CN216575981U - Welding gun convenient for replacing bent pipe - Google Patents

Abstract

The utility model discloses a welding gun convenient for replacing a bent pipe, which comprises a handle, a positioning part and a nozzle, wherein the positioning part is arranged at one end of the handle, one end of the bent pipe is connected with the positioning part, the other end of the bent pipe is connected with the nozzle, a mounting hole for mounting the positioning part is formed at one end of the handle, a regular hexagonal cavity is arranged in the mounting hole, the handle comprises two handle covers which are mutually clasped, a positioning part matched with the regular hexagonal cavity is arranged on the positioning part, a groove is formed in the wall of the regular hexagonal cavity, a protrusion matched with the groove is arranged on the positioning part, a mounting groove for mounting the bent pipe is formed in the positioning part, a quadrangular cavity is arranged in the positioning groove, the positioning part comprises two positioning blocks which are mutually clasped, and a clamping part matched with the quadrangular cavity is arranged on the bent pipe. The welding gun provided by the utility model has the advantages that the handle is not required to be replaced, only the positioning piece is required to be replaced, the production cost is reduced, the replacement efficiency is improved, and the welding gun is convenient to popularize and use.

Description

Welding gun convenient for replacing bent pipe

Technical Field

The utility model relates to the technical field of welding guns, in particular to a welding gun with a bent pipe convenient to replace.

Background

The welding gun is used as a gas welding tool for performing welding operation in the welding process, the welding gun is shaped like a gun, the front end of the welding gun is provided with a nozzle for spraying high-temperature flame, the rear end of the welding gun is provided with a handle for being held by a user, and the nozzle is connected with the handle through a bent pipe. At present, the welder on the market, the one end of return bend is provided with the screw thread, and this end of return bend is connected with the handle through the screw thread, and the return bend of a specification only can be connected rather than the handle of adaptation, and when the user need change the return bend of thickness difference, only can redevelop supporting handle structure, and the handle die sinking, the process of moulding plastics is comparatively loaded down with trivial details, and the cost input is higher, is unfavorable for enterprise control manufacturing cost. Moreover, the operation process of screwing the elbow into the handle is troublesome, the connection stability is not high, and the operation experience of a user is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the defects in the prior art, the welding gun which saves cost and is convenient for replacing the bent pipe is provided.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a welding gun convenient for replacing a bent pipe comprises a handle, a positioning piece and a nozzle, wherein the positioning piece is arranged at one end of the handle, one end of the elbow is connected with the positioning piece, the other end of the elbow is connected with the nozzle, one end of the handle is provided with a mounting hole for mounting the positioning piece, a regular hexagon cavity is arranged in the mounting hole, the handle comprises two handle covers which are mutually clasped, the positioning piece is provided with a positioning part which is matched with the regular hexagonal cavity, a groove is arranged on the wall of the regular hexagonal cavity, a bulge matched with the groove is arranged on the positioning part, the positioning piece is internally provided with a mounting groove for mounting the elbow, a quadrilateral cavity is arranged in the mounting groove, the locating piece comprises two locating blocks which are mutually embraced, and a clamping part matched with the quadrilateral cavity is arranged on the bent pipe.

Further, the locating piece is including location semicolumn and brim of a hat, the brim of a hat is protruding to be established the one end of location semicolumn, location portion sets up on the location semicolumn, except in the mounting hole the part outside the regular hexagon cavity is circular cavity, circular cavity with the location semicolumn cooperatees, the brim of a hat with have on the handle the tip counterbalance of mounting hole is held.

Furthermore, the brim is of a truncated cone-shaped structure, and a weight reduction cavity is formed in the brim.

Further, the cross section of the weight-reducing cavity is triangular.

Furthermore, location portion includes six locating plane, six locating plane evenly sets up on the periphery wall of setting element, wherein three locating plane sets up one of them on the location semicircle post, three in addition locating plane sets up another on the location semicircle post, and every be located the centre on the location semicircle post set up on the locating plane the arch.

Furthermore, the groove wall of the mounting groove is provided with clamping grooves at two ends of the quadrilateral cavity, the bent pipe is provided with flanges at two ends of the clamping part, and the flanges are clamped with the clamping grooves.

Further, the two handle covers are detachably connected.

