Anti-loosening flaring flange

Abstract

The utility model relates to the technical field of flanges, in particular to an anti-loosening flaring flange which comprises a first flaring flange body and a second flaring flange body, an elastic hanging piece is fixed to the surface of the first flaring flange body, a clamping groove is formed in the surface of the second flaring flange body, and after the first flaring flange body and the second flaring flange body are assembled, the elastic hanging piece is inserted into the clamping groove; the flaring flange has the advantages that the elastic hanging pieces are arranged on the surface of the first flaring flange, the clamping grooves are formed in the surface of the second flaring flange, when the first flaring flange and the second flaring flange abut against each other, the elastic hanging pieces are inserted into the corresponding clamping grooves, one ends of the L-shaped structures of the elastic hanging pieces are clamped in the clamping grooves, and the first flaring flange and the second flaring flange are effectively prevented from being separated. By means of the design, pre-limiting of the first flaring flange and the second flaring flange can be achieved when bolts are not installed, after the bolts are installed, connection stability is further enhanced, the possibility that the bolts are loosened due to factors such as vibration and temperature changes is greatly reduced, and safety and reliability of pipeline connection are improved.

Description

Technical Field

[0007]

[0001] The utility model relates to the field of flanges, and specifically to a flared flange for preventing loosening. Background Art

[0002] In the field of pipeline connection, as a common connection method, flared flanges are widely used in various industrial and civil scenarios. The traditional connection of flared flanges usually directly connects two flared flanges through bolts, clamping the ends of two pipelines in the middle to achieve pipeline connection and sealing.

[0003] However, in the actual application process, there are some obvious defects in the traditional connection of flared flanges. On the one hand, due to the pipeline may be affected by various factors such as vibration, temperature change, and medium pressure fluctuation during use, these factors may cause the bolts to loosen, resulting in gaps between the flared flanges, and then causing problems such as pipeline leakage. This not only affects the normal operation of the pipeline system, but may also cause waste of resources, environmental pollution and even safety accidents. On the other hand, when installing flared flanges, due to the lack of effective pre-limiting measures, before the bolts are installed, the two flared flanges are prone to relative movement or separation, which brings inconvenience to the installation work, increases the installation difficulty and time cost.

[0004] Therefore, it is of great practical significance to develop a flared flange that can effectively prevent loosening, improve connection tightness and facilitate installation. Content of the Utility Model

[0005] The purpose of the utility model is to provide a flared flange for preventing loosening to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A flared flange for preventing loosening, including flared flange one and flared flange two. Flared flange one and flared flange two are respectively sleeved on the pipe bodies of two pipelines, and flared flange one and flared flange two are connected by bolts. An elastic hanging piece is fixed on the surface of flared flange one, and a clamping groove is formed on the surface of flared flange two. After flared flange one and flared flange two are assembled, the elastic hanging piece is inserted into the clamping groove. <​​​​​​Preferably, both the first and second flared flanges have an insert groove on their surfaces. The insert groove is an annular groove, and a second sealing gasket is fixed inside the insert groove. The width of the second sealing gasket is greater than the depth of the insert groove.

[0010] Preferably, the slot is an "L" shaped slot, and slots are provided on the top and bottom surfaces of both the flared flange one and the flared flange two. The elastic hanger has an "L" shaped plate structure, and one end of the elastic hanger has a bevel. After the flared flange one and the flared flange two are assembled, the elastic hanger is inserted into the corresponding slot.

[0011] Preferably, one end of the elastic tab has a squeezing groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The anti-loosening flared flange proposed in this utility model features an elastic hanger on the surface of flared flange one and a retaining groove on the surface of flared flange two. When flared flange one and flared flange two are brought together, the elastic hanger inserts into the corresponding groove, and one end of its "L"-shaped structure is locked in the groove, effectively preventing flared flange one and flared flange two from separating. This design can achieve pre-limiting of flared flange one and flared flange two even without bolts installed, and further enhances the stability of the connection after bolts are installed, greatly reducing the possibility of bolt loosening due to vibration, temperature changes, and other factors, thus improving the safety and reliability of pipeline connections. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view of the structure of this utility model;

[0016] Figure 3 for Figure 2 Sectional view of the structure at point AA;

[0017] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 5 This is a schematic diagram of the structure of the flared flange of this utility model;

[0019] Figure 6 This is a schematic diagram of the second structure of the flared flange of this utility model.

