Water-saving type environment-friendly plastic pipe connecting pipe fitting

Abstract

The utility model discloses a water-saving environment-friendly plastic pipe connecting pipe fitting, and relates to the technical field of pipe connection, the water-saving environment-friendly plastic pipe connecting pipe fitting comprises a first connecting disc, a second connecting disc and a plastic pipe, one side of the first connecting disc and one side of the second connecting disc are respectively provided with a first connecting pipe, and the center of the first connecting disc is provided with a mounting hole; a first connecting pipe is arranged on one side of the first connecting disc, a second connecting pipe is arranged on the other side of the second connecting disc, threads are arranged on the inner wall of the mounting hole and the outer wall of the second connecting pipe, a lining ring is arranged in the first connecting pipe, water swelling rubber is arranged at the bottom of the lining ring, and a locking bolt is arranged outside the first connecting pipe. The number of the locking bolts is two, the locking bolts are in threaded connection with the first connecting pipe, the connecting pipe fitting and a pipe are connected in an inserted mode, screws are used for limiting, a connecting gap is filled with water swelling rubber, the connecting sealing performance of the pipe fitting and the pipe is improved, the connecting pipe fitting can be repeatedly used, and the using effect of the connecting pipe fitting is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, specifically to a water-saving and environmentally friendly plastic pipe connection fitting. Background Technology

[0002] Pipes are materials used to make pipe fittings. Plastic pipes are chemical building materials made primarily of plastic resin, supplemented with stabilizers, lubricants, etc., through extrusion molding. During installation, plastic pipes need to be connected to adjacent pipes using fittings to extend the pipe length. Fittings are an indispensable part of piping systems, playing a crucial role in connection, flow control, diameter changes, flow branching, and sealing.

[0003] Chinese Patent Publication No. CN211010243U, authorized on July 14, 2020, discloses a pipe connection fitting, including a first connecting pipe, with second connecting pipes threaded to both sides of the inner cavity of the first connecting pipe. One end of the second connecting pipe, away from the inner cavity of the first connecting pipe, extends to the outside of the first connecting pipe. A ring is fixedly connected to the inner cavity of the first connecting pipe, and a sealing ring is provided on the side of the ring near the second connecting pipe. A sleeve is fitted onto the surface of the second connecting pipe, with a threaded hole on its surface. A first threaded rod penetrates the surface of the sleeve, and one end of the first threaded rod penetrates the threaded hole and extends into the inner cavity of the sleeve, where a clamping ring is movably connected. This utility model has the advantages of good sealing performance and stable pipe connection, solving the problems of poor sealing performance, easy leakage, and inability to reinforce pipes, thus reducing the stability of pipe connections, which are problems with existing pipe connectors.

[0004] Existing pipe fittings are connected by applying adhesive to the inner wall of the fitting and the outer wall of the pipe. Once a leak occurs at the connection, the adhesive adheres to the inner wall of the fitting and cannot be reused. The fitting needs to be replaced and reconnected to the pipe, which reduces the effectiveness of the fitting and fails to meet the usage requirements. Utility Model Content

[0005] The purpose of this utility model is to provide a water-saving and environmentally friendly plastic pipe connection fitting to solve the problem mentioned in the background art that existing connection fittings are connected by applying adhesive to the inner wall of the fitting and the outer wall of the pipe. Once a leak occurs at the connection point, the adhesive adheres to the inner wall of the fitting and cannot be reused. The fitting needs to be replaced and reconnected to the pipe, which reduces the effectiveness of the connection fitting and fails to meet the usage requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-saving and environmentally friendly plastic pipe connecting fitting, comprising a first connecting disc, a second connecting disc, and a plastic pipe. A first connecting pipe is provided on one side of both the first and second connecting discs, and one end of the first connecting pipe is integrally formed with the first and second connecting discs. An installation hole is provided at the center of the first connecting disc. A second connecting pipe is provided on the other side of the second connecting disc, and the second connecting pipe is integrally formed with the second connecting disc. Threads are provided on the inner wall of the installation hole and the outer wall of the second connecting pipe, and the second connecting pipe is threadedly connected to the first connecting disc. An inner liner ring is provided inside the first connecting pipe, and the inner liner ring is integrally formed with the first connecting pipe. A water-swellable rubber is provided at the bottom of the inner liner ring, and the water-swellable rubber is positioned between the inner liner ring and the first connecting pipe. Two locking bolts are provided on the outside of the first connecting pipe, and the locking bolts are threadedly connected to the first connecting pipe.

