Cold-drawn precision welding steel pipe convenient to weld

Abstract

The utility model relates to the technical field of steel pipes, in particular to a cold-drawn precision welding steel pipe convenient to weld, which comprises a steel pipe body and a connecting piece, the connecting piece comprises a base, positive and negative tooth screw rods, a sliding plate, a handle, a supporting block, a connecting rod and a supporting assembly, sliding grooves are arranged on the left side and the right side of the base, the positive and negative tooth screw rods are arranged in the sliding grooves, and the sliding plate is arranged on the left side and the right side of the base. According to the cold-drawn precision welding steel pipe convenient to weld, the steel pipe bodies are provided with connecting pieces, the connecting pieces can be connected to the steel pipe bodies in a sliding mode, when the two steel pipe bodies need to be in butt joint, the connecting pieces can be connected to the steel pipe bodies in a sliding mode, and the connecting pieces can be connected to the steel pipe bodies in a sliding mode. The handles drive the corresponding positive and negative tooth screws to rotate, so that the connecting rods between the two sets of sliding plates make contact with the steel pipe body through the supporting assemblies, the stability of butt joint supporting is guaranteed, and follow-up welding operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a cold-drawn precision welded steel pipe which is convenient for welding. Background Art

[0002] Cold drawn precision steel tube is a kind of high precision steel tube material after cold drawing or hot rolling. Due to the advantages of no oxide layer on the inner and outer walls of precision steel tube, no leakage under high pressure, high precision, high finish, no deformation after cold bending, no cracks after expansion and flattening, it is widely used in the fields of automobile, boiler and machinery.

[0003] When existing cold-drawn precision steel pipes are welded and assembled, especially when one group of steel pipes is assembled and fixed and the other group of steel pipes needs to be erected and welded, there is no auxiliary positioning device on the steel pipes. Manual support and positioning are often used, which is greatly affected by external environmental factors and is prone to unstable docking, resulting in incomplete sealing of the welding port, making it inconvenient to use. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a cold-drawn precision welded steel pipe which is convenient for welding.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cold-drawn precision welded steel pipe which is convenient for welding, comprising a steel pipe body and a connecting piece, wherein the connecting piece comprises a base, a positive and negative thread screw, a slide plate, a handle, a support block, a connecting rod and a support assembly, wherein the base is provided with slide grooves on the left and right sides, the positive and negative thread screws are provided in the slide grooves, one end of the positive and negative thread screws passes through the base and is connected to the handle, and each group of the slide grooves is provided with two groups of symmetrically arranged slide plates, the slide plates are in an inverted L shape, the bottom of the slide plates extends into the slide groove and is threadedly connected with the positive and negative thread screws, a connecting rod is provided below the top wall of the slide plate, the support block is provided at the center above the slide groove, and support assemblies supporting the steel pipe body are provided above the support block and below the connecting rod.

[0008] In order to ensure its stable contact with the steel pipe body, the utility model is improved in that the support assembly includes a ball seat and a ball body, the support block and the connecting rod are both provided with a ball seat, and the ball body is rotatably provided on the ball seat.

[0009] Preferably, the slide plate is in an inverted L-shape with an arc-shaped corner, and the upper part of the slide plate is arranged at an angle.

[0010] In order to facilitate driving the handle, the utility model is improved in that friction patterns are further arranged on the handle.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model provides a cold-drawn precision welded steel pipe that is convenient for welding, and has the following beneficial effects:

[0013] The cold-drawn precision welded steel pipe which is convenient for welding is provided with a connecting piece on the steel pipe body, and the connecting piece can be slidably connected on the steel pipe body. When two groups of steel pipe bodies need to be butt-jointed, the corresponding positive and negative threaded screws are driven to rotate by the handle, so that the connecting rod between the two groups of slides contacts the steel pipe body through the supporting assembly, thereby ensuring the stability of the butt-jointing support and facilitating subsequent welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a bottom view schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a partial schematic diagram of the structure of the utility model;

[0017] Figure 4 The utility model structure Figure 3 A partial enlarged schematic diagram is shown in the figure.

