CN217999605U

CN217999605U - Positioning and pre-embedding device for shield segment reserved bolt hole

Info

Publication number: CN217999605U
Application number: CN202222344618.2U
Authority: CN
Inventors: 樊蓉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-09
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses a location pre-buried device that is used for shield to construct section of jurisdiction reserved bolt hole, including location pre-buried sleeve pipe and location mount pad. The positioning embedded sleeve comprises a positioning pipe, a flange and an embedded pipe; the positioning pipe is provided with a connecting mechanism; the connecting mechanism is two hooks which are centrosymmetrically and outwards protruded along the radial direction on the outer peripheral surface of the tail end of the positioning pipe, or the connecting mechanism comprises a plurality of hooks which are uniformly and outwards protruded along the radial direction on the outer peripheral surface of the tail end of the positioning pipe and a plurality of notches which are axially cut between every two adjacent hooks, or the connecting mechanism is an external thread on the positioning pipe; a through hole is formed in the axis of the positioning mounting seat, and the positioning mounting seat is fixed in a mounting hole reserved on the segment mould base plate; the positioning pipe for positioning the embedded sleeve is inserted into the through hole of the positioning mounting seat from the upper part of the segment mould bottom plate and then is fixed on the positioning mounting seat through the connecting mechanism. The utility model discloses can lift the life of pipe piece mould to can improve the fixed strength of location buried sleeve.

Description

Positioning and pre-embedding device for shield segment reserved bolt hole

Technical Field

The utility model relates to an underground shield tunnel section of jurisdiction prefabricated field, concretely relates to location pre-buried device that is used for shield to construct section of jurisdiction reservation bolt hole.

Background

In the production process of shield tunnel segments, if a screwed positioning embedded sleeve (see patent number CN 202023194966.3) is adopted, firstly, mounting holes are drilled on a segment mold bottom plate, and then internal threads are tapped. Because the material of section of jurisdiction mould bottom plate is ordinary carbon steel, this section of jurisdiction mould bottom plate's intensity is limited, and the section of jurisdiction mould needs used repeatedly fifteen hundred times, and internal thread fragile when the pre-buried sleeve pipe of section of jurisdiction mould bottom plate's internal thread mounting hole installation spiro union formula location, this not only influences the prefabricated efficiency of section of jurisdiction, but also influences section of jurisdiction mould's life. And the bottom plate of the cambered segment mould is easy to leak slurry,

when a snap-in positioning embedded sleeve (see patent number CN 202023194966.3) is adopted, an installation hole needs to be drilled on a bottom plate of a segment mould. In the later stage of shield tunnel construction, namely when the pre-buried pipe is reamed by using a percussion drill in the electromechanical equipment installation process, the positioning pre-buried sleeve is required to be made of plastic with certain hardness and brittleness only, so that the buckle is easy to break when the outer diameter of the contracted buckle of the buckle positioning pre-buried sleeve is inserted into the mounting hole of the segment mold bottom plate; in addition, because section of jurisdiction mould bottom plate is the arc for the joint strength of buckle formula location buried sleeve and section of jurisdiction mould bottom plate is not enough, when pouring cement mortar in to the section of jurisdiction mould and vibrating, buckle formula location buried sleeve can take place the displacement, influences buckle formula location buried sleeve's pre-buried quality.

Disclosure of Invention

An object of the utility model is to provide a location pre-buried device for shield constructs section of jurisdiction reservation bolt hole, it can lift the life of pipe die by a wide margin to can improve location pre-buried sheathed tube fixed strength, promote pre-buried pipe pre-buried success rate and pre-buried quality on the section of jurisdiction.

The technical scheme for realizing the purpose is as follows: a positioning and pre-burying device for a shield segment reserved bolt hole is arranged on a segment die base plate and comprises a positioning and pre-burying sleeve and a positioning mounting seat; wherein the content of the first and second substances,

the positioning embedded sleeve is made of plastic and comprises a positioning pipe and an embedded pipe; a flange is arranged between the upper end of the positioning pipe and the lower end of the embedded pipe; the positioning pipe is provided with a connecting mechanism;

a through hole is formed in the axis of the positioning mounting seat, and the positioning mounting seat is inserted into a mounting hole reserved on the segment mould base plate and then fixed on the segment mould base plate;

and the positioning pipe of the positioning embedded sleeve is inserted into the through hole of the positioning mounting seat from the upper part of the duct piece mold bottom plate and then is fixed on the positioning mounting seat through a connecting mechanism.

