High-strength aluminum alloy plastic-lined composite pipe

Abstract

The utility model relates to the technical field of aluminum alloy plastic-lined composite pipes, and provides a high-strength aluminum alloy plastic-lined composite pipe which comprises a plastic-lined pipe, a first limiting groove is formed in the inner wall of one side of the plastic-lined pipe, and a second limiting groove is formed in the inner wall of the other side of the plastic-lined pipe. The outer side of the lining plastic pipe is fixedly sleeved with an outer aluminum alloy pipe, one side of the end of the lining plastic pipe is provided with a first reinforcing sleeve in a clamped mode, the first reinforcing sleeve comprises a first clamping sleeve and a first limiting belt, one side of the first reinforcing sleeve is provided with a second reinforcing sleeve, and the second reinforcing sleeve comprises a second clamping sleeve and a second limiting belt. The first clamping sleeve of the first reinforcing sleeve is clamped to the end of the composite pipe, so that the first limiting plate is clamped to the inner side of the first limiting groove, clamping of the end of the outer aluminum alloy pipe and the end of the lining plastic pipe and similar operation of the second reinforcing sleeve are achieved under the condition that the appearance of the composite pipe is not affected, and therefore the connection tightness of the inner pipeline and the outer pipeline is improved; the strength of the composite pipe is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy lined plastic composite pipes, in particular to a high-strength aluminum alloy lined plastic composite pipe. Background Art

[0002] Aluminum alloy lined plastic composite pipe is a new type of practical pipe developed on the basis of traditional plastic pipes. It combines the physical and chemical advantages of metal and plastic materials. It has the advantages of light weight, 100% oxygen resistance, UV resistance, clean and hygienic installation, strong sealing and maintenance-free in water supply pipe applications. It solves the defects of plastic pipes such as bending, fear of impact, and easy aging after thermal expansion and contraction in indoor open installation. The outer layer is an aluminum alloy pipe and the inner layer is a thermoplastic plastic pipe, which is prestressed and compounded into a double-layer composite pipe.

[0003] Since the aluminum alloy lined plastic composite pipe used is divided into two layers of inner and outer pipes, and the end lacks a protective structure, the inner lining pipe and the outer pipe are easily separated when the end is hit, affecting the overall strength of the composite pipe. Therefore, a simple structure and high strength aluminum alloy lined plastic composite pipe is needed. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a high-strength aluminum alloy lined plastic composite pipe, which has the characteristics of high strength, simple structure and strong practicality.

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

[0006] A high-strength aluminum alloy lined plastic composite pipe, comprising an inner plastic lined pipe, wherein a first limiting groove is provided on the inner wall of one side of the inner plastic lined pipe, a second limiting groove is provided on the inner wall of the other side of the inner plastic lined pipe, an outer aluminum alloy pipe is fixedly sleeved on the outer side of the inner plastic lined pipe, a first clamping groove is symmetrically provided on one side of the outer wall of the outer aluminum alloy pipe, a second clamping groove is symmetrically provided on the other side of the outer wall of the outer aluminum alloy pipe, one end of the first clamping groove is through-connected with one end of the second clamping groove, a first reinforcement sleeve is clamped on one side of the end of the inner plastic lined pipe, and the first reinforcement sleeve comprises a first clamping sleeve and a first limiting belt, one end of the first clamping sleeve is engaged with the inner side of the first limiting groove, the other end of the first clamping sleeve is fixedly connected with a first limiting belt, the first limiting belt is engaged with the inner side of the first clamping groove, a second reinforcing sleeve is provided on one side of the first reinforcing sleeve, the second reinforcing sleeve includes a second clamping sleeve and a second limiting belt, one end of the second clamping sleeve is engaged with the inner side of the second limiting groove, the other end of the second clamping sleeve is fixedly connected with a second limiting belt, the second limiting belt is engaged with the inner side of the second clamping groove, and the first limiting belt and the second limiting belt are engaged with each other.

[0007] As an optimal technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, the first clamping sleeve includes a first limiting plate, which is clamped on the inner side of the first limiting groove, and the second clamping sleeve includes a second limiting plate, which is clamped on the inner side of the second limiting groove.

