CN212338523U

CN212338523U - HDPE material welded structure based on ultrasonic heating

Info

Publication number: CN212338523U
Application number: CN202020790527.XU
Authority: CN
Inventors: 王蔚; 李少芳; 晏国泰; 窦昕玥
Original assignee: CCCC Second Harbor Engineering Co
Current assignee: CCCC Second Harbor Engineering Co
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-12
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a pipeline butt fusion technical field specifically indicates a HDPE material welded structure based on ultrasonic heating. Comprising HDPE pipe to be joined; the pipe fitting comprises a semicircular upper pipe fitting and a semicircular lower pipe fitting; the two sides of the upper pipe fitting are provided with jacks formed by plate-shaped structures protruding along the tangential direction; two sides of the lower pipe fitting are provided with bellmouths formed by plate-shaped structures protruding along the tangential direction; the socket extends into the inner side of the bellmouth, and the ultrasonic welding head is positioned on two sides of the upper pipe fitting and the lower pipe fitting and used for heating and melting the welding structure; the welding structure is a strip-shaped or sheet-shaped structure which is tightly attached between the socket and the socket, is arranged in the same length with the socket and is made of hot melting materials. The utility model discloses simple structure, the mode of ultrasonic heating hot melt butt joint is very simple, and the pipe connection is very convenient, and the hot melt butt joint is effectual, has very big spreading value.

Description

HDPE material welded structure based on ultrasonic heating

Technical Field

The utility model relates to a pipeline butt fusion technical field specifically indicates a HDPE material welded structure based on ultrasonic heating.

Background

High Density Polyethylene (HDPE) has good heat resistance and cold resistance, and good chemical stability; the composite material also has higher rigidity and toughness and good mechanical strength; the dielectric property and the environmental stress cracking resistance are also better. In this century, a revolutionary progress has been made in the field of pipelines, namely "steel is replaced by plastic". HDPE pipes (or pipe fittings) are favored, are widely used in the fields of gas transportation, water supply, pollution discharge, agricultural irrigation, mine fine particle solid transportation, oil fields, chemical engineering, post and telecommunications and the like, and are generally applied to gas transportation in particular.

The HDPE pipe is melted at 190-240 deg.c (the melting temperature of different material grades is slightly different), and by means of this characteristic, the two melted parts of the pipe are contacted fully and maintained in proper pressure and correct connection position, so that after cooling, the two parts may be combined firmly. The HDPE connection mode usually adopts two modes of electric hot melting connection and hot melting butt joint.

The connection of HDPE pipes (or pipe fittings) at present has the following technical problems.

1. The hot melt butt joint method adopted at present is socket joint type, needs a large heating plate (larger than the outer diameter of the pipe), heats the heating plate firstly, then inserts the heating plate between the butt joint pipe, takes out the heating plate after the material is melted by the temperature transferred by the heating plate, and then butt joint the pipe. Most energy is lost, and the power requirement of the equipment is high; the working efficiency is not high, and the time is long; meanwhile, the manual operation content is large, and the quality is difficult to guarantee.

2. When the electric hot melting welding is adopted, a hot fuse (sheet) needs to be laid on the pipe wall, and a socket joint is arranged, so that the appearance is influenced, the power requirement of the equipment is higher, and the length of each heating welding is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem mentioned in the background art and providing a HDPE material welded structure based on ultrasonic heating.

The technical scheme of the utility model is that: an HDPE material welding structure based on ultrasonic heating comprises HDPE pipe fittings to be connected; the pipe fitting comprises a semicircular upper pipe fitting and a semicircular lower pipe fitting; the two sides of the upper pipe piece are provided with jacks formed by plate-shaped structures protruding along the tangential direction; bellmouths formed by plate-shaped structures protruding along the tangential direction are arranged on two sides of the lower pipe fitting; the socket is positioned at the inner side of the socket,

the method is characterized in that: the welding structure is adhered between the socket and the bellmouth, and the ultrasonic welding heads are positioned on two sides of the upper pipe fitting and the lower pipe fitting and used for heating and melting the welding structure; the welding structure is a strip-shaped or sheet-shaped structure which is tightly attached between the socket and the socket, is arranged in a through length way with the socket and is made of hot melting materials.

Further the welded structure comprises a weld line; the welding line is of a prismatic structure with a triangular cross section, one side of the prismatic bottom surface of the welding line is tightly attached to the side part of the socket, and the prismatic top is tightly abutted to the side part of the socket.

And a plurality of groups of welding lines which are arranged at intervals along the tangential direction are arranged between the socket and the socket.

Further, the ultrasonic welding head is flush with the socket and the bellmouth, and the ultrasonic welding head and the prismatic bottom surface of the welding line are respectively arranged on two sides of the bellmouth.

