RU2747631C1 - Connector for profile pipes (options) - Google Patents

Abstract

FIELD: construction; furniture manufacturing; mechanical engineering; electrical engineering.

SUBSTANCE: connector for profile pipes is used to fasten rectangular profile pipes in the manufacture of bulk modular and frame structures in construction, furniture manufacturing, mechanical engineering, electrical engineering, etc. The connector of profile pipes located at an angle to each other contains two plates, one of which is made rectangular, and the other is L-shaped. Both plates contain threaded bushings placed in holes coaxially made in the profile pipes and designed to fix the profile pipes by screwing fasteners into them. The plates also contain transverse grooves for the mutual connection of both plates at an angle by engaging them one after the other. In addition, the L-shaped plate has a hole designed to fix it to the profile pipe by means of a fastener attached to the expander nut placed in the profile pipe. Options for connecting profile pipes are also described.

EFFECT: increased strength and reliability of the assembled unit, obtaining a collapsible connection, as well as reduced labor costs when assembling bulk modular structures.

5 cl, 18 dwg

Description

The connector for shaped pipes is used to fasten rectangular shaped pipes in the manufacture of bulk modular and frame structures in construction, furniture production, mechanical engineering, electrical engineering, for example, in the production of greenhouses, furniture frames, etc.

From the prior art, the structure of a rigid frame joint assembly is known, made in the form of metal box-section profiles, containing two corrugated metal strips, the corrugations of which are made with flat bases, while the strips are attached on both sides of the gusset so that the flat bases are superimposed on opposite flat edges profiles near the corner joint and attached to them with self-tapping screws, and the corrugations of the linings run perpendicular to the bisector of the angle of the joint of the profiles (RF patent for utility model No. 179262 priority dated 17.01.2018).

The disadvantage of this useful model is the presence of two corrugated linings, which create additional thickness for the frame unit, overlap the useful space in the corner, forming a closed niche on both sides and a large number of self-tapping screws.

It is also known a device for an angular connector of shaped pipes containing a body consisting of two mutually connected mutually perpendicular hollow parts, each of which has a hole at one end for mounting shaped pipes, while the other ends form a section with a hole in which a protrusion perpendicular to the hollow parts is embedded body and having a chamfer at its ends for attaching a profile pipe to it (RF patent for utility model No. 165,335, priority 07/05/2016).

The disadvantage of this useful model is the presence of a difference in heights from all sides, between the profile pipe and the corner connector, a backlash in the connection.

The closest design to the proposed technical solution is a tubular profile connection unit containing embedded and connecting elements provided with holes for fastening elements. The unit is formed by load-bearing elements of frame structures, interconnected by gussets using a prefabricated embedded insert. The insert secures the gussets to the walls of the profiles to be connected using friction bolted joints without access to their nuts. The nuts are fixed in a prefabricated embedded insert and installed in it with the possibility of pressing against the inner walls of the profile, using washers and a friction pad installed in the insert. The insert is installed in each of the connected profiles. The insert is equipped with a wooden beam with through transverse holes and widened holes on opposite sides of the beam, in which nuts are coaxially fixed and washers are installed. Washers are closed on the bar with friction pads, in which holes for bolts are made coaxially with the holes in the bar (RF patent for invention No. 2423582, priority dated 03/25/2010).

The disadvantage of this design is the impossibility of creating a connection of tubular profiles in 3 planes.

The technical result of the proposed design of a connector for shaped pipes is to increase the strength and reliability of the assembled assembly, to obtain a collapsible connection, as well as to reduce labor costs when assembling bulk modular structures.

The applicant offers four versions of the connector for shaped pipes, which ensure the achievement of the claimed technical result.

The connector for shaped pipes according to the first embodiment contains fastening plates with holes. These plates are mounted on the profile pipes with fasteners. One of the plates is made in the form of a rectangle, and the other is L-shaped, and both plates additionally contain threaded bushings and transverse grooves. The holes for the threaded bushings and fasteners must be pre-drilled in the profile pipes, with each hole for the threaded bush being made opposite the corresponding hole for the fastener.

The connector for shaped pipes according to the second embodiment contains a fastening plate with holes. This plate is mounted on profile pipes with fasteners, made in a T-shape and additionally contains threaded bushings. The value of the angle in plan between the mutually intersecting elements of the plates can vary in the range of 0 ... 90 degrees. The holes for the threaded bushings and fasteners must be pre-drilled in the profile pipes, with each hole for the threaded bush being made opposite the corresponding hole for the fastener.

The connector for shaped pipes according to the third embodiment contains a fastening plate with holes. This plate is mounted on profile pipes with fasteners, is angular and additionally contains threaded bushings. The value of the angle in plan between the mutually intersecting elements of the plates can vary in the range of 0 ... 90 degrees. The holes for the threaded bushings and fasteners must be pre-drilled in the profile pipes, with each hole for the threaded bush being made opposite the corresponding hole for the fastener.

The connector for shaped pipes according to the fourth embodiment contains a fastening plate with holes. This plate is mounted on profile pipes with fasteners, is cruciform and additionally contains threaded bushings. The value of the angle in plan between the mutually intersecting elements of the plates can vary in the range of 0 ... 90 degrees. The holes for the threaded bushings and fasteners must be pre-drilled in the profile pipes, with each hole for the threaded bush being made opposite the corresponding hole for the fastener.

Threaded sleeves can be welded to the mounting plates.

The proposed connection methods for shaped pipes are illustrated by the drawings:

FIG. 1 shows a general view of the joint of shaped pipes according to the first embodiment

FIG. 2 shows a left view of the joint of shaped pipes according to the first embodiment.

FIG. 3 shows a rectangular connection plate.

FIG. 4 shows an L-shaped connecting plate.

FIG. 5 shows a diagram of drilling holes in a shaped pipe (rack) for connecting shaped pipes according to the first embodiment.

FIG. 6 shows a diagram of drilling holes in a shaped pipe (beam) for connecting shaped pipes according to the first embodiment.

FIG. 7 shows a section A-A of the joint of shaped pipes according to the first embodiment.

FIG. 8 shows a section B-B of the joint of shaped pipes according to the first embodiment.

FIG. 9 shows a general view of the method for connecting shaped pipes according to the second embodiment (T-shaped).

FIG. 10 shows a general view of the method for connecting shaped pipes according to the third embodiment (angular).

FIG. 11 shows a general view of the method for connecting shaped pipes according to the fourth embodiment (cruciform).

FIG. 12 shows a plate for connecting shaped pipes according to the second embodiment (T-shaped), general view.

FIG. 13 shows a plate for connecting shaped pipes according to the third embodiment (angular), general view.

FIG. 14 shows a plate for connecting shaped pipes according to the fourth embodiment (cruciform), general view.

FIG. 15 shows a diagram of drilling holes in a profile pipe, according to the fourth embodiment of the connection.

FIG. 16 shows a section BB, T-shaped connection of FIG. nine.

FIG. 17 shows a section L-G, T-shaped connection of FIG. nine.

The joint for shaped pipes contains the following elements:

1 - profile pipe (rack); 2 - rectangular connecting plate; 3 - threaded bushing; 4 - fastening element; 5 - L-shaped connecting plate; 6 - embedded threaded bushing; 7 - groove; 8 - shaped pipe; 9 - rectangular plate; 10 - L-shaped plate; 11 - T-shaped connecting plate; 12 - longitudinal profile pipe; 13 - corner connecting plate; 14 - cross-shaped connecting plate; 15 - T-shaped plate; 16 - corner plate; 17 - cruciform plate.

The connection unit made of shaped pipes is mounted and works as follows:

Racks are pre-cut from the profile pipe according to the selected height of the structure and beams according to the selected length.

The joint of shaped pipes according to the first embodiment (Fig. 1) is formed by joining to the shaped pipe (rack) 1 (Fig. 1, Fig. 5) through coaxial holes D1; D2 (Fig. 5) of a rectangular connecting plate 2 with a threaded bushing 3 (Fig. 2, Fig. 3) with a fastening element 4 (Fig. 2), connected through the coaxial holes D3; D4 with an L-shaped connecting plate 5, through hole D5 (Fig. 4) using a threaded bushing 6 and a fastening element 4 (Fig. 2, Fig. 8), while the groove 7 (Fig. 3) of a rectangular connecting plate 2 and groove 7 (Fig. 4) L-shaped connecting plate 3 engage with each other, profile pipes 8 are connected to threaded bushings 3 with fasteners 4 (Fig. 7).

