Welding neck flange with sealing effect

Abstract

The utility model discloses a welding neck flange with a sealing effect, which comprises a first flange, a second flange arranged on one side of the first flange, a welding platform fixedly connected to one side of the first flange and one side of the second flange, mounting plates fixedly connected to the outer side of the first flange and the outer side of the second flange at equal intervals, and a fixing block fixedly connected to the outer side of the first flange. A positioning assembly is arranged in the fixing block, a threaded groove is formed in the mounting plate and is in threaded connection with a bolt, the outer side of the bolt is in threaded connection with a nut, and a sealing assembly is arranged between the first flange and the second flange. The utility model aims to solve the problems that the threaded holes are difficult to align when the flange is fixed, so that more operation steps are needed for aligning a plurality of threaded holes, more time and energy are consumed, and the installation efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of butt-welding flanges, in particular to a butt-welding flange with a sealing effect. Background Art

[0002] A butt welding flange is a flange that connects pipes and is commonly used to connect valves, pipes, flanges and other equipment in a piping system. A butt welding flange has a platform for welding to the pipe and a raised annular edge for connecting to another flange or equipment. A butt welding flange is usually connected to the pipe by butt welding, which is a more secure and durable connection. A butt welding flange can be used in high-pressure or high-temperature piping systems and is commonly used in industry and construction.

[0003] Generally, the butt-welding flanges are fixed with bolts and nuts. However, when the two flanges are butt-jointed, the threaded holes of the two flanges need to be aligned before the bolts and nuts can be installed. Since the outer side of the flange is generally fixed with four bolts and nuts, it is difficult to align the threaded holes during fixation. As a result, aligning multiple screw holes requires more steps, which takes more time and effort, thereby reducing the efficiency of installation. Utility Model Content

[0004] The utility model aims to provide a butt-welding flange with a sealing effect to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a first flange, a second flange is arranged on one side of the first flange, a welding platform is fixedly connected to one side of the first flange and the second flange, mounting plates are equidistantly fixedly connected to the outer sides of the first flange and the second flange, a fixing block is fixedly connected to the outer side of the first flange, a positioning assembly is arranged inside the fixing block, a threaded groove is opened inside the mounting plate and a bolt is threadedly connected thereto, a nut is threadedly connected to the outer side of the bolt, and a sealing assembly is arranged between the first flange and the second flange.

[0006] As a further preferred embodiment of the present technical solution, the positioning component includes a slide groove, the slide groove is provided inside the fixed block, and a positioning groove is provided inside the fixed block and at the bottom of the slide groove.

[0007] As a further preferred embodiment of the present technical solution, the positioning assembly also includes a positioning rod, which is fixedly connected to the outer side of the second flange, and a slot is formed through the top of the positioning rod, and one end of the positioning rod extends into the interior of the positioning slot.

[0008] As a further preferred embodiment of the present technical solution, a sliding block is slidably connected inside the sliding groove, and a spring is fixedly connected between the top of the sliding block and the inner wall of the sliding groove.

[0009] As a further preferred embodiment of the present technical solution, a card block is slidably connected inside the fixed block, one end of the card block is fixedly connected to the bottom of the slider, one end of the card block extends to the inside of the card slot, and one end of the card block is provided with a slope.

[0010] As a further preferred embodiment of the technical solution, a displacement groove is formed through one side of the fixed block, a shift rod is slidably connected inside the displacement groove, and one end of the shift rod is fixedly connected to one side of the slider.

[0011] As a further preferred embodiment of the present technical solution, the sealing assembly includes a sealing ring, which is arranged on one side of the second flange, and a sealing groove is provided on one side of the first flange corresponding to the sealing ring.

[0012] The utility model provides a butt welding flange with a sealing effect, which has the following beneficial effects:

[0013] (1) The utility model can align the threaded holes between the first flange and the second flange mounting plates through the positioning assembly, thereby facilitating the installation of bolts and nuts. Then, the first flange and the second flange can be preliminarily fixed through the positioning assembly, thereby preventing the threaded holes from shifting when installing the bolts and nuts, thereby further increasing the convenience of installation.

