High-density polyethylene (HDPE) pipe flaring connecting structure

Abstract

The utility model discloses an HDPE pipe flaring connecting structure, and relates to the technical field of pipelines. Comprising an HDPE pipe body, the HDPE pipe body comprises a first-stage HDPE pipe assembly, a second-stage HDPE pipe assembly and a third-stage HDPE pipe assembly, the second-stage HDPE pipe assembly, the first-stage HDPE pipe assembly and the third-stage HDPE pipe assembly are sequentially connected in a threaded mode, threaded grooves are formed in the two ends of a first-stage HDPE pipe, threaded grooves are formed in the ends, making contact with the first-stage HDPE pipe, of the second-stage HDPE pipe and the third-stage HDPE pipe, and threaded grooves are formed in the ends, making contact with the first-stage HDPE pipe, of the third-stage HDPE pipe. The first-class HDPE pipe, the second-class HDPE pipe and the third-class HDPE pipe are in threaded connection through the threaded grooves, when the first-class HDPE pipe, the second-class HDPE pipe and the third-class HDPE pipe are damaged, the first-class HDPE pipe, the second-class HDPE pipe and the third-class HDPE pipe can be independently replaced, and therefore waste of resources is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a HDPE pipe expansion connection structure. Background Art

[0002] HDPE pipe is a thermoplastic polyolefin pipe produced by ethylene copolymerization. Its raw material HDPE is a highly crystalline, non-polar thermoplastic resin. High-density polyethylene (HDPE) has excellent chemical stability, aging resistance and environmental stress cracking resistance. Existing corrugated pipes are mainly connected by expanding the end and plugging the end.

[0003] The invention discloses a deformation-proof bellows expansion structure and a plastic pipe structure thereof with publication number CN208474679U. By arranging one or more circles of convex and concave reinforcing ribs on the circumference of the pipe expansion, the annular force bearing capacity of the expansion is enhanced, and the deformation effect caused by thermal deformation or extrusion of the expansion is reduced. The problem that the expansion of the pipe is easily deformed due to thermal deformation or extrusion when the pipe comes off the production line, and the deformed expansion increases the difficulty of socket connection and greatly affects the construction efficiency.

[0004] However, in the actual working process of the above device, when the HDPE pipe is damaged, the entire HDPE pipe needs to be replaced and repaired, and the undamaged HDPE pipe can continue to be used, thus causing a waste of resources. For this reason, the applicant proposes a new device. Utility Model Content

[0005] The utility model aims to provide a HDPE pipe expansion connection structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a HDPE pipe flaring connection structure, comprising a HDPE pipe body, wherein the HDPE pipe body comprises a primary HDPE pipe assembly, a secondary HDPE pipe assembly and a tertiary HDPE pipe assembly, wherein the secondary HDPE pipe assembly, the primary HDPE pipe assembly and the tertiary HDPE pipe assembly are threadedly connected in sequence, and clamping mechanisms are arranged in sequence between the contact surfaces of the secondary HDPE pipe assembly, the primary HDPE pipe assembly and the tertiary HDPE pipe assembly, and the secondary HDPE pipe assembly, the primary HDPE pipe assembly and the tertiary HDPE pipe assembly are clamped and fastened in sequence by the clamping mechanism, and the clamping mechanism can improve the stability between the contact surfaces of the secondary HDPE pipe assembly, the primary HDPE pipe assembly and the tertiary HDPE pipe assembly.

[0007] Preferably, the first-level HDPE pipe assembly includes a type of HDPE pipe, the outer walls of the type of HDPE pipe are respectively provided with threaded grooves at both ends, and the inner walls of the type of HDPE pipe are respectively provided with a plurality of evenly distributed plug-in grooves at the top and bottom at both ends.

[0008] Preferably, the secondary HDPE pipe assembly includes a second type of HDPE pipe, a thread groove is provided on the inner side of one end of the contact surface between the second type of HDPE pipe and the first type of HDPE pipe, the first type of HDPE pipe and the second type of HDPE pipe are threadedly connected via the thread groove, and the other end of the second type of HDPE pipe is threadedly connected with a threaded cap.

[0009] Preferably, the three-stage HDPE pipe assembly includes three types of HDPE pipes, a thread groove is provided on the inner side of one end of the contact surface between the three types of HDPE pipes and the first type of HDPE pipe, the first type of HDPE pipe and the three types of HDPE pipe are threadedly connected via the thread groove, and the other end of the three types of HDPE pipes is fixedly connected with a fixed sleeve, and the fixed sleeve is threadedly connected with screws around it.

