Electric melting pipe fitting integrated with low-temperature-resistant intelligent material

Abstract

The invention relates to the related technical field of electrofusion pipe fittings, and discloses an electrofusion pipe fitting integrated with a low-temperature-resistant intelligent material, the electrofusion pipe fitting comprises a pipe fitting shell and a cleaning assembly, the outer side surface of the pipe fitting shell is provided with a direct current plug-in used for splicing an external pipeline, and the direct current plug-in is internally provided with a conducting rod used for connecting direct current; the top of the direct-current plug-in unit is provided with a sealing pad used for protecting a conducting rod, and the left side and the right side of the pipe fitting shell are provided with a first pipeline and a second pipeline correspondingly, the electromagnets on the second air bag and the third air bag are used for releasing magnetic attraction force to the iron blocks, so that the electromagnets are attached to the oppositely-arranged iron blocks; in this way, the second air bag and the third air bag are both in a pressed state, the purpose of conveying air to the first air bag is achieved, when the first air bag is in an expanded state, the extrusion force between the scraper and the outer side surface of the first pipeline can be increased, and ice adhering to the outer side of the first pipeline can be conveniently scraped and cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field related to electric fusion pipe fittings, and in particular to an electric fusion pipe fitting incorporating low-temperature resistant intelligent materials. Background Art

[0002] Electrofusion fittings are indispensable connecting components in gas transmission pipeline systems. They play a key role in natural gas or liquefied petroleum gas transmission pipelines, such as in the laying of branch lines in urban gas pipeline networks and the connection of user access pipelines. They can tightly connect gas PE pipelines of different diameters to ensure safe and efficient transportation of gas in pipelines. Gas leakage can cause serious safety accidents. The good sealing and reliability of electrofusion fittings can effectively prevent gas leakage and ensure the gas safety of residents and industrial users.

[0003] Chinese patent application number 201920226559.4 discloses an electric fusion pipe fitting that prevents low-temperature freezing and cracking, which belongs to the technical field of electric fusion pipe fittings, and includes a pipe fitting body, the inner wall of the pipe fitting body is fixedly connected to a metal layer, a connecting plate is fixedly connected to the metal layer, a rotating shaft is passed through the surface of the connecting plate through a bearing, a pulp plate is fixedly connected to the surface of the rotating shaft, a metal plate is fixedly connected to the surface of the pulp plate, the metal plate is slidably connected to the surface of the metal layer, a sound insulation layer is fixedly connected to the surface of the pipe fitting body, through the metal plate and the metal layer, the metal plate and the metal layer are made of stainless steel, and have the characteristics of fast thermal conductivity. At the same time, the friction area between the metal plate and the metal layer is large, which can not only heat the water but also heat the pipe fitting body.

[0004] According to the above-mentioned prior art, when electric fusion pipe fittings are used to transport gas in winter, due to the low outdoor temperature, ice will form on the outer surface of the electric fusion pipe fittings. If the ice on the outer side of the electric fusion pipe fittings is not handled in time, the electric fusion pipe fittings will shrink and deform, and eventually cause pipe cracks or bursts. In this state, even if the heat generated by the friction between the pulp plate and the metal plate in the above-mentioned prior art is used, it cannot be effectively distributed to the entire electric fusion pipe fitting. In addition, if ice exists on the outer side of the electric fusion pipe fittings, the heat generated by friction alone will be lost quickly, and the purpose of cold resistance cannot be achieved.

[0005] Therefore, it is necessary to solve the above problems by using an electric fusion pipe fitting incorporating low-temperature resistant smart materials. Summary of the invention

[0006] The object of the present invention is to provide an electric fusion pipe fitting incorporating low temperature resistant intelligent materials to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: an electric fusion pipe fitting incorporating low temperature resistant intelligent materials, comprising a pipe fitting shell and a cleaning assembly, wherein the outer surface of the pipe fitting shell is provided with a DC plug-in for splicing an external pipeline, and the DC plug-in is provided with a conductive rod for connecting direct current inside, and a sealing pad for protecting the conductive rod is provided on the top of the DC plug-in; A first pipe and a second pipe are respectively provided on the left and right sides of the pipe shell, and the first pipe and the second pipe are used to splice into a pair of gas delivery pipes. The ends of the first pipe and the second pipe are both provided with a cleaning assembly, and the cleaning assembly includes a sliding ring and an arc-shaped air bag, and the interior of the sliding ring is connected to the outer surface of the arc-shaped air bag.

