CN214185713U

CN214185713U - Adjustable cable thermite welding mold for medium and small pipelines

Info

Publication number: CN214185713U
Application number: CN202022293698.4U
Authority: CN
Inventors: 韩强; 王振鑫; 李英伟
Original assignee: Sinopec Engineering Group Co Ltd; Sinopec Nanjing Engineering Co Ltd
Current assignee: Sinopec Engineering Group Co Ltd; Sinopec Nanjing Engineering Co Ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-09-14
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses an adjustable cable thermite welding mould for medium and small pipelines, which is characterized in that the mould comprises a novel body, a replaceable multi-size welding mould and a stainless steel hose clamp, wherein the novel body is hollow; selecting welding dies with the lower surfaces of different radians according to different outer diameters of the medium and small pipelines, and inserting the welding dies into the body; set up two larynx hoop fixed slot on the novel body, the stainless steel larynx hoop is based on two larynx hoop fixed slot with the novel body is fixed to the pipeline. This novel adjustable cable thermite welding mould has realized the laminating welding of mould and pipeline surface. One set of welding mould can be used for welding small and medium pipelines with various sizes; the service life of the body is prolonged by the split design, and the cost is saved; the double stainless steel hose clamp is fixedly designed, so that the stability is good, and the operation is safer.

Description

Adjustable cable thermite welding mold for medium and small pipelines

Technical Field

The utility model belongs to the technical field of electrical design and installation, concretely relates to adjustable's cable thermite welding mould for medium and small pipeline.

Background

In buried steel piping systems, there is often a cable welded to the pipe, such as a cathode cable in a cathodic protection system. Cable welding typically takes the form of thermite welding, i.e., a flux is added to a welding die and then ignited by an ignition gun to heat and melt the metal by reaction between the metal oxide and the aluminum metal to weld the cable to the metal pipe.

However, in the process of welding pipelines with medium and small pipe diameters, the lower surface of the conventional thermite welding mould is a plane, and the radian of the surface of the medium and small pipelines is large, so that the lower surface of the mould cannot be attached to the surface of the pipeline. During welding, molten metal often leaks laterally along the gap between the die and the pipe, resulting in a failed weld. The conventional die is designed integrally, the service life is short, the die is scrapped integrally after being welded for 50 to 100 times generally, and the cost is high. In addition, the conventional welding mould is provided with a handle, and the mould is easy to shake in the single-hand operation process. A great deal of heat and black smoke are released during chemical reaction, welding flux is sputtered, and the whole process is close to the handle, so that the operation environment is relatively severe, and the safety is low.

Referring to fig. 1 and 2, a mold 1a is placed on the pipe, the cable is inserted into the cable through hole 1g, a steel plate 7 is added, and flux 5 is poured. The cable is welded to the metal pipe by being ignited at the ignition hole 1b by an ignition gun, generating heat by a reaction between the metal oxide and the metal aluminum, heating and melting the metal. The bottom view of the conventional mould is a plane, but in the welding of pipelines with medium and small pipe diameters, the conventional thermite welding mould cannot be attached to the surface of the pipeline because the lower surface of the conventional thermite welding mould is a plane. During welding, molten metal often leaks sideways along the die-to-pipe gap 6, resulting in weld failure.

Further: the conventional die is designed integrally, the service life is short, the die is scrapped integrally after being welded for 50 to 100 times generally, and the cost is high. The conventional mold is provided with a handle, the mold needs to be held by one hand to be stable, the other hand is used for dosing and ignition, and the mold is easy to shake in the operation process. A great deal of heat and black smoke are released during chemical reaction, welding flux is sputtered, and the whole process is close to the handle, so that the operation environment is relatively severe, and the safety is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to a cable thermite welding mould for adjustable of well small pipeline has solved the problem that the clearance side leakage of fused metal passes through mould and pipeline in the conventional welding mould welding process.

The technical scheme is as follows:

the utility model discloses an adjustable cable thermite welding mould for medium and small pipelines, which comprises a novel body, a replaceable multi-size welding mould and a stainless steel hose clamp, wherein the novel body is hollow; selecting welding dies with the lower surfaces of different radians according to different outer diameters of the medium and small pipelines, and inserting the welding dies into the body; set up two larynx hoop fixed slot on the novel body, the stainless steel larynx hoop is based on two larynx hoop fixed slot with the novel body is fixed to the pipeline.

Preferably, the multi-size welding mould is suitable for welding various medium and small-diameter pipelines of 20 inches or less.

Preferably, the novel body is also provided with a novel ignition hole and a novel exhaust hole; the arc top of the radian of the bottom of the welding mould is provided with a novel cable perforation.

Preferably, the novel body further comprises a stainless steel hinge arranged on the front face of the novel body.

Preferably, the welding mould further comprises a fixed guide rail, and the fixed guide rail is fixed at the top of the welding mould; a concave platform at the top end of the hollow part of the novel body; the fixed guide rail and the concave station are welded to realize the fixation of the welding mould and the novel body.

The beneficial effects of the utility model

This novel adjustable cable thermite welding mould has realized the laminating welding of mould and pipeline surface. One set of welding mould can be used for welding small and medium pipelines with various sizes; the service life of the body is prolonged by the split design, and the cost is saved; the double stainless steel hose clamp is fixedly designed, so that the stability is good, and the operation is safer.

