A kind of water room cast-in-place slab on flanging integral cast-in-place mould

Abstract

The application discloses a kind of water room cast-in-place slab upper edge turning over integral cast-in-place mould, it is related to building waterproof technical field, including outside mould, inside mould, end mould, first connecting unit and second connecting unit, outside mould is fixedly connected in the corresponding position of plate bottom mould outside by outer support fixed unit, inside mould is fixedly connected in the corresponding position of plate bottom mould inside by inner support fixed unit, outer support fixed unit top end is locked with inner support fixed unit top end by first connecting unit, end mould is set to the frame end opening formed by outside mould and inside mould, and end mould is locked with outer support fixed unit and inner support fixed unit by second connecting unit.The application can realize the integral pouring of water room wall bottom cast-in-place slab upper edge turning over and floor slab, replace the error method of traditional upper edge turning over concrete secondary pouring, fundamentally guarantee the construction quality and waterproof performance of cast-in-place slab upper edge turning over concrete.

Description

Technical Field

[0001] This invention relates to the field of building waterproofing technology, and in particular to an integral cast-in-place mold for flanged edges on a cast-in-place slab in a room with water. Background Technology

[0002] During the use of civil buildings, kitchens, bathrooms, and other rooms are constantly exposed to water, making wall and floor leakage a common and significant quality issue in construction projects. This is especially true at the junction of the floor slab and the secondary structural walls, where capillary seepage is highly likely to occur, leading to wall corrosion, peeling, mold, and environmental pollution. Furthermore, subsequent repairs are difficult, and effective waterproofing is challenging, severely impacting the normal work and lives of users. Therefore, building designs typically employ a 150-200mm high concrete sill at the bottom of the walls surrounding rooms exposed to water. This sill is poured simultaneously with the beams and slabs, with a width equal to the wall itself, to block seepage channels and achieve a self-waterproofing effect for the concrete structure. This practice is already included in national standards and specifications. Article 9.1.6 of the "Code for Acceptance of Construction Quality of Masonry Structures" (GB50203-2011) stipulates that "when lightweight aggregate concrete small hollow blocks or autoclaved aerated concrete blocks are used to construct walls in kitchens, toilets, bathrooms, etc., a concrete sill with a height of 150mm should be cast at the bottom of the wall." Article 4.10.11 of the "Code for Acceptance of Construction Quality of Building Ground Engineering" (GB50209-2010) also stipulates that "the floor slabs of toilets, bathrooms, and rooms with waterproofing requirements should have concrete upturns around the perimeter, except for door openings, with a height of not less than 200mm, a width equal to the wall thickness, and a concrete strength grade not less than C20." This article is a mandatory provision, and in order to prevent leakage in toilets, bathrooms, and building floors with waterproofing requirements, it puts forward regulations to ensure the quality of the floor structure.

[0003] In actual engineering implementation, due to the lack of necessary familiarity with and implementation of national standards by construction personnel, and the lack of effective and reliable tools and methods for simultaneous casting of the upturned edge and the beam / slab, the traditional construction of the upturned edge of cast-in-place slabs generally adopts a two-stage casting method. This results in unreliable construction quality and waterproofing effects, leading to many drawbacks.

[0004] 1. The edge of the cast-in-place slab after secondary pouring is a sporadic concrete component. The attention and supervision on site are often insufficient. The formwork, supports and other materials are often recycled and substandard. The volume of concrete is small and it is often mixed on site, which can easily lead to poor quality of finished product and failure to meet the design function.

[0005] 2. The secondary pouring did not meet the standard requirements for the treatment of the base layer. The joint measures such as roughening and cleaning of the cast-in-place slab surface at the edge were not in place. A horizontal construction joint was formed between the separately poured cast-in-place slab and the upper edge. The joint surface was not bonded and had poor integrity, posing a serious risk of leakage.

[0006] 3. The conventional method for reinforcing the upper side formwork of secondary pouring is to fix the bottom of the formwork by drilling holes with an electric hammer and anchoring steel bars in the cast-in-place slab. The anchor holes of the steel bars are generally not sealed on site to stop water, which creates multiple vertical holes inside the cast-in-place slab, increasing the risk of vertical leakage in the cast-in-place floor, especially in rooms with water.

[0007] 4. Due to the need for drainage, cast-in-place slabs in rooms with water often adopt a lowered slab design. However, it is difficult to meet the standard for the straightness of the edges of the lowered slab. When the upper edge is poured for the second time, the side formwork on the side of the room with water cannot be tightly attached to the vertical surface of the lowered slab. At the same time, there are gaps at the bottom of the formwork, which will lead to serious grout leakage from the formwork. Defects such as honeycomb and rotten roots will occur in the upper edge concrete, weakening the concrete structural performance and waterproof function, and making it difficult to remove the formwork and wasting materials.

[0008] 5. The secondary pouring of the upper edge requires a special team to carry out formwork erection, pouring, and formwork removal and maintenance one by one. The operation process is complicated, which increases the workload of the secondary structure, slows down the turnover of formwork, reduces work efficiency, and increases labor costs, material costs and management costs.

[0009] 6. The masonry construction can only proceed after the concrete of the upper edge has reached a certain strength, which takes up the overall construction period of the secondary structure and has an adverse impact on the project progress management. Summary of the Invention

[0010] In view of this, the present invention provides an integral cast-in-place mold with flanges on a cast-in-place slab in a water-bearing room, in order to solve the problems mentioned in the background art.

[0011] A cast-in-place mold for flanged edges on a water-filled slab includes an outer mold, an inner mold, an end mold, a first connecting unit, and a second connecting unit. The outer mold is fixedly connected to the corresponding position on the outside of the bottom mold of the slab by an outer support fixing unit. The inner mold is fixedly connected to the corresponding position on the inside of the bottom mold of the slab by an inner support fixing unit. The top ends of the outer support fixing unit and the inner support fixing unit are locked together by the first connecting unit. The end mold is located at the end opening of the frame formed by the outer mold and the inner mold. The end mold is locked together with the outer support fixing unit and the inner support fixing unit by the second connecting unit.

