CN112942687A - Portable linkage gear device for quickly connecting steel bar sleeves - Google Patents
Portable linkage gear device for quickly connecting steel bar sleeves Download PDFInfo
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- CN112942687A CN112942687A CN202110329581.3A CN202110329581A CN112942687A CN 112942687 A CN112942687 A CN 112942687A CN 202110329581 A CN202110329581 A CN 202110329581A CN 112942687 A CN112942687 A CN 112942687A
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- sleeve
- steel bar
- wedge
- steel
- parallel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 230000001681 protective effect Effects 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 23
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a portable linkage gear device for quickly connecting steel bar sleeves, which comprises a protective shell and a parallel sleeve, wherein the protective shell is formed by combining an outer shell and a cover body, the front side surface and the rear side surface of the outer shell are respectively provided with a first mounting hole, the upper surface of the outer shell is provided with a second mounting hole, the first mounting holes are respectively and fixedly provided with a first ball bearing, the hole body of the second mounting hole is internally and fixedly provided with a second ball bearing, the inner ring of the second ball bearing is fixedly provided with the second ball bearing, and the parallel sleeve is a round pipe; through setting up the connecting device that protecting sheathing and parallel sleeve pipe combination constitute to constitute by shell body and lid combination through setting up protecting sheathing, and install first ball bearing and second ball bearing on the shell body, and through with parallel sleeve pipe fixed mounting among first ball bearing's bearing inner race, and drive it through turning handle and pivot, thereby make things convenient for the staff to carry out fixed connection to steel bar structure.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a portable linkage gear device for quickly connecting steel bar sleeves.
Background
With the increasing scale of urban construction and the increasing number of high-rise buildings and large-span buildings, the production of reinforcing steel bars gradually develops towards the direction of large diameter and high strength, and at present, the building standard is difficult to reach by the traditional reinforcing steel bar connection process, such as lap-joint binding, arc welding, gas pressure welding, flash butt welding and the like, and the construction process is complex. Therefore, the telescopic connection technology of reinforcing bar is prepared favourably, more and more promote in engineering building, but reinforcing bar muffjoint is usually that artifical with the torque spanner screw up, waste time and energy, also influence the progress of production simultaneously, especially under the condition that the workman is neglected, muffjoint does not reach the standard requirement, consequently design a portable reinforcing bar sleeve quick connect's linkage gear device, adopt this kind of device, make the reinforcing bar quick convenient be connected to in the sleeve, let this kind of work progress quick convenient completion, productivity and construction quality are improved.
Disclosure of Invention
The invention aims to provide a portable linkage gear device for quickly connecting steel bar sleeves, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a portable linkage gear device for quickly connecting reinforcing steel bar sleeves comprises a protective shell and a parallel sleeve, wherein the protective shell is formed by combining a shell body and a cover body, the front side surface and the back side surface of the shell body are respectively provided with a first mounting hole, the upper surface of the shell body is provided with a second mounting hole, the first mounting holes are respectively and fixedly provided with a first ball bearing, the hole body of each second mounting hole is internally and fixedly provided with a second ball bearing, the inner ring of each second ball bearing is fixedly provided with a circular tube, the tube cavity of the parallel sleeve is internally provided with a first reinforcing steel bar, the two ends of the first reinforcing steel bar are respectively provided with reinforcing steel bar threads, the end part of the first reinforcing steel bar is fixedly connected with a second reinforcing steel bar through a straight thread sleeve, the two ends of the second reinforcing steel bar are respectively provided with reinforcing steel bar thread structures with the same size as the two ends of the first reinforcing steel bar, and the tube body of the parallel sleeve is fixedly arranged in, and fixed mounting has big umbelliform gear on parallel casing's body lateral wall, big umbelliform gear is located and sets up among the inner chamber of shell body, fixed mounting has the pivot among second ball bearing's the bearing inner race, the lower extreme fixed mounting of pivot has little umbelliform gear, the teeth of a cogwheel on the little umbelliform gear and the teeth of a cogwheel on the big umbelliform gear set up for meshing mutually, and the fixed welding in upper end of pivot has the turning handle, parallel casing's both ends all are provided with quick the knot, it is provided with a set ofly at parallel casing's the equal symmetry in both ends to detain fast.
Preferably, the first steel bar and the second steel bar are deformed steel bars, the types and the specifications of the first steel bar and the second steel bar are identical, and steel bar threads formed at two ends of the deformed steel bars are meshed with an internal thread structure formed in the straight thread sleeve.
Preferably, the inner side walls of the two ends of the inner cavity of the parallel sleeve are provided with wedge-shaped grooves, and wedge-shaped blocks are embedded in the wedge-shaped grooves on the parallel sleeve.
