CN105507500A - Steel bar-sleeve connecting device and manufacture method thereof - Google Patents
Steel bar-sleeve connecting device and manufacture method thereof Download PDFInfo
- Publication number
- CN105507500A CN105507500A CN201511027060.3A CN201511027060A CN105507500A CN 105507500 A CN105507500 A CN 105507500A CN 201511027060 A CN201511027060 A CN 201511027060A CN 105507500 A CN105507500 A CN 105507500A
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- sleeve
- small
- section
- reinforcing bar
- large aperture
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a steel bar-sleeve connecting device and a manufacture method thereof. The steel bar-sleeve connecting device comprises a sleeve, a first steel bar and a second steel bar; a special-aperture through hole is formed in the sleeve and provided with a small-aperture section and a large-aperture section; the inner wall of the small-aperture section is provided with an internal thread, and the first steel bar and the small-aperture section are connected through the thread to form a mechanical connection joint; the second steel bar is inserted into the large-aperture section, an annular cavity is formed between the second steel bar and the large-aperture section, the inner wall of the large-aperture section is provided with an internal thread, and potting materials are injected into the annular cavity. The steel-bar sleeve connecting device has the advantages that the steel-bar sleeve connecting device is simple in process and easy to produce, consumption of raw materials for the sleeve is lowered significantly, production cost of the sleeve is lowered highly, ad production efficiency is improved; the requirements for connection of the steel bars identical or different in diameter in practical engineering can be met, the adopted epoxy adhesive for embedded steel bars has the characteristics of room temperature curing, high strength, high adhesive strength, good durability and the like, time for connection is shortened greatly, and construction progress is accelerated.
Description
Technical field
The present invention relates to a kind of straight screw sleeve connection device and manufacture method thereof.
Background technology
Industrialization of construction industry represents the developing direction of Building Trade in China, and fabricated construction can realize modernization and control and full-automatic production in the process of building, and has good facilitation to the development of China's industrialization of construction industry.Resolving bar connecting problem is the key solving fabricated construction integrity issues, on the switching performance basis ensureing joint excellence, study more reasonably joint design and sleeve production technology, the cost of steel bar connector is reduced, speed of application is improved, the popularization of industrialization of construction industry is had great importance.Traditional bar connecting adopts overlap joint to connect, be welded to connect or the mechanical connection such as compression sleeve method but the connection of reinforcing bar must be completed before fluid concrete, be not suitable for the assembly construction method of precast concrete.
In modern prefabricated concrete structure building operations, steel bar connector mainly adopts cement grouting steel bar joint.A kind of be made up of branch sleeve, two Ribbed Bar and ungauged regions high-strength cement mortar, its principle is: the butt end of two connecting reinforcements by branch sleeve and be full of the sclerosis in its internal clearance ungauged regions high-strength cement mortar in conjunction with formation connector.
The feature of traditional cement grouting steel bar joint is: branch sleeve adopts casting technique manufacture to form, and profile is olive-shaped or ampuliform tubular, and the inwall of sleeve cementation section is provided with multiple protruding ring rib.It has following shortcoming: one is that the appearance and size of branch sleeve is large, and the consumption of material is too large, causes high cost; Two is that the time that used grouting material reaches needed for working strength is longer, is unfavorable for the rapid construction of assembled architecture; Three be casting technique relative complex some, it is limited to produce the producer of grout sleeve, limits the large-scale application of grouting link technique.
There is the novel grouting joint that a kind of joint that is in the milk from conventional cement is different in recent years, this joint have employed one end grouting and connects, the structure that threaded one end connects, branch sleeve adopts milling round steel or polygonal shaped steel machining to form, and as CN104929319A, its advantage is that branch sleeve material property is good, joints size is little, branch sleeve machining accuracy is high, and joint performance is good, and integrated cost is low.But the weak point that this joint exists is exactly: one, the concaveconvex structure of sleeve grouting chamber internal projection ring rib will adopt cutting technology to make, and the threaded interior walls of sleeve and protruding ring rib inwall, need different producing process, different manufacturing process, machining cost is higher, and material consumption is comparatively large, for the branch sleeve that bar diameter is larger, this deficiency is especially aobvious outstanding, the cost of sleeve is as wanted about 100 yuan, and cost is excessive, is unfavorable for extensively using in engineering reality; Its two, the contact area of the cooperation grouting material of protruding ring rib is less, and the two bonding strength has the possibility improved further; Its three, protruding ring rib can limit grouting material and inject, and affect grouting material mobility, on the one hand, reduces injection rate, on the other hand, grouting material can be caused not to be filled with full cavity or bubble at protruding ring rib root, reduction bonding strength.