In the positioning and pre-embedding device for the shield segment reserved bolt hole, the connecting mechanism arranged on the positioning tube is two hooks which are centrally, symmetrically and radially and outwards protruded on the outer peripheral surface of the tail end of the positioning tube, and the outer ends of the two hooks are positioned on the same circle; the shape of the through hole of the positioning installation seat is matched with the shape of the cross section of the tail end of the positioning pipe, so that the positioning pipe is inserted into the through hole of the positioning installation seat from the upper part of the duct piece mold bottom plate and then rotates by 90 degrees, and the two clamping hooks are hooked on the lower end face of the positioning installation seat.

The positioning and pre-embedding device for the shield segment reserved bolt hole is characterized in that the connecting mechanism arranged on the positioning pipe comprises a plurality of clamping hooks which are uniformly distributed on the outer peripheral surface of the tail end of the positioning pipe and protrude outwards in the radial direction, and a plurality of notches which are axially cut between every two adjacent clamping hooks, and the outer ends of the plurality of clamping hooks are all positioned on the same circle; the diameter of the through hole of the positioning installation seat is larger than the outer diameter of the positioning pipe and the diameter of the circle where the outer end of the clamping hook is located, so that the positioning pipe is inserted into the upper portion of the duct piece die base plate after being reduced through a plurality of gaps, and the plurality of clamping hooks are hooked on the lower end face of the positioning installation seat by using the elasticity of plastics after the through hole of the positioning installation seat.

The positioning and pre-embedding device for the shield segment reserved bolt hole is characterized in that a connecting mechanism arranged on the positioning pipe is an external thread arranged on the positioning pipe; the through hole of the positioning installation seat is provided with internal threads, so that the positioning pipe is screwed into the through hole of the positioning installation seat from the upper part of the segment mould base plate and then fixed on the positioning installation seat.

The positioning and pre-embedding device for the shield segment reserved bolt hole is characterized in that a self-cutting notch is formed in the upper end of the positioning pipe of the positioning and pre-embedding sleeve; the self-incision is composed of a front incision, a rear incision, a left incision and a right incision which are respectively cut inwards in the front, the rear, the left and the right of the outer surface of the upper end of the positioning pipe, and the front incision, the rear incision, the left incision and the right incision are all located on the same circle.

The positioning and embedding device for the shield segment reserved bolt hole is characterized in that the positioning and embedding device comprises a base and an inserting pipe which integrally extends from the upper end surface of the base and coaxially extends out, and the outer surface of the inserting pipe is a smooth cylindrical surface; the inserting pipe of the positioning installation seat is inserted into the installation hole reserved in the segment mould base plate from the lower portion of the segment mould base plate, so that the base is left on the lower end face of the segment mould base plate, and the base is fixed on the segment mould base plate through welding.

The positioning and embedding device for the shield segment reserved bolt hole comprises a positioning and embedding base, a positioning and embedding device and a positioning and embedding device, wherein the positioning and embedding base comprises a base and an inserting pipe which integrally extends from the upper end surface of the base and coaxially extends out, and external threads are arranged on the outer surface of the inserting pipe; an internal thread is arranged in a mounting hole reserved in the segment mould bottom plate; the inserting pipe of the positioning installation seat is screwed into the installation hole reserved on the segment mould base plate from the lower part of the segment mould base plate, so that the base is left on the lower end face of the segment mould base plate.

The positioning and embedding device for the shield segment reserved bolt hole is characterized in that the positioning and embedding seat is a straight pipe with the outer diameter matched with the inner diameter of a reserved mounting hole in the segment mold base plate, and the positioning and embedding seat is inserted into the reserved mounting hole in the segment mold base plate and then fixed on the segment mold base plate through welding.

The positioning and embedding device for the shield segment reserved bolt hole is characterized in that the positioning and installing seat is a straight pipe provided with external threads; the mounting hole reserved on the segment mould base plate is provided with internal threads, so that the positioning mounting seat is screwed into the mounting hole reserved on the segment mould base plate and then fixed on the segment mould base plate.

The positioning and pre-embedding device for the shield segment reserved bolt hole is characterized in that the upper end of a pre-embedded pipe of the positioning and pre-embedding sleeve is closed, and an anti-falling structure is arranged on the outer surface of the pre-embedded pipe; the inner cavity of the positioning embedded sleeve is in a regular polygon shape or a circular shape.