[0008] Preferably, the arc-shaped airbag includes a first airbag, a second airbag and a third airbag, the first airbag, the second airbag and the third airbag are spliced ​​with each other, and air valves are provided at the splicing points of the first airbag, the second airbag and the third airbag, and the first airbag, the second airbag and the third airbag are interconnected through the air valves, and the three air valves contain pressure sensors inside, and the first airbag, the second airbag and the third airbag are respectively provided with electromagnets and iron blocks on the left and right sides, and the electromagnets and iron blocks are distributed in a mirror image.

[0009] Preferably, the outer surfaces of the first pipe and the second pipe are both provided with limit blocks in a circumferential array, and the outer sides of the limit blocks are provided with electromagnetic slide rails, and the electromagnetic slide rails are connected to the inner side of the slide ring through the second electromagnetic slider; A accommodating bin is provided inside the limit block, and collecting pipes connected to the accommodating bin are equidistantly provided on both sides of the limit block. An electrically controlled valve is provided inside each collecting pipe. Electric springs are provided at both ends of the accommodating bin, and an extrusion plate is provided away from the end face of the accommodating bin. The electric spring is used to apply thrust to the extrusion plate, and the outer edge of the extrusion plate is in contact with the inner wall of the accommodating bin.

[0010] Preferably, an electric spring is provided inside the accommodating bin, and an extrusion plate is provided at the end of the electric spring away from the inner wall of the accommodating bin, the electric spring is used to apply thrust to the extrusion plate, and the outer edge of the extrusion plate is in contact with the inner wall of the accommodating bin.

[0011] Preferably, a push rod is provided on the side of the first air bag, the second air bag and the third air bag away from the sliding ring, and a guide plate is provided on the end of the three push rods away from the first air bag, the second air bag and the third air bag, and a cleaning scraper is provided on the side of the three guide plates away from the push rod, and the three cleaning scrapers are set to rubber material.

[0012] Preferably, a thermistor is provided inside the pipe shell, and the thermistor is arranged in a circular ring shape, the outer side of the thermistor is in contact with the inner wall of the pipe shell, an electromagnetic slider is provided on the outer side of the thermistor, and the electromagnetic slider is arranged on the inner wall of the pipe shell through a second electrically controlled slide rail, and the electromagnetic slider is used to make the thermistor slide on the inner wall of the pipe shell through the second electrically controlled slide rail.

[0013] Preferably, when the arc-shaped airbag is in a working state, when the low temperature point corresponds to any one of the first airbag, the second airbag and the third airbag, the electromagnets and iron blocks on the other two airbags squeeze each other to output gas into the airbag corresponding to the low temperature point, and the airbag corresponding to the low temperature point is in an expanded state.

[0014] Preferably, an electric heating wire is provided inside the pipe outer shell, and the electric heating wire is interconnected with the conductive rod. The electric heating wire is arranged in a ring shape and embedded in the inside of the pipe outer shell. The number of the electric heating wires is set to two, and the two electric heating wires are symmetrically arranged at the left and right ends of the pipe outer shell, and insulating material is provided at the connection between the electric heating wire and the conductive rod.

[0015] Technical effects and advantages of the present invention: 1. The present invention arranges the first air bag, the second air bag, the third air bag and other related components, and utilizes the electromagnets on the second air bag and the third air bag to release the magnetic attraction force on the iron block, so that the electromagnets and the relatively arranged iron blocks fit each other, so that the second air bag and the third air bag are both in a pressurized state, thereby achieving the purpose of conveying gas to the first air bag, and when the first air bag is in an expanded state, the squeezing force between the scraper and the outer surface of the first pipe is increased, which is convenient for scraping and cleaning the ice adhered to the outer side of the first pipe.

