Pipe structure of water supply and sewerage system and construction method thereof

Abstract

The application relates to the technical field of pipeline construction, in particular to a pipeline structure of a water supply and drainage system and a construction method thereof, wherein the pipeline structure of the water supply and drainage system comprises a clamping device sleeved with a first flange and a second flange, the clamping device comprises a first clamping sleeve and a second clamping sleeve, the first clamping sleeve and the second clamping sleeve are internally provided with narrowing portions which gradually narrow outward, the first opening and the second opening are provided with toothed portions, a bolt assembly comprises a first nut, the lower portion of the first nut is provided with a hollow gear column matched with the toothed portions; the first sealing ring is composed of a flat ring and a vertical ring, the inner circumferential surface of the flat ring is connected with the middle portion of the outer circumferential surface of the vertical ring, the outer circumferential surface of the vertical ring on both sides of the flat ring is provided with an arc convex portion, and the end portions of the first pipeline and the second pipeline are provided with a type groove accommodating the first sealing ring. The bolt on the wall or ground side of the flange is replaced by the clamping device, so that the construction is facilitated; meanwhile, the vertical sealing ring arranged in the flange improves the sealing and leakage prevention effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline construction, in particular to a pipeline structure of a water supply and drainage system and a construction method thereof. BACKGROUND

[0002] With the process of urbanization and industrialization, building construction is more and more valued by the society. The quality of building construction is directly related to the comfort and convenience of the residents and the ability to resist geological disasters. As an important unit in building construction, the water supply and drainage system is related to the production and life of the residents after moving in and the fire-fighting ability, and is an important embodiment of whether the building engineering is excellent.

[0003] Two pipe ends are welded with flanges, and the flange connection for pipe joint is completed by bolting the flanges. The flange connection structure is still the mainstream pipeline connection method at present because of its simple structure and good construction performance. However, the flange connection structure needs to be bolted with 6-8 bolts, which has high working strength and lacks bolt knob space when the pipeline is installed close to the wall and close to the ground, so the construction is difficult. At the same time, the sealing performance of the traditional flange connection structure is also difficult to meet the higher safety production requirements. SUMMARY

[0004] In order to overcome the above technical problems, the present application provides a pipeline structure of a water supply and drainage system and a construction method thereof.

[0005] The pipeline structure of the water supply and drainage system and the construction method thereof provided by the present application adopt the following technical scheme:

[0006] The pipeline structure of the water supply and drainage system comprises a first pipeline, a second pipeline and a first sealing ring, the first pipeline and the second pipeline are respectively provided with a first flange and a second flange at the ends, the first flange and the second flange abut each other, the first flange and the second flange are provided with a clamping device outside, the clamping device comprises a first clamping sleeve and a second clamping sleeve, one end of the first clamping sleeve and the second clamping sleeve is hingedly connected, the other end of the first clamping sleeve and the second clamping sleeve is respectively provided with a first opening and a second opening, the first opening and the second opening are bolted with the flange holes provided on the first flange and the second flange through a bolt assembly, the first clamping sleeve and the second clamping sleeve are provided with a narrowing portion which gradually narrows outward, the first opening and the second opening are provided with a toothed portion, the bolt assembly comprises a first nut, the lower part of the first nut is provided with a hollow gear column matched with the toothed portion; the first sealing ring is arranged between the first flange and the second flange, the first sealing ring is composed of a flat ring and a vertical ring, the inner circumferential surface of the flat ring is connected with the middle part of the outer circumferential surface of the vertical ring, the outer circumferential surface of the vertical ring on both sides of the flat ring is provided with an arc convex portion, the end of the first pipeline and the second pipeline is provided with a type groove accommodating the first sealing ring.

[0007] By adopting the technical scheme, the first nut is screwed, the hollow gear column and the toothed portion are matched, one side of the first flange and the second flange is pressed by the narrowing portion, the side close to the wall or the ground does not need to be locked by bolts, and construction is facilitated; the vertical ring prolongs the length of the sealing path of the traditional sealing ring, improves the sealing and leakage prevention effect, the arc convex portion is designed, the vertical ring is pressed outward after being pressed, the first pipeline and the second pipeline are pressed tightly, and the sealing effect is further improved.

[0008] Preferably, a flow guide cavity is arranged in the flat ring in the transverse direction, a pressure boosting cavity is arranged in the vertical ring in the vertical direction, the first pressure boosting cavity and the second pressure boosting cavity are communicated with each other, and flowing liquid is arranged in the flow guide cavity and the pressure boosting cavity.