The utility model discloses a location pre-buried device for shield constructs section of jurisdiction reservation bolt hole has following characteristics:

1) The positioning mounting seat convenient to detach is additionally arranged in a mounting hole reserved on the segment mould base plate, and the connecting mechanism is arranged on the positioning pipe of the positioning embedded sleeve, so that the positioning embedded sleeve is directly mounted on the positioning mounting seat through the connecting mechanism and does not contact with the segment mould base plate. Compared with the installation hole matched with the positioning embedded pipe is processed on the bottom plate of the segment mould, the positioning installation seat is easier to process and convenient to replace when the positioning installation seat is damaged, the service life of the segment mould is greatly prolonged,

2) The first to sixth positioning and mounting bases with bases are additionally arranged in the mounting holes reserved on the segment mould bottom plate, so that the length of a plurality of clamping hooks on the second positioning embedded sleeve is doubled (about 15 mm), and the probability that the clamping hooks are easily broken in the process of being inserted into through holes of the positioning mounting bases after diameter reduction is reduced;

3) The first to twelfth positioning installation bases with bases are additionally arranged in the installation holes reserved on the segment mould bottom plate, so that the contact surfaces of the hooks of the first positioning embedded sleeve and the second positioning embedded sleeve and the positioning installation bases are both flat surfaces, and the fixing strength of the first positioning embedded sleeve and the second positioning embedded sleeve is improved;

4) The first positioning embedded sleeve of the utility model, because the through hole of the positioning mounting seat is not needed to be inserted through the reducing, fundamentally solves the problems that the prior buckle type positioning embedded sleeve has high breakage rate, unsuccessful embedding, loose fixation, and incapability of ensuring the vertical of the reserved hole on the segment and the curved surface of the segment in the installation process;

5) A soft rubber gasket is added between the positioning embedded sleeve and the bottom plate of the duct piece mold, so that the phenomenon that mortar flows into a threaded through hole of the positioning mounting seat to pollute an internal thread when grouting and vibrating are carried out in the duct piece mold is eliminated.

Drawings

Fig. 1 is a schematic structural view of a positioning and embedding device for shield segment reserved bolt holes of the present invention;

fig. 2 is a schematic structural view of another positioning and embedding device for shield segment reserved bolt holes of the present invention;

fig. 3 is an axial sectional view of a first positioning pre-buried sleeve of the present invention;

FIGS. 3a and 3b are a left side view and a right side view of FIG. 3, in a one-to-one correspondence;

FIGS. 3C, 3d and 3e are views A-A, B-B and C-C of FIG. 3, respectively;

fig. 4 is an axial cross-sectional view of a second positioning pre-buried sleeve of the present invention;

FIGS. 4a and 4b are a left side view and a right side view of FIG. 4, in a one-to-one correspondence;

FIGS. 4c and 4D are views D-D and E-E of FIG. 4, one for one;

fig. 5 is an axial sectional view of a third positioning pre-buried sleeve of the present invention;

FIGS. 5a and 5b are a left side view and a right side view of FIG. 5, in a one-to-one correspondence;

fig. 6 is an axial cross-sectional view of a first positioning mount of the present invention;

FIGS. 6a and 6b are a left side view and a right side view of FIG. 6, in a one-to-one correspondence;

fig. 7 is an axial cross-sectional view of a second positioning mount of the present invention;

fig. 8 is an axial cross-sectional view of a third positioning mount of the present invention;

FIGS. 8a and 8b are left and right side views of FIG. 8, one for one;

fig. 9 is an axial cross-sectional view of a fourth positioning mount of the present invention;

fig. 10 is an axial cross-sectional view of a fifth positioning mount of the present invention;

FIGS. 10a and 10b are left and right side views of FIG. 10, one for one;

fig. 11 is an axial cross-sectional view of a sixth positioning mount of the present invention;

fig. 12, 13 and 14 are axial cross-sectional views of a seventh positioning mount, an eighth positioning mount and a ninth positioning mount of the present invention in a one-to-one correspondence;

fig. 15, 16 and 17 are axial sectional views of a tenth positioning mount, an eleventh positioning mount and a twelfth positioning mount of the present invention in a one-to-one correspondence.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings.

Referring to fig. 1 to 17, the positioning pre-buried device for shield segment reserved bolt hole of the present invention is installed on the segment mold bottom plate 3 and includes a positioning pre-buried sleeve 1 and a positioning mounting seat 2.

The positioning embedded sleeve 1 is made of plastic, preferably low-smoke flame-retardant ABS. The positioning embedded sleeve 1 comprises a positioning pipe 11 and an embedded pipe 13; a flange 12 is arranged between the upper end of the positioning pipe 11 and the lower end of the embedded pipe 13; the positioning tube 11 is provided with a connecting mechanism, and the inner cavity of the positioning tube 11 is in a regular polygon shape or a circular shape; the upper end of the embedded pipe 13 is closed, and the outer surface of the embedded pipe 13 is provided with an anti-falling structure 130; the shape of the embedded pipe 13 is regular polygon or round, and the positioning pipe 11 is connected with the embedded pipe 13 into a whole through a flange 12;

a through hole 20 is formed in the axis of the positioning installation base 2, and the positioning installation base 2 is inserted into an installation hole 30 reserved on the segment mould base plate 3 and then fixed on the segment mould base plate 3;

the positioning pipe 11 of the positioning embedded sleeve 1 is inserted into the through hole 20 of the positioning installation seat 2 from the upper part of the segment mold bottom plate 3 and then fixed on the positioning installation seat 2 through a connecting mechanism.

