CN113062751B - Conical buckle self-locking type shield segment connecting device - Google Patents
Conical buckle self-locking type shield segment connecting device Download PDFInfo
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- CN113062751B CN113062751B CN202110457022.0A CN202110457022A CN113062751B CN 113062751 B CN113062751 B CN 113062751B CN 202110457022 A CN202110457022 A CN 202110457022A CN 113062751 B CN113062751 B CN 113062751B
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- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a conical buckle self-locking shield segment connecting device which is used for realizing the stable connection between adjacent segments and comprises a cylindrical nut piece with internal threads, a conical connecting piece and a self-locking sleeve piece, wherein the cylindrical nut piece is poured in a mounting hole of one side of a shield segment, the self-locking sleeve piece is poured in the mounting hole of the other side of the shield segment, the conical connecting piece consists of a conical head part and a connecting tail part which are integrally formed, the connecting tail part is matched with the internal threads of the nut piece through surface threads, and the conical head part is inserted into the self-locking sleeve piece and is clamped and fixed through a plurality of groups of telescopic buckle structures. Compared with the prior art, the invention has the advantages of simple structure, convenient installation, high connection reliability and the like.
Description
Technical Field
The invention relates to the technical field of shield segment splicing, in particular to a conical buckle self-locking type shield segment connecting device.
Background
In recent years, with the increasing severity of urban traffic congestion, more and more cities are gradually building new underground urban rail transit projects. The shield method is widely used due to its remarkable advantages: construction is carried out under the protection of a shield, so that the safety factor of construction is greatly improved; the vibration and noise caused by construction are less harmful to the environment. The assembling of the shield segments is a key step in construction, and the pursuit of perfect, efficient and reliable shield segment connection technology becomes an overall target for improving the construction progress according to the target of rapid construction of the shield tunnel.
In the construction of the existing shield tunnel, the arc-shaped bolt is usually used for connecting shield segments, but has the defects of easy deformation, large damage to the shield segments, inconvenience in installation and manufacture and the like. Many quick plug connectors have been developed and designed abroad, but in the whole application process of the quick plug connector, under the influence of external loads in earthquake disasters or other external loads, the connection of the connecting plug is easy to loosen, gaps can be formed between pipe rings, and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a conical buckle self-locking type shield segment connecting device.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a toper buckle is from locking-type shield constructs section of jurisdiction connecting device for realize the firm connection between the adjacent section of jurisdiction, the device has internal screw thread cylindric nut spare, toper connecting piece and pours the auto-lock cover barrel spare in the mounting hole of opposite side shield section of jurisdiction including pouring in the mounting hole of one side shield section of jurisdiction, the toper connecting piece constitute by integrated into one piece's toper head and connection afterbody, the connection afterbody cooperate through the internal thread on surperficial screw thread and nut spare, toper head insert in the auto-lock cover barrel spare and carry out the joint through multiunit retractable buckle structure and fix.
Preferably, auto-lock cover section of thick bamboo piece include toper holding tank and multilayer along circumference install the retractable buckle structure in the buckle mounting groove on the toper holding tank lateral wall, every retractable buckle structure comprises auto-lock buckle and reset spring.
Preferably, the conical head of the conical connecting piece is composed of a conical surface matched with the conical accommodating groove in shape and a plurality of layers of annular grooves formed in the surface of the conical surface, and each layer of annular groove is matched and clamped with each corresponding layer of telescopic buckling structure after being installed.
The device is when connecting, pour into a mould respectively in adjacent two adjacent shield segments of jurisdiction with nut spare and auto-lock cover sleeve spare in advance, the external screw thread that the toper connecting piece passes through the connection afterbody inserts the nut spare and connects, after the mounting hole centering, insert the toper head of toper connecting piece gradually in the toper holding tank of auto-lock cover sleeve spare, in the insertion process, the auto-lock buckle compresses reset spring to buckle mounting groove under the extrusion of conical surface in, realize resetting until all auto-lock buckles in the ring channel that corresponds, make two adjacent shield segments of jurisdiction realize the laminating and connect.
Preferably, the width of the annular groove is larger than the thickness of the self-locking buckle, and the depth of the annular groove is smaller than the position of the self-locking buckle when the self-locking buckle is reset.
Preferably, each layer of retractable snap structures is evenly distributed along the circumferential direction.
Preferably, when the conical head of the conical connecting piece is not inserted into the conical accommodating groove, the distance from the inner surface of the self-locking buckle of each layer of the retractable buckle structure to the axis is gradually reduced from outside to inside, so that the outer self-locking buckle is not clamped with the annular groove of the inner layer when the conical head of the conical connecting piece is inserted into the conical accommodating groove.
Preferably, the inner surface of the self-locking buckle of each layer of the retractable buckle structure is provided with an inclined surface, and the angle of the inclined surface is the same as that of the surface of the conical surface.
Preferably, the number of the telescopic buckling structures is 1-4, and 2-8 telescopic buckling structures are arranged on each layer along the circumferential direction.
Preferably, a plurality of annular bosses are arranged on the outer surfaces of the nut member and the self-locking sleeve member.
Compared with the prior art, the invention has the following advantages:
the device has the advantages of simple structure and convenience in installation: the locking of the self-locking device is mainly realized by clamping the self-locking buckle and the reset spring, the compression and the automatic reset at the annular groove on the self-locking device can be realized under the extrusion of the conical surface, the self-locking is realized, the locking is realized without an excessive structure, the self-locking device can be directly inserted after the mounting hole is centered, and the manual operation is not needed.
Secondly, the connection reliability is high: the telescopic buckle structure can uniformly arrange a plurality of groups at the circumference of the section of the conical surface, a plurality of layers are axially arranged on the conical connecting piece, the reliability of connection is ensured under the combined action of the plurality of layers and the groups, and permanent locking can be realized after one-time installation.
Drawings
Fig. 1 is a schematic diagram of the connection principle of the present invention.
Fig. 2 is a schematic structural view of the nut member.
Fig. 3 is a schematic view of a conical connector structure.
Fig. 4a is a cross-sectional view of a self-locking sleeve member construction.
Fig. 4b is a front view of the self-locking sleeve member.
Fig. 4c is a schematic view of the self-locking sleeve member.
Fig. 5 is a schematic view of the positions of the nut member, the conical connecting member and the self-locking sleeve member before the installation of the present invention.
FIG. 6 is a schematic view of the centering of the mounting holes after the tapered connecting member is engaged with the nut member when the present invention is installed.
Fig. 7 is a schematic sectional view of a telescopic fastening structure compressed when the tapered connecting piece is inserted into the tapered receiving groove during installation of the present invention.
Fig. 8a is a schematic structural view of the present invention when the installation is completed.
Fig. 8b is a schematic sectional view showing the structural positions of the components of the present invention when the installation is completed.
The notation in the figure is:
1. nut spare, 2, toper connecting piece, 201, ring channel, 202, conical surface, 203, connection tail, 3, auto-lock sleeve part, 301, auto-lock buckle, 302, reset spring, 303, toper holding tank, 4, mounting hole, 5, shield constructs the section of jurisdiction.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1-4, the invention provides a conical buckle self-locking shield segment connecting device, comprising a nut member 1, a conical connecting member 2 and a self-locking sleeve member 3, wherein the conical connecting member 2 is composed of a conical surface 202, an annular groove 201 and a connecting tail portion 203, the conical surface 202 is provided with two circles of the annular groove 201, the connecting tail portion 203 is provided with a bolt head for matching with the internal thread of the nut member 1, the self-locking sleeve member 3 is composed of a conical accommodating groove 303, a self-locking buckle 301 and a return spring 302, the self-locking buckle 301 and the return spring 302 of the self-locking sleeve member 3 form a double-layer four-group telescopic buckle structure fixed in the mounting groove on the side wall of the conical accommodating groove 303, when in connection, the nut member 1 and the self-locking sleeve member 3 are respectively poured in advance into two adjacent shield segments 5, the conical connecting member 2 is connected with the nut member 1 through threads, the conical connecting member 2 is inserted into the self-locking sleeve member 3 after the mounting hole 4 is centered, the retractable buckle structure is compressed under the extrusion of the conical surface 202, and is continuously inserted until all the self-locking buckles 301 reset in the corresponding annular grooves 201, so that the two shield segments 5 are attached to realize connection.
In this embodiment, the concrete installation process of connecting and installing the adjacent shield segments 5 by using the tapered buckle self-locking shield segment connecting device is as follows:
1. the nut piece 1 and the self-locking sleeve piece 3 are respectively poured into the mounting holes 4 of two adjacent shield segments 5 in advance, as shown in fig. 5;
2. the connection tail portion 203 of the tapered connection member 2 is screwed to the nut member 1 as shown in fig. 6;
3. after the mounting holes 4 are centered, the hydraulic cylinder is adopted to push the shield segment 5 to be mounted, so that the conical connecting piece 2 is inserted into the self-locking sleeve piece 3 and is continuously pushed, the telescopic buckle structure is compressed under the extrusion of the conical surface 202, as shown in fig. 7, the telescopic buckle structure is continuously inserted until all the self-locking buckles 301 are reset and clamped in the annular groove 201, and the mounting is completed, as shown in fig. 8a and 8 b.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A conical buckle self-locking shield segment connecting device is used for realizing stable connection between adjacent segments and is characterized by comprising a cylindrical nut piece (1) with an internal thread, a conical connecting piece (2) and a self-locking sleeve piece (3) which are poured in a mounting hole of a shield segment on one side, wherein the cylindrical nut piece (1) is poured in the mounting hole of the shield segment on one side, the self-locking sleeve piece (3) is poured in the mounting hole of the shield segment on the other side, the conical connecting piece (2) consists of a conical head part and a connecting tail part (203) which are integrally formed, the connecting tail part (203) is matched with the internal thread of the nut piece (1) through a surface thread, the conical head part is inserted into the self-locking sleeve piece (3) and is clamped and fixed through a plurality of groups of telescopic buckle structures, the self-locking sleeve piece (3) comprises a conical accommodating groove (303) and a plurality of telescopic buckle structures which are circumferentially arranged in buckle mounting grooves on the side wall of the conical accommodating groove (303), each retractable buckle structure consists of a self-locking buckle (301) and a reset spring (302), the conical head of each conical connecting piece (2) consists of a conical surface (202) matched with the conical accommodating groove (303) in shape and a plurality of layers of annular grooves (201) formed in the surface of the conical surface (202), each layer of annular groove (201) is matched and clamped with each corresponding layer of retractable buckle structure after installation, when the conical head of each conical connecting piece (2) is not inserted into the conical accommodating groove (303), the distance from the inner surface of the self-locking buckle (301) to the axis of each layer of retractable buckle structure is gradually reduced from outside to inside, so that the conical head of each conical connecting piece (2) is inserted into the conical accommodating groove (303), the outer layer of self-locking buckle (301) is not clamped with the inner layer of annular groove (201), the inner surface of the self-locking buckle (301) of each layer of retractable buckle structure is provided with an inclined surface, the angle of the inclined surface is the same as the angle of the surface of the conical surface (202);
the device is when connecting, pour nut spare (1) and auto-lock cover sleeve part (3) respectively in advance in adjacent two shield constructs section of jurisdiction (5), toper connecting piece (2) are connected through the external screw thread of connecting afterbody (203) insert nut spare (1), after mounting hole (4) centering, insert the toper head of toper connecting piece (2) gradually in toper holding tank (303) of auto-lock cover sleeve part (3), at the insertion-in process, auto-lock buckle (301) compress reset spring (302) to buckle mounting groove under the extrusion of conical surface (202), realize restoring to the throne in corresponding ring channel (201) until all auto-lock buckles (301), make two adjacent shield construct section of jurisdiction (5) realize laminating and connect.
2. The self-locking shield segment connecting device with the conical buckle as claimed in claim 1, wherein the width of the annular groove (201) is larger than the thickness of the self-locking buckle (301), and the depth of the annular groove is smaller than the position of the self-locking buckle (301) when the self-locking buckle is reset.
3. The tapered buckle self-locking type shield segment connecting device according to claim 1, wherein each layer of retractable buckle structures are uniformly distributed along the circumferential direction.
4. The conical buckle self-locking type shield segment connecting device according to claim 1, wherein 1-4 layers of telescopic buckle structures are provided, and 2-8 telescopic buckle structures are provided on each layer along the circumferential direction.
5. The tapered buckle self-locking shield segment connecting device according to claim 1, wherein a plurality of annular bosses are arranged on the outer surfaces of the nut member (1) and the self-locking sleeve member (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110457022.0A CN113062751B (en) | 2021-04-27 | 2021-04-27 | Conical buckle self-locking type shield segment connecting device |
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CN202110457022.0A CN113062751B (en) | 2021-04-27 | 2021-04-27 | Conical buckle self-locking type shield segment connecting device |
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CN113062751A CN113062751A (en) | 2021-07-02 |
CN113062751B true CN113062751B (en) | 2022-07-05 |
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CN202110457022.0A Active CN113062751B (en) | 2021-04-27 | 2021-04-27 | Conical buckle self-locking type shield segment connecting device |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105822323A (en) * | 2016-05-03 | 2016-08-03 | 西南交通大学 | Tunnel pipe section lining structure formed by annularly and alternatively splicing octagonal and quadrilateral pipe sections |
CN106939792A (en) * | 2017-03-13 | 2017-07-11 | 上海隧道工程有限公司 | Section of jurisdiction interannular jointing and the method using its connection |
CN106968688A (en) * | 2017-04-05 | 2017-07-21 | 宁波大学 | A kind of shield tunnel is combined tunnel segment structure and shield tunnel liner |
CN210217770U (en) * | 2019-07-19 | 2020-03-31 | 衡水益通管业股份有限公司 | Duct piece capable of being assembled quickly |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11229784A (en) * | 1998-02-16 | 1999-08-24 | Minoru Yamamoto | Joint fitting for constructing member |
KR101776589B1 (en) * | 2015-12-24 | 2017-09-08 | 주식회사 케이씨산업 | Coupling device capable of precise assembly and disassembling, segment for tunnel and method of disassembling by the same |
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2021
- 2021-04-27 CN CN202110457022.0A patent/CN113062751B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105822323A (en) * | 2016-05-03 | 2016-08-03 | 西南交通大学 | Tunnel pipe section lining structure formed by annularly and alternatively splicing octagonal and quadrilateral pipe sections |
CN106939792A (en) * | 2017-03-13 | 2017-07-11 | 上海隧道工程有限公司 | Section of jurisdiction interannular jointing and the method using its connection |
CN106968688A (en) * | 2017-04-05 | 2017-07-21 | 宁波大学 | A kind of shield tunnel is combined tunnel segment structure and shield tunnel liner |
CN210217770U (en) * | 2019-07-19 | 2020-03-31 | 衡水益通管业股份有限公司 | Duct piece capable of being assembled quickly |
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