[0016] 2. The present invention sets a limit block, an electric control slider, a containing bin and other components to cooperate with each other. When the temperature difference between the inside and outside of the first pipe and the second pipe is large, condensation will occur on the outside of the first pipe and the second pipe. Then, a scraper is used to cooperate with the containing bin to collect water droplets on the outside of the first pipe and the second pipe and store them inside the containing bin. Then, a thermistor is used to heat the bottom of the containing bin, and the sliding ring is controlled to move inside the electric control slide rail. When it moves to the relative area of ​​the containing bin, the electric control valve is controlled to spray water to the outside, and the water flows in a flat shape on the surface of the first pipe and the second pipe under the guidance of the scraper and the guide plate, thereby increasing the overall temperature of the first pipe and the second pipe and enhancing the anti-low temperature effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view of the overall structure of the present invention; Figure 3It is a schematic diagram of the sliding ring and related structures of the present invention; Figure 4 It is a schematic diagram of the structural distribution of the first airbag, the second airbag and the third airbag in the arc-shaped airbag of the present invention; Figure 5 This is a schematic diagram of the DC plug-in and related structures of the present invention; Figure 6 It is a schematic diagram of the assembly of the limit block and related structures of the present invention; Figure 7 It is a schematic diagram of the assembly of the electric spring and the extruded plate structure of the present invention; Figure 8 It is a schematic diagram of the overall structure of the present invention in an open state; Fig. 9 It is a schematic diagram of the structural distribution of the electromagnet and the iron block of the present invention.

[0018] In the figure: 1. pipe housing; 101. DC plug-in; 102. conductive rod; 103. first pipeline; 104. second pipeline; 105. thermistor; 2. cleaning assembly; 201. sliding ring; 202. arc-shaped air bag; 2021. first air bag; 2022. second air bag; 2023. third air bag; 203. push rod; 204. guide plate; 205. air valve; 206. limit block; 207. electromagnetic slide rail; 208. containing chamber; 209. electric control valve; 210. scraper; 211. electric spring; 212. extrusion plate; 213. electromagnet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The present invention provides Figures 1 to 9 An electric fusion pipe fitting incorporating low-temperature resistant intelligent materials is shown, comprising a pipe fitting shell 1 and a cleaning assembly 2, wherein the outer surface of the pipe fitting shell 1 is provided with a DC plug-in 101 for splicing an external pipeline, and the interior of the DC plug-in 101 is provided with a conductive rod 102 for connecting direct current, and the top of the DC plug-in 101 is provided with a closing pad for protecting the conductive rod 102, and the left and right sides of the pipe fitting shell 1 are respectively provided with a first pipeline 103 and a second pipeline 104, and the first pipeline 103 and the second pipeline 104 are used for splicing paired gas delivery pipes, and the ends of the first pipeline 103 and the second pipeline 104 are both provided with a cleaning assembly 2, and the cleaning assembly 2 comprises a sliding ring 201 and an arc-shaped air bag 202, and the interior of the sliding ring 201 is connected to the outer surface of the arc-shaped air bag 202.

[0021] like Figure 8 As shown, a thermistor 105 is provided inside the pipe housing 1, and the thermistor 105 is arranged in a circular ring shape, the outer side of the thermistor 105 is in contact with the inner wall of the pipe housing 1, an electromagnetic slider is provided on the outer side of the thermistor 105, and the electromagnetic slider is slidably connected to the inner wall of the pipe housing 1, and the electromagnetic slider is used to slide the thermistor 105 on the inner wall of the pipe housing 1 through a second electrically controlled slide rail, an electric heating wire is provided inside the pipe housing 1, and the electric heating wire is connected to the conductive rod 102, the electric heating wire is arranged in a ring shape, and the electric heating wire is embedded in the pipe housing 1, the number of the electric heating wires is set to two, and the two electric heating wires are symmetrically arranged at the left and right ends of the pipe housing 1, and an insulating material is provided at the connection between the electric heating wire and the conductive rod 102.

[0022] When in use, by transmitting current to the thermistor 105, when the current passes through the thermistor 105, the thermistor 105 will generate corresponding heat, thereby achieving heat release inside the pipe housing 1, the first pipe 103 and the second pipe 104. In addition, the annular thermistor 105 uses the electromagnetic slider and the second electric control slide rail to slide inside the pipe housing 1, the first pipe 103 and the second pipe 104 to achieve heat release to different areas, thereby improving the low temperature resistance of the pipe housing 1, the first pipe 103 and the second pipe 104. In addition, when more pipes need to be spliced, when direct current is connected through the cooperation of the conductive rod 102 and the DC plug-in 101, the electric heating wire generates high-temperature heat, and the heat generated by the electric heating wire is used to melt the plastic coated on the surface of the electric heating wire, so that the inner wall of the pipe housing 1 and the spliced ​​pipes are adhered to each other, thereby achieving a high-strength welding effect.

