Fabricated ladder cage for bridge pier construction

Abstract

The utility model provides an assembly type ladder cage for bridge pier construction, which comprises unit ladder cages which are stacked and detachably arranged from bottom to top, a support frame and a group of stairs fixed in the support frame, the supporting frame comprises four vertical stand columns, square connecting pipes are fixedly connected to the four vertical stand columns in an inserted mode, the square connecting pipes are fixedly connected to the lower ends and the upper ends of the vertical stand columns located on the topmost layer of the unit elevator cage in an inserted mode, the square connecting pipes are arranged at the lower ends of the other unit elevator cages, and the four square connecting pipes are provided with a horizontal frame. The horizontal frame comprises two transverse horizontal rods and two longitudinal horizontal rods, the two transverse horizontal rods and the two longitudinal horizontal rods are all detachably connected with the connecting square pipes, the walking platform is located in the horizontal frame, and a pier hole is reserved in the middle of the walking platform.

Description

Technical Field

[0001] The present application relates to the technical field of bridge pier construction, and in particular to an assembled ladder cage for bridge pier construction. Background Art

[0002] The bridge pier is an important component of the bridge that supports the bridge deck load. It is usually located in the river, valley, railway or road below the bridge deck. Its function is to transfer the bridge deck load to the lower structure, while supporting and fixing the bridge deck structure. Bridge piers are usually built with concrete, reinforced concrete and other materials. Because the bridge piers are high, workers need to build a higher platform to facilitate construction. Generally, scaffolding will be built in the construction area, or some integrated ladder cages on the market. At present, both methods have certain defects. For example, building scaffolding is time-consuming and labor-intensive, which affects the construction progress. The integrated ladder cage can be built faster, but as the height increases, it may require multiple layers. The processing price of the integrated frame is relatively high, and it does not have good versatility. In addition, due to the heavy weight of the frame of the integrated ladder cage, large equipment is required to participate in the construction at the same time. Therefore, a ladder cage that can be built quickly and minimize the construction cost is needed. Summary of the invention

[0003] The problem to be solved by the utility model is to provide an assembled ladder cage for bridge pier construction, so as to solve the problems of complicated installation of current scaffolding-type construction and high construction cost of integrated frame.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problems is: an assembled ladder cage for bridge pier construction, comprising a unit ladder cage stacked and detachably arranged from bottom to top, the ladder cage comprising a support frame and a group of stairs fixed in the support frame; the support frame comprises four vertical columns, the four vertical columns are plugged and fixed with connecting square tubes, wherein the lower ends and upper ends of the vertical uprights of the unit ladder cage at the top layer are both plugged and fixed with connecting square tubes, and the lower ends of the remaining unit ladder cages are provided with connecting square tubes, and the four connecting square tubes are provided with horizontal frames; the horizontal frame is formed by four horizontal rods connected end to end and fixed on the connecting square tube, the four horizontal rods include two transverse horizontal rods and two longitudinal horizontal rods, the two transverse horizontal rods and the two longitudinal horizontal rods are all detachably connected to the connecting square tube, the walking platform is located in the horizontal frame, a bridge pier hole is reserved in the middle of the walking platform, and the stairs are fixed between the upper and lower adjacent horizontal frames for connecting two adjacent walking platforms;

[0005] Through the detachable support frame, the complex structure is minimized to reduce the processing cost of the support frame, and the transportation of parts is also more convenient. No large lifting equipment is required to participate in the construction of the platform, and the adaptability is stronger. The ladder cage is composed of standard unit components, which is easy to assemble and disassemble. The support frame adopts a stable four-corner column structure. Each column is equipped with horizontal and vertical connectors, and the structure is also more stable.

[0006] Preferably, a connecting portion is provided at the lower end of the connecting square tube, and the upper end of the vertical pole is inserted into the connecting portion and fixed by bolts and nuts.

[0007] Preferably, a first slot and a second slot are provided in the middle of the connecting square tube, one end of the transverse horizontal rod is inserted into the first slot and fixed by a fastener, and one end of the longitudinal horizontal rod is inserted into the second slot and fixed by a fastener.

[0008] Preferably, a vertical support rod is arranged between two adjacent horizontal transverse rods, the upper end of the vertical support rod abuts against the lower end surface of the horizontal transverse rod above it, and the lower end of the vertical support rod abuts against the upper end surface of the horizontal transverse rod below it.

