Buried drain pipe connecting device

Abstract

The utility model discloses a buried drain pipe connecting device which comprises a main connecting pipe and a water pipe body, mounting pipes are arranged on the outer sides of the two ends of the main connecting pipe, circular-truncated-cone-shaped fixing pieces are arranged on the outer sides of the mounting pipes, butt joint pipes are arranged on the two sides of the main connecting pipe, first limiting rings are arranged on the inner sides of the mounting pipes, and annular grooves are formed in one sides of the first limiting rings. A butt joint rubber ring is arranged on the top of the butt joint pipe, a first sealing rubber ring is arranged on the other side of the first limiting ring, an arc-shaped fixing piece is arranged on the rear side of the installation pipe, and a second sealing rubber ring is arranged on one side in the arc-shaped fixing piece. And when the mounting pipe is fixed to the water pipe body, the connected drainage pipe has a better sealing effect through the first sealing rubber ring and the second sealing rubber ring, and the butt joint rubber ring is in butt joint with the annular groove, so that the joint of the main connecting pipe and the mounting pipe is sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipe connection, in particular to an underground drainage pipe connection device. Background Art

[0002] Buried rigid PVC spiral-wound drainage pipe is a new type of drainage pipe material. It is made of rigid PVC and enhanced through a spiral-wound process. Key features of this type of pipe include corrosion resistance, abrasion resistance, high strength, and light weight. During production, PVC material is formed into a tube through an extruder. One or more layers of PVC are then wrapped around the tube to create a multi-layered structure. This structure increases the strength and rigidity of the pipe while reducing its weight and cost.

[0003] When connecting underground drainage pipes, the existing method usually adopts a hot-melt method to connect the water pipes on both sides. However, this method is not only time-consuming, but also easily causes the diameter of the welding position to become smaller, thereby blocking the water flow. Utility Model Content

[0004] The purpose of the present utility model is to provide an underground drainage pipe connecting device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A buried drainage pipe connection device includes a main connecting pipe and a water pipe body. Mounting pipes are provided on the outside of both ends of the main connecting pipe. The mounting pipes are installed on the outside of the top of the water pipe body. A truncated cone-shaped fixing piece is provided on the outside of the mounting pipe. Butt pipes are provided on both sides of the main connecting pipe. A first limiting ring is provided on the inside of the mounting pipe. An annular groove is provided on one side of the first limiting ring. A butt rubber ring is provided on the top of the butt pipe. The butt rubber ring is connected to the annular groove. A first sealing rubber ring is provided on the other side of the first limiting ring. An arc-shaped fixing plate is provided on the rear side of the mounting pipe. A second sealing rubber ring is provided on one side inside the arc-shaped fixing plate.

[0007] In a preferred embodiment of the present invention, a first thread strip is provided on the outer side of the butt joint tube, a first thread groove is provided on the outer side of the first limiting ring, and the first thread strip is threadedly connected to the first thread groove.

[0008] In a preferred embodiment of the present invention, a second limiting ring is provided at the rear side of the first threaded strip, and the second limiting ring is connected to the top of the mounting tube.

[0009] In a preferred embodiment of the present invention, the first sealing rubber ring is attached to the top of the water pipe body, and the second sealing rubber ring is attached to the outside of the water pipe body.

[0010] In a preferred embodiment of the present invention, a shrinking rubber ring is provided on the other side of the interior of the arc-shaped fixing plate, and the shrinking rubber ring slides on the water pipe body and shrinks on the water pipe body.

[0011] In a preferred embodiment of the present invention, a sliding opening is provided on one side of the interior of the fixing member, and the sliding opening slides on the water pipe body.

[0012] In a preferred embodiment of the present invention, a second thread strip is provided on the outer side of the arc-shaped fixing plate, a second thread groove with a gradually changing thread height is provided on the inner side of the fixing member, and the second thread strip is threadedly connected to the second thread groove.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention.

[0014] Beneficial effect: The device shrinks the shrinking rubber ring on the water pipe body to perform preliminary fixation, and rotates on the second thread strip through the second thread groove, and the gradual structure of the second thread groove drives the arc-shaped fixing piece to shrink, thereby driving the installation pipe to be fixed on the water pipe. When the installation pipe is fixed on the water pipe body, the first sealing rubber ring is used to perform the first seal, and the second sealing rubber ring is used to perform the second seal, so that the connected drainage pipe has a better sealing effect, the installation pipe is connected through the main connecting pipe, and the annular groove is docked by the docking rubber ring, so that the connection between the main connecting pipe and the installation pipe is sealed.

