Liquid pipeline flange

Abstract

The utility model discloses a liquid pipeline flange, which belongs to the field of pipeline flanges and comprises a pipeline I and a pipeline II, the pipeline I is connected with the pipeline II through a flange joint, the flange joint comprises two flange plates which are oppositely connected, each flange plate comprises a flange outer plate with a rotating function, and the flange outer plates are connected with a flange inner plate through a rotating mechanism. A sealing structure is arranged on the connecting face of the flange inner disc, and a center through hole used for being communicated with the first pipeline and the second pipeline is formed in the flange inner disc. By the adoption of the liquid pipeline flange, the problem that pipelines cannot be connected due to the fact that an existing liquid pipeline flange is difficult in butt joint can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline flanges, in particular to a liquid pipeline flange. Background Art

[0002] The liquid pipeline flange is an important component for connecting liquid conveying pipelines, which is used to firmly connect two liquid pipelines together to ensure the smooth flow of liquid in the pipeline system. The liquid pipeline flange can prevent liquid leakage and ensure the sealing performance of the pipeline system. The liquid pipeline flange is connected to the pipeline by means of threads, welding, etc.

[0003] The existing liquid pipeline flanges usually connect two flange plates together through bolts to realize the connection and communication of two pipelines. However, when connecting such flanges, the bolt holes of the two flange plates need to be aligned. In actual situations, the pipelines may not be easily moved. For flanges with threaded pipelines, it is difficult to align the bolt holes of the two flanges, and they cannot be locked and fixed by bolts, resulting in the inability to connect the pipelines. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a liquid pipeline flange to solve the problem that the existing liquid pipeline flanges are difficult to dock, resulting in the inability to connect the pipelines.

[0005] To achieve the above purpose, the utility model provides a liquid pipeline flange, which includes Pipeline One and Pipeline Two. Pipeline One and Pipeline Two are connected by a flange joint. The flange joint includes two relatively connected flange plates. The flange plate includes a flange outer disc with a rotating function. The flange outer disc is connected to the flange inner disc through a rotating mechanism. A sealing structure is arranged on the connecting surface of the flange inner disc. The flange inner disc is provided with a central through hole for communicating with Pipeline One and Pipeline Two.

[0006] Preferably, the rotating mechanism includes a bearing. The inner layer of the flange outer disc is connected to the outer layer of the flange inner disc through the bearing. The flange outer disc is connected to the flange inner disc through a sliding structure.

[0007] Preferably, the sliding structure includes a sliding body one arranged on the inner layer of the flange outer disc. The sliding body one is slidably connected to a sliding body two arranged on the outer layer of the flange inner disc through a sliding component.

[0008] Preferably, the sliding component includes a sliding block. The sliding block is arranged at the bottom end of the sliding body one. A sliding groove is arranged at the top end of the sliding body two. The sliding block is inserted into the sliding groove and is slidably connected to the sliding groove.

[0009] Preferably, the bearing is arranged inside the sliding body one and the sliding body two.

[0010] Preferably, the sealing structure includes a first circular groove and a second circular groove provided on the connecting surface of the inner disc of the flange, and sealing rubber rings are provided in both the first circular groove and the second circular groove.

[0011] Preferably, the circular diameter of the first circular groove is larger than the diameter of the central through hole of the inner disc of the flange, and the circular diameter of the second circular groove is larger than the circular diameter of the first circular groove.

[0012] Preferably, the two flanges are respectively connected to the first pipeline and the second pipeline through threads.

[0013] Preferably, limiting discs are respectively provided on the first pipeline and the second pipeline, and the limiting discs are connected to the flanges through sealing rubber gaskets.

[0014] Preferably, a plurality of threaded holes are provided on the connecting surface of the outer disc of the flange, bolts are provided in the threaded holes, and the two flanges are locked and connected through bolts and nuts.

[0015] Therefore, the liquid pipeline flange of the present utility model adopts the above structure, and the outer disc of the flange is connected to the inner disc of the flange through a bearing, so that the outer disc of the flange with threaded holes has a rotating function, realizing the rotational alignment of the threaded holes of the two flanges, which is convenient for the flanges to be connected by bolts; the outer disc of the flange is slidably connected to the inner disc of the flange through a sliding structure, and the sliding block slides in the sliding groove in the sliding structure, and the sliding groove limits the sliding block, so that the outer disc of the flange is not easily shaken laterally during the rotation process, making the rotation more stable.

[0016] Next, through the drawings and embodiments, the technical solution of the present utility model will be further described in detail. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the liquid pipeline flange according to an embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of the butt joint of the liquid pipeline flange according to an embodiment of the present utility model;

[0019] Figure 3 is Figure 2 an enlarged schematic diagram at A in

[0020] Figure 4 is a sectional view of the connecting surface of the flange according to an embodiment of the present utility model.

[0021] Reference Signs

[0022] 1. Pipe 1; 2. Pipe 2; 3. Flange joint; 4. Flange plate; 5. Outer flange disc; 6. Inner flange disc; 7. Bearing; 8. Sliding body 1; 9. Sliding body 2; 10. Sliding block; 11. Chute; 12. Circular groove 1; 13. Circular groove 2; 14. Sealing rubber ring; 15. Limiting disc; 16. Sealing rubber pad; 17. Threaded hole. Detailed implementation mode

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the following further details the embodiments of the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present utility model and are not used to limit the embodiments of the present utility model. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout.

[0024] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Embodiment

[0029] As Figure 1 shown, a liquid pipeline flange described in the present utility model includes a first pipeline 1 and a second pipeline 2, and the first pipeline 1 and the second pipeline 2 are connected through a flange joint 3. The flange joint 3 includes two relatively connected flange plates 4, and the two flange plates 4 are respectively connected to the first pipeline 1 and the second pipeline 2 through threads.

[0030] As Figure 2 、 Figure 4 shown, the flange plate 4 includes a flange outer plate 5 with a rotating function, and the flange outer plate 5 is connected to a flange inner plate 6 through a rotating mechanism. A central through hole for communicating with the first pipeline 1 and the second pipeline 2 is provided on the flange inner plate 6. A number of threaded holes 17 are provided on the connecting surface of the flange outer plate 5, bolts are provided in the threaded holes 17, and the two flange plates 4 are locked and connected through bolts and nuts. The rotating mechanism includes a bearing 7, the inner layer of the flange outer plate 5 is connected to the outer layer of the flange inner plate 6 through the bearing 7, and the flange outer plate 5 can rotate on the flange inner plate 6 through the bearing 7. Without moving the first pipeline 1 and the second pipeline 2, the threaded holes 17 of the two flange outer plates 5 can be aligned, which is convenient for bolt connection.

[0031] As Figure 2 、 Figure 3 shown, the flange outer plate 5 is connected to the flange inner plate 6 through a sliding structure. The sliding structure includes a first sliding body 8 provided on the inner layer of the flange outer plate 5, and the first sliding body 8 is slidably connected to a second sliding body 9 provided on the outer layer of the flange inner plate 6 through a sliding assembly. The sliding assembly includes a sliding block 10, the sliding block 10 is provided at the bottom end of the first sliding body 8, a sliding groove 11 is provided at the top end of the second sliding body 9, and the sliding block 10 is inserted into the sliding groove 11 and slidably connected to the sliding groove 11. The bearing 7 is provided inside the first sliding body 8 and the second sliding body 9. When the flange outer plate 5 rotates on the flange inner plate 6 through the bearing 7, the two sliding blocks 10 of the first sliding body 8 respectively slide in the two sliding grooves 11 of the second sliding body 9. The sliding groove 11 has a limiting effect on the sliding block 10, so that the flange outer plate 5 is not easily shaken laterally during rotation, making the rotation more stable.

