CN111236539A - Steel bar connecting device - Google Patents
Steel bar connecting device Download PDFInfo
- Publication number
- CN111236539A CN111236539A CN202010161810.0A CN202010161810A CN111236539A CN 111236539 A CN111236539 A CN 111236539A CN 202010161810 A CN202010161810 A CN 202010161810A CN 111236539 A CN111236539 A CN 111236539A
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- China
- Prior art keywords
- steel bar
- cavity
- reinforcing bar
- clamp
- hoop
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- Pending
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 105
- 239000010959 steel Substances 0.000 title claims abstract description 105
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 42
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 48
- 239000002184 metal Substances 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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Classifications
-
- 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
- E04C5/165—Coaxial connection by means of sleeves
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a steel bar connecting device, and belongs to the technical field of steel bar connection. The steel bar fixing and connecting device comprises a steel bar connecting sleeve, wherein a left port of the steel bar connecting sleeve is a steel bar inserting hole, a steel bar fixing and connecting cavity is sequentially communicated with the right side of the steel bar inserting hole from left to right, a pressure spring accommodating cavity and an internal threaded hole are formed, and the steel bar fixing and connecting cavity is a conical cavity with a left port smaller than a right port; at the tapered cavity intracavity installation reinforcing bar clamp subassembly, hold the intracavity at the pressure spring and be equipped with reinforcing bar clamp subassembly pressure spring, including threaded hole internal screw thread screwed connection threaded connection spare, reinforcing bar clamp subassembly includes a set of clamp connection piece, the inner wall circumference in each clamp connection piece ring reinforcing bar fixed connection chamber is arranged, the inside wall of each clamp connection piece is for being located the arc surface on same axial lead, and be equipped with reinforcing bar interlock tooth on its circular cambered surface, the lateral wall of clamp connection piece has the tapered surface with the inner wall tapering looks adaptation in reinforcing bar fixed connection chamber. The steel bar connecting device has the characteristics of high steel bar connecting strength, strong adaptability, convenience in operation and the like.
Description
Technical Field
The invention relates to the technical field of steel bar connection.
Background
The connection mode of the steel bars mainly comprises three modes of binding and lapping, mechanical connection and welding.
Binding and lapping: the method for fixing overlapped portion of reinforcing bar joint by binding not only needs longer overlapped portion to result in waste of material, but also is not suitable for selecting same position for different overlap position of reinforcing bar, so that the binding mode is mainly characterized by that it uses more steel material, and its force-transferring property is poor
Welding connection: the steel bar welding is connected with several methods of flash butt welding, electric arc welding, electroslag pressure welding, gas pressure welding, embedded part steel bar submerged arc pressure welding and the like. The main disadvantages are that special construction equipment, materials and electric power are needed, the energy consumption is maximum, the requirements on personnel are strict, certain requirements are required for construction environment, and the method can not be adopted at any time and any place: for example, electroslag pressure welding can only be used for connecting vertical steel bars, flash butt welding and gas pressure welding can only be used for welding and connecting limited-length steel bars in a processing field, the quality cannot be completely guaranteed, unqualified products are easy to produce, and more wastes are generated.