[0010] Preferably, connecting holes are respectively provided at the top and bottom ends of the middle part of the outer wall of the Class II HDPE pipe and the Class III HDPE pipe, and matching buttons are inserted inside the connecting holes. The clamping mechanism includes an arc-shaped plate, and the arc-shaped plates are provided in two groups, each group of arc-shaped plates is provided with two arc-shaped plates, and the arc-shaped plates are symmetrically distributed on both sides of the inner walls of the Class II HDPE pipe and the Class III HDPE pipe, and the bottom of the button is fixed to the top of the arc-shaped plate.

[0011] Preferably, the outer wall of the arc plate and the inner wall of the Class II HDPE pipe and the Class III HDPE pipe do not contact each other, and a plurality of evenly distributed springs are fixedly connected to the top and bottom of one end of the arc plate, and the springs are fixed to the inner walls of the Class II HDPE pipe and the Class III HDPE pipe, and a plurality of evenly distributed plug-in columns are fixedly connected to the top and bottom of the other end of the arc plate, and the plug-in columns and the plug-in grooves are matched.

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

[0013] The HDPE pipe expansion connection structure is provided with a first-class HDPE pipe, a second-class HDPE pipe and a third-class HDPE pipe, thread grooves are provided at both ends of the first-class HDPE pipe, thread grooves are provided at one end of the second-class HDPE pipe and the third-class HDPE pipe that are in contact with the first-class HDPE pipe, the first-class HDPE pipe, the second-class HDPE pipe and the third-class HDPE pipe are threadedly connected through the thread grooves, so when the first-class HDPE pipe, the second-class HDPE pipe and the third-class HDPE pipe are damaged, the first-class HDPE pipe, the second-class HDPE pipe and the third-class HDPE pipe can be replaced separately, thereby avoiding waste of resources.

[0014] At the same time, by opening a number of evenly distributed plug-in grooves at the top and bottom of both ends of the inner wall of the first type HDPE pipe, buttons are opened at the top and bottom of the middle of the outer wall of the second type HDPE pipe and the third type HDPE pipe, the bottom of the button is fixedly connected to an arc plate, one end of the arc plate is fixedly connected to a spring, the arc plate and the second type HDPE pipe and the third type HDPE pipe are fixedly connected through the spring, and the other end of the arc plate is fixedly connected to the plug-in column, and the plug-in column and the plug-in groove are adapted to each other, so as to tighten the first type HDPE pipe, the second type HDPE pipe and the third type HDPE pipe to avoid loosening during threaded connection and causing the first type HDPE pipe, the second type HDPE pipe and the third type HDPE pipe to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the axial side of the HDPE pipe expansion connection mechanism of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the clamping mechanism of the utility model;

[0017] Figure 3 This is a structural schematic diagram of the first-level HDPE pipe assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the secondary HDPE pipe assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the three-stage HDPE pipe assembly of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the HDPE pipe axial side of the utility model.

[0021] In the figure: 1. HDPE pipe body; 2. clamping mechanism; 201. arc plate; 202. button; 203. spring; 204. plug-in column; 11. primary HDPE pipe assembly; 111. first-class HDPE pipe; 112. plug-in groove; 12. secondary HDPE pipe assembly; 121. second-class HDPE pipe; 122. connecting hole; 123. threaded cover; 13. tertiary HDPE pipe assembly; 131. third-class HDPE pipe; 132. screw; 133. fixing sleeve. DETAILED DESCRIPTION

[0022] 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 the embodiments. Based on the embodiments in 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.

[0023] HDPE pipe is a thermoplastic polyolefin pipe produced by ethylene copolymerization. Its raw material HDPE is a highly crystalline, non-polar thermoplastic resin. The existing corrugated pipe is mainly connected by expanding and socketing the end socket. The publication number is CN208474679U, which is an anti-deformation corrugated pipe expansion structure and its plastic pipe structure. In the actual working process, when the HDPE pipe is damaged, the entire HDPE pipe needs to be replaced and repaired, and the undamaged HDPE pipe can continue to be used, thus causing a waste of resources. For this reason, the applicant proposes a new device.

