Sealing structure for connecting municipal pipes of different diameters

Abstract

The utility model provides a municipal administration pipeline connecting seal structure suitable for different pipe diameter relates municipal administration pipeline instrument technical field, including fixed ring A, firm peg, seal pipe, fixed ring B, seal ring, extension ring and connecting screw, fixed ring A and fixed ring B one side each welds a set of extension ring, fixed ring A and fixed ring B inside one side is equipped with a set of slide rail groove, fixed ring A and fixed ring B inboard each is equipped with a set of clamping groove, and seal ring both sides clamping is connected in fixed ring A and fixed ring B inboard clamping groove, fixed ring A and fixed ring B one side is equipped with six sets of thread round hole, the both sides annular plate of seal pipe has six sets of round hole each, and the both sides annular plate of seal pipe is fastened and is connected with six sets of connecting screw each, adjusts and adapts different pipe diameter through fixed ring, extension ring, and seal pipe and seal ring enhance the leakproofness, firm peg and other components simplify installation maintenance, reduce cost and promote efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of municipal pipeline equipment technology, and more specifically, it relates to a connection and sealing structure for municipal pipelines of different diameters. Background Technology

[0002] Municipal pipelines are a crucial component of urban infrastructure, bearing important responsibilities such as water supply and drainage, and gas transmission. Their connection status directly impacts the stability of the system's operation. In the construction and maintenance of municipal engineering projects, adjustments to pipeline network planning, renovation of old pipelines, or the addition of new branch lines frequently necessitate connecting pipelines of different diameters. Currently, the industry primarily uses customized reducing couplings for connecting pipelines of different diameters. These couplings are designed and manufactured individually based on specific pipe diameter combinations. With the continuous development of cities, the specifications of pipelines are increasing, and the need for connections between different pipe diameter combinations frequently arises. This has led to a proliferation of coupling types, causing inconvenience in production, storage, and construction. Furthermore, the operating environment of municipal pipelines is complex, affected by factors such as temperature changes and foundation settlement. Therefore, there are continuous and stable requirements for the adaptability and sealing performance of the connection structure. Under these circumstances, developing a connection and sealing structure that can flexibly adapt to different pipe diameter combinations and meet the actual needs of engineering applications has become an important issue in optimizing the construction, operation, and maintenance of municipal pipeline systems.

[0003] Based on the above, existing municipal pipeline connections have obvious defects: poor adaptability, requiring custom-made reducing joints for each pipe diameter combination, resulting in high inventory pressure and high costs due to separate production; insufficient sealing, with traditional rigid joints having low fit with the outer wall of the pipe, and prone to gaps due to temperature changes and foundation settlement, leading to water and air leaks; and complex installation, requiring multiple components such as flanges and bolts for fixing, which is time-consuming and requires the disassembly of a large number of components for later maintenance. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a municipal pipeline connection sealing structure suitable for different pipe diameters, thereby solving the problems of poor adaptability, insufficient sealing, and complex installation in existing systems.

[0005] This utility model is applicable to the sealing structure for municipal pipeline connections of different diameters, and is achieved through the following specific technical means: A sealing structure suitable for municipal pipelines of different diameters includes a fixing ring A, a stabilizing bolt, a sealing bend, a fixing ring B, a sealing ring, an extension ring, and connecting screws. Each of the fixing rings A and B has a set of extension rings welded to one side. Each of the fixing rings A and B has a set of slide rail grooves on one side of its interior. Each of the fixing rings A and B has a set of locking grooves on its inner side, and the sealing rings are locked into these grooves on both sides. Each of the fixing rings A and B has six sets of threaded circular holes on one side. Each of the sealing bend has six sets of circular holes on its two annular plates, and six sets of connecting screws are fastened to each of these annular plates. The annular plates of the sealing bend are fastened to one side of the fixing rings A and B using these connecting screws. Each of the extension rings has a set of semi-circular connecting blocks on its outer side, and a set of circular holes on these semi-circular connecting blocks. The stabilizing bolt has threads on its outer side, and a set of nuts is fastened to one side of the stabilizing bolt. The stabilizing bolt is fastened to the semi-circular connecting blocks on the outer side of the extension ring using these nuts.

[0006] Furthermore, a set of tightening screws is fastened to each of the circular holes on both sides of one end of the extension ring, and the extension ring welded to one side of the fixed ring A is fastened to the slide rail groove inside the fixed ring B by the tightening screws.

[0007] Furthermore, the extension ring welded to one side of the fixed ring B is fastened to the slide rail groove inside the fixed ring A by a tightening ring screw.

