CN210597889U - Semi-grouting sleeve for steel bar connection - Google Patents
Semi-grouting sleeve for steel bar connection Download PDFInfo
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- CN210597889U CN210597889U CN201920815668.XU CN201920815668U CN210597889U CN 210597889 U CN210597889 U CN 210597889U CN 201920815668 U CN201920815668 U CN 201920815668U CN 210597889 U CN210597889 U CN 210597889U
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- sleeve
- grout
- positioning baffle
- grouting sleeve
- grouting
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Abstract
The utility model relates to a steel bar connection is with half grout sleeve, including communicating the integrative screw sleeve of formation in proper order, the toper chamber, grout sleeve, be equipped with first internal thread in the screw sleeve, install out the grout pipe on the toper chamber, install grout pipe on the grout sleeve, grout sleeve inner wall is equipped with the rectangle internal thread, keeps away from toper chamber one end in the grout sleeve and is equipped with circular positioning baffle, positioning baffle grout sleeve setting perpendicularly, is equipped with the through-hole in the middle of the positioning baffle, through-hole and ordinary reinforcing bar size cooperation, positioning baffle is outer along passing through threaded connection with grout sleeve. The positioning baffle plate is matched with the rectangular internal thread and the steel bar joint to form a flow guide groove, the filling slurry moves from bottom to top along the flow guide groove to the slurry outlet, and air in the grouting cylinder is pushed out along the rectangular internal thread. This structure has annular shear force key's fastness concurrently, can get rid of the interior air of sleeve again better, prevents to leave over the cavity in grout sleeve at quick grout in-process, has improved the quality of sleeve grout.
Description
Technical Field
The utility model relates to an assembly type structure field, concretely relates to steel bar connection is with half grout sleeve.
Background
As the assembly type building is more and more popular, the sleeve grouting technology used by the assembly type building is more and more widely applied. The grouting sleeve technology is a combination of a specially processed sleeve, matched grouting material and steel bar assembly, and the steel bar and the sleeve are connected by injecting quick-hardening non-shrinkage grouting material and depending on the bonding and meshing action between materials when the steel bar is connected. The sleeve grouting joint has the advantages of reliable performance, wide applicability, simplicity and convenience in installation and the like. The grout sleeve divide into full grout sleeve and half grout sleeve, and full grout sleeve generally is used for the installation of butt joint to prefabricated crossbeam, and half grout sleeve generally is used for the installation of butt joint to the vertical direction of prefabricated vertical wall body or wall post. The grouting material has the characteristics of quick hardening and no shrinkage, so that the grouting time control is required. The sleeve grout quality requirement need empty sleeve inside air fast, and the grout sleeve that uses now adopts a plurality of annular shear force key structures in order to increase the adhesive force of grout material, has the interior air exhaust hidden danger of sleeve when the grout speed improves.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem who exists among the prior art, the utility model provides a steel bar connection is with half grout sleeve, this half grout sleeve sets up continuous rectangle internal thread at a grout section of thick bamboo inner wall, stretch into the end at a grout section of thick bamboo inner wall steel bar joint simultaneously and set up a positioning baffle that can dismantle through the screw thread, positioning baffle central point puts and is equipped with the locating hole with reinforcing bar size complex, positioning baffle sets up to the convergent form ARC structure that the edge is thin in the middle of in grout section of thick bamboo inboard, when grout mouthful injection packing thick liquid, this ARC structure and steel bar joint, rectangle interior screw-thread fit forms the guiding gutter, the packing thick liquid that up promotes earlier injection down of back injection moves to grout outlet along the guiding gutter, along rectangle internal thread with grout section of thick bamboo interior air release in the removal. This structure has annular shear force key's fastness concurrently, can get rid of the interior air of sleeve again better, prevents to grout the in-process fast and leaves over the cavity in annular shear force key department, has improved the quality of sleeve grout.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a steel bar connection is with half grout sleeve for with screw-thread reinforcing bar and ordinary reinforcing bar fixed connection, including communicating in proper order and forming integrative screw-thread sleeve, toper chamber, grout sleeve, be equipped with first internal thread in the screw-thread sleeve, install out the thick liquid pipe on the toper chamber, install the grout pipe on the grout sleeve, grout sleeve inner wall is equipped with the rectangle internal thread, keep away from in the grout sleeve toper chamber one end is equipped with circular positioning baffle, positioning baffle with the coaxial setting of grout sleeve, be equipped with the through-hole in the middle of the positioning baffle, the through-hole with ordinary reinforcing bar size cooperation, positioning baffle outer along with grout sleeve fixed connection.
Preferably, the rectangular internal thread is arranged perpendicular to the inner wall of the grouting sleeve.
