Curve section small-section box culvert haunching lining trolley

Abstract

The utility model discloses a curved section small section box culvert haunching lining trolley which comprises a trolley body and a formwork assembly composed of a top formwork, a pair of side wall formworks and a pair of haunching formworks, the lining trolley is formed by splicing at least two trolley sections, the bottom of each trolley section is provided with a walking wheel, and the bottom of each trolley section is provided with a walking wheel. An automatic vertical telescopic driving assembly is arranged between the top formwork and the top of the trolley body, side formwork supporting rods are arranged between the two side wall formworks and the side face of the trolley body, and haunching supporting rods are obliquely installed on the haunching formwork and the trolley body. And the two haunching templates are respectively hinged between the side wall template and the top template on the corresponding side. A detachable assembled trolley is adopted in box culvert construction, the trolley can be used in a whole-section mode or used separately and independently to achieve rapid construction of the small-curve box culvert, meanwhile, the haunching formwork is installed in a hinged mode, the independent supporting rod is additionally arranged, rapid formwork removal can be achieved under the action of gravity and the telescopic rod, the lining structure construction efficiency is improved, and the construction safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a curved section small-section box culvert axil lining trolley. Background Art

[0002] Conventional box culverts are constructed in the manner of "deep foundation pit excavation → lining structure construction → backfilling". The construction of the axil lining structure generally adopts full-floor support construction. Workers in a narrow space not only have low construction efficiency, but also easily cause fire, suffocation and other situations during hot work, posing a high safety risk. When the box culvert line is a curve, the lining structure is slowly formed, and the deep foundation pit is exposed for a long time. When encountering broken rock formations and rock formations rich in groundwater, it is easy to cause safety risks such as foundation pit collapse. If a lining trolley is used, it is difficult to carry out construction in the curved section. The lining trolley walking on the working surface will not easily increase the construction difficulty, and the formwork support of the lining trolley is generally divided into top plate steel formwork and side wall steel formwork, but for the axil lining structure, it cannot be demolded normally. Utility Model Content

[0003] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a curved section small-section box culvert lining trolley which can travel on the curved section and realize rapid demoulding.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a curved section small-section box culvert axle lining trolley, comprising a trolley body, and a template assembly consisting of a top template, a pair of side wall templates and a pair of axle templates, the lining trolley is assembled from no less than two sections, and the bottom of each section is equipped with walking wheels, an automatic vertical telescopic drive assembly is provided between the top template and the top of the trolley body, side template support rods are provided between the two side wall templates and the side of the trolley body, and axle support rods are obliquely installed on the axle template and the trolley body; the two axle templates are respectively hinged between the side wall template and the top template on the corresponding side, when the side template support rod and the axle support rod are removed and the automatic vertical telescopic drive assembly is retracted, the top template retracts downward, and under the action of gravity, the axle template drives the side wall template on the corresponding side to move inward, thereby realizing rapid demolding.

[0005] Preferably, the two side wall templates are connected by a side template top push rod at a position above the top of the trolley body, and the side wall template top push rod is hinged to the opposite surfaces of the two side wall templates to achieve mutual support.

[0006] Preferably, two adjacent vehicle sections are assembled by bolts.

[0007] Preferably, the lining trolley is provided with two front and rear sections, one of which is equipped with a motor-driven traveling assembly, and when the two sections are separated, the other section is moved by a winch in cooperation with a loader.

[0008] Preferably, the automatic vertical telescopic drive assembly adopts hydraulic telescoping, and three automatic vertical telescopic drive assemblies are evenly spaced along the width direction on the top of the trolley body.

[0009] Preferably, four side formwork support rods are arranged between the two side wall formworks and the side surface of the trolley body, and the connections between the side formwork support rods and the side wall formworks and the side surface of the trolley body are all hinged.

[0010] The beneficial effects of the utility model are as follows: a detachable assembly trolley is used in the box culvert construction. The trolley can be used in a whole section or separated and used separately to realize the rapid construction of small curved box culverts, which solves the problem of long construction time for curved sections and workers working in narrow spaces, and improves construction efficiency. At the same time, the axil formwork is hingedly installed and a separate support rod is added, which can be quickly removed under the action of gravity and telescopic rods, thereby improving the construction efficiency of the lining structure, increasing the structural stability of the deep foundation pit in the weak surrounding rock section, and reducing the construction safety risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional construction state diagram of the utility model;

[0012] Figure 2 This is a cross-sectional demoulding state diagram of the utility model;

[0013] Figure 3 It is a longitudinal section structure diagram of the utility model;

[0014] In the figure: 1-side wall formwork, 2-top formwork, 3-axillary formwork, 4-side form support rod, 5-side form connecting rod, 6-automatic vertical telescopic drive assembly, 7-axillary support rod. DETAILED DESCRIPTION

[0015] In order to better understand the improvements made by the present invention relative to the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0016] like Figure 1 As shown in FIG. 3, a curved section small-section box culvert with axillary lining trolley is mainly composed of a trolley body and a template assembly.

