PP pipe with sealing pipe joint

Abstract

The utility model discloses a PP (polypropylene) pipe with a sealing pipe joint, which relates to the technical field of pipes and comprises a sealing joint, PP pipes are mounted at two ends of the sealing joint, a first protruding ring is mounted on the outer side of the sealing joint, a second protruding ring aligned with the first protruding ring is arranged on the outer side of the PP pipe, and the first protruding ring and the second protruding ring are integrally formed. A rubber pad is installed between the first protruding ring and the second protruding ring, open grooves are formed in the outer wall of the first protruding ring and the outer wall of the second protruding ring, and the outer side of the first protruding ring and the outer side of the second protruding ring are sleeved with sealing rings. The sealing ring can be connected to the outer side of the first protruding ring and the outer side of the second protruding ring in a sleeved mode, so that the joint of the PP pipe is further sealed, the fixing edges are inserted into the open grooves formed in the outer walls of the first protruding ring and the second protruding ring, and the sealing joint and the PP pipe can be limited and fixed; therefore, the connecting effect of the PP pipe and the sealing joint is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipes, in particular to a PP pipe with a sealed pipe joint. Background Art

[0002] PP pipe is a non-toxic, hygienic, high temperature resistant and recyclable pipe type. It is mainly used in indoor hot and cold water supply systems in buildings and is also widely used in heating systems. The characteristics of PP pipe are no corrosion, wear resistance, no scaling, reduced vibration and noise, anti-freezing and anti-condensation, less heat loss, simple installation and long service life. When connecting PP pipes, connectors are usually required.

[0003] Prior art such as CN209819004U discloses a PP pipe with a sealed pipe joint, comprising a sealing pipe and a PP pipe body, the outer surface of the sealing pipe is provided with a through hole a, a pressure plate is arranged in the through hole a, the upper and lower surfaces of the pressure plate are respectively fixedly connected with a guide block and a rubber block, the number of the pressure plates is several, and the several pressure plates are evenly arranged in a circular ring shape on the outer surface of the sealing pipe, a rubber ring a is arranged in the sealing pipe, the rubber ring a is located between the several pressure plates, the left and right sides of the rubber ring a are both fitted with a limiting plate, and the outer surface of the limiting plate is fixedly connected to the inner wall of the sealing pipe, the limiting plate is circular in shape, and a through hole b is provided on the left side of the limiting plate, a connecting pipe is arranged in the sealing pipe, the connecting pipe is located in the rubber ring a and the through hole b, the right end of the connecting pipe is connected to the left end of the PP pipe body, the outer surface of the PP pipe body is fixedly connected with the rubber ring b, and the outer surface of the rubber ring b is fixedly connected to the inner wall of the sealing pipe.

[0004] Although bolts and other structures are used to seal the end connection of the PP pipe, the PP pipe is connected to the connector by threads. However, when the PP pipe is subjected to force, it is easy to deviate and rotate, which may cause the connector to loosen. For this reason, fixing parts are used to fix the threads. However, after long-term use, the threads are prone to rust, which makes it difficult to disassemble the connector. In addition, during the use of existing connectors, rubber rings are usually used for sealing. However, the rubber rings are usually located inside the pipe connection and are difficult to replace. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a PP pipe with a sealed pipe joint to solve the technical problems that bolt connections are prone to rust and sealing parts are inconvenient to disassemble.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PP pipe with a sealed pipe joint, comprising a sealed joint, PP pipes are installed at both ends of the sealed joint, a first protruding ring is installed on the outer side of the sealed joint, a second protruding ring aligned with the first protruding ring is provided on the outer side of the PP pipe, a rubber pad is installed between the first protruding ring and the second protruding ring, the outer walls of the first protruding ring and the second protruding ring are both provided with grooves, sealing rings are sleeved on the outer sides of the first protruding ring and the second protruding ring, the inner wall of the sealing ring is provided with multiple groups of fixed edges matching the grooves, and the sealing ring is connected to the grooves on the outer walls of the first protruding ring and the second protruding ring through the fixed edges.

[0007] By adopting the above technical solution, the PP pipe can be conveniently connected to the sealing joint, and the connection of the PP pipe can be sealed by the rubber pad and the sealing ring to improve the sealing effect.

[0008] The utility model is further configured that the outer walls at both ends of the sealing joint are provided with threads, the inner wall of the PP pipe is also provided with threads, and the sealing joint is fixedly connected to the PP pipe through the threads.

