High-strength anti-seismic pipe

Abstract

The utility model relates to the field of pipes, in particular to a high-strength shock-resistant pipe. The inner layer, the middle layer and the outer layer are all of a tubular structure, and the inner layer, the middle layer and the outer layer are coaxially distributed from inside to outside and are sequentially connected; the outer layer comprises wave trough parts and a plurality of wave crest parts which are integrally connected, the wave trough parts are connected with the peripheral surface of the middle layer, and the wave crest parts are distributed in the direction parallel to the center axis of the outer layer or spirally distributed around the center axis of the outer layer or obliquely distributed relative to the center axis of the outer layer. The pressure bearing capacity and the shock resistance of the pipe are improved by arranging a three-layer structure.

Description

Technical Field

[0001] The utility model relates to the field of pipes, in particular to a high-strength earthquake-resistant pipe. Background Art

[0002] Pipes are mainly used for transporting materials and are widely used in the chemical industry and water supply and drainage fields. They can be used to transport materials such as gas or liquid.

[0003] Pipes generally have only one layer structure, and a few have a two-layer structure with an inner layer and an outer layer. This is a corrugated pipe. The outer layer has alternating peaks and troughs. The inner and outer layers are used to achieve pressure bearing and earthquake resistance. However, the pressure bearing and earthquake resistance effects of the one-layer and two-layer structures need to be further improved. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a high-strength earthquake-resistant pipe material which improves the pressure-bearing and earthquake-resistant capabilities of the pipe material by setting a three-layer structure.

[0005] The technical solution of the utility model is a high-strength earthquake-resistant pipe, including an inner layer, a middle layer and an outer layer, all of which are tubular structures. The inner layer, the middle layer and the outer layer are coaxially distributed from the inside to the outside and are connected in sequence; the outer layer includes a trough portion and a plurality of crest portions connected as one body, the trough portion is connected to the outer peripheral surface of the middle layer, and the crest portions are distributed in a direction parallel to the central axis of the outer layer or spirally distributed around the central axis of the outer layer or obliquely distributed relative to the central axis of the outer layer.

[0006] Preferably, when the wave crests are distributed in a direction parallel to the central axis of the outer layer or distributed in a spiral around the central axis of the outer layer, the wave crests are strip-shaped structures, and a plurality of wave crests are evenly distributed around the central axis of the outer layer.

[0007] Preferably, one end of the inner layer and the middle layer on the same side is a flared portion, and the other end of the inner layer and the middle layer on the same side is a plug portion.

[0008] Preferably, an annular clamping groove is coaxially arranged on the inner circumference of the flared portion of the inner layer, and a clamping ring portion adapted to the clamping groove is coaxially arranged on the outer circumference of the inserting portion of the middle layer.

[0009] Preferably, both ends of the crest portion in the length direction are open or sealed.

[0010] Preferably, both ends of the crest portion in the length direction are open.

[0011] Preferably, when the peak portion is distributed obliquely relative to the central axis of the outer layer, the peak portion is an elliptical ring structure, and a plurality of peak portions are distributed equidistantly along the central axis direction of the outer layer.

[0012] Preferably, the inner layer and the outer layer are made of PP, PE or PVC, and the middle layer is made of a composite material of EBA, PE and PA.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The utility model improves the pressure bearing and earthquake resistance of the pipe by setting a three-layer structure of an inner layer, an intermediate layer and an outer layer. The intermediate layer can enhance the structural strength of the entire pipe. The crest of the straight strip or spiral strip structure or the elliptical ring structure can further improve the deformation resistance and earthquake resistance of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0016] Figure 2 for Figure 1 Structural cross-sectional view of

[0017] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the third embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the fourth embodiment of the present utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the fifth embodiment of the present invention.

[0021] Figure numerals: 1, inner layer; 101, groove; 2, middle layer; 201, clamping ring portion; 3, outer layer; 31, trough portion; 32, peak portion. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] like Figure 1 and Figure 2 As shown, a high-strength earthquake-resistant pipe material proposed in this embodiment includes an inner layer 1, an intermediate layer 2 and an outer layer 3, all of which are tubular structures. The inner layer 1, the intermediate layer 2 and the outer layer 3 are coaxially distributed from the inside to the outside and are connected in sequence. The inner layer 1 and the outer layer 3 are made of PP (polypropylene), PE (polyethylene) or PVC (polyvinyl chloride), and the intermediate layer 2 is made of a composite material of EBA (ethylene butyl acrylate), PE and PA (polyamide). The intermediate layer 2 plays a role in enhancing the structural strength, so that the entire pipe is not easily deformed, and the pressure bearing and earthquake resistance are improved.

[0024] The inner layer 1 and the middle layer 2 have a flared portion at one end on the same side, and a socket portion at the other end on the same side. When connecting two pipes, a rubber ring is put on the outer circumference of the socket portion of one pipe, and the socket portion of the pipe is inserted into the inner side of the flared portion of the other pipe to connect, and the rubber ring has a sealing effect.

