CN207484836U - A kind of cement grouting steel bar branch sleeve - Google Patents
A kind of cement grouting steel bar branch sleeve Download PDFInfo
- Publication number
- CN207484836U CN207484836U CN201721577488.XU CN201721577488U CN207484836U CN 207484836 U CN207484836 U CN 207484836U CN 201721577488 U CN201721577488 U CN 201721577488U CN 207484836 U CN207484836 U CN 207484836U
- Authority
- CN
- China
- Prior art keywords
- branch sleeve
- sleeve
- sunk structure
- steel bar
- sunk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 14
- 239000010959 steel Substances 0.000 title claims abstract description 14
- 239000004568 cement Substances 0.000 title claims abstract description 13
- 230000003014 reinforcing Effects 0.000 claims abstract description 10
- 238000004080 punching Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 abstract description 4
- 239000011083 cement mortar Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 210000003205 Muscles Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
Abstract
A kind of cement grouting steel bar branch sleeve, it includes branch sleeve, and branch sleeve both ends are equipped with reinforcing bar insert port, and inlet port and outlet port are equipped on branch sleeve, are equipped on branch sleeve, and sunk structure is equipped in the sleeve wall of branch sleeve.The utility model can solve the inner end of existing circular pit structure during rolling, due to stress concentration, it can make the reduction of its integral rigidity in this way, so that sleeve tube wall cracks, tube wall extension, branch sleeve is in use below in this way, the technical issues of being easily broken, bringing great security risk.
Description
Technical field
The utility model belongs to building field, and in particular to a kind of cement grouting steel bar branch sleeve.
Background technology
In modern prefabricated concrete structure construction, the steel bar stress of prefabricated components is mainly connected using cement grout
Method connects.Cement grouting steel bar connector is connected with ribbing by branch sleeve, ungauged regions high strength cement mortar and sleeve both ends
Reinforcing bar is formed, and principle is：Ungauged regions high strength cement mortar is poured into branch sleeve, filling is full between sleeve and reinforcing bar
Gap after cement mortar hardening, is combined closely with the reinforcing bar with cross rib and with female sleeve lining, and by two steel
Muscle links together.
Existing branch sleeve generally sets concaveconvex structure in sleeve wall so that pours into the cement mortar inside branch sleeve
After mortar hardening, mechanical engagement can be formed with concaveconvex structure, increase the anchor force of sleeve and mortar after hardening, existing connector sleeve
Cylinder is to pass through（Punching-roller press）The circular pit that press carries out annular extrusion to sleeve and generates, but this circular pit knot
Structure has the following disadvantages：
1）The inner end of circular pit structure, due to stress concentration, can drop in this way its integral rigidity during rolling
It is low so that sleeve tube wall cracks, such branch sleeve below in use, be easily broken, bring great safety
Hidden danger；
2）During grouting, since gap is smaller between the end face of circular pit and reinforcing bar, slurry is caused to be not easy to flow
It is dynamic, it is unfavorable for slurry efficient, filling without dead angle in sleeve in this way.
3）Since the end face of circular pit is overall shrinkage（Bellows）, the practical stress that stretches is to be easily deformed, and causes to connect
It connects unstable.
Invention content
The purpose of this utility model provides a kind of cement grouting steel bar branch sleeve, it can solve existing circular pit structure
Inner end during rolling, due to stress concentration, the reduction of its integral rigidity can be made in this way so that the generation of sleeve tube wall is split
Line, such branch sleeve below in use, being easily broken, tube wall extension, the technology for bringing great security risk asks
Topic.
In order to realize above-mentioned technical characteristic, the technical solution adopted in the utility model is：
A kind of cement grouting steel bar branch sleeve, it includes branch sleeve, and branch sleeve both ends are equipped with reinforcing bar insert port,
Branch sleeve is equipped with inlet port and outlet port, is equipped on branch sleeve, and recess knot is equipped in the sleeve wall of branch sleeve
Structure.
