CN215442727U - Reinforcing steel bar tail end expanding end anchor - Google Patents
Reinforcing steel bar tail end expanding end anchor Download PDFInfo
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- CN215442727U CN215442727U CN202120353477.3U CN202120353477U CN215442727U CN 215442727 U CN215442727 U CN 215442727U CN 202120353477 U CN202120353477 U CN 202120353477U CN 215442727 U CN215442727 U CN 215442727U
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- sleeve
- end anchor
- expansion
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Abstract
The utility model discloses a reinforcement tail end expanding end anchor which comprises a sleeve, an expanding sleeve fixing piece and an end anchor screw, wherein the sleeve is fixedly connected with the end anchor screw; one side of the sleeve is provided with a blind hole I for connecting a reinforcing steel bar, and the other side of the sleeve is provided with a blind hole II internally provided with an internal thread structure I; an external thread structure matched with the internal thread structure I is arranged outside the end anchor screw; the expansion sleeve is axially provided with a through hole I, and the end anchor screw penetrates through the through hole I and then is sleeved on the end anchor screw; the expansion external member fixing piece is axially provided with a through hole II, an internal thread structure II matched with the external thread structure is arranged in the through hole II, and the expansion external member fixing piece is in threaded connection with the end anchor screw to fix the expansion external member between the expansion external member fixing piece and the nut end of the end anchor screw. The end anchor has a simple structure, all parts are fixed in a threaded connection mode, and the use convenience is good; the expansion kit can be selected according to actual requirements; the expansion kit is reliably fixed, and the application prospect is good.
Description
Technical Field
The utility model belongs to the technical field of building construction equipment, and relates to a reinforcing steel bar tail end expanding end anchor.
Background
The reinforcing steel bars are the necessary tensile and compressive structural members for modern buildings. The concrete part usually takes steel bars as structural strength strengthening parts, namely, an annular steel bar structure is arranged in the concrete part before prefabrication to strengthen the structure of the concrete part. To ensure the ring-shaped reinforcing steel bar structure inside the ring-shaped reinforcing steel bar is firm, the end of the reinforcing steel bar is welded or thickened to ensure that the reinforcing steel bar is covered by the ring-shaped reinforcing steel bar structure. Although the welding process is simple and the cost is low, the technical requirements on welding personnel are high, the time consumption is long, the labor is wasted, the welding quality is not stable, and the welding method is not suitable for vertical connection; the end of the steel bar is thickened, welding or end upsetting by using upsetting equipment is often needed, and time and labor are consumed.
Therefore, the development of the steel bar end expanding piece which is convenient to use and unlimited in use is of great practical significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of inconvenience in operation of thickening the end part of a reinforcing steel bar, time consumption and labor consumption in the prior art, and provides a reinforcing steel bar end part expanding piece which is good in use convenience and unlimited in use.
In order to achieve the purpose, the utility model provides the following technical scheme:
an end anchor for expanding the tail end of a reinforcing steel bar comprises a sleeve, an expanding sleeve fixing piece and an end anchor screw;
one side of the sleeve is provided with a blind hole I for connecting a reinforcing steel bar, and the other side of the sleeve is provided with a blind hole II internally provided with an internal thread structure I;
an external thread structure matched with the internal thread structure I is arranged outside the end anchor screw;
the expansion sleeve is axially provided with a through hole I, and the end anchor screw penetrates through the through hole I and then is sleeved on the expansion sleeve;
the expansion external member fixing piece is axially provided with a through hole II, an internal thread structure II matched with the external thread structure is arranged in the through hole II, and the expansion external member fixing piece is in threaded connection with the end anchor screw to fix the expansion external member between the expansion external member fixing piece and the nut end of the end anchor screw.