The first positioning embedded sleeve 1A of the utility model comprises a positioning pipe 11 and an embedded pipe 13; a flange 12 is arranged between the upper end of the positioning pipe 11 and the lower end of the embedded pipe 13; the upper end of the positioning tube 11 is provided with a self-incision 14; the self-cutting notch 14 consists of a front notch, a rear notch, a left notch and a right notch which are respectively cut inwards at the front, the rear, the left and the right of the outer surface of the upper end of the positioning tube 11, the front notch, the rear notch, the left notch and the right notch are all positioned on the same circle, the width of each notch is 0.1-0.2 mm, and the depth of each notch is one third to one half of the wall thickness of the positioning tube 11; the connecting mechanism arranged on the positioning tube 11 is two hooks 10 which are centrosymmetrically and outwards protruded along the radial direction on the peripheral surface of the tail end of the positioning tube 11, and the outer ends of the two hooks 10 are positioned on the same circle; and the arc length of the outer end of each hook 10 is the same as that of the inner end (see fig. 3 to 3 e).

The second positioning embedded sleeve 1B of the utility model comprises a positioning pipe 11 and an embedded pipe 13; a flange 12 is arranged between the upper end of the positioning pipe 11 and the lower end of the embedded pipe 13; the connecting mechanism arranged on the positioning tube 11 comprises a plurality of hooks 10 uniformly distributed on the outer peripheral surface of the tail end of the positioning tube 11 and protruding outwards in the radial direction, and a plurality of notches 15 axially cut between every two adjacent hooks, and the outer ends of the hooks 10 are all located on the same circle (see fig. 4 to 4 d).

The third positioning embedded sleeve 1C of the utility model comprises a positioning pipe 11 and an embedded pipe 13; a flange 12 is arranged between the upper end of the positioning pipe 11 and the lower end of the embedded pipe 13; the upper part of the positioning tube 11 is reduced in diameter from bottom to top to form a self-cutting incision 14; the connection means provided on the positioning tube 11 is an external thread provided on the positioning tube 11 (see fig. 5 to 5 b).

The utility model has twelve positioning installation seats, the first to the sixth positioning installation seats comprise a base 21 and an inserting pipe 22 which is integrated and coaxially extended from the upper end surface of the base 21; the outer surface of the insertion tube 22 is smooth or provided with external threads. The seventh to twelfth positioning mounting seats are straight pipes with smooth cylindrical surfaces or external threads on the outer surfaces.

The outer surface of the inserting pipe 22 of the first positioning installation seat 2A is provided with external threads; the shape of the through hole 20 of the first positioning installation seat 2A is matched with the shape of the cross section of the tail end of the positioning tube 11 of the first positioning embedded sleeve 1A (see fig. 6 to 6 b); the inserting pipe 22 of the first positioning installation seat 2A is screwed into an installation hole 30 (threaded hole) reserved on the segment mould base plate 3 from the lower part of the segment mould base plate 3, so that the base 21 is left on the lower end surface of the segment mould base plate 3; a steel gasket 4 is arranged between the upper end face of the base 21 and the lower end face of the segment mould bottom plate 3; the first positioning embedded sleeve 1A positioning pipe 11 is inserted into the through hole 20 of the first positioning mounting seat 2A from the upper part of the segment mold bottom plate 3 and then rotates for 90 degrees, so that the two hooks 10 are hooked on the lower end face of the first positioning mounting seat 2A; a soft rubber gasket 5 is arranged between the lower end face of a flange 12 of the first positioning embedded sleeve 1A and the upper end face of the segment mould base plate 3.

The outer surface of the plug pipe 22 of the second positioning installation seat 2B is a smooth cylindrical surface, and the shape of the through hole 20 of the second positioning installation seat 2B is matched with the shape of the cross section of the tail end of the positioning pipe 11 of the first positioning embedded sleeve 1A (see fig. 7); the inserting pipe 22 of the second positioning mounting seat 2B is inserted into a mounting hole 30 (smooth cylindrical surface hole) reserved on the segment mould base plate 3 from the lower part of the segment mould base plate 3, so that the base 21 is left on the lower end surface of the segment mould base plate 3, a steel gasket 4 is arranged between the upper end surface of the base 21 and the lower end surface of the segment mould base plate 3, the upper end surface of the base 21 is spot-welded with the lower end surface of the steel gasket 4, the upper end surface of the steel gasket 4 is spot-welded with the lower end surface of the segment mould base plate 3, and the second positioning mounting seat 2B is fixed on the segment mould base plate 3; the first positioning embedded sleeve 1A positioning pipe 11 is inserted into the through hole 20 of the second positioning mounting seat 2B from the upper part of the segment mold bottom plate 3 and then rotates 90 degrees, so that the two hooks 10 are hooked on the lower end surface of the second positioning mounting seat 2B; a soft rubber gasket 5 is arranged between the lower end face of a flange 12 of the first positioning embedded sleeve 1A and the upper end face of the segment mould base plate 3.