[0009] By adopting the above technical solution, the sealing joint can be easily connected to the PP pipe.

[0010] The utility model is further configured that the outer wall of the sealing ring is provided with four groups of protruding pieces, each group of protruding pieces has two protruding pieces, which are respectively installed at two ends of the sealing ring, and the four groups of protruding pieces are equidistantly installed on the outer wall of the sealing ring.

[0011] By adopting the above technical solution, the sealing ring can be easily moved.

[0012] The utility model is further configured that a plurality of groups of elastic rings are installed inside the sealing ring, and the elastic rings are evenly distributed inside the sealing ring.

[0013] By adopting the above technical solution, the sealing ring can be tightly attached to the outside of the first protruding ring and the second protruding ring when passing through the elastic ring.

[0014] The utility model is further configured that the outer wall of the rubber pad is provided with an arc chamfer, and the top of the rubber pad is aligned with the bottom ends of the slots of the first protruding ring and the second protruding ring.

[0015] By adopting the above technical solution, the friction between the fixed edge and the rubber pad can be reduced when the fixed edge moves.

[0016] The utility model is further configured that a plurality of sets of fixing rods are installed on the inner side of the rubber pad, the fixing rods penetrate the rubber pad, and the rubber pad is fixedly connected to the second protruding ring through the fixing rods.

[0017] By adopting the above technical solution, it is convenient to fix the rubber pad.

[0018] In summary, the utility model mainly has the following beneficial effects:

[0019] 1. The utility model provides a sealing joint, a second protruding ring and a rubber pad, so that when the PP pipes are connected, two groups of PP pipes can be connected together through the sealing joint, and the rubber pad can be squeezed by the first protruding ring and the second protruding ring to seal the connection of the PP pipe.

[0020] 2. The utility model also provides a sealing ring, which can be sleeved on the outside of the first protruding ring and the second protruding ring, so as to further seal the connection of the PP pipe, and the fixing edge is inserted into the groove formed on the outer wall of the first protruding ring and the second protruding ring, so as to limit and fix the sealing joint and the PP pipe, thereby improving the connection effect between the PP pipe and the sealing joint. When disassembly is required, it is only necessary to pull the sealing ring and disassemble it from the outside of the first protruding ring and the second protruding ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the cross section of the sealing joint of the utility model;

[0023] Figure 3 For this utility model Figure 2 A schematic diagram of the structure with a partial enlargement at the center;

[0024] Figure 4 This is a schematic diagram of the connection structure between the sealing ring and the rubber pad of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the cross section of the sealing ring of the utility model.

[0026] In the figure: 1, sealing joint; 101, first protruding ring; 2, PP tube; 201, second protruding ring; 3, sealing ring; 301, protruding piece; 302, fixing edge; 303, elastic ring; 4, rubber pad; 401, arc chamfer; 402, fixing rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A PP pipe with a sealed pipe joint, such as Figures 1 to 5 As shown, it includes a sealing joint 1, both ends of the sealing joint 1 are installed with a PP pipe 2, the outer walls of both ends of the sealing joint 1 are provided with threads, the inner wall of the PP pipe 2 is also provided with threads, the sealing joint 1 and the PP pipe 2 are fixedly connected by threads, a first protruding ring 101 is installed on the outer side of the sealing joint 1, a second protruding ring 201 aligned with the first protruding ring 101 is provided on the outer side of the PP pipe 2, a rubber pad 4 is installed between the first protruding ring 101 and the second protruding ring 201, and the gap between the sealing joint 1 and the PP pipe 2 can be sealed, the outer walls of the first protruding ring 101 and the second protruding ring 201 are both provided with grooves, and the outer sides of the first protruding ring 101 and the second protruding ring 201 are sleeved with sealing rings 3. The outer wall of the sealing ring 3 is provided with four groups of protruding pieces 301, each group of protruding pieces 301 has two protruding pieces 301, which are respectively installed at both ends of the sealing ring 3, and the four groups of protruding pieces 301 are equidistantly installed on the outer wall of the sealing ring 3. The inner wall of the sealing ring 3 is provided with multiple groups of fixed edges 302 matching the grooves. The sealing ring 3 is connected with the grooves of the outer walls of the first protruding ring 101 and the second protruding ring 201 through the fixed edges 302, so as to further seal the gap between the sealing joint 1 and the PP pipe 2. Multiple groups of elastic rings 303 are installed inside the sealing ring 3, and the elastic rings 303 are equidistantly distributed inside the sealing ring 3, so that the sealing ring 3 fits tightly on the outside of the first protruding ring 101 and the second protruding ring 201.