Summary of the invention
The invention provides a kind of straight screw sleeve connection device and manufacture method thereof, which overcome the deficiency existing for straight screw sleeve connection device in background technology.
One of the present invention's technical scheme adopted solving its technical problem is:
A kind of straight screw sleeve connection device, comprises sleeve, the first reinforcing bar and the second reinforcing bar; Form different aperture through hole in this sleeve, this reducing through hole has small-bore section and large aperture section; This small-bore section inwall establishes internal thread, and this first reinforcing bar is threaded connection into mechanical connecting joint with small-bore section; This second reinforcing bar inserts in large aperture section, and the second reinforcing bar and large aperture is intersegmental has annular chamber, this large aperture section inwall establishes internal thread, and in this annular chamber, note charges sizing material.
Among one embodiment: the linkage section be threaded with small-bore section of this first reinforcing bar is for shell rib roll forming straight thread connector.
Among one embodiment: this sleeve is provided with the material hole that two run through large aperture section, these two material holes are arranged along different aperture through hole axially spaced-apart and are located at the both ends of large aperture section respectively.
Among one embodiment: this encapsulating material adopts epoxy type anchoring adhesive or cementitious material.
Among one embodiment: 45# carbon steel material selected by this sleeve, this sleeve outer wall is cylindrical.
Among one embodiment: the small-bore section axial length of this sleeve is not less than twice first bar diameter, and large aperture section axial length is not less than five times of second bar diameter, and large aperture section axial length is greater than small-bore section axial length.
The present invention solves two of the technical scheme adopted of its technical problem:
The manufacture method of above-mentioned straight screw sleeve connection device, comprising:
Step 1, preparation sleeve, the first reinforcing bar and the second reinforcing bar; Form different aperture through hole in this sleeve, this reducing through hole has small-bore section and large aperture section, and this small-bore section inwall establishes internal thread, and this large aperture section inwall establishes internal thread;
Step 2, is threaded connection into mechanical connecting joint by the first reinforcing bar with small-bore section;
Step 3, inserts large aperture section by the second reinforcing bar, and the second reinforcing bar and large aperture is intersegmental has annular chamber, in annular chamber, note charges sizing material.
The technical program is compared with background technology, and its tool has the following advantages:
1, the large aperture section inwall of sleeve establishes screw thread, one, result is simple, and technique is simple, convenient processing, be easy to machining, small-bore section inwall and large aperture section inwall can adopt same production technology to cut and form, and machine tool can realize machine, are conducive to batch production, make this sleeve energy large-scale application, practical requirement; Its two, cutting material is less, materials economize, cost is low, environmental protection; Its three, the contact area of screw thread and encapsulating material is large, and sleeve and encapsulating material form compact siro spinning technology, considerably increase the anchoring bond intensity of the two, form compact siro spinning technology between encapsulating material and Ribbed Bar, reach reliable bond-anchorage strength; Its four, if screw thread, when encapsulating material is injected formed vortex, accelerate injection rate, implantation homogeneity, also can avoid occurring bubble or cavity, increase bonding strength.
2, straight screw sleeve connection device, can improve the reliability of joint, constructability, cost-saving, solves that traditional jointing cost is high, the problems such as complicated are produced in construction.
3, straight screw sleeve connection device, not only technique is simply easy to produce, and the raw material use amount of sleeve significantly reduces, and greatly reduces the cost of production of sleeve, improves production efficiency; The bar connecting demand of same diameter or different-diameter in Practical Project can be met, and the epoxy type anchoring adhesive adopted, there is cold curing, intensity is high, bonding force is strong, the feature such as good endurance, greatly shorten the connect hours, accelerating construction progress.
