fig. 3, bolt holes are formed in the side wall of the sleeve body 1 at equal intervals, and shear bolts 7 are installed in the bolt holes, so that the shear performance of the sleeve body 1 is greatly improved, the cost is not increased much, the shear bolts 7 are used for replacing grooves or ribs, time-consuming and labor-consuming machining is reduced, the performance of the sleeve body 1 is equal to or even better than that of cast steel, cast iron sleeves or machined sleeves, the form of the sleeve body 1 is simplified, and preferably, the shear-resistant high-strength bolts are high-strength bolts with performance level of 8.8 or above, and the sufficient shear performance of the shear bolts is ensured.
Example 3: as shown in fig. 4, the thickness of the side wall of the sleeve body 1 gradually increases from the two ends to the middle, and the grouting sleeve of the embodiment that the axial rigidity is reduced on the premise that the circumferential rigidity of the sleeve body 1 is not affected basically can be used for connecting the prefabricated concrete members, so that the rigidity of the prefabricated members is prevented from being excessively increased at the sleeve body 1, the deformation of the members is prevented from being excessively concentrated at the concrete at the two ends of the sleeve body 1, and the concrete at the two ends of the sleeve body 1 is prevented from having large cracks.
Example 4: as shown in fig. 5, the middle portion of the sidewall of the sleeve body 1 is provided with a second grout outlet 8, and the design of the present embodiment through the double grout outlet structure is beneficial to constructors to know the grouting progress in time, so as to effectively avoid the infirm grouting in the sleeve body 1,
the construction quality is improved, the structure is simple, the construction is convenient, the requirement on constructors is low, and the construction efficiency is improved.
Example 5: as shown in fig. 6, the rubber seal ring 2 is substantially of a tubular structure, a mounting ring 21 for mounting the rubber seal ring 2 on the inner wall of the sleeve body 1 is arranged on the outer wall of the rubber seal ring 2, a through hole 22 for the steel bar 9 to pass through is arranged at the axis of the rubber seal ring 2, the through hole 22 sequentially comprises a guide section 23, a transition section 24, a sealing section 25 and a stable section 26 from the outer end to the middle part, the section radius of the guide section 23 is gradually reduced from the outer end to the middle part, the end with the smaller inner diameter of the guide section 23 is connected with one end of the transition section 24, the inner diameter of the transition section 24 is equal to the outer diameter of the steel bar 9, at least one sealing protrusion 27 is arranged on the inner wall of the sealing section 25 at intervals, the inner diameter of the sealing protrusion 27 is smaller than the outer diameter of the steel bar 9, grooves 28 are arranged on two sides of, the other end is connected with the stable section 26, the inner diameter of the stable section 26 is equal to the inner diameter of the guide section 23, the rubber sealing rings 2 are installed at two ends of the inner wall of the sleeve body 1 through the installation ring 21, then the reinforcing steel bar 9 is inserted through the guide section 23, then the reinforcing steel bar 9 passes through the transition section 25 with the same outer diameter, and then the reinforcing steel bar 9 passes through the sealing bulge 27 of the sealing section 25, because the inner diameter of the sealing bulge 27 is smaller than the outer diameter of the reinforcing steel bar 9, the sealing bulge 27 can apply pressure to the reinforcing steel bar 9, but because the grooves 28 are formed at two sides of the sealing bulge 27, the friction force can be reduced greatly, the reinforcing steel bar 9 cannot be pushed particularly difficultly, through the repeated action of the plurality of sealing bulges 27, the sealing bulge 27 can be sealed with the reinforcing steel bar 9, the pushing of the reinforcing steel bar cannot be influenced.
The joint of the transition section 24 and the sealing section 25 is provided with a spherical bulge 29, and the spherical bulge 29 can play a certain friction role on the reinforcing steel bar 9 due to the fact that the spherical bulge is protruded compared with the transition section 24, but the spherical resistance of the spherical bulge is not particularly large, the pushing-in of the reinforcing steel bar 9 cannot be influenced, and therefore the spherical bulge 27 can be matched to play a role in preventing grout from leaking outwards doubly, and the sealing effect is further guaranteed.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.