[0015] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the main structure of an underground drainage pipe connection device;

[0018] Figure 2 This is a schematic diagram of the main structure connection in an underground drainage pipe connection device;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of a main connecting pipe in an underground drainage pipe connecting device;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the installation pipe and fixing parts in an underground drainage pipe connection device.

[0021] In the figure: 1. Main connecting pipe; 11. Water pipe body; 12. Butt-joint pipe; 13. First thread strip; 14. Butt-joint rubber ring; 2. Mounting pipe; 21. First thread groove; 22. First limiting ring; 23. Annular groove; 24. First sealing rubber ring; 3. Arc-shaped fixing plate; 31. Second sealing rubber ring; 32. Shrinkage rubber ring; 33. Second thread strip; 34. Second limiting ring; 4. Fixing piece; 41. Sliding mouth; 42. Second thread groove. DETAILED DESCRIPTION

[0022] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0023] Please refer to Figure 1-4 The utility model discloses an underground drainage pipe connecting device, including a main connecting pipe 1 and a water pipe body 11. The main connecting pipe 1 is the main structure of the device, which is used to connect other structures on both sides, thereby connecting the drainage pipes on both sides. The water pipe body 11 is the drainage pipe. When docking, first use a tool to cut the inner side of the water pipe body 11 flat, so as to facilitate subsequent sealing. Mounting pipes 2 are provided on the outside of both ends of the main connecting pipe 1. The mounting pipe 2 is installed on the outside of the top of the water pipe body 11. The mounting pipe 2 is used to seal the water pipe bodies 11 on both sides. Docking pipes 12 are provided on both sides of the main connecting pipe 1, and a first threaded strip 13 is provided on the outside of the docking pipe 12. A first limiting ring 22 is provided on the inside of the mounting pipe 2, and a first threaded groove 21 is provided on the outside of the first limiting ring 22. The first threaded strip 13 is threadedly connected to the first threaded groove 21, and the first threaded groove 21 is connected through the first threaded strip 13, so that the main connecting pipe 1 is connected to the mounting pipe 2.

[0024] A second limiting ring 34 is provided on the rear side of the first threaded strip 13, that is, the outer side of the docking tube 12 is on the first limiting ring 22, and the second limiting ring 34 docks the top of the mounting tube 2. An annular groove 23 is provided on one side of the first limiting ring 22, and a docking rubber ring 14 is provided on the top of the docking tube 12, that is, the annular groove 23 is docked by the docking rubber ring 14, so that the connection between the main connecting pipe 1 and the mounting tube 2 is sealed, and a first sealing rubber ring 24 is provided on the other side of the first limiting ring 22, and an arc-shaped fixing plate 3 is provided on the rear side of the mounting tube 2. A second sealing rubber ring 31 is provided on one side of the inner side of the arc-shaped fixing plate 3, the first sealing rubber ring 24 is attached to the top of the water pipe body 11, and the second sealing rubber ring 31 is attached to the outside of the water pipe body 11, so that when the mounting tube 2 is fixed on the water pipe body 11, the first sealing is performed by the first sealing rubber ring 24, and the second sealing is performed by the second sealing rubber ring 31, so that the connected drainage pipe has a better sealing effect.

[0025] The second thread groove 42 is provided on the inner side of the fixing piece 4, and the second thread strip 33 is provided on the inner side of the fixing piece 4. The second thread strip 33 is provided on the outer side of the fixing piece 4, and the second thread groove 42 is provided on the inner side of the fixing piece 4. The second thread strip 33 is threadedly connected with the second thread groove 42, that is, the shrinkage rubber ring 32 slides on the water pipe body 11, thereby driving the first limiting ring 22 on the inner side of the fixing pipe 2 to be at the top of the water pipe and shrinking on the water pipe body 11 through the shrinkage rubber ring 32, thereby performing preliminary fixation, sliding on the water pipe body 11 through the sliding mouth 41, so that the fixing piece 4 slides to the outer side of the curved fixing piece 3, and rotates on the second thread strip 33 through the second thread groove 42, and the gradual structure of the second thread groove 42, so that it drives the curved fixing piece 3 to shrink, thereby driving the fixing pipe 2 to be fixed on the water pipe.

