CN110965702A - Finish rolling screw-thread steel ground tackle - Google Patents
Finish rolling screw-thread steel ground tackle Download PDFInfo
- Publication number
- CN110965702A CN110965702A CN201910965090.0A CN201910965090A CN110965702A CN 110965702 A CN110965702 A CN 110965702A CN 201910965090 A CN201910965090 A CN 201910965090A CN 110965702 A CN110965702 A CN 110965702A
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- Prior art keywords
- clamping piece
- deformed steel
- wall
- clamping
- thread
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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
- E04C5/08—Members specially adapted to be used in prestressed constructions
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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
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Clamps And Clips (AREA)
Abstract
A finish rolling deformed steel bar anchorage device is characterized in that an anchor cup is of a structure with a taper hole, and a clamping piece is of a cone matched with the taper of the taper hole; the clamping pieces are formed by jointing at least three clamping piece bodies, the outer wall of each clamping piece body is in a wedge shape, and the joint of the adjacent clamping piece bodies is in a wave-shaped structure to form wave-shaped joint; the inner wall of the clamping piece body is a thread matched with the thread rib of the outer wall of the finish rolling deformed steel bar, so that when the clamping piece body is enclosed into a clamping piece, the thread of the inner hole of the clamping piece and the thread rib of the outer wall of the finish rolling deformed steel bar form a threaded connection structure. The clamp has the advantages that the threads on the inner wall of the clamp body are matched with the thread ribs of the finish-rolled deformed steel bar to form clamping of the finish-rolled deformed steel bar; the wave-shaped joint surface at the edge of the clamping piece body enables the clamping piece to automatically find the normal clamping position of the clamping piece in the loosening and clamping processes, and the dislocation of the clamping piece can not occur; the clamping piece is made into a wedge-shaped structure, so that automatic wedging and anchoring are facilitated; the clamping piece is made into a step structure, so that the self-installation of the spring is facilitated.
Description
Technical Field
The invention relates to a steel anchorage device in prestress construction, in particular to a finish rolling deformed steel bar anchorage device.
Background
At present, the steel anchor that adopts in the prestressing force construction, its clamping piece is three at least clamping piece body joints formation, it has the tooth to open at the internal wall of clamping piece, when the inside centre gripping of clamping piece atress, the tooth interlock steel strand of clamping piece body inner wall, implement the stretch-draw operation, the clamping piece of this kind of structure, only be applicable to the stretch-draw to steel strand, can not be used for carrying out the centre gripping to the finish rolling screw-thread steel, because the intensity of finish rolling screw-thread steel is big, and hardness is high, and the outer wall is crude screw-thread steel, the unable finish rolling screw-thread steel of centre gripping of traditional clamping piece.
Disclosure of Invention
The invention aims to provide a finish rolling deformed steel bar anchor used for clamping finish rolling deformed steel bars.
The solution of the invention is such that:
a finish rolling deformed steel bar anchorage device comprises an anchor cup, a clamping piece, a top pressure spring, a gland and finish rolling deformed steel bars, wherein the anchor cup is of a structure with a taper hole, and the clamping piece is of a cone matched with the taper of the taper hole; the clamping pieces are formed by jointing at least three clamping piece bodies, the outer wall of each clamping piece body is in a wedge shape, the joint of each clamping piece body is in a structure of a wave-shaped joint part or a fold-line-shaped joint part, and the adjacent clamping piece bodies form wave-shaped or fold-line-shaped joint when connected; the inner wall of the clamping piece body is a thread matched with the thread rib of the outer wall of the finish rolling deformed steel bar, so that when the clamping piece body is enclosed into a clamping piece, the thread of the inner hole of the clamping piece and the thread rib of the outer wall of the finish rolling deformed steel bar form a threaded connection structure.
The more specific technical scheme also comprises the following steps: the rear end of the clamping piece body is of a step structure, and when the clamping piece body is enclosed into a clamping piece, a circular step is formed at the rear end of the clamping piece; one end of the jacking spring is sleeved at the round step of the clamping piece to jack the clamping piece, and the other end of the jacking spring jacks the gland; the gland is connected with the anchor cup.
Further: the rear end of the clamping piece body is a sinking platform, and a counter bore is formed at the rear end of the clamping piece when the clamping piece body is enclosed into the clamping piece.
