CN212295344U - Deformed steel bar connecting sleeve - Google Patents
Deformed steel bar connecting sleeve Download PDFInfo
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- CN212295344U CN212295344U CN202020362986.8U CN202020362986U CN212295344U CN 212295344 U CN212295344 U CN 212295344U CN 202020362986 U CN202020362986 U CN 202020362986U CN 212295344 U CN212295344 U CN 212295344U
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Abstract
The utility model provides a deformed steel bar connecting sleeve, which comprises a grouting sleeve with a shear key, a grouting opening, a grout outlet, a grout sealing plug arranged at the lower opening of the grouting sleeve, butt-joint reinforcing steel bars and deformed steel bars, wherein the lower ends of the deformed steel bars are provided with thread parts; a threaded connecting sleeve is arranged in the grouting sleeve, the threaded part is matched in the threaded connecting sleeve, and a sealing sleeve is arranged between the threaded steel bar above the threaded connecting sleeve and the grouting sleeve; the threaded connecting sleeve is provided with a construction hole, and the grout outlet is matched in the construction hole; the lower port of the threaded connecting sleeve is also provided with an inward flange. The utility model discloses avoid the protruding rib direct contact grout sleeve of screw-thread steel, except that the lower port of screw-thread steel and thick liquids contact are held and are held, additionally adopt the threaded connection mode to fix the screw-thread steel in grout sleeve, the screw-thread steel holds with grout sleeve holds and holds the point to have: the grabbing between the head of the rebar and the slurry and the grabbing between the threaded portion and the threaded connecting sleeve can firmly ensure the stability of the rebar in the grouting sleeve through the grabbing point at the position.
Description
Technical Field
The utility model relates to steel bar engineering application, in particular to screw-thread steel connecting sleeve.
Background
The grouting sleeve connection technology is a novel steel structure connection mode generated by the requirements of engineering practice and technical development, in practical engineering application, a sleeve is embedded into a connection end of a component in advance when a prefabricated component is manufactured, and after an exposed steel bar of another connection component is inserted into the sleeve and the component is installed and positioned in site construction, the steel bar is connected through grouting.
The grouting sleeve comprises a full grouting sleeve and a half grouting sleeve, the steel bars to be connected usually comprise plain steel bars, ribbed steel bars and the like, and the ribbed steel bars are also called as deformed steel bars because the surface of the ribbed steel bars is distributed with raised ribs similar to thread structures. When placing ribbed steel bar in grout sleeve, its surface has protruding rib, therefore it can not direct face laminating contact with grout sleeve inner wall, though the back is in the grout in later stage, the thick liquids sclerosis can be grabbed with the protruding rib of ribbed steel bar and held, but protruding rib area is little, thereby it is little with grabbing between the thick liquids area, when receiving external pulling force, very easily dial out the thick liquids layer with ribbed steel bar, thereby with the reinforcing bar separation of butt joint, this has just lost the telescopic effect of grout.
SUMMERY OF THE UTILITY MODEL
In order to solve the disadvantages of the prior art, the utility model provides a deformed steel bar connecting sleeve.
The utility model provides a technical scheme is: a deformed steel bar connecting sleeve comprises a grouting sleeve with a shear key, a grouting opening, a grout outlet, a grout sealing plug arranged at the lower opening of the grouting sleeve, butt-joint reinforcing steel bars and deformed steel bars, wherein the lower ends of the deformed steel bars are provided with threaded parts; a threaded connecting sleeve is arranged in the grouting sleeve, the threaded part is matched in the threaded connecting sleeve, and a sealing sleeve is arranged between the threaded steel bar above the threaded connecting sleeve and the grouting sleeve; the threaded connecting sleeve is provided with a construction hole, and the grout outlet is matched in the construction hole; the lower port of the threaded connecting sleeve is also provided with an inward flange.
