Connecting structure of seamless steel pipe

Abstract

The utility model discloses a seamless steel pipe connecting structure which comprises a first steel pipe and a second steel pipe, the opposite faces of the first steel pipe and the second steel pipe are respectively and movably connected with a flange plate, the opposite faces of the two flange plates are jointly and movably connected with two elastic sealing gaskets, and the two elastic sealing gaskets are semicircular. The upper sides and the lower sides of the two elastic sealing gaskets are each fixedly provided with a fixing block, the opposite faces of the two fixing blocks are jointly and movably connected with a bolt in a penetrating and inserting mode, and the problem that flanges of seamless steel pipes are difficult to disassemble is solved. According to the technical scheme, the connecting structure of the seamless steel pipe is provided. According to the utility model, the elastic sealing gasket is arranged between the two flange plates, and the elastic sealing gasket can absorb and compensate the size change caused by temperature change to a certain extent due to the elastic characteristic of the material of the elastic sealing gasket, so that the connection between the positioning bolts and the flange plates between the flange plates is easier to separate, and the disassembly difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to a connection structure of a seamless steel pipe, more specifically, it relates to a connection structure of a seamless steel pipe. Background Art

[0002] The connection structure of seamless steel pipes mainly achieves a stable connection between steel pipes through different connection methods and principles to meet the extension, branching, turning, fixing and sealing functions of the pipeline system. The existing seamless steel pipe connections usually use flange connectors to connect steel pipes together, which is suitable for the connection of large-diameter steel pipes and has the characteristics of firm connection and easy disassembly.

[0003] When the existing seamless steel pipe connection structure is in use, as the temperature rises, the seamless steel pipe and flange materials will expand and contract due to heat. When there is a temperature difference or a large temperature change at the connection, the relative position between the flange and the pipe will change, and even a slight deformation will occur. This deformation will change the fit between the sealing gasket and the flange surface, thereby affecting the smooth disassembly and making it difficult to disassemble the flange of the seamless steel pipe.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a connection structure of a seamless steel pipe, wherein an elastic sealing pad is arranged between two flanges, and the elastic sealing pad can absorb and compensate for the dimensional changes caused by temperature changes to a certain extent due to the elastic characteristics of its material, thereby maintaining the connection stability and sealing between the flange and the pipeline. This compensation effect reduces the difficulty of disassembly caused by temperature changes. Due to the elasticity and compressibility of the elastic sealing pad, it can provide a certain buffer and release space during the disassembly process, making it easier to separate the connection between the positioning bolts and the flanges between the flanges. In contrast, if there is no elastic sealing pad, the direct hard contact between the flange and the pipeline material will increase the friction and resistance during disassembly, resulting in difficulty in disassembly. The two elastic sealing pads are semicircular in shape and form a circular ring shape, and the two elastic sealing pads are fixed together by a fixing block and a bolt. After removing the bolts and the fixing block, the two semicircles can be directly taken out from between the flanges without the need for complicated cutting or destruction of the entire elastic sealing pad. This design simplifies the disassembly process, reduces the time and labor required for disassembly, and reduces the difficulty of disassembly.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a connection structure of a seamless steel pipe, comprising a first steel pipe and a second steel pipe, the opposite surfaces of the first steel pipe and the second steel pipe are movably connected with a flange, the opposite surfaces of the two flanges are movably connected with two elastic sealing gaskets, the two elastic sealing gaskets are semicircular, and the upper and lower sides of the two elastic sealing gaskets are fixedly installed with a fixing block, and the opposite surfaces of the two groups of the fixing blocks are movably connected with a bolt.

[0007] The utility model is further configured as follows: two support plates are fixedly installed on the lower sides of the first steel pipe and the second steel pipe.

[0008] The utility model is further configured as follows: a support pad is fixedly installed on the lower end of the support plate.

[0009] The utility model is further configured as follows: the first steel pipe and the second steel pipe are connected.

[0010] The utility model is further configured such that: the axis lines of the first steel pipe and the second steel pipe coincide with each other.

[0011] In summary, the utility model has the following beneficial effects:

[0012] 1. By arranging an elastic sealing gasket between the two flanges, the elastic sealing gasket can absorb and compensate for the dimensional changes caused by temperature changes to a certain extent due to the elastic properties of its material, thereby maintaining the connection stability and sealing between the flange and the pipeline. This compensation effect reduces the difficulty of disassembly caused by temperature changes. Due to the elasticity and compressibility of the elastic sealing gasket, it can provide a certain buffer and release space during the disassembly process, making it easier to separate the positioning bolts and flange connections between the flanges. In contrast, if there is no elastic sealing gasket, the direct hard contact between the flange and the pipeline material will increase the friction and resistance during disassembly, resulting in difficulty in disassembly. The two elastic sealing gaskets are semicircular in shape and form a circular ring shape, and the two elastic sealing gaskets are fixed together by a fixing block and bolts. After removing the bolts and the fixing block, the two semicircles can be directly taken out from between the flanges without the need for complicated cutting or destruction of the entire elastic sealing gasket. This design simplifies the disassembly process, reduces the time and labor required for disassembly, and reduces the difficulty of disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the elastic sealing pad of the utility model.