[0020] In the diagram: 1. Flange 1, 2. Flange 2, Pipe, 3. Gasket 1, 4. Bolt hole, 5. Bolt, 6. Mounting groove, 7. Gasket 2, 8. Slot, 9. Elastic hanger, 10. Picking groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-6 This utility model provides a technical solution: an anti-loosening flared flange, including a flared flange one 1 and a flared flange two 2, which are respectively fitted onto the pipe bodies of two pipes 3, and are connected by bolts 6. The inner ring openings of both flared flange one 1 and flared flange two 2 are convex-shaped round openings. Bolt holes 5 are opened on the surface of both flared flange one 1 and flared flange two 2, and the bolts 6 are locked after passing through the bolt holes 5 on the surface of flared flange one 1 and flared flange two 2. A sealing gasket one 4 is fixed in the inner ring opening of both flared flange one 1 and flared flange two 2. The sealing gasket one 4 is a circular plate, and the sealing gasket one 4 is clamped between the end of the pipe 3 and the inner ring opening of flared flange one 1. After pre-installing flared flange 1 and flared flange 2 on the two pipes 3 respectively, when the ends of the two pipes 3 are close together, bolts 6 are passed through the bolt holes 5 on the surfaces of flared flange 1 and flared flange 2. After tightening the bolts 6, flared flange 1 and flared flange 2 are tightly close together, and at this time the end of the pipe 3 is tightly clamped in the inner ring of flared flange 1 and flared flange 2, holding the sealing gasket 4, to ensure the sealing of the two pipes 3 after connection.

[0023] Both flared flange 1 and flared flange 2 have an insert groove 7 on their surfaces. The insert groove 7 is an annular groove, and a sealing gasket 2 8 is fixed inside the insert groove 7. The width of the sealing gasket 2 8 is greater than the depth of the insert groove 7. After flared flange 1 and flared flange 2 2 are connected by bolts 6, the sealing gasket 2 8 is clamped between flared flange 1 and flared flange 2 2, ensuring the sealing performance after the connection of flared flange 1 and flared flange 2 2.

[0024] The surface of the flared flange 1 is fixed with an elastic hanging piece 10, and the surface of the flared flange 2 is provided with a slot 9. After the flared flange 1 and the flared flange 2 are assembled, the elastic hanging piece 10 is inserted into the slot 9. The slot 9 is an "L" shaped groove. The top and bottom surfaces of the flared flange 1 and the flared flange 2 are both provided with slots 9. The elastic hanging piece 10 has an "L" shaped plate structure. One end of the elastic hanging piece 10 is provided with a bevel. After the flared flange 1 and the flared flange 2 are assembled, the elastic hanging piece 10 is inserted into the corresponding slot 9. One end of the elastic hanging piece 10 is provided with a snagging groove 11. When flared flange 1 and flared flange 2 are brought together, the elastic hanger 10 is inserted into the corresponding slot 9. One end of the elastic hanger 10 is locked in the slot 9 to prevent flared flange 1 and flared flange 2 from separating. This achieves the pre-limiting of flared flange 1 and flared flange 2 when bolts 6 are not installed, and also prevents loosening after flared flange 1 and flared flange 2 are connected.

