CN105298025A - Continuous spiral grouting sleeve - Google Patents
Continuous spiral grouting sleeve Download PDFInfo
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- CN105298025A CN105298025A CN201510762378.XA CN201510762378A CN105298025A CN 105298025 A CN105298025 A CN 105298025A CN 201510762378 A CN201510762378 A CN 201510762378A CN 105298025 A CN105298025 A CN 105298025A
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- sleeve
- sleeve body
- continuous helical
- helical shape
- grout
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Abstract
The invention discloses a continuous spiral grouting sleeve. A continuous spiral seamless steel pipe is manufactured, and a continuous spiral shear groove is formed; a steel pipe of a certain length is cut according to the engineering practice requirements, a grouting hole and a slurry outlet hole are formed in the positions of the same side of the two ends of the cut steel pipe respectively, a plurality of small pits are knocked at the tap joint position of the steel bar ends in the grouting sleeve, and a positioning disc is screwed in from one end to position the steel bar ends. The positioning disc is formed by pressing metal or plastics, an outer ring is provide with a groove matched with a shear groove boss inside the sleeve, and the front and the reverse side of the groove are provided with two non-through notches respectively so that a tool can be used to screw in the positioning disc. The continuous spiral grouting sleeve is simple in manufacturing process and low in cost, the continuous spiral shear groove can be matched with a rib on the surface of a steel bar, and the continuous spiral grouting sleeve is reliable in performance and can be widely applied to an assembly type concrete structure and have wide engineering application prospects.
Description
Technical field
The present invention relates to the grout sleeve that the docking of a kind of prefabrication and assembly construction concrete component steel bar stress slurry anchor connects, belong to construction engineering technical field.
Background technology
For meeting the anti-seismic performance requirement of prefabricated concrete structure, when the splicing of precast unit site operation is installed, between its prefabricated units, the method for attachment of main steel bar stress and connection reliability become the key determining novel prefabrication and assembly construction concrete structure engineering successful Application.The construction techniques of prefabrication and assembly construction is adopted effectively to economize on resources and the energy, improve material and realize the utilization rate in building energy conservation and structural performance, overcome construction plant and the ambient conditions restriction right to site operation, reduce the site operation quantity of labour force, reduce the harmful effect of building waste and Construction on Environment, improve building function and structural performance.
As everyone knows, the problem that bar connecting relates to is the key problem of prefabricated assembled concrete structure.Traditional connecting method for reinforcing bars has mechanical connection, is welded to connect, overlaps connection etc., and these connected modes more or less all exist some comprise reinforcing bar waste, consume energy high deficiency, therefore, there has been proposed a kind of novel mechanical joining methods in recent years, namely reinforcing bar grout sleeve connects.Reinforcing steel bar connecting sleeve tube has following technical characterstic: be 1. applicable to bear and draw, press the bar connecting in all kinds of structure reinforced concrete structures of bi-directional force to construct; 2. material-saving, energy-conservation, not by the restriction of reinforcing bar composition and kind; 3. can comprehensively connect; 4. can be prefabricated in advance, factory operation, does not take the duration, all-weather construction; 5. easy to operate, quick, speed of application is fast, can reduction of erection time greatly.But China is still in the elementary step for the research of reinforced bar sleeve.
Traditional grout sleeve has following deficiency: 1. regular length, arbitrarily can not change anchorage length according to the actual needs of engineering; 2. annular shearing groove has cutting to grouting material shape, easily damages; 3. do not have the part of shearing groove at sleeve two ends, sleeve to grouting material constraint not, easily extrudes destruction; 4. processed complex, costly; 5. smooth outer surface, cannot with outer material compact siro spinning technology.Thus occur many improved plan being carried out for conventional grout sleeve.
Chinese patent literature CN102116075A discloses a kind of Novel cement grouting Ribbed Bar jointing, its essence is a kind of novel half grout sleeve.Described branch sleeve is rolled section steel, profile is circular or polygonal tubular, the hole of branch sleeve is isometrical circular hole, employing milling method is made, and after cementation material has been poured in sleeve body inside, the protruding ring rib of branch sleeve inwall and sleeve nose end bulge loop play shearing resistance effect when steel bar stretching or compression, shearing resistance successful, but still more complicated processed by sleeve, processing time consuming is required great effort, unfavorable to reduction sleeve cost.
Chinese patent literature CN102587586A discloses a kind of Novel cement grouting screw thread composite reinforcing steel bar jointing, and its essence is also a kind of novel half grout sleeve.Mainly be with the difference of half grout sleeve mentioned in Chinese patent literature CN102116075A, by thread bush, threaded reinforcing bar is connected with sleeve part, make sleeve part that seamless steel pipe or steel pipe can be adopted directly to process, compared with adopting solid rod iron with Milling Process, decrease material consumption, improve the production efficiency of branch sleeve, reduce its cost of production, economic and technical norms are better.