The outer surface of the inserting pipe 22 of the third positioning installation seat 2A is provided with external threads; the diameter of the through hole 20 of the third positioning installation seat 2C is larger than the outer diameter of the positioning tube 11 of the second positioning embedded sleeve 1B and smaller than the diameter of the circle where the outer end of the hook 10 is located (see fig. 8 to 8B); the inserting pipe 22 of the third positioning installation seat 2C is screwed into an installation hole 30 (threaded hole) reserved on the segment mould base plate 3 from the lower part of the segment mould base plate 3, so that the base 21 is left on the lower end surface of the segment mould base plate 3; a steel gasket 4 is arranged between the upper end face of the base 21 and the lower end face of the segment mould bottom plate 3; after the positioning pipe 11 of the second positioning embedded sleeve 1B is reduced in diameter through the plurality of gaps 15, the through hole 20 of the third positioning mounting seat 2C is inserted from the upper part of the segment mold base plate 3, and then the plurality of hooks 10 are hooked on the lower end surface of the third positioning mounting seat 2C by using the elasticity of plastics; a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the second positioning embedded sleeve 1B and the upper end face of the segment mould base plate 3.

The outer surface of the insertion tube 22 of the fourth positioning mounting seat 2D is a smooth cylindrical surface; the diameter of the through hole 20 of the fourth positioning installation seat 2D is larger than the outer diameter of the positioning tube 11 of the second positioning embedded sleeve 1B and smaller than the diameter of the circle where the outer end of the hook 10 is located (see fig. 9); the insertion pipe 22 of the fourth positioning mounting seat 2D is inserted into a mounting hole 30 (smooth cylindrical hole) reserved on the segment mold base plate 3 from the lower part of the segment mold base plate 3, so that the base 21 is left on the lower end surface of the segment mold base plate 3, a steel gasket 4 is arranged between the upper end surface of the base 21 and the lower end surface of the segment mold base plate 3, the upper end surface of the base 21 is spot-welded with the lower end surface of the steel gasket 4, the upper end surface of the steel gasket 4 is spot-welded with the lower end surface of the segment mold base plate 3, and the fourth positioning mounting seat 2D is fixed on the segment mold base plate 3; after the positioning pipe 11 of the second positioning embedded sleeve 1B is reduced in diameter through the plurality of gaps 15, the through hole 20 of the fourth positioning mounting seat 2D is inserted from the upper part of the segment mold base plate 3, and then the plurality of hooks 10 are hooked on the lower end surface of the fourth positioning mounting seat 2D by using the elasticity of plastics; a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the second positioning embedded sleeve 1B and the upper end face of the segment mould base plate 3.

The outer surface of the inserting pipe 22 of the fifth positioning installation seat 2E is provided with an external thread; the through hole 20 of the fifth positioning installation seat 2C is provided with internal threads at least at the connecting part with the positioning tube 11 of the third positioning embedded sleeve 1C (see fig. 10 to 10 b); the inserting pipe 22 of the fifth positioning installation seat 2E is screwed into an installation hole 30 (threaded hole) reserved on the segment mould base plate 3 from the lower part of the segment mould base plate 3, so that the base 21 is left on the lower end surface of the segment mould base plate 3; a steel gasket 4 is arranged between the upper end face of the base 21 and the lower end face of the segment mould bottom plate 3; the positioning pipe 11 of the third positioning embedded sleeve 1C is screwed into the through hole 20 of the fifth positioning mounting seat 2E from the upper part of the segment mould bottom plate 3 and then fixed on the fifth positioning mounting seat 2E; and a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the third positioning embedded sleeve 1C and the upper end face of the segment mould base plate 3.

