CN203795726U - Grout sleeve for connecting deformed steel bars - Google Patents
Grout sleeve for connecting deformed steel bars Download PDFInfo
- Publication number
- CN203795726U CN203795726U CN201420121017.8U CN201420121017U CN203795726U CN 203795726 U CN203795726 U CN 203795726U CN 201420121017 U CN201420121017 U CN 201420121017U CN 203795726 U CN203795726 U CN 203795726U
- Authority
- CN
- China
- Prior art keywords
- grout sleeve
- sleeve body
- screw
- grout
- thread
- 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.)
- Expired - Fee Related
Links
- 239000011440 grout Substances 0.000 title claims abstract description 111
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 230000003014 reinforcing effect Effects 0.000 claims description 31
- 238000000641 cold extrusion Methods 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000010080 roll forging Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 21
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 3
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010327 methods by industry Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Revetment (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a grout sleeve for connecting deformed steel bars. The grout sleeve comprises a grout sleeve body with a cavity and a threaded section arranged at one end of the grout sleeve body; the other end of the grout sleeve body is a steel bar insertion section; a grouting hole is formed in the steel bar insertion section of the grout sleeve body; a vent hole is formed in a position, at one side of the threaded section, on the grout sleeve body; the grout sleeve body and the threaded section are arranged separately; the threaded section is connected with the grout sleeve body in a hydraulic buckling manner; a plurality of projections are arranged on the inner wall of the grout sleeve body; a plurality of grooves corresponding to the projections are formed in the outer wall of the grout sleeve body. The grout sleeve is characterized in that the grout sleeve body and the threaded section are manufactured separately and assembled in a hydraulic buckling manner very rapidly and conveniently, the grout sleeve body is cold-extruded, the projections on the inner wall of the grout sleeve body are capable of well cementing with a grouting material, and the grooves formed in the outer walls of the grout sleeve body are cemented with concrete to further improve the cementation property of the grout sleeve in vertical and transverse connection of concrete members.
Description
Technical field
The utility model type relates to a kind of housing industrialization project that is applied to, the cement prefabricated component horizontal and vertical screw-thread steel prefabricated with cement components is connected, adopt half grouting, the mode of half-thread connects, the feature of this grout sleeve maximum is to have adopted Split type hydraulic to withhold processing, the processing method of sleeve and processing thought are reformed, and this grout sleeve is at material, and the aspects such as processing cost are far superior to existing grout sleeve.
Background technology
Building trade is a traditional industry, because our country mainly adopts cast-in-place construction technology at present, no matter traditional reinforcing bar connected mode, as connected modes such as overlap joint, welding, all can not meet the demand that builing industry develops rapidly from quality of connection, efficiency or operability.Especially after 2010, lasting deterioration along with Domestic Environment PM2.5, the quality of life that affects us that haze weather is serious and healthy, the improvement of environment is become to a serious people's livelihood problem, due to a lot of airborne dust and the building wastes of meeting product in the process of the construction in building, so our country proposes housing industrialization, advocate green building, energy-conserving and environment-protective building, under such overall background, technology built by the traditional screw-thread steel making and link technique has to reform.
In recent years, add the relevant expert's of some scientific research institutions of China continuous effort, China's mechanical connection technique of reinforcement is developed rapidly.Mechanical connection has experienced sleeve cold extrusion, taper thread, and upsetting straight is until the current different developing stage such as rolling straight thread, and technology is constantly mature and stable, and cost also constantly reduces.But these technology all can solve the connection of concrete component the inside screw-thread steel, for concrete component and concrete connection, be to have no idea to solve, for the connection of concrete component and concrete component, can only adopt grout sleeve to be connected with high strength cement base grouting material.
At present on the market, reinforcing bar connection between cement components and member has all adopted grout sleeve, reinforcing bar is inserted into the two ends of grout sleeve, and one end adopts and is threaded, one end adopts grouting process in addition, by grout hole, in sleeve, inject high strength contraction-free cement grout material, after filling with, after grouting material solidifies, one end is threaded connection, the reinforcing bar of one end transmits stress by grouting material and sleeve in addition, thereby realizes two connections between reinforcing bar, realizes the reliable connection of member and member.