Chinese patent literature CN204326248U discloses a kind of steel reinforcement abutting joints with the concavo-convex rib of spirality and connects grout sleeve, its essence is a kind of full grout sleeve.The outer wall of described seamless steel pipe has spiral groove, the inwall of seamless steel pipe has the spirality fin corresponding with spiral groove, the middle part of seamless steel pipe is connected with the alignment pin inserting seamless steel pipe inside.Its shortcoming wants to have the grout sleeve of regular length, can not intercept according to Practical Project demand.
Summary of the invention
The technical problem solved: for the deficiencies in the prior art, the present invention proposes a kind of continuous helical shape grout sleeve, solve processing difficulties, high cost disadvantage that in prior art, grout sleeve exists, under the prerequisite ensureing sleeve connection quality, simplify form of sleeve, reduce sleeve cost.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of continuous helical shape grout sleeve of the present invention, three kinds can be divided into: single-screw, double helix and many spirals from lines point, single-screw is on same cross section, only have a shearing geosynclinal convex platform, double helix has two symmetrical shearing geosynclinal convex platforms, and many spirals have multiple shearing geosynclinal convex platform on same cross section, above-mentioned three kinds of shearing grooves may correspond to the different Ribbed Bar of Different matching, make sleeve can better play its performance by sleeve with mating of reinforcing bar helicity.
A kind of continuous helical shape grout sleeve, comprises sleeve body, elastic rubber sealing ring, positioning disk.Described sleeve body is tubular structure, sleeve body is according to engineering site actual demand, one section that intercepts from continuous helical shape seamless steel pipe by random length, there is helical form shearing geosynclinal convex platform pipe shaft inside, grout hole and slurry outlet is had at the same lateral position near end, arrange elastic rubber sealing ring at pipe shaft two to seal, several small ruts are pounded out as anchor point in the position of pipe shaft steel bar end overlap joint, thus form corresponding small salient point in sleeve inner, and then the position of the positioning disk screwed in is determined.
When utilizing this device to connect two reinforcing bars, two reinforcing bars are inserted into sleeve body inside respectively from the rubber seal at two, the sealing part at its place seals by elastic rubber ring, by grouting in grout hole until sleeve inner is full of grouting material and overflows at slurry outlet, after sclerosis, be the grout sleeve of gained.By the continuous helical shape seamless steel pipe do not limit in length intercepting the steel pipe that a section meets engineering demand, through simple secondary operations such as punchings, produce the grout sleeve that the present invention proposes, manufacture craft is simple, and lightweight, the advantages such as cost is low are very clear.
As preferably, in the present invention, sleeve body is a continuous helical shape seamless steel pipe and one section that intercepts from it according to engineering site demand.
Beneficial effect:
A kind of continuous helical shape grout sleeve of the present invention, using low-alloy steel as basic cylinder material, makes a kind of seamless steel pipe with continuous helical, intercept arbitrarily a segment length according to actual demands of engineering again and carry out secondary operations, manufacture craft is simple, and material source is extensive, cheap;
A kind of continuous helical shape grout sleeve of the present invention is compared with conventional sleeve, cross section does not suddenly change, the area in each cross section is identical, and conventional sleeve is due to the existence of shearing groove, cutting is defined to grouting material, easily causes the destruction of grouting material, under the state that especially sleeve two ends do not have shearing groove, two ends grouting material is easily extruded destruction, and continuous helical shape just can guarantee that the grouting material at each position can be subject to the effect of shearing groove;
In a kind of continuous helical shape grout sleeve of the present invention, positioning disk can be good at the effect playing reinforcing bar location, effectively prevents the biased of reinforcing bar;
So it is extensive that a kind of continuous helical shape grout sleeve of the present invention has material source, construction technology is simple, dependable performance, can according to advantages such as Practical Project demand determination length, substantially improve the deficiencies such as existing sleeve cost is high, construction is complicated, can be widely used in prefabricated concrete structure, there is wide future in engineering applications.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the front view of positioning disk;
Fig. 3 is the lateral view of positioning disk;
In figure, Ribbed Bar 1, elastic rubber sealing ring 2, sleeve body 3, grouting material 4, slurry outlet 5, grout hole 6, anchor point 7, positioning disk 8, positioning disk runs through type groove 801, non-through type notch 802, boss 803, positioning disk groove 804.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As depicted in figs. 1 and 2, a kind of continuous helical shape grout sleeve, comprise sleeve body 3, described sleeve body 3 is continuous helical tubular structure, is to be formed through secondary operations such as random length intercepting, punching and fixed points by special continuous helical shape low-alloy steel seamless steel pipe.Sleeve body 3 two open ends place is equipped with elastic rubber sealing ring 2, directly can insert the hurricane band rib reinforcement 1 corresponding with steel pipe spiral.Described sleeve body 3 is digging out grout hole 6 and slurry outlet 5 with impact style at the scene near the same lateral position that elastic rubber sealing ring 2 is housed, several small ruts are dug out as anchor point 7 by scene hammer and chisel in the position adapting to engineering demand at sleeve body 3 sidewall, sleeve body 3 inside is made to form corresponding small salient point, continue to screw in small salient point position when positioning disk 8 screws in, by build-in after small salient point extruding in anchor point 7 position; As Fig. 2, shown in Fig. 3, positioning disk 8 external diameter is slightly less than sleeve diameter, the spiral type groove 804 adapted with internal diameter is made in outer ring, before installation elastic rubber sealing ring 2, pass through wherein one end screws in sleeve body 3, carry out the fixing of position at small salient point place, the shearing groove on sleeve body 3 in the shape of a spiral, matches with the rib of rebar surface; Positioning disk 8 is metal or plastics compacting, there is the groove matched with sleeve inner shearing geosynclinal convex platform outer ring, its tow sides have two notches do not run through 802 respectively to use instrument to be screwed in by positioning disk 8, positioning disk 8 there is the concave station 803 slightly larger than bar diameter reinforcing bar can effectively be located, prevent the biased of reinforcing bar.
