Anti-falling flange joint

Abstract

The utility model discloses an anti-falling flange joint which comprises a main pipe body and flanges fixed at the two ends of the main pipe body, a positioning ring is fixed in the middle of the main pipe body, a plurality of inserting grooves are formed in the outer wall of the positioning ring at equal intervals, and an anti-falling mechanism is installed in each inserting groove. The anti-falling mechanism comprises an inserting rod, the inserting rod is slidably connected into the inserting groove, the upper end of the inserting rod is fixedly connected with a mounting disc, the two ends of the mounting disc are fixedly connected with positioning rods, the two positioning rods are located on the same straight line and are parallel to the main pipe body, and sleeves are slidably connected to the peripheries of the positioning rods; the end, away from the mounting disc, of the sleeve is connected with a U-shaped plate with an opening facing the main pipe body, and a clamping part is arranged in the U-shaped plate. The edges of the two flanges are wrapped by the U-shaped plate, and then the two flanges are clamped through the clamping parts, so that the two adjacent flanges are further fixed, and the connection stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, specifically to a flange joint that prevents detachment. Background Technology

[0002] Flanges are critical components used to connect pipes, valves, equipment, or other piping systems. They provide a sealed and structurally stable connection, enabling piping systems to operate safely and efficiently.

[0003] However, current flanges are generally only fixed by bolts. But bolts are exposed to the outside for a long time, which makes them prone to corrosion or loosening, resulting in loosening or even falling off between adjacent flanges. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a flange joint that prevents detachment, so as to solve the problem that adjacent flanges are easy to detach due to the easy loosening of bolts.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A flange joint designed to prevent detachment includes a main body and flanges fixing both ends of the main body. A positioning ring is fixed in the middle of the main body, and a plurality of slots are equidistantly provided on the outer wall of the positioning ring. Each slot is equipped with an anti-detachment mechanism. The anti-detachment mechanism includes a rod that is slidably connected to the slot. An installation plate is fixedly connected to the upper end of the rod, and positioning rods are fixedly connected to both ends of the installation plate. The two positioning rods are in a straight line and parallel to the main body. A sleeve is slidably connected to the periphery of the positioning rods. A U-shaped plate with an opening facing the main body is connected to the end of the sleeve away from the installation plate. A clamping part is provided inside the U-shaped plate.

[0007] Preferably, the positioning ring has first screw holes on both sides of each slot that communicate with the slot, and the insertion rod has several second screw holes. After the insertion rod is inserted into the slot, it is fixed to the positioning ring by the cooperation of bolts, first screw holes and second screw holes.

[0008] By removing the bolts on the positioning ring using the above technical solution, the insert rod can be slid upwards to adjust the vertical position of the U-shaped plate and the flange.

[0009] Preferably, the positioning rod has several third screw holes, and the sleeve has several fourth screw holes that mate with the third screw holes. After the sleeve slides on the positioning rod, it is fixed to the positioning rod by the cooperation of bolts, third screw holes and fourth screw holes.

[0010] By removing the bolts on the sleeve, the sleeve can be slid outwards to adjust the horizontal position of the U-shaped plate and the flange.

[0011] Preferably, the clamping part includes screws threaded to both sides of the U-shaped plate, clamping plates connected to the opposite ends of the two screws, and handles connected to the opposite ends of the two screws. The clamping plates are located inside the U-shaped plate, and the handles are located outside the U-shaped plate. Rubber pads are fixed to the opposite ends of the two clamping plates of the same clamping part.

[0012] With the above technical solution, when the U-shaped plate is wrapped between two adjacent flanges, turning the handle will drive the screw to rotate, which will drive the clamping plate to move and clamp the two adjacent flanges together, thus stabilizing the flanges.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The connector described in this utility model is used to connect adjacent pipes, which also have flanges welded on them. During connection, the flanges on this utility model are fixed to the flanges on the pipes with bolts. Then, the insert rod is pulled upwards while the sleeve is pulled outwards, so that the U-shaped plate reaches above the two flanges. Then, the insert rod is pushed downwards so that the U-shaped plate covers the edges of the two flanges. Finally, the two flanges are clamped by the clamping part, thereby further fixing the two adjacent flanges and improving the stability of the connection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] Figure 2 A cross-sectional view of the anti-detachment mechanism;

[0017] Figure 3 This is a schematic diagram of the present invention after being connected to a pipeline;

[0018] Figure 4 This is a side view of the U-shaped plate covering the outer edge of the flange.

[0019] Figure 5 This is a cross-sectional view of two adjacent flanges covered by a U-shaped plate.

[0020] In the diagram: 1-Main pipe, 2-Flange, 3-Positioning ring, 4-Slot, 5-Anti-detachment mechanism, 501-Insertion rod, 502-Mounting plate, 503-Positioning rod, 504-Sleeve, 505-U-shaped plate, 506-Second screw hole, 507-Third screw hole, 508-Fourth screw hole, 509-Screw, 510-Clamping plate, 512-Rubber pad, 6-First screw hole, 7-Pipe to be connected. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Please see Figure 1-5 A flange connector for preventing detachment includes a main body 1 and flanges 2 fixed at both ends of the main body. Flanges 2 have flange holes. A positioning ring 3 is fixed in the middle of the main body 1. A number of slots 4 are equally spaced on the outer wall of the positioning ring 3. Each slot 4 is equipped with an anti-detachment mechanism 5.

[0024] The anti-detachment mechanism 5 includes a rod 501, which is slidably connected to the slot 4. The positioning ring 3 has first screw holes 6 on both sides of each slot 4, communicating with the slot. The rod 501 has several second screw holes 506. After the rod 501 is inserted into the slot 4, it is fixed to the positioning ring 3 by the cooperation of bolts, the first screw holes, and the second screw holes. Removing the bolts from the positioning ring 3 allows the rod 501 to slide upwards, adjusting the vertical position of the U-shaped plate 505 relative to the flange, thereby bringing the U-shaped plate 505 above the flange.

[0025] The upper end of the insertion rod 501 is fixedly connected to the mounting plate 502, and both ends of the mounting plate 502 are fixedly connected to the positioning rods 503. The two positioning rods 503 are in a straight line and parallel to the main body 1. A sleeve 504 is slidably connected to the periphery of the positioning rods 503. Several third screw holes 507 are opened on the positioning rods 503, and several fourth screw holes 508 that mate with the third screw holes are opened on the sleeve 504. After the sleeve 504 slides on the positioning rods 503, it is fixed to the positioning rods 503 by the cooperation of bolts, third screw holes and fourth screw holes. By removing the bolts on the sleeve 504, the sleeve 504 can be slid outward to adjust the horizontal position of the U-shaped plate 505 and the flange, so that the U-shaped plate 505 reaches above the flange.

[0026] The sleeve 504, at its end furthest from the mounting plate, is connected to a U-shaped plate 505 with an opening facing the main body 1. The U-shaped plate 505 contains a clamping part. The clamping part includes screws 509 threaded to both sides of the U-shaped plate, clamping plates 510 connected to opposite ends of the two screws, and a handle 511 connected to opposite ends of the two screws. The clamping plates 510 are located inside the U-shaped plate 505, and the handle 511 is located outside the U-shaped plate 505. When the U-shaped plate 505 covers two adjacent flanges, rotating the handle 511 rotates the screws 509, thereby moving the clamping plates 510 and clamping the two adjacent flanges together, thus stabilizing the flanges.

[0027] The working principle of this embodiment is as follows:

[0028] In this embodiment, flange 2 is used to connect with pipe 7 to be connected. Pipe 7 to be connected also has a flange welded on it. During connection, flange 2 of this utility model is fixed to the flange on the pipe to be connected by bolts. Then, the insert rod 501 is pulled upward and the sleeve 504 is pulled outward at the same time so that the U-shaped plate 505 reaches above the two flanges. Then, the insert rod 501 is pushed downward so that the U-shaped plate 505 covers the edges of the two flanges. The bolts on the positioning ring 3 and the sleeve 504 are tightened to keep the sleeve 504 and the insert rod 501 stable. Then, the two flanges are clamped by the clamping part to further fix the two adjacent flanges and improve the stability of the connection.

[0029] To improve the stability of the connection between this utility model and the pipe 7 to be connected, multiple sets of anti-detachment mechanisms 5 can be inserted into the slot 4 of the positioning ring 3, and the two adjacent flanges can be clamped by multiple sets of U-shaped plates and clamping parts.

[0030] The connector described in this embodiment is made entirely of stainless steel and is suitable for use in corrosion-resistant environments.

[0031] Example 2

[0032] Based on Embodiment 1, rubber pads 512 are fixed to the opposite ends of the two clamping plates 510 in the same clamping part. When the clamping plates clamp the flange, the rubber pads contact the flange, which can reduce wear on the flange surface.

[0033] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] 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 pull-resistant flanged joint, characterized by: The utility model provides a kind of positioning ring and anti-falling mechanism for main pipe, including main pipe (1), flange (2) fixed in both ends of main pipe, the middle part of main pipe (1) is fixed with positioning ring (3), the outer wall of positioning ring (3) is equidistantly provided with several insertion slots (4), and anti-falling mechanism (5) is mounted in each insertion slot (4); The anti-falling mechanism (5) includes a plug rod (501) slidingly connected in the insertion slot (4), the upper end of the plug rod (501) is fixedly connected with a mounting disc (502), the two ends of the mounting disc (502) are fixedly connected with positioning rods (503), the two positioning rods (503) are in the same straight line and parallel to the main pipe (1), the outer periphery of the positioning rod (503) is slidingly connected with a sleeve (504), the end of the sleeve (504) away from the mounting disc is connected with a U-shaped plate (505) opening towards the main pipe (1), and the U-shaped plate (505) is provided with a clamping portion.

2. A pull-resistant flanged joint as defined in claim 1, wherein: The positioning ring (3) is provided with first screw holes (6) on both sides of each insertion slot, the plug rod (501) is provided with second screw holes (506), and the plug rod (501) is fixed on the positioning ring (3) by bolts, the first screw holes and the second screw holes after being inserted into the insertion slot (4).

3. A pull-resistant flanged joint as defined in claim 2, wherein: The positioning rod (503) is provided with third screw holes (507), and the sleeve (504) is provided with fourth screw holes (508) matched with the third screw holes, and the sleeve (504) is fixed on the positioning rod (503) by bolts, the third screw holes and the fourth screw holes after being slidingly connected on the positioning rod (503).

4. A pull-resistant flanged joint as defined in claim 3, wherein: The clamping portion includes screw rods (509) threadedly connected on both sides of the U-shaped plate, clamping plates (510) connected on opposite ends of the two screw rods, and handles (511) connected on opposite ends of the two screw rods, the clamping plates (510) are located inside the U-shaped plate (505), and the handles (511) are located outside the U-shaped plate (505).

5. A pull resistant flange joint according to claim 4, wherein: The opposite ends of the two clamping plates (510) of the same clamping portion are fixed with rubber pads (512).

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