[0007] Preferably, a filter is provided inside the mounting hole, and the filter is attached to one end of the first connecting pipe.

[0008] Preferably, an O-ring is provided on the outside of the filter element, and the O-ring is integrated with the filter element, with the O-ring fitting against the inner wall of the mounting hole.

[0009] Preferably, a pressure ring is provided at one end of the second connecting pipe, and the pressure ring is fixedly connected to the second connecting pipe.

[0010] Preferably, a sealing ring is provided between the first connecting plate and the second connecting plate, and the sealing ring is in contact with the first connecting plate and the second connecting plate.

[0011] Preferably, the first connecting plate is provided with an assembly hole, the second connecting plate is provided with a threaded hole, a connecting bolt is provided inside the assembly hole, and the connecting bolt is provided corresponding to the threaded hole. The connecting bolt is slidably connected to the first connecting plate and threadedly connected to the second connecting plate.

[0012] Preferably, a dustproof ring is provided inside one end of the first connecting tube, and the dustproof ring is fitted and connected to the first connecting tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model device comprises a first connecting plate, a second connecting plate, a mounting hole, a filter element, a second connecting pipe, a pressure ring, an assembly hole, a connecting bolt, and a threaded hole. The first and second connecting plates are assembled and connected through the mounting hole and the second connecting pipe. The filter element is installed in the mounting hole to filter the flowing water and remove impurities. The second connecting pipe, screwed into the mounting hole, works with the pressure ring to press the installed filter element. The connecting bolt passes through the assembly hole and is screwed into the threaded hole to limit the connection between the first and second connecting plates, preventing the connecting pipe from loosening during use. The connecting pipe consists of two parts, making it easy to disassemble after a period of use to remove and clean the filter element. The plastic pipe and the connecting pipe are not connected by adhesive, allowing the connecting pipe to be reused and improving its practicality.

[0015] 2. This utility model device, through the arrangement of a first connecting pipe, an inner liner ring, a locking bolt, a dustproof ring, and water-swellable rubber, has the water-swellable rubber placed at the bottom of the inner liner ring. One end of the plastic pipe is inserted from one end of the second connecting pipe and contacts the water-swellable rubber. After absorbing water, the water-swellable rubber expands significantly in volume while maintaining its flexibility, achieving the effect of "stopping water with water" and improving the connection sealing performance. The inner wall of the plastic pipe fits against the outer wall of the inner liner ring. Rotating the locking bolt ensures that one end of it is in close contact with the plastic pipe, limiting the insertion of the plastic pipe and ensuring the firm connection between the plastic pipe and the connecting fitting. The dustproof ring fills the gap between the plastic pipe and the first connecting pipe, preventing dust from entering through the connection gap. Attached Figure Description

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

[0017] Figure 2 This is a perspective view of the first connecting disc of this utility model;

[0018] Figure 3 This is a perspective view of the second connecting disc of this utility model;

[0019] Figure 4 This is a cross-sectional view of the present invention;

[0020] Figure 5 For the present utility model Figure 4 A magnified view of a portion of area A;

[0021] Figure 6 This is a cross-sectional view of the connection between the plastic pipe and the first connecting pipe of this utility model;

[0022] Figure 7 This is a structural diagram of the connection between the filter element and the O-ring of this utility model.

