Sunken toilet reverse step shaping template

Abstract

The utility model relates to a sinking type toilet reverse ridge shaping mould plate belongs to sinking type toilet, reverse ridge construction field, sinking type toilet reverse ridge shaping mould plate is located in cast-in-place reverse ridge both sides, and is supported in cast-in-place floor slab side bottom mould plate, and is formed by cross arm beam, reverse ridge inside mould, reverse ridge outside mould, support block, link beam and conical cylinder support, construction method includes bottom mould plate support, conical cylinder support production and positioning installation, reverse ridge outside mould and support block installation, cross arm beam and reverse ridge inside mould installation, link beam installation, integrated pouring concrete, shaping mould plate dismantling, conical cylinder support dismantling, expansion mortar filling, cast-in-place reverse ridge cross arm beam both sides form door type fixed structure through link beam, and fixed reliable, stress stability can reduce the size deviation produced in the process of vibrating, guarantees cast-in-place reverse ridge pouring quality, link beam and cross arm beam adopt upper and lower superimposed lap joint mode respectively, effectively avoid the fighting problem produced by cross intersection.

Description

Technical Field

[0001] This utility model relates to the construction field of sunken toilets and anti-sill construction, specifically to a standardized template for anti-sill construction of sunken toilets. Background Technology

[0002] In-floor drainage in bathrooms, with its rationally laid-out pipes within the same floor, avoids a series of problems and hidden dangers caused by horizontal drainage pipes encroaching on the space of the lower floor (including unclear property rights, noise interference, leakage risks, and space limitations), and is gradually being adopted. However, the presence of a drop slab and a raised curb in the bathroom, along with the secondary construction of the raised curb, increases the difficulty of construction. The multiple procedures make it difficult to control quality on-site. Since the raised curb requires a small amount of concrete, it is easy to waste materials and increase on-site waste. Moreover, bathroom waterproofing is a key point in building construction quality control; if not controlled properly, it can lead to leakage and serious safety hazards.

[0003] Patent application 201910066632.0 discloses a formwork for a settling area infill and its casting method. The structure includes a floor slab formwork base plate, a settling area infill formwork hanging form, and a shear wall formwork. It uses a back brace for positioning and fixing, with the back brace fixed above the floor slab formwork base plate by reinforcing bolts. This allows for the one-time casting of the shear wall, floor slab, and settling area infill, improving work efficiency compared to traditional methods. However, the single-point fixing method of the back brace to the base plate by reinforcing bolts results in unstable stress during concrete pouring and vibration, making it difficult to accurately control the concrete elevation and geometric dimensions of the dropped slab, especially for drainage slabs with a drop height greater than 30 mm. When the dimensional deviation is measured in cm, it can easily cause quality problems such as excessive dimensional deviation. Moreover, it is only suitable for single-sided drop slab construction. For sunken bathroom drop slab construction with an enclosed shape, it has problems such as incomplete splicing and back ribs interlocking, limiting its applicability. At the same time, it is inconvenient to remove the formwork at the inside corner of the inverted curb and shear wall, which can easily lead to chipped edges and corners, resulting in uneven inside and outside corners of the drop slab surface, affecting the appearance quality of the formed surface, requiring subsequent repairs, and increasing construction costs. Furthermore, when applying waterproof coating to the wall, the coating on the wall will fall due to gravity and accumulate at the corners. Excessive accumulation of coating will affect the drying speed of the coating and may also cause cracks, affecting the waterproof performance of the bathroom.

[0004] Patent application 202110990839.4 discloses a method for constructing a bathroom curb with the main structure using a one-time pouring method, including S1, template processing; S2, measurement and positioning; S3, template installation and fixing; S4, concrete pouring and forming; and S5, template removal. In S1, the template is a 14mm thick bamboo plywood, and the template includes a first side mold, a second side mold, and a third side mold. The height of the first side mold on the inner side of the bathroom is equal to the height of the lowered slab plus the height of the curb, and the height of the third side mold on the outer side of the bathroom is the height of the curb. This utility model uses 14mm thick bamboo plywood as the template and square timber and detachable water-stop bolts as reinforcement materials for standardized installation and reinforcement. The construction operation is simple and the construction cost is low. However, the drop slab and the curb each have a row of removable water-stop bolts. The number of water-stop bolts is large, the installation is cumbersome, and they are cut with an angle grinder after the formwork is removed, resulting in low construction efficiency and serious material waste. At the same time, bamboo plywood is used as the formwork, which is very easy to stick to the concrete during the demolding process, resulting in unevenness at the inside and outside corners of the drop slab surface, affecting the appearance quality of the formed surface. In addition, there is also the problem of high damage rate of the formwork after demolding and low reuse rate.

