CN210217748U - Shield segment pre-buried sleeve structure for preventing concrete from being wrapped - Google Patents
Shield segment pre-buried sleeve structure for preventing concrete from being wrapped Download PDFInfo
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- CN210217748U CN210217748U CN201921134377.0U CN201921134377U CN210217748U CN 210217748 U CN210217748 U CN 210217748U CN 201921134377 U CN201921134377 U CN 201921134377U CN 210217748 U CN210217748 U CN 210217748U
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- end cover
- sealing washer
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- buried
- embedded sleeve
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Abstract
The utility model provides a shield that prevents concrete parcel constructs section of jurisdiction pre-buried sleeve structure, including pre-buried sleeve, location end cover and seal ring, pre-buried telescopic top end face internal thread hole of formation of inwards extending, the location end cover includes the apron and establishes the screw thread section at apron lower extreme and internal thread hole looks adaptation, be equipped with the through-hole on the seal ring, the screw thread section of location end cover pass behind the seal ring with pre-buried sleeve threaded connection, seal ring is located between the apron of location end cover and pre-buried telescopic top end face, with clearance seal between the two. Can prevent through this structure that concrete slurry from permeating to location end cover and pre-buried telescopic screw tooth in, prevent that location end cover from being wrapped up by the tension, do benefit to demolising of section of jurisdiction shaping back location end cover, can not destroy the section of jurisdiction corner when just fixing a position the end cover and demolising, guarantee section of jurisdiction outward appearance integrality.
Description
Technical Field
The utility model relates to a shield tunnel construction technical field, concretely relates to prevent shield structure section of jurisdiction pre-buried sleeve structure of concrete parcel.
Background
At present, the shield construction method has a leading position in the tunnel construction fields of subway tunnels, water diversion tunnels, water supply tunnels, electric power tunnels and the like, is widely applied, and meanwhile, along with the continuous construction of a large number of tunnel projects, the construction technology is greatly improved, and various new technologies and new inventions are increasingly applied to construction.
Wherein, subway tunnel is when electromechanical professional support in later stage and evacuation platform installation, and the tradition construction is gone on with the mode of the installation of punching on the section of jurisdiction, and this kind of mode can influence the security and the durability of section of jurisdiction. Among the prior art at present, improved this mode, through set up pre-buried sleeve in order to replace traditional installation of punching when section of jurisdiction production to the structural strength of section of jurisdiction has been guaranteed.
Segment of jurisdiction producer is carrying out segment of jurisdiction production and sleeve when pre-buried, and the segment of jurisdiction that produces is because the restriction of mould and construction process, and 95% of the supporting location end cover of pre-buried sleeve all is wrapped up by the concrete, and dismantling of locating the end cover must be carried out immediately after the segment of jurisdiction drawing of patterns, just so several difficult problems appear: 1. after the duct piece is demoulded, the positioning end cover is dismantled when the concrete strength is not high, and when the positioning end cover is screwed off, the concrete at the periphery of the end cover is easily taken off, so that appearance quality problems such as unfilled corners and the like are caused; 2. after the strength of the duct piece is increased, the positioning end cover is difficult to remove due to the fact that concrete is wrapped on the surface of the positioning end cover and concrete slurry permeates into the positioning end cover and screw teeth of the embedded sleeve during vibration; 3. the top end of the positioning end cover is wrapped by the rotary cover too tightly, so that the positioning end cover is easily damaged by being twisted due to too large stress, and is difficult to take out, and even the embedded sleeve fails.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem, provide a shield constructs section of jurisdiction pre-buried sleeve structure that prevents concrete parcel, can prevent through this structure that the concrete thick liquid from permeating to location end cover and pre-buried telescopic screw tooth in, prevent that the location end cover from being wrapped up by the tension, do benefit to dismantling of section of jurisdiction shaping back location end cover, can not destroy the section of jurisdiction corner when just fixing a position the end cover and demolising, guarantee section of jurisdiction outward appearance integrality.
In order to realize the utility model discloses an aim, the technical scheme who adopts is: the utility model provides a shield that prevents concrete parcel constructs section of jurisdiction pre-buried sleeve structure, includes pre-buried sleeve, location end cover and seal ring, pre-buried sleeve's top end face inwards extends and forms the internal thread hole, the location end cover includes the apron and establishes the screw thread section at apron lower extreme and internal thread hole looks adaptation, be equipped with the through-hole on the seal ring, the screw thread section of location end cover pass behind the seal ring with pre-buried sleeve threaded connection, seal ring is located between the apron of location end cover and pre-buried sleeve's the top end face, with clearance seal between the two.
As a further improvement, the outer peripheral edge of seal ring is upwards protruding to form the seal limit for seal ring is transversal to personally submit the spill structure, seal ring passes through the outer peripheral edge parcel of seal limit with the apron.