The utility model discloses avoid the protruding rib direct contact grout sleeve of screw-thread steel, except that the lower port of screw-thread steel and thick liquids contact are held and are held, additionally adopt the threaded connection mode to fix the screw-thread steel in grout sleeve, increase protruding rib and grout sleeve hold and hold the area, even receive external great pulling force, also can not dial the thick liquids layer with the ribbed steel and make and dock the reinforcing bar separation. The shear key is of a trapezoidal structure and is integrally processed and formed on the inner wall of the grouting sleeve, slurry enters from the grouting opening, redundant slurry overflows from the slurry outlet, and the butt-joint reinforcing steel bar and the threaded reinforcing steel bar are clamped and connected together after the slurry in the grouting sleeve is hardened; in order to set up the threaded connection structure, the utility model is provided with a threaded part on the lower end part of the deformed steel bar, which is an external thread structure, and is partially processed and arranged, so as to be convenient for matching and connecting the following threaded connection sleeve, and the deformed steel bar is tightly connected in the grouting sleeve by being in threaded connection with the threaded connection sleeve fixed in the grouting sleeve; for fixed mounting spiro union, be equipped with the thread connection cover in grout sleeve inside, thread connection cover cooperation welding is on the trapezium structure edge of shear force key, and the port supports on the shear force key on the thread connection cover, and screw thread portion cooperates in the thread connection cover, and here twisted steel bar has with the telescopic point of grabbing of grout: the grabbing between the head of the threaded steel bar and the slurry and the grabbing between the threaded part and the threaded connecting sleeve can firmly ensure the stability of the threaded steel bar in the grouting sleeve at the grabbing point. In order to prevent slurry leakage, a sealing sleeve is sleeved between the threaded steel bar above the threaded connecting sleeve and the grouting sleeve; a construction hole is arranged on the threaded connecting sleeve, and the grout outlet is in threaded connection with the construction hole in a matching manner; in order to improve the grasping strength between the threaded connecting sleeve and the hardened slurry, an inward flange is further arranged at the lower end opening of the threaded connecting sleeve, and the inward flange is firmly grasped in the slurry after the slurry is hardened.
The utility model has the beneficial technical effects that: the utility model discloses avoid the protruding rib direct contact grout sleeve of screw-thread steel, except that the lower port of screw-thread steel and thick liquids contact are held and are held, additionally adopt the threaded connection mode to fix the screw-thread steel in grout sleeve, increase protruding rib and grout sleeve hold and hold the area, even receive external great pulling force, also can not dial the thick liquids layer with the ribbed steel and make and dock the reinforcing bar separation. The holding point of twisted steel and grout sleeve has: the grabbing between the head of the threaded steel bar and the slurry and the grabbing between the threaded part and the threaded connecting sleeve can firmly ensure the stability of the threaded steel bar in the grouting sleeve at the grabbing point.
Drawings
FIG. 1 is a schematic diagram of the cross-section construction structure of the present invention;
FIG. 2 is a sectional view of the screw coupling sleeve of FIG. 1;
FIG. 3 is a side view of the threaded connection sleeve of FIG. 1;
in the figure, 1, a threaded steel bar, 101, a threaded part, 2, an end cover, 3, a sealing sleeve, 4, a grouting sleeve, 5, a threaded connecting sleeve, 6, a grout outlet, 7, grout, 8, a shear key, 9, a supporting sleeve, 10, a butt joint steel bar, 11, a grouting opening, 12, a grout sealing plug, 13, an inner flanging, 14 and a construction hole are arranged.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, the relative terms "upper", "lower", "left", "right", "inner", "outer" and other position indication positions are only based on the position shown in the drawings to simplify the description of the present invention, but not the position and structure that the components must have, and thus, the limitation of the present invention cannot be understood.
Example 1
As shown in fig. 1, 2 and 3, the deformed steel bar connecting sleeve comprises a grouting sleeve 4 with a shear key 8, a grouting opening 11, a grout outlet 6, a grout sealing plug 12 arranged at the lower opening of the grouting sleeve 4, butt-jointed reinforcing steel bars 10 and deformed steel bars 1, wherein the lower ends of the deformed steel bars 1 are provided with thread parts 101; a threaded connecting sleeve 5 is arranged in the grouting sleeve 4, the threaded part 101 is matched in the threaded connecting sleeve 5, and a sealing sleeve 3 is arranged between the rebar 1 above the threaded connecting sleeve 5 and the grouting sleeve 4; the threaded connecting sleeve 5 is provided with a construction hole 14, and the grout outlet 6 is matched in the construction hole 14; the lower port of the threaded connecting sleeve 5 is also provided with an inward flange 13.
