Large-caliber mould pressing elbow

Abstract

The utility model is suitable for the technical field of elbows, and provides a large-caliber mould pressing elbow which comprises an elbow pipe. The flange plate is welded at one end of the bent pipe; the flange conical neck is integrally cast and formed on the outer side wall, close to the inner side of the bent pipe, of the flange plate; the vertical groove and the transverse groove are formed in the inner side wall of the bent pipe, the vertical groove is located on one side of the transverse groove, and the vertical groove is communicated with the transverse groove; the positioning block is welded on the outer side wall of the flange conical neck; the limiting block is arranged on one side of the positioning block; after the positioning block enters the transverse groove, the limiting block moves to one side of the positioning block, the positioning block can be limited, the positioning block cannot leave the transverse groove, then the bent pipe and the flange plate are in a tight butt joint state, welding operation can be directly conducted, auxiliary positioning equipment and positioning operation are not needed, and the welding efficiency is improved. And elbow welding forming operation is simple, convenient and efficient.

Description

Technical Field

[0001] This utility model belongs to the field of elbow technology, and particularly relates to large-diameter molded elbows. Background Technology

[0002] An elbow is a pipe fitting used in piping systems to connect two pipes of the same or different nominal diameters, allowing the pipeline to turn at a certain angle.

[0003] Existing elbows are connected by welding of the bend and the flange. However, the bend and the flange need to be positioned and subjected to a certain amount of pressure during the butt welding process to ensure the stability of the weld joint. The welding of the bend and the flange requires a lot of auxiliary equipment, and the positioning operation increases the complexity of the operation, making it inconvenient to weld the bend and the flange, especially unsuitable for forming large-diameter elbows.

[0004] Therefore, large-diameter molded elbows are proposed. Utility Model Content

[0005] This utility model provides a large-diameter molded elbow, which aims to solve the above-mentioned problems.

[0006] This utility model is implemented as follows: a large-diameter molded elbow includes: a bent pipe; a flange welded to one end of the bent pipe; a flange cone neck integrally cast on the outer wall of the flange near the inner side of the bent pipe; a vertical groove and a horizontal groove formed on the inner wall of the bent pipe, the vertical groove being located on one side of the horizontal groove and the vertical groove and the horizontal groove being connected; a positioning block welded to the outer wall of the flange cone neck; a limiting block provided on one side of the positioning block; a magnet embedded and fixed to one end of the limiting block; and a spring embedded and fixed to the other end of the limiting block; and a guide slope formed on the inner wall of the flange cone neck.

[0007] Preferably, the outer wall of the flange cone neck is precisely fitted to the inner wall of the bend.

[0008] Preferably, the bend is a 45° bend, and the flange and flange cone neck are integrally formed as a WN flange.

[0009] Preferably, the vertical groove and the horizontal groove form a 90-degree angle.

[0010] Preferably, the inner walls of the vertical groove and the horizontal groove are matched and fitted with the outer wall of the positioning block.

[0011] Preferably, the magnet and the positioning block are connected by magnetic adsorption.

[0012] Preferably, a mounting hole is provided on one side of the outer wall of the flange near the outer side of the flange cone neck.

[0013] Compared with the prior art, the embodiments of this application have the following main advantages:

[0014] After the positioning block enters the transverse groove, the limiting block moves to one side of the positioning block, which can limit the position of the positioning block. The positioning block cannot leave the transverse groove, thus ensuring that the bend and flange are in a tight fit and can be directly welded without the need for auxiliary positioning equipment or positioning operations. The elbow welding and forming operation is simple, convenient and efficient, and is suitable for forming large-diameter elbows. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the flange and flange cone neck mating structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the bent pipe structure of this utility model;

[0018] Figure 4 This is a cross-sectional view of the bent pipe of this utility model;

[0019] Figure 5 This is a sectional view of the flange cone neck of this utility model;

[0020] Figure 6 This utility model Figure 2 A in the enlarged view.

[0021] In the diagram: 1. Bend; 2. Flange; 3. Flange conical neck; 4. Vertical groove; 5. Horizontal groove; 6. Positioning block; 7. Limiting block; 8. Magnet; 9. Spring; 10. Guide slope. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This utility model embodiment provides a large-diameter molded elbow, such as Figure 1-6 As shown, the device includes a bend 1, with a flange 2 welded to one end. A flange cone neck 3 is integrally cast on one side of the outer wall of the flange 2 near the inner side of the bend 1. The bend 1 is a 45° bend. The flange 2 and flange cone neck 3 are integrally formed as a WN flange. An installation hole is provided on one side of the outer wall of the flange 2 near the outer side of the flange cone neck 3. A positioning block 6 is welded on one side of the outer wall of the flange cone neck 3. A vertical groove 4 and a horizontal groove 5 are provided on one side of the inner wall of the bend 1 near the outer side of the positioning block 6. The vertical groove 4 is located on one side of the horizontal groove 5 and the vertical groove 4 and the horizontal groove 5 are connected. A limit block 7 is provided on one side of the positioning block 6. A magnet 8 is embedded and fixed on one side of the outer wall of the limit block 7 near the positioning block 6. The magnet 8 and the positioning block 6 are connected by magnetic adsorption. A spring 9 is embedded and fixed on the outer wall of the limit block 7 away from the positioning block 6. A flow guide slope 10 is provided on the inner wall of the flange cone neck 3.

