Pipe network rapid butt joint sealing device

Abstract

The application relates to the technical field of water supply pipe networks, and discloses a pipe network rapid butt joint sealing device, which comprises a base, a sealing assembly installed on the top of the base, and two sliding seats one. The sealing assembly comprises two hot pressing rings one and two installed on a hot pressing plate. The two hot pressing rings one and two respectively heat the two butt joint pipe network end portions, so that the two pipe network end portions respectively form outer conical and inner conical regions, the two pipe networks can be nested through the conical structure when butt joint, the molten pipe material deeply penetrates and fuses under extrusion, a stronger anti-pulling structure is formed, the problems of friction damage, leakage risk and inconvenience of later construction and maintenance caused by the turn-up edge are solved, the whole process control of pipe network positioning, heating, lamination and nested extrusion is realized, the sealing property and the structural stability of the conical butt joint are ensured, and the pipe cylinder can better adapt to pressure fluctuation and foundation settlement in operation.

Description

Technical Field

[0001] This invention relates to the field of water supply network technology, specifically to a quick-connect sealing device for water supply networks. Background Technology

[0002] In the field of municipal pipeline engineering and water supply networks, HDPE pipes are widely used in the construction of urban water supply and drainage systems due to their excellent corrosion resistance, outstanding flexibility, and good hydraulic properties. Among them, hot-melt welding is the core process for HDPE pipe joint connection. The principle is to use special hot-melt equipment to heat the pipe joint to a molten state, then quickly connect them and apply a certain pressure, so that the molten pipe molecules can penetrate and fuse with each other. After cooling, a sealed integral joint with excellent mechanical properties is formed. This connection method completely eliminates the risk of leakage at the pipe joint, effectively ensuring the safety and stability of the water supply process of the municipal pipeline network, and significantly improving the overall service life of the pipeline network. It is a key technical link in ensuring the quality of pipe connection in modern municipal pipeline engineering.

[0003] In the hot-melt welding process of HDPE pipes in municipal water supply networks, the following problems exist: On the one hand, after the HDPE pipe is heated, butted and pressure is applied to allow the molten pipe molecules to penetrate and fuse, it is necessary to wait for the joint to be completely cured in order to ensure the sealing performance and structural strength. The cooling time usually takes several minutes to tens of minutes, which seriously restricts the construction progress, especially in scenarios such as pipeline repair and emergency water supply that require rapid completion.

[0004] On the other hand, during the hot-melt welding process, a structural defect of raised flanges will be generated on the outer wall of the pipe. These raised flanges not only affect the flatness and aesthetics of the pipeline laying, but also easily cause friction and collision with the surrounding soil, other pipelines or structures. Long-term use may lead to flange damage and joint leakage. It will also increase the difficulty of the later construction of the external anti-corrosion layer and insulation treatment of the pipeline, and also hinder the operation of equipment during pipeline inspection and maintenance. Summary of the Invention

[0005] This invention provides a quick-connect sealing device for pipeline networks, which solves the problems of long cooling and curing time for joints, which restricts construction progress, and uneven laying, easy damage and leakage caused by the protrusion and flange on the outer wall of the pipe, as well as difficulties in subsequent construction and maintenance.

[0006] Technical solution

[0007] To shorten the curing time of HDPE pipe connections, improve construction efficiency, eliminate joint flange defects, and ensure sealing reliability, this invention achieves this through the following technical solution: a quick pipe network connection sealing device, including a base and a sealing component installed on the top of the base;

[0008] The sealing assembly includes two slide blocks, an annular mounting plate fixedly connected between the two slide blocks, an annular rotating plate rotatably connected through the annular mounting plates, a lower slide block slidably connected to the top of the annular rotating plate, a coating plate fixedly connected to the bottom of the lower slide block, a guide plate fixedly connected to the middle of one side of the coating plate, a pressure plate fixedly connected to one bottom side of the coating plate, and a compaction plate fixedly connected to one bottom side of the pressure plate. The combination of the coating plate, guide plate, pressure plate, and compaction plate is to achieve the flattening and compaction of the bulges on the outer wall of the pipe during the hot-melt welding process of the pipeline network.

[0009] The sealing assembly also includes two annular connecting plates and a rotating roller mounting bracket. Both annular mounting plates are fixedly connected to the bottom surface of the lower slider. The rotating roller mounting bracket is installed at the end of the annular connecting plate away from the lower slider. A rotating roller is rotatably connected to the middle of the rotating roller mounting bracket. The outer surface of the rotating roller is fixedly connected with evenly distributed semi-circular protrusions to achieve the formation of an arc-shaped reinforcing groove on the surface of the rubber layer after the outer wall of the pipe is flat and compacted.

[0010] Furthermore, a U-shaped mounting plate is fixedly connected to the outer surface of the annular rotating plate, and a bolt passes through and rotates through the middle of the U-shaped mounting plate. One end of the bolt passes through the U-shaped mounting plate and is threadedly connected to the lower slider to realize the lifting and lowering of the lower slider.

[0011] Furthermore, an output box is fixedly connected to one side of the top of one of the slide blocks, a rotating rod is rotatably connected to the inner cavity of the output box, a gear is fixedly connected to one side of the outer wall of the rotating rod, a bevel gear is fixedly connected to the middle of the outer wall of the rotating rod, a rotating rod is rotatably connected through the top of the output box, a bevel gear is fixedly connected to the bottom of the rotating rod, and the bevel gear meshes with the bevel gear, and a handwheel is fixedly connected to the top of the rotating rod.

[0012] Furthermore, a toothed ring is fixedly connected to one side of the outer wall of the annular rotating plate, and the toothed ring meshes with a gear.

[0013] Furthermore, mounting seats are fixedly connected to both sides of the top of the base, and two support rods are fixedly connected between the two mounting seats. Two sets of pipe clamps are slidably connected to both sides of the outer wall of the support rods, and each set of pipe clamps consists of two parts. One set of pipe clamps is fixedly connected to a slide block two. Two bidirectional lead screws are rotatably connected to the side of the two mounting seats away from the support rods, and the bidirectional lead screws are threadedly connected to the slide block two. An output motor is installed on one side of the top of the base, and the output end of the output motor drives the two bidirectional lead screws to rotate through a synchronous pulley and a synchronous belt.

[0014] Furthermore, the two slide blocks slide on the outer walls of the two support rods respectively.

[0015] Furthermore, an electric cylinder is installed on one side of the outer wall of the base, and a hot plate is installed on the top side of the electric cylinder.

[0016] Furthermore, a first heating ring is installed on one side of the outer wall of the heating plate, and the first heating ring is shaped such that one side of the inner cavity is set with an annular inclined angle. A second heating ring is installed on the side of the heating plate away from the first heating ring, and the second heating ring is shaped such that one side of the outer wall is set with an annular inclined angle.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention utilizes two heating rings installed on a heating plate to heat the ends of two mating pipe networks, creating outer and inner conical regions at the ends of the two networks respectively. This allows the two pipe networks to be mated through a nested conical structure, where the molten pipe material deeply penetrates and fuses under pressure, forming a stronger pull-out resistant structure. This completely solves the problems of friction damage, leakage risk, and inconvenience in later construction and maintenance caused by flanges. It achieves full control over pipe network positioning, heating and bonding, and nesting and pressing, ensuring the sealing and structural stability of the conical joint, allowing the pipe network to better adapt to pressure fluctuations and foundation settlement during operation.

[0019] This invention achieves efficient forming and strengthening of the sealing layer through a coating plate, a guide plate, a pressing plate, and a compaction plate mounted on a ring-shaped rotating plate, and a rotating roller and a semi-circular protrusion mounted on a rotating roller mounting frame. This improves construction efficiency and sealing reliability. The coating plate and guide plate evenly distribute and spread the liquefied rubber generated during pipeline connection. The pressing plate and compaction plate compact and shape the rubber in layers. In this process, the contact area between the rubber and air is increased, and the heat conduction is accelerated through the pressure, allowing the sealing layer to cool and solidify quickly, significantly shortening the waiting time of tens of minutes in traditional processes. Subsequently, the rotating roller and the semi-circular protrusion press out U-shaped reinforcing grooves on the sealing rubber layer, further enhancing the tensile and deformation resistance of the rubber layer, reducing the risk of cracking and delamination, and increasing the contact depth with the outer wall of the pipeline, strengthening the sealing tightness. This achieves a dual improvement in construction efficiency and long-term protection. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the electric cylinder of the present invention;

[0022] Figure 3 This is a schematic diagram of the annular mounting plate of the present invention;

[0023] Figure 4 This is a cross-sectional view of the annular mounting plate of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the coating plate, pressing plate, and compaction plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the guide plate of the present invention;

[0027] Figure 8 For the present invention Figure 3 Enlarged view at point B in the middle;

[0028] Figure 9 This is a side cross-sectional view of the hot ironing plate, hot ironing ring one, and hot ironing ring two of the present invention;

[0029] Figure 10 This is a cross-sectional view of the compaction state of the pipe network joints according to the present invention;

[0030] Figure 11 This is a cross-sectional view of the pipe network joint of the present invention.

[0031] In the diagram: 1. Base; 2. Slide 1; 201. Annular mounting plate; 202. Annular rotating plate; 203. Lower slider; 204. U-shaped mounting plate; 205. Bolt; 206. Coating plate; 207. Guide plate; 208. Pressing plate; 209. Compacting plate; 210. Annular connecting plate; 211. Rotating roller mounting frame; 212. Rotating roller; 213. Semi-circular protrusion; 3. Output box; 301. Rotating rod 1; 302. Gear; 303. Gear ring; 304. Bevel gear 1; 305. Rotating rod 2; 306. Bevel gear 3; 307. Handwheel; 4. Mounting seat; 401. Support rod; 402. Pipe clamp; 403. Slide 2; 404. Output motor; 405. Bidirectional lead screw; 5. Electric cylinder; 501. Hot stamping plate; 502. Hot stamping ring 1; 503. Hot stamping ring 2. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example

[0034] Please see Figures 1 to 11In this embodiment of the invention, a quick pipe network connection sealing device is provided by the present invention. The present invention uses a hot-heating ring 502 and a hot-heating ring 503 installed on a hot-heating plate to heat the ends of two pipe networks to be connected, so that the ends of the two pipe networks form an outer conical and an inner conical area respectively. When the two pipe networks are connected, the conical structure can be nested, and the molten pipe material can be deeply penetrated and fused under extrusion, forming a stronger anti-pull-out structure. This completely solves the problems of friction damage, leakage risk and inconvenience of later construction and maintenance caused by flanges. It realizes the full control of pipe network positioning, heating and bonding and nesting extrusion, ensuring the sealing performance and structural stability of the conical connection, and allowing the pipe network to better adapt to pressure fluctuations and foundation settlement during operation.

[0035] This invention achieves efficient forming and strengthening of the sealing layer through the application plate 206, guide plate 207, pressure plate 208, and compaction plate 209 installed on the annular rotating plate 202, and the rotating roller 212 and semi-circular protrusion 213 installed on the rotating roller mounting frame 211. This improves construction efficiency and sealing reliability. The application plate 206 and guide plate 207 evenly distribute and spread the liquefied rubber generated during pipeline connection. The pressure plate 208 and compaction plate 209 compact and shape the layer in layers. In this process, the contact area between the rubber and air is increased, and the heat conduction is accelerated through the pressure, allowing the sealing layer to cool and solidify quickly, which greatly shortens the waiting time of tens of minutes in the traditional process. Subsequently, the rotating roller 212 and semi-circular protrusion 213 press out U-shaped reinforcing grooves on the sealing rubber layer, further enhancing the tensile and deformation resistance of the rubber layer, reducing the risk of cracking and delamination, and increasing the contact depth with the outer wall of the pipeline, strengthening the sealing tightness, thus achieving a dual improvement in construction efficiency and long-term protection.

[0036] In terms of specific structural installation, the structural body can be constructed according to the inventive concept of this embodiment. In this embodiment, no special limitations are imposed.

[0037] In this embodiment, a quick-connect sealing device for pipelines includes a base 1 and a sealing assembly mounted on the top of the base 1.

[0038] The sealing assembly includes two slide blocks 2, an annular mounting plate 201 is fixedly connected between the two slide blocks 2, an annular rotating plate 202 is rotatably connected through the annular mounting plate 201, a lower slide block 203 is slidably connected to the top of the annular rotating plate 202, a coating plate 206 is fixedly connected to the bottom of the lower slide block 203, a guide plate 207 is fixedly connected to the middle of one side of the coating plate 206, a pressure plate 208 is fixedly connected to one bottom side of the coating plate 206, and a compaction plate 209 is fixedly connected to one bottom side of the pressure plate 208. The combination of the coating plate 206, the guide plate 207, the pressure plate 208, and the compaction plate 209 is to achieve the flattening and compaction of the bulges on the outer wall of the pipe during the hot-melt welding process of the pipeline network.

[0039] The function of the coating plate 206 is to evenly spread the liquefied rubber protrusions generated during pipeline connection, avoid local accumulation or uneven thickness, create a continuous and flat rubber base for subsequent compaction operations, and ensure that the sealing layer covers the entire area without missing any joint areas.

[0040] The function of the guide plate 207 is to guide the liquefied rubber to flow evenly towards the outer wall of the pipe on both sides, so that the rubber can naturally extend along the curvature of the pipe. This not only avoids the rubber overflowing randomly and causing material waste, but also allows the rubber layer to accurately cover the joint and the surrounding transition area, ensuring the continuity and regularity of the seal.

[0041] The function of the pressure plate 208 is to initially compact the spread rubber layer, focusing on squeezing out air bubbles and loose gaps in the rubber layer, while smoothing the surface and pressing the rubber layer to the preset thickness range, laying the foundation for subsequent enhanced compaction and initially improving the adhesion between the rubber and the outer wall of the pipe.

[0042] The function of the compaction plate 209 is to undertake the final reinforcement, compaction and shaping functions. Through greater pressure, the rubber molecules penetrate deeply into the molten layer of the outer wall of the pipe, so as to achieve a tight bond between the rubber and the pipe. At the same time, it presses the edge of the rubber layer to a state of natural transition with the outer wall of the pipe, completely eliminating the risk of warping and ensuring the long-term stability of the sealing structure.

[0043] The sealing assembly also includes two annular connecting plates 210 and a rotating roller mounting bracket 211. The two annular mounting plates 201 are fixedly connected to the bottom surface of the lower slider 203. The rotating roller mounting bracket 211 is installed at the end of the annular connecting plate 210 away from the lower slider 203. A rotating roller 212 is rotatably connected to the middle of the rotating roller mounting bracket 211. The outer surface of the rotating roller 212 is fixedly connected with evenly distributed semi-circular protrusions 213 to achieve the formation of an arc-shaped reinforcing groove on the surface of the rubber layer after the outer wall of the pipe is flat and compacted.

[0044] Among them, the function of the semi-circular protrusion 213 is to press out a U-shaped reinforcing groove on the formed rubber sealing layer, which enhances the tensile and deformation resistance of the rubber layer and reduces the risk of cracking and delamination of the rubber layer when the pipeline is subjected to external force or pressure fluctuations; at the same time, it increases the contact area and bonding depth between the rubber layer and the outer wall of the pipeline, further strengthening the sealing tightness.

[0045] A U-shaped mounting plate 204 is fixedly connected to the outer surface of the annular rotating plate 202. A bolt 205 passes through and rotates through the middle of the U-shaped mounting plate 204. One end of the bolt 205 passes through the U-shaped mounting plate 204 and is threadedly connected to the lower slider 203 to realize the lifting and lowering of the lower slider 203.

[0046] An output box 3 is fixedly connected to one side of the top of a slide block 2. A rotating rod 301 is rotatably connected to the inner cavity of the output box 3. A gear 302 is fixedly connected to one side of the outer wall of the rotating rod 301. A bevel gear 304 is fixedly connected to the middle of the outer wall of the rotating rod 301. A rotating rod 305 is rotatably connected through the top of the output box 3. A bevel gear 306 is fixedly connected to the bottom of the rotating rod 305, and the bevel gear 306 meshes with the bevel gear 304. A handwheel 307 is fixedly connected to the top of the rotating rod 305.

[0047] A toothed ring 303 is fixedly connected to one side of the outer wall of the annular rotating plate 202, and the toothed ring 303 is meshed with the gear 302.

[0048] Mounting seats 4 are fixedly connected to both sides of the top of the base 1. Two support rods 401 are fixedly connected between the two mounting seats 4. Two sets of pipe clamps 402 are slidably connected to both sides of the outer wall of the support rods 401. Each set of pipe clamps 402 is divided into two. One set of pipe clamps 402 is fixedly connected to a slide block 403. Two double-acting screws 405 are rotatably connected to the side of the two mounting seats 4 away from the support rods 401. The double-acting screws 405 are threadedly connected to the slide block 403. An output motor 404 is installed on one side of the top of the base 1. The output end of the output motor 404 drives the two double-acting screws 405 to rotate through a synchronous pulley and a synchronous belt.

[0049] Among them, the function of pipe clamp 402 is to fix the two ends of the pipeline to be spliced, ensure that the axes of the two pipes are aligned, avoid offset or tilting during the splicing process, provide a stable benchmark for subsequent hot forming and nesting extrusion, and ensure the splicing accuracy.

[0050] The two slide blocks 2 slide on the outer walls of the two support rods 401 respectively;

[0051] An electric cylinder 5 is installed on one side of the outer wall of the base 1, and a hot plate 501 is installed on the top side of the electric cylinder 5.

[0052] Among them, the electric cylinder 5 is used to drive the hot iron plate 501, the first hot iron ring 502 and the second hot iron ring 503 to move down smoothly as a whole and accurately insert them between the two pipe networks to be connected, so as to ensure the accurate relative position of the hot iron component and the end of the pipe, and provide a reference for subsequent conical heating and forming. The above structure belongs to the existing technology and will not be described in detail here.

[0053] A first heating ring 502 is installed on one side of the outer wall of the heating plate 501, and the shape of the first heating ring 502 is such that one side of the inner cavity is set with an annular inclined angle. A second heating ring 503 is installed on the side of the heating plate 501 away from the first heating ring 502, and the shape of the second heating ring 503 is such that one side of the outer wall is set with an annular inclined angle.

[0054] Specifically, the inner annular tilt angle of the heating ring 502 is used to heat the outer surface of the pipe network end, forming an outer conical structure; the outer annular tilt angle of the heating ring 503 is used to heat the inner cavity of the other pipe network end, forming an inner conical structure. The matching tilt angles of the two cones ensure that the heated pipe network ends can be precisely nested, replacing the traditional flat-end butt joint and significantly improving the fit and sealing of the joint.

[0055] When using the quick-connect sealing device for pipe networks in this embodiment, the pipe network is first placed between two sets of pipe clamps 402, aligning the two ends of the spliced ​​pipe network. The operator then presses down the electric cylinder 5, which simultaneously presses down the heating plate 501, heating ring one 502, and heating ring two 503 between the two pipe networks. The heating plate 501 is then activated for heating, simultaneously heating the heating ring one 502 and heating ring two 503. At this point, the output motor 404 is activated to rotate, and the synchronous pulley and synchronous belt installed at the output end of the output motor 404 drive two bidirectional lead screws 405. When rotated, the two sliding blocks 403 connected to the outer wall of the double-sided screw 405 will drive the two pipe clamps 402 to move closer to each other and fit together with the heated plate 501, heated ring 502 and heated ring 503. At this time, one pipe network will fit together with the heated plate 501 and the heated ring 502 installed on one side of the heated plate 501. At this time, the heated ring 502 will heat the outer surface of one pipe network in a conical shape. At this time, the other pipe network will fit together with the heated plate 501 and the heated ring 503 on one side of the heated plate 501. At this time, the heated ring 503 will be inserted into the inner cavity of the other pipe network and heated in a conical shape.

[0056] After heating is completed, the output motor 404 is turned on to move the two sets of pipe clamps 402 away from each other through the synchronous pulley and synchronous belt. When the two sets of pipe clamps 402 are moved away from each other, the two pipe networks 501 and the first heating ring 502 and the second heating ring 503 will be moved away from each other. At this time, the heating plate 501 is turned off, and the heating plate 501, the first heating ring 502 and the second heating ring 503 are reset by the electric cylinder 5.

[0057] At this point, slide block 2 and annular mounting plate 201 are moved to the middle position after the two pipe networks are heated. Then, the output motor 404 is turned on again, and the two bidirectional lead screws 405 are rotated through the synchronous pulley and synchronous belt. This causes the two sets of pipe clamps 402 to bring the heated pipe networks closer and squeeze each other. At this point, the pipe network end formed by the heating ring 502 is nested with the pipe network end formed by the heating ring 503. The molten pipe surfaces are tightly bonded by the extrusion. Combined with the subsequent compaction and reinforcement of the sealing components, rapid docking and sealing are achieved. Compared with the traditional flat-end docking, it has stronger pull-out resistance and structural stability, and can better adapt to the pressure in the operation of the pipe network.

[0058] Simultaneously, when the two pipelines approach and compress each other, a raised liquefied rubber will form on the mating surface. At this time, the slide block 2 and the annular mounting plate 201 are located on the outer side of this raised area. Turning the handwheel 307 causes the bevel gear 306 at the bottom of the rotating rod 2 305 to rotate and mesh with the bevel gear 304, causing the bevel gear 304 to rotate. When the bevel gear 304 rotates, it drives the rotating rod 301 and gear 302 to rotate simultaneously. At this time, gear 302 meshes with the gear ring 303, causing the gear ring 303 to rotate. The gear ring 303 then drives the annular rotating plate 202 to rotate. When the annular rotating plate 202 rotates, it drives the coating plate 206, guide plate 207, pressure plate 208, and compaction plate 209 installed at the bottom of the lower slide block 203 to rotate simultaneously, performing layering treatment and fixing on the raised liquefied rubber. The process involves several steps. First, the raised liquefied rubber is evenly spread and guided by the spreading plate 206 and the guide plate 207. The guide plate 207 then evenly distributes the liquefied rubber towards the outer walls of the pipes on both sides. Next, the spreading rubber layer is initially compacted by the pressing plate 208 to squeeze out air bubbles and smooth the surface. Finally, the compaction plate 209 further strengthens the compaction, allowing the rubber layer to deeply bond with the outer wall of the pipe and solidify its shape. During the spreading and compaction process, the contact area between the rubber and air is increased, and the pressure accelerates heat conduction, achieving rapid cooling and significantly shortening the curing time. The final formed rubber exhibits an annular curved surface sealing structure with outward bevels on both sides, greatly improving the sealing performance at the pipe network connection and achieving a long-lasting seal and protection with a neat appearance and stable structure.

[0059] When the sliding block 203 moves the coating plate 206, the guide plate 207, the pressing plate 208, and the compaction plate 209, it will simultaneously move the annular connecting plate 210, the rotating roller mounting bracket 211, the rotating roller 212, and the semi-circular protrusion 213. At this time, the rotating roller 212 and the semi-circular protrusion 213 will rotate on the outer wall of the finally formed rubber. The semi-circular protrusion 213 will press the formed rubber into a U-shaped reinforcing groove. This shape can enhance the tensile and deformation resistance of the rubber sealing layer, making the rubber layer less prone to cracking and delamination when the pipeline is subjected to pressure and external force, thus improving the durability of the sealing structure. At the same time, it increases the contact area and bonding depth between the rubber layer and the outer wall of the pipeline, further strengthening the tightness of the seal and reducing the risk of joint leakage. In addition, the regular U-shaped groove makes the appearance of the rubber layer easier to identify, making it convenient to quickly judge the integrity of the sealing structure during subsequent inspections.

[0060] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A quick-connect sealing device for pipeline networks, characterized in that: Includes a base (1) and a sealing assembly mounted on top of the base (1); The sealing assembly includes two slide blocks (2), an annular mounting plate (201) is fixedly connected between the two slide blocks (2), an annular rotating plate (202) is rotatably connected through the annular mounting plate (201), a lower slide block (203) is slidably connected to the top of the annular rotating plate (202), a coating plate (206) is fixedly connected to the bottom of the lower slide block (203), a guide plate (207) is fixedly connected to the middle of one side of the coating plate (206), a pressure plate (208) is fixedly connected to one side of the bottom of the coating plate (206), and a compaction plate (209) is fixedly connected to one side of the bottom of the pressure plate (208). The coating plate (206), the guide plate (207), the pressure plate (208) and the compaction plate (209) are combined to achieve the flattening and compaction of the bulge generated on the outer wall of the pipe during the hot melt welding process of the pipeline network. The sealing assembly also includes two annular connecting plates (210) and a rotating roller mounting bracket (211). The two annular mounting plates (201) are fixedly connected to the bottom surface of the lower slider (203). The rotating roller mounting bracket (211) is installed at the end of the annular connecting plate (210) away from the lower slider (203). A rotating roller (212) is rotatably connected to the middle of the rotating roller mounting bracket (211). The outer surface of the rotating roller (212) is fixedly connected with evenly distributed semi-circular protrusions (213) to achieve the formation of an arc-shaped reinforcing groove on the surface of the rubber layer after the outer wall of the pipe is flat and compacted. An output box (3) is fixedly connected to one side of the top of a slide block (2). A rotating rod (301) is rotatably connected to the inner cavity of the output box (3). A gear (302) is fixedly connected to one side of the outer wall of the rotating rod (301). A bevel gear (304) is fixedly connected to the middle of the outer wall of the rotating rod (301). A rotating rod (305) is rotatably connected through the top of the output box (3). A bevel gear (306) is fixedly connected to the bottom of the rotating rod (305), and the bevel gear (306) meshes with the bevel gear (304). A handwheel (307) is fixedly connected to the top of the rotating rod (305). A gear ring (303) is fixedly connected to one side of the outer wall of the annular rotating plate (202), and the gear ring (303) meshes with the gear (302). Both sides of the top of the base (1) are fixedly connected to... Mounting base (4), two support rods (401) are fixedly connected between the two mounting bases (4), two sets of pipe clamps (402) are slidably connected on both sides of the outer wall of the support rods (401), and each set of pipe clamps (402) is divided into two, one of the pipe clamps (402) is fixedly connected to a slide block (403), two double-acting screws (405) are rotatably connected on the side of the two mounting bases (4) away from the support rods (401), and the double-acting screws (405) are threadedly connected to the slide block (403). An output motor (404) is installed on one side of the top of the base (1), and the output end of the output motor (404) drives the two double-acting screws (405) to rotate through a synchronous pulley and a synchronous belt. An electric cylinder (5) is installed on one side of the outer wall of the base (1), and a hot plate (501) is installed on one side of the top of the electric cylinder (5).

2. The pipeline quick-connection sealing device according to claim 1, characterized in that: A U-shaped mounting plate (204) is fixedly connected to the outer surface of the annular rotating plate (202). A bolt (205) passes through and rotates through the middle of the U-shaped mounting plate (204). One end of the bolt (205) passes through the U-shaped mounting plate (204) and is threadedly connected to the lower slider (203) to realize the lifting and lowering of the lower slider (203).

3. The pipeline quick-connection sealing device according to claim 1, characterized in that: The two slide blocks (2) slide on the outer walls of the two support rods (401), respectively.

4. The pipeline quick-connection sealing device according to claim 1, characterized in that: A first heating ring (502) is installed on one side of the outer wall of the heating plate (501), and the first heating ring (502) is shaped such that one side of the inner cavity is set with an annular inclined angle. A second heating ring (503) is installed on the side of the heating plate (501) away from the first heating ring (502), and the second heating ring (503) is shaped such that one side of the outer wall is set with an annular inclined angle.

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