HDPE (high-density polyethylene) double-wall corrugated pipe connecting structure

Abstract

The utility model relates to the field of HDPE double-wall corrugated pipes, and discloses an HDPE double-wall corrugated pipe connecting structure which comprises a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is sealed, the second connecting pipe is located at the top of the first connecting pipe, and the other end of the first connecting pipe is fixedly communicated with a first corrugated pipe. The top of the first connecting pipe is fixedly connected with a first crown gear, a hole is formed in the center of the top of the first crown gear and penetrates through the top of the first connecting pipe, the bottom of the second connecting pipe is fixedly connected with a second crown gear, and a hole is formed in the center of the bottom of the second crown gear and penetrates through the bottom of the second connecting pipe. The first crown gear is meshed with the second crown gear, and a rubber pad is arranged between the first crown gear and the second crown gear. By means of the meshing structure of the first crown gear and the second crown gear, multi-angle adjustment between connecting pipes can be easily achieved, and the connecting device is suitable for connection of HDPE double-wall corrugated pipes in various complex environments and wide in application scene.

Description

Technical Field

[0001] The utility model relates to the field of HDPE double-wall corrugated pipes, in particular to a HDPE double-wall corrugated pipe connection structure. Background Art

[0002] With the rapid development of modern industry and urban construction, HDPE double-wall corrugated pipe, as a new type of high-performance pipe, is widely used in municipal engineering, electrical and telecommunications engineering, industry, agriculture, garden engineering, road engineering, mines and other fields because of its light weight, high pressure resistance, good toughness, fast construction and long life. In these applications, the connection structure of HDPE double-wall corrugated pipe is particularly critical, which is directly related to the safety, stability and service life of the pipeline system.

[0003] The current HDPE double-wall corrugated pipe connection structures mostly use hot-melt butt welding, welded pipe clamps, sleeve connections with sealing rings, etc. Although these connection methods can meet the connection requirements to a certain extent, in some special scenarios, such as when the connection angle needs to be adjusted frequently and high air tightness requirements are required, the current connection methods are inadequate. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides a HDPE double-wall corrugated pipe connection structure.

[0005] The technical solution adopted by this utility model:

[0006] A HDPE double-wall corrugated pipe connection structure, comprising a connecting pipe 1 and a connecting pipe 2, one end of the connecting pipe 1 is sealed, the connecting pipe 2 is located at the top of the connecting pipe 1, the other end of the connecting pipe 1 is fixedly connected to the corrugated pipe 1, both ends of the connecting pipe 2 are fixedly connected to the corrugated pipe 2, the top of the connecting pipe 1 is fixedly connected to a crown gear 1, the top center of the crown gear 1 is opened and passes through the top of the connecting pipe 1, the bottom of the connecting pipe 2 is fixedly connected to a crown gear 2, the bottom center of the crown gear 2 is opened and passes through the bottom of the connecting pipe 2, the crown gear 1 is meshed with the crown gear 2, and the crown gear 1 is fixedly connected to the crown gear 2. There is a rubber pad between the crown gear one and the crown gear two, the rubber pad is in a ring shape, the bottom of the connecting tube one is fixedly connected with a lower fixing ring, the top of the connecting tube two is fixedly connected with an upper fixing ring, the two gaskets are respectively located at the bottom of the lower fixing ring and the top of the upper fixing ring, a stud is provided between the inner sides of the two gaskets, the stud passes through the connecting tube one, the connecting tube two, the lower fixing ring and the upper fixing ring, both ends of the stud extend outward and are threadedly connected with nuts, the two gaskets are respectively located between the nut and the connecting tube one and between the nut and the connecting tube two.

[0007] The outer wall of the stud is sleeved with a rubber sleeve, and the outer walls at both ends of the rubber sleeve are fixedly connected with two gaskets respectively.

[0008] Beneficial effects of the utility model:

[0009] The utility model can easily realize multi-angle adjustment between connecting pipes through the meshing structure of crown gear one and crown gear two, and is suitable for connecting HDPE double-wall corrugated pipes in various complex environments. It has a wide range of usage scenarios. The use of rubber pads and rubber sleeves ensures that the connection structure has high air tightness during the adjustment and fixing process, avoiding gas or liquid leakage. The threaded fixing structure of the studs and nuts ensures the stability of the connection angle after fixing, thereby improving the overall safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 It is an exploded view of part of the structure of the utility model;

[0012] Figure 3 It is a partial structural sectional view of the utility model;

[0013] Figure 4 It is a structural schematic diagram of the stud of the utility model.

