A pipe coupling device

Abstract

The utility model discloses a pipeline connecting device, including first pipeline, the utility model discloses the connecting guide mechanism that is composed of butt joint groove and butt joint block, first clamping piece and second clamping piece etc.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline connection technology, and specifically relates to a pipeline connection device. Background Technology

[0002] In the field of pipeline connection technology, flange connection is a common method, but it has many inconveniences in practical applications. In traditional flange connection, the bolt holes on the two flanges need to be manually aligned. Especially in large-diameter pipelines or confined spaces, flange misalignment can easily lead to bolt hole misalignment, requiring repeated adjustments and seriously affecting installation efficiency. At the same time, its sealing relies heavily on flat gaskets and bolt preload. If the preload is uneven or the pipeline vibrates, the gasket is prone to local failure, causing media leakage. Furthermore, flat sealing requires a high degree of flatness at the pipeline ends, and processing errors can further exacerbate the risk of leakage. In addition, in connection methods that rely solely on bolt fixing, the bolts are prone to loosening when the pipeline is subjected to axial tension or vibration, leading to an increase in the flange fitting gap and a reduction in sealing performance. When repairing or replacing pipelines, disassembly and reinstallation face alignment difficulties, and the sealing gaskets need to be replaced frequently, increasing maintenance costs and time. Utility Model Content

[0003] The purpose of this utility model is to provide a pipe connection device to solve the problem mentioned in the background art that the pipe is not convenient to connect.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pipe connection device, comprising a first pipe, a second pipe disposed on one side of the first pipe, a first flange fixed to the end of the first pipe, a second flange fixed to the end of the second pipe, and a connection guide mechanism and a sealing assembly disposed between the first flange and the second flange.

[0005] Preferably, the connection guide mechanism includes a mating groove symmetrically formed at the end of the first flange and a mating block symmetrically fixed at the end of the second flange, wherein the mating block engages with the mating groove.

[0006] Preferably, a first snap-fit ​​element is symmetrically fixed to the surface of the first flange, and a ring is sleeved on the surface of the second flange. A second snap-fit ​​element is symmetrically fixed to the surface of the ring, and the second snap-fit ​​element engages with the first snap-fit ​​element.

[0007] Preferably, the end of the second snap-fit ​​member is fixed with a limiting groove, and the inside of the first snap-fit ​​member is fixed with a limiting buckle, the limiting buckle engaging with the limiting groove.

[0008] Preferably, the surface of the second flange is symmetrically provided with grooves, and the inner side of the second snap-fit ​​member is symmetrically fixed with sliders, the sliders being slidably connected to the grooves.

[0009] Preferably, the sealing assembly includes a tapered groove formed at the end of the first pipe and a tapered sealing ring disposed inside the tapered groove, and an extension tube is fixed to the end of the second pipe, the extension tube being fitted and connected to the tapered sealing ring.

[0010] Preferably, both the first flange and the second flange have multiple threaded holes through their ends, and bolts passing through the threaded holes connect the first flange and the second flange.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model utilizes a connection guide mechanism composed of a designed docking groove and docking block, a first snap-fit ​​component, and a second snap-fit ​​component. Combined with the sliding of the slider and the groove, and the engagement of the limiting buckle and the limiting groove, it enables rapid and precise alignment of the first and second flanges. This eliminates the need for repeated adjustments to the bolt holes, significantly improving installation efficiency. Simultaneously, the sealing assembly, consisting of a conical groove, a conical sealing ring, and an extension tube, utilizes the extension tube to press and squeeze the conical sealing ring, forming a reliable seal and enhancing sealing performance while reducing leakage risk. Furthermore, the dual function of the connection guide mechanism and bolt fixing improves the overall connection stability and reduces the probability of bolt loosening. Disassembly and assembly are easily performed by rotating the snap-fit ​​component, and the conical sealing ring is reusable, reducing maintenance costs and time. This design is suitable for efficient and stable pipeline connection scenarios. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic diagram of the conical groove structure of this utility model; Figure 3 This is a schematic diagram of the first flange structure of this utility model; Figure 4 This is a schematic diagram of the second flange structure of this utility model; Figure 5 In this utility model Figure 2 Enlarged view of point A; In the diagram: 1. First pipe; 2. Second pipe; 3. First flange; 4. Second flange; 100. Butt groove; 101. Butt block; 200. Conical groove; 201. Conical sealing ring; 202. Extension pipe; 300. First snap-fit ​​fitting; 301. Ring; 302. Second snap-fit ​​fitting; 400. Limiting groove; 401. Limiting buckle; 500. Sliding groove; 501. Sliding block. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1 to 5 This utility model provides a technical solution: a pipe connection device, including a first pipe 1, a second pipe 2 provided on one side of the first pipe 1, a first flange 3 fixed to the end of the first pipe 1, a second flange 4 fixed to the end of the second pipe 2, and a connection guide mechanism and a sealing assembly provided between the first flange 3 and the second flange 4.

[0015] In this embodiment, preferably, the connecting guide mechanism includes a mating groove 100 symmetrically opened at the end of the first flange 3 and a mating block 101 symmetrically fixed at the end of the second flange 4. The mating block 101 is engaged with the mating groove 100. When the first flange and the second flange are in contact, the initial positioning can be quickly achieved, avoiding the difficulty of subsequent operation caused by the positional offset of the two flanges in the early stage of installation, and laying the foundation for the subsequent bolt hole alignment.

