CN210050408U - Corrugated pipe with supporting reinforcing rib structure - Google Patents

Abstract

The utility model relates to a corrugated pipe with a supporting reinforcing rib structure. The corrugated pipe with a supporting reinforcing rib structure comprises a corrugated pipe main body, wherein the corrugated pipe main body comprises an inner inner pipe and an outer outer corrugated pipe, and the inner pipe is in the shape of a corrugated pipe. Straight cylinder type, the outer corrugated pipe has concave-convex annular corrugations, a first reinforcing rib is arranged in the wave valley of the outer corrugated pipe, a second reinforcing rib is arranged between the wave crests of the outer corrugated pipe, and the first reinforcing rib and the second reinforcing rib are arranged between the first reinforcing rib and the second reinforcing rib. There is a third reinforcing rib in between, the inside of the first reinforcing rib is connected with the outer corrugated pipe, the middle part of the outer end of the first reinforcing rib is connected with the inner end of the third reinforcing rib, and the outer end of the third reinforcing rib is connected with the second reinforcing rib The inner middle part of the rib; the utility model disperses the stress through the joint of the three reinforcing ribs, improves the compressive strength of the corrugated pipe, and is worthy of vigorous promotion.

Description

A corrugated pipe with a supporting reinforcing rib structure

technical field

The utility model belongs to the technical field of corrugated pipes, in particular to a corrugated pipe with a supporting reinforcing rib structure.

Background technique

High-density polyethylene (HDPE) double-wall corrugated pipe is referred to as PE corrugated pipe. HDPE double-wall corrugated pipe is a new type of pipe with annular structure outer wall and smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. It is very mature in production process and use technology. Due to its excellent performance and relatively economical cost, it has been widely used at home and abroad; double-wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene, with light weight, high pressure resistance, good toughness, and fast construction. Compared with other structures, the cost is greatly reduced. And because the connection is convenient and reliable, it is widely used at home and abroad.

Large-diameter double-wall corrugated pipes are widely used in drainage and sewage projects. Due to the large diameter, it is necessary to add reinforcing ribs to improve their compressive strength.

Utility model content

The purpose of the present invention is to provide a corrugated pipe with a support reinforcing rib structure with high compressive strength in order to solve the above problems.

The utility model realizes the above-mentioned purpose through the following technical solutions:

A corrugated pipe with a support reinforcing rib structure, comprising a corrugated pipe main body, the corrugated pipe main body includes an inner inner pipe and an outer outer corrugated pipe, the inner pipe is straight cylindrical, the outer corrugated pipe has concave-convex annular corrugations, and the outer corrugated pipe has concave-convex annular corrugations. A first reinforcing rib is arranged in the wave valley of the corrugated pipe, a second reinforcing rib is arranged between the wave crests of the outer corrugated pipe, and a third reinforcing rib is arranged between the first reinforcing rib and the second reinforcing rib. It is connected with the outer corrugated pipe as a whole, the middle part of the outer end of the first reinforcing rib is connected to the inner end of the third reinforcing rib, and the outer end of the third reinforcing rib is connected to the inner middle part of the second reinforcing rib; The cross section of the first reinforcing rib and the third reinforcing rib are annular, the longitudinal section of the first reinforcing rib is oval, the vertical cross-section of the second reinforcing rib is vertical, and the longitudinal section of the third reinforcing rib is arched.

As a further optimized solution of the present invention, the first reinforcing rib is provided with an annular cavity.

As a further optimized solution of the present invention, one end of the bellows body is provided with an interface section, and the other end is provided with a flared section, and the interface section of one bellows body is inserted into the flared section of the other way to realize the connection between the two bellows main bodies.

As a further optimized solution of the present invention, a sealing sleeve is provided at the joint of the bellows main body, the sealing sleeve is sleeved on the two bellows main bodies, and an annular tube is arranged on the inner circumference of the sealing sleeve. Embedded between the two wave crests of the outer bellows, the inner end of the annular tube is in contact with the second reinforcing rib of the outer bellows; the sleeve of the sealing sleeve is used to connect and seal, and the annular tube realizes two-point sealing with the outer bellows , and a point seal between the second reinforcing rib, which plays a relatively tight connection and sealing role.

