CN218178244U

CN218178244U - Pipe fitting structure and pipe fitting assembly

Info

Publication number: CN218178244U
Application number: CN202222450457.5U
Authority: CN
Inventors: 陆伟华
Original assignee: Rifeng New Material Co ltd; Rifeng Enterprise Foshan Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Current assignee: Rifeng New Material Co ltd; Rifeng Enterprise Foshan Co Ltd; Rifeng Enterprise Group Co Ltd; Rifeng Technology Co Ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2022-12-30
Anticipated expiration: 2032-09-15

Abstract

The utility model provides a pipe fitting structure and pipe fitting subassembly relates to tubular product pipe fitting technical field. The pipe fitting structure comprises a pipe body, a head chamfer part, a main body chamfer part and a connecting part, wherein the pipe body, the head chamfer part, the main body chamfer part and the connecting part are sequentially arranged on the outer wall of the pipe body at intervals in the axial direction of the pipe body; the structural parts are respectively arranged around the circumference of the pipe body; first and second annular grooves are formed between the head chamfer and the body chamfer and between the body chamfer and the connecting portion, respectively. The pipe body can realize pipeline communication, the head chamfer part is convenient to integrally insert into the pipe, and after the pipe is tightened up, the main body chamfer part can fix the pipe body and the pipe, so that the pipe and the pipe body are ensured to be firmly connected to meet the requirement. By designing the first annular groove and the second annular groove, the pipe can be tightly attached to the groove part after the pipe is tightened, so that the sufficient sealing performance is ensured. The connecting part can be connected with other parts, thereby realizing the assembly of the pipeline. The structure can ensure the reliability of the connection of pipes, pipe fittings and the like.

Description

Pipe fitting structure and pipe fitting assembly

Technical Field

The utility model relates to a tubular product pipe fitting technical field particularly, relates to a tubular product structure and pipe fitting subassembly.

Background

PE-Xa (peroxide cross-linked polyethylene) is a novel material which has a three-dimensional network structure and is obtained by cross-linking a common polyethylene material through peroxide under specific temperature and pressure conditions. The PE-Xa material still has a large elastic deformation range under the normal temperature condition, so that when the pipe and the pipe are connected, the PE-Xa pipe is expanded only by using a flaring tool, the pipe made of copper or PPSU is inserted, and the expanded pipe contracts due to the fact that the expanded pipe is still in the elastic deformation range, and the inserted pipe is tightly wrapped. An elastic retraction force always exists, and the reliability of connection of the pipe and the pipe fitting is ensured.

The inventor researches and finds that in order to ensure the connection reliability of the PE-Xa pipe and the pipe fitting, the pipeline can be ensured not to leak all the time in a long service life period, and the appearance structure of the pipe fitting is a key factor for determining the connection reliability of the pipe and the pipe fitting.

In view of this, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a pipe structure to solve the above technical problem.

The second objective of the present invention is to provide a pipe assembly having the above pipe structure.

The utility model discloses can realize like this:

in a first aspect, the present embodiment provides a pipe fitting structure, which includes a pipe body, a head chamfer, a main body chamfer, and a connecting portion;

the head chamfer part, the main body chamfer part and the connecting part are sequentially arranged on the outer wall of the pipe body at intervals in the axial direction of the pipe body in a protruding mode, and the head chamfer part, the main body chamfer part and the connecting part are respectively arranged around the circumferential direction of the pipe body;

a first annular groove is formed between the head chamfered portion and the body chamfered portion, and a second annular groove is formed between the body chamfered portion and the connecting portion.

In an alternative embodiment, the outer wall diameter of the head chamfer portion becomes gradually larger in a direction from the head chamfer portion to the connecting portion.

In an optional embodiment, the main body chamfer part comprises a constant-diameter ring and a variable-diameter ring which are sequentially connected in the direction from the head chamfer part to the connecting part, and the diameter of the constant-diameter ring is equal to that of one end of the variable-diameter ring close to the constant-diameter ring; along the direction of keeping away from the constant diameter ring, the outer wall diameter of reducing ring grow gradually.

In an optional embodiment, the diameter of one end of the reducing ring away from the constant-diameter ring is A, and the diameter of the constant-diameter ring is B; wherein A is 1.06-1.09 times of B.

In an alternative embodiment, the tube body has an outer diameter C, wherein A is 2.5mm to 3mm wider than C.

In an alternative embodiment, the axial length of the tube body is D, wherein D is 1mm to 3mm longer than a.

