Bimetal composite steel pipe easy and rapid to assemble

Abstract

The utility model discloses a bimetal composite steel pipe easy to quickly assemble, which comprises an inner-layer pipe and a base-layer pipe, a second mounting ring is mounted on one side of the base-layer pipe, and a groove is formed inside one side of the second mounting ring. The second flange ring is fixed to the side edge of the base layer pipe, the insertion groove is formed in the second flange ring, the sealing ring is installed on the inner wall of the insertion groove, and then in the assembling process, the inner layer pipe penetrates through the interior of the insertion groove and reaches the interior of the base layer pipe till the third flange ring is intercepted outside. Meanwhile, after the third flange ring reaches the side edge position of the second flange ring, the second flange ring and the third flange ring are connected and installed through bolts, meanwhile, the tail of the inner layer pipe is limited through a groove of the second installation ring, and meanwhile, the embedded block is embedded into the tail end of the inner layer pipe; in this way, bottom limiting is formed, and therefore the overall assembling capacity is well improved in the working process.

Description

Technical Field

[0001] The utility model relates to the technical field of bimetallic composite steel pipes, in particular to a bimetallic composite steel pipe which is easy to assemble quickly. Background Art

[0002] Bimetallic composite steel pipe is a pipe made of two layers of different materials, usually composed of an inner steel pipe and an outer stainless steel pipe. Bimetallic composite steel pipe has both the good mechanical properties of the inner steel pipe and the corrosion resistance and aesthetics of the outer stainless steel pipe. Therefore, it is widely used in petrochemical, electric power, metallurgy and other industries.

[0003] When connecting bimetallic composite steel pipes, it is generally necessary to insert the inner pipe into the outer pipe. If the two ends are welded for assembly and fixation, it is easy to affect the assembly efficiency during the work process, and it is difficult to grasp the spot welding position positioning effect between the two pipes, which is easy to affect the welding effect. This overall operation is easy to bring inconvenience to the staff. Utility Model Content

[0004] The purpose of the utility model is to provide a bimetallic composite steel pipe that is easy to assemble quickly, so as to solve the problem proposed in the above background technology that if the two-end welding method is used for assembly and fixation, it is easy to affect the assembly work efficiency during the work process, and it is difficult to grasp the spot welding position positioning effect between the two pipes, which is easy to affect the welding effect. This overall operation is easy to bring inconvenience to the staff.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bimetallic composite steel pipe that is easy to assemble quickly, comprising an inner layer tube and a base tube, a second mounting ring is installed on one side of the base tube, a second flange ring is installed on the other side of the base tube, an installation slot is provided inside the second flange ring, a sealing ring is fixed to the inner wall of the installation slot, a third flange ring is fixed on one side of the inner layer tube, and a groove is provided inside one side of the second mounting ring.

[0006] Preferably, the sealing ring is adhesively fixed to the inner wall of the installation slot, and the outer diameter of the inner tube is smaller than the inner diameter of the installation slot.

[0007] Preferably, the outer diameter of the third flange ring is larger than the outer diameter of the mounting slot, and the third flange ring and the second flange ring are connected and installed by bolts.

[0008] Preferably, a threaded connection groove is provided inside the second mounting ring, a threaded end is connected inside the threaded connection groove, and an insert is fixed on one side of the threaded end.

[0009] Preferably, the outer dimension of the insert is smaller than the inner diameter of the inner tube, and a bottom positioning piece is fixed to one side of the threaded end.

[0010] Preferably, baffles are fixed to the top and bottom ends of the insert, and a threaded connection is formed between the threaded end and the threaded connection groove.

[0011] Preferably, a reinforcing plate is fixed inside the base tube, a reinforcing seat is installed at one end of the reinforcing plate, an arc groove is opened inside the reinforcing seat, a reinforcing ball block is installed inside the arc groove, and connecting rods are installed on both sides of the reinforcing seat.

