Water conservancy pipeline convenient to butt joint for water conservancy project

Abstract

The utility model relates to the technical field of pipeline butt joint, and discloses a water conservancy pipeline convenient to butt joint for a water conservancy project, which comprises a first flange plate and a second flange plate, the first flange plate and the second flange plate are connected through a connecting fastener, the connecting fastener comprises a shell, one side of the shell is connected with the first flange plate through a connecting block, and the other side of the shell is connected with the second flange plate. A connecting rack is slidably connected into the shell, the other end of the connecting rack is connected with an L-shaped fastener through a rotating assembly, the L-shaped fastener is connected with the second flange plate, the rotating assembly comprises a connecting T plate fixedly connected to one side of the L-shaped fastener, one side of the connecting T plate is connected with a rotating shaft, and a rotating block is arranged on the side wall of the rotating shaft; according to the scheme, the bolt hole aligning device has the beneficial effects that the bolt holes of the flange plate are aligned while the distance between the two pipelines is shortened, and the problem that the hole aligning process is difficult due to the fact that the pipelines are heavy in the process of aligning the bolt holes in the flange plate is solved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection technology, specifically a water conservancy pipeline for easy connection in water conservancy projects. Background Technology

[0002] Water conservancy pipelines are tubular facilities used in water conservancy projects to transport, distribute, and discharge water or other fluid media. They are key infrastructure for water resource development and utilization. Their functions encompass urban and rural water supply, agricultural irrigation, drainage and flood control, hydropower generation, and ecological water replenishment. Based on their purpose, they are classified as water conveyance pipes, drainage pipes, and irrigation pipes. Materials include metals, plastics, and concrete. Water flow patterns are classified as pressure flow and gravity flow. Design must consider hydraulic calculations, material selection, and corrosion prevention and maintenance. They are crucial for ensuring water supply security, flood control and drainage, and ecological protection, and are developing towards water conservation, intelligentization, and greening.

[0003] Flange connections are typically used to connect water pipelines. Pipelines are connected using flanges, bolts, and gaskets. The core advantages of flange connections are convenient installation and disassembly, easy maintenance and repair, strong sealing performance, and effective resistance to high pressure, vibration, and corrosive environments. Flange connections can adapt to different pipe diameters and materials (metal / non-metal), offering high compatibility, a wide pressure range (applicable to low-pressure to high-pressure scenarios), reliable connection strength, and reduced risk of leakage. Flange connections are particularly suitable for water conservancy projects that require frequent disassembly and have complex operating conditions (such as diameter changes, branches, and valve installations), combining practicality and economy.

[0004] During flange connection, to ensure the stability of the flange connection, it is usually necessary to ensure the alignment of bolt holes. However, in the existing technology, the alignment of bolt holes in large water conservancy pipeline flanges is highly dependent on manual operation and lacks mechanical assistance, which makes it difficult to guarantee the accuracy of the hole alignment. Misalignment is easily caused by the weight of the pipeline, increasing the risk of leakage. At the same time, the construction efficiency is low, requiring repeated adjustments, and there are safety hazards in high-altitude hoisting operations. It is difficult to meet the needs of rapid and accurate installation under complex working conditions. Especially in high-pressure and vibration environments, bolt hole misalignment may also cause structural failure or media leakage accidents.

[0005] In response, we propose a water conservancy pipeline that is easy to connect to in water conservancy projects. Utility Model Content

[0006] This utility model provides a water conservancy pipeline for easy connection in water conservancy projects. It has the beneficial effect of aligning the bolt holes of the flange by reducing the distance between two pipelines, thus solving the problem mentioned in the background art where the bolt hole alignment process is difficult due to the bulkiness of the pipeline itself.

[0007] This utility model provides the following technical solution: a water conservancy pipeline for easy connection in water conservancy projects, including a No. 1 pipeline, a No. 2 pipeline, a No. 1 flange and a No. 2 flange, wherein the No. 1 flange and the No. 2 flange are connected by a connecting fastener.

[0008] The connecting fastener includes a housing, one side of which is connected to the first flange via a connecting block. A connecting rack is slidably connected inside the housing, and the other end of the connecting rack is connected to an L-shaped fastener via a rotating assembly. The L-shaped fastener is inserted into a fastener slot, which is located on one side of the second flange.

