M-type wound pipe

Abstract

The utility model discloses a kind of M type winding pipes, including material pipe, material pipe includes bottom tape part, first wave part and second wave part, first wave part cross section is the U shape of opening towards bottom tape part, first wave part left and right sides are fixedly connected in bottom tape part outside, first wave part right side is provided with the adhesive surface flush with bottom tape part right side, second wave part includes arc plate and connecting plate, arc plate right side is fixedly connected in first wave part left side middle part, arc plate left side is fixedly connected with bottom tape part left side by connecting plate, arc plate is bent to bottom tape part, material pipe spiral winding, in the material pipe of adjacent two turns, connecting plate left side is adhered on the adhesive surface of first wave part by glue.The utility model proposes a kind of winding pipe, and the anti-opening glue performance is better, and the ring flexibility is better.

Description

Technical Field

[0001] This utility model relates to the field of pipe technology, and in particular to an M-type spiral wound pipe. Background Technology

[0002] Spiral wound tubing is a commonly used type of tubing. Existing spiral wound tubing, as shown in patent application number CN202111096927.6, is made by winding a material strip. The material strip includes a base strip, an integrally formed covering layer on the outside of the base strip, and a corrugated tube embedded in the covering layer. During the preparation of the spiral wound tubing, the material strip is spirally wound, and adjacent turns of material strip are bonded and fixed with adhesive. Although the spiral wound tubing improves the ring stiffness through the embedded corrugated tube, the adhesive contact area between adjacent turns of material strip is small. In actual use, it is easy for the adhesive to come unglued and leak. In addition, its deformation ability is weak, that is, its ring flexibility is poor. Utility Model Content

[0003] In order to solve the above-mentioned defects of existing spiral wound tubes, this utility model proposes a spiral wound tube with better anti-delamination performance and better ring flexibility.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An M-shaped spiral wound tube includes a tube comprising a base section, a first corrugated section, and a second corrugated section. The first corrugated section has a U-shaped cross-section with its opening facing the base section. Both sides of the first corrugated section are fixedly connected to the outer side of the base section. The right side of the first corrugated section has an adhesive surface flush with the right side of the base section. The second corrugated section includes an arc-shaped plate and a connecting plate. The right side of the arc-shaped plate is fixedly connected to the middle left side of the first corrugated section. The left side of the arc-shaped plate is fixedly connected to the left side of the base section through the connecting plate. The arc-shaped plate bends towards the base section. The tube is spirally wound. In two adjacent turns of the tube, the left side of the connecting plate is glued to the adhesive surface of the first corrugated section.

[0005] With the above settings, firstly, the bonding area of ​​the adjacent two ends of the tube is larger, making it less likely to come unglued, and the sealing and reliability are better. Secondly, the addition of the arc plate allows the wound tube to rebound better, improving the ring flexibility.

[0006] Furthermore, the left end of the first waveform section near the bottom band section is inclined toward the connecting plate, and the right end of the first waveform section near the bottom band section is inclined away from the connecting plate.

[0007] The above settings improve the structural stability of the first waveform section.

[0008] Furthermore, the bonding surface includes a straight section and a beveled section. The upper end of the straight section is close to the upper side of the curved plate, the beveled section is parallel to the inner wall of the right side of the first wave section, the upper end of the beveled section is connected to the lower end of the straight section, the lower end is flush with the right side of the bottom strip section, and the inner wall of the connecting plate is flush with the outer wall of the right side of the first wave section.

[0009] Furthermore, the height of the first waveform portion is h, and the width of the first waveform portion is w1, 0.8. <h / w1<1。

[0010] With the above settings, the force on the first waveform section is more reasonable.

[0011] Furthermore, the top of the first wave portion is concave.

[0012] The above settings enhance the pressing feel and sensation of the first wave section.

[0013] Furthermore, the two ends of the arc-shaped plate are close to the middle of the first wave section.

[0014] Furthermore, the width of the curved plate is w2, 1 / 4 <w2 / w1<1 / 2。 Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the winding tube used in an embodiment.

[0016] Figure 2 This is a side view of the winding tube as shown in the embodiment.

[0017] Figure 3 This is a cross-sectional view of the wound tube as an example.