[0025] It should be noted that, since the elbow and flange need to be positioned and subjected to a certain amount of pressure during butt welding to ensure the stability of the weld joint, and because welding elbows and flanges requires a lot of auxiliary equipment and the positioning operation increases the complexity of the operation, it is not convenient for welding elbows and flanges, especially not suitable for forming large-diameter elbows. In this embodiment, after the positioning block 6 enters the transverse groove 5, the limiting block 7 moves to one side of the positioning block 6, which can limit the position of the positioning block 6. The positioning block 6 cannot leave the transverse groove 5, so that the elbow 1 and the flange 2 are in a tight butt joint state and can be directly welded without the need for auxiliary positioning equipment and positioning operation. The elbow welding and forming operation is simple, convenient and efficient, and suitable for forming large-diameter elbows.

[0026] Specifically, in this embodiment, the solution mainly includes a bend 1 and a flange conical neck 3. When welding the bend 1 and the flange 2, the flange conical neck 3 on the flange 2 is inserted into the bend 1. During insertion, the positioning block 6 on the outer wall of the flange conical neck 3 is aligned with the vertical groove 4. The limiting block 7 is attracted to the outer wall of the positioning block 6 using a magnet 8, and the spring 9 is compressed between the limiting block 7 and the flange 2. When the positioning block 6 moves in the vertical groove 4, the limiting block 7 also enters the vertical groove 4. When the positioning block 6 moves to the horizontal groove... When the elbow 1 and flange 2 are in close contact, the flange 2 is rotated and the flange cone neck 3 on the flange 2 rotates synchronously. The positioning block 6 moves into the transverse groove 5. At this time, after the limiting block 7 supports the positioning block 6, under the action of the spring 9, the limiting block 7 is pushed to one side of the transverse groove 5, realizing the limiting position of the positioning block 6. At this time, the elbow 1 and flange 2 are in a close contact state and can be directly welded without the need for auxiliary positioning equipment and positioning operation. The elbow welding operation is simple, convenient and efficient.

[0027] In a further preferred embodiment of the present invention, Figure 1 As shown, the outer wall of the flange cone neck 3 is precisely fitted to the inner wall of the bend 1.

[0028] In this embodiment, the flange conical neck 3 can be inserted into the bend 1 to ensure tightness during the connection, avoiding obstruction of the flange conical neck 3 insertion and preventing gaps from forming.

[0029] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the vertical groove 4 and the horizontal groove 5 form a 90-degree angle, and the inner walls of the vertical groove 4 and the horizontal groove 5 are matched and fitted with the outer wall of the positioning block 6.

[0030] In this embodiment, the positioning block 6 can be inserted into the vertical groove 4 and the horizontal groove 5, thereby enabling the positioning block 6 to slide inside the vertical groove 4 and then enter the interior of the horizontal groove 5.

[0031] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0032] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0033] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A large-diameter molded elbow, characterized in that, include: Bend (1); A flange (2) welded to one end of the bend (1); The flange cone neck (3) is integrally cast on the outer wall of the flange (2) near the inner side of the bend (1); Vertical groove (4) and horizontal groove (5) are formed on the inner wall of the bend (1). The vertical groove (4) is located on one side of the horizontal groove (5), and the vertical groove (4) and the horizontal groove (5) are connected. A positioning block (6) welded to the outer wall of the flange cone neck (3); A limiting block (7) is provided at one side of the positioning block (6); A magnet (8) is embedded and fixed to one side of the limiting block (7); and A spring (9) is embedded and fixed to the other end of the limiting block (7); A flow guide slope (10) is formed on the inner side wall of the flange cone neck (3).

2. The large-diameter molded elbow as described in claim 1, characterized in that, The outer wall of the flange cone neck (3) is precisely fitted to the inner wall of the bend (1).

3. The large-diameter molded elbow as described in claim 1, characterized in that, The bend (1) is a 45° bend, and the flange (2) and flange cone neck (3) are integrally formed as a WN flange.

4. The large-diameter molded elbow as described in claim 1, characterized in that, The vertical groove (4) and the horizontal groove (5) form a 90-degree angle.

5. The large-diameter molded elbow as described in claim 1, characterized in that, The inner walls of the vertical groove (4) and the horizontal groove (5) are matched and fitted with the outer wall of the positioning block (6).

6. The large-diameter molded elbow as described in claim 1, characterized in that, The magnet (8) and the positioning block (6) are connected by magnetic adsorption.

7. The large-diameter molded elbow as described in claim 1, characterized in that, An installation hole is provided on one side of the outer wall of the flange (2) near the outer side of the flange cone neck (3).

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