Limiting device for neck socket welding flange

Abstract

The utility model relates to the technical field of flange installation auxiliary equipment, in particular to a neck socket welding flange limiting device which comprises a base, a telescopic assembly is horizontally arranged in the center of the top of the base, the outer side of the telescopic assembly is detachably connected with a plurality of centrosymmetric limiting rods, the limiting rods are vertically arranged, and the limiting rods are detachably connected with the telescopic assembly. The telescopic assembly can drive the limiting rod to slide synchronously, the upper end of the limiting rod is rotationally connected with a limiting piece, and the height of the limiting piece is adjustable. The limiting rods can be controlled to slide synchronously by arranging the telescopic assemblies, and the device can adapt to neck socket welding flanges with different inner diameters; the limiting piece can be erected at the top end of the flange ring step, the distance between the pipeline and the flange ring step can be limited, it is guaranteed that the insertion depth of the pipeline is consistent, and the connecting effect between the pipeline and the neck socket welding flange is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of flange installation auxiliary equipment, and in particular to a necked socket welding flange limiting device. Background Technology

[0002] The main function of flanges is to connect pipes or equipment, ensuring the sealing and stability of the system. With functions of connection, sealing, support, and vibration isolation, flanges play an irreplaceable role in modern industry as an important mechanical connector.

[0003] A socket weld flange is a type of flange in which the end of a pipe is inserted into the flange ring step, and welding is performed on both the pipe end and the outside. This design gives the socket weld flange good rigidity, minimal welding deformation, and high sealing performance, making it suitable for applications with pressure ranges from 1.0 to 10.0 MPa. Due to its excellent performance characteristics and wide range of applications, the socket weld flange plays an indispensable role in modern industry.

[0004] According to the standard, when a pipe is inserted into a flange ring step, there must be a certain gap between the pipe and the bottom of the flange ring step. This is usually done manually, which makes it impossible to control the depth and distance, resulting in inconsistent insertion depths at the pipe ends. This leads to an unstable connection between the flange and the pipe, non-perpendicularity between the centerline of the pipe and the flange, and misalignment of the flange holes, causing leakage of the medium inside the pipe and ultimately leading to a safety accident.

[0005] Therefore, a necked socket welding flange limiting device is needed to limit the position of the inserted pipe. Utility Model Content

[0006] The purpose of this utility model is to provide a limiting device for a necked socket weld flange, which can limit the depth of the pipe inserted into the necked socket weld flange to ensure that the pipe axis is perpendicular to the centerline of the flange.

[0007] This utility model provides a limiting device for a necked socket welding flange, including a base. A telescopic component is horizontally provided at the top center of the base. The telescopic component is detachably connected to a plurality of centrally symmetrical limiting rods on its outer side. The limiting rods are vertically arranged. The telescopic component can drive the limiting rods to slide synchronously. The upper end of the limiting rod is rotatably connected to a limiting plate. The height of the limiting plate is adjustable.

[0008] Preferably, the telescopic assembly includes a turntable and a telescopic rod. The turntable has multiple arc-shaped guide grooves, one end of which is close to the center of the turntable and the other end is away from the center of the turntable. One end of the telescopic rod is slidably connected to the guide groove, and the other end is detachably connected to the limiting rod. A limiting component is provided on the top of the base, which is used to limit the telescopic rod from sliding radially along the turntable.

[0009] Preferably, the limiting component includes a plurality of sliding grooves arranged radially along the turntable, and the bottom of the telescopic rod is provided with a slider, which can slide along the sliding grooves.

[0010] Preferably, the end of the guide groove closest to the center of the turntable is located on the same circumference, and the end furthest from the center of the turntable is located on the same circumference.

[0011] Preferably, a driven rod is vertically provided at the top of the telescopic rods at one end close to each other. The driven rod is inserted into the guide groove and can slide along the guide groove.

[0012] Preferably, a drive motor is provided on the base, and the output shaft of the drive motor is connected to the center of the turntable.

[0013] Preferably, the end of the telescopic rod is bolted to the limiting rod.

[0014] Preferably, one end of the limiting piece is rotatably connected to the C-shaped clip, and both ends of the clip are rotatably connected to the side wall of the limiting rod.

[0015] Preferably, the limiting rod is provided with slide rails on both sides corresponding to the locking member, and the locking member can slide along the slide rails.

[0016] Preferably, both the base and the limiting rod are made of metal.

[0017] Beneficial effects:

[0018] This invention features a base that supports the flange body, ensuring the upper surface of the base and the end face of the flange body are on the same plane, thus guaranteeing the parallelism between the axis of the limiting rod and the axis of the flange body. The telescopic assembly controls the synchronous sliding of the limiting rod, accommodating flanges with necked socket welding of different inner diameters. The limiting plate can be mounted on the top of the flange ring step, limiting the distance between the pipe and the flange ring step, ensuring consistent pipe insertion depth and guaranteeing the connection effect between the pipe and the necked socket welding flange. The adjustable height of the limiting plate allows for better adaptation to different models of necked socket welding flanges. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a top view of the overall structure of this utility model;

[0021] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 3 This is a side sectional view of the present invention;

[0023] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Base, 2-Turntable, 3-Guide groove, 4-Telescopic rod, 5-Slide groove, 6-Driven rod, 7-Limiting piece, 8-Clip, 9-Limiting rod, 10-Slide rail, 11-Bolt, 12-Drive motor, 13-Slider. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] like Figure 1-4 As shown, a necked socket welding flange limiting device includes a base 1. A telescopic component is horizontally positioned at the top center of the base 1. The telescopic component is detachably connected to the bottom ends of several centrally symmetrical limiting rods 9. The limiting rods 9 are vertically positioned, and the telescopic component can drive the limiting rods 9 to slide synchronously. Preferably, four limiting rods 9 are provided to facilitate uniform force distribution, stabilize the distance between the pipe end face and the flange ring step, and ensure that the pipe is perpendicular to the flange centerline.

[0031] The telescopic assembly includes a turntable 2 and a telescopic rod 4. The turntable 2 has multiple arc-shaped guide grooves 3, one end of which is close to the center of the turntable 2, and the other end is away from the center. The ends of the guide grooves 3 near the center of the turntable 2 are on the same circumference, and the ends away from the center are also on the same circumference. The telescopic rod 4 is horizontally positioned, and the turntable 2 is located above it. A driven rod 6 is vertically positioned at the top of the ends of the telescopic rods 4 that are close to each other. The driven rod 6 is inserted into the guide groove 3 and can slide along the guide groove 3. The other end of each telescopic rod 4 is detachably connected to a limiting rod 9, preferably using bolts 11. A limiting assembly is provided at the top of the base 1. The limiting assembly includes several sliding grooves 5 arranged radially along the turntable 2, and a slider 13 is provided at the bottom of the telescopic rod 4. The slider 13 can slide along the sliding grooves 5. The limiting assembly is used to limit the sliding of the telescopic rod 4 radially along the turntable 2, thereby causing the limiting rod 9 to slide.

[0032] A drive motor 12 is mounted on the base 1, located at one end of several sliding grooves 5. The output shaft of the drive motor 12 is connected to the center of the turntable 2. The drive motor 12 drives the turntable 2 to rotate, causing the driven rod 6 to slide along the guide groove 3, thereby causing the telescopic rod 4 to extend and retract radially along the turntable 2, adjusting the distance between the limiting rods 9. The telescopic rod 4 remains on the top surface of the base 1 throughout the extension and retraction process.

[0033] The upper end of the limiting rod 9 is rotatably connected to the limiting piece 7, the height of which is adjustable. One end of the limiting piece 7 is rotatably connected to the C-type clamp 8, and both ends of the clamp 8 are rotatably connected to the side walls of the limiting rod 9. Slide rails 10 are provided on both sides of the limiting rod 9 corresponding to the clamp 8, allowing the clamp 8 to slide along the slide rails 10, thereby adjusting the height of the limiting piece 7 to accommodate different types of necked socket weld flanges. The distance between the two ends of the clamp 8 is slightly less than the distance between the bottom ends of the two slide rails 10, increasing the friction between the clamp 8 and the slide rails 10. Preferably, the side of the limiting piece 7 away from the limiting rod 9 is arc-shaped, facilitating its placement on the flange ring step to limit the distance between the flange ring step and the pipe. The width of the limiting piece 7 is preferably 10mm. In actual use, limiting pieces 7 of different thicknesses can be replaced as needed.

[0034] Both the base 1 and the limiting rod 9 are made of metal.

[0035] Work process:

[0036] A necked socket flange includes a flange body with a neck bearing at the top. The flange body is hollow and has a flange ring step. When connecting pipelines, the pipeline is inserted into the flange body, maintaining the distance between the pipeline end face and the flange ring step.

[0037] The base 1 is placed at the bottom of the flange body, which provides support and makes the expansion joint parallel to the end face of the flange body, ensuring that the limit rod 9 is parallel to the axis of the flange body.

[0038] In the initial state, the limiting piece 7 is located at the top of the slide rail 10 of the limiting rod 9, and the driven rod 6 is located at the end of the guide groove 3 near the center of the turntable 2. The distance between the limiting rods 9 is the smallest, which is convenient for insertion into the flange body. The limiting rod 9 is inserted into the flange body, and the drive motor 12 is turned on. The drive motor 12 drives the turntable 2 to rotate. At this time, the driven rod 6 slides along the guide groove 3, which causes the telescopic rod 4 to slide radially outward along the turntable 2. The distance between the limiting rods 9 is adjusted so that the limiting rods 9 are close to the inner wall of the flange body. Then the limiting piece 7 is flipped to the horizontal and slid downward so that the limiting piece 7 is close to the flange ring step.

[0039] After that, the pipe is inserted and welded at the connection between the pipe and the flange body on the outside. After welding, the pipe position is stable. Then, the drive motor 12 is turned on to reverse. At this time, the driven rod 6 slides along the guide groove 3, which causes the telescopic rod 4 to slide radially inward along the turntable 2. The distance between the limit rods 9 is adjusted so that the limit rods 9 are away from the inner wall of the flange body. The limit piece 7 is pulled out from between the flange ring step and the pipe. Then, the limit rod 9 is taken out from the inside of the flange body, completing one use.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A limiting device for a necked socket welding flange, characterized in that, The device includes a base, on which a telescopic assembly is horizontally positioned at the top center. The telescopic assembly is detachably connected to several centrally symmetrical limiting rods on its outer side. The limiting rods are vertically positioned, and the telescopic assembly can drive the limiting rods to slide synchronously. The upper end of each limiting rod is rotatably connected to a limiting plate, the height of which is adjustable.

2. The necked butt welded flange restraining device of claim 1, wherein, The telescopic assembly includes a turntable and a telescopic rod. The turntable has multiple arc-shaped guide grooves, one end of which is close to the center of the turntable and the other end is away from the center of the turntable. One end of the telescopic rod is slidably connected to the guide groove, and the other end is detachably connected to the limiting rod. A limiting component is provided on the top of the base, which is used to limit the telescopic rod from sliding radially along the turntable.

3. The necked butt welding flange stop device of claim 2, wherein, The limiting component includes a plurality of sliding grooves arranged radially along the turntable, and the bottom of the telescopic rod is provided with a slider, which can slide along the sliding grooves.

4. The necked butt welding flange stop device of claim 2 wherein, The guide groove is located on the same circumference at one end near the center of the turntable and at the other end away from the center of the turntable.

5. The necked butt welded flange restraint device of claim 2, wherein, The telescopic rods are vertically mounted on their top ends, close to each other. The driven rod is inserted into the guide groove and can slide along the guide groove.

6. The necked butt welding flange stop device of claim 2 wherein, The base is equipped with a drive motor, and the output shaft of the drive motor is connected to the center of the turntable.

7. The necked butt welding flange stop device of claim 2 wherein, The end of the telescopic rod is bolted to the limiting rod.

8. The necked butt welded flange restraint device of claim 1, wherein, One end of the limiting piece is rotatably connected to the C-shaped clip, and both ends of the clip are rotatably connected to the side wall of the limiting rod.

9. The necked butt welded flange restraint device of claim 8, wherein, The limiting rod has slide rails on both sides corresponding to the locking component, and the locking component can slide along the slide rails.

10. The necked butt welded flange restraint device of claim 1, wherein, Both the base and the limiting rod are made of metal.

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