In an alternative embodiment, the first annular groove has a width E1 and the second annular groove has a width E2; wherein E1 is 3mm-6mm, and E2 is 3mm-6mm.

In an alternative embodiment, the barb angle of the head chamfer is F1, and the barb angle of the body chamfer is F2; wherein F1 is 10-20 degrees, and F2 is 10-20 degrees.

In an alternative embodiment, the outer diameter of the tube body is C and the inner diameter of the tube body is G; wherein C is 1.25-1.35 times of G.

In a second aspect, the present invention further provides a pipe assembly, which comprises a connecting structure and at least one pipe structure, wherein the connecting structure is connected to the connecting portion of the at least one pipe structure.

The beneficial effects of the utility model include:

the utility model provides an among the pipe fitting structure, the basic function of pipeline intercommunication can be realized to the pipe body, and head chamfer portion is convenient for wholly insert tubular product, tightens up the back at tubular product, and this main part chamfer portion can fix pipe body and tubular product, ensures the firm in connection degree satisfaction requirement of tubular product and pipe body. Through the design of the first annular groove and the second annular groove, after the pipe is tightened, the pipe can be tightly attached to the groove, and therefore sufficient sealing performance is guaranteed. The connecting part can be connected with other parts to realize the assembly of the pipeline. The pipe fitting structure with the structure can ensure that the pipe, the pipe fitting and the like have good connection reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a pipe fitting structure provided by an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic view of a pipe fitting structure provided by an embodiment of the present invention at a second viewing angle;

fig. 3 is a schematic view of a first pipe assembly provided by an embodiment of the present invention at a first viewing angle;

fig. 4 is a schematic view of a first pipe assembly at a second viewing angle according to an embodiment of the present invention;

fig. 5 is a schematic view of a second pipe assembly provided in an embodiment of the present invention at a first viewing angle;

fig. 6 is a schematic view of a second pipe assembly at a second viewing angle according to an embodiment of the present invention.

Icon: 1000-a tubing assembly; 100-a tube structure; 10-a tube body; 20-head chamfer; 30-main body chamfered portion; 31-constant diameter ring; 32-a reducing ring; 40-a connecting part; 51-a first annular groove; 52-second annular groove; 200-connecting structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for convenience of description and simplification of the present invention, and it is not intended to indicate or suggest that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and therefore, it should not be understood as a limitation of the present invention. Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 and 2, the present embodiment provides a pipe fitting structure 100, which includes a pipe body 10, a head chamfer 20, a body chamfer 30, and a connecting portion 40.

The head chamfer 20 is formed on the outer wall of one end of the pipe body 10 in a protruding manner and is arranged around the circumference of the pipe body 10. The main body chamfer 30 is formed on the outer wall of the pipe body 10 in a protruding manner and is disposed around the circumference of the pipe body 10. The connecting portion 40 is formed to protrude from the outer wall of the other end of the pipe body 10 and is disposed around the circumference of the pipe body 10.

The head chamfer 20, the body chamfer 30 and the connecting portion 40 are arranged at intervals in this order, so that a first annular groove 51 is formed between the head chamfer 20 and the body chamfer 30, and a second annular groove 52 is formed between the body chamfer 30 and the connecting portion 40.

In the above pipe fitting structure 100, the pipe body 10 can realize the basic function of pipeline communication, the head chamfer portion 20 is convenient for being integrally inserted into the pipe, and after the pipe is tightened, the main body chamfer portion 30 can fix the pipe body 10 and the pipe, so as to ensure that the connection firmness degree of the pipe and the pipe body 10 meets the requirement. By designing the first annular groove 51 and the second annular groove 52, the tubing can be tightly attached to the groove portions after the tubing is tightened, thereby ensuring sufficient sealing performance. The connecting portion 40 may be connected to other components to enable assembly of the pipe. The pipe fitting structure 100 having the above structure can provide excellent connection reliability for pipes, pipe fittings, and the like.

It can be appreciated that after the pipe fitting structure 100 and the pipe fitting structure 100 are connected in place, the pipe fitting structure 100 cannot be directly pulled out when the external force pulls the pipe fitting structure 100, and when the pulling force is large, the pipe fitting structure 100 is firstly pulled thin, and the pipe fitting structure 100 and the pipe fitting structure are always combined firmly. The existence of the first annular groove 51 and the second annular groove 52 can ensure sufficient sealing performance, and the problem of leakage of the pipe in a long service life can be ensured only by the pipe and the pipe fitting structure 100 without using any rubber sealing ring.

