Large-diameter pipe and steel skeleton composite pipe fitting

Abstract

The utility model discloses a large-diameter pipe and steel skeleton composite pipe fitting, which relates to the field of large-diameter pipe fittings, and comprises a pipe fitting body, and the pipe fitting body comprises a connecting sleeve; the steel framework is embedded in the connecting sleeve, and the steel framework and the connecting sleeve are coaxially arranged; the two prefabricated pipes are symmetrically arranged at the two ends of the steel framework, the prefabricated pipes and ports of the steel framework are concentrically arranged, and the ends, inserted into the steel framework, of the prefabricated pipes are connected with the inner wall of the connecting sleeve; according to the large-diameter pipe and steel framework composite pipe fitting, the large-diameter pipe and the steel framework are connected through the connecting sleeve, so that the size of the steel-plastic composite pipe fitting can be customized according to the space or positioning requirement of a construction site, the use requirement of the construction site is met, and simple, rapid and reliable connection between the large-diameter composite pipe fitting and an on-site steel-plastic composite pipeline is achieved; the connection cost and difficulty are reduced, and the connection efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the field of large-diameter pipe fittings, in particular to a large-diameter pipe and steel skeleton composite pipe fitting. Background Art

[0002] At present, the commonly used large-diameter pipes on the market include steel pipes, plastic pipes, steel-plastic composite pipes, etc. Steel pipes have the advantages of high strength and good pressure resistance, but they also have disadvantages such as easy corrosion, heavy weight, and difficult installation. Plastic pipes have the advantages of corrosion resistance, light weight, and easy installation, but they also have disadvantages such as low strength and poor pressure resistance. Steel-plastic composite pipes are steel pipes with plastic layers coated or lined on the inner and outer walls to combine the advantages of steel pipes and plastic pipes, but they also have disadvantages such as weak bonding, interlayer peeling, and high cost.

[0003] In order to solve the above problems, there is a steel skeleton polyethylene composite pipe in the prior art. The pipe is made of high-strength steel wire mesh as the skeleton and high-density polyethylene as the matrix through continuous extrusion and composite molding. The pipe has the advantages of high strength, good pressure resistance, corrosion resistance, light weight, and easy installation, and has been widely used in various fluid transportation fields.

[0004] However, at present, the external dimensions of the steel-plastic composite pipe fittings connected to this type of pipe are restricted by the pipe production mold. The dimensions of the steel-plastic composite pipe fittings after injection molding are fixed and cannot be changed. When the installation space at the construction site is small or there are positioning restrictions, the steel-plastic composite pipe fittings produced using conventional technology cannot be used. Therefore, providing the market with a steel-plastic composite pipe fitting with variable installation dimensions based on the space or positioning requirements of the construction site is an urgent problem that the steel-plastic composite pipe industry needs to solve. Utility Model Content

[0005] The purpose of the utility model is to provide a large-diameter pipe and steel skeleton composite pipe fitting, which is connected to the steel skeleton by a connecting sleeve, so that the size of the steel-plastic composite pipe fitting can be customized according to the space or positioning requirements of the construction site, meet the use requirements of the construction site, and realize a simple, fast and reliable connection between the large-diameter composite pipe fitting and the on-site steel-plastic composite pipeline, thereby reducing the cost and difficulty of the connection and improving the efficiency and quality of the connection.

[0006] The above-mentioned optimized structure of the utility model is realized through the following technical scheme: a large-diameter pipe and steel skeleton composite pipe fitting, including a pipe fitting body, the pipe fitting body including a connecting sleeve; a steel skeleton, embedded in the connecting sleeve and coaxially arranged with the connecting sleeve; two prefabricated pipes, symmetrically arranged at both ends of the steel skeleton, and the prefabricated pipes are concentrically arranged with the ports of the steel skeleton, and the prefabricated pipes are inserted into one end of the steel skeleton and connected to the inner wall of the connecting sleeve.

[0007] In some embodiments, the pipe body further includes a positioning device, which can realize the positioning of the pipe body in the molding die.

[0008] In some embodiments, the positioning device includes at least two first positioning pins symmetrically arranged at the top of the connecting sleeve; at least four second positioning pins symmetrically arranged at the bottom of the connecting sleeve; the sizes of the first positioning pins and the second positioning pins are both adapted to the parting surface of the production mold.

[0009] In some embodiments, the first locating pin and the second locating pin are both connected to the steel frame.

[0010] In some embodiments, both the first positioning pin and the second positioning pin are provided with lifting holes.

[0011] In some embodiments, both ends of the connection sleeve are provided with limit platforms, and the limit platform surfaces are arranged parallel to the connection sleeve opening.