[0009] By adopting the technical scheme, after the bolt is locked, the flow guide cavity is pressed, the flowing liquid in the flow guide cavity is extruded into the pressure boosting cavity, the volume of the pressure boosting cavity is expanded, the first pipeline and the second pipeline are pressed tightly, and the sealing effect is further improved.

[0010] Preferably, the first sealing ring is dispersedly provided with a second sealing ring and a third sealing ring between the first pipeline and the second pipeline.

[0011] By adopting the technical scheme, the hardness of the second sealing ring and the third sealing ring is lower than that of the first sealing ring, and the tightness of the sealing structure and the sealing effect are improved.

[0012] Preferably, a negative pressure groove is arranged between the second sealing ring and the first pipeline and between the third sealing ring and the second pipeline, air holes are arranged on the outer walls of the first pipeline and the second pipeline respectively, the air holes and the negative pressure grooves are connected through air channels arranged in the first pipeline and the second pipeline, and one-way air valves are arranged in the air channels.

[0013] By adopting the technical scheme, the second sealing ring and the third sealing ring are more closely attached to the first pipeline and the second pipeline by the negative pressure groove and the air channel, and the sealing property and the sealing life are improved.

[0014] Preferably, the air holes are sealed by transparent waterproof glue.

[0015] By adopting the technical scheme, the air channel is closed by the transparent waterproof glue, and the negative pressure sealing effect of the negative pressure groove is ensured.

[0016] Preferably, the transparent waterproof glue is filled with water color-changing material on the inner side.

[0017] By adopting the technical scheme, whether the pipe connection leaks can be more intuitively judged by the water color-changing material, and maintenance is facilitated.

[0018] Preferably, a recessed area is arranged in the middle of the inner circumferential surface of the vertical ring.

[0019] By adopting the technical scheme, the recessed area gives the vertical ring a tendency to concave outward after being pressed at both ends, avoiding concave bulging inward and damaging the sealing performance.

[0020] Preferably, the inner circumferential surface of the vertical ring is provided with a hydrophobic corrosion-resistant layer.

[0021] By adopting the technical scheme, the hydrophobic corrosion-resistant layer avoids the direct contact between the first sealing ring and the drainage in a large area, and improves the service life of the sealing ring.

[0022] Preferably, the flat ring is provided with a pressure reduction cavity along the transverse direction, and the pressure reduction cavity is provided with an inner recess at both ends.

[0023] By adopting the technical scheme, after the bolt is locked, the pressure reduction cavity reduces the inward extrusion stress of the flat ring, so that the first sealing ring is more closely attached to the first pipeline and the second pipeline, and the sealing effect is improved.

[0024] A construction method of a pipeline structure of a water supply and drainage system as described above, comprising the following steps: cleaning and laying the site, placing the first pipeline and the second pipeline at the pre-laying point, sleeving the second sealing ring and the third sealing ring on the arc convex parts provided on both sides of the first sealing ring to form a sealing ring group, assembling the sealing ring group into the groove at the end of the first pipeline, splicing the ends of the first pipeline and the second pipeline, sleeving the clamping device outside the flanges at the ends of the first pipeline and the second pipeline, and locking the clamping device and the flanges through the bolt; and the construction is completed by separating the air in the air passage from the negative pressure groove on one side of the one-way air valve through the air extraction device, and sequentially injecting the water-color-changing material and the transparent waterproof adhesive into the air passage.

[0025] By adopting the technical scheme, the traditional flange installation method is added with the negative pressure air extraction and adhesive filling processes, and the sealing and leakage prevention effect is greatly improved with a small increase in construction workload.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] The present application replaces part of the bolts on the flange with the clamping device, so that the side of the flange close to the wall or the ground does not need to be locked by the bolt, facilitating construction; meanwhile, the vertical ring arranged in the flange prolongs the length of the sealing path of the traditional sealing ring, improves the sealing and leakage prevention effect, and the design of the arc convex part makes the vertical ring concave outward after being pressed, tightly pressing the first pipeline and the second pipeline, further improving the sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of the present application.

[0029] Figure 2 is a structural schematic diagram of the present application.

[0030] Figure 3 is a structural schematic diagram of the clamping device of the present application.

[0031] Figure 4 This is a schematic diagram of the internal structure of the clamping device of the present invention.

[0032] Figure 5 This is a schematic diagram of the first nut structure of the present invention.

[0033] Figure 6 This is a side view of the internal structure of the tube in this invention.

[0034] Figure 7 yes Figure 6 Enlarged view of section A.