[0008] As an optimal technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, first docking grooves are symmetrically provided at both ends of the first limiting belt, and first docking plates are symmetrically fixed on the side walls at both ends of the first limiting belt, and second docking grooves are symmetrically provided at both ends of the second limiting belt, and the first docking plate is clamped on the inner side of the second docking groove, and second docking plates are symmetrically fixed on the side walls at both ends of the second limiting belt, and the second docking plate is clamped on the inner side of the first docking groove.

[0009] As an optimal technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, a first connecting groove is provided on one side of the end of the inner plastic lined pipe, and the first connecting groove is connected to the first limiting groove; a third connecting groove is provided on one side of the end of the outer aluminum alloy pipe, and one end of the first limiting plate is fixedly connected to a first connecting plate, and the first connecting plate is engaged with the inner sides of the first connecting groove and the third connecting groove, and one end of the first connecting plate is fixedly connected to a second connecting plate, and one end of the second connecting plate is fixedly connected to the middle of the first limiting belt.

[0010] As an optimal technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, a second connecting groove is opened on the other side of the end of the inner plastic lined pipe, and the second connecting groove is connected to the second limiting groove. A fourth connecting groove is opened on the other side of the end of the outer aluminum alloy pipe, and one end of the second limiting plate is fixedly connected to a third connecting plate, and the third connecting plate is engaged with the inner sides of the second connecting groove and the fourth connecting groove, and one end of the third connecting plate is fixedly connected to a fourth connecting plate, and one end of the fourth connecting plate is fixedly connected to the middle of the second limiting belt.

[0011] As an optimal technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, the width of one inner end of the first limit groove is greater than the width of the other inner end, the size of the first limit plate is compatible with the inner size of the first limit groove, the second limit plate is symmetrically arranged with the first limit plate, and the first limit groove is symmetrically arranged with the second limit groove.

[0012] As an optimal technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, the first reinforcement sleeve and the second reinforcement sleeve are both made of aluminum alloy.

[0013] As a preferred technical solution for a high-strength aluminum alloy lined plastic composite pipe of the utility model, the size of the first docking plate is matched with the size of the second docking groove, and the size of the second docking plate is matched with the size of the first docking groove.

[0014] Compared with the existing technology, the utility model has the following beneficial effects:

[0015] The utility model provides a first limiting groove and a second limiting groove on the inner wall of the inner plastic lining pipe of the plastic-lined composite pipe, and a first clamping groove and a second clamping groove on the outer wall of the outer aluminum alloy pipe, and clamps the first clamping sleeve of the first reinforcing sleeve on the end of the composite pipe so that the first limiting plate on the first clamping sleeve is clamped on the inner side of the first limiting groove, and then the first limiting belt on one side of the first clamping sleeve is clamped on the inner side of the first clamping groove, and the first clamping belt is clamped to realize the pulling and limiting of the first clamping sleeve through the clamping of the first limiting belt, so as to improve the clamping stability of the first clamping sleeve, and the first clamping sleeve is clamped on the outer side of the composite pipe end, so as to realize the clamping of the outer aluminum alloy pipe end and the inner plastic lining pipe end without affecting the appearance of the composite pipe, and the second reinforcing sleeve is operated in the same way, so as to improve the tightness of the connection between the inner and outer pipelines and enhance the strength of the composite pipe;

[0016] The width of one end of the limit groove is smaller than the width of the other end, and the limit plate is also wide at one end and narrow at the other end, so that the limit plate is more stable after being engaged with the inner side of the limit groove, and is not easy to slip outward, thereby improving the installation stability of the ferrule;

[0017] In addition, the ends of the first clamping slot are through-connected with the ends of the second clamping slot, and docking slots and docking plates are provided on the first limiting belt and the second limiting belt. The docking plates of the two limiting belts are correspondingly engaged with the docking slots, thereby improving the stability of the connection between the two limiting belts and the clamping slots, further improving the installation stability of the two ferrules, and enhancing the strength of the composite pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to better describe the technical solution of the utility model in detail, the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0020] Figure 2 This is a schematic diagram of the connection between the inner lining plastic pipe and the outer aluminum alloy pipe of the utility model;

[0021] Figure 3 It is a three-dimensional cross-sectional view of the inner plastic-lined pipe and the outer aluminum alloy pipe of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the first reinforcement sleeve and the second reinforcement sleeve of the utility model;

[0023] Figure 5 It is a three-dimensional schematic diagram of the first reinforcement sleeve of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of the second reinforcement sleeve of the utility model.