[0005] In conclusion, to ensure the quality of the integrated casting of the inverted sill for sunken toilets, it is necessary to optimize and improve the formwork and construction methods for the inverted sill of sunken toilets with same-floor drainage. Utility Model Content

[0006] The purpose of this utility model is to provide a standardized formwork for the inverted curb of sunken bathrooms, in order to solve the problems existing in the integrated casting construction of sunken bathroom inverted curbs, such as unstable installation of the inverted curb formwork, incomplete splicing and back rib interference in the case of sunken bathrooms with enclosed shapes, inconvenient demolding at the internal corners of the inverted curb and shear wall, unevenness at the internal and external corners, and low reuse rate of parts.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] This utility model relates to a standardized formwork for sunken bathroom curbs used in the integrated construction of cast-in-place floor slabs, cast-in-place lowered slabs, and cast-in-place curbs. It includes a bottom formwork, crossbeams, inner curb formwork, outer curb formwork, support blocks, connecting beams, and conical supports. The bottom formwork includes floor slab side bottom formwork, lowered slab side bottom formwork, and shear wall outer formwork. The upper and lower ends of the shear wall outer formwork are connected to the floor slab side bottom formwork and the lowered slab side bottom formwork, respectively. The crossbeams are located at the four corners and the middle of the four sides of the cast-in-place lowered slab. The inner curb formwork is fixed to the lower surface of the inner end of each crossbeam, and the outer curb formwork is fixed to the lower surface of the middle of each crossbeam. Support blocks are fixed to the lower surface of the outer end of each crossbeam. Conical supports are provided at the bottom of the support blocks and / or the outer curb formwork, and the bottom of the conical supports is detachably connected to the floor slab side bottom formwork. The symmetrically arranged crossbeams are connected to each other by connecting beams.

[0009] Preferably, the inner mold of the inverted sill is set on the side of the cast-in-place lowered slab of the cast-in-place inverted sill. The inner mold of the inverted sill includes an upper fixed mold and a lower arc corner mold. The fixed mold and the arc corner mold are spliced ​​together by fixing bolts to form the dimensions of the cast-in-place inverted sill. The top of the arc corner mold is a right angle and the bottom is an arc corner. The top of the fixed mold is fixed to the end of the crossbeam by fixing bolts. The top elevation of the fixed mold is the top elevation of the cast-in-place inverted sill, and the bottom elevation of the arc corner mold is the top elevation of the cast-in-place lowered slab.

[0010] Preferably, the outer formwork of the inverted curb is set on the side of the cast-in-place floor slab of the cast-in-place curb, and the top is fixed to the middle of the crossbeam by fixing bolts. The top elevation of the outer formwork of the inverted curb is the top elevation of the cast-in-place curb, and the bottom elevation is the top elevation of the cast-in-place floor slab.

[0011] Preferably, the crossbeam is an I-shaped cross-section beam, and the connecting beam includes connecting crossbeams and connecting longitudinal beams, both of which have a channel-shaped cross-section. The connecting crossbeams have bifurcated slots at the middle of both ends, which are inserted into the web of the crossbeam and fixed to the bottom of the upper flange of the crossbeam along the long side of the cast-in-place lower slab by fixing bolts. The connecting longitudinal beams are fixed to the top of the upper flange of the crossbeam along the short side of the cast-in-place lower slab by fixing bolts at both ends, thus forming a crisscrossing, staggered connecting beam.

[0012] The length of the bifurcation groove is 20-50cm, and the overlap length between the bifurcation groove of the connecting beam and the crossbeam is greater than 20cm. The cross-sectional dimensions of the connecting beam and the connecting longitudinal beam are matched with those of the crossbeam, and the two are not in contact or connected at the cross intersection.

[0013] Preferably, the height of the conical cylinder support is the same as the height of the cast-in-place floor slab. The conical cylinder support includes an outer conical cylinder and an inner threaded cylinder of the same height. The outer diameter of the outer conical cylinder is larger at the top and smaller at the bottom. The upper and lower ends of the outer conical cylinder and the inner threaded cylinder are formed by welding plates, and the large-diameter welding plate is provided with a pull-out groove. The bottom of the conical cylinder support is fixed to the bottom template of the floor slab side by a bottom plate fixing bolt, and the top is fixed to the bottom of the outer template of the countersunk wall or the support block by an aluminum formwork fixing bolt.

[0014] Preferably, the lower flanges of the crossbeams at the four corners are connected to the inner or outer molds of the inverted curb on both sides of the adjacent sides, so that the inner or outer molds of the inverted curb on adjacent right-angled sides are spliced ​​into a whole.

[0015] Preferably, the bottom surfaces of the support block and the outer formwork of the inverted curb are both at the top surface elevation of the cast-in-place floor slab.

[0016] The advantages of the technical solution involved in this utility model compared with traditional technology are as follows:

[0017] 1. The standardized template for the sunken toilet curb of this utility model connects the symmetrically arranged crossbeams to each other through connecting beams, forming a portal frame fixing structure. This structure is reliable, stable, and can effectively resist the forces generated during concrete pouring, reduce dimensional deviations during vibration, and ensure the quality of the cast-in-place curb.