Mechanically connecting: the method adopts straight threads, tapered threads, sleeve extrusion and other modes for connection, and is rarely adopted at present because of unstable connection quality of the sleeve overstock and the tapered threads, insufficient stress of the joint and the like, and the most commonly used straight thread joint is taken as an analysis comparison object. The straight thread mainly has the straight threaded connection of thick cutting, needs to cut the reinforcing bar tip circle of contact, then the mound is thick, and the thread is cut again, because structural organization changes, and does not pass through tempering, can produce stress concentration, and the ductility descends, is unfavorable to improving the joint atress. The extrusion rib is rolled and pressed to form straight thread connection, so that the connection is stable, but the pressing tolerance of the steel bar is large, the control difficulty of the processing quality of the screw head is large, the stress condition of the thread rolling wheel is severe, and the service life is short.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a steel bar connecting device which has the characteristics of high steel bar connecting strength, strong adaptability, convenience in operation and the like.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a steel bar connecting device comprises a steel bar connecting sleeve, wherein a left port of the steel bar connecting sleeve is a steel bar inserting hole, a steel bar fixing connecting cavity is sequentially communicated with the right side of the steel bar inserting hole from left to right, a pressure spring accommodating cavity and an internal threaded hole are formed, and the steel bar fixing connecting cavity is a conical cavity with a left port smaller than a right port; a steel bar hoop component is arranged in the conical cavity, a steel bar hoop component pressure spring is arranged in the pressure spring accommodating cavity, and a threaded connecting piece is screwed in the inner threaded hole to push the steel bar hoop component pressure spring to press the steel bar hoop component;
the steel bar hoop component comprises a group of hoop connecting sheets, each hoop connecting sheet is arranged around the inner wall of the steel bar fixed connecting cavity in the circumferential direction, the inner side wall of each hoop connecting sheet is an arc-shaped surface positioned on the same axial lead, and steel bar engaging teeth are arranged on the circular arc surface of each hoop connecting sheet, the outer side wall of each hoop connecting sheet is provided with a conical surface matched with the taper of the inner wall of the steel bar fixed connecting cavity, so that when the outer side wall of each hoop connecting sheet is arranged and tightly attached to the inner wall of the steel bar fixed connecting cavity in an annular manner, the inner side wall of each hoop connecting sheet forms a cylindrical inner ring surface with an elastic gap, the cylindrical inner ring surface is a steel bar holding fixing sleeve, a cylindrical cavity defined by the cylindrical inner ring surface is a steel bar holding fixing cavity, when a threaded connecting piece is screwed so that a pressure spring of the steel bar hoop component applies thrust to the steel bar hoop component to enable the steel bar hoop, thereby make the reinforcing bar hold tightly fixed chamber diameter and dwindle gradually, the reinforcing bar holds tightly fixed cover and will be located the reinforcing bar that the reinforcing bar held tightly fixed intracavity and holds tightly, and reinforcing bar interlock tooth on the inside wall of each clamp connection piece inlays in the reinforcing bar rib to fix the reinforcing bar in reinforcing bar fixed connection intracavity.
The invention further improves that:
the steel bar hoop component is provided with a hoop connecting sheet positioning structure which enables each hoop connecting sheet to be circumferentially arranged in a circular mode and axially positioned.
The hoop connection piece positioning structure is as follows: the inner side wall of each clamp connection piece is provided with a limiting groove, each limiting groove is arranged along the circumferential direction of the steel bar holding fixing sleeve and is provided with a C-shaped ring matched with the limiting groove, and the C-shaped ring is embedded into the limiting groove of each clamp connection piece to be positioned in the steel bar fixing connection cavity, so that the inner wall of each clamp connection piece and the steel bar fixing connection cavity are arranged in the circumferential direction.
The hoop connection piece positioning structure is as follows: the round metal sheets with the diameters being matched with the steel bar holding fixed cavity tightly and the round magnet with the diameter being not larger than the diameter of the round metal sheets are included, the round magnet is located between the two round metal sheets, and each hoop connecting sheet is annularly arranged and adsorbed on the round edges of the two round metal sheets 9 by the round magnet to be positioned in the steel bar fixed connection cavity, so that the inner wall of each hoop connecting sheet and the steel bar fixed connection cavity are circumferentially arranged.
The right end of the threaded connector is provided with an external threaded hole or an internal threaded hole for connecting other steel bar connecting devices.
