Curved surface gauge for manufacturing welded tee joint

Abstract

The utility model relates to a curved surface gauge for manufacturing a welded tee joint. The line drawing device comprises a line drawing leg, a sliding handle and a supporting leg, the lower end of the line drawing leg is a line drawing end, a sliding handle is arranged at the upper end of the line drawing leg in a penetrating mode, and a locking element for locking the relative positions of the sliding handle and the line drawing leg is arranged at the upper end of the line drawing leg. One end of the sliding handle is vertically connected with the upper end of the supporting leg, and the supporting leg is parallel to the line drawing leg; the lower end of the supporting leg is fixedly connected with the upper end of a guide sleeve, an elastic element is arranged in the guide sleeve, the upper end of the elastic element is connected with the lower end of the supporting leg or the upper end of the guide sleeve, and the lower end of the elastic element is connected with a movable support; the supporting leg, the elastic element and the movable support are in a straight line, and at least the upper section of the movable support is limited in the guide sleeve; one side of the movable support is fixedly connected with a guiding rule, and the lower end face of the guiding rule and a supporting point at the lower end of the movable support are located on the same plane. The purpose of pipeline machining without lofting can be achieved, and when the three-way valve is used for welded tee joint manufacturing, the manufacturing process is simplified, the manufacturing difficulty is reduced, and the manufacturing working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a curved surface gauge for drawing lines, in particular to a curved surface gauge used for manufacturing tees through welding. Background Art

[0002] Tees are widely used. On-site tees can be fabricated using either welded or drawn methods. Welded tees are further categorized by their form, including straight, oblique, downstream, and clevis tees. Before welding a tee, it's usually necessary to calculate the stock requirements for the main and branch pipes. Based on these calculations, a setout curve is created for the main and branch pipes before cutting and welding. The traditional method for calculating the stock requirements for pipe tees is the graphical method. This involves dividing the pipe into equal sections on a three-dimensional drawing and then measuring the lengths at each section to create the setout curve. Traditional pipe tee fabrication is a tedious process, requiring experienced technicians to complete the setout and fabrication. Our pipeline construction projects also involve a large number of tees, such as anti-corrosion counterweight repair and renovation projects, which require tees of various sizes. Laying out a single tee typically takes about an hour and requires raw felt, which is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of the utility model is to provide a curved surface gauge for manufacturing welded tees, which changes the above-mentioned traditional method of manufacturing tees to achieve the purpose of pipe processing without lofting. The use of the curved surface gauge of the utility model in the manufacturing of welded tees simplifies the manufacturing process, reduces the manufacturing difficulty, and improves the manufacturing work efficiency.

[0004] The technical solution of the utility model is as follows:

[0005] A curved surface gauge for manufacturing tees, characterized in that it comprises a marking leg, a sliding handle, and a supporting leg; wherein:

[0006] The lower end of the marking leg is a marking end, and a sliding handle is vertically passed through the upper end of the marking leg. The upper end of the marking leg also has a locking element for locking the relative position of the sliding handle and the marking leg;

[0007] One end of the sliding handle is further vertically connected to the upper end of the supporting leg, and the supporting leg is arranged parallel to the line drawing leg;

[0008] The lower end of the support leg is fixedly connected to the upper end of a guide sleeve. An elastic element is disposed in the guide sleeve. The upper end of the elastic element is connected to the lower end of the support leg or the upper end of the guide sleeve. The lower end of the elastic element is connected to a movable support. The support leg, the elastic element, and the movable support are arranged in a straight line, and at least the upper section of the movable support is located within the guide sleeve.

[0009] One side of the movable support is fixedly connected to a ruler, and the lower end surface of the ruler and the supporting point of the lower end of the movable support are in the same plane.

[0010] The curved surface gauge for manufacturing tees is characterized in that the locking element is a locking screw and the elastic element is a spring.

[0011] The curved surface gauge for welding tees is characterized in that the inner diameter of the lower end and the lower end outlet of the guide sleeve is smaller than the inner diameter of the guide sleeve body, the upper end of the movable support is a movable limiting end, and the outer diameter of the movable limiting end is larger than the inner diameter of the lower end and the lower end outlet of the guide sleeve and smaller than the inner diameter of the guide sleeve body.

[0012] The curved surface gauge used for manufacturing tees through welding is characterized in that the drawing end of the drawing leg and the supporting point of the lower end of the movable support are both pointed.

[0013] The advantages of this utility model are as follows:

[0014] When the curved surface gauge of the utility model is used, the traditional method of making a tee is changed to achieve the purpose of processing the pipeline without lofting. The use of the curved surface gauge of the utility model in the manufacture of welded tees simplifies the manufacturing process, reduces the manufacturing difficulty, and improves the manufacturing work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model in use;

[0016] Figure 2 yes Figure 1 AA section view in. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0018] See also Figure 1 、 2 The utility model discloses a curved surface gauge for manufacturing welded tees, and is particularly suitable for drawing lines on the main pipe A for connecting the branch pipe B during the manufacturing process of the straight tee. As shown in the figure: it includes a drawing leg 8, a sliding handle 2, and a support leg 3; wherein:

[0019] The lower end of the marking leg 8 is a marking end, and the upper end of the marking leg 8 is vertically penetrated by a sliding handle 2. The upper end of the marking leg 8 also has a locking element 1 for locking the relative position of the sliding handle 2 and the marking leg 8.

