CN205957760U

CN205957760U - Square steel pipe of bending

Info

Publication number: CN205957760U
Application number: CN201620614094.6U
Authority: CN
Inventors: 刘茂柏
Original assignee: Tianjin Jinli Shengye Co Ltd
Current assignee: Tianjin Jinli Shengye Co Ltd
Priority date: 2016-06-17
Filing date: 2016-06-17
Publication date: 2017-02-15
Anticipated expiration: 2026-06-17

Abstract

The utility model provides a square steel pipe of bending, including square pipe wall, the pipe wall inner chamber of square pipe wall is the square, and four edges in outside of square pipe wall are equipped with the chamfer, the department of bending at square pipe wall has predetermine many ring channels, and the cross -section of ring channel is the rectangle, is the degree of depth of ring channel 20% of square wall thickness degree is 40%, the width of ring channel 1.2 of the degree of depth 1.5 doubly, still predetermine outside thickening portion in the department of the bending outside of square pipe wall, this outside thickening portion includes rectangle bottom and arc -shaped top, is the embedding degree of depth of rectangle bottom 40% of square wall thickness degree in the square pipe wall of rectangle bottom embedding 50%. Square steel pipe of bending have following advantage: this square steel pipe of bending has done the damage preventing processing through multiple means such as ring channel, joint strip, outside thickening portion and metal mesh muscle respectively at the inboard of the department of bending and the outside, has and changes the processing of bending, and the effect of bending is unanimous, the advantages such as the damage proportion is little, sealing performance is good of bending.

Description

A kind of square bending steel pipe

Technical field

This utility model belongs to radiator manufacturing technology field, especially relates to a kind of square bending steel pipe.

Background technology

Radiator is in northern heating area using very universal, the steel pipe usually circle that existing radiator uses Shape or elliptic cross-section, rectangular tube is special due to shape, use considerably less, but, rectangular tube have stacking be conveniently difficult to incline Fall, easily transport, assembling radiator docks the advantages of be more convenient, and has certain development potentiality, but, square tube is compared in bending Round tube or oval pipe are more easy to bending damage, accordingly, it would be desirable to make further to existing common direction bending steel pipe Improve and perfect.

Content of the invention

In view of this, this utility model is directed to a kind of square bending steel pipe, to solve rectangular steel tube in Forging Process In easily occur corner damage problem.

For reaching above-mentioned purpose, the technical solution of the utility model is realized in：

A kind of square bending steel pipe, including square tube wall, the tube wall inner chamber of described square tube wall is square, described square The outside of tube wall four seamed edge is provided with chamfering；

It is preset with a plurality of cannelure, the rectangular cross-section of described cannelure, described cannelure in the bending part of square tube wall Depth be square pipe thickness 20%-40%, the width of described cannelure is 1.2-1.5 times of depth；

Also it is preset with outside thickening part outside the bending part of square tube wall, outside this, thickening part includes rectangular base and arc Shape top, described rectangular base embeds in square tube wall, and the insert depth of rectangular base is the 40%- of square pipe thickness 50%.

Further, the inner side of the bending part in square tube wall for the described cannelure is additionally provided with intensification inside groove, in described intensification The depth of groove is the 20%-30% of annular groove depth.

Further, described cannelure includes 3.

Further, described cannelure has been embedded in sealing joint strip.

Further, the bending part of described square tube wall is coated with the muscle net of protective effect.

Further, described muscle net is metal ribs net.

With respect to prior art, a kind of square bending steel pipe described in the utility model has the advantage that：Rectangular steel tube It is fixed easily, easily piles up, easily transports, compare pipe and elliptical tube in process using more convenient, this square bending steel pipe exists The inner side and outer side of bending part is done by multiple means such as cannelure, sealing joint strip, outside thickening part and wire netting muscle respectively Antisitic defect is processed, and has and is more easy to Bending Processing, bending effect is consistent, bending damages that ratio is little, good seal performance the advantages of.

Brief description

The accompanying drawing constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new The schematic description and description of type is used for explaining this utility model, does not constitute to improper restriction of the present utility model.? In accompanying drawing：

Fig. 1 is the schematic diagram of a kind of square bending steel pipe described in this utility model embodiment；

Fig. 2 is the schematic cross-section of a kind of square bending steel pipe described in this utility model embodiment.

Description of reference numerals：

The square tube wall of 10-；11- tube wall inner chamber；Thickening part outside 12-；13- cannelure.

Specific embodiment

It should be noted that in the case of not conflicting, the embodiment in this utility model and the feature in embodiment can To be mutually combined.

In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score, The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction Or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that It is to restriction of the present utility model.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating Or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately It is described, " multiple " are meant that two or more.

In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition State concrete meaning in this utility model for the term.

1-2 in conjunction with the embodiments to describe this utility model in detail below with reference to the accompanying drawings.

A kind of square bending steel pipe, including square tube wall (10), the tube wall inner chamber (11) of described square tube wall (10) is just Square, outside four seamed edge of described square tube wall 10 is provided with chamfering；

It is preset with a plurality of cannelure (13) in the bending part of square tube wall (10), the section of described cannelure (13) is square Shape, the depth of described cannelure (13) is the 20%-40% of square tube wall (10) thickness, and the width of described cannelure (13) is deep 1.2-1.5 times of degree；

Also it is preset with outside thickening part (12) outside the bending part of square tube wall (10), outside this, thickening part (12) include Rectangular base and arc top, described rectangular base embeds in square tube wall 10, and the insert depth of rectangular base is square tube wall (10) 40%-50% of thickness.

The inner side of the bending part in square tube wall (10) for the described cannelure (13) is additionally provided with intensification inside groove, described intensification inside groove Depth be cannelure (13) depth 20%-30%.

Described cannelure (13) includes 3.

Described cannelure (13) has been embedded in sealing joint strip.

The bending part of described square tube wall (10) is coated with the muscle net of protective effect.

Described muscle net is metal ribs net.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all this Within the spirit of utility model and principle, any modification, equivalent substitution and improvement made etc., should be included in this utility model Protection domain within.

Claims

1. a kind of square bending steel pipe it is characterised in that：Including square tube wall (10), the tube wall inner chamber of described square tube wall (10) (11) it is square, outside four seamed edge of described square tube wall (10) is provided with chamfering；

It is preset with a plurality of cannelure (13), the rectangular cross-section of described cannelure (13), institute in the bending part of square tube wall (10) The depth stating cannelure (13) is the 20%-40% of square tube wall (10) thickness, and the width of described cannelure (13) is depth 1.2-1.5 again；

Also it is preset with outside thickening part (12) outside the bending part of square tube wall (10), outside this, thickening part (12) include rectangle Bottom and arc top, described rectangular base embeds in square tube wall (10), and the insert depth of rectangular base is square tube wall (10) 40%-50% of thickness.

2. a kind of square bending steel pipe according to claim 1 it is characterised in that：Described cannelure (13) is in square tube wall (10) inner side of bending part is additionally provided with intensification inside groove, and the depth of described intensification inside groove is the 20%- of cannelure (13) depth 30%.

3. a kind of square bending steel pipe according to claim 1 it is characterised in that：Described cannelure (13) includes 3.

4. a kind of square bending steel pipe according to claim 1 it is characterised in that：Described cannelure (13) has been embedded in close Seal strip.

5. a kind of square bending steel pipe according to claim 1 it is characterised in that：The bending part of described square tube wall (10) It is coated with the muscle net of protective effect.

6. a kind of square bending steel pipe according to claim 5 it is characterised in that：Described muscle net is metal ribs net.