As a further optimized solution of the present invention, the sealing sleeve is divided into two parts arranged symmetrically up and down, which is convenient for assembly.

The beneficial effects of the present utility model are:

1) The utility model designs a reinforcing rib at the trough to improve the strength of the trough, resist the deformation of the bellows, and improve the compressive strength;

2) The utility model improves the compressive strength of the bellows by dispersing the stress through the joint of the three reinforcing ribs.

Description of drawings

Fig. 1 is the structural representation of the present utility model in the first embodiment;

Fig. 2 is the enlarged view of A place of Fig. 1;

Fig. 3 is the structural representation of the inner reinforcing rib of the present utility model in the second embodiment;

Fig. 4 is the structural representation of the present utility model in the third embodiment;

5 is a schematic diagram of the connection structure of the main body of the corrugated pipe of the present invention in the third embodiment.

In the picture: 1 inner tube, 2 outer corrugated tube, 2-1 wave valley, 2-2 wave crest, 3 first reinforcement rib, 4 second reinforcement rib, 5 third reinforcement rib, 6 inner reinforcement rib, 7 interface section, 8 Flare section, 9 sealing sleeve, 10 annular tube.

Detailed ways

The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and should not be construed as limiting the protection scope of the application. Those skilled in the art can The above application content makes some non-essential improvements and adjustments to this application.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" , "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating Or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be construed as a limitation of the present invention; in the description of the present invention, unless otherwise stated, "a plurality", "Several" means two or more.

Example 1

As shown in Fig. 1-2, a corrugated pipe with a supporting reinforcing rib structure includes a corrugated pipe main body, the corrugated pipe main body includes an inner inner pipe 1 and an outer outer corrugated pipe 2, and the inner pipe 1 is straight. The outer corrugated pipe 2 has concave-convex annular corrugations, a first reinforcing rib 3 is arranged in the wave valley 2-1 of the outer corrugated pipe 2, a second reinforcing rib 4 is arranged between the wave crests 2-2 of the outer corrugated pipe 2, and the first reinforcing rib is provided. 3 and the second reinforcing rib 4 is provided with a third reinforcing rib 5, the inside of the first reinforcing rib 3 is connected with the outer corrugated tube 2 as a whole, and the middle part of the outer end of the first reinforcing rib 3 is connected to the inner part of the third reinforcing rib 5. end, the outer end of the third reinforcing rib 5 is connected to the inner middle of the second reinforcing rib 4;

The cross-sections of the first reinforcing rib 3, the second reinforcing rib 4 and the third reinforcing rib 5 are all annular, the longitudinal section of the first reinforcing rib 3 is oval, the longitudinal section of the second reinforcing rib 4 is vertical bar-shaped, and the The longitudinal section of the three reinforcing ribs 5 is arched;

The first reinforcing rib 3 plays a part to enhance the strength of the trough 2-1 of the outer corrugated pipe 2, and also mainly plays a combined role with the second reinforcing rib 4. The second reinforcing rib 4 has an arched structure. When the bellows 2 is subjected to external pressure, it will inevitably cause a tendency of concave deformation at the trough 2-1, and the third reinforcing rib 5 distributes the force to the arched second reinforcing rib 4, thereby dispersing the radial stress as The circumferential stress and part of the stress will be transmitted to the pipe wall between the wave crest 2-2 and the wave trough 2-1 through the second reinforcing rib 4, thereby enhancing the compressive strength of the bellows in a way of dispersing the stress. In addition, the reinforcing ribs will not affect the bending and expansion of the bellows.

It should be noted that, since the main body of the bellows is a double-walled bellows, its ability to resist internal pressure is relatively strong, and the present invention does not consider the situation of being subjected to internal pressure.