[0016] In this embodiment, preferably, a first snap-fit ​​member 300 is symmetrically fixed on the surface of the first flange 3, and a ring 301 is sleeved on the surface of the second flange 4. A second snap-fit ​​member 302 is symmetrically fixed on the surface of the ring 301, and the second snap-fit ​​member 302 is engaged with the first snap-fit ​​member 300.

[0017] In this embodiment, preferably, the end of the second snap-fit ​​member 302 is fixed with a limiting groove 400, and the inside of the first snap-fit ​​member 300 is fixed with a limiting buckle 401. The limiting buckle 401 engages with the limiting groove 400, which can limit and fix the second snap-fit ​​member and the first snap-fit ​​member, preventing relative displacement between the two during subsequent bolt installation. This ensures accurate alignment of the bolt holes on the surfaces of the first flange and the second flange, avoids the problem of difficult alignment of bolt holes in traditional flange connections, facilitates smooth bolt penetration and tightening, and improves installation efficiency.

[0018] In this embodiment, preferably, the surface of the second flange 4 is symmetrically provided with a sliding groove 500, and the inner side of the second snap-fit ​​member 302 is symmetrically fixed with a slider 501. The slider 501 is slidably connected to the sliding groove 500. When the second snap-fit ​​member is pushed, the slider slides along the sliding groove, which ensures the stability of the movement of the second snap-fit ​​member, so that it can accurately rotate and engage with the first snap-fit ​​member, further fixing the two flanges and ensuring that their positions are relatively stable.

[0019] In this embodiment, preferably, the sealing assembly includes a tapered groove 200 formed at the end of the first pipe 1 and a tapered sealing ring 201 disposed inside the tapered groove 200. An extension tube 202 is fixed to the end of the second pipe 2. The extension tube 202 is fitted and connected to the tapered sealing ring 201. The extension tube is embedded inside the tapered sealing ring and fits in place. By utilizing the characteristics of the tapered structure, the sealing ring is subjected to both radial and axial compression, which enhances the tightness of the seal, effectively improves the sealing performance of the device, and reduces the possibility of media leakage.

[0020] In this embodiment, preferably, the ends of the first flange 3 and the second flange 4 are provided with multiple threaded holes, and the first flange 3 and the second flange 4 are connected by bolts that pass through the threaded holes. Based on the precise positioning of each snap-fit ​​structure, the first flange and the second flange are finally fixed by bolts. Combined with the previous snap-fit ​​limit, the overall connection is more stable and reliable, ensuring that the first pipe and the second pipe can be assembled stably.

[0021] The working principle and usage process of this utility model are as follows: When assembling the first pipe 1 and the second pipe 2, the first flange 3 and the second flange 4 are first fitted together, so that the mating block 101 and the mating groove 100 are engaged and connected. The extension pipe 202 is then embedded inside the conical sealing ring 201 for a sealing effect. At this time, the first flange 3 and the second flange 4 are temporarily mated together. Then, the second snap-fit ​​member 302 is pushed, causing it to rotate on the surface of the second flange 4 via the ring 301, and the slider 501 passes through the inside of the groove 500. By sliding, the second snap-fit ​​component 302 can be rotated and engaged with the first snap-fit ​​component 300. At the same time, the limit buckle 401 is pressed and engaged with the limit groove 400, thus fixing the second snap-fit ​​component 302 and the first snap-fit ​​component 300 together. This allows the first flange 3 and the second flange 4 to be accurately engaged and connected, ensuring that the screw holes on the surfaces of the first flange 3 and the second flange 4 are accurately aligned. Then, bolts can be used to tighten them through, allowing the first pipe 1 and the second pipe 2 to be assembled accurately and quickly, avoiding the problem of misalignment of the screw holes.

[0022] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 pipe connection device, comprising a first pipe (1), a second pipe (2) disposed on one side of the first pipe (1), a first flange (3) fixed to the end of the first pipe (1), and a second flange (4) fixed to the end of the second pipe (2), characterized in that: A connecting guide mechanism and a sealing assembly are provided between the first flange (3) and the second flange (4); The connecting guide mechanism includes a mating groove (100) symmetrically opened at the end of the first flange (3) and a mating block (101) symmetrically fixed at the end of the second flange (4), wherein the mating block (101) is engaged with the mating groove (100). The first flange (3) is symmetrically fixed with a first snap-fit ​​member (300), and the second flange (4) is fitted with a ring (301). The ring (301) is symmetrically fixed with a second snap-fit ​​member (302). The second snap-fit ​​member (302) is engaged with the first snap-fit ​​member (300). The end of the second snap-fit ​​member (302) is fixed with a limiting groove (400), and the inside of the first snap-fit ​​member (300) is fixed with a limiting buckle (401), which engages with the limiting groove (400). The second flange (4) has symmetrically opened grooves (500) on its surface, and the second snap-fit ​​member (302) has symmetrically fixed sliders (501) on its inner side, and the sliders (501) are slidably connected to the grooves (500); The sealing assembly includes a tapered groove (200) formed at the end of the first pipe (1) and a tapered sealing ring (201) disposed inside the tapered groove (200). An extension tube (202) is fixed at the end of the second pipe (2), and the extension tube (202) is fitted and connected to the tapered sealing ring (201). Both the first flange (3) and the second flange (4) have multiple threaded holes through their ends, and bolts passing through the threaded holes connect the first flange (3) and the second flange (4).

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