CN110185200A - A kind of building loading load-bearing steel reinforcement abutting joints device - Google Patents
A kind of building loading load-bearing steel reinforcement abutting joints device Download PDFInfo
- Publication number
- CN110185200A CN110185200A CN201910478872.1A CN201910478872A CN110185200A CN 110185200 A CN110185200 A CN 110185200A CN 201910478872 A CN201910478872 A CN 201910478872A CN 110185200 A CN110185200 A CN 110185200A
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- China
- Prior art keywords
- reinforcing bar
- ing
- shift
- ring
- steel reinforcement
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- 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.)
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Classifications
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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
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
Abstract
The present invention relates to construction materials to dock field, specially a kind of building loading load-bearing steel reinforcement abutting joints device, a kind of building loading load-bearing steel reinforcement abutting joints device, including reinforcing bar, docking facilities, docking facilities are fixedly connected on reinforcing bar, shift(ing) ring is socketed with outside docking facilities, docking facilities internal activity is equipped with lower lock block, by lower lock block top be circular arc setting with the horizontal part that opens up above circular arc enable when shift(ing) ring is moved up by outside it be acclivitous circular arc setting and the circular arc setting of equally distributed anti-slip protrusion and inner upper end being inclined outwardly thereon enable shift(ing) ring it is more laborsaving enable lower lock block move down fixed steel bars pass through simultaneously horizontal part after lower lock block pushes with the contact area increase of shift(ing) ring so that shift(ing) ring will not glide, there are male part and inner fovea part by what activity on lower lock block top was installed again The idler wheel being staggered is mutually chimeric for the spaced fixing groove of indent on shift(ing) ring, enables shift(ing) ring further laborsaving.
Description
Technical field
The present invention relates to construction materials to dock field, specially a kind of building loading load-bearing steel reinforcement abutting joints device.
Background technique
During existing structure of reinforced concrete, the common connection type of reinforcing bar generally has binding to prick, weld
Connect with machinery set, wherein because reinforcing steel bar machinery sleeve connection connector can also improve steel in the case where not destroying the toughness of reinforcing bar
The bonding strength of muscle, therefore mechanical sleeves connection is relatively more common.
But which needs manpower scene torque wrench to apply to turn round while existing mechanical sleeves attended operation is cumbersome
Square is unable to satisfy now quickly high speed construction so that efficiency is also low while reinforcing bar and time-consuming and laborious big mechanical connection sleeve
Demand.
Summary of the invention
A kind of building loading load-bearing steel reinforcement abutting joints device, the device can rapidly and efficiently save reinforcing bar by docking facilities
The docking of power, it is low to solve the construction efficiency in existing reinforcing steel bar machinery docking sleeve, take the big problem of energy.
A kind of building loading load-bearing steel reinforcement abutting joints device, including reinforcing bar, docking facilities, are fixedly connected on the reinforcing bar pair
Connection device is socketed with shift(ing) ring outside the docking facilities, and the docking facilities internal activity is equipped with lower lock block.
Preferably, one end of the lower lock block towards reinforcing bar is fixedly connected with connecting rod, the connecting rod is towards steel
One end movable sleeve of muscle is connected to lock chamber, and lock chamber is to open setting towards one end of reinforcing bar.
Preferably, one end of the connecting rod towards reinforcing bar is fixedly connected with fixed spring, and fixed spring be from
One end far from reinforcing bar to one end close to reinforcing bar gradually becomes smaller setting.
Preferably, one end of the fixed spring towards reinforcing bar is fixedly connected with fixed block, and upper end of fixing block is
Lower end is arranged as right angle setting in circular arc.
Preferably, the docking facilities inner bottom is fixedly installed with arc plate, the two sides activity installation of the arc plate
There is mobile bar, the side of upper end towards the reinforcing bar of the mobile bar is fixedly connected with steady arm, and the steady arm lower end is fixed to be connected
It is connected to fitting bar, the fitting bar is that easily-deformable material is arranged and outside offers serrated slot.
Preferably, the one end of the lower lock block far from reinforcing bar is that circular arc is arranged and is movably installed with idler wheel, the rolling
Staggeredly there are male part and inner fovea part on wheel.