[0018] 2. The connecting beams of the standardized template for the sunken bathroom curb of this utility model include connecting crossbeams and connecting longitudinal beams. The connecting crossbeams have bifurcated grooves at the middle of both ends, which are inserted into the web of the crossbeam and fixed to the bottom of the upper flange of the crossbeam along the long side of the cast-in-place lower slab by fixing bolts. The connecting longitudinal beams are fixed to the top of the upper flange of the crossbeam along the short side of the cast-in-place lower slab by fixing bolts at both ends, thus forming a crisscrossing and staggered connecting beam, effectively avoiding the problem of cross-shaped interference and improving the installation efficiency of the connecting beams. At the same time, the connecting crossbeams can adjust the overlap length with the crossbeams through the bifurcated grooves, and the connecting longitudinal beams can adjust the overlap length with the crossbeams to adapt to cast-in-place lower slabs of different sizes, thus improving the applicability of the standardized template for the sunken bathroom curb.

[0019] 3. The recessed bathroom curb molding template of this utility model includes an upper molding mold and a lower arc corner mold. The molding mold and the arc corner mold are spliced ​​together by fixing bolts to form the dimensions of the cast-in-place curb. The top of the arc corner mold is a right angle and the bottom is an arc corner. The design of molding mold + arc corner mold results in an arc shape after the curb and the inside corner of the lower plate are cast. The demolding is simple, which can completely solve the problem of missing edges and corners, effectively improve the appearance quality of the formed surface, reduce the accumulation of paint in the inside corner, and reduce the risk of leakage.

[0020] 4. The sunken bathroom sill formwork of this utility model uses conical cylinder supports for fixing the sill formwork. This not only effectively fixes the crossbeams and ensures the quality of the formwork support, but also acts as a thickness controller for the floor slab pouring. At the same time, it can be dismantled and recycled after the floor slab reaches its strength, effectively reducing material waste and being environmentally friendly. The conical cylinder supports are fixed to the bottom formwork by bottom plate fixing bolts, which can effectively fix it and reduce displacement during the pouring and vibration process. The conical design makes it easy to dismantle after the strength is reached, improving dismantling efficiency. Attached Figure Description

[0021] Figure 1 This is a top view of a standardized template for a sunken bathroom with a reverse sill.

[0022] Figure 2 This is a cross-sectional view of the standardized formwork connecting beam for a sunken bathroom. Figure 1 (Cross-section diagram of AA)

[0023] Figure 3This is a cross-sectional view of the longitudinal beam connecting the standardized formwork of the sunken bathroom's inverted sill. Figure 1 (British section diagram)

[0024] Figure 4 This is a detailed drawing of the conical cylinder support node. Figure 2 (Detailed diagram of node A in the middle)

[0025] Figure 5 This is a cross-sectional view of the sunken bathroom after the integrated casting of the inverted sill.

[0026] Figure 6 This is an exploded view of the components supporting the conical cylinder;

[0027] Figure 7 This is a three-dimensional schematic diagram of a conical cylinder support;

[0028] Figure 8 This is a schematic diagram of the cross-sectional connection of the standardized template connecting beams for a sunken bathroom's inverted sill.

[0029] Figure 9 This is an exploded view of the cross-section of each component of the standardized template connecting beam for a sunken bathroom.

[0030] Figure 10 This is a schematic diagram of the longitudinal beam section connection of the standardized template for the inverted sill of a sunken bathroom.

[0031] Figure 11 This is an exploded view of the components of the longitudinal beam section of the standardized template connecting the inverted sill of a sunken bathroom.

[0032] Figure 12 This is a schematic diagram of the outer mold structure of the standard type of anti-reverse retaining wall;

[0033] Figure 13 These are schematic diagrams of standard-type anti-reverse retaining mold structures at different angles;

[0034] Figure 14 These are schematic diagrams of inverted retaining wall molding structures spliced ​​at different angles;

[0035] Figure 15 This is a schematic diagram of the splicing of adjacent side moldings;

[0036] Figure 16 This is a schematic diagram of the arc-angle mold structure;

[0037] Figure 17 This is a schematic diagram showing the connection between the shaping mold and the arc corner mold;

[0038] Figure 18 This is a schematic diagram of the crossbeam structure;

[0039] Figure 19 This is a schematic diagram of the connecting beam structure;

[0040] Figure 20This is a schematic diagram of the connecting longitudinal beam structure;

[0041] Figure 21 This is a schematic diagram of the overlapping section of the connecting beam and the crossbeam;

[0042] Figure 22 This is a three-dimensional schematic diagram of the overlapping connection between the connecting beam and the crossbeam;

[0043] Figure 23 This is a schematic diagram of the overlapping section of the connecting longitudinal beam and the crossbeam;

[0044] Figure 24 It is a three-dimensional schematic diagram of the overlapping joint of the longitudinal beam and the transverse beam;

[0045] Figure 25 This is a top view after construction in step S4 of Example 1;

[0046] Figure 26 This is a top view after the construction of the connecting beam in step S5 of Example 1;