[0025] In the figure: 1. inner lining plastic pipe; 11. first limiting groove; 12. second limiting groove; 13. first connecting groove; 14. second connecting groove; 2. outer aluminum alloy pipe; 21. first clamping groove; 22. second clamping groove; 23. third connecting groove; 24. fourth connecting groove; 3. first reinforcing sleeve; 31. first clamping sleeve; 311. first limiting plate; 312. first connecting plate; 313. second connecting plate; 32. first limiting belt; 321. first docking groove; 322. first docking plate; 4. second reinforcing sleeve; 41. second clamping sleeve; 411. second limiting plate; 412. third connecting plate; 413. fourth connecting plate; 42. second limiting belt; 421. second docking groove; 422. second docking plate. DETAILED DESCRIPTION

[0026] 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 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.

[0027] Example

[0028] See also Figure 1-6 As shown, the utility model provides the following technical solutions: a high-strength aluminum alloy lined plastic composite pipe, including an inner plastic lined pipe 1, which can be referred to in the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4A first limiting groove 11 is provided on the inner wall of one side of the inner lining plastic tube 1, a second limiting groove 12 is provided on the inner wall of the other side of the inner lining plastic tube 1, and an outer aluminum alloy tube 2 is fixedly sleeved on the outer side of the inner lining plastic tube 1; a first reinforcing sleeve 3 is clamped on one side of the end of the inner lining plastic tube 1, and the first reinforcing sleeve 3 includes a first clamping sleeve 31 and a first limiting belt 32, and one end of the first clamping sleeve 31 is clamped on the inner side of the first limiting groove 11; the first clamping sleeve 31 includes a first limiting plate 311, and the first limiting plate 311 is clamped on the inner side of the first limiting groove 11, and the clamping is tight, and the limiting plate is arc-shaped and fits the inner wall of the tube; a second The reinforcing sleeve 4, the second reinforcing sleeve 4 includes a second clamping sleeve 41 and a second limiting belt 42, one end of the second clamping sleeve 41 is clamped on the inner side of the second limiting groove 12; the second clamping sleeve 41 includes a second limiting plate 411, and the second limiting plate 411 is clamped on the inner side of the second limiting groove 12; a first connecting groove 13 is opened on one side of the end of the inner lining plastic pipe 1, and the first connecting groove 13 is connected to the first limiting groove 11 through, and a third connecting groove 23 is opened on one side of the end of the outer aluminum alloy pipe 2, and a first connecting plate 312 is fixedly connected to one end of the first limiting plate 311, and the first connecting plate 312 is clamped between the first connecting groove 13 and the third connecting groove 23, so that the first ferrule 31 is stably engaged with the outer side of the end of the composite pipe; a second connecting groove 14 is provided on the other side of the end of the inner lining plastic pipe 1, and the second connecting groove 14 is connected to the second limiting groove 12, and a fourth connecting groove 24 is provided on the other side of the end of the outer aluminum alloy pipe 2, and one end of the second limiting plate 411 is fixedly connected with a third connecting plate 412, and the third connecting plate 412 is engaged with the inner side of the second connecting groove 14 and the fourth connecting groove 24, so that the second ferrule 41 is stably engaged with the outer side of the end of the composite pipe, thereby improving the tightness of the connection between the inner and outer pipes of the composite pipe; the width of the inner end of the first limiting groove 11 is greater than the inner end The width of the other end, the size of the first limit plate 311 is adapted to the inner size of the first limit groove 11, so that the limit plate is not easy to fall off after being engaged, the second limit plate 411 is symmetrically arranged with the first limit plate 311, and the first limit groove 11 is symmetrically arranged with the second limit groove 12; the first reinforcement sleeve 3 and the second reinforcement sleeve 4 are both made of aluminum alloy; when using a composite pipe, the first clamping sleeve 31 and the second clamping sleeve 41 are respectively engaged with the end of the composite pipe to achieve clamping and limiting of the inner and outer layers of the pipe, improve the tightness of the pipeline connection, enhance the strength of the composite pipe, and avoid the situation where the end of the pipe is easily detached after being hit by an external impact.

