Full-circle tunnel lining construction device

Abstract

The utility model relates to the field of diversion tunnel lining construction, in particular to a full-circle tunnel lining construction device which comprises a lining trolley formed by connecting a plurality of unit modules, each unit module is composed of a middle beam and a plurality of formworks, the periphery of the middle beam is connected with the formworks through a supporting unit, and the supporting units are connected with the lining trolley. The supporting unit is used for driving the multiple formworks to be folded so as to form an annular structure matched with a full-circle tunnel. Wherein the supporting unit comprises a driving piece, the driving piece is provided with a telescopic end, the driving piece and the telescopic end of the driving piece are connected with the middle beam and the formwork through fixing assemblies correspondingly, the assembling efficiency can be improved between the connecting base and the middle beam in the mode of unlocking a butterfly-shaped part and a locking piece, and the assembling efficiency can be improved advantageously; the supporting part and the shell part are fixed in a mode that the positioning glass beads are clamped, and the shell part can be independently replaced after being abraded.

Description

TECHNICAL FIELD

[0001] The utility model relates to diversion tunnel lining construction field especially relates to a full circle tunnel lining construction device. BACKGROUND

[0002] Diversion tunnel lining construction refers to a kind of construction technology for lining surrounding rock in diversion tunnel engineering by using concrete, reinforced concrete or other materials, and it needs to use needle beam trolley to pour concrete in the construction process, needle beam trolley is a kind of equipment used for lining construction in tunnel construction, and through the combination of formwork and needle beam, it can realize the formwork support of full section or partial section of tunnel, so as to complete concrete pouring work.

[0003] Needle beam trolley is suitable for full circle tunnel lining construction, for example, the prior art Chinese patent publication number "CN218882252U" discloses a full circle tunnel lining construction device, which comprises a movable supporting part, a position adjusting part and a lining trolley composed of multiple unit modules, adjacent two unit modules are rotationally connected, the movable supporting part can move in the tunnel, the lining trolley slides on the movable supporting part, the position adjusting part is used to adjust the position of the lining trolley in the tunnel, and the leading end of the lining trolley is provided with a self-lifting device, which drives the lining trolley to slide on the movable supporting part through traction rope.The utility model decomposes lining trolley into multiple unit modules, and moves trolley by self-lifting device, so that the lining trolley can adapt to straight section, bend section, vertical shaft section and inclined shaft section tunnel construction, solves the problem of needing multiple trolley devices in diversion tunnel lining construction, improves work efficiency and reduces construction cost.

[0004] In specific operation, the multiple hydraulic cylinders arranged between the middle beam and the formwork can drive the formwork to close, so as to support the inner wall of full circle tunnel, considering that the hydraulic cylinders and the middle beam are fixed through the fixing seat and multiple locking bolts, it is inconvenient to assemble, and the outer wall of the formwork rubs against the inner wall of the tunnel, so that only the whole formwork can be replaced after long time use, causing resource waste. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above-mentioned problems in prior art that the hydraulic cylinders and the middle beam are inconvenient to assemble, and the formwork replacement cost is high, and provides a full circle tunnel lining construction device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model designs a full circle tunnel lining construction device, which comprises a lining trolley composed of a plurality of unit modules, wherein each unit module comprises a middle beam and a plurality of formworks, and the periphery of the middle beam is connected with the formworks through supporting units, and the supporting units are used to drive the plurality of formworks to close to form a ring structure suitable for the full circle tunnel.

[0008] Further, the supporting units comprise driving members, each of which has an extension end, and the driving members and the extension ends thereof are connected with the middle beam and the formworks respectively through fixing assemblies.

[0009] Further, one of the formworks is fixedly connected to the bottom of the middle beam, and the other formworks are arranged on the periphery of the middle beam through the supporting units, wherein two adjacent formworks are connected end to end in a rotatable manner, and one end of the formwork arranged on the top of the middle beam is free.