[0025] The method of using this anti-loosening flared flange is as follows: Fix gasket 4 into the inner ring of flared flange 1 and flared flange 2 respectively. Gasket 4 is a circular annular plate; after installation, ensure its position is stable and it will not easily fall off. Fix gasket 8 into the mounting groove 7 on the surface of flared flange 1 and flared flange 2. The mounting groove 7 is an annular groove, and the width of gasket 8 must be greater than the depth of the mounting groove 7 to ensure a good seal after installation. Place flared flange 1 and flared flange 2 onto the pipe bodies of the two pipes 3 respectively, paying attention to the direction and position to ensure smooth connection during subsequent assembly. Bring the ends of the two pipes 3 together, bringing flared flange 1 and flared flange 2 closer together. As flared flange 1 and flared flange 2 approach each other, the elastic hanger 10 on the surface of flared flange 1 (the elastic hanger 10 has an "L"-shaped plate structure with a bevel at one end) inserts into the corresponding groove 9 on the surface of flared flange 2 (the groove 9 is an "L"-shaped groove, and grooves 9 are provided on both the top and bottom surfaces of flared flange 1 and flared flange 2). After the elastic hanger 10 is inserted, one end will be locked in the groove 9, thus preventing flared flange 1 and flared flange 2 from separating and achieving the pre-limiting position of flared flange 1 and flared flange 2. Bolts 6 are passed through the bolt holes 5 on the surfaces of flared flange 1 and flared flange 2, with the bolt holes 5 corresponding to each other to ensure that bolts 6 can pass through smoothly. Using appropriate tools, bolts 6 are tightened to bring flared flange 1 and flared flange 2 tightly together. At this point, the end of pipe 3 will be tightly clamped in the inner ring of flared flange 1 and flared flange 2, holding gasket 4 in place to ensure the seal after the two pipes 3 are connected. Simultaneously, gasket 8 is held between flared flange 1 and flared flange 2, further ensuring the seal after their connection. Check the connection of flared flange 1 and flared flange 2, ensuring that bolt 6 is properly tightened and elastic clip 10 is securely in the groove 9 without any loosening. Also check that gasket 4 and gasket 8 provide a good seal without any leakage. If it is necessary to disassemble the anti-loosening flared flange, first loosen bolt 6, then use the slot 11 at one end of elastic clip 10 to pry it out of the groove 9, and finally remove flared flange 1 and flared flange 2 from pipe 3.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A loose-proof flared flange, comprising a flared flange one (1) and a flared flange two (2), the flared flange one (1) and the flared flange two (2) are respectively sleeved on the pipe bodies of two pipes (3), and the flared flange one (1) and the flared flange two (2) are connected through bolts (6), characterized in that: The surface of the flared flange one (1) is fixed with an elastic hanging piece (10), the surface of the flared flange two (2) is provided with a clamping groove (9), after the flared flange one (1) and the flared flange two (2) are assembled, the elastic hanging piece (10) is inserted into the clamping groove (9). ​ 2. A locking flange according to claim 1 wherein: The inner ring mouth of the flared flange one (1) and the flared flange two (2) is a "convex" round mouth, the surface of the flared flange one (1) and the flared flange two (2) is provided with a bolt hole (5), and the bolt (6) is locked after penetrating the bolt hole (5) on the surface of the flared flange one (1) and the flared flange two (2).

3. A locking flange according to claim 1 wherein: The inner ring mouth of the flared flange one (1) and the flared flange two (2) is fixed with a sealing gasket one (4), the sealing gasket one (4) is a circular ring plate, and the sealing gasket one (4) is clamped between the end of the pipeline (3) and the inner ring mouth of the flared flange one (1).

4. A locking flange according to claim 1 wherein: The surface of the flared flange one (1) and the flared flange two (2) is provided with an embedded groove (7), the embedded groove (7) is an annular groove, the embedded groove (7) is fixed with a sealing gasket two (8), and the width of the sealing gasket two (8) is greater than the depth of the embedded groove (7).

5. A locking flange according to claim 1 wherein: The clamping groove (9) is an "L" shaped groove, the top surface and the bottom surface of the flared flange one (1) and the flared flange two (2) are provided with the clamping groove (9), the elastic hanging piece (10) is an "L" shaped plate structure, one end of the elastic hanging piece (10) is provided with an inclined surface, and after the flared flange one (1) and the flared flange two (2) are assembled, the elastic hanging piece (10) is inserted into the corresponding clamping groove (9).

6. A locking flange according to claim 1 wherein: One end of the elastic hanging piece (10) is provided with a scraping groove (11).

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