[0032] As Figure 4As shown in the figure, a sealing structure is provided on the connecting surface of the flange inner disc 6. The sealing structure includes a circular groove one 12 and a circular groove two 13 provided on the connecting surface of the flange inner disc 6, and sealing rubber rings 14 are provided in both the circular groove one 12 and the circular groove two 13. The circular diameter of the circular groove one 12 is larger than the diameter of the central through hole of the flange inner disc 6, and the circular diameter of the circular groove two 13 is larger than the circular diameter of the circular groove one 12. Limit discs 15 are respectively provided on the pipeline one 1 and the pipeline two 2, and the limit discs 15 are connected to the flange disc 4 through sealing rubber pads 16. When the two flange inner discs 6 are butted, the corresponding sealing rubber rings 14 are pressed tightly, which can greatly enhance the sealing performance of the flange connection.

[0033] During use, first install the two flange discs 4 onto the pipeline one 1 and the pipeline two 2 respectively through threads. The limit discs 15 are connected to the flange disc 4 after installation through sealing rubber pads 16 to improve the sealing performance at the connection between the flange disc 4 and the pipeline and prevent water leakage. Then butt the two flange discs 4, rotate the flange outer disc 5 to align the threaded holes 17, and lock them with bolts and nuts.

[0034] Therefore, by adopting the above-mentioned liquid pipeline flange of the present utility model, the problem that the existing liquid pipeline flange is difficult to butt and the pipeline cannot be connected can be solved.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. A liquid pipeline flange, comprising a first pipeline and a second pipeline, characterized in that: Pipe 1 and Pipe 2 are connected by a flange joint. The flange joint includes two relatively connected flange plates. The flange plate includes a flange outer plate with a rotating function. The flange outer plate is connected to the flange inner plate through a rotating mechanism. A sealing structure is provided on the connecting surface of the flange inner plate. The flange inner plate is provided with a central through hole for communicating with Pipe 1 and Pipe 2.

2. The liquid pipeline flange according to claim 1, characterized in that: The rotating mechanism includes a bearing. The inner layer of the flange outer plate is connected to the outer layer of the flange inner plate through the bearing. The flange outer plate is connected to the flange inner plate through a sliding structure.

3. The liquid pipeline flange according to claim 2, characterized in that: The sliding structure includes a sliding body 1 provided on the inner layer of the flange outer plate. The sliding body 1 is slidably connected to a sliding body 2 provided on the outer layer of the flange inner plate through a sliding assembly.

4. The liquid pipeline flange according to claim 3, wherein: The sliding assembly includes a sliding block. The sliding block is provided at the bottom end of the sliding body 1. A sliding groove is provided at the top end of the sliding body 2. The sliding block is inserted into the sliding groove and is slidably connected to the sliding groove.

5. The liquid pipeline flange according to claim 3, wherein: The bearing is provided inside the sliding body 1 and the sliding body 2.

6. The liquid pipeline flange according to claim 1, wherein: The sealing structure includes a circular groove 1 and a circular groove 2 provided on the connecting surface of the flange inner plate. Sealing rubber rings are provided in both the circular groove 1 and the circular groove 2.

7. The liquid pipeline flange according to claim 1, characterized in that: The circular diameter of the circular groove 1 is larger than the diameter of the central through hole of the flange inner plate. The circular diameter of the circular groove 2 is larger than the circular diameter of the circular groove 1.

8. The liquid pipeline flange according to claim 1, wherein: The two flange plates are respectively connected to Pipe 1 and Pipe 2 through threads.

9. The liquid pipeline flange according to claim 1, wherein: Limiting plates are respectively provided on Pipe 1 and Pipe 2. The limiting plates are connected to the flange plates through sealing rubber gaskets.

10. The liquid pipeline flange according to claim 1, characterized in that: A number of threaded holes are provided on the connecting surface of the flange outer plate. Bolts are provided in the threaded holes. The two flange plates are tightly connected through bolts and nuts.

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