Flange with self-locking function

Abstract

The flange with the self-locking function comprises a flange body and a connecting pipe, internal threads are arranged in the center of the flange body, external threads are arranged at the position of the connecting pipe, two side seats are symmetrically arranged on the connecting pipe, limiting holes are formed in the side seats, two limiting seats are symmetrically fixed to the flange body, and the two limiting seats are arranged on the flange body. A limiting column is arranged on the limiting seat in a penetrating mode, a limiting plate is fixed to one end of the limiting column, the side seat is welded to the surface of the connecting pipe, anti-rust coatings are sprayed to the positions of the internal threads and the external threads, and the end, away from the limiting plate, of the limiting column is arranged to be in a wedge shape and is subjected to round corner treatment. The self-locking flange solves the problems that an existing flange is connected with a pipeline only through self-locking of threads, the threads are likely to be abraded after the flange is used for a long time, then connection of the flange is loosened, and the sealing performance is affected. The self-locking flange solves the problems that the existing flange is connected with the pipeline only through self-locking of the threads, and the threads are likely to be abraded after the flange is used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flange, especially a flange with self-locking function. BACKGROUND

[0002] The screw flange (threaded flange) is a kind of flange structure connected by internal and external thread screwing, and its core feature is that it does not need welding or flange bolt fixation, and directly relies on thread engagement and sealing material sealing.

[0003] However, the screw flange is connected with the pipeline only by the self-locking of the thread during use, which may cause thread wear after long-term use, and further cause loose connection and affect the sealing performance.

[0004] Therefore, it is necessary to provide a new flange with self-locking function to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the utility model provides a flange with self-locking function, which solves the problem that the existing flange is connected with the pipeline only by the self-locking of the thread, which may cause thread wear after long-term use, and further cause loose connection and affect the sealing performance.

[0006] The flange with self-locking function provided by the utility model comprises a flange body and a connecting pipe, the center of the flange body is provided with an internal thread, and the connecting pipe is provided with an external thread.

[0007] Two side seats are symmetrically arranged on the connecting pipe, and a limiting hole is formed in the side seat.

[0008] Two limiting seats are symmetrically fixed on the flange body, a limiting column is penetratingly arranged on the limiting seat, and a limiting plate is fixed at one end of the limiting column.

[0009] In a preferred embodiment, the side seat is welded on the surface of the connecting pipe.

[0010] In a preferred embodiment, the internal thread and the external thread are both sprayed with an anti-rust coating.

[0011] In a preferred embodiment, the end of the limiting column away from the limiting plate is wedge-shaped and is rounded.

[0012] In a preferred embodiment, a return spring is sleeved on the limiting column, one end of the return spring is fixed on the limiting plate, and the other end of the return spring is fixed on the limiting seat.

[0013] In a preferred embodiment, the side seat edge is rounded, so that the side seat edge and the connecting pipe connecting part are curved surfaces.

[0014] The utility model discloses beneficial effect:

[0015] When using, staff only needs to insert the head with external thread of connecting pipe to the center of flange body, and when connecting pipe meets the limiting column, the limiting column will move, at this time, the reset spring is compressed, and rotating the connecting pipe makes the flange body and the connecting pipe be connected together through thread, when the limiting column and the limiting hole are located in the same plane, the limiting column enters the inside of the limiting hole under the action of reset spring, and the operation is simple and convenient, and the connecting strength between the flange body and the connecting pipe is greatly improved.

[0016] And under the action of reset spring, the connection between the flange body and the connecting pipe has high self-locking, which avoids the connection loosening of the flange body and the connecting pipe when using. DRAWINGS

[0017] Figure 1 The utility model provides a main structure solid view of flange with self -locking function Figure 1 ;

[0018] Figure 2 The utility model provides a main structure solid view of flange with self -locking function Figure 2 ;

[0019] Figure 3 The utility model provides the structure view of limiting seat.

[0020] Marked number in drawing: 1, flange body;2, connecting pipe;3, internal thread;4, external thread;5, side seat;6, limiting hole;7, limiting seat;8, limiting column;9, limiting plate;10, reset spring. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and implementation.

