Floor prefabricated prestressed double-T plate

Abstract

The utility model discloses a floor prefabricated prestressed double-T plate, which relates to the technical field of prefabricated buildings and comprises a panel, two rib plates integrally formed with the lower part of the panel and symmetrically arranged relative to the middle part of the panel, and a main body rib cage cast and fixed in the panel and the rib plates, a mounting seat is embedded in the upper end of the panel, a mounting head is integrally formed at the upper end of the mounting seat, a screw hole with an upward opening is formed in the mounting head, and the screw hole is used for being in threaded connection with a hoisting component. The floor prefabricated prestressed double-T plate can be conveniently hoisted, after hoisting is completed, a worker only needs to unscrew the hoisting component to enable the hoisting component to be separated from the mounting head, the hoisting component can be detached, the floor prefabricated prestressed double-T plate is restored to be of a plane structure, and therefore follow-up construction is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a prefabricated prestressed double-T slab for floor slabs. Background Technology

[0002] As a precast concrete component, double-T slabs have promising development prospects. Double-T slabs are mainly used in parking lots; they are also used to form the roofs of sports facilities (such as indoor swimming pools and stadiums), auditoriums, schools, theaters, warehouses, and other types of buildings.

[0003] A search revealed a patent document with publication number "CN210105085U" disclosing a precast prestressed double-T slab flooring. This slab includes a panel with two downward-extending ribs at its bottom. The thickness of the ribs gradually increases from bottom to top, and the connection between the ribs and the panel forms an angle. This structure, due to the use of a prestressed double-T structure, significantly improves the overall rigidity and strength of the product, enabling large-span structures. Furthermore, it allows for on-site prefabrication, saving manufacturing and transportation costs.

[0004] Based on the above search and combined with existing technology, it was found that the existing precast prestressed double-T slabs for floor slabs use precast hoisting components (hooks or nails) on the top to facilitate hoisting. However, after the precast prestressed double-T slabs for floor slabs are installed, the hoisting components become useless, and the protruding hoisting components affect subsequent construction. Therefore, a new type of precast prestressed double-T slab for floor slabs is needed. Utility Model Content

[0005] The purpose of this application is to provide a precast prestressed double-T slab for floor slabs to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a precast prestressed double-T slab for floor slabs, comprising a panel, two ribs integrally formed with the lower part of the panel and symmetrically arranged about the middle of the panel, and a main reinforcing cage cast into the panel and the ribs.

[0007] The upper end of the panel is fitted with a mounting base, and the upper end of the mounting base is integrally formed with a mounting head. The mounting head has an upward-facing screw hole for screwing in the lifting components.

[0008] The upper surface of the mounting head is on the same horizontal plane as the upper surface of the panel.

[0009] Preferably, a groove is provided on the upper surface of the panel, the extension direction of the groove is consistent with the extension direction of the panel, and the groove is an inverted T-shaped groove that is smaller at the top and larger at the bottom.

[0010] The mounting base and mounting head are slidably embedded in the groove.

[0011] Preferably, a limiting block is fixed to the inner top of the slide groove. Multiple limiting blocks are arranged in an equidistant array along the length of the slide groove, and a gap is formed between two adjacent limiting blocks.

[0012] The upper part of the mounting base is equipped with an elastic positioning element that matches the gap.

[0013] Preferably, the upper end face of the mounting base has a groove on the surface located around the mounting head;

[0014] The elastic positioning component includes a locking block and a spring. The locking block is slidably embedded in the groove, and the lower end of the locking block is elastically connected to the bottom wall of the groove through the spring.

[0015] Among them, the card block and the card gap are matched.

[0016] Preferably, the upper end of the card block forms an upwardly protruding arc-shaped top, and both sides of the limiting block have rounded corners that coincide with the arc-shaped top of the card block.

[0017] Preferably, a reinforcing rib cage is formed on the upper part of the main rib cage, the reinforcing rib cage is adapted to the shape of the slide groove, and the reinforcing rib cage covers the periphery of the slide groove.

[0018] In summary, the technical effects and advantages of this utility model are as follows:

[0019] 1. In this utility model, by setting up the mounting base and the mounting head, the workers can screw the lifting component with the threaded structure into the screw hole, thereby completing the installation of the lifting component and facilitating the lifting of the precast prestressed double-T slab of the floor. After the lifting is completed, the workers only need to unscrew the lifting component to separate it from the mounting head, thereby completing the disassembly of the lifting component and restoring the precast prestressed double-T slab of the floor to a planar structure, which facilitates subsequent construction and better meets the actual construction needs. Moreover, it is simple, convenient and quick to operate.

