Safety type composite pipe

Abstract

The utility model relates to a combined pipe, and discloses a safety type composite pipe which comprises an inner layer pipe and an outer layer pipe, the outer layer pipe is arranged on the periphery of the inner layer pipe in a sleeved mode, and a first thread groove and a second thread groove which extend in the length direction of the inner layer pipe are formed in the inner wall and the outer wall of the inner layer pipe respectively. A third thread groove and a fourth thread groove which extend in the length direction of the outer-layer pipe are formed in the inner wall and the outer wall of the outer-layer pipe correspondingly, the spiral direction of the first thread groove is the same as that of the second thread groove, and the spiral direction of the third thread groove is the same as that of the fourth thread groove; the spiral directions of the first thread groove and the third thread groove are opposite; a first framework is arranged on the first thread groove, a second framework is arranged on the second thread groove, a third framework is arranged on the third thread groove, and a fourth framework is arranged on the fourth thread groove; and a multi-layer pipe structure is arranged, so that leakage of conveyed materials is effectively prevented, and lodging and dislocation can be effectively prevented by arranging the frameworks with opposite spiral directions.

Description

Technical Field

[0001] The utility model relates to a combined pipe, in particular to a safety composite pipe. Background Art

[0002] At present, composite pipes may be mechanically damaged or corroded by chemicals during use, or be placed in a high temperature environment, causing the internal pressure of the composite pipe to increase. When the pressure inside the composite pipe is too high, these situations may cause the composite pipe to break and leak, making the composite pipe invalid. Composite pipes are usually used to transport highly polluting or dangerous gases or liquids. If the composite pipe used for transportation leaks, the transported substances may leak, causing environmental pollution or safety accidents. Therefore, preventing and detecting composite pipe leakage is particularly important for improving the safety of composite pipes.

[0003] In addition, when the existing composite pipe is subjected to extreme bending, the structure of the composite pipe is prone to collapse and dislocation, which in turn leads to a reduction in the strength or pressure-bearing capacity of the composite pipe. In this case, the composite pipe is prone to damage, resulting in leakage of the material transported inside. Utility Model Content

[0004] The utility model aims to provide a safe composite pipe, which is provided with a multi-layer pipe structure to effectively prevent leakage of the transported material and can effectively prevent the self-structure from falling over and dislocating.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a composite reinforced tube, which comprises an inner tube and an outer tube, the outer tube is sleeved on the outer circumference of the inner tube, the inner wall of the inner tube is provided with a first thread groove extending along the length direction of the inner tube, and the outer wall of the inner tube is provided with a second thread groove extending along the length direction of the inner tube; the inner wall of the outer tube is provided with a third thread groove extending along the length direction of the outer tube, and the outer wall of the outer tube is provided with a fourth thread groove extending along the length direction of the outer tube, the first thread groove and the second thread groove have the same spiral direction, the third thread groove and the fourth thread groove have the same spiral direction; the first thread groove is opposite to the third thread groove in spiral direction;

[0006] The bottom of the first thread groove is provided with a first skeleton arranged along the first thread groove, the bottom of the second thread groove is provided with a second skeleton arranged along the second thread groove, the bottom of the third thread groove is provided with a third skeleton arranged along the third thread groove, and the bottom of the fourth thread groove is provided with a fourth skeleton arranged along the fourth thread groove.

[0007] Preferably, the composite tube further comprises a separator tube disposed between the outer tube and the inner tube, the second skeleton is disposed on the inner side of the separator tube, and the third skeleton is disposed on the outer side of the separator tube.

[0008] Preferably, the inner layer tube includes a barrier layer and a reinforcing layer stacked in sequence from inside to outside. The first skeleton is disposed inside the barrier layer, and the second skeleton is disposed outside the reinforcing layer.

[0009] Furthermore, the barrier layer is made of a corrosion-resistant material.

[0010] Preferably, the reinforcing layer and the outer layer tube are made of synthetic fiber fabrics.

[0011] Preferably, the outer layer tube includes an outer covering layer. The outer wall of the outer covering layer defines the outer wall of the outer layer tube, and the fourth thread groove is disposed on the outer covering layer.

[0012] Preferably, a sensor for detecting whether there is leakage inside the outer layer tube is disposed on the outer layer tube.

[0013] Preferably, the first skeleton, the second skeleton, the third skeleton, and the fourth skeleton are all steel wires.

[0014] Preferably, the first thread groove and the second thread groove are arranged in a staggered manner, and the third thread groove and the fourth thread groove are arranged in a staggered manner.