Preferably, the wedge-shaped block comprises connecting plate and antiskid ribbed tile combination, the connecting plate is the annular plate, and equidistant a plurality of antiskid ribbed tiles that are provided with on its plate body.
Preferably, connecting plate and antiskid sheets are spring steel, and be integrated into one piece between connecting plate and the antiskid sheet, and leave the clearance between the adjacent antiskid sheet, the lateral surface of antiskid sheet sets up for the slope, and the lateral surface inclination of antiskid sheet is identical with the lateral wall inclination of wedge groove.
Preferably, the annular external diameter that the antiskid sheets tip encloses into is less than the opening position diameter of wedge groove, and the annular internal diameter that the antiskid sheets tip encloses into is greater than the diameter of first reinforcing bar, and the inside and outside side of antiskid sheets has all seted up anti-skidding line, and when the wedge inserts during to the wedge groove, the medial surface of its antiskid sheets closely laminates with the lateral wall of first reinforcing bar, and the lateral surface of antiskid sheets closely laminates with the notch lateral wall of wedge groove, and the wedge is after the installation finishes, its tip is fixed a position for detaining fast through the parallel sleeve tip setting.
Preferably, the outer shell and the cover body are rotatably connected through a hinge, a buckle lock is fixedly mounted on the other side face of the outer shell, and the other end of the cover body is fixedly connected with the outer shell through the buckle lock.
Preferably, the upper surface of the outer housing is provided with a torsion meter.
Compared with the prior art, the invention has the beneficial effects that:
1. the connecting device is formed by combining the protective shell and the parallel sleeve, the protective shell is formed by combining the shell body and the cover body, the first ball bearing and the second ball bearing are arranged on the shell body, the parallel sleeve is fixedly arranged in the bearing inner ring of the first ball bearing and is driven by the rotating handle and the rotating shaft, and therefore workers can conveniently and fixedly connect the steel bar structure;
2. wedge-shaped grooves are formed in the inner side walls of the two ends of the inner cavity of the parallel sleeve, the parallel sleeve and the first steel bar are positioned and fixed through wedge-shaped blocks, the wedge-shaped blocks are formed by combining connecting plates and anti-skid sheets, and gaps are reserved between the adjacent anti-skid sheets, so that the anti-skid sheets can better limit and fix the parallel sleeve and the first steel bar;
3. the anti-skidding threads are arranged on the inner side face and the outer side face of each anti-skidding piece, the diameter of the opening position of each wedge-shaped groove is smaller than that of the annular outer diameter defined by the end portions of the anti-skidding pieces when the anti-skidding pieces are in a reset state, and the diameter of the annular inner diameter defined by the end portions of the anti-skidding pieces is larger than that of the first steel bar, so that a worker can conveniently sleeve the wedge-shaped block on the steel bar rod.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a protective housing;
FIG. 3 is a half sectional view of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is an enlarged view of the structure at B in FIG. 3;
FIG. 6 is a half cross-sectional view of a parallel bushing;
fig. 7 is a schematic structural diagram of a wedge-shaped block.
In the figure: the protective casing comprises a protective casing 1, a parallel sleeve 2, an outer casing 3, a cover body 4, a hinge 5, a first mounting hole 6, a second mounting hole 7, a first ball bearing 8, a second ball bearing 9, a rotating shaft 10, a small umbrella-shaped gear 11, a rotating handle 12, a large umbrella-shaped gear 13, a quick buckle 14, a wedge-shaped groove 15, a wedge-shaped block 16, a connecting plate 17, an anti-slip sheet 18, a first steel bar 19, a second steel bar 20, a straight thread sleeve 21, a torsion meter 22 and a buckle lock 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a portable linkage gear device for quickly connecting reinforcing steel bar sleeves comprises a protective shell 1 and a parallel sleeve 2, wherein the protective shell 1 is formed by combining an outer shell 3 and a cover body 4, the front side surface and the rear side surface of the outer shell 3 are respectively provided with a first mounting hole 6, the upper surface of the outer shell 3 is provided with a second mounting hole 7, the first mounting holes 6 are respectively and fixedly provided with a first ball bearing 8, the hole body of the second mounting hole 7 is respectively and fixedly provided with a second ball bearing 9, the inner ring of the second ball bearing 9 is fixedly provided with a parallel sleeve 2, the pipe cavity of the parallel sleeve is internally provided with a first reinforcing steel