CN216894433U

CN216894433U - Tunnel lining platform truck bottom expansion formwork

Info

Publication number: CN216894433U
Application number: CN202220143460.XU
Authority: CN
Inventors: 刘卫东; 刘维青; 刘贺; 王旭东; 苗兆健; 陈键
Original assignee: Third Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-05
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a tunnel lining trolley bottom telescopic formwork which comprises a connecting bottom plate, wherein the surface of the connecting bottom plate is connected with a telescopic steel plate in a sliding mode, telescopic grooves are uniformly formed in the surface of the telescopic steel plate, positioning assemblies fixedly connected with the connecting bottom plate in a clamping mode are assembled in the telescopic grooves, a pressure side plate is fixedly connected to the side wall of the telescopic steel plate, fixing plate holes are uniformly formed in the side wall of the pressure side plate, and an auxiliary fixing assembly is fixedly assembled on the surface of the connecting bottom plate. Set up the blank holder board through the lateral wall at flexible steel sheet and increased the area of contact of flexible steel sheet and invert top surface to set up the fixed plate hole and conveniently fix the blank holder board through the bolt in the in-process of follow-up construction, strengthen the fixed connection between flexible steel sheet and the invert surface, be connected fixedly through locating component between flexible steel sheet and the connecting bottom plate, the convenience is adjusted the position of flexible steel sheet according to the in service behavior, improve the use number of times of this device, when practicing thrift construction cost expense, improve work efficiency.

Description

Tunnel lining platform truck bottom expansion formwork

Technical Field

The utility model relates to the technical field of lining trolley templates, in particular to a tunnel lining trolley bottom telescopic template.

Background

At present, in the process of tunnel construction, a tunnel secondary lining trolley is required to be used. The connecting part of the bottom and the inverted arch of the existing tunnel secondary lining trolley is basically sealed and fixed by adopting materials such as small wood templates, steel pipes, cutting steel bars and the like in the using process, the wood templates are basically positioned in the vertical supporting blocks, the volume of concrete is increased, and therefore the contact area between the secondary lining trolley and the inverted arch is ensured. However, due to the supporting mode of the wood formwork, slurry leakage is easy to occur at the joint of the formwork, the loss of the wood formwork is large due to different heights of gaps at the bottom, and the temporary punching and cutting ribs are not fixed firmly. Therefore, a tunnel lining trolley bottom telescopic formwork is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tunnel lining trolley bottom telescopic formwork to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a tunnel lining platform truck bottom telescopic formwork, includes the connecting bottom plate, the surperficial sliding connection of connecting bottom plate has flexible steel sheet, flexible groove has evenly been seted up on the surface of flexible steel sheet, be equipped with the locating component who is fixed with connecting bottom plate looks joint in the flexible inslot, the lateral wall fixed connection of flexible steel sheet has the blank pressing board, the fixed diaphragm orifice has evenly been seted up to the lateral wall of blank pressing board, the fixed surface of connecting bottom plate is equipped with supplementary fixed subassembly.

Preferably, the distance between the telescopic grooves is 150cm, the length of the telescopic grooves is 12cm, and the width of the telescopic grooves is 20 mm.

Preferably, the locating component comprises a fixing screw rod welded on the surface of the connecting bottom plate, the fixing screw rod is located in the telescopic groove, the outer side wall of the fixing screw rod is screwed with a fixing nut, and the bottom of the fixing nut is attached to a protective pad.

Preferably, the distance between the fixing screws is 150cm, and the diameter of the fixing screw is 10 mm.

Preferably, supplementary fixed subassembly includes fixed connection in the first reinforcing plate of connecting the bottom plate surface, the top of first reinforcing plate seted up the assembly groove, it has the second reinforcing plate to peg graft in the assembly groove, the second reinforcing plate is triangle-shaped, fixed mounting has the third reinforcing plate between the surface of connecting the bottom plate and the lateral wall of first reinforcing plate.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a tunnel lining platform truck bottom expansion die board, the area of contact of expansion steel sheet and invert top surface has been increased to the side wall through at expansion steel sheet sets up the blank holder, and set up the fixed plate hole and make things convenient for fixing the blank holder through the bolt in the in-process of follow-up construction, strengthen the fixed connection between expansion steel sheet and the invert surface, it is fixed to be connected through locating component between expansion steel sheet and the connecting bottom plate, the convenience is adjusted the position of expansion steel sheet according to the in service behavior, improve the use number of times of this device, when practicing thrift construction cost expense, and the work efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a detailed view of fig. 2 at a.

In the figure: 1. connecting bottom plate, 2, flexible steel sheet, 3, flexible groove, 4, locating component, 41, clamping screw, 42, fixation nut, 43, protection pad, 5, blank holder board, 6, fixed plate hole, 7, supplementary fixed subassembly, 71, first reinforcing plate, 72, assembly groove, 73, second reinforcing plate, 74, third reinforcing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: the utility model provides a tunnel lining platform truck bottom expansion plate, is including connecting bottom plate 1, and the surperficial sliding connection of connecting bottom plate 1 has flexible steel sheet 2, connects the base of bottom plate 1 as whole device for carry out fixed connection with the platform truck template of lining cutting platform truck, extension steel sheet 2 is as the continuation of connecting bottom plate 1, fills the space of the archway face of facing upward through flexible steel sheet 2, two substrate portion concretes of shutoff. The flexible groove 3 has evenly been seted up on flexible steel sheet 2's surface, be equipped with in the flexible groove 3 with the fixed locating component 4 of connecting bottom plate 1 looks joint, fix connecting steel sheet 2's position through locating component 4, through carrying out relative regulation to flexible steel sheet 2 and the position of connecting between the bottom plate 1, make flexible steel sheet 2 can satisfy different construction conditions, the used repeatedly of flexible steel sheet 2 of being convenient for.

Positioning assembly 4 is including welding at the fixation screw 41 on connecting bottom plate 1 surface, fixation screw 41 is located flexible groove 3, fixation screw 41's interval is 150cm, fixation screw 41's diameter is 10mm, flexible groove 3's interval is 150cm, flexible groove 3's groove length is 12cm, it is wide to be 20mm, fixation screw 41's lateral wall spiro union has fixation nut 42, fixation nut 42's bottom laminating has the protection to fill up 43, fixation screw 41 is corresponding with flexible groove 3's position, lateral wall at fixation screw 41 through fixation nut 42 spiro union, make fixation nut 42 fix the position of flexible steel sheet 2, strengthen fixation nut 42 through setting up the fixed effect of protection pad 43 to flexible steel sheet 2.

Side wall welding of flexible steel sheet 2 has blank holder 5, and blank holder 5 has certain angle, and fixed plate hole 6 has evenly been seted up to blank holder 5's lateral wall, increases the area of contact of flexible steel sheet 2 and invert top surface through setting up blank holder 5 to make flexible steel sheet 2 have better shutoff effect to the concrete, cooperate with the pre-buried screw rod of invert top surface when using through the fixed plate hole 6 that sets up convenient flexible steel sheet 2.

The fixed surface of connecting bottom plate 1 is equipped with supplementary fixed subassembly 7, supplementary fixed subassembly 7 includes fixed connection in the first reinforcing plate 71 on connecting bottom plate 1 surface, the top of first reinforcing plate 71 seted up assembly groove 72, it has second reinforcing plate 73 to peg graft in the assembly groove 72, second reinforcing plate 73 is triangle-shaped, fixed mounting has third reinforcing plate 74 between the lateral wall of connecting bottom plate 1's surface and first reinforcing plate 71, second reinforcing plate 73 demountable assembly, after the position control to flexible steel sheet 2 is accomplished, strengthen the injectment to flexible steel sheet 2 position through second reinforcing plate 73, through first reinforcing plate 71, the connection cooperation of second reinforcing plate 73 and third reinforcing plate 74, increase the holistic stability of device.

The working principle is as follows: in the using process, after the tunnel secondary lining concrete is demolded, a prefabricated connecting steel plate 1 is welded at the bottom of a template, the device and a trolley are assembled and fixed, the trolley template is moved to a specified position for positioning, the position of a fixing screw 41 is basically the same as the position of a pre-embedded screw on the top surface of an inverted arch, a telescopic groove 3 of a telescopic steel plate 2 is stably placed corresponding to the screw, a grout stopping strip is attached to the inner side of a fixing plate hole 6 of a blank pressing plate 5, the blank pressing plate 5 completely falls on the top surface of the inverted arch, after a protective pad 43 is installed, a fixing nut 42 is screwed, a nut for fastening a screw in the fixing plate hole 6 is screwed, the telescopic steel plate 2 is completely fixed with the connecting bottom plate 1 and the top surface of the inverted arch tightly, an end head plate is blocked, and concrete is poured. After the first use is finished, the telescopic steel plate 2 does not need to be detached, the length of the telescopic groove 3 is utilized to lift, and the travelling height of the trolley template is ensured.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tunnel lining platform truck bottom expansion plate, is including connecting bottom plate (1), its characterized in that: the surface sliding connection who connects bottom plate (1) has flexible steel sheet (2), flexible groove (3) have evenly been seted up on the surface of flexible steel sheet (2), be equipped with in flexible groove (3) and connect bottom plate (1) fixed locating component (4) of joint mutually, the lateral wall fixed connection of flexible steel sheet (2) has blank pressing plate (5), fixed diaphragm orifice (6) have evenly been seted up to the lateral wall of blank pressing plate (5), the fixed surface of connecting bottom plate (1) is equipped with supplementary fixed subassembly (7).

2. The tunnel lining trolley bottom expansion formwork of claim 1, wherein: the distance between the telescopic grooves (3) is 150cm, the length of the telescopic grooves (3) is 12cm, and the width of the telescopic grooves is 20 mm.

3. The tunnel lining trolley bottom expansion formwork of claim 1, wherein: locating component (4) are including welding at clamping screw (41) on connecting bottom plate (1) surface, clamping screw (41) are located flexible groove (3), clamping screw (41)'s lateral wall spiro union has fixation nut (42), the bottom laminating of fixation nut (42) has protection pad (43).

4. The tunnel lining trolley bottom expansion formwork of claim 3, wherein: the distance between the fixed screws (41) is 150cm, and the diameter of the fixed screws (41) is 10 mm.

5. The tunnel lining trolley bottom expansion formwork of claim 1, wherein: supplementary fixed subassembly (7) are including first reinforcing plate (71) of fixed connection in connection bottom plate (1) surface, the top of first reinforcing plate (71) seted up assembly groove (72), it has second reinforcing plate (73) to peg graft in assembly groove (72), second reinforcing plate (73) are triangle-shaped, fixed mounting has third reinforcing plate (74) between the surface of connection bottom plate (1) and the lateral wall of first reinforcing plate (71).