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a HDPE pipe expansion connection structure, including a HDPE pipe body 1, the HDPE pipe body 1 includes a primary HDPE pipe assembly 11, a secondary HDPE pipe assembly 12 and a tertiary HDPE pipe assembly 13, the secondary HDPE pipe assembly 12, the primary HDPE pipe assembly 11 and the tertiary HDPE pipe assembly 13 are threadedly connected in sequence, and a clamping mechanism 2 is sequentially arranged between the contact surfaces of the secondary HDPE pipe assembly 12, the primary HDPE pipe assembly 11 and the tertiary HDPE pipe assembly 13, the secondary HDPE pipe assembly 12, the primary HDPE pipe assembly 11 and the tertiary HDPE pipe assembly 13 are clamped and fastened in sequence by the clamping mechanism 2, and the clamping mechanism 2 can improve the secondary HDPE pipe assembly 12, the primary HDPE pipe assembly 11 and the tertiary HDPE pipe assembly 13. In order to improve the stability of the contact surface between the component 11 and the tertiary HDPE pipe assembly 13, a first-class HDPE pipe 111, a second-class HDPE pipe 121 and a third-class HDPE pipe 131 are arranged, thread grooves are opened at both ends of the first-class HDPE pipe 111, and thread grooves are opened at the ends of the second-class HDPE pipe 121 and the third-class HDPE pipe 131 that are in contact with the first-class HDPE pipe 111. The first-class HDPE pipe 111, the second-class HDPE pipe 121 and the third-class HDPE pipe 131 are threadedly connected through the thread grooves. In this way, when the first-class HDPE pipe 111, the second-class HDPE pipe 121 and the third-class HDPE pipe 131 are damaged, the first-class HDPE pipe 111, the second-class HDPE pipe 121 and the third-class HDPE pipe 131 can be replaced separately, thereby avoiding waste of resources.

[0025] The primary HDPE pipe assembly 11 comprises a type of HDPE pipe 111 , wherein the outer walls of the type of HDPE pipe 111 are provided with thread grooves at both ends, and the inner walls of the type of HDPE pipe 111 are provided with a plurality of evenly distributed plug-in grooves 112 at the top and bottom of both ends.

[0026] The secondary HDPE pipe assembly 12 includes a second type of HDPE pipe 121. A threaded groove is provided on the inner side of one end of the contact surface between the second type of HDPE pipe 121 and the first type of HDPE pipe 111. The first type of HDPE pipe 111 and the second type of HDPE pipe 121 are threadedly connected through the threaded groove. A threaded cap 123 is threadedly connected to the other end of the second type of HDPE pipe 121. By threading the threaded cap 123 to the other end of the second type of HDPE pipe 121, the threaded cap 123 can seal and protect the second type of HDPE pipe 121 when the HDPE pipe is not needed.

[0027] The three-level HDPE pipe assembly 13 includes three types of HDPE pipes 131. A threaded groove is provided on the inner side of one end of the contact surface between the three types of HDPE pipes 131 and the first type of HDPE pipe 111. The first type of HDPE pipe 111 and the third type of HDPE pipe 131 are threadedly connected through the threaded groove. The other end of the three types of HDPE pipes 131 is fixedly connected with a fixed sleeve 133, and the fixed sleeve 133 is threadedly connected with screws 132 around it. By fixing the fixed sleeve 133 on the other end of the three types of HDPE pipes 131 and the fixed sleeve 133 is threadedly connected with screws 132 around it, it is convenient to install and fix the HDPE pipe.

[0028] The top and bottom ends of the middle part of the outer wall of the second HDPE pipe 121 and the third HDPE pipe 131 are respectively provided with connecting holes 122, and the inside of the connecting hole 122 is plugged with a matching button 202, and the clamping mechanism 2 includes an arc plate 201, and the arc plate 201 is provided with two groups, and each group of arc plates 201 is provided with two, and the arc plates 201 are symmetrically distributed on both sides of the inner wall of the second HDPE pipe 121 and the third HDPE pipe 131, respectively. The bottom of the button 202 is fixed to the top of the arc plate 201, and the staff can conveniently disassemble and install the first HDPE pipe 111, the second HDPE pipe 121 and the third HDPE pipe 131 through the button 202.

[0029] The outer wall of the arc plate 201 does not contact the inner wall of the second type HDPE pipe 121 and the third type HDPE pipe 131. The top and bottom of one end of the arc plate 201 are respectively fixedly connected with a plurality of evenly distributed springs 203. The springs 203 are fixed to the inner wall of the second type HDPE pipe 121 and the third type HDPE pipe 131. The top and bottom of the other end of the arc plate 201 are respectively fixedly connected with a plurality of evenly distributed plug-in columns 204. The plug-in columns 204 are adapted to the plug-in grooves 112. By respectively opening a plurality of evenly distributed plug-in grooves 112 at the top and bottom of both ends of the inner wall of the first type HDPE pipe 111, the outer wall of the second type HDPE pipe 121 and the third type HDPE pipe 131 is provided with a plurality of evenly distributed plug-in columns 204. Buttons 202 are respectively provided at the top and bottom of the part, and the bottom of the button 202 is fixedly connected to the arc plate 201, one end of the arc plate 201 is fixedly connected to the spring 203, the arc plate 201 and the second type HDPE pipe 121 and the third type HDPE pipe 131 are fixedly connected through the spring 203, and the other end of the arc plate 201 is fixedly connected to the plug-in column 204, and the plug-in column 204 and the plug-in groove 112 are adapted to tighten the first type HDPE pipe 111, the second type HDPE pipe 121 and the third type HDPE pipe 131 to prevent the first type HDPE pipe 111, the second type HDPE pipe 121 and the third type HDPE pipe 131 from falling off due to loosening during the threaded connection.