4, the small-bore section axial length of sleeve is not less than twice first bar diameter, large aperture section axial length is not less than five times of second bar diameter, large aperture section axial length is greater than small-bore section axial length, the bonding strength of joint is improved greatly, ensure that the reliability of joint, constructability, cost-saving.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the structural profile schematic diagram of straight screw sleeve connection device of the present invention.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the B-B cross-sectional schematic of Fig. 1.
Fig. 4 is the C-C cross-sectional schematic of Fig. 1.
Detailed description of the invention
Please refer to Fig. 1 to Fig. 4, a kind of straight screw sleeve connection device, comprise sleeve 8, first reinforcing bar 1 and the second reinforcing bar 7.
This sleeve 8 outer wall is cylinder cylindrical shape, and outer wall is smooth.Form different aperture through hole in this sleeve 8, this reducing through hole becomes ladder turn round through hole and have small-bore section 2 and large aperture section 4, and small-bore section 2 diameter is less than large aperture section 4 diameter.This small-bore section 2 inwall establishes the first internal thread 9, and this large aperture section 4 inwall establishes the second internal thread 10.Wherein: small-bore section 2 axial length of this sleeve 8 is not less than twice first reinforcing bar 1 diameter, and large aperture section 4 axial length is not less than five times of second reinforcing bar 7 diameter, and large aperture section 4 axial length is greater than small-bore section 2 axial length.This sleeve 8 selects the machine of 45# Fine Steel Casting iron material to be formed, and is easy to machining.
External screw thread is established in one end of this first reinforcing bar 1, and the external screw thread of this first reinforcing bar 1 and the first internal thread 9 of small-bore section 2 are screwed together, and this first reinforcing bar 1 is threaded connection into mechanical connecting joint with small-bore section 2, so that the two is mechanically coupled together.Wherein: the linkage section be threaded with small-bore section of this first reinforcing bar is for shell rib roll forming straight thread connector.
This second reinforcing bar 7 (Ribbed Bar) inserts in large aperture section 4, and has annular chamber between the second reinforcing bar 7 and large aperture section 4, and note charges sizing material 5 in this annular chamber, and this encapsulating material 5 adopts epoxy type anchoring adhesive or the strong cementitious material of other anchoring bond power.This has room temperature fast-curing in conjunction with encapsulating material, intensity is high, bonding force is strong, good endurance, injecting glue are simple to operate, without the need to features such as special tool, easy construction, use safety and clean environment firendlies, and then greatly can shorten the connect hours, accelerate speed of application, be conducive to the rapid construction of fabricated construction.
This sleeve 8 outer wall is arranged with the material hole 3,6 that two run through large aperture section, these two material holes 3,6 are arranged along different aperture through hole axially spaced-apart and are located at the both ends of large aperture section 4 respectively, namely, the end near small-bore section of large aperture section 4 is located in a material hole 3, and the end away from small-bore section of large aperture section 4 is located in another material hole 3.These two material holes form the plup inlet of encapsulating material and the discharge opening of encapsulating material respectively, inject encapsulating material with logical material path, ensure that encapsulating material fills in annular chamber, and when solidifying, affixed sleeve 8 and the second reinforcing bar 7 form a connector both combining.Wherein: as straight screw sleeve connection device horizontal arrangement, then any one material hole all can be plup inlet, and another material hole is discharge opening, and the material hole 3 as the end near small-bore section is plup inlet, and the material hole 6 away from the end of small-bore section is discharge opening; As straight screw sleeve connection device vertically or being in tilted layout of intersecting horizontal face, then the material hole being positioned at below is plup inlet, and the material hole being positioned at top is discharge opening.This material hole 3,6 can be unthreaded hole or screwed hole.
