Plastic quarter bend and metal member connection structure

A right-angle elbow and connection structure technology, which is applied in the direction of pipeline connection arrangement, pipe/pipe joint/pipe fitting, mechanical equipment, etc., can solve the problem of low bonding strength, loss of connection function, and sealing of plastic parts and metal parts. Problems such as poor performance, to achieve the effect of not easy to fail, low cost, and good connection

Inactive Publication Date: 2010-01-20
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above structural scheme is that the bonding strength of the connection between plastic parts and metal parts is low, especially under the conditions of high temperature, high-intensity movement and strong external corrosion, it is easy to loosen, lose the function of connection, and the sealing performance is not good
Especially right-angle elbows are more likely to be rotated under force, which will loosen the joint surface and cause the above-mentioned connection to fail.

Method used

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  • Plastic quarter bend and metal member connection structure
  • Plastic quarter bend and metal member connection structure
  • Plastic quarter bend and metal member connection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment proposes the setting scheme of the connector:

[0030] The connecting flange 3 of the plastic part of the present invention is tightly connected with the connecting flange surface 6 of the metal part, and adopts a bolt connection structure, that is, a connecting hole 4 for the plastic part is set on the connecting flange 3 of the plastic part, and a connecting hole 4 for the plastic part is set on the connecting flange 3 of the plastic part. Metal fittings connecting holes 7 and connecting bolts 5 are set at the corresponding positions on the flange surface 6 of the metal fittings, and the plastic right-angle elbow 1 and the metal fittings 2 are fastened and connected through the above-mentioned holes. Wherein, the connecting hole 4 of the plastic part is a light hole, the connecting hole 7 of the metal part is a threaded hole, and the connecting bolt 5 passes through the connecting hole 4 of the plastic part, and then is screwed into the connecting hole ...

Embodiment 2

[0033] Such as image 3 and Figure 4 As shown, there are two connecting holes 4 of the plastic parts in the present invention, which are symmetrically distributed according to the axis of the connecting section 8 of the plastic part and the metal part, and the connecting line of the two holes is perpendicular to the axis of the extension section 9 of the plastic part. .

[0034] This embodiment is to ensure the convenience of installing the plastic right-angle elbow 1 on the metal piece 2 . According to the scheme set above, the extension section 9 of the plastic part will not block the installation space of the connecting bolt 5, and the tightening tool can conveniently perform the tightening work.

Embodiment 3

[0036] Such as image 3 As shown, the connecting bolts 5 of the present invention are hexagon socket bolts, and the connecting holes 4 of the plastic parts on the connecting flange 3 of the plastic parts are counterbores.

[0037] The effect of this structure is to embed the head of the connecting bolt 5 in the counterbore of the connecting flange 3 of the plastic part and not be exposed on the outer surface of the connecting flange 3 of the plastic part, so that the structure is compact and does not hinder other structures.

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Abstract

The invention discloses a connection structure of a right-angle elbow pipe and a metal part; wherein, a plastic connecting flange (3) is arranged on the plastic part right-angle elbow pipe (1); a metal part connecting flange surface (6) is arranged on a metal part (2); the plastic connecting flange (3) is tightly connected with the metal part connecting flange surface (6) to realize the connection of the plastic right-angle elbow pipe (1) and the metal part (2). The technical proposal is adopted to enable the connection structure to have the advantages of high temperature resistance, erosion resistance, firm combination, enduring greater force effect, well realizing the connection of the plastic part and the metal part, uneasy malfunction and looseness, reliable sealing, simpler process, low cost and high practical value.

Description

technical field [0001] The invention belongs to the technical field of the connection structure of mechanical parts, in particular, the invention relates to a connection structure between a plastic right-angle elbow and a metal part. Background technique [0002] At present, the connection structure between plastic material parts and metal parts, such as the connection between plastic connecting pipes and metal parts, is widely used in various industries and various industrial products, such as metal valves and pipe fittings. [0003] Although the connection method is different, most of the connection structure is to realize the connection of plastic parts and metal parts by injection molding. This is done by applying an organic or inorganic primer to the metal part, then heating the metal part, followed by hot dipping the metal part in a fluid bed of plastic material, and overmolding with plastic material by injection molding metal parts. [0004] The disadvantage of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L47/26
Inventor 关迪
Owner CHERY AUTOMOBILE CO LTD
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