[0012] Furthermore, the outer support fixing unit includes an upper outer support member and a lower outer support member. An outer angle steel is fixedly provided at the top and bottom of the outer side of the outer mold. The bottom end of the lower outer support member is fixedly connected to the corresponding position on the outer side of the bottom mold. The upper outer support member passes through the outer angle steel rib located at the top and bottom and is fixedly connected to the top of the lower outer support member.

[0013] Furthermore, the lower outer section support includes a lower outer section support fixing rod, the bottom of which is welded with an outer thick steel plate, which is anchored to the corresponding position on the outer side of the bottom mold, and the top of which is threaded with an external threaded sleeve; the upper outer section support includes an upper outer section support fixing rod, the top of which passes through the transverse rib of the upper outer angle steel and is locked to the upper outer angle steel by an external fixing nut, the bottom of which passes through the transverse rib of the lower outer angle steel and is threaded to the external threaded sleeve, and the bottom wall of the transverse rib of the lower outer angle steel abuts against the top wall of the external threaded sleeve.

[0014] Furthermore, the inner support fixing unit includes an inner upper section support member and an inner lower section support member. An inner angle steel is fixedly provided at the top and bottom of the outer side of the inner mold. The bottom end of the inner lower section support member is fixedly connected to the corresponding position on the inner side of the bottom mold. The inner upper section support member passes through the transverse rib of the inner angle steel located at the top and bottom and is fixedly connected to the top of the inner lower section support member.

[0015] Furthermore, the inner lower section support includes an inner lower section support fixing rod, the bottom of which is welded with an inner thick steel plate, which is anchored to the corresponding position on the inner side of the bottom mold, and the top of which is threaded with an internal threaded sleeve; the inner upper section support includes an inner upper section support fixing rod, the top of which passes through the transverse rib of the inner angle steel at the top and is locked and fixed to the inner angle steel at the top by an internal fixing nut, the bottom of which passes through the transverse rib of the inner angle steel at the bottom and is threaded to the internal threaded sleeve, and the bottom wall of the transverse rib of the inner angle steel at the bottom abuts against the top wall of the internal threaded sleeve.

[0016] Furthermore, the first connecting unit is a tie member, which includes a fixing block, a drive shaft, a gear, and a rotating handle. The fixing block has a through groove, and the rotating handle is rotatably positioned at the center of the top wall of the fixing block. One end of the drive shaft is fixedly connected to the rotating handle, and the other end extends through the top wall of the fixing block into the through groove and is fixedly connected to the gear. An outer telescopic rod is slidably disposed at one end of the through groove, and an inner telescopic rod is slidably disposed at the other end. The outer telescopic rod has an outer groove at its insertion end, and the outer groove has external teeth. The external teeth mesh with the front half of the gear. The inner telescopic rod has an inner groove at its inlet end, and internal teeth are provided on the inner groove. The internal teeth mesh with the rear half of the gear. The end of the external telescopic rod away from the external teeth is sleeved on the top of the outer upper section support fixing rod and locked to the outer angle steel at the top by an external fixing nut. The end of the inner telescopic rod away from the internal teeth is sleeved on the top of the inner upper section support fixing rod and locked to the inner angle steel at the top by an inner fixing nut.

[0017] Furthermore, the rotating handle is provided with a locking element to prevent the rotating handle from rotating.

[0018] Furthermore, the tie rod located at the external corner adjusts the length of the outer telescopic rod and the inner telescopic rod according to the straight-line distance between the inner upper section support fixing rod longitudinally near the external corner and the inner upper section support fixing rod laterally near the external corner; the end of the outer telescopic rod located at the external corner away from the external teeth is sleeved on the top of the inner upper section support fixing rod longitudinally near the external corner, and is locked and fixed to the inner angle steel located at the top by an inner fixing nut; the end of the inner telescopic rod located at the external corner away from the internal teeth is sleeved on the top of the inner upper section support fixing rod laterally near the external corner, and is locked and fixed to the inner angle steel located at the top by an inner fixing nut.

[0019] Furthermore, the tie rod located at the inside corner adjusts the length of the outer telescopic rod and the inner telescopic rod according to the straight-line distance between the outer upper section support fixing rod longitudinally near the inside corner and the outer upper section support fixing rod laterally near the inside corner; the end of the outer telescopic rod located at the inside corner away from the outer teeth is sleeved on the top of the outer upper section support fixing rod longitudinally near the inside corner, and is locked and fixed to the outer angle steel located at the top by an outer fixing nut; the end of the inner telescopic rod located at the inside corner away from the inner teeth is sleeved on the top of the outer upper section support fixing rod laterally near the inside corner, and is locked and fixed to the outer angle steel located at the top by an outer fixing nut.

[0020] Furthermore, the second connecting unit comprises an outer hook bolt and an inner hook bolt. Angle steel II is fixedly provided at the top and bottom of the outer side of the end mold. One end of the outer hook bolt at the top is connected to the top position of the outer upper section support fixing rod, and the other end is fixedly connected to the outer end of the angle steel II at the top. One end of the outer hook bolt at the bottom is connected to the bottom position of the outer upper section support fixing rod, and the other end is fixedly connected to the outer end of the angle steel II at the bottom. One end of the inner hook bolt at the top is connected to the top position of the inner upper section support fixing rod, and the other end is fixedly connected to the inner end of the angle steel II at the top. One end of the inner hook bolt at the bottom is connected to the bottom position of the inner upper section support fixing rod, and the other end is fixedly connected to the inner end of the angle steel II at the bottom.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention enables the integral casting of the flanged edge on the bottom of the cast-in-place slab of the four walls of a room with water, replacing the traditional method of secondary casting of the flanged concrete. It overcomes the shortcomings of current flanged formwork processes, such as poor quality, high material input, and excessive labor and materials. It fundamentally guarantees the construction quality and waterproof performance of the flanged concrete on the cast-in-place slab, completely solving the common quality problem of leakage at the base of walls in rooms with water. Furthermore, the overall mold structure is simple, easy to manufacture, highly versatile, has a high turnover rate, and is easy and quick to install and disassemble. It offers high construction accuracy, stable and reliable support, and can be used for flanged construction of various design sections. This simplifies the construction process, reduces the workload of secondary structures and the overall construction period, consumes fewer auxiliary materials, saves significant material and labor costs, improves work efficiency, effectively reduces costs, and accelerates construction progress. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the present invention installed on the bottom mold of the plate.

