Foldable thermal PVC expansion pipe

Abstract

The utility model relates to the technical field of thermal PVC expansion pipes, in particular to a foldable thermal PVC expansion pipe which comprises a flange plate and a cylindrical pipe body, one side of the flange plate is fixedly connected with the cylindrical pipe body, one side of the cylindrical pipe body is fixedly connected with a first movable assembly, and the outer side of the first movable assembly is fixedly connected with a silica gel outer ring. The inner side of the silica gel outer ring is fixedly connected with a second movable assembly, the outer side of the second movable assembly is fixedly connected with a first connection sealing assembly, the outer side of the first movable assembly is fixedly connected with a second connection sealing assembly, the first movable assembly comprises a polyethylene layer, and the inner side of the polyethylene layer is fixedly connected with an expanded polystyrene layer; according to the utility model, the device can be in a folded state during transportation, so that the occupied space is reduced, meanwhile, the flexibility of movement and adjustment of the device is improved during construction, the device is not limited to a linear structure, and the convenience of use of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal PVC expansion tubes, in particular to a foldable thermal PVC expansion tube. Background Art

[0002] Thermal expansion of PVC pipes may refer to the expansion characteristics of PVC pipes when heated. PVC (polyvinyl chloride) is a thermoplastic that will expand when the temperature rises. This characteristic needs to be considered when designing and installing PVC piping systems to ensure that the piping system can adapt to temperature changes and avoid damage or leakage caused by thermal expansion and contraction.

[0003] The traditional thermal PVC expansion pipe is an integrated linear structure, which takes up a lot of space during transportation and also brings many inconveniences to the construction. Therefore, a foldable thermal PVC expansion pipe is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a foldable thermal PVC expansion tube to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A foldable thermal PVC expansion tube comprises a flange and a cylindrical tube body, wherein the flange is fixedly connected to the cylindrical tube body on one side, and a first movable component is fixedly connected to a silicone outer ring on one side of the cylindrical tube body, and a second movable component is fixedly connected to a silicone outer ring on the inner side of the silicone outer ring, and a first connection sealing component is fixedly connected to a first connection sealing component on the outer side of the second movable component, and a second connection sealing component is fixedly connected to a second connection sealing component on the outer side of the first movable component, the first movable component comprises a polyethylene layer, and an expanded polystyrene layer is fixedly connected to an inner side of the polyethylene layer, and a PVC layer is fixedly connected to an inner side of the expanded polystyrene layer, and a polyurethane layer is fixedly connected to an inner side of the PVC layer, and a folding groove is provided inside the polyethylene layer, and the first connection sealing component comprises a silicone tube, and a movable groove is provided inside the silicone tube.

[0007] As a further optimization of the present invention, there are two flanges, the inner side of the flange is hollow, and a plurality of mounting holes are provided inside the flange.

[0008] As a further optimization of the present invention, the cylindrical tube bodies are divided into several groups, each group of the cylindrical tube bodies has two cylindrical tube bodies, the rear end of the second movable component fixes the cylindrical tube body, each structure of the cylindrical tube body is the same as the first movable component, the inner side of the cylindrical tube body is hollow, and the inner side of the flange is connected to the inside of the cylindrical tube body.

[0009] As a further optimized content of the present invention, the shape and structure of the polyethylene layer are the same as those of the second movable component, the number of the first movable components is several, and the first movable components correspond one to one with the second movable components.

[0010] As a further optimization of the present invention, the polyethylene layer, expanded polystyrene layer, PVC layer and polyurethane layer are all arc-shaped sheet structures, the number of the polyethylene layer, expanded polystyrene layer, PVC layer and polyurethane layer corresponds one to one, and the polyethylene layer, expanded polystyrene layer, PVC layer and polyurethane layer are all provided with folding grooves.

[0011] As a further optimization of the present invention, the outer side of the folding groove is fixedly connected to one side of the silicone tube, one side of the silicone tube is fixedly connected to the silicone outer ring, one side of the silicone tube is flush with the inner side of the polyethylene layer, the inner side of the movable groove is connected to the inside of the folding groove, and one side of the silicone tube is fixedly connected to the outer side of the cylindrical tube body.

[0012] As a further optimization of the present invention, the second connection sealing component has the same structure as the first connection sealing component, one side of the second connection sealing component is fixedly connected to one side of the folding groove, and one side of the second connection sealing component is fixedly connected to the outer side of the cylindrical tube body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, by providing a cylindrical tube body, a first movable component, a silicone outer ring, a second movable component, a first connecting sealing component and a second connecting sealing component, the device can be in a folded state during transportation, thereby reducing space occupancy. At the same time, during construction, the flexibility of movement and adjustment of the device is improved, and it is not limited to a straight line structure, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the silicone outer ring of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first connecting sealing component of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the first movable component of the utility model.

[0019] In the figure: 1. flange; 2. cylindrical tube;

[0020] 3. first movable component; 31. polyethylene layer; 32. expanded polystyrene layer; 33. PVC layer; 34. polyurethane layer; 35. folding groove;

[0021] 4. Silicone outer ring; 5. Second movable component;

[0022] 6. First connection sealing assembly; 61. Silicone tube; 62. Movable groove;

[0023] 7. Second connection sealing assembly. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] A foldable thermal PVC expansion tube comprises a flange 1 and a cylindrical tube body 2, wherein the flange 1 is fixedly connected to the cylindrical tube body 2 on one side, a first movable component 3 is fixedly connected to the first movable component 3 on one side, a silicone outer ring 4 is fixedly connected to the outside of the first movable component 3, a second movable component 5 is fixedly connected to the inside of the silicone outer ring 4, a first connection sealing component 6 is fixedly connected to the outside of the second movable component 5, a second connection sealing component 7 is fixedly connected to the outside of the first movable component 3, the first movable component 3 comprises a polyethylene layer 31, an expanded polystyrene layer 32 is fixedly connected to the inside of the polyethylene layer 31, a PVC layer 33 is fixedly connected to the inside of the expanded polystyrene layer 32, a polyurethane layer 34 is fixedly connected to the inside of the PVC layer 33, a folding groove 35 is provided inside the polyethylene layer 31, and the first connection sealing component 6 comprises a silicone tube 61, and a movable groove 62 is provided inside the silicone tube 61.

[0028] As a further implementation of this solution, there are two flanges 1, the inner side of the flange 1 is hollow, and a plurality of mounting holes are provided inside the flange 1, so that multiple sections of pipelines can be connected;

[0029] As a further implementation of this scheme, the number of the cylindrical tube body 2 is several groups, and the number of each group of the cylindrical tube body 2 is two. The rear end of the second movable component 5 fixes the cylindrical tube body 2. The structure of each part of the cylindrical tube body 2 is the same as that of the first movable component 3. The inner side of the cylindrical tube body 2 is hollow, and the inner side of the flange 1 is connected to the inside of the cylindrical tube body 2, which plays a role in connecting the first movable component 3 and the second movable component 5.

[0030] As a further implementation of the present scheme, the shape and structure of the polyethylene layer 31 are the same as those of the second movable component 5, the number of the first movable components 3 is a certain number, and the first movable components 3 correspond to the second movable components 5 one by one, so as to play the role of symmetrical movement between the first movable components 3 and the second movable components 5, and facilitate folding;

[0031] As a further implementation of the present scheme, the polyethylene layer 31, the expanded polystyrene layer 32, the PVC layer 33 and the polyurethane layer 34 are all arc-shaped sheet structures, the number of the polyethylene layer 31, the expanded polystyrene layer 32, the PVC layer 33 and the polyurethane layer 34 corresponds to each other, and the polyethylene layer 31, the expanded polystyrene layer 32, the PVC layer 33 and the polyurethane layer 34 are all provided with folding grooves 35 inside, which play the role of heat insulation, corrosion resistance and wear resistance;

[0032] As a further implementation of this solution, the outer side of the folding groove 35 is fixedly connected to one side of the silicone tube 61, one side of the silicone tube 61 is fixedly connected to the silicone outer ring 4, one side of the silicone tube 61 is flush with the inner side of the polyethylene layer 31, the inner side of the movable groove 62 is connected to the inside of the folding groove 35, and one side of the silicone tube 61 is fixedly connected to the outer side of the cylindrical tube body 2, which plays a role in connecting the polyethylene layers 31 and at the same time plays a role in blocking the folding groove 35;

[0033] As a further implementation scheme of the present scheme, the second connecting sealing component 7 has the same structure as the first connecting sealing component 6, one side of the second connecting sealing component 7 is fixedly connected to one side of the folding groove 35, and one side of the second connecting sealing component 7 is fixedly connected to the outer side of the cylindrical tube body 2, so that the device has a certain bendability, thereby improving the convenience of use.

[0034] Working process: During the use of the device, when it is in the transport state, the flanges 1 at both ends are squeezed at the same time. Under the pressure of the flanges 1, the angle of the polyethylene layer 31 rotates, and the internal structure of the second movable component 5 also rotates accordingly. The polyethylene layer 31 drives the expanded polystyrene layer 32, the PVC layer 33 and the polyurethane layer 34 to rotate accordingly. The outer side of the polyethylene layer 31 is fixedly connected to the silicone tube 61. At this time, the silicone tube 61 is deformed. The silicone tube 61 is made of silicone material and plays a role in connecting the polyethylene layers 31 and sealing the folding groove 35. The polyethylene layer 31, the expanded polystyrene layer 32, the PVC layer 33 and the polyurethane layer 34 move between the folding groove 35. When the polyethylene layer After 31 contacts with the second movable component 5, the silicone outer ring 4 undergoes a certain deformation. The function of the silicone outer ring 4 is the same as that of the first connecting sealing component 6. At this time, the device can be in a storage state. When it needs to be used, pull the flanges 1 at both ends. At this time, the second movable component 5 and the first movable component 3 will stretch. When the polyethylene layers 31 are fitted together, one side of the polyethylene layer 31 is fitted with one side of the second movable component 5, and the device can be used. At the same time, under the action of the silicone outer ring 4 and the first connecting sealing component 6, the device can have a certain bendability, which improves the convenience of use. The polyethylene layer 31 has a wear-resistant effect, the expanded polystyrene layer 32 has a heat-insulating effect, and the polyurethane layer 34 has an anti-corrosion effect.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable thermal PVC expansion tube, comprising a flange (1) and a cylindrical tube body (2), characterized in that: The flange (1) is fixedly connected to a cylindrical tube body (2) on one side, the cylindrical tube body (2) is fixedly connected to a first movable component (3) on one side, the first movable component (3) is fixedly connected to a silicone outer ring (4) on the outside, the silicone outer ring (4) is fixedly connected to a second movable component (5) on the inside, the second movable component (5) is fixedly connected to a first connection sealing component (6) on the outside, and the first movable component (3) is fixedly connected to a second connection sealing component (7) on the outside; The first movable component (3) comprises a polyethylene layer (31), an expanded polystyrene layer (32) is fixedly connected to the inner side of the polyethylene layer (31), a PVC layer (33) is fixedly connected to the inner side of the expanded polystyrene layer (32), a polyurethane layer (34) is fixedly connected to the inner side of the PVC layer (33), a folding groove (35) is provided inside the polyethylene layer (31), and the first connection sealing component (6) comprises a silicone tube (61), a movable groove (62) is provided inside the silicone tube (61).

2. A foldable thermal PVC expansion tube according to claim 1, characterized in that: There are two flanges (1), the inner side of the flange (1) is hollow, and a plurality of mounting holes are provided inside the flange (1).

3. A foldable thermal PVC expansion tube according to claim 1, characterized in that: The cylindrical tube bodies (2) are provided in a plurality of groups, each group of the cylindrical tube bodies (2) having two members. The rear end of the second movable assembly (5) fixes the cylindrical tube body (2). Each structure of the cylindrical tube body (2) is the same as that of the first movable assembly (3). The inner side of the cylindrical tube body (2) is hollow, and the inner side of the flange (1) is connected to the inner side of the cylindrical tube body (2).

4. A foldable thermal PVC expansion tube according to claim 1, characterized in that: The shape and structure of the polyethylene layer (31) are the same as those of the second movable component (5); there are a plurality of first movable components (3), and the first movable components (3) correspond one to one with the second movable components (5).

5. The foldable thermal PVC expansion tube according to claim 1, characterized in that: The polyethylene layer (31), the expanded polystyrene layer (32), the PVC layer (33) and the polyurethane layer (34) are all arc-shaped sheet structures, the number of the polyethylene layer (31), the expanded polystyrene layer (32), the PVC layer (33) and the polyurethane layer (34) corresponds to one another, and the polyethylene layer (31), the expanded polystyrene layer (32), the PVC layer (33) and the polyurethane layer (34) are all provided with folding grooves (35) inside.

6. The foldable thermal PVC expansion tube according to claim 1, characterized in that: The outer side of the folding groove (35) is fixedly connected to one side of the silicone tube (61), and one side of the silicone tube (61) is fixedly connected to the silicone outer ring (4). One side of the silicone tube (61) is flush with the inner side of the polyethylene layer (31). The inner side of the movable groove (62) is connected to the inside of the folding groove (35), and one side of the silicone tube (61) is fixedly connected to the outer side of the cylindrical tube body (2).

7. The foldable thermal PVC expansion tube according to claim 1, characterized in that: The second connection sealing component (7) has the same structure as the first connection sealing component (6), one side of the second connection sealing component (7) is fixedly connected to one side of the folding groove (35), and one side of the second connection sealing component (7) is fixedly connected to the outer side of the cylindrical tube body (2).

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