Double-waterproof and double-heat-preservation roof outlet pipeline waterproof joint device and using method of double-waterproof and double-heat-preservation roof outlet pipeline waterproof joint device

Abstract

The invention discloses a double-waterproof and double-heat-preservation roof outlet pipeline waterproof joint device and a using method, and relates to the technical field of roof outlet pipeline waterproofness, the double-waterproof and double-heat-preservation roof outlet pipeline waterproof joint device comprises a roof pipeline waterproof heat preservation assembly installed at the joint of the roof top and a first pipeline, and a pipeline joint waterproof heat preservation assembly is installed above the roof pipeline waterproof assembly; a pipeline fixing block and a first sealing ring are installed at the joint of a first pipeline and a roof, a waterproof cover plate is installed above the pipeline fixing block and the first sealing ring, a supporting spring is installed at the top of a waterproof bottom plate, a pressing block and a second sealing ring are sequentially installed above the supporting spring, and then the waterproof cover plate is installed above the second sealing ring; and finally, the waterproof cover plate and the second pipeline are fixed through bolts, so that water prevention and heat preservation are conducted on the connecting positions of the pipelines and the roof and the connecting positions between the pipelines. The device has the advantages of being simple in structure, convenient to install, high in reliability and comprehensive in function.

Description

Technical Field

[0001] The invention relates to the technical field of waterproofing of roof pipes, and in particular to a waterproofing node device for a roof pipe on a double waterproof and double thermal insulation roof and a use method thereof. Background Art

[0002] In modern buildings, roof waterproofing and insulation are key measures to ensure building safety, comfort and energy saving, especially for complex environments such as green roofs, the requirements for waterproofing and insulation are more stringent; existing waterproofing and insulation technologies include cast-in-place concrete floors, cement mortar leveling layers, thermal insulation layers, waterproof layers, cement mortar protective layers, drainage systems and other measures, but these technologies have many problems, such as easy aging of the waterproof layer, poor thermal insulation effect, etc., especially at the connection between the pipe and the roof, waterproofing is more difficult, and when leakage occurs, waterproofing materials can only be reinstalled or the waterproof layer can only be dismantled and reinstalled as a whole, which is difficult to meet the needs of modern buildings.

[0003] After searching, the Chinese patent with the announcement number of CN 112900758 A discloses a double waterproof and double insulation roof outlet pipe waterproof node device, including a pipe mechanism, a first fixing mechanism, a second fixing mechanism and a connecting mechanism, the bottom of the pipe mechanism is inserted into the top of the roof mechanism; the first fixing mechanism is fixedly connected to the middle upper position of the roof mechanism; the clip B is clamped at the middle lower position of the extension pipe by the cooperation of the fixing screw B and the nut, and the above operation prevents rainwater from entering the roof pipe through the gap between the extension pipe and the roof pipe, affecting the normal use of the roof pipe. At the same time, the connection and tightening performance of the extension pipe and the roof pipe are strengthened by the cooperation of the first fixing mechanism and the second fixing mechanism; but since the device is only waterproof for the pipe connection above the roof, it does not take into account the possible leakage problem between the pipe and the roof, and the scope of application is narrow; at the same time, the connection frame, the spacer, the adjustment handle and other structures in the connecting mechanism part of the device are easily affected by the outdoor environment such as wind or rain, so that the sealing effect at the pipe node is affected and the reliability is poor. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention aims to provide a double waterproof and double thermal insulation roof outlet pipe waterproof node device and a use method. By designing a roof pipe waterproof and thermal insulation component and a pipe node waterproof and thermal insulation component, the connection between the roof outlet pipe and the roof and the connection between the pipes are respectively waterproofed and insulated. It has the advantages of simple structure, easy installation, strong reliability and comprehensive functions.