[0012] In some embodiments, the prefabricated pipe, the steel frame and the connecting sleeve are integrally injection molded.

[0013] In some embodiments, the connecting sleeve is V-shaped.

[0014] In summary, the utility model has the following beneficial effects:

[0015] The large-diameter pipe and steel skeleton composite pipe fitting connects the prefabricated pipe and the steel skeleton through a connecting sleeve, so that the length of the prefabricated pipe at both ends of the pipe fitting can be customized according to the space requirements of the construction site, thereby reducing the phenomenon of having to increase the use of transition short pipes and electric melting sleeves in order to meet the requirements of the on-site space size during the construction process, and realizing a simple, fast and reliable connection between the large-diameter composite pipe fitting and the on-site steel-plastic composite pipeline, reducing the cost and difficulty of connection, and improving the efficiency and quality of connection; the prefabricated pipe, the steel skeleton and the connecting sleeve are integrally injection molded, which can realize a simple, fast and reliable connection between the steel skeleton and the prefabricated pipe, without the need to use electric hot melting equipment and pretreatment procedures, avoiding the risk of interlayer peeling and leakage, reducing the cost and difficulty of connection, improving the efficiency and quality of connection, and ensuring the structural strength and stability of the pipe fitting; at the same time, a positioning device is adopted to realize the positioning of the pipe fitting body in the molding mold, simplify the molding process, and improve the molding accuracy and quality; a hoisting hole is arranged on the positioning device, and the pipe fitting body can be conveniently hoisted and transported, thereby improving the construction efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a side view of the utility model;

[0018] Figure 3 It is a cross-sectional view along the AA line of the present invention.

[0019] In the figure: 1. pipe fitting body; 2. connecting sleeve; 21. limiting platform; 3. steel frame; 4. prefabricated pipe; 5. positioning device; 51. first positioning pin; 52. second positioning pin. DETAILED DESCRIPTION

[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3 As shown, a large-diameter pipe and steel skeleton composite pipe fitting comprises a pipe fitting body 1, the pipe fitting body 1 comprises a connecting sleeve 2, a steel skeleton 3 and two prefabricated pipes 4; the connecting sleeve 2 is embedded with the steel skeleton 3, the connecting sleeve 2 can be V-shaped or arc-shaped, the steel skeleton 3 is coaxially arranged with the connecting sleeve 2 and has the same shape as the connecting sleeve 2, which can improve the connection strength between the steel skeleton 3 and the connecting sleeve 2; the two prefabricated pipes 4 are symmetrically arranged at both ends of the steel skeleton 3, and the prefabricated pipes 4 are concentrically arranged with the ends of the steel skeleton 3, and the prefabricated pipes 4 are inserted into one end of the steel skeleton 3 and connected with the inner wall of the connecting sleeve 2; the lengths of the prefabricated pipes 4 at both ends of the pipe fitting can be customized according to the space requirements of the construction site, thereby reducing the phenomenon of having to increase the use of transition short pipes and electric fusion sleeves in order to meet the requirements of the on-site space size during the construction process, and realizing a simple, fast and reliable connection between the large-diameter composite pipe fitting and the on-site steel-plastic composite pipeline, reducing the cost and difficulty of the connection, and improving the efficiency and quality of the connection.

[0022] The prefabricated pipe 4, the steel skeleton 3 and the connecting sleeve 2 are integrally injection molded, which can realize a simple, fast and reliable connection between the steel skeleton 3 and the prefabricated pipe 4, without the need for electric hot-melt equipment and pretreatment procedures, avoiding the risk of interlayer peeling and leakage, reducing the cost and difficulty of connection, improving the efficiency and quality of connection, and ensuring the structural strength and stability of the pipe fitting. The insertion depth of the prefabricated pipe 4 can be adjusted according to actual needs, so as to produce pipe fitting bodies 1 of different sizes to meet different usage requirements.

[0023] The pipe body 1 also includes a positioning device 5, which includes at least two first positioning pins 51 and at least four second positioning pins 52. The two first positioning pins 51 are symmetrically arranged at the top of the connecting sleeve 2; the four second positioning pins 52 are symmetrically arranged at the bottom of the connecting sleeve 2; the sizes of the first positioning pins 51 and the second positioning pins 52 are both adapted to the parting surface of the production mold, which can realize the positioning of the pipe body 1 in the molding mold; at the same time, the symmetrical arrangement of multiple first positioning pins 51 and second positioning pins 52 can improve the uniformity of the force applied during the molding process of the pipe body 1, thereby improving the quality of the pipe body 1. The first positioning pins 51 and the second positioning pins 52 can be fixed on the steel skeleton 3 by screwing, which is convenient for adjusting the installation height of the first positioning pins 51 and the second positioning pins 52, so that the steel skeleton 3 can be positioned more accurately in the production mold, thereby improving the production quality of the composite pipe.