[0025] Figure 2 This is a schematic diagram of the outer mold in this invention.

[0026] Figure 3 for Figure 2 Sectional view of AA.

[0027] Figure 4 This is a schematic diagram of the structure of the outer lower section support member in this invention.

[0028] Figure 5 This is a schematic diagram of the structure of the outer upper support member in this invention.

[0029] Figure 6 This is a schematic diagram of the end mold in this invention.

[0030] Figure 7 for Figure 6 BB section view.

[0031] Figure 8 This is a top view of the tie member in this invention.

[0032] Figure 9 This is a schematic diagram of the internal structure of the tie member in this invention.

[0033] Figure 10 This is a schematic diagram of the structure of the tie member connecting the inner mold and the outer mold in this invention.

[0034] Figure 11 This is a schematic diagram of the structure of the end mold connecting to the outer mold in this invention.

[0035] Figure 12 This is a schematic diagram of the structure installed on the bottom formwork of the slab (where there is a cast-in-place beam).

[0036] In the figure:

[0037] 1. Outer mold; 2. One outer dovetail screw; 3. One outer angle steel; 4. Outer upper section support fixing rod; 5. Outer fixing nut; 6. Tie piece; 6-1. Fixing block; 6-2. Outer telescopic rod; 6-21. Outer groove; 6-22. Outer tooth; 6-23. One outer bolt hole; 6-3. Inner telescopic rod; 6-31. Inner groove; 6-32. Inner tooth; 6-33. One inner bolt hole; 6-4. Gear; 6-5. Drive shaft; 6-6. Rotating handle; 6-7. Locking piece; 7. External threaded sleeve; 8. Outer lower section support fixing rod; 9. Outer cast-in-place steel plate. 10. Outer thick steel plate; 11. Bottom formwork of slab; 12. Two outer dovetail nails; 13. Two outer bolt holes; 14. End formwork; 15. Two angle steels; 16. Three bolt holes; 17. Three dovetail nails; 18. Outer hook bolts; 19. Vertical reinforcing ribs; 20. Flat steel connectors; 21. Cast-in-place beam; 22. Inner side formwork; 23. One inner dovetail nail; 24. One inner angle steel; 25. Inner upper section support fixing rod; 26. Inner fixing nut; 27. Inner threaded sleeve; 28. Inner lower section support fixing rod; 29. ​​Inner cast-in-place slab reinforcing bars; 30. Inner thick steel plate; 31. Two inner dovetail nails. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0041] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0043] Example 1:

[0044] See appendix Figure 1-12This invention discloses an integral cast-in-place mold for flanged edges on a cast-in-place slab in a water-filled room, comprising an outer mold 1, an inner mold 22, an end mold 14, a first connecting unit, and a second connecting unit. The outer mold 1 is fixedly connected to the corresponding position on the outside of the bottom mold 11 of the slab by an outer support fixing unit, and the inner mold 22 is fixedly connected to the corresponding position on the inside of the bottom mold 11 of the slab by an inner support fixing unit. The top ends of the outer support fixing unit and the inner support fixing unit are locked together by the first connecting unit. The end mold 14 is disposed at the end opening of the frame formed by the outer mold 1 and the inner mold 22, and the end mold 14 is locked together with the outer support fixing unit and the inner support fixing unit by the second connecting unit.

[0045] In this embodiment, the outer mold 1, the inner mold 22, and the end mold 14 are all 15mm thick double-sided film-coated wood plywood templates. The height of the outer mold 1 is the height from the top surface of the outer floor slab (thickness h1) to the top of the upper flange. The height of the inner mold 22 is the height from the top surface of the inner floor slab (thickness h2) to the top of the upper flange. The height of the end mold 14 is the height from the top surface of the outer floor slab (thickness h1) to the top of the upper flange.

[0046] The outer support fixing unit includes an upper outer support member and a lower outer support member. An outer angle steel 3 is fixedly provided on the top and bottom of the outer side of the outer mold 1. The bottom end of the lower outer support member is fixedly connected to the corresponding position on the outside of the bottom mold 11. The upper outer support member passes through the transverse ribs of the outer angle steel 3 located at the top and bottom and is fixedly connected to the top of the lower outer support member.

[0047] In this embodiment, the outer angle steel 3 is a 50*50*5mm angle steel with the same length as the outer mold 1. The outer angle steel 3 is drilled with an outer bolt hole 13 along the center line of the plane. The outer bolt hole 13 is a φ16 bolt hole. The outer bolt hole 13 is 200mm away from both ends of the outer angle steel 1, and the spacing is ≤800mm. The outer angle steel 3 is anchored to the outer mold 1 using an outer dovetail nail 1. The spacing between the anchor nails is 100mm. The outer dovetail nail 1 is an M4*20 self-tapping and self-drilling dovetail nail.

[0048] In this embodiment, the outer angle steel 3 at the top is flush with the top of the outer mold 1, and the outer angle steel 3 at the bottom is 35mm away from the bottom of the outer mold 1.