Further: the rear end of the clamping piece body is a conical sinking platform, and when the clamping piece body is enclosed into a clamping piece, a conical counter bore is formed at the rear end of the clamping piece.
The invention has the advantages that:
1. the threads formed on the inner wall of the clip body are matched with the thread ribs of the finish-rolled deformed steel bar to form clamping of the finish-rolled deformed steel bar, so that the finish-rolled deformed steel bar cannot be damaged;
2. by utilizing the waveform joint surface or the broken line joint surface of the edge of the clamping piece body, the normal clamping position of the clamping piece is automatically found in the loosening and clamping processes of the clamping piece, the dislocation of the clamping piece is avoided, and the clamping and tensioning backing anchor is convenient to clamp and tension during tensioning;
3. the clamping piece is made into a wedge-shaped structure, so that automatic wedging and anchoring are facilitated;
4. the clamping piece is manufactured into a step or a counter bore or is additionally provided with a guide sleeve structure, so that the self-installation of a spring is facilitated;
5. in the initial state, the jacking spring jacks the clamping piece to be matched with the wedge-shaped hole of the anchor cup, and the clamping piece clamps the finish-rolled deformed steel bar;
6. when the clamping piece does not need to be wrapped by the finish rolling deformed steel bar in a stretching or moving mode to a required position, the pressing device matched with the clamping piece presses the jacking spring to loosen the clamping piece.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Figure 2 is a schematic view of the clip 2 in a wave 2-4 joint configuration.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a top view of fig. 2.
Fig. 5 is a schematic view of the clip 2 in a dog-leg 2-4 joint configuration.
Fig. 6 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 7 is a schematic view of the clip 2 of the structure of fig. 6.
Fig. 8 is a schematic structural diagram of a third embodiment of the present invention.
Fig. 9 is a schematic view of the clip 2 of the structure of fig. 8.
The parts of the drawings are detailed as follows: the device comprises an anchor cup 1, a clamping piece 2, a top pressure spring 3, a gland 4, finish-rolled deformed steel bar 5, a guide sleeve 6, a circular step 2-1, a clamping piece body 2-2, a thread 2-3 and a wavy joint part or a fold-line joint part 2-4.
Detailed Description
As shown in fig. 1, 2, 3 and 4, the present embodiment is formed by splicing four clip bodies 2-2, the outer wall of each clip body 2-2 is wedge-shaped, the joint of each clip body is a structure of a wave joint or a fold-line joint 2-4, and the adjacent clip bodies form a wave joint or a fold-line joint when connected; the inner wall of the clamping piece body 2-2 is provided with a thread 2-3 matched with the thread rib of the outer wall of the finish rolling deformed steel bar, so that when the clamping piece body 2-2 is enclosed into a clamping piece, the thread 2-3 of the inner hole of the clamping piece and the thread rib of the outer wall of the finish rolling deformed steel bar form a thread connection structure; the clip body 2-2 is manufactured by uniformly processing four wave-shaped grooves on a circular clip blank body to form four clip bodies 2-2 with wave-shaped joint parts 2-4.
The structure shown in fig. 1 and 3 is a wave-shaped groove, so that wave-shaped joints are formed when four clamping pieces with wave-shaped joints 2-4 are connected.
The structure shown in fig. 5 is a structure that adopts a fold line groove, so that a fold line joint is formed when the clamping pieces of the four fold line-shaped joint parts 2-4 are connected.
The rear end of the clip body 2 has the following embodiments:
the first embodiment is as follows:
as shown in fig. 1, 2, 3 and 4, the back end of the clip body 2-2 is a step structure, and when the clip body 2-2 encloses the clip, a circular step 2-1 is formed at the back end of the clip.
When the anchor cup is used in the embodiment, the anchor cup 1 is of a structure with a taper hole, and the clamping piece body 2-2 is of a cone shape matched with the taper hole; one end of the jacking spring 3 is sleeved at the round step of the clamping piece to jack the clamping piece body 2-2, and the other end of the jacking spring jacks the gland 4.
