Anti-floating hollow prestressed floor filling device

Abstract

The utility model relates to the technical field of building construction, and particularly provides an anti-floating type hollow prestressed floor filling device which comprises a filling box body used for filling a hollow prestressed floor; the filling box body is provided with an upper connecting end and a lower connecting end which are oppositely arranged; the anti-floating assembly is connected with the filling box body, and the anti-floating assembly is used for limiting upward floating of the filling box body; the template is arranged below the filling box body, and the template is fixed in the hollow prestressed floor system; wherein one end of the anti-floating assembly is inserted from the upper connecting end, extends out of the lower connecting end and is fixed in the template; and the other end of the anti-floating assembly is clamped in the upper connecting end, so that the problem of displacement of an existing hollow prestressed floor filling device due to the buoyancy effect is solved, the situation that a ribbed beam protection layer is extruded due to displacement of the filling box body is avoided, and it is ensured that the thickness of the ribbed beam protection layer is uniform.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to an anti-buoyancy hollow prestressed floor slab filling device. Background Technology

[0002] Hollow prestressed floor slab filling devices are commonly used in cast-in-place hollow floor slabs. In the construction of floor slabs or bridge concrete, prefabricated hollow prestressed floor slab filling devices are embedded in the concrete floor slab in advance to serve as inner molds. The hollow prestressed floor slab filling devices, together with frame beams, hidden beams, and prestressing, form a composite prestressed hollow floor slab.

[0003] During the cast-in-place process, the hollow prestressed floor slab filling device located in the middle, due to its light weight, will be subject to the upward buoyancy of the concrete, which will push the hollow prestressed floor slab filling device to move. This can easily cause the filling box to shift, squeezing the rib beam protective layer. As a result, after the poured concrete has solidified, the rib beam protective layer will have uneven thickness at the top and bottom, which will greatly affect the quality of the hollow floor slab.

[0004] Therefore, existing technologies have defects and shortcomings, and need further improvement and development. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide an anti-buoyancy hollow prestressed floor slab filling device, which aims to solve the problem that the hollow prestressed floor slab filling device in the prior art is prone to cause uneven thickness of the rib beam protective layer.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: an anti-buoyancy hollow prestressed floor slab filling device, the anti-buoyancy hollow prestressed floor slab filling device comprising:

[0007] A filling box for filling hollow prestressed floor slabs; the filling box has an upper connecting end and a lower connecting end that are arranged opposite to each other;

[0008] An anti-buoyancy component is connected to the filling box and is used to limit the upward floating of the filling box;

[0009] A template is provided below the infill box and is fixed in the hollow prestressed floor slab.

[0010] One end of the anti-buoyancy component is inserted from the upper connecting end and extends from the lower connecting end, and is fixed in the template; the other end of the anti-buoyancy component is snapped into the upper connecting end.

[0011] Optionally, the upper connecting end is provided with a concave area, a platform area, and a slope area. The concave area is provided with a clearance groove, which is used to connect the upper connecting end and the lower connecting end. The angle between the outer extension lines of the concave area and the platform area is set to an obtuse angle. The angle between the outer extension lines of the platform area and the slope area is set to an obtuse angle.

[0012] Optionally, the platform area is provided with a plurality of anti-buoyancy holes, all of which penetrate the filling box; and anti-buoyancy pull tabs are provided on the outer periphery of the plurality of anti-buoyancy holes.

[0013] Optionally, the diameter of the anti-buoyancy plate is 4 to 5 times the diameter of the anti-buoyancy hole, and the anti-buoyancy plate and the anti-buoyancy hole are detachably connected.

[0014] Optionally, the lower connecting end is provided with a contact protrusion, the transverse cross section of the contact protrusion is set as an isosceles trapezoid, and the contact protrusion is also provided with a plurality of steel bar grooves, the plurality of steel bar grooves being adapted to the bottom plate steel bars.

[0015] Optionally, the template is provided with a plurality of template holes corresponding one-to-one with the plurality of anti-buoyancy holes, and the plurality of template holes are all used for the anti-buoyancy component to pass through.

[0016] Optionally, the outer surface of the filling box is provided with a plurality of anti-slip protrusions, which are distributed along the circumference of the filling box.

[0017] Optionally, the spacing of the anti-slip protrusions is adapted to the spacing of the steel mesh of the hollow prestressed floor slab, and several of the anti-slip protrusions are used to limit the horizontal displacement of the filling box during concrete pouring.

[0018] Optionally, the anti-buoyancy component includes:

[0019] An anti-buoyancy tie rod, wherein one end of the anti-buoyancy tie rod is provided with an anti-buoyancy rod cap, and the other end of the anti-buoyancy tie rod is provided with an external thread section;

[0020] A tie rod nut, which is used to engage with the external threaded section.