Above-mentioned sunk structure is included in the recessed portion being recessed inwardly in sleeve wall, and the end of recessed portion is diameter of section by outer
Hold the shape being gradually reduced to inner end.
The end of above-mentioned sunk structure is hemisphere end face.
At least three sunk structure is equidistantly equipped in the circumferential direction of branch sleeve sleeve wall, multiple sunk structures are respectively positioned on
Same plane.
Multiple sunk structures in the same plane form sunk structure group, first-class in the axial direction of branch sleeve sleeve wall
Spacing is equipped at least 2 groups of sunk structure groups.
Above-mentioned sunk structure includes punching hole.
Using the above structure, by the sunk structure that is equipped in the sleeve wall of branch sleeve instead of of the prior art
Circular pit structure can solve the inner end of circular pit structure during rolling in this way, due to stress concentration, this
Sample can make the reduction of its integral rigidity so that sleeve tube wall cracks and tube wall extension.Branch sleeve is in use below in this way
In, solve the problems, such as due to be easily broken and tube wall extension bring great security risk；
Meanwhile it is included in the recessed portion being recessed inwardly in sleeve wall using sunk structure, the end of recessed portion is straight for section
The shape that diameter is gradually reduced from outer end to inner end, when can reduce sunk structure in this way to grouting, the influence of pulp flow, so as to very
It is good solve the problem of slurry be not easy to flow be unfavorable in this way slurry in sleeve efficiently, the filling without dead angle；
The end of sunk structure is used as the structure of hemisphere end face, such slurry can be smooth when by hemisphere end face
Flowing, when can further reduce sunk structure to grouting, the influence of pulp flow；
Using at least three sunk structure is equidistantly equipped in the circumferential direction of branch sleeve sleeve wall, multiple sunk structures are equal
It is generally aligned in the same plane, it is rationally distributed to sunk structure in this way so that sunk structure plays a role well；
Sunk structure group is formed using multiple sunk structures in the same plane, in the axial direction of branch sleeve sleeve wall
The upper structure for being equidistantly equipped at least 2 groups sunk structure groups, it is rationally distributed to sunk structure in this way so that sunk structure is good
It plays a role；
Include the structure of punching hole using sunk structure, sunk structure end can be made to generate prestressing force, improve branch sleeve
Integral rigidity.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the sectional view of Fig. 1.
Specific embodiment
As shown in Figure 1, a kind of cement grouting steel bar branch sleeve, it includes branch sleeve 1, and 1 both ends of branch sleeve are equipped with
Reinforcing bar insert port 2 is equipped with feed inlet 3 and discharge port 4 on branch sleeve 1, is equipped on branch sleeve 1, in branch sleeve 1
Sleeve wall is equipped with sunk structure, and sunk structure is included in the recessed portion being recessed inwardly in sleeve wall, and the end of recessed portion is cuts
The shape that face diameter is gradually reduced from outer end to inner end.
The end of the sunk structure is hemisphere end face.
At least three sunk structure is equidistantly equipped in the circumferential direction of 1 sleeve wall of branch sleeve, multiple sunk structures are respectively positioned on
Same plane.
Multiple sunk structures in the same plane form sunk structure group, in the axial direction of 1 sleeve wall of branch sleeve
Equidistantly it is equipped at least 2 groups of sunk structure groups.
The sunk structure includes punching hole 5.
Using the above structure, in use, ungauged regions high strength cement mortar is poured by the feed inlet 3 of branch sleeve 1
Branch sleeve 1, the full gap between sleeve and reinforcing bar of filling, after cement mortar hardening, with the reinforcing bar with cross rib and with interior
The sleeve lining of screw thread is combined closely, and by two bar connectings together；
Meanwhile the sunk structure by being equipped in the sleeve wall of branch sleeve is instead of circular pit of the prior art
Structure can solve the inner end of circular pit structure during punching press in this way, due to stress concentration, can make it in this way
Integral rigidity reduces so that sleeve tube wall cracks, such branch sleeve below in use, be easily broken, bring
The problem of great security risk.