[0047] Figure 27 This is a cross-sectional view of the cast-in-place inverted curb after construction in step S6 of Example 1;

[0048] Figure 28 This is a cross-sectional view of the cast-in-place inverted curb after construction in step S7 of Example 1;

[0049] Figure 29 This is a cross-sectional view of the cast-in-place inverted curb after construction in step S8 of Example 1;

[0050] Figure 30 This is a top view of the standardized template for the sunken toilet's inverted sill in Example 2;

[0051] Figure 31 This is a cross-sectional view of the standardized template connecting beam for the sunken bathroom in Example 2;

[0052] Figure 32 This is a cross-sectional view of the sunken toilet's integrated inverted sill after construction in step S9 of Example 2;

[0053] Figure 33 This is a cross-sectional view of the standardized template connecting beam for the sunken bathroom in Example 3;

[0054] Figure 34 This is a cross-sectional view of the sunken toilet's integrated inverted sill after construction in step S9 of Example 3;

[0055] Figure 35 This is a flowchart of the construction method for the integrated pouring of the inverted curb in a sunken bathroom.

[0056] The diagram is labeled as follows: 1-Cast-in-place floor slab, 2-Cast-in-place lowered slab, 3-Cast-in-place upstand, 4-Bottom formwork, 401-Installation hole, 5-Expanding mortar, 6-Outer formwork of upstand, 7-Inner formwork of upstand, 701-Shaped formwork, 702-Arched corner formwork, 8-Support block, 9-Crossbeam, 10-Connecting crossbeam, 1001-Bifurcation groove, 11-Connecting longitudinal beam, 12-Conical cylinder support, 1201-Threaded cylinder, 1202-Aluminum formwork fixing bolt, 1203-Bottom plate fixing bolt, 1204-Welded plate, 1205-Pulling groove, 1206-Conical outer cylinder, 13-Fixing bolt, 14-Conical groove, 15-Connecting hole, 16-Formwork stiffening rib, 17-Floor slab reinforcement, 18-End plate, 1801-Vertical end plate, 1802-Inclined end plate. Detailed Implementation

[0057] To deepen the understanding of this utility model, the following will refer to... Figures 1 to 35 The embodiments of this utility model will be described in detail below. The following embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods. However, the protection scope of this utility model is not limited to the following embodiments.

[0058] Example 1

[0059] In this embodiment, the thickness of the cast-in-place floor slab 1, the thickness of the cast-in-place lower slab 2, the height of the cast-in-place curb 3 is 200mm, the plane dimensions of the cast-in-place lower slab 2 are 2850mm×1480mm, and the depth of the cast-in-place lower slab 2 is 300cm.

[0060] Combined with appendix Figure 1 ~Appendix Figure 3As shown, the standardized formwork for the sunken bathroom curb includes a bottom formwork 4, crossbeams 9, inner curb formwork 7, outer curb formwork 6, support blocks 8, connecting beams, and conical supports 12. The bottom formwork 4 includes floor slab side bottom formwork, drop slab side bottom formwork, and shear wall outer formwork. The upper and lower ends of the shear wall outer formwork are connected to the floor slab side bottom formwork and drop slab side bottom formwork, respectively. The crossbeams 9 are located at the four corners and the middle of the four sides of the cast-in-place drop slab 2. The inner curb formwork 7 is fixed to the lower surface of the inner end of each crossbeam 9, and the outer curb formwork 6 is fixed to the lower surface of the middle of each crossbeam 9. Support blocks 8 are fixed to the lower surface of the outer end of each crossbeam 9. The length of each support block 8 is 10-20cm, and there is no connection between the support blocks 8. The bottom of the support blocks 8 and the outer curb formwork 6 are provided with conical supports 12, and the bottom of the conical supports 12 is detachably connected to the floor slab side bottom formwork. The symmetrically arranged crossbeams 9 are connected by... The connecting beams are interconnected. In this embodiment, four diagonal crossbeams 9 are set at the four corners of the reverse sill 3. Two sets of four crossbeams 9 are set on the long side of the reverse sill 3 and are connected into a whole by connecting crossbeams 10. A set of two crossbeams 9 is set on the short side of the reverse sill 3 and are connected into a whole by connecting longitudinal beams 11. The height of the conical support 12 is 120mm. The height of the outer mold 6 of the reverse sill is 200mm. The total height of the inner mold 7 of the reverse sill is 500mm. Conical supports 12 are set at the bottom of the crossbeams 9 on the support block 8 and the bottom of the outer mold 6 of the reverse sill.

