High-neck grooved antiskid plate type flat welding flange

Abstract

The utility model discloses a high-neck grooved antiskid plate type flat welding flange which comprises a first flange and a second flange, round holes are formed in the outer side of the first flange and the outer side of the second flange, a first round hole is formed in the middle of the first flange, a second round hole is formed in the middle of the second flange, and the first round hole is communicated with the second round hole. A welding neck block is fixedly connected to the outer side of the first flange and the outer side of the second flange, a hollow circular ring block is fixedly connected to the interior of the first circular hole, the hollow circular ring block is fixedly connected with the welding neck block, threads are arranged on the outer side of the hollow circular ring block, and a threaded groove is formed in the inner side of the second circular hole. Through the arrangement of the hollow circular ring block, the circular ring-shaped groove, the circular ring-shaped convex block and the threaded groove, even if the flange gasket is damaged, the flanges are in threaded connection with the circular ring-shaped groove and the circular ring-shaped convex block, so that the flanges have good sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, and particularly relates to a high-neck grooved non-slip plate type butt welding flange. Background Art

[0002] A flange is a part used to connect the pipe ends or between devices, and has various connection methods and extensive industrial applications. A flange is a mechanical fitting widely used in the industrial field, mainly used for the connection between pipes or devices. They usually appear in pairs, are fastened together by bolts, and a sealing gasket is placed between the two flange plates to ensure the sealing performance of the connection.

[0003] Currently, only a sealing gasket is used for the connection of flanges. When the used flange gasket is corroded and damaged, the sealing performance of the flange is greatly reduced. Therefore, better flanges are needed for actual use. Summary of the Utility Model

[0004] In order to overcome the deficiency of low sealing performance of flanges in the prior art, one of the purposes of the present utility model is to provide a high-neck grooved non-slip plate type butt welding flange.

[0005] One of the purposes of the present utility model is realized by adopting the following technical scheme: a high-neck grooved non-slip plate type butt welding flange, comprising flange one and flange two: circular holes are opened on the outer sides of the flange one and the flange two, a circular hole one is opened in the middle part of the flange one, a circular hole two is opened in the middle part of the flange two, and high-neck blocks are fixedly connected to the outer sides of the flange one and the flange two;

[0006] A hollow ring block is fixedly connected inside the circular hole one, the hollow ring block is fixedly connected to the high-neck block, threads are arranged on the outer side of the hollow ring block, and a thread groove is arranged inside the circular hole two. The threaded connection between the flange one and the flange two makes the flange connection have better sealing performance.

[0007] According to the described high-neck grooved non-slip plate type butt welding flange, the outer ring circle of the high-neck block is connected to the edges of the circular hole one and the circular hole two. This is beneficial to the welding of the pipe to the flange.

[0008] According to the described high-neck grooved non-slip plate type butt welding flange, reinforcing ribs are fixedly connected to the outer side of the high-neck block. To strengthen the high-neck block.

[0009] According to the described high-neck grooved non-slip plate type butt welding flange, a circular groove is opened on the outer side of the flange one, a circular raised block is fixedly connected to the outer side of the flange two, and the circular groove and the circular raised block are mutually fitted. This makes the sealing performance better after the flanges are combined.

[0010] According to the described high-neck grooved anti-slip plate type butt-welding flange, bolts are provided on the first flange and the second flange. Connecting the flanges through bolts increases the sealing performance of the flanges.

[0011] According to the described high-neck grooved anti-slip plate type butt-welding flange, the width of the hollow ring block is equal to the width of the high-neck block. This is beneficial to the tight connection between the first flange and the second flange.

[0012] The beneficial effects of the above solution are as follows: Through the settings of the hollow ring block, the circular groove, the circular raised block, and the threaded groove, even if the flange gasket is damaged, the threaded connection between the flanges and the circular groove and the circular raised block can still ensure good sealing performance between the flanges.

[0013] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0014] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0015] Figure 1 It is a schematic diagram of the overall structure of a high-neck grooved anti-slip plate type butt-welding flange of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the first flange of a high-neck grooved anti-slip plate type butt-welding flange of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the second flange of a high-neck grooved anti-slip plate type butt-welding flange of the present utility model;

[0018] Figure 4 It is a schematic diagram of the structure of a part of a high-neck grooved anti-slip plate type butt-welding flange of the present utility model.