[0014] (2) The utility model uses a sealing assembly between the first flange and the second flange to increase the sealing between the first flange and the second flange after the first flange and the second flange are combined, thereby avoiding leakage of gas or liquid, and thus increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the second flange structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the positioning component structure of the utility model;

[0019] In the figure: 1. first flange; 2. nut; 3. sealing groove; 4. mounting plate; 5. fixing block; 6. positioning rod; 7. second flange; 8. bolt; 9. welding platform; 10. sealing ring; 11. slot; 12. displacement slot; 13. lever; 14. slide slot; 15. spring; 16. slider; 17. block; 18. positioning groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1-Figure 4 As shown, in this embodiment, a butt-welding flange with a sealing effect includes a first flange 1, a second flange 7 is arranged on one side of the first flange 1, a welding platform 9 is fixedly connected to one side of the first flange 1 and the second flange 7, mounting plates 4 are equidistantly fixedly connected to the outer sides of the first flange 1 and the second flange 7, a fixing block 5 is fixedly connected to the outer side of the first flange 1, a positioning assembly is arranged inside the fixing block 5, a threaded groove is opened inside the mounting plate 4 and a bolt 8 is threadedly connected thereto, a nut 2 is threadedly connected to the outer side of the bolt 8, and a sealing assembly is arranged between the first flange 1 and the second flange 7.

[0022] First, the welding platform 9 on one side of the first flange 1 is welded and fixed to one end of the pipe, and then the second flange 7 is placed on one side of the first flange 1. Then, the threaded holes between the first flange 1 and the second flange 7 mounting plates 4 can be aligned through the positioning assembly, so as to facilitate the installation of bolts 8 and nuts 2. Then, the first flange 1 and the second flange 7 can be preliminarily fixed through the positioning assembly to prevent the threaded hole displacement problem when installing the bolts 8 and nuts 2, thereby further increasing the convenience of installation. Finally, through the sealing assembly between the first flange 1 and the second flange 7, the sealing between the first flange 1 and the second flange 7 can be increased after the first flange 1 and the second flange 7 are combined to avoid gas or liquid leakage, thereby increasing the practicality of the device.

[0023] like Figure 1-Figure 4As shown, the positioning assembly includes a slide groove 14, which is opened inside the fixed block 5, and a positioning groove 18 is opened inside the fixed block 5 and at the bottom of the slide groove 14. The positioning assembly also includes a positioning rod 6, which is fixedly connected to the outer side of the second flange 7, and the top of the positioning rod 6 is penetrated with a card slot 11, and one end of the positioning rod 6 extends to the inside of the positioning groove 18. A slider 16 is slidably connected inside the slide groove 14, and a spring 15 is fixedly connected between the top of the slider 16 and the inner wall of the slide groove 14. A card block 17 is slidably connected inside the fixed block 5, and one end of the card block 17 is fixedly connected to the bottom of the slider 16, and one end of the card block 17 extends to the inside of the card slot 11. One end of the card block 17 is provided with an inclined surface, and a displacement groove 12 is opened on one side of the fixed block 5, and a lever 13 is slidably connected inside the displacement groove 12, and one end of the lever 13 is fixedly connected to one side of the slider 16.

[0024] When docking the flanges, one end of the positioning rod 6 is inserted into the positioning groove 18, and then the position of the threaded hole is aligned. Then, when the positioning rod 6 enters the positioning groove 18, one end of the positioning rod 6 contacts the inclined surface of the block 17, thereby driving the block 17 to move and driving the slider 16 to move to compress the spring 15. Then, after the slot 11 inside the positioning rod 6 moves to the bottom of the block 17, the slider 16 is driven to move under the reaction force of the spring 15 and the block 17 is automatically driven into the slot 11 to complete the fixation of the positioning rod 6, thereby preliminarily positioning the first flange 1 and the second flange 7. Then, when disassembling the flanges, the lever 13 is driven to slide in the displacement groove 12 and drive the slider 16 to move, and then drive the block 17 to disengage from the slot 11, thereby releasing the fixation of the positioning rod 6, and then releasing the positioning of the first flange 1 and the second flange 7.

[0025] like Figure 1-Figure 4 As shown, the sealing assembly includes a sealing ring 10 , which is arranged on one side of the second flange 7 , and a sealing groove 3 is provided on one side of the first flange 1 corresponding to the sealing ring 10 .