[0021] Optionally, the external thread section is provided with a threaded area and a smooth area, and the threaded area and the smooth area are alternately arranged.

[0022] Compared with existing technologies, this application provides an anti-buoyancy hollow prestressed floor slab filling device. This device, through the coordinated operation of the filling box, anti-buoyancy components, and template, solves the displacement problem caused by buoyancy in existing hollow prestressed floor slab filling devices, preventing displacement of the filling box, compressing the rib beam protective layer, and ensuring uniform thickness of the rib beam protective layer. The fixed template further improves the stability of the filling device, preventing floating and thus improving the construction quality and structural safety of the hollow floor slab. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the anti-buoyancy hollow prestressed floor slab filling device provided in this application;

[0024] Figure 2 This is a top view of the anti-buoyancy hollow prestressed floor slab filling device provided in this application;

[0025] Figure 3 It is provided in this application Figure 2 Sectional view at point I-I;

[0026] Figure 4 This is a front view of an anti-buoyancy hollow prestressed floor slab filling device provided in this application;

[0027] Figure 5 It is provided in this application Figure 4 A magnified structural diagram of point A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Anti-buoyancy hollow prestressed floor slab filling device; 11. Filling box; 111. Upper connecting end; 1111. Concave area; 1112. Platform area; 1113. Sloping area; 1114. Voiding groove; 1115. Anti-buoyancy hole; 1116. Anti-buoyancy tie plate; 112. Lower connecting end; 1121. Contact protrusion; 12. Anti-buoyancy component; 121. Anti-buoyancy tie rod; 1211. Anti-buoyancy rod cap; 1212. External thread section; 1213. Threaded area; 1214. Smooth area; 122. Tie rod nut; 13. Template; 113. Anti-slip protrusion. Detailed Implementation

[0030] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0031] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Please refer to the following: Figures 1 to 5The first embodiment of this application provides an anti-buoyancy hollow prestressed floor slab filling device 10. This device is used in the construction of cast-in-place hollow floor slabs, forming a stable hollow structure during concrete pouring, reducing the floor slab's self-weight, and improving its load-bearing capacity. The device mainly consists of a filling box 11, an anti-buoyancy component 12, and a template 13. These components work together to ensure that the filling box 11 does not shift or float during pouring, thus guaranteeing the overall quality of the floor slab. Before concrete pouring, construction personnel arrange the filling box 11 at predetermined positions according to the design drawings and fix it to the template 13 using the anti-buoyancy component 12 to maintain stability during construction. The filling box 11 is connected to the anti-buoyancy component 12, with one end of the anti-buoyancy component 12 inserted from the upper connecting end 111 and extending from the lower connecting end 112, fixed in the template 13; the other end of the anti-buoyancy component 12 is engaged in the upper connecting end 111, thus forming a stable support structure. When concrete begins to be poured, the liquid concrete flows around the filling box 11 and gradually fills the gaps. Because the filling box 11 is relatively light, the buoyancy of the concrete during pouring exerts an upward thrust on it. To prevent the filling box 11 from floating or shifting, the anti-buoyancy component 12 provides restraint, firmly fixing it in the predetermined position. Furthermore, the anti-slip protrusions 113 on the surface of the filling box 11 cooperate with the surrounding steel mesh to further limit the horizontal displacement of the filling box 11, ensuring that it does not tilt or shift during the entire construction process. The anti-buoyancy component 12 consists of an anti-buoyancy tie rod 121, an anti-buoyancy pull plate 1116, and a tie rod nut 122. One end of the anti-buoyancy tie rod 121 is engaged with the filling box 11 via an anti-buoyancy rod cap 1211, and the other end, with its external threaded section 1212, passes through the template 13 and is tightened by the tie rod nut 122, thereby creating a downward pulling force on the filling box 11, counteracting the upward pushing effect of the concrete buoyancy on the filling box 11. The anti-buoyancy tension plate 1116 enhances the fixing effect, making the filling box 11 firmly fixed in the floor slab structure. This effectively avoids the problem of uneven thickness of the protective layer of the floor slab rib beam after pouring due to uneven stress, improves the stability and construction quality of the floor slab, and enables the prestressed hollow floor slab to maintain good load-bearing capacity with low self-weight.