As a further improvement, the both sides are protruding to form about seal ring's the outer peripheral edges upper and lower seal limit respectively for seal ring is the transversal H-shaped structure of personally submitting, seal ring wraps up the outer peripheral edges of apron and pre-buried telescopic top outer peripheral edges respectively through upper and lower seal limit.
As a further improvement of the utility model, the sealing washer is a rubber sealing washer.
As a further improvement of the utility model, the sealing washer is NBR nitrile rubber.
As a further improvement, the main body part of the embedded sleeve is a cylindrical rod body, the bottom end of the embedded sleeve is provided with a disc-shaped head part with a diameter larger than that of the main body part, and a radial reinforcing rib is arranged between the disc-shaped head part and the main body part.
As a further improvement of the utility model, the positioning end cover further comprises a rotary fixing column arranged on the upper end of the cover plate, and the top end surface of the rotary fixing column extends inwards to form a rotary fixing groove.
The utility model has the advantages that:
one, through set up seal ring between pre-buried sleeve and location end cover, can prevent effectively that the concrete thick liquid from permeating to location end cover and pre-buried telescopic screw tooth in, prevent that the location end cover from being wrapped up by the tension, do benefit to demolising of section of jurisdiction shaping back location end cover.
Two, owing to adopt seal ring, section of jurisdiction concrete intensity gets up the back location end cover and still can easily dismantle, and the time limit that consequently location end cover demolishs is little, and section of jurisdiction drawing of patterns back concrete intensity gets up a little, can carry out the demolishment of location end cover, and can not lead to the fact destruction to the section of jurisdiction corner, guarantees section of jurisdiction outward appearance integrality.
The disassembly process of the positioning end cover is simple and easy, great labor is not needed, the structure of the positioning end cover is not easy to damage during disassembly, the integrity of the positioning end cover can be effectively protected, and the problem that the embedded sleeve fails due to the fact that the positioning end cover is damaged during disassembly is avoided.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a schematic structural diagram according to a second embodiment;
description of the labeling: 1-pre-buried sleeve, 11-main body part, 12-internal threaded hole, 13-disc head, 14-radial reinforcing rib, 2-positioning end cover, 21-cover plate, 22-screwing column, 23-screwing groove, 24-threaded section, 3-sealing washer, 31-through hole, 32-sealing edge and 33-sealing edge.
Detailed Description
The present invention will be further described with reference to the following embodiments and accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1, a shield segment pre-buried sleeve structure for preventing concrete from being wrapped comprises a pre-buried sleeve 1, a positioning end cover 2 and a sealing washer 3. Main part 11 of embedded sleeve 1 is the cylindrical body of rod, and the top end face of embedded sleeve 1 inwards extends and forms internal thread hole 12, and embedded sleeve 1's bottom is provided with the disc head 13 that the diameter is greater than main part 11, and the equipartition has radial strengthening rib 14 between disc head 13 and the main part 11, improves embedded sleeve 1's structural strength through radial strengthening rib 14, and can prevent that embedded sleeve 1 from rotating in the section of jurisdiction, improves the security. The positioning end cap 2 comprises a cover plate 21, and screwing columns 22 and threaded sections 24 which are respectively arranged at the upper end and the lower end of the cover plate 21. The end surface of the top end of the screwing column 22 extends inwards to form a linear screwing groove 23, and the positioning end cover 2 can be screwed integrally through a linear screwdriver. The thread section 24 is matched with the internal thread hole 12 of the embedded sleeve 1, and the thread section 24 can be screwed into the internal thread hole 12. The sealing washer 3 is a rubber sealing washer 3, preferably NBR nitrile rubber, the sealing washer 3 is circular, a through hole 31 is formed in the middle of the sealing washer 3, and the outer periphery of the sealing washer 3 protrudes upwards to form a sealing edge 32, so that the cross section of the sealing washer 3 is of a concave structure. The screw thread section 24 of the positioning end cover 2 passes through the through hole 31 of the sealing washer 3 and then is in threaded connection with the embedded sleeve 1, the sealing washer 3 is located between the cover plate 21 of the positioning end cover 2 and the top end face of the embedded sleeve 1, a gap between the cover plate and the embedded sleeve is sealed, the sealing washer 3 wraps the outer peripheral edge of the cover plate 21 through the sealing edge 32, and the sealing performance can be further improved. After the duct piece is poured and demoulded, the positioning end cover 2 can be screwed off at any time, the sealing washer 3 is left in the duct piece and does not need to be taken out, and the quality and the appearance of the duct piece cannot be influenced.
Example two:
as shown in fig. 2, unlike the first embodiment: the upper sealing edge 32 and the lower sealing edge 33 are respectively formed by the upper side and the lower side of the outer periphery of the sealing washer 3 in a protruding mode, so that the cross section of the sealing washer 3 is of an H-shaped structure, and the outer periphery of the cover plate 21 and the outer periphery of the top end of the embedded sleeve 1 are respectively wrapped by the sealing washer 3 through the upper sealing edge 32 and the lower sealing edge 33. In addition, other technical features are the same as those of the first embodiment, and thus are not described herein.