[0022] Please combine with Figure 1 、 Figure 2 and Figure 3 , wherein Figure 1 The utility model provides a main structure solid view of flange with self -locking function Figure 1 ; Figure 2 The utility model provides a main structure solid view of flange with self -locking function Figure 2 ; Figure 3 The utility model provides the structure view of limiting seat.

[0023] In the specific implementation process, like Figures 1-3As shown, including flange body 1 and connecting pipe 2, flange body 1 center is provided with internal thread 3, connecting pipe 2 is provided with external thread 4, connecting pipe 2 is provided with two symmetrical side seats 5, side seat 5 is welded on the surface of connecting pipe 2, ensure the connection strength between side seat 5 and connecting pipe 2, internal thread 3 and external thread 4 are sprayed with anti-rust coating, improve its service life.

[0024] Limiting hole 6 is formed in side seat 5, two limiting seats 7 are fixed on flange body 1, limiting column 8 is arranged through limiting seat 7, limiting plate 9 is fixed on one end of limiting column 8, the other end of limiting column 8 is wedge-shaped and is chamfered, when connecting pipe 2 presses limiting column 8, limiting column 8 can slide, reset spring 10 is sleeved on limiting column 8, one end of reset spring 10 is fixed on limiting plate 9, the other end of reset spring 10 is fixed on limiting seat 7, when flange body 1 and connecting pipe 2 need to be combined together, one end of connecting pipe 2 with external thread 4 is inserted into the center of flange body 1, when connecting pipe 2 meets limiting column 8, limiting column 8 moves, at this time, reset spring 10 is compressed, rotating connecting pipe 2 makes flange body 1 and connecting pipe 2 be connected together through thread, when limiting column 8 and limiting hole 6 are in the same plane, limiting column 8 enters into limiting hole 6 under the action of reset spring 10, the edge of side seat 5 is chamfered, the edge of side seat 5 and the connecting part of connecting pipe 2 are curved, which is convenient for limiting column 8 to enter into limiting hole 6.

[0025] The working principle of the utility model is: when flange body 1 and connecting pipe 2 need to be combined together, one end of connecting pipe 2 with external thread 4 is inserted into the center of flange body 1, when connecting pipe 2 meets limiting column 8, limiting column 8 moves, at this time, reset spring 10 is compressed, rotating connecting pipe 2 makes flange body 1 and connecting pipe 2 be connected together through thread, when limiting column 8 and limiting hole 6 are in the same plane, limiting column 8 enters into limiting hole 6 under the action of reset spring 10, the connecting strength between flange body 1 and connecting pipe 2 is greatly improved, and the connection between flange body 1 and connecting pipe 2 has high self-locking under the action of reset spring 10, avoiding the connection loosening of flange body 1 and connecting pipe 2 in use.

[0026] The circuit and control involved in the utility model are prior art, and will not be described in detail here.

[0027] The above only describes the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A flange having a self-locking function, comprising a flange body (1) and a connecting pipe (2), characterized in that, The flange body (1) is provided with an inner thread (3) at the center, and the connecting pipe (2) is provided with an outer thread (4); Two side seats (5) are symmetrically arranged on the connecting pipe (2), and a limiting hole (6) is formed in the side seat (5); Two limiting seats (7) are symmetrically fixed on the flange body (1), a limiting column (8) is arranged through the limiting seat (7), and a limiting plate (9) is fixed at one end of the limiting column (8).

2. The flange having a self-locking function according to claim 1, wherein The side seat (5) is welded on the surface of the connecting pipe (2).

3. The flange with self-locking function according to claim 2, characterized in that, The inner thread (3) and the outer thread (4) are both sprayed with a rust-proof coating.

4. The flange with self-locking function according to claim 3, characterized in that, The end of the limiting column (8) away from the limiting plate (9) is wedge-shaped and is chamfered.

5. The flange with self-locking function according to claim 4, characterized in that, A reset spring (10) is sleeved on the limiting column (8), one end of the reset spring (10) is fixed on the limiting plate (9), and the other end of the reset spring (10) is fixed on the limiting seat (7).

6. The flange with self-locking function according to claim 5, characterized in that, The edge of the side seat (5) is chamfered, so that the edge of the side seat (5) and the connecting part of the connecting pipe (2) are curved.

Images