The utility model has the advantages that: 1. the utility model has the advantages that the welding structure is arranged between the socket and the socket of the pipe fitting, and the ultrasonic welding head hot-melt welding structure of the side part is utilized to weld the two pipe fittings together, so that the structure is simple, the construction is very convenient, and the welding difficulty is greatly reduced;

2. the welding structure used by the utility model comprises a welding line which is a triangular prism structure, and the installation and the arrangement are very convenient;

3. the utility model arranges a plurality of groups of welding lines between the socket and the socket, thereby improving the area of welding fusion and enhancing the welding effect;

4. the utility model discloses an ultrasonic bonding tool is just to the prismatic bottom surface of weld line, and the heating area is big, and weld line fusion welding is fast.

The utility model discloses simple structure, the mode of ultrasonic heating hot melt butt joint is very simple, and the pipe connection is very convenient, and the hot melt butt joint is effectual, has very big spreading value.

Drawings

FIG. 1: the welding structure of the utility model is schematically shown;

FIG. 2: the enlarged schematic view of part A in FIG. 1 of the present invention;

wherein: 1, installing a pipe fitting; 2, a lower pipe fitting; 3, inserting a socket; 4, a bell mouth; 5-ultrasonic welding head; 6-welding line.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1-2, a HDPE material welded structure based on ultrasonic heating, this embodiment is used for welded pipe fitting structure to include pipe fitting 1 and lower pipe fitting 2 on the semicircle, is the material of HDPE. Wherein, go up pipe fitting 1 both sides and be provided with along the convex platelike structure of tangential direction and form

socket

3, 2 both sides of lower pipe fitting are provided with along the bellmouth 4 that the proud platelike structure of tangential direction formed, and socket 3 is located bellmouth 4 inboard and connects upper and lower pipe fitting as an organic whole, and the tangential direction of this embodiment is to the tangential direction of upper and lower pipe fitting both sides tip, like the upper and lower direction in fig. 1 ~ 2.

This embodiment is pasted between socket 3 and bellmouth 4 and is had welding wire 6, and welding wire 6 is triangular prismatic structure for the cross section, and prismatic bottom surface one side of welding wire 6 is hugged closely at bellmouth 4 lateral part, prismatic top and is supported tightly at the socket 3 lateral part, and welding wire 6 is the structure that is formed by the preparation of hot melt material. A plurality of groups of welding lines 6 which are arranged at intervals along the tangential direction are arranged between the socket 3 and the socket 4.

In order to heat the welding wire 5 to the maximum extent, the ultrasonic welding head 5 of the present embodiment is flush with the socket 3 and the bellmouth 4, the prism-shaped bottom surfaces of the ultrasonic welding head 5 and the welding wire 6 are respectively disposed at two sides of the bellmouth 4, that is, the prism-shaped bottom surface of the welding wire 6 receives the ultrasonic heating of the ultrasonic welding head 5, and the heating area is large, and the hot melting effect is good.

During actual construction: firstly, the welding line 6 is pasted and fixed on the bellmouth 4, then the socket 3 is inserted into the bellmouth 4, the welding line 6 is tightly attached between the socket 3 and the bellmouth 4, the ultrasonic welding heads 5 are arranged on the outer sides of the bellmouth 4 and the socket 3 of the upper pipe fitting and the lower pipe fitting, the ultrasonic welding heads 5 are just opposite to one side of the prismatic bottom surface of the welding line, the welding line 6 is heated through the ultrasonic welding heads 5, and the welding of the socket 3 and the bellmouth 4 is realized through hot melting of the welding line 6.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An HDPE material welding structure based on ultrasonic heating comprises HDPE pipe fittings to be connected; the pipe fitting comprises a semicircular upper pipe fitting (1) and a semicircular lower pipe fitting (2); the two sides of the upper pipe fitting (1) are provided with inserting openings (3) formed by plate-shaped structures protruding along the tangential direction; two sides of the lower pipe fitting (2) are provided with bellmouths (4) formed by plate-shaped structures protruding along the tangential direction; the socket (3) is positioned at the inner side of the socket (4),

the method is characterized in that: the welding structure is adhered between the socket (3) and the bellmouth (4), and the ultrasonic welding heads (5) are positioned on two sides of the upper pipe fitting (1) and the lower pipe fitting (2) and used for heating and melting the welding structure; the welding structure is a strip-shaped or sheet-shaped structure which is tightly attached between the socket (3) and the socket (4), is arranged in the through length of the socket (3) and the socket (4) and is made of hot melting materials.

2. An ultrasonically heated HDPE material weld structure as claimed in claim 1, wherein: the welding structure comprises a welding line (6); the cross section of the welding line (6) is of a triangular prism structure, one side of the prism bottom surface of the welding line (6) is tightly attached to the side of the socket (4), and the prism tip is tightly attached to the side of the socket (3).

3. An ultrasonically heated HDPE material weld structure as claimed in claim 2, wherein: a plurality of groups of welding lines (6) which are arranged at intervals along the tangential direction are arranged between the socket (3) and the socket (4).

4. An ultrasonically heated HDPE material weld structure as claimed in claim 2 or 3, wherein: the ultrasonic welding head (5) is flush with the socket (3) and the bellmouth (4), and the prismatic bottom surfaces of the ultrasonic welding head (5) and the welding line (6) are respectively arranged on two sides of the bellmouth (4).