Generally, the pipe structure 100 may be an integrally formed structural member, that is: the pipe body 10, the head chamfered portion 20, the main body chamfered portion 30, and the connecting portion 40 are integrally molded. The material of the pipe member structure 100 may be brass or engineering plastic (e.g., PPSU, PA, POE, etc.).

When the pipe fitting structure is used, the PE-Xa pipe and the reinforced memory ring with corresponding specifications are matched for use, the reinforced memory ring made of the PE-Xa material is firstly sleeved at the port of the outer surface of the PE-Xa pipe, then the inner diameter of the pipe is expanded by about 1.35 times by using a flaring tool, then the pipe fitting structure 100 is rapidly inserted into the pipe, and after the insertion depth reaches the preset depth, the reinforced memory ring and the PE-Xa pipe retract due to elastic deformation and are rapidly tightened on the pipe fitting structure 100. The connection method is cold-expanding connection.

In the present embodiment, the outer wall diameter of the head chamfer portion 20 gradually becomes larger in the direction from the head chamfer portion 20 to the connecting portion 40 to form a tapered surface. In other words, the head chamfer portion 20 is a barb structure to facilitate the insertion of the pipe fitting structure 100 into the pipe and to prevent the pipe from falling off.

In this embodiment, along the direction from the head chamfer 20 to the connecting portion 40, the main body chamfer 30 includes a constant diameter ring 31 and a variable diameter ring 32 which are connected in sequence, and the diameter of the constant diameter ring 31 is equal to the diameter of one end of the variable diameter ring 32 close to the constant diameter ring 31; the diameter of the outer wall of the reducing ring 32 is gradually increased in a direction away from the constant diameter ring 31 to form a conical surface. In other words, the constant diameter ring 31 facilitates the insertion, and the reducing ring 32 is similar to a barb structure, facilitates the insertion of the pipe fitting structure 100 into the pipe, and prevents the pipe fitting from falling off.

In this embodiment, the diameter of the end of the reducing ring 32 away from the constant diameter ring 31 is a, and the diameter of the constant diameter ring 31 is B; wherein A is 1.06-1.09 times of B, such as 1.06, 1.07, 1.08 or 1.09.

Typically, the value of a is the maximum outer diameter dimension of the tubular structure 100, which can be set to be 1.2-1.3 times, such as 1.2 times, 1.25 times, or 1.3 times, etc., the inner diameter of the tubular.

In this embodiment, the outer diameter of the tube body 10 is C, and A is 2.5mm to 3mm wider than C, for example, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, or 3.0mm wider than C.

The axial length of the tube body 10 is D, which is 1mm to 3mm longer than a, and may be, for example, 1.0mm, 1.5mm, 2.0mm, 2.5mm, or 3.0mm longer than a. This dimension D can be understood as the depth to which the tubular structure 100 is inserted into a pipe.

As can be referenced, the first annular groove 51 has a width E1, and the second annular groove 52 has a width E2; wherein, E1 may be 3mm-6mm (such as 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm or 6mm, etc.), and E2 may also be 3mm-6mm (such as 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm or 6mm, etc.).

It should be noted that the widths of the first annular groove 51 and the second annular groove 52 may be equal or different.

As can be referenced, the barb angle of the head chamfer 20 is F1, and the barb angle of the body chamfer 30 is F2; wherein, F1 is 10 degrees to 20 degrees (such as 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees or 20 degrees and the like), and F2 is 10 degrees to 20 degrees (such as 10 degrees, 11 degrees, 12 degrees, 13 degrees, 14 degrees, 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees or 20 degrees and the like).

Similarly, F1 and F2 may be the same or different.

In this embodiment, the outer diameter of the tube body 10 is C, and the inner diameter of the tube body 10 is G; wherein C is 1.25-1.35 times (e.g. 1.25, 1.30 or 1.35) of G.

Through the design of above-mentioned size, can optimize the shape of whole structure, make it more reasonable.

Referring to fig. 3 to 6 together, fig. 3 and 6 show a pipe assembly 1000 provided by the present embodiment, which includes a connecting structure 200 and at least one pipe structure 100 as described above, wherein the connecting structure 200 is connected to the connecting portion 40 of at least one pipe structure 100.

Through different combinations, components of different types such as straight-through structures, 90-degree elbows structures, reducing straight-through structures, tee joints structures and threaded structures can be formed, so that different connection requirements of pipes and pipe fittings are met.

