Prefabricated concrete floor with sound insulation function

Abstract

The utility model discloses a prefabricated assembly type concrete floor slab with a sound insulation function, and belongs to the technical field of prefabricated assembly type concrete floor slabs, the prefabricated assembly type concrete floor slab comprises prefabricated wallboards, an upper pouring mold, a lower pouring mold and a sound insulation structure, the sound insulation structure is installed in the prefabricated wallboards, the lower pouring mold is installed on the lower end faces of the pair of prefabricated wallboards, and the sound insulation structure is installed in the prefabricated wallboards. And the upper pouring mold is mounted on the upper end surfaces of the pair of prefabricated wallboards. According to the utility model, the one-time pouring mold is additionally arranged between the adjacent concrete floor slabs, so that compared with the additional arrangement of a traditional wooden pouring mold, the installation preparation process of the designed one-time pouring mold is greatly simplified, the installation efficiency of the pouring mold is effectively improved, and the structural matching between the pouring mold and the floor slabs is greatly improved; certain structural connection strength can be provided in the early stage of building of the floor slabs, and the structural strength between the adjacent concrete floor slabs is greatly improved in cooperation with the reinforcing steel bars which are distributed in a crossed mode inside after concrete in the pouring mold is solidified.

Description

Technical Field

[0001] This application relates to the technical field of precast concrete floor slabs, and more particularly to a precast concrete floor slab with sound insulation function. Background Technology

[0002] In the current infrastructure industry, in order to effectively improve the construction efficiency of infrastructure projects, most construction companies have adopted a more efficient BIM modular wall and floor slab construction method compared to the traditional direct pouring of concrete wall structures. This method effectively improves the efficiency of construction projects. In this process, a large number of prefabricated concrete floor slabs and prefabricated concrete wall panels are usually used.

[0003] However, existing precast concrete floor slabs have certain drawbacks in practical applications: while they effectively improve the efficiency of building construction, the current method of assembling concrete floor slabs involves simply building wooden concrete casting molds and then pouring concrete to form the slabs, which connects adjacent slabs into one unit. Although this method can ensure the connection strength between slabs, it has a certain impact on the overall operational efficiency of the floor slab construction. Summary of the Invention

[0004] The purpose of this application is to solve the shortcomings of existing precast concrete floor slabs, which involve cumbersome operation steps and limit the overall construction efficiency when adjacent floor slabs are poured together.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: It includes a precast wall panel, an upper casting mold, a lower casting mold, and a sound insulation structure. The sound insulation structure is installed inside the precast wall panel. The lower casting mold is installed on the lower end face of a pair of precast wall panels. The upper casting mold is installed on the upper end face of a pair of precast wall panels. A second assembly is fixedly connected to the upper end face of the lower casting mold. The second assembly is symmetrically arranged on both sides of the upper end face of the lower casting mold. A first assembly is fixedly connected to the lower end face of the upper casting mold. The first assembly is symmetrically arranged on both sides of the lower end face of the upper casting mold. The second assembly is slidably connected to the outer wall of the first assembly. Multiple casting grooves are evenly formed inside the upper casting mold. Assembly grooves are formed inside the precast wall panel. Assembly blocks are fixedly connected to both sides of the lower end face of the upper casting mold. Assembly blocks are also fixedly connected to both sides of the upper end face of the lower casting mold. Multiple pairs of assembly blocks are slidably connected to the assembly grooves.

[0006] As a preferred embodiment, the sound insulation structure includes a first heat-reflecting layer, a first thermal insulation layer, a sound-absorbing layer, a second thermal insulation layer, and a second heat-reflecting layer. The sound-absorbing layer is fixedly connected inside the sound insulation structure. The first thermal insulation layer is fixedly connected to the upper end face of the sound-absorbing layer, and the second thermal insulation layer is fixedly connected to the lower end face of the sound-absorbing layer. The first heat-reflecting layer is fixedly connected to the upper end face of the first thermal insulation layer, and the second heat-reflecting layer is fixedly connected to the lower end face of the second thermal insulation layer. The first and second heat-reflecting layers are made of aluminum foil, the first and second thermal insulation layers are made of rock wool, and the sound-absorbing layer is made of mineral wool.

[0007] As a preferred embodiment, the prefabricated wall panel is internally fixedly connected to a support frame, and the support frame is configured as two and distributed on both sides of the sound insulation structure.

