Stable connecting device for pier column and safety ladder cage

Abstract

The utility model discloses a stable connecting device for a pier column and a safety ladder cage. The stable connecting device is structurally and mainly composed of an embedded screw rod, a connecting base, an adjusting rod, a connecting pressing plate and a ladder cage hoop. The safe ladder cage and pier column stable connecting device is mainly used in the aerial operation construction process of pier column construction, straining beam construction, capping beam construction and the like of railways, highways and the like. Compared with other existing products, the advantages of being convenient to install, high in universality, high in assembly degree, beneficial to replacement of damaged components, capable of being repeatedly used, high in disassembly and assembly efficiency and the like are mainly reflected. Therefore, the utility model has higher economic benefit and social benefit when being applied in the construction process.

Description

Technical Field

[0001] The utility model relates to a stable connection device, specifically a device composed of a plurality of steel structure welded parts, which can be widely used in the stable connection of a safety ladder cage and a pier column during aerial construction such as pier column construction, tie beam construction, and cap beam construction of railways and highways after a simple assembly process. Background Art

[0002] At present, it is particularly important to strengthen the safety management of high-altitude construction operations and explore effective safety protection measures from the aspects of economy, green environmental protection, sustainability, etc.

[0003] Compared with the stability of the ladder devices used in related construction work environments, the main disadvantages are simple structure, poor safety, complex installation, and poor operability. Utility Model Content

[0004] The utility model relates to a device for firmly connecting pier columns and safety ladder cages, which has lower production cost, more optimized construction technology, lower construction operation difficulty, higher installation efficiency, better product quality, and more obvious economic and social benefits.

[0005] The utility model is realized by constructing a stable connection device between a pier column and a safety ladder cage, characterized in that: the stable connection device comprises a pre-buried screw rod (N1), a connecting seat (N2), an adjusting rod (N3), a connecting pressure plate (N4), and a ladder cage hoop (N5); the pre-buried screw rod (N1) is connected to the first connecting seat (N2), the first connecting seat (N2) is connected to the adjusting rod (N3), the adjusting rod (N3) is connected to the ladder cage hoop (N5), and the connecting pressure plate (N4) is connected to the adjusting rod (N3).

[0006] According to the utility model, the stable connection device between the pier column and the safety ladder cage is characterized in that the embedded screw rod (N1) is assembled from the embedded screw rod (N1) and the connecting sleeve (2). The main materials used are: the screw rod material is φ22 threaded steel bar, and the connecting sleeve is a φ22 steel bar casing. The process is carried out in accordance with the current "Code for Construction and Acceptance of Steel Structure Engineering" and other standards and specifications to complete the stable connection device - embedded screw rod (N1).

[0007] According to the stable connection device of the utility model, the feature is that the structure of the connection seat (N2) is composed of a seat plate (3) and a first connection plate (4), which are assembled. The main materials used are: the connection seat material is δ = 10mm steel plate, and the connection plate material is δ = 8mm steel plate. The connection seat is processed and manufactured in accordance with the current "Steel Structure Engineering Construction and Acceptance Code" and other standards and specifications to complete the stable connection device - the connection seat.

[0008] According to the stable connection device described in the utility model, it is characterized in that: the structural composition of the adjustment rod (N3) comprises a first ear plate (5), a second connection seat (6), a sleeve (7), a connection nut (8), and a screw rod (9), the first ear plate (5), the second connection seat (6), the sleeve (7), and the connection nut (8) are all formed by welding, and the screw rod (9) and the connection nut (8) are connected by a threaded mouth. The main materials used are: the first ear plate material is δ = 12mm steel plate, the second connection seat material is δ = 10mm steel plate, the sleeve material is φ48x2.75 welded pipe, the connection nut material is an ordinary φ27 nut, and the screw rod material is φ27 round steel, which are assembled and formed. The stable connection device - adjustment rod is processed and manufactured in accordance with the current "Steel Structure Engineering Construction and Acceptance Code" and other standards and specifications to complete the stable connection device - adjustment rod.

[0009] According to the stable connection device of the utility model, the feature is that the connecting pressure plate (N4) is composed of a perforated arc plate (10), two pieces of which are bolted together. The main material is δ=8mm steel plate, and it is processed and manufactured in accordance with the current "Steel Structure Engineering Construction and Acceptance Code" and other standards and specifications to complete the stable connection device - connecting pressure plate.