[0008] Furthermore, the outer side of the sealing fold is provided with a triangular fold, and the two sides of the sealing fold are sealed and connected to the two sides inside the sealing ring.

[0009] Furthermore, a set of circular extension rings is provided on one side of the sealing ring.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, by setting a fixed ring A, a fixed ring B and an extension ring, utilizes the sliding fit of the extension ring in the slide rail groove and the fixing of the tightening ring screw to flexibly adjust the distance and radial dimension of the two fixed rings. It eliminates the need to customize special joints for different pipe diameter combinations, greatly improves the adaptability to pipes of different diameters, and reduces inventory pressure and production costs.

[0011] 2. This utility model, by setting a sealing bend and a sealing ring, allows the triangular folded sealing bend to deform with the displacement of the pipeline. Combined with the tight fit between the sealing ring and the outer wall of the pipeline, a multi-layer sealing structure is formed, which effectively resists the effects of temperature changes and foundation settlement, significantly enhances the sealing performance of the connection parts, and avoids water and air leakage problems.

[0012] 3. This utility model, by setting up components such as stabilizing bolts and connecting screws, can complete the assembly of the fixing ring and sealing components without complicated tools. Moreover, the components are connected by snap-fit ​​and screw fastening, making the installation operation simple. During later maintenance, only the corresponding screws need to be removed, which greatly shortens the installation and maintenance time and improves construction efficiency. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the internal component structure of the main body of this utility model.

[0015] Figure 3 This is a schematic cross-sectional view of the extension component connection structure of this utility model.

[0016] Figure 4 This is a cross-sectional view of the fastening component connection structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Fixing ring A; 2. Stabilizing bolt; 3. Sealing fold; 4. Fixing ring B; 5. Sealing ring; 101. Extension ring; 201. Tightening ring screw; 202. Nut; 501. Connecting screw. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] Example: As attached Figure 1 To be continued Figure 5 As shown: This utility model provides a sealing structure for municipal pipeline connections suitable for different pipe diameters, including a fixing ring A1, a stabilizing bolt 2, a sealing bend 3, a fixing ring B4, a sealing ring 5, an extension ring 101, and a connecting screw 501. An extension ring 101 is welded to one side of each of the fixing rings A1 and B4. A set of slide rail grooves is provided on one side of the interior of each of the fixing rings A1 and B4. A set of snap-fit ​​grooves is provided on the inner side of each of the fixing rings A1 and B4, and the sealing ring 5 is snap-fitted into the snap-fit ​​grooves on both sides of the interior of the fixing rings A1 and B4. Six sets of threaded circular holes are provided on one side of each of the fixing rings A1 and B4 for sealing. There are six sets of circular holes on each of the two annular plates on both sides of the sealing tube 3, and six sets of connecting screws 501 are fastened to each of the two annular plates on both sides of the sealing tube 3. The two annular plates on both sides of the sealing tube 3 are fastened to one side of the fixing ring A1 and the fixing ring B4 by the connecting screws 501. A set of semi-circular connecting blocks is provided on the outer side of one side of the extension ring 101, and a set of circular holes is provided on the outer semi-circular connecting blocks on the outer side of one side of the extension ring 101. The outer side of the stabilizing bolt 2 is threaded, and a set of nuts 202 is fastened to one side of the stabilizing bolt 2. The outer side of the stabilizing bolt 2 is fastened to the outer semi-circular connecting block on the outer side of one side of the extension ring 101 by the nuts 202.

[0021] The extension ring 101 has a set of tightening screws 201 fastened to each of the two circular holes on one side. The extension ring 101 welded to one side of the fixed ring A1 is fastened to the slide rail groove inside the fixed ring B4 by the tightening screws 201. The tightening action of the tightening screws 201 can lock the position of the extension ring 101 in the slide rail groove, which not only ensures the connection between the fixed ring A1 and the fixed ring B4 is stable, but also allows for flexible adjustment of the spacing to adapt to different pipe diameters, thereby improving the structural adaptability and stability.

[0022] The extension ring 101 welded to one side of the fixed ring B4 is fastened to the slide rail groove inside the fixed ring A1 by the tightening ring screw 201. This connection method fixes the position by tightening ring screw 201, so that the fixed ring B4 and the fixed ring A1 form a linkage adjustment structure, which not only enhances the overall connection strength, but also can adapt to different pipe diameters in both directions and improve the adjustment flexibility.