[0005] The main idea of ​​the technical solution adopted by the present invention is: to design a roof pipe waterproof and heat-insulating component, by covering the waterproof bottom plate above the pipe fixing block and the sealing ring, so as to waterproof and heat-insulate the connection between the roof pipe and the roof; to design a pipe node waterproof and heat-insulating component, by covering the waterproof cover plate above the waterproof bottom plate, and setting a spring support mechanism, so as to waterproof and heat-insulate the connection between the external pipe and the roof pipe.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A double waterproof and double thermal insulation roof outlet roof pipe waterproof node device, including a roof pipe waterproof and thermal insulation component installed at the connection between the roof top and the first pipe, and a pipe node waterproof and thermal insulation component for waterproofing and thermally insulating the connection between the first pipe and the second pipe is also installed above the roof pipe waterproof component.

[0007] The roof pipe waterproof and heat-insulating assembly includes a pipe fixing block and a first sealing ring which are sleeved on the roof. The middle part of the pipe fixing block is fixedly connected to the outer wall of the first pipe. The outer side of the pipe fixing block is sleeved with the first sealing ring. A waterproof bottom plate is provided on the top of the pipe fixing block and the first sealing ring. A pipe node waterproof and heat-insulating assembly is provided above the waterproof bottom plate.

[0008] The pipeline node waterproof and heat-insulating assembly includes a waterproof cover plate arranged on the outer wall of the first pipeline, a spring support mechanism is arranged at the connection between the waterproof cover plate and the waterproof bottom plate and along the vertical direction of the outer wall of the first pipeline, and a drainage mechanism is arranged near the top of the waterproof cover plate.

[0009] The spring support mechanism includes a support spring sleeved on the outer wall of the first pipe, one end of the support spring is fixed to the top of the waterproof bottom plate, a pressure block is fixed to the end of the support spring away from the waterproof bottom plate, and a second sealing ring is arranged above the pressure block.

[0010] The drainage mechanism comprises a plurality of drainage holes provided at the outer edge of the top of the waterproof cover plate, a water collecting hole is provided at the top of the waterproof cover plate and at the joint with the second pipe, and the plurality of drainage holes are respectively connected with the water collecting holes.

[0011] A first expansion joint is left between the outermost bottom end of the waterproof bottom plate and the top of the roof, and the first sealing ring can extend into the first expansion joint when being squeezed.

[0012] The top of the waterproof cover plate is located below the water collection hole, and a second expansion joint is opened above the second sealing ring. When the second sealing ring is squeezed, it can extend into the second expansion joint.

[0013] The outermost side of the waterproof cover plate is fixedly connected to the top of the roof via a plurality of first bolts, and the top of the waterproof cover plate is fixedly connected to the lower plate of the second pipe via a plurality of second bolts.

[0014] The multiple drainage holes on the waterproof cover plate are arranged alternately with the multiple second bolts.

[0015] A method for using a double waterproof and double thermal insulation roof outlet pipe waterproof node device, comprising the following steps: S1. Fix the pipe fixing block to the outer wall of the first pipe, install the first pipe to the top of the roof, sleeve the first sealing ring to the outside of the pipe fixing block, and install the waterproof bottom plate above the pipe fixing block and the first sealing ring; S2, sleeve the support spring onto the outer wall of the first pipe, make the bottom of the support spring contact with the top of the waterproof bottom plate, install the pressing block onto the top of the support spring, and then install the second sealing ring onto the top of the pressing block; S3, installing the waterproof cover plate along the outer wall of the first pipe to the top of the second sealing ring, using a plurality of first bolts to fix the waterproof cover plate to the top of the roof, sleeve the second pipe to the outer wall of the first pipe, and use a plurality of second bolts to fix the lower plate of the second pipe to the top of the waterproof cover plate; S4. When the first bolts are tightened, the first sealing ring is squeezed by the waterproof bottom plate and extends into the first expansion joint, thereby waterproofing and insulating the connection between the first pipe and the roof. At the same time, the second sealing ring is squeezed by the support spring and the pressure block and extends into the second expansion joint, and the water at the connection between the second pipe and the first pipe or the outside water is discharged through the water collecting hole and the drainage hole on the top of the waterproof cover plate, thereby waterproofing and insulating the connection between the first pipe and the second pipe.

