Multi-section sleeve for corrugated pipe connection

Abstract

The utility model relates to the field of pipeline connection structures, in particular to a multi-section sleeve for corrugated pipe connection. The device comprises two sets of outer cylinder assemblies and an inner cylinder, and each set of outer cylinder assembly comprises an outer cylinder, a limiting piece arranged on the outer cylinder and used for being matched with a corrugated pipe for limiting and a positioning table arranged on the inner wall of the outer cylinder; the inner cylinder is coaxially connected between the two outer cylinders. The outer cylinder assemblies are connected to the corrugated pipe, then the inner cylinder is connected between the two outer cylinders, operation is convenient, time is saved, and efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection structures, and in particular to a multi-segment sleeve for corrugated pipe connections. Background Technology

[0002] In water conservancy projects, water pipes need to be pre-buried. Corrugated pipes are generally chosen as drainage pipes for water transportation. Corrugated pipes need to have good weather resistance and structural strength. Corrugated pipes are currently widely used in water supply systems, sewage systems, and municipal drainage. When laying multiple pipes, corrugated pipe connecting structures are needed to connect any two adjacent corrugated pipes to assemble a complete water pipe system.

[0003] Existing corrugated pipes can be connected via a sleeve structure. During connection, the two corrugated pipes are inserted into the sleeve from both sides. However, since the corrugated pipes are generally long and heavy, it is inconvenient to insert them into the sleeve, which is time-consuming and affects construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the background technology by proposing a multi-segment sleeve for corrugated pipe connection. First, the outer cylinder assembly is connected to the corrugated pipe, and then the inner cylinder is connected between the two outer cylinders, which is convenient to operate and saves time and is efficient.

[0005] The technical solution of this utility model is a multi-segment sleeve for corrugated pipe connection, including an outer cylinder assembly and an inner cylinder. Two sets of outer cylinder assemblies are provided. Each set of outer cylinder assemblies includes an outer cylinder, a limiting member disposed on the outer cylinder for cooperating with and limiting the corrugated pipe, and a positioning platform disposed on the inner wall of the outer cylinder. The inner cylinder is coaxially connected between the two outer cylinders.

[0006] Preferably, the limiting element is a snap-fit ​​element, and the outer cylinder has an insertion hole for the snap-fit ​​element to be inserted.

[0007] Preferably, the fastener has a U-shaped structure with both ends extending into the inner side of the outer cylinder.

[0008] Preferably, the limiting element is an undercut provided on the inner wall of the outer cylinder; at least two undercuts are provided and evenly distributed.

[0009] Preferably, the positioning platform is an arc-shaped platform and multiple platforms are evenly arranged around the central axis of the outer cylinder.

[0010] Preferably, the upper half of the outer cylinder has evenly distributed mesh holes, which are located between the inner cylinder and the positioning platform.

[0011] Preferably, an installation ring is integrally provided on the inner wall of the inner cylinder, and a filter screen is provided on the installation ring.

[0012] Preferably, the top of the inner cylinder has a boss, a bearing seat is provided at the boss, a rotating shaft is provided in the inner ring of the bearing seat, a handle is connected to the top of the rotating shaft, a valve plate for sealing or unsealing the inner cylinder is connected to the bottom of the rotating shaft, and a nut B is threadedly fitted on the rotating shaft and pressed against the top of the boss.

[0013] Preferably, the outer or inner cylinder is provided with a set of pressure injection holes and pressure holes.

[0014] Preferably, both the outer and inner cylinders are transparent.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: Before being used for connecting corrugated pipes, the outer cylinder assembly and the inner cylinder are separate. After the two sets of outer cylinder assemblies are installed on the two corrugated pipes, the inner cylinder is heat-fused between the two outer cylinders, making it easy to use this sleeve to connect the two corrugated pipes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the structure when corrugated pipes are connected to both sides in Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0019] Figure 4 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0020] Figure 5 This is a structural schematic diagram of Embodiment 4 of the present invention;

[0021] Figure 6 for Figure 5 A partial structural diagram.

[0022] Reference numerals: 1. Outer cylinder; 101. Insertion hole; 102. Mesh hole; 2. Inner cylinder; 21. Boss; 3. Positioning platform; 4. Rubber ring; 5. Fastener; 6. Mounting ring; 7. Filter screen; 8. Bearing seat; 9. Rotating shaft; 10. Handle; 11. Valve plate. Detailed Implementation

[0023] Example 1

[0024] like Figure 1 and Figure 2 As shown in the figure, the multi-segment sleeve for corrugated pipe connection proposed in this embodiment includes an inner cylinder 2 and two sets of outer cylinder assemblies connected to both ends of the inner cylinder 2.