[0020] One end of the sliding handle 2 is further vertically connected to the upper end of the support leg 3, and the support leg 3 is arranged parallel to the line drawing leg 8;

[0021] The lower end of the support leg 3 is fixedly connected to the upper end of a guide sleeve 5. An elastic element 4 is disposed within the guide sleeve 5. The upper end of the elastic element 4 is connected to the lower end of the support leg 3 or the upper end of the guide sleeve 5. The lower end of the elastic element 4 is connected to a movable support 6. The support leg 3, the elastic element 4, and the movable support 6 are arranged in a straight line, and at least the upper section of the movable support 6 is confined within the guide sleeve 5.

[0022] One side of the movable support 6 is fixedly connected to a ruler 7 , and the lower end surface of the ruler 7 and the supporting point of the lower end of the movable support 6 are in the same plane.

[0023] When the present invention is used, after marking the mother pipe A (i.e., setting the center point position of the branch pipe B to be set on the mother pipe A), the support point of the lower end of the movable support 6 of the present invention curved surface gauge is positioned at this point (at this time, the lower end surface of the ruler 7 is also against the mother pipe A for auxiliary positioning); then the locking element 1 is loosened, and the support leg 3 is slid horizontally along the sliding handle 2 until the distance between the support point at the lower end of the movable support 6 and the drawing end of the lower end of the marking leg 8 is adjusted to the distance of the radius R of the tee branch pipe B, and the relative position of the sliding handle 2 and the drawing leg 8 is locked by the locking element 1 (at this time, the support leg 3 and the drawing leg 8 are parallel to each other), and it is ensured that the support point at the lower end of the movable support 6 and the drawing end of the lower end of the drawing leg 8 are both supported on the mother pipe; continue to position the support point of the lower end of the movable support 6 at this point, make the drawing end of the lower end of the drawing leg 8 contact the mother pipe A and rotate it one circle, so that the position of the intersection line can be drawn on the mother pipe A, and the drawing work is completed.

[0024] In the present invention, since the support leg 3, elastic element 4 and movable support 6 are arranged in a straight line and have a self-adjusting length function due to the presence of the elastic element 4 after the three are connected, it can be ensured that the drawing end at the lower end of the drawing leg 8 can always contact the mother tube A and draw lines during rotation.

[0025] In the present invention, the guide sleeve 5 can not only protect the elastic element, but also limit the length self-adjustment to always occur in a straight line.

[0026] In the present invention, the locking element 1 is a locking screw, and the elastic element 4 is a spring.

[0027] In the present invention, the inner diameter of the lower end and the lower outlet of the guide sleeve 5 is smaller than the inner diameter of the main body of the guide sleeve 5. The upper end of the movable support 6 serves as a movable limiting end, and the outer diameter of the movable limiting end is larger than the inner diameter of the lower end and the lower outlet of the guide sleeve 5 and smaller than the inner diameter of the main body of the guide sleeve 5. In this way, the elastic element 4 can be always ensured to be located within the guide sleeve 5.

[0028] The drawing line end of the drawing line leg 8 and the supporting point of the lower end of the movable support 6 are both pointed, so that the interval between the supporting point of the lower end of the movable support 6 and the drawing line end of the lower end of the drawing line leg 8 is the radius R, and the precision of drawing line is improved.

[0029] The above merely describes preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model. Any equivalent changes and modifications made within the scope of the present utility model should be within the technical scope of the present utility model.

Claims

1. A curved surface gauge for manufacturing welded tees, characterized by: It comprises a line drawing leg (8), a sliding handle (2), and a supporting leg (3); wherein: The lower end of the line drawing leg (8) is a line drawing end, and the upper end of the line drawing leg (8) is vertically penetrated by a sliding handle (2). The upper end of the line drawing leg (8) also has a locking element (1) for locking the relative position of the sliding handle (2) and the line drawing leg (8); One end of the sliding handle (2) is further vertically connected to the upper end of the support leg (3), and the support leg (3) is arranged parallel to the line drawing leg (8); The lower end of the support leg (3) is fixedly connected to the upper end of a guide sleeve (5), an elastic element (4) is provided in the guide sleeve (5), the upper end of the elastic element (4) is connected to the lower end of the support leg (3) or the upper end of the guide sleeve (5), and the lower end of the elastic element (4) is connected to a movable support (6); the support leg (3), the elastic element (4), and the movable support (6) are arranged in a straight line, and at least the upper section of the movable support (6) is limited in the guide sleeve (5); One side of the movable support (6) is fixedly connected to a ruler (7), and the lower end surface of the ruler (7) and the supporting point at the lower end of the movable support (6) are in the same plane.

2. The curved surface gauge for manufacturing a welded tee according to claim 1, characterized in that: The locking element (1) is a locking screw, and the elastic element (4) is a spring.

3. The curved surface gauge for manufacturing a welded tee according to claim 1, characterized in that: The inner diameters of the lower end and the lower end outlet of the guide sleeve (5) are smaller than the inner diameter of the guide sleeve (5) body. The upper end of the movable support (6) is a movable limiting end. The outer diameter of the movable limiting end is larger than the inner diameters of the lower end and the lower end outlet of the guide sleeve (5) and smaller than the inner diameter of the guide sleeve (5) body.

4. The curved surface gauge for manufacturing a welded tee according to claim 1, 2 or 3, characterized in that: The line drawing end of the line drawing leg (8) and the support point at the lower end of the movable support (6) are both pointed.

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