CN212144928U

CN212144928U - Gas shielded welding device for heat-resistant steel structural member

Info

Publication number: CN212144928U
Application number: CN202020117551.7U
Authority: CN
Inventors: 周绍辉
Original assignee: Liuzhou Huarui Machinery Co ltd
Current assignee: Liuzhou Huarui Machinery Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-12-15
Anticipated expiration: 2030-01-18

Abstract

The utility model belongs to the technical field of the welding, especially, heat-resistant steel structure gas shielded welding set now provides following scheme, including handheld portion and the connecting pipe of being connected with handheld portion, the connecting pipe is kept away from the one end of handheld portion and is installed the contact site, the contact site includes the barrel that cup joints with the connecting pipe tip is fixed, the outer lane screw thread of barrel has cup jointed the protection and has chewed, the outer lane screw thread that the protection was chewed has cup jointed the insulating tube of contradicting with the contact site outer lane, insulating tube's outer lane sliding connection has the housing of bleeding, it has along its axis array distribution's bracing piece to bleed housing bottom inner circle sliding connection. The utility model discloses take out the flue gas that produces the welding when using and leave, avoid the flue gas to shelter from welding operation personnel's sight, conveniently carry out welding operation, can clear up welder barrel bottom and protection simultaneously and chew the welder of adhesion, avoid the welding slag to block up, make things convenient for the welder to use.

Description

Gas shielded welding device for heat-resistant steel structural member

Technical Field

The utility model relates to the field of welding technique, especially, relate to a heat-resistant steel structure gas shielded welding device.

Background

Gas metal arc welding is a welding method in which an arc continuously fed at a constant speed between a fusible wire and a workpiece to be welded is used as a heat source to fuse the wire and a base metal to form a molten pool and a weld bead. In order to obtain a good weld joint, the external gas is used as an arc medium and protects molten drops, molten pool metal and high-temperature metal of a welding zone from the harmful action of the surrounding air;

utilize welder to weld the work piece in actual welding operation, produce the flue gas during the welding, the flue gas shelters from welding operation personnel's sight easily, and the welding slag that the welding produced simultaneously glues easily on welder's protection is chewed and the barrel, blocks up welder when serious, and it is inconvenient to clear up simultaneously, needs a heat-resisting steel structure spare gas shield welding set for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of heat-resistant steel structure gas shielded welding set has solved the problem that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a gas-shielded welding device for heat-resistant steel structural members comprises a handheld part and a connecting pipe connected with the handheld part, wherein one end of the connecting pipe, which is far away from the handheld part, is provided with a contact part, the contact part comprises a gun barrel fixedly sleeved with the end part of the connecting pipe, the outer ring thread of the gun barrel is sleeved with a protective nozzle, the outer ring thread of the protective nozzle is sleeved with an insulating sleeve which is in conflict with the outer ring of the contact part, the outer ring of the insulating sleeve is in sliding connection with an air exhaust cover shell, the inner ring at the bottom of the air exhaust cover shell is in sliding connection with a supporting rod which is distributed along the axis array, one end of the supporting rod, which is close to the protective nozzle, is hinged with a deflection rod, the other end of the deflection rod is hinged with a scraper with an L-shaped structure, the outer ring of the insulating sleeve is provided with, two sets of the first spout stretches out the one end at rotation groove top and all sets up the second spout that sets up with first spout is perpendicular, and the joint groove has been seted up to the one end that first spout was kept away from to the second spout, and the bottom inside wall rigid coupling in joint groove has the shell fragment of convex structure.

Preferably, the two sets of second chutes are symmetrically arranged along the axis of the insulating sleeve, and the inside of the first chute is slidably sleeved with a sliding block fixedly connected with the inner side wall of the insulating sleeve.

Preferably, the depth of the second sliding groove is consistent with the depth of the first sliding groove, the depth of the clamping groove and the depth of the rotating groove.

Preferably, the top of the air exhaust cover shell is provided with an air exhaust pipe, and the width of the clamping groove is larger than that of the second sliding groove.

Preferably, the thickness of the scraper is consistent with the width of the first chute.

Preferably, the inner ring at the bottom of the air exhaust cover casing is provided with a third sliding chute with a circular arc structure, and the third sliding chute is connected with the support rod in a sliding manner.