[0017] The lining trolley is assembled from no less than two sections, and the adjacent sections are assembled by bolts. Each section is equipped with running wheels at the bottom, and tracks for the lining trolley to run are set along the culvert line. When the curved section is constructed, the adjacent sections are separated and used to realize the construction of the curved section box culvert, and each section is equipped with a driving assembly and can move independently. The lining trolley is preferably equipped with two sections in front and behind, one of which is equipped with a motor-driven running assembly. When the two sections are separated, the other section is moved by a winch in cooperation with a loader.

[0018] The template assembly consists of a top template 2, a pair of side wall templates 1 and a pair of axillary templates 3. An automatic vertical telescopic drive assembly 6 is provided between the top template 2 and the top of the trolley body. The automatic vertical telescopic drive assembly 6 adopts hydraulic telescopic. Three automatic vertical telescopic drive assemblies 6 are evenly spaced at the top of the trolley body along the width direction. Side mold support rods 5 are provided between the two side wall templates 1 and the sides of the trolley body. Four side mold support rods 5 are provided between the two side wall templates 1 and the sides of the trolley body, and the connections between the side mold support rods 5 and the side wall templates 1 and the sides of the trolley body are all hinged. The two axillary templates 3 are respectively hinged between the side wall templates 1 and the top template 2 on the corresponding sides. Axillary support rods 7 are obliquely installed between the axillary templates 3 and the trolley body. In order to enhance the supporting strength of the axillary templates 3, the two axillary templates 3 are connected by a side mold top push rod 4 at a position above the top of the trolley body. The axillary top push rod 4 is hinged to the opposite surfaces of the two side wall templates 1 to achieve support.

[0019] When the side form support rods 5 and the axil support rods 7 are removed and the automatic vertical telescopic drive assembly 6 is retracted, the top formwork 2 retracts downward, and under the action of gravity, the axil formwork 3 drives the side wall formwork 1 on the corresponding side to move inward, thereby achieving rapid formwork removal.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A curved section small section box culvert axil lining trolley, comprising a trolley body, and a template assembly consisting of a top template (2), a pair of side wall templates (1) and a pair of axil templates (3), characterized in that: The lining trolley is assembled from no less than two sections, each section is equipped with a running wheel at the bottom, an automatic vertical telescopic drive assembly (6) is provided between the top template (2) and the top of the trolley body, side template support rods (5) are provided between the two side wall templates (1) and the side of the trolley body, and a side template support rod (7) is obliquely installed between the side template (3) and the trolley body; the two side templates (3) are respectively hinged between the side wall template (1) and the top template (2) on the corresponding side, when the side template support rod (5) and the side template support rod (7) are removed and the automatic vertical telescopic drive assembly (6) is retracted, the top template (2) retracts downward, and under the action of gravity, the side template (3) drives the side wall template (1) on the corresponding side to move inward, thereby realizing rapid demoulding.

2. The curved section small section box culvert lining trolley according to claim 1, characterized in that: The two sidewall templates (3) are connected by a side template push rod (4) at a position above the top of the trolley body. The sidewall template push rod (4) is hinged to the opposite surfaces of the two side wall templates (1) to achieve mutual support.

3. The curved section small section box culvert arm lining trolley according to claim 1, characterized in that: The two adjacent sections are assembled by bolts.

4. The curved section small section box culvert lining trolley according to claim 1, characterized in that: The lining trolley is provided with two sections, front and rear, one of which is equipped with a motor-driven traveling assembly. When the two sections are separated, the other section is moved by a winch in cooperation with a loader.

5. The curved section small section box culvert lining trolley according to claim 1, characterized in that: The automatic vertical telescopic drive assembly (6) adopts hydraulic telescoping, and three automatic vertical telescopic drive assemblies (6) are evenly spaced at intervals along the width direction on the top of the trolley body.

6. The curved section small section box culvert lining trolley according to claim 1, characterized in that: Four side formwork support rods (5) are arranged at intervals between the two side wall formworks (1) and the side surfaces of the trolley body, and the connections between the side formwork support rods (5) and the side wall formworks (1) and the side surfaces of the trolley body are all hinged.

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