[0025] Each outer cylinder assembly includes an outer cylinder 1, a limiting component on the outer cylinder 1 for positioning and cooperating with the corrugated pipe, and a positioning platform 3 on the inner wall of the outer cylinder 1. The inner cylinder 2 connects the two outer cylinders 1 via a heat fusion connection. Both the outer cylinder 1 and the inner cylinder 2 are transparent and can be made of transparent plastic, facilitating observation of the corrugated pipe installation status and the internal water flow.

[0026] Positioning platform 3 is an arc-shaped platform with multiple platforms evenly arranged around the central axis of outer cylinder 1. It is used to position the bellows installation position, with the first crest of the bellows head abutting against positioning platform 3. When the multi-segment sleeve and bellows are installed together, the rubber ring 4 fitted at the trough of the bellows is located outside positioning platform 3, i.e., on the side away from inner cylinder 2.

[0027] Furthermore, the positioning platform 3 is an integral structure with a circular projection shape, and it is coaxially arranged with the outer cylinder 1.

[0028] like Figure 1 and Figure 2 As shown, the limiting component is a snap fastener 5, located outside the rubber ring 4. The snap fastener 5 has a U-shaped structure with both ends extending into the inner side of the outer cylinder 1. The outer cylinder 1 has multiple insertion holes 101 for the snap fastener 5 to be inserted, which reduces the material used in the outer cylinder 1. After the bellows is installed to the first crest and abuts against the positioning platform 3, and the outer cylinder 1 and the bellows are sealed together by the rubber ring 4, the two ends of the U-shaped snap fastener 5 are squeezed and inserted into the corresponding insertion hole 101 on the outer cylinder 1 until it is locked at the trough of the bellows for limiting. When the snap fastener 5 is released, it remains in the insertion hole 101 due to its own elasticity and will not fall off.

[0029] In this embodiment, the outer cylinder assembly and the inner cylinder 2 are separate units before being used for connecting the corrugated pipes. First, the two sets of outer cylinder assemblies are installed onto the two corrugated pipes, and then the inner cylinder 2 is heat-fused between the two outer cylinders 1. Compared to the corrugated pipes, the outer cylinder assembly and the inner cylinder 2 are lighter, shorter, easier to move and operate, and facilitate the connection of the two corrugated pipes using this sleeve, shortening installation time and improving construction efficiency.

[0030] Example 2

[0031] This embodiment proposes a multi-segment sleeve for bellows connections. Compared to Embodiment 1, in this embodiment, as follows... Figure 3As shown, the upper half of the outer cylinder 1 has evenly distributed mesh holes 102, located between the inner cylinder 2 and the positioning platform 3. When this sleeve is buried in water-scarce areas such as deserts, rainwater and other water seeping into the ground will seep into the sleeve through the mesh holes 102, thus collecting water within the pipe. After the pipe is buried in the soil, water is transported into the pipe, and the water seeps out through the mesh holes 102 into the soil, treating the salinization of desert saline-alkali land. Alternatively, the pipe can be directly installed on the ground, with the mesh holes 102 above the ground, allowing for direct sprinkler irrigation of plants, suitable for irrigating farmland crops.

[0032] Example 3

[0033] This embodiment proposes a multi-segment sleeve for bellows connections. Compared to Embodiment 1, in this embodiment, as follows... Figure 4 As shown, an installation ring 6 is integrally formed on the inner wall of the inner cylinder 2, and a filter screen 7 is installed on the installation ring 6. The filter screen 7 can filter impurities in the water transported in the pipeline.

[0034] Example 4

[0035] This embodiment proposes a multi-segment sleeve for bellows connections. Compared to Embodiment 1, in this embodiment, as follows... Figure 5 and Figure 6 As shown, the inner cylinder 2 has a boss 21 at its top. A bearing seat 8 is provided at the boss 21, and the boss 21 has a groove for the bearing seat 8 to be inserted into. The bearing seat 8 is fitted into the groove. A rotating shaft 9 is provided on the inner ring of the bearing seat 8. A handle 10 is connected to the top of the rotating shaft 9, and a valve plate 11 for sealing or unsealing the inner cylinder 2 is connected to the bottom of the rotating shaft 9. The rotating shaft 9 is screwed into the countersunk hole of the valve plate 11 through a threaded fit, and a nut A threadedly fitted on the outside of the rotating shaft 9 is provided in the countersunk hole to lock the rotating shaft 9 and the valve plate 11.