[0018] Figure 4 for Figure 3 Enlarged view of point A. Detailed Implementation

[0019] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0020] like Figures 1 to 4 An M-shaped spiral wound tube includes a tube comprising a base section 3, a first corrugated section 4, and a second corrugated section 5. The first corrugated section 4 has a U-shaped cross-section with its opening facing the base section 3. Both sides of the first corrugated section 4 are fixedly connected to the outside of the base section 3. The right side of the first corrugated section 4 is provided with an adhesive surface 6 flush with the right side of the base section 3. The second corrugated section 5 includes an arc plate 51 and a connecting plate 52. The right side of the arc plate 51 is fixedly connected to the middle of the left side of the first corrugated section 4. The left side of the arc plate 51 is fixedly connected to the left side of the base section 3 through the connecting plate 52. The arc plate 51 is bent toward the base section 3. The tube is spirally wound. In two adjacent turns of the tube, the left side of the connecting plate 52 is bonded to the adhesive surface 6 of the first corrugated section 4 with glue 7.

[0021] With the above settings, firstly, the bonding area of ​​the adjacent two ends of the tube is larger, making it less likely to come unglued, and the sealing and reliability are better. Secondly, the addition of the arc plate 51 allows the winding tube to rebound better, improving the ring flexibility.

[0022] The material tube in this application is a one-piece molded structure. For the sake of convenience in explaining the technical solution, it is referred to as... Figure 3 and Figure 4 The directions indicated are left and right. The tube is a one-piece molded long tube structure with two cavities. One cavity is formed by a bottom strip and a first corrugated section 4, and the other cavity is formed by a bottom strip, a second corrugated section 5, and the first corrugated section 4. The height of the first corrugated section 4 is greater than the height of the second corrugated section 5. When preparing the wound tube by spiral winding from left to right, the connecting plate 52 of the next turn of the tube is bonded to the bonding surface 6 of the previous turn of the tube using epoxy resin or other adhesives with high Young's modulus. The inner wall of the resulting wound tube is a smooth cylindrical surface formed by the bottom strip 3. Compared with the wound tubes in the prior art, the area bonded by the adhesive 7 is larger, making it less prone to delamination and improving the reliability and safety of the wound tube. The outer surface of the wound tube is an M-shaped corrugated surface formed by alternating first corrugated sections 4 and second corrugated sections 5, which increases the surface area of ​​the wound tube. In actual engineering... In this design, after the spiral wound tube is placed underground, the contact area between the outer surface of the spiral wound tube and the soil is larger, which helps to prevent soil erosion. The wall thickness of the first wave section 4 is greater than the thickness of the arc plate 51 of the second wave section 5. The first wave section 4 mainly plays the role of improving the ring stiffness of the spiral wound tube, improving the compressive strength of the spiral wound tube, and making the spiral wound tube less prone to cracking and deformation. The arc plate 51 is connected between two adjacent first wave sections 4. On the one hand, it supports the side wall of the first wave section 4, making the side wall of the first wave section 4 less prone to bending. On the other hand, when the first wave section 4 deforms, it causes the arc plate 51 to deform. The arc plate 51 bends inward and deforms elastically. When bending, the external soil will not prevent its deformation. The arc plate 51 can rebound better, helping the first wave section 4 to rebound, thereby improving the ring flexibility of the spiral wound tube. The arc plate 51 in this application mainly plays the role of rebounding to help the spiral wound tube restore its shape.

[0023] In one implementation, the left end of the first waveform section 4 near the bottom band section 3 is inclined toward the connecting plate 52, and the right end of the first waveform section 4 near the bottom band section 3 is inclined away from the connecting plate 52.

[0024] The above settings improve the structural stability of the first waveform section 4.

[0025] like Figure 4 The first wave section 4 has a cross-section similar to an isosceles trapezoid, with the bottom ends on both sides flaring outwards. When external pressure is applied to the first wave section 4, the first wave section 4 is not easy to tilt to the left or right.

[0026] As one implementation, the bonding surface 6 includes a straight section 61 and an inclined section 62. The upper end of the straight section 61 is close to the upper side of the arc plate 51. The inclined section 62 is parallel to the inner wall of the right side of the first wave section 4. The upper end of the inclined section 62 is connected to the lower end of the straight section 61. The lower end is flush with the right side of the bottom strip section 3. The inner wall of the connecting plate 52 is flush with the outer wall of the right side of the first wave section 4.