[0030] Although the 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A HDPE pipe expansion connection structure, comprising a HDPE pipe body (1), characterized in that: The HDPE pipe body (1) comprises a primary HDPE pipe assembly (11), a secondary HDPE pipe assembly (12) and a tertiary HDPE pipe assembly (13); the secondary HDPE pipe assembly (12), the primary HDPE pipe assembly (11) and the tertiary HDPE pipe assembly (13) are threadedly connected in sequence; a clamping mechanism (2) is arranged in sequence between the contact surfaces of the secondary HDPE pipe assembly (12), the primary HDPE pipe assembly (11) and the tertiary HDPE pipe assembly (13); the secondary HDPE pipe assembly (12), the primary HDPE pipe assembly (11) and the tertiary HDPE pipe assembly (13) are clamped and fastened in sequence by the clamping mechanism (2); the clamping mechanism (2) can improve the stability between the contact surfaces of the secondary HDPE pipe assembly (12), the primary HDPE pipe assembly (11) and the tertiary HDPE pipe assembly (13).

2. The HDPE pipe expansion connection structure according to claim 1, characterized in that: The first-level HDPE pipe assembly (11) comprises a type of HDPE pipe (111), wherein the outer walls of the type of HDPE pipe (111) are provided with thread grooves at both ends, and the inner walls of the type of HDPE pipe (111) are provided with a plurality of evenly distributed plug-in grooves (112) at the top and bottom of both ends.

3. The HDPE pipe expansion connection structure according to claim 2, characterized in that: The secondary HDPE pipe assembly (12) comprises a second type of HDPE pipe (121), a thread groove is provided on the inner side of one end of the contact surface between the second type of HDPE pipe (121) and the first type of HDPE pipe (111), the first type of HDPE pipe (111) and the second type of HDPE pipe (121) are threadedly connected via the thread groove, and the other end of the second type of HDPE pipe (121) is threadedly connected with a threaded cap (123).

4. The HDPE pipe expansion connection structure according to claim 3, characterized in that: The three-level HDPE pipe assembly (13) comprises three types of HDPE pipes (131), a thread groove is provided on the inner side of one end of the contact surface between the three types of HDPE pipes (131) and the first type of HDPE pipe (111), the first type of HDPE pipe (111) and the three types of HDPE pipes (131) are threadedly connected via the thread groove, and the other end of the three types of HDPE pipes (131) is fixedly connected to a fixing sleeve (133), and the fixing sleeve (133) is threadedly connected to screws (132) around the four sides.

5. The HDPE pipe expansion connection structure according to claim 4, characterized in that: The top and bottom ends of the middle parts of the outer walls of the second-class HDPE pipe (121) and the third-class HDPE pipe (131) are respectively provided with connection holes (122); a matching button (202) is inserted into the interior of the connection hole (122); the clamping mechanism (2) comprises an arc-shaped plate (201); two groups of the arc-shaped plates (201) are provided, and each group of the arc-shaped plates (201) is provided with two arc-shaped plates; the arc-shaped plates (201) are respectively symmetrically distributed on both sides of the inner walls of the second-class HDPE pipe (121) and the third-class HDPE pipe (131); the bottom of the button (202) is fixed to the top of the arc-shaped plate (201).

6. The HDPE pipe expansion connection structure according to claim 5, characterized in that: The outer wall of the arc plate (201) and the inner wall of the second type HDPE pipe (121) and the third type HDPE pipe (131) are not in contact with each other; the top and the bottom of one end of the arc plate (201) are respectively fixedly connected with a plurality of evenly distributed springs (203); the springs (203) and the inner wall of the second type HDPE pipe (121) and the third type HDPE pipe (131) are fixedly connected; the top and the bottom of the other end of the arc plate (201) are respectively fixedly connected with a plurality of evenly distributed plug-in columns (204); the plug-in columns (204) are matched with the plug-in grooves (112).

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