[0026] The working principle of the present invention is as follows: when the device is used, the inner side of the water pipe body 11 is first cut flat with a tool, the fixing piece 4 is installed on the water pipe, and the installation pipe 2 is installed on the outer side of the top of the water pipe body 11, and the shrinking rubber ring 32 is slid on the water pipe body 11, thereby driving the first limiting ring 22 on the inner side of the installation pipe 2 to be at the top of the water pipe, and shrinking the shrinking rubber ring 32 on the water pipe body 11, thereby performing preliminary fixation, sliding on the water pipe body 11 through the sliding mouth 41, so that the fixing piece 4 slides to the outside of the arc-shaped fixing piece 3, and rotates on the second thread strip 33 through the second thread groove 42, as well as the gradual structure of the second thread groove 42, Thereby, it drives the arc-shaped fixing piece 3 to contract, thereby driving the installation pipe 2 to be fixed on the water pipe. When the installation pipe 2 is fixed on the water pipe body 11, the first sealing rubber ring 24 is used for the first sealing, and the second sealing rubber ring 31 is used for the second sealing, so that the connected drain pipe has a better sealing effect. The first threaded groove 21 is connected by the first threaded strip 13, so that the main connecting pipe 1 is connected to the installation pipe 2. The annular groove 23 is docked by the docking rubber ring 14, so that the connection between the main connecting pipe 1 and the installation pipe 2 is sealed. The installation pipe 2 on the other side is first installed on the main connecting pipe 1, and then installed on the water pipe on the other side in the same way, so as to connect the water pipes on both sides.

[0027] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An underground drainage pipe connection device, comprising a main connecting pipe (1) and a water pipe body (11), characterized in that: Mounting tubes (2) are provided on the outside of both ends of the main connecting tube (1), the mounting tubes (2) are mounted on the outside of the top of the water pipe body (11), a truncated cone-shaped fixing piece (4) is provided on the outside of the mounting tube (2), butt-jointing tubes (12) are provided on both sides of the main connecting tube (1), a first limiting ring (22) is provided on the inside of the mounting tube (2), an annular groove (23) is provided on one side of the first limiting ring (22), a butt-jointing rubber ring (14) is provided on the top of the butt-jointing tube (12), the butt-jointing rubber ring (14) is butt-jointed with the annular groove (23), a first sealing rubber ring (24) is provided on the other side of the first limiting ring (22), an arc-shaped fixing plate (3) is provided on the rear side of the mounting tube (2), and a second sealing rubber ring (31) is provided on one side inside the arc-shaped fixing plate (3).

2. The underground drainage pipe connection device according to claim 1, characterized in that: A first thread strip (13) is provided on the outside of the butt joint tube (12), a first thread groove (21) is provided on the outside of the first limiting ring (22), and the first thread strip (13) and the first thread groove (21) are threadedly connected.

3. The underground drainage pipe connection device according to claim 2, characterized in that: A second limiting ring (34) is provided on the rear side of the first threaded strip (13), and the second limiting ring (34) is connected to the top of the mounting tube (2).

4. The underground drainage pipe connection device according to claim 1, characterized in that: The first sealing rubber ring (24) is attached to the top of the water pipe body (11), and the second sealing rubber ring (31) is attached to the outside of the water pipe body (11).

5. The underground drainage pipe connection device according to claim 1, characterized in that: A shrinking rubber ring (32) is provided on the other side of the interior of the arc-shaped fixing plate (3), and the shrinking rubber ring (32) slides on the water pipe body (11), and the shrinking rubber ring (32) shrinks on the water pipe body (11).

6. The underground drainage pipe connection device according to claim 1, characterized in that: A sliding opening (41) is provided on one side of the interior of the fixing member (4), and the sliding opening (41) slides on the water pipe body (11).

7. The underground drainage pipe connection device according to claim 1, characterized in that: A second thread strip (33) is provided on the outside of the arc-shaped fixing piece (3), a second thread groove (42) with a gradually changing thread height is provided on the inside of the fixing piece (4), and the second thread strip (33) and the second thread groove (42) are threadedly connected.

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