[0061] Combined with appendix Figure 1 As shown, the inner mold 7 of the inverted curb is set on the side of the cast-in-place lowered slab 2 of the cast-in-place curb 3, and the four sides form the shape of the cast-in-place lowered slab 2; combined with the attached Figure 2 Appendix Figure 3 As shown, the inner mold 7 of the anti-sill includes an upper shaping mold 701 and a lower arc-angle mold 702, wherein the shaping mold 701 has a height of 400mm and the arc-angle mold 702 has a height of 100mm; combined with the attached... Figure 17 As shown, the top of the mold 701 is fixed to the end of the crossbeam 9 by fixing bolts 13, and the bottom of the mold 701 is fixed with the arc-shaped mold 702. The top elevation of the mold 701 is the top elevation of the cast-in-place uplift 3, and the bottom elevation of the arc-shaped mold 702 is the top elevation of the cast-in-place drop slab 2. The mold 701 and the arc-shaped mold 702 are assembled from lightweight aluminum formwork by fixing bolts 13 to form the dimensions of the cast-in-place uplift 3, and then combined with the attached... Figure 16 As shown, the top of the arc-corner mold 702 is a right angle, and the bottom is an arc-shaped corner, which protects the molding quality of the inside corner and facilitates demolding.

[0062] Combined with appendix Figure 1 As shown, the outer mold 6 of the inverted curb is set on the side of the cast-in-place floor slab 1 of the cast-in-place curb 3, and the four sides form the shape of the cast-in-place curb 3, combined with the attached... Figure 2 Appendix Figure 3As shown, the top of the outer formwork 6 of the inverted curb is fixed to the middle of the crossbeam 9 by fixing bolts 13. The top elevation of the outer formwork 6 of the inverted curb is the top elevation of the cast-in-place inverted curb 3, and the bottom elevation is the top elevation of the cast-in-place floor slab 1.

[0063] Combined with appendix Figure 18 As shown, the crossbeam 9 is an I-shaped crossbeam, which is located at the four corners and the middle of the four sides of the cast-in-place lower slab 2. The crossbeams 9 on the middle of the four sides are symmetrically connected to form a whole by connecting beams. The crossbeam 9 has an inner mold 7 of the inverted curb fixed at the bottom end of the cast-in-place lower slab 2, a support block 8 fixed at the bottom end of the cast-in-place floor slab 1, and an outer mold 6 of the inverted curb fixed in the middle. The support block 8 is located at the end of the crossbeam 9 on the side of the cast-in-place floor slab 1. The support block 8 and the outer mold 6 of the inverted curb are at the same height and fixed at the same elevation of the crossbeam 9, and the bottom surface of both is at the top surface elevation of the cast-in-place floor slab 1.

[0064] Combined with appendix Figure 13 ~Appendix Figure 15 As shown, the inner mold 7 and outer mold 6 of the inverted curb include standard and spliced ​​types. The standard type inner mold 7 and outer mold 6 have vertical end plates 1801 at both ends. The spliced ​​type inner mold 7 and outer mold 6 have 45° inclined end plates 1802 at the corner splicing point of the cast-in-place inverted curb 3. Connecting holes 15 are provided on the vertical end plates 1801 and inclined end plates 1802. Combined with the attached... Figure 1 As shown, the lower flanges of the crossbeams 9 at the four corners are connected to the inner mold 7 or outer mold 6 of the adjacent right-angled side reverse sills, which facilitates the splicing of the inner mold 7 or outer mold 6 of the adjacent right-angled side reverse sills into a whole.

[0065] Combined with appendix Figure 19 Appendix Figure 20 As shown, the connecting beam includes a connecting crossbeam 10 and a connecting longitudinal beam 11, both of which have a channel-shaped cross section; the connecting crossbeam 10 has a bifurcated slot 1001 at the middle of both ends, which inserts into the web of the crossbeam 9; combined with the attached... Figure 1 ~Appendix Figure 3 As shown, the connecting beam 10 is fixed to the bottom of the upper flange of the crossbeam 9 located on the long side of the cast-in-place lowered slab 2 by fixing bolts 13, and then combined with the attached... Figure 23 Appendix Figure 24 As shown, the two ends of the connecting longitudinal beam 11 are fixed to the top of the upper flange of the crossbeam 9 set on the short side of the cast-in-place lowered slab 2 by fixing bolts 13; and then combined with the attached Figure 8 Appendix Figure 9 Appendix Figure 21 Appendix Figure 22 As shown, the bifurcation groove 1001 is located at the middle of both ends of the connecting beam 10, corresponding to the position of the web of the crossbeam 9. The length of the bifurcation groove 1001 is 20~50cm, and the overlap length between the bifurcation groove 1001 of the connecting beam 10 and the crossbeam 9 is greater than 20cm, ensuring the integrity of the connection and providing a certain adjustment space to adapt to cast-in-place lowered slabs 2 of different sizes. (See attached diagram.) Figure 1 ~Appendix Figure 3 Appendix Figure 8 ~Appendix Figure 11 As shown, the channel cross-section dimensions of the connecting beam 10 and the connecting longitudinal beam 11 match those of the crossbeam 9, and the two are not in contact or connected at the cross intersection.