The number of the clamp connecting sheets is four.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the reinforcing steel bar fixing connection cavity of the device is a conical cavity with a left port smaller than a right port, and the reinforcing steel bar hoop assembly moves left and right to enable the reinforcing steel bar to tightly hold the fixing sleeve to be enlarged or reduced, so that the requirement on tolerance difference of different manufacturers of the reinforcing steel bar is low, and the adaptability is good; when the reinforcing steel bar is subjected to a pulling force in the opposite direction of the device, the reinforcing steel bar drives the reinforcing steel bar hoop component to move towards the direction with a small opening along the inner wall of the conical cavity of the reinforcing steel bar fixed connection cavity, so that the fastening and fixing sleeve of the reinforcing steel bar is reduced, the depth of the reinforcing steel bar engagement teeth on the inner side wall of each hoop connecting sheet embedded into the reinforcing steel bar ribs is increased, and the strength of reinforcing steel bar connection is ensured; insert the reinforcing bar by the reinforcing bar patchhole, screw threaded connection spare can be fixed this device and reinforcing bar, the simple operation, and the site operation time shortens greatly, can the short time connect reinforcing bar, and intensity and quality can both reach the standard requirement well.
The steel bar connecting device has the characteristics of high steel bar connecting strength, strong adaptability, convenience in operation and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the reinforcement cage of FIG. 1;
FIG. 3 is a schematic structural view of the reinforcement clip assembly of FIG. 1;
FIG. 4 is a schematic view of the structure of the strap of FIG. 1;
FIG. 5 is a schematic view of the combination of a reinforcement clip assembly and clip web positioning structure;
FIG. 6 is a schematic view of the combination of a reinforcement clip assembly and clip web positioning structure;
fig. 7 is a schematic diagram of the structure of the use state of the present invention.
In the drawings: 1. a steel bar connecting sleeve; 2. inserting the reinforcing steel bar into the hole; 3. the reinforcing steel bar is fixedly connected with the cavity; 4. a pressure spring accommodating cavity; 5. an internally threaded bore; 6. a steel bar hoop component compression spring; 7. a clamp connecting sheet; 7-1, inner side wall of the hoop connecting sheet; 7-1-1. steel bars are meshed with the teeth; 7-1-2, a limit groove; 7-2, the outer side wall of the hoop connecting sheet; c-shaped ring; 9. a circular metal sheet; 10. a disc-shaped magnet; 11. a threaded connection; 12. and (5) reinforcing steel bars.
Detailed Description
The invention will be described in further detail below with reference to the figures and specific examples.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.
As can be seen from the embodiments shown in fig. 1 to 7, the embodiment includes a steel bar connecting sleeve 1, a left port of the steel bar connecting sleeve 1 is a steel bar inserting hole 2, a steel bar fixing connecting cavity 3, a pressure spring accommodating cavity 4 and an internal threaded hole 5 are sequentially communicated from left to right on the right side of the steel bar inserting hole 2, and the steel bar fixing connecting cavity 3 is a conical cavity with a left port smaller than a right port; a steel bar hoop component is arranged in the conical cavity, a steel bar hoop component pressure spring 6 is arranged in the pressure spring accommodating cavity 4, and a threaded connecting piece 11 is screwed in the internal threaded hole 5 to push the steel bar hoop component pressure spring 6 to press the steel bar hoop component;
the steel bar hoop component comprises a group of hoop connecting sheets 7, each hoop connecting sheet 7 is arranged around the inner wall of the steel bar fixed connecting cavity 3 in the circumferential direction, the inner side wall 7-1 of each hoop connecting sheet 7 is an arc-shaped surface positioned on the same axial lead, steel bar meshing teeth 7-1-1 are arranged on the circular arc surface of each hoop connecting sheet, the teeth incline towards the direction of a pressure spring of the steel bar hoop component, when the steel bar is dragged towards the opposite direction, the teeth can be embedded into the steel bar ribs, and the teeth are more deeply embedded when the steel bar is dragged outwards, and the steel bar is more firmly fixed; the outer side wall 7-2 of the hoop connecting piece 7 is provided with a conical surface matched with the