PP pipe with interface installation limiting function

Abstract

The utility model relates to the technical field of PP pipes, and discloses a PP pipe with a connector installation limiting function, the PP pipe comprises a PP pipe main body and a connecting pipe fitting, the end part of the PP pipe main body is inserted into the connecting pipe fitting, a circulating groove is formed in the connecting pipe fitting in a penetrating manner, the end part of the circulating groove is provided with a fixing groove, and the end part of the connecting pipe fitting is provided with a connector. A connecting ring plate is fixed to the portion, on the side edge of the connecting pipe fitting, of the outer surface of the PP pipe body, limiting grooves are symmetrically formed in the connecting ring plate, and fixing ring plates are fixed to the ends of the connecting pipe fitting. Therefore, the firmness and the fixing effect of hot melting connection are guaranteed, the problem that an existing PP pipe connector cannot be stably kept after hot melting sleeving connection during installation is solved, a PP pipe can be kept relatively static through the limiting function during installation, and therefore the PP pipe is more convenient to assemble in a labor-saving mode.

Description

Technical Field

[0001] The utility model application relates to the technical field of PP pipes, in particular to a PP pipe with an interface installation limiting function. 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 of buildings. It is also widely used in heating systems. The connection methods generally used during assembly are welding, end edge welding, and different material pipe connections. It has the characteristics of being rust-proof, wear-resistant, non-scaling, reducing vibration and noise, preventing freezing and cracking, preventing condensation, less heat loss, simple installation, and long service life.

[0003] When hot-melt welding is performed on PP pipes, the outer surface and the inner surface of the pipe body need to be hot-melted, and then the hot-melt part of the pipe body needs to be quickly inserted into the inside of the hot-melt part of the pipe body. After insertion, the pipe body and the pipe fitting need to be kept relatively still to allow fusion at the interface. However, since the interface between the PP pipe and the pipe fitting does not have a limiting function, it needs to be manually held and maintained, which is more laborious. Summary of the invention

[0004] In order to solve the problem that the existing PP pipe interface cannot be stably maintained after hot-melt sleeve connection during installation, the utility model provides a PP pipe with an interface installation limiting function to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A PP tube with an interface installation limit function comprises a PP tube body and a connecting pipe fitting, wherein the end of the PP tube body is inserted into the connecting pipe fitting, a flow groove is provided through the connecting pipe fitting, and fixing grooves are provided at the ends of the flow grooves, a connecting ring plate is fixed to the outer surface of the PP tube body on the side of the connecting pipe fitting, and limit grooves are symmetrically provided inside the connecting ring plate, a fixing ring plate is fixed to the end of the connecting pipe fitting, and fixing rods are symmetrically fixed to the outward side of the fixing ring plate, a rotating limit plate is rotatably sleeved on each of the fixing rods, and the rotating limit plate passes through the limit groove to the outside of the connecting ring plate.

[0007] Furthermore, the diameter of the circulation groove is equal to the diameter of the inner circle of the PP pipe body, and the diameter of each of the fixing grooves is equal to the diameter of the outer circle of the PP pipe body.

[0008] Furthermore, the distance between the connecting ring plate and the end of the PP pipe body is equal to the length of the fixing groove, and the outer surface of the PP pipe body is slidably fitted with the inside of the fixing groove.

[0009] Furthermore, each of the limiting grooves is configured as a rectangle that matches the rotation limiting plate, and the height of each of the limiting grooves is greater than the height of the fixing rod.

[0010] Furthermore, a ring-shaped elastic rubber pad matching with the PP pipe body is fixedly glued to one side of the connecting ring plate facing the connecting pipe fitting, and limiting grooves are symmetrically provided inside the elastic rubber pad.

[0011] Furthermore, each of the fixing rods is configured as a transversely placed "T" shape, and the thickness of each transverse section of the fixing rod is greater than the sum of the thicknesses of the connecting ring plate and the rotation limit plate, and less than the sum of the thicknesses of the connecting ring plate, the elastic rubber pad and the rotation limit plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the limiting structure can limit the position of the PP pipe and the pipe fitting when they are connected, and the two will not move relative to each other after hot-melt connection, thereby ensuring the firmness and fixing effect of the hot-melt connection, solving the problem that the existing PP pipe interface cannot be stably maintained after hot-melt connection during installation, so that the PP pipe can be kept relatively still through the limiting function during installation, making the PP pipe more convenient and labor-saving when assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a front view schematic diagram of a PP pipe connection structure according to an embodiment of the present application;

[0016] Figure 2 yes Figure 1 A schematic front cross-sectional view of the PP pipe connection structure in the illustrated embodiment;

[0017] Figure 3 yes Figure 1 A schematic side view of the PP tube body in the illustrated embodiment.

[0018] The meanings of the reference numerals in the figure are as follows: 1. PP pipe body; 2. Connecting pipe fitting; 3. Flow groove; 4. Fixing groove; 5. Connecting ring plate; 6. Limiting groove; 7. Elastic rubber pad; 8. Fixing ring plate; 9. Fixing rod; 10. Rotation limiting plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A PP pipe with an interface installation limit function comprises a PP pipe body 1 and a connecting pipe fitting 2. The end of the PP pipe body 1 is inserted into the connecting pipe fitting 2. A flow groove 3 is provided inside the connecting pipe fitting 2. A fixing groove 4 is provided at each end of the flow groove 3. The diameter of the flow groove 3 is equal to the diameter of the inner ring of the PP pipe body 1. The diameter of each fixing groove 4 is equal to the outer ring diameter of the PP pipe body 1. A connecting ring plate 5 is fixed to the outer surface of the PP pipe body 1 on the side of the connecting pipe fitting 2. The distance between the connecting ring plate 5 and the end of the PP pipe body 1 is They are all equal to the length of the fixing groove 4, the outer surface of the PP pipe body 1 is slidably fitted with the inside of the fixing groove 4, and the limiting grooves 6 are symmetrically opened inside the connecting ring plate 5, each limiting groove 6 is set to a rectangle that matches the rotation limit plate 10, and the height of each limiting groove 6 is greater than the height of the fixing rod 9, and the ends of the connecting pipe fittings 2 are fixed with fixing ring plates 8, and the fixing rods 9 are symmetrically fixed on the outward side of the fixing ring plate 8, and a rotation limit plate 10 is rotatably sleeved on each fixing rod 9, and the rotation limit plate 10 passes through the limiting groove 6 to the outside of the connecting ring plate 5.

[0021] Specifically, when it is necessary to connect the PP pipe body 1 with the connecting pipe fitting 2, after hot-melting the side wall of the fixing groove 4 and the outer surface of the PP pipe body 1, the PP pipe body 1 is quickly aligned and inserted into the fixing groove 4, and the fixing rod 9 and the rotation limit plate 10 are passed through the connecting ring plate 5. After passing through, the rotation limit plate 10 is rotated so that the rotation limit plate 10 is rotated to be misaligned with the limit groove 6, so that the PP pipe body 1 and the connecting pipe fitting 2 can be limited.

[0022] As an optimization solution, Figure 3 As shown, a ring-shaped elastic pad 7 cooperating with the PP pipe body 1 is fixedly glued to the side of the connecting ring plate 5 facing the connecting pipe fitting 2, and a limiting groove 6 is symmetrically provided inside the elastic pad 7. Each fixing rod 9 is arranged in a transverse "T" shape, and the thickness of the transverse section of each fixing rod 9 is greater than the sum of the thicknesses of the connecting ring plate 5 and the rotation limit plate 10, and less than the sum of the thicknesses of the connecting ring plate 5, the elastic pad 7 and the rotation limit plate 10.

[0023] Specifically, it is ensured that when the rotating limit plate 10 can pass through the connecting ring plate 5 and rotate to be offset from the limiting groove 6, the fixed ring plate 8 and the connecting ring plate 5 will squeeze the elastic rubber pad 7, and the elastic rubber pad 7 can increase the sealing of the connection between the PP pipe body 1 and the connecting pipe fitting 2.

[0024] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0025] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A PP pipe with an interface installation limit function, comprising a PP pipe body (1) and a connecting pipe fitting (2), characterized in that: The end of the PP pipe body (1) is inserted into the connecting pipe (2), and a circulation groove (3) is provided inside the connecting pipe (2). The ends of the circulation groove (3) are provided with fixing grooves (4). A connecting ring plate (5) is fixed to the outer surface of the PP pipe body (1) on the side of the connecting pipe (2), and limiting grooves (6) are symmetrically provided inside the connecting ring plate (5). The ends of the connecting pipe (2) are fixed with fixing ring plates (8), and fixing rods (9) are symmetrically fixed on the outward side of the fixing ring plate (8). A rotating limiting plate (10) is rotatably sleeved on each of the fixing rods (9), and the rotating limiting plate (10) passes through the limiting groove (6) to the outside of the connecting ring plate (5).

2. The PP pipe with interface installation limiting function according to claim 1, characterized in that: The diameter of the circulation groove (3) is equal to the diameter of the inner circle of the PP pipe body (1), and the diameter of each of the fixing grooves (4) is equal to the diameter of the outer circle of the PP pipe body (1).

3. The PP pipe with interface installation limiting function according to claim 1 is characterized in that: The distance between the connecting ring plate (5) and the end of the PP pipe body (1) is equal to the length of the fixing groove (4), and the outer surface of the PP pipe body (1) is slidably fitted inside the fixing groove (4).

4. The PP pipe with interface installation limiting function according to claim 1, characterized in that: Each of the limiting grooves (6) is configured as a rectangle that matches the rotation limiting plate (10), and the height of each of the limiting grooves (6) is greater than the height of the fixing rod (9).

5. The PP pipe with interface installation limiting function according to claim 1 is characterized in that: An annular elastic rubber pad (7) matching with the PP pipe body (1) is fixedly glued to one side of the connecting ring plate (5) facing the connecting pipe fitting (2), and limiting grooves (6) are symmetrically provided inside the elastic rubber pad (7).

6. The PP pipe with interface installation limiting function according to claim 5, characterized in that: Each of the fixing rods (9) is arranged in a transverse "T" shape, and the thickness of the transverse section of each of the fixing rods (9) is greater than the sum of the thicknesses of the connecting ring plate (5) and the rotation limit plate (10), and is less than the sum of the thicknesses of the connecting ring plate (5), the elastic rubber pad (7) and the rotation limit plate (10).

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