[0023] In the diagram: 1. First connecting plate; 2. Second connecting plate; 3. Sealing ring; 4. First connecting pipe; 5. Inner liner ring; 6. Locking bolt; 7. Dustproof ring; 8. Assembly hole; 9. Connecting bolt; 10. Mounting hole; 11. Filter plate; 12. Threaded hole; 13. Second connecting pipe; 14. Pressure ring; 15. Plastic pipe; 16. Water-swellable rubber; 17. Thread; 18. O-ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figure 1-7 This utility model provides an embodiment of a water-saving and environmentally friendly plastic pipe connecting fitting, comprising a first connecting plate 1, a second connecting plate 2, and a plastic pipe 15. A first connecting pipe 4 is provided on one side of both the first connecting plate 1 and the second connecting plate 2, and one end of the first connecting pipe 4 is integrally formed with the first connecting plate 1 and the second connecting plate 2. An installation hole 10 is provided at the center of the first connecting plate 1. A second connecting pipe 13 is provided on the other side of the second connecting plate 2, and the second connecting pipe 13 is integrally formed with the second connecting plate 2. The inner wall of the mounting hole 10 and the outer wall of the second connecting pipe 13 are both provided with threads 17, and the second connecting pipe 13 is threadedly connected to the first connecting plate 1. The inner lining ring 5 is provided inside the first connecting pipe 4, and the inner lining ring 5 is integrated with the first connecting pipe 4. The bottom of the inner lining ring 5 is provided with water-swellable rubber 16, and the water-swellable rubber 16 is located between the inner lining ring 5 and the first connecting pipe 4. The outer side of the first connecting pipe 4 is provided with locking bolts 6. There are two locking bolts 6, and the locking bolts 6 are threadedly connected to the first connecting pipe 4.

[0026] In use: Screw the second connecting tube 13 into the mounting hole 10, connect the second connecting plate 2 to the first connecting plate 1, first place the water-swellable rubber 16 into the bottom of the inner liner ring 5, insert one end of the plastic tube 15 from one end of the second connecting tube 13 and contact the water-swellable rubber 16. After absorbing water, the water-swellable rubber 16 expands significantly in volume and maintains its flexibility, achieving the effect of "stopping water with water" and improving the connection sealing performance. The inner wall of the plastic tube 15 fits against the outer wall of the inner liner ring 5. Then rotate the locking bolt 6 so that one end of it is in close contact with the plastic tube 15, limiting the insertion of the plastic tube 15.

[0027] Please see Figure 2 , Figure 4 and Figure 5A filter element 11 is installed inside the mounting hole 10, and the filter element 11 is attached to one end of the first connecting pipe 4. An O-ring 18 is installed on the outside of the filter element 11, and the O-ring 18 is connected to the filter element 11 as a whole. The O-ring 18 is attached to the inner wall of the mounting hole 10. A pressure ring 14 is installed at one end of the second connecting pipe 13, and the pressure ring 14 is fixedly connected to the second connecting pipe 13. The filter element 11 filters the flowing water and removes impurities from the water. The O-ring 18 can ensure the sealing of the connection between the filter element 11 and the first connecting plate 1. The pressure ring 14 squeezes the filter element 11 installed in the mounting hole 10, improving the installation effect of the filter element 11.

[0028] Please see Figure 1 , Figure 2 and Figure 3 A sealing ring 3 is provided between the first connecting plate 1 and the second connecting plate 2, and the sealing ring 3 fits against the first connecting plate 1 and the second connecting plate 2. The first connecting plate 1 is provided with an assembly hole 8, and the second connecting plate 2 is provided with a threaded hole 12. A connecting bolt 9 is provided inside the assembly hole 8, and the connecting bolt 9 is correspondingly provided with the threaded hole 12. The connecting bolt 9 is slidably connected to the first connecting plate 1, and is threadedly connected to the second connecting plate 2. The sealing ring 3 ensures the sealing of the connection between the first connecting plate 1 and the second connecting plate 2. The connecting bolt 9 passes through the assembly hole 8 and is screwed into the threaded hole 12 to limit the connection between the first connecting plate 1 and the second connecting plate 2, preventing the connecting pipe from loosening during use. The connecting pipe consists of two parts, and after a period of use, it is convenient to disassemble the connecting pipe and remove the filter sheet 11 for cleaning and replacement, thereby improving the filtration effect of the connecting pipe.

[0029] Please see Figure 1 and Figure 4 A dustproof ring 7 is provided inside one end of the first connecting pipe 4, and the dustproof ring 7 is fitted and connected to the first connecting pipe 4. The dustproof ring 7 fills the gap between the plastic pipe 15 and the first connecting pipe 4 to prevent dust from entering from the gap.