taper of the inner wall of the reinforcing steel bar fixing connecting cavity 3, so that when the outer side wall 7-2 of each hoop connecting piece 7 is annularly arranged and tightly attached to the inner wall of the reinforcing steel bar fixing connecting cavity 3, the inner side wall 7-1 of each hoop connecting piece 7 forms a cylindrical inner annular surface with a clearance, the cylindrical inner annular surface is a reinforcing steel bar holding fixing sleeve, a cylindrical cavity defined by the cylindrical inner annular surface is a reinforcing steel bar holding fixing cavity, when the threaded connecting piece 11 is screwed to enable the pressure spring 6 of the reinforcing steel bar clamping component to apply thrust to the reinforcing steel bar clamping component to enable the reinforcing steel bar clamping component to move towards the left side, the conical cavity inner wall of the reinforcing steel bar fixing connecting cavity 3 gradually guides each hoop connecting piece 7 to the axis position of the reinforcing steel bar holding fixing cavity 3, the diameter of the reinforcing steel bar holding fixing cavity is, the reinforcing steel bars on the inner side wall 7-1 of each hoop connecting sheet 7 are engaged with the teeth 7-1-1 and embedded into the reinforcing steel bar ribs so as to fix the reinforcing steel bars in the reinforcing steel bar fixing and connecting cavities 3. The internal thread hole at the right end of the steel bar connecting sleeve can be connected with other steel bar connecting devices.
The steel bar hoop component is provided with a hoop connecting sheet positioning structure which enables each hoop connecting sheet to be circumferentially arranged in a circular mode and axially positioned.
The hoop connection piece positioning structure is as follows: the inner side wall 7-1 of each hoop connecting sheet 7 is provided with a limiting groove 7-1-2, each limiting groove 7-1-2 is circumferentially arranged along the circumference of the steel bar holding fixed sleeve and is provided with a C-shaped ring 8 matched with the limiting groove 7-1-2, and the C-shaped ring 8 is embedded into the limiting groove 7-1-2 of each hoop connecting sheet 7 so as to be positioned in the steel bar fixed connecting cavity 3, so that the inner walls of the hoop connecting sheets 7 and the steel bar fixed connecting cavity 3 are circumferentially arranged.
The hoop connection piece positioning structure is as follows: including two diameters and the reinforcing bar hold tightly circular sheetmetal 9 of fixed chamber looks adaptation and a diameter be not more than circular sheetmetal 9 diameter's disc type magnet 10, disc type magnet 10 is located between two circular sheetmetals 9, and each clamp connection piece 7 ring is listed as and is adsorbed on the round edge of two circular sheetmetals 9 by disc type magnet 10 to its location in reinforcing bar fixed connection intracavity 3, make the inner wall circumference range of each clamp connection piece 7 ring reinforcing bar fixed connection intracavity 3.
The right end of the threaded connector 11 is provided with an external threaded hole or an internal threaded hole for connecting other steel bar connecting devices.
The number of the hoop connecting sheets 7 is four.
The using method comprises the following steps: the reinforcing steel bar is inserted into the reinforcing steel bar inserting hole 2, penetrates through the reinforcing steel bar clasping fixing cavity and extends to the inner ring of a pressure spring 6 of a reinforcing steel bar hoop component, a threaded connector 11 is screwed, and when the pressure spring 6 of the reinforcing steel bar hoop component applies thrust to the reinforcing steel bar hoop component to enable the reinforcing steel bar hoop component to move towards the left side, the conical cavity inner wall of the reinforcing steel bar fixing connecting cavity 3 gradually guides each hoop connecting piece 7 to the axis position of the reinforcing steel bar fixing connecting cavity 3, so that the diameter of the reinforcing steel bar clasping fixing cavity is gradually reduced, the reinforcing steel bar clasping fixing sleeve clasps the reinforcing steel bar located in the reinforcing steel bar clasping fixing cavity, and reinforcing steel bar meshing teeth 7-1-1 on the inner side wall 7-1 of each. The right end of the reinforcing steel bar connecting sleeve is connected with other reinforcing steel bar connecting devices through an internal threaded hole, or the right end of the threaded connecting piece 11 is provided with an external threaded hole or an internal threaded hole which is connected with other reinforcing steel bar connecting devices.