Existing grout sleeve comprises ductile iron casting on the market at present, medium carbon steel pole machining or adopt steel pipe forging molding, they have common feature, be exactly threaded portion and sleeve grouting part be one, very difficult in the process of manufacturing, lower to the utilization rate of material
Especially on the market the sleeve of ductile iron and medium carbon steel pole machining, the external surface of sleeve is smooth, can not form good engagement with concrete, protruding processing technology on grout sleeve inwall is complicated, the grouting part of grout sleeve is very dark, difficulty of processing is large, manufacture efficiency is low, rough estimates, the grout sleeve of medium carbon steel pole machinery machine-shaping only has 50% left and right to the utilization rate of material, ductile iron can only adopt foundry casting technique in casting process, so the inside of portioned product can inevitable pore and the burning into sand occurring, can affect product strength, with regard to casting technique, increasing of environment PM2.5 had to direct impact.
For there being people to propose steel pipe forging molding, add upper groove and projection, but owing to being one-shot forming, difficulty of processing is very large.Substantially be difficult to realize, so do not see that on market such product is used widely.
Utility model content
The utility model object is in order to solve the existing defect of grout sleeve in prior art, provide a kind of by the concept of split type sleeve, by threaded portion and sleeve body separate machined, then the technology that adopts hydraulic pressure to withhold well connects, many experiments by us proves, withhold the intensity of part considerably beyond the intensity of screw-thread steel, more than all reaching 650Mpa.Cold extrusion is provided with a plurality of projections on the inwall of grout sleeve body, the outer wall of grout sleeve body is provided with a plurality of grooves corresponding with projection, projection and groove part are corresponding one by one, must be corresponding one by one, for annular shape, the groove of external surface improves the caking property of grout sleeve in concrete component, the change of technique, make to process very convenient, under manufacturing cost, fall.
To achieve these goals, the technical solution adopted in the utility model is:
A screw-thread steel connection grout sleeve, comprises that the other end of described grout sleeve body is reinforcing bar inserting paragraph with the grout sleeve body of cavity and the thread segment that is arranged on this grout sleeve body one end; Reinforcing bar inserting paragraph at described grout sleeve body is provided with grout hole, a side that is positioned at described thread segment on grout sleeve body is provided with steam vent, described grout sleeve body and thread segment split arrange, and the mode that thread segment is withheld by hydraulic pressure is connected with grout sleeve body.
Above-mentioned a kind of screw-thread steel connection grout sleeve, described thread segment is the bullet that is threaded hole.
Above-mentioned a kind of screw-thread steel connection grout sleeve, the inwall of described grout sleeve body is provided with a plurality of projections, the outer wall of grout sleeve body is provided with the corresponding groove of a plurality of and described projection, and described projection and the groove of answering are in contrast processed by cold extrusion shaped or forging roll heating roll forging.
Above-mentioned a kind of screw-thread steel connection grout sleeve, described projection and groove are all circular arc type and extend along the side face of described grout sleeve body.
Above-mentioned a kind of screw-thread steel connection grout sleeve, the quantity of described projection and groove is respectively 4-8.
Above-mentioned a kind of screw-thread steel connection grout sleeve, the arc radius of described groove is 4-20mm.
Above-mentioned a kind of screw-thread steel connection grout sleeve, described protruding peak is 2-5mm to the distance of described grout sleeve inner body wall, the depth dimensions of described groove is 2-5mm.
Above-mentioned a kind of screw-thread steel connection grout sleeve, described grout hole and steam vent are by punch forming.
Above-mentioned a kind of screw-thread steel connection grout sleeve, described grout sleeve body is by steel pipe machine-shaping.
