CN219529540U - Permanent protection cover for shield segment bolt end - Google Patents
Permanent protection cover for shield segment bolt end Download PDFInfo
- Publication number
- CN219529540U CN219529540U CN202222426975.3U CN202222426975U CN219529540U CN 219529540 U CN219529540 U CN 219529540U CN 202222426975 U CN202222426975 U CN 202222426975U CN 219529540 U CN219529540 U CN 219529540U
- Authority
- CN
- China
- Prior art keywords
- protective cover
- annular body
- bolt
- bolt end
- protruding block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
A permanent protective cover for a bolt end of a shield segment, comprising: the fixing seat and the outer protective cover; the fixing seat is a hollow annular body with two open ends, and the annular body is provided with an inner layer and an outer layer; the height of the inner annular body is smaller than that of the outer annular body; the outer annular body wraps the large-diameter periphery of the bolt end; the inner annular body wraps the outer periphery of the outermost small diameter of the bolt end; two ends of the outer side wall of the outer layer annular body are respectively provided with a clamping mechanism in a protruding way; the outer protective cover is a cover body with an opening at one end, and the opening end of the outer protective cover is in a two-stage step shape and is matched with the bottom of the periphery of the end head of the bolt; two ends of the inner side wall of the outer protective cover are respectively provided with a protruding structure which is buckled and fixedly connected with the clamping mechanism. The utility model is a permanent protective cover for the end head of the bolt at the joint of the shield segment, ensures that the end head of the bolt is completely surrounded, solves the problem of corrosion and rust of the bolt due to moist environment, and has simple and quick assembly mode, low cost, no need of using screw turners and simple assembly process.
Description
Technical Field
The utility model belongs to the technical field of bolt protection covers, and particularly relates to a permanent protection cover for a bolt end head of a shield segment.
Background
The shield segment is a main assembly component for shield construction, is the innermost barrier of a tunnel, and plays roles of resisting soil layer pressure, underground water pressure and some special loads. The shield segment is a permanent lining structure of the tunnel by a shield method, and the quality of the shield 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 affected.
The bolt at the joint of the shield segment refers to a connecting piece for connecting and fastening adjacent segments in the process of excavating underground space of a shield machine. The bottom of the periphery of the end head of the connecting bolt is in a two-stage step shape, the head of the connecting bolt generally comprises two protruding parts with different diameters, and a plurality of arched duct pieces can be connected into a ring shape through the connection of the bolts at the joint of the duct pieces, so that the surface of the whole tunnel is supported. Because the pipeline bolt is used underground, the environment is moist, and the bolt at the joint of the duct piece is easy to corrode and rust. When the corrosion is carried out inside the bolt, the mechanical property and the tensile strength of the bolt are affected, so the surface treatment of the bolt is important.
The connecting bolts of different shield segments are designed variously, a permanent protection cover is provided for the bolts at the joints of the shield segments, and the problem that the bolts are corroded and rusted due to moist environment is solved.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a permanent protection cover for the end head of a shield segment bolt, which can completely cover the bolt at the segment joint and prevent the bolt from being corroded and rusted due to the damp of the underground environment.
The utility model is realized in the following way:
a permanent protective cover for a bolt end of a shield segment, comprising: the fixing seat and the outer protective cover;
the fixing seat is a hollow annular body with two open ends, and the annular body is provided with an inner layer and an outer layer; the height of the inner annular body is smaller than that of the outer annular body; the outer annular body wraps the large-diameter periphery of the bolt end; the inner annular body wraps the outer periphery of the outermost small diameter of the bolt end; the inner side wall of the inner annular body is provided with a plurality of first ribs which are abutted against the small-diameter peripheral side wall of the bolt end; two ends of the outer side wall of the outer layer annular body are respectively provided with a clamping mechanism in a protruding mode;
the outer protective cover is a cover body with an opening at one end, and the opening end of the outer protective cover is in a two-stage step shape and is matched with the bottom of the periphery of the end head of the bolt; two opposite inner side walls of the outer protective cover are respectively provided with a protruding structure which is buckled and fixedly connected with the clamping mechanism of the fixing seat.
Further, the clamping mechanism comprises a first trapezoid protruding block and a second trapezoid protruding block which are arranged at intervals up and down; inclined surfaces of the first trapezoidal protruding block and the second trapezoidal protruding block are positioned on the upper surface; the length of the outward extension of the first trapezoid protruding block is smaller than that of the outward extension of the second trapezoid protruding block;
the protruding structure of the outer protective cover is trapezoid, and the inclined surface of the protruding structure is positioned on the lower surface;
when the protruding structure is pressed down, the lower surface of the protruding structure is matched with the upper surface of the first trapezoidal protruding block, the protruding structure is continuously pressed down, and the protruding structure is clamped between the first trapezoidal protruding block and the second trapezoidal protruding block to be locked.