Claims (6)
1. A steel bar connecting device is characterized in that: the steel bar connecting device comprises a steel bar connecting sleeve (1), wherein a left port of the steel bar connecting sleeve (1) is a steel bar inserting hole (2), a steel bar fixing connecting cavity (3), a pressure spring accommodating cavity (4) and an internal thread hole (5) are sequentially communicated with the right side of the steel bar inserting hole (2) from left to right, and the steel bar fixing connecting cavity (3) is a conical cavity with a left port smaller than a right port; a steel bar hoop component is arranged in the conical cavity, a steel bar hoop component pressure spring (6) is arranged in the pressure spring accommodating cavity (4), and a threaded connecting piece (11) is screwed in the internal threaded hole (5) to push the steel bar hoop component pressure spring (6) to press the steel bar hoop component;
the steel bar clamp component comprises a group of clamp connecting pieces (7), each clamp connecting piece (7) is arranged on the inner wall of the steel bar fixed connection cavity (3) in the circumferential direction, the inner side wall (7-1) of each clamp connecting piece (7) is an arc surface located on the same axial lead, and steel bar engaging teeth (7-1-1) are arranged on the circular arc surface of the inner side wall, the outer side wall (7-2) of each clamp connecting piece (7) is provided with a conical surface matched with the inner wall taper of the steel bar fixed connection cavity (3), so that when the outer side wall (7-2) of each clamp connecting piece (7) is arranged in an annular mode and tightly attached to the inner wall of the steel bar fixed connection cavity (3), the inner side wall (7-1) of each clamp connecting piece (7) forms a cylindrical inner annular surface with an elastic gap, and the cylindrical inner annular surface is a steel bar holding fixing sleeve, cylindrical cavity that cylindrical inner ring face encloses embraces fixed chamber tightly for the reinforcing bar, screws threaded connection spare (11) makes reinforcing bar clamp subassembly pressure spring (6) right when reinforcing bar clamp subassembly applys thrust and makes it move to the left side, the tapered intracavity wall of reinforcing bar fixed connection chamber (3) will each clamp connection piece (7) lead gradually the axle center position in reinforcing bar fixed connection chamber (3), thereby make the reinforcing bar embraces fixed chamber diameter and reduces gradually, the reinforcing bar embraces fixed cover and will be located the reinforcing bar of reinforcing bar armful fixed intracavity is held tightly, each in reinforcing bar interlock tooth (7-1-1) embedding reinforcing bar rib on inside wall (7-1) of clamp connection piece (7) to fix the reinforcing bar in reinforcing bar fixed connection chamber (3).
2. A reinforcing bar coupler according to claim 1, wherein: the steel bar hoop component is provided with a hoop connecting sheet positioning structure which enables each hoop connecting sheet to be circumferentially arranged in a circular mode and axially positioned.
3. A reinforcing bar coupler according to claim 2, wherein: the hoop connection piece positioning structure is as follows: limiting grooves (7-1-2) are formed in the inner side wall (7-1) of each clamp connecting piece (7), each limiting groove (7-1-2) is circumferentially arranged along the steel bar holding fixing sleeve and is provided with a C-shaped ring (8) matched with the limiting groove (7-1-2), and the C-shaped ring (8) is embedded into the limiting groove (7-1-2) of each clamp connecting piece (7) to be positioned in the steel bar fixing connecting cavity (3) so that each clamp connecting piece (7) surrounds the inner wall of the steel bar fixing connecting cavity (3) in circumferential arrangement.
4. A reinforcing bar coupler according to claim 2, wherein: the hoop connection piece positioning structure is as follows: the hoop connecting pieces (7) are arranged in an annular mode and are adsorbed on the round edges of the two circular metal pieces (9) by the circular magnet (10) so as to be positioned in the reinforcing steel bar fixed connecting cavity (3), and the hoop connecting pieces (7) are arranged on the inner wall of the reinforcing steel bar fixed connecting cavity (3) in the circumferential direction.