The outer surface of the insertion tube 22 of the sixth positioning mounting seat 2F is a smooth cylindrical surface; the through hole 20 of the sixth positioning mounting seat 2F is provided with an internal thread at least at the connecting part with the positioning tube 11 of the third positioning embedded sleeve 1C (see fig. 11); the inserting pipe 22 of the sixth positioning mounting seat 2F is inserted into a mounting hole 30 (smooth cylindrical surface hole) reserved on the segment mould base plate 3 from the lower part of the segment mould base plate 3, so that the base 21 is left on the lower end surface of the segment mould base plate 3, a steel gasket 4 is arranged between the upper end surface of the base 21 and the lower end surface of the segment mould base plate 3, the upper end surface of the base 21 is spot-welded with the lower end surface of the steel gasket 4, the upper end surface of the steel gasket 4 is spot-welded with the lower end surface of the segment mould base plate 3, and the sixth positioning mounting seat 2F is fixed on the segment mould base plate 3; the positioning pipe 11 of the third positioning embedded sleeve 1C is screwed into the through hole 20 of the sixth positioning mounting seat 2F from the upper part of the segment mould bottom plate 3 and then fixed on the sixth positioning mounting seat 2F; and a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the third positioning embedded sleeve 1C and the upper end face of the segment mould base plate 3.

The seventh positioning mounting seat 2G is a straight pipe with external threads on the outer surface; the shape of the through hole 20 of the seventh positioning installation seat 2G is matched with the shape of the cross section of the tail end of the positioning tube 11 of the first positioning embedded sleeve 1A (see fig. 12); the seventh positioning mounting seat 2G is screwed into a mounting hole 30 (threaded hole) reserved on the segment mould base plate 3 and then fixed on the segment mould base plate 3; the first positioning embedded sleeve 1A positioning pipe 11 is inserted into the through hole 20 of the seventh positioning mounting seat 2G from the upper part of the segment mold bottom plate 3 and then rotates for 90 degrees, so that the two hooks 10 are hooked on the lower end face of the seventh positioning mounting seat 2G; a soft rubber gasket 5 is arranged between the lower end face of a flange 12 of the first positioning embedded sleeve 1A and the upper end face of the segment mould base plate 3.

The eighth positioning installation seat 2H is a straight pipe with an external thread on the outer surface, and the diameter of the through hole 20 of the eighth positioning installation seat 2B is larger than the outer diameter of the positioning pipe 11 of the second positioning embedded sleeve 1B and smaller than the diameter of the circle where the outer end of the hook 10 is located (see fig. 13); the eighth positioning mounting seat 2H is screwed into a mounting hole 30 (threaded hole) reserved on the segment mold base plate 3 and then fixed on the segment mold base plate 3; after the positioning pipe 11 of the second positioning embedded sleeve 1B is reduced in diameter through the plurality of gaps 15, the positioning pipe is inserted into the through hole 20 of the eighth positioning installation seat 2H from the upper part of the segment mold base plate 3, and then the plurality of hooks 10 are hooked on the lower end surface of the eighth positioning installation seat 2H by using the elasticity of plastics; a soft rubber gasket 5 is arranged between the lower end face of a flange 12 of the second positioning embedded sleeve 1B and the upper end face of the segment mould bottom plate 3.

The ninth positioning mounting seat 2I is a straight pipe with external threads on the outer surface; the through hole 20 of the ninth positioning installation seat 2I is provided with internal threads at least at the connecting part with the positioning tube 11 of the third positioning embedded sleeve 1C (see fig. 14); the splicing pipe 22 of the ninth positioning mounting seat 2I is screwed into a mounting hole 30 (threaded hole) reserved on the segment mould base plate 3 and then fixed on the segment mould base plate 3; the positioning pipe 11 of the third positioning embedded sleeve 1C is screwed into the through hole 20 of the ninth positioning mounting seat 2I from above the segment mold base plate 3 and then fixed on the ninth positioning mounting seat 2I; a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the third positioning embedded sleeve 1C and the upper end face of the segment mould bottom plate 3.

The tenth positioning and mounting seat 2J is a straight pipe of which the outer surface is a smooth cylindrical surface, and the shape of the through hole 20 of the tenth positioning and mounting seat 2J is matched with the shape of the cross section of the tail end of the positioning pipe 11 of the first positioning embedded sleeve 1A (see fig. 15); the tenth positioning mounting seat 2J is inserted into a mounting hole 30 (smooth cylindrical surface hole) reserved on the segment mould base plate 3 and fixed on the segment mould base plate 3 through spot welding; the positioning pipe 11 of the first positioning embedded sleeve 1A is inserted into the through hole 20 of the tenth positioning mounting seat 2J from the upper part of the segment mould bottom plate 3 and then rotates for 90 degrees, so that the two hooks 10 are hooked on the lower end surface of the tenth positioning mounting seat 2J; a soft rubber gasket 5 is arranged between the lower end face of a flange 12 of the first positioning embedded sleeve 1A and the upper end face of the segment mould base plate 3.