[0026] After the first flange 1 and the second flange 7 are combined, the sealing ring 10 enters into the sealing groove 3 to form a closed space, thereby reducing the gap between the first flange 1 and the second flange 7 and improving the sealing performance of the first flange 1 and the second flange 7.

[0027] The utility model provides a butt-welded flange with a sealing effect, and the specific working principle is as follows: first, the welding platform 9 on one side of the first flange 1 is welded and fixed to one end of the pipe, and then the second flange 7 is placed on one side of the first flange 1, and then one end of the positioning rod 6 is inserted into the interior of the positioning groove 18, and then the position of the threaded hole is aligned, and then when the positioning rod 6 enters the interior of the positioning groove 18, one end of the positioning rod 6 contacts the inclined surface of the block 17, thereby driving the block 17 to move and driving the slider 16 to move to compress the spring 15, and then after the slot 11 inside the positioning rod 6 moves to the bottom of the block 17, the slider 16 is driven to move under the reaction force of the spring 15 and the block 17 is automatically driven Enter the interior of the card slot 11 to complete the fixation of the positioning rod 6, thereby preliminarily positioning the first flange 1 and the second flange 7. Then, when removing the flange, slide the lever 13 in the displacement slot 12 while driving the slider 16 to move, and then drive the block 17 to disengage from the interior of the card slot 11, thereby releasing the fixation of the positioning rod 6, and then releasing the positioning of the first flange 1 and the second flange 7. Then, tighten the bolt 8 and the nut 2 by turning them. Finally, after the first flange 1 and the second flange 7 are combined, enter the interior of the sealing groove 3 through the sealing ring 10, thereby forming a closed space, reducing the gap between the first flange 1 and the second flange 7, and increasing the sealing of the first flange 1 and the second flange 7.

[0028] 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 butt-weld flange with sealing effect, comprising a first flange (1), characterized in that: A second flange (7) is arranged on one side of the first flange (1); a welding platform (9) is fixedly connected to one side of the first flange (1) and the second flange (7); mounting plates (4) are fixedly connected to the outer sides of the first flange (1) and the second flange (7) at equal distances; a fixing block (5) is fixedly connected to the outer side of the first flange (1); a positioning assembly is arranged inside the fixing block (5); a threaded groove is provided inside the mounting plate (4) and a bolt (8) is threadedly connected thereto; a nut (2) is threadedly connected to the outer side of the bolt (8); and a sealing assembly is arranged between the first flange (1) and the second flange (7).

2. A butt welding flange with sealing effect according to claim 1, characterized in that: The positioning assembly comprises a slide groove (14), wherein the slide groove (14) is arranged inside the fixed block (5), and a positioning groove (18) is arranged inside the fixed block (5) and at the bottom of the slide groove (14).

3. A butt welding flange with sealing effect according to claim 2, characterized in that: The positioning assembly also includes a positioning rod (6), which is fixedly connected to the outer side of the second flange (7), a slot (11) is provided through the top of the positioning rod (6), and one end of the positioning rod (6) extends to the inside of the positioning slot (18).

4. A butt welding flange with sealing effect according to claim 3, characterized in that: A slider (16) is slidably connected inside the slide groove (14), and a spring (15) is fixedly connected between the top of the slider (16) and the inner wall of the slide groove (14).

5. A butt welding flange with sealing effect according to claim 4, characterized in that: A clamping block (17) is slidably connected inside the fixed block (5), one end of the clamping block (17) is fixedly connected to the bottom of the sliding block (16), one end of the clamping block (17) extends into the interior of the clamping slot (11), and one end of the clamping block (17) is provided with an inclined surface.

6. The butt welding flange with sealing effect according to claim 4, characterized in that: A displacement groove (12) is formed through one side of the fixed block (5), a shifting rod (13) is slidably connected inside the displacement groove (12), and one end of the shifting rod (13) is fixedly connected to one side of the sliding block (16).

7. The butt welding flange with sealing effect according to claim 1, characterized in that: Said The sealing assembly comprises a sealing ring (10), wherein the sealing ring (10) is arranged on one side of the second flange (7). A sealing groove (3) is provided on one side of the first flange (1) corresponding to the sealing ring (10).

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