[0049] The lower outer section support includes an outer lower section support fixing rod 8. An outer thick steel plate 10 is welded to the bottom of the lower outer section support fixing rod 8. The outer thick steel plate 10 is anchored to the corresponding position on the outside of the bottom mold 11. An outer threaded sleeve 7 is threaded to the top of the lower outer section support fixing rod 8. The upper outer section support includes an upper outer section support fixing rod 4. The top of the upper outer section support fixing rod 4 passes through the transverse rib of the outer angle steel 3 located at the top and is locked and fixed to the outer angle steel 3 located at the top by an outer fixing nut 5. The bottom of the upper outer section support fixing rod 4 passes through the transverse rib of the outer angle steel 3 located at the bottom and is threaded to the outer threaded sleeve 7. The bottom wall of the transverse rib of the outer angle steel 3 located at the bottom abuts against the top wall of the outer threaded sleeve 7.

[0050] In this embodiment, the lower outer section support fixing rod 8 is made of Ф14 steel bar, and its length is the thickness of the outer floor slab cast-in-place slab h1 + 14mm. The bottom center of the lower outer section support fixing rod 8 is welded with an outer thick steel plate 10, with a fillet weld height of 5mm. The outer thick steel plate 10 is a 3mm thick square steel plate base with a side length of 80mm. During welding, a clamp is used to fix it to ensure that the lower outer section support fixing rod 8 is vertical. The external threaded sleeve 7 is an M14 rolled straight thread sleeve. The lower outer section support fixing rod 8 extends into the external threaded sleeve 7 by 14mm, and the external threaded sleeve 7 still has a remaining thread length of 21mm. The upper outer section support fixing rod 4 is made of Ф14 steel bar, and its length is the height of the outer mold 1 + 40mm. The bottom thread length of the upper outer section support fixing rod 4 is 21mm, which just extends into the external threaded sleeve 7.

[0051] The inner support fixing unit includes an inner upper section support and an inner lower section support. Inner angle steel 24 is fixedly provided on the top and bottom of the outer side of the inner mold 22. The bottom end of the inner lower section support is fixedly connected to the corresponding position on the inner side of the bottom mold 11. The inner upper section support passes through the transverse ribs of the inner angle steel 24 located at the top and bottom and is fixedly connected to the top of the inner lower section support.

[0052] In this embodiment, the inner angle steel 24 is a 50*50*5mm angle steel with the same length as the inner mold 22. The inner angle steel 24 is drilled with inner bolt holes 2 along the center line of the plane. The inner bolt holes 2 are φ16 bolt holes. The distance between the inner bolt holes 2 and the two ends of the inner angle steel 2 is 200mm and the spacing is ≤800mm. The inner angle steel 24 is anchored to the inner mold 22 using inner dovetail nails 23. The spacing between the anchor nails is 100mm. The inner dovetail nails 23 are M4*20 self-tapping and self-drilling dovetail nails.

[0053] In this embodiment, the inner angle steel 24 at the top is flush with the top of the inner mold 22, and the inner angle steel 24 at the bottom is 35mm away from the bottom of the inner mold 22.

[0054] The inner lower section support includes an inner lower section support fixing rod 28. An inner thick steel plate 30 is welded to the bottom of the inner lower section support fixing rod 28. The inner thick steel plate 30 is anchored to the corresponding position on the inner side of the bottom mold 11. An inner threaded sleeve 27 is threaded to the top of the inner lower section support fixing rod 28. The inner upper section support includes an inner upper section support fixing rod 25. The top of the inner upper section support fixing rod 25 passes through the transverse rib of the inner angle steel 24 located at the top and is locked and fixed to the inner angle steel 24 located at the top by an inner fixing nut 26. The bottom of the inner upper section support fixing rod 25 passes through the transverse rib of the inner angle steel 24 located at the bottom and is threaded to the inner threaded sleeve 27. The bottom wall of the transverse rib of the inner angle steel 24 located at the bottom abuts against the top wall of the inner threaded sleeve 27.

[0055] In this embodiment, the lower inner section support fixing rod 28 is made of Ф14 steel bar, and its length is the thickness of the inner floor slab cast-in-place slab h2 + 14mm. The bottom center of the lower inner section support fixing rod 28 is welded with an inner thick steel plate 30, with a fillet weld height of 5mm. The inner thick steel plate 30 is a square steel plate base with a thickness of 3mm and a side length of 80mm. During welding, a clamp is used to fix it to ensure that the lower inner section support fixing rod 28 is vertical. The inner threaded sleeve 27 is an M14 rolled straight thread sleeve. The lower inner section support fixing rod 28 extends into the inner threaded sleeve 27 by 14mm, and the inner threaded sleeve 27 still has a thread length of 21mm. The upper inner section support fixing rod 25 is made of Ф14 steel bar, and its length is the height of the inner mold 22 + 40mm. The bottom thread length of the upper inner section support fixing rod 25 is 21mm, which extends into the inner threaded sleeve 27.

[0056] The first connecting unit is a tie member 6, which includes a fixing block 6-1, a drive shaft 6-5, a gear 6-4, and a rotating handle 6-6. The fixing block 6-1 has a through groove. The rotating handle 6-6 is rotatably positioned at the center of the top wall of the fixing block 6-1. One end of the drive shaft 6-5 is fixedly connected to the rotating handle 6-6, and the other end extends through the top wall of the fixing block 6-1 into the through groove and is fixedly connected to the gear 6-4. An outer telescopic rod 6-2 is slidably mounted on one end of the through groove, and an inner telescopic rod 6-3 is slidably mounted on the other end. The outer telescopic rod 6-2 has an outer groove 6-21 at its insertion end, and the outer groove 6-21 has external teeth 6-2. 2. The external tooth 6-22 meshes with the front half of the gear 6-4. The inner extension rod 6-3 has an inner groove 6-31 at its inlet end, and an internal tooth 6-32 on the inner groove 6-31. The internal tooth 6-32 meshes with the rear half of the gear 6-4. The end of the external extension rod 6-2 away from the external tooth 6-22 is sleeved on the top of the outer upper section support fixing rod 4 and locked with the outer angle steel 3 at the top by the outer fixing nut 5. The end of the inner extension rod 6-3 away from the internal tooth 6-32 is sleeved on the top of the inner upper section support fixing rod 25 and locked with the inner angle steel 24 at the top by the inner fixing nut 26.