[0025] An annular clamping groove 101 is coaxially arranged on the inner circumference of the expanded part of the inner layer 1, and a clamping ring part 201 adapted to the clamping groove 101 is coaxially arranged on the outer circumference of the plug part of the middle layer 2. Before connecting the two pipes, a rubber ring is first put between the clamping ring part 201 and the outer layer 3, and then the clamping ring part 201 at the plug part of one pipe is clamped into the clamping groove 101 of the expanded part of the other pipe, so as to achieve a stable and sealed connection between the two pipes.

[0026] The outer layer 3 includes a trough portion 31 and a plurality of integrally connected peak portions 32, wherein the trough portion 31 is connected to the outer peripheral surface of the middle layer 2. The peak portions 32 are distributed in a direction parallel to the central axis of the outer layer 3, and are strip-shaped structures, specifically straight strip-shaped structures. The plurality of peak portions 32 are evenly distributed around the central axis of the outer layer 3. Both ends of the peak portions 32 in the length direction are open or sealed.

[0027] This embodiment improves the pressure bearing and earthquake resistance of the pipe by providing a three-layer structure of an inner layer 1, an intermediate layer 2 and an outer layer 3. The intermediate layer 2 can enhance the structural strength of the entire pipe. The straight strip-shaped peak portion 32 can further enhance the deformation resistance and earthquake resistance of the pipe.

[0028] Embodiment 2

[0029] like Figure 3 As shown, a high-strength earthquake-resistant pipe material proposed in this embodiment includes an inner layer 1, an intermediate layer 2 and an outer layer 3, all of which are tubular structures. The inner layer 1, the intermediate layer 2 and the outer layer 3 are coaxially distributed from the inside to the outside and connected in sequence. The inner layer 1 and the outer layer 3 are made of PP, PE or PVC, and the intermediate layer 2 is made of a composite material of EBA, PE and PA.

[0030] One end of the inner layer 1 and the middle layer 2 on the same side is a flared portion, and the other end of the inner layer 1 and the middle layer 2 on the same side is a plug portion.

[0031] An annular groove 101 is coaxially arranged on the inner circumference of the expanded portion of the inner layer 1, and a clamping ring portion 201 adapted to the groove 101 is coaxially arranged on the outer circumference of the socket portion of the middle layer 2. The socket connection of the two pipes is achieved by clamping the clamping ring portion 201 of one pipe into the groove 101 of the other pipe.

[0032] The outer layer 3 includes a trough portion 31 and a plurality of integrally connected peak portions 32, wherein the trough portion 31 is connected to the outer peripheral surface of the middle layer 2. The peak portions 32 are spirally distributed around the central axis of the outer layer 3, and the peak portions 32 are strip-shaped structures, specifically spiral strip-shaped structures. The plurality of peak portions 32 are evenly distributed around the central axis of the outer layer 3. Both ends of the peak portions 32 in the length direction are open or sealed.

[0033] This embodiment improves the pressure bearing and earthquake resistance of the pipe by providing a three-layer structure of an inner layer 1, an intermediate layer 2 and an outer layer 3. The intermediate layer 2 can enhance the structural strength of the entire pipe. The crest portion 32 of the spiral strip structure can further enhance the deformation resistance and earthquake resistance of the pipe, thereby improving the pressure resistance of the entire pipe.

[0034] Embodiment 3

[0035] like Figure 4 As shown, a high-strength earthquake-resistant pipe material proposed in this embodiment includes an inner layer 1, an intermediate layer 2 and an outer layer 3, all of which are tubular structures. The inner layer 1, the intermediate layer 2 and the outer layer 3 are coaxially distributed from the inside to the outside and connected in sequence. The inner layer 1 and the outer layer 3 are made of PP, PE or PVC, and the intermediate layer 2 is made of a composite material of EBA, PE and PA.

[0036] The outer layer 3 includes a trough portion 31 and a plurality of integrally connected peak portions 32, and the trough portion 31 is connected to the outer peripheral surface of the middle layer 2. The peak portions 32 are distributed in a direction parallel to the central axis of the outer layer 3, and the peak portions 32 are strip-shaped structures, specifically straight strip-shaped structures. The plurality of peak portions 32 are evenly distributed around the central axis of the outer layer 3. Both ends of the peak portion 32 in the length direction are open, which is convenient for production.

[0037] This embodiment improves the pressure bearing and earthquake resistance of the pipe by setting a three-layer structure of an inner layer 1, an intermediate layer 2 and an outer layer 3. The intermediate layer 2 can enhance the structural strength of the entire pipe. The straight strip-shaped peak portion 32 can further enhance the deformation resistance and earthquake resistance of the pipe. For the pipe in this embodiment, a longer pipe can be cut into pipes of the required length according to the needs of use, which is flexible to use and the ends of the cut pipes are neat. When connecting two pipes, align the ends of the two pipes and perform hot melt welding.

[0038] Embodiment 4

[0039] like Figure 5 As shown, a high-strength earthquake-resistant pipe material proposed in this embodiment includes an inner layer 1, an intermediate layer 2 and an outer layer 3, all of which are tubular structures. The inner layer 1, the intermediate layer 2 and the outer layer 3 are coaxially distributed from the inside to the outside and connected in sequence. The inner layer 1 and the outer layer 3 are made of PP, PE or PVC, and the intermediate layer 2 is made of a composite material of EBA, PE and PA.

[0040] The outer layer 3 includes a trough portion 31 and a plurality of integrally connected peak portions 32, and the trough portion 31 is connected to the outer peripheral surface of the middle layer 2. The peak portions 32 are spirally distributed around the central axis of the outer layer 3, and the peak portions 32 are strip-shaped structures, specifically spiral strip-shaped structures. The plurality of peak portions 32 are evenly distributed around the central axis of the outer layer 3. Both ends of the peak portion 32 in the length direction are open, which is convenient for production.

[0041] This embodiment improves the pressure bearing and earthquake resistance of the pipe by setting a three-layer structure of an inner layer 1, an intermediate layer 2 and an outer layer 3. The intermediate layer 2 can enhance the structural strength of the entire pipe. The crest portion 32 of the spiral strip structure can further enhance the deformation resistance and earthquake resistance of the pipe. For the pipe in this embodiment, a longer pipe can be cut into pipes of the required length according to the needs of use, which is flexible to use and the ends of the cut pipes are neat. When connecting two pipes, align the ends of the two pipes and perform hot melt welding.

[0042] Embodiment 5

[0043] like Figure 6 As shown, a high-strength earthquake-resistant pipe material proposed in this embodiment includes an inner layer 1, an intermediate layer 2 and an outer layer 3, all of which are tubular structures. The inner layer 1, the intermediate layer 2 and the outer layer 3 are coaxially distributed from the inside to the outside and connected in sequence. The inner layer 1 and the outer layer 3 are made of PP, PE or PVC, and the intermediate layer 2 is made of a composite material of EBA, PE and PA.

[0044] The outer layer 3 includes a trough portion 31 and a plurality of integrally connected peak portions 32, and the trough portion 31 is connected to the outer peripheral surface of the middle layer 2. The peak portion 32 is inclined relative to the central axis of the outer layer 3, and the peak portion 32 is an elliptical ring structure. The plurality of peak portions 32 are equidistantly distributed along the central axis of the outer layer 3, so that the entire pipe can be evenly stressed.

[0045] This embodiment improves the pressure bearing and earthquake resistance of the pipe by setting a three-layer structure of an inner layer 1, an intermediate layer 2 and an outer layer 3. The intermediate layer 2 can enhance the structural strength of the entire pipe. The peak portion 32 of the elliptical ring structure can further improve the pipe's anti-deformation and earthquake resistance. For the pipe in this embodiment, a longer pipe can be cut into pipes of the required length according to the needs of use, which is flexible to use and the ends of the cut pipes are neat. When connecting two pipes, align the ends of the two pipes and perform hot-melt welding.

[0046] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A high-strength earthquake-resistant pipe, characterized in that: It comprises an inner layer (1), a middle layer (2) and an outer layer (3) which are all tubular structures, wherein the inner layer (1), the middle layer (2) and the outer layer (3) are coaxially distributed from the inside to the outside and are connected in sequence; The outer layer (3) includes a trough portion (31) and a plurality of integrally connected peak portions (32); the trough portion (31) is connected to the outer peripheral surface of the middle layer (2); the peak portions (32) are distributed in a direction parallel to the central axis of the outer layer (3) or are spirally distributed around the central axis of the outer layer (3) or are obliquely distributed relative to the central axis of the outer layer (3).

2. A high-strength earthquake-resistant pipe according to claim 1, characterized in that: When the wave crests (32) are distributed in a direction parallel to the central axis of the outer layer (3) or are distributed spirally around the central axis of the outer layer (3), the wave crests (32) are strip-shaped structures, and a plurality of wave crests (32) are evenly distributed around the central axis of the outer layer (3).

3. A high-strength earthquake-resistant pipe according to claim 2, characterized in that: One end of the inner layer (1) and the middle layer (2) on the same side is a flared portion, and the other end of the inner layer (1) and the middle layer (2) on the same side is a plug portion.

4. The high-strength earthquake-resistant pipe according to claim 3, characterized in that: An annular clamping groove (101) is coaxially arranged on the inner circumference of the expanded portion of the inner layer (1), and a clamping ring portion (201) adapted to the clamping groove (101) is coaxially arranged on the outer circumference of the insert portion of the middle layer (2).

5. The high-strength earthquake-resistant pipe according to claim 3, characterized in that: Both ends of the wave crest portion (32) in the length direction are open or sealed.

6. The high-strength earthquake-resistant pipe according to claim 2, characterized in that: Both ends of the wave crest portion (32) in the length direction are open.

7. The high-strength earthquake-resistant pipe according to claim 1, characterized in that: When the peak portion (32) is distributed obliquely relative to the central axis of the outer layer (3), the peak portion (32) is an elliptical ring structure, and a plurality of peak portions (32) are distributed equidistantly along the central axis direction of the outer layer (3).

8. The high-strength earthquake-resistant pipe according to claim 1, characterized in that: The inner layer (1) and the outer layer (3) are made of PP, PE or PVC.

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