CN215805606U - Socket joint type connecting piece adopting mushroom head-shaped deformed steel anchor bolt - Google Patents
Socket joint type connecting piece adopting mushroom head-shaped deformed steel anchor bolt Download PDFInfo
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- CN215805606U CN215805606U CN202120643712.0U CN202120643712U CN215805606U CN 215805606 U CN215805606 U CN 215805606U CN 202120643712 U CN202120643712 U CN 202120643712U CN 215805606 U CN215805606 U CN 215805606U
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- anchor bolt
- anchor
- connecting piece
- socket joint
- boss
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Abstract
The utility model discloses a socket type connecting piece adopting a mushroom-head-shaped deformed steel anchor bolt, which comprises an anchor bolt section and a connecting section, wherein the anchor bolt section comprises a plurality of strip-shaped anchor bolts, the anchor bolts are made of high-strength deformed steel, one end of each anchor bolt connected with a tunnel segment is an embedded end, one end of each anchor bolt connected with the connecting section is an embedded end, the embedded end is provided with a mushroom-head-shaped boss, the boss is cylindrical, and an oblique angle is arranged between the boss and the anchor bolt; the rear part of the connecting section is all located through the embedment to certain length and the boss of crab-bolt embedment end. The utility model has the advantages that: the installation is convenient, fast and safe, the connection force is extremely strong, the processing cost is reduced, the labor is saved, the connection is stable, and the reliability is high; the anchor bolt made of high-strength deformed steel bar has extremely high tensile strength, and the safety of the shield tunnel is effectively improved.
Description
Technical Field
The utility model relates to the technical field of shield tunnel engineering, in particular to a socket type connecting piece adopting a mushroom-head-shaped deformed steel anchor bolt.
Background
The shield tunnel segment is a main assembly component for shield construction, and a plurality of special tunnel segments are assembled to form a huge pipeline which is buried underground. Is the innermost barrier of the underground tunnel and plays a role in resisting soil layer pressure, underground water pressure and some special loads.
The shield tunnel segment is a permanent lining structure of a shield method tunnel, and the quality of the shield tunnel segment is directly related to the overall quality and safety of the tunnel, so that the waterproof performance and the durability of the tunnel are influenced. The shield tunnel segment connecting mode disclosed at present is mainly through connecting bolt connection, need through just tight and retightening, and not only the connection speed is slow, consumes the manpower moreover. The socket joint type connecting piece is a key part which is pre-buried on the end face of the duct piece and used for being quickly assembled between the duct pieces, and huge stress reaction is borne between joints of the assembled tunnel duct pieces. The rear part of the socket type connecting piece needs to be embedded with a casting anchor bolt to form a whole, the rear anchor bolt of the socket type connecting piece is accurately positioned and embedded in the end surface of the concrete segment, the common anchor bolt is directly embedded and cast or is connected with the socket type connecting piece body through threads, the tensile bearing capacity is insufficient, the socket type connecting piece body is pulled off, and the risk of safety accidents is caused.
Heretofore, we have disclosed a circumferential push-to-insert type connecting and fastening assembly for shield tunnel segments and an application thereof in patent CN 110541717a, in which a structure of T-shaped protrusions and T-shaped grooves is adopted to realize convenient connection of shield tunnel segments.
In practice, however, we have found that in the connection of the T-shaped structure, there is a large lifting space for the tensile strength of the conventional anchor bolt used. Therefore, a connecting piece structure capable of further improving the tensile strength and the alignment efficiency is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art, and provides a socket joint type connecting piece adopting a mushroom-head-shaped deformed steel anchor bolt, which comprises an anchor bolt section and a connecting section, wherein the anchor bolt section comprises a plurality of strip-shaped anchor bolts, the anchor bolts are made of high-strength deformed steel bars, one ends of the anchor bolts connected with a tunnel segment are embedded ends, one ends of the anchor bolts connected with the connecting section are embedded ends, the embedded ends are provided with mushroom-head-shaped bosses, the bosses are cylindrical, and oblique angles are arranged between the bosses and the anchor bolts; the rear part of the connecting section is all located through the embedment to certain length and the boss of crab-bolt embedment end.
Further, the linkage segment include public first connecting piece and female first connecting piece, public first connecting piece include public first base and connection dop, female first connecting piece include female first base and dop slot, the dop slot cooperate with the connection dop.
Furthermore, the connecting clamping head is cylindrical, and the clamping head inserting groove is a cylindrical groove with an opening.
Adopt above-mentioned cylindrical public female connection structure, compare T shape connection structure, it is easier to counterpoint, and the socket joint is lighter for it is more convenient to connect.
Furthermore, the outer diameter of the boss is larger than that of the anchor bolt.
Furthermore, the joint of the oblique angle and the surface of the anchor bolt is provided with an arc transition.
Further, the threads of the anchor bolt surface are male threads.
Further, the end of the boss is planar.
Furthermore, the connecting section is made of nodular cast iron.
Further, the anchor segments have a total of two anchors.
Has the advantages that: according to the shield tunnel, the mushroom-head-shaped anchor bolts made of high-strength deformed steel are adopted, the tensile strength of the socket type connecting piece and the duct piece can be greatly improved through the special structures of the protruding threads embedded in the duct piece, the anchor bolts embedded in the connecting section and the bosses, high tensile force is applied between the duct pieces, the connecting piece and the duct piece can be still ensured to be in a good connection state until the connecting piece material deforms, and the safety of the shield tunnel is effectively improved.
Realize the high-speed joint with section of jurisdiction and section of jurisdiction through public first connecting piece and female first connecting piece mode of inserting the cooperation each other. Not only simple to operate, quick safety, the power of connecting is extremely strong moreover, and processing cost descends moreover, uses manpower sparingly, connects firmly, and the reliability is high, can effectively avoid connecting bolt corrosion, fracture scheduling problem. Compared with a T-shaped connecting structure, the connecting efficiency is higher, and the inserting position is easier to find.
Drawings
FIG. 1 is a schematic view of a male connector and anchor segment of a socket connector for a threaded steel anchor bolt with a mushroom head;
FIG. 2 is a perspective view of the female connector and anchor segment;
FIG. 3 is a schematic view of the male connector mated with the female connector;
FIG. 4 is a schematic structural view of an anchor;
fig. 5 is a partially enlarged view of a portion a in fig. 4;
in the figure: 1. crab-bolt, 2, screw thread, 3, public first connecting piece, 4, female first connecting piece, 5, public first base, 6, connection dop, 7, female first base, 8, dop slot, 9, boss, 10, oblique angle, 11, circular arc transition.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1-5, a socket joint type connecting piece using mushroom head-shaped screw-thread steel anchor bolts, an anchor bolt section and a connecting section, wherein the anchor bolt section comprises two strip-shaped anchor bolts 1, the anchor bolts 1 are made of high-strength screw-thread steel, the end of each anchor bolt 1 connected with a tunnel segment is a buried end, the end of each anchor bolt connected with the connecting section is an embedded end, the embedded ends are provided with mushroom head-shaped bosses 9, the bosses 9 are cylindrical, and oblique angles 10 are arranged between the bosses 9 and the anchor bolts 1; the rear part of the connecting section is provided with a certain length of the embedded end of the anchor bolt 1 and a boss 9 through embedding casting.
In this embodiment, the linkage segment include public first connecting piece 3 and female first connecting piece 4, public first connecting piece 3 include public first base 5 and connect dop 6, female first connecting piece 4 include female first base 7 and dop slot 8, dop slot 8 cooperate with being connected dop 6. The connecting chuck 6 is cylindrical, and the chuck slot 8 is a cylindrical slot with an opening; the connecting section is made of nodular cast iron.
In this embodiment, the outer diameter of the boss 9 is larger than that of the anchor bolt 1; an arc transition 11 is arranged at the joint of the bevel 10 and the surface of the anchor bolt 1; the thread 2 on the surface of the anchor bolt 1 is a convex thread; the end of the boss 9 is a flat surface.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A socket joint type connecting piece adopting a mushroom head-shaped deformed steel bar anchor bolt is characterized by comprising an anchor bolt section and a connecting section, wherein the anchor bolt section comprises a plurality of strip-shaped anchor bolts, the anchor bolts are made of high-strength deformed steel bar materials, one ends of the anchor bolts, which are connected with a tunnel segment, are embedded ends, one ends of the anchor bolts, which are connected with the connecting section, are embedded ends, the embedded ends are provided with mushroom head-shaped bosses, the bosses are cylindrical, and oblique angles are arranged between the bosses and the anchor bolts; the rear part of the connecting section is all located through the embedment to certain length and the boss of crab-bolt embedment end.
2. The socket joint type connecting piece using the mushroom-headed screw-thread steel anchor bolt according to claim 1, wherein the connecting section comprises a male joint connecting piece and a female joint connecting piece, the male joint connecting piece comprises a male joint base and a connecting chuck, the female joint connecting piece comprises a female joint base and a chuck inserting groove, and the chuck inserting groove is matched with the connecting chuck.
3. The socket joint connector using a mushroom-headed screw-thread steel anchor bolt according to claim 2, wherein the connecting dop is cylindrical and the dop insertion groove is a cylindrical groove provided with an opening.
4. The socket joint connector of claim 1, wherein the outer diameter of the boss is larger than the outer diameter of the anchor bolt.
5. The socket joint connector of claim 1, wherein the connection between the bevel and the anchor surface is provided with a circular arc transition.
6. The female connection of claim 1, wherein said anchor surface thread is a male thread.
7. The socket joint connector using a mushroom-headed screw-steel anchor bolt as set forth in claim 1, wherein the end of the boss is a flat surface.
8. The socket joint connector of claim 1, wherein the connecting segments are made of ductile iron.
9. The socket connection of claim 1, wherein said anchor segments comprise two anchors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120643712.0U CN215805606U (en) | 2021-03-30 | 2021-03-30 | Socket joint type connecting piece adopting mushroom head-shaped deformed steel anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120643712.0U CN215805606U (en) | 2021-03-30 | 2021-03-30 | Socket joint type connecting piece adopting mushroom head-shaped deformed steel anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805606U true CN215805606U (en) | 2022-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120643712.0U Active CN215805606U (en) | 2021-03-30 | 2021-03-30 | Socket joint type connecting piece adopting mushroom head-shaped deformed steel anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805606U (en) |
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2021
- 2021-03-30 CN CN202120643712.0U patent/CN215805606U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 212200 No. 198 Ganglong Road, Yangzhong Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Zhenjiang Anhua Electric Group Co.,Ltd. Address before: 212215 No. 198 Ganglong Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee before: ZHENJIANG ANHUI ELECTRIC CO.,LTD. |