[0057] In this embodiment, driving the rotating handle 6-6 can drive the gear 6-4 to rotate, thereby causing the inner telescopic rod 6-3 and the outer telescopic rod 6-2 to move in opposite directions or in opposite directions, adjusting the overall length of the tie member 6.

[0058] In this embodiment, the outer telescopic rod 6-2 has an external thread 6-23 at the end away from the external tooth 6-22, and the inner telescopic rod 6-3 has an internal thread 6-33 at the end away from the internal tooth 6-32. Both the external thread 6-23 and the internal thread 6-33 are φ16 bolt holes.

[0059] The rotating handle 6-6 is equipped with a locking element 6-7, which is used to lock the rotating handle 6-6 from rotating, thereby fixing the adjusted length of the tie member 6.

[0060] The tie rod 6 located at the external corner adjusts the lengths of the outer telescopic rod 6-2 and the inner telescopic rod 6-3 according to the straight-line distance between the inner upper section support fixing rod 25 located longitudinally near the external corner and the inner upper section support fixing rod 25 located laterally near the external corner. The end of the outer telescopic rod 6-2 located at the external corner away from the outer tooth 6-22 is sleeved on the top of the inner upper section support fixing rod 25 located longitudinally near the external corner, and is locked and fixed to the inner angle steel 24 located at the top by the inner fixing nut 26. The end of the inner telescopic rod 6-3 located at the external corner away from the inner tooth 6-32 is sleeved on the top of the inner upper section support fixing rod 25 located laterally near the external corner, and is locked and fixed to the inner angle steel 24 located at the top by the inner fixing nut 26.

[0061] In this embodiment, the longitudinal inner mold 22 and the transverse inner mold 22 at the external corner are joined together, and the length difference between the transverse inner mold 22 and the length of the inner angle steel 24 set thereon is 65mm; the longitudinal outer mold 1 and the transverse outer mold 1 at the internal corner are joined together perpendicularly.

[0062] The tie rod 6 located at the inside corner adjusts the length of the outer telescopic rod 6-2 and the inner telescopic rod 6-3 according to the straight distance between the longitudinal upper section support fixing rod 4 near the inside corner and the transverse upper section support fixing rod 4 near the inside corner. The end of the outer telescopic rod 6-2 located at the inside corner away from the outer tooth 6-22 is sleeved on the top of the longitudinal upper section support fixing rod 4 near the inside corner and locked and fixed to the outer angle steel 3 located at the top by the outer fixing nut 5. The end of the inner telescopic rod 6-3 located at the inside corner away from the inner tooth 6-32 is sleeved on the top of the transverse upper section support fixing rod 4 near the inside corner and locked and fixed to the outer angle steel 3 located at the top by the outer fixing nut 5.

[0063] The second connecting unit consists of an outer hook bolt 18 and an inner hook bolt. Angle steel 15 is fixedly installed on the top and bottom of the outer side of the end mold 14. One end of the outer hook bolt 18 at the top is connected to the top position of the outer upper section support fixing rod 4, and the other end is fixedly connected to the outer end of the angle steel 15 at the top. One end of the outer hook bolt 18 at the bottom is connected to the bottom position of the outer upper section support fixing rod 4, and the other end is fixedly connected to the outer end of the angle steel 15 at the bottom. One end of the inner hook bolt at the top is connected to the top position of the inner upper section support fixing rod 25, and the other end is fixedly connected to the inner end of the angle steel 15 at the top. One end of the inner hook bolt at the bottom is connected to the bottom position of the inner upper section support fixing rod 25, and the other end is fixedly connected to the inner end of the angle steel 15 at the bottom.

[0064] In this implementation, angle steel 215 is a 50*50*5mm angle steel with the same length as end mold 14. The length of end mold 14 is the wall thickness + 130mm. Two bolt holes 316 are drilled along the center line of the facade of angle steel 215 at the top and bottom. Bolt holes 316 are φ12 bolt holes. Bolt holes 316 are 25mm away from both ends of angle steel 215. Angle steel 215 is anchored to end mold 14 using dovetail nails 317 with a spacing of 100mm. Dovetail nails 317 are M4*20 self-tapping and self-drilling dovetail nails.

[0065] In this embodiment, the top angle steel 15 is flush with the top of the end mold 14, and the bottom angle steel 15 is 35mm away from the bottom of the end mold 14.

[0066] In this embodiment, both the outer hook bolt 18 and the inner hook bolt are M10 hook bolts.

[0067] Material requirements for this embodiment:

[0068] (1) Steel: Q235-B is used, and its material complies with the relevant provisions of GB / T1591-2008 "Low Alloy High Strength Structural Steel" and GB / T700-2006 "Carbon Structural Steel". All exposed iron parts are coated with two coats of micaceous iron oxide alkyd anti-rust paint.

[0069] (2) Reinforcing steel: HRB400 steel bars are used, and the standard strength value of the steel bars has a guarantee rate of not less than 95%.

[0070] (3) Welding rods: Welding is done by manual arc welding, and E4303 type welding rods are selected.

[0071] (4) Bolts: all are grade B, made of Q235-B steel, and comply with the relevant provisions of GB / T5782-2000.

[0072] (5) Straight thread sleeve: The thread profile should be full and free from defects such as cracks and severe corrosion. The performance of the connection joint should meet the design requirements and the provisions of the "General Technical Specification for Mechanical Connection of Reinforcing Steel Bars" JGJ-107-2003.

[0073] The operation steps in this embodiment are as follows:

[0074] (1) Technical briefing

[0075] Before installing the outer mold 1, inner mold 22, and end mold 14, the carpentry team received a technical briefing, which explained the assembly and installation methods in detail. The key points and quality standards for each step were clearly defined, and the installation accuracy was required to be controlled within the allowable deviation of the construction specifications.