[0015] Compared with the prior art, the beneficial effects of the safety composite tube according to the embodiment of the present invention are as follows: By providing the inner layer tube and the outer layer tube, when the inner layer tube is damaged, the outer layer tube outside the inner layer tube can provide effective sealing to prevent the leakage of the material inside the composite tube. By providing a multi-layer tube structure, the leakage of the composite tube can be effectively prevented; on this basis, thread grooves are provided on the inner and outer walls of the inner layer tube and the outer layer tube, and corresponding skeleton structures are provided in the thread grooves. Among them, the directions of the thread grooves on the inner layer tube are the same, the directions of the thread grooves on the outer layer tube are the same, and the directions of the thread grooves on the inner layer tube and the outer layer tube are opposite. The cooperation of the skeletons in the thread grooves improves the overall strength of the composite tube, and when the composite tube is subjected to an external force, the overall force of the composite tube can be made uniform, avoiding the situation of the composite tube falling down and being misaligned, and effectively improving the reliability of the composite tube. Description of the Drawings

[0016] Figure 1 is an external intuitive view of the safety composite tube according to the embodiment of the present invention.

[0017] Figure 2 is the Figure 1 cross-sectional view taken along line A-A of the safety composite tube according to the embodiment of the present invention.

[0018] Figure 3 is the Figure 2 enlarged view at B of the safety composite tube according to the embodiment of the present invention.

[0019] In the figure, 1 is the inner layer tube; 11 is the first thread groove; 12 is the second thread groove; 13 is the barrier layer; 14 is the reinforcing layer; 2 is the outer layer tube; 21 is the third thread groove; 22 is the fourth thread groove; 23 is the outer covering layer; 3 is the first skeleton; 4 is the second skeleton; 5 is the third skeleton; 6 is the fourth skeleton; 7 is the partition tube. Detailed implementation manners

[0020] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0021] In the description of the present utility model, it should be understood that in the description of the present utility model, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] As Figure 1 shown, a safety composite tube of a preferred embodiment of the present utility model includes an inner layer tube 1 and an outer layer tube 2. The outer layer tube 2 is sleeved on the outer periphery of the inner layer tube 1. The inner wall of the inner layer tube 1 is provided with a first thread groove 11 extending along the length direction of the inner layer tube 1. The outer wall of the inner layer tube 1 is provided with a second thread groove 12 extending along the length direction of the inner layer tube 1. The inner wall of the outer layer tube 2 is provided with a third thread groove 21 extending along the length direction of the outer layer tube 2. The outer wall of the outer layer tube 2 is provided with a fourth thread groove 22 extending along the length direction of the outer layer tube 2. The spiral directions of the first thread groove 11 and the second thread groove 12 are the same. The spiral directions of the third thread groove 21 and the fourth thread groove 22 are the same. The spiral direction of the first thread groove 11 is opposite to that of the third thread groove 21;

[0023] The bottom of the first thread groove 11 is provided with a first skeleton 3 arranged along the first thread groove 11. The bottom of the second thread groove 12 is provided with a second skeleton 4 arranged along the second thread groove 12. The bottom of the third thread groove 21 is provided with a third skeleton 5 arranged along the third thread groove 21. The bottom of the fourth thread groove 22 is provided with a fourth skeleton 6 arranged along the fourth thread groove 22.

[0024] Specifically, when transporting materials, the materials move inside the inner layer pipe 1, and the outer layer pipe 2 is sleeved outside the inner layer pipe 1. The inner layer pipe 1 and the outer layer pipe 2 are connected to each other with a gap. The first thread groove 11 and the second thread groove 12 are respectively arranged on the inner wall and the outer wall of the inner layer pipe 1. The spiral directions of the first skeleton 3 and the second skeleton 4 respectively arranged along the first thread groove 11 and the second thread groove 12 are the same, providing support for the inner layer pipe 1 to ensure the stability of the inner layer pipe 1; the spiral directions of the third skeleton 5 and the fourth skeleton 6 respectively arranged along the third thread groove 21 and the fourth thread groove 22 are the same, providing support for the outer layer pipe 2 to ensure the stability of the outer layer pipe 2; the spiral directions of the thread grooves on the inner layer pipe 1 and the outer layer pipe 2 are opposite, so that the winding directions of the skeletons arranged on the inner layer pipe 1 and the outer layer pipe 2 are opposite and staggered. The combined composite pipe structure is uniformly stressed. When subjected to external forces, the skeletons on the inner layer pipe 1 and the outer layer pipe 2 support and pull each other, capable of providing stable support and preventing the inner layer pipe 1 and the outer layer pipe 2 from toppling and misaligning.

