Automobile crane running simple trestle across post-pouring belt

Abstract

A kind of simple and convenient stack bridge of automobile crane across post-cast strip, including front approach bridge, rear approach bridge and main body stack bridge, front approach bridge, rear approach bridge are identical in structure, symmetrically arranged in the two sides of main body stack bridge, the two sides of main body stack bridge are supported on the concrete beam of the two sides of post-cast strip by flexible cushion block, and front approach bridge, rear approach bridge are supported on concrete floor by approach bridge support beam, flexible cushion block is the block structure after the superposition of multiple steel plates and multiple rubber plates, a plurality of flexible cushion blocks are connected head to tail along concrete beam and form the main support of the bottom of main body stack bridge.This application is easy to install, with large span, easy to disassemble, high utilization rate, smooth traffic for cars, high installation efficiency, high efficiency for automobile crane to pass, low cost, can be widely used.

Description

Technical Field

[0001] This application relates to the field of building construction, specifically to a simple trestle bridge for mobile cranes to travel across post-cast strips. Background Technology

[0002] Commonly used trestle bridges are made of welded steel sections, but their disadvantages are:

[0003] The steel structure is heavy and bulky, requiring high-quality supporting foundations and increasing civil engineering costs.

[0004] The construction period is long, requiring on-site hoisting and welding, resulting in low installation efficiency and impacting the construction schedule.

[0005] It has poor flexibility, a fixed structure, is difficult to adjust or expand, and has weak adaptability.

[0006] High maintenance costs; welds are susceptible to corrosion or fatigue cracking, requiring regular inspection and anti-corrosion treatment.

[0007] Transportation is restricted; the components are large in size; large equipment is required for transportation and hoisting; and construction is difficult when the site is limited.

[0008] It is generally not economical, but it requires a large amount of steel, has a long cycle, and has a relatively high overall cost.

[0009] Steel welded trestle bridges are suitable for scenarios with large loads and long-term fixed locations, but are uneconomical for temporary projects or projects that require frequent modifications. Utility Model Content

[0010] The purpose of this invention is to provide a trestle bridge that allows for easy movement of truck cranes across post-cast strips, thereby addressing the problems in the background art.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A simple trestle bridge for cranes to travel across a post-cast strip includes a front approach bridge, a rear approach bridge, and a main trestle bridge. The front and rear approach bridges are identical in structure and symmetrically arranged on both sides of the main trestle bridge. The main trestle bridge is supported on both sides of the post-cast strip by flexible pads on concrete beams. The front and rear approach bridges are supported on a concrete floor slab by approach bridge support beams. The flexible pads are block-shaped structures composed of multiple steel plates and multiple rubber plates stacked together. Several of these flexible pads are connected end-to-end along the concrete beams to form the main support at the bottom of the main trestle bridge.

[0013] More preferably, the rubber sheet and the steel plate are stacked alternately from bottom to top to form a single flexible pad, and the adjacent rubber sheets and steel plates are connected by an adhesive.

[0014] Furthermore, the flexible pad has tongue and groove joints on both the left and right sides, and adjacent flexible pads are connected by insert rods after their tongue and groove joints overlap.

[0015] Furthermore, the top surface of the insertion rod is flush with the top surface of the flexible pad, and the lower part is inserted into a reserved hole in the concrete beam.

[0016] Furthermore, at least two insertion rods are provided at the connection point of the two flexible pads that are connected on the left and right sides.

[0017] Furthermore, the main trestle bridge is assembled from roadbed boxes.

[0018] Furthermore, both the front approach bridge and the rear approach bridge include inclined steel plate surfaces and approach bridge support beams. The upper end of the inclined steel plate surface overlaps with the top surface of the main trestle bridge, and the lower end abuts against the concrete floor slab. The concrete floor slab is provided with bolts for limiting the front approach bridge and the rear approach bridge.