[0076] (2) Laying the bottom formwork

[0077] First, erect a cast-in-place slab ground-mounted steel pipe scaffold, using φ48×3mm seamless steel pipes as the poles. Then, lay the bottom formwork joists, using 50×70mm square timber laid on the crossbars of the support, with a center-to-center spacing of 250mm. The bottom formwork 11 is made of 15mm thick double-sided film-coated plywood nailed to the wooden joists. Adjust the bottom formwork elevation to meet the design requirements.

[0078] (3) Measuring the chalk line

[0079] ① Mark the control lines for the outer mold 1, inner mold 22, end mold 14, outer lower section support fixing rod 8, and inner lower section support fixing rod 28 on the bottom mold 11 with red paint. The center line of the outer lower section support fixing rod 8 is 40mm from the edge line of the outer mold 1, and the center line of the inner lower section support fixing rod 28 is 40mm from the edge line of the inner mold 22.

[0080] ② If there is a cast-in-place beam at the installation location, that is, the beam is turned upside down, and the center line of the outer lower section support fixing rod 8 is 40mm away from the outer side of the formwork 1.

[0081] (4) Install the support positioning rod

[0082] After the reinforcement of the cast-in-place beam is tied, the center of the lower outer section support fixing rod 8 is aligned with the control line position, and the outer thick steel plate 10 welded to the bottom of the lower outer section support fixing rod 8 is anchored to the bottom formwork of the cast-in-place slab using the outer dovetail nail 12 according to the spacing of the outer bolt hole 13. The top of the lower outer section support fixing rod 8 is screwed into the outer threaded sleeve 7.

[0083] Align the center of the inner lower section support fixing rod 28 with the control ink line position, and according to the spacing of the inner bolt holes, anchor the inner thick steel plate 30 welded to the bottom of the inner lower section support fixing rod 28 to the bottom formwork 11 of the cast-in-place slab using the inner dovetail nail 31, and screw the inner threaded sleeve 27 into the top of the inner lower section support fixing rod 28.

[0084] In this embodiment, both the outer dovetail screw 12 and the inner dovetail screw 31 are M4*16 self-drilling dovetail screws.

[0085] (5) Tying the reinforcing steel bars of the cast-in-place slab

[0086] Mark the spacing of the cast-in-place slab reinforcement according to the design drawings, distribute the lower layer of reinforcement, mark the spacing on the lower layer of reinforcement, and then distribute the upper layer of reinforcement. Tie all the longitudinal and transverse intersections with lead wire. Set protective layer spacers for the bottom slab reinforcement. Weld the bottom of the outer lower section support fixing rod 8 to the outer cast-in-place slab reinforcement 9 mesh, and weld the bottom of the inner lower section support fixing rod 28 to the inner cast-in-place slab reinforcement 29.

[0087] (6) Install the side mold and fix it securely.

[0088] ① Insert the upper outer section support fixing rod 4 into the outer bolt holes 13 reserved in the outer angle steel 3 at the top and bottom of the outer outer mold 1. Align the joint of the upper outer section support fixing rod 4 and the lower outer section support fixing rod 8 with the axis and screw them into the external thread sleeve 7. Use a torque wrench to tighten the thread at the center of the external thread sleeve 7 until the torque wrench makes a sound. The lower outer section support fixing rod 8 is screwed into the external thread sleeve 7 for a length of 17mm. The bottom surface of the external thread sleeve 7 is flush with the top surface of the outer cast-in-place plate. The transverse rib of the outer angle steel 3 at the bottom is supported on the top of the external thread sleeve 7.

[0089] Insert the upper inner section support fixing rod 25 into the inner bolt holes 2 reserved in the inner angle steel 24 at the top and bottom of the inner side mold 22. Align the joint of the upper inner section support fixing rod 25 and the lower inner section support fixing rod 28 with the axis and screw them into the inner threaded sleeve 27. Use a torque wrench to tighten the thread at the center of the inner threaded sleeve 27 until the torque wrench makes a sound. The lower inner section support fixing rod 28 is screwed into the inner threaded sleeve 27 for a length of 17mm. The bottom surface of the inner threaded sleeve 27 is flush with the top surface of the inner cast-in-place slab. The transverse rib of the inner angle steel 24 located at the bottom is supported on the top of the inner threaded sleeve 27.

[0090] After adjusting the elevation and verticality of the outer mold 1 and the inner mold 22 to meet the requirements, the top of the outer upper section support fixing rod 4 is inserted into the outer bolt hole 6-23 of the outer telescopic rod 6-2, and the inner upper section support fixing rod 25 is inserted into the inner bolt hole 6-33 of the inner telescopic rod 6-3. The outer upper section support fixing rod 4 and the outer telescopic rod 6-2 are locked together using the outer fixing nut 5, and the inner upper section support fixing rod 25 and the inner telescopic rod 6-3 are locked together using the inner fixing nut 26, so as to realize the connection and locking of the outer mold 1 and the inner mold 22, forming a stable support and hanging mold system.

[0091] ② If there is a cast-in-place beam at the installation location, i.e., an upturned edge on the beam, the inner mold 22 is installed as described above. After the outer mold 1 is connected and locked to the inner upper section support fixing rod 25 through the external threaded sleeve 7, the top of the outer upper section support fixing rod 4 passes through the outer bolt hole 6-23. Another steel bar vertical rib 19 is prepared. The steel bar vertical rib 19 is a Ф14 steel bar with threaded upper part. A bolt hole 4 is also reserved on the outer telescopic rod 6-2 near the outer bolt hole 6-23. The steel bar vertical rib 19 is sequentially inserted into the bolt hole 4, located at... The outer bolt holes 13 on the outer angle steel 13 at the top and bottom serve as reinforcing vertical ribs of the outer mold 1. The outer upper section support fixing rod 4 and the outer telescopic rod 6-2 are locked by the outer fixing nut 5. The steel bar vertical rib 19, the outer telescopic rod 6-2 and the outer angle steel 13 are locked by the outer fixing nut 5. A flat steel connector 20 is also provided. The flat steel connector 20 has a size of 50*5mm. The flat steel connector 20 and the outer fixing nut 5 are horizontally connected to the bottom of the outer upper section support fixing rod 4 and the bottom of the steel bar vertical rib 19 to form a support system.

[0092] ③ Corner assembly reinforcement: Apply sealing strips to the junction of internal and external corners to prevent grout leakage. For the tie rod 6 located at the external corner, adjust the lengths of the outer telescopic rod 6-2 and the inner telescopic rod 6-3 according to the straight-line distance between the longitudinal upper section support fixing rod 25 near the external corner and the transverse upper section support fixing rod 25 near the external corner. The end of the outer telescopic rod 6-2 located at the external corner, away from the outer tooth 6-22, is sleeved on the top of the longitudinal upper section support fixing rod 25 near the external corner, and connected to the inner angle steel 2 at the top via the inner fixing nut 26. 4. Locking and fixing: The end of the inner telescopic rod 6-3 located at the external corner away from the inner tooth 6-32 is sleeved on the top of the inner upper section support fixing rod 25 near the external corner, and is locked and fixed to the inner angle steel 24 located at the top by the inner fixing nut 26; the longitudinal inner mold 22 and the transverse inner mold 22 at the external corner are joined together, and the length difference between the transverse inner mold 22 and the length of the inner angle steel 24 set on it is 65mm; the longitudinal outer mold 1 and the transverse outer mold 1 at the internal corner are joined vertically to ensure that the overall template assembly is tightly closed.

[0093] (7) Install door end mold

[0094] The end mold 14 is perpendicular to the outer mold 1 and the inner mold 22, with the top surfaces flush. Sealing strips are applied at the junction. Using the bolt holes 16 on both sides of the angle steel 15 of the end mold 14, the outer hook bolts 18 are inserted and connected to the outer upper section support rod 4. The inner hook bolts are inserted and connected to the inner upper section support rod 25. At the doorway, according to the height of the lowered floor of the water-filled room, 50*50mm square timber is used to connect the inner mold 22 to the fixed support.

[0095] (8) Concrete pouring

[0096] The upturned edge concrete is poured integrally with the cast-in-place beams and slabs in one go. On-site quality inspectors check the formwork position and elevation, formwork reinforcement, and the quality of rebar binding and installation. Once the design and specification requirements are met, the formwork is submitted for inspection and acceptance. Concrete pouring can then proceed. Ready-mixed concrete is pumped into the formwork. The concrete temperature upon entering the formwork should not be lower than 5℃ or higher than 35℃. When the daily average temperature reaches 30℃ or higher, cooling measures are implemented according to high-temperature construction requirements. When the daily average temperature is below 5℃ for five consecutive days, winter construction measures are implemented. High-altitude operations are suspended in winds exceeding level 6, and concrete pouring is prohibited in rainy weather. When pouring concrete, avoid directly impacting the formwork body with the poured concrete. During vibration, avoid the vibrator touching the formwork body to prevent displacement of the formwork body due to impact and vibration.

[0097] First, pour the beam and slab concrete, then pause for a while, wait for the beam and slab concrete to be vibrated and compacted, and pour the top edge concrete before initial setting. The surface of the slab and the top edge are finished in two steps: first, find the elevation and scrape the surface level, then tamp it with a wooden trowel; second, before the concrete sets and there are no footprints when stepping on it, tamp it with a wooden trowel to prevent shrinkage cracks from forming after the surface moisture evaporates.

[0098] After the concrete is poured, people should not be allowed to enter the site too early. Within 12 hours after pouring, the concrete should be covered and watered to maintain sufficient moisture. The curing period should be no less than 7 days.

[0099] (9) Disassemble and clean the mold for later use.

[0100] The formwork can only be removed when the concrete on the upper edge reaches the demolding strength and its surface and edges are not damaged during demolding. After demolding, the mortar should be cleaned and a release agent should be applied for reuse. The removed parts should be collected and sorted.