[0009] Preferably, a guardrail is further provided on the horizontal frame, and the guardrail is arranged in a circle around the circumference of the horizontal frame. The guardrail includes a guardrail frame welded from square steel and a steel wire mesh laid on the guardrail frame.

[0010] Preferably, four adjusting parts are provided at the bottom of the ladder cage located at the bottom, and the four adjusting parts are respectively connected to the upper parts of four supporting feet with threads, and the lower end surfaces of the supporting feet are against the horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of the utility model after stacking from bottom to top;

[0012] Figure 2 It is a three-dimensional diagram of the support frame of the utility model;

[0013] Figure 3 It is a partial enlarged view of the connecting structure of the square tube of the utility model;

[0014] Illustration: 1. Ladder cage; 1.1. Walking platform; 1.1.1. Bridge pier hole; 1.1.2. Drainage outlet; 1.2. Support frame; 1.2.1. Vertical column; 1.2.2. Horizontal frame; 1.2.21. Horizontal horizontal bar; 1.2.22. Longitudinal horizontal bar; 1.2.23. Connecting square tube; 1.2.231. First slot; 1.2.232. Second slot; 1.2.24. Vertical support bar; 1.3. Stairs; 1.4. Guardrail; 1.5. Adjustment unit; 1.6. Support foot; DETAILED DESCRIPTION

[0015] Before describing in detail any embodiment of the utility model, it should be understood that the utility model is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The utility model can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0016] Furthermore, on the first aspect, in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0017] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

[0018] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0019] See also Figure 1 , an assembled ladder cage for bridge pier construction, comprising a unit ladder cage 1 stacked and detachably arranged from bottom to top, the ladder cage 1 comprising a support frame 1.2 and a set of stairs 1.3 fixed in the support frame 1.2;

[0020] See also Figure 2 , 3The support frame 1.2 includes four vertical columns 1.2.1, and the four vertical columns 1.2.1 are plugged and fixed with connecting square tubes 1.2.23, and the connecting square tubes 1.2.23 are located at the lower ends of the vertical columns 1.2.1 of the unit elevator cage 1.

[0021] The horizontal frame 1.2.2 is formed by four horizontal bars connected end to end and fixed on a connecting square tube 1.2.23. The four horizontal bars include two transverse horizontal bars 1.2.21 and two longitudinal horizontal bars 1.2.22. A first card slot 1.2.231 and a second card slot 1.2.232 are provided in the middle of the connecting square tube 1.2.23. One end of the transverse horizontal bar 1.2.21 is inserted into the first card slot 1.2.231 and fixed by a fastener, and one end of the longitudinal horizontal bar 1.2.22 is inserted into the second card slot 1.2.232 and fixed by a fastener.

[0022] A walking platform 1.1 is installed in the horizontal frame 1.2.2, a pier hole 1.1.1 is reserved in the middle of the walking platform 1.1, and a staircase 1.3 is fixed between the upper and lower adjacent horizontal frames 1.2.2.

[0023] A guardrail 1.4 is also provided on the horizontal frame 1.2.2. The guardrail 1.4 is arranged around the periphery of the horizontal frame 1.2.2. The guardrail 1.4 comprises a guardrail 1.4 frame welded from square steel and a steel wire mesh laid on the guardrail 1.4 frame.

[0024] The vertical columns 1.2.1 of the topmost unit cage 1 are both plugged and fixed with connecting square tubes 1.2.23 at the upper and lower ends.

[0025] See also Figure 1 A vertical support rod 1.2.24 is arranged between two adjacent horizontal horizontal rods 1.2.21, and the upper end of the vertical support rod 1.2.24 abuts against the lower end surface of the horizontal horizontal rod 1.2.21 above it, and the lower end of the vertical support rod 1.2.24 abuts against the upper end surface of the horizontal horizontal rod 1.2.21 below it.

[0026] Four adjusting parts 1.5 are arranged at the bottom of the elevator cage 1 at the bottom, and the four adjusting parts 1.5 are respectively connected to the upper parts of four supporting feet 1.6 by threads, and the lower end surfaces of the supporting feet 1.6 are against the horizontal plane.

[0027] Specific installation steps:

[0028] 1. Insert the connecting square tube 1.2.23 into the lower end of the column and fix it with bolts and nuts, install the adjusting part 1.5 at the lower end of the connecting square tube 1.2.23, and thread the upper part of the supporting foot 1.6 with the adjusting part 1.5.