[0030] Working principle: The filter element 11 is placed in the mounting hole 10, and the second connecting tube 13 is screwed into the mounting hole 10 to connect the second connecting plate 2 to the first connecting plate 1. The pressure ring 14 contacts the filter element 11, and the connecting bolt 9 is screwed into the threaded hole 12 through the assembly hole 8 to limit the connection of the first connecting plate 1 and the second connecting plate 2. First, the water-swellable rubber 16 is placed at the bottom of the inner liner ring 5. One end of the plastic tube 15 is inserted from one end of the second connecting tube 13 and contacts the water-swellable rubber 16. After absorbing water, the water-swellable rubber 16 expands significantly in volume while maintaining flexibility, achieving the effect of "water stopping water" and improving the connection sealing performance. The inner wall of the plastic tube 15 fits against the outer wall of the inner liner ring 5. The locking bolt 6 is rotated so that one end of it is in close contact with the plastic tube 15, limiting the insertion of the plastic tube 15 and realizing the connection between the plastic tube and the fitting. The filter element 11 filters the flowing water, removing impurities. The connecting pipe consists of two parts, which can be easily disassembled after a period of use to remove and clean or replace the filter element 11, thereby improving the filtration effect of the connecting pipe.

[0031] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] Although embodiments of the present invention have been shown and described, 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 water-saving environment-friendly plastic pipe connecting pipe fitting, comprising a first connecting disc (1), a second connecting disc (2) and a plastic pipe (15), characterized in that: The first connecting disc (1) and the second connecting disc (2) are provided with a first connecting pipe (4) on one side, and one end of the first connecting pipe (4) is integrally provided with the first connecting disc (1) and the second connecting disc (2), the center of the first connecting disc (1) is provided with a mounting hole (10), the other side of the second connecting disc (2) is provided with a second connecting pipe (13), and the second connecting pipe (13) is integrally provided with the second connecting disc (2), the inner wall of the mounting hole (10) and the outer wall of the second connecting pipe (13) are provided with a screw thread (17), and the second connecting pipe (13) is threadedly connected with the first connecting disc (1), the inside of the first connecting pipe (4) is provided with an inner liner ring (5), and the inner liner ring (5) is integrally provided with the first connecting pipe (4), the bottom of the inner liner ring (5) is provided with a water-swelling rubber (16), and the water-swelling rubber (16) is arranged between the inner liner ring (5) and the first connecting pipe (4), the outside of the first connecting pipe (4) is provided with a locking bolt (6), the locking bolt (6) is provided with two, and the locking bolt (6) is threadedly connected with the first connecting pipe (4).

2. The water-saving environment-friendly plastic pipe connecting pipe according to claim 1, characterized in that: The inside of the mounting hole (10) is provided with a filter piece (11), and the filter piece (11) is attached to one end of the first connecting pipe (4).

3. The water-saving environment-friendly plastic pipe connecting pipe according to claim 2, characterized in that: The outside of the filter piece (11) is provided with an O-shaped ring (18), and the O-shaped ring (18) is integrally connected with the filter piece (11), and the O-shaped ring (18) is attached to the inner wall of the mounting hole (10).

4. The water-saving environment-friendly plastic pipe connecting pipe according to claim 1, characterized in that: One end of the second connecting pipe (13) is provided with a compression ring (14), and the compression ring (14) is fixedly connected with the second connecting pipe (13).

5. The water-saving environment-friendly plastic pipe connecting pipe according to claim 1, characterized in that: The first connecting disc (1) and the second connecting disc (2) are provided with a sealing ring (3), and the sealing ring (3) is attached to the first connecting disc (1) and the second connecting disc (2).

6. The water-saving environment-friendly plastic pipe connecting pipe according to claim 1, characterized in that: The first connecting disc (1) is provided with an assembly hole (8), the second connecting disc (2) is provided with a threaded hole (12), the inside of the assembly hole (8) is provided with a connecting bolt (9), and the connecting bolt (9) is correspondingly provided with the threaded hole (12), the connecting bolt (9) is slidably connected with the first connecting disc (1), and the connecting bolt (9) is threadedly connected with the second connecting disc (2).

7. The water-saving environment-friendly plastic pipe connecting pipe according to claim 1, characterized in that: The inside of one end of the first connecting pipe (4) is provided with a dustproof ring (7), and the dustproof ring (7) is attached to the first connecting pipe (4).

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