[0019] In addition, the approach bridge support beam consists of an I-beam and an L-shaped top support. The vertical part of the L-shaped top support is welded and fixed to the top surface of the I-beam. The horizontal part of the L-shaped top support is directly supported on the bottom surface of the inclined steel plate with the same slope as the inclined steel plate. The approach bridge support beam is directly welded and fixed to the inclined steel plate, or is limited by a limiting groove provided on the inclined steel plate.

[0020] More preferably, the width of the front approach bridge and the rear approach bridge is at least 1.5m greater than the width of the main trestle bridge, and the distance between adjacent approach bridge support beams is less than 1m.

[0021] Compared with the prior art, this utility model has the following features and beneficial effects:

[0022] This application is easy to install, has a large span, is easy to disassemble, has a high utilization rate, provides relatively smooth vehicle passage, has high installation efficiency, high crane passage efficiency, and low cost. The flexible pads can assist the trestle in supporting the main concrete beams, and the flexible pads can be extended to match the roadbed boxes, allowing for flexible adjustment of the length and width of the entire trestle. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a simple trestle structure for a truck crane to travel across a post-cast strip, as described in this application.

[0024] Figure 2 This is a schematic diagram of the front and rear approach bridge structures involved in this application;

[0025] Figure 3 This is a schematic diagram of the flexible pad structure involved in this application.

[0026] Attached reference numerals: 1-Front approach bridge; 2-Rear approach bridge; 3-Main trestle bridge; 4-Post-cast strip; 5-Concrete beam; 6-Approach bridge support beam; 7-Concrete floor slab; 8-Flexible pad block; 81-Tongue and groove joint; 82-Insertion rod; 9-Angled steel plate surface. Detailed Implementation

[0027] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0028] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0029] Example 1

[0030] A type of easy-to-use trestle bridge for truck cranes to cross post-cast strips, such as Figures 1-3 As shown, it includes a front approach bridge 1, a rear approach bridge 2, and a main trestle bridge 3. The front approach bridge 1 and the rear approach bridge 2 have the same structure and are symmetrically arranged on both sides of the main trestle bridge 2. The main trestle bridge 3 is supported on both sides of the concrete beams 5 on both sides of the post-cast strip 4 by flexible pads 8. The front approach bridge 1 and the rear approach bridge 2 are supported on the concrete floor slab 7 by approach bridge support beams 6. The flexible pads 8 are block structures composed of multiple steel plates and multiple rubber plates stacked together. Several flexible pads 8 are connected end to end along the concrete beams 5 to form the main support at the bottom of the main trestle bridge 3.

[0031] Example 2

[0032] Based on Embodiment 1, rubber sheets and steel plates are stacked alternately from bottom to top to form a single flexible pad. Adjacent rubber sheets and steel plates are connected by adhesive. Both sides of the flexible pad 8 are provided with tongue and groove joints 81. After the tongue and groove joints 81 of adjacent flexible pads 8 are stacked together, they are connected by insert rods 82. After the adjacent tongue and groove joints are spliced ​​together, a Z-shaped splice joint is formed. The top surface of the insert rod 82 is flush with the top surface of the flexible pad 8, and the lower part is inserted into the reserved hole on the concrete beam 5. At least two insert rods 82 are provided at the connection of two flexible pads 8 connected on the left and right. The main trestle is assembled from the roadbed box 2. The front approach bridge 1 and the rear approach bridge 2 both include inclined steel plate surface 9 and approach bridge support beam 6. The top surface of the main trestle bridge 2 on the upper end of the inclined steel plate surface 9 overlaps, and the lower end abuts against the concrete floor slab 7. The concrete floor slab 7 is provided with anchor posts for limiting the front approach bridge 1 and the rear approach bridge 2. The anchor posts can be made of steel bars, which are convenient for later cutting.

