Stainless steel round tube tube expander

Abstract

The utility model discloses a kind of stainless steel round pipe pair of pipe, including connecting plate, left and right symmetrical arc slide rail of being provided with each other parallel in vertical plane is set on connecting plate, supporting positioning roller of being supported in the lower side of arc slide rail is provided on connecting plate and guiding positioning wheel of being connected in the slide groove of the two sides of arc slide rail rolls;The inside of arc slide rail is fixed with the fixed frame of front opening, the bottom of fixed frame inner wall is fixed with V type fixed card, V type movable card is set at the position of the inside of fixed frame above V type fixed card, two groups of V type fixed card and V type movable card are respectively clamped in the surface of adjacent two round pipes close to opposite end;Fixed frame is vertically screw-connected with clamping bolt.The utility model under the action of arc slide rail, supporting positioning roller and guiding positioning wheel, connecting plate and round pipe can relatively rotate, realize to give way effect, to be able to expose the whole circle of joint, it is convenient to weld, bring convenience for use.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding auxiliary equipment technology, specifically a stainless steel round pipe fitting tool. Background Technology

[0002] During the processing and installation of stainless steel round pipes, it is often necessary to weld two stainless steel round pipes together to achieve a connection and fixation, while also extending the pipeline. When welding stainless steel round pipes, it is essential to ensure that the ends of the two pipes are aligned and their axes match to achieve a stable and secure weld. Existing pipe fitting technology includes pipe clamps and a connecting frame for mounting the clamps. After the pipe clamps hold the round pipe, both the clamps and the connecting frame are fixed in position and angle to the pipe. Since round pipe welding requires welding a complete circumference of the joint, the fixed-position and angled connecting frame obstructs the welding torch during this process. The welding torch angle needs to be adjusted to find the optimal welding position, which is often small. This results in fewer suitable welding positions obstructed by the connecting frame, causing inconvenience, increasing operational complexity, and consuming more time. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a stainless steel round pipe fitting tool to solve the problem of obstruction during welding with a welding gun when clamping and fixing round pipes.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A stainless steel round tube fitting includes a connecting plate, on which parallel arc-shaped slide rails are arranged symmetrically on the left and right sides along the vertical plane. The connecting plate is provided with a support positioning roller supported below the arc-shaped slide rails and a guide positioning wheel that is tumblingly connected in the slide grooves on both sides of the arc-shaped slide rails.

[0006] The inner side of the arc-shaped slide rail is fixed with a front-opening fixing frame. The bottom of the inner wall of the fixing frame is fixed with a V-shaped fixing clip. A V-shaped movable clip is provided inside the fixing frame above the V-shaped fixing clip. The two sets of V-shaped fixing clips and V-shaped movable clips are respectively engaged with the surfaces of two adjacent round tubes near their opposite ends.

[0007] The fixing frame is vertically threaded with a clamping bolt. The lower end of the clamping bolt is rotatably connected to the top of the V-shaped movable clip, and the upper end of the clamping bolt is fixed with a turning handle.

[0008] Preferably, the bottom front and back of the arc-shaped slide rail are provided with support positioning rollers and guide positioning wheels. The support positioning rollers are symmetrically arranged below the arc-shaped slide rail, and the guide positioning wheels are symmetrically arranged inside the slide groove. The support positioning rollers and guide positioning wheels are respectively mounted on the connecting plate by support frames.

[0009] Preferably, a flip handle is fixed to the lower front of the V-shaped fixing card.

[0010] Preferably, the two sets of clamping bolts and the turning handle are arranged between two arc-shaped slide rails, and the distance between the arc-shaped slide rails and the clamping bolts is greater than the length of the turning handle.

[0011] Preferably, the clamping bolt is vertically positioned on the vertical axis of the V-shaped movable clip.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This utility model features two sets of V-shaped fixing clips and V-shaped movable clips connected to the same connecting plate via two sets of arc-shaped slide rails, a fixing frame, a support positioning roller, and a guide positioning wheel. This ensures that the position and angle between the two sets of V-shaped fixing clips and V-shaped movable clips are fixed, jointly clamping and fixing two round tubes and ensuring a neat joint. Under the action of the arc-shaped slide rails, support positioning rollers, and guide positioning wheels, the connecting plate and the round tubes can rotate relative to each other, achieving a clearance effect. This exposes the entire joint, facilitating welding and providing convenience for use. It solves the problem of obstruction to welding with a welding gun when clamping and fixing round tubes with existing tube clamping devices. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is the left view of the present invention.