[0010] Further, the fixing assemblies comprise connecting seats and a pair of rotating seats, and the middle beam is provided with positioning grooves on the opposite sides of the rod-shaped part, and the bottom of each connecting seat is in a U-shaped structure, and the two side walls of the bottom are clamped in the positioning grooves.

[0011] Further, the extension end of each driving member is pinned to the reinforcing rib on the inner side of the formwork through the rotating seat, and the bottom end of the driving member is rotatably connected with the connecting seat through another rotating seat.

[0012] Further, the connecting seat is rotatably connected with a locking member on each of the two side walls, and is provided with a clearance groove, the free end of the locking member is arranged in the clearance groove, and the free end of the locking member is further threadedly connected with a butterfly-shaped part, and the butterfly-shaped part is abutted against the side wall of the connecting seat.

[0013] Further, the formwork comprises a supporting part and an outer shell part, the outer shell part is attached to the outer side of the supporting part, the connecting part is arranged on the inner side of both ends of the outer shell part, and the connecting part penetrates through the supporting part and is attached to the side wall of the reinforcing rib.

[0014] Further, at least one positioning glass bead is embedded in the side wall of the reinforcing rib, the connecting part forms a through hole through the two sides, and the extension column end of the positioning glass bead is clamped in the through hole.

[0015] The full-circular tunnel lining construction device has the beneficial effects that: the utility model discloses a plurality of hydraulic cylinders are arranged between the middle beam and the formwork, the hydraulic cylinders are connected and fixed with the formwork and the middle beam through the fixed assembly, wherein the connecting seat and the middle beam can improve the assembly efficiency through the mode of unlocking the butterfly part and the locking piece, avoid the situation that the connecting seat and the middle beam need to be fixed through multiple locking bolts, are favorable to improving the assembly efficiency, in addition, the support part and the shell part are fixed through the mode of positioning glass pearl clamping, when the shell part is abraded, the shell part can be replaced individually, and the maintenance cost is prevented from rising due to the overall replacement of the formwork. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the structural schematic diagram of the unit module of the utility model;

[0018] Figure 3 It is the structural schematic diagram of the fixed assembly of the utility model;

[0019] Figure 4 It is the B area enlarged structural schematic diagram of Figure 3 ;

[0020] Figure 5 It is the structural schematic diagram of the connecting part of the utility model;

[0021] Figure 6 It is the B area enlarged structural schematic diagram of Figure 5 .

[0022] In the drawing: 1, unit module; 2, lining trolley; 3, middle beam; 31, positioning groove; 4, formwork; 41, support part; 42, shell part; 43, connecting part; 431, through hole; 44, reinforcing rib; 45, positioning glass pearl; 5, support unit; 51, driving part; 6, fixed assembly; 61, connecting seat; 62, rotating seat; 63, locking piece; 64, let-positioning groove; 65, butterfly part. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Refer to Figures 1-6The utility model provides a kind of full circle tunnel lining construction device, including lining trolley 2 by connecting the module 1 of several units, the module 1 is made of middle beam 3 and several formworks 4, the periphery of the middle beam 3 is connected with the formwork 4 by support unit 5, the support unit 5 is used to drive several formworks 4 to close, to form annular structure compatible with full circle tunnel;

[0025] Wherein, the support unit 5 includes driving member 51, the driving member 51 has a telescopic end, and the driving member 51 and its telescopic end are connected with the middle beam 3 and the formwork 4 respectively by fixing assembly 6.

[0026] In some embodiments, the lining trolley 2 is a full circle needle beam type lining trolley in the prior art, which is decomposed into multiple unit modules 1, and the unit modules 1 can rotate relative to each other, and the lining trolley can slide on a movable support part without the need to set a track wheel, and the specific structure is not described here.

[0027] Further, one of the formworks 4 is fixedly connected to the bottom of the middle beam 3, and the other formworks 4 are arranged on the periphery of the middle beam 3 by the support units 5, wherein, two adjacent formworks 4 are connected end to end in rotation, and the formwork 4 arranged on the top of the middle beam 3 is freely movable at one end.