[0066] Combined with appendix Figure 2 Appendix Figure 3 As shown, the conical cylinder support 12 is located at the bottom of the outer mold 6 and support block 8 of the inverted curb, and is further combined with the attached... Figure 4 Appendix Figure 6 Appendix Figure 7 As shown, the conical cylinder support 12 comprises two parts: an outer conical outer cylinder 1206 and an inner threaded cylinder 1201 of equal height. These two parts are integrally formed at their upper and lower ends by welded plates 1204. The large-diameter welded plate 1204 has a pull-out groove 1205. The bottom of the conical cylinder support 12 is fixed to the bottom formwork 4 of the cast-in-place floor slab 1 via bottom plate fixing bolts 1203, and the top is fixed to the connecting holes 15 at the bottom of the outer formwork 6 of the countersunk wall and the support block 8 via aluminum formwork fixing bolts 1202. (See attached diagram.) Figure 2 Appendix Figure 3 Appendix Figure 5 As shown, the height of the conical support 12 is the same as the height of the cast-in-place floor slab 1. It acts as a floor slab thickness controller during the concrete pouring process and can be removed after the floor slab reaches its strength. After removal, a conical groove 14 is formed in the cast-in-place floor slab.

[0067] Combined with appendix Figure 35 As shown, the construction method for the integrated casting of the inverted curb of a sunken bathroom includes the following steps:

[0068] S1, Bottom formwork 4-way support: combined with attached... Figure 1 ~Appendix Figure 3 As shown, in accordance with the construction requirements, the bottom formwork 4 of the cast-in-place floor slab 1 and the cast-in-place drop slab 2 are erected and tied with the floor slab reinforcement 17, and installation holes are drilled at the designated positions of the bottom support block 8 of the crossbeam 9 and the outer formwork 6 of the inverted sill.

[0069] S2, Conical cylinder support 12 fabrication and positioning installation, combined with attached Figure 6 Appendix Figure 7 As shown, it specifically includes the following steps:

[0070] S2.1. Fabricate a welding plate 1204 with the same upper and lower inner diameters as the conical outer cylinder 1206, and set an indented pull-out groove 1205 on the large-diameter welding plate 1204;

[0071] S2.2. Large and small diameter welding plates 1204 are welded to the upper and lower ends of the threaded cylinder 1201. The threaded cylinder 1201 is placed inside the conical outer cylinder 1206. The large and small diameter welding plates 1204 are welded to the upper and lower ends of the threaded cylinder 1201 respectively to form the conical cylinder support 12.

[0072] S2.3, combined with appendix Figure 2 Appendix Figure 3 As shown, the conical support 12 is placed upside down at the mounting hole 401 of the bottom template 4, and the bottom plate fixing bolt 1203 is used to tighten and fix it at the bottom of the mounting hole 401 of the bottom template 4, thus completing the installation of all conical supports 12.

[0073] S3. Install the outer formwork 6 and support block 8 of the reverse sill. Overlap the middle part of the crossbeam 9 onto the outer formwork 6 of the reverse sill, overlap the outer end of the crossbeam 9 onto the support block 8, and install the inner formwork 7 of the reverse sill on the lower surface of the inner end of the crossbeam 9. The specific steps are as follows:

[0074] S3.1, combined with appendix Figure 1 ~Appendix Figure 3 As shown, the support block 8 is installed on the top of the conical cylinder support 12 above the mounting hole 401 of the support block 8, and is fixed with aluminum mold fixing bolts 1202;

[0075] S3.2. Four outer molds 6 of the in-situ inverted wall 3 are spliced ​​together using aluminum templates. The four outer molds 6 of the inverted wall are provided with 45° inclined end plates 1802 at both ends. The four outer molds 6 of the inverted wall are fixed to the top of the corresponding conical support 12 and fixed with aluminum mold fixing bolts 1202.

[0076] S3.3 The inclined end plates 1802 of the outer molds 6 of the adjacent side countersunks are connected by fixing bolts 13, so that the four outer molds 6 of the countersunks form a whole.

[0077] S4. Installation of the crossbeam 9 and the inner mold 7 of the inverted sill: The middle part of the crossbeam 9 is overlapped on the outer mold 6 of the inverted sill, the outer end of the crossbeam 9 is overlapped on the support block 8, and the inner mold 7 of the inverted sill is installed on the lower surface of the inner end of the crossbeam 9. The specific steps include:

[0078] S4.1, as attached Figure 1 ~Appendix Figure 3 As shown, a crossbeam 9 is installed on the top of the support block 8 and fixed with fixing bolts 13. The crossbeam 9 is also fixed with fixing bolts 13 at the junction with the outer mold 6 of the countersunk wall.

[0079] S4.2, combined with appendix Figure 13 Appendix Figure 14 Appendix Figure 17 As shown, four fixed molds 701 and arc corner molds 702 that meet the dimensions of the cast-in-place inverted curb 3 are spliced ​​together using aluminum templates. The four fixed molds 701 and arc corner molds 702 are provided with 45° inclined end plates 1802 at both ends. The arc corner molds 702 are fixed at the bottom of the fixed molds 701 using fixing bolts 13.