[0029] Reference Figure 2 and Figure 4As shown, specifically, a first slot 21 is symmetrically provided on one side of the outer wall of the outer aluminum alloy tube 2, and a second slot 22 is symmetrically provided on the other side of the outer wall of the outer aluminum alloy tube 2, and one end of the first slot 21 is connected through one end of the second slot 22; the other end of the first ferrule 31 is fixedly connected with a first limiting belt 32, and the first limiting belt 32 is engaged with the inner side of the first slot 21, and the first limiting belt 32 is used to limit the pulling of the first ferrule 31; the other end of the second ferrule 41 is fixedly connected with a second limiting belt 42, and the second limiting belt 42 is engaged with the inner side of the second slot 22, and the second limiting belt 42 realizes the pulling and limiting of the second ferrule 41; one end of the first connecting plate 312 is fixedly connected with a second connecting plate 313, and one end of the second connecting plate 313 is fixedly connected to the middle of the first limiting belt 32; one end of the third connecting plate 412 is fixedly connected with a fourth connecting plate 413, and one end of the fourth connecting plate 413 is fixedly connected to the middle of the second limiting belt 42; after the first ferrule 31 and the second ferrule 41 are clamped to the end of the composite pipe, the first limiting belt 32 and the second limiting belt 42 are pulled and clamped to improve the stability of the clamping of the two ferrules, thereby ensuring the strength of the composite pipe.

[0030] Reference Figure 4 , Figure 5 and Figure 6 As shown, specifically, the first limiting belt 32 and the second limiting belt 42 are engaged with each other; first docking grooves 321 are symmetrically provided at both ends of the first limiting belt 32, and first docking plates 322 are symmetrically fixed on the side walls at both ends of the first limiting belt 32, and second docking grooves 421 are symmetrically provided at both ends of the second limiting belt 42. The first docking plate 322 is engaged with the inner side of the second docking groove 421, and the second docking plates 422 are symmetrically fixed on the side walls at both ends of the second limiting belt 42. The second docking plate 422 is engaged with the inner side of the first docking groove 321. After the engagement, the first limiting belt 32 and the second limiting belt 42 are sleeved on the outer side of the composite pipe, thereby improving the stability of the connection between the two limiting belts; the first docking plate 32 2 is compatible with the size of the second docking groove 421, and the size of the second docking plate 422 is compatible with the size of the first docking groove 321. In this solution, the gap between the limit plate and the limit groove, the gap between the limit belt and the slot, and the gap between the docking plate and the docking groove can all be ignored, so that the structure is more tightly engaged without affecting the appearance of the composite pipe. At the same time, the engagement stability is strong (the engagement gap in the attached figure is for the convenience of observing the structure, and the structures can be tightly fitted in actual use); this solution improves the tightness of the connection between the limit belts by the mutual engagement of the limit belts on both sides, thereby further improving the stability of the installation of the ferrules on both sides, enhancing the strength of the composite pipe, and has a simple structure and strong practicality.

[0031] After the first ferrule 31 is in operation, the ferrule 31 is tightened and tightened, and the first ferrule 31 is tightened to the inner side of the first and second ferrules 31. The ferrule 31 is then tightened and tightened to the inner side of the first and second ferrules 31.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-strength aluminum alloy lined plastic composite pipe, comprising an inner plastic lined pipe (1), characterized in that: A first limiting groove (11) is provided on the inner wall of one side of the inner plastic lining tube (1), and a second limiting groove (12) is provided on the inner wall of the other side of the inner plastic lining tube (1). An outer aluminum alloy tube (2) is fixedly sleeved on the outer side of the inner plastic lining tube (1). A first clamping groove (21) is symmetrically provided on one side of the outer wall of the outer aluminum alloy tube (2), and a second clamping groove (22) is symmetrically provided on the other side of the outer wall of the outer aluminum alloy tube (2). One end of the first clamping groove (21) is through-connected with one end of the second clamping groove (22). A first reinforcement sleeve (3) is clamped on one side of the end of the inner plastic lining tube (1). The first reinforcement sleeve (3) comprises a first clamping sleeve (31) and a first limiting belt (32). The first clamping sleeve (31) is provided with a first clamping sleeve (31) and a first limiting belt (32). One end of the first clamping sleeve (31) is engaged with the inner side of the first limiting groove (11), the other end of the first clamping sleeve (31) is fixedly connected with a first limiting belt (32), the first limiting belt (32) is engaged with the inner side of the first clamping groove (21), a second reinforcing sleeve (4) is provided on one side of the first reinforcing sleeve (3), the second reinforcing sleeve (4) comprises a second clamping sleeve (41) and a second limiting belt (42), one end of the second clamping sleeve (41) is engaged with the inner side of the second limiting groove (12), the other end of the second clamping sleeve (41) is fixedly connected with a second limiting belt (42), the second limiting belt (42) is engaged with the inner side of the second clamping groove (22), and the first limiting belt (32) and the second limiting belt (42) are engaged with each other.