[0020] 2. In this utility model, by sliding the mounting base and mounting head into the groove, the operator can change the position of the mounting base and mounting head according to the hoisting needs, thereby changing the installation position of the hoisting components and meeting different hoisting requirements. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0023] Figure 2 This is a three-dimensional structural diagram of the mounting base in this embodiment;

[0024] Figure 3 This is a side view of the mounting base in this embodiment;

[0025] Figure 4 This is a partial cross-sectional view of the panel in this embodiment;

[0026] Figure 5 This is a side sectional view of this embodiment.

[0027] In the diagram: 1. Panel; 11. Slide groove; 12. Limiting block; 121. Gap; 2. Rib plate; 3. Main rib cage; 31. Reinforcing rib cage; 4. Mounting base; 41. Mounting head; 411. Screw hole; 42. Embedded groove; 43. Locking block; 44. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: Reference Figures 1-5 The precast prestressed double-T slab shown includes a panel 1, two ribs 2 integrally formed with the lower part of the panel 1 and symmetrically arranged about the middle of the panel 1, and a main reinforcement cage 3 cast in the panel 1 and the ribs 2.

[0030] The upper end of the panel 1 is provided with a mounting base 4, and the upper end of the mounting base 4 is integrally formed with a mounting head 41. The mounting head 41 has an upward-facing screw hole 411, which is used to screw on the lifting components (referring to the screw, hook, or ring structure with threaded structure (screw) commonly used in the prior art and applicable to this embodiment).

[0031] The upper surface of the mounting head 41 is on the same horizontal plane as the upper surface of the panel 1.

[0032] Based on the above structure, when hoisting is required, workers can screw the hoisting component with the threaded structure into the screw hole 411 to complete the installation of the hoisting component, which facilitates the hoisting of the precast prestressed double-T slab of the floor. After hoisting, workers only need to unscrew the hoisting component to separate it from the installation head 41, which completes the disassembly of the hoisting component and restores the precast prestressed double-T slab of the floor to a planar structure, which facilitates subsequent construction, better meets the actual construction needs, and is simple, convenient and quick to operate.

[0033] Furthermore, a groove 11 is provided on the upper surface of panel 1. The extension direction of the groove 11 is consistent with the extension direction of panel 1. The groove 11 is an inverted T-shaped groove that is smaller at the top and larger at the bottom.

[0034] The mounting base 4 and the mounting head 41 are slidably embedded in the sliding groove 11, so that the staff can change the position of the mounting base 4 and the mounting head 41 according to the hoisting needs, thereby changing the installation position of the hoisting components and meeting different hoisting requirements.

[0035] Furthermore, a limiting block 12 is fixed to the inner top of the slide groove 11. Multiple limiting blocks 12 are provided and are distributed in an equidistant array along the length direction of the slide groove 11. A gap 121 is formed between two adjacent limiting blocks 12.

[0036] A groove 42 is provided on the upper surface of the mounting base 4, which is located around the mounting head 41;

[0037] The upper end of the mounting base 4 is equipped with an elastic positioning component that is compatible with the gap 121. The elastic positioning component includes a locking block 43 and a spring 44. The locking block 43 is slidably embedded in the groove 42, and the lower end of the locking block 43 is elastically connected to the bottom wall of the groove 42 through the spring 44. The locking block 43 is compatible with the gap 121.

[0038] By setting a limiting block 12, a locking block 43, and a spring 44, the locking block 43 can pop out under the elastic force of the spring 44 and lock into the locking gap 121. Thus, the limiting block 12 and the locking block 43 cooperate to play a limiting role, thereby restricting the position of the mounting base 4 and the mounting head 41 in the slide groove 11. In this way, after adjusting the installation position of the hoisting components, the mounting base 4 and the mounting head 41 are less likely to slide accidentally, ensuring the accurate position of the mounting base 4 and the mounting head 41, and avoiding the subsequent shift of the hoisting center of gravity due to the change of the position of the hoisting components, which could lead to malfunctions or dangers in the hoisting operation.

[0039] To facilitate the adjustment of the positions of the mounting base 4 and the mounting head 41 by the staff, the following settings are made for the locking block 43 and the limiting block 12: the upper end of the locking block 43 forms an upwardly protruding arc-shaped top, and both sides of the limiting block 12 have rounded corners that coincide with the arc-shaped top of the locking block 43.

[0040] With this setting, when the operator pushes the locking block 43, the arc-shaped top edge of the locking block 43 first abuts against the rounded corner of the limiting block 12. Then, as the operator applies a larger pushing force than the elastic force of the spring 44, the spring 44 is compressed, causing the locking block 43 to move down and retract into the groove 42. This allows the locking block 43 to leave the current locking gap 121, making it easier for the operator to push the mounting base 4 and the mounting head 41. The locking block 43 also loses its limiting function. When the locking block 43 moves to the next locking gap 121, the locking block 43 pops out again under the elastic force of the spring 44, rising and locking into the next locking gap 121, thus playing a limiting role again.

[0041] Furthermore, a reinforcing rib cage 31 is formed on the upper part of the main rib cage 3. The reinforcing rib cage 31 is adapted to the shape of the slide groove 11 and covers the periphery of the slide groove 11.

[0042] By reinforcing the rib cage 31, the structural strength around the slide groove 11 can be enhanced, so that the periphery of the slide groove 11 on the panel 1 can withstand the increased gravity during hoisting, meet the hoisting requirements, and prevent cracks or damage from occurring around the slide groove 11 on the panel 1 during hoisting, thus ensuring the safety of hoisting and the integrity of the overall structure of the panel 1.

[0043] The working principle of this utility model is as follows: In daily use, the operator can screw the threaded lifting component into the screw hole 411 to complete the installation of the lifting component, which facilitates the lifting of the precast prestressed double T slab of the floor. After the lifting is completed, the operator only needs to unscrew the lifting component to separate it from the installation head 41, which completes the disassembly of the lifting component and restores the precast prestressed double T slab of the floor to a planar structure, which facilitates subsequent construction and better meets the actual construction needs. Moreover, it is simple, convenient and quick to operate.

[0044] In addition, the mounting base 4 and the mounting head 41 are slidably embedded in the slide groove 11, so that the staff can change the position of the mounting base 4 and the mounting head 41 according to the hoisting needs, thereby changing the installation position of the hoisting components and meeting different hoisting requirements.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precast prestressed double-T slab floor slab, comprising a panel (1), two ribs (2) integrally formed with the lower part of the panel (1) and symmetrically arranged about the middle of the panel (1), and a main reinforcing cage (3) cast in the panel (1) and the ribs (2), characterized in that: The upper end of the panel (1) is provided with a mounting base (4), and the upper end of the mounting base (4) is integrally formed with a mounting head (41). The mounting head (41) is provided with an upward-facing screw hole (411), and the screw hole (411) is used to screw on the hoisting component. The upper surface of the mounting head (41) and the upper surface of the panel (1) are located on the same horizontal plane.

2. The precast prestressed double-T slab for floor slabs according to claim 1, characterized in that: The upper surface of the panel (1) is provided with a groove (11), the extension direction of the groove (11) is consistent with the extension direction of the panel (1), and the groove (11) is an inverted T-shaped groove with a smaller upper part and a larger lower part. The mounting base (4) and mounting head (41) are slidably embedded in the groove (11).

3. A precast prestressed double-T slab for floor slabs according to claim 2, characterized in that: The inner top of the slide (11) is fixed with a limiting block (12). Multiple limiting blocks (12) are provided and are distributed in an equidistant array along the length direction of the slide (11). A gap (121) is formed between two adjacent limiting blocks (12). The upper end of the mounting base (4) is equipped with an elastic positioning element that is compatible with the gap (121).

4. A precast prestressed double-T slab for floor slabs according to claim 3, characterized in that: The upper end face of the mounting base (4) is provided with a groove (42) on the surface of the mounting head (41) around the mounting base; The elastic positioning component includes a locking block (43) and a spring (44). The locking block (43) is slidably embedded in the groove (42). The lower end of the locking block (43) is elastically connected to the bottom wall of the groove (42) through the spring (44). The card block (43) is adapted to the card gap (121).

5. A precast prestressed double-T slab for floor slabs according to claim 4, characterized in that: The upper end of the card block (43) forms an upward-protruding arc-shaped top, and both sides of the limiting block (12) have rounded corners that coincide with the arc-shaped top of the card block (43).

6. A precast prestressed double-T slab for floor slabs according to claim 2, characterized in that: The upper part of the main rib cage (3) is formed with a reinforcing rib cage (31), the reinforcing rib cage (31) is adapted to the shape of the slide groove (11), and the reinforcing rib cage (31) covers the periphery of the slide groove (11).

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