[0009] The rotating assembly includes a connecting T-plate fixedly connected to one side of the L-shaped fastener, a rotating shaft connected to one side of the connecting T-plate, a rotating block provided on the side wall of the rotating shaft, and the rotating block installed on one side of the connecting rack.

[0010] As an optional solution for water conservancy pipelines that are easy to connect in water conservancy projects according to this utility model, the connecting fastener includes an installation groove opened on one side of the first flange, a connecting shaft is fixedly connected in the installation groove, the connecting block is rotatably connected to the side wall of the connecting shaft, a housing is fixedly connected to the top of the connecting block, and a rotating gear is meshed with the connecting rack, the rotating gear being disposed in the housing.

[0011] As an optional solution for a water conservancy pipeline for easy connection in water conservancy engineering according to the present utility model, wherein: an extension block is fixedly connected to one side of the connecting T-plate, the rotating shaft is fixedly connected between the extension blocks, and a limit plate is fixedly connected to the side of the connecting rack near the rotating block.

[0012] As an optional solution for a water conservancy pipeline for easy connection in water conservancy engineering according to the present utility model, wherein: a labor-saving component is provided on the top of the rotating gear, the labor-saving component includes a gear shaft fixedly connected to the top of the rotating gear, the gear shaft passes through the housing, a labor-saving block is fixedly connected to the top of the gear shaft, a slot is provided on one side of the labor-saving block, and a labor-saving rod is slidably connected in the slot.

[0013] As an optional solution for a water conservancy pipeline that is easy to connect in water conservancy engineering, as described in this utility model, the two ends of the labor-saving rod are fixedly connected with anti-detachment balls.

[0014] As an optional solution for water conservancy pipelines that are easy to connect in water conservancy projects according to this utility model, wherein: one side of the first pipeline is connected to a first flange, and one side of the second pipeline is connected to a second flange.

[0015] As an optional solution for water conservancy pipelines that are easy to connect in water conservancy projects according to this utility model, wherein: the position of the fastener groove corresponds to the position of the bolt hole in the second flange, and the fastener groove is arranged around the circumference of the second flange.

[0016] This utility model has the following beneficial effects:

[0017] 1. This water conservancy project uses easily connected water pipes and fasteners as the core transmission mechanism. Through a "gear-rack-fastener" linkage design, it achieves efficient closing and precise alignment of the flanges. The shell is rotatably connected to the mounting groove of the first flange via a connecting block, allowing the shell to swing axially around the connecting shaft, compensating for angular deviations when the two pipes are connected, and avoiding rigid collisions. The connecting rack inside the shell meshes with the rotating gear, and the gear is driven to rotate through a labor-saving component, converting manual labor into a stable linear pulling force, uniformly closing the distance between the two flanges. The L-shaped fastener engages with the fastener groove of the second flange, ensuring uniform axial force during the closing process. The bolt holes are synchronously aligned as the flanges approach. This structure replaces manual pushing and pulling with mechanical transmission, solving the problem of time-consuming hole alignment caused by the difficulty of moving large pipes. It has both angle self-adaptation capability and precise alignment effect, significantly improving docking efficiency and reliability.

[0018] 2. This water conservancy project uses easily connected water pipes. The rotating component adopts a flexible connection design of "rotating shaft-rotating block-limiting plate", which gives the L-shaped fastener the ability to dynamically adjust the angle during the docking process. The connecting T-plate fixes the rotating shaft through the extension block. The rotating block on the shaft is embedded in the connecting rack, allowing the L-shaped fastener to rotate relative to the rack. This adapts to slight tilting of the flange or misalignment, and avoids the fastener getting stuck. The limiting plate restricts the sliding range of the rotating block, ensuring transmission stability and preventing the component from falling off. When the connecting rack is pulled back, the rotating block is driven by the shell to deflect the connecting T-plate, causing the No. 2 flange to rotate circumferentially during the approach. By utilizing the positional correspondence between the fastener groove and the bolt hole, the "closer distance" and "angle correction" are completed simultaneously. This design solves the problem of axial deviation caused by the weight of the pipe in traditional docking by forcibly aligning the bolt holes through mechanical linkage, ensuring successful docking on the first attempt and improving the accuracy and convenience of water conservancy project pipeline installation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 4For the present utility model Figure 3 Enlarged structural diagram at point B.

[0023] Figure 5 This is a schematic diagram of the connecting fastener structure of this utility model.