2. The high-strength aluminum alloy lined plastic composite pipe according to claim 1, characterized in that: The first clamping sleeve (31) comprises a first limiting plate (311), the first limiting plate (311) is engaged with the inner side of the first limiting groove (11), and the second clamping sleeve (41) comprises a second limiting plate (411), the second limiting plate (411) is engaged with the inner side of the second limiting groove (12).

3. The high-strength aluminum alloy lined plastic composite pipe according to claim 2, characterized in that: The first limiting belt (32) is symmetrically provided with first docking grooves (321) at both ends, and first docking plates (322) are symmetrically fixedly provided on the side walls at both ends of the first limiting belt (32). The second limiting belt (42) is symmetrically provided with second docking grooves (421) at both ends, and the first docking plates (322) are engaged with the inner side of the second docking groove (421). The second limiting belt (42) is symmetrically fixedly provided with second docking plates (422) on the side walls at both ends, and the second docking plates (422) are engaged with the inner side of the first docking groove (321).

4. The high-strength aluminum alloy lined plastic composite pipe according to claim 3, characterized in that: A first connecting groove (13) is provided on one side of the end of the inner plastic lining tube (1), and the first connecting groove (13) is connected to the first limiting groove (11); a third connecting groove (23) is provided on one side of the end of the outer aluminum alloy tube (2); one end of the first limiting plate (311) is fixedly connected to a first connecting plate (312), and the first connecting plate (312) is engaged with the inner sides of the first connecting groove (13) and the third connecting groove (23); one end of the first connecting plate (312) is fixedly connected to a second connecting plate (313), and one end of the second connecting plate (313) is fixedly connected to the middle of the first limiting belt (32).

5. The high-strength aluminum alloy lined plastic composite pipe according to claim 4, characterized in that: A second connecting groove (14) is provided on the other side of the end of the inner plastic lining tube (1), and the second connecting groove (14) is connected to the second limiting groove (12); a fourth connecting groove (24) is provided on the other side of the end of the outer aluminum alloy tube (2); one end of the second limiting plate (411) is fixedly connected to a third connecting plate (412), and the third connecting plate (412) is engaged with the inner sides of the second connecting groove (14) and the fourth connecting groove (24); one end of the third connecting plate (412) is fixedly connected to a fourth connecting plate (413), and one end of the fourth connecting plate (413) is fixedly connected to the middle of the second limiting belt (42).

6. The high-strength aluminum alloy lined plastic composite pipe according to claim 5, characterized in that: The width of one inner end of the first limiting groove (11) is greater than the width of the other inner end; the size of the first limiting plate (311) is adapted to the inner size of the first limiting groove (11); the second limiting plate (411) is symmetrically arranged with the first limiting plate (311); and the first limiting groove (11) is symmetrically arranged with the second limiting groove (12).

7. The high-strength aluminum alloy lined plastic composite pipe according to claim 6, characterized in that: The first reinforcement sleeve (3) and the second reinforcement sleeve (4) are both made of aluminum alloy.

8. The high-strength aluminum alloy lined plastic composite pipe according to claim 7, characterized in that: The size of the first docking plate (322) matches the size of the second docking groove (421), and the size of the second docking plate (422) matches the size of the first docking groove (321).

Images