[0080] S4.3 Fix the four shaping molds 701 to the bottom of the crossbeam 9 respectively. Fix the shaping molds 701 and the crossbeam 9 with fixing bolts 13 so that the shaping molds 701 and the arc-angle molds 702 are suspended at the bottom of the crossbeam 9.

[0081] S4.4, combined with appendix Figure 25 As shown, the inclined end plates 1802 of adjacent side shaping molds 701 and arc corner molds 702 are connected by fixing bolts 13, so that the four shaping molds 701 and arc corner molds 702 form a whole.

[0082] S5. Installation of connecting beams: Connecting beams are installed between the symmetrically arranged crossbeams 9. The specific steps are as follows:

[0083] S5.1, combined with appendix Figure 2 Appendix Figure 26 As shown, a connecting beam 10 is installed on the crossbeam 9 symmetrically arranged along the long side of the cast-in-place lowered slab 2. The bifurcation groove 1001 of the connecting beam 10 is inserted into the web of the crossbeam 9. After adjusting the overlap length with the crossbeam 9, it is fixed to the bottom of the upper flange of the crossbeam 9 by fixing bolts 13.

[0084] S5.2, combined with appendix Figure 1 Appendix Figure 3 As shown, a connecting longitudinal beam 11 is installed on the crossbeam 9 symmetrically arranged on the short side of the cast-in-place drop slab 2. After adjusting the overlap length with the crossbeam 9, the two ends of the connecting longitudinal beam 11 are fixed to the top of the upper flange of the crossbeam 9 by fixing bolts 13.

[0085] S6, Integral Cast Concrete: Combined with attached... Figure 27 As shown, cast-in-place floor slab 1, cast-in-place drop slab 2, and cast-in-place upstand 3 are poured together and then cured.

[0086] S7. Standardized formwork removal: (in conjunction with attached...) Figure 28 As shown, after the cast-in-place floor slab 1, cast-in-place drop slab 2, and cast-in-place curb 3 reach their strength, the components of the standardized formwork are removed in sequence. The removal order is as follows: connecting longitudinal beam 11, connecting transverse beam 10, transverse beam 9, inner formwork of curb 7, outer formwork of curb 6, and support block 8.

[0087] S8, Conical Cylinder Support 12 Removal: (See attached document) Figure 29 As shown, remove the bottom plate fixing bolt 1203 of the conical cylinder support 12, insert the removal tool into the top groove 1205 of the conical cylinder support 12, and rotate the conical cylinder support 12 in both forward and reverse cycles to separate it from the cast-in-place floor slab 1. Then remove the conical cylinder support 12 to form a conical groove 14 at the corresponding position of the cast-in-place floor slab 1.

[0088] S9, Expansive mortar filling: combined with attached... Figure 5As shown, expandable mortar is prepared by injecting expandable mortar into the conical groove 14 to form a conical expandable mortar body 5.

[0089] Example 2

[0090] Combined with appendix Figure 30 Appendix Figure 31 Appendix Figure 32 As shown, in this embodiment, the thickness of the cast-in-place floor slab 1, the thickness of the cast-in-place lowered slab 2, and the height of the conical support 12 are all 120mm. The height of the cast-in-place curb 3 is 200mm. The planar dimensions of the cast-in-place lowered slab 2 are 2850mm × 1480mm. The depth of the cast-in-place lowered slab 2 is 300cm. The height of the outer mold 6 of the curb is 200mm. The total height of the inner mold 7 of the curb is 500mm, of which the height of the fixed mold 701 is 400mm and the height of the arc corner mold 702 is 100mm. Four diagonal crossbeams 9 are set at the four corners of the cast-in-place curb 3. Two sets of four crossbeams 9 are set on the long side and connected into a whole by connecting crossbeams 10. One set of two crossbeams 9 is set on the short side and connected into a whole by connecting longitudinal beams 11. The bottom of the crossbeams 9 is only provided with conical support 12 at the bottom of the outer mold 6 of the curb, and the support block 8 is removed.

[0091] Example 3

[0092] Combined with appendix Figure 33 Appendix Figure 34 As shown, in this embodiment, the thickness of the cast-in-place floor slab 1, the thickness of the cast-in-place lowered slab 2, and the height of the conical support 12 are all 120mm. The height of the cast-in-place curb 3 is 200mm. The planar dimensions of the cast-in-place lowered slab 2 are 2850mm × 1480mm. The depth of the cast-in-place lowered slab 2 is 300cm. The height of the outer mold 6 of the curb is 200mm. The total height of the inner mold 7 of the curb is 500mm, of which the height of the shaping mold 701 is 400mm and the height of the arc corner mold 702 is 100mm. Four diagonal crossbeams 9 are set at the four corners of the cast-in-place curb 3. Two sets of four crossbeams 9 are set on the long side and connected into a whole by connecting crossbeams 10. One set of two crossbeams 9 is set on the short side and connected into a whole by connecting longitudinal beams 11. The bottom of the crossbeams 9 is only provided with a conical support 12 at the bottom of the support block 8. There is no support at the bottom of the outer mold 6 of the curb.