[0034] Please refer to the following: Figures 1 to 3In some embodiments, the anti-buoyancy hollow prestressed floor slab filling device 10 includes a filling box 11, an anti-buoyancy component 12, and a template 13. The filling box 11 is used to fill the hollow prestressed floor slab. The filling box 11 has an upper connecting end 111 and a lower connecting end 112 arranged opposite to each other. The anti-buoyancy component 12 is connected to the filling box 11 and is used to restrict the filling box 11 from floating upward. The template 13 is disposed below the filling box 11 and is fixed in the hollow prestressed floor slab. One end of the anti-buoyancy component 12 is inserted from the upper connecting end 111 and extends from the lower connecting end 112, and is fixed in the template 13. The other end of the anti-buoyancy component 12 is engaged in the upper connecting end 111, thereby solving the displacement problem caused by buoyancy in existing hollow prestressed floor slab filling devices, avoiding displacement of the filling box and squeezing of the rib beam protective layer, and ensuring uniform thickness of the rib beam protective layer. The fixed template 13 further improves the stability of the filling device and prevents it from floating, thereby improving the construction quality and structural safety of the hollow floor slab.

[0035] Please refer to the following: Figure 1 In some embodiments, the upper connecting end 111 is provided with a concave area 1111, a platform area 1112, and a ramp area 1113. The concave area 1111 is provided with a clearance groove 1114, which is used to connect the upper connecting end 111 and the lower connecting end 112. The angle between the outer extension of the concave area 1111 and the platform area 1112 is set to an obtuse angle. The angle between the outer extension of the platform area 1112 and the ramp area 1113 is also set to an obtuse angle, thereby optimizing the connection stability of the anti-buoyancy component 12 and enabling it to better lock the filling box 11 when subjected to buoyancy, thus preventing displacement.

[0036] Please refer to the following: Figures 1 to 2 In some embodiments, the platform area 1112 is provided with a plurality of anti-buoyancy holes 1115, all of which penetrate the filling box 11; anti-buoyancy pull tabs 1116 are provided on the outer periphery of each of the plurality of anti-buoyancy holes 1115. This enhances the anti-buoyancy capability of the filling device, effectively counteracts the buoyancy generated during concrete pouring, and prevents the box from floating. Furthermore, the anti-buoyancy component 12 can pass through the filling box 11, forming a more stable fixing effect with the template 13.

[0037] Please refer to the following: Figure 2In some embodiments, the diameter of the anti-buoyancy plate 1116 is 4 to 5 times the diameter of the anti-buoyancy hole 1115, thereby increasing its stress-bearing area and more effectively resisting the floating of the filling device while ensuring connection reliability. The anti-buoyancy plate 1116 and the anti-buoyancy hole 1115 are detachably connected. This enhances construction flexibility, facilitates installation, adjustment, and disassembly, and makes the device more suitable for different construction environments.

[0038] Please refer to the following: Figure 3 In some embodiments, the lower connecting end 112 is provided with a contact protrusion 1121, which enables the filling box 11 to form a more stable contact with the base plate, reducing the possibility of sliding and displacement. The transverse cross-section of the contact protrusion 1121 is set as an isosceles trapezoid, which enhances the shear resistance and makes the filling device more stable during construction. The contact protrusion 1121 is also provided with a number of steel bar grooves, which are used to adapt to the steel bars of the base plate, thereby further improving the bonding effect between the filling box 11 and the steel mesh, enabling the device to better adapt to the steel bar layout on the construction site and improve the overall structural strength.

[0039] Please refer to the following: Figures 3 to 4 In some embodiments, the template 13 is provided with a plurality of template 13 holes corresponding one-to-one with the plurality of anti-buoyancy holes 1115, and the plurality of template 13 holes are all used for the anti-buoyancy component 12 to pass through. This can ensure that the anti-buoyancy component 12 passes smoothly through the template 13, forming a more stable fixed structure, making the filling device and the template 13 more tightly combined, and preventing the filling box 11 from loosening due to the displacement of the template 13.

[0040] Please refer to the following: Figure 4 In some embodiments, the outer surface of the filling box 11 is provided with a plurality of anti-slip protrusions 113, which are distributed circumferentially along the filling box 11. The design of the anti-slip protrusions 113 in the filling box 11 increases the friction of the filling box 11, improves its stability during concrete pouring, and prevents the filling box 11 from moving horizontally during concrete pouring.

[0041] In some embodiments, the spacing of the anti-slip protrusions 113 is adapted to the spacing of the steel mesh of the hollow prestressed floor slab. All of the anti-slip protrusions 113 are used to limit the horizontal displacement of the filling box 11 during concrete pouring, thereby effectively preventing the filling box 11 from moving horizontally during concrete flow and improving the overall construction quality of the floor slab structure.

[0042] Please refer to the following: Figures 3 to 4In some embodiments, the anti-buoyancy component 12 includes an anti-buoyancy tie rod 121 and a tie rod nut 122. One end of the anti-buoyancy tie rod 121 is provided with an anti-buoyancy cap 1211, which effectively increases the contact area with the filling box 11, reduces local stress concentration, and prevents damage. The other end of the anti-buoyancy tie rod 121 is provided with an external thread section 1212; the tie rod nut 122 is used to engage with the external thread section 1212, thereby ensuring a stable connection of the anti-buoyancy component 12 and making the fixing effect more reliable.