Preferably, be that acclivitous circular arc is arranged outside the shift(ing) ring, the shift(ing) ring inner upper end be to
The circular arc of outer incline is arranged and offers thereon fixing groove, and the fixing groove is indent and interval setting.
Preferably, the docking facilities upper and lower ends are identical setting, the lower lock block is evenly distributed on reinforcing bar
Circle-shaped periphery.
Compared with prior art the invention has the following advantages:
1. being that the horizontal part opened up above circular arc setting and circular arc to move up when shift(ing) ring by lower lock block top
When can it is external by it be that acclivitous circular arc is arranged and equally distributed anti-slip protrusion and inner upper end lean outward thereon
Oblique circular arc setting enable shift(ing) ring it is more laborsaving enable lower lock block to move down fixed steel bars while passing through horizontal part to exist
Increase with the contact area of shift(ing) ring so that shift(ing) ring will not glide, then pass through activity peace on lower lock block top after lower lock block pushing
Dress has male part and the idler wheel that inner fovea part is staggered mutually chimeric for the spaced fixing groove of indent on shift(ing) ring, so that
Shift(ing) ring can further the mobile lower lock block in labour-saving while make shift(ing) ring not rotate further improve when pushing to push
The efficiency of fixed steel bars.
2. by the arc plate of docking facilities inner bottom, enables and push down arc plate when reinforcing bar enters inside docking facilities and make
It flattens extends mobile so that it is easily-deformable for triggering mobile bar rotation fitting bar is driven to contact with reinforcing bar by being bonded bar to two sides
Material enables it to the shape for becoming to be bonded rebar surface and tentatively fix to reinforcing bar, while being provided with by mobile bar upper end
Make after contact with reinforcing bar that original position can not be being returned to the inclined-plane of triggering block fitting, then the serrated slot by being opened up on fitting bar and
The support rod of upper end to further increase the fixation of reinforcing bar.
It is set 3. gradually gradually becoming smaller setting from left to right by fixed spring and lower end right angle being arranged with upper end of fixing block circular arc
Set, enable reinforcing bar more convenient entrance while, protrude lock chamber and reinforcing bar when shift(ing) ring moves down lower lock block
It after portion's fitting, then is displaced outwardly fixed block in the effect of fixed spring and is bonded with recess in reinforcing bar, pass through lower end of fixing block
Right angle is arranged so that can make reinforcing bar that can not retreat to fixed effect by the corner angle contact rebar surface at right angle after the completion of fitting
It further increases, then passes through the setting of fixed spring so that occupied space is smaller so that fixed block is bonded after the compression of fixed spring
After can not move and can further improve fixed effect.
Detailed description of the invention
Fig. 1 is the whole main view of the present invention；
Fig. 2 is internal perspective view of the present invention；
Fig. 3 is enlarged drawing at A in Fig. 2 of the present invention；
Fig. 4 is enlarged drawing at B in Fig. 2 of the present invention；
Fig. 5 is lower lock block perspective view of the present invention；
Fig. 6 is idler wheel perspective view of the present invention；
Fig. 7 is shift(ing) ring perspective view of the present invention；
Fig. 8 is overall top view of the present invention.
In figure: 1- reinforcing bar, 2- docking facilities, 3- lower lock block, 301- horizontal part, 4- shift(ing) ring, 401- fixing groove, 5- are anti-skidding
Convex block, 6- connecting rod, 7- arc plate, 8- lock chamber, 801- fixed spring, 802- fixed block, 9- mobile bar, 10- triggering block, 11-
Support rod, 12- fitting bar, 13- runner, 1301- male part, recess in 1302-.
Specific embodiment
Please refer to Fig. 1 to 8, a kind of building loading load-bearing steel reinforcement abutting joints device planar structure schematic diagram and stereochemical structure are shown
It is intended to.
A kind of building loading load-bearing steel reinforcement abutting joints device, including reinforcing bar 1, docking facilities 2, are fixedly connected on reinforcing bar 1 pair
Connection device 2 is socketed with shift(ing) ring 4 outside docking facilities 2, and 2 internal activity of docking facilities is equipped with lower lock block 3.
