Length-adjustable connecting structure for parallel connection of few-support system

Abstract

The utility model relates to the technical field of engineering construction, in particular to a connecting structure with adjustable parallel connection length for a few-support system, which comprises a connecting standard pipe fitting and a connecting flange, and the connecting flange comprises a steel hoop used for being arranged on a steel pipe pile or a steel stand column. The two side ends of the steel hoop are each provided with a flange plate used for being connected with the end of a standard pipe fitting. The connecting sleeve is used for connecting two sections of standard pipe fittings to achieve splicing, and anchoring structures used for being connected with the standard pipe fittings to be matched are arranged at the two ends of the connecting sleeve. The connecting structure is convenient to mount and dismount, and welding operation is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a parallel length adjustable connection structure of a system with few brackets. Background Art

[0002] In order to meet the requirements of modern road traffic, cross-river and cross-channel bridges continue to appear. The less-supported structure is widely used in cast-in-place concrete construction of land, water and high-altitude bridges, and in temporary steel trestles and water work platforms across rivers. In order to ensure the overall stability of the less-supported system and steel trestles, flat joints, diagonal braces and other connection systems are usually set between steel pipe piles or steel columns. Common connecting rods include round steel pipes and channel steels. The round steel pipes are welded to steel pipe piles or steel columns in the form of "Harvard joints". The channel steels are welded to steel columns by setting node steel plates, connecting steel pipe piles or steel columns into an integral structure to ensure structural stability.

[0003] Although the welding process of connecting rods such as round steel pipes and channel steels can meet the stability and safety requirements of the less-bracket system, the rods need to be cut and extended for steel pipe piles or steel columns with different spacing and diameters, which results in serious material loss and a large welding workload, resulting in low construction efficiency and large investment in construction resources. At the same time, repeated welding and cutting of steel materials affect their own strength, and the construction quality is uncontrollable and the degree of standardization is low. Utility Model Content

[0004] The utility model aims to provide a length-adjustable parallel connection structure for a system with few brackets, which is easy to install and remove and helps to significantly reduce welding operations.

[0005] The technical solution of the utility model is: a length-adjustable connection structure for a system with few supports, including connecting standard pipe fittings and connecting flanges, wherein the connecting flanges include steel clamps for being arranged on steel pipe piles or steel columns, and both side ends of the steel clamps are provided with flanges for connecting to the ends of the connecting standard pipe fittings; and also include connecting sleeves for splicing two sections of connecting standard pipe fittings, and both ends of the connecting sleeves are provided with anchoring structures for matching the connecting standard pipe fittings.

[0006] Furthermore, flange connection holes are provided at both ends of the connecting standard pipe fittings, and bolt holes that match the flange connection holes and are connected via connecting bolts are provided on the flange plate of the steel clamp.

[0007] Furthermore, the connecting bolts are high-strength bolts; and the bolt holes include parallel-joint bolt holes and diagonal-bracing bolt holes.

[0008] Furthermore, the connecting standard pipe fittings are double-jointed channel steel standard rods or steel pipes, and include three specifications of lengths of 1m, 2m and 3m.

[0009] Furthermore, the anchoring structure comprises threaded holes arranged at intervals along the circumference direction of the end of the connecting sleeve, and the threaded holes are all threaded with anchor bolts for fastening and connecting standard pipe fittings.

[0010] Furthermore, the connecting sleeve is a rectangular tube, and the inner diameter of the connecting sleeve is larger than the connecting standard pipe fitting.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. By setting a flange structure at the connection node of the steel pipe pile or steel column, the flange structure is also set at the end of the bracket parallel connection, diagonal brace and other rods. The connecting rods and steel pipe piles or steel columns are matched with flange bolts to facilitate installation and removal, avoid material performance fatigue caused by welding and oxygen cutting, and greatly reduce the welding process and construction period; make full use of existing construction materials, install and disassemble them in an assembled manner, and reuse them many times, thereby improving material turnover utilization, reducing investment costs, and meeting the standardization requirements of the construction site.

[0013] 2. This connection structure helps to achieve adjustable length of bracket connection pipes and assembly installation, which can greatly improve the construction efficiency of less brackets, steel trestle systems, etc. while ensuring economy and reducing material loss.

[0014] 3. The splicing length of standard pipe fittings such as parallel joints and diagonal braces can be adjusted by tightening the anchor bolts to avoid steel cutting loss; the connection structure has clear force and small resource input requirements, which is conducive to further reducing the project cost, facilitating the free installation and adjustment of temporary bridge structures, improving work efficiency, and has significant social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cooperation between the standard connecting pipe fitting and the connecting sleeve of the utility model;

[0016] Figure 2 It is a cross-sectional view of the connection sleeve of the utility model matching with the standard connection pipe fitting;

[0017] Figure 3 It is a schematic diagram of three specifications of standard connecting pipe fittings of the utility model;

[0018] Figure 4 It is a schematic diagram of the connecting sleeve of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the connecting flange of the utility model;

[0020] Figure 6 It is a schematic diagram of the application of the utility model;

[0021] In the figure: 10 - connecting standard pipe fitting 11 - flange connecting hole 20 - connecting flange 21 - steel clamp 22 - flange plate 23 - bolt hole 231 - parallel bolt hole 232 - diagonal support bolt hole 30 - connecting sleeve 31 - threaded hole 32 - anchor bolt. DETAILED DESCRIPTION

[0022] In order to make the above features and advantages of the present invention more understandable, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0023] refer to Figures 1 to 6

[0024] A length-adjustable connection structure for a system with few supports includes a connecting standard pipe 10 and a connecting flange 20. The connecting flange includes a steel clamp 21 for being arranged on a steel pipe pile or a steel column. Both ends of the steel clamp are provided with flange plates 22 for connecting to the ends of the connecting standard pipe. The invention also includes a connecting sleeve 30 for splicing two sections of connecting standard pipes. Both ends of the connecting sleeve are provided with anchoring structures for matching the connecting standard pipes. The splicing of the two sections of connecting standard pipes is achieved through the connecting sleeve.