The beneficial effects of the utility model are: this grout sleeve has adopted new concept, by thread segment and grout sleeve body parts processing, the technique that adopts hydraulic pressure to withhold is assembled, quick and convenience very, this grout sleeve body adopts cold extrusion processing, projection in grout sleeve inner body wall can be well and grouting material bonding, groove and concrete conglutination on grout sleeve body outer wall, more improved grout sleeve at concrete component the cohesive in vertical and horizontal connection.Thread segment and grout sleeve body are that split part and the mode that adopts hydraulic pressure to withhold are connected, and when damaging appears in thread segment, only need to change thread segment, can not cause whole grout sleeve to scrap, and assemble and change very convenient, have saved material.Grout hole and steam vent are by punching press or drilling machine moulding, simple and efficient, and product material has adopted the steel pipe processing of customization, saves material cost, and product is zero-emission in process engineering, can not pollute air.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is connection diagram of the present utility model
Fig. 3 is the end schematic diagram of withholding of the present utility model.
The specific embodiment
For making that architectural feature of the present utility model and the effect reached are had and further understand and be familiar with, in order to preferred embodiment and accompanying drawing, coordinate detailed explanation, be described as follows:
As shown in Figure 1, Figure 2 and Figure 3, a kind of screw-thread steel connection grout sleeve, comprises that the other end of grout sleeve body 1 is reinforcing bar inserting paragraph 3 with the grout sleeve body 1 of cavity and the thread segment 2 that is arranged on this grout sleeve body 1 one end, reinforcing bar inserting paragraph at grout sleeve body 1 is provided with grout hole 4, a side that is positioned at thread segment on grout sleeve body 1 is provided with steam vent 5, as improvement of the present utility model, the inwall of grout sleeve body 1 is provided with a plurality of protruding 6, the outer wall of grout sleeve body 1 is provided with a plurality of grooves 7 corresponding with projection 6, projection 6 and the groove 7 of answering in contrast pass through cold extrusion shaped, projection 6 and groove 7 are all circular arc type and extend along the side face of grout sleeve body 1, for the cohesive that guarantees that member connects, the quantity of projection 6 and groove 7 is respectively 4-8, the arc radius of groove 7 is 4-20mm, projection 6 peaks are 2-5mm to the distance of grout sleeve body 1 inwall, the depth dimensions of groove 7 is 2-5mm.Projection in grout sleeve inner body wall can be well and grouting material bonding, groove and concrete conglutination on grout sleeve body outer wall, improved the cohesive of grout sleeve in the vertical connection of concrete component more.
As the utility model, further improve, thread segment 2 is that the mode that split part and employing are withheld is connected with grout sleeve body 1, when damaging appears in thread segment 2, only need to change thread segment 2, can not cause whole grout sleeve to scrap, assemble and change very convenient, save material, grout hole 4 and steam vent 5 are by punch forming, simple and efficient, product material has adopted the steel pipe processing of customization, saves material cost, product is zero-emission in process engineering, can not pollute air.
Reinforcing bar is installed in after thread segment 2 and inserting paragraph 3, reinforcing bar and grout sleeve body 1 are generally born pulling force and pressure in concrete, reinforcing bar 8 in sleeve body 1 transmits stress as medium to reinforcing bar 9 by the grouting material being pressed into, when reinforcing bar 8 and reinforcing bar 9 are being subject under the effect of pulling force, between reinforcing bar 8 and grouting material, produce the frictional force contrary with reinforcing bar 8 stress directions, on protruding face on grout sleeve body 1 inwall, produce one towards the skew force of reinforcing bar 9, this skew force is by forming with the reinforcing bar 9 contrary longitudinal pulling force that meets with stresses and horizontal extruding force, this longitudinal pulling force is resisted mutually with the pulling force that reinforcing bar 9 bears, laterally extruding force has increased the parcel power between grouting material and reinforcing bar 9, thereby increased the frictional force of grouting material to reinforcing bar 9, thereby reinforcing bar 8 and reinforcing bar 9 are connected firmly, yet, when no matter reinforcing bar 8 is subject to tensile force or extruding force with reinforcing bar 9, in order to guarantee the fastness of its connection, it is stable that sleeve body 1 must keep in concrete, the grout sleeve of tradition smooth in appearance can not guarantee sleeve body 1 when under tension or pressure and holding position is stable, and when reinforcing bar 8 and reinforcing bar 9 are subject to tensile force or extruding force, on protruding face on grout sleeve body 1 inwall, can produce a skew force towards reinforcing bar 9, the trapezoidal projection of tradition can not guarantee that skew force is even, stable, each stress point of the arc-shaped convex that the utility model adopts is even, stable, and experimental data shows, in the situation that use the grouting material of same quality, the limit skew force that the limit skew force that arc-shaped convex is born bears than trapezoidal projection is large.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and manual, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (9)
1. a screw-thread steel connection grout sleeve, comprises that the other end of described grout sleeve body is reinforcing bar inserting paragraph with the grout sleeve body of cavity and the thread segment that is arranged on this grout sleeve body one end; Reinforcing bar inserting paragraph at described grout sleeve body is provided with grout hole, a side that is positioned at described thread segment on grout sleeve body is provided with steam vent, it is characterized in that: described grout sleeve body and thread segment split arrange, and the mode that thread segment is withheld by hydraulic pressure is connected with grout sleeve body.