Preferably, the positioning baffle is arranged in close proximity to the edge of the grout sleeve.
Preferably, the positioning baffle is provided with a tapered cambered surface structure with thin edges and thick middle on one surface facing the inner side of the grouting sleeve.
Preferably, the outer edge of the positioning baffle is provided with an external thread, the inner wall of the grouting sleeve is provided with a second internal thread corresponding to the position of the positioning baffle, and the outer edge of the positioning baffle is connected with the inner wall of the grouting sleeve through a thread.
Preferably, a position of the inner wall of the conical cavity, which abuts against the threaded sleeve, is fixedly provided with a limiting piece, and the limiting piece is arranged perpendicular to the threaded sleeve in the axial direction.
The utility model has the advantages that: the inner wall of the grouting sleeve is vertically provided with continuous rectangular internal threads, meanwhile, a positioning baffle fixedly connected through threads is arranged at the extending end of a steel bar joint on the inner wall of the grouting sleeve, a positioning hole matched with the size of a steel bar is formed in the center of the positioning baffle, and the positioning baffle is provided with a gradually-reduced cambered surface structure with thin edge and thick middle in the direction towards the inner side of the grouting sleeve; when grout is injected into the grout inlet, the cambered surface structure is matched with the rectangular internal threads and the steel bar connector to form a diversion trench, the later injected grout is pushed upwards from the bottom to move towards the grout outlet along the diversion trench, and air in the grout barrel is pushed out along the rectangular internal threads while moving. This structure has annular shear force key's fastness concurrently, can get rid of the interior air of sleeve again better, prevents to grout the in-process fast and leaves over the cavity in annular shear force key department, has improved the quality of sleeve grout. The positioning baffle can be flexibly disassembled and assembled, is suitable for the steel bar connection by the upper insertion method and the steel bar connection by the reverse insertion method, and increases the applicability of the semi-grouting sleeve.
Drawings
FIG. 1 is an external view of the present invention;
fig. 2 is a sectional view taken along a-a of fig. 1 according to the present invention;
FIG. 3 is a schematic view of the connection and grouting of the reinforcing bars of the present invention;
fig. 4 is the structure diagram of the positioning baffle of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. grouting sleeve, 101, rectangle internal thread, 102, second internal thread 2, threaded sleeve, 201, first reinforcing bar entry, 202, first internal thread, 3, toper chamber, 301, spacing piece, 4, grout pipe, 401, grout mouth, 5, grout pipe, 501, grout mouth, 6, locating baffle, 601, external screw thread, 602, second reinforcing bar entry, 7, twisted steel, 8, ordinary reinforcing bar.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
The semi-grouting sleeve for connecting the steel bars as shown in fig. 1 is generally used for butt joint installation of a prefabricated vertical wall or a wall column in the construction industry, is used for fixedly connecting prefabricated internal thread steel bars 7 of the wall with common steel bars 8, and comprises a threaded sleeve 2, a conical cavity 3 and a grouting sleeve 1 which are sequentially communicated to form a whole. As shown in fig. 2, which is a cross-sectional view taken along a-a of fig. 1, a first female screw 202 is provided in the threaded sleeve 2, and the threaded joint at one end of the rebar 7 can be connected with the first female screw 202 on the inner wall of the threaded sleeve 2 by pre-screwing before the wall is prefabricated. Install out thick liquid pipe 5 on the toper chamber 3, go out thick liquid pipe 5 one end and toper chamber 3 intercommunication, the one end that goes out thick liquid pipe 5 and keep away from toper chamber 3 is equipped with out thick liquid mouth 501. Install grout pipe 4 on grout sleeve 1, grout pipe 4 one end and grout sleeve 1 intercommunication, the one end that grout pipe 4 kept away from grout sleeve 1 is equipped with grout mouth 401. The inner wall of the grouting sleeve 1 is provided with a rectangular internal thread 101, one end, far away from the conical cavity 3, of the grouting sleeve 1 is provided with a circular positioning baffle 6, and in order to reduce the gap between the grouting sleeve 1 and a wall body in subsequent assembly, the positioning baffle 6 is arranged close to the edge of the grouting sleeve 1 as much as possible. In order to balance the stress between the positioning baffle 6 and the filling slurry during grouting, the positioning baffle 6 and the grouting sleeve 1 are coaxially arranged. Be equipped with the through-hole in the middle of 6, through-hole and 8 size cooperations of ordinary reinforcing bar, the 8 joint sizes of ordinary reinforcing bar that the through-hole can be connected as required customize. The outer edge of the positioning baffle 6 is fixedly connected with the grouting sleeve 1 through threads.