[0024] Figure 6 This is a schematic diagram of the internal structure of the connecting fastener of this utility model.

[0025] In the diagram: 1. Pipeline No. 1; 2. Pipeline No. 2; 3. Flange No. 1; 4. Flange No. 2; 5. Connecting fastener; 51. Mounting groove; 52. Connecting shaft; 53. Connecting block; 54. Housing; 55. Connecting rack; 56. L-shaped fastener; 57. Fastener groove; 58. Rotating gear; 6. Rotating assembly; 61. Extension block; 62. Rotating shaft; 63. Rotating block; 64. Limiting plate; 65. Connecting T-plate; 7. Labor-saving assembly; 71. Gear shaft; 72. Labor-saving block; 73. Slot; 74. Labor-saving rod; 75. Anti-ball detachment. Detailed Implementation

[0026] 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.

[0027] This embodiment aims to facilitate the resolution of the problem of difficult bolt hole alignment within flanges due to the weight of the pipe itself. Please refer to [link to relevant documentation]. Figures 1 to 6 A water conservancy pipeline for easy connection in water conservancy projects includes a first pipeline 1, a second pipeline 2, a first flange 3 and a second flange 4, and the first flange 3 and the second flange 4 are connected by a connecting fastener 5.

[0028] One side of pipe 1 is connected to flange 3, and one side of pipe 2 is connected to flange 4.

[0029] The connecting fastener 5 includes a housing 54. One side of the housing 54 is connected to the first flange 3 via a connecting block 53. A connecting rack 55 is slidably connected inside the housing 54. The other end of the connecting rack 55 is connected to an L-shaped fastener 56 via a rotating assembly 6. The L-shaped fastener 56 is inserted into a fastener groove 57, which is located on one side of the second flange 4.

[0030] The connecting fastener 5 includes a mounting groove 51 opened on one side of the first flange 3. A connecting shaft 52 is fixedly connected in the mounting groove 51. A connecting block 53 is rotatably connected to the side wall of the connecting shaft 52. A housing 54 is fixedly connected to the top of the connecting block 53. A connecting rack 55 is meshed with a rotating gear 58, which is disposed in the housing 54.

[0031] The position of the fastener groove 57 corresponds to the position of the bolt hole inside the second flange 4, and the fastener groove 57 is set around the circumference of the second flange 4.

[0032] The rotating assembly 6 includes a connecting T-plate 65 fixedly connected to one side of the L-shaped fastener 56. A rotating shaft 62 is connected to one side of the connecting T-plate 65. A rotating block 63 is provided on the side wall of the rotating shaft 62. The rotating block 63 is installed on one side of the connecting rack 55.

[0033] An extension block 61 is fixedly connected to one side of the connecting T-plate 65, and a rotating shaft 62 is fixedly connected between the extension blocks 61. A limit plate 64 is fixedly connected to the side of the connecting rack 55 near the rotating block 63.

[0034] The connecting fastener 5 is designed to connect two flanges. By rotating the gear 58, the two flanged pipes can be pulled closer together. Before connection, the connecting rack 55, installed in the housing 54 on the surface of flange 3, is pulled out. Under the rotation of the rotating assembly 6, the L-shaped fastener 56 is engaged in the fastener slot 57 of flange 4. At this time, the rotating gear 58 is driven to rotate, causing the connecting rack 55 to pull the L-shaped fastener 56 back through the connection of the rotating assembly 6. During this process, the two flanges are continuously pulled closer. During this process, when the rotating assembly 6 moves to... When the housing 54 approaches the second flange 4, the rotating block 63 and the connecting T-plate 65 continuously deflect under the contact of the housing 54 until the connecting rack 55 and the connecting T-plate 65 are flush with each other. At this time, the L-shaped fastener 56, which is fixedly connected to the connecting T-plate 65, will drive the second flange 4 to rotate as it approaches the first flange 3. Since the opening position of the fastener groove 57 corresponds to the position of the bolt hole, the rotation of the rotating assembly 6 and the pulling of the connecting fastener 5 make the bolt holes of the two flanges align after they come into contact with each other, so as to facilitate the accuracy of subsequent bolt connection.