[0015] In the figure: 1. first steel pipe; 2. second steel pipe; 3. flange; 4. elastic sealing gasket; 5. fixing block; 6. bolt; 7. support plate; 8. support pad. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 utility model can be understood according to specific circumstances.

[0019] The utility model is described in detail below in conjunction with the accompanying drawings.

[0020] A seamless steel pipe connection structure, such as Figure 1 to Figure 2As shown, a connection structure of seamless steel pipes includes a first steel pipe 1 and a second steel pipe 2, the opposite surfaces of the first steel pipe 1 and the second steel pipe 2 are both movably connected with a flange 3, the first steel pipe 1 and the second steel pipe 2 are connected, the axis lines of the first steel pipe 1 and the second steel pipe 2 coincide, the opposite surfaces of the two flanges 3 are movably connected with two elastic sealing pads 4, the two elastic sealing pads 4 are semicircular, the upper and lower sides of the two elastic sealing pads 4 are fixedly installed with a fixing block 5, the opposite surfaces of the two groups of fixing blocks 5 are movably connected with a bolt 6, and the elastic sealing pad 4 is arranged between the two flanges 3. Due to the elastic characteristics of its material, the elastic sealing pad 4 can absorb and compensate for the dimensional changes caused by temperature changes to a certain extent, thereby maintaining the connection stability and sealing between the flange 3 and the pipeline. This compensation effect reduces the difficulty of disassembly caused by temperature changes. Due to the elasticity and compressibility of the elastic sealing pad 4, it can provide a certain buffer and release space during the disassembly process, so that the positioning bolts between the flanges 3 and the connection of the flanges 3 are easier to separate. In contrast, if there is no elastic sealing gasket 4, the direct hard contact between the flange 3 and the pipe material may increase the friction and resistance during disassembly, resulting in difficulty in disassembly. The two elastic sealing gaskets 4 are semicircular in shape to form a circular ring shape, and the two elastic sealing gaskets 4 are fixed together by the fixing block 5 and the bolts 6. After removing the bolts 6 and the fixing block 5, the two semicircles can be directly taken out from between the flanges 3 without the need for complicated cutting or destruction of the entire elastic sealing gasket 4. This design simplifies the disassembly process, reduces the time and labor required for disassembly, and reduces the difficulty of disassembly.

[0021] Two support plates 7 are fixedly installed on the lower sides of the first steel pipe 1 and the second steel pipe 2. A support pad 8 is fixedly installed on the lower end of the support plate 7. The support pad 8 is usually made of high-strength materials such as steel plates and has good compressive resistance. This allows the entire support structure to carry a larger weight and improve the overall stability of the pipeline system.

[0022] Working principle: By arranging an elastic sealing gasket 4 between the two flanges 3, the elastic sealing gasket 4 can absorb and compensate for the dimensional changes caused by temperature changes to a certain extent due to the elastic characteristics of its material, thereby maintaining the connection stability and sealing between the flange 3 and the pipeline. This compensation effect reduces the difficulty of disassembly caused by temperature changes. Due to the elasticity and compressibility of the elastic sealing gasket 4, it can provide a certain buffer and release space during the disassembly process, making it easier to separate the positioning bolts between the flanges 3 and the connection of the flange 3. In contrast, if there is no elastic sealing gasket 4, the direct hard contact between the flange 3 and the pipeline material may increase the friction and resistance during disassembly, resulting in difficulty in disassembly. The two elastic sealing gaskets 4 are semicircular in shape and form a circular ring shape, and the two elastic sealing gaskets 4 are fixed together by the fixing block 5 and the bolt 6. After removing the bolt 6 and the fixing block 5, the two semicircles can be directly taken out from between the flanges 3 without the need for complicated cutting or destruction of the entire elastic sealing gasket 4. This design simplifies the disassembly process, reduces the time and labor required for disassembly, and reduces the difficulty of disassembly.

[0023] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A seamless steel pipe connection structure, comprising a first steel pipe (1) and a second steel pipe (2), wherein the first steel pipe (1) and the second steel pipe (2) are movably connected to the opposite surfaces of each of the first steel pipe (1) and the second steel pipe (2), and characterized in that: The opposing surfaces of the two flanges (3) are movably connected to two elastic sealing pads (4), the two elastic sealing pads (4) are semicircular, and a fixing block (5) is fixedly installed on both the upper and lower sides of the two elastic sealing pads (4), and the opposing surfaces of the two groups of fixing blocks (5) are movably connected to each other through a bolt (6).

2. A seamless steel pipe connection structure according to claim 1, characterized in that: Two support plates (7) are fixedly mounted on the lower sides of the first steel tube (1) and the second steel tube (2).

3. A seamless steel pipe connection structure according to claim 2, characterized in that: A support pad (8) is fixedly mounted on the lower end of the support plate (7).

4. The connection structure of a seamless steel pipe according to claim 1, characterized in that: The first steel pipe (1) and the second steel pipe (2) are connected.

5. The connection structure of a seamless steel pipe according to claim 1, characterized in that: The axis centers of the first steel pipe (1) and the second steel pipe (2) coincide with each other.

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