[0014] The specific reference numerals in all the drawings are: 1. connecting pipe 1; 2. connecting pipe 2; 3. bellows 1; 4. bellows 2; 5. crown gear 1; 6. crown gear 2; 7. rubber pad; 8. lower fixing ring; 9. upper fixing ring; 10. rubber sleeve; 11. gasket; 12. stud; 13. nut. DETAILED DESCRIPTION

[0015] like Figure 1-4As shown: a HDPE double-wall corrugated pipe connection structure, including a connecting pipe 1 and a connecting pipe 2, one end of the connecting pipe 1 is sealed, the connecting pipe 2 is located at the top of the connecting pipe 1, the other end of the connecting pipe 1 is fixedly connected with a corrugated pipe 3, both ends of the connecting pipe 2 are fixedly connected with a corrugated pipe 4, the top of the connecting pipe 1 is fixedly connected with a crown gear 5, the top center of the crown gear 5 is opened and passes through the top of the connecting pipe 1, the bottom of the connecting pipe 2 is fixedly connected with a crown gear 6, the bottom center of the crown gear 6 is opened and passes through the bottom of the connecting pipe 2, the crown gear 15 is meshed with the crown gear 26, and the crown gear 15 and the crown gear 26 are connected. There is a rubber pad 7 in between, the rubber pad 7 is fitted with the top of the crown gear 1 5 and the bottom of the crown gear 2 6, the rubber pad 7 is annular, the bottom of the connecting tube 1 is fixedly connected with a lower fixing ring 8, the top of the connecting tube 2 is fixedly connected with an upper fixing ring 9, two gaskets 11 are respectively located at the bottom of the lower fixing ring 8 and the top of the upper fixing ring 9, a stud 12 is provided between the inner sides of the two gaskets 11, the stud 12 passes through the connecting tube 1 1, the connecting tube 2 2, the lower fixing ring 8 and the upper fixing ring 9, both ends of the stud 12 extend outward and are threadedly connected with nuts 13, the two gaskets 11 are respectively located between the nut 13 and the connecting tube 1 and between the nut 13 and the connecting tube 2.

[0016] The outer wall of the stud 12 is sleeved with the rubber sleeve 10 , and the outer walls at both ends of the rubber sleeve 10 are fixedly connected with two gaskets 11 respectively.

[0017] The rubber sleeve 10 acts as a buffer and seal on the outer wall of the stud 12, ensuring that when the nut 13 is tightened, the inside of the connection structure will not be subjected to excessive pressure, while enhancing the overall air tightness and protecting the stud 12 from erosion by liquid or gas in the pipeline.

[0018] Place the connecting pipe 1 and the connecting pipe 2 in the corresponding positions of the bellows 1 3 and the bellows 2 4 to be connected, and connect the bellows 1 3 and the bellows 2 4 to the connecting pipe 1 and the connecting pipe 2 2 respectively, and check whether the rubber pad 7 is intact to ensure that it can fit tightly between the crown gear 1 5 and the crown gear 2 6;

[0019] Loosen the two nuts 13 to disengage crown gear 1 5 and crown gear 2 6, rotate connecting pipe 2 2 (or connecting pipe 1) to adjust the connection angle. When the connection angle is adjusted to the desired position, screw nuts 13 on both ends of the stud 12 and tighten them so that the nuts 13 fit tightly with the lower fixing ring 8 and the upper fixing ring 9 respectively, so that crown gear 1 5 and crown gear 2 6 are closely meshed again, and the rubber pad 7 is clamped by crown gear 1 5 and crown gear 2 6 to maintain a close fit with crown gear 1 5 and crown gear 2 6, thereby ensuring the airtightness between crown gear 1 5 and crown gear 2 6.

Claims

1. A HDPE double-wall corrugated pipe connection structure, comprising a connection pipe 1 (1) and a connection pipe 2 (2), characterized in that: One end of the connecting pipe (1) is sealed, the connecting pipe (2) is located at the top of the connecting pipe (1), the other end of the connecting pipe (1) is fixedly connected to the bellows (3), both ends of the connecting pipe (2) are fixedly connected to the bellows (4), the top of the connecting pipe (1) is fixedly connected to the crown gear (5), the top center of the crown gear (5) is opened and passes through the top of the connecting pipe (1), the bottom of the connecting pipe (2) is fixedly connected to the crown gear (6), the bottom center of the crown gear (6) is opened and passes through the bottom of the connecting pipe (2), the crown gear (5) is meshed with the crown gear (6), a rubber pad (7) is provided between the crown gear (5) and the crown gear (6), the rubber pad (7) and the crown gear (5) are connected to the crown gear (5). ) is fitted with the bottom of the crown gear 2 (6), the rubber pad (7) is annular, the bottom of the connecting pipe 1 (1) is fixedly connected with a lower fixing ring (8), the top of the connecting pipe 2 (2) is fixedly connected with an upper fixing ring (9), two gaskets (11) are respectively located at the bottom of the lower fixing ring (8) and the top of the upper fixing ring (9), a stud (12) is provided between the inner sides of the two gaskets (11), the stud (12) passes through the connecting pipe 1 (1), the connecting pipe 2 (2), the lower fixing ring (8) and the upper fixing ring (9), both ends of the stud (12) extend outwards and are threadedly connected with nuts (13), and the two gaskets (11) are respectively located between the nut (13) and the connecting pipe 1 (1) and between the nut (13) and the connecting pipe 2 (2).

2. A HDPE double-wall corrugated pipe connection structure according to claim 1, characterized in that: The outer wall of the stud (12) is sleeved with the rubber sleeve (10), and the outer walls at both ends of the rubber sleeve (10) are fixedly connected to two gaskets (11) respectively.

Images