[0023] The outer side of the sealing bend 3 is designed with a triangular bend, and both sides of the sealing bend 3 are sealed to both sides of the inner side of the sealing ring 5. The triangular bend can expand and contract with the displacement of the pipeline, and together with the sealing connection of the sealing ring 5, it forms an elastic sealing barrier, which can buffer stress and enhance the sealing effect to prevent media leakage.

[0024] Among them, a set of circular extension rings is provided on one side of the sealing ring 5. The circular extension rings can increase the contact area with the outer wall of the pipe, enhance the initial sealing effect, and adaptively adjust the contact degree with the slight movement of the pipe, further improving the sealing reliability and reducing the risk of leakage.

[0025] The specific usage and function of this embodiment are as follows: In this invention, after flattening the ends of two municipal pipes of different diameters to be connected, the sealing ring 5 is first fitted into the corresponding slots on the inner sides of the fixing rings A1 and B4, and the circular extension ring on one side of the sealing ring 5 is used to initially fit against the outer wall of the pipe. Next, the fixing rings A1 and B4 are pushed so that the extension ring 101 welded to one side of the fixing ring A1 slides into the inner slide rail groove of the fixing ring B4, and the extension ring 101 on one side of the fixing ring B4 slides into the inner slide rail groove of the fixing ring A1. After adjusting to the appropriate position according to the pipe diameter, the extension ring 101 is tightened with the tightening screw 201 to achieve radial dimension adaptation. Then, the annular plates on both sides of the sealing fold 3 are fixed to one side of the fixing rings A1 and B4 respectively using connecting screws 501. The triangular fold structure allows for expansion and contraction space. Finally, the stabilizing bolt 2 is passed through the semi-circular connecting block hole of the extension ring 101 and locked with the nut 202 to enhance overall stability. During use, the sealing bend 3 deforms with the displacement of the pipeline, forming multiple seals with the sealing ring 5 to ensure no leakage. Furthermore, the flexible adjustment and easy connection of each component greatly improves installation efficiency and adaptability.

[0026] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A sealing structure suitable for municipal pipeline connections of different diameters, characterized in that: It includes a fixing ring A (1), a stabilizing bolt (2), a sealing fold (3), a fixing ring B (4), a sealing ring (5), an extension ring (101), and a connecting screw (501). An extension ring (101) is welded to one side of each of the fixed ring A (1) and fixed ring B (4). A set of slide rail grooves is provided on one side of the interior of the fixed ring A (1) and fixed ring B (4). A set of snap-fit ​​grooves is provided on the inner side of each of the fixed ring A (1) and fixed ring B (4). The sealing ring (5) is snap-fitted into the snap-fit ​​grooves on both sides of the fixed ring A (1) and fixed ring B (4). Six sets of threaded round holes are provided on one side of the fixed ring A (1) and fixed ring B (4). Six sets of round holes are provided on each side of the annular plate of the sealing tube (3). Six sets of connecting screws (501) are fastened to each side of the annular plate of the sealing tube (3). The annular plates on both sides of the sealing tube (3) are fastened to one side of the fixed ring A (1) and fixed ring B (4) by connecting screws (501). The extension ring (101) has a set of semi-circular connecting blocks on one side, and a set of circular holes on the semi-circular connecting blocks on one side. The stabilizing bolt (2) has threads on the outside, and a set of nuts (202) is fastened to one side of the stabilizing bolt (2). The stabilizing bolt (2) is fastened to the semi-circular connecting blocks on one side of the extension ring (101) by the nuts (202).

2. The municipal pipeline connection sealing structure applicable to different pipe diameters as described in claim 1, characterized in that: The extension ring (101) is fastened with a set of tightening ring screws (201) in the circular holes on both sides of one end, and the extension ring (101) welded to one side of the fixed ring A (1) is fastened to the slide rail groove inside the fixed ring B (4) by the tightening ring screws (201).

3. The municipal pipeline connection sealing structure applicable to different pipe diameters as described in claim 1, characterized in that: The extension ring (101) welded to one side of the fixed ring B (4) is fastened to the slide groove inside the fixed ring A (1) by a tightening ring screw (201).

4. The municipal pipeline connection sealing structure applicable to different pipe diameters as described in claim 1, characterized in that: The outer side of the sealing fold (3) is provided with a triangular fold, and the two sides of the sealing fold (3) are sealed and connected to the two sides of the inner side of the sealing ring (5).

5. The municipal pipeline connection sealing structure applicable to different pipe diameters as described in claim 1, characterized in that: A set of circular extension rings is provided on one side of the sealing ring (5).

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