Sealing joint device for steel pipe connection

Abstract

The utility model discloses a sealing joint device for steel pipe connection, including the connecting joint, the connecting joint one side is provided with the pipeline body, be provided with sealing connection mechanism between the connecting joint and pipeline body, sealing connection mechanism includes fixed ring, movable rod, first connection flange, rubber connecting hose, second connection flane, the one end fixed setting of pipeline body is close to the connecting joint has the fixed ring, the movable rod is set up and is inserted around the outer side surface of fixed ring and moves, the one end fixed setting of movable rod is away from the fixed ring has the first connection flange, the first connection flange with fixed ring between fixed setting has the rubber connecting hose, the one end fixed setting of connecting joint is close to the pipeline body has the second connection flane. The utility model's flange sealing joint can allow a section of moving space, like this can be very convenient when overhauling or replacing the sealing ring to the flange connecting place, thereby can be convenient for using widely.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, specifically to a sealing joint device for steel pipe connection. Background Technology

[0002] In pipeline engineering, steel pipes are widely used in various fields such as water supply and drainage, oil and gas transportation, and industrial fluid transmission due to their high strength and high stability. The connection quality of steel pipes directly determines the sealing performance, safety, and service life of the entire pipeline system, and the performance of sealing joints, as the core component of steel pipe connections, is of paramount importance.

[0003] In existing technologies, commonly used sealing joints for steel pipe connections mainly include threaded connections, flange connections, and socket connections. This application primarily addresses improvements to flange-type pipe connections. Traditional flange connections are stable, reliable, and have good sealing performance. However, in scenarios where both ends of a pipe are connected by flanges, leaving no room for lateral movement, inspecting the pipe's interior or replacing the flange seals requires disassembling both ends of the pipe, a cumbersome process. Therefore, an improved sealing joint device for steel pipe connections is needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a sealing joint device for steel pipe connection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing joint device for steel pipe connection, including a connecting joint, a pipe body is provided on one side of the connecting joint, and a sealing connection mechanism is provided between the connecting joint and the pipe body. The sealing connection mechanism includes a fixed ring, a movable rod, a first connecting flange, a rubber connecting hose, and a second connecting flange. A fixed ring is fixedly provided at one end of the pipe body near the connecting joint. A movable rod is movably inserted around the outer surface of the fixed ring. A first connecting flange is fixedly provided at one end of the movable rod away from the fixed ring. A rubber connecting hose is fixedly provided between the first connecting flange and the fixed ring. A second connecting flange is fixedly provided at one end of the connecting joint near the pipe body.

[0006] Preferably, a limit block is fixedly provided at the end of the movable rod away from the first connecting flange, which can prevent the movable rod from falling off the surface of the fixed ring.

[0007] Preferably, a shield is movably fitted on the outer surface of the connecting joint so that the shield can slide left and right at the upper end of the connecting joint. Magnetic blocks are fixedly arranged around the outer surface of the shield. After the first connecting flange and the second connecting flange are fixed, the shield can slide and then be fixed by the magnetic blocks. At this time, the shield can cover the connection between the first connecting flange and the second connecting flange. If a leak is detected, the shield can collect the liquid.

[0008] Preferably, a liquid level detection device is fixedly installed at the lower end of the interior of the shield. As soon as a leak is found at the connection between the first connecting flange and the second connecting flange, the liquid will flow into the interior of the shield immediately. If the liquid level detection device detects an electrical signal at this time, it indicates that a leak has been found at the flange connection and needs to be dealt with in time. The liquid level detection device in this device can be a contact-type liquid level detection device. When there is liquid that can form a circuit, a leak can be determined.

[0009] Preferably, a sealing ring is provided on the side of the shield near the first connecting flange, which can improve the sealing performance of the shield when the shield is magnetically attached to the outer surface of the first connecting flange.

[0010] Preferably, the outer surfaces of the first connecting flange and the second connecting flange are evenly provided with a plurality of mounting holes. The first connecting flange and the second connecting flange can be easily fixedly connected by screws through the mounting holes, thus achieving a sealing connection; this is consistent with the flange connection structure in the prior art.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the cooperation of the movable rod and the fixed ring, and the telescopic characteristics of the rubber connecting hose, allows the first connecting flange to move a certain distance relative to the pipe body, reserving space for movement at the flange connection. When it is necessary to inspect the inside of the pipe or replace the sealing ring, it is not necessary to disassemble all the connections at both ends of the pipe. Simply loosen the fixing screws between the first and second connecting flanges, and push the first connecting flange to obtain sufficient operating space, greatly simplifying the maintenance process and reducing maintenance difficulty and workload.

[0013] 2. This utility model shield not only collects leaked liquid, but its internal liquid level detection device can realize real-time detection and alarm of leaks, solving the problem that leaks in traditional flange connections are difficult to detect in a timely manner, and providing dual protection for the safe operation of pipeline systems. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of the sealing joint device for steel pipe connection of this utility model;

[0015] Figure 2 This is an installation view of the first connecting flange and the second connecting flange in the sealing joint device for steel pipe connection of this utility model;

[0016] Figure 3 This is an installation view of the shield in the sealing joint device for steel pipe connection of this utility model;

[0017] Figure 4 For the sealing joint device for steel pipe connection of this utility model Figure 3 A sectional view;

[0018] Figure 5 This utility model relates to a sealing joint device for steel pipe connections. Figure 4 A magnified view of point A in the middle.

[0019] In the diagram: 1. Connecting joint; 2. Pipe body; 3. Sealing connection mechanism; 31. Fixing ring; 32. Movable rod; 33. First connecting flange; 34. Rubber connecting hose; 35. Second connecting flange; 4. Limiting block; 5. Shielding cover; 6. Magnetic block; 7. Liquid level detection device; 8. Sealing ring; 9. Mounting hole. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a sealing joint device for steel pipe connection, including a connecting joint 1, a pipe body 2 is provided on one side of the connecting joint 1, and a sealing connection mechanism 3 is provided between the connecting joint 1 and the pipe body 2. The sealing connection mechanism 3 includes a fixed ring 31, a movable rod 32, a first connecting flange 33, a rubber connecting hose 34, and a second connecting flange 35. The fixed ring 31 is welded and fixed to one end of the pipe body 2 near the connecting joint 1. Three movable rods 32 are evenly inserted around the outer surface of the fixed ring 31. The first connecting flange 33 is welded and fixed to one end of the movable rod 32 away from the fixed ring 31. A rubber connecting hose 34 is fixedly provided between the first connecting flange 33 and the fixed ring 31. The second connecting flange 35 is welded and fixed to one end of the connecting joint 1 near the pipe body 2.

[0022] A limiting block 4 is integrally formed at the end of the movable rod 32 away from the first connecting flange 33. The diameter of the limiting block 4 is 2mm larger than the diameter of the mating hole between the movable rod 32 and the fixing ring 31, effectively preventing the movable rod 32 from falling off. A stainless steel shield 5 is movably fitted on the outer surface of the connecting joint 1. Three magnetic blocks 6 are glued to the outer surface of the shield 5. A contact-type liquid level detection device 7 is fixed to the lower end of the shield 5 by a bracket. The two metal contacts of the liquid level detection device 7 extend to the outside of the shield 5 through wires and can be connected to an external alarm indicator light. A sealing ring 8 is embedded in the shield 5 near the first connecting flange 33 through a slot. Multiple mounting holes 9 are evenly opened on the outer surfaces of the first connecting flange 33 and the second connecting flange 35. The mounting holes 9 are adapted to M16 fixing bolts.

[0023] The working principle of this embodiment is as follows: When connecting the pipes, align the first connecting flange 33 with the second connecting flange 35, insert and tighten the fixing bolts through the mounting holes 9 to achieve a sealed connection between the pipe body 2 and the connecting joint 1; push the shield 5 to cover the flange connection, the magnetic block 6 is attracted and fixed to the first connecting flange 33, and the sealing ring 8 is squeezed to achieve a seal of the shield 5. When maintenance is required, loosen the fixing bolts. Since the movable rod 32 can move along the fixing ring 31 and the rubber connecting hose 34 is retractable, push the first connecting flange 33 away from the second connecting flange 35 to obtain sufficient operating space, thus facilitating use; if a leak occurs, the liquid flows into the interior of the shield 5, submerging the contacts of the liquid level detection device 7 to form a circuit, triggering the external alarm device, which can be handled by the staff in time.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.

[0025] 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 sealing joint device for steel pipe connection, comprising a connecting joint (1), characterized in that: A pipe body (2) is provided on one side of the connecting joint (1). A sealing connection mechanism (3) is provided between the connecting joint (1) and the pipe body (2). The sealing connection mechanism (3) includes a fixed ring (31), a movable rod (32), a first connecting flange (33), a rubber connecting hose (34), and a second connecting flange (35). A fixed ring (31) is fixedly provided at one end of the pipe body (2) near the connecting joint (1). A movable rod (32) is movably inserted around the outer surface of the fixed ring (31). A first connecting flange (33) is fixedly provided at one end of the movable rod (32) away from the fixed ring (31). A rubber connecting hose (34) is fixedly provided between the first connecting flange (33) and the fixed ring (31). A second connecting flange (35) is fixedly provided at one end of the connecting joint (1) near the pipe body (2).

2. The sealing joint device for steel pipe connection according to claim 1, characterized in that: A limit block (4) is fixedly installed at the end of the movable rod (32) away from the first connecting flange (33).

3. The sealing joint device for steel pipe connection according to claim 1, characterized in that: The outer surface of the connector (1) is movably fitted with a shield (5) so that the shield (5) can slide left and right on the upper end of the connector (1). Magnetic blocks (6) are fixedly arranged around the outer surface of the shield (5).

4. The sealing joint device for steel pipe connection according to claim 3, characterized in that: A liquid level detection device (7) is fixedly installed at the lower end of the inside of the shield (5).

5. The sealing joint device for steel pipe connection according to claim 3, characterized in that: The shield (5) is provided with a sealing ring (8) on the side near the first connecting flange (33).

6. The sealing joint device for steel pipe connection according to claim 1, characterized in that: The outer surfaces of the first connecting flange (33) and the second connecting flange (35) are evenly provided with a number of mounting holes (9).

Images