[0008] As a preferred embodiment, the support frame has multiple grooves inside, which are evenly distributed on the upper and lower surfaces of the support frame. Multiple transverse steel bars are fixedly connected inside the support frame, and each of the transverse steel bars is in contact with one of the multiple grooves.

[0009] As a preferred embodiment, the precast wall panel is internally fixedly connected with multiple longitudinal steel bars, which are evenly distributed on the upper and lower ends of the transverse steel bars.

[0010] As a preferred embodiment, the precast wall panel is internally fixedly connected with a concrete filling layer, and the transverse reinforcing bars, longitudinal reinforcing bars, sound insulation structure and support frame are all wrapped within the concrete filling layer.

[0011] As a preferred embodiment, the precast wall panel is internally fixedly connected to a fixing plate, and a lifting ring is fixedly connected to the upper end face of the fixing plate, with the lifting ring located on the outside of the precast wall panel.

[0012] As a preferred embodiment, the precast wall panel has multiple first mating grooves equidistantly spaced inside, and the multiple first mating grooves are evenly spaced on the four sides of the precast wall panel. The upper casting mold and the lower casting mold both have second mating grooves inside, and the multiple second mating grooves correspond to the first mating grooves.

[0013] Compared with the prior art, the beneficial effects of this application are as follows:

[0014] (1) The concrete floor slabs designed in this way, compared with the traditional precast concrete floor slabs, are constructed by adding an upper casting mold and a lower casting mold when building two adjacent floor slabs, forming a one-time casting mold. The one-time casting mold is then fixed by bolts. The overall structural design, by adding a one-time casting mold between adjacent concrete floor slabs, greatly simplifies the installation preparation process of the one-time casting mold compared with the traditional wooden casting mold, effectively improving the installation efficiency of the casting mold. Moreover, the structural cooperation between the casting mold and the floor slab can provide a certain structural connection strength in the early stage of floor slab construction. Furthermore, after the concrete in the casting mold has solidified, the internal cross-distributed steel bars greatly improve the structural strength between adjacent concrete floor slabs.

[0015] (2) Compared with traditional precast concrete floor slabs, the current concrete floor slab design incorporates a sound insulation structure between the upper and lower steel reinforcement skeletons during the construction of the floor slab's steel reinforcement skeleton before the floor slab is poured. This method allows the current floor slab to have sound absorption characteristics through the sound-absorbing layer in the sound insulation structure, good thermal insulation properties through the first and second thermal insulation layers in the sound insulation structure, and effective heat reduction through the first and second anti-radiation layers. The overall structural design ensures that the floor slab has good sound insulation and absorption performance as well as good thermal insulation performance, while maintaining its own structural strength. Attached Figure Description

[0016] Figure 1 This is an isometric view of a prefabricated assembled concrete floor slab with sound insulation function.

[0017] Figure 2 This is an axonometric drawing of a prefabricated assembled concrete floor slab with sound insulation function;

[0018] Figure 3 This is a cross-sectional axonometric view of a prefabricated assembled concrete floor slab with sound insulation function.

[0019] Figure 4 This is an axonometric drawing of the skeleton structure of a prefabricated assembled concrete floor slab with sound insulation function.

[0020] Figure 5 This is an exploded isometric view of the sound insulation structure of a prefabricated assembled concrete floor slab with sound insulation function.

[0021] Figure 6 This is an isometric view of the support frame for a prefabricated assembled concrete floor slab with sound insulation function.

[0022] Figure 7 This is an exploded isometric view of the casting formwork structure of a precast assembled concrete floor slab with sound insulation function.