[0036] Rotating the handle 10 drives the rotating shaft 9 to rotate, which in turn drives the valve plate 11 to rotate, thus controlling the opening and closing of the inner cylinder 2. The handle 10 is positioned in the same direction as the valve plate 11. By observing the position of the handle 10, the position of the valve plate 11 can be determined, facilitating accurate adjustment of the valve plate 11's position.

[0037] In addition, a nut B is threaded onto the rotating shaft 9. After the valve plate 11 is adjusted to the correct position, the nut B is rotated, and the nut B abuts against the bearing seat 8, thereby preventing the handle 10 and the valve plate 11 from deflecting.

[0038] Example 5

[0039] This embodiment proposes a multi-segment sleeve for corrugated pipe connection. Compared with the first embodiment, in this embodiment, the limiting component is a buckle set on the inner wall of the outer cylinder 1. There are at least two buckles, which are evenly distributed. The buckles are used to limit the corrugation at the trough of the corrugated pipe. The buckles and the outer cylinder 1 can be integrally formed or separate structures that are fixedly connected.

[0040] Example 6

[0041] This embodiment proposes a multi-segment sleeve for bellows connection. Compared to Embodiment 1, in this embodiment, a set of pressure injection holes and pressure holes are provided on the outer cylinder 1 or the inner cylinder 2. That is, a set of pressure injection holes and pressure holes are provided on one outer cylinder 1, or a set of pressure injection holes and pressure holes are provided on the inner cylinder 2. If the pressure injection holes and pressure holes are located on the outer cylinder 1, their positions are located in the outer region near one end of the inner cylinder 2 after the bellows is installed, rather than at the trough or crest of the bellows. Otherwise, the detection medium cannot be effectively injected. The detection medium can be air or water.

[0042] Both the pressure injection port and the pressure port are sealed with sealing plugs by default. When it is necessary to test the sealing performance of this sleeve, remove the sealing plugs, seal the outer ends of the two bellows connected to this sleeve, connect the pressure injection port to an external water injection device or an air injection device, and connect the pressure port to an external pressure testing device. Inject water into the pipeline through the water injection device or add air into the pipeline through the air injection device. After the injection is completed, test the water pressure or air pressure through the corresponding pressure testing device to test the water tightness of the sleeve's sealing connection. If the tested pressure value is lower than the preset value, it indicates that a leak has occurred. If the tested pressure value reaches the preset value, it indicates that the sleeve is of qualified quality and can achieve an effective water tightness seal. By testing the sealing connection performance of each individual sleeve, the water tightness of the individual sleeve can be detected, facilitating timely handling and ensuring construction progress, as well as facilitating subsequent pipeline maintenance.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A multi-segment sleeve for corrugated pipe connections, characterized in that, include: The outer cylinder assembly is provided in two sets. Each set of the outer cylinder assembly includes an outer cylinder (1), a limiting member provided on the outer cylinder (1) for cooperating with the bellows for limiting the position, and a positioning platform (3) provided on the inner wall of the outer cylinder (1). The inner cylinder (2) is coaxially connected between the two outer cylinders (1).

2. The multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, The limiting component is a snap fastener (5), and the outer cylinder (1) has an insertion hole (101) for the snap fastener (5) to be inserted.

3. A multi-segment sleeve for corrugated pipe connection according to claim 2, characterized in that, The fastener (5) has a U-shaped structure and both ends extend into the inner side of the outer cylinder (1).

4. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, The limiting element is an undercut set on the inner wall of the outer cylinder (1); there are at least two undercuts and they are evenly distributed.

5. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, The positioning platform (3) is an arc-shaped platform and multiple platforms are evenly arranged around the central axis of the outer cylinder (1).

6. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, The upper half of the outer cylinder (1) has evenly distributed mesh holes (102), which are located between the inner cylinder (2) and the positioning platform (3).

7. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, An installation ring (6) is integrally provided on the inner wall of the inner cylinder (2), and a filter screen (7) is provided on the installation ring (6).

8. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, The inner cylinder (2) has a boss (21) at the top, a bearing seat (8) is provided at the boss (21), a rotating shaft (9) is provided on the inner ring of the bearing seat (8), a handle (10) is connected to the top of the rotating shaft (9), a valve plate (11) for sealing or unsealing the inner cylinder (2) is connected to the bottom of the rotating shaft (9), and a nut B is threaded on the rotating shaft (9) and pressed against the top of the boss (21).

9. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, A set of pressure injection holes and pressure holes are provided on the outer cylinder (1) or the inner cylinder (2).

10. A multi-segment sleeve for corrugated pipe connection according to claim 1, characterized in that, Both the outer cylinder (1) and the inner cylinder (2) are transparent.

Images