Polyolefin alloy material double-wall corrugated pipe

Abstract

The utility model relates to the technical field of double-wall corrugated pipes, in particular to a polyolefin alloy material double-wall corrugated pipe which comprises a double-wall corrugated pipe body, a first connector and a second connector are arranged at the two ends of the double-wall corrugated pipe body respectively, the first connector comprises an inner cylinder arranged at a port of the double-wall corrugated pipe body in a communicated mode, an outer cylinder is arranged on the outer side of the inner cylinder in a sleeved mode, and the outer cylinder is connected with the double-wall corrugated pipe body in a sleeved mode. An inner ring is arranged in an annular space defined by the outer cylinder and the inner cylinder in a sliding mode, a straight cylinder arranged on the inner cylinder in a sliding and sleeving mode is arranged on the inner ring, a conical opening is formed in an end opening of the straight cylinder, the second connector is a cylinder body installed on the end face of the other side of the double-wall corrugated pipe body, and threads are arranged on the outer wall of the cylinder body; when the second connector is connected with the first connector, the second connector is inserted into the outer cylinder and meshed with the inner wall of the outer cylinder in a threaded mode, when the second connector is connected with the first connector, due to the fact that the second connector pushes the conical opening, the inner ring moves inwards to stretch the spring, and the elastic force of the spring is utilized to enable the conical opening to be in contact with the inner wall of the second connector all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of double-wall corrugated pipes, in particular to a double-wall corrugated pipe made of a polyolefin alloy material. Background Art

[0002] Double-wall corrugated pipe is a pipe with an annular outer wall and a smooth inner wall. The outer wall has an annular corrugated structure, which greatly enhances the ring stiffness of the pipe, thereby enhancing the pipe's resistance to soil load. As a result, the toughness of the double-wall corrugated pipe decreases. Therefore, a double-wall corrugated pipe made of a polyolefin alloy material is needed. This alloy material not only has a high bending modulus and a high heat deformation temperature, but also has a high cantilever beam notch impact strength and excellent mechanical properties. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a double-wall corrugated pipe made of a polyolefin alloy material, which is achieved by the following specific technical means: comprising a double-wall corrugated pipe body, wherein two ends of the double-wall corrugated pipe body are respectively provided with a connector 1 and a connector 2, the connector 2 on one group of the double-wall corrugated pipe bodies is connected to the connector 1 on the other group of the double-wall corrugated pipe bodies, the connector 1 includes an inner cylinder connected to the port of the double-wall corrugated pipe body, an outer cylinder is sleeved on the outside of the inner cylinder, an inner ring is slidably provided in the annular space surrounded by the outer cylinder and the inner cylinder, and a sliding sleeve is provided on the inner ring A straight cylinder on the inner cylinder, the port of the straight cylinder is provided with a tapered mouth, the second connector is a cylinder installed on the end face of the other side of the double-wall corrugated pipe body and the outer wall is provided with a thread, when the second connector is connected to the first connector, the second connector is inserted into the outer cylinder and engaged with the thread of the inner wall of the outer cylinder, and at the same time, the inner wall of the second connector is in contact with the outer wall of the tapered mouth, and a spring is connected between the inner wall of the outer cylinder and the inner ring. When the second connector is connected to the first connector, the second connector pushes the tapered mouth, causing the inner ring to move inward and stretch the spring, and the elastic force of the spring is used to ensure that the tapered mouth always remains in contact with the inner wall of the second connector.

[0004] Preferred technical solution 1: The inner wall of the second connector is a chamfered structure adapted to the tapered mouth slope, so that the chamfered inner wall of the second connector can fit in contact with the tapered mouth slope.

[0005] Preferred technical solution two: At the same time, a sealing gasket one is provided on the chamfered inner wall of the second connector to further enhance the sealing performance between the second connector and the tapered port.

[0006] Preferred technical solution three: the double-wall corrugated pipe body is made of polyolefin alloy material.

[0007] Preferred technical solution four: A retaining ring is provided on the inner wall of the front end of the outer cylinder, the second outer wall thread of the connector is engaged with the inner wall thread of the retaining ring, and the spring is provided between the retaining ring and the inner ring.

[0008] The above structure enables this solution to have the following beneficial effects:

[0009] 1. The structural features of connector 1 and connector 2 enable the spring to continuously push the tapered port in, and the sealing ring is tightly fixed to the inner wall of connector 2, so that the sealing between connector 2 and connector 1 is guaranteed;

[0010] 2. Material and product advantages: This alloy not only possesses a high flexural modulus and high heat deformation temperature, but also high cantilever beam notched impact strength, resulting in excellent mechanical properties. Bellows processed from this alloy exhibit excellent ring stiffness and flexibility, excellent impact resistance, and excellent ambient temperature resistance, extending the service life of the bellows. The bellows are also lighter, further reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0013] Figure 2 This is a schematic diagram of the structure of the second connector of this solution;

[0014] Figure 3 This is the cross-section diagram of this scheme;

[0015] Figure 4 This is a partial enlarged view of this plan.