[0016] In the diagram: 1. Connecting plate; 2. Arc-shaped slide rail; 201. Slide groove; 3. Support positioning roller; 4. Guide positioning wheel; 5. Fixing frame; 6. V-shaped fixing clip; 7. V-shaped movable clip; 8. Round tube; 9. Clamping bolt; 10. Turning handle; 11. Support frame; 12. Flip handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this utility model provides a technical solution: a stainless steel round tube fitting, including a connecting plate 1, on which arc-shaped slide rails 2 are symmetrically arranged in the vertical plane and are parallel to each other. The connecting plate 1 is provided with a support positioning roller 3 supported below the arc-shaped slide rails 2 and a guide positioning wheel 4 rollingly connected in the slide grooves 201 on both sides of the arc-shaped slide rails 2. The support positioning roller 3 and the guide positioning wheel 4 are provided on the bottom front and back of the arc-shaped slide rails 2. The support positioning roller 3 is symmetrically arranged below the arc-shaped slide rails 2, and the guide positioning wheel 4 is symmetrically arranged in the front and back and left and right sides inside the slide grooves 201. The support positioning roller 3 and the guide positioning wheel 4 are respectively mounted on the connecting plate 1 through a support frame 11.

[0019] The inner side of the arc-shaped slide rail 2 is fixed with a front-opening fixing bracket 5. The bottom of the inner wall of the fixing bracket 5 is fixed with a V-shaped fixing clip 6. The front of the V-shaped fixing clip 6 is fixed with a flip handle 12. The inside of the fixing bracket 5 is provided with a V-shaped movable clip 7 above the V-shaped fixing clip 6. The two sets of V-shaped fixing clips 6 and V-shaped movable clips 7 are respectively engaged with the surfaces of two adjacent round tubes 8 near the opposite ends.

[0020] The fixed frame 5 is vertically threaded with a clamping bolt 9. The lower end of the clamping bolt 9 is rotatably connected to the top of the V-shaped movable clip 7. The clamping bolt 9 is vertically set on the vertical axis of the V-shaped movable clip 7, and the upper end of the clamping bolt 9 is fixed with a turning handle 10. The two sets of clamping bolts 9 and turning handles 10 are set between two arc-shaped slide rails 2. The distance between the arc-shaped slide rails 2 and the clamping bolts 9 is greater than the length of the turning handle 10.

[0021] Working principle:

[0022] After aligning the ends of the two round tubes, place two V-shaped fixing clips under the two round tubes respectively. Turn the handle to move the V-shaped movable clips down and clamp them on the top of the round tubes through the clamping bolts. Together with the V-shaped fixing clips, they clamp and position the two round tubes. If the two round tubes are originally fixed and cannot rotate, the connecting plate can be rotated along the arc-shaped slide rail during the welding process to change the relative angle position with the round tubes and avoid obstructing the welding torch from completing the welding. If both round tubes can move freely, the connecting plate can act as a base and be placed on the table. During the welding process, the arc-shaped slide rail, fixing frame, V-shaped fixing clips, V-shaped movable clips, and round tubes roll as a whole on the support positioning roller and guide positioning wheel under the guidance of the arc-shaped slide rail, allowing the round tubes to rotate relative to the connecting plate, achieving a clearance effect, thereby exposing the entire circumference of the joint for easy welding.

[0023] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stainless steel round tube connector, characterized in that: Includes a connecting plate (1), on which parallel arc-shaped slide rails (2) are arranged symmetrically on the left and right sides along the vertical plane. The connecting plate (1) is provided with a support positioning roller (3) supported below the arc-shaped slide rails (2) and a guide positioning wheel (4) rollingly connected in the slide grooves (201) on both sides of the arc-shaped slide rails (2). The inner side of the arc-shaped slide rail (2) is fixed with a front-opening fixing frame (5). The bottom of the inner wall of the fixing frame (5) is fixed with a V-shaped fixing clip (6). A V-shaped movable clip (7) is provided inside the fixing frame (5) above the V-shaped fixing clip (6). The two sets of V-shaped fixing clips (6) and V-shaped movable clips (7) are respectively snapped onto the surfaces of two adjacent round tubes (8) near their opposite ends. The fixing frame (5) is vertically threaded with a clamping bolt (9), the lower end of the clamping bolt (9) is rotatably connected to the top of the V-shaped movable clip (7), and the upper end of the clamping bolt (9) is fixed with a turning handle (10).

2. The stainless steel round tube fitting according to claim 1, characterized in that: The bottom front and back of the arc-shaped slide rail (2) are provided with support positioning rollers (3) and guide positioning wheels (4). The support positioning rollers (3) are symmetrically arranged below the arc-shaped slide rail (2). The guide positioning wheels (4) are symmetrically arranged inside the slide groove (201) in front and back and left and right. The support positioning rollers (3) and guide positioning wheels (4) are respectively mounted on the connecting plate (1) through the support frame (11).

3. A stainless steel round tube fitting according to claim 1, characterized in that: A flip handle (12) is fixed to the lower front of the V-shaped fixing clip (6).

4. A stainless steel round tube fitting according to claim 1, characterized in that: The two sets of clamping bolts (9) and turning handles (10) are arranged between two arc-shaped slide rails (2), and the distance between the arc-shaped slide rails (2) and the clamping bolts (9) is greater than the length of the turning handles (10).

5. A stainless steel round tube fitting according to claim 1, characterized in that: The clamping bolt (9) is vertically set on the vertical axis of the V-shaped movable clip (7).

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