CN214090613U - Semi-grouting sleeve for fabricated building and connecting joint thereof - Google Patents
Semi-grouting sleeve for fabricated building and connecting joint thereof Download PDFInfo
- Publication number
- CN214090613U CN214090613U CN202022652806.2U CN202022652806U CN214090613U CN 214090613 U CN214090613 U CN 214090613U CN 202022652806 U CN202022652806 U CN 202022652806U CN 214090613 U CN214090613 U CN 214090613U
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- Prior art keywords
- cylinder section
- grouting
- threaded connection
- sleeve
- conical cylinder
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 239000011440 grout Substances 0.000 claims abstract description 29
- 238000003780 insertion Methods 0.000 claims abstract description 21
- 230000037431 insertion Effects 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims description 17
- 238000010276 construction Methods 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 208000034189 Sclerosis Diseases 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a half grout sleeve and connected node for assembly type structure for solve and connect not firm problem between grout sleeve and the reinforcing bar. The grouting sleeve comprises a threaded connection part, a grouting part and anti-seismic locking blocks, the threaded connection part is in threaded connection with a steel bar I, the grouting part is provided with a straight cylinder section at the upper part and a conical cylinder section at the lower part, the upper part of the straight cylinder section is connected with the external thread of the threaded connection part through threaded connection, the straight cylinder section and the conical cylinder section are provided with a grouting port and a grout overflow port, the bottom of the conical cylinder section is provided with a steel bar II insertion hole, and the anti-seismic locking blocks are uniformly distributed in the inner cavity of the conical cylinder section; the upper end of the pressure spring is abutted against the threaded connecting part, the lower end of the pressure spring is abutted against the gasket, and the gasket is pressed on the steel ball. Through the setting of antidetonation latch segment, after the grout, rely on the effect of antidetonation latch segment, the steel ball acts on the reinforcing bar with the thick liquids after the sclerosis jointly, improves the tensile drawing performance of being connected of reinforcing bar and grout sleeve.
Description
Technical Field
The utility model relates to an assembled building engineering technique, especially by the grout sleeve technique of wide use in this technique.
Background
In the construction process of the fabricated building, the connection between the prefabricated part and the building body is mainly completed by using a grouting sleeve and a grouting process at present. The grouting sleeve can be divided into a half grouting sleeve and a full grouting sleeve according to different grouting processes.
The half grouting sleeve is characterized in that one end of the half grouting sleeve is a threaded end and is connected with the upper steel bar through threaded connection, and the other end of the half grouting sleeve is a grouting end and is connected with the lower steel bar through a grouting process.
In chinese patent publication CN206457996, a conventional half grouting sleeve is introduced in detail, and the half grouting sleeve comprises a threaded connection end, a grouting opening and a grout overflow opening, wherein a groove and a boss are arranged on an inner wall of an inner cavity of the grouting end along a length direction, and through the arrangement of the groove and the boss, the increase of the drawing force of the grouting sleeve and the steel bar is realized, so that the connection of the steel bar is firm and reliable. The groove and the lug boss can increase the tensile strength of the steel bar pulled out from the inner cavity, but also increase the insertion smoothness of the steel bar in the construction butt joint stage, and the increase of the tensile strength is still limited.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a grout sleeve and application method thereof for solve current grout sleeve and treat the problem that the easy secondary drops during the construction between the connecting reinforcement, and the problem of rocking easily between reinforcing bar and the grout sleeve during construction grout.
The utility model provides a technical scheme that its technical problem adopted does:
grout sleeve, including threaded connection spare and grout part to and antidetonation latch segment, its characterized in that:
the threaded connecting part is provided with an internal thread and an external thread, the internal thread is in threaded connection with the steel bar I,
the grouting part is provided with a straight cylinder section at the upper part and a conical cylinder section at the lower part, wherein the upper part of the straight cylinder section is connected with the external thread of the threaded connecting part through threaded connection,
the straight cylinder section and the conical cylinder section are respectively provided with a grouting opening and a grout overflow opening, the inner wall of the conical cylinder section is provided with a plurality of vertical ribs, the bottom of the conical cylinder section is provided with a reinforcing steel bar II insertion opening,
the grouting channel of the slurry is injected from the grouting opening at the upper side and overflows from the slurry overflow opening at the lower side;
a plurality of anti-seismic locking blocks are uniformly distributed in the inner cavity of the conical cylinder section;
the insertion end of the insertion opening of the steel bar II is in an inward concave conical shape;
the steel ball pressing device is characterized by further comprising a pressure spring and a gasket, wherein the upper end of the pressure spring is abutted against the threaded connecting part, the lower end of the pressure spring is abutted against the gasket, and the gasket is in contact with the steel ball and compresses the steel ball.