In this embodiment, the rectangular internal thread 101 is arranged perpendicular to the inner wall of the grouting sleeve 1, so that after the filling grout is solidified, when the connected steel bars are subjected to tensile force, the rectangular internal thread 101 and the solid filling grout form a key connection, and a fixing effect of a shear key is achieved. Simultaneously, because of half grout sleeve is applicable to the steel bar connection of vertical direction, when the grout, fill the thick liquid from down up along grout sleeve 1 inner wall rectangle internal thread 101 fill, release the air in grout sleeve 1 more completely, prevented that the cavity from forming.
In this embodiment, as shown in fig. 3 to 4, the positioning baffle 6 is configured as a tapered arc structure with a thin edge and a thick middle part on one surface facing the grouting sleeve 1. After the joint of the common steel bar 8 is inserted into the grouting sleeve 1, the cambered surface structure can be matched with the rectangular internal thread 101 and the surface of the steel bar to form a diversion trench, so that efficient grouting is facilitated. When grouting, the positioning baffle 6 is impacted by filling slurry, the cambered surface provides an acting force, the advancing direction of the filling slurry is changed from the direction vertical to the inner wall of the grouting sleeve 1 to the direction along the axial direction of the steel bar and towards the slurry outlet pipe 5, and the filling slurry is prevented from overflowing from the extending end of the common steel bar 8.
In this embodiment, the inner wall of the tapered cavity 3 is fixedly provided with a limiting piece 301 at a position close to the threaded sleeve 2, and the limiting piece 301 is perpendicular to the axial direction of the threaded sleeve 2. Spacing piece 301 can set up to the annular piece, also can set up to two piece at least polygons, and its clearance dimension that mutually supports and form should be less than the diameter that the twisted steel 7 connects, prevents that the twisted steel 7 connects to wear out threaded sleeve 2, causes the interference to stretching into of ordinary reinforcing bar 8.
In this embodiment, the outer edge of the positioning baffle 6 is provided with an external thread 601, the inner wall of the grouting sleeve 1 is provided with a second internal thread 102 corresponding to the positioning baffle 6, and the outer edge of the positioning baffle 6 is connected with the inner wall of the grouting sleeve 1 through the external thread 601 and the second internal thread 102. The positioning baffle 6 can be disassembled and assembled through threads.
The half grouting sleeve of the embodiment can be suitable for connecting and installing the steel bars by an upper insertion method and an inverted insertion method. The specific working process is as follows:
when the positioning baffle 6 is fixed on grout sleeve 1, the installation of inserting on being applicable to of this embodiment half grout sleeve, and the bottom of this embodiment half grout sleeve installation upper wall body corresponds, and threaded sleeve 2 is located the upper end in vertical direction, and grout sleeve 1 is located the lower extreme in vertical direction promptly. The joint of the deformed steel bar 7 at the bottom of the upper wall body passes through the first steel bar inlet 201 in advance to be fixedly connected with the deformed sleeve 2, the common steel bar 8 extends into the grouting sleeve 1 from the second steel bar inlet 602 below and is grouted through the grouting port 401, and when filling grout is discharged from the air and overflows from the grouting port 501, an operator seals the grouting port 501 and the grouting port 401 by using sealing objects such as rubber plugs;
when this embodiment half grout sleeve is used for the back-inserting method installation, this embodiment half grout sleeve installs the top at lower floor's wall body promptly, and what correspond this moment, grout sleeve 1 is located the upper end in the vertical direction, and threaded sleeve 2 is located the lower extreme in the vertical direction, will fix a position baffle 6 and take off this moment. When the installation is performed by the reverse insertion method, the grout outlet 501 is used as a grout outlet, and the grout outlet 401 is used as a grout outlet or is pre-blocked (may be left unused). The connector of the twisted steel 7 at the top of the lower wall body passes through the first steel inlet 201 in advance to be fixedly connected with the twisted sleeve 2, at the moment, a mode that the common steel bar 8 is inserted into the second steel inlet 602 from the upper part and then grouted can be adopted, and a mode that the common steel bar 8 is inserted into the second steel inlet 602 from the upper part and then grouted can be adopted. The manner of grouting first and then inserting the ordinary rebar 8 quickly can allow an operator to more intuitively observe the grouting effect, and can be taken as a preferred scheme.
No matter use and insert the method or insert the method steel bar connection mounting means backward, all be from the below entrance grout, export out the thick liquid from the top, fill the thick liquid and follow from up to advance until filling up the space in the whole half grout sleeve along the rectangle internal thread 101 of grout sleeve 1 inner wall down, can push out the air in the half grout sleeve well, avoid producing the cavity, promoted steel bar connection's reliability.