[0016] The beneficial effects of the present invention are: 1. A double waterproof and double insulation structure is formed by designing a roof pipe waterproof and heat-insulating component and a pipe node waterproof and heat-insulating component, and waterproof and heat-insulating treatment is performed on the connection between the first pipe and the roof, and the connection between the second pipe and the first pipe. The structure of the present invention is simple, and the waterproof and heat-insulating purposes of the two parts between the pipe and the roof and between the pipes can be achieved at the same time, and it has the advantage of comprehensive functions.

[0017] 2. By using multiple first bolts and second bolts, the roof pipe waterproof and thermal insulation components and the pipe node waterproof and thermal insulation components are fixed and installed respectively. The disassembly and assembly method is simple and convenient, and each part of the device of the present invention can be disassembled separately for maintenance or replacement. Compared with the prior art, the maintenance cost of the device is lower.

[0018] 3. By using the first sealing ring, the second sealing ring and the drainage mechanism, the connection between the roof and the first pipe, and the connection between the second pipe and the first pipe are waterproofed and insulated respectively, which can ensure that the pipe and the roof are closely fitted to prevent water penetration, making the present invention highly reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 A top view of the present invention; Figure 4 is a top cross-sectional view of the present invention; Figure 5 It is a cross-sectional view of the three-dimensional structure of the present invention; Figure 6 It is a front cross-sectional view of the present invention; Figure 7 It is a partial detail schematic diagram of the three-dimensional structure cross-section of the present invention at point A; Figure 8 It is a schematic diagram of the local details of the front cross-sectional view at B of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the waterproof bottom plate of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the bottom of the waterproof base plate of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the waterproof cover plate of the present invention; Fig.12 It is a partial detail schematic diagram of the three-dimensional structural schematic diagram of the waterproof cover plate of the present invention at position C.

[0020] Among them: 1. roof; 2. first pipe; 3. roof pipe waterproof and heat-insulating assembly; 301. pipe fixing block; 302. first sealing ring; 303. waterproof bottom plate; 4. second pipe; 5. pipe node waterproof and heat-insulating assembly; 501. waterproof cover plate; 502. support spring; 503. pressure block; 504. second sealing ring; 505. drainage hole; 506. water collection hole; 6. first expansion joint; 7. second expansion joint; 8. first bolt; 9. second bolt. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] The inventors have found that existing roof pipe waterproofing technologies include cast-in-place concrete floors, cement mortar leveling layers, thermal insulation layers, waterproof layers, cement mortar protective layers, drainage systems and other measures. However, these technologies have many problems in actual applications. When leakage occurs, waterproofing materials need to be reinstalled or the waterproof layer needs to be dismantled and reinstalled as a whole, which is difficult to meet the needs of modern buildings.

[0023] Based on the above findings, the present application proposes a comprehensive performance test device for a car sunroof motor, which designs a roof pipe waterproof and heat-insulating component, and sets a waterproof bottom plate cover above the pipe fixing block and the sealing ring to waterproof and insulate the connection between the roof pipe and the roof; designs a pipe node waterproof and heat-insulating component, and sets a waterproof cover plate above the waterproof bottom plate, and sets a spring support mechanism to waterproof and insulate the connection between the external pipe and the roof pipe, which has the advantages of simple structure, easy installation, strong reliability and comprehensive functions.

[0024] See also Figure 1-Figure 6 The present application discloses a double waterproof and double thermal insulation roof outlet roof pipe waterproof node device, including a roof pipe waterproof and thermal insulation component 3 installed at the top of the roof 1 and the connection between the first pipe 2, the roof pipe waterproof and thermal insulation component 3 includes a pipe fixing block 301 and a first sealing ring 302 arranged above the roof 1, the middle part of the pipe fixing block 301 is fixedly connected to the outer wall of the first pipe 2, and the outer side of the pipe fixing block 301 is sleeved with the first sealing ring 302. In some embodiments, the material of the pipe fixing block 301 should be selected to have a resistant Corrosive metal materials, the connection between the pipe fixing block 301 and the first pipe 2 can be selected by installing a fixing pin at the connection between the pipe fixing block 301 and the first pipe 2, or directly processed by an integrated forming process; the first sealing ring 302 should be made of a soft rubber material with good elasticity, and an annular groove for installing the first sealing ring 302 is opened on the top of the roof 1, and the depth of the annular groove should be slightly smaller than the thickness of the first sealing ring 302, so that the first sealing ring 302 can be squeezed and extended to the first expansion joint 6 outside, thereby improving the waterproof and heat preservation effect, refer to Fig. 9 as well as Fig.10A waterproof bottom plate 303 is provided on the top of the pipe fixing block 301 and the first sealing ring 302. The bottom cavity size of the waterproof bottom plate 303 should be able to completely cover the pipe fixing block 301 and the first sealing ring 302. After the waterproof bottom plate 303 is installed on the top of the pipe fixing block 301 and the first sealing ring 302, its outermost lower end surface should not contact the roof 1, thereby forming a first expansion joint 6 for the first sealing ring 302 to extend. A pipe node waterproof and heat-insulating component 5 is provided above the waterproof bottom plate 303. By designing the roof pipe waterproof and heat-insulating component 3 and the pipe node waterproof and heat-insulating component 5, waterproof and heat-insulating treatment is performed on the connection between the first pipe 2 and the roof 1, and on the connection between the second pipe 4 and the first pipe 2, so that the structure of the present invention is simple, and the waterproof and heat-insulating purposes of the two parts between the pipe and the roof and between the pipes can be achieved at the same time, and it has the advantage of comprehensive functions.

[0025] See also Figure 7 as well as Figure 8 The pipeline node waterproof and heat-insulating component 5 includes a waterproof cover plate 501 arranged on the outside of the pipe wall of the first pipe 2. The material of the waterproof cover plate 501 should be a metal material with strong corrosion resistance and high material strength. A cavity that can just cover the top of the waterproof bottom plate 303 is opened at the bottom of the waterproof cover plate 501. A spring support mechanism is arranged at the connection between the waterproof cover plate 501 and the waterproof bottom plate 303, and along the vertical direction of the outside of the pipe wall of the first pipe 2. A drainage mechanism is arranged near the top of the waterproof cover plate 501.

[0026] See also Fig.11 as well as Fig.12 The spring support mechanism includes a support spring 502 sleeved on the outer wall of the first pipe 2, one end of the support spring 502 is fixed to the top of the waterproof bottom plate 501, and a pressure block 503 is fixed to the end of the support spring 502 away from the waterproof bottom plate 501. In some embodiments, the material of the support spring 502 should be a metal material with strong corrosion resistance and large elastic coefficient, and the pressure block 503 should be a metal material with corrosion resistance. The support spring 502 can be directly placed on the top of the waterproof bottom plate 501 or between the pressure blocks 503, or fixed to the waterproof bottom plate by welding or bolting. The top of 501 or the bottom of the pressing block 503, a second sealing ring 504 is arranged above the pressing block 503, when the waterproof cover plate 501 covers the top of the waterproof bottom plate 303 and is fixed to the top of the roof 1 by the first bolt 8, when the waterproof bottom plate 303 is pressed by the waterproof cover plate 501, the supporting spring 502 is compressed, thereby applying upward pressure to the pressing block 503, and the second sealing ring 504 is squeezed by the pressing block 503 and the waterproof cover plate 501, so that the second sealing ring 504 extends to the second expansion joint 7 at the top of the waterproof cover plate 501, thereby improving the waterproof and heat-insulating effects.

[0027] The drainage mechanism includes a plurality of drainage holes 505 opened at the outer edge of the top of the waterproof cover plate 501. As shown in the accompanying drawings, in some embodiments, the number of the drainage holes 505 is 8, and the drainage holes 505 are evenly distributed in a circular shape along the top of the waterproof cover plate 501, and the drainage holes 505 are provided with a certain inclination angle from the middle to the edge of the waterproof cover plate 501 to facilitate the drainage of water in the waterproof cover plate 501. A water collection hole 506 is opened at the top of the waterproof cover plate 501 and at the joint with the second pipe 4. The plurality of drainage holes 505 are respectively connected to the water collection hole 506. The water collection hole 506 is annular and has a height not lower than the position of the second expansion joint 7 at the top of the waterproof cover plate 501. The water at the connection between the first pipe 2 and the second pipe 4, or the water from the outside, is collected by the water collection hole 506 and discharged through the drainage hole 505, thereby improving the waterproof performance of the present invention.

[0028] The first expansion joint 6 is left between the bottom end of the waterproof bottom plate 303 located at the outermost side and the top of the roof. When the first sealing ring 302 is squeezed, it can extend into the first expansion joint 6; the top of the waterproof cover plate 501 is located below the water collection hole 506, and a second expansion joint 7 is opened above the second sealing ring 504. When the second sealing ring 504 is squeezed, it can extend into the second expansion joint 7. By fixing the waterproof cover plate 501 to the top of the roof 1, the first sealing ring 302 and the second sealing ring 504 are squeezed and extend into the first expansion joint 6 or the second expansion joint 7. When the waterproof cover plate 501 is fully compressed, the first sealing ring 302 and the second sealing ring 504 can seal the connection between the roof 1 and the first pipe 2, and the connection between the first pipe 2 and the second pipe 4, so that the waterproof and heat-insulating performance of the present invention is improved; by using the first sealing ring 302, the second sealing ring 504 and the drainage mechanism, the connection between the roof 1 and the first pipe 2, and the connection between the second pipe 4 and the first pipe 2 are waterproofed and heat-insulated respectively, which can ensure that the pipe and the roof 1 are closely fitted to prevent moisture penetration, so that the present invention has strong reliability.

[0029] The outermost side of the waterproof cover plate 501 is fixedly connected to the top of the roof 1 by a plurality of first bolts 8, and the top of the waterproof cover plate 501 is fixedly connected to the lower plate of the second pipe 4 by a plurality of second bolts 9. The materials of the first bolts 8 and the second bolts 9 should both be metal materials with strong corrosion resistance, and rubber gaskets can be provided at the connection during installation to enhance the waterproof effect at the bolt installation location. The multiple drainage holes 505 on the waterproof cover plate 501 are staggered with the plurality of second bolts 9 to prevent the installation of the second bolts 9 from affecting the drainage function of the waterproof cover plate 501. The roof pipe waterproof and heat-insulating assembly 3 and the pipe node waterproof and heat-insulating assembly 5 are fixedly installed by using a plurality of bolts, and the various parts of the device of the present invention can be disassembled separately for repair or replacement. Compared with the prior art, the maintenance cost of the device is lower.

[0030] The device of the present invention can adapt to the waterproofing and insulation requirements between the roof and the pipe in different environments, and has a simple structure and is easy to disassemble and assemble. Generally, only the sealing ring needs to be replaced for continued use, and each structure can be installed in other locations for continued use after disassembly, which has strong economic value.

[0031] A method for using a double waterproof and double thermal insulation roof outlet pipe waterproof node device, comprising the following steps: S1. Fix the pipe fixing block 301 to the outer wall of the first pipe 2, and install the first pipe 2 from the top of the roof 1 to fix the first pipe 2, and sleeve the first sealing ring 302 to the outside of the pipe fixing block 301 and install it in the groove on the top of the roof 1, and install the waterproof bottom plate 303 above the pipe fixing block 301 and the first sealing ring 302. During installation, ensure that the cavity at the bottom of the waterproof bottom plate 303 completely covers the pipe fixing block 301 and the first sealing ring 302; S2. Sleeve the support spring 502 onto the outer wall of the first pipe 2, and make the bottom of the support spring 502 contact the top of the waterproof bottom plate 303, and install the pressing block 503 onto the top of the support spring 502. In some embodiments, the support spring 502 may also be fixed to the top of the waterproof bottom plate 303 or the bottom of the pressing block 503 by bolts or welding in advance, and then install the second sealing ring 504 onto the top of the pressing block 503. S3, install the waterproof cover plate 501 to the top of the second sealing ring 504 along the outer wall of the first pipe 2, use a plurality of first bolts 8 to fix the waterproof cover plate 501 to the top of the roof 1, sleeve the second pipe 4 to the outer wall of the first pipe 2, and use a plurality of second bolts 9 to fix the lower plate of the second pipe 4 to the top of the waterproof cover plate 501; S4. When the plurality of first bolts 8 are tightened, the first sealing ring 302 is squeezed by the waterproof bottom plate 303 and extends into the first expansion joint 6, thereby waterproofing and insulating the connection between the first pipe 2 and the roof 1. At the same time, the second sealing ring 504 is squeezed by the support spring 502 and the pressing block 503 and extends into the second expansion joint 7, and the water at the connection between the second pipe 4 and the first pipe 2 or the outside water is discharged through the water collecting hole 506 and the drainage hole 505 on the top of the waterproof cover plate 501, thereby waterproofing and insulating the connection between the first pipe 2 and the second pipe 4.

[0032] Specific application cases Install the first pipe 2 to the top of the roof 1 through the pipe fixing block 301, then install the first sealing ring 302 into the groove on the top of the roof 1, use the waterproof bottom plate 303 to install along the first pipe 2, and cover the pipe fixing block 301 on the first sealing ring 302, install the support spring 502 to the top of the waterproof bottom plate 303 along the outer wall of the first pipe 2, install the pressing block 503 on the top of the support spring 502, install the second sealing ring 504 on top of the pressing block 503, use the waterproof cover plate 501 to install on top of the pressing block 503, and cover the waterproof cover plate 501. The bottom plate 303 uses a plurality of first bolts 8 to fix the waterproof cover plate 501 to the top of the roof 1 along the edge. When the waterproof cover plate 501 is gradually pressed by the first bolts 8, the first sealing ring 302 and the second sealing ring 504 are gradually squeezed and extend into the first expansion joint 6 and the second expansion joint 7, thereby sealing the first pipe 2 and the roof 1 and the top of the waterproof cover plate 501. Finally, a plurality of second bolts 9 are used to fix the lower plate of the second pipe 4 to the top of the waterproof cover plate 501, thereby completing the waterproofing between the first pipe 2 and the second pipe 4; When water flows through the first pipe 2 and the second pipe 4, a small amount of water will flow into the top of the waterproof cover 501 from the connection between the first pipe 2 and the second pipe 4, or water from the outside, such as rainwater, will be discharged through the water collection hole 506 and the drainage hole 505 on the waterproof cover 501.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double waterproof and double thermal insulation roof outlet pipe waterproof node device, characterized in that: It comprises a roof pipe waterproof and heat-insulating assembly (3) installed at the connection between the top of a roof (1) and a first pipe (2); a pipe node waterproof and heat-insulating assembly (5) for waterproofing and heat-insulating the connection between the first pipe (2) and the second pipe (4) is also installed above the roof pipe waterproof assembly (3).

2. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 1, characterized in that: The roof pipe waterproof and heat-insulating assembly (3) comprises a pipe fixing block (301) arranged above the roof (1); the middle portion of the pipe fixing block (301) is fixedly connected to the outer wall of the first pipe (2); a first sealing ring (302) is sleeved on the outer side of the pipe fixing block (301); a waterproof bottom plate (303) is provided on the top of the pipe fixing block (301) and the first sealing ring (302); and a pipe node waterproof and heat-insulating assembly (5) is provided above the waterproof bottom plate (303).

3. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 2, characterized in that: The pipeline node waterproof and heat-insulating assembly (5) comprises a waterproof cover plate (501) sleeved on the outer wall of the first pipeline (2), a spring support mechanism is provided at the connection between the waterproof cover plate (501) and the waterproof bottom plate (303) and along the vertical direction of the outer wall of the first pipeline (2), and a drainage mechanism is provided near the top of the waterproof cover plate (501).

4. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 3, characterized in that: The spring support mechanism comprises a support spring (502) sleeved on the outer wall of the first pipe (2), one end of the support spring (502) being fixed to the top of the waterproof bottom plate (303), a pressure block (503) being fixed to the end of the support spring (502) away from the waterproof bottom plate (303), and a second sealing ring (504) being arranged above the pressure block (503).

5. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 3, characterized in that: The drainage mechanism comprises a plurality of drainage holes (505) provided at the outer edge of the top of the waterproof cover plate (501); a water collecting hole (506) is provided at the top of the waterproof cover plate (501) and at the joint with the second pipe (4); and the plurality of drainage holes (505) are respectively connected to the water collecting holes (506).

6. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 2, characterized in that: A first expansion joint (6) is left between the outermost bottom end of the waterproof bottom plate (303) and the top of the roof (1), and the first sealing ring (302) can extend into the first expansion joint (6) when being squeezed.

7. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 5, characterized in that: The top of the waterproof cover plate (501) is located below the water collection hole (506), and a second expansion joint (7) is provided above the second sealing ring (504); when the second sealing ring (504) is squeezed, it can extend into the second expansion joint (7).

8. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 3, characterized in that: The outermost side of the waterproof cover plate (501) is fixedly connected to the top of the roof (1) via a plurality of first bolts (8), and the top of the waterproof cover plate (501) is fixedly connected to the lower wall of the second pipe (4) via a plurality of second bolts (9).

9. A double waterproof and double thermal insulation roof outlet pipe waterproof node device according to claim 5, characterized in that: The multiple drainage holes (505) on the waterproof cover plate (501) and the multiple second bolts (9) are arranged alternately.

10. A method for using a double waterproof and double thermal insulation roof outlet pipe waterproof node device based on any one of claims 1-9, characterized in that: The following steps are involved: S1, fixing the pipe fixing block (301) to the outer wall of the first pipe (2), installing the first pipe (2) to the top of the roof (1), sleeve the first sealing ring (302) to the outside of the pipe fixing block (301), and installing the waterproof bottom plate (303) above the pipe fixing block (301) and the first sealing ring (302); S2, sleeve the support spring (502) onto the outer wall of the first pipe (2), and make the bottom of the support spring (502) contact the top of the waterproof bottom plate (303), install the pressing block (503) onto the top of the support spring (502), and then install the second sealing ring (504) onto the top of the pressing block (503); S3, installing the waterproof cover plate (501) along the outer wall of the first pipe (2) above the second sealing ring (504), using a plurality of first bolts (8) to fix the waterproof cover plate (501) to the top of the roof (1), sleeve the second pipe (4) onto the outer wall of the first pipe (2), and use a plurality of second bolts (9) to fix the lower plate of the second pipe (4) to the top of the waterproof cover plate (501); S4. When the plurality of first bolts (8) are tightened, the first sealing ring (302) is squeezed by the waterproof bottom plate (303) and extends into the first expansion joint (6), thereby waterproofing and insulating the connection between the first pipe (2) and the roof (1). At the same time, the second sealing ring (504) is squeezed by the support spring (502) and the pressing block (503) and extends into the second expansion joint (7), and discharges water at the connection between the second pipe (4) and the first pipe (2) or water from the outside through the water collecting hole (506) and the drainage hole (505) at the top of the waterproof cover plate (501), thereby waterproofing and insulating the connection between the first pipe (2) and the second pipe (4).

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