In the utility model, the water-saving device is provided with a water-saving valve,

through the handheld portion that sets up, the connecting pipe, the contact site, the protection is chewed, the barrel, insulation support pipe, the housing of bleeding, the slider, the bracing piece, the deflection pole, the scraper, rotate the groove, first spout, joint groove and shell fragment for this design is taken out the flue gas that produces welding when using, avoids the flue gas to shelter from welding operation personnel's sight, conveniently carries out welding operation, can clear up the welder of adhesion on welder barrel bottom and the protection is chewed simultaneously, avoid welding slag to block up, make things convenient for the welder to use.

Drawings

Fig. 1 is a schematic structural view of a gas shielded welding device for a heat-resistant steel structural member according to the present invention;

fig. 2 is a partially enlarged structural schematic view of a gas shielded welding device for a heat-resistant steel structural member according to the present invention;

fig. 3 is a schematic structural view of an insulating sleeve of a gas shielded welding device for a heat-resistant steel structural member according to the present invention;

fig. 4 is a schematic structural diagram of the gas shielded welding device for heat-resistant steel structural members provided by the utility model when cleaning welding slag.

In the figure: the gun comprises a handheld part 1, a connecting pipe 2, a contact part 3, a protective nozzle 4, a gun barrel 5, an insulating sleeve 6, an air exhaust cover 7, a sliding block 8, a supporting rod 9, a deflection rod 10, a scraper 11, a rotating groove 12, a first sliding groove 13, a clamping groove 14 and a spring plate 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a gas shielded welding device for a heat-resistant steel structural member comprises a handheld portion 1 and a connecting pipe 2 connected with the handheld portion 1, wherein a contact portion 3 is installed at one end of the connecting pipe 2 far away from the handheld portion 1, the contact portion 3 comprises a gun barrel 5 fixedly sleeved with the end portion of the connecting pipe 2, a protective nozzle 4 is sleeved on the outer ring thread of the gun barrel 5, an insulating sleeve 6 which is abutted against the outer ring of the contact portion 3 is sleeved on the outer ring thread of the protective nozzle 4, an air exhaust cover 7 is slidably connected with the outer ring of the insulating sleeve 6, supporting rods 9 which are distributed along the axis array are slidably connected with the inner ring at the bottom of the air exhaust cover 7, a deflection rod 10 is hinged at one end of the supporting rod 9 close to the protective nozzle 4, a scraper 11 with an L-shaped structure is hinged at the other end of the deflection rod 10, a rotation groove 12 with, and first spout 13 and rotation groove 12 intercommunication, the second spout that sets up with first spout 13 perpendicular is all seted up to the one end that two sets of first spouts 13 stretched out rotation groove 12 top, and the joint groove 14 has been seted up to the one end that first spout 13 was kept away from to the second spout, and the bottom inside wall rigid coupling in joint groove 14 has the shell fragment 15 of arc structure.

Further, two sets of second spouts are symmetrically arranged along the axis of the insulating sleeve 6, and the inside of the first spout 13 is slidably sleeved with the slider 8 fixedly connected with the inner side wall of the insulating sleeve 6.

In particular, the depth of the second slide groove is identical to the depth of the first slide groove 13, the depth of the catching groove 14, and the depth of the rotation groove 12.

It is worth mentioning that the top of the air exhaust cover 7 is provided with an air exhaust pipe, and the width of the clamping groove 14 is larger than that of the second sliding groove.

Further, the thickness of the scraper 11 coincides with the width of the first chute 13.

In addition, the inner ring at the bottom of the air exhaust cover 7 is provided with a third sliding chute with a circular arc structure, and the third sliding chute is connected with the support rod 9 in a sliding manner.

The working principle is as follows: when the air exhaust hood is used, the insulating sleeve 6 is in threaded sleeve connection with the outer ring of the protective nozzle 4 during installation, the outer ring of the top of the insulating sleeve 6 is abutted against the outer ring of the connecting pipe 2, the air exhaust hood 7 is clamped with the insulating sleeve 6, the sliding block 8 extends upwards from the opening at the bottom of the first sliding groove 13 during clamping, the side edge of the scraper 11 is abutted against the first sliding groove 13, then the sliding block 8 deflects to exhaust the hood 7 along the top of the first sliding groove 13 to move the sliding block 8 from the first sliding groove 13 to the inside of the second sliding groove and finally to the inside of the clamping groove 14, and meanwhile, the sliding block 8 is upwards clamped on the inner side wall of the top of the clamping groove 14 by the arc-shaped elastic sheet 15 positioned inside the clamping groove 14, so that the air exhaust hood 7 is fixedly connected with the insulating sleeve 6, and the scraper 11 is clamped inside the first sliding groove 13;