[0016] Among them, 1. Double-wall corrugated pipe body, 2. Connector 1, 201. Inner tube, 202. Outer tube, 203. Retaining ring, 204. Inner ring, 205. Straight tube, 206. Conical mouth, 207. Spring, 3. Connector 2, 4. Sealing gasket 1, 5. Convex ring, 6. Sealing ring 2. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 4The double-wall corrugated pipe made of polyolefin alloy material includes a double-wall corrugated pipe body 1, and a connector 2 and a connector 3 are respectively provided at both ends of the double-wall corrugated pipe body 1. The connector 2 includes an inner cylinder 201 connected to the port of the double-wall corrugated pipe body 1, an outer cylinder 202 is sleeved on the outer side of the inner cylinder 201, and an inner ring 204 is slidably provided in the annular space surrounded by the outer cylinder 202 and the inner cylinder 201. The inner ring 204 is provided with a straight cylinder 205 slidably sleeved on the inner cylinder 201. The port of the straight cylinder 205 is provided with a tapered mouth 206. The connector 23 is a cylindrical structure installed on the end face of the other side of the double-wall corrugated pipe body 1 and the outer wall is provided with a thread. The outer diameter of the small end of the tapered mouth 206 is not larger than the inner diameter of the connector 23. The connector 23 is inserted into the outer cylinder 202 and meshed with the inner wall thread of the outer cylinder 202. At the same time, the inner wall of the connector 23 contacts the outer wall of the tapered mouth 206, and a spring 207 is connected between the inner wall of the outer cylinder 202 and the inner ring 204.

[0019] See also Figure 4 , a double-wall corrugated pipe made of polyolefin alloy material, the inner wall of the connector 2 3 is a chamfered structure adapted to the inclined surface of the tapered mouth 206, and a sealing gasket 4 is provided on the chamfered inner wall of the connector 2 3 .

[0020] See also Figure 4 , a double-wall corrugated pipe made of polyolefin alloy, a convex ring 5 is provided on the connector 203, a baffle ring 203 is provided on the inner wall of the front port of the outer cylinder 202, the convex ring 5 is in contact with the baffle ring 203 and a sealing ring 206 is provided between the convex ring 5 and the baffle ring 203, and the outer wall thread of the connector 203 is engaged with the inner wall thread of the baffle ring 203, and a spring 207 is provided between the baffle ring 203 and the inner ring 204.

[0021] See also Figure 1 , polyolefin alloy material double-wall corrugated pipe, the double-wall corrugated pipe body 1 is made of polyolefin alloy material.

[0022] The specific usage process of the double-wall corrugated pipe made of polyolefin alloy material: when assembling, first insert the connector 2 3 into the tapered mouth 206, and then push and move the connector 2 3 into the outer tube 202 and engage with the thread on the inner wall of the retaining ring 203. At this time, the spring 207 is stretched, and the outer wall of the tapered mouth 206 contacts the inner wall of the connector 2 3 and squeezes the sealing gasket 1 4 until the convex ring 5 contacts the retaining ring 203 to tighten the sealing gasket 2.

[0023] 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 these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Double-wall corrugated pipe made of polyolefin alloy, characterized by: The invention comprises a double-walled corrugated pipe body (1), wherein two ends of the double-walled corrugated pipe body (1) are respectively provided with a connector head 1 (2) and a connector head 2 (3), wherein the connector head 1 (2) comprises an inner cylinder (201) connected to a port of the double-walled corrugated pipe body (1), an outer cylinder (202) is sleeved on the outer side of the inner cylinder (201), an inner ring (204) is slidably provided in the annular space enclosed by the outer cylinder (202) and the inner cylinder (201), and a sliding sleeve is provided on the inner ring (204) and the sliding sleeve is provided on the inner cylinder (201). The straight cylinder (205) is provided with a tapered port (206) at the port of the straight cylinder (205), and the second connector (3) on one group of the double-walled corrugated tube bodies (1) is inserted into the outer cylinder (202) on the other group of the double-walled corrugated tube bodies (1) through the thread provided on the outer wall and is engaged with the thread of the inner wall of the outer cylinder (202), while the inner wall of the second connector (3) contacts the outer wall of the tapered port (206), and a spring (207) is connected between the inner wall of the outer cylinder (202) and the inner ring (204).

2. The polyolefin alloy double-wall corrugated pipe according to claim 1, characterized in that: The inner wall of the second connector (3) is a chamfered structure adapted to the inclined surface of the tapered opening (206), so that the chamfered inner wall of the second connector (3) can fit in contact with the inclined surface of the tapered opening (206).

3. The polyolefin alloy double-wall corrugated pipe according to claim 2, characterized in that: At the same time, a sealing gasket 1 (4) is provided on the chamfered inner wall of the second connector (3).

4. The polyolefin alloy double-wall corrugated pipe according to claim 1, characterized in that: The second connector (3) is provided with a convex ring (5), and the convex ring (5) contacts the front end wall of the outer cylinder (202) when the second connector (3) is connected to the first connector (2).

5. The polyolefin alloy double-wall corrugated pipe according to claim 4, characterized in that: A second sealing ring (6) is provided between the convex ring (5) and the front end wall of the outer cylinder (202).

6. The polyolefin alloy double-wall corrugated pipe according to claim 1, characterized in that: The double-wall corrugated pipe body (1) is made of polyolefin alloy material.

7. The polyolefin alloy double-wall corrugated pipe according to claim 1, characterized in that: The outer diameter of the small end of the tapered opening (206) is no larger than the inner diameter of the second connector (3).

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