[0035] Explanation of reference numerals in the attached drawings: 1. First pipe; 2. Second pipe; 31. Groove; 32. Negative pressure groove; 33. Air hole; 34. Air passage; 35. One-way air valve; 36. Transparent waterproof adhesive; 37. Water-sensitive color-changing material; 5. First flange; 6. Second flange; 71. Flange hole; 8. Clamping device; 81. First jacket; 811. First opening; 82. Second jacket; 821. Second opening; 83. Narrowing part; 84. Toothed part; 85. Bolt assembly; 851. First nut; 852. Hollow gear column; 9. First sealing ring; 91. Flat ring; 911. Flow guide cavity; 912. Pressure reducing cavity; 92. Vertical ring; 921. Arc-shaped protrusion; 922. Pressure boosting cavity; 923. Recessed area; 924. Hydrophobic anti-corrosion layer; 10. Second sealing ring; 11. Third sealing ring. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0037] like Figures 1-5 As shown in the illustration, this application discloses a pipe structure for a water supply and drainage system, including a first pipe 1, a second pipe 2, and a first sealing ring 9. The ends of the first pipe 1 and the second pipe 2 are respectively provided with a first flange 5 and a second flange 6, which abut against each other. A clamping device 8 is fitted over the first flange 5 and the second flange 6. The clamping device 8 includes a first sleeve 81 and a second sleeve 82, which are hinged at one end. Specifically, the ends of the first sleeve 81 and the second sleeve 82 have mutually fitting recesses, and the circumferential surfaces of the ends are provided with mutually hinged bushings. The hinged first sleeve 81 and the second sleeve 82 can form an openable C-shaped structure. During installation, the first sleeve 81 and the second sleeve 82 are opened, and then the first flange 5 and the second flange 6 are inserted into the central cavity of the first sleeve 81 and the second sleeve 82, pressing the first sleeve 81 and the second sleeve 82 together.

[0038] The first clamping sleeve 81 and the second clamping sleeve 82 are provided with a first opening 811 and a second opening 821 at the other end, respectively, and the first opening 811 and the second opening 821 are long strip-shaped openings arranged along the arc direction of the first clamping sleeve 81 and the second clamping sleeve 82. The first opening 811 and the second opening 821 are bolted with the flange hole 71 provided on the first flange 5 and the second flange 6 through a bolt assembly 85, and the first clamping sleeve 81 and the second clamping sleeve 82 are provided with a narrowing part 83 gradually narrowing outward, and the inner side of the first opening 811 and the second opening 821 is provided with a toothed part 84. When the bolt assembly 85 used by the first opening 811 and the second opening 821 is the same, the toothed part 84 of the first opening 811 is arranged on the side close to the center of the clamping device 8, and the toothed part 84 of the second opening 821 is arranged on the side away from the center of the clamping device 8. Therefore, when the bolt assembly 85 at two places is rotated, the inner side of the first clamping sleeve 81 and the second clamping sleeve 82 moves towards the pipe wall. The bolt assembly 85 includes a first nut 851, and the lower part of the first nut 851 is provided with a hollow gear column 852 matched with the toothed part 84. The stud of the bolt assembly 85 is inserted into the first opening 811, the second opening 821 and the flange hole 71, and then the stud is inserted out of the other group of first openings 811 and second openings 821 symmetrically arranged on the other side, and then the stud is screwed with the first nut 851 at both ends. First, the first nut 851 on the first opening 811 and the second opening 821 close to the end of the shaft sleeve is rotated downward, and when the hollow gear column 852 of the first nut 851 enters the first opening 811 or the second opening 821, it is engaged with the toothed part 84 provided on the side wall of the first opening 811 or the second opening 821. At this time, continuing to rotate the first nut 851 will drive the inner side of the first clamping sleeve 81 and the second clamping sleeve 82 to move towards the pipe wall, and the narrowing part 83 inside the first clamping sleeve 81 and the second clamping sleeve 82 will increase the extrusion on the first flange 5 and the second flange 6, so that the first flange 5 and the second flange 6 fit more closely. Further, the first opening 811 and the second opening 821 can be provided with multiple bolt assemblies 85 and corresponding toothed parts 84, that is, the toothed part 84 of the first group of bolt assemblies 85 has a length a1, and the length a1 has no toothed part 84 on both sides. The first group of bolt assemblies 85 can move the inner side of the first clamping sleeve 81 and the second clamping sleeve 82 to the pipe wall by a distance S1 through the length a1 of the toothed part 84. After the first group of bolt assemblies 85 enters the toothless part 84, the knob of the second group of bolt assemblies 85 can move the inner side of the first clamping sleeve 81 and the second clamping sleeve 82 to the pipe wall by a distance S2 through the length a2 of the toothed part 84 corresponding to the second group of bolt assemblies 85. By continuously reducing the distance from the inner side of the first clamping sleeve 81 and the second clamping sleeve 82 to the pipe wall through multiple bolt assemblies 85, the extrusion force on the first flange 5 and the second flange 6 is greater, and the pressure stability is higher.