[0023] In the diagram: 1. Precast wall panel; 2. Lifting ring; 3. Horizontal reinforcement; 4. Longitudinal reinforcement; 5. First mating groove; 6. Concrete filling layer; 7. Sound insulation structure; 71. First heat radiation reflector layer; 72. First thermal insulation layer; 73. Sound absorption layer; 74. Second thermal insulation layer; 75. Second heat radiation reflector layer; 8. Fixing plate; 9. Support frame; 10. Groove; 11. Assembly groove; 12. First assembly component; 13. Upper casting mold; 14. Casting groove; 15. Second mating groove; 16. Lower casting mold; 17. Assembly block; 18. Second assembly component. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-7The precast concrete floor slab with sound insulation function shown includes a precast wall panel 1, an upper casting mold 13, a lower casting mold 16, and a sound insulation structure 7. The sound insulation structure 7 is installed inside the precast wall panel 1. The lower casting mold 16 is installed on the lower end face of a pair of precast wall panels 1, and the upper casting mold 13 is installed on the upper end face of a pair of precast wall panels 1. A second assembly 18 is fixedly connected to the upper end face of the lower casting mold 16, and the second assembly 18 is symmetrically arranged on both sides of the upper end face of the lower casting mold 16. A first assembly 12 is fixedly connected to the lower end face of the upper casting mold 13, and the first assembly 12 is symmetrically arranged on both sides of the lower end face of the upper casting mold 13. The second assembly 18 is slidably connected to the outer wall of the first assembly 12. Multiple casting grooves 14 are evenly opened inside the upper casting mold 13, and the precast wall panel 1 has multiple casting grooves 14 evenly opened inside the upper casting mold 1. There is an assembly groove 11. Assembly blocks 17 are fixedly connected to both sides of the lower end face of the upper casting mold 13 and both sides of the upper end face of the lower casting mold 16. Multiple pairs of assembly blocks 17 are slidably connected to the assembly groove 11. The first assembly 12 and the second assembly 18 are slidably connected to each other. Then, the second assembly 18 can be fixed in the first assembly 12 by installation bolts, so as to realize the connection and fixation between the upper casting mold 13 and the lower casting mold 16. The casting grooves 14 are evenly opened on the upper casting mold 13. Concrete can be poured into different casting grooves 14 in sequence to ensure that the filling degree of the concrete in the casting mold meets the construction requirements. The sliding connection between the assembly blocks 17 and the assembly groove 11 can ensure the tightness of the connection between the casting mold and the precast wall panel 1.

[0029] The sound insulation structure 7 includes a first heat-reflecting layer 71, a first thermal insulation layer 72, a sound-absorbing layer 73, a second thermal insulation layer 74, and a second heat-reflecting layer 75. The sound-absorbing layer 73 is fixedly connected inside the sound insulation structure 7. The first thermal insulation layer 72 is fixedly connected to the upper end face of the sound-absorbing layer 73, and the second thermal insulation layer 74 is fixedly connected to the lower end face of the sound-absorbing layer 73. The first heat-reflecting layer 71 is fixedly connected to the upper end face of the first thermal insulation layer 72, and the second heat-reflecting layer 75 is fixedly connected to the lower end face of the second thermal insulation layer 74. The first heat-reflecting layer 71 and the second heat-reflecting layer 75 are made of aluminum foil. The first thermal insulation layer 72 and the second thermal insulation layer 74 are made of rock wool, and the sound-absorbing layer 73 is made of mineral wool. The current equipment comprises a sound insulation structure 7 installed within the precast wall panel 1. Through the sound-absorbing layer 73 composed of mineral wool board within the sound insulation structure 7, the precast wall panel 1 possesses certain sound absorption and insulation properties. Through the first thermal insulation layer 72 and the second thermal insulation layer 74 composed of rock wool board within the sound insulation structure 7, the precast wall panel 1 possesses good thermal insulation properties. Through the first heat-reflecting radiation layer 71 and the second heat-reflecting radiation layer 75 composed of aluminum foil within the sound insulation structure 7, the precast wall panel 1 can effectively reduce heat transferred through radiation. The overall structural design enables the equipment to possess good sound insulation and absorption performance as well as good thermal insulation performance, while maintaining its own structural strength.

[0030] The precast wall panel 1 is internally fixedly connected with a support frame 9. There are two support frames 9, which are distributed on both sides of the sound insulation structure 7. The support frames 9 are set to facilitate the separation of the upper and lower steel reinforcement skeletons, and reserve sufficient space for the installation of the sound insulation structure 7.

[0031] The support frame 9 has multiple grooves 10 inside, which are evenly distributed on the upper and lower surfaces of the support frame 9. Multiple transverse steel bars 3 are fixedly connected inside the support frame 9, and the multiple transverse steel bars 3 are respectively attached to the multiple grooves 10. The grooves 10 on the support frame 9 can prevent the support frame 9 from sliding by engaging with the lower transverse steel bars 3 when the support frame 9 is placed on the lower steel bar skeleton. At the same time, when the upper steel bar skeleton is placed, the engagement between the upper transverse steel bars 3 and the grooves 10 can effectively prevent the upper steel bar skeleton from sliding.