[0093] The above embodiments are only used to explain the technical concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A standardized formwork for a sunken toilet curb, used for the integrated construction of cast-in-place floor slabs (1), cast-in-place lowered slabs (2), and cast-in-place curbs (3), characterized in that: It includes a bottom formwork (4), a crossbeam (9), an inner formwork of the sill (7), an outer formwork of the sill (6), a support block (8), a connecting beam, and a conical support (12); the bottom formwork (4) includes a floor slab side bottom formwork, a drop slab side bottom formwork, and a shear wall outer formwork, with the upper and lower ends of the shear wall outer formwork connected to the floor slab side bottom formwork and the drop slab side bottom formwork, respectively; the crossbeam (9) is located at the four corners and the middle of the four sides of the cast-in-place drop slab (2), the inner formwork of the sill (7) is fixed to the lower surface of the inner end of each crossbeam (9), the outer formwork of the sill (6) is fixed to the lower surface of the middle of each crossbeam (9), and a support block (8) is fixed to the lower surface of the outer end of each crossbeam (9). A conical support (12) is provided at the bottom of the support block (8) or / and the outer formwork of the sill (6), and the bottom of the conical support (12) is detachably connected to the floor slab side bottom formwork; the symmetrically arranged crossbeams (9) are connected to each other by connecting beams.

2. The standardized template for a sunken bathroom curb as described in claim 1, characterized in that: The inner mold (7) of the inverted sill is set on the side of the cast-in-place lower plate (2) of the cast-in-place inverted sill (3). The inner mold (7) of the inverted sill includes an upper shaped mold (701) and a lower arc corner mold (702). The shaped mold (701) and the arc corner mold (702) are spliced ​​together by fixing bolts (13) to form the dimensions of the cast-in-place inverted sill (3). The top of the arc corner mold (702) is a right angle and the bottom is an arc corner. The top of the shaped mold (701) is fixed to the end of the crossbeam (9) by fixing bolts (13). The top elevation of the shaped mold (701) is the top elevation of the cast-in-place inverted sill (3), and the bottom elevation of the arc corner mold (702) is the top elevation of the cast-in-place lower plate (2).

3. The standardized template for a sunken bathroom curb as described in claim 1, characterized in that: The outer formwork (6) of the inverted sill is set on the side of the cast-in-place floor slab (1) of the cast-in-place inverted sill (3). The top is fixed to the middle of the crossbeam (9) by fixing bolts (13). The top elevation of the outer formwork (6) of the inverted sill is the top elevation of the cast-in-place inverted sill (3), and the bottom elevation is the top elevation of the cast-in-place floor slab (1).

4. The standardized template for a sunken bathroom curb as described in claim 1, characterized in that: The crossbeam (9) is an I-shaped crossbeam. The connecting beams include connecting crossbeams (10) and connecting longitudinal beams (11). Both connecting crossbeams (10) and connecting longitudinal beams (11) have a channel-shaped crossbeam. The connecting crossbeams (10) have bifurcated slots (1001) at the middle of both ends. The bifurcated slots (1001) are inserted into the web of the crossbeam (9) and fixed to the bottom of the upper flange of the crossbeam (9) along the long side of the cast-in-place lower plate (2) by fixing bolts (13). The connecting longitudinal beams (11) are fixed to the top of the upper flange of the crossbeam (9) along the short side of the cast-in-place lower plate (2) by fixing bolts (13), thus forming a crisscrossing and staggered connecting beam.

5. The standardized template for a sunken bathroom curb as described in claim 1, characterized in that: The height of the conical cylinder support (12) is the same as the height of the cast-in-place floor slab (1). The conical cylinder support (12) includes an outer conical outer cylinder (1206) and an inner threaded cylinder (1201) of the same height. The outer diameter of the outer conical outer cylinder is larger at the top and smaller at the bottom. The upper and lower ends of the outer conical outer cylinder (1206) and the inner threaded cylinder (1201) are formed by welding plates (1204) and the large-diameter welding plate (1204) is provided with a pull-out groove (1205). The bottom of the conical cylinder support (12) is fixed to the bottom template of the floor slab side by a bottom plate fixing bolt (1203), and the top is fixed to the bottom of the outer mold (6) of the countersunk wall or the support block (8) by an aluminum mold fixing bolt (1202).

6. The standardized template for a sunken bathroom curb as described in claim 1, characterized in that: The crossbeams (9) at the four corners are connected to the inner mold (7) or outer mold (6) of the adjacent right-angled side of the crossbeams (9), so that the inner mold (7) or outer mold (6) of the crossbeams on the adjacent right-angled side are spliced ​​into a whole.

7. The standardized template for a sunken bathroom curb as described in claim 1, characterized in that: The bottom surfaces of the support block (8) and the outer formwork (6) of the countersunk wall are both at the top surface elevation of the cast-in-place floor slab (1).

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