[0018] In the figure: 1. Base; 2. Positive and negative thread screws; 3. Slide plate; 4. Handle; 5. Support block; 6. Connecting rod; 7. Steel pipe body; 8. Ball seat; 9. Ball body; 10. Friction pattern. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4, a cold-drawn precision welded steel pipe that is convenient for welding, includes a steel pipe body 7 and a connecting piece, the connecting piece includes a base 1, a positive and negative thread screw 2, a slide plate 3, a handle 4, a support block 5, a connecting rod 6 and a supporting assembly, the base 1 is provided with slide grooves on the left and right sides, the positive and negative thread screws 2 are provided in the slide grooves, one end of the positive and negative thread screws 2 passes through the base 1 and is connected to the handle 4, each group of the slide grooves is provided with two groups of symmetrically arranged slide plates 3, the slide plate 3 is in an inverted L shape, the bottom of the slide plate 3 extends into the slide groove and is threadedly connected with the positive and negative thread screws 2, a connecting rod 6 is provided below the top wall of the slide plate 3, the support block 5 is provided at the center above the slide groove, and support assemblies supporting the steel pipe body 7 are provided above the support block 5 and below the connecting rod 6.

[0021] During actual use, according to needs, stepped rings can be provided at both ends of the steel pipe body 7 to limit the connector connected to the steel pipe body 7 at one end. When another group of steel pipes are docked, the spacing between the two groups of slide plates 3 at the free ends of the connector is larger. The corresponding handles 4 drive the positive and negative thread screws 2 to rotate, and the two groups of slide plates 3 drive the connecting rod 6 to move towards each other. The steel pipe body 7 contacts the support components on the support tube and the connecting rod 6 to ensure the stability of its assembly. The handle 4 is also provided with friction patterns 10, which facilitate driving the handle 4.

[0022] During actual use, the support assembly includes a ball seat 8 and a ball body 9. The ball seat 8 is provided on the support block 5 and the connecting rod 6. The ball body 9 is rotatably provided on the ball seat 8. The ball seat 8 is provided on the support block 5 and the connecting rod 6. The ball body 9 is rotatably connected to the ball seat 8, and the ball body 9 is slidably connected to the steel pipe body 7, which is easy to use.

[0023] In actual use, the slide plate 3 is in an inverted L-shape with an arc-shaped corner, and the upper part of the slide plate 3 is arranged at an angle to ensure that the connecting piece is stably connected to the corresponding two groups of steel pipes.

[0024] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0026] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold-drawn precision welded steel pipe that is easy to weld, comprising a steel pipe body (7) and a connecting piece, characterized in that: The connecting member comprises a base (1), a positive and negative threaded screw (2), a slide plate (3), a handle (4), a support block (5), a connecting rod (6) and a support assembly. The base (1) is provided with slide grooves on the left and right sides. The positive and negative threaded screw (2) is provided in the slide groove. One end of the positive and negative threaded screw (2) passes through the base (1) and is connected to the handle (4). Two groups of symmetrically arranged slide plates (3) are provided on each group of the slide grooves. The slide plates (3) are in an inverted L shape. The lower part of the slide plate (3) extends into the slide groove and is threadedly connected to the positive and negative threaded screw (2). A connecting rod (6) is provided below the top wall of the slide plate (3). The support block (5) is provided at the center above the slide groove. Support assemblies for supporting the steel pipe body (7) are provided above the support block (5) and below the connecting rod (6).

2. The cold-drawn precision welded steel pipe convenient for welding according to claim 1, characterized in that: The support assembly comprises a ball seat (8) and a ball body (9); the ball seat (8) is arranged on the support block (5) and the connecting rod (6); and the ball body (9) is rotatably arranged on the ball seat (8).

3. The cold-drawn precision welded steel pipe convenient for welding according to claim 2, characterized in that: The slide plate (3) is in an inverted L-shape with an arc-shaped corner, and the upper part of the slide plate (3) is arranged in an inclined manner.

4. The cold-drawn precision welded steel pipe convenient for welding according to claim 3, characterized in that: The handle (4) is also provided with friction patterns (10).

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