The utility model has the beneficial effects that: according to the welding gun with the conveniently replaced bent pipe, when a user needs to replace the bent pipe, the user does not need to replace a handle matched with the bent pipe, only needs to replace the positioning piece, the universality of the handle is improved, the production cost is reduced, the control of the production cost is facilitated, the operation is simple and convenient, the replacement efficiency is improved, and the popularization and the use are convenient.

Drawings

The utility model is further illustrated by the following figures and examples.

FIG. 1 is a schematic structural view of a welding gun with a conveniently replaced elbow according to the present invention (one of the handle covers is omitted);

fig. 2 is an exploded view of the weld gun of fig. 1 facilitating the replacement of the elbow.

In the figure: 1. the novel cap comprises a handle, 11, a mounting hole, 110, a regular hexagonal cavity, 12, a handle cover, 111, a groove, 2, a positioning piece, 21, a positioning part, 211, a protrusion, 22, a mounting groove, 221, a clamping groove, 220, a quadrilateral cavity, 23, a positioning block, 231, a positioning semi-cylinder, 232, a cap peak, 233, a weight reduction cavity, 3, a bent pipe, 31, a clamping part, 32, a flange, 4 and a nozzle.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Referring to fig. 1 and 2, the utility model provides a welding gun convenient for replacing a bent pipe, comprising a handle 1, a positioning member 2, a bent pipe 3 and a nozzle 4, wherein the positioning member 2 is installed at one end of the handle 1, one end of the bent pipe 3 is connected with the positioning member 2, the other end of the bent pipe 3 is connected with the nozzle 4, one end of the handle 1 is formed with an installation hole 11 for installing the positioning member 2, a regular hexagonal cavity 110 is formed in the installation hole 11, the handle 1 comprises two handle covers 12 which are mutually clasped, a positioning portion 21 matched with the regular hexagonal cavity 110 is arranged on the positioning member 2, a groove 111 is arranged on the cavity wall of the regular hexagonal cavity 110, a protrusion 211 matched with the groove 111 is arranged on the positioning portion 21, an installation groove 22 for installing the bent pipe 3 is formed inside the positioning member 2, a quadrangular cavity 220 is arranged inside the positioning groove 22, the positioning member 2 comprises two positioning blocks 23 which are mutually clasped, the bent tube 3 is provided with a blocking portion 31 which is matched with the quadrilateral cavity 220.

When the welding gun convenient for replacing the bent pipe is assembled, the positioning block 23 is connected with the handle cover 12 in an alignment mode, the fixing is achieved through the matching relation between the protrusion 211 and the groove 111, then one end of the bent pipe 3 is placed in the installation groove 22, the clamping portion 31 is clamped into the quadrilateral cavity 220 in a matching mode, finally the two handle covers 12 are embraced, and after the two handle covers 12 are embraced, the two positioning blocks 23 are embraced together, so that the bent pipe 3 is clamped in the two positioning blocks 23.

During the use, because regular hexagon cavity 110 and location portion 21 cooperation for setting element 2 can not rotate relative handle 1, simultaneously, protruding 211 cooperation is inserted to recess 111 in, has avoided the condition that setting element 2 and handle 1 break away from. In addition, the quadrilateral cavity 220 is matched with the clamping part 31, so that the condition that the bent pipe 3 rotates relative to the positioning part 2 is avoided, and the connection stability is improved.

When the different return bend 3 of external diameter in user's needs change, need not to change the handle 1 with the return bend 3 adaptation, only need according to the size change setting element 2 of the link of return bend 3 of adaptation can, the die sinking of setting element 2, the process of moulding plastics will be much simpler in handle 1 that the structure is complicated, low in production cost, be favorable to enterprise control manufacturing cost, and easy operation, convenient, improved change efficiency.

In this embodiment, the positioning block 23 includes a positioning semi-cylinder 231 and a brim 232, the brim 232 is convexly disposed at one end of the positioning semi-cylinder 231, the positioning portion 21 is disposed on the positioning semi-cylinder 231, the portion of the mounting hole 11 excluding the regular hexagonal cavity 110 is a circular cavity, the circular cavity is matched with the positioning semi-cylinder 231, and the brim 232 abuts against the end portion of the handle 1 having the mounting hole 11. When the positioning member 2 and the handle 1 are installed in place, the brim 232 abuts against the end of the handle 1, so that the positioning member 2 is prevented from easily shaking relative to the handle 1.