The joint assembly according to the second embodiment (T-shaped) FIG. 9, formed by attaching to a profile pipe 12 installed longitudinally through coaxial holes D1; D2 (Fig. 15) of a T-shaped connecting plate 11 with threaded bushings 3 (Fig. 16) with fasteners 4, a profile pipe (beam) 8 is connected to the threaded bushings 3 with fasteners 4 in Fig. 17.

The joint assembly according to the third embodiment (angular) FIG. 10, formed by attaching the profile pipes 8 to the corner attachment plate 13 through the coaxial holes Dl; D2 (Fig. 6) with fasteners 4, to threaded bushings 3.

The joint assembly according to the fourth embodiment (cruciform) FIG. 11, formed by attaching to a profile pipe 12 installed longitudinally through coaxial holes D1; D2 (Fig. 15) of a cruciform connecting plate 14 with threaded bushings 3 (Fig. 16) with fasteners 4, beams 8 are connected to threaded bushings 3 with fasteners 4, similarly to Figs. 17.

To give strength and rigidity to the nodal joint, FIG. 1, the final tightening of the fasteners 4 is carried out until the gap A1 is eliminated and the inner face of the rack and the beam fits snugly against the end of the embedded threaded bushing 6, threaded bushing 3; fig. 7; eight.

For the connections of FIG. 9, figs. 10, figs. 11, the strength and rigidity of the connection is achieved in the same way: by tightening the fasteners 4 until the gap A1 is eliminated.

The rectangular connecting plate 2 shown in FIG. 3 contains a groove 7 and threaded bushings 3.

The L-shaped attachment plate 5 shown in FIG. 4 contains groove 7, hole D5 and threaded bushings 3.

The T-shaped connecting plate 11 shown in FIG. 9 contains threaded bushings 3.

The corner attachment plate 13 shown in FIG. 10 contains threaded bushings 3.

The cruciform attachment plate 14 shown in FIG. 11 contains threaded bushings.

The number of threaded bushings 3 and the plate thickness S1 are determined depending on the loads acting on the assembly and design considerations. The connection of threaded bushings to the plates can be carried out, for example, by welding

FIG. 16 shows the method of connecting the T-shaped connecting plate 11 to the beam 8 with the fastening element 4 and the recess of the gap A1.

FIG. 17 shows the method of connecting the T-shaped connecting plate 11 to the beam 8 with the fastening element 4 and the recess of the gap A1.

In the connecting plates of FIG. 12-14 the value of the angle B1 in the plan can vary within 0 ... 90 degrees.

The use of the inventive profile pipe connector (options) allows to increase the strength and reliability of the assembled unit, to obtain a collapsible connection, and also to reduce labor costs when assembling bulk modular structures.

Claims (5)

1. Connector of shaped pipes located at an angle to each other, containing two plates, one of which is rectangular, and the other - L-shaped, both plates contain threaded bushings placed in coaxially made holes in the profile pipes and designed to fix the profile pipes by screwing fasteners into them, and they also contain transverse grooves for interconnecting both plates at an angle by engaging them one after another, in addition, the L-shaped plate has a hole designed to attach it to the profile pipe by means of a fastener attached to cage nut placed in the profile pipe. 2. A connector of shaped pipes located at an angle to each other, containing a T-shaped plate, and the value of the angle in plan between the mutually intersecting plate elements is within 10 ÷ 90 degrees, the plate is equipped with threaded bushings placed in coaxially made holes in profile pipes to be connected and designed for fixing profile pipes by screwing fasteners into them. 3. Connector of shaped pipes located at an angle to each other, containing one plate made L-shaped, and the value of the angle in plan between the mutually intersecting plate elements is within 10 ÷ 90 degrees, the plate is equipped with threaded bushings placed in coaxially made holes in the connected profile pipes and intended for fixing the profile pipes by screwing fasteners into them. 4. Connector of shaped pipes, located at an angle to each other, containing one plate, made cruciform, and the value of the angle in plan between the mutually intersecting plate elements is within 10 ÷ 90 degrees, the plate is equipped with threaded bushings placed in coaxially made holes in the connected shaped pipes and designed for fixing shaped pipes by screwing fasteners into them. 5. Connector for shaped pipes according to any one of paragraphs. 1-4, characterized in that the threaded sleeves are welded to the fastening plates.

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