[0023] It should be noted that the electric heating wire needs to cooperate with the DC plug-in 101 and the conductive rod 102 to generate high temperature so that the first pipe 103 and the second pipe 104 can be spliced ​​respectively. After the splicing is completed, the electric heating wire will no longer be used. The welding process is a mature existing technology and will not be described here.

[0024] like Figure 3-Figure 4As shown, the arc-shaped air bag 202 includes a first air bag 2021, a second air bag 2022 and a third air bag 2023, and the ends of the first air bag 2021, the second air bag 2022 and the third air bag 2023 are interconnected through an air valve 205, and the interiors of the three air valves 205 all contain pressure sensors. The left and right sides of the first air bag 2021, the second air bag 2022 and the third air bag 2023 are respectively provided with an electromagnet 213 and an iron block, and the electromagnet 213 and the iron block are arranged opposite to each other. The inner circumferences of the first air bag 2021, the second air bag 2022 and the third air bag 2023 are all provided with a push rod 203, and the three The ends of the push rod 203 away from the first air bag 2021, the second air bag 2022 and the third air bag 2023 are each provided with a guide plate 204, and the three guide plates 204 are each provided with a cleaning scraper 210 on one side away from the push rod 203. The three cleaning scrapers 210 are made of rubber material. When the arc-shaped air bag 202 is in working state, when the low temperature point corresponds to any one of the first air bag 2021, the second air bag 2022 and the third air bag 2023, the electromagnets 213 and the iron blocks on the other two air bags squeeze each other to output gas into the air bag corresponding to the low temperature point, and the air bag corresponding to the low temperature point is in an expanded state.

[0025] When in use, three air valves 205 are set to control the mutual transmission of gases in the first air bag 2021, the second air bag 2022 and the third air bag 2023, so that the expansion degree of the first air bag 2021, the second air bag 2022 and the third air bag 2023 can be arbitrarily controlled according to needs.

[0026] The outer surfaces of the first pipe 103 and the second pipe 104 are both provided with limit blocks 206 in a circumferential array, the outer part of the limit block 206 is provided with an electromagnetic slide rail 207, and the electromagnetic slide rail 207 is connected to the inner side of the sliding ring 201 through the second electromagnetic slider, and a accommodating bin 208 is provided inside the limit block 206, and collecting pipelines connected to the accommodating bin 208 are equidistantly provided on both sides of the limit block 206, and each collecting pipeline is provided with an electric-controlled valve 209, and electric springs 211 are provided at both ends of the accommodating bin 208, and an extrusion plate 212 is provided at the end face of the electric spring 211 away from the accommodating bin 208, and the electric spring 211 is used to apply thrust to the extrusion plate 212, and the outer edge of the extrusion plate 212 is in contact with the inner wall of the accommodating bin 208.

[0027] When in use, the water generated on the outer surfaces of the first pipe 103 and the second pipe 104 is collected by cooperating with the receiving bin 208 and the opened electrically controlled valve 209, and then the electrically controlled valve 209 is closed to store the collected water inside the receiving bin 208. In addition, the extrusion plate 212 is driven to move inside the receiving bin 208 by the electric spring 211 when it is energized and contracted and de-energized and extended. Since the extrusion plate 212 fits tightly with the inside of the receiving bin 208, when the extrusion plates 212 at both ends of the receiving bin 208 move toward each other, the pressure inside the receiving bin 208 will increase, thereby cooperating with the opening of the electrically controlled valve 209 to spray the water in the receiving bin 208 outward through the collection pipeline.

[0028] It should be noted that when the electric spring 211 is connected to a power source, it is similar to an energized solenoid. Each turn of the spring is equivalent to a circular current. Since the current direction in each turn of the spring is the same, currents in the same direction attract each other, and therefore each turn of the spring attracts the adjacent spring, so the electric spring 211 contracts as a whole when powered on.

[0029] During use, first, when assembling and splicing additional pipes, no gas or liquid is transported in the first pipe 103 and the second pipe 104. At this time, the pipes to be spliced ​​are respectively inserted from the ends of the first pipe 103 and the second pipe 104 toward the pipe housing 1. Then, when the spliced ​​pipe is inserted into the interior of the pipe housing 1, the DC plug-in 101 is connected to the DC power so that the current is transmitted to the electric heating wire in the pipe housing 1 through the conductive part. When the electric heating wire receives the DC power, a large amount of heat energy is generated, which melts the plastic coated on the surface of the electric heating wire, and the melted plastic adheres to the outer wall of the spliced ​​pipe, thereby completing the work of the spliced ​​pipe.

[0030] Since the pipe housing 1 needs to ensure the temperature of the first pipe 103 and the second pipe 104 during use in winter to prevent the service life of the first pipe 103 and the second pipe 104 from being shortened due to excessively low temperature, an electromagnetic slider is used to control the thermistor 105 to move in the first pipe 103 and the second pipe 104 respectively, and detect temperature data during the movement.

[0031] When it is detected that the temperature in the first pipe 103 is lower than a preset value, the electromagnetic slide rail 207 outside the first pipe 103 is controlled to make the sliding ring 201 move along the outer surface of the first pipe 103. During the movement, the scrapers under the first air bag 2021, the second air bag 2022 and the third air bag 2023 always keep in contact with the outer side of the first pipe 103. In this way, the pressure sensor in the air valve 205 is used to detect the pressure values ​​in the first air bag 2021, the second air bag 2022 and the third air bag 2023 respectively. When the bag 2021, the second air bag 2022 and the third air bag 2023 pass by the foreign object, the foreign object will squeeze the first air bag 2021, the second air bag 2022 and the third air bag 2023. Therefore, the change in pressure value is detected by the pressure sensor to determine whether there is foreign matter on the surface of the first pipe 103 or the second pipe 104. The position of the foreign matter is obtained by the pressure value, and then the thermistor 105 is controlled by the electromagnetic slider to move to the position of the foreign matter. The temperature around the foreign matter is measured to be much higher than the temperature at the position of the foreign matter, then the foreign matter is determined to be ice.

[0032] When it is determined that there is ice on the outside of the first pipe 103 and the ice is below the first air bag 2021, the electromagnets 213 on the surfaces of the second air bag 2022 and the third air bag 2023 are controlled to release the suction on the iron block, so that the second air bag 2022 and the third air bag 2023 are both in an extruded state, and the gas inside the second air bag 2022 and the third air bag 2023 is transported to the inside of the first air bag 2021, so that the first air bag 2021 is in an expanded state. In this state, the scraper at the bottom of the first air bag 2021 will fit more closely to the outside of the first pipe 103, thereby increasing the pressure of the scraper 210 on the outside of the first pipe 103, and then the sliding ring 201 is used again to repeatedly scrape the ice on the outside of the first pipe 103, thereby achieving the purpose of cleaning the ice on the outside of the first pipe 103.

[0033] It is worth noting that the outer sides of the circuits in the thermistor 105 are covered with insulating materials to prevent the thermistor 105 from reacting with the gas when working and causing safety hazards. In addition, protective materials are provided at the edges of the second electric control rails inside the first pipeline 103 and the second pipeline 104 to prevent the friction generated during movement from reacting with the transported gas and causing safety hazards. Therefore, when the thermistor 105 is normally controlled to move on the second electric control rail and when current passes through the thermistor 105 and it is in a heating state, it will not react with the gas in the transportation process to ensure that it works in a safe environment.

[0034] After the above adjustment scheme, if it is still determined that there is ice, it means that there is still ice remaining on the outside of the first pipe 103. At this time, the electromagnets 213 on the second air bag 2022 and the third air bag 2023 are controlled to quickly generate suction and repulsion on the iron block, so that the second air bag 2022 and the third air bag 2023 are frequently subjected to squeezing force due to the magnetic force of the electromagnet 213 and the iron block, and the air valves 205 at the connection between the second air bag 2022 and the third air bag 2023 and the first air bag 2021 are opened respectively, and the second air bag 2022 and the third air bag 2023 will frequently and repeatedly transport the internal gas to the inside of the first air bag 2021, and the first air bag 2021 will frequently switch between the expansion and the initial state. When the first air bag 2021 is in expansion, the scraper is made to knock on the ice. In this state, the scraper under the first air bag 2021 is cooperated to achieve the purpose of crushing the residual ice remaining on the outside of the first pipe 103.

[0035] When it is detected that the temperature in the first pipe 103 is lower than the preset value, and no ice is determined to exist, it means that the external temperature is low. At this time, due to the temperature difference between the inside and outside of the first pipe 103 and the second pipe 104, condensation will occur on the outside of the first pipe 103 and the second pipe 104. At this time, the electromagnetic slide rail 207 respectively moves the sliding rings 201 on the first pipe 103 and the second pipe 104 toward each other on the surface of the first pipe 103 and the second pipe 104, and the scraper 210 is used to scrape the water droplets on the outside of the first pipe 103 and the second pipe 104 and guide the water droplets to gather and flow to the limit block. 206, at this time, the electric control valve 209 is controlled to open and the water on the limit block 206 is collected into the storage bin 208 through the collection pipeline. The reason for collecting the water on the surface of the first pipe 103 and the second pipe 104 is to prevent the water from adhering to the outside of the first pipe 103 and the second pipe 104 for a long time, which will cause ice when the external temperature is low. Therefore, it is necessary to collect the water on the first pipe 103 and the second pipe 104. Since both sides of the inner wall of the storage bin 208 are provided with arrays of collection pipes, the electric control valve 209 facing downward in the storage bin 208 is controlled to be closed during the process of collecting water drops. The upward electric control valve 209 of the storage bin 208 is set to an open state, so that water can be stored in the storage bin 208. Then, the electromagnetic slider is controlled to move the thermistor 105 to the bottom of the storage bin 208 and heat the bottom of the storage bin 208. During the heating process, the electric control valves 209 in the storage bin 208 are all set to a closed state. After the heating is completed, the sliding ring 201 is controlled to slide along the surface of the first pipe 103 and the second pipe 104. When the sliding ring 201 moves to the collection pipe set on the storage bin 208, the electric control valve 209 at the corresponding position is immediately opened, and the electric spring 201 is pressed. 11 is powered off to extend the electric spring 211, and then the heated water in the accommodating chamber 208 is squeezed by the electric spring 211 and the squeezing plate 212, and is ejected outward in a columnar shape. After the ejected water contacts the scraper and the guide plate 204, it flows along an arc. After the ejected water is ejected, it surrounds the outside of the first pipe 103 under the guidance of the arc surface of the scraper and the guide plate 204, heats up the low-temperature points on the outside of the first pipe, and controls the sliding ring 201 to continue to move, and so on, thereby realizing the heating of the low-temperature points on the outside of the first pipe 103 one by one, and realizing the anti-low-temperature effect of the first pipe 103 and the second pipe 104.

[0036] It is worth noting that: when the sliding ring 201 and the cleaning scraper are used to collect dew, the electric spring 211 is always energized, so that the electric spring 211 is in a contracted state and stores the collected water inside the storage bin 208. Then, when water is sprayed to the outside, the electric spring 211 is in a de-energized state, and the electric spring 211 will extend toward the extrusion plate 212 and push the extrusion plate 212 to squeeze the water to the outside. In addition, the storage bin 208 is extended to the inner wall of the pipe housing 1, so that the bottom of the storage bin 208 is directly heated by the thermistor 105, thereby transferring heat to the water inside the storage bin 208.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric fusion pipe fitting incorporating a low-temperature resistant intelligent material, comprising a pipe fitting housing (1) and a cleaning component (2), characterized in that: The outer surface of the pipe fitting housing (1) is provided with a DC plug (101) for splicing an external pipe, and the interior of the DC plug (101) is provided with a conductive rod (102) for connecting direct current, and the top of the DC plug (101) is provided with a sealing pad for protecting the conductive rod (102); A first pipe (103) and a second pipe (104) are respectively provided on the left and right sides of the pipe housing (1), and the first pipe (103) and the second pipe (104) are used to splice into a pair of gas transmission pipes, and the ends of the first pipe (103) and the second pipe (104) are both provided with a cleaning assembly (2), and the cleaning assembly (2) comprises a sliding ring (201) and an arc-shaped air bag (202), and the interior of the sliding ring (201) and the outer surface of the arc-shaped air bag (202) are connected to each other.