Further, the inner and outer annular bodies are connected through a plurality of second ribs.
Further, the cross section of the outer shield is hexagonal.
Further, the outer protective cover is made of plastic.
The utility model has the advantages that: the utility model is a permanent protective cover for the end head of the bolt at the joint of the shield segment, ensures that the end head of the bolt is completely surrounded, solves the problem of corrosion and rust of the bolt due to moist environment, and has simple and quick assembly mode, low cost, no need of using screw turners and simple assembly process.
Drawings
The utility model will be further described with reference to the accompanying drawings, in conjunction with examples.
Fig. 1 is a sectional view showing a state of use of the present utility model.
Fig. 2 is a front view of the holder of the present utility model.
Fig. 3 is a top view of the fixing base of the present utility model.
Fig. 4 is a schematic perspective view of a fixing base in the present utility model.
Fig. 5 is a schematic perspective view of an outer protective cover in the present utility model.
Fig. 6 is a longitudinal sectional view of the outer protective cover in the present utility model.
Detailed Description
Referring to fig. 1 to 6, a permanent protection cover for a bolt end of a shield segment includes: a fixing seat 1 and an outer protective cover 2;
the fixing seat 1 is a hollow annular body with two open ends, and the annular body is an inner layer and an outer layer; the height of the inner annular body 11 is smaller than that of the outer annular body 12; the outer annular body 12 wraps the large-diameter periphery of the bolt end 100; the inner annular body 11 wraps the outer periphery of the bolt head 100 with the minimum diameter at the outermost part; the inner side wall of the inner layer annular body 11 is provided with a plurality of first ribs 111 which are abutted against the small-diameter peripheral side wall of the bolt head 100; two ends of the outer side wall of the outer annular body 12 are respectively provided with a clamping mechanism 13 in a protruding mode. The inner annular body 11 and the outer annular body 12 are connected by a plurality of second ribs 121.
The outer protective cover 2 is a cover body with one end open, the open end of the outer protective cover is in a two-stage step shape and is matched with the bottom of the periphery of the bolt end 100; two opposite inner side walls of the outer protective cover 2 are respectively provided with a protruding structure 21 which is buckled and fixedly connected with the clamping mechanism 13 of the fixed seat 1.
The clamping mechanism 13 comprises a first trapezoidal protruding block 131 and a second trapezoidal protruding block 132 which are arranged at intervals up and down; the inclined surfaces of the first trapezoidal bump 131 and the second trapezoidal bump 132 are both positioned on the upper surface; the first trapezoidal bump 131 extends outwardly a length smaller than the second trapezoidal bump 132.
The protruding structure 21 of the outer protective cover 2 is trapezoid, and the inclined surface of the protruding structure is positioned on the lower surface;
when the protruding structure 21 of the outer protective cover 2 is buckled with the clamping mechanism 13, the lower surface of the protruding structure 21 is matched with the upper surface of the first trapezoidal convex block 131 when the protruding structure 21 is pressed down, the protruding structure 21 is continuously pressed down, and the protruding structure 21 is clamped between the first trapezoidal convex block 131 and the second trapezoidal convex block 132 to be locked.
In this embodiment, the cross section of the outer protective cover 2 is hexagonal, but may be circular or other shapes in specific practice. The outer protective cover 2 is made of plastic.
The utility model is a permanent protective cover for the end head of the bolt at the joint of the shield segment, ensures that the end head of the bolt is completely surrounded, solves the problem of corrosion and rust of the bolt due to moist environment, and has simple and quick assembly mode, low cost, no need of using screw turners and simple assembly process.
The above-described embodiments and drawings are not intended to limit the form or pattern of the present utility model, and any appropriate changes or modifications may be made by those skilled in the art without departing from the scope of the present utility model.