during welding, the suction pipe on the suction hood 7 is used for sucking air, during air suction, a welding wire positioned at the bottom of the protection nozzle 4 is used for welding a workpiece, then protective gas is sprayed out from the inner ring of the gun barrel 5, then smoke generated by welding is blown out from the outer ring of the bottom of the protection nozzle 4, and at the moment, the suction hood 7 is used for sucking the smoke away, so that the smoke is prevented from obstructing the sight;

when cleaning welding slag adhered to the bottom of the protective nozzle 4 and the gun rod 5, installing the opposite step of installing the air exhaust cover casing 7, pulling out the scraper 11 from the bottom of the first chute 13, then rotating the scraper 11 to extend the scraper 11 from the bottom opening of the protective nozzle 4, at this time, the scraper 11 is abutted against the inner side wall of the protective nozzle 4, the end part of the scraper 11 is abutted against the bottom of the gun barrel 5, meanwhile, the sliding block 8 on the air exhaust cover casing 7 is moved to the position where the first chute 13 is communicated with the rotating groove 12, then, rotating the air exhaust cover casing 7, the sliding block 8 rotates along the rotating groove 12, thereby leading the air exhaust cover casing 7 to drive the scraper 11 to scrape the inner ring of the protective nozzle 4 and the welding slag at the bottom of the gun barrel 5, and the design can extract the welding generated smoke when in use, avoid the smoke from blocking the sight of welding operators, facilitate the welding operation, and simultaneously can clean the bottom of the welding gun adhered to, avoid the welding slag to block up, make things convenient for the welding personnel to use.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a heat-resistant steel structure gas shielded welding set, includes handheld portion (1) and connecting pipe (2) of being connected with handheld portion (1), its characterized in that, the one end that handheld portion (1) was kept away from in connecting pipe (2) installs contact site (3), contact site (3) include with connecting pipe (2) end fixed barrel (5) that cup joints, the outer lane screw thread of barrel (5) has cup jointed protection mouth (4), the outer lane screw thread of protection mouth (4) has cup jointed insulating tube (6) of contradicting with contact site (3) outer lane, the outer lane sliding connection of insulating tube (6) has housing (7) of bleeding, the inner circle sliding connection in housing (7) bottom of bleeding has along its axis array distribution's bracing piece (9), and the one end that bracing piece (9) are close to protection mouth (4) articulates there is deflection pole (10), the other end of deflection pole (10) articulates there is scraper (11) of bleeding L type structure, the outer lane of insulating sleeve (6) is seted up the rotation groove (12) of loop configuration, insulating sleeve (6) bottom both ends are seted up along first spout (13) that its length direction set up, and first spout (13) and rotation groove (12) intercommunication, and are two sets of first spout (13) stretch out the one end at rotation groove (12) top and all set up the second spout with first spout (13) perpendicular setting, and joint groove (14) have been seted up to the one end that first spout (13) were kept away from to the second spout, and the bottom inside wall rigid coupling of joint groove (14) has shell fragment (15) of arc structure.

2. The gas-shielded welding device for the heat-resistant steel structural member as claimed in claim 1, wherein the two sets of second chutes are symmetrically arranged along the axis of the insulating sleeve (6), and the inside of the first chute (13) is slidably sleeved with a sliding block (8) fixedly connected with the inner side wall of the insulating sleeve (6).

3. A gas-shielded welding device for structural members of heat-resistant steel according to claim 1, characterized in that the depth of said second runner is identical to the depth of said first runner (13), the depth of said snap groove (14) and the depth of said rotation groove (12).

4. The gas-shielded welding device for the heat-resistant steel structural members as claimed in claim 1, wherein the top of the air-extracting housing (7) is provided with an air-extracting pipe, and the width of the clamping groove (14) is larger than that of the second sliding groove.

5. A gas-shielded welding apparatus for structural elements of heat-resistant steel according to claim 1, characterized in that the thickness of said scraper (11) corresponds to the width of said first runner (13).

6. The gas-shielded welding device for the heat-resistant steel structural member as recited in claim 1, wherein a third sliding groove of a circular arc structure is formed in an inner ring at the bottom of the air exhaust housing (7), and the third sliding groove is slidably connected with the support rod (9).