2. a kind of screw-thread steel connection grout sleeve according to claim 1, is characterized in that, described thread segment is the bullet that is threaded hole.
3. a kind of screw-thread steel connection grout sleeve according to claim 1, it is characterized in that, the inwall of described grout sleeve body is provided with a plurality of projections, the outer wall of grout sleeve body is provided with the corresponding groove of a plurality of and described projection, and described projection and the groove of answering are in contrast processed by cold extrusion shaped or forging roll heating roll forging.
4. a kind of screw-thread steel connection grout sleeve according to claim 3, is characterized in that, described projection and groove are all circular arc type and extend along the side face of described grout sleeve body.
5. a kind of screw-thread steel connection grout sleeve according to claim 3, is characterized in that, the quantity of described projection and groove is respectively 4-8.
6. a kind of screw-thread steel connection grout sleeve according to claim 4, is characterized in that, the arc radius of described groove is 4-20mm.
7. a kind of screw-thread steel connection grout sleeve according to claim 4, is characterized in that, described protruding peak is 2-5mm to the distance of described grout sleeve inner body wall, and the depth dimensions of described groove is 2-5mm.
8. a kind of screw-thread steel connection grout sleeve according to claim 1, is characterized in that, described grout hole and steam vent are by punch forming.
9. according to a kind of screw-thread steel connection grout sleeve described in any one in claim 1 to 8, it is characterized in that, described grout sleeve body is by steel pipe machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121017.8U CN203795726U (en) | 2014-03-18 | 2014-03-18 | Grout sleeve for connecting deformed steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121017.8U CN203795726U (en) | 2014-03-18 | 2014-03-18 | Grout sleeve for connecting deformed steel bars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795726U true CN203795726U (en) | 2014-08-27 |
Family
ID=51377953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121017.8U Expired - Fee Related CN203795726U (en) | 2014-03-18 | 2014-03-18 | Grout sleeve for connecting deformed steel bars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795726U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533018A (en) * | 2014-12-24 | 2015-04-22 | 南京工业大学 | Prestressed FRP rib tensioning and anchoring device |
| CN104563397A (en) * | 2014-12-24 | 2015-04-29 | 中国建筑股份有限公司 | Extruded half-grouted steel bar sleeve, connection structure and construction method thereof |
| CN104929318A (en) * | 2014-03-18 | 2015-09-23 | 宁波市镇海路石建筑科技有限公司 | Grouting sleeve for connecting deformed steel bars |
| CN105178516A (en) * | 2015-09-28 | 2015-12-23 | 中国建筑股份有限公司 | Extruded semi-grouting reinforced sleeve with built-in casing, connective structure, and construction method |
| CN105672581A (en) * | 2016-03-25 | 2016-06-15 | 山东明达建筑科技有限公司 | Fully-grouted sleeve for rebar connection |
| CN106088482A (en) * | 2016-07-29 | 2016-11-09 | 上海建工二建集团有限公司 | A kind of fixed grout sleeve and using method |
| CN106088483A (en) * | 2016-07-29 | 2016-11-09 | 上海建工二建集团有限公司 | A kind of grout sleeve and using method |