Claims (8)
1. The utility model provides a grout sleeve for steel bar connection which characterized in that: the sleeve comprises a sleeve body (1), wherein the sleeve body (1) is of a tubular structure, and rubber sealing rings (2) are arranged at openings at two ends of the sleeve body (1); the lateral wall below of cover barrel (1) is equipped with into thick liquid mouth (3), and the lateral wall top is equipped with grout outlet (4), be equipped with on advancing thick liquid mouth (3) and be used for quick connect coupling (6) be connected with grout pipe (5), the one end of quick connect coupling (6) with advance thick liquid mouth (3) intercommunication, the other end and grout pipe (5) intercommunication.
2. A grout sleeve for rebar junction according to claim 1, wherein: quick-operation joint (6) are the tubular structure, the one end of quick-operation joint (6) with advance thick liquid mouth (3) fixed connection, the other end forms and is used for the suit in joint portion (61) in grout pipe (5), the cross-section diameter of joint portion (61) is reduced to the middle part by the tip of quick-operation joint (6) gradually, grout pipe (5) with the outside cover of one end of joint portion (61) is equipped with lock nut (62) with joint portion (61) cooperation chucking.
3. A grout sleeve for rebar junction according to claim 2, wherein: the inner hole of the locking nut (62) forms a taper, and the hole diameter of the locking nut (62) is gradually increased from the end part of the quick connection joint (6) to the middle part.
4. A grout sleeve for rebar junction according to claim 3, wherein: bolt holes are formed in the side wall of the sleeve body (1) at equal intervals, and shear bolts (7) are installed in the bolt holes.
5. A grouting sleeve for rebar connections according to claim 4, characterised in that: the thickness of the side wall of the sleeve body (1) is gradually increased from two ends to the middle.
6. A grouting sleeve for rebar connections according to claim 5, characterised in that: and a second slurry outlet (8) is formed in the middle of the side wall of the sleeve body (1).
7. A grout sleeve for rebar junction according to claim 6, wherein: rubber seal (2) roughly is the tubular structure, be equipped with on the outer wall of rubber seal (2) and be used for installing it in collar (21) on the cover barrel (1) inner wall, the axle center of rubber seal (2) is equipped with through-hole (22) that are used for reinforcing bar (9) to pass, through-hole (22) are guide section (23), changeover portion (24), seal section (25) and stationary section (26) by the outer end to the middle part in proper order, the cross-sectional radius of guide section (23) reduces gradually by the outer end to the middle part, the smaller one end of guide section (23) internal diameter with the one end of changeover portion (24) links to each other, the internal diameter of changeover portion (24) with the external diameter of reinforcing bar (9) equals, the interval is provided with at least one sealed protruding (27) on the inner wall of seal section (25), the internal diameter of sealed protruding (27) is less than the external diameter of reinforcing bar (9), two sides of the sealing bulge (27) are provided with grooves (28), one end of the sealing section (25) is connected with the transition section (24), the other end of the sealing section is connected with the stable section (26), and the inner diameter of the stable section (26) is equal to that of the guide section (23).
8. A grout sleeve for rebar junction according to claim 7, wherein: and a spherical bulge (29) is arranged at the joint of the transition section (24) and the sealing section (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921219003.9U CN210439568U (en) | 2019-07-31 | 2019-07-31 | A grout sleeve for steel bar connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921219003.9U CN210439568U (en) | 2019-07-31 | 2019-07-31 | A grout sleeve for steel bar connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210439568U true CN210439568U (en) | 2020-05-01 |
Family
ID=70407169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921219003.9U Expired - Fee Related CN210439568U (en) | 2019-07-31 | 2019-07-31 | A grout sleeve for steel bar connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210439568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653196A (en) * | 2021-08-26 | 2021-11-16 | 浙江理工大学 | Assembled building grouting sleeve with sealing assembly and connecting method thereof |
-
2019
- 2019-07-31 CN CN201921219003.9U patent/CN210439568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653196A (en) * | 2021-08-26 | 2021-11-16 | 浙江理工大学 | Assembled building grouting sleeve with sealing assembly and connecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200501 Termination date: 20210731 |