[0019] Legend Explanation:

[0020] 1. First flange; 2. Second flange; 3. Round hole; 4. High-neck block; 5. Reinforcing rib; 6. Hollow ring block; 7. Circular groove; 8. Circular raised block; 9. Bolt; 10. Threaded groove; 11. Second circular hole; 12. First circular hole. Detailed Embodiment

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0022] Reference Figures 1-4 , a high-neck grooved anti-slip plate butt-welding flange, comprising a flange one 1 and a flange two 2: a circular hole 3 is provided on the outer side of the flange one 1, a circular hole one 12 is provided in the middle part of the flange one 1, a high-neck block 4 is fixedly connected to the outer side of the flange one 1, a hollow ring block 6 is fixedly connected inside the circular hole one 12, the hollow ring block 6 is fixedly connected to the high-neck block 4, the width of the hollow ring block 6 is equal to the width of the high-neck block 4, a thread is provided on the outer side of the hollow ring block 6, the outer ring circle of the high-neck block 4 is in contact with the edge of the circular hole one 12, a reinforcing rib 5 is fixedly connected to the outer side of the high-neck block 4, a circular groove 7 is provided on the outer side of the flange one 1. Before using the flange one 1, first, the staff performs the nesting work of the flange and the pipe. The pipe is sleeved at the outer opening of the high-neck block 4 and the outer opening of the hollow ring block 6. By doing so, after the flange is connected, the connection at the interface of the pipe can be made more compact, improving the sealing performance of the flange. Then, a flange gasket is sleeved on the outer side of the hollow ring block 6, and at the same time, a rubber pad is sleeved at the circular groove 7 for combined use with the circular convex part of the flange two 2, so that the sealing performance of the flange connection is strengthened again.

[0023] A circular hole 3 is provided on the outer side of the flange two 2, a circular hole two 11 is provided in the middle part of the flange two 2, a high-neck block 4 is fixedly connected to the outer side of the flange two 2, a thread groove 10 is provided inside the circular hole two 11, the outer ring circle of the high-neck block 4 is in contact with the edge of the circular hole two 11, a reinforcing rib 5 is fixedly connected to the outer side of the high-neck block 4, and a circular convex block 8 is fixedly connected to the outer side of the flange two 2. Before using the flange two 2, first, the staff sleeves the pipe at the outer opening and the inner opening of the high-neck block 4. The advantage is that when the flange is thread-connected, the width of the hollow ring block 6 just aligns with the width of the high-neck block 4, and the interfaces of the pipes are connected, thereby further improving the sealing performance of the flange.

[0024] The circular groove 7 and the circular convex block 8 are mutually fitted, and a bolt 9 is provided between the flange one 1 and the flange two 2. When the pipes are sleeved on both flanges, at this time, align the flange one 1 with the flange two 2, and align the hollow ring block 6 of the flange one 1 with the circular hole two of the flange two 2. At this time, since the pipe has not been welded, then slowly rotate the flange one 1. When the flange one 1 is completely rotated into the flange two 2 and the circular convex block 8 is also pressed into the circular groove 7, at this time, the sealing performance of the flange is improved, so that even if the flange gasket is damaged, the sealing performance is still intact. Then, align the circular holes 3 of the flange one 1 and the flange two 2, and then fix them with the bolt 9. A flat washer can also be added to disperse the pressure and improve the stability of the connection. Finally, fix the connection position of the pipe, and then directly weld the outer interface of the pipe and the flange.

[0025] Working principle: First, the staff puts the pipe sleeve into the flange, and then adds flange gaskets and rubber pads at the connection of the flange to make the connection between the flanges better. Then, the flange is fixed by screwing. After that, align with the round hole 3 and fix it with the bolt 9. Flat washers can also be added to improve the stability of the device. Finally, weld the pipe.

[0026] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the relevant art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A high-neck grooved anti-slip plate type flat welding flange, characterized in that: It comprises flange 1 (1) and flange 2 (2): the outer sides of flange 1 (1) and flange 2 (2) are provided with circular holes (3), the middle part of flange 1 (1) is provided with circular hole 1 (12), the middle part of flange 2 (2) is provided with circular hole 2 (11), and the outer sides of flange 1 (1) and flange 2 (2) are fixedly connected with high neck blocks (4); A hollow circular ring block (6) is fixedly connected inside the circular hole one (12), the hollow circular ring block (6) and the high neck block (4) are fixedly connected, a thread is arranged on the outer side of the hollow circular ring block (6), and a thread groove (10) is arranged on the inner side of the circular hole two.

2. The high-neck grooved anti-slip plate type flat welding flange according to claim 1 is characterized in that: The outer ring of the high neck block (4) is connected to the edges of the circular hole 1 (12) and the circular hole 2 (11).

3. The high-neck grooved anti-slip plate type flat welding flange according to claim 1 is characterized in that: A reinforcing rib (5) is fixedly connected to the outer side of the high neck block (4).

4. The high-neck grooved anti-slip plate type flat welding flange according to claim 1 is characterized in that: The outer side of the flange 1 (1) is provided with a circular groove (7), and the outer side of the flange 2 is fixedly connected with a circular protrusion (8), and the circular groove (7) and the circular protrusion (8) are fitted with each other.

5. The high-neck grooved anti-slip plate type flat welding flange according to claim 1 is characterized in that: Bolts (9) are arranged between flange one (1) and flange two (2).

6. The high-neck grooved anti-slip plate type flat welding flange according to claim 1 is characterized in that: The width of the hollow circular ring block (6) is equal to the width of the high neck block (4).

Images