The steel bar tail end expanding end anchor has a simple integral structure, all parts are fixed in a threaded connection mode, the steel bar tail end expanding end anchor can be repeatedly used, the steel bar tail end expanding end anchor has the advantage of good use convenience, an expanding sleeve piece (the size of the end part is expanded) can be selected according to actual requirements, and meanwhile, the expanding sleeve piece is fixed by using the expanding sleeve piece fixing piece, so that the steel bar tail end expanding end anchor is reliable in fixing and has a great application prospect.
As a preferred technical scheme:
the projected area of the expansion sleeve in the axial direction completely covers the projected area of the end anchor screw and the sleeve in the axial direction, namely the size of the expansion sleeve is far larger than the radial size of the nut of the end anchor screw and the radial size of the sleeve.
The end anchor is an all-metal screw. The end anchor screws of the present invention are not limited to all metal screws, but plastic screws or semi-metal and semi-plastic screws may also be suitable for use in the present invention.
The end anchor comprises a blind hole I, a blind hole II and a blind hole II, wherein the blind hole I comprises a cylindrical hole and a conical hole which are coaxial and are connected with each other;
the cylinder hole is closer to the outside than the circular cone hole, and the internal diameter of the conical cone hole is the same with the internal diameter in cylinder hole and the internal diameter in circular cone hole constantly reduces to zero along keeping away from outside direction with the internal diameter in the link in circular cone hole and cylinder hole.
The end anchor with the enlarged reinforcing steel bar tail end is characterized in that the blind hole I is coaxial with the blind hole II.
An enlarged end anchor for a rebar end as described above, the rebar and sleeve being secured to one another by extrusion.
Has the advantages that:
(1) the end anchor with the enlarged tail end of the reinforcing steel bar has a simple integral structure, and all parts are fixed in a threaded connection mode, so that the end anchor can be repeatedly used and has the advantage of good use convenience;
(2) the steel bar tail end expanding end anchor can select an expanding sleeve (the size of the end part is expanded) according to actual requirements, and meanwhile, the expanding sleeve is fixed by using the expanding sleeve fixing piece, so that the steel bar tail end expanding end anchor is reliable in fixing and has a great application prospect.
Drawings
FIG. 1 is a schematic view of an enlarged end anchor at the end of a reinforcing bar of the present invention when not fully assembled;
FIG. 2 is a schematic view of the fully assembled rebar end anchor of the present invention;
FIG. 3 is a perspective view of the sleeve of the present invention after installation of reinforcement bars;
the steel bar-type expansion joint comprises a steel bar 1, a sleeve 2, an expansion sleeve fixing piece 3, an expansion sleeve 4, an end anchor screw 5, a cylindrical hole 6 and a conical hole 7.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings.
Example 1
An end anchor for the end of a steel bar comprises a sleeve 2, an expansion sleeve 4, an expansion sleeve fixing piece 3 and an end anchor screw 5 (all-metal screw), as shown in figures 1 and 2;
one side of the sleeve 2 is provided with a blind hole I for connecting the steel bar 1 (the steel bar 1 and the sleeve 2 are fixed by extrusion), and the other side is provided with a blind hole II which is internally provided with an internal thread structure I and is coaxial with the blind hole I;
as shown in fig. 3, the blind hole I includes a cylindrical hole 6 and a conical hole 7 which are coaxial and connected with each other, the cylindrical hole 6 is closer to the outside than the conical hole 7, the inner diameter of the connecting end of the conical hole 7 and the cylindrical hole 6 is the same as that of the cylindrical hole 6, and the inner diameter of the conical hole 7 is continuously reduced to zero along the direction away from the outside;
an external thread structure matched with the internal thread structure I is arranged outside the end anchor screw 5;
the expansion sleeve 4 is axially provided with a through hole I, the expansion sleeve 4 is sleeved on the end anchor screw 5 after the end anchor screw 5 penetrates through the through hole I, and the projection area of the expansion sleeve 4 in the axial direction completely covers the projection areas of the end anchor screw 5 and the sleeve 2 in the axial direction;
the expansion kit fixing part 3 is axially provided with a through hole II, an internal thread structure II matched with the external thread structure is arranged in the through hole II, and the expansion kit fixing part 3 is in threaded connection with the end anchor screw 5 to fix the expansion kit 4 so as to limit the expansion kit 4 between the nut ends of the expansion kit fixing part 3 and the end anchor screw 5.