[0010] According to the stable connection device of the utility model, it is characterized in that the structure of the ladder cage hoop (N5) includes a second ear plate (11), a second connecting plate (12), and a cover plate (13) assembled together. The main materials used are: the ear plate material is δ = 8mm steel plate, the connecting plate material is δ = 8mm steel plate, and the cover plate material is δ = 8mm steel plate. The stable connection device - ladder cage hoop is manufactured in accordance with the current "Code for Construction and Acceptance of Steel Structure Engineering" and other standards and specifications.

[0011] The improved utility model has the following advantages:

[0012] Advantage 1: Easy installation and strong operability. The stable connection device of this utility model mainly consists of a pre-buried screw (N1), a first connection seat (N2), an adjustment rod (N3), a connection pressure plate (N4), and a ladder cage hoop (N5), totaling five parts. It has a relatively small number of components, is easy to install, and the number of components can be flexibly arranged according to different construction environments and the required dimensions for different construction applications, thus providing strong operability.

[0013] Advantage 2: High degree of assembly. This new, stable connection device is primarily composed of five welded components. Each steel structural component is assembled from corresponding raw materials after cutting, riveting, and welding. Each component is connected and fixed using bolts or pins according to different requirements. This significantly improves assembly efficiency during installation, disassembly, and temporary transport.

[0014] Advantage 3: Better safety performance. Compared with the traditional welding, clamping and other stable connection devices commonly used in the industry, it has better stability and safety, and has significant advantages in safety performance.

[0015] Advantage 4: High economic and social value. This new type of stable connection device consumes 70kg of steel per set (number of sets), with a comprehensive cost price of approximately RMB 385 per set. Similar products of the same type are often priced at around RMB 500-600 per set, offering a significant price advantage.

[0016] In terms of installation costs, the utility model allows for flexible manual operations, reducing the cost of machinery and equipment associated with construction projects. Furthermore, due to its advantages of easy installation and use, good overall stability, high degree of assembly, strong operability, high turnover rate, and flexible application in aerial construction environments such as high piers, tie beams, and cap beams, it boasts low costs and high economic and social value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1-Figure 2 This is a schematic diagram of the assembly structure of the utility model;

[0018] Figure 3 This is a structural diagram of the stable connection device - embedded screw (N1);

[0019] Figure 4 This is a structural diagram of the first connecting seat (N2), a stable connecting device;

[0020] Figure 5 This is a schematic diagram of the structure of the stable connection device - the adjustment rod (N3);

[0021] Figure 6 This is a structural diagram of the stable connection device - the connection pressure plate (N4);

[0022] Figure 7 This is a structural diagram of the stable connection device - ladder cage hoop (N5). DETAILED DESCRIPTION

[0023] The following will be combined with the Figure 1-Figure 7 This utility model is described in detail, and the technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the embodiments described are only some of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0024] The present invention provides a stable connection device through improvement. Figure 1-Figure 7 As shown, it can be implemented as follows.

[0025] This utility model features a standard connection structure consisting of five welded steel components: four pre-embedded screws N1, two first connection bases N2, three adjustment rods N3, one connecting pressure plate N4, and two ladder cage hoops N5. The components are primarily connected using conventional bolts, with some connections using pins. Before installing the secure connection device, the pre-embedded screws should be buried in the concrete. This secure connection device is easy to install and use, offers excellent overall stability, a high degree of assembly, and strong operability. It can be flexibly used to securely connect to a safety ladder cage during aerial operations, such as high piers, tie beams, and cap beams.

[0026] When pre-embedded screw rod N1, the components include: threaded steel bar 1 and connecting sleeve 2. The main materials are: φ22 threaded steel bar and φ22 steel bar sleeve. The pre-embedded screw rod N1 is processed and manufactured in accordance with the current "Code for Construction and Acceptance of Steel Structure Engineering" and other standards and specifications.

[0027] When installing the connection seat N2, the components include: the connection seat N2's structural components include the seat plate 3 and the first connection plate 4, which are assembled. The main materials used are δ = 10mm steel plate and δ = 8mm steel plate. The connection seat N2 is processed and manufactured in accordance with the current "Code for Construction and Acceptance of Steel Structure Engineering" and other standards and regulations.