[0101] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A one-piece cast-in-place mold with flanged edges for a water-bearing room slab, characterized in that, The system includes an outer mold (1), an inner mold (22), an end mold (14), a first connecting unit, and a second connecting unit. The outer mold (1) is fixedly connected to the corresponding position on the outside of the bottom mold (11) by an outer support fixing unit. The inner mold (22) is fixedly connected to the corresponding position on the inside of the bottom mold (11) by an inner support fixing unit. The top end of the outer support fixing unit and the top end of the inner support fixing unit are locked together by the first connecting unit. The end mold (14) is located at the end opening of the frame formed by the outer mold (1) and the inner mold (22). The end mold (14) is locked together with the outer support fixing unit and the inner support fixing unit by the second connecting unit. The outer support fixing unit includes an upper outer support member and a lower outer support member. An outer angle steel (3) is fixedly provided on the top and bottom of the outer side of the outer mold (1). The bottom end of the lower outer support member is fixedly connected to the corresponding position on the outside of the bottom mold (11). The upper outer support member passes through the transverse ribs of the outer angle steel (3) located at the top and bottom and is fixedly connected to the top of the lower outer support member. The lower outer section support includes an outer lower section support fixing rod (8), the bottom of which is welded with an outer thick steel plate (10), the outer thick steel plate (10) is anchored to the corresponding position on the outside of the bottom mold (11), and the top of the lower outer section support fixing rod (8) is threadedly connected to an outer threaded sleeve (7); the upper outer section support includes an upper outer section support fixing rod (4), the top of which passes through the transverse rib of the upper outer angle steel (3) located at the top, and is locked and fixed to the upper outer angle steel (3) located at the top by an outer fixing nut (5), the bottom of which passes through the transverse rib of the lower outer angle steel (3) located at the bottom and is threadedly connected to the outer threaded sleeve (7), the bottom wall of the transverse rib of the lower outer angle steel (3) located at the bottom abuts against the top wall of the outer threaded sleeve (7); The inner support fixing unit includes an inner upper section support and an inner lower section support. The top and bottom of the outer side of the inner mold (22) are fixed with an inner angle steel (24). The bottom end of the inner lower section support is fixedly connected to the corresponding position inside the bottom mold (11). The inner upper section support passes through the transverse ribs of the inner angle steel (24) located at the top and bottom and is fixedly connected to the top of the inner lower section support. The lower inner section support includes an inner lower section support fixing rod (28), the bottom of which is welded with an inner thick steel plate (30), the inner thick steel plate (30) is anchored to the corresponding position of the inner side of the bottom mold (11), and the top of the lower inner section support fixing rod (28) is threadedly connected to an inner threaded sleeve (27); the upper inner section support includes an upper inner section support fixing rod (25), the top of which passes through the transverse rib of the inner angle steel (24) located at the top, and is locked and fixed to the inner angle steel (24) located at the top by an inner fixing nut (26), the bottom of which passes through the transverse rib of the inner angle steel (24) located at the bottom and is threadedly connected to the inner threaded sleeve (27), the bottom wall of the transverse rib of the inner angle steel (24) located at the bottom abuts against the top wall of the inner threaded sleeve (27); The first connecting unit is a tie member (6), which includes a fixing block (6-1), a drive shaft (6-5), a gear (6-4), and a rotating handle (6-6). The fixing block (6-1) has a through groove. The rotating handle (6-6) is rotatably positioned at the center of the top wall of the fixing block (6-1). One end of the drive shaft (6-5) is fixedly connected to the rotating handle (6-6), and the other end extends through the top wall of the fixing block (6-1) into the through groove and is fixedly connected to the gear (6-4). An outer telescopic rod (6-2) is slidably disposed at one end of the through groove, and an inner telescopic rod (6-3) is slidably disposed at the other end. The outer telescopic rod (6-2) has an outer groove (6-21) at its insertion end, and an outer tooth (6-22) is provided on the outer groove (6-21). The external tooth (6-22) meshes with the front half of the gear (6-4). The inner telescopic rod (6-3) has an inner groove (6-31) at its inlet end. The inner groove (6-31) has an internal tooth (6-32). The internal tooth (6-32) meshes with the rear half of the gear (6-4). The end of the external telescopic rod (6-2) away from the external tooth (6-22) is sleeved on the top of the outer upper section support fixing rod (4) and locked with the outer angle steel (3) at the top by the outer fixing nut (5). The end of the inner telescopic rod (6-3) away from the internal tooth (6-32) is sleeved on the top of the inner upper section support fixing rod (25) and locked with the inner angle steel (24) at the top by the inner fixing nut (26).

2. The integral cast-in-place mold for flanged edges on a cast-in-place slab in a water-bearing room according to claim 1, characterized in that, The rotating handle (6-6) is provided with a locking element (6-7) for locking the rotating handle (6-6) from rotating.

3. The integral cast-in-place mold for flanged edges on a cast-in-place slab in a water-bearing room according to claim 2, characterized in that, The tie member (6) located at the external corner adjusts the length of the outer telescopic rod (6-2) and the inner telescopic rod (6-3) according to the straight distance between the inner upper section support fixing rod (25) located longitudinally near the external corner and the inner upper section support fixing rod (25) located laterally near the external corner; the end of the outer telescopic rod (6-2) located at the external corner away from the outer tooth (6-22) is sleeved on the top of the inner upper section support fixing rod (25) located longitudinally near the external corner, and is locked and fixed with the inner angle steel one (24) located at the top by the inner fixing nut (26); the end of the inner telescopic rod (6-3) located at the external corner away from the inner tooth (6-32) is sleeved on the top of the inner upper section support fixing rod (25) located laterally near the external corner, and is locked and fixed with the inner angle steel one (24) located at the top by the inner fixing nut (26).

4. The integral cast-in-place mold for flanged edges on a cast-in-place slab in a water-bearing room according to claim 2, characterized in that, The tie member (6) located at the inside corner adjusts the length of the outer telescopic rod (6-2) and the inner telescopic rod (6-3) according to the straight distance between the outer upper section support fixing rod (4) located longitudinally near the inside corner and the outer upper section support fixing rod (4) located laterally near the inside corner; the end of the outer telescopic rod (6-2) located at the inside corner away from the outer tooth (6-22) is sleeved on the top of the outer upper section support fixing rod (4) located longitudinally near the inside corner, and is locked and fixed with the outer angle steel one (3) located at the top by the outer fixing nut (5); the end of the inner telescopic rod (6-3) located at the inside corner away from the inner tooth (6-32) is sleeved on the top of the outer upper section support fixing rod (4) located laterally near the inside corner, and is locked and fixed with the outer angle steel one (3) located at the top by the outer fixing nut (5).

5. The integral cast-in-place mold for flanged edges on a cast-in-place slab in a water-bearing room according to claim 2, characterized in that, The second connecting unit consists of an outer hook bolt (18) and an inner hook bolt. Angle steel two (15) is fixedly provided on the top and bottom of the outer side of the end mold (14). One end of the outer hook bolt (18) located at the top is connected to the top position of the outer upper section support fixing rod (4), and the other end is fixedly connected to the outer end of the angle steel two (15) located at the top. One end of the outer hook bolt (18) located at the bottom is connected to the bottom position of the outer upper section support fixing rod (4), and the other end is fixedly connected to the outer end of the angle steel two (15) located at the bottom. One end of the inner hook bolt located at the top is connected to the top position of the inner upper section support fixing rod (25), and the other end is fixedly connected to the inner end of the angle steel two (15) located at the top. One end of the inner hook bolt located at the bottom is connected to the bottom position of the inner upper section support fixing rod (25), and the other end is fixedly connected to the inner end of the angle steel two (15) located at the bottom.

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