5. A reinforcing bar connecting device according to any one of claims 1 to 4, wherein: and the right end of the threaded connecting piece (11) is provided with an external threaded hole or an internal threaded hole for connecting other steel bar connecting devices.
6. A reinforcing bar connecting device according to any one of claim 5, wherein: the number of the hoop connecting sheets (7) is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010161810.0A CN111236539A (en) | 2020-03-10 | 2020-03-10 | Steel bar connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010161810.0A CN111236539A (en) | 2020-03-10 | 2020-03-10 | Steel bar connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111236539A true CN111236539A (en) | 2020-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010161810.0A Pending CN111236539A (en) | 2020-03-10 | 2020-03-10 | Steel bar connecting device |
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| Country | Link |
|---|---|
| CN (1) | CN111236539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117403533A (en) * | 2023-12-15 | 2024-01-16 | 山东大学 | Assembled structural connection device and bridge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060122264A (en) * | 2005-05-26 | 2006-11-30 | 주식회사 코스턴 | One-touch type coupling apparatus for steel reinforcing |
| CN207905247U (en) * | 2018-01-31 | 2018-09-25 | 刘振华 | Reinforcing bar Quick mechanical connection structure |
| KR101941127B1 (en) * | 2018-07-13 | 2019-01-22 | 주식회사 베스트커플러 | Coupler for Connecting Reinforcing Rods |
| KR20190000226U (en) * | 2017-07-18 | 2019-01-28 | (주) 유니플로 | One-Touch Type Coupler with the durability |
| CN110284657A (en) * | 2019-06-25 | 2019-09-27 | 中企华群(山东)投资集团有限公司 | A kind of steel bar connecting structure |
| CN211923240U (en) * | 2020-03-10 | 2020-11-13 | 河北兆丰科源航天设备有限公司 | Steel bar connecting device |
-
2020
- 2020-03-10 CN CN202010161810.0A patent/CN111236539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060122264A (en) * | 2005-05-26 | 2006-11-30 | 주식회사 코스턴 | One-touch type coupling apparatus for steel reinforcing |
| KR20190000226U (en) * | 2017-07-18 | 2019-01-28 | (주) 유니플로 | One-Touch Type Coupler with the durability |
| CN207905247U (en) * | 2018-01-31 | 2018-09-25 | 刘振华 | Reinforcing bar Quick mechanical connection structure |
| KR101941127B1 (en) * | 2018-07-13 | 2019-01-22 | 주식회사 베스트커플러 | Coupler for Connecting Reinforcing Rods |
| CN110284657A (en) * | 2019-06-25 | 2019-09-27 | 中企华群(山东)投资集团有限公司 | A kind of steel bar connecting structure |
| CN211923240U (en) * | 2020-03-10 | 2020-11-13 | 河北兆丰科源航天设备有限公司 | Steel bar connecting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117403533A (en) * | 2023-12-15 | 2024-01-16 | 山东大学 | Assembled structural connection device and bridge |
| CN117403533B (en) * | 2023-12-15 | 2024-03-12 | 山东大学 | Assembled structural connection device and bridge |
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Effective date of registration: 20231013 Address after: 065700 West side of Mount Taishan Road, Bazhou Economic and Technological Development Zone, Langfang City, Hebei Province (in the yard of Hebei Zhaofeng Keyuan Aerospace Equipment Co., Ltd.) Applicant after: Hebei Wilsis Metal Products Co.,Ltd. Address before: 065001 West of Mount Taishan Road, Bazhou Economic and Technological Development Zone, Langfang City, Hebei Province South of Langfang Taishun Power Equipment Co.,Ltd. Applicant before: Hebei Zhaofeng Keyuan Aerospace Equipment Co.,Ltd. |
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