[0012] Preferably, the reinforcement seats are evenly distributed on the end surface of the reinforcement plate, and the connecting rods are symmetrically distributed about the central axis of the reinforcement seats.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the bimetallic composite steel pipe that is easy to assemble quickly not only improves the assembly capability, but also improves the use strength and bottom adaptability of the bimetallic composite steel pipe;

[0014] (1) The second flange ring is fixed to the side of the base tube, the installation slot is opened inside the second flange ring, and the sealing ring is installed on the inner wall of the installation slot. Then, during assembly, the inner tube is passed through the inside of the installation slot to reach the inside of the base tube until the third flange ring is intercepted outside. At this time, the sealing ring plays a sealing connection effect. At the same time, after the third flange ring reaches the side position of the second flange ring, bolts are used to connect and install between the second flange ring and the third flange ring. At the same time, the tail of the inner tube is limited by the groove of the second installation ring, and the insert is embedded in the tail end of the inner tube, thereby forming a bottom limit, thereby better improving the overall assembly ability during the work process;

[0015] (2) The reinforcing plate is fixed inside the base tube, and then the reinforcing seats are evenly distributed on the end surface of the reinforcing plate. Then, the arc groove is opened inside the reinforcing seat, and the reinforcing ball block is used to assist the load-bearing between the two. The connecting rod improves the connection stability between the reinforcing seats. Therefore, during the working process, the overall compressive strength can be better improved with the installation of the reinforcing ball block;

[0016] (3) By opening the threaded connection groove inside the second mounting ring, the required insert is selected for connection and installation according to the thickness and size of the inner tube. At this time, the threaded end cooperates with the threaded connection groove to complete the connection and installation, and the tail is positioned by the bottom positioning piece, thereby achieving the purpose of detachable installation of the insert, thereby better improving the overall bottom adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a partial front view structural diagram of the base tube of the utility model;

[0019] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a base tube of the utility model;

[0020] Figure 4 This is a schematic diagram of the first flange ring structure of the utility model.

[0021] In the figure: 1, inner tube; 2, base tube; 3, second mounting ring; 4, insert; 5, second flange ring; 6, third flange ring; 7, sealing ring; 8, mounting slot; 9, reinforcement plate; 10, reinforcement seat; 11, connecting rod; 12, arc groove; 13, reinforcement ball block; 14, threaded end; 15, baffle; 16, threaded connection groove; 17, bottom positioning piece. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: a bimetallic composite steel pipe that is easy to assemble quickly, including an inner layer pipe 1 and a base pipe 2, a second mounting ring 3 is installed on one side of the base pipe 2, a second flange ring 5 is installed on the other side of the base pipe 2, a mounting slot 8 is opened inside the second flange ring 5, a sealing ring 7 is fixed to the inner wall of the mounting slot 8, a third flange ring 6 is fixed on one side of the inner layer pipe 1, and a groove is opened inside one side of the second mounting ring 3.

[0024] The sealing ring 7 is stickyly fixed to the inner wall of the installation slot 8 , and the outer diameter of the inner tube 1 is smaller than the inner diameter of the installation slot 8 .

[0025] The outer diameter of the third flange ring 6 is larger than the outer diameter of the mounting slot 8 , and the third flange ring 6 and the second flange ring 5 are connected and installed by bolts.

[0026] A threaded connection groove 16 is formed inside the second mounting ring 3 , a threaded end 14 is connected inside the threaded connection groove 16 , and an insert 4 is fixed to one side of the threaded end 14 .

[0027] The outer dimension of the insert 4 is smaller than the inner diameter of the inner layer tube 1 , and a bottom positioning piece 17 is fixed to one side of the threaded end 14 .

[0028] Baffles 15 are fixed to the top and bottom ends of the insert 4 , and a threaded connection is formed between the threaded end 14 and the threaded connection groove 16 .

[0029] A reinforcing plate 9 is fixed inside the base tube 2, a reinforcing seat 10 is installed at one end of the reinforcing plate 9, an arc groove 12 is opened inside the reinforcing seat 10, a reinforcing ball block 13 is installed inside the arc groove 12, and connecting rods 11 are installed on both sides of the reinforcing seat 10.

[0030] The reinforcement seats 10 are evenly distributed on the end surface of the reinforcement plate 9, and the connecting rods 11 are symmetrically distributed about the central axis of the reinforcement seats 10;

[0031] Furthermore, the outer diameter of the third flange ring 6 is larger than the outer diameter of the installation slot 8. The third flange ring 6 and the second flange ring 5 are installed by bolt connection. Therefore, when the inner layer tube 1 is installed, the third flange ring 6 will be intercepted outside the side of the second flange ring 5. At this time, the inner layer tube 1 is fully assembled inside the base tube 2 and can then be fixed by bolts.

[0032] Working principle: First, fix the second flange ring 5 to the side of the base tube 2, open the installation slot 8 inside the second flange ring 5, and use the sealing ring 7 to install it on the inner wall of the installation slot 8. Then, during assembly, let the inner tube 1 pass through the inside of the installation slot 8 and reach the inside of the base tube 2 until the third flange ring 6 is intercepted outside. At this time, the sealing ring 7 plays a sealing connection effect. At the same time, after the third flange ring 6 reaches the side position of the second flange ring 5, bolts are used to connect and install between the second flange ring 5 and the third flange ring 6. At the same time, the The tail of the inner tube 1 is limited by the groove of the second mounting ring 3, and the embedment block 4 is embedded in the tail end of the inner tube 1 to form a bottom limit. The above assembly work of the inner tube 1 and the base tube 2 is completed. At the same time, the reinforcing plate 9 is installed and fixed inside the base tube 2, and then the reinforcing seat 10 is evenly distributed on the end face of the reinforcing plate 9, and then the arc groove 12 is opened inside the reinforcing seat 10, and the reinforcing ball block 13 is used to perform auxiliary load-bearing between the two, so that the corresponding auxiliary compressive load-bearing work can be completed using the reinforcing ball block 13.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A bimetallic composite steel pipe that is easy to assemble quickly, comprising an inner layer pipe (1) and a base layer pipe (2), characterized in that: A second mounting ring (3) is mounted on one side of the base tube (2), a second flange ring (5) is mounted on the other side of the base tube (2), a mounting slot (8) is provided inside the second flange ring (5), a sealing ring (7) is fixed to the inner wall of the mounting slot (8), a third flange ring (6) is fixed on one side of the inner tube (1), and a groove is provided inside one side of the second mounting ring (3).

2. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 1, characterized in that: The sealing ring (7) is adhesively fixed to the inner wall of the installation slot (8), and the outer diameter of the inner layer tube (1) is smaller than the inner diameter of the installation slot (8).

3. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 1, characterized in that: The outer diameter of the third flange ring (6) is greater than the outer diameter of the mounting slot (8), and the third flange ring (6) and the second flange ring (5) are connected and installed by bolts.

4. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 1, characterized in that: A threaded connection groove (16) is provided inside the second mounting ring (3), a threaded end (14) is connected inside the threaded connection groove (16), and an insert (4) is fixed on one side of the threaded end (14).

5. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 4, characterized in that: The outer dimension of the insert (4) is smaller than the inner diameter of the inner layer tube (1), and a bottom positioning piece (17) is fixed to one side of the threaded end (14).

6. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 4, characterized in that: Baffles (15) are fixed to the top and bottom ends of the insert (4), and a threaded connection is formed between the threaded end (14) and the threaded connection groove (16).

7. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 1, characterized in that: A reinforcing plate (9) is fixed inside the base tube (2), a reinforcing seat (10) is installed at one end of the reinforcing plate (9), an arc-shaped groove (12) is provided inside the reinforcing seat (10), a reinforcing ball block (13) is installed inside the arc-shaped groove (12), and connecting rods (11) are installed on both sides of the reinforcing seat (10).

8. The bimetallic composite steel pipe that is easy to assemble quickly according to claim 7, characterized in that: The reinforcement seats (10) are evenly distributed on the end surface of the reinforcement plate (9), and the connecting rods (11) are symmetrically distributed about the central axis of the reinforcement seat (10).

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