[0035] By utilizing the deflection characteristics of the rotating component 6 during the approach process, the flange is driven to rotate axially synchronously, automatically compensating for the angular deviation between the two pipes. This ensures that the fastener groove 57 and the bolt hole position gradually align as the flange approaches, solving the problem of axial offset and hole misalignment caused by the weight of the pipes during traditional manual hole alignment.

[0036] The top of the rotating gear 58 is provided with a force-saving component 7. The force-saving component 7 includes a gear shaft 71 fixedly connected to the top of the rotating gear 58. The gear shaft 71 passes through the housing 54. The top of the gear shaft 71 is fixedly connected with a force-saving block 72. A slot 73 is opened on one side of the force-saving block 72. A force-saving rod 74 is slidably connected in the slot 73.

[0037] The two ends of the effort-saving lever 74 are fixedly connected with anti-detachment balls 75.

[0038] The labor-saving component 7 connects the rotating gear 58 to the labor-saving block 72 via the gear shaft 71. Combined with the sliding labor-saving rod 74 and anti-detachment balls 75 at both ends, it significantly reduces the operating torque using the lever principle, allowing the operator to drive the gear with less force, which in turn drives the connecting rack 55 to pull the heavy flange. Its advantages include significantly reducing the labor intensity of manually connecting large pipelines, especially suitable for scenarios where it is inconvenient to apply force, such as at heights or in confined spaces. A single person can complete the flange pulling and hole alignment operations that traditionally require multiple people, improving construction convenience and efficiency. At the same time, the structural design ensures that the labor-saving rod 74 is stable and will not fall off, enhancing the safety and reliability of the operation process and avoiding docking deviations or time-consuming and labor-intensive problems caused by insufficient manpower, achieving labor-saving, efficient, and precise pipeline docking operations.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hydraulic pipeline for hydraulic engineering, which is easy to butt joint, comprising a first pipeline (1), a second pipeline (2), a first flange (3) and a second flange (4), characterized in that: The No. 1 flange (3) and the No. 2 flange (4) are connected by a fastener (5); The connecting fastener (5) includes a housing (54), one side of which is connected to the first flange (3) via a connecting block (53). A connecting rack (55) is slidably connected inside the housing (54), and the other end of the connecting rack (55) is connected to an L-shaped fastener (56) via a rotating assembly (6). The L-shaped fastener (56) is inserted into a fastener groove (57), which is located on one side of the second flange (4). The rotating assembly (6) includes a connecting T-plate (65) fixedly connected to one side of the L-shaped fastener (56), a rotating shaft (62) is connected to one side of the connecting T-plate (65), a rotating block (63) is provided on the side wall of the rotating shaft (62), and the rotating block (63) is installed on one side of the connecting rack (55).

2. The water conservancy pipeline convenient for docking according to claim 1, characterized in that: The connecting fastener (5) includes a mounting groove (51) formed on one side of the first flange (3), a connecting shaft (52) is fixedly connected in the mounting groove (51), the connecting block (53) is rotatably connected to the side wall of the connecting shaft (52), a housing (54) is fixedly connected to the top of the connecting block (53), and a rotating gear (58) is meshed with the connecting rack (55), the rotating gear (58) is disposed in the housing (54).

3. The water conservancy project of claim 1, wherein: An extension block (61) is fixedly connected to one side of the connecting T-plate (65), and the rotating shaft (62) is fixedly connected between the extension blocks (61). A limit plate (64) is fixedly connected to the side of the connecting rack (55) near the rotating block (63).

4. The water conservancy project of claim 2, wherein: The top of the rotating gear (58) is provided with a force-saving component (7). The force-saving component (7) includes a gear shaft (71) fixedly connected to the top of the rotating gear (58). The gear shaft (71) passes through the housing (54). The top of the gear shaft (71) is fixedly connected with a force-saving block (72). A slot (73) is provided on one side of the force-saving block (72). A force-saving rod (74) is slidably connected in the slot (73).

5. The water conservancy project according to claim 4, characterized in that: The two ends of the effort-saving lever (74) are fixedly connected with anti-detachment balls (75).

6. The water conservancy project of claim 1, wherein: One side of the first pipe (1) is connected to a first flange (3), and one side of the second pipe (2) is connected to a second flange (4).

7. The water conservancy project of claim 1, wherein: The position of the fastener groove (57) corresponds to the position of the bolt hole in the second flange (4), and the fastener groove (57) is arranged around the circumference of the second flange (4).

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