When utilizing this device to connect two reinforcing bars 1, two reinforcing bars 1 are inserted into sleeve body 3 inside respectively from the elastic rubber sealing ring 2 at two, the sealing part at its place seals by elastic rubber sealing ring 2, until sleeve inner is full of grouting material 4 and overflows at slurry outlet 5, the grout sleeve of gained after sclerosis, is by grouting in grout hole 6.
Claims (7)
1. a continuous helical shape grout sleeve, it is characterized in that: comprise sleeve body (3), described sleeve body (3) is tubular structure band continuous helical shape shearing groove, sleeve body (3) two open ends place all arranges elastic rubber sealing ring (2), and is provided with grout hole (6) and slurry outlet (5) on the sidewall of the same lateral position of the end position near sleeve body (3); Dig out several pits as anchor point (7) in the position of sleeve body (3) certain adaptation engineering demand upper during use, positioning disk (8) is screwed in sleeve body along shearing groove inner, until be mounted in assigned address by anchor point (7).
2. a kind of continuous helical shape grout sleeve according to claim 1, it is characterized in that: its component continuous helical shape seamless steel pipe and positioning disk (8) make production in a large number by factory, and the random length of carrying out sleeve body (3) in building site intercepts, the digging out of perforate and anchor point (7).
3. a kind of continuous helical shape grout sleeve according to claim 1, it is characterized in that: described sleeve body (3) digs out several small ruts as anchor point (7) at any active position by workman's hammer and chisel according to engineering demand, several small salient points are formed accordingly in sleeve body inside, when positioning disk (8) is threaded to anchor point (7), small salient point extruding positioning disk (8) that sleeve body (3) is inner, makes it build-in in anchor point (7) position.
4. a kind of continuous helical shape grout sleeve according to claim 1, is characterized in that: described positioning disk (8) has the concave station slightly larger than bar diameter that reinforcing bar can effectively be located, and prevents the biased of reinforcing bar.
5. a kind of continuous helical shape grout sleeve according to claim 1, is characterized in that: sleeve body (3) is one section that intercepts from a continuous helical shape seamless steel pipe according to engineering site demand.
6. a kind of continuous helical shape grout sleeve according to claim 1, is characterized in that: described grout hole (6) and slurry outlet (5) are all arranged on the sidewall of the sleeve body (3) installing elastic rubber sealing ring (2).