In specific implementation, one end of lower lock block 3 towards reinforcing bar 1 is fixedly connected with connecting rod 6, and connecting rod 6 is towards reinforcing bar 1
One end movable sleeve be connected to lock chamber 8, and lock chamber 8 towards one end of reinforcing bar be open setting so that when shift(ing) ring 4 makes to push
Block 3 enables lock chamber 8 and the part of 1 evagination of reinforcing bar are bonded after moving down, to improve fixed effect.
In specific implementation, one end of connecting rod 6 towards reinforcing bar is fixedly connected with fixed spring 801, and fixed spring 8 is
Setting is gradually become smaller from one end far from reinforcing bar 1 to close to one end of reinforcing bar 1, so that occupied space is more after the compression of spring 801
It is small so that fixed block 802 can not move after being bonded and can further improve fixed effect.
In specific implementation, one end of fixed spring 8 towards reinforcing bar 1 is fixedly connected with fixed block 802, and fixed block 801
Upper end is that circular arc setting lower end is right angle setting, enable the more convenient entrance of reinforcing bar 1 while can after the completion of fitting energy
Corner angle contact 1 surface of reinforcing bar by right angle retreat reinforcing bar 1 can not to which fixed effect further increases.
In specific implementation, 2 inner bottom of docking facilities is fixedly installed with arc plate 7, and the two sides of arc plate 7 are movably installed with shifting
Lever 9, the side of upper end towards the reinforcing bar 1 of mobile bar 9 are fixedly connected with steady arm 11, and 11 lower end of steady arm is fixedly connected with patch
Bar 12 is closed, fitting bar 11 is that easily-deformable material is arranged and outside offers serrated slot, so that when reinforcing bar 1 enters in docking facilities 2
Arc plate 7 can be pushed down when portion makes it flatten to extend to two sides and mobile drive fitting bar 12 to connect with reinforcing bar 1 to trigger the rotation of mobile bar 9
Touching is that the shape that easily-deformable material enables it to become to be bonded rebar surface tentatively fixes reinforcing bar 1 by fitting bar 12,
Original can not be being returned to after by the inclined-plane that 9 upper end of mobile bar is provided with triggering block 10 is bonded it being contacted with reinforcing bar 1 simultaneously
Position, then to further increase the fixation of reinforcing bar by the support rod 11 of the serrated slot and upper end that open up on fitting bar 9.
In specific implementation, the one end of lower lock block 3 far from reinforcing bar 1 is that circular arc is arranged and is movably installed with idler wheel 13, idler wheel
Staggeredly have male part 1301 and inner fovea part 1302 on 13, enable shift(ing) ring 4 it is more laborsaving make lower lock block 3 to moving down
It is dynamic, it can be connect with shift(ing) ring 4 after the pushing of lower lock block 3 by horizontal part 301 while achieving the effect that efficient fixed steel bars 1
Contacting surface product increases so that shift(ing) ring 4 will not glide.
It in specific implementation, is acclivitous circular arc setting outside shift(ing) ring 4,4 inner upper end of shift(ing) ring is to lean outward
Oblique circular arc setting and offer fixing groove 401 thereon, fixing groove 401 is indent and interval setting, by external setting with
Thereon equally distributed anti-slip protrusion 5 enable mobile shift(ing) ring 4 when more stress, then pass through 401 energy of inside fixation slot
Be bonded with idler wheel 13 can be more labor-saving can be prevented while allowing lower lock block 3 to move down push when will not be rotated into
The efficiency of the raising fixed steel bars 1 of one step.
In specific implementation, 2 upper and lower ends of docking facilities are identical setting, and lower lock block 3 is evenly distributed on the circumference of reinforcing bar 1
Shape periphery, enables docking facilities 2 efficiently to consolidate the mating operation for realizing two reinforcing bars.
A kind of working principle for building loading load-bearing steel reinforcement abutting joints device of the present invention is as follows.