Further, an annular cavity is provided in the first reinforcing rib 3, which can reduce the amount of material.

Embodiment 2

As shown in FIG. 3 , the difference from the first embodiment is that an inner reinforcing rib 6 is provided at the wave crest 2 - 2 of the outer corrugated pipe 2 , and the outer end of the inner reinforcing rib 6 is connected to the inside of the wave crest 2 - 2 of the outer corrugated pipe 2 . In the middle, the inner end of the inner reinforcing rib 6 is connected to the inner tube 1 . It can enhance the compressive ability at the crest 2-2 and avoid the local deformation under pressure at the crest 2-2.

Embodiment 3

As shown in Figures 4-5, the difference from the first embodiment is that one end of the bellows body is provided with an interface section 7, and the other end is provided with a flared section 8, and the interface section 7 of one bellows body is inserted into the other bellows body The flaring section 8, the joint of the two bellows main bodies is provided with a sealing sleeve 9, the sealing sleeve 9 is sleeved on the two bellows main bodies, the inner circumference of the sealing sleeve 9 is provided with an annular tube 10, the annular The tube 10 is embedded between the two wave crests 2-2 of the outer corrugated pipe 2, and the inner end of the annular pipe 10 is in contact with the second reinforcing rib 4 of the outer corrugated pipe 2; The ring-shaped pipe 10 is embedded in the main body of the bellows, and the outer bellows is connected to the outer bellows by means of interference fit. The two-point seal of 2 and the one-point seal between the second reinforcing rib 4 play a relatively tight connection and sealing role.

It should be noted that, in order to facilitate the assembly of the sealing sleeve 9, it should be divided into two parts arranged symmetrically up and down, and the two parts of the sealing sleeve 9 are connected by welding or the like during assembly.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention.

Claims (5)

1. A corrugated pipe with a supporting reinforcing rib structure, comprising a corrugated pipe main body, the corrugated pipe main body includes an inner inner pipe and an outer outer corrugated pipe, the inner pipe is a straight cylinder, and the outer corrugated pipe has concave-convex annular corrugations, which It is characterized in that: a first reinforcing rib is arranged in the wave valley of the outer corrugated pipe, a second reinforcing rib is arranged between the wave crests of the outer corrugated pipe, and a third reinforcing rib is arranged between the first reinforcing rib and the second reinforcing rib, The inside of the first reinforcing rib is connected with the outer corrugated pipe, the middle of the outer end of the first reinforcing rib is connected to the inner end of the third reinforcing rib, and the outer end of the third reinforcing rib is connected to the inner middle of the second reinforcing rib; The cross-sections of the rib, the second reinforcing rib and the third reinforcing rib are all annular, the longitudinal cross-section of the first reinforcing rib is oval, the longitudinal cross-section of the second reinforcing rib is vertical bar-shaped, and the longitudinal cross-section of the third reinforcing rib is arched shape. 2 . The corrugated tube with a supporting reinforcing rib structure according to claim 1 , wherein the first reinforcing rib is provided with an annular cavity. 3 . 3. A corrugated pipe with a supporting reinforcing rib structure according to claim 1, characterized in that: one end of the corrugated pipe body is provided with an interface section, the other end is provided with a flared section, and an interface of the corrugated pipe main body is provided The segment is inserted into the flared segment of the other bellows body. 4 . The bellows with a supporting reinforcing rib structure according to claim 1 , wherein a sealing sleeve is provided at the joint of the bellows main body, and the sealing sleeve is sleeved on the two bellows main bodies. 5 . The inner circumference of the sealing sleeve is provided with an annular tube, the annular tube is embedded between the two wave crests of the outer bellows, and the inner end of the annular tube is in contact with the second reinforcing rib of the outer bellows. 5 . The corrugated pipe with a supporting reinforcing rib structure according to claim 4 , wherein the sealing sleeve is divided into two parts symmetrically arranged up and down. 6 .

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