| CN108457171A (en) * | 2017-12-25 | 2018-08-28 | 上海公路投资建设发展有限公司 | Steel grouting bellows and its production method for precast assembly bridge pier |
| CN108643458A (en) * | 2018-06-07 | 2018-10-12 | 德睿盛兴（大连）装配式建筑科技有限公司 | A kind of grout sleeve |
-
2014
- 2014-03-18 CN CN201420121017.8U patent/CN203795726U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929318A (en) * | 2014-03-18 | 2015-09-23 | 宁波市镇海路石建筑科技有限公司 | Grouting sleeve for connecting deformed steel bars |
| CN104533018A (en) * | 2014-12-24 | 2015-04-22 | 南京工业大学 | Prestressed FRP rib tensioning and anchoring device |
| CN104563397A (en) * | 2014-12-24 | 2015-04-29 | 中国建筑股份有限公司 | Extruded half-grouted steel bar sleeve, connection structure and construction method thereof |
| CN105178516A (en) * | 2015-09-28 | 2015-12-23 | 中国建筑股份有限公司 | Extruded semi-grouting reinforced sleeve with built-in casing, connective structure, and construction method |
| CN105672581A (en) * | 2016-03-25 | 2016-06-15 | 山东明达建筑科技有限公司 | Fully-grouted sleeve for rebar connection |
| CN106088482A (en) * | 2016-07-29 | 2016-11-09 | 上海建工二建集团有限公司 | A kind of fixed grout sleeve and using method |
| CN106088483A (en) * | 2016-07-29 | 2016-11-09 | 上海建工二建集团有限公司 | A kind of grout sleeve and using method |
| CN108457171A (en) * | 2017-12-25 | 2018-08-28 | 上海公路投资建设发展有限公司 | Steel grouting bellows and its production method for precast assembly bridge pier |
| CN108643458A (en) * | 2018-06-07 | 2018-10-12 | 德睿盛兴（大连）装配式建筑科技有限公司 | A kind of grout sleeve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203795726U (en) | Grout sleeve for connecting deformed steel bars | |
| CN104929318A (en) | Grouting sleeve for connecting deformed steel bars | |
| CN103758292B (en) | The full grout sleeve of a kind of shearing enhancement mode | |
| CN203113627U (en) | Nodular cast iron grout sleeve for connecting longitudinal steel bars | |
| CN103899043B (en) | Embedded pyramidal half grout sleeve | |
| CN204163287U (en) | Roll forming bar connecting grout sleeve | |
| CN103758291A (en) | Shearing reinforcing type semi-grouting sleeve | |
| CN204112606U (en) | The branch sleeve of steel concrete supporting | |
| CN204960140U (en) | Splice of stamping forming straight thread grout sleeve | |
| CN204590414U (en) | A kind of modified steel core concrete column | |
| CN214302537U (en) | Shear force wall exempts from to tear open template | |
| CN205364197U (en) | Connecting device is used in production of no end plate precast pile | |
| CN201671321U (en) | Scaffold joint | |
| CN209705507U (en) | A kind of corrosion-resistant heavy caliber four-way pipe | |
| CN204126171U (en) | One starting sheet cell integral type built-in fitting | |
| CN210797605U (en) | Open caisson mould inner die capable of quickly demoulding | |
| CN206662059U (en) | A kind of steel box-girder manhole ribbed stiffener one-shot forming mold | |
| CN203316718U (en) | Double-hole pressing die | |
| CN204590423U (en) | A kind of bar connecting grout sleeve with U-lag | |
| CN204324754U (en) | Tower machine standard knot Novel connection female connector | |
| CN203269407U (en) | Tower crane standard knot | |
| CN209775023U (en) | Multipurpose wallboard vertical mould forming machine end mould | |
| CN203240174U (en) | Integrated H-shaped four-way connecting pipe | |
| CN215106724U (en) | PC concrete stair | |
| CN201627307U (en) | Construction reinforcing steel bar joint technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |