Corrugated pipe with flat inside and convex outside

Abstract

The utility model relates to the field of hoses, in particular to a corrugated pipe with flat inside and convex outside, which comprises an inner pipe, a connecting layer, ribs and a transparent film, the connecting layer is arranged on the outer wall of the inner pipe, the ribs are spirally wound along the length direction of the inner pipe, and the ribs are connected with the connecting layer; the transparent film is attached to the ribs and the connecting layer in a vacuum film covering mode. By adopting the matching form of the inner pipe, the connecting layer and the ribs, the design that the inner wall of the corrugated pipe is flat and the outer wall keeps lines can be realized, so that the condition that flowing water is hindered due to the fact that the inner wall of a traditional corrugated pipe is provided with protrusions can be avoided; and through vacuum coating of the transparent film, the ribs are fixed, and the protection effect on the outer side of the pipe body is achieved.

Description

Technical Field

[0001] The utility model relates to the field of hoses, in particular to a corrugated hose with a flat interior and a convex exterior. Background Art

[0002] Bellows are a common hose used in the bathroom industry, featuring multiple protruding ribs on their walls. Due to traditional production processes, these ribs on both the outer and inner walls of bellows hinder water flow and easily accumulate dirt, making them difficult to use. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a flat inner and convex outer corrugated pipe which can avoid obstruction to water flow.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a corrugated tube with a flat inside and a convex outside, comprising an inner tube, a connecting layer, ribs and a transparent film, the outer wall of the inner tube is provided with a connecting layer, the ribs are spirally wound along the length direction of the inner tube, and the ribs are connected to the connecting layer; the transparent film is attached to the ribs and the connecting layer by vacuum coating.

[0005] Furthermore, the connecting layer is the heated portion of the outer wall of the inner tube.

[0006] Furthermore, the ribs are bonded to the connecting layer.

[0007] Furthermore, a first rough layer is provided at a portion where the ribs are connected to the connection layer.

[0008] Furthermore, a second rough layer is provided on the portion of the rib protruding from the connection layer.

[0009] Furthermore, it also includes a woven bag, and the transparent film is covered with a woven bag.

[0010] Furthermore, the ribs and the connecting layer are made of the same material.

[0011] The beneficial effects of the present invention are as follows: by adopting the coordinated form of the inner tube, the connecting layer and the ribs, a design in which the inner wall of the corrugated tube is smooth while the outer wall retains the texture can be achieved, thereby avoiding the situation in which the traditional corrugated tube has obstructions to the flow of water due to the protrusions on the inner wall; by vacuum coating with a transparent film, the ribs are fixed and the outer side of the tube body is protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of an inner flat and outer convex corrugated pipe according to a specific embodiment of the present invention;

[0013] Description of labels:

[0014] 1. Inner tube; 2. Ribs; 3. Transparent membrane. DETAILED DESCRIPTION

[0015] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0016] Please refer to Figure 1 A corrugated tube with a flat inner surface and a convex outer surface comprises an inner tube 1, a connecting layer, ribs 2 and a transparent film 3. The outer wall of the inner tube 1 is provided with a connecting layer, the ribs 2 are spirally wound along the length direction of the inner tube 1, and the ribs 2 are connected to the connecting layer; the transparent film 3 is attached to the ribs 2 and the connecting layer by vacuum coating.

[0017] From the above description, it can be seen that the beneficial effects of the present invention are: by adopting the matching form of the inner tube 1, the connecting layer and the ribs 2, the inner wall of the corrugated tube can be flat while the outer wall maintains the texture, so as to avoid the situation where the traditional corrugated tube has obstructions to the flow of water due to the protrusions on the inner wall; through the vacuum coating of the transparent film 3, the ribs 2 are fixed and play a protective role on the outside of the tube body.

[0018] Furthermore, the connecting layer is the heated portion of the outer wall of the inner tube 1 .

[0019] From the above description, it can be seen that the inner tube 1 will be heated during the extrusion molding process, and its outer wall will maintain residual heat or when the inner tube 1 is subsequently heated for the second time, its outer wall can maintain adhesion at a certain temperature. When the rib 2 cooperates with it, it can improve the adhesion and positioning effect when it is connected to the rib 2.

[0020] Furthermore, the ribs 2 are bonded to the connecting layer.

[0021] It can be seen from the above description that the ribs 2 are connected to the connection layer by bonding.

[0022] Furthermore, a first rough layer is provided at a portion where the ribs 2 are connected to the connection layer.

[0023] It can be seen from the above description that by designing the first rough layer at the portion where the rib 2 and the connection layer are connected, the matching area between the rib 2 and the connection layer is increased, thereby improving the strength of the connection between the two.

