Rotary-type turning assembly and connecting structure thereof

Abstract

The invention discloses a rotary-type turning assembly and a connecting structure thereof. The rotary-type turning assembly and the connecting structure thereof comprise a rotating shaft, a first plug-in piece, a second plug-in piece, a first hanging piece, a second hanging piece, a first connecting screw rod and a second connecting screw rod. A first end and a second end of the first plug-in piece are respectively provided with an arc-shaped groove of the first plug-in piece and a plug-in portion which is connected with a first tube in plug-in mode, and the arc-shaped groove of the first plug-in piece is matched with the rotating shaft. An angled first end and an angled second end of the second plug-in piece are respectively provided with an arc-shaped groove of the second plug-in piece and a plug-in portion which is connected with a second tube in plug-in mode, and the arc-shaped groove of the second plug-in piece is matched with the rotating shaft. The first connecting screw rod with plasticity penetrates through a through hole of one hanging piece, a through hole of the first plug-in piece, a through hole of the rotating shaft and a through hole of the second plug-in piece in sequence and is matched with a lock nut. The second connecting screw rod penetrates through a through hole of the other hanging piece and a through hole of the second plug-in piece in sequence and is matched with another lock nut. The rotary-type turning assembly is matched with the circumferential surface of the rotating shaft and the arc-shaped grooves of the plug-in pieces and is fastened through utilization of adjusting bolts so that the tubes can be freely adjusted within a set angle.

Description

technical field [0001] The invention relates to a turning assembly for realizing the turning connection of two pipe parts, and the turning assembly is particularly suitable for realizing the turning connection of stair handrails. Background technique [0002] At present, the turning connection of two pipe fittings is usually realized through an elbow adapted to the turning angle. For example, stair handrails usually have a turning design. The turning forms of stair handrails include upper and lower turning connections and parallel turning connections. The traditional ones are, for example, When the round tube-shaped armrest surface pipe (equivalent to the above-mentioned pipe fittings) is used to realize the turning connection with an elbow, one is realized by welding, and the other is that the elbow is provided with a connecting shaft that can be inserted into the armrest surface pipe. Then, the fixed connection between the connecting shaft and the armrest surface pipe is r...

AI Technical Summary

Problems solved by technology

[0003] The bending angle of existing elbows is mostly fixed and non-adjustable. Therefore, an elbow of one specification (bending angle) is only suitable for a turning connection of one angle, which is not universal. Therefore, if an unconventional angle is used For bending, it is necessary to customize the elbow according to the requirements in advance, which not only increases the workload, but also increases the construction cost

In addition, the Chinese Utility Model Patent Application No. 201020027157.0 discloses an angle-adjustable swivel joint, which has an adapter sphere including two hemispheres and two socket pipes, the socket pipe and the hemispheres are integrated In this type of structure, the transfer ball rotates relative to the pin shaft that runs through it to realize the adjustment of the turning angle. The turning joint with this structure has a large limitation in the adjustment angle and is prone to slipping after the adjustment is locked, as well as the problem of unsightly appearance.

Images