Firstly, can be pushed down when reinforcing bar 1 is protruded into 2 inside of docking facilities arc plate 7 make its flatten to two sides extend it is mobile to
It is that easily-deformable material enables it to become to paste that the triggering rotation of mobile bar 9, which drives fitting bar 12 to be contacted with reinforcing bar 1 through fitting bar 12,
The shape for closing 1 surface of reinforcing bar carries out reinforcing bar tentatively fixed, while being provided with by 9 upper end of mobile bar and being bonded with triggering block 10
Inclined-plane makes that original position, then the support of serrated slot and upper end by opening up on fitting bar 12 can not be being returned to after contacting with reinforcing bar 1
Bar 11 further increases the fixation to reinforcing bar 1, and the preliminary fixed descendant of completion only needs to hold shift(ing) ring 4 and moves up, and leads to
The horizontal part 301 that 3 top of lower lock block is crossed to open up above circular arc setting and circular arc enables to be passed through when shift(ing) ring 4 moves up
Its outside circular arc of equally distributed anti-slip protrusion 5 and inner upper end being inclined outwardly for the setting of acclivitous circular arc and thereon
Be arranged enable shift(ing) ring 4 more laborsaving enable lower lock block 3 move down fixed steel bars 1 and meanwhile by horizontal part 301 under
Increase with the contact area of shift(ing) ring 4 so that shift(ing) ring 4 will not glide, then pass through activity on 3 top of lower lock block after the pushing of briquetting 3
Installation has on 1301 idler wheels 134 being staggered with inner fovea part 1302 of evagination and shift(ing) ring for the spaced fixation of indent
401 phase of slot is chimeric, and shift(ing) ring 4 is enabled to revolve shift(ing) ring 4 will not when pushing
Turn the further efficiency for improving and pushing fixed steel bars 1, then by fixed spring 801 gradually gradually become smaller from left to right setting with
802 upper end circular arc of fixed block is arranged lower end right angle and is arranged, enable the more convenient entrance of reinforcing bar 1 while, when shift(ing) ring 4 makes
Lower lock block 3 moves down after being bonded lock chamber 8 with 1 protrusion of reinforcing bar, then makes fixed block 802 in the effect of fixed spring 801
It is displaced outwardly and is bonded with recess in reinforcing bar, is arranged by the right angle of 802 lower end of fixed block so that can be by right angle after the completion of fitting
Corner angle contact 1 surface of reinforcing bar retreat reinforcing bar 1 can not to which fixed effect further increases, then pass through fixed spring 801
It is arranged so that occupied space is smaller so that fixed block 802 can not move energy further after being bonded after the compression of fixed spring 801
Raising fixed effect.
Claims (8)
1. a kind of building loading load-bearing steel reinforcement abutting joints device, including reinforcing bar (1), docking facilities (2), it is characterised in that: the steel
It is fixedly connected on muscle (1) docking facilities (2), is socketed with shift(ing) ring (4), the docking facilities outside the docking facilities (2)
(2) internal activity is equipped with lower lock block (3).
2. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 1, it is characterised in that: the lower lock block
(3) it is fixedly connected with connecting rod (6) towards one end of reinforcing bar (1), one end movable sleeve of the connecting rod (6) towards reinforcing bar (1)
It is connected to lock chamber (8), and lock chamber (8) is to open setting towards one end of reinforcing bar.
3. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 2, it is characterised in that: the connecting rod
(6) be fixedly connected with fixed spring (801) towards one end of reinforcing bar, and fixed spring (8) be from far from reinforcing bar (1) one end extremely
One end close to reinforcing bar (1) gradually becomes smaller setting.
4. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 3, it is characterised in that: the fixed spring
(8) it is fixedly connected with fixed block (802) towards one end of reinforcing bar (1), and it is straight that fixed block (801) upper end, which is circular arc setting lower end,
Angle setting.
5. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 1, it is characterised in that: the docking facilities
(2) inner bottom is fixedly installed with arc plate (7), and the two sides of the arc plate (7) are movably installed with mobile bar (9), the mobile bar
(9) side of upper end towards reinforcing bar (1) is fixedly connected with steady arm (11), and steady arm (11) lower end is fixedly connected with patch
It closes bar (12), the fitting bar (11) is that easily-deformable material is arranged and outside offers serrated slot.
6. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 1, it is characterised in that: the lower lock block
(3) one end far from reinforcing bar (1) is that circular arc is arranged and is movably installed with idler wheel (13), is staggeredly had on the idler wheel (13) outer
Protrusion (1301) and inner fovea part (1302).
7. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 1, it is characterised in that: the shift(ing) ring
(4) external is that acclivitous circular arc is arranged, and shift(ing) ring (4) inner upper end is the circular arc setting being inclined outwardly and opens thereon
Equipped with fixing groove (401), the fixing groove (401) is indent and interval setting.
