Novel steel structure handrail reducing elbow

Abstract

The invention discloses a novel steel structure handrail reducing elbow. The novel steel structure handrail reducing elbow comprises a body and a connector. The center lines of the two ends of the body are perpendicular. The connectors are of tubular structures and are coaxially fixed to the two ends of the body, the outer diameter of the connectors is smaller than that of the body, and the connectors are used for insertion of stand columns and transverse rods of a handrail. According to the steel structure handrail elbow, butt joint is easy, connection is firm and reliable, and the overall stability and safety of a handrail can be effectively improved.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, and in particular to a novel steel structure railing reducing elbow. Background Art

[0002] Railing is a safety facility on bridges and buildings. Railing plays a role of separation and guidance in use, makes divided zone boundary clearly clear, the railing designed has very much a decorative significance.

[0003] The existing steel structure railing elbows have the problems of loose connection, difficult docking, easy corrosion and complicated manufacturing process. Summary of the invention

[0004] The invention provides a novel steel structure railing reducing elbow, which can achieve firm connection.

[0005] The embodiment of the present invention provides a novel steel structure railing reducer elbow, comprising a body and a joint. The center lines of the two ends of the body are vertically arranged. The joint is a tubular structure, the joint is coaxially fixed at the two ends of the body, the outer diameter of the joint is smaller than the outer diameter of the body, and the joint is used for inserting the upright column and the crossbar of the railing.

[0006] In some of the embodiments, an outer wall of the joint and an outer wall of the body are in an arc-shaped transition.

[0007] In some of the embodiments, the joint has a plurality of connecting segments arranged along the axial direction thereof, and the outer diameter of each connecting segment decreases gradually along the axial direction of the joint.

[0008] The embodiment of the present invention provides a railing processing method using a new steel structure railing reducer elbow, comprising the following steps: performing quenching and tempering treatment on the new steel structure railing reducer elbow, column and crossbar, the quenching and tempering treatment includes heating, rapid cooling and tempering treatment, the heating temperature is 850-900°C, rapid cooling uses oil or water, and the tempering temperature is 500-700°C. The new steel structure railing reducer elbow, column and crossbar are connected to form a complete railing. The railing is adjusted and corrected. The railing is subjected to anti-corrosion treatment.

[0009] In some of the embodiments, when connecting the reducer elbow, column and crossbar of the new steel structure railing, the welding rod is low-hydrogen J607RH, the preheating temperature before welding is 200°C, and the interlayer temperature should be controlled below 316°C.

[0010] In some of the embodiments, when the new steel structure railing reducer elbow, column and crossbar are connected, the new steel structure railing reducer elbow is spot-welded to the column and crossbar and then fully welded.

[0011] In some of the embodiments, when adjusting and calibrating the railing, the horizontality and verticality of the railing are checked, and the parts that do not meet the requirements are adjusted.

[0012] In some of the embodiments, when adjusting and correcting the railing, check whether the connection parts between the reducer elbow of the new steel structure railing and the column and the crossbar are tightly fitted. If there are gaps or unevenness, adjust and deal with them.

[0013] In some of the embodiments, when the railings are subjected to anti-corrosion treatment, the coating is carried out under conditions of a temperature above 5° C. and a relative humidity below 85%.

[0014] In some of the embodiments, when the railings are subjected to anti-corrosion treatment, 40 microns of epoxy zinc-rich primer, 40 microns of epoxy micaceous iron intermediate paint, and 40 microns of polyurethane topcoat are used.

[0015] According to an embodiment of the present invention, a new type of steel structure railing reducer elbow is provided, comprising a body and a joint. The center lines of the two ends of the body are vertically arranged. The joint is a tubular structure, which is coaxially fixed at the two ends of the body, and the outer diameter of the joint is smaller than the outer diameter of the body, and the joint is used for inserting the upright posts and cross bars of the railing. The steel structure railing elbow of the present invention is easy to connect, and the connection is firm and reliable, which can effectively improve the overall stability and safety of the railing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a front view of a new type of steel structure railing reducer elbow in an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of a new type of steel structure railing reducer elbow on the railing in an embodiment of the present invention;

[0019] Figure 3 It is a side view of the end of the reducer elbow of the new steel structure railing in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] See also Figure 1-3, an embodiment of the present invention provides a new type of steel structure railing reducer elbow, including a body and a joint.

[0022] The main body is an arc-shaped tubular structure, and the center lines of both ends of the main body are set vertically, that is, at an angle of 90 degrees. The main body is made of 35CrMo alloy steel.

[0023] The joint is a straight tubular structure. The joint is made of 35CrMo alloy steel. The joint is coaxially welded and fixed at both ends of the body. The welding rod is low-hydrogen J607RH, the preheating temperature before welding is 200℃, and the interlayer temperature should be controlled below 316℃. There is an arc transition between the outer wall of the joint and the outer wall of the body. The outer diameter of the joint is equal to the outer diameter of the body, and the outer diameter of the joint is smaller than the outer diameter of the body. The joint is used for the insertion of the columns and crossbars of the railing. The above setting lengthens the body in the form of a reducer, and the crossbars and vertical bars are inserted into the reducer elbow for welding to form a complete railing structure. The joint has a plurality of connecting sections arranged along its axial direction, and the outer diameter of each connecting section gradually decreases along the axial direction of the joint to realize the insertion of columns and crossbars of different specifications. There is an arc transition between each connecting section.

[0024] An embodiment of the present invention provides a method for processing a railing using a novel steel structure railing reducer elbow, comprising the following steps:

[0025] (1) The reducer elbows, columns and crossbars of the new steel structure railings are subjected to quenching and tempering treatment, which includes heating, rapid cooling and tempering. The heating temperature is 850-900℃, rapid cooling uses oil or water, and the tempering temperature is 500-700℃.

[0026] Among them, the above-mentioned tempering treatment is used to improve mechanical properties and heat resistance.

[0027] (2) Connect the reducer elbow, column and cross bar of the new steel structure railing to form a complete railing.

[0028] Among them, before connecting the new steel structure railing reducer elbow, column and cross bar, the 35CrMo steel is forged into the initial shape of the elbow, and the reducer elbow is obtained after heat treatment and machining.

[0029] When connecting the reducer elbows, columns and cross bars of the new steel structure railings, low-hydrogen J607RH welding rods should be used, the preheating temperature before welding should be 200℃, and the interlayer temperature should be controlled below 316℃.

[0030] When connecting the new steel structure railing reducer elbow, column and crossbar, the new steel structure railing reducer elbow is spot welded to the column and crossbar, and then full welded using welding equipment. During the welding process, attention should be paid to the welding quality to ensure that the weld is uniform and firm, without defects such as pores and slag inclusions.

[0031] (3) Adjust and calibrate the railings.

[0032] When adjusting and correcting the railings, use tools such as spirit levels and squares to check the horizontality and verticality of the railings, and adjust the parts that do not meet the requirements.

[0033] When adjusting and correcting the railings, check whether the connection parts between the reducer elbows of the new steel structure railings and the columns and crossbars are tightly fitted. If there are gaps or unevenness, make adjustments and handle them.

[0034] (4) Carry out anti-corrosion treatment on the railings.

[0035] Among them, before the railings are subjected to anti-corrosion treatment, the oil, dust and other impurities on the surface of the reducer elbows, columns and cross bars of the new steel structure railings are cleaned.

[0036] When anti-corrosion treatment is applied to railings, the coating should be carried out at a temperature above 5°C and a relative humidity below 85%.

[0037] When the railing is treated with anti-corrosion, the epoxy zinc-rich primer is 40 microns, the epoxy micaceous iron intermediate paint is 40 microns, and the polyurethane topcoat is 40 microns. After each layer of paint is applied, there should be enough drying time to avoid mutual influence between the coatings.

[0038] The steel structure railing elbow of the present invention is easy to connect, and the connection is firm and reliable, which can effectively improve the overall stability and safety of the railing. The steel structure railing elbow of the present invention adopts high-strength alloy steel material and effective anti-corrosion treatment, which improves the strength and corrosion resistance of the railing elbow and prolongs its service life.

[0039] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of steel structure railing reducer elbow, characterized in that: include: The body has center lines at both ends arranged vertically; The joint is a tubular structure, which is coaxially fixed at both ends of the body, the outer diameter of which is smaller than the outer diameter of the body, and the joint is used for inserting the upright posts and crossbars of the railing.

2. The novel steel structure railing reducer elbow as claimed in claim 1 is characterized in that: An arc-shaped transition exists between the outer wall of the joint and the outer wall of the body.

3. The novel steel structure railing reducer elbow as claimed in claim 1 is characterized in that: The joint has a plurality of connecting sections arranged along its axial direction, and the outer diameter of each connecting section decreases gradually along the axial direction of the joint.

4. A method for processing a railing using the new steel structure railing reducer elbow according to any one of claims 1 to 3, characterized in that: The following steps are involved: The reducer elbows, columns and crossbars of the new steel structure railings are quenched and tempered. The quenching and tempering treatment includes heating, rapid cooling and tempering. The heating temperature is 850-900℃, the rapid cooling uses oil or water, and the tempering temperature is 500-700℃; Connect the reducer elbow, column and crossbar of the new steel structure railing to form a complete railing; Adjust and calibrate the railings; Provide anti-corrosion treatment to the railings.

5. The railing processing method according to claim 4, characterized in that: When connecting the reducer elbows, columns and cross bars of the new steel structure railings, low-hydrogen J607RH welding rods should be used, the preheating temperature before welding should be 200℃, and the interlayer temperature should be controlled below 316℃.

6. The railing processing method according to claim 4, characterized in that: When connecting the new steel structure railing reducer elbow, column and cross bar, the new steel structure railing reducer elbow is spot welded to the column and cross bar, and then full welded.

7. The railing processing method according to claim 4, characterized in that: When adjusting and correcting the railings, check the horizontality and verticality of the railings and adjust any parts that do not meet the requirements.

8. The railing processing method according to claim 4, characterized in that: When adjusting and correcting the railings, check whether the connection parts between the reducer elbows of the new steel structure railings and the columns and crossbars are tightly fitted. If there are gaps or unevenness, make adjustments and handle them.

9. The railing processing method according to claim 4, characterized in that: When anti-corrosion treatment is applied to railings, the coating should be carried out at a temperature above 5°C and a relative humidity below 85%.

10. The railing processing method according to claim 4, characterized in that: When the railings are treated for corrosion, use 40 microns of epoxy zinc-rich primer, 40 microns of epoxy micaceous iron intermediate paint, and 40 microns of polyurethane topcoat.

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