Claims (5)
1. The utility model provides a shield constructs permanent safety cover of section of jurisdiction bolt end which characterized in that: comprising the following steps: the fixing seat and the outer protective cover;
the fixing base is a hollow annular body with two open ends, the annular body is an inner layer and an outer layer, and the fixing base comprises: an inner annular body and an outer annular body; the height of the inner annular body is smaller than that of the outer annular body; the outer annular body wraps the large-diameter periphery of the bolt end; the inner annular body wraps the outer periphery of the outermost small diameter of the bolt end; the inner side wall of the inner annular body is provided with a plurality of first ribs which are abutted against the small-diameter peripheral side wall of the bolt end; two ends of the outer side wall of the outer layer annular body are respectively provided with a clamping mechanism in a protruding mode;
the outer protective cover is a cover body with an opening at one end, and the opening end of the outer protective cover is in a two-stage step shape and is matched with the bottom of the periphery of the end head of the bolt; two opposite inner side walls of the outer protective cover are respectively provided with a protruding structure which is buckled and fixedly connected with the clamping mechanism of the fixing seat.
2. The permanent protective cover for the bolt end of the shield segment according to claim 1, wherein: the clamping mechanism comprises a first trapezoidal protruding block and a second trapezoidal protruding block which are arranged at intervals up and down; inclined surfaces of the first trapezoidal protruding block and the second trapezoidal protruding block are positioned on the upper surface; the length of the outward extension of the first trapezoid protruding block is smaller than that of the outward extension of the second trapezoid protruding block;
the protruding structure of the outer protective cover is trapezoid, and the inclined surface of the protruding structure is positioned on the lower surface;
when the protruding structure is pressed down, the lower surface of the protruding structure is matched with the upper surface of the first trapezoidal protruding block, the protruding structure is continuously pressed down, and the protruding structure is clamped between the first trapezoidal protruding block and the second trapezoidal protruding block to be locked.
3. The permanent protective cover for the bolt end of the shield segment according to claim 1, wherein: the inner layer and the outer layer of annular bodies are connected through a plurality of second ribs.
4. The permanent protective cover for the bolt end of the shield segment according to claim 1, wherein: the cross section of the outer protective cover is hexagonal.
5. The permanent protective cover for the bolt end of the shield segment according to claim 1, wherein: the outer protective cover is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222426975.3U CN219529540U (en) | 2022-09-14 | 2022-09-14 | Permanent protection cover for shield segment bolt end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222426975.3U CN219529540U (en) | 2022-09-14 | 2022-09-14 | Permanent protection cover for shield segment bolt end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529540U true CN219529540U (en) | 2023-08-15 |
Family
ID=87587479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222426975.3U Active CN219529540U (en) | 2022-09-14 | 2022-09-14 | Permanent protection cover for shield segment bolt end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529540U (en) |
-
2022
- 2022-09-14 CN CN202222426975.3U patent/CN219529540U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102345774A (en) | Low-pressure sealing pipe joint | |
| KR20130084721A (en) | Supporter for protecting pipe line of ship | |
| CN219529540U (en) | Permanent protection cover for shield segment bolt end | |
| JP4363565B2 (en) | Flange joint for valve pit | |
| KR200390447Y1 (en) | Ball clip joint structure for large size drain pipe connect | |
| CN210661817U (en) | Flange type expansion joint | |
| CN212319073U (en) | Flared seamless joint with composite ring | |
| CN212479100U (en) | Coiled tubing limit curved ware | |
| JP3171690U (en) | Stainless steel pipe joints for underground use | |
| CN211259911U (en) | Petroleum pipeline sealing device | |
| CN210106787U (en) | Novel steel-plastic adapter | |
| KR200242207Y1 (en) | Bellows type expansion pipe joint | |
| CN208589764U (en) | A kind of bracing means avoiding tieing damage among cable | |
| KR200374250Y1 (en) | KP mechanical joint for preventive separarion with metallic spike type rubber gasket | |
| KR100531977B1 (en) | A threefolded-drain pipe which was combined by Flange | |
| CN213089123U (en) | Joint assembly of HDPE double-wall corrugated pipe | |
| KR100550294B1 (en) | Flexible pipe for sewerage | |
| KR200435090Y1 (en) | Pipe escape guard for cast iron pipe mechanical joint | |
| CN211145587U (en) | Outer wall natural gas pipeline mounting structure | |
| CN216180140U (en) | Auxiliary mounting chuck for nodular cast iron pipe | |
| CN220957211U (en) | Double-wall double-high-rib reinforced corrugated pipe | |
| CN220061020U (en) | Construction pipe orifice plugging device for hydropower embedded pipe of building | |
| CN210800449U (en) | Device for enhancing rigidity of HDPE (high-density polyethylene) pipe ring | |
| CN216046184U (en) | PE electric smelting sleeve protection device | |
| KR101057166B1 (en) | Multi-Purpose Tubing Connection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |