Self-locking high-pressure sealing flange

Abstract

The utility model provides a kind of self-locking high-pressure sealing flange, including two connecting pipelines, the end of one connecting pipeline is connected with sealing flange piece one, the end of another connecting pipeline is connected with sealing flange piece two, and sealing ring is arranged at the connecting place of sealing flange piece one and sealing flange piece two and corresponding connecting pipeline, outer protective positioning assembly is arranged outside the connecting place of sealing flange piece one and sealing flange piece two, and self-locking component is arranged at the both ends of outer protective positioning assembly.The utility model has the beneficial effects as follows, the utility model is simple in structure, convenient to use, can effectively improve the sealing effect of flange connecting place, and avoid the problem of deformation of sealing gasket after long time use, avoid the problem of leakage caused by gap two.

Description

Technical Field

[0001] This utility model is a self-locking high-pressure sealing flange, belonging to the field of high-pressure flange technology. Background Technology

[0002] A flange, also called a flange plate or flange, is a part used to connect pipes to each other. It is used to connect pipe ends, and flanges are also used on equipment inlets and outlets to connect two pieces of equipment.

[0003] For example, the "Self-locking Flange and Pipeline with Self-locking Flange" provided in application number CN202022852058.2 uses a locking block and a flange to install and fix the flange on the pipeline. No welding is required. After pumping, purging, and other operations are completed, the flange can be removed by removing the locking block. The operation is simple, improves work efficiency, and does not damage the pipeline structure. It can be reused after removal. Although the flange is fixed by the cooperation of the locking block and the flange, the gasket between the two flanges is prone to deformation during long-term use. The deformed gasket can easily cause gaps between the two flanges, leading to leakage and affecting the sealing performance. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a self-locking high-pressure sealing flange.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A self-locking high-pressure sealing flange includes two connecting pipes. One connecting pipe is connected to a sealing flange first, and the other connecting pipe is connected to a sealing flange second. Sealing rings are provided at the connection points between sealing flange first and sealing flange second and their corresponding connecting pipes. An external protective positioning component is provided outside the connection points between sealing flange first and sealing flange second, and self-locking components are provided at both ends of the external protective positioning component.

[0006] Furthermore, the sealing flange includes an outer connecting sleeve, the outer wall of which is provided with a sealing patch, one end of which is integrally connected to an outer mating ring, and a mating cavity is provided on one side wall of the outer mating ring. An insert sleeve is integrally connected to the inner wall of the outer mating ring, and a rubber sealing ring is fitted on the outer wall of the insert sleeve. An annular protrusion is integrally connected to the outside of the rubber sealing ring.

[0007] Furthermore, the sealing flange component two includes a sealing connecting ring, which matches the mating cavity. One end of the sealing connecting ring is integrally connected to an outer limiting retaining ring, and a tapered connecting sleeve is integrally connected to the inner wall of the sealing connecting ring. The connecting pipe matches the tapered connecting sleeve, and the inner wall of the sealing connecting ring is provided with a sealing thread that matches the rubber sealing ring.

[0008] Furthermore, the self-locking component includes locking connecting blocks distributed vertically, with semi-circular locking rings integrally connected between the locking connecting blocks, and a ring formed between the two semi-circular locking rings that matches the sealing flange one and the sealing flange two.

[0009] Furthermore, a transverse support plate is fixedly connected to the locking connecting block. A limit block is fixedly connected to the bottom of one end of the transverse support plate. A locking screw is provided between the limit blocks. The locking screw passes through the locking connecting block, and limit nuts are threaded on both ends of the locking screw.

[0010] Furthermore, the outer protective positioning component includes an inner groove located within a semi-circular locking ring, with elastic sealing rings integrally connected to both sides of the inner groove, and an outer rubber ring located outside the elastic sealing ring within the semi-circular locking ring.

[0011] The beneficial effects of this utility model are: The two connecting pipes are connected to the corresponding sealing flanges 1 and 2, enabling a sealed connection. The sealing ring improves the sealing performance at the connection. The outer protective positioning component positions the sealing flanges 1 and 2. Through the cooperation of the self-locking component and the outer protective positioning component, the outer protective positioning component can be locked. This utility model has a simple structure, is easy to use, effectively improves the sealing effect at the flange connection, and avoids the problem of deformation of the sealing gasket after long-term use, thus preventing leakage caused by gaps. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of a self-locking high-pressure sealing flange according to the present invention; Figure 2 This is a structural schematic diagram of a sealing flange component in a self-locking high-pressure sealing flange according to this utility model; Figure 3 This is a schematic diagram of the structure of the sealing flange component two in the self-locking high-pressure sealing flange of this utility model; Figure 4 This is a schematic diagram of the self-locking component in a self-locking high-pressure sealing flange according to the present invention; Figure 5This is a schematic diagram of the structure of the outer protective positioning component in a self-locking high-pressure sealing flange according to this utility model.

[0014] In the diagram, 1. Connecting pipe; 2. Sealing flange one; 3. Sealing flange two; 4. Sealing ring; 5. Outer protective positioning assembly; 6. Self-locking component; 7. Outer connecting sleeve; 8. Sealing patch; 9. Outer mating ring; 10. Butt joint cavity; 11. Insert sleeve; 12. Rubber sealing ring; 13. Annular protrusion; 14. Sealing connecting ring; 15. Outer limit stop ring; 16. Conical connecting sleeve; 17. Sealing thread; 18. Locking connecting block; 19. Semi-circular locking ring; 20. Transverse support plate; 21. Limit stop block; 22. Locking screw; 23. Limit nut; 24. Inner groove; 25. Elastic sealing ring; 26. Outer rubber ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-5 This utility model provides a self-locking high-pressure sealing flange technical solution, including two connecting pipes 1. One end of the connecting pipe 1 is connected to a sealing flange 2, and the other end of the connecting pipe 1 is connected to a sealing flange 3. The two connecting pipes 1 are connected to the corresponding sealing flanges 2 and 3, which can achieve a sealed connection. A sealing ring 4 is provided at the connection between the sealing flanges 2 and 3 and the corresponding connecting pipe 1, which can improve the sealing performance of the connection. An external protective positioning component 5 is provided outside the connection between the sealing flanges 2 and 3. Self-locking components 6 are provided at both ends of the external protective positioning component 5. The external protective positioning component 5 can position the sealing flanges 2 and 3. Through the cooperation of the self-locking components 6 and the external protective positioning component 5, the external protective positioning component 5 can be locked.

[0017] See Figure 2-3Sealing flange component 2 includes an outer connecting sleeve 7, the outer wall of which is provided with a sealing patch 8, one end of which is integrally connected to an outer mating ring 9, and a mating cavity 10 is provided on one side wall of the outer mating ring 9, an insert sleeve 11 is integrally connected to the inner wall of the outer mating ring 9, and a rubber sealing ring 12 is fitted on the outer wall of the insert sleeve 11, and an annular protrusion 13 is integrally connected to the outside of the rubber sealing ring 12. Sealing flange component 3 includes a sealing connecting ring 14, which matches the mating cavity 10, one end of which is integrally connected to an outer limiting stop ring 15, and a conical connecting sleeve 16 is integrally connected to the inner wall of the sealing connecting ring 14, and the connecting pipe 1 matches the conical connecting sleeve 16. The inner wall of the sealing connecting ring 14 is provided with a sealing thread 17 that matches the rubber sealing ring 12. The sealing ring 14 is connected and sealed to the docking cavity 10. During the connection, the rubber sealing ring 12 works in conjunction with the annular protrusion 13 to achieve the effect of compression sealing, thereby avoiding deformation and damage at the sealing point.

[0018] See Figure 4 The self-locking component 6 includes vertically distributed locking connecting blocks 18. Semi-circular locking rings 19 are integrally connected between the locking connecting blocks 18, forming a ring between the two semi-circular locking rings 19 that matches the sealing flange 2 and the sealing flange 3. A transverse support plate 20 is integrally fixedly connected to the locking connecting blocks 18. A limit stop 21 is fixedly connected to the bottom of one end of the transverse support plate 20. A locking screw 22 is provided between the limit stops 21, passing through the locking connecting blocks 18, and limit nuts 23 are threaded onto both ends of the locking screw 22. Through the locking screw 22 and the locking connecting blocks 18, the two semi-circular locking rings 19 are connected and sealed. The limit nuts 23 ensure the locking operation.

