Flexible and bendable PVC corrugated pipe

Abstract

The utility model belongs to the technical field of corrugated pipes, and particularly relates to a flexible bendable PVC corrugated pipe which comprises an inner pipe. The corrugated outer pipe is located on the outer side of the inner pipe, outer arcs are arranged in the corrugated outer pipe, an inward-sunken switching part is arranged between every two adjacent outer arcs, and a left intersection and a right intersection are formed between the outer arcs and the switching parts to disperse stress; reinforcing ribs are arranged in the force unloading unit, and the force unloading unit is rotationally installed in a rolling groove formed in the switching part and used for guiding external force to form unloading force. According to the utility model, the acting force can be effectively guided to the outer side of the pipe body, damage caused by rigid contact is prevented, meanwhile, multi-point buffer unloading can be formed, and the resistance of the pipe body to external force is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the corrugated pipe technical field, especially, a kind of flexible bendable PVC corrugated pipe. BACKGROUND

[0002] Flexible bendable PVC corrugated pipe is a kind of pipe material made of polyvinyl chloride (PVC), with unique structure and performance, widely used in construction, municipal, industrial and agricultural fields.

[0003] At present, the existing corrugated pipe structure is fixed, and when subjected to external force, the force towards the inside will produce rigid resistance to cause breakage.

[0004] To solve the above problems, a flexible bendable PVC corrugated pipe is proposed in the present application. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of flexible bendable PVC corrugated pipe, solve the problem proposed in the above background.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a kind of flexible bendable PVC corrugated pipe, including inner tube;

[0008] Corrugated outer tube: located at the outer side of inner tube, internally provided with outer arc, the transition part recessed inward is provided between adjacent outer arcs, and the left and right two intersection places are formed between the outer arc and transition part to disperse stress;

[0009] Force releasing unit: internally provided with reinforcing rib, rotatably installed in the rolling groove opened in the transition part, for guiding external force to form force releasing.

[0010] Further, the inner side of the minimum diameter of the inner arc is provided with a connecting joint connected to the inner tube, as a support point for deformation of the intersection of outer arc and transition part.

[0011] Further, the inner side of the minimum diameter of the inner arc is provided with a connecting joint connected to the inner tube, as a support point for deformation of the intersection of outer arc and transition part.

[0012] Further, the outer side of the reinforcing rib is provided with a limiting protrusion for intercepting acting force to increase contact surface.

[0013] Further, the limiting protrusion is semicircular structure, which becomes a driving element for rotating reinforcing rib after intercepting acting force.

[0014] Further, the outer arc and transition part are used alone, and the intersection is used to produce deformation to resist external force.

[0015] Further, the reinforcing rib is used for clamping the reinforcing rib at the junction of the outer arc and the adapter part after installation.

[0016] The utility model has the following beneficial effects:

[0017] The utility model discloses a special-shaped structure that is composed of the outer arc and the adapter part, can install the reinforcing rib in the inside, and then when bearing external force, reduces stress through the rotating mode, guides it outward, achieves the effect that avoids the transmission of external force to the inside of the inner pipe, and avoids the damage caused by rigid resistance.

[0018] The utility model discloses the increase of the limiting protrusion, can intercept in the first time when external force generates, thereby forming the driving force of the reinforcing rib, makes it rotate, utilizes the limiting protrusion of adjacent reinforcing rib outside to form linkage resistance simultaneously, makes multiple reinforcing ribs rotate simultaneously and form the buffer to external force, thereby protecting the internal structure.

[0019] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0021] Figure 1 It is the whole appearance structure schematic diagram of the utility model;

[0022] Figure 2 It is the internal structure schematic diagram of one end of the bellows of the utility model;

[0023] Figure 3 It is the internal cross section structure schematic diagram of one end of the bellows of the utility model;

[0024] Figure 4 It is the local enlarged structure schematic diagram of part A of the utility model;

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] In the drawings:

[0027] 1, inner pipe;2, corrugated outer pipe;3, force relieving unit;

[0028] 201, inner arc;202, outer arc;203, adapter part;204, rolling groove;205, connecting section;

[0029] 301, reinforcing rib;302, limiting protrusion. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] Please refer to Figures 1-4 The utility model discloses a flexible bendable PVC corrugated pipe, which comprises an inner pipe 1.

[0033] The corrugated outer pipe 2 is located outside the inner pipe 1 and is internally provided with outer arcs 202, the left and right outer arcs 202 form a group, the maximum diameter portions of the adjacent outer arcs 202 are provided with inwardly recessed adapter portions 203, the left and right intersection portions are formed between the outer arcs 202 and the adapter portions 203, when external force is encountered, the two intersection portions respectively resist the external force to achieve the effect of dispersing stress, and when the outer arcs 202 and the adapter portions 203 are used alone, the intersection portions are respectively bent inward, thereby forming linkage to resist external force.

[0034] The force relieving unit 3 is internally provided with reinforcing ribs 301 and is in a circular ring type structure and is rotatably installed in the rolling groove 204 formed in the adapter portion 203, when external force is encountered, the force relieving unit 3 rotates in the circumferential direction, thereby guiding the external force outward to form force relieving.

[0035] The inner arc 201 is further provided inside the corrugated outer pipe 2, the left and right maximum diameter portions of the inner arc 201 are connected to the minimum diameter portions of the adjacent outer arcs 202, which are used to form a base layer to resist and buffer when the outer arcs 202 are deformed, and the initial state is restored through elasticity.

[0036] The inner side of the minimum diameter portion of the inner arc 201 is provided with a connecting joint 205, which is stably connected with the outer wall of the inner pipe 1 and is a support point for the deformation of the left and right portions of the inner arc 201 and the intersection portions of the outer arcs 202 and the adapter portions 203.

[0037] The outer side of the reinforcing rib 301 is provided with a limiting protrusion 302 for intercepting an action force to increase a contact surface, the limiting protrusion 302 is a semicircular structure, and can intercept external forces from different directions, after intercepting the action force, the external force forms a thrust force on the limiting protrusion 302, so that the limiting protrusion 302 becomes a driving part for rotating the reinforcing rib 301, and the adjacent reinforcing rib 301 covered by the external force can also rotate at the same time.

[0038] The outer arc 202 and the adapter 203 meet at a position for clamping the reinforcing rib 301 after installation, so as to prevent self-rotation of the reinforcing rib 301 and facilitate laying and carrying.

[0039] It can be understood that the utility model can effectively guide the action force to the outer side of the pipe body, prevent damage caused by rigid contact, and also form a multi-point buffer force to enhance the resistance of the pipe body to external force.

[0040] A specific application of the operation process of the embodiment is that: first, the reinforcing rib 301 is sleeved in the inner part of the rolling groove 204, so that it can rotate in the inner part, and when an external force is encountered, the limiting protrusion 302 forms a first layer of interception, and the external force acting on the limiting protrusion 302 can form a thrust force, so that the reinforcing rib 301 rotates in the inner part of the rolling groove 204, which can guide the action force to the outside to prevent direct action on the inner pipe 1, and can also form a buffer and a force unloading through the linkage rotation mode of the plurality of reinforcing ribs 301 to quickly resist and eliminate the external force, so as to prevent rigid contact of the remaining structure and avoid damage.

[0041] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A flexible bendable PVC bellows characterized by: It includes inner tube (1); The corrugated outer tube (2) is located outside the inner tube (1), and is internally provided with outer arcs (202). Adjacent outer arcs (202) are provided with inwardly recessed transition portions (203), and the outer arcs (202) and the transition portions (203) form two left and right intersection places to disperse stress; The force relieving unit (3) is internally provided with a reinforcing rib (301), is rotatably installed in a rolling groove (204) formed in the transition portion (203), and is used for guiding external force to form force relieving.

2. A flexible bendable PVC bellows according to claim 1, characterized in that: The corrugated outer tube (2) is internally provided with an inner arc (201) connected to the smallest diameter of the adjacent outer arc (202).

3. A flexible bendable PVC bellows according to claim 2, characterized in that: The inner side of the smallest diameter of the inner arc (201) is provided with a connecting joint (205) connected to the inner tube (1), and is a support point for deformation of the intersection place of the outer arc (202) and the transition portion (203).

4. A flexible bendable PVC bellows according to claim 1, characterized in that: The outer side of the reinforcing rib (301) is provided with a limiting protrusion (302) for intercepting the acting force to increase the contact surface.

5. A flexible bendable PVC bellows according to claim 4, characterized in that: The limiting protrusion (302) is a semicircular structure, which becomes a driving member for rotating the reinforcing rib (301) after intercepting the acting force.

6. A flexible bendable PVC bellows according to claim 1, characterized in that: When the outer arc (202) and the transition portion (203) are used alone, the intersection place is used to produce deformation to resist external force.

7. A flexible bendable PVC bellows as claimed in claim 1, wherein: After the reinforcing rib (301) is installed, the intersection place of the outer arc (202) and the transition portion (203) is used to clamp the reinforcing rib (301).

Images