The eleventh positioning installation seat 2K is a straight pipe with a smooth cylindrical surface on the outer surface; the diameter of the through hole 20 of the eleventh positioning installation seat 2K is larger than the outer diameter of the positioning tube 11 of the second positioning embedded sleeve 1B and smaller than the diameter of the circle where the outer end of the hook 10 is located (see fig. 16); the eleventh positioning mounting seat 2K is inserted into a mounting hole 30 (smooth cylindrical surface hole) reserved on the segment mould base plate 3 and fixed on the segment mould base plate 3 through spot welding; after the positioning pipe 11 of the second positioning embedded sleeve 1B is reduced in diameter through the plurality of gaps 15, the positioning pipe is inserted into the through hole 20 of the eleventh positioning mounting seat 2K from above the segment mold base plate 3, and then the plurality of hooks 10 are hooked on the lower end surface of the eleventh positioning mounting seat 2K by using the elasticity of plastics; a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the second positioning embedded sleeve 1B and the upper end face of the segment mould base plate 3.

The twelfth positioning mounting seat 2L is a straight pipe whose outer surface is a smooth cylindrical surface, and the through hole 20 of the twelfth positioning mounting seat 2L is provided with an internal thread at least at a connecting part with the positioning pipe 11 of the third positioning embedded sleeve 1C (see fig. 17); the twelfth positioning mounting seat 2L is inserted into a mounting hole 30 (smooth cylindrical hole) reserved on the segment mould base plate 3 and fixed on the segment mould base plate 3 by spot welding; a positioning pipe 11 of the third positioning embedded sleeve 1C is screwed into a through hole 20 of the twelfth positioning mounting seat 2L from above the segment mold bottom plate 3 and then fixed on the twelfth positioning mounting seat 2L; and a soft rubber gasket 5 is arranged between the lower end face of the flange 12 of the third positioning embedded sleeve 1C and the upper end face of the segment mould base plate 3.

The first to sixth positioning installation seats can be made of high-strength hexagonal bolts with teeth or half teeth, the length (with teeth or without teeth) of the insertion pipe 22 (the screw rod of the hexagonal bolt) is equal to the thickness of the segment mould base plate 3 and the thickness of the steel flat gasket 4, and the upper end surface and the lower end surface of the base 21 (the head of the hexagonal bolt) are flat and smooth. The seventh to twelfth positioning installation seats can be made of high-strength round steel, and the total length of the positioning installation seats is the same as that of the first to sixth positioning installation seats.

The utility model discloses a location pre-buried device that is used for shield to construct section of jurisdiction and reserves bolt hole, when being used for section of jurisdiction production, choose for use a location mount pad 2 in first to twelfth kind of location mount pad to fix from bottom to top in the mounting hole 30 of reserving on section of jurisdiction mould bottom plate 3 earlier, adopt a location mount pad 2 in first to sixth kind of location mount pad, still will install steel gasket 4 between location mount pad 2 and section of jurisdiction mould bottom plate 3 additional, the connection mechanism that passes through on the registration arm after inserting location mount pad 2's through-hole with a location pre-buried sleeve pipe 1 in first to third kind of location pre-buried sleeve pipe from section of jurisdiction mould bottom plate 3's top fixes on location mount pad 2 again, and set up flexible glue gasket 5 between location pre-buried sleeve pipe 1's flange 12 and section of jurisdiction mould bottom plate 3, utilize the flange 12 on the location pre-buried sleeve pipe to apply the pressure on cement mortar flat gasket 5 to seal, prevent to flow into the mounting hole 30 of reserving on the section of jurisdiction mould bottom plate 3.

After concrete pouring of section of jurisdiction is accomplished, lift from the section of jurisdiction in the section of jurisdiction mould, fix a position buried sleeve 1's registration arm 11 and buried pipe 13 at the autosegregation of autogenous cutting 14 department simultaneously, accomplish the pre-buried of location buried sleeve 1 in the section of jurisdiction, registration arm 11 remains in the through-hole of location mount pad 2, need demolish registration arm 11 that remains in location mount pad 2, just can make next section of jurisdiction.

After a plurality of duct pieces are poured, if the positioning installation base 2 is damaged or polluted by cement mortar and can not be used repeatedly, the new positioning installation base 2 is replaced on the duct piece mold bottom plate 3.

The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can also make various changes or modifications without departing from the design intent and scope of the present invention, and all equivalent technical solutions should also belong to the scope of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A positioning and pre-burying device for a shield segment reserved bolt hole is arranged on a segment die base plate and is characterized by comprising a positioning and pre-burying sleeve and a positioning and mounting seat;

a through hole is formed in the axis of the positioning mounting seat, and the positioning mounting seat is inserted into a mounting hole reserved in the duct piece mold bottom plate and then fixed on the duct piece mold bottom plate;

and the positioning pipe of the positioning embedded sleeve is inserted into the through hole of the positioning mounting seat from the upper part of the segment mould base plate and then is fixed on the positioning mounting seat through a connecting mechanism.