The utility model discloses avoid the protruding rib direct contact grout sleeve of screw-thread steel, except that the lower port of screw-thread steel and thick liquids contact are held and are held, additionally adopt the threaded connection mode to fix the screw-thread steel in grout sleeve, increase protruding rib and grout sleeve hold and hold the area, even receive external great pulling force, also can not dial the thick liquids layer with the ribbed steel and make and dock the reinforcing bar separation. The deformed steel bar connecting sleeve comprises a grouting sleeve 4 with a shear key 8, a grouting opening 11, a grout outlet 6, a grout sealing plug 12 arranged at the lower opening of the grouting sleeve 4, a butt joint reinforcing steel bar 10 and a deformed steel bar 1, wherein the shear key 8 is of a trapezoidal structure and is integrally processed and formed on the inner wall of the grouting sleeve 4, a slurry 7 is fed from the grouting opening 11, a surplus slurry 5 overflows from the grout outlet 6, and the butt joint reinforcing steel bar 10 and the deformed steel bar 1 are clamped and connected together after the slurry 5 in the grouting sleeve 4 is hardened; in order to set up the threaded connection structure, the utility model is characterized in that the threaded part 101 is processed on the lower end part of the deformed steel bar 1, and is an external thread structure, and the threaded connection sleeve 5 is processed and arranged partially, so as to be convenient for matching and connecting with the following deformed steel bar 1, and the deformed steel bar 1 is tightly connected in the grouting sleeve 4 through being in threaded connection with the deformed steel bar 5 fixed in the grouting sleeve 4; for fixed mounting spiro union, be equipped with thread connection sleeve 5 inside grout sleeve 4, thread connection sleeve 5 cooperation welding is on the trapezium structure edge of shear force key 8, and the port supports on shear force key 8 on thread connection sleeve 5, and screw thread portion 101 cooperates in thread connection sleeve 5, and here twisted steel 1 has with the grab of grout sleeve 4 some: the grasping between the head of the rebar 1 and the grout 7, the grasping between the threaded portion 101 and the nipple 5, and therefore the grasping point here can firmly ensure the stability of the rebar 1 in the grouting sleeve 4. In order to prevent the leakage of the slurry 7, a sealing sleeve 3 is sleeved between the deformed steel bar 1 above the threaded connecting sleeve 5 and the grouting sleeve 4; as shown in the attached figure 3, a construction hole 14 is formed in the threaded connecting sleeve 5, and the grout outlet 6 is in threaded connection with the construction hole 14 in a matching manner; in order to improve the holding strength between the threaded connecting sleeve 5 and the hardened slurry 7, an inward flange 13 is further arranged at the lower end opening of the threaded connecting sleeve 5, and the inward flange 13 is firmly held in the slurry 7 after the slurry 7 is hardened.
Further, the distance between the threaded connecting sleeve 5 and the upper opening of the grouting sleeve 4 is 25-45 mm. In this embodiment, in order to avoid the construction connection distance between the threaded connection sleeve 5 and the upper opening of the grouting sleeve 4 from being large and increase the construction difficulty, the distance between the threaded connection sleeve 5 and the upper opening of the grouting sleeve 4 is 30 mm.
Further, the outer surface of the upper part of the threaded connecting sleeve 5 is of an inverted cone structure. The inverted cone structure can be matched with the trapezoidal structure of the shear key 8 so as to be abutted and fixed on the shear key 8.
Further, the inner flanging 13 is perpendicular to the twisted steel 1, the inner flanging 13 is of a circular ring structure, and the inner diameter of the inner flanging is 1/2-2/3 of the diameter of the twisted steel 1. The inner flanging 13 is integrally processed on the threaded connecting sleeve 5, is of an annular structure, is provided with a hollow hole in the middle, is perpendicular to the threaded steel bar 1, and has the inner diameter of 2/3 the diameter of the threaded steel bar 1 in order to ensure the maximum gripping area between the inner flanging 13 and the slurry 7.
Furthermore, the length of the thread part 101 is 1/4-1/2 of the length of the thread connecting sleeve 5. In this embodiment, the thread processing difficulty is increased when the length of the thread part 101 is too long, so that the length of the thread part 101 is 1/4 of the length of the thread connecting sleeve 5.