7. a kind of continuous helical shape grout sleeve according to claim 1, is characterized in that: the shearing groove on described sleeve body (3) in the shape of a spiral, matches with the rib of rebar surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762378.XA CN105298025A (en) | 2015-11-10 | 2015-11-10 | Continuous spiral grouting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762378.XA CN105298025A (en) | 2015-11-10 | 2015-11-10 | Continuous spiral grouting sleeve |
Publications (1)
| Publication Number | Publication Date |
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| CN105298025A true CN105298025A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510762378.XA Pending CN105298025A (en) | 2015-11-10 | 2015-11-10 | Continuous spiral grouting sleeve |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735567A (en) * | 2016-04-12 | 2016-07-06 | 丁勇 | Magnetic positioning grouting sleeve |
| CN105756291A (en) * | 2016-04-26 | 2016-07-13 | 中民筑友科技投资有限公司 | Grouting sleeve and pre-fabricated part |
| CN105781029A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated piece |
| CN105781021A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated piece |
| CN105781020A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781028A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781025A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated piece |
| CN105781023A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781024A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781026A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781027A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105863170A (en) * | 2016-04-07 | 2016-08-17 | 中国十七冶集团有限公司 | Straight threaded sleeve device |
| CN105863171A (en) * | 2016-04-26 | 2016-08-17 | 中民筑友科技投资有限公司 | Grouting sleeve and fabricated part |
| CN105908901A (en) * | 2016-04-22 | 2016-08-31 | 南京理工大学 | Perforation positioning grouting sleeve |
| CN106801488A (en) * | 2017-03-23 | 2017-06-06 | 深圳市现代营造科技有限公司 | A kind of bar connecting grout sleeve |
| CN106812258A (en) * | 2016-12-29 | 2017-06-09 | 合肥工业大学 | A kind of full grout sleeves of GFRP |
| WO2018170980A1 (en) * | 2017-03-23 | 2018-09-27 | 深圳市现代营造科技有限公司 | Grout sleeve for steel bar connection |
| CN108868008A (en) * | 2018-08-19 | 2018-11-23 | 中国矿业大学 | Replaceable screw shell ductility reinforcing steel bar connecting device and installation and replacement method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5392582A (en) * | 1991-12-19 | 1995-02-28 | Splice Sleeve Japan, Ltd. | Mortar grouting type connector for reinforcing bars |
| CN201217847Y (en) * | 2008-06-05 | 2009-04-08 | 黑龙江宇辉新型建筑材料有限公司 | Plug-in type preformed hole grouting reinforcement lapping connection component |
| CN102561600A (en) * | 2011-12-27 | 2012-07-11 | 上海利物宝建筑科技有限公司 | Steel bar splicing sleeve |
| CN203393905U (en) * | 2013-07-09 | 2014-01-15 | 东南大学 | Grouting-deformed steel tube sleeve in butt joint with steel bar slurry anchor |
| CN104947855A (en) * | 2015-04-24 | 2015-09-30 | 上海市隧道工程轨道交通设计研究院 | Reinforcing steel bar connector |
-
2015
- 2015-11-10 CN CN201510762378.XA patent/CN105298025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5392582A (en) * | 1991-12-19 | 1995-02-28 | Splice Sleeve Japan, Ltd. | Mortar grouting type connector for reinforcing bars |
| CN201217847Y (en) * | 2008-06-05 | 2009-04-08 | 黑龙江宇辉新型建筑材料有限公司 | Plug-in type preformed hole grouting reinforcement lapping connection component |
| CN102561600A (en) * | 2011-12-27 | 2012-07-11 | 上海利物宝建筑科技有限公司 | Steel bar splicing sleeve |
| CN203393905U (en) * | 2013-07-09 | 2014-01-15 | 东南大学 | Grouting-deformed steel tube sleeve in butt joint with steel bar slurry anchor |
| CN104947855A (en) * | 2015-04-24 | 2015-09-30 | 上海市隧道工程轨道交通设计研究院 | Reinforcing steel bar connector |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863170A (en) * | 2016-04-07 | 2016-08-17 | 中国十七冶集团有限公司 | Straight threaded sleeve device |
| CN105735567A (en) * | 2016-04-12 | 2016-07-06 | 丁勇 | Magnetic positioning grouting sleeve |
| CN105908901B (en) * | 2016-04-22 | 2018-08-21 | 南京理工大学 | A kind of perforation positioning grout sleeve |
| CN105908901A (en) * | 2016-04-22 | 2016-08-31 | 南京理工大学 | Perforation positioning grouting sleeve |
| CN105781027A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781021A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated piece |
| CN105781025A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated piece |
| CN105781023A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781024A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781026A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781020A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105781028A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated member |
| CN105863171A (en) * | 2016-04-26 | 2016-08-17 | 中民筑友科技投资有限公司 | Grouting sleeve and fabricated part |
| CN105781029A (en) * | 2016-04-26 | 2016-07-20 | 中民筑友科技投资有限公司 | Grouting sleeve and prefabricated piece |
| CN105756291A (en) * | 2016-04-26 | 2016-07-13 | 中民筑友科技投资有限公司 | Grouting sleeve and pre-fabricated part |
| CN106812258A (en) * | 2016-12-29 | 2017-06-09 | 合肥工业大学 | A kind of full grout sleeves of GFRP |
| CN106812258B (en) * | 2016-12-29 | 2019-05-14 | 合肥工业大学 | A kind of full grout sleeve of GFRP |
| CN106801488A (en) * | 2017-03-23 | 2017-06-06 | 深圳市现代营造科技有限公司 | A kind of bar connecting grout sleeve |
| WO2018170980A1 (en) * | 2017-03-23 | 2018-09-27 | 深圳市现代营造科技有限公司 | Grout sleeve for steel bar connection |
| CN108868008A (en) * | 2018-08-19 | 2018-11-23 | 中国矿业大学 | Replaceable screw shell ductility reinforcing steel bar connecting device and installation and replacement method |
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Application publication date: 20160203 |
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