In an initial state, the jacking spring 3 jacks the clamping piece body 2-2 to be matched with the wedge-shaped hole of the anchor cup 1, and the clamping piece body 2-2 clamps the finish-rolled deformed steel bar 5; when the clamping piece bodies 2-2 are not required to be wrapped with finish rolling deformed steel bars 5 when the clamping piece bodies 2-2 are stretched or moved to required positions, the anchor cup is pushed to move leftwards through the pressing device matched with the clamping piece bodies 2-2, the pressing cover 4 is driven to press the jacking spring 3, and the four clamping piece bodies 2-2 are loosened.
Example two:
as shown in fig. 6 and 7, the rear end of the clip body 2-2 is a sink table, when the clip body 2-2 encloses the clip, a counter bore 2-1-1 is formed at the rear end of the clip, one end of the top pressure spring 3 is sleeved at the counter bore at the rear end of the clip to support the clip body 2-2, and the other end supports the gland 4.
Example three:
as shown in fig. 8 and 9, the back end of the clamping piece body 2-2 is a conical sink 2-1-2, and when the clamping piece body 2-2 encloses the clamping piece, a conical sink is formed at the back end of the clamping piece.
When the clamping piece is used in the embodiment, the guide sleeve 6 needs to be connected to the rear end of the clamping piece, the front end of the guide sleeve 6 is conical and matched with the conical counter bore, the rear end of the guide sleeve is provided with a step, one end of the jacking spring 3 is sleeved at the step of the guide sleeve 6 to jack the guide sleeve 6, and the other end of the jacking spring jacks the gland 4.
Claims (4)
1. The utility model provides a finish rolling screw-thread steel ground tackle, includes anchor cup (1), clamping piece (2), roof pressure spring (3), gland (4), finish rolling screw-thread steel (5), its characterized in that: the anchor cup (1) is of a structure with a taper hole, and the clamping piece (2) is of a cone shape matched with the taper hole in a taper manner; the clamping piece (2) is formed by jointing at least three clamping piece bodies (2-2), the outer wall of each clamping piece body (2-2) is wedge-shaped, the joint of each clamping piece body is a structure of a wave joint part or a fold-line joint part (2-4), and the adjacent clamping piece bodies form wave joint or fold-line joint when connected; the inner wall of the clamping piece body (2-2) is provided with threads (2-3) matched with the thread ribs on the outer wall of the finish rolling deformed steel bar (5), so that when the clamping piece body (2-2) is enclosed into the clamping piece, the threads (2-3) of the inner hole of the clamping piece and the thread ribs on the outer wall of the finish rolling deformed steel bar (5) form a threaded connection structure.
2. The finish rolled deformed steel anchor of claim 1, wherein: the rear end of the clip body (2-2) is of a step structure, and when the clip body (2-2) encloses the clip, a round step (2-1) is formed at the rear end of the clip; one end of the jacking spring (3) is sleeved at the round step of the clamping piece to jack the clamping piece, and the other end of the jacking spring jacks the gland (4); the gland (4) is connected with the anchor cup (1).
3. The finish rolled deformed steel anchor of claim 1, wherein: the rear end of the clamping piece body (2-2) is a sunk platform, and when the clamping piece body (2-2) encloses the clamping piece, a sunk hole is formed at the rear end of the clamping piece.
4. The finish rolled deformed steel anchor of claim 1, wherein: the rear end of the clamping piece body (2-2) is a conical sinking platform, and when the clamping piece body (2-2) encloses the clamping piece, a conical counter bore is formed at the rear end of the clamping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965090.0A CN110965702A (en) | 2019-10-11 | 2019-10-11 | Finish rolling screw-thread steel ground tackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965090.0A CN110965702A (en) | 2019-10-11 | 2019-10-11 | Finish rolling screw-thread steel ground tackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110965702A true CN110965702A (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910965090.0A Pending CN110965702A (en) | 2019-10-11 | 2019-10-11 | Finish rolling screw-thread steel ground tackle |
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| Country | Link |
|---|---|
| CN (1) | CN110965702A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323272A (en) * | 2021-06-07 | 2021-08-31 | 中建二局第四建筑工程有限公司 | Clamp type steel bar anchoring plate |
-
2019
- 2019-10-11 CN CN201910965090.0A patent/CN110965702A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323272A (en) * | 2021-06-07 | 2021-08-31 | 中建二局第四建筑工程有限公司 | Clamp type steel bar anchoring plate |
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