Claims (4)
1. a kind of cement grouting steel bar branch sleeve, it includes branch sleeve（1）, branch sleeve（1）Both ends are inserted into equipped with reinforcing bar
Mouthful（2）, in branch sleeve（1）It is equipped with feed inlet（3）And discharge port（4）, in branch sleeve（1）It is equipped with, it is characterised in that：
In branch sleeve（1）Sleeve wall be equipped with sunk structure, sunk structure is included in the recessed portion being recessed inwardly in sleeve wall, recessed
The end of concave portion is the shape that diameter of section is gradually reduced from outer end to inner end；The end of sunk structure is hemisphere end face.
2. cement grouting steel bar branch sleeve according to claim 1, it is characterised in that：In branch sleeve（1）Sleeve wall
Circumferential direction on be equidistantly equipped at least three sunk structure, multiple sunk structures are respectively positioned on same plane.
3. cement grouting steel bar branch sleeve according to claim 2, it is characterised in that：In the same plane is multiple
Sunk structure forms sunk structure group, in branch sleeve（1）At least 2 groups of sunk structures are equidistantly equipped in the axial direction of sleeve wall
Group.
4. cement grouting steel bar branch sleeve according to claim 1, it is characterised in that：The sunk structure includes punching press
Hole（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721577488.XU CN207484836U (en) | 2017-11-23 | 2017-11-23 | A kind of cement grouting steel bar branch sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721577488.XU CN207484836U (en) | 2017-11-23 | 2017-11-23 | A kind of cement grouting steel bar branch sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207484836U true CN207484836U (en) | 2018-06-12 |
Family
ID=62475090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721577488.XU Active CN207484836U (en) | 2017-11-23 | 2017-11-23 | A kind of cement grouting steel bar branch sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207484836U (en) |
-
2017
- 2017-11-23 CN CN201721577488.XU patent/CN207484836U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103899043B (en) | Embedded pyramidal half grout sleeve | |
| CN202208996U (en) | Cement grout steel bar connector | |
| CN202176063U (en) | Cement grout rebar connecting joint | |
| CN204163287U (en) | Roll forming bar connecting grout sleeve | |
| CN103758291A (en) | Shearing reinforcing type semi-grouting sleeve | |
| CN103899044B (en) | Embedded pyramidal full grout sleeve | |
| CN107366389A (en) | A kind of steel pipe sleeve for being used for precast shear wall, post and preparation method thereof | |
| CN202391019U (en) | End part thickened grouting connector of steel bar | |
| CN105178516A (en) | Extruded semi-grouting reinforced sleeve with built-in casing, connective structure, and construction method | |
| CN104831869A (en) | Semi grouting bush | |
| CN105064625A (en) | Grout sleeve for reinforcement connection and reinforcement connecting method | |
| CN107524156A (en) | A kind of cup column foundation core anti-float method | |
| CN202131717U (en) | Composite joint made of twisted steel and used for cement grouting | |
| CN207484836U (en) | A kind of cement grouting steel bar branch sleeve | |
| CN205476091U (en) | Cast in situ concrete is reinforcing bar connecting sleeve that is in milk entirely for structure | |
| CN104533022A (en) | Reinforcement sleeve and template connecting structure | |
| CN207959723U (en) | A kind of separation preventing anchoring cartridge | |
| CN206987200U (en) | A kind of short grout sleeve of bar connecting | |
| CN204827500U (en) | Pinniform wedge body stock | |
| CN204081278U (en) | Split type steel bar sleeve is partly in the milk joint | |
| CN208965887U (en) | Grout sleeve and sleeve concrete-bar component | |
| CN207332123U (en) | Efficient energy-saving and emission-reducing high tensile reinforcement connection extruding grout sleeve and architectural prefab | |
| CN207392252U (en) | A kind of connection structure of pile body and cushion cap | |
| CN105133795A (en) | Variable-diameter half grouting sleeve and construction method thereof | |
| CN201730108U (en) | Tensioning and stressing reinforcement stress structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |