Variable-aperture self-propelled slab culvert abutment hydraulic formwork trolley

The modularly designed variable-aperture self-propelled culvert slab hydraulic formwork trolley solves the problem that existing trolleys cannot adapt to different heights and spans, achieving resource conservation and improved construction efficiency, and is suitable for highway and railway engineering.

CN223675188UActive Publication Date: 2025-12-16CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG +1
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Patent Information

Application Number
CN202423292019.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-16
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The existing hydraulic formwork trolleys for culverts are basically fixed in height and span, which cannot adapt to the needs of different heights and spans, resulting in waste of resources and inconvenience in construction.

Method used

A variable-aperture self-propelled hydraulic formwork trolley for culvert abutments is designed. It adopts components such as a mobile wheel assembly, trolley frame, hydraulic cylinders, and movable lead screws. It adapts to different apertures through modular installation, uses a hydraulic pump station to control the installation and dismantling of the formwork, and combines safety ladders and guardrails to ensure construction safety.

Benefits of technology

It enables a single trolley to adapt to the construction of culverts with different apertures, reducing resource waste, improving construction efficiency, and simplifying the assembly and disassembly process. It is suitable for widespread application in highway and railway engineering.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of slab culvert equipment for road construction and railway construction, and particularly relates to a variable-aperture self-propelled slab culvert abutment hydraulic formwork trolley which comprises a movable machine wheel set and a walking track. The trolley framework is connected to the top of the movable machine wheel set through bolts, and the top of the trolley framework is connected with a top main beam through a bolt flange; the two inner mold jacking oil cylinders and the two outer mold mounting and dismounting oil cylinders are arranged below the two sides of the trolley framework, and the adjacent inner mold jacking oil cylinder and outer mold mounting and dismounting oil cylinder are arranged below the two sides of the trolley framework. The two outer side templates are arranged on the adjacent outer mold mounting and dismounting oil cylinders; the device is good in integrity, high in simplicity and convenient to disassemble and assemble during transition, manpower and material resources are saved, the working efficiency can be greatly improved, meanwhile, the hole diameter range of the constructed slab culvert basically covers most sizes of slab culverts in China, and the device is particularly suitable for being applied and popularized in the field and quite wide in market prospect.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cover slab culvert equipment for highway construction and railway construction, and particularly relates to a variable-aperture self-propelled cover slab culvert body hydraulic formwork trolley. BACKGROUND

[0002] In the prior art, a cover slab culvert is a building structure composed of a cover slab, a cap, a body, a foundation and expansion joints. The filling height thereof is usually between 1 and 8 meters, and can even reach 12 meters. The cover slab culvert is widely used in highway and railway engineering construction due to its simple structure, convenient construction and strong flood discharge capacity. In the prior art, the hydraulic formwork trolley needs to be configured according to the types of the cover slab culvert aperture of the project during use. Due to the different requirements of the terrain, the position of the culvert and the passage and flood discharge, the aperture of the cover slab culvert cannot be completely unified in design. The existing culvert body hydraulic formwork trolley is basically fixed in height and span, and cannot adapt to different heights and spans, which leads to the need for multiple aperture hydraulic formwork trolleys to be configured according to the actual situation of the project during construction, resulting in serious waste of resources.

[0003] Therefore, the present application provides a variable-aperture self-propelled cover slab culvert body hydraulic formwork trolley to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem of the culvert body hydraulic formwork trolley in the prior art, which is basically fixed in height and span and cannot adapt to different heights and spans, and provides a variable-aperture self-propelled cover slab culvert body hydraulic formwork trolley.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A variable-aperture self-propelled cover slab culvert body hydraulic formwork trolley comprises a mobile wheel set and a walking track.

[0007] A trolley framework is connected to the top of the mobile wheel set by bolts, and a top main beam is connected to the top of the trolley framework by bolt flanges.

[0008] Two inner mold jacking cylinders and two outer mold dismounting cylinders are arranged below the two sides of the trolley framework.

[0009] Two outer side forms are arranged on the adjacent outer mold dismounting cylinders.

[0010] A plurality of hydraulic cylinders are arranged in the trolley framework.

[0011] A plurality of movable screw rods are arranged in the trolley framework, and the movable screw rods are located on the left side of the hydraulic oil cylinders;

[0012] Two inner side forms are arranged, the inner side form on the left side of the right side form is connected with the plurality of hydraulic oil cylinders, and the inner side form on the right side of the left side form is connected with the plurality of movable screw rods, and the inner side forms are connected with the adjacent inner form jacking oil cylinders.

[0013] As a preferred scheme of the utility model, the inner side forms and the outer side forms are connected with the construction platforms through bolts.

[0014] As a preferred scheme of the utility model, the trolley framework is provided with a hydraulic pump station, and the hydraulic pump station is connected with the inner form connecting hydraulic oil cylinders, the inner form jacking oil cylinders and the outer form mounting and dismounting oil cylinders through oil pipes.

[0015] As a preferred scheme of the utility model, the outer side of the trolley framework is provided with a safety ladder and a safety fence.

[0016] Beneficial effects:

[0017] 1, the variable aperture self-propelled cover plate culvert body hydraulic form trolley of this kind of structure form, simple structure, clever design, adopt modular installation;

[0018] 2, through the combination between different size trolley framework modules inside, the cover plate culvert of different aperture can be adapted, the truss support system has strong compatibility, and a single trolley can meet the construction of different project different culvert aperture size, that is, the cover plate culvert of 2.0m-8.0m aperture can be universal, the trolley device is connected by connecting steel plates and bolts, and each component is convenient to disassemble and assemble, the walking device is arranged at the lower part of the framework, and the whole can be moved by using the lower walking device during construction.

[0019] In the utility model, the device has the advantages of good integrity, strong simplicity, convenient disassembly and assembly during scene change, saved manpower and material resources, greatly improved work efficiency, basically covered the aperture range of the cover plate culvert of most sizes in China, and is particularly suitable for popularization and application in the field, and has very broad market prospects. DRAWINGS

[0020] Fig. 1 It is a front view structural schematic diagram of the utility model;

[0021] Fig. 2 It is a side view structural schematic diagram of the utility model;

[0022] Fig. 3 It is a top view structural schematic diagram of the utility model.

[0023] In the figure: 1, mobile wheel set; 2, track; 3, trolley framework; 4, hydraulic cylinder; 5, movable screw rod; 6, hydraulic pump station; 7, inner side formwork; 8, inner form lifting cylinder; 9, top main beam; 10, outer form dismounting cylinder; 11, outer side formwork; 12, construction platform; 13, safety ladder; 14, safety guardrail. DETAILED DESCRIPTION

[0024] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0025] EMBODIMENT

[0026] Referring to Figs. 1-3 A variable-aperture self-propelled cover slab culvert body hydraulic formwork trolley comprises a mobile wheel set 1 and a track 2.

[0027] A trolley framework 3 is bolted to the top of the mobile wheel set 1, and the top of the trolley framework 3 is connected with a top main beam 9 through a bolted flange.

[0028] Two inner form lifting cylinders 8 and two outer form dismounting cylinders 10 are arranged below the two sides of the trolley framework 3.

[0029] Two outer side formworks 11 are arranged on the adjacent outer form dismounting cylinders 10.

[0030] A plurality of hydraulic cylinders 4 are arranged in the trolley framework 3.

[0031] A plurality of movable screw rods 5 are arranged in the trolley framework 3, and the movable screw rods 5 are located on the left side of the hydraulic cylinders 4.

[0032] Two inner side formworks 7 are connected with the plurality of hydraulic cylinders 4 on the left side of the inner side formwork 7 on the right side, and connected with the plurality of movable screw rods 5 on the right side of the inner side formwork 7 on the left side, and the inner side formwork 7 is connected with the adjacent inner form lifting cylinder 8.

[0033] As a preferred scheme of the utility model, the inner side formwork 7 and the outer side formwork 11 are both connected with a construction platform 12 through bolts on the top, and the construction platform 12 can be connected with the inner side formwork 7 on the ground, thereby avoiding high-altitude operation.

[0034] As a preferred scheme of the utility model, the trolley framework 3 is internally provided with a hydraulic pump station 6, and the hydraulic pump station 6 is connected with the inner mold connecting hydraulic oil cylinder 4, the inner mold jacking oil cylinder 8 and the outer mold mounting and dismounting oil cylinder 10 through an oil pipe.

[0035] As a preferred scheme of the utility model, the outer side of the trolley framework 3 is provided with a safety ladder 13 and a safety guardrail 14, and the safety ladder 13 and the safety guardrail 14 play a safety protection role and prevent falling.

[0036] The utility model discloses a working principle: the combination between different size trolley framework 3 modules in the inside can adapt to the cover plate culvert of different aperture, reduces investment and material waste, when device assembly, first install the track 2, then install the mobile wheel group 1 above it, carry out trolley framework 3 assembly above the mobile wheel group 1, then install hydraulic pump station 6 in trolley framework 3, simultaneously install the inner side formwork 7, the inner mold connecting hydraulic oil cylinder 4 and the inner mold connecting movable lead screw 5 on both sides of trolley framework 3, when the inner side formwork 7 is installed, the construction platform 12 is connected into a whole with the inner side formwork 7 in advance, then install the top girder 9, and install the inner mold jacking oil cylinder 8 and the outer mold mounting and dismounting oil cylinder 10 below the top girder 9, then carry out the outer side formwork 11 installation, when installation, the construction platform 12 is connected into a whole with the outer side formwork 11 in advance, then connect and debug all hydraulic systems with hydraulic pump station 6, then connect and debug the inner mold jacking oil cylinder 8, the inner side formwork 7, the outer mold mounting and dismounting oil cylinder 10 and the outer side formwork 11, finally install the safety ladder 13 and the safety guardrail 14 in place, and the assembly is completed;

[0037] After device assembly is completed, the inner mold connecting hydraulic oil cylinder 4 and the inner mold jacking oil cylinder 8 are controlled through hydraulic pump station 6, and the movable lead screw 5 length is adjusted, drives the inner side formwork 7 to install in place, then the outer mold mounting and dismounting oil cylinder 10 is controlled to move downwards and inwards through hydraulic pump station 6, drives the outer side formwork 11 to install in place, realizes the fixation of the target cover plate culvert trolley body formwork system, forms an integral support structure, ensures the stability of the culvert trolley body concrete pouring process, after the target cover plate culvert trolley body single length construction is completed, the outer mold mounting and dismounting oil cylinder 10 is controlled to move upwards and outwards through hydraulic pump station 6, drives the outer side formwork 11 to be removed, then the inner mold connecting hydraulic oil cylinder 4 and the inner mold jacking oil cylinder 8 are controlled through hydraulic pump station 6, and the movable lead screw 5 length is adjusted, drives the inner side formwork 7 to be removed, after the outer side formwork 11 and the inner side formwork 7 are removed, the device is realized to move forward to the next trolley body section of the target cover plate culvert through the control of the mobile wheel group 1, and the above method is circularly operated;

[0038] After the target cover slab culvert body construction is completed, the device is dismantled, and the dismantling is sequentially performed in reverse order according to the installation order, that is, the principle of first installation and then dismantling, and the trolley device is connected by connecting steel plates and bolts, the components are convenient to disassemble and assemble, the operation efficiency is improved, and the scene changing speed is fast.

[0039] The above merely describes a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, and all should be covered within the protection scope of the present application.

Claims

1. A variable-aperture self-propelled hydraulic formwork trolley for culvert piers, characterized in that, include The moving wheel assembly (1) and the running track (2); The trolley frame (3) is bolted to the top of the mobile wheel assembly (1), and the top of the trolley frame (3) is bolted to the top of the main beam (9). Two inner mold lifting cylinders (8) and two outer mold installation and removal cylinders (10) are provided on the lower sides of the trolley frame (3). Two outer templates (11) are provided on adjacent outer mold installation and removal cylinders (10); Multiple hydraulic cylinders (4) are installed inside the trolley frame (3); Multiple movable lead screws (5) are arranged inside the trolley frame (3) and the movable lead screws (5) are located on the left side of the hydraulic cylinder (4); Two inner templates (7), the left side of the right inner template (7) is connected to multiple hydraulic cylinders (4), the right side of the left inner template (7) is connected to multiple movable screws (5), and the inner template (7) is connected to the adjacent inner mold lifting cylinder (8).

2. The variable aperture self-propelled culvert pier hydraulic formwork trolley according to claim 1, characterized in that, The tops of both the inner template (7) and the outer template (11) are bolted to a construction platform (12).

3. The variable aperture self-propelled culvert pier hydraulic formwork trolley according to claim 1, characterized in that, The trolley frame (3) is equipped with a hydraulic pump station (6), and the hydraulic pump station (6) is connected to the hydraulic cylinder (4) for connecting the inner mold, the inner mold lifting cylinder (8), and the outer mold installation and removal cylinder (10) through oil pipes.

4. The variable aperture self-propelled culvert pier hydraulic formwork trolley according to claim 1, characterized in that, The outer side of the trolley frame (3) is provided with a safety ladder (13) and a safety railing (14).