[0024] Furthermore, a second rough layer is provided on the portion of the rib 2 protruding from the connection layer.

[0025] From the above description, it can be seen that the design of the second rough layer on the rib 2 can increase the contact area with the transparent film 3. After the transparent film 3 is attached by vacuum lamination, it can be reliably connected to the rib 2 and limit the rib 2.

[0026] Furthermore, it also includes a woven bag, and the transparent film 3 is covered with a woven bag.

[0027] It can be seen from the above description that the provision of the woven bag plays a protective role during use.

[0028] Furthermore, the ribs 2 are made of the same material as the connecting layer.

[0029] From the above description, it can be seen that by using the same material design for the ribs 2 and the connecting layer, after the outer wall of the inner tube 1 is heated, the surface layer thereof presents a certain molten state, which can be more adaptably connected with the ribs 2, thereby improving the connection reliability between the two.

[0030] Reference Figure 1 , the first embodiment of the present utility model is:

[0031] like Figure 1 As shown, the inner flat and outer convex corrugated tube of this embodiment includes an inner tube 1, a connecting layer, ribs 2, a transparent film 3 and a woven bag. The outer wall of the inner tube 1 is provided with a connecting layer, the ribs 2 are spirally wound along the length direction of the inner tube 1, and the ribs 2 are connected to the connecting layer; the transparent film 3 is attached to the ribs 2 and the connecting layer in the form of vacuum coating; the transparent film 3 is covered with a woven bag.

[0032] The connecting layer can be a layered structure subsequently sleeved on the outer wall of the inner tube 1 or a heated portion of the outer wall of the inner tube 1. In this embodiment, the connecting layer is a heated portion of the outer wall of the inner tube 1.

[0033] The ribs 2 are bonded to the connecting layer. The ribs 2 and the connecting layer are made of the same material. The portion where the ribs 2 are connected to the connecting layer is provided with a first rough layer. A limiting groove is provided on the connecting layer corresponding to the ribs 2; both sides of the ribs 2 and the side opposite the connecting layer are connected to the inner wall of the limiting groove. The limiting groove on the connecting layer guides and limits the installation of the ribs 2, ensuring that the ribs 2 are neatly wound. In addition, the connection between the ribs 2 and the connecting layer is ensured by the connection of the limiting grooves on both sides and the side opposite the connecting layer.

[0034] Optionally, the lower portion of the rib 2 engages with the retaining groove; the cross-section of the lower portion of the rib 2 perpendicular to the length of the rib 2 is an isosceles trapezoid. The isosceles trapezoidal cross-section design forms guiding slopes on both sides of the lower portion of the rib 2, allowing the rib 2 to be more smoothly pressed into the retaining groove for retaining engagement during winding.

[0035] The second rough layer is provided on the portion of the rib 2 protruding from the connection layer. Specifically, the second rough layer is provided on both sides of the rib 2 and on the side opposite to the connection layer.

[0036] To sum up, the inner-flat and outer-convex corrugated pipe provided by the present invention can achieve a design in which the inner wall of the corrugated pipe is flat while the outer wall maintains the texture by adopting the combination of the inner pipe, the connecting layer and the ribs. This can avoid the situation in which the traditional corrugated pipe has obstruction to the flow of water due to the bulges on the inner wall; through the vacuum coating of the transparent film, the ribs are fixed and the outer side of the pipe body is protected.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A corrugated pipe with a flat inner side and a convex outer side, characterized in that: It includes an inner tube, a connecting layer, ribs and a transparent film. The outer wall of the inner tube is provided with a connecting layer. The ribs are spirally wound along the length direction of the inner tube and are connected to the connecting layer. The transparent film is attached to the ribs and the connecting layer by vacuum coating.

2. The inner flat and outer convex corrugated pipe according to claim 1, characterized in that: The connecting layer is the heated portion of the outer wall of the inner tube.

3. The inner flat and outer convex corrugated pipe according to claim 1, characterized in that: The ribs are bonded to the connecting layer.

4. The inner flat and outer convex corrugated pipe according to claim 1, characterized in that: The portion where the ribs are connected to the connection layer is provided with a first rough layer.

5. The inner flat and outer convex corrugated pipe according to claim 1, characterized in that: A second rough layer is provided on the portion of the rib protruding from the connecting layer.

6. The inner flat and outer convex corrugated pipe according to claim 1, characterized in that: The transparent film is also provided with a woven bag.

7. The inner flat and outer convex corrugated pipe according to claim 2, characterized in that: The ribs are made of the same material as the connecting layer.

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