Anti-seismic large-diameter high-male-pressure steel wire mesh reinforced polyethylene composite pipe

Abstract

The utility model belongs to the technical field of composite polyethylene plastic pipes, and particularly relates to an anti-seismic large-diameter high-male-pressure steel wire mesh reinforced polyethylene composite pipe which comprises a plurality of main pipe materials, a plurality of cushioning structures and a plurality of shock absorption connecting pipes, the main pipe materials are sequentially connected, the cushioning structures surround the main pipe materials, and the shock absorption connecting pipes are connected with the cushioning structures. The adjacent main pipes are connected through the shock absorption connecting pipes; the damping structure comprises a damping pipe shell and a damping air cushion, the damping pipe shell is arranged on the outer side of the main pipe in a surrounding mode, the damping air cushion is arranged between the main pipe and the damping structure, and the damping air cushion is provided with a force release air port; and weak vibration energy transmitted to the main pipe material is converted into heat energy in the composite polyethylene particles through multiple times of rotation, so that the technical effects that the main pipe material at a certain position is prevented from vibrating, other main pipe materials are prevented from being driven to vibrate, and other main pipe materials are prevented from being subjected to extra vibration are achieved, and the service life of the whole pipeline structure is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of composite polyethylene plastic pipes, and specifically relates to an earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe. Background Art

[0002] Composite polyethylene plastic pipes have good insulation properties, but the existing composite polyethylene plastic pipe structure has the disadvantage of poor anti-vibration effect, especially when used in a certain buried manner: for example, when composite polyethylene plastic pipes are inserted into buildings or between floors to transmit materials, or buried underground to transmit materials, the vibration of the floor or the vibration of ground vehicles will cause the composite polyethylene plastic pipes to be easily broken due to external vibrations during long-term use. Various vibrations greatly reduce the service life of composite polyethylene plastic pipes. Composite polyethylene plastic pipes are also known as high-density polyethylene in the industry. Polyethylene is a thermoplastic resin with extremely high crystallinity. Its appearance is white, and its thin sheets are translucent to a certain extent.

[0003] And because composite polyethylene plastic pipes are often connected in a rigid manner, when the composite polyethylene plastic pipes are vibrated, not only the composite polyethylene plastic pipes directly vibrated will be damaged, but adjacent multi-section composite polyethylene plastic pipes will also be indirectly damaged due to the transmission of vibration.

[0004] Composite polyethylene plastic pipes are often abandoned when laid underground due to their poor seismic resistance. However, it is difficult to find a perfect substitute for this low-cost, high-performance pipe. The substitutes are often expensive and have poor performance. Especially in the Northwest region, the geological conditions are complex, seismic activities are frequent, and the combined effects of natural factors such as drought and wind and sand make the underground pipes in the Northwest region extremely susceptible to vibration, coupled with indirect vibration damage. Therefore, the service life of the pipeline structure of composite polyethylene plastic pipes used in the Northwest region is often far lower than the expected service life. Summary of the invention

[0005] The purpose of this application is to solve the technical problem in the prior art that underground pipes in the Northwest region are extremely susceptible to vibration, and coupled with indirect vibration damage, the service life of composite polyethylene plastic pipes used in the Northwest region is often far lower than the expected service life.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] A seismic-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe, comprising:

[0008] A plurality of main pipes, a plurality of shock absorbing structures and a plurality of shock absorbing pipes, wherein the plurality of main pipes are connected in sequence, the shock absorbing structures are arranged surrounding the main pipes, and adjacent main pipes are connected through the shock absorbing pipes;

[0009] The shock absorbing structure comprises a shock absorbing tube shell and a shock absorbing air cushion, wherein the shock absorbing tube shell is arranged to surround the outside of the main pipe material, the shock absorbing air cushion is arranged between the main pipe material and the shock absorbing structure, and the shock absorbing air cushion is provided with a force release port;

[0010] The shock-absorbing connecting pipe comprises a shock-absorbing pipe and joints arranged at both ends of the shock-absorbing pipe. The shock-absorbing pipe comprises a flexible hollow pipe wall and composite polyethylene particles. The cavity of the flexible hollow pipe wall is filled with the composite polyethylene particles.

