CN208123716U

CN208123716U - A kind of spiral winded type sheet metal elbow

Info

Publication number: CN208123716U
Application number: CN201820028758.XU
Authority: CN
Inventors: 王潼宇; 张欧; 张远东
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-08
Filing date: 2018-01-08
Publication date: 2018-11-20
Anticipated expiration: 2028-01-08

Abstract

The utility model relates to a kind of spiral winded type sheet metal elbow, the elbow is connected by a strip spiral winding and is formed.The strip with a thickness of 0.4-2.0mm sheet metal.Advantage is：Using a strip spiral winding connection structure, can continuous automatic production, raise labour productivity.It can be improved 40 times of efficiency with hand-made ratio, greatly reduce cost of manufacture.The available guarantee of product quality simultaneously.Elbow uses the structure of spiral winding, rigidity enhancing, and vibrating noise reduces when use, and air tight, it is arc-shaped that this kind of structure can be such that the radian of elbow is more nearly, therefore reduces resistance, reduce Oscillation Amplitude, thereby reduce noise, saved the energy.

Description

A kind of spiral winded type sheet metal elbow

Technical field

The utility model belongs to building ventilation field of air conditioning, more particularly to a kind of for the round gold such as air-conditioning, dedusting, smoke evacuation Belong to the spiral winded type sheet metal elbow of ventilation shaft.

Background technique

Mainly circular pipe is made with sheet metal in ventilation, air-conditioning, dedusting, smoke evacuation, the light material conveying of building interior, also referred to as Air hose circulates for two places gas.Most popular air hose is closed with galvanized sheet, stainless steel plate, aluminium in construction market at present Golden plate, color steel plate make, and are connected at pipeline turning with the elbow of same material.Common elbow is that more piece is curved in present construction market Head is commonly called as dried shrimp waist, sees Fig. 1, Fig. 2.This elbow is mainly with pure manual or by hand plus Simple mechanical production, there are low efficiency, It is of poor quality, the inadequate problem of rigidity, building interior using when it is big in the presence of vibration, noise is big, gas leakage, energy loss is big asks Topic, and increase construction engineering cost.

Summary of the invention

In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a kind of spiral winded type sheet metal is curved Head is connected for air hose turning, improves rigidity, and vibration is reduced when use, avoids gas leakage.

To achieve the above object, the utility model is achieved through the following technical solutions：

A kind of spiral winded type sheet metal elbow, the elbow are connected by a strip spiral winding and are formed.

The strip with a thickness of 0.4-2.0mm sheet metal.

Strip the widest part L1 is not more than 250mm, and most narrow place L2 is 30~70mm.

The strip both sides of the edge are wavy curve.

Compared with prior art, the utility model has the beneficial effects that：

Spiral winded type sheet metal elbow use a strip spiral winding connection structure, can continuous automatic production, It raises labour productivity.It can be improved 40 times of efficiency with hand-made ratio, greatly reduce cost of manufacture.Product quality can be with simultaneously It is guaranteed.Elbow uses the structure of spiral winding, rigidity enhancing, and vibrating noise reduces when use, air tight, this kind of structure The radian of elbow can be made to be more nearly arc-shaped, therefore reduce resistance, reduced Oscillation Amplitude, thereby reduce noise, saved The energy.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of original elbow.

Fig. 2 is I enlarged drawing of Fig. 1.

Fig. 3 is the structural schematic diagram of the utility model.

Fig. 4 is II enlarged drawing of Fig. 3.

Fig. 5 is the deployed configuration schematic diagram of strip.

Fig. 6 is the molding sectional view of strip flanging.

In figure：1- strip 2- cutting line.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings of the specification, it should be noted that the utility model Implement embodiment not limited to the following.

See that Fig. 3, a kind of spiral winded type sheet metal elbow, the elbow are connected by 1 spiral winding of strip and formed. See Fig. 4, junction uses molding machine, bending is carried out continuously to strip, spiral winding reel forming, seaming, cutting formed it is curved Head enhances the rigidity of elbow, and vibrating noise reduces when use, air tight.This elbow can be more for 90 °, 45 °, 60 °, 30 ° etc. Kind camber, diameter can be any specification, and typical diameters specification is 100-2000mm.

See Fig. 5, for 1 two sides of strip along being waveform, strip 1 is the sheet metal with a thickness of 0.4-2.0mm.According to elbow and Diameter is different, it is preferable that elbow widest part width L1 is not more than 250mm, and most narrow place's width L2 is 30-70mm.The material of strip 1 can For sheet metals such as galvanized sheet, stainless steel plate, color steel plate, aluminium alloy plates.

See Fig. 3-Fig. 6, the production of spiral winded type sheet metal elbow includes the following steps：

1) blanking is carried out according to elbow expanded view, is waveform using laser cutting machine or plasma cutting machine production edge The strip 1 of 0.4-2.0mm thickness, is shown in Fig. 5, determines that the length of strip 1, strip 1 can disposably most according to the diameter of elbow and quantity 2000 meters of long blanking；Strip is batched to form strip volume, in order to subsequent continuous production；

2) when making elbow, with machine by 1 waveform side flanging of strip, formation upwarps on one side, and another side has a downwarp, by-level Shape, see Fig. 6, by 1 continuous winding reel of strip formed helical structure, adjacent strip 1 upwarp end with have a downwarp end be engaged, company Continuous rolling forms single-lock welt structure and is fitted on elbow outer wall, sees Fig. 3, Fig. 4, through this Continuous maching until completing an elbow Production, then along 2 cutting plate band 1 of cutting line, then second elbow of Continuous maching, until the strip coiled strip is most.

Spiral winded type sheet metal elbow use a 1 spiral winding connection structure of strip, can continuous automatic production, It raises labour productivity.It can be improved 40 times of efficiency with hand-made ratio, greatly reduce cost of manufacture.Product quality can be with simultaneously It is guaranteed.The enhancing of elbow rigidity, and vibrating noise reduces when use, air tight, resistance is small, has saved the energy.

Claims

1. a kind of spiral winded type sheet metal elbow, which is characterized in that the elbow connects shape by a strip spiral winding At；The strip both sides of the edge are wavy curve.

2. a kind of spiral winded type sheet metal elbow according to claim 1, which is characterized in that the strip thickness For the sheet metal of 0.4-2.0mm.

3. a kind of spiral winded type sheet metal elbow according to claim 1, which is characterized in that the strip is most wide Locate L1 and be not more than 250mm, most narrow place L2 is 30~70mm.