Drawings

FIG. 1 is a front view of a conventional welding mold in the background art

FIG. 2 is a side view of a conventional welding mold in the background art

Fig. 3 is the utility model discloses a novel welding mould's top view

Fig. 4 is a left side view of the novel welding mold

Fig. 5 is a front view of the novel welding mold of the present invention

Fig. 6 is a right side view of the novel welding mold of the present invention

Fig. 7 is a left side view of the welding installation state of the novel welding mold

FIG. 8 is a front view of the welding installation state of the novel welding mold of the present invention

FIG. 9 is a 3D model diagram of the body of the novel welding mold and the split body of the multi-size welding mold

FIG. 10 is a 3D model diagram of the welding installation of the novel welding mold of the present invention

The reference signs are: 1 a-traditional body, 1 b-traditional ignition hole, 1 c-traditional exhaust hole, 1 d-aluminum alloy hinge, 1 g-traditional cable perforation, 2 a-novel body, 2 b-novel ignition hole, 2 c-novel exhaust hole, 2 d-stainless steel hinge, 2 e-replaceable multi-size welding mold, 2 f-fixed guide rail, 2 g-novel cable perforation, 2 h-throat hoop fixed clamping groove, 2 k-stainless steel throat hoop, 3-cable, 4-pipeline, 5-welding agent, 6-gap between pipeline and mold, and 7-steel disc.

Detailed Description

The present invention will be further explained with reference to the following examples, but the scope of the present invention is not limited thereto:

with reference to fig. 3-10, the novel die comprises a novel body 2a and an exchangeable multi-sized welding die 2e, the pipe welding die 2e with the surface having different radians is selected according to different small and medium pipe outer diameters, and then the pipe welding die is inserted into the novel body 2a, and the fixed guide rail 2f is used for welding the die 2e without a bolt fastener, so that the operation is convenient. The mould 2e with different radians realizes the attachment of the mould and the surface of the pipeline, and solves the problem that molten metal leaks laterally through the gap 6 between the mould and the pipeline 4 in the welding process of the conventional mould.

The novel die comprises a novel body 2a and a replaceable multi-size welding die 2e in split design, and one set of die can be used for welding small and medium pipelines in various sizes. The replaceable multi-size welding die 2e is a quick-wear part, the service life of the welding die is the same as that of a conventional welding die, and the welding die is still used for 50-100 times, but the novel body 2a does not need to be replaced frequently, the service life of the body is prolonged, and the cost is saved.

The novel body 2a is provided with two throat hoops 2h fixing clamping grooves, and the novel body 2a is fixed on the pipeline through the two stainless steel throat hoops 2 k. Wherein, the steel band of single hoop larynx passes through single fixed slot 2 h. The double hose clamp has good design and fixation stability, convenient assembly and disassembly and can be used for multiple times. The steel band part of larynx hoop adds the PVC sheath, and the sheath position can move the regulation, prevents to scratch the anticorrosive coating of pipeline 4 lower surface because of fixed novel body 2 a. The body does not need to be held by a hand in the welding process, and the problem that the handle is easy to shake is solved. During chemical reaction, operators can keep away from released heat and black smoke, spattered welding flux is avoided, and operation is safer.

It should be noted that the novel body 2a is also provided with a novel ignition hole 2b and a novel exhaust hole 2 c; the arc top of welding mould 2e bottom radian sets up novel cable and perforates 2 g. The term "new" is only used to distinguish from the prior art in fig. 1 and 2, and the essential components are the same.

The difference is that the front surface of the novel body 2a is provided with a stainless steel hinge 2 d.

The utility model discloses a cable thermite welding mould still includes fixed guide rail 2f, and fixed guide rail 2f is fixed at the top of welding mould 2 e; a concave platform at the top end of the hollow part of the novel body 2 a; the fixed guide rail 2f and the concave table are welded to fix the welding mold 2e and the novel body 2 a.

The principal features and advantages of the invention have been shown and described. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution modes and the like fall within the scope of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. An adjustable cable thermite welding mould for medium and small pipelines is characterized by comprising a novel body (2a), a replaceable multi-size welding mould (2e) and a stainless steel hose clamp (2k), wherein the novel body (2a) is hollow; according to different outer diameters of the medium and small pipelines, welding dies (2e) with different radians on the lower surfaces are selected, and the welding dies (2e) are inserted into the body (2 a); the novel body (2a) is provided with two throat hoop fixing clamping grooves (2h), and the stainless steel throat hoop (2k) fixes the novel body (2a) to the pipeline (4) based on the two throat hoop fixing clamping grooves (2 h).

2. The adjustable mold for thermite welding of cables for medium and small pipes according to claim 1, characterized in that the multi-size welding mold (2e) is suitable for welding of pipes of various medium and small pipe diameters, 20 inches and below.

3. The adjustable type cable thermite welding mold for medium and small pipes according to claim 1, wherein the novel body (2a) is further provided with a novel ignition hole (2b) and a novel exhaust hole (2 c); the arc top of the radian of the bottom of the welding mould (2e) is provided with a novel cable perforation (2 g).

4. The adjustable thermite welding mould for cables for small and medium sized pipes according to claim 1, characterized in that it further comprises stainless steel hinges (2d) placed on the front of the new body (2 a).

5. The adjustable thermite welding mould for cables for small and medium sized pipes according to claim 1, characterized in that it further comprises a fixed guide rail (2f), the fixed guide rail (2f) is fixed on top of the welding mould (2 e); a concave platform at the top end of the hollow part of the novel body (2 a); the fixed guide rail (2f) and the concave station are welded to realize the fixation of the welding mould (2e) and the novel body (2 a).