[0011] Preferably, there are a plurality of shock absorbing air cushions, which are evenly distributed between the main pipe material and the shock absorbing pipe shell along the circumferential direction of the main pipe material.

[0012] Preferably, the shock absorbing structure further includes a plurality of return springs, one end of the return spring is arranged on the outside of the main pipe material, and the other end is arranged on the inside of the shock absorbing tube shell.

[0013] Preferably, a plurality of return springs are arranged around the shock absorbing air cushion and are evenly distributed around the shock absorbing air cushion.

[0014] Preferably, a buffer seat is provided at one end of the return spring, one end of the buffer seat is provided on the outside of the main pipe, and the other end of the buffer seat is provided at one end of the return spring.

[0015] Preferably, the pressure relief port is a gradually narrowing opening of the shock absorbing air cushion from the inside to the outside.

[0016] Preferably, the air release port is provided with an air-solid screen.

[0017] Preferably, the shock-absorbing tube shell includes a mounting layer and a shock-isolating cushion layer, the mounting layer is arranged on the outside of the shock-absorbing air cushion, and the shock-isolating cushion layer is arranged on the outside of the mounting layer.

[0018] Preferably, the main pipe material includes a polyethylene plastic pipe, a protective layer, a pressure-resistant layer, a reinforcement layer and a weather-resistant layer which are arranged in sequence from the outside to the inside.

[0019] Preferably, the inner ring of the shock-eliminating tube is provided with a flexible protective layer, a flexible pressure-resistant layer, a flexible reinforcement layer and a flexible weather-resistant layer in sequence from the outside to the inside.

[0020] Beneficial effects: the shock wave or shock force received by the shock-absorbing shell is transmitted to the shock-absorbing air cushion, which is squeezed by the displaced shock-absorbing shell. The squeezing force received by the shock-absorbing air cushion is first transmitted to the internal gas through its own deformation, and the internal gas is squeezed out from the exhaust port by the squeezing force. Through the above process, most of the energy of the shock wave or shock force is converted into the kinetic energy of the internal gas through the shock-absorbing air cushion, so that the main pipe material arranged inside is only slightly or not subjected to the shock wave or shock force, thus preventing the polyethylene plastic pipe from being broken due to vibration, and significantly increasing the service life of the polyethylene plastic pipe;

[0021] The energy of the weak vibration transmitted to the main pipe is converted multiple times into heat energy inside the composite polyethylene particles, thereby preventing the vibration of a main pipe material at a certain location from driving the vibration of other main pipe materials, thereby achieving the technical effect of preventing other main pipe materials from being subjected to additional vibration, thereby increasing the service life of the overall pipeline structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional schematic diagram of the earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe described in the embodiment;

[0023] Figure 2 is a front cross-sectional view of the main pipe material described in the embodiment;

[0024] Figure 3 is a cross-sectional view of the main pipe material described in the embodiment;

[0025] Figure 4 is a cross-sectional view of the shock absorbing pipe described in the embodiment;

[0026] Figure 5 is a right side cross-sectional view of the shock absorbing air cushion described in the embodiment;

[0027] Figure 6 It is a front view of the shock absorbing air cushion described in the embodiment.

[0028] In the figure: main pipe 100, shock absorbing structure 200, shock absorbing pipe 300, polyethylene plastic pipe 110, protective layer 120, pressure-resistant layer 130, reinforcement layer 140, weather-resistant layer 150, shock-absorbing pipe shell 210, installation layer 211, shock-isolating cushion layer 212, shock-absorbing air cushion 220, force-relieving air port 221, air-solid screen 222, return spring 230, buffer seat 231, shock-absorbing pipe 310, flexible hollow pipe wall 311, composite polyethylene particles 312, joint 320, flexible weather-resistant layer 330, flexible reinforcement layer 340, flexible pressure-resistant layer 350, flexible protective layer 360. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The technical solution of the present application will be further described below in conjunction with the drawings of the embodiments of the present application, and the present application is not limited to the following specific implementation methods.

[0030] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that if the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation of the present patent. For ordinary technicians in the field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0031] In a specific embodiment of the present application, Figures 1 to 6 As shown, there is a vibration-resistant composite polyethylene plastic pipe 110 structure, characterized in that it includes:

[0032] A plurality of main pipes 100, a plurality of shock absorbing structures 200 and a plurality of shock absorbing pipes 300, wherein the plurality of main pipes 100 are connected in sequence, the shock absorbing structures 200 are arranged around the main pipes 100, and adjacent main pipes 100 are connected through the shock absorbing pipes 300;

[0033] The shock absorbing structure 200 includes a shock absorbing shell 210 and a shock absorbing air cushion 220. The shock absorbing shell 210 is arranged to surround the outside of the main pipe 100. There is a semi-enclosed space between the shock absorbing shell 210 and the main pipe 100. Since the shock absorbing shell 210 is suitable for shock absorbing the main pipe 100 under the road, the shock absorbing shell 210 is longer in the length direction. The shock absorbing air cushion 220 is arranged in the semi-enclosed space between the main pipe 100 and the shock absorbing structure 200. The length of the main pipe 100 is longer. The shock absorbing air cushion 220 is provided with a force release air port 221. The function of the force release air port 221 is: when the shock absorbing shell 210 is vibrated, a weak vibration displacement is generated. At this time, the energy of the vibration received by the shock absorbing shell 210 will be transferred to the kinetic energy of the gas, prompting the gas in the shock absorbing air cushion 220 to be ejected from the force release air port 221.

[0034] The shock-absorbing connecting pipe 300 includes a shock-absorbing pipe 310 and joints 320 arranged at both ends of the shock-absorbing pipe 310. The joint 320 at one end of the shock-absorbing pipe 310 is connected to the front section of the main pipe material 100, and the joint 320 at the other end of the shock-absorbing pipe 310 is connected to the rear section of the main pipe material 100, thereby realizing the connection between two adjacent sections of the main pipe material 100. The shock-absorbing pipe 310 includes a flexible hollow pipe wall 311 and composite polyethylene particles 312, and the composite polyethylene particles 312 are filled in the cavity of the flexible hollow pipe wall 311.

[0035] In a specific implementation process, the anti-vibration composite polyethylene plastic pipe 110 structure of the present application is buried in the soil layer as an underground pipe, and the main pipe 100 of the present application is buried in the driveway or in the soil layer prone to vibration as an underground pipe. When the vibration wave or vibration force caused by external forces such as vehicle driving or earthquake is transmitted to the main pipe 100 buried in the driveway of the present application through the soil, the vibration wave or vibration force is first transmitted to the shock-absorbing pipe shell 210. The shock-absorbing pipe shell 210 is vibrated or displaced relative to the original position by the vibration wave or vibration force caused by the external force. At this time, the main pipe 100 is not moved by the vibration wave or vibration force, so the shock-absorbing pipe shell 210 is generated relative to the main pipe 100. The shock-absorbing shell 210 is displaced, and the force received by the shock-absorbing shell 210 is transmitted to the shock-absorbing air cushion 220. The shock-absorbing air cushion 220 is squeezed by the displaced shock-absorbing shell 210. Most of the force received by the shock-absorbing air cushion 220 is first transmitted to the internal gas through deformation. The gas is squeezed out from the force release port 221, and most of the energy of the shock wave or the shock force is converted into the kinetic energy of the gas through the shock-absorbing air cushion 220, so that the main pipe material 100 arranged inside is only subjected to a small part of the shock wave or the shock force, and the polyethylene plastic pipe 110 is prevented from being broken due to vibration. The squeezed gas is discharged into the above-mentioned semi-enclosed space. Since the gas volume in the semi-enclosed space does not change, the air pressure in the semi-enclosed space is temporarily increased;

[0036] When the vibration ends, the shock absorbing air cushion 220 also ends its shock absorption. Since the shock absorbing tube shell 210 supports a certain semi-enclosed space around the shock absorbing air cushion 220, the gas discharged from the shock absorbing air cushion 220 during shock absorption is squeezed into the semi-enclosed space and the gaps in the surrounding soil. At this time, the gas in the semi-enclosed space and the gaps in the surrounding soil will be slowly sucked into the shock absorbing air cushion 220 under the action of the atmospheric pressure and the temporarily increased air pressure in the semi-enclosed space and the elastic action of its own elastic structure. The shock absorbing air cushion 220 returns to its original position (i.e., restores its shape without being subjected to vibration) and waits for the next vibration to come. The above shock absorption process significantly increases the service life of the polyethylene plastic pipe 110.

[0037] On the other hand, when a small part of the vibration is transmitted to the main pipe 100 buried in the driveway of the present application, the vibration energy will be transmitted to other main pipes 100 along the pipes connected end to end, which will cause additional damage to other main pipes 100. At this time, the vibration absorbing pipe 300 connected between adjacent main pipes 100 eliminates the above small part of the vibration to prevent it from being transmitted to other main pipes 100. The specific process of eliminating the vibration is as follows:

[0038] Before the vibration is transmitted to the vibration absorbing pipe 300, the vibrated main pipe material 100 has a slight vibration displacement relative to the adjacent main pipe material 100. Since the flexible hollow pipe wall 311 is prone to elastic deformation, the vibration of the main pipe material 100 at that location drives the flexible hollow pipe wall 311 to deform, but does not directly drive other main pipe materials 100 to vibrate. The vibration energy received by the flexible hollow pipe wall 311 will be converted into the energy of the deformation of the flexible hollow pipe wall 311. The deformation energy of the flexible hollow pipe wall 311 will be further transferred to the composite polyethylene particles 312 through the pipe wall deformation extrusion. The composite polyethylene particles 312 squeeze and offset each other, and finally convert the deformation energy of the flexible hollow pipe wall 311 into heat energy inside the composite polyethylene particles 312, thereby preventing the vibration of a main pipe material 100 at a certain location from driving other main pipe materials 100 to vibrate, and achieving the technical effect of preventing other main pipe materials 100 from being subjected to additional vibration, thereby increasing the service life of the overall pipeline structure.

[0039] Beneficial effect: the shock wave or shock force received by the shock absorbing tube shell 210 is transmitted to the shock absorbing air cushion 220, and the shock absorbing air cushion 220 is squeezed by the displaced shock absorbing tube shell 210. The squeezing force received by the shock absorbing air cushion 220 is first transmitted to the internal gas through its own deformation, and the internal gas is squeezed out from the exhaust port 221 by the squeezing force. Through the above process, most of the energy of the shock wave or shock force is converted into the kinetic energy of the internal gas through the shock absorbing air cushion 220, so that the main pipe material 100 arranged inside is only subjected to a small part of the shock wave or shock force or is not subjected to any shock wave or shock force, so that the polyethylene plastic pipe 110 is prevented from being broken due to vibration, and the service life of the polyethylene plastic pipe 110 is significantly increased;

[0040] The energy of the weak vibration transmitted to the main pipe material 100 is converted into heat energy inside the composite polyethylene particles 312 after multiple conversions, thereby preventing the vibration of a main pipe material 100 at a certain location from driving other main pipe materials 100 to vibrate, thereby achieving the technical effect of preventing other main pipe materials 100 from being subjected to additional vibration, thereby increasing the service life of the overall pipeline structure.

[0041] In the above embodiment, if there is only one shock-absorbing air cushion 220 facing the vibration direction, the shock-absorbing tube shell 210 will be able to achieve a shock-absorbing effect when it vibrates in the direction toward the vibration, but will not be able to provide shock-absorbing effect when it vibrates away from the vibration direction, resulting in the main tube material 100 being subjected to force in only one direction, which may easily cause the main tube material 100 to bend and break. In a possible embodiment, there are multiple shock-absorbing air cushions 220, and they are evenly distributed between the main tube material 100 and the shock-absorbing tube shell 210 along the circumferential direction of the main tube material 100.

[0042] In a specific implementation process, for example, there are four shock-absorbing air cushions 220 distributed circumferentially around the main body 100 at an interval of 90 degrees. The shock-absorbing structure 200 can achieve a shock-absorbing effect no matter in which direction it is vibrated. For example, when the vibration generated by a car driving is transmitted from above, the upper side of the shock-absorbing structure 200 vibrates first, and the shock-absorbing air cushion 220 close to the upper side is first squeezed by the vibration, and the lower shock-absorbing air cushion 220 is pulled and inflated. Due to the elastic deformation, the inflated gas is discharged, further offsetting the vibration from above.

[0043] Beneficial effect: The shock-absorbing air cushions 220 uniformly distributed circumferentially between the main pipe 100 and the shock-absorbing structure 200 are pulled to expand, and the expanded gas is discharged due to elastic deformation, thereby further offsetting the vibration above.

[0044] In the above embodiment, after the shock-absorbing air cushion 220 is deformed, due to the existence of the pressure relief port 221, it cannot rely on its own structure to reset like the air spring in the prior art, and its service life is worrying if it relies solely on the shock-absorbing air cushion 220. In a possible embodiment, the shock-absorbing structure 200 also includes a plurality of return springs 230, one end of the return spring 230 is arranged on the outside of the main pipe material 100, and the other end is arranged on the inside of the shock-absorbing tube shell 210.

[0045] In a specific implementation process, for example, there are four shock-absorbing air cushions 220 circumferentially distributed around the main body 100 at an interval of 90 degrees. When the vibration generated by the driving of the car is transmitted from above, the upper side of the shock-absorbing structure 200 vibrates first, and the shock-absorbing air cushion 220 close to the upper side is first squeezed by the vibration, and the lower shock-absorbing air cushion 220 is pulled and inflated. Due to the elastic deformation, the inflated gas is discharged to further offset the vibration from above, and then the return spring 230 arranged to fully surround the shock-absorbing air cushion 220 produces a deformation in the same direction as the shock-absorbing air cushion 220. At this time, the return spring 230 will pull the shock-absorbing air cushion 220 to restore its original shape, disperse the force on the shock-absorbing air cushion 220, and increase the service life of the shock-absorbing air cushion 220.

[0046] Beneficial effect: After the shock-absorbing air cushion 220 is deformed during shock absorption, the return spring 230 that fully surrounds the shock-absorbing air cushion 220 together produces a deformation in the same direction as the shock-absorbing air cushion 220, and the return spring 230 generates an opposite elastic force to restore the shock-absorbing air cushion 220 to its original shape.

[0047] Furthermore, a plurality of return springs 230 are disposed around the shock absorbing air cushion 220 and are evenly distributed around the shock absorbing air cushion 220 .

[0048] Beneficial effect: The return spring 230 that fully surrounds the shock-absorbing air cushion 220 can disperse the force of the shock-absorbing air cushion 220 and increase the service life of the shock-absorbing air cushion 220.

[0049] Furthermore, a buffer seat 231 is disposed at one end of the return spring 230 , and one end of the buffer seat 231 is disposed outside the main pipe 100 , and the other end is disposed at one end of the return spring 230 .

[0050] Beneficial effect: The buffer seat 231 can prevent the return spring 230 from applying elastic force to the main pipe material 100 and thereby damaging the pipe wall of the main pipe material 100 .

[0051] In the above embodiment, in order to facilitate the release vent 221 to restore its original shape and enable the shock-absorbing air cushion 220 to produce a better shock-absorbing effect through the release vent 221, in a possible embodiment, the release vent 221 is a tapered opening of the shock-absorbing air cushion 220 from the inside to the outside.

[0052] Beneficial effect: When the shock-absorbing air cushion 220 is in shock-absorbing effect, the channel through which the gas through the gradually shrinking opening can lead to the outside world becomes narrower and narrower, thereby increasing the flow rate of the outflowing gas, making the unit gas produce greater kinetic energy, and enabling the unit gas to buffer greater vibration energy, thereby achieving a better shock-absorbing effect; when inhaling to restore the shape, on the contrary, the channel through which the incoming gas leads to the shock-absorbing air cushion 220 becomes wider and wider, which can reduce the outward pressure on the gas and promote the entry of gas, thereby achieving a better reset and recovery effect.

[0053] Furthermore, the exhaust port 221 is provided with an air-solid screen 222 .

[0054] Beneficial effect: The gas-solid screen 222 can prevent solids from passing through the gas-solid screen 222 while allowing gas to pass through the gas-solid screen 222, thereby preventing underground soil and dust from entering the shock-absorbing air cushion 220 and affecting the shock-absorbing effect and return effect of the shock-absorbing air cushion 220.