8. a kind of building loading load-bearing steel reinforcement abutting joints device according to claim 1, it is characterised in that: the docking facilities
(2) upper and lower ends are identical setting, and the lower lock block (3) is evenly distributed on the circle-shaped periphery of reinforcing bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910478872.1A CN110185200B (en) | 2019-06-03 | 2019-06-03 | Bearing reinforcing steel bar butt joint device for building loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910478872.1A CN110185200B (en) | 2019-06-03 | 2019-06-03 | Bearing reinforcing steel bar butt joint device for building loading |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110185200A true CN110185200A (en) | 2019-08-30 |
| CN110185200B CN110185200B (en) | 2021-06-22 |
Family
ID=67720023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910478872.1A Active CN110185200B (en) | 2019-06-03 | 2019-06-03 | Bearing reinforcing steel bar butt joint device for building loading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185200B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058571A (en) * | 2019-12-03 | 2020-04-24 | 中交第四公路工程局有限公司 | Fabricated grouting sleeve with steel bar positioning guide groove and manufacturing method |
| CN112127550A (en) * | 2020-09-22 | 2020-12-25 | 湖南汇渠建筑科技有限公司 | Assembly type building component steel bar connecting sleeve assembly |
| CN112459282A (en) * | 2020-11-11 | 2021-03-09 | 杨玮军 | Stable form assembled building convenient to connect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011159049A2 (en) * | 2010-06-15 | 2011-12-22 | Kim Yongkeun | Rebar coupler using an oblong rotating wedge |
| CN208202355U (en) * | 2018-05-24 | 2018-12-07 | 宜昌华康建设有限公司 | A kind of Ribbed Bar connector for building |
| CN109113269A (en) * | 2018-10-24 | 2019-01-01 | 毛岩青 | A kind of screw-thread steel intelligent connector |
| CN109424122A (en) * | 2017-08-30 | 2019-03-05 | 金华功彩安防科技有限公司 | A kind of reinforcing bar quick-acting connector |
| CN109577562A (en) * | 2019-01-24 | 2019-04-05 | 富实特建材科技(广东)有限公司 | Direct insertion type connector for Ribbed Bar |
-
2019
- 2019-06-03 CN CN201910478872.1A patent/CN110185200B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011159049A2 (en) * | 2010-06-15 | 2011-12-22 | Kim Yongkeun | Rebar coupler using an oblong rotating wedge |
| CN109424122A (en) * | 2017-08-30 | 2019-03-05 | 金华功彩安防科技有限公司 | A kind of reinforcing bar quick-acting connector |
| CN208202355U (en) * | 2018-05-24 | 2018-12-07 | 宜昌华康建设有限公司 | A kind of Ribbed Bar connector for building |
| CN109113269A (en) * | 2018-10-24 | 2019-01-01 | 毛岩青 | A kind of screw-thread steel intelligent connector |
| CN109577562A (en) * | 2019-01-24 | 2019-04-05 | 富实特建材科技(广东)有限公司 | Direct insertion type connector for Ribbed Bar |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058571A (en) * | 2019-12-03 | 2020-04-24 | 中交第四公路工程局有限公司 | Fabricated grouting sleeve with steel bar positioning guide groove and manufacturing method |
| CN112127550A (en) * | 2020-09-22 | 2020-12-25 | 湖南汇渠建筑科技有限公司 | Assembly type building component steel bar connecting sleeve assembly |
| CN112127550B (en) * | 2020-09-22 | 2022-01-21 | 湖南汇渠建筑科技有限公司 | Assembly type building component steel bar connecting sleeve assembly |
| CN112459282A (en) * | 2020-11-11 | 2021-03-09 | 杨玮军 | Stable form assembled building convenient to connect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110185200B (en) | 2021-06-22 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20210607 Address after: No. 11, Juqing Road, Xidu Town, Hengyang County, Hengyang City, Hunan Province Applicant after: Hunan Yuxiang Construction Engineering Co.,Ltd. Address before: 646000 No.3, unit 2, building 2, No.2, Huguo South Road, Naxi District, Luzhou City, Sichuan Province Applicant before: Huang Zhiqin |
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