bar 19, the two ends of the first reinforcing steel bar 19 are respectively provided with reinforcing steel bar thread, the end part of the first reinforcing steel bar 19 is fixedly connected with a second reinforcing steel bar 20 through a straight thread sleeve 21, and the two ends of the second reinforcing steel bar 20 are respectively provided with reinforcing steel bar thread structures with the same size, the pipe body of the parallel sleeve 2 is fixedly arranged in the bearing inner ring of a first ball bearing 8, the outer side wall of the pipe body of the parallel sleeve 2 is fixedly provided with a large umbrella-shaped gear 13, the large umbrella-shaped gear 13 is arranged in the inner cavity of the outer shell 3, the bearing inner ring of a second ball bearing 9 is fixedly provided with a rotating shaft 10, the lower end of the rotating shaft 10 is fixedly provided with a small umbrella-shaped gear 11, the gear teeth on the small umbrella-shaped gear 11 are meshed with the gear teeth on the large umbrella-shaped gear 13, the upper end of the rotating shaft 10 is fixedly welded with a rotating handle 12, the two ends of the parallel sleeve 2 are respectively provided with a quick buckle 14, the quick buckles 14 are symmetrically arranged at the two ends of the parallel sleeve 2 in a group, a connecting device formed by combining the protective shell 1 and the parallel sleeve 2 is arranged, the protective shell 1 is formed by combining the outer shell 3 and the cover body 4, and the first ball bearing 8 and the second, and the parallel sleeve 2 is fixedly arranged in the bearing inner ring of the first ball bearing 8 and is driven by the rotating handle 12 and the rotating shaft 10, so that the fixed connection of the steel bar structure by workers is facilitated.
Furthermore, the first steel bar 19 and the second steel bar 20 are both screw-thread steel, the types and specifications of the first steel bar and the second steel bar are identical, and the steel bar thread arranged at the two ends of the screw-thread steel is meshed with the internal thread structure arranged in the straight screw-thread sleeve 21;
further, wedge groove 15 has all been seted up on the inner chamber both ends inside wall of parallel casing 2, and parallel casing 2 goes up the embedding among the wedge groove 15 and installs wedge 16, through set up wedge groove 15 on parallel casing 2's inner chamber both ends inside wall, and lead to wedge 16 to fix a position parallel casing 2 and first reinforcing bar 19, and constitute by connecting plate 17 and the combination of antiskid ribbed tile 18 through setting wedge 16 to, and leave the clearance between adjacent antiskid ribbed tile 18, thereby guarantee that antiskid ribbed tile 18 can be better carry out spacing fixed to parallel casing 2 and first reinforcing bar 19.
Further, the wedge-shaped block 16 is formed by combining a connecting plate 17 and anti-slip sheets 18, wherein the connecting plate 17 is an annular plate, and a plurality of anti-slip sheets 18 are arranged on the plate body at equal intervals.
Furthermore, the connecting plate 17 and the anti-slip sheets 18 are made of spring steel, the connecting plate 17 and the anti-slip sheets 18 are integrally formed, gaps are reserved between the adjacent anti-slip sheets 18, the outer side surfaces of the anti-slip sheets 18 are obliquely arranged, and the inclination angles of the outer side surfaces of the anti-slip sheets 18 are matched with the inclination angles of the side walls of the wedge-shaped grooves 15.
Furthermore, the outer diameter of the ring surrounded by the end of the anti-slip sheet 18 is smaller than the diameter of the opening position of the wedge-shaped groove 15, the inner diameter of the ring surrounded by the end of the anti-slip sheet 18 is larger than the diameter of the first steel bar 19, the inner side and the outer side of the anti-slip sheet 18 are both provided with anti-slip threads, when the wedge 16 is inserted into the wedge-shaped groove 15, the inner side of the anti-slip sheet 18 is tightly attached to the outer side wall of the first steel bar 19, the outer side of the anti-slip sheet 18 is tightly attached to the side wall of the notch of the wedge-shaped groove 15, after the wedge 16 is installed, the end of the wedge is positioned and fixed by the quick buckle 14 arranged at the end of the parallel sleeve 2, the inner side and the outer side of the anti-slip sheet 18 are both provided with anti-slip threads, and the outer diameter of the ring surrounded by the end of the anti-slip sheet 18 is smaller than the diameter of the opening position of the wedge, thereby facilitating the working personnel to sleeve the wedge-shaped block 16 on the reinforcing bar rod.
Furthermore, the outer shell 3 and the cover 4 are rotatably connected through a hinge 5, a snap lock 23 is fixedly mounted on the other side surface of the outer shell 3, and the other end of the cover 4 is fixedly connected with the outer shell 3 through the snap lock 23.
Further, the upper surface of the outer case 3 is provided with a torsion meter 22.