[0032] The precast wall panel 1 has multiple longitudinal steel bars 4 fixedly connected inside. The multiple longitudinal steel bars 4 are evenly distributed on the upper and lower ends of the transverse steel bars 3. Before the wall panel is poured, the multiple longitudinal steel bars 4 are fixed to the bottom end of the lower transverse steel bars 3 and the top end of the upper transverse steel bars 3 by steel wire binding, which effectively improves the structural strength of the wall panel frame.

[0033] The precast wall panel 1 is internally fixedly connected by a concrete filling layer 6. The transverse steel bars 3, longitudinal steel bars 4, sound insulation structure 7 and support frame 9 are all wrapped inside the concrete filling layer 6. The concrete filling layer 6 is the concrete pouring in the subsequent wall panel production, which constitutes the main structure of the wall panel and completes the forming of the wall panel.

[0034] The precast wall panel 1 is internally fixedly connected to a fixing plate 8, and a lifting ring 2 is fixedly connected to the upper end of the fixing plate 8. The lifting ring 2 is located on the outside of the precast wall panel 1. The fixing plate 8 is located inside the precast wall panel 1, and the lifting ring 2 on the fixing plate 8 is located on the outside of the precast wall panel 1. Through this structural design, it is convenient for hoisting equipment to lift and move the wall panel for construction by means of hoisting ropes during the assembly and construction of the wall panel.

[0035] Multiple first mating grooves 5 are equidistantly provided inside the precast wall panel 1. The multiple first mating grooves 5 are evenly provided on the four sides of the precast wall panel 1. The upper casting mold 13 and the lower casting mold 16 are both provided with second mating grooves 15. The multiple second mating grooves 15 correspond to the first mating grooves 5. The first mating grooves 5 provided on the precast wall panel 1 facilitate engagement with the steel bars on the wall panel during the assembly of the floor slab, which can play a role in the structural fixation of the floor slab in the initial stage of construction. The second mating grooves 15 are provided in the upper casting mold 13 and the lower casting mold 16.

[0036] Working principle: In actual use, the construction worker first places the second matching groove 15 on multiple casting molds 16 with the steel bars at the top of the wall panel. After all the casting molds 16 are placed, the crane operator, under the construction worker's command, moves the crane hook to a position directly above the floor slab. Then, the construction worker near the floor slab pulls the hoisting rope on the hook to the lifting ring 2 on the precast wall panel 1, wraps the hoisting rope and the lifting ring 2 together and knots them tightly. Guy ropes are tied to both sides of the precast wall panel 1. After completing the above operations, the crane operator, under the construction worker's command, lifts the precast wall panel 1 and slowly moves it above the floor slab construction site. During the hoisting process, the construction worker is strictly prohibited from entering below the floor slab's movement path.

[0037] After the crane operator lowers the floor slab to the designated position under the command of the construction worker, the height of the floor slab is slowly lowered according to the real-time command of the construction worker. At this time, the construction worker at the floor slab construction site uses the guy ropes tied to the floor slab to pull the precast wall panel 1 to make small-amplitude angle and position fine adjustments. Finally, after the precast wall panel 1 is lowered, the steel bars on the lower supporting wall panel can engage with the first mating groove 5 opened on the side of the precast wall panel 1, and the assembly groove 11 on the precast wall panel 1 can be aligned with the assembly block 17 on the lower casting form 16 to engage, thus completing the construction and installation of the precast wall panel 1.

[0038] After completing the initial construction of all floor slabs on the current floor, the construction worker then places multiple upper casting molds 13, aligns the assembly block 17 at the lower end of the upper casting mold 13 with the assembly slot 11 at the upper end of the precast wall panel 1, aligns the first assembly part 12 at the lower end of the upper casting mold 13 and the second assembly part 18 at the upper end of the lower casting mold 16, and inserts and assembles the upper casting mold 13. Then, the construction worker installs bolts on the second assembly part 18 in sequence, and fixes the upper casting mold 13 and the lower casting mold 16 into one piece by bolt installation.

[0039] After completing the above operations, the construction worker can use the pump pipe of the towing concrete pump truck to pour concrete into the pouring grooves 14 on multiple upper pouring molds 13, complete the concrete pouring and molding between multiple precast wall panels 1, and complete the floor slab installation.