In summary, the present invention has been made to practical samples according to the contents of the specification and the drawings, and after a plurality of use tests, the effect of the use tests proves that the present invention can achieve the intended purpose, and the practical value is undoubted. The above-mentioned embodiments are only used to conveniently illustrate the present invention, and are not to the limit of the present invention in any form, and any person who knows commonly in the technical field has, if not in the scope of the technical features of the present invention, utilize the present invention to make the equivalent embodiment of local change or modification, and not to break away from the technical features of the present invention, and all still belong to the technical features of the present invention.
Claims (7)
1. The utility model provides a shield that prevents concrete parcel constructs section of jurisdiction pre-buried sleeve structure, includes pre-buried sleeve and location end cover, pre-buried sleeve's top end face inwards extends and forms the internal thread hole, the location end cover includes the apron and establishes the screw thread section at apron lower extreme and internal thread hole looks adaptation, its characterized in that: the positioning end cover is characterized by further comprising a sealing washer, a through hole is formed in the sealing washer, the threaded section of the positioning end cover penetrates through the sealing washer and then is in threaded connection with the embedded sleeve, and the sealing washer is located between the cover plate of the positioning end cover and the top end face of the embedded sleeve and seals a gap between the cover plate and the embedded sleeve.
2. The shield segment embedded sleeve structure for preventing concrete from being wrapped according to claim 1, which is characterized in that: the outer periphery of the sealing washer protrudes upwards to form a sealing edge, so that the cross section of the sealing washer is of a concave structure, and the outer periphery of the cover plate is wrapped by the sealing washer through the sealing edge.
3. The shield segment embedded sleeve structure for preventing concrete from being wrapped according to claim 1, which is characterized in that: the upper sealing edge and the lower sealing edge are respectively formed on the upper side and the lower side of the outer periphery of the sealing washer, so that the cross section of the sealing washer is of an H-shaped structure, and the outer periphery of the cover plate and the outer periphery of the top end of the embedded sleeve are respectively wrapped by the upper sealing edge and the lower sealing edge of the sealing washer.
4. The shield segment embedded sleeve structure for preventing concrete from being wrapped according to claim 1, which is characterized in that: the sealing washer is a rubber sealing washer.
5. The shield segment pre-buried sleeve structure for preventing concrete from being wrapped according to claim 4, characterized in that: the sealing washer is made of NBR nitrile rubber.
6. The shield segment embedded sleeve structure for preventing concrete from being wrapped according to claim 1, which is characterized in that: the main part of embedded sleeve is the cylindrical body of rod, and the bottom is provided with the diameter and is greater than the disc head of main part, be equipped with radial strengthening rib between disc head and the main part.
7. The shield segment embedded sleeve structure for preventing concrete from being wrapped according to claim 1, which is characterized in that: the positioning end cover further comprises a screwing column arranged at the upper end of the cover plate, and the end face of the top end of the screwing column extends inwards to form a screwing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921134377.0U CN210217748U (en) | 2019-07-18 | 2019-07-18 | Shield segment pre-buried sleeve structure for preventing concrete from being wrapped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921134377.0U CN210217748U (en) | 2019-07-18 | 2019-07-18 | Shield segment pre-buried sleeve structure for preventing concrete from being wrapped |
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| Publication Number | Publication Date |
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| CN210217748U true CN210217748U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921134377.0U Active CN210217748U (en) | 2019-07-18 | 2019-07-18 | Shield segment pre-buried sleeve structure for preventing concrete from being wrapped |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092180A (en) * | 2020-09-16 | 2020-12-18 | 广州桀仕环境技术有限公司 | Concrete pre-embedded type positioning assembly and mold breaking method |
| CN112523778A (en) * | 2020-12-02 | 2021-03-19 | 广东磐龙交通环境设施工程有限公司 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
| CN112832813A (en) * | 2020-12-21 | 2021-05-25 | 江苏誉朔新材料科技有限公司 | Sliding wire connecting piece of pre-buried sleeve and mould |
-
2019
- 2019-07-18 CN CN201921134377.0U patent/CN210217748U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112092180A (en) * | 2020-09-16 | 2020-12-18 | 广州桀仕环境技术有限公司 | Concrete pre-embedded type positioning assembly and mold breaking method |
| CN112523778A (en) * | 2020-12-02 | 2021-03-19 | 广东磐龙交通环境设施工程有限公司 | Pre-buried connecting sleeve of track traffic section of jurisdiction |
| CN112832813A (en) * | 2020-12-21 | 2021-05-25 | 江苏誉朔新材料科技有限公司 | Sliding wire connecting piece of pre-buried sleeve and mould |
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