The ribs extend up to the straight barrel section.
The ribs are uniformly distributed and divide the inner cavity into a plurality of anti-seismic lock block installation spaces.
The anti-seismic locking block is a round steel ball.
The round steel ball is a steel ball detached from the waste bearing.
The anti-seismic locking block is a trapezoidal arc-shaped body.
The upper end of the threaded connecting part is provided with a square clamp.
Connected node, including reinforcing bar I, reinforcing bar II, threaded connection spare and grout part to and antidetonation latch segment, its characterized in that:
the threaded connecting part is provided with an internal thread and an external thread, the internal thread is in threaded connection with the steel bar I,
the grouting part is provided with a straight cylinder section at the upper part and a conical cylinder section at the lower part, wherein the upper part of the straight cylinder section is connected with the external thread of the threaded connecting part through threaded connection,
the straight cylinder section and the conical cylinder section are respectively provided with a grouting opening and a grout overflow opening, the inner wall of the conical cylinder section is provided with a plurality of vertical ribs, the bottom of the conical cylinder section is provided with a reinforcing steel bar II insertion opening,
the grouting channel of the slurry is injected from the grouting opening at the upper side and overflows from the slurry overflow opening at the lower side;
a plurality of anti-seismic locking blocks are uniformly distributed in the inner cavity of the conical cylinder section;
the insertion end of the insertion opening of the steel bar II is in an inward concave conical shape;
the steel bar II is inserted into and clamped by the anti-seismic locking block, and the inner cavity of the grouting component is filled with high-strength mortar.
The utility model has the advantages that:
through the setting of antidetonation latch segment, after the grout, rely on the effect of antidetonation latch segment, the steel ball acts on reinforcing bar II with the thick liquids after the sclerosis jointly, improves the tensile drawing performance of connecting of reinforcing bar II and grout sleeve.
At the assembled construction stage, form one-way locking structure between reinforcing bar and the antidetonation latch segment of lower part, can prevent that the secondary between reinforcing bar and the grout sleeve from rocking, can effectual improvement efficiency of construction.
After the grouting sleeve is subjected to a drawing-resistant test, the drawing-resistant performance of the grouting sleeve is at least improved by more than 10% compared with that of the traditional grouting sleeve with the same size.
Drawings
FIG. 1 is a full sectional view of the first embodiment.
FIG. 2 is a cross-sectional view taken along line A- -A in FIG. 1.
Fig. 3 is a perspective view of the screw coupling member.
Fig. 4 is a full sectional view of the second embodiment.
FIG. 5 is a full sectional view of the third embodiment.
FIG. 6 is a full sectional view of the fourth embodiment.
Fig. 7 is a diagram illustrating the use of the shock-resistant locking block according to the fourth embodiment.
In the figure: 100 threaded connection, 110 internal threads, 120 external threads, 130 square card,
200 grouting parts, 210 straight cylinder sections, 220 conical cylinder sections, 221 ribs, 230 grouting ports, 240 grout-overflowing ports, 250 reinforcing steel bar II inserting ports, 251 sealing rings,
300, the space of 310,
a 400 pressure spring, a 410 gasket,
01 reinforcing steel bar I and 02 reinforcing steel bar II.
Detailed Description
Example one
Referring to fig. 1, 2 and 3, the grout sleeve includes a screw coupling part and a grout member, and a plurality of anti-seismic locking blocks, wherein the screw coupling part and the grout member are respectively one, and the detailed structure thereof will be described below.
The screw connection member 100 is formed in a cylindrical shape as a whole, has an internal thread 110 and an external thread 120, and is formed by machining a steel bar. The internal thread is used for being in threaded connection with the upper steel bar I, and the end of the upper steel bar I01 needs to be sleeved with a thread correspondingly. In order to facilitate the connection of the screw coupling part and the upper reinforcing bar i, a wrench-operated square clip 130 is provided at the upper end of the screw coupling part, and referring to fig. 3, it is convenient to use a wrench for fastening and position adjustment.
The grouting part 200 comprises a straight cylinder section 210 and a conical cylinder section 220, wherein the upper part of the straight cylinder section 210 is provided with internal threads which are connected with the threaded connecting part through threaded connection, and one side of the straight cylinder section 210 is provided with a grouting opening 230 for grouting. The conical cylinder section 220 is in a conical structure and is positioned below the straight cylinder section, and four vertically arranged ribs 221 are arranged on the inner wall of the conical cylinder section 220. The bottom of the conical cylinder section is provided with a steel bar II insertion hole 250, when the steel bar II 02 is inserted, the steel bar II insertion hole is blocked, and meanwhile, a sealing ring 251 is arranged at the steel bar II insertion hole for blocking grouting. And a slurry overflow port 240 is arranged on the upper side of the conical barrel section close to the insertion port of the reinforcing steel bar II and used for overflowing redundant slurry.
The grouting channel of the slurry is injected from the grouting opening at the upper side and overflows from the slurry overflow opening at the lower side.
The lower side of the steel bar II 02 insertion opening is in an inwards concave conical shape, so that the insertion of the steel bar II is facilitated.
The anti-seismic locking block 300 is used for locking the steel bar II 02 and the grouting component 200, and in the embodiment, the anti-seismic locking block is in a regular spherical shape, for example, a steel ball with the diameter of 2 cm recovered from a waste bearing has no special requirement, and the waste steel ball can meet the use requirement. The use cost is reduced, and the waste is recycled. The contact part of the steel ball, the rib and the inner wall is in an open structure, referring to fig. 2, namely, a gap 310 is formed between the steel ball, the rib and the inner wall, and grouting slurry can freely flow through the gap.
The specification and size requirements of the steel balls in the same batch are basically the same.
The number of the steel balls is four, each steel ball corresponds to one pressure spring 400, the upper end of each pressure spring is abutted against the threaded connecting part, and the lower end of each pressure spring is pressed on the steel ball, so that the thrust pretension of the steel balls is realized.
The effect of antidetonation latch segment is, the reinforcing bar II with the locking dynamics of grout part, the elastic force of cooperation pressure spring prevents that reinforcing bar II from extracting from the grout part, has fine one-way locking effect, simultaneously, at reinforcing bar II insertion stage, can not prevent it to extract.
The steel balls can also be replaced by polygonal bodies, such as slightly irregular steel balls.
The using method comprises the following steps:
firstly, a threaded connecting part 100 is fixed at the bottom of a steel bar I in advance, an upper port of a steel bar II is inserted into a grouting part 200, four steel balls are placed in a grouting inner cavity and are uniformly distributed, then the grouting part 200 and the threaded connecting part 100 are connected in a screwing mode to form a whole, and in the process, the steel balls have good up-and-down movement space and floating space under the action of a pressure spring, so that the locking of the steel bar II is realized, and the construction efficiency is improved;
and step two, grouting, namely grouting the slurry to the inside through a grouting opening until a large amount of slurry with a stable quantity overflows from an overflow opening.
And step three, curing for 24 hours to complete connection.
Example two
Referring to fig. 4, the difference from the first embodiment is that the ribs 221 in the first embodiment are extended upward to the straight cylinder section and along the inner wall to form partitions for the steel balls, so as to avoid uneven distribution of the steel balls.
EXAMPLE III
Referring to fig. 5, the difference from the first embodiment is that a compression spring 400 is added, and the compression spring is an integral compression spring. The upper end of the pressure spring is abutted against the threaded connecting part 100, the lower end of the pressure spring is abutted against the gasket 410, the steel gasket 410 is in contact with the steel ball, and the steel ball is pressed to enable the steel ball (namely the anti-seismic locking block) to be attached to the steel bar II and the inner wall of the grouting part.
The using method comprises the following steps:
firstly, a threaded connecting part 100 is fixed at the bottom of a steel bar I in advance, an upper port of a steel bar II is inserted into a grouting part 200, four steel balls are placed in a grouting inner cavity, the steel balls are uniformly distributed, then a gasket and a pressure spring 400 are sequentially placed, and finally the grouting part 200 and the threaded connecting part 100 are screwed and connected to form a whole;
and step two, grouting, namely grouting the slurry to the inside through a grouting opening until a large amount of slurry with a stable quantity overflows from an overflow opening.
And step three, curing for 24 hours to complete connection.