2. The positioning and embedding device for the shield segment reserved bolt hole according to claim 1, wherein the connecting mechanism arranged on the positioning tube is two hooks which are centrosymmetrically and radially outwards protruded on the outer peripheral surface of the tail end of the positioning tube, and the outer ends of the two hooks are positioned on the same circle; the shape of the through hole of the positioning installation seat is matched with the shape of the cross section of the tail end of the positioning pipe, so that the positioning pipe is inserted into the through hole of the positioning installation seat from the upper part of the duct piece mold bottom plate and then rotates by 90 degrees, and the two clamping hooks are hooked on the lower end face of the positioning installation seat.

3. The positioning and embedding device for the shield segment reserved bolt hole according to claim 1, wherein the connecting mechanism arranged on the positioning pipe comprises a plurality of clamping hooks which are uniformly distributed on the outer peripheral surface of the tail end of the positioning pipe and protrude outwards in the radial direction, and a plurality of notches which are axially cut between every two adjacent clamping hooks, and the outer ends of the plurality of clamping hooks are all positioned on the same circle; the diameter of the through hole of the positioning installation seat is larger than the outer diameter of the positioning pipe and the diameter of the circle where the outer end of the clamping hook is located, so that the positioning pipe is inserted into the upper portion of the duct piece die base plate after being reduced through a plurality of gaps, and the plurality of clamping hooks are hooked on the lower end face of the positioning installation seat by using the elasticity of plastics after the through hole of the positioning installation seat.

4. The positioning and embedding device for the shield segment reserved bolt hole according to claim 1, wherein a connecting mechanism arranged on the positioning pipe is an external thread arranged on the positioning pipe; the through hole of the positioning installation seat is provided with internal threads, so that the positioning pipe is screwed into the through hole of the positioning installation seat from the upper part of the segment mould base plate and then fixed on the positioning installation seat.

5. The positioning and embedding device for the shield segment reserved bolt hole according to claim 2, wherein a self-cutting notch is formed in the upper end of the positioning pipe of the positioning and embedding sleeve; the self-incision is composed of a front incision, a rear incision, a left incision and a right incision which are respectively cut inwards in the front, the rear, the left and the right of the outer surface of the upper end of the positioning pipe, and the front incision, the rear incision, the left incision and the right incision are all located on the same circle.

6. The positioning and embedding device for the shield segment reserved bolt hole according to any one of claims 1 to 4, wherein the positioning and installing seat comprises a base and an inserting pipe which integrally extends from the upper end surface of the base and coaxially extends out, and the outer surface of the inserting pipe is a smooth cylindrical surface; the inserting pipe of the positioning installation seat is inserted into the installation hole reserved in the segment mould base plate from the lower portion of the segment mould base plate, so that the base is left on the lower end face of the segment mould base plate, and the base is fixed on the segment mould base plate through welding.

7. The positioning and embedding device for the shield segment reserved bolt hole according to any one of claims 1 to 4, wherein the positioning and installing seat comprises a base and an inserting pipe which integrally extends from the upper end surface of the base and coaxially extends out, and external threads are arranged on the outer surface of the inserting pipe; an inner thread is arranged in a mounting hole reserved in the segment mould bottom plate; the inserting pipe of the positioning installation seat is screwed into the installation hole reserved on the segment mould base plate from the lower part of the segment mould base plate, so that the base is left on the lower end face of the segment mould base plate.

8. The positioning and embedding device for the shield segment reserved bolt hole according to any one of claims 1 to 4, wherein the positioning and installing seat is a straight pipe with an outer diameter matched with the inner diameter of the installing hole reserved on the segment mold base plate, and the positioning and installing seat is inserted into the installing hole reserved on the segment mold base plate and then fixed on the segment mold base plate through welding.

9. The positioning and embedding device for the shield segment reserved bolt hole according to any one of claims 1 to 4, wherein the positioning and mounting seat is a straight pipe provided with an external thread; the mounting hole reserved on the segment mould base plate is provided with internal threads, so that the positioning mounting seat is screwed into the mounting hole reserved on the segment mould base plate and then fixed on the segment mould base plate.

10. The positioning and embedding device for the shield segment reserved bolt hole according to any one of claims 1 to 4, wherein the upper end of the embedded pipe of the positioning and embedding sleeve is closed, and an anti-falling structure is arranged on the outer surface of the embedded pipe; the inner cavity of the positioning embedded sleeve is in a regular polygon shape or a circular shape.