[0024] The first locating pin 51 and the second locating pin 52 are both connected to the steel skeleton 3, which can improve the connection strength between the pipe body 1 and the positioning device 5. The first locating pin 51 and the second locating pin 52 are both provided with lifting holes, which can facilitate the lifting and transportation of the pipe body 1, thereby improving construction efficiency and safety; at the same time, it is convenient for accurate alignment between the pipe fitting and the pipe, reducing the labor intensity of the installers and improving the installation quality of the overall pipeline.

[0025] Limiting platforms 21 are provided at both ends of the connecting sleeve 2. The limiting platforms 21 are arranged parallel to the sleeve opening of the connecting sleeve 2 to limit the insertion depth of the prefabricated pipe 4 and ensure the connection strength and stability between the connecting sleeve 2 and the prefabricated pipe 4.

[0026] In summary, the utility model connects the prefabricated pipe 4 and the steel skeleton 3 through the connecting sleeve 2, so that the lengths of the prefabricated pipes 4 at both ends of the pipe fitting can be customized according to the space requirements of the construction site, thereby reducing the phenomenon of having to increase the use of transition short pipes and electric melting sleeves in order to meet the requirements of the on-site space size during the construction process, and realizing a simple, fast and reliable connection between the large-diameter composite pipe fitting and the on-site steel-plastic composite pipeline, reducing the cost and difficulty of the connection, and improving the efficiency and quality of the connection; at the same time, the prefabricated pipe 4, the steel skeleton 3 and the connecting sleeve 2 are integrally injection molded, which can achieve The existing steel skeleton 3 and the prefabricated pipe 4 are simply, quickly and reliably connected to ensure the structural strength and stability of the pipe fittings, and avoid the risk of interlayer peeling and leakage when using transition short pipes and electric fusion sleeves for connection; at the same time, the positioning device 5 is adopted to realize the positioning of the pipe fitting body in the forming mold, simplify the forming process, improve the forming accuracy and quality, and set a lifting hole on the positioning device, which can facilitate the lifting and transportation of the pipe fitting body, improve the construction efficiency and safety, and facilitate the accurate alignment between the pipe fittings and the pipes, reduce the labor intensity of the installers, and improve the installation quality of the overall pipeline.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. 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 invention.

Claims

1. A large-diameter pipe and steel skeleton composite pipe fitting, characterized in that: It comprises a pipe body (1), wherein the pipe body (1) comprises a connecting sleeve (2); A steel frame (3) is embedded in the connecting sleeve (2) and is coaxially arranged with the connecting sleeve (2); Two prefabricated pipes (4) are symmetrically arranged at the two ends of the steel frame (3), and the prefabricated pipes (4) are concentrically arranged with the ends of the steel frame (3). The prefabricated pipes (4) are inserted into one end of the steel frame (3) and connected to the inner wall of the connecting sleeve (2).

2. A large-diameter pipe and steel skeleton composite pipe fitting according to claim 1, characterized in that: The pipe body (1) further comprises a positioning device (5) which can realize the positioning of the pipe body (1) in the molding die.

3. A large-diameter pipe and steel skeleton composite pipe fitting according to claim 2, characterized in that: The positioning device (5) comprises at least two first positioning pins (51) symmetrically arranged on the top of the connecting sleeve (2); At least four second positioning pins (52) are symmetrically arranged at the bottom of the connecting sleeve (2); the sizes of the first positioning pin (51) and the second positioning pin (52) are both compatible with the parting surface of the production mold.

4. A large-diameter pipe and steel skeleton composite pipe fitting according to claim 3, characterized in that: The first positioning pin (51) and the second positioning pin (52) are both connected to the steel frame (3).

5. The large-diameter pipe and steel skeleton composite pipe fitting according to claim 3, characterized in that: The first positioning pin (51) and the second positioning pin (52) are both provided with hanging holes.

6. The large-diameter pipe and steel skeleton composite pipe fitting according to claim 1, characterized in that: Limiting platforms (21) are provided at both ends of the connection sleeve (2), and the surface of the limiting platforms (21) is arranged parallel to the sleeve opening of the connection sleeve (2).

7. The large-diameter pipe and steel skeleton composite pipe fitting according to claim 1, characterized in that: The prefabricated pipe (4), the steel frame (3) and the connecting sleeve (2) are integrally injection-molded.

8. The large-diameter pipe and steel skeleton composite pipe fitting according to claim 1, characterized in that: The connecting sleeve (2) is V-shaped.

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