Specifically, fig. 3 and 4 show a first pipe assembly 1000 provided by the present embodiment, which includes a connecting structure 200 and two pipe structures 100 described above, wherein the connecting structure 200 is connected between the connecting portions 40 of the two pipe structures 100. In other words, the two pipe structures 100 are symmetrically disposed at both end surfaces of the connection structure 200.

The tubing assembly 1000 can be understood as a through connection that can be connected to a D16X2.0 specification PE-Xa tubing having an outer diameter of 16mm and an inner diameter of 12mm.

In this tubing assembly 1000, the relevant dimensions are as follows:

15.50mm for A, 14.5mm for B, 13mm for C, 18mm for D, 3.5mm for E1, 4mm for E2, 15 ° for F1, 15 ° for F2, and 9.8mm for G.

Specifically, fig. 5 and 6 show a second pipe assembly 1000 provided by the present embodiment, which includes a connecting structure 200 and a pipe structure 100, wherein the connecting structure 200 is connected with the connecting portion 40 of the pipe structure 100.

The tubing assembly 1000 can be understood as a threaded feedthrough, i.e., the connection structure 200 is an internal thread structure that can be connected to a D25X2.3 specification PE-Xa tubing having an outer diameter of 25mm and an inner diameter of 20.4mm.

In this tubing assembly 1000, relevant dimensions are as follows:

25mm for A, 23mm for B, 22mm for C, 27mm for D, 5mm for E1, 6mm for E2, 15 for F1, 15 for F2, and 17mm for G.

To sum up, in the pipe fitting structure 100 provided by the present application, the pipe body 10 can realize the basic function of pipeline communication, the head chamfer portion 20 is convenient for integrally insert into the pipe, after the pipe is tightened up, the main body chamfer portion 30 can fix the pipe body 10 and the pipe, and the firm connection degree of the pipe and the pipe body 10 is ensured to meet the requirements. By designing the first annular groove 51 and the second annular groove 52, the pipe can be tightly attached to the groove portions after the pipe is tightened, thereby ensuring sufficient sealing performance. The connecting portion 40 may be connected to other components to enable assembly of the pipe. The pipe fitting structure 100 having the above structure can provide excellent connection reliability for pipes, pipe fittings, and the like.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe fitting structure is characterized by comprising a pipe body, a head chamfer part, a main body chamfer part and a connecting part;

the head chamfer part, the main body chamfer part and the connecting part are sequentially arranged on the outer wall of the pipe body at intervals in a protruding mode along the axial direction of the pipe body, and the head chamfer part, the main body chamfer part and the connecting part are arranged around the circumferential direction of the pipe body respectively;

a first annular groove is formed between the head chamfer and the body chamfer, and a second annular groove is formed between the body chamfer and the connecting portion.

2. A tubular construction according to claim 1, characterized in that the outer wall of the head chamfer is of progressively larger diameter in the direction of the head chamfer to the connection portion.

3. A pipe fitting structure as claimed in claim 1, wherein the main body chamfer portion comprises a constant diameter ring and a variable diameter ring which are connected in sequence along the direction from the head chamfer portion to the connecting portion, and the diameter of the constant diameter ring is equal to the diameter of one end of the variable diameter ring close to the constant diameter ring; along keeping away from the direction of constant footpath ring, the outer wall diameter of reducing ring enlarges gradually.

4. A pipe structure as claimed in claim 3, wherein the diameter of the end of the reducing ring remote from the constant diameter ring is a, and the diameter of the constant diameter ring is B; wherein A is 1.06-1.09 times of B.

5. A tubular construction according to claim 3, characterized in that the outer diameter of the tubular body is C, wherein a is 2.5-3 mm wider than C.

6. A tubular construction according to claim 3, characterized in that the axial length of the tubular body is D, wherein D is 1mm-3mm longer than a.

7. A tubular structure according to claim 1, characterized in that the first annular groove has a width E1 and the second annular groove has a width E2; wherein E1 is 3mm-6mm, E2 is 3mm-6mm.

8. The tubular structure of claim 1 wherein the barb angle of the head chamfer is F1 and the barb angle of the body chamfer is F2; wherein F1 is 10-20 degrees, and F2 is 10-20 degrees.

9. A tubular structure according to claim 1, characterized in that the outer diameter of the tube body is C and the inner diameter of the tube body is G; wherein C is 1.25-1.35 times of G.

10. A tubular assembly comprising a connection structure and at least one tubular structure according to any one of claims 1 to 9, the connection structure being connected to at least one connection portion of the tubular structure.