The utility model provides a semi-grouting sleeve for connecting steel bars, which is characterized in that continuous rectangular internal threads are vertically arranged on the inner wall of the grouting sleeve, a circular positioning baffle fixedly connected through threads is arranged at the extending end of a steel bar joint on the inner wall of the grouting sleeve, the central position of the positioning baffle is provided with a positioning hole (through hole) matched with the size of a steel bar, and the positioning baffle is arranged into a tapered cambered surface structure with thin edge and thick middle part towards the inner side direction of the grouting sleeve; when grout is injected into the grout inlet, the cambered surface structure and the rectangular internal threads are matched to form a diversion trench, the later injected grout is pushed upwards from bottom to top to move towards the grout outlet along the diversion trench, and the air in the grout barrel is pushed out along the rectangular internal threads while moving. This structure has annular shear force key's fastness concurrently, can get rid of the interior air of sleeve again better, prevents to grout the in-process fast and leaves over the cavity in annular shear force key department, has improved the quality of sleeve grout.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A semi-grouting sleeve for connecting reinforcing steel bars is used for fixedly connecting a threaded reinforcing steel bar (7) with a common reinforcing steel bar (8) and comprises a threaded sleeve (2), a conical cavity (3) and a grouting sleeve (1) which are sequentially communicated into a whole, a first internal thread (202) is arranged in the threaded sleeve (2), a grout outlet pipe (5) is arranged on the conical cavity (3), a grout pipe (4) is arranged on the grout sleeve (1), it is characterized in that the inner wall of the grouting sleeve (1) is provided with a rectangular internal thread (101), a round positioning baffle (6) is arranged at one end of the grouting sleeve (1) far away from the conical cavity (3), the positioning baffle (6) and the grouting sleeve (1) are coaxially arranged, a through hole is arranged in the middle of the positioning baffle (6), the through hole is matched with the common steel bar (8) in size, and the outer edge of the positioning baffle (6) is fixedly connected with the grouting sleeve (1).
2. A semi-grouting sleeve for steel reinforcement connection according to claim 1, characterised in that the rectangular internal thread (101) is arranged perpendicular to the inner wall of the grouting sleeve (1).
3. A semi-grouting sleeve for steel reinforcement connection according to claim 1, characterised in that the positioning baffles (6) are arranged against the edge of the grouting sleeve (1).
4. A semi-grouting sleeve for connecting steel bars according to claim 1, characterised in that the positioning baffle (6) is provided with a tapered cambered surface structure with thin edges and thick middle on one surface facing the inside of the grouting sleeve (1).
5. The semi-grouting sleeve for connecting the steel bars according to claim 1, wherein the outer edge of the positioning baffle (6) is provided with an external thread (601), the inner wall of the grouting sleeve (1) is provided with a second internal thread (102) corresponding to the position of the positioning baffle (6), and the outer edge of the positioning baffle (6) is in threaded connection with the inner wall of the grouting sleeve (1).
6. A semi-grouting sleeve for connecting steel bars according to claim 1, characterized in that the inner wall of the conical cavity (3) is fixedly provided with a limiting piece (301) in a position abutting against the threaded sleeve (2), and the limiting piece (301) is arranged perpendicular to the axial direction of the threaded sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920815668.XU CN210597889U (en) | 2019-05-31 | 2019-05-31 | Semi-grouting sleeve for steel bar connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920815668.XU CN210597889U (en) | 2019-05-31 | 2019-05-31 | Semi-grouting sleeve for steel bar connection |
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| Publication Number | Publication Date |
|---|---|
| CN210597889U true CN210597889U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920815668.XU Active CN210597889U (en) | 2019-05-31 | 2019-05-31 | Semi-grouting sleeve for steel bar connection |
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| CN (1) | CN210597889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622559A (en) * | 2021-09-03 | 2021-11-09 | 耀华建设管理有限公司 | Civil building assembly type wall based on BIM and construction method thereof |
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2019
- 2019-05-31 CN CN201920815668.XU patent/CN210597889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622559A (en) * | 2021-09-03 | 2021-11-09 | 耀华建设管理有限公司 | Civil building assembly type wall based on BIM and construction method thereof |
| CN113622559B (en) * | 2021-09-03 | 2022-02-18 | 耀华建设管理有限公司 | Civil building assembly type wall based on BIM and construction method thereof |
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Denomination of utility model: A semi grouting sleeve for reinforcement connection Effective date of registration: 20221209 Granted publication date: 20200522 Pledgee: Bank of China Limited Ezhou branch Pledgor: HUBEI QIANDAO NEW MATERIAL Co.,Ltd. Registration number: Y2022420000383 |