[0040] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A precast assembled concrete floor slab with sound insulation function, comprising precast wall panels (1), upper casting mold (13), lower casting mold (16), and sound insulation structure (7), characterized in that: The sound insulation structure (7) is installed inside the precast wall panel (1), the lower casting mold (16) is installed on the lower end face of a pair of precast wall panels (1), and the upper casting mold (13) is installed on the upper end face of a pair of precast wall panels (1). The upper end face of the lower casting mold (16) is fixedly connected to a second assembly (18), which is symmetrically arranged on both sides of the upper end face of the lower casting mold (16). The lower end face of the upper casting mold (13) is fixedly connected to a first assembly (12), which is symmetrically arranged on both sides of the lower end face of the upper casting mold (13). The second assembly (18) is slidably connected to the outer wall of the first assembly (12). Multiple casting grooves (14) are evenly opened inside the upper casting mold (13). An assembly groove (11) is opened inside the precast wall panel (1). Assembly blocks (17) are fixedly connected to both sides of the lower end face of the upper casting mold (13). Assembly blocks (17) are also fixedly connected to both sides of the upper end face of the lower casting mold (16). Multiple pairs of assembly blocks (17) are slidably connected to the assembly grooves (11).

2. The prefabricated assembly type concrete floor with sound insulation function according to claim 1, characterized in that: The sound insulation structure (7) includes a first heat-reflecting layer (71), a first heat-insulating layer (72), a sound-absorbing layer (73), a second heat-insulating layer (74), and a second heat-reflecting layer (75). The sound-absorbing layer (73) is fixedly connected to the inside of the sound insulation structure (7). The first heat-insulating layer (72) is fixedly connected to the upper end face of the sound-absorbing layer (73). The second heat-insulating layer (74) is fixedly connected to the lower end face of the sound-absorbing layer (73). The first heat-reflecting layer (71) is fixedly connected to the upper end face of the first heat-insulating layer (72). The second heat-reflecting layer (75) is fixedly connected to the lower end face of the second heat-insulating layer (74). The first heat-reflecting layer (71) and the second heat-reflecting layer (75) are made of aluminum foil. The first heat-insulating layer (72) and the second heat-insulating layer (74) are made of rock wool. The sound-absorbing layer (73) is made of mineral wool.

3. The prefabricated assembly type concrete floor having soundproofing function according to claim 1, characterized in that: The prefabricated wall panel (1) is internally fixedly connected to a support frame (9), and the support frame (9) is configured as two and distributed on both sides of the sound insulation structure (7).

4. The prefabricated assembly type concrete floor having soundproofing function according to claim 3, characterized in that: The support frame (9) has multiple grooves (10) inside, and the multiple grooves (10) are evenly distributed on the upper and lower surfaces of the support frame (9). Multiple transverse steel bars (3) are fixedly connected inside the support frame (9), and the multiple transverse steel bars (3) are respectively attached to the multiple grooves (10).

5. The prefabricated assembly type concrete floor having soundproofing function according to claim 4, characterized in that: The precast wall panel (1) is internally fixedly connected with multiple longitudinal steel bars (4), which are evenly distributed on the upper and lower surfaces of the transverse steel bars (3).

6. The prefabricated assembly type concrete floor having soundproofing function according to claim 5, characterized in that: The precast wall panel (1) is internally fixedly connected to a concrete filling layer (6), and the transverse steel bars (3), longitudinal steel bars (4), sound insulation structure (7) and support frame (9) are all wrapped inside the concrete filling layer (6).

7. The prefabricated assembly type concrete floor having soundproofing function according to claim 1, wherein: The precast wall panel (1) is internally fixedly connected to a fixing plate (8), and a lifting ring (2) is fixedly connected to the upper end face of the fixing plate (8). The lifting ring (2) is located outside the precast wall panel (1).

8. The prefabricated assembly type concrete floor having soundproofing function according to claim 1, wherein: The precast wall panel (1) has multiple first mating grooves (5) evenly spaced inside. The multiple first mating grooves (5) are evenly spaced on the four sides of the precast wall panel (1). The upper casting mold (13) and the lower casting mold (16) both have second mating grooves (15) inside. The multiple second mating grooves (15) correspond to the first mating grooves (5).

Images