Example four
Referring to fig. 6 and 7, the difference from the third embodiment is that the anti-seismic locking block 300 has a different style, and a block body similar to a trapezoid is used, so that the anti-seismic locking block with such a structure can play a better locking role, but at the same time, the anti-seismic locking block is an irregular body, so that the cost is higher.
The same function of this embodiment is realized by providing the compression spring 400.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the present invention without departing from the spirit of the present invention.
Claims (9)
1. A half grout sleeve for prefabricated construction, including threaded connection spare and grout part to and antidetonation latch segment, its characterized in that:
the threaded connecting part is provided with an internal thread and an external thread, the internal thread is in threaded connection with the steel bar I,
the grouting part is provided with a straight cylinder section at the upper part and a conical cylinder section at the lower part, wherein the upper part of the straight cylinder section is connected with the external thread of the threaded connecting part through threaded connection,
the straight cylinder section and the conical cylinder section are respectively provided with a grouting opening and a grout overflow opening, the inner wall of the conical cylinder section is provided with a plurality of vertical ribs, the bottom of the conical cylinder section is provided with a reinforcing steel bar II insertion opening,
the grouting channel of the slurry is injected from the grouting opening at the upper side and overflows from the slurry overflow opening at the lower side;
a plurality of anti-seismic locking blocks are uniformly distributed in the inner cavity of the conical cylinder section;
the steel ball bearing is characterized by further comprising a pressure spring and a gasket, wherein the upper end of the pressure spring is abutted against the threaded connecting part, the lower end of the pressure spring is abutted against the gasket, and the gasket is pressed on the steel ball.
2. The semi-grouted sleeve for the fabricated building according to claim 1, wherein the ribs are uniformly distributed and divide the inner cavity into a plurality of anti-seismic locking block installation spaces.
3. The semi-grouted sleeve for prefabricated construction according to claim 2, wherein the ribs extend up to the straight sections.
4. The semi-grouted sleeve for the fabricated building according to claim 1, wherein the anti-seismic locking blocks are round steel balls.
5. The semi-grouting sleeve for prefabricated buildings according to claim 4, wherein the round steel balls are steel balls detached from waste bearings.
6. The semi-grouting sleeve for an assembly type structure as claimed in claim 1, wherein the anti-seismic locking block is a trapezoidal arc-shaped body.
7. The semi-grouting sleeve for prefabricated construction according to claim 1, wherein a square clip is provided on an upper end of the screw coupling member.
8. The semi-grouting sleeve for prefabricated buildings according to claim 1, wherein the insertion end of the insertion port of the rebar II is concave-conical.
9. A connected node for assembly type structure, including reinforcing bar I, reinforcing bar II, threaded connection spare and grout part to and antidetonation latch segment, its characterized in that:
the threaded connecting part is provided with an internal thread and an external thread, the internal thread is in threaded connection with the steel bar I,
the grouting part is provided with a straight cylinder section at the upper part and a conical cylinder section at the lower part, wherein the upper part of the straight cylinder section is connected with the external thread of the threaded connecting part through threaded connection,
the straight cylinder section and the conical cylinder section are respectively provided with a grouting opening and a grout overflow opening, the inner wall of the conical cylinder section is provided with a plurality of vertical ribs, the bottom of the conical cylinder section is provided with a reinforcing steel bar II insertion opening,
the grouting channel of the slurry is injected from the grouting opening at the upper side and overflows from the slurry overflow opening at the lower side;
a plurality of anti-seismic locking blocks are uniformly distributed in the inner cavity of the conical cylinder section;
the insertion end of the insertion opening of the steel bar II is in an inward concave conical shape;
the steel bar II is inserted into and clamped by the anti-seismic locking block, and the inner cavity of the grouting component is filled with high-strength mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022652806.2U CN214090613U (en) | 2020-11-16 | 2020-11-16 | Semi-grouting sleeve for fabricated building and connecting joint thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022652806.2U CN214090613U (en) | 2020-11-16 | 2020-11-16 | Semi-grouting sleeve for fabricated building and connecting joint thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214090613U true CN214090613U (en) | 2021-08-31 |
Family
ID=77450509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022652806.2U Expired - Fee Related CN214090613U (en) | 2020-11-16 | 2020-11-16 | Semi-grouting sleeve for fabricated building and connecting joint thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214090613U (en) |
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2020
- 2020-11-16 CN CN202022652806.2U patent/CN214090613U/en not_active Expired - Fee Related
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| 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: 20210831 |