Among the present embodiment: because large aperture section 4 inwall of sleeve 8 establishes screw thread, therefore following technique effect can be produced: one, result is simple, and technique is simple, convenient processing, be easy to machining, small-bore section 2 inwall and large aperture section 4 inwall adopt same production technology to cut and form, and machine tool can realize machine, are conducive to batch production, make this sleeve energy large-scale application, practical requirement; Its two, cutting material is less, materials economize, cost is low, environmental protection; Its three, the contact area of screw thread and encapsulating material is large, and sleeve and encapsulating material form compact siro spinning technology, considerably increase the anchoring bond intensity of the two, form compact siro spinning technology between encapsulating material and Ribbed Bar, reach reliable bond-anchorage strength; Its four, if screw thread, when encapsulating material is injected formed vortex, accelerate injection rate, implantation homogeneity, also can avoid occurring bubble or cavity, increase bonding strength.
The straight screw sleeve connection device connectivity of the present embodiment can good, reliable in quality, connect hours short, for the steel bar connector of fabricated construction, joint quality reaches the regulation of I grade of joint in JGJ107-2010 " mechanical connection technique of reinforcement code ", and above-mentioned sleeve cost is only at about 30 yuan, cost is low, good in economic efficiency.
The manufacture method of above-mentioned straight screw sleeve connection device, comprising:
Step 1, preparation sleeve, the first reinforcing bar and the second reinforcing bar; Form different aperture through hole in this sleeve, this reducing through hole has small-bore section and large aperture section, and this small-bore section inwall establishes internal thread, and this large aperture section inwall establishes internal thread;
Step 2, is threaded connection into mechanical connecting joint by the first reinforcing bar with small-bore section 2;
Step 3, inserts large aperture section by the second reinforcing bar, and the second reinforcing bar and large aperture is intersegmental has annular chamber, in annular chamber, note charges sizing material.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (7)
1. a straight screw sleeve connection device, is characterized in that: comprise sleeve, the first reinforcing bar and the second reinforcing bar; Form different aperture through hole in this sleeve, this reducing through hole has small-bore section and large aperture section; This small-bore section inwall establishes internal thread, and this first reinforcing bar is threaded connection into mechanical connecting joint with small-bore section; This second reinforcing bar inserts in large aperture section, and the second reinforcing bar and large aperture is intersegmental has annular chamber, this large aperture section inwall establishes internal thread, and in this annular chamber, note charges sizing material.
2. a kind of straight screw sleeve connection device according to claim 1, is characterized in that: the linkage section be threaded with small-bore section of this first reinforcing bar is for shell rib roll forming straight thread connector.
3. a kind of straight screw sleeve connection device according to claim 1, is characterized in that: this sleeve outer wall is arranged with the material hole that two run through large aperture section, and these two material holes are arranged along different aperture through hole axially spaced-apart and are located at the both ends of large aperture section respectively.
4. a kind of straight screw sleeve connection device according to claim 1, is characterized in that: this encapsulating material adopts epoxy type anchoring adhesive or cementitious material.
5. a kind of straight screw sleeve connection device according to claim 1, it is characterized in that: 45# carbon steel material selected by this sleeve, this sleeve outer wall is cylindrical.
6. a kind of straight screw sleeve connection device according to claim 1, it is characterized in that: the small-bore section axial length of this sleeve is not less than twice first bar diameter, large aperture section axial length is not less than five times of second bar diameter, and large aperture section axial length is greater than small-bore section axial length.
