CN219197399U

CN219197399U - Liftable construction trolley suitable for urban rail transit tunnel section

Info

Publication number: CN219197399U
Application number: CN202222997277.9U
Authority: CN
Inventors: 韩文丰; 张剑; 袁向东; 钟毅; 吴奉杰; 白华; 皇兴; 方虎; 蔡菁; 李媛媛; 李慧
Original assignee: Chengdu Hydropower Construction Engineering Co Ltd of Sinohydro Bureau 7 Co Ltd
Current assignee: Chengdu Hydropower Construction Engineering Co Ltd of Sinohydro Bureau 7 Co Ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-06-16
Anticipated expiration: 2032-11-10

Abstract

A liftable construction trolley suitable for urban rail transit tunnel sections relates to electromechanical installation devices for tunnel sections in urban rail transit engineering. The device comprises a support frame and an operation table top, and the key technology is that the support frame comprises two mutually parallel upright posts and a cross rod, wherein the cross rod is positioned between the two upright posts; the operation table top comprises an upper operation table top and a lower operation table top, the operation table top is supported by the two upright posts, the upper operation table top is provided with an upper bottom frame, and the lower operation table top is provided with a lower bottom frame. The utility model has the beneficial effects that: the track wheel and the supporting roller wheel which can be braked are adopted, the existing bottom plate and the inner wall of the tunnel structure in the tunnel section are utilized, the self-propelled construction trolley can freely move in the tunnel section by manpower or mechanical power, the trolley is stressed safely and reliably, and the trolley can be disassembled, assembled and used for multiple times once. The method can effectively solve a series of safety risk problems that the traditional scaffold construction operation platform is frequently detached or the construction state occupies the space of the track area to influence the running of the track area and the like.

Description

Liftable construction trolley suitable for urban rail transit tunnel section

Technical Field

A liftable construction trolley suitable for urban rail transit tunnel sections relates to electromechanical installation devices for tunnel sections in urban rail transit engineering.

Background

In recent years, the safe, convenient and efficient public transportation mode of underground rail transit is favored by more and more cities and planned and constructed, and the engineering quantity and the scale are continuously increased, so that the construction method of the electromechanical installation and construction process of the subway is also continuously promoted. The subway tunnel section is used as a connecting tie between subway stations and plays an important role in the whole electromechanical installation process. The intelligent power supply and drainage system mainly relates to the professions of interval power illumination, interval water supply and drainage, fire protection, communication signals, looped network power supply and the like. Most structural surfaces in the section are arc-shaped, overhead contact lines are arranged above the sections, rails are arranged right below the sections, and various pipelines are arranged on two sides of the sections. The construction process has the characteristics of numerous professions, long working distance, multiple working points, high working height (2.8 m from the track surface), frequent cross operation, limited space in the section tunnel and the like. Currently, the interval construction mainly adopts the following two modes:

the construction operation platform mainly comprises a cross rod, a longitudinal horizontal rod, a stand column, a transverse horizontal rod, an inclined support rod and a stamped steel scaffold plate, and has the characteristics of good forming quality and good construction safety. However, the platform affects the running of the track area, the number of erection and dismantling times is large in the effective construction period of the tunnel area, the construction work efficiency is low, and the construction cost is high.

The other is a ladder-shaped tool, which is a finished product ascending tool, has the characteristics of convenient use and portability, but the tool is not protected, a tunnel section has a certain gradient, the tool is in an inclined state, safety accidents are easy to occur, and at present, the tool is forbidden by most building units.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an auxiliary tool for construction, which can avoid the interactive interference between the running and construction of the track area and can adapt to various conventional section hole diameters. The technical scheme is as follows:

the utility model provides a liftable construction trolley suitable for urban rail transit tunnel interval, includes support frame and operation mesa, and its key technique is that the support frame includes stand and horizontal pole, and the stand is two that are parallel to each other, and the horizontal pole is located between two stands; the operation table top comprises an upper operation table top and a lower operation table top, the operation table top is supported by the two upright posts together, the upper operation table top is provided with an upper bottom frame, and the lower operation table top is provided with a lower bottom frame; wheel shafts are respectively arranged on the outer walls of the two sides of the lower bottom frame, one end of each wheel shaft is provided with a supporting roller, the other end of each wheel shaft is provided with a supporting rod and a pull rod, and the other ends of the supporting rods and the pull rods are respectively fixed on the upright posts; and a lower inclined strut is arranged on the lower bottom frame, and the lower end of the lower inclined strut is connected with a rail supporting leg.

The stand comprises an upper stand and a lower stand, the lower end of the upper stand is sleeved in the lower stand, and the upper stand and the lower stand control the lifting of the stand through a lifting device.

The lifting device comprises a transmission tooth and a locking device, one end of the transmission tooth is arranged on the upper upright post, the other end of the transmission tooth is arranged on the lower upright post, and the transmission tooth positioned on the lower upright post is meshed with the locking device.

The lifting device can also be a hydraulic rod arranged on the upper upright post and the lower upright post, and the upper end of the hydraulic rod drives the upper upright post to stretch out and draw back.

The other end of the supporting rod is fixed on the lower upright post, and the other end of the pull rod is fixed on the upper upright post.

An upper inclined strut is arranged between the upper bottom frame and the upright post.

The upper end of the upright post is provided with an adjustable block, the adjustable block is provided with clamping teeth, one end of the upper inclined strut supports the upper bottom frame through a first hinge, and the other end of the upper inclined strut is supported on the clamping teeth.

The bottom end of the upright post is provided with a rail wheel capable of braking through a collet, so that the trolley can walk by itself.

Compared with the prior art, the utility model has the following beneficial effects:

1. the track wheel and the supporting roller wheel which can be braked are adopted, the existing bottom plate and the inner wall of the tunnel structure in the tunnel section are utilized, the self-propelled construction trolley can freely move in the tunnel section by manpower or mechanical power, the trolley is stressed safely and reliably, and the trolley can be disassembled, assembled and used for multiple times once. The method can effectively solve a series of safety risk problems that the track area running and the like are influenced due to the fact that the track area space is occupied by the traditional scaffold construction operation platform in a frequently-installed and dismantled mode or the construction state, achieves the purpose of safe construction, and has enough safety and convenience.

2. The sectional sleeve type upright post is adopted, and the lifting of the upright post is regulated by utilizing a plurality of forms such as a gear mechanical transmission device arranged in the upper upright post and the lower upright post or a hydraulic rod power device additionally arranged on the side surface, and the self-consistency of the construction trolley to various conventional interval hole diameters is realized by utilizing manual, electric or mechanical power transmission.

3. The trolley adopts a tool type structure, the assembly is modularized, the light-weight design is realized, the factory production is realized, the assembly and disassembly are simple, the transportation is convenient, and the recycling rate is high. The problem that the trolley needs to be removed temporarily when the rail locomotive passes through is effectively avoided, the labor intensity of workers is reduced, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a diagram of the operation of the present utility model;

FIG. 3 is a schematic elevation view of a geared post of the present utility model;

fig. 4 is a schematic view of the hydraulic drive column lifting of the present utility model.

Detailed Description

Referring to fig. 1-4, a liftable construction trolley suitable for an urban rail transit tunnel section comprises a support frame and an operation table top, and is characterized in that the support frame comprises two upright posts 17 and two cross bars 12, wherein the upright posts 17 are parallel to each other left and right, and the cross bars 12 are parallel to each other up and down and are positioned between the two upright posts 17; the operation table top comprises an upper operation table top 1 and a lower operation table top 7, the operation table top is jointly supported by two upright posts 17, the upper operation table top 1 is provided with an upper bottom frame 4, and the lower operation table top 7 is provided with a lower bottom frame 10; wheel shafts 30 are respectively arranged on the outer walls of the two sides of the lower bottom frame 10, a lock catch type supporting roller 8 capable of sliding along the tunnel wall 21 is arranged at one end of each wheel shaft 30, a supporting rod 29 and a pull rod 18 are respectively arranged at the other end of each wheel shaft 30, the other ends of the supporting rods 29 and the pull rods 18 are respectively fixed on the upright posts 17, the supporting rods 29 and the pull rods 18 are of rotatable structures, and the extension or retraction of each wheel shaft 30 can be adjusted through the supporting rods 29 and the pull rods 18 according to actual conditions on site, so that the fit degree of the supporting roller 8 and the tunnel wall 21 is adjusted; the lower inclined strut 9 is arranged on the lower bottom frame 10, and the lower end of the lower inclined strut 9 is connected with the rail supporting leg 15 so as to ensure the safety and stability of the trolley.

The upright 17 comprises an upper upright 17.1 and a lower upright 17.2, the lower end of the upper upright 17.1 is sleeved in the lower upright 17.2 to form a telescopic upright, and the upper upright 17.1 and the lower upright 17.2 control the lifting of the uprights through a lifting device.

The lifting device comprises a transmission tooth 23 and a locking device 25, one end of the transmission tooth 23 is arranged on the upper upright 17.1, the other end of the transmission tooth is arranged on the lower upright 17.2, the transmission tooth 23 positioned on the lower upright 17.2 is meshed with the locking device 25, the locking device 25 is a wheel disc with external teeth, the external teeth are meshed with the transmission tooth 23, and the locking device 25 is driven to rotate by a rocker 24.

The lifting device can also be a hydraulic rod 26 arranged on the upper upright 17.1 and the lower upright 17.2, the upper end of the hydraulic rod 26 drives the upper upright 17.1 to stretch and retract, and the hydraulic rod 26 is powered by a hydraulic pump 27.

The other end of the supporting rod 29 is fixed on the lower upright 17.2, and the other end of the pull rod 18 is fixed on the upper upright 17.1.

An upper diagonal bracing 5 is arranged between the upper bottom frame 4 and the upright 17.

An adjustable block 6 is arranged at the upper end of the upright 17, a clamping tooth 6.1 is arranged on the adjustable block 6, one end of the upper inclined strut 5 supports the upper bottom frame 4 through a first hinge 4.1, and the other end is supported on the clamping tooth 6.1. The angle of the upper bottom frame 4 is adjusted by the latch 6.1 and the first hinge 4.1, so that the upper operating table top 1 is an adjustable working surface.

The other end of the upper bottom frame 4 can also be supported on the upper end of the upright 17 through a first hinge 4.1.

The bottom of the upright 17 is provided with a brake-able rail wheel 14 through a base 13, the rail wheels are divided into two types, one type is suitable for the parallel rail wheels under the condition that a high-grade shock absorption track bed rail area has no open ditch, the other type is suitable for the parallel rail wheels with limit contours under the condition that a common track bed rail area has an open ditch, and a transmission structure is arranged to enable the trolley to walk by itself.

The detachable railing 19 is respectively arranged on the upper bottom frame 4 and the lower bottom frame 10 through the bolt holes 3, the dense mesh net 2 is arranged on the detachable railing 19 to form an upper operation table top 1 and a lower operation table top 7, and an aluminum alloy scaffold board 20 is paved on the operation table top. The periphery of the operating table top is provided with a detachable railing 19.

One end of the rail supporting leg 15 is connected with a rail auxiliary wheel, the rail auxiliary wheel slides along the rail, and the other end of the rail supporting leg 15 is connected with the upright 17 by adopting a second hinge 15.1, so that the rail supporting leg is convenient to adjust and lock. The main wheel rail wheel of the trolley stands at the edge of the rail ditch during working, and the rail auxiliary wheel is clung to the side edge of the rail 22, so that the whole construction trolley is in a safe balance and stable state.

The lower end of the upright 17 is provided with the scissor support 16, and the scissor support 16 is connected with the upright 17 by a bolt, so that the installation and the disassembly are convenient.

A stair 11 is arranged on the upright 17 for an operator to operate the table top up and down.

The figure 28 shows a remote control switch.

Claims

1. The lifting construction trolley suitable for the urban rail transit tunnel section comprises a support frame and an operation table top, and is characterized in that the support frame comprises two upright posts (17) and two cross bars (12), the two upright posts (17) are parallel to each other, and the cross bars (12) are positioned between the two upright posts (17); the operation table top comprises an upper operation table top (1) and a lower operation table top (7), the operation table top is supported by two upright posts (17), the upper operation table top (1) is provided with an upper bottom frame (4), and the lower operation table top (7) is provided with a lower bottom frame (10); wheel shafts (30) are respectively arranged on the outer walls of the two sides of the lower bottom frame (10), one end of each wheel shaft (30) is provided with a supporting roller (8), the other end of each wheel shaft is respectively provided with a supporting rod (29) and a pull rod (18), and the other ends of the supporting rods (29) and the pull rods (18) are respectively fixed on the upright posts (17); the lower layer diagonal bracing (9) is arranged on the lower bottom frame (10), and the lower end of the lower layer diagonal bracing (9) is connected with a track supporting leg (15).

2. The liftable construction trolley suitable for the urban rail transit tunnel section according to claim 1, wherein the upright post (17) comprises an upper upright post (17.1) and a lower upright post (17.2), the lower end of the upper upright post (17.1) is sleeved in the lower upright post (17.2), and the upper upright post (17.1) and the lower upright post (17.2) control the lifting of the upright post through a lifting device.

3. The lifting construction trolley suitable for the urban rail transit tunnel section according to claim 2, characterized in that the lifting device comprises a transmission tooth (23) and a locking device (25), one end of the transmission tooth (23) is arranged on the upper upright (17.1), the other end is arranged on the lower upright (17.2), and the transmission tooth (23) positioned on the lower upright (17.2) is meshed with the locking device (25).

4. The lifting construction trolley suitable for the urban rail transit tunnel section according to claim 2, wherein the lifting device is a hydraulic rod (26) arranged on the upper upright post (17.1) and the lower upright post (17.2), and the upper end of the hydraulic rod (26) drives the upper upright post (17.1) to stretch.

5. The liftable construction trolley suitable for the urban rail transit tunnel section according to claim 1, wherein the other end of the supporting rod (29) is fixed on the lower upright post (17.2), and the other end of the pull rod (18) is fixed on the upper upright post (17.1).

6. The liftable construction trolley suitable for the urban rail transit tunnel section according to claim 1 is characterized in that an upper diagonal bracing (5) is arranged between the upper bottom frame (4) and the upright post (17).

7. The lifting construction trolley suitable for the urban rail transit tunnel section according to claim 6 is characterized in that an adjustable block (6) is arranged at the upper end of the upright post (17), clamping teeth (6.1) are arranged on the adjustable block (6), one end of an upper inclined strut (5) supports an upper bottom frame (4) through a first hinge (4.1), and the other end of the upper inclined strut is supported on the clamping teeth (6.1).

8. The liftable construction trolley suitable for the urban rail transit tunnel section according to claim 1 is characterized in that the rail wheels (14) are arranged at the bottom ends of the upright posts (17) through the bottom brackets (13).

9. The liftable construction trolley suitable for the urban rail transit tunnel section according to claim 1 is characterized in that detachable rails (19) are respectively arranged on the upper bottom frame (4) and the lower bottom frame (10), and a dense mesh net (2) is arranged on the detachable rails (19) to form an upper operation table top (1) or a lower operation table top (7).

10. The liftable construction trolley suitable for the urban rail transit tunnel section according to claim 1 is characterized in that one end of a rail supporting leg (15) is connected with a rail auxiliary wheel, and the other end of the rail supporting leg (15) is connected with a stand column (17) by adopting a second hinge (15.1).