Reducing connecting pipeline steel structure

Abstract

The utility model discloses a variable-diameter connecting pipeline steel structure which comprises a variable-diameter pipeline, one end of the variable-diameter pipeline is provided with a first connecting flange, and the other end of the variable-diameter pipeline is provided with a second connecting flange. An inserting groove is formed in the second connecting flange, and a plurality of first limiting grooves are formed in the second connecting flange and located in the inserting groove; a plug is arranged at the first connecting flange, a plurality of second limiting grooves are formed in the outer end of the plug, and a sealing ring mounting groove is formed in the outer side of the plug. According to the utility model, the sealing ring is mounted in the sealing ring mounting groove, so that the sealing performance is greatly improved through the matching of the sealing ring and the sealing gasket, and the sealing performance of the small-pipe-diameter end is improved.

Description

Technical Field

[0001] This utility model relates to the field of variable diameter connecting pipe technology, specifically a steel structure for variable diameter connecting pipe. Background Technology

[0002] Water pipes of different diameters are generally connected by reducing pipes.

[0003] The existing publication number CN215488303U discloses a reducing pipe connection structure, including a first connecting pipe and a second connecting pipe. One end of the second connecting pipe has a tapered transition pipe. The end of the first connecting pipe near the second connecting pipe has a through hole for inserting the transition pipe into the first connecting pipe. The transition pipe is slidably connected to the first connecting pipe via a slip ring at its end. The other end of the first connecting pipe is sleeved on the outside of the first connecting pipe. A sealing structure is provided on the inner wall of the first connecting pipe. The first connecting pipe and the first connecting pipe are locked together by a clamp. A locking cap is sleeved on the outside of the second connecting pipe. A limiting plate is provided on the second connecting pipe to limit the locking cap. The second connecting pipe is threadedly connected to the second connecting pipe via the locking cap. This reducing pipe connection structure allows for adjustment of the reducing pipe length, meeting the connection requirements of pipes with different distances; it is also simple in structure and easy to install.

[0004] While existing reducing pipes enable the connection of pipes with different diameters, the connection between pipes is generally sealed by installing a gasket. However, due to the increased water impact after the diameter change, the seal at the smaller end of the pipe connection is prone to problems. Therefore, we propose a steel structure for reducing pipe connections. Utility Model Content

[0005] The purpose of this utility model is to provide a steel structure for variable diameter connecting pipes to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel structure for a variable diameter connecting pipe, comprising a variable diameter pipe, a first connecting flange installed at one end of the variable diameter pipe, and a second connecting flange installed at the other end of the variable diameter pipe; a slot is provided at the second connecting flange, and multiple first limiting grooves are provided at the slot of the second connecting flange; a plug is provided at the first connecting flange, and multiple second limiting grooves are provided at the outer end of the plug, and a sealing ring mounting groove is provided on the outer side of the plug.

[0007] Preferably, the reducing pipe and the first connecting flange are reinforced by multiple reinforcing plates, and the spacing between adjacent reinforcing plates is the same.

[0008] Preferably, the diameter of the reducing pipe at the first connecting flange end is smaller than the diameter of the reducing pipe at the second connecting flange end; the diameter of the first connecting flange is smaller than the diameter of the second connecting flange.

[0009] Preferably, the cross-sectional shape of the sealing ring mounting groove is semi-circular.