[0025] During use, the materials to be transported are introduced into the inner layer pipe 1 for flow transmission. When the inner layer pipe 1 is damaged and leaks, the outer layer pipe 2 sleeved outside the inner layer pipe 1 can prevent material leakage, greatly improving the safety of the composite pipe. After use, it is only necessary to inspect and replace the composite pipe; the first skeleton 3, the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 provide effective support for the inner layer pipe 1 and the outer layer pipe 2. When subjected to external forces, the inner layer pipe 1 and the outer layer pipe 2 pull each other, capable of effectively preventing the composite pipe from toppling and misaligning, and greatly improving the overall stability of the composite pipe.

[0026] Preferably, the composite pipe further includes a partition pipe 7 arranged between the outer layer pipe 2 and the inner layer pipe 1. The second skeleton 4 is arranged on the inner side of the partition pipe 7, and the third skeleton 5 is arranged on the outer side of the partition pipe 7; the partition pipe 7 separates the second skeleton 4 from the third skeleton 5, capable of effectively preventing the second skeleton 4 and the third skeleton 5 from being twisted together.

[0027] Preferably, the inner layer pipe 1 includes a barrier layer 13 arranged on one side of its inner wall and a reinforcement layer 14 arranged on one side of its outer wall. The barrier layer 13 is attached to the reinforcement layer 14. The first skeleton 3 is arranged on the inner side of the barrier layer 13, and the second skeleton 4 is arranged on the outer side of the reinforcement layer 14.

[0028] Specifically, the inner wall of the inner layer pipe 1 is provided with a barrier layer 13. The material of the barrier layer 13 is different from the rest of the inner layer pipe 1, capable of saving production materials; the first skeleton 3 is arranged on the inner side of the barrier layer 13, providing support for the whole inner layer pipe 1.

[0029] Furthermore, the barrier layer 13 is made of corrosion-resistant material.

[0030] Specifically, since the barrier layer 13 is in direct contact with the transported material, the barrier layer 13 is made of anti-corrosion material, which can ensure the safety and durability of the composite pipe.

[0031] Furthermore, the reinforcing layer 14 and the outer pipe 2 are composed of synthetic fiber fabrics.

[0032] Specifically, the reinforcing layer 14 and the outer pipe 2 are composed of synthetic fiber fabrics, which ensure the strength of the reinforcing layer 14 and the outer pipe 2 and can provide certain anti-corrosion performance to prevent material leakage.

[0033] Preferably, the outer pipe 2 includes an outer covering layer 23 attached to the outer wall of the outer pipe 2, and the fourth thread groove 22 is provided on the outer covering layer 23.

[0034] Specifically, the outer periphery of the outer pipe 2 is provided with an outer covering layer 23, and the outer covering layer 23 is made of anti-aging material, which can improve the durability of the composite pipe and extend its service life.

[0035] Preferably, a sensor for detecting whether there is leakage inside the outer pipe 2 is provided on the outer pipe 2.

[0036] Specifically, a material detection sensor can be set on the outer pipe 2. When the inner pipe 1 leaks, the material seeps out to the outer pipe 2, and the sensor will give a prompt after detecting the material, which is convenient for the user to understand the usage situation of the composite pipe; in addition, a temperature regulating device can also be set on the outer pipe 2 to regulate the temperature inside the composite pipe, so that the composite pipe is suitable for different temperature conditions and the material can be transported normally and safely.

[0037] Preferably, the first skeleton 3, the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 are all steel wires.

[0038] Specifically, the first skeleton 3, the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 are all selected as steel wires to provide sufficient support and strength; since the first skeleton 3 needs to be in contact with the material, the surface of the first skeleton 3 can be coated with anti-corrosion material to ensure the reliability of the first skeleton 3.

[0039] In addition, the first skeleton 3, the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 can also be made of non-metallic materials, as long as it is ensured that the first skeleton 3, the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 can provide stable support for the inner pipe 1 and the outer pipe 2.

[0040] Preferably, the first thread groove 11 and the second thread groove 12 are arranged alternately, and the third thread groove 21 and the fourth thread groove 22 are arranged alternately.

[0041] Specifically, the tube walls of the inner layer tube 1 and the outer layer tube 2 are bent structures. The grooves on the inner wall of the inner layer tube 1 form the first thread groove 11, the grooves on the outer wall of the inner layer tube 1 form the second thread groove 12, the grooves on the inner wall of the outer layer tube 2 form the third thread groove 21, and the grooves on the outer wall of the outer layer tube 2 form the fourth thread groove 22. Since the tube walls of the inner layer tube 1 and the outer layer tube 2 form bent structures, the first thread groove 11 and the second thread groove 12 are arranged staggeredly, and the third thread groove 21 and the fourth thread groove 22 are arranged staggeredly, which can make the installation of the first skeleton 3 and the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 closer, the composite tube is stressed evenly, and the overall strength of the composite tube is improved.

[0042] The working process of the present utility model is as follows: During use, the two ends of this composite tube are connected to the feeding port and the discharging port for transporting materials, and the materials are transported inside the inner layer tube 1. When the inner layer tube 1 is damaged, the materials seep out from the damaged part to the gap between the inner layer tube 1 and the outer layer tube 2. The partition tube 7 or the outer layer tube 2 can prevent the materials from leaking to the outside of this composite tube and causing pollution. At this time, the sensor on the outer layer tube 2 detects the seepage of the materials and issues a prompt to inform the user that the composite tube is damaged, and the user stops using or replaces it. The staggeredly arranged first skeleton 3 and the second skeleton 4, the third skeleton 5 and the fourth skeleton 6 provide stable support for this composite tube. Both the inner layer tube 1 and the outer layer tube 2 are connected to the partition tube 7. When an axial external force is applied, the inner layer tube 1 and the outer layer tube 2 pull each other and are supported by the skeleton, so that this composite tube will not be displaced and fall down. When a radial external force is applied, the skeleton will provide support to prevent this composite tube from being flattened and deformed and to transport materials normally.

[0043] In summary, the embodiment of the present utility model provides a safety-type composite tube, which effectively prevents pollution caused by material seepage and improves safety by setting a multi-layer structure; and sets a plurality of support skeletons. When an external force is applied to this composite tube, the support skeletons provide support, and the inner layer tube 1 and the outer layer tube 2 pull each other, which can prevent this composite tube from falling down and being displaced; and can provide corresponding prompts when leakage occurs, which is convenient for the user to replace in time.

[0044] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A safety composite pipe, characterized in that: It comprises an inner tube and an outer tube, the outer tube is sleeved on the outer circumference of the inner tube, the inner wall of the inner tube is provided with a first thread groove extending along the length direction of the inner tube, the outer wall of the inner tube is provided with a second thread groove extending along the length direction of the inner tube; the inner wall of the outer tube is provided with a third thread groove extending along the length direction of the outer tube, the outer wall of the outer tube is provided with a fourth thread groove extending along the length direction of the outer tube, the first thread groove and the second thread groove have the same spiral direction, the third thread groove and the fourth thread groove have the same spiral direction; the first thread groove is opposite to the third thread groove in spiral direction; The bottom of the first thread groove is provided with a first skeleton arranged along the first thread groove, the bottom of the second thread groove is provided with a second skeleton arranged along the second thread groove, the bottom of the third thread groove is provided with a third skeleton arranged along the third thread groove, and the bottom of the fourth thread groove is provided with a fourth skeleton arranged along the fourth thread groove.

2. The safety composite pipe according to claim 1, characterized in that: It also includes a separation tube disposed between the outer tube and the inner tube, the second frame is disposed on the inner side of the separation tube, and the third frame is disposed on the outer side of the separation tube.

3. The safety composite pipe according to claim 1, characterized in that: The inner tube includes a barrier layer and a reinforcement layer stacked in sequence from the inside to the outside, the first skeleton is arranged on the inner side of the barrier layer, and the second skeleton is arranged on the outer side of the reinforcement layer.

4. The safety composite pipe according to claim 3, characterized in that: The barrier layer is made of corrosion-resistant material.

5. The safety composite pipe according to claim 3, characterized in that: The reinforcement layer and the outer tube are made of synthetic fiber fabrics.

6. The safety composite pipe according to claim 1, characterized in that: The outer layer tube includes an outer covering layer, an outer wall of the outer covering layer defines an outer wall of the outer layer tube, and the fourth thread groove is provided on the outer covering layer.

7. The safety composite pipe according to claim 1, characterized in that: The outer tube is provided with a sensor for detecting whether there is leakage in the outer tube.

8. The safety composite pipe according to claim 1, characterized in that: The first skeleton, the second skeleton, the third skeleton and the fourth skeleton are all steel wires.

9. The safety composite pipe according to claim 1, characterized in that: The first thread groove and the second thread groove are arranged alternately, and the third thread groove and the fourth thread groove are arranged alternately.

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