Inverted roof thermal insulation layer drainage system and construction method

Abstract

The invention relates to the technical field of building drainage systems, in particular to an inverted roof heat preservation layer drainage system and a construction method.The inverted roof heat preservation layer drainage system comprises a reducing reserved pipe and a water filtering hole reserved pipe, a plurality of structural layer water filtering holes are formed in the surface of the water filtering hole reserved pipe, and two sliding grooves are formed in the inner wall of the water filtering hole reserved pipe; the guide sleeve is rotated downwards to drive the guide pins to move, the guide pins drive the driving column to rotate, the two guide pins drive the driving disc to rotate, the driving disc drives the multiple driving pins to move through the arc-shaped guide opening, and the driving pins drive the sliding plate to move. The sliding plate drives the corresponding protection plugs to be inserted into the structural layer water filtering holes through the extension rods, and when the structural layer is laid, the structural layer water filtering holes formed in the surface of the water filtering hole reserved pipe are filled and protected through the multiple protection plugs, so that the situation that glue and other impurities generated in the laying process block the water filtering holes, and normal use is affected is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building drainage systems, and particularly relates to an inverted roof insulation layer drainage system and a construction method. BACKGROUND

[0002] The inverted roof is a common building roof structure, which generally includes a structural layer, a slope layer, a waterproof layer, an insulation layer, an isolation layer and a surface layer from bottom to top. The waterproof layer is arranged below the insulation layer in this roof structure, which can effectively avoid aging and cracking of the waterproof layer due to external temperature fluctuations, ultraviolet radiation or thermal expansion and contraction, thereby prolonging the service life of the waterproof layer to a certain extent and improving the overall durability of the building roof.

[0003] However, the inverted roof also has defects that cannot be ignored in the use process. Specifically, when the upper surface layer leaks due to local cracking or improper laying, rainwater will directly penetrate into the insulation layer. Since the insulation layer is usually made of foam board or extruded board with high water absorption, water accumulation is easy to occur in the insulation layer. In cold northern regions, when the penetrated water freezes in winter, it will directly act on the underlying waterproof layer, and long-term repeated freeze-thaw action will cause damage to the waterproof layer, thereby causing more serious leakage problems. To solve the above technical problems, in the prior art, a drainage pipe with filter holes on the surface is usually embedded in the structural layer during roof construction and connected with the roof drainage system, so that the water in the insulation layer can penetrate into the embedded pipe through the filter holes and be guided to the downpipe for drainage, thereby achieving drainage treatment of the insulation layer. However, in the actual construction process, a large amount of building materials with fluidity and adhesion such as glue, asphalt and concrete are needed. These materials are easy to enter the filter holes on the outer wall of the embedded pipe through gravity or adhesion during construction pouring or brushing, especially when the filter holes are upward or have no effective shielding, which is more likely to cause the filter holes to be blocked by adhesive materials. Once the filter holes are closed, the water in the insulation layer cannot be smoothly drained, thereby affecting the normal use of the drainage pipe.

[0004] Therefore, how to effectively prevent the construction materials from blocking the filter holes of the embedded pipe during construction without changing the advantages of the inverted roof structure is one of the key technical problems to be solved in the field. SUMMARY

[0005] The present application aims to provide an inverted roof insulation layer drainage system and a construction method to solve the problems in the background art.

[0006] The application provides a kind of inverted roof insulation layer drainage system, including variable-diameter reserved pipe and filter hole reserved pipe, the surface of the filter hole reserved pipe is provided with a plurality of structural layer filter holes, the inner wall of the filter hole reserved pipe is provided with two sliding grooves, the filter hole reserved pipe is provided with a protection assembly, the protection assembly is provided with a sliding part matched with the sliding groove, the upper end outer wall of the filter hole reserved pipe is fixedly installed with a concrete layer embedding ring, the concrete layer embedding ring is installed with a clamping unit clamped with the protection assembly; The protection assembly includes a plurality of protection plugs, a sliding block is slidingly installed in the sliding groove, and a filter cover is fixedly installed between the two sliding blocks. A sliding part is formed on the side of the filter cover. An installation opening is formed on the upper side of the filter cover. A dismounting unit is installed in the installation opening. The filter cover is installed with a lower mounting disc through the dismounting unit. A connecting column is fixedly installed on the upper side of the lower mounting disc. An upper mounting disc is fixedly installed on the top end of the connecting column. A plurality of sliding plates are slidingly installed between the upper mounting disc and the lower mounting disc. A plurality of extension rods are fixedly installed on one side of the sliding plate. The protection plug is installed at one end of the extension rod. A driving unit is rotatably installed on the upper side of the upper mounting disc.

[0007] Preferably, the driving unit includes a driving disc rotatably installed on the upper side of the upper mounting disc. A plurality of avoiding openings are formed on the upper side of the upper mounting disc. The avoiding openings are long holes arranged along the radial direction of the upper mounting disc. A driving pin is fixedly installed on the upper side of the connecting column. A plurality of arc-shaped guide openings are formed on the driving disc. The driving pin slidingly passes through the avoiding opening and the arc-shaped guide opening. The driving pin and the corresponding arc-shaped guide opening can relatively slide.