[0043] Please refer to the following: Figure 5 In some embodiments, the external thread section 1212 is provided with a threaded area 1213 and a smooth area 1214. The threaded area 1213 and the smooth area 1214 are alternately arranged, which can provide different connection and fastening effects, improve the stability of the threaded connection, and improve the durability and safety of the entire filling device.

[0044] In summary, this application provides an anti-buoyancy hollow prestressed floor slab filling device, comprising: a filling box for filling the hollow prestressed floor slab; the filling box having an upper connecting end and a lower connecting end disposed opposite to each other; an anti-buoyancy component connected to the filling box for limiting the upward floating of the filling box; and a template disposed below the filling box and fixed within the hollow prestressed floor slab. One end of the anti-buoyancy component is inserted from the upper connecting end and extends from the lower connecting end, fixed within the template; the other end of the anti-buoyancy component is engaged with the upper connecting end. This solves the displacement problem caused by buoyancy in existing hollow prestressed floor slab filling devices, preventing the filling box from shifting and compressing the rib beam protective layer, and ensuring uniform thickness of the rib beam protective layer. The fixed template further improves the stability of the filling device, preventing floating and thus enhancing the construction quality and structural safety of the hollow floor slab.

[0045] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A buoyancy-resistant hollow prestressed floor slab filling device, characterized in that, include: A filling box for filling hollow prestressed floor slabs; the filling box has an upper connecting end and a lower connecting end that are arranged opposite to each other; An anti-buoyancy component is connected to the filling box and is used to limit the upward floating of the filling box; A template is provided below the infill box and is fixed in the hollow prestressed floor slab. One end of the anti-buoyancy component is inserted from the upper connecting end and extends from the lower connecting end, and is fixed in the template; the other end of the anti-buoyancy component is snapped into the upper connecting end.

2. The anti-buoyancy hollow prestressed floor slab filling device according to claim 1, characterized in that, The upper connecting end is provided with a concave area, a platform area and a slope area. The concave area is provided with a clearance groove, which is used to connect the upper connecting end and the lower connecting end. The angle between the outer extension line of the concave area and the platform area is set to an obtuse angle. The angle between the outer extension line of the platform area and the slope area is set to an obtuse angle.

3. The anti-buoyancy hollow prestressed floor slab filling device according to claim 2, characterized in that, The platform area is provided with a number of anti-buoyancy holes, all of which penetrate the filling box; anti-buoyancy pull tabs are provided on the outer periphery of the number of anti-buoyancy holes.

4. The anti-buoyancy hollow prestressed floor slab filling device according to claim 3, characterized in that, The diameter of the anti-buoyancy plate is 4 to 5 times the diameter of the anti-buoyancy hole, and the anti-buoyancy plate and the anti-buoyancy hole are detachably connected.

5. The anti-buoyancy hollow prestressed floor slab filling device according to claim 4, characterized in that, The lower connecting end is provided with a contact protrusion, the transverse cross section of which is an isosceles trapezoid, and the contact protrusion is also provided with a plurality of steel bar grooves, which are used to adapt to the bottom plate steel bars.

6. The anti-buoyancy hollow prestressed floor slab filling device according to claim 4, characterized in that, The template is provided with a plurality of template holes corresponding one-to-one with the plurality of anti-buoyancy holes, and the plurality of template holes are all used for the anti-buoyancy components to pass through.

7. The anti-buoyancy hollow prestressed floor slab filling device according to claim 6, characterized in that, The outer surface of the filling box is provided with a number of anti-slip protrusions, which are distributed along the circumference of the filling box.

8. The anti-buoyancy hollow prestressed floor slab filling device according to claim 7, characterized in that, The spacing of the anti-slip protrusions is adapted to the spacing of the steel mesh of the hollow prestressed floor slab, and several of the anti-slip protrusions are used to limit the horizontal displacement of the filling box during concrete pouring.

9. The anti-buoyancy hollow prestressed floor slab filling device according to claim 4, characterized in that, The anti-buoyancy component includes: An anti-buoyancy tie rod, wherein one end of the anti-buoyancy tie rod is provided with an anti-buoyancy rod cap, and the other end of the anti-buoyancy tie rod is provided with an external thread section; A tie rod nut, which is used to engage with the external threaded section.

10. The anti-buoyancy hollow prestressed floor slab filling device according to claim 9, characterized in that, The external thread section is provided with a threaded area and a smooth area, which are alternately arranged.

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