[0028] It should be noted that, as Figure 2 described, four formworks 4 are arranged in the embodiment, one formwork 4 is fixedly connected to the bottom of the middle beam 3, and the other three formworks 4 are fixedly connected to the two sides and the top of the middle beam 3 by the support units 5, wherein, the formwork 4 arranged on the top of the middle beam 3 is rotatably connected at one end and freely movable at the other end.

[0029] Because the other end of the formwork 4 is freely movable, the remaining formworks 4 are driven by the support units 5 to fold inward, and then the freely movable end of the formwork 4 can be accommodated below the end of the adjacent formwork 4, to prevent scratching with the reinforcement cage when the lining trolley 2 moves by folding the whole;

[0030] Specifically, the top formwork 4 and the formworks 4 on the two sides of the middle beam 3 are driven to extend by hydraulic cylinders, and the positioning of the formworks 4 is ensured by measurement and positioning to ensure accurate positioning, and then the four formworks 4 are folded to fit the reinforcement cage in the tunnel wall.

[0031] In addition, the driving member 51 is a hydraulic cylinder in the prior art, which is connected with a hydraulic system, and multiple hydraulic cylinders can be used independently, and the specific connection mode between the hydraulic cylinder and the hydraulic system is not described here.

[0032] Further, the fixing assembly 6 comprises a connecting seat 61 and a pair of rotating seats 62, the middle beam 3 is provided with a positioning groove 31 on the opposite sides of the rod-shaped part, the bottom of the connecting seat 61 is in a U-shaped structure, and the two side walls of the bottom are clamped in the positioning groove 31.

[0033] The telescopic end of the driving piece 51 is pinned to the reinforcing rib 44 on the inner side of the formwork 4 through the rotating seat 62, and the bottom end of the driving piece 51 is rotationally connected to the connecting seat 61 through another rotating seat 62.

[0034] It is worth mentioning that the two side walls of the bottom of the connecting seat 61 are clamped in the positioning groove 31, so as to prevent the connecting seat 61 from sliding randomly.

[0035] In detail, the connecting seat 61 is rotationally connected with a locking piece 63 on the two side walls, and is provided with a gap 64, the free end of the locking piece 63 is arranged in the gap 64, the free end of the locking piece 63 is further threadedly connected with a butterfly-shaped part 65, and the butterfly-shaped part 65 is abutted against the side wall of the connecting seat 61.

[0036] In this embodiment, the locking piece 63 is a locking bolt, the butterfly-shaped part 65 is a butterfly-shaped nut, one end of the locking bolt is fixedly connected with a circular part, the circular part is pinned and rotated with one side wall of the connecting seat 61, and the other end of the locking bolt is threadedly connected with the butterfly-shaped nut.

[0037] In specific operation, after the locking piece 63 and the butterfly-shaped part 65 are threadedly connected, the butterfly-shaped part 65 abuts against the side wall of the connecting seat 61, and then the locking piece 63 is fixed, at this time, the locking piece 63 abuts against the bottom of the rod-shaped part of the middle beam 3, so as to prevent the connecting seat 61 from freely moving.

[0038] In general, the formwork 4 comprises a supporting part 41 and a shell part 42, the shell part 42 is attached to the outer side of the supporting part 41, the connecting part 43 is arranged on the inner side of both ends of the shell part 42, the connecting part 43 penetrates the supporting part 41 and is attached to the side wall of the reinforcing rib 44.

[0039] Finally, at least one positioning glass bead 45 is embedded in the side wall of the reinforcing rib 44, the connecting part 43 forms a through hole 431 through the two sides, and the telescopic column end of the positioning glass bead 45 is clamped in the through hole 431.

[0040] It should be added that the shell part 42 is supported by the full-circle tunnel inner wall steel reinforcement cage, and after long-term use, scratches and abrasions occur, specifically, Figure 5The reinforcing rib 44 is composed of at least one longitudinal rib and several transverse ribs, the connecting part 43 is fitted through the support part 41, the connecting part 43 is fitted with the transverse rib, then when the telescopic column end of the positioning glass bead 45 is popped out and clamped in the through hole 431, the connecting part 43 on both sides is inserted, the support part 41 and the shell part 42 can be fixed.