[0008] Preferably, the driving unit further includes a protection cover arranged in the concrete layer embedding ring. Two clamping grooves are formed on the side of the protection cover. A guide sleeve is fixedly installed on the lower side of the protection cover. The guide sleeve is a cylinder with a closed top end. Two rotating guide openings are formed on both sides of the lower part of the guide sleeve. A driving column is fixedly installed on the upper side of the driving disc. Two guide pins are fixedly installed on the side of the driving column. The driving column slidingly extends into the open end of the guide sleeve, so that the two guide pins slidingly extend into the corresponding rotating guide openings. A rotating pad is rotatably installed on the upper side of the driving column. A return spring is arranged between the rotating pad and the guide sleeve, and the return spring is in a compressed state.

[0009] Preferably, two sliding grooves are formed in the upper side of the concrete layer embedding ring, sliding blocks are slidably installed in the sliding grooves, clamping rods are fixedly installed on one side of the sliding blocks, one end of the clamping rod extends to the outer side of the inner wall of the concrete layer embedding ring, positioning springs are fixedly installed on the other side of the sliding blocks, the other end of the positioning spring is fixedly installed on the inner wall of the sliding groove, a poking block is fixedly installed on the upper side of the sliding block, and the poking block protrudes from the concrete layer embedding ring.

[0010] Preferably, the dismounting unit comprises two L-shaped clamping blocks, mirror image sliding holes are formed in the filter cover, two push rods are slidably installed in the sliding holes, the two push rods are symmetrically arranged on the two sides of the filter cover, L-shaped clamping blocks are fixedly installed on the adjacent ends of the two push rods, the L-shaped clamping blocks are arranged in an inverted manner, i.e., the horizontal part of the L-shaped clamping block is located on the upper side and faces the corresponding push rod, a positioning block is fixedly installed on the lower side of the lower mounting disc, a quick release groove is formed in the bottom of the positioning block, the bottom width of the quick release groove is greater than the top width, and a clamping part is formed at the top of the quick release groove, the L-shaped clamping block corresponds to the quick release groove and can extend into the quick release groove, and a tension spring is fixedly installed between the L-shaped clamping block and the inner wall of the mounting hole.

[0011] Preferably, the vertical section of the push rod is the same in size as the vertical section of the clamping rod, and the elastic coefficient of the positioning spring is greater than the elastic coefficient of the tension spring.

[0012] Preferably, two clamping blocks are fixedly installed on the inner wall of the variable-diameter reserved pipe, two clamping ports are formed in the surface of the water filtering hole reserved pipe, and the lower end of the water filtering hole reserved pipe extends into the large end of the variable-diameter reserved pipe, so that the clamping blocks enter the corresponding clamping ports.

[0013] Preferably, the outer end of the structure layer water filtering hole is arranged in an inclined manner higher than the inner end.

[0014] Preferably, a buckle groove is formed on the top of the protective cover to facilitate lifting.

[0015] The application also provides a construction method of the inverted roof insulation layer drainage system, comprising the following steps: S1, first, the variable-diameter reserved pipe is sleeved on the top end of the building embedded downpipe and is communicated, and then the structure layer construction is started; S2, according to the construction scheme of inverted roof, first pouring cast-in-place reinforced concrete roof panel, the variable diameter reserved pipe is poured in, and the variable diameter reserved pipe top is stretched out, then the structure slope layer and waterproof layer are constructed above, wherein the waterproof layer needs to extend into the variable diameter reserved pipe, forming a downwardly inverted waterproof layer structure, the inverted structure is above the clamping block, ensuring the waterproofness of the roof layer, then the filter hole reserved pipe is placed on the upper part of the variable diameter reserved pipe and is communicated, and the extruded polystyrene board insulation layer, non-woven fabric isolation layer and fine stone concrete protection layer are sequentially constructed above the waterproof layer, the filter hole reserved pipe is buried in the structure layer, and in the construction process, the structure layer filter hole opened on the surface of the filter hole reserved pipe is filled and protected by the plurality of protective plugs; S3, after the multi-layer structure layer is solidified and stabilized, the driving unit is pulled upwards, the plurality of sliding plates are driven to move close to each other by the driving unit, the corresponding protective plugs are driven away from the structure layer filter hole by the extension rods of the plurality of sliding plates, and the filter cover is retained on the top of the filter hole reserved pipe by removing the upper mounting disc and the lower mounting disc, and the construction of the drainage system is completed.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. By rotating and pressing the guide sleeve downward, the guide sleeve drives the guide pin to move, the guide pin drives the driving column to rotate, the two guide pins drive the driving disc to rotate, the driving disc drives the plurality of driving pins to move through the arc-shaped guide opening, the driving pins drive the sliding plates to move, and the sliding plates drive the corresponding protective plugs to insert into the structure layer filter hole through the extension rods.