[0028] When installing the adjusting rod N3, the components include: the first ear plate 5, the second connecting seat 6, the sleeve 7, the connecting nut 8, and the screw rod 9, which are assembled. The main materials are δ=12mm steel plate δ=10mm steel plate, φ48x2.75 welded pipe, ordinary φ27 nut, φ27 round steel, and are processed and manufactured in accordance with the current "Code for Construction and Acceptance of Steel Structure Engineering" and other standards and specifications to complete the adjusting rod N3.

[0029] When the facility is connected to the pressure plate N4, the components include: the first ear plate 5, the main material of which is δ=8mm steel plate, and is processed and manufactured in accordance with the current "Steel Structure Engineering Construction and Acceptance Code" and other standards and specifications to complete the connection pressure plate N4.

[0030] When installing the ladder cage hoop N5, the components include: second ear plate 11, second connecting plate 12, and cover plate 13. The main material is δ = 8mm steel plate, and it is processed and manufactured in accordance with the current "Code for Construction and Acceptance of Steel Structure Engineering" and other standards and regulations to complete the ladder cage hoop N5.

[0031] During the processing of this utility model, the appearance, size and other qualities of each component and assembly should be strictly controlled, mainly controlling: the structural dimension error ≤ 1mm, the bolt hole spacing error ≤ 0.5mm, and the structure should meet the requirements of the current "Steel Structure Engineering Construction and Acceptance Code" and other relevant specifications and standards.

[0032] A method for stably connecting and installing a pier column and a safety ladder cage, characterized by: installation requirements: a stably connecting device between the pier column and the safety ladder cage is provided at a position of 6 m and a top when the ladder cage is assembled at a height of less than 18 m; a stably connecting device is provided at positions of 6 m and 18 m when the ladder cage is assembled at a height of more than 18 m, and a stably connecting device is provided every 6 m above 18 m;

[0033] Installation steps: 1. The embedded part of the stable connection device - the embedded screw, should be embedded in the corresponding position of the pier column on site with φ22x330mm threaded steel and the corresponding steel bar connecting sleeve as required. Before embedding, the sleeve should be filled with butter and sealed with a 3mm rubber pad; 2. After the concrete solidifies, tear off the rubber pad seal and connect the connecting seat to the connecting sleeve with the corresponding bolts; 3. After the safety ladder cage overlaps to the corresponding position, fix the ladder cage hoop to the corresponding position of the safety ladder cage with bolts; 4. Adjust the screw of the adjusting rod to the appropriate position, connect it between the connecting seat and the ladder cage hoop, and fix it with a steel pin; 5. Connect the diagonal brace adjusting rod to the connecting seat and the adjusting rod with a connecting pressure plate.

[0034] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for firmly connecting a pier column and a safety ladder cage, characterized in that: The connecting device comprises a pre-buried screw rod (N1), a connecting seat (N2), an adjusting rod (N3), a connecting pressure plate (N4), and a ladder cage hoop (N5); the pre-buried screw rod (N1) is connected to the first connecting seat (N2), the first connecting seat (N2) is connected to the adjusting rod (N3), the connecting pressure plate (N4) is connected to the adjusting rod (N3), and the adjusting rod (N3) is connected to the ladder cage hoop (N5); The structure of the embedded screw rod (N1) comprises a threaded steel bar (1) and a connecting sleeve (2), and the components are formed by welding; The connecting seat (N2) is structurally composed of a seat plate (3) and a first connecting plate (4), and the components are formed by welding.

2. The device for firmly connecting a pier column to a safety cage according to claim 1, characterized in that: The structure of the adjusting rod (N3) comprises a first ear plate (5), a second connecting seat (6), a sleeve (7), a connecting nut (8), and a screw rod (9). The first ear plate (5), the second connecting seat (6), the sleeve (7), and the connecting nut (8) are formed by welding, and the screw rod (9) and the connecting nut (8) are connected by a threaded connection.

3. The device for firmly connecting a pier column to a safety cage according to claim 1, characterized in that: The connecting pressure plate (N4) is composed of an arc plate (10) with holes, two of which are butt-jointed and bolted.

4. The device for firmly connecting a pier column to a safety cage according to claim 1, characterized in that: The structure of the ladder cage hoop (N5) comprises a second ear plate (11), a second connecting plate (12), and a wrapping plate (13), and the components are formed by welding.

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