[0041] Working mode: when the shell part 42 is attached to the outer wall of the support part 41, the telescopic column end of the positioning glass bead 45 is retracted, then the connecting part 43 is fitted through the support part 41 and fitted with the corresponding transverse rib, the telescopic column end of the positioning glass bead 45 is reset and clamped in the through hole 431, the shell part 42 is fixed by fixing the connecting part 43 on both sides, of course, the disassembly mode of the shell part 42 is the same;

[0042] Then, the bottom two side walls of the connecting seat 61 are clamped in the positioning groove 31, the positioning groove 31 cooperates with the rod-shaped part of the middle beam 3 to lock the connecting seat 61 in the circumferential direction, the free end of the locking piece 63 is set in the accommodation groove 64 by rotating the locking piece 63, then the free end of the locking piece 63 is screwed with the butterfly-shaped part 65, the butterfly-shaped part 65 abuts against the side wall of the connecting seat 61, the locking piece 63 is fixed, and the locking piece 63 abuts against the bottom of the rod-shaped part of the middle beam 3 to tighten the connecting seat 61;

[0043] Finally, the driving piece 51 drives several formworks 4 to open and close under the control of the hydraulic system, so that the formwork 4 supports the steel cage in the tunnel wall, to facilitate subsequent pouring of concrete.

[0044] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A full-circle tunnel lining construction device comprising a lining trolley (2) composed of a number of unit modules (1), characterized in that: The unit module (1) is composed of a middle beam (3) and a plurality of templates (4), the periphery of the middle beam (3) is connected with the templates (4) through a supporting unit (5), the supporting unit (5) is used for driving a plurality of the templates (4) to close, so as to form a ring structure matched with a full circle tunnel; Wherein, the supporting unit (5) includes a driving member (51), the driving member (51) has a telescopic end, the driving member (51) and the telescopic end thereof are connected with the middle beam (3) and the template (4) respectively through a fixing assembly (6); The fixing assembly (6) includes a connecting seat (61) and a pair of rotating seats (62), the middle beam (3) is provided with a positioning groove (31) on the opposite sides of the rod-shaped part, the bottom of the connecting seat (61) is in U-shaped structure, and the two side walls of the bottom are clamped in the positioning groove (31); Wherein, the telescopic end of the driving member (51) is pinned with the reinforcing rib (44) inside the template (4) through the rotating seat (62), and the bottom end of the driving member (51) is rotationally connected with the connecting seat (61) through another rotating seat (62).

2. A full circle tunnel lining construction apparatus according to claim 1, wherein: One of the templates (4) is fixedly connected to the bottom of the middle beam (3), and the other templates (4) are arranged on the periphery of the middle beam (3) through the supporting unit (5), wherein, two adjacent templates (4) are rotationally connected end to end, and one end of the template (4) arranged on the top of the middle beam (3) is freely movable.

3. A full circle tunnel lining construction apparatus according to claim 1, wherein: The connecting seat (61) is rotationally connected with a locking member (63) on the two side walls, and is provided with a clearance groove (64), the free end of the locking member (63) is arranged in the clearance groove (64), the free end of the locking member (63) is further threadedly connected with a butterfly-shaped part (65), and the butterfly-shaped part (65) is abutted against the side wall of the connecting seat (61).

4. A full circle tunnel lining construction apparatus according to claim 1, wherein: The template (4) includes a supporting part (41) and an outer shell part (42), the outer shell part (42) is attached to the outer side of the supporting part (41), the connecting part (43) is arranged in the inner side of the two ends of the outer shell part (42), the connecting part (43) penetrates the supporting part (41) and is attached to the side wall of the reinforcing rib (44).

5. A full circle tunnel lining construction apparatus according to claim 4, wherein: At least one positioning glass bead (45) is embedded in the side wall of the reinforcing rib (44), the connecting part (43) forms a through hole (431) through the two sides, and the telescopic column end of the positioning glass bead (45) is clamped in the through hole (431).

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