[0039] As Figures 6-7As shown, the first flange 5 and the second flange 6 are provided with the first sealing ring 9, which is composed of a flat ring 91 and a vertical ring 92. The inner circumferential surface of the vertical ring 92 is provided with a hydrophobic anti-corrosion layer 924, which can be made of amorphous fluoropolymer or other low-surface-energy polymers, such as DuPont AF1600, Cytop, etc. The hydrophobic anti-corrosion layer avoids the direct contact of the first sealing ring with the drainage in a large area, thereby improving the service life of the sealing ring. The inner circumferential surface is provided with a recessed area 923 in the middle. The inner circumferential surface of the flat ring 91 is connected to the middle of the outer circumferential surface of the vertical ring 92. The flat ring 91 is provided with a pressure reduction cavity 912 along the transverse direction, and the two ends of the pressure reduction cavity 912 are provided with recessed parts. The outer circumferential surface of the vertical ring 92 on both sides of the flat ring 91 is provided with an arc convex part 921. The flat ring 91 is provided with a flow guide cavity 911 along the transverse direction, and the vertical ring 92 is provided with a pressure increasing cavity 922 along the vertical direction. The first pressure increasing cavity 922 and the second pressure increasing cavity 922 are in communication with each other, and the flow guide cavity 911 and the pressure increasing cavity 922 are provided with flowing liquid. The flowing liquid can be a high-consistency organic or inorganic solution coated with an elastic material. The end of the first pipe 1 and the second pipe 2 is provided with a type groove 31 accommodating the first sealing ring 9, and the inner wall of the type groove 31 is matched with the shape of the arc convex part 921. The first sealing ring 9 is dispersedly provided with the second sealing ring 10 and the third sealing ring 11 between the first pipe 1 and the second pipe 2, and the structure of the second sealing ring 10 and the third sealing ring 11 is symmetrical. The second sealing ring 10 and the first pipe 1, and the third sealing ring 11 and the second pipe 2 are provided with a negative pressure groove 32, which is a circumferential annular groove. The outer wall surface of the first pipe 1 and the second pipe 2 is respectively provided with an air hole 33, which is connected with the negative pressure groove 32 through the air channel 34 provided in the first pipe 1 and the second pipe 2. The air channel 34 is provided with a one-way air valve 35. The air hole 33 is sealed with transparent waterproof glue 36. The transparent waterproof glue 36 is filled with water-color-changing material 37, such as color-changing silicone, on the inner side.

[0040] The construction method of the pipeline structure of the water supply and drainage system comprises the following steps: cleaning a laying site, placing a first pipeline 1 and a second pipeline 2 at a pre-laying point, sleeving a second sealing ring 10 and a third sealing ring 11 on arc convex portions 921 provided on both sides of the first sealing ring 9 to form a sealing ring group, assembling the sealing ring group into a groove 31 at an end of the first pipeline 1, splicing ends of the first pipeline 1 and the second pipeline 2, sleeving a clamping device 8 outside flanges at the ends of the first pipeline 1 and the second pipeline 2, inserting studs of a bolt assembly 85 into first holes 811, second holes 821 and flange holes 71, and then rotating first nuts 851 at both ends of the studs, rotating the first nuts 851 downwards first, and then rotating the first nuts 851 when hollow gear columns 852 of the first nuts 851 enter the first holes 811 or the second holes 821 and engage with toothed portions 84 provided on sidewalls of the first holes 811 or the second holes 821, at this time, the first nuts 851 are continuously rotated to drive the first clamping sleeve 81 and the second clamping sleeve 82 to move towards the pipe wall, and narrowed portions 83 in the first clamping sleeve 81 and the second clamping sleeve 82 increase extrusion on the first flange 5 and the second flange 6, so that the first flange 5 and the second flange 6 are tightly attached on one side without using bolts. The first flange 5 and the second flange 6 are tightly pressed by the clamping device 8 and the bolt assembly 85. Finally, negative pressure grooves 32 on one side of one-way air valves 35 are air-extracted from air passages 34 by air extraction equipment, and water-color-changing material 37 and transparent waterproof glue 36 are sequentially injected into the air passages 34 to complete the construction.