[0010] Preferably, the reducing pipe, the first connecting flange, and the second connecting flange are all made of steel structure, and the reducing pipe and the first connecting flange are fixed by welding.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the outer end of the plug is provided with multiple second limiting grooves, and a sealing gasket can be installed at the plug. The sealing gasket is provided with limiting protrusions that cooperate with the second limiting grooves. Through the cooperation of the limiting protrusions and the second limiting grooves, the sealing performance of the pipe connection can be ensured to be unaffected. A sealing ring mounting groove is provided on the outer side of the plug. The cross-sectional shape of the sealing ring mounting groove is semi-circular. The sealing ring is installed in the sealing ring mounting groove. Thus, through the cooperation of the sealing ring and the sealing gasket, the sealing performance is greatly improved, and the sealing performance of the small diameter end is improved. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0016] In the diagram: 1. Reducing pipe; 2. First connecting flange; 3. Second connecting flange; 4. Slot; 5. First limiting groove; 6. Plug; 7. Second limiting groove; 8. Sealing ring mounting groove; 9. Reinforcing plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0018] Please see Figure 1-3 In this embodiment of the present invention, a steel structure for a variable diameter connecting pipe includes a variable diameter pipe 1, one end of which is fitted with a first connecting flange 2, and the other end of which is fitted with a second connecting flange 3. A slot 4 is provided at the second connecting flange 3, and multiple first limiting grooves 5 are provided at the slot 4. A sealing gasket can be installed at the slot 4, and the sealing gasket has limiting protrusions that cooperate with the first limiting grooves. Through the cooperation of the limiting protrusions and the first limiting grooves, the sealing performance of the pipe connection is ensured to remain unaffected. A plug 6 is provided at the flange 2. The outer end of the plug 6 has multiple second limiting grooves 7, which can be used to install a sealing gasket. The sealing gasket has limiting protrusions that cooperate with the second limiting grooves. Through the cooperation of the limiting protrusions and the second limiting grooves, the sealing performance of the pipe connection can be ensured. A sealing ring mounting groove 8 is provided on the outer side of the plug 6. The cross-sectional shape of the sealing ring mounting groove 8 is semi-circular. The sealing ring is installed in the sealing ring mounting groove 8. Thus, through the cooperation of the sealing ring and the sealing gasket, the sealing performance is greatly improved, and the sealing performance of the small diameter end is improved.

[0019] The reducing pipe 1 and the first connecting flange 2 are reinforced by multiple reinforcing plates 9, with the same spacing between adjacent reinforcing plates 9. The diameter of the reducing pipe 1 at the end of the first connecting flange 2 is smaller than the diameter of the reducing pipe 1 at the end of the second connecting flange 3; the diameter of the first connecting flange 2 is smaller than the diameter of the second connecting flange 3. The reducing pipe 1, the first connecting flange 2, and the second connecting flange 3 are all made of steel structure. The reducing pipe 1 and the first connecting flange 2 are fixed by welding, and the reducing pipe 1 and the second connecting flange 3 are fixed by welding.

[0020] The working principle of this utility model is as follows: The outer end of the plug 6 is provided with multiple second limiting grooves 7, and a sealing gasket can be installed at the plug 6. The sealing gasket is provided with limiting protrusions that cooperate with the second limiting grooves. Through the cooperation of the limiting protrusions and the second limiting grooves, the sealing performance of the pipe connection can be ensured to be unaffected. A sealing ring mounting groove 8 is provided on the outer side of the plug 6. The cross-sectional shape of the sealing ring mounting groove 8 is semi-circular. The sealing ring is installed in the sealing ring mounting groove 8. Thus, through the cooperation of the sealing ring and the sealing gasket, the sealing performance is greatly improved, and the sealing performance of the small diameter end is improved.

[0021] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A variable diameter connecting pipe steel structure comprising a variable diameter pipe (1), characterized by: The reducing pipe (1) is equipped with a first connecting flange (2) at one end and a second connecting flange (3) at the other end; a slot (4) is provided at the second connecting flange (3), and a plurality of first limiting grooves (5) are provided at the slot (4) of the second connecting flange (3); a plug (6) is provided at the first connecting flange (2), and a plurality of second limiting grooves (7) are provided at the outer end of the plug (6), and a sealing ring mounting groove (8) is provided on the outer side of the plug (6).

2. A variable diameter connecting pipe steel structure according to claim 1, characterized in that: The reducing pipe (1) and the first connecting flange (2) are reinforced by multiple reinforcing plates (9), and the spacing between adjacent reinforcing plates (9) is the same.

3. The steel structure for a variable diameter connecting pipe according to claim 1, characterized in that: The diameter of the reducing pipe (1) at one end of the first connecting flange (2) is smaller than the diameter of the reducing pipe (1) at one end of the second connecting flange (3); the diameter of the first connecting flange (2) is smaller than the diameter of the second connecting flange (3).

4. A steel structure for a variable diameter connecting pipe according to claim 1, characterized in that: The cross-sectional shape of the sealing ring mounting groove (8) is semi-circular.

5. A steel structure for a variable diameter connecting pipe according to claim 1, characterized in that: The reducing pipe (1), the first connecting flange (2) and the second connecting flange (3) are all made of steel structure. The reducing pipe (1) and the first connecting flange (2) are fixed by welding. The reducing pipe (1) and the second connecting flange (3) are fixed by welding.

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