[0033] Example 3

[0034] Based on Embodiment 2, the approach bridge support beam 6 includes an I-beam and an L-shaped top support. The vertical part of the L-shaped top support is welded and fixed to the top surface of the I-beam. The horizontal part of the L-shaped top support is directly supported on the bottom surface of the inclined steel plate 9 with the same slope as the inclined steel plate 9. The approach bridge support beam 6 is directly welded and fixed to the inclined steel plate 9, or is limited by a limiting groove provided on the inclined steel plate 9. The width of the front approach bridge 1 and the rear approach bridge 2 is at least 1.5m greater than the width of the main trestle bridge 3, and the distance between adjacent approach bridge support beams 6 is less than 1m.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A simple trestle bridge for cranes to travel across a post-cast strip, comprising a front approach bridge (1), a rear approach bridge (2), and a main trestle bridge (3), characterized in that: The front approach bridge (1) and the rear approach bridge (2) have the same structure and are symmetrically arranged on both sides of the main trestle bridge (3). The main trestle bridge (3) is supported on both sides of the concrete beams (5) on both sides of the post-cast strip (4) by flexible pads (8). The front approach bridge (1) and the rear approach bridge (2) are supported on the concrete floor slab (7) by approach bridge support beams (6). The flexible pads (8) are block structures made up of multiple steel plates and multiple rubber plates. Several of the flexible pads (8) are connected end to end along the concrete beams (5) to form the main support at the bottom of the main trestle bridge (3).

2. The simple stack bridge for facilitating the travel of a car hoist across a post-pouring belt according to claim 1, characterized in that: Rubber sheets and steel plates are stacked alternately from bottom to top to form a single flexible pad, and adjacent rubber sheets and steel plates are connected by an adhesive.

3. The easy-to-drive trestle bridge for truck cranes spanning post-cast strips as described in claim 1, characterized in that: The flexible pad (8) has tongue and groove joints (81) on both the left and right sides. After the tongue and groove joints (81) of adjacent flexible pads (8) are overlapped, they are connected by insert rods (82).

4. The simple and convenient cross-pouring belt automobile hoist traveling stack bridge according to claim 3, characterized in that: The top surface of the insertion rod (82) is flush with the top surface of the flexible pad (8), and the lower part is inserted into the reserved hole on the concrete beam (5).

5. A cross-jack convenient stackable bridge for a post-pouring automobile hoist according to claim 4, characterized in that: At least two insertion rods (82) are provided at the connection point of the two flexible pads (8) that are connected on the left and right.

6. The simple and convenient automobile hoist running stack bridge across the post-poured belt according to claim 1, characterized in that: The main trestle bridge (3) is formed by assembling roadbed boxes.

7. The simple and convenient automobile hoist traveling stack bridge across the post-poured belt according to claim 1, characterized in that: The front approach bridge (1) and the rear approach bridge (2) both include an inclined steel plate surface (9) and an approach bridge support beam (6). The upper end of the inclined steel plate surface (9) overlaps with the top surface of the main trestle bridge (3), and the lower end abuts against the concrete floor slab (7). The concrete floor slab (7) is provided with bolts for limiting the front approach bridge (1) and the rear approach bridge (2).

8. The easy-to-drive trestle bridge for truck cranes spanning post-cast strips as described in claim 1, characterized in that: The approach bridge support beam (6) consists of an I-beam and an L-shaped top support. The vertical part of the L-shaped top support is welded to the top surface of the I-beam, and the horizontal part of the L-shaped top support is directly supported on the bottom surface of the inclined steel plate (9) with the same slope as the inclined steel plate (9). The approach bridge support beam (6) is directly welded to the inclined steel plate (9) or limited by a limiting groove provided on the inclined steel plate (9).

9. A simple stack bridge for the automobile crane to travel across the post-poured belt according to any one of claims 1-8, characterized in that: The width of the front approach bridge (1) and the rear approach bridge (2) is at least 1.5m greater than the width of the main trestle bridge (3), and the distance between adjacent approach bridge support beams (6) is less than 1m.

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