Furthermore, a supporting sleeve 9 is further sleeved outside the grouting sleeve 4, an end cover 2 is sleeved at the port of the grouting sleeve 4 above the supporting sleeve 9, and the sealing sleeve 3 is sleeved in the end cover 2. In this embodiment, in order to strengthen the overall strength of the grouting sleeve 4, the grouting sleeve 4 is further sleeved with a supporting sleeve 9, the end cover 2 is sleeved at the port of the grouting sleeve 4 above the supporting sleeve 9, and the sealing sleeve 3 is sleeved in the end cover 2.
Obviously, the utility model discloses avoid the protruding rib direct contact grout sleeve of screw-thread steel, except that the lower port of screw-thread steel and thick liquids contact are held and are grabbed, additionally adopt threaded connection mode to fix the screw-thread steel in grout sleeve, increase protruding rib and grout sleeve and grab the area, ribbed steel bar is very firm with the connection of butt joint reinforcing bar in grout sleeve.
The foregoing is a preferred embodiment of the present invention, and it should be understood that those skilled in the art can derive the related technical solutions through logic analysis, reasoning or experiment based on the present invention without creative efforts, and therefore, these related technical solutions should be within the protection scope of the present claims.
Claims (6)
1. The utility model provides a deformed steel bar connecting sleeve, includes grout sleeve (4), grout mouth (11), grout outlet (6) of taking shear force key (8), locates grout plug (12), butt joint reinforcing bar (10) and deformed steel bar (1) of grout sleeve (4) end opening, its characterized in that: the lower end of the twisted steel bar (1) is provided with a thread part (101); a threaded connecting sleeve (5) is arranged in the grouting sleeve (4), the threaded part (101) is matched in the threaded connecting sleeve (5), and a sealing sleeve (3) is arranged between the threaded steel bar (1) above the threaded connecting sleeve (5) and the grouting sleeve (4); the threaded connecting sleeve (5) is provided with a construction hole (14), and the slurry outlet (6) is matched in the construction hole (14); the lower port of the threaded connecting sleeve (5) is also provided with an inward flanging (13).
2. A deformed steel bar coupling sleeve according to claim 1, wherein: the distance between the threaded connecting sleeve (5) and the upper opening of the grouting sleeve (4) is 25-45 mm.
3. A deformed steel bar coupling sleeve according to claim 2, wherein: the outer surface of the upper part of the threaded connecting sleeve (5) is of an inverted cone structure.
4. A deformed steel bar coupling sleeve according to claim 3, wherein: the inner flanging (13) is perpendicular to the threaded steel bar (1), the inner flanging (13) is of a circular ring structure, and the inner diameter of the inner flanging is 1/2-2/3 of the diameter of the threaded steel bar (1).
5. A deformed steel bar coupling sleeve according to claim 4, wherein: the length of the thread part (101) is 1/4-1/2 of the length of the thread connecting sleeve (5).
6. A threaded steel connection sleeve according to claim 1 or 5, characterized in that: the grouting sleeve (4) is further sleeved with a supporting sleeve (9), an end cover (2) is sleeved at the port of the grouting sleeve (4) above the supporting sleeve (9), and the sealing sleeve (3) is sleeved in the end cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362986.8U CN212295344U (en) | 2020-03-20 | 2020-03-20 | Deformed steel bar connecting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362986.8U CN212295344U (en) | 2020-03-20 | 2020-03-20 | Deformed steel bar connecting sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN212295344U true CN212295344U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020362986.8U Active CN212295344U (en) | 2020-03-20 | 2020-03-20 | Deformed steel bar connecting sleeve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419217A (en) * | 2022-09-30 | 2022-12-02 | 威信广厦模块住宅工业有限公司 | Integrated modular building component reinforcing steel bar connecting assembly |
-
2020
- 2020-03-20 CN CN202020362986.8U patent/CN212295344U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419217A (en) * | 2022-09-30 | 2022-12-02 | 威信广厦模块住宅工业有限公司 | Integrated modular building component reinforcing steel bar connecting assembly |
| CN115419217B (en) * | 2022-09-30 | 2023-12-01 | 威信广厦模块住宅工业有限公司 | Integrated modularized building component steel bar connecting assembly |
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