7., according to the manufacture method of a kind of straight screw sleeve connection device in claim 1 to 6, it is characterized in that: comprising:
Step 1, preparation sleeve, the first reinforcing bar and the second reinforcing bar; Form different aperture through hole in this sleeve, this reducing through hole has small-bore section and large aperture section, and this small-bore section inwall establishes internal thread, and this large aperture section inwall establishes internal thread;
Step 2, is threaded connection into mechanical connecting joint by the first reinforcing bar with small-bore section;
Step 3, inserts large aperture section by the second reinforcing bar, and the second reinforcing bar and large aperture is intersegmental has annular chamber, in annular chamber, note charges sizing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027060.3A CN105507500A (en) | 2015-12-31 | 2015-12-31 | Steel bar-sleeve connecting device and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027060.3A CN105507500A (en) | 2015-12-31 | 2015-12-31 | Steel bar-sleeve connecting device and manufacture method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105507500A true CN105507500A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511027060.3A Pending CN105507500A (en) | 2015-12-31 | 2015-12-31 | Steel bar-sleeve connecting device and manufacture method thereof |
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| CN (1) | CN105507500A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079065A (en) * | 2016-07-28 | 2016-11-09 | 安徽省建筑科学研究设计院 | A kind of attachment structure of glass fiber-reinforced polymer and reinforcing bar and attaching method thereof |
| CN112814283A (en) * | 2020-12-24 | 2021-05-18 | 中交第三航务工程局有限公司江苏分公司 | Glue pouring connection structure for steel bar sleeve and construction method |
| CN115419291A (en) * | 2022-09-02 | 2022-12-02 | 中铁十一局集团有限公司 | Secondary structure bar planting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08319696A (en) * | 1995-05-24 | 1996-12-03 | Sumitomo Metal Ind Ltd | Screw joint for steel bar and joint fitting |
| JPH0967900A (en) * | 1995-08-31 | 1997-03-11 | Kajima Corp | Joint of reinforcements and connection method for reinforcements |
| CN202208996U (en) * | 2011-01-14 | 2012-05-02 | 中冶建筑研究总院有限公司 | Cement grout steel bar connector |
| CN202324365U (en) * | 2011-10-28 | 2012-07-11 | 张吉华 | Steel bar connecting sleeve of fabricated constructional member of reinforced concrete member |
| CN103216044A (en) * | 2012-01-20 | 2013-07-24 | 中冶建筑研究总院有限公司 | Moisture permeation and water proofing Cement grouting steel bar connecting structure of precast concrete unit |
| CN203729498U (en) * | 2014-01-23 | 2014-07-23 | 河北联合大学 | Vertical reinforcement-steel sleeve but joint connection structure of assembled wall |
| CN104314240A (en) * | 2014-11-23 | 2015-01-28 | 沈阳建筑大学 | Grouting anchor type rebar connection sleeve and manufacturing method thereof |
| CN205476092U (en) * | 2015-12-31 | 2016-08-17 | 华侨大学 | Reinforcing bar sleeve connecting device |
-
2015
- 2015-12-31 CN CN201511027060.3A patent/CN105507500A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08319696A (en) * | 1995-05-24 | 1996-12-03 | Sumitomo Metal Ind Ltd | Screw joint for steel bar and joint fitting |
| JPH0967900A (en) * | 1995-08-31 | 1997-03-11 | Kajima Corp | Joint of reinforcements and connection method for reinforcements |
| CN202208996U (en) * | 2011-01-14 | 2012-05-02 | 中冶建筑研究总院有限公司 | Cement grout steel bar connector |
| CN202324365U (en) * | 2011-10-28 | 2012-07-11 | 张吉华 | Steel bar connecting sleeve of fabricated constructional member of reinforced concrete member |
| CN103216044A (en) * | 2012-01-20 | 2013-07-24 | 中冶建筑研究总院有限公司 | Moisture permeation and water proofing Cement grouting steel bar connecting structure of precast concrete unit |
| CN203729498U (en) * | 2014-01-23 | 2014-07-23 | 河北联合大学 | Vertical reinforcement-steel sleeve but joint connection structure of assembled wall |
| CN104314240A (en) * | 2014-11-23 | 2015-01-28 | 沈阳建筑大学 | Grouting anchor type rebar connection sleeve and manufacturing method thereof |
| CN205476092U (en) * | 2015-12-31 | 2016-08-17 | 华侨大学 | Reinforcing bar sleeve connecting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106079065A (en) * | 2016-07-28 | 2016-11-09 | 安徽省建筑科学研究设计院 | A kind of attachment structure of glass fiber-reinforced polymer and reinforcing bar and attaching method thereof |
| CN112814283A (en) * | 2020-12-24 | 2021-05-18 | 中交第三航务工程局有限公司江苏分公司 | Glue pouring connection structure for steel bar sleeve and construction method |
| CN115419291A (en) * | 2022-09-02 | 2022-12-02 | 中铁十一局集团有限公司 | Secondary structure bar planting device |
| CN115419291B (en) * | 2022-09-02 | 2024-02-06 | 中铁十一局集团有限公司 | Secondary structure bar planting device |
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Application publication date: 20160420 |