[0030] See also Figure 4 The outer wall of the rubber pad 4 is provided with an arc chamfer 401, and the top of the rubber pad 4 is aligned with the bottom ends of the grooves of the first protruding ring 101 and the second protruding ring 201, which can reduce the friction between the fixed edge 302 and the rubber pad 4 when the fixed edge 302 moves.

[0031] See also Figure 3 and Figure 4 A plurality of fixing rods 402 are installed on the inner side of the rubber pad 4 . The fixing rods 402 penetrate the rubber pad 4 . The rubber pad 4 is fixedly connected to the second protruding ring 201 through the fixing rods 402 .

[0032] When connecting the PP pipes, first align the two groups of PP pipes 2, then install the sealing joint 1 between the two groups of PP pipes 2, and connect the two groups of PP pipes 2 through threaded connection, until the first protruding ring 101 on the sealing joint 1 is in contact with the second protruding ring 201 of the PP pipe and squeezes the rubber pad 4, and the groove on the first protruding ring 101 is aligned with the groove on the second protruding ring 201, then pull the sealing ring 3, put the sealing ring 3 on the outside of the first protruding ring 101, and insert the fixing edge 302 into the groove on the first protruding ring 101, then push the sealing ring 3, the fixing edge 302 slides and contacts the outer wall of the rubber pad 4, and the edge of the rubber pad 4 is provided with an arc chamfer 401, which can reduce the friction between the fixing edge 302 and the rubber pad 4, and facilitate the movement of the sealing ring 3 until the fixing edge 302 is inserted into the groove on the outside of the second protruding ring 201, thereby further sealing the gap at the connection between the sealing joint 1 and the PP pipe 2 and improving the sealing effect.

[0033] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A PP pipe with a sealed pipe joint, comprising a sealed joint (1), characterized in that: Both ends of the sealing joint (1) are installed with a PP tube (2); a first protruding ring (101) is installed on the outer side of the sealing joint (1); a second protruding ring (201) aligned with the first protruding ring (101) is provided on the outer side of the PP tube (2); a rubber pad (4) is installed between the first protruding ring (101) and the second protruding ring (201); the outer walls of the first protruding ring (101) and the second protruding ring (201) are both provided with grooves; a sealing ring (3) is sleeved on the outer sides of the first protruding ring (101) and the second protruding ring (201); the inner wall of the sealing ring (3) is provided with a plurality of fixed edges (302) matching the grooves; the sealing ring (3) is connected to the grooves of the outer walls of the first protruding ring (101) and the second protruding ring (201) by means of the fixed edges (302).

2. A PP pipe with a sealed pipe joint according to claim 1, characterized in that: The outer walls of both ends of the sealing joint (1) are provided with threads, and the inner wall of the PP pipe (2) is also provided with threads, and the sealing joint (1) and the PP pipe (2) are fixedly connected via the threads.

3. The PP pipe with a sealed pipe joint according to claim 1, characterized in that: The outer wall of the sealing ring (3) is provided with four groups of protruding pieces (301), each group of protruding pieces (301) has two protruding pieces (301), which are respectively installed at two ends of the sealing ring (3), and the four groups of protruding pieces (301) are installed at equal distances on the outer wall of the sealing ring (3).

4. The PP pipe with a sealed pipe joint according to claim 1, characterized in that: A plurality of groups of elastic rings (303) are installed inside the sealing ring (3), and the elastic rings (303) are evenly distributed inside the sealing ring (3).

5. The PP pipe with a sealed pipe joint according to claim 1, characterized in that: The outer wall of the rubber pad (4) is provided with an arc chamfer (401), and the top end of the rubber pad (4) is aligned with the bottom ends of the slots of the first protruding ring (101) and the second protruding ring (201).

6. The PP pipe with a sealed pipe joint according to claim 1, characterized in that: A plurality of sets of fixing rods (402) are installed on the inner side of the rubber pad (4), the fixing rods (402) penetrate the rubber pad (4), and the rubber pad (4) is fixedly connected to the second protruding ring (201) via the fixing rods (402).

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