2. The electric fusion pipe fitting incorporating low temperature resistant intelligent materials according to claim 1 is characterized in that: The arc-shaped air bag (202) comprises a first air bag (2021), a second air bag (2022) and a third air bag (2023); the first air bag (2021), the second air bag (2022) and the third air bag (2023) are spliced ​​with each other; air valves (205) are provided at the splicing positions of the first air bag (2021), the second air bag (2022) and the third air bag (2023); the first air bag (2021), the second air bag (2022) and the third air bag (2023) are connected with each other through the air valves (205); pressure sensors are contained inside the three air valves (205); electromagnets (213) and iron blocks are provided on the left and right sides of the first air bag (2021), the second air bag (2022) and the third air bag (2023), respectively; the electromagnets (213) and the iron blocks are distributed in a mirror image.

3. The electric fusion pipe fitting incorporating low temperature resistant intelligent material according to claim 2 is characterized in that: The outer surfaces of the first pipe (103) and the second pipe (104) are both provided with limit blocks (206) in a circumferential array, the outer surfaces of the limit blocks (206) are provided with electromagnetic slide rails (207), and the electromagnetic slide rails (207) are connected to the inner side of the sliding ring (201) via a second electromagnetic slider; A containing chamber (208) is provided inside the limit block (206), and collecting pipelines connected to the containing chamber (208) are equidistantly provided on both sides of the limit block (206), and each collecting pipeline is provided with an electrically controlled valve (209). Electric springs (211) are provided at both ends of the containing chamber (208), and an extrusion plate (212) is provided on the end surface of the electric spring (211) away from the containing chamber (208). The electric spring (211) is used to apply a thrust to the extrusion plate (212), and the outer edge of the extrusion plate (212) is in contact with the inner wall of the containing chamber (208).

4. The electric fusion pipe fitting incorporating low temperature resistant intelligent material according to claim 3 is characterized in that: An electric spring (211) is provided inside the accommodating bin (208), and an extrusion plate (212) is provided at the end of the electric spring (211) away from the inner wall of the accommodating bin (208), the electric spring (211) is used to apply a thrust to the extrusion plate (212), and the outer edge of the extrusion plate (212) is in contact with the inner wall of the accommodating bin (208).

5. The electric fusion pipe fitting incorporating low temperature resistant intelligent material according to claim 2 is characterized in that: A push rod (203) is provided on the side of the first air bag (2021), the second air bag (2022) and the third air bag (2023) away from the sliding ring (201), and a guide plate (204) is provided on the end of the three push rods (203) away from the first air bag (2021), the second air bag (2022) and the third air bag (2023), and a cleaning scraper (210) is provided on the side of the three guide plates (204) away from the push rod (203), and the three cleaning scrapers (210) are made of rubber material.

6. The electric fusion pipe fitting incorporating low temperature resistant intelligent material according to claim 1, characterized in that: A thermistor (105) is provided inside the pipe housing (1), and the thermistor (105) is arranged in a circular ring shape. The outer side of the thermistor (105) is in contact with the inner wall of the pipe housing (1). An electromagnetic slider is provided on the outer side of the thermistor (105), and the electromagnetic slider is arranged on the inner wall of the pipe housing (1) via a second electrically controlled slide rail. The electromagnetic slider is used to make the thermistor (105) slide on the inner wall of the pipe housing (1) via the second electrically controlled slide rail.

7. The electric fusion pipe fitting incorporating low temperature resistant intelligent material according to claim 2 is characterized in that: When the arc-shaped air bag (202) is in a working state, when the low temperature point corresponds to any one of the first air bag (2021), the second air bag (222) and the third air bag (223), the electromagnet (213) and the iron block on the other two air bags squeeze each other to output gas into the air bag corresponding to the low temperature point, and the air bag corresponding to the low temperature point is in an expanded state.

8. The electric fusion pipe fitting incorporating low temperature resistant intelligent material according to claim 1 is characterized in that: An electric heating wire is provided inside the pipe fitting housing (1), and the electric heating wire is in communication with the conductive rod (102). The electric heating wire is arranged in a ring shape and is embedded in the pipe fitting housing (1). The number of the electric heating wires is two, and the two electric heating wires are symmetrically arranged at the left and right ends of the pipe fitting housing (1). An insulating material is provided at the connection between the electric heating wire and the conductive rod (102).

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