[0025] In this embodiment, in order to connect the connecting flange with the connecting standard pipe fitting, flange connecting holes 11 are provided at both ends of the connecting standard pipe fitting, and bolt holes 23 that match the flange connecting holes and are connected via connecting bolts are provided on the flange plate of the steel clamp.

[0026] In this embodiment, the connecting bolts are high-strength bolts, and the connecting standard pipe fittings used as parallel connections and diagonal braces are connected to the connecting flanges to form an integral structure, and are connected to the steel pipe piles or steel columns to form a lattice column form, thereby ensuring the overall stability of the system with few supports. The bolt holes include parallel connection bolt holes 231 and diagonal brace bolt holes 232, so as to be connected to the connecting standard pipe fittings used as parallel connections and diagonal braces.

[0027] In this embodiment, the connecting standard pipe fittings are the main connecting system rods such as flat links and diagonal braces of the less-support system, which are determined according to the design plan of the support or trestle, such as double-piece channel steel standard rods or steel pipes, and include three standard length specifications of 1m, 2m and 3m, which can be cut according to the on-site material conditions.

[0028] In this embodiment, the inner diameter of the connecting sleeve is larger than that of the connecting standard pipe fitting, wherein the anchoring structure includes threaded holes 31 arranged at intervals along the circumference direction of the end of the connecting sleeve, and the threaded holes are all threaded with anchor bolts 32 for fastening the connecting standard pipe fitting. The ends of the two sections of the connecting standard pipe fitting are inserted into the connecting sleeve, and the anchor bolts are tightened after sliding adjustment to the required length. The connecting sleeve and the connecting standard pipe fitting are formed into an integral component by relying on the friction between the bolt and the pipe wall, and the length can be freely adjusted to meet the needs of the site.

[0029] In this embodiment, the connecting sleeve may be a rectangular steel sleeve.

[0030] by Figure 6 For example, the connection flange 20 is installed on the steel column, one end of the connection standard pipe fitting 10 as a flat connection is connected to the flat connection bolt hole 231 on the connection flange through a high-strength bolt, and the other end of the connection standard pipe fitting 10 as a flat connection is connected to another connection standard pipe fitting 10 as a flat connection through a connection sleeve 30, and the other end of the other connection standard pipe fitting 10 as a flat connection is connected to the connection flange 20 installed on the adjacent steel column. One end of the connection standard pipe fitting 10 as a diagonal brace is connected to the diagonal brace bolt hole 232 on the connection flange through a high-strength bolt, and the other end of the connection standard pipe fitting 10 as a diagonal brace is connected to one end of another connection standard pipe fitting 10 as a diagonal brace through a connection sleeve 30, and the other end of the other connection standard pipe fitting 10 as a diagonal brace is connected to the connection flange 20 installed on the adjacent steel column.

[0031] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection to each other can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an one-piece molding process).

[0032] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0033] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated forming process.

[0034] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A length-adjustable connection structure for a system with few brackets, comprising a connecting standard pipe fitting and a connecting flange, characterized in that: The connecting flange includes a steel clamp for arrangement on a steel pipe pile or a steel column, and both ends of the steel clamp are provided with flange plates for connecting to the ends of standard pipe fittings; it also includes a connecting sleeve for splicing two sections of standard pipe fittings, and both ends of the connecting sleeve are provided with anchoring structures for matching with the standard pipe fittings.

2. The length-adjustable connection structure of a bracket-less system according to claim 1, characterized in that: Both ends of the connecting standard pipe fitting are provided with flange connection holes, and the flange plate of the steel clamp is provided with bolt holes that match the flange connection holes and are connected via connection bolts.

3. The length-adjustable connection structure of a bracket-less system according to claim 2, characterized in that: The connecting bolts are high-strength bolts; the bolt holes include parallel bolt holes and diagonal brace bolt holes.

4. A length-adjustable connection structure for a system with few supports according to claim 1, 2 or 3, characterized in that: The connecting standard pipe fittings are double-jointed channel steel standard rods or steel pipes, and include three specifications of lengths of 1m, 2m and 3m.

5. A length-adjustable connection structure for a system with few supports according to claim 1, 2 or 3, characterized in that: The anchoring structure comprises threaded holes arranged at intervals along the circumference direction of the end of the connecting sleeve, and the threaded holes are all threaded with anchor bolts for fastening and connecting standard pipe fittings.

6. The length-adjustable connection structure of a system with few brackets according to claim 5, characterized in that: The connecting sleeve is a rectangular tube, and the inner diameter of the connecting sleeve is larger than the connecting standard pipe fitting.

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