CN215747573U

CN215747573U - Butt joint device for welding gas pipeline

Info

Publication number: CN215747573U
Application number: CN202122054862.0U
Authority: CN
Inventors: 陶春辉
Original assignee: NANJING GANGHUA GAS CO LTD
Current assignee: NANJING GANGHUA GAS CO LTD
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-08
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a butt joint device for welding a gas pipeline, which comprises a movable frame and two fixed modules, wherein the movable frame is provided with a plurality of connecting rods; universal wheels are arranged on the bottom corners of the movable frame, and lock catches are arranged on the universal wheels; a workbench is horizontally fixed at the top of the movable frame, an installation groove is formed in the workbench, a lead screw is rotationally arranged in the installation groove, and one end of the lead screw is connected with a motor; the two fixing modules comprise sliding blocks, pre-fixing plates and fixing pieces; the side surfaces of the sliding blocks are provided with threaded through holes matched with the lead screws, and the rotating directions of the threaded through holes on the two sliding blocks are opposite; the pre-fixing plate is of an arc structure and is fixed at one end, far away from the center of the lead screw, of the sliding block; the fixing piece comprises a first clamping plate and a second clamping plate. The utility model effectively ensures that the welding surfaces of the two gas pipelines are in a vertical state, the two welding surfaces are tightly attached, and the welding quality is ensured.

Description

Butt joint device for welding gas pipeline

Technical Field

The utility model belongs to the technical field of gas pipeline installation, and particularly relates to a butt joint device for welding a gas pipeline.

Background

The gas pipe is a special pipeline for conveying combustible gas, is convenient to install, reliable in connection, corrosion-resistant, free of gas blockage, good in flexibility, long in service life and quite wide in application field.

The utility model discloses a chinese utility model patent that publication number is CN213945503U discloses a gas pipeline construction is with butt joint fixer, it includes the mounting, the slider, a supporting plate, connecting plate and positioning bolt, the mounting interval is provided with two, the slider rigid coupling is in the bottom of mounting, the below of mounting is arranged in to the backup pad, the spout has been seted up to one side that the backup pad is close to the mounting, the slider is inserted and is located in the spout and slide with the spout and be connected the setting, the connecting plate rigid coupling is in the slider top, positioning bolt threaded connection on the connecting plate and with the top joint setting of backup pad. It has the effect of improving the convenience of use. However, when the butt joint fixer is used for fixing two gas pipelines to be welded, because the two gas pipelines are only provided with one fixing point, when the butt joint fixer is used for welding, two welding surfaces incline upwards in an inclined mode, the welding quality is seriously influenced, and in addition, in the construction process of the gas pipelines, the butt joint fixer is inconvenient to move, and the installation efficiency of the gas pipelines is seriously restricted.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present invention aims to: the butt joint device for welding the gas pipeline comprises a movable frame and two fixed modules;

universal wheels are arranged on the corners of the bottom of the movable frame, and lock catches are arranged on the universal wheels;

a workbench is horizontally fixed at the top of the movable frame, an installation groove is formed in the workbench along the length direction of the workbench, a lead screw is rotatably arranged in the installation groove along the length direction of the installation groove, and one end of the lead screw is connected with a motor;

the two fixing modules respectively comprise a sliding block, a pre-fixing plate and a fixing piece; the side surfaces of the sliding blocks are provided with threaded through holes matched with the lead screw, the two sliding blocks are sleeved at the two ends of the lead screw through the threaded through holes of the two sliding blocks, the length of the two sliding blocks from the center of the lead screw is equal, and the rotating directions of the threaded through holes on the two sliding blocks are opposite; the pre-fixing plate is of an arc-shaped structure and is fixed at one end, far away from the center of the lead screw, of the sliding block; the fixing piece comprises a first clamping plate and a second clamping plate; the first clamping plate and the second clamping plate are of semicircular structures, the first clamping plate is fixed at one end, close to the center of the lead screw, of the sliding block, one end of the second clamping plate is hinged to one end of the first clamping plate, a bolt is arranged at the other end of the second clamping plate, and the other ends of the first clamping plate and the second clamping plate are fixed through the bolt.

Preferably, the position, close to the universal wheel, on the bottom frame of the moving frame is vertically and threadedly connected with a first stud, a cushion block is welded at the bottom of the first stud, and a first nut is sleeved at the top of the first stud.

Preferably, the output end of the motor is connected with a reduction gearbox, and the motor is connected with a screw rod through the reduction gearbox.

Preferably, the second clamping plate is in threaded connection with two second studs, the bottoms of the second studs are rotatably provided with arc-shaped pressing plates, and the upper parts of the second studs are sleeved with second nuts.

Preferably, both sides of the mounting groove are provided with limit grooves along the length direction thereof, both sides of the sliding block are provided with limit sliding blocks matched with the limit grooves, and the sliding block is arranged on the limit grooves in a sliding manner through the limit sliding blocks on both sides.

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

(1) during welding, the welding surfaces of the two gas pipelines can be effectively ensured to be in a vertical state, and the two welding surfaces are tightly attached, so that the welding quality is ensured;

(2) the labor intensity of operators is reduced, and the welding efficiency is accelerated;

(2) simple structure, convenient operation is swift.

Drawings

In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive efforts.

Fig. 1 is a schematic structural view of a movable frame in the present embodiment;

FIG. 2 is an enlarged partial view of the first stud of FIG. 1;

FIG. 3 is a schematic structural view of the movable frame with a limiting groove in this embodiment;

fig. 4 is a schematic structural diagram of a butt joint device for welding a gas pipeline in the present embodiment;

FIG. 5 is an enlarged view of a portion of the anchor shown in FIG. 4;

FIG. 6 is a schematic structural diagram of a butt joint device for welding a gas pipeline, provided with an arc-shaped pressing plate in the present embodiment;

fig. 7 is an enlarged view of a portion of the arcuate platen of fig. 6.