The size of the tail end of the steel bar can be remarkably increased by the fully assembled steel bar tail end expansion end anchor, and the part can be fixed or limited by an annular structure formed by the surrounding of the steel bar.
Proved by verification, the end anchor of the steel bar end is expanded, the integral structure is simple, all parts are fixed in a threaded connection mode, and the anchor can be repeatedly used and has the advantage of good use convenience; the expansion sleeve can be selected according to actual requirements (the size of the end part can be expanded), and meanwhile, the expansion sleeve fixing piece is used for fixing the expansion sleeve, so that the fixing is reliable, and the application prospect is wide.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these embodiments are merely illustrative and various changes or modifications may be made without departing from the principles and spirit of the utility model.
Claims (6)
1. An end anchor for expanding the tail end of a reinforcing steel bar is characterized by comprising a sleeve, an expanding sleeve fixing piece and an end anchor screw;
one side of the sleeve is provided with a blind hole I for connecting a reinforcing steel bar, and the other side of the sleeve is provided with a blind hole II internally provided with an internal thread structure I;
an external thread structure matched with the internal thread structure I is arranged outside the end anchor screw;
the expansion sleeve is axially provided with a through hole I, and the end anchor screw penetrates through the through hole I and then is sleeved on the expansion sleeve;
the expansion external member fixing piece is axially provided with a through hole II, an internal thread structure II matched with the external thread structure is arranged in the through hole II, and the expansion external member fixing piece is in threaded connection with the end anchor screw to fix the expansion external member between the expansion external member fixing piece and the nut end of the end anchor screw.
2. The rebar end enlarged end anchor of claim 1, wherein a projected area of the enlarged sleeve in the axial direction completely covers a projected area of the end anchor screw and the sleeve in the axial direction.
3. The rebar end enlarged end anchor of claim 1, wherein the end anchor screw is an all-metal screw.
4. The reinforcing bar end expanding anchor according to claim 1, wherein the blind hole I comprises a cylindrical hole and a conical hole which are coaxial and connected with each other;
the cylinder hole is closer to the outside than the circular cone hole, and the internal diameter of the conical cone hole is the same with the internal diameter in cylinder hole and the internal diameter in circular cone hole constantly reduces to zero along keeping away from outside direction with the internal diameter in the link in circular cone hole and cylinder hole.
5. The rebar end enlarged anchor of claim 1, wherein the blind hole I is coaxial with the blind hole II.
6. The rebar-end enlarged end anchor of claim 1, wherein the rebar and sleeve are secured by extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120353477.3U CN215442727U (en) | 2021-02-08 | 2021-02-08 | Reinforcing steel bar tail end expanding end anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120353477.3U CN215442727U (en) | 2021-02-08 | 2021-02-08 | Reinforcing steel bar tail end expanding end anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215442727U true CN215442727U (en) | 2022-01-07 |
Family
ID=79701760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120353477.3U Active CN215442727U (en) | 2021-02-08 | 2021-02-08 | Reinforcing steel bar tail end expanding end anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215442727U (en) |
-
2021
- 2021-02-08 CN CN202120353477.3U patent/CN215442727U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215699 No.9 Fuxin Road, North District, Zhangjiagang Economic and Technological Development Zone (yangshe town), Suzhou City, Jiangsu Province Patentee after: PEC building materials (China) Co.,Ltd. Address before: 215699 No.9 Fuxin Road, North District, Zhangjiagang Economic and Technological Development Zone (yangshe town), Zhangjiagang City, Suzhou City, Jiangsu Province Patentee before: Peck construction accessories (Zhangjiagang) Co.,Ltd. |
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| CP03 | Change of name, title or address |