The working principle is as follows: by arranging the connecting device formed by combining the protective shell 1 and the parallel sleeve 2, arranging the protective shell 1 to be formed by combining the outer shell 3 and the cover body 4, installing the first ball bearing 8 and the second ball bearing 9 on the outer shell 3, fixedly installing the parallel sleeve 2 in the bearing inner ring of the first ball bearing 8 and driving the parallel sleeve 2 through the rotating handle 12 and the rotating shaft 10, the fixed connection of a steel bar structure by workers is facilitated, arranging the wedge grooves 15 on the inner side walls at the two ends of the inner cavity of the parallel sleeve 2, positioning and fixing the parallel sleeve 2 and the first steel bar 19 through the wedge blocks 16, arranging the wedge blocks 16 to be formed by combining the connecting plates 17 and the anti-skid sheets 18, and leaving gaps between the adjacent anti-skid sheets 18, thereby ensuring that the anti-skid sheets 18 can better limit and fix the parallel sleeve 2 and the first steel bar 19, the anti-skid grains are arranged on the inner side and the outer side of the anti-skid sheet 18, the anti-skid sheet 18 is ensured to be in a reset state, the annular outer diameter defined by the end part of the anti-skid sheet is smaller than the diameter of the opening position of the wedge-shaped groove 15, and the annular inner diameter defined by the end part of the anti-skid sheet 18 is larger than the diameter of the first reinforcing steel bar 19, so that a worker can conveniently sleeve the wedge-shaped block 16 on the reinforcing steel bar rod, the torsion force meter 22 is arranged on the upper surface of the outer shell 3, the torsion force during the installation of the reinforcing steel bar is detected through the torsion force, the installation of the reinforcing steel bar is ensured to be in place.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a portable steel sleeve quick connect's linkage gear, includes protecting sheathing (1) and parallel sleeve pipe (2), its characterized in that: the protective shell (1) is formed by combining a shell body (3) and a cover body (4), first mounting holes (6) are formed in the front side surface and the rear side surface of the shell body (3), a second mounting hole (7) is formed in the upper surface of the shell body (3), first ball bearings (8) are fixedly mounted in the first mounting holes (6), second ball bearings (9) are fixedly mounted in hole bodies of the second mounting holes (7), inner rings of the second ball bearings (9) are fixedly mounted in the inner rings, the parallel sleeve (2) is a round pipe, first steel bars (19) are arranged in a pipe cavity of the parallel sleeve, steel bar thread structures are formed in two ends of the first steel bars (19), second steel bars (20) are fixedly connected to the end portions of the first steel bars (19) through straight thread sleeves (21), and steel bar thread structures with the same size as the two ends of the first steel bars (19) are formed in two ends of the second steel bars (20), the utility model discloses a bearing of parallel sleeve (2) is characterized in that the body of parallel sleeve (2) is among the bearing inner race of fixed mounting first ball bearing (8), and fixed mounting has big umbelliform gear (13) on the body lateral wall of parallel sleeve (2), big umbelliform gear (13) are located and set up among the inner chamber of shell body (3), fixed mounting has pivot (10) among the bearing inner race of second ball bearing (9), the lower extreme fixed mounting of pivot (10) has little umbelliform gear (11), the teeth of a cogwheel on little umbelliform gear (11) and the teeth of a cogwheel on big umbelliform gear (13) set up for meshing mutually, and the fixed welding in upper end of pivot (10) has turning handle (12), the both ends of parallel sleeve (2) all are provided with fast knot (14), fast knot (14) are provided with a set ofly at the equal symmetry in the both ends of parallel sleeve.
2. The portable linkage gear device for the quick connection of the steel sleeve as recited in claim 1, wherein: the first steel bar (19) and the second steel bar (20) are both deformed steel bars, the types and the specifications of the first steel bar and the second steel bar are identical, and steel bar thread arranged at two ends of the deformed steel bars is meshed with an internal thread structure arranged inside the straight thread sleeve (21).
3. The portable linkage gear device for the quick connection of the steel sleeve as recited in claim 1, wherein: wedge-shaped grooves (15) are formed in the inner side walls of the two ends of the inner cavity of the parallel casing (2), and wedge blocks (16) are embedded in the wedge-shaped grooves (15) in the parallel casing (2).
4. The portable reinforced sleeve quick connect linkage gear device of claim 3, wherein: wedge block (16) constitute by connecting plate (17) and antiskid piece (18) combination, connecting plate (17) are the annular plate, and its plate body is equidistant to be provided with a plurality of antiskid pieces (18).
5. The portable reinforced sleeve quick connect linkage gear device of claim 4, wherein: connecting plate (17) and antiskid piece (18) are the spring steel, and be integrated into one piece between connecting plate (17) and antiskid piece (18), and leave the clearance between adjacent antiskid piece (18), the lateral surface of antiskid piece (18) sets up for the slope, and the lateral surface inclination of antiskid piece (18) is identical with the lateral wall inclination of wedge groove (15).
6. The portable reinforced sleeve quick connect linkage gear device of claim 5, wherein: the utility model discloses a wedge groove (15) of antiskid, including anti-skidding piece (18), the inside diameter that the tip of antiskid piece (18) encloses into annular external diameter is less than the opening position diameter of wedge groove (15), and the inside diameter that the tip of antiskid piece (18) encloses into annular is greater than the diameter of first reinforcing bar (19), and the interior of antiskid piece (18), anti-skidding line has all been seted up to the lateral surface, and when wedge (16) inserted among wedge groove (15), the medial surface of its antiskid piece (18) closely laminates with the lateral wall of first reinforcing bar (19), and the lateral surface of antiskid piece (18) closely laminates with the notch lateral wall of wedge groove (15), and wedge (16) are after the installation finishes, its tip is fixed a position for detaining fast (14) that set up through parallel sleeve (2).
7. The portable linkage gear device for the quick connection of the steel sleeve as recited in claim 1, wherein: the outer shell (3) is rotatably connected with the cover body (4) through a hinge (5), a buckle lock (23) is fixedly mounted on the other side face of the outer shell (3), and the other end of the cover body (4) is fixedly connected with the outer shell (3) through the buckle lock (23).
8. The portable linkage gear device for the quick connection of the steel sleeve as recited in claim 1, wherein: the upper surface of the outer shell (3) is provided with a torsion meter (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110329581.3A CN112942687A (en) | 2021-03-29 | 2021-03-29 | Portable linkage gear device for quickly connecting steel bar sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110329581.3A CN112942687A (en) | 2021-03-29 | 2021-03-29 | Portable linkage gear device for quickly connecting steel bar sleeves |
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| Publication Number | Publication Date |
|---|---|
| CN112942687A true CN112942687A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110329581.3A Pending CN112942687A (en) | 2021-03-29 | 2021-03-29 | Portable linkage gear device for quickly connecting steel bar sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112942687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119426497A (en) * | 2025-01-13 | 2025-02-14 | 南通中房建设工程集团有限公司 | A steel bar quick connection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870626A (en) * | 1949-11-04 | 1959-01-27 | Gillberg Johannes | Reinforcing bars having depressed portions for use in concrete constructions |
| CN1723324A (en) * | 2003-01-08 | 2006-01-18 | 金龙根 | Reinforcing bar coupler |
| CN107882273A (en) * | 2017-12-26 | 2018-04-06 | 郑晓 | A kind of rapid steel reinforcing bar connector |
| CN108331259A (en) * | 2018-01-30 | 2018-07-27 | 沈阳建筑大学 | The wedge-shaped intermediate plate anchor head of major diameter high tensile reinforcement for reinforced concrete beam column node and application |
| CN108412133A (en) * | 2018-01-30 | 2018-08-17 | 浙江新盛建设集团有限公司 | A kind of reinforcing steel bar connecting device and its application method of self-locking prefabricated member |
| CN211395976U (en) * | 2019-09-29 | 2020-09-01 | 赵钧 | Bidirectional connecting piece for building steel structure |
-
2021
- 2021-03-29 CN CN202110329581.3A patent/CN112942687A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870626A (en) * | 1949-11-04 | 1959-01-27 | Gillberg Johannes | Reinforcing bars having depressed portions for use in concrete constructions |
| CN1723324A (en) * | 2003-01-08 | 2006-01-18 | 金龙根 | Reinforcing bar coupler |
| CN107882273A (en) * | 2017-12-26 | 2018-04-06 | 郑晓 | A kind of rapid steel reinforcing bar connector |
| CN108331259A (en) * | 2018-01-30 | 2018-07-27 | 沈阳建筑大学 | The wedge-shaped intermediate plate anchor head of major diameter high tensile reinforcement for reinforced concrete beam column node and application |
| CN108412133A (en) * | 2018-01-30 | 2018-08-17 | 浙江新盛建设集团有限公司 | A kind of reinforcing steel bar connecting device and its application method of self-locking prefabricated member |
| CN211395976U (en) * | 2019-09-29 | 2020-09-01 | 赵钧 | Bidirectional connecting piece for building steel structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119426497A (en) * | 2025-01-13 | 2025-02-14 | 南通中房建设工程集团有限公司 | A steel bar quick connection device |
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Application publication date: 20210611 |