Detailed Description

The technical solutions in the specific embodiments of the present invention will be clearly and completely described below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A butt joint device for welding a gas pipeline comprises a movable frame and two fixed modules;

as shown in fig. 1, universal wheels 5 are arranged on the bottom corners of the movable frame 1, and lock catches are arranged on the universal wheels 5; in order to further and stably fix the moving frame 1 after the moving frame is fixed, as shown in fig. 2, a first stud 8 is vertically and threadedly connected to a position, close to the universal wheel 5, on a bottom frame of the moving frame 1, a cushion block 6 is welded to the bottom of the first stud 8, and a first nut 9 is sleeved on the top of the first stud 8; after the movable frame 1 reaches the designated position, the first stud 8 is rotated, so that the cushion block 6 supports the whole movable frame 1, and the universal wheel 5 is separated from the ground, so that the movable frame 1 can be stably fixed.

The top level of removal frame 1 is fixed with workstation 2, be equipped with mounting groove 3 along its length direction on the workstation 2, it is equipped with lead screw 4 to rotate along its length direction in the mounting groove 3, the one end of lead screw 4 is connected with motor 7, realizes the rotation of lead screw 4 under the drive of motor 7, preferably, the output of motor 7 is connected with the reducing gear box (not drawn in the picture), motor 7 passes through the reducing gear box is connected with lead screw 4, can control the rotational speed of lead screw 4 accurately.

As shown in fig. 4, each of the two fixing modules includes a sliding block 11, a pre-fixing plate 12 and a fixing member 13; the side surfaces of the sliding blocks 11 are provided with threaded through holes matched with the lead screw 4, the two sliding blocks 11 are sleeved at two ends of the lead screw 4 through the threaded through holes of the sliding blocks, the lengths of the two sliding blocks 11 away from the center of the lead screw 4 are equal, and the rotating directions of the threaded through holes on the two sliding blocks 11 are opposite; the pre-fixing plate 12 is of an arc-shaped structure, and the pre-fixing plate 12 is fixed at one end, far away from the center of the lead screw 4, of the sliding block 11; as shown in fig. 5, the fixing member 13 includes a first clamping plate 14 and a second clamping plate 15; the first clamping plate 14 and the second clamping plate 15 are both in a semicircular structure, the first clamping plate 14 is fixed at one end, close to the center of the lead screw 4, of the sliding block 11, one end of the second clamping plate 15 is hinged to one end of the first clamping plate 14, and the other ends of the first clamping plate 14 and the second clamping plate 15 are fixed through bolts 16.

When two gas pipelines are welded, firstly, the two gas pipelines are placed on the pre-fixing plate 12 and the first clamping plate 14, then the second clamping plate 15 is closed, and the bolt 16 on the fixing piece 13 is screwed, so that the two gas pipelines are firmly fixed, and the welding surfaces of the two gas pipelines are in vertical positions; then starting the motor 7, rotating the screw rod 4, enabling the two sliding blocks 11 to approach each other until the welding surfaces of the two gas pipelines are tightly attached, and closing the motor 7 for welding.

When the size of the gas pipeline changes, in order to firmly fix the gas pipeline, the inventor designs the following scheme: as shown in fig. 6 and 7, two second studs 18 are connected to the second clamping plate 15 in a threaded manner, an arc-shaped pressing plate 20 is rotatably arranged at the bottom of each second stud 18, and a second nut 19 is sleeved on the upper portion of each second stud 18; the gas pipe is fixed by adjusting the position of the second stud 18 on the second clamping plate 15 so that the arc-shaped pressing plate 20 firmly presses the upper part of the gas pipe to be welded, and then tightening the second nut 19.

In order to ensure that the two sliding blocks 11 perform linear motion on the screw rod 4, as shown in fig. 3, both sides of the mounting groove 3 are provided with a limiting groove 10 along the length direction thereof, both sides of the sliding block 11 are provided with a limiting sliding block (not shown in the figure) adapted to the limiting groove 10, and the sliding block 11 is slidably disposed on the limiting groove 10 through the limiting sliding blocks on both sides.

The butt joint device for welding the gas pipeline provided by the utility model is described in detail, a specific example is applied in the detailed description to explain the structure and the working principle of the butt joint device, and the description of the embodiment is only used for helping to understand the method and the core idea of the butt joint device. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of the present invention, which is protected by the new claims.

Claims

1. A butt joint device for welding a gas pipeline is characterized by comprising a movable frame and two fixed modules;

2. The butt joint device for welding the gas pipeline according to claim 1, wherein a first stud is vertically and threadedly connected to a position, close to the universal wheel, on a bottom frame of the movable frame, a cushion block is welded to the bottom of the first stud, and a first nut is sleeved on the top of the first stud.

3. The butt joint device for welding the gas pipeline as claimed in claim 1, wherein the output end of the motor is connected with a reduction gearbox, and the motor is connected with a screw rod through the reduction gearbox.

4. The butt joint device for welding the gas pipeline according to any one of claims 1 to 3, wherein two second studs are connected to the second clamping plate in a threaded manner, an arc-shaped pressing plate is rotatably arranged at the bottom of each second stud, and a second nut is sleeved on the upper portion of each second stud.

5. The butt joint device for welding the gas pipeline according to any one of claims 1 to 3, wherein both sides of the mounting groove are provided with a limiting groove along the length direction thereof, both sides of the slider are provided with a limiting slider adapted to the limiting groove, and the slider is slidably disposed on the limiting groove through the limiting sliders on both sides.