[0055] Furthermore, the shock-absorbing tube shell 210 includes a mounting layer 211, and the mounting layer 211 is arranged outside the shock-absorbing air cushion 220. Beneficial effect: It is used to support the shock-absorbing air cushion 220 and provide a supporting structure.

[0056] Furthermore, the shock-absorbing tube shell 210 further includes a shock-isolating pad layer 212, and the shock-isolating pad layer 212 is arranged outside the mounting layer 211. Beneficial effect: Before the vibration is transmitted to the shock-absorbing tube shell 210, the shock-isolating pad layer 212 is used to perform a certain degree of shock isolation.

[0057] Furthermore, the main pipe 100 includes a polyethylene plastic pipe 110, a protective layer 120, a pressure-resistant layer 130, a reinforcement layer 140 and a weather-resistant layer 150 arranged in sequence from outside to inside. Beneficial effect: The strength, weather resistance and pressure resistance of the polyethylene plastic pipe 110 are further improved.

[0058] Furthermore, the inner circle of the earthquake-eliminating tube 310 is provided with a flexible protective layer 120, a flexible pressure-resistant layer 130, a flexible reinforcement layer 140 and a flexible weather-resistant layer 150 in sequence from the outside to the inside. Beneficial effect: The strength, weather resistance and pressure resistance of the interior of the earthquake-eliminating tube 310 are further improved, and in order to adapt to the deformation of the flexible hollow tube wall 311, the flexible material can be deformed accordingly.

[0059] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A seismic-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe, characterized in that: include: A plurality of main pipes, a plurality of shock absorbing structures and a plurality of shock absorbing pipes, wherein the plurality of main pipes are connected in sequence, the shock absorbing structures are arranged surrounding the main pipes, and adjacent main pipes are connected through the shock absorbing pipes; The shock absorbing structure comprises a shock absorbing tube shell and a shock absorbing air cushion, wherein the shock absorbing tube shell is arranged to surround the outside of the main pipe material, the shock absorbing air cushion is arranged between the main pipe material and the shock absorbing structure, and the shock absorbing air cushion is provided with a force release port; The shock-absorbing connecting pipe comprises a shock-absorbing pipe and joints arranged at both ends of the shock-absorbing pipe. The shock-absorbing pipe comprises a flexible hollow pipe wall and composite polyethylene particles. The cavity of the flexible hollow pipe wall is filled with the composite polyethylene particles.

2. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1 is characterized in that: There are a plurality of shock absorbing air cushions, which are evenly distributed between the main pipe material and the shock absorbing pipe shell along the circumferential direction of the main pipe material.

3. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1 is characterized in that: The shock absorbing structure also includes a plurality of return springs, one end of which is arranged on the outside of the main pipe material, and the other end of which is arranged on the inside of the shock absorbing tube shell.

4. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 3 is characterized in that: The plurality of return springs are arranged around the shock absorbing air cushion and are evenly distributed around the shock absorbing air cushion.

5. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 3 is characterized in that: A buffer seat is arranged at one end of the return spring, and one end of the buffer seat is arranged outside the main pipe.

6. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1 is characterized in that: The exhaust port is a gradually shrinking opening of the shock absorbing air cushion from the inside to the outside.

7. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1 is characterized in that: The exhaust port is provided with an air-solid screen.

8. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1 is characterized in that: The shock-absorbing tube shell comprises a mounting layer and a shock-isolating cushion layer. The mounting layer is arranged on the outside of the shock-absorbing air cushion, and the shock-isolating cushion layer is arranged on the outside of the mounting layer.

9. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1, characterized in that: The main pipe material comprises a polyethylene plastic pipe, a protective layer, a pressure-resistant layer, a reinforcement layer and a weather-resistant layer which are arranged in sequence from the outside to the inside.

10. The earthquake-resistant large-diameter high-pressure steel wire mesh reinforced polyethylene composite pipe according to claim 1, characterized in that: The inner ring of the seismic pipe is provided with a flexible protective layer, a flexible pressure-resistant layer, a flexible reinforcement layer and a flexible weather-resistant layer in sequence from the outside to the inside.

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