In a specific embodiment, the visor 232 has a truncated cone-shaped structure, and the weight-reducing cavity 233 is formed inside the visor 232. By arranging the weight reduction cavity 233, the weight of the positioning member 2 is reduced while the structural strength is ensured, and the material is saved. Further, the cross section of the weight reduction cavity 233 is triangular, so that the structural strength of the brim 232 is further improved, and the brim 232 is not easily deformed.

Location portion 21 includes six locating plane (the drawing is marked), six locating plane evenly sets up on the periphery wall of setting element 2, and wherein threely locating plane sets up on one of them location semicircle post 231, and is three in addition locating plane sets up on another location semicircle post 231, and lies in the centre on every location semicircle post 231 set up protruding 211 on the locating plane. Further, each positioning semi-cylinder 231 is provided with two protrusions 211, and the two protrusions 211 can prevent the positioning element 2 from inclining relative to the handle 1.

In this embodiment, the two ends of the quadrilateral cavity 220 on the wall of the mounting groove 22 are both provided with a slot 221, the two ends of the elbow 3 on the retaining portion 31 are provided with a protruding flange 32, and the flange 32 and the slot 221 are engaged with each other. When the bent pipe 3 is connected with the positioning member 2 in place, the clamping portion 31 is located in the quadrilateral cavity 220, and the flange 32 is clamped in the clamping groove 221, so that the bent pipe 3 is prevented from moving axially along the positioning member 2, and the bent pipe 3 is prevented from being easily separated from the positioning member 2.

The two handle covers 12 are detachably connected, in this embodiment, the two handle covers 12 are connected by bolts, it is understood that, in other embodiments not shown, the two handle covers 12 are also connected by other detachable methods such as clamping, and the like, and the present invention is not limited thereto.

According to the welding gun with the conveniently replaced bent pipe, when a user needs to replace the bent pipe 3, the user does not need to replace the handle 1 matched with the user, only needs to replace the positioning piece 2, the universality of the handle 1 is improved, the production cost is reduced, the control of the production cost is facilitated, the operation is simple and convenient, the replacement efficiency is improved, and the popularization and the use are convenient.

In light of the foregoing description of preferred embodiments in accordance with the utility model, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. The utility model provides a conveniently change welder of return bend which characterized in that: including handle, setting element and nozzle, the setting element is installed the one end of handle, the one end of return bend with the setting element is connected, the other end of return bend with the nozzle is connected, the one end of handle is formed with and is used for the installation the mounting hole of setting element, regular hexagon cavity has in the mounting hole, the handle includes the handle lid of two mutual cohesion, be equipped with on the setting element with regular hexagon cavity complex location portion, set up flutedly on the wall of regular hexagon cavity, be provided with on location portion with recess complex arch, the inside of setting element is formed with the mounting groove that is used for installing the return bend, quadrilateral cavity has in the mounting groove, the setting element includes two locating pieces of mutual cohesion, be provided with on the return bend with quadrilateral cavity complex screens portion.

2. The welding gun for facilitating the replacement of the elbow according to claim 1, wherein: the locating piece is including location semicolumn and brim of a hat, the brim of a hat is protruding to be established the one end of location semicolumn, location portion sets up on the location semicolumn, except in the mounting hole the part outside the regular hexagon cavity is circular cavity, circular cavity with the location semicolumn cooperatees, the brim of a hat with have on the handle the tip counterbalance of mounting hole is held.

3. The welding gun for facilitating the replacement of the elbow according to claim 2, wherein: the hat brim is of a truncated cone-shaped structure, and a weight reduction cavity is formed in the hat brim.

4. A welding gun for facilitating the replacement of bent pipes according to claim 3, wherein: the cross section of the weight reduction cavity is triangular.

5. The welding gun for facilitating the replacement of the elbow according to claim 2, wherein: the location portion includes six locating surface, six the locating surface evenly sets up on the periphery wall of setting element, wherein three the locating surface sets up one of them on the location semicircle post, it is three in addition the locating surface sets up another on the location semicircle post, and every be located the centre on the location semicircle post set up on the locating surface the arch.

6. The welding gun for facilitating the replacement of the elbow according to claim 1, wherein: the mounting groove is characterized in that clamping grooves are formed in the two ends of the quadrilateral cavity, flanges are arranged at the two ends of the clamping portion in a protruding mode on the bent pipe, and the flanges are clamped with the clamping grooves.

7. The welding gun for facilitating the replacement of the elbow according to claim 1, wherein: the two handle covers are detachably connected.

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