[0027] As Figure 4 , the inclined surface section 62 is arranged on the right side of the first wave-shaped portion 4 to ensure that the wall thickness at the lower right end of the first wave-shaped portion 4 will not be too thin, the straight surface section 61 is used for the wall thickness transition between the upper and lower ends on the right side of the first wave-shaped portion 4, the bonding surface 6 forms a notch at the lower right end of the first wave-shaped portion 4, the shape of the left side of the connecting plate 52 is adapted to the straight surface section 61 and the inclined surface section 62, when the left side of the connecting plate 52 is bonded to the bonding surface 6 by the adhesive 7, the left side of the connecting plate 52 just makes up for the notch at the lower right end of the first wave-shaped portion 4, so that the right side of the first wave-shaped portion 4 and the connecting plate 52 form a support with the same strength as the left side of the first wave-shaped portion 4.

[0028] As an implementation, the height of the first wave-shaped portion 4 is h, the width of the first wave-shaped portion 4 is w1, and 0.8<h / w1<1.

[0029] Through the above arrangement, the stress on the first wave-shaped portion 4 is more reasonable.

[0030] As an implementation, the top of the first wave-shaped portion 4 is recessed inward.

[0031] Through the above arrangement, the pressing hand feel and experience of the first wave-shaped portion 4 are improved.

[0032] When the on-site construction quality inspection personnel press the top of the first wave-shaped portion 4 to feel the ring stiffness of the wound pipe, due to the inward recess of the top of the first wave-shaped portion 4, the first wave-shaped portion 4 is not easy to be pressed down and deformed, which gives people a perception of higher strength and hardness, and the product has a higher sense of safety.

[0033] As an implementation, both ends of the arc-shaped plate 51 are close to the middle part of the first wave-shaped portion 4.

[0034] As an implementation, the width of the arc-shaped plate 51 is w2, and 1 / 4<w2 / w1<1 / 2.

[0035] The present application limits the width of the arc-shaped plate 51. The width w2 of the arc-shaped plate 51 should not be too small. If it is too small, the distance between two adjacent first wave-shaped portions 4 will be too small. After the wound pipe is buried underground, the soil is not easy to embed between the two adjacent first wave-shaped portions 4, resulting in gaps around the wound pipe, which easily causes soil erosion and ground subsidence in the later stage; in addition, if the width of the arc-shaped plate 51 is too large, the ring stiffness of the wound pipe is likely to be insufficient. Therefore, in the present application, the ratio of the width of the arc-shaped plate 51 to the width of the first wave-shaped portion 4 is 1 / 4<w2 / w1<1 / 2, which takes into account both the installation performance and the ring stiffness.

[0036] It should be understood that for those of ordinary skill in the art, improvements or variations can be made according to the above description, and all such improvements and variations shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. An M-type spiral wound tube, characterized in that, The device includes a feed tube comprising a base section, a first corrugated section, and a second corrugated section. The first corrugated section has a U-shaped cross-section with its opening facing the base section. Both sides of the first corrugated section are fixedly connected to the outer side of the base section. The right side of the first corrugated section has an adhesive surface flush with the right side of the base section. The second corrugated section includes an arc-shaped plate and a connecting plate. The right side of the arc-shaped plate is fixedly connected to the middle left side of the first corrugated section. The left side of the arc-shaped plate is fixedly connected to the left side of the base section via the connecting plate. The arc-shaped plate is bent toward the base section. The feed tube is spirally wound. In two adjacent turns of the feed tube, the left side of the connecting plate is glued to the adhesive surface of the first corrugated section.

2. The M-type spiral wound tube according to claim 1, characterized in that, The left end of the first waveform section near the bottom band is inclined toward the connecting plate, and the right end of the first waveform section near the bottom band is inclined away from the connecting plate.

3. The M-type spiral wound tube according to claim 2, characterized in that, The bonding surface includes a straight section and a sloping section. The upper end of the straight section is close to the upper side of the arc plate. The sloping section is parallel to the inner wall of the right side of the first wave section. The upper end of the sloping section is connected to the lower end of the straight section. The lower end is flush with the right side of the bottom strip. The inner wall of the connecting plate is flush with the outer wall of the right side of the first wave section.

4. The M-type spiral wound tube according to claim 1, characterized in that, The height of the first waveform portion is h, and the width of the first waveform portion is w1, 0.

8. <h / w1<1。 5. The M-type spiral wound tube according to claim 1, characterized in that, The top of the first waveform portion is concave.

6. The M-type spiral wound tube according to claim 1, characterized in that, The two ends of the arc-shaped plate are close to the middle of the first waveform section.

7. The M-type spiral wound tube according to claim 1, characterized in that, The width of the arc-shaped plate is w2, 1 / 4 <w2 / w1<1 / 2。

Images