[0017] 2. After the multi-layer structure layer is solidified and stabilized, the protective cover is pulled upwards to drive the guide sleeve to move upwards, the guide sleeve drives the two guide pins to move through the rotating guide opening, the two guide pins drive the driving disc to rotate, the driving disc drives the plurality of driving pins to move through the arc-shaped guide opening, the driving pins drive the sliding plates to move, and the sliding plates drive the corresponding protective plugs to shrink, so that the protective plugs are separated from the structure layer filter hole.

[0018] 3. When the protective plug head is separated from the structural layer filter hole, continue to pull up, drive the upper mounting disc to move through the guide pin located at the bottom of the rotating guide port, the upper mounting disc drives the lower guide plate to move up through the connecting column, the lower guide plate drives the positioning block to move up, the positioning block drives the filter cover to move up under the action of the two sliding blocks, when moving to the concrete layer embedded ring inner wall, one end of the two push rods and one end of the clamping rod are attached, at this time, the clamping rod is inserted into the sliding hole by the positioning spring pushing the clamping rod, with the two push rods pushing in, drive the two L-shaped clamping blocks to approach each other, make the two L-shaped clamping blocks and the positioning block separate, so as to pull out the structure from the filter hole reserved pipe except the filter cover, reuse, leave the filter cover in the upper pipe opening position of the filter hole reserved pipe, and filter the impurities in the filter hole reserved pipe. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further explained in combination with the drawings and examples: Figure 1 is the overall structure schematic diagram of the application; Figure 2 is the variable-diameter reserved pipe cross-sectional structure schematic diagram of the application; Figure 3 is the filter hole reserved pipe cross-sectional structure schematic diagram of the application; Figure 4 is the protective assembly structure schematic diagram of the application; Figure 5 is Figure 4 the structure enlarged schematic diagram of area A in the figure; Figure 6 is the concrete layer embedded ring cross-sectional structure schematic diagram of the application; Figure 7 is Figure 6 the structure enlarged schematic diagram of area B in the figure; Figure 8 is the filter cover cross-sectional structure schematic diagram of the application; Figure 9 is Figure 8 the structure enlarged schematic diagram of area C in the figure; Figure 10 is the structure schematic diagram of the filter hole reserved pipe; Figure 11 is the structure schematic diagram of the drainage system after construction.

[0020] Explanation of reference signs: 1, variable-diameter reserved pipe; 2, water filtering hole reserved pipe; 3, concrete layer embedding ring; 4, protective cover; 5, protective plug; 6, clamping interface; 7, clamping block; 8, filter cover; 9, extension rod; 10, connecting column; 11, sliding block; 12, lower mounting disc; 13, sliding plate; 14, guide sleeve; 15, return spring; 16, rotating pad; 17, driving column; 18, driving disc; 19, driving pin; 20, avoiding port; 21, upper mounting disc; 22, arc-shaped guide port; 23, rotating guide port; 24, guide pin; 25, buckling groove; 26, clamping rod; 27, push block; 28, positioning spring; 29, sliding block; 30, push rod; 31, positioning block; 32, tension spring; 33, L-shaped clamping block; 34, structural layer water filtering hole; 35, fine stone concrete protective layer; 36, non-woven fabric isolation layer; 37, extruded polystyrene board thermal insulation layer; 38, waterproof layer; 39, slope-finding layer; 40, cast-in-place reinforced concrete roof panel. DETAILED DESCRIPTION

[0021] The application will be further described below in connection with specific embodiments, however, it should be understood by those skilled in the art that the detailed description given in connection with the drawings is for better explanation, and the structure of the application certainly exceeds the limited embodiments, and for some equivalent alternatives or common means, the detailed description will not be given here, but still belongs to the protection scope of the application.

[0022] Figures 1-11 is the best embodiment of the application, and the following will be described in connection with the drawings Figures 1-11 to further illustrate the application.

[0023] As Figures 1-11 shown, an inverted roof thermal insulation layer drainage system, comprising a variable-diameter reserved pipe 1 and a water filtering hole reserved pipe 2, a plurality of structural layer water filtering holes 34 are formed on the pipe wall of the water filtering hole reserved pipe 2, two axial sliding grooves are formed on the inner wall of the water filtering hole reserved pipe 2, a protective assembly is arranged in the water filtering hole reserved pipe 2, a sliding part matched with the sliding grooves is arranged on the protective assembly, a concrete layer embedding ring 3 is fixedly installed on the outer wall of the upper end of the water filtering hole reserved pipe 2, and a clamping unit clamping the protective assembly is installed on the concrete layer embedding ring 3.

[0024] The protection assembly comprises a plurality of protection plugs 5, sliding grooves are slidably arranged with sliding blocks 11, the same filter cover 8 is fixedly arranged between the two sliding blocks 11, a sliding part is formed on the side of the filter cover 8, an installation opening is formed on the upper side of the filter cover 8, the installation opening is arranged with a dismounting unit, the filter cover 8 is arranged with a lower mounting disc 12 through the dismounting unit, the lower mounting disc 12 is fixedly arranged with a connecting column 10 on the upper side, the connecting column 10 is fixedly arranged with an upper mounting disc 21 on the top, a plurality of sliding plates 13 are slidably arranged between the upper mounting disc 21 and the lower mounting disc 12, a plurality of extension rods 9 are fixedly arranged on one side of the sliding plate 13, the protection plug 5 is arranged on one end of the extension rod 9, and the upper mounting disc 21 is arranged with a driving unit.

[0025] Through the above structure, the water filtering hole reserved pipe 2 is pre-buried in the structure layer, a plurality of structure layer water filtering holes 34 are arranged on the pipe wall at equal intervals, the number of protection plugs 5 in the protection assembly is consistent with the structure layer water filtering holes 34, the protection plug 5 is composed of an internal metal framework and an external silica gel soft package, which can meet the design of the inclined surface of the structure layer water filtering hole 34 while ensuring the tightness, prevent the movement interference, drive the plurality of sliding plates 13 to move under the action of the driving unit, and insert the protection plug 5 into the corresponding structure layer water filtering hole 34 through the extension rod 9, provide sealing protection when laying the structure layer, prevent impurities from entering, and ensure the normal operation of the later drainage function.

[0026] Further, the driving unit comprises a driving disc 18, the driving disc 18 is rotatably arranged on the upper side of the upper mounting disc 21, a plurality of avoiding openings 20 are formed on the upper side of the upper mounting disc 21, the avoiding opening 20 is a long hole arranged along the radial direction of the upper mounting disc 21, the upper side of the connecting column 10 is fixedly arranged with a driving pin 19, a plurality of arc-shaped guide openings 22 are formed on the driving disc 18, the driving pin 19 is slidably arranged in the corresponding arc-shaped guide opening 22 after passing through the avoiding opening 20, and the driving pin 19 and the corresponding arc-shaped guide opening 22 can slide relative to each other.

[0027] Through the above structure, the driving unit is arranged at the central position of the water filtering hole reserved pipe 2 and penetrates the whole water filtering hole reserved pipe 2, which comprises the driving disc 18, the driving pin 19 and the arc-shaped guide opening 22, wherein the number of the driving pin 19 and the arc-shaped guide opening 22 is consistent, the driving pin 19 can be driven to move along the central radial trajectory to approach or move away from each other after the structure layer is solidified, so as to separate the protection plug 5 from the structure layer water filtering hole 34. The structure can be operated without damaging the upper layer material after the structure layer is solidified, which is convenient for later maintenance and ensures the rapid recovery of the drainage function, avoiding the damage of the structure caused by the long-term retention of water in the insulation layer.

[0028] Further, the driving unit further comprises a protective cover 4 arranged in the concrete layer embedding ring 3, two clamping grooves are formed in the side of the protective cover 4, a guide sleeve 14 is fixedly installed on the lower side of the protective cover 4, the guide sleeve 14 is a cylinder with a closed top end, two rotating guide openings 23 are formed in the lower sides of the guide sleeve 14, a driving column 17 is fixedly installed on the upper side of the driving disc 18, two guide pins 24 are fixedly installed on the side of the driving column 17, the driving column 17 is slidably inserted into the open end of the guide sleeve 14, so that the two guide pins 24 are slidably inserted into the corresponding rotating guide openings 23, a rotating pad 16 is rotatably installed on the upper side of the driving column 17, a return spring 15 is arranged between the rotating pad 16 and the guide sleeve 14, and the return spring 15 is in a compressed state.

[0029] Through the above structure, the protective cover 4 seals the upper end of the water filtering hole reserved pipe 2, the protective cover 4 is coaxially installed with the guide sleeve 14 on the lower side, when the guide sleeve 14 is pushed downward, the two guide pins 24 drive the driving column 17 to rotate, the driving column 17 drives the driving disc 18 to rotate, and the plurality of protective plugs 5 are inserted into the structural layer water filtering hole 34, and vice versa. The return spring 15 and the rotating pad 16 installed in the guide sleeve 14 can reset the guide sleeve 14, help the protective plugs 5 to pull out the structural layer water filtering hole 34, and the protective cover 4 seals the pipe opening of the water filtering hole reserved pipe 2 during construction, forms secondary protection for the structural layer water filtering hole 34, prevents mortar and concrete from splashing into the hole, and ensures the system sealing property. The sliding assembly structure realizes tool-free quick installation and disassembly, which is beneficial to construction convenience and maintainability.

[0030] Further, two sliding grooves are formed in the upper side of the concrete layer embedding ring 3, a sliding block 29 is slidably installed in the sliding groove, a clamping rod 26 is fixedly installed on one side of the sliding block 29, one end of the clamping rod 26 extends to the outer side of the inner wall of the concrete layer embedding ring 3, a positioning spring 28 is fixedly installed on the other side of the sliding block 29, the other end of the positioning spring 28 is fixedly installed on the inner wall of the sliding groove, a push block 27 is fixedly installed on the upper side of the sliding block 29, and the push block 27 protrudes from the concrete layer embedding ring 3.

[0031] Through the above structure, the radius of the concrete layer embedding ring 3 is greater than the radius of the water filtering hole reserved pipe 2, when pre-buried, the concrete layer embedding ring 3 needs to be kept horizontal with the uppermost layer of concrete layer, the clamping rod 26 is matched with the clamping groove, the clamping rod 26 is pushed into the clamping groove by the positioning spring 28 and the sliding block 29, the fixation of the protective cover 4 is completed, the reliable limiting of the protective cover 4 before and after construction is realized, the displacement of the protective cover 4 under the influence of large-area construction and vibration is prevented, and the structural stability is improved.

[0032] Further, the dismounting unit comprises two L-shaped clamping blocks 33, the filter cover 8 is provided with mirror image sliding holes, two push rods 30 are slidingly installed in the sliding holes, the two push rods 30 are symmetrically arranged on the two sides of the filter cover 8, one end of each of the two push rods 30 is fixedly installed with an L-shaped clamping block 33, the L-shaped clamping block 33 is arranged in an inverted manner, that is, the horizontal part of the L-shaped clamping block 33 is located on the upper side and faces the corresponding push rod 30 on the side, the lower side of the lower mounting disc 12 is fixedly installed with a positioning block 31, the bottom of the positioning block 31 is provided with a quick release groove, the bottom of the quick release groove is wider than the top, and a clamping part is formed at the top of the quick release groove, the L-shaped clamping block 33 corresponds to the quick release groove and can extend into the quick release groove, and a tension spring 32 is fixedly installed between the L-shaped clamping block 33 and the inner wall of the mounting hole.

[0033] By the above structure, the dismounting unit is arranged between the lower mounting disc 12 and the filter cover 8 and is composed of two symmetrically installed L-shaped clamping blocks 33 and one side corresponding push rod 30, and two tension springs 32 are used to pull the two L-shaped clamping blocks 33 in opposite directions, so that the L-shaped clamping block 33 is always clamped in the quick release groove of the positioning block 31, and the horizontal part of the L-shaped clamping block 33 is clamped into the clamping part of the quick release groove, thereby connecting the filter cover 8 and the lower mounting disc 12, and when dismounting, the two push rods 30 are pushed towards the inside of the filter cover 8, so that the clamping state of the two L-shaped clamping blocks 33 and the quick release groove is unlocked, thereby separating the filter cover 8 and the lower mounting disc 12. This structure facilitates the replacement of the filter cover 8 or the cleaning of the hole in the later use, and improves the safety and maintainability of the overall system.

[0034] Further, the vertical section of the push rod 30 is the same as that of the clamping rod 26, and the elastic coefficient of the positioning spring 28 is greater than that of the tension spring 32.

[0035] By the above structure, the size of the clamping rod 26 is the same as that of the push rod 30, when the filter cover 8 moves to the highest position, one end of each of the two push rods 30 abuts one end of the corresponding clamping rod 26, at this time, due to the fact that the elastic coefficient of the positioning spring 28 is greater than that of the tension spring 32, the clamping rod 26 is pushed into the sliding hole together with the push rod 30, the two push rods 30 drive the two L-shaped clamping blocks 33 to move close to each other, the two L-shaped clamping blocks 33 are separated from the positioning block 31, thereby enabling the protective assembly to be taken out, and the filter cover 8 at the bottom is left at the upper pipe opening position of the water filtering hole reserved pipe 2, the water filtering hole reserved pipe 2 is filtered of impurities, and the structure layer water filtering hole 34 provided on the water filtering hole reserved pipe 2 is protected.

[0036] Further, the inner wall of the variable-diameter reserved pipe 1 is fixedly installed with two clamping blocks 7, the surface of the water filtering hole reserved pipe 2 is provided with two clamping holes 6, and the lower end of the water filtering hole reserved pipe 2 extends into the large end of the variable-diameter reserved pipe 1, so that the clamping blocks 7 enter the corresponding clamping holes 6.

[0037] By the above structure, two clamping blocks 7 are symmetrically installed on the lower part of the inner wall of the variable-diameter reserved pipe 1, which is composed of an inner skeleton of a cylinder and a silica gel ring wrapped outside the inner skeleton, and two clamping interfaces 6 are located on the lower side of the surface of the water filtering hole reserved pipe 2, which is in a horizontal L shape. When installing, the bent waterproof layer 38 is above the clamping block 7 and does not interfere with the clamping interface 6, so that the clamping block 7 can be normally installed. The terminal locking position is provided with a release port of the soft silica gel material on the surface of the clamping block 7. When the clamping block 7 reaches this position, the soft silica gel material is released to fix the water filtering hole reserved pipe 2, realize the butt joint of the water filtering hole reserved pipe 2 and the variable-diameter reserved pipe 1, avoid the shaking caused by direct connection, and reduce the drainage failure rate in later use, ensuring the water tightness of the structure.

[0038] Further, the structural layer water filtering hole 34 is inclinedly arranged with the outer end higher than the inner end.

[0039] By the above structure, the structural layer water filtering hole 34 is inclinedly arranged, which is convenient for liquid collection and automatic flow into the lumen to form a flow guiding path. The structure improves the water flow guiding performance through geometric shape adjustment, reduces the risk of water retention in the insulation layer, and can quickly guide the water flowing into the concrete layer out to avoid reverse seepage into the insulation layer, which is beneficial to improve the overall drainage efficiency of the roof system.

[0040] Further, the protective cover 4 is provided with a buckle groove 25 on the top for easy pulling.

[0041] By the above structure, the buckle groove 25 is used for manual pulling, which is convenient for the operator to easily disassemble. At the same time, it avoids covering the device on the upper side with mud and other substances during the process of laying the structural layer, which causes damage to the surrounding structure during disassembly, enhances the flexibility and durability of the system.

[0042] Working principle: when the device is used, the variable-diameter reserved pipe 1 is sleeved on the top end of the building embedded downpipe and is communicated, and then the structural layer construction is started; according to the construction scheme of inverted roof, 120mm thick cast-in-place reinforced concrete roof slab 40 is poured first, the variable-diameter reserved pipe 1 is poured in, and the variable-diameter reserved pipe 1 protrudes on the top, then the structural sloping layer 39 and the waterproof layer 38 are constructed on the top, then the water filtering hole reserved pipe 2 is placed on the upper part of the variable-diameter reserved pipe 1 and is communicated, and then 130mm thick extruded polystyrene board insulation layer 37, non-woven fabric isolation layer 36 and 40mm thick C20 fine stone concrete protective layer 35 are constructed in sequence on the top of the waterproof layer 38, and the water filtering hole reserved pipe 2 is buried in the structural layer. During the construction process, the structural layer water filtering hole 34 on the surface of the water filtering hole reserved pipe 2 is filled and protected by the plurality of protective plugs 5; A waterproof layer 38 is formed by a 2mm thick non-curing rubber asphalt waterproof coating and a 3mm thick SBS polyester waterproof membrane, wherein the SBS polyester waterproof membrane needs to extend into the variable diameter reserved tube 1 to form a downward inward-turned structure of the waterproof membrane. The inward-turned structure is above the clamping block 7 to ensure the waterproofness of the roof layer. The water filter hole reserved tube 2 is pre-buried in the structural layer. During the laying process, the structural layer water filter holes 34 opened on the surface of the water filter hole reserved tube 2 are filled and protected by multiple protective plugs 5 to prevent impurities such as glue generated during laying from clogging the structural layer water filter holes 34 and affecting normal use.

[0043] After the multi-layer structural layer solidifies and stabilizes, first manually move the shift block 27, and the shift block 27 drives the sliding block 29 to move, and the sliding block 29 drives the clamping rod 26 to disengage the clamping groove, so that the protective cover 4 pops up, and then manually buckle the buckle groove 25 and pull it upward. During the pulling process, the protective cover 4 drives the guide sleeve 14 to move upward, and the guide sleeve 14 drives the two guide pins 24 to move by rotating the guide port 23, and the two guide pins 24 drive the drive disk 18 to rotate, and the drive disk 18 drives multiple drive pins 19 to move through the arc-shaped guide port 22, and the drive pins 19 drive the sliding plate 13 to move, and the sliding plate 13 drives the corresponding protective plug 5 to retract through the extension rod 9, so that the protective plug 5 is separated from the water filter hole 34 of the structural layer.

[0044] After the protective plug 5 is separated from the water filter hole 34 of the structural layer, it continues to be pulled upward, and the upper mounting plate 21 is driven to move through the guide pin 24 at the bottom of the rotating guide port 23. The upper mounting plate 21 drives the lower guide plate to move upward through the connecting column 10, and the lower guide plate drives the positioning block 31 to move upward. The positioning block 31 drives the filter cover 8 to fit the water filter hole reserved pipe 2 upward under the action of the two sliders 11 through the two L-shaped blocks 33 and the push rod 30. When it moves to the inner wall of the concrete layer embedded ring 3, the two push rods 30 The end of the clamping rod 26 is fitted with the end of the clamping rod 26. At this time, the clamping rod 26 is pushed by the positioning spring 28 to push the push rod 30 in and insert the clamping rod 26 into the sliding hole. As the two push rods 30 are pushed in, the two L-shaped clamping blocks 33 are driven to approach each other, so that the two L-shaped clamping blocks 33 are disengaged from the positioning block 31, thereby pulling out the structure except the filter cover 8 from the water filter hole reserved pipe 2 for reuse, and leaving the filter cover 8 at the upper pipe mouth position of the water filter hole reserved pipe 2 to filter impurities in the water filter hole reserved pipe 2, and completing the installation of the device.

[0045] The present invention also provides a method for constructing an inverted roof insulation layer drainage system, comprising the following steps: S1. First, install the variable diameter reserved pipe 1 on the top of the pre-buried downpipe of the building and connect them, and then start the structural layer construction; S2, according to the construction scheme of inverted roof, first pouring cast-in-place reinforced concrete roof panel 40, the variable diameter reserved pipe 1 is poured in, and the variable diameter reserved pipe 1 is stretched out at the top, then the structure slope layer 39 and the waterproof layer 38 are constructed above, wherein the waterproof layer 38 needs to extend into the variable diameter reserved pipe 1, form the waterproof layer 38 inward turning structure, the turning structure is above the clamping block 7, ensure the waterproofness of the roof layer, then the filter hole reserved pipe 2 is placed on the upper part of the variable diameter reserved pipe 1 and is communicated, the extruded polystyrene board insulation layer 37, non-woven fabric isolation layer 36 and fine stone concrete protection layer 35 are sequentially constructed above the waterproof layer 38, the filter hole reserved pipe 2 is buried in the structure layer, in the process of construction, the structure layer filter hole 34 opened on the surface of the filter hole reserved pipe 2 is filled and protected by the plurality of protective plugs 5, to prevent the glue and other impurities generated during laying from blocking the filter hole and affecting normal use; S3, after the multi-layer structure layer is solidified and stable, the driving unit is pulled upwards, the plurality of sliding plates 13 are driven to approach each other by the driving unit, the plurality of sliding plates 13 drive the corresponding protective plugs 5 to move away from the structure layer filter hole 34 through the extension rod 9, and the filter cover 8 is retained at the top position of the filter hole reserved pipe 2 by removing the upper mounting disc 21 and the lower mounting disc 12, and the construction of the drainage system is completed.

[0046] The above is only the preferred embodiment of the present application, and is not intended to limit the other forms of the present application. Any person skilled in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical solution of the present application.

Claims

1. An inverted roof insulation layer drainage system, comprising a variable diameter reserved pipe (1) and a filter hole reserved pipe (2), characterized in that: The surface of the water filter hole reserved pipe (2) is provided with a plurality of structural layer water filter holes (34), the inner wall of the water filter hole reserved pipe (2) is provided with two sliding grooves, a protective component is provided in the water filter hole reserved pipe (2), a sliding portion that matches the sliding groove is provided on the protective component, a concrete layer embedded ring (3) is fixedly installed on the outer wall of the upper end of the water filter hole reserved pipe (2), and a clamping unit for clamping the protective component is installed on the concrete layer embedded ring (3); The protective assembly comprises a plurality of protective plugs (5), a slider (11) is slidably mounted in the sliding groove, a filter cover (8) is fixedly mounted between two of the sliders (11), a sliding portion is formed on the side of the filter cover (8), a mounting opening is provided on the upper side of the filter cover (8), a disassembly unit is mounted on the mounting opening, a lower mounting plate (12) is mounted on the filter cover (8) through the disassembly unit, a connecting column (10) is fixedly mounted on the upper side of the lower mounting plate (12), an upper mounting plate (21) is fixedly mounted on the top of the connecting column (10), a plurality of sliding plates (13) are slidably mounted between the upper mounting plate (21) and the lower mounting plate (12), a plurality of extension rods (9) are fixedly mounted on one side of the sliding plate (13), the protective plug (5) is mounted on one end of the extension rod (9), and a driving unit is rotatably mounted on the upper side of the upper mounting plate (21).

2. The inverted roof insulation layer drainage system according to claim 1, characterized in that: The drive unit includes a drive disk (18), the drive disk (18) is rotatably mounted on the upper side of an upper mounting disk (21), a plurality of avoidance openings (20) are provided on the upper side of the upper mounting disk (21), the avoidance openings (20) are long holes arranged along the radial direction of the upper mounting disk (21), a drive pin (19) is fixedly mounted on the upper side of the connecting column (10), a plurality of arc-shaped guide openings (22) are provided on the drive disk (18), the drive pin (19) slides through the avoidance openings (20) and the arc-shaped guide openings (22), and the drive pin (19) and the corresponding arc-shaped guide openings (22) can slide relative to each other.

3. The inverted roof insulation layer drainage system according to claim 2, characterized in that: The drive unit also includes a protective cover (4), which is arranged in the concrete layer embedded ring (3), and the side of the protective cover (4) is provided with two clamping grooves, and the lower side of the protective cover (4) is fixedly installed with a guide sleeve (14), and the guide sleeve (14) is a cylinder with a closed top, and the lower two sides of the guide sleeve (14) are provided with a rotation guide opening (23), and the upper side of the driving disc (18) is fixedly installed with a driving column (17), and the side of the driving column (17) is fixedly installed with two guide pins (24), and the driving column (17) slides into the open end of the guide sleeve (14), so that the two guide pins (24) can slide into the corresponding rotation guide opening (23), and the upper side of the driving column (17) is rotatably installed with a rotating pad (16), and a return spring (15) is provided between the rotating pad (16) and the guide sleeve (14), and the return spring (15) is in a compressed state.

4. The inverted roof insulation layer drainage system according to claim 1, characterized in that: Two slide grooves are provided on the upper side of the concrete layer embedded ring (3), and a sliding block (29) is slidably installed in the slide groove. A clamping rod (26) is fixedly installed on one side of the sliding block (29), and one end of the clamping rod (26) extends to the outer side of the inner wall of the concrete layer embedded ring (3). A positioning spring (28) is fixedly installed on the other side of the sliding block (29), and the other end of the positioning spring (28) is fixedly installed on the inner wall of the slide groove. A shifting block (27) is fixedly installed on the upper side of the sliding block (29), and the shifting block (27) is protruding from the concrete layer embedded ring (3).

5. The inverted roof insulation layer drainage system according to claim 4, characterized in that: The disassembly unit comprises two L-shaped blocks (33), a mirror-image sliding hole is provided on the filter cover (8), and two push rods (30) are slidably installed in the sliding hole. The two push rods (30) are symmetrically arranged on both sides of the filter cover (8), and an L-shaped block (33) is fixedly installed on one adjacent end of the two push rods (30). The L-shaped block (33) is inverted, that is, the horizontal part of the L-shaped block (33) is located on the upper side, and the horizontal part is arranged toward the push rod (30) on the corresponding side. A positioning block (31) is fixedly installed on the lower side of the lower mounting plate (12), and a quick-release groove is provided at the bottom of the positioning block (31). The bottom width of the quick-release groove is greater than the width of the top, and a clamping portion is formed at the top of the quick-release groove. The L-shaped block (33) corresponds to the quick-release groove and can extend into the quick-release groove. A tension spring (32) is fixedly installed between the L-shaped block (33) and the inner wall of the mounting opening.

6. The inverted roof insulation layer drainage system according to claim 5, characterized in that: The vertical cross-section of the push rod (30) is the same as the vertical cross-section of the connecting rod (26), and the elastic coefficient of the positioning spring (28) is greater than the elastic coefficient of the tension spring (32).

7. The inverted roof insulation layer drainage system according to claim 1, characterized in that: Two clamping blocks (7) are fixedly mounted on the inner wall of the variable diameter reserved pipe (1), and two clamping interfaces (6) are provided on the surface of the water filter hole reserved pipe (2). The lower end of the water filter hole reserved pipe (2) extends into the large end of the variable diameter reserved pipe (1), so that the clamping blocks (7) enter the corresponding clamping interfaces (6).

8. The inverted roof insulation layer drainage system according to claim 1, characterized in that: The outer end of the structural layer water filtering hole (34) is higher than the inner end and is inclined.

9. The inverted roof insulation layer drainage system according to claim 3, characterized in that: The top of the protective cover (4) is provided with a buckle groove (25) for facilitating lifting.

10. A method for constructing an inverted roof insulation layer drainage system according to any one of claims 1 to 9, characterized in that: The steps include: S1. First, the variable diameter reserved pipe (1) is placed on the top of the pre-buried downpipe of the building and connected, and then the structural layer construction is started; S2, according to the construction scheme of the inverted roof, first cast the cast-in-place reinforced concrete roof panel (40), cast the variable diameter reserved pipe (1) inside, and the top of the variable diameter reserved pipe (1) extends out, and then construct the structural slope layer (39) and the waterproof layer (38) on the top, wherein the waterproof layer (38) needs to extend into the variable diameter reserved pipe (1), forming a waterproof layer (38) downward inverted structure, the inverted structure is above the clamping block (7), and ensures the waterproofness of the roof layer, and then place the water filter hole reserved pipe (2) on the upper part of the variable diameter reserved pipe (1) and connect it, and construct the extruded polystyrene board insulation layer (37), non-woven fabric isolation layer (36), and fine stone concrete protective layer (35) in sequence above the waterproof layer (38), bury the water filter hole reserved pipe (2) in the structural layer, and fill and protect the water filter hole (34) opened on the surface of the water filter hole reserved pipe (2) through multiple protective plugs (5) during the construction process; S3. After the multi-layer structure layer solidifies and stabilizes, the driving unit is pulled upwards, and the multiple sliding plates (13) are driven to approach each other through the driving unit. The multiple sliding plates (13) drive the corresponding protective plugs (5) away from the water filter holes (34) of the structure layer through the extension rod (9), and the upper mounting plate (21) and the lower mounting plate (12) are removed to retain the filter cover (8) at the top position of the water filter hole reserved pipe (2), thereby completing the construction of the drainage system.

Images