[0019] See Figure 5 The outer protective positioning component 5 includes an inner groove 24 located within a semi-circular locking ring 19. Elastic sealing rings 25 are integrally connected to both sides of the inner groove 24, and an outer rubber ring 26 is provided inside the semi-circular locking ring 19 outside the elastic sealing rings 25. The combination of the elastic sealing rings 25 and the outer rubber ring 26 improves the sealing effect of the semi-circular locking ring 19 on the sealing flange 2 and the sealing flange 3 after connection.

[0020] In use, the two connecting pipes 1 are connected to the corresponding sealing flange 2 and sealing flange 3. The sealing flange 2 and sealing flange 3 can achieve a sealed connection. The sealing ring 4 can improve the sealing performance at the connection. The outer protective positioning component 5 can position the sealing flange 2 and sealing flange 3. Through the cooperation of the self-locking component 6 and the outer protective positioning component 5, the outer protective positioning component 5 can be locked. This utility model has a simple structure and is easy to use. It can effectively improve the sealing effect at the flange connection and avoid the problem of deformation of the sealing gasket after long-term use, thus avoiding the problem of leakage caused by gaps.

[0021] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-locking high pressure sealing flange, characterized in that, It includes two connecting pipes (1), one of which is connected to a sealing flange (2) at one end, and the other is connected to a sealing flange (3) at the other end. A sealing ring (4) is provided at the connection between the sealing flange (2) and the sealing flange (3) and the corresponding connecting pipe (1). An external protective positioning component (5) is provided at the connection between the sealing flange (2) and the sealing flange (3). A self-locking component (6) is provided at both ends of the external protective positioning component (5).

2. The self-locking high-pressure sealing flange according to claim 1, characterized in that, The sealing flange component 1 (2) includes an outer connecting sleeve (7), the outer wall of the outer connecting sleeve (7) is provided with a sealing patch (8), one end of the outer connecting sleeve (7) is integrally connected to an outer mating ring (9), and a mating cavity (10) is provided on one side wall of the outer mating ring (9), an insert sleeve (11) is integrally connected to the inner wall of the outer mating ring (9), and a rubber sealing ring (12) is fitted on the outer wall of the insert sleeve (11), and an annular protrusion (13) is integrally connected to the outside of the rubber sealing ring (12).

3. A self-locking high-pressure sealing flange according to claim 2, characterized in that, The sealing flange part 2 (3) includes a sealing connection ring (14), which is matched with the mating cavity (10). One end of the sealing connection ring (14) is integrally connected with an outer limit stop ring (15). A tapered connection sleeve (16) is integrally connected to the inner wall of the sealing connection ring (14), and the connecting pipe (1) is matched with the tapered connection sleeve (16). The inner wall of the sealing connection ring (14) is provided with a sealing thread (17) that matches the rubber sealing ring (12).

4. A self-locking high-pressure sealing flange according to claim 3, characterized in that, The self-locking component (6) includes locking connecting blocks (18) distributed vertically, with semi-circular locking rings (19) integrally connected between the locking connecting blocks (18), and the two semi-circular locking rings (19) forming a ring that matches the sealing flange one (2) and the sealing flange two (3).

5. A self-locking high-pressure sealing flange according to claim 4, characterized in that, A transverse support plate (20) is fixedly connected to the locking connecting block (18). A limit stop (21) is fixedly connected to one end of the transverse support plate (20). A locking screw (22) is provided between the limit stops (21). The locking screw (22) passes through the locking connecting block (18), and limit nuts (23) are threaded on both ends of the locking screw (22).

6. A self-locking high-pressure sealing flange according to claim 5, characterized in that, The outer protective positioning component (5) includes an inner groove (24) located in the semi-circular locking ring (19), with elastic sealing rings (25) integrally connected on both sides of the inner groove (24), and an outer rubber ring (26) located outside the elastic sealing ring (25) inside the semi-circular locking ring (19).

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