[0041] In the embodiment, the clamping device 8 replaces bolts required for bolting of the first flange 5 and the second flange 6, so that the first flange 5 and the second flange 6 do not need to be bolted on the wall or the ground side, and the construction is facilitated; meanwhile, the first sealing ring 9 provided in the first flange 5 and the second flange 6 has a special structure, the length of a sealing path of a traditional sealing ring is prolonged, the sealing and leakage prevention effect is improved, the arc convex portions 921 are designed, the vertical ring is outwardly concave and stretched to tightly press the first pipeline 1 and the second pipeline 2 after being pressed, and the sealing effect is further improved.

[0042] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A pipe structure of a water supply and sewerage system, characterized by: The utility model provides a pipe sealing device, including first pipeline (1), second pipeline (2) and first sealing ring (9), and first pipeline (1) and second pipeline (2) end are equipped with first flange (5) and second flange (6) respectively, and first flange (5) and second flange (6) are mutually butt joint, and first flange (5) and second flange (6) are equipped with clamping device (8) outside, and clamping device (8) includes first clamp cover (81) and second clamp cover (82), and first clamp cover (81) and second clamp cover (82) one end hinged connection, and first clamp cover (81) and second clamp cover (82) other end are equipped with first opening (811) and second opening (821) respectively, and first opening (811) and second opening (821) are bolted through bolt assembly (85) with the flange hole (71) of first flange (5) and second flange (6) and are equipped with, and first clamp cover (81) and second clamp cover (82) are equipped with the narrowing portion (83) that gradually narrows outward in, and first opening (811) and second opening (821) are equipped with the dentate part (84), and bolt assembly (85) includes first nut (851), and first nut (851) lower part is equipped with the hollow gear column (852) of cooperation with dentate part (84);First flange (5) and second flange (6) are equipped with first sealing ring (9) between, and first sealing ring (9) is by flat ring (91) and vertical ring (92) constitutes, and flat ring (91) inner periphery surface is connected with the middle part of vertical ring (92) outer periphery, and the outer periphery of vertical ring (92) of flat ring (91) both sides is equipped with arc convex part (921), and first pipeline (1) and second pipeline (2) end are equipped with the type groove (31) of accommodating first sealing ring (9); The first sealing ring (9) is dispersedly provided with a second sealing ring (10) and a third sealing ring (11) between the first pipeline (1) and the second pipeline (2); The second sealing ring (10) and the third sealing ring (11) are respectively provided with a negative pressure groove (32) between the first pipeline (1) and the second pipeline (2); The gas hole (33) is sealed with transparent waterproof glue (36); The transparent waterproof glue (36) is filled with a water-color-changing material (37) on the inner side.

2. The plumbing structure of a water supply and drainage system according to claim 1, characterized by: The flat ring (91) is provided with a flow guide cavity (911) along the transverse direction, and the vertical ring (92) is provided with a booster cavity (922) along the vertical direction, the first booster cavity (922) and the second booster cavity (922) are in communication with each other, and the flow guide cavity (911) and the booster cavity (922) are filled with flowing liquid.

3. The plumbing structure of a water supply and drainage system according to claim 1, characterized by: The vertical ring (92) is provided with a recessed area (923) on the inner periphery.

4. The plumbing structure of a water supply and drainage system according to claim 1, characterized by: The vertical ring (92) is provided with a hydrophobic and corrosion-resistant layer (924) on the inner periphery.

5. The plumbing arrangement of claim 1, wherein: The flat ring (91) is provided with a pressure reduction cavity (912) along the transverse direction, and the pressure reduction cavity (912) is provided with an inner recess at both ends.

6. A method of constructing a pipe structure of a water supply and sewerage system according to any one of claims 1 to 5, characterized by, The method comprises the following steps: cleaning the laying site, placing the first pipe (1) and the second pipe (2) at a pre-laying point, sleeving the second sealing ring (10) and the third sealing ring (11) on the arc convex parts (921) arranged on both sides of the first sealing ring (9) to form a sealing ring group, assembling the sealing ring group into a groove (31) at the end of the first pipe (1), splicing the ends of the first pipe (1) and the second pipe (2), sleeving a clamping device (8) outside the flanges at the ends of the first pipe (1) and the second pipe (2), and locking the clamping device (8) and the flanges through bolts; and the method further comprises the following steps: air is extracted from the air passage (34) and the negative pressure groove (32) on one side of the one-way air valve (35) through an air extraction device, and water-resistant transparent glue (36) and water color-changing material (37) are sequentially injected into the air passage (34) to complete the construction.

Images