[0029] 2. Insert the end of the transverse horizontal rod 1.2.21 into the first slot 1.2.231 in the middle of the connecting square tube 1.2.23, and insert the end of the longitudinal horizontal rod 1.2.22 into the second slot 1.2.232 in the middle of the connecting square tube 1.2.23. Install and fix the horizontal frame 1.2.2 on the four connecting square tubes 1.2.23, and use the upper part of the support foot 1.6 to adjust the height of the adjusting part 1.5 through the thread to level the horizontal frame 1.2.2.

[0030] 3. Install the vertical support rod 1.2.24 between the two adjacent horizontal horizontal rods 1.2.21, and ensure that the upper end of the vertical support rod 1.2.24 abuts against the lower end surface of the horizontal horizontal rod 1.2.21 above it, and the lower end of the vertical support rod 1.2.24 abuts against the upper end surface of the horizontal horizontal rod 1.2.21 below it.

[0031] 4. Install the walking platform 1.1 with the pier holes 1.1.1 in the horizontal frame 1.2.2.

[0032] 5. Install stairs 1.3 between horizontal frames 1.2.2.

[0033] 6. Arrange guardrail 1.4 frame along the periphery of horizontal frame 1.2.2, and lay wire mesh on guardrail 1.4 frame.

[0034] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. An assembled ladder cage for bridge pier construction, characterized in that: It comprises a unit ladder cage (1) which is stacked and detachably arranged from bottom to top, and the ladder cage (1) comprises a support frame (1.2) and a set of stairs (1.3) fixed in the support frame (1.2); The support frame (1.2) comprises four vertical columns (1.2.1), and the four vertical columns (1.2.1) are plugged and fixed with connecting square tubes (1.2.23), wherein the lower end and the upper end of the vertical column located at the topmost unit ladder cage (1) are both plugged and fixed with connecting square tubes (1.2.23), and the lower ends of the remaining unit ladder cages (1) are provided with connecting square tubes (1.2.23), and the four connecting square tubes (1.2.23) are provided with horizontal frames (1.2.2); The horizontal frame (1.2.2) is formed by four horizontal bars connected end to end and fixed on a connecting square tube (1.2.23), the four horizontal bars include two transverse horizontal bars (1.2.21) and two longitudinal horizontal bars (1.2.22), the two transverse horizontal bars (1.2.21) and the two longitudinal horizontal bars (1.2.22) are both detachably connected to the connecting square tube (1.2.23), the walking platform (1.1) is located in the horizontal frame (1.2.2), a pier hole (1.1.1) is reserved in the middle of the walking platform (1.1), and the stairs (1.3) are fixed between the upper and lower adjacent horizontal frames (1.2.2) and are used to connect two adjacent walking platforms (1.1).

2. The assembled ladder cage for bridge pier construction according to claim 1 is characterized in that: The lower end of the connecting square tube (1.2.23) is provided with a connecting portion, and the upper end of the vertical pole is inserted into the connecting portion and fixed by bolts and nuts.

3. The assembled ladder cage for bridge pier construction according to claim 1, characterized in that: A first slot (1.2.231) and a second slot (1.2.232) are provided in the middle of the connecting square tube (1.2.23); one end of the transverse horizontal rod (1.2.21) is inserted into the first slot (1.2.231) and fixed by a fastener; and one end of the longitudinal horizontal rod (1.2.22) is inserted into the second slot (1.2.232) and fixed by a fastener.

4. The assembled ladder cage for bridge pier construction according to claim 1, characterized in that: A vertical support rod (1.2.24) is arranged between two adjacent transverse horizontal rods (1.2.21) above and below, the upper end of the vertical support rod (1.2.24) butts against the lower end surface of the transverse horizontal rod (1.2.21) above it, and the lower end of the vertical support rod (1.2.24) butts against the upper end surface of the transverse horizontal rod (1.2.21) below it.

5. The assembled ladder cage for bridge pier construction according to claim 1, characterized in that: A guardrail (1.4) is also provided on the horizontal frame (1.2.2). The guardrail (1.4) is arranged in a circle around the circumference of the horizontal frame (1.2.2). The guardrail (1.4) comprises a guardrail (1.4) frame welded from square steel and a steel wire mesh laid on the guardrail (1.4) frame.

6. The assembled ladder cage for bridge pier construction according to claim 1, characterized in that: The bottom of the ladder cage (1) at the bottom is provided with four adjustment parts (1.5), the four adjustment parts (1.5) are respectively connected to the upper parts of four supporting feet (1.6) by threads, and the lower end surfaces of the supporting feet (1.6) are against the horizontal plane.

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