Positioning structure for embedded sleeve of composite floor

Abstract

The utility model provides a positioning structure for embedded sleeve of superimposed floor, belongs to the field of building construction technology. Including the superimposed board of prefabricated concrete bottom layer and cast-in-situ concrete superimposed layer, the fixed assembly is penetrated on the superimposed board, the embedded sleeve is installed in the fixed assembly and is penetrated, the fixed assembly includes the locating disc, the middle part fixed setting of locating disc has the vertical locating pipe, and the edge of locating disc is slidably installed with a plurality of U type board, the bottom of U type board is fixed with the locating block, the locating block is opened and has the clamping groove for the steel bar in the prefabricated concrete bottom layer and is connected with the clamping cooperation. The utility model, not only can assist embedded sleeve to adapt to the installation of different specifications of superimposed floor, but also can guarantee the stability of installation, and the overall use effect is good.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a positioning structure for pre-embedded sleeves in composite floor slabs. Background Technology

[0002] In the field of building construction, composite floor slabs are widely used in various building structures due to their combination of the advantages of prefabricated components (factory production) and the integrity of cast-in-place concrete. During the construction of composite floor slabs, the positioning and installation of embedded sleeves is a crucial step, as their installation accuracy directly affects the quality of subsequent pipe and wiring installations.

[0003] Currently, precast layers of composite floor slabs are designed with pre-drilled openings for embedded sleeves during manufacturing. These sleeves are positioned and fixed using the internal steel mesh structure of the precast layer. However, due to the interlacing of the steel mesh within the precast layer, there are numerous gaps. Consequently, the stability of the embedded sleeves, which are positioned and installed by relying on the steel mesh, is poor at these gaps. Furthermore, the mesh size of the steel mesh varies in different precast layers, making it difficult to flexibly install the embedded sleeves in precast layers of different specifications, resulting in overall inconvenience.

[0004] Therefore, this application provides a positioning structure for embedded sleeves in composite floor slabs to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a positioning structure for pre-embedded sleeves in composite floor slabs to solve the problem that the pre-embedded sleeves are unstable in positioning at the gaps of the steel mesh and cannot be adapted to different specifications of precast steel mesh.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] The positioning structure for embedded sleeves in composite floor slabs includes a composite slab composed of a precast concrete base slab and a cast-in-place concrete composite layer. A fixing component runs through the composite slab, and an embedded sleeve is installed through the fixing component. The fixing component includes a positioning plate, a vertical positioning tube is fixedly installed in the center of the positioning plate, and several U-shaped plates are slidably installed on the edge of the positioning plate. A positioning block is fixed at the bottom of the U-shaped plate, and a snap-fit ​​groove is opened on the positioning block for engaging with the reinforcing bars in the precast concrete base slab.

[0008] Optionally, several of the U-shaped plates are evenly distributed along the edge of the positioning disk.

[0009] Optionally, at least four U-shaped plates are provided, and the edge of the positioning disk is provided with multiple sliding grooves corresponding to the U-shaped plates, with the U-shaped plates horizontally inserted into the sliding grooves.

[0010] Optionally, a bolt is rotatably installed in the center of the U-shaped plate, and the bolt thread is inserted into the positioning plate.

[0011] Optionally, the U-shaped plate has a receiving groove at the end away from the positioning plate, and the bolt cap is completely placed in the receiving groove.

[0012] Optionally, the snap-fit ​​groove is an arc-shaped groove.

[0013] Optionally, three slots are provided, located on the bottom surface of the positioning block, on the side of the positioning block facing the positioning disk, and on the side of the positioning block away from the positioning disk, respectively.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above solution, thanks to the cooperation of the positioning plate, U-shaped plate, positioning block and snap-fit ​​groove, the snap-fit ​​groove and the snap-fit ​​limit of the reinforcing bar can be used to fix the embedded sleeve, positioning plate and positioning pipe as a whole stably in the composite slab composed of precast concrete base slab and cast-in-place concrete composite layer, and the fixing effect is good.

[0016] In the above solution, thanks to the combination of U-shaped plate, positioning block and bolt, the spacing of the positioning block can be adjusted according to the mesh size of the steel mesh, so that the device can be flexibly adapted to composite floor slabs of different specifications, ensuring the flexible installation of the embedded sleeve.

[0017] In summary, this device not only assists in the installation of pre-embedded sleeves to adapt to composite floor slabs of different specifications, but also ensures the stability of the installation and has a good overall performance. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1 This is a structural diagram illustrating the application of embedded sleeve positioning structures in composite floor slabs.

[0020] Figure 2 A schematic diagram of the structure for positioning the embedded sleeve in composite floor slabs and its coordination with the reinforcing steel.

[0021] Figure 3 This is a structural diagram of a pre-embedded sleeve positioning structure for composite floor slabs;

[0022] Figure 4 This is a schematic diagram of the U-shaped plate used in the positioning structure of the embedded sleeve in the composite floor slab.

[0023] [Figure Labels]

[0024] 1. Precast concrete base slab; 101. Reinforcing steel; 2. Cast-in-place concrete composite layer; 3. Embedded sleeve; 4. Positioning plate; 401. Slide groove; 5. Positioning pipe; 6. U-shaped plate; 601. Receiving groove; 7. Positioning block; 701. Snap-fit ​​groove; 8. Bolt.

[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0026] The positioning structure for pre-embedded sleeves in composite floor slabs provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art can also use other alternative methods to implement the invention; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0028] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0029] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0030] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0031] like Figure 1-4 As shown, this embodiment of the present invention provides a positioning structure for embedded sleeves in composite floor slabs, which consist of a precast concrete base slab layer 1 and a cast-in-place concrete composite layer 2. The precast concrete base slab layer 1 is precast in a factory, and no sleeve holes are opened during the factory precasting process. The positioning structure is used to determine the insertion position of the embedded sleeve 3 on site. Reinforcing bars 101 are installed inside the precast concrete base slab layer 1, and the reinforcing bars 101 interweave to form a reinforcing mesh. A fixing component is provided in the middle of the composite floor slab, including a positioning plate 4. A vertical positioning tube 5 is fixedly installed in the middle of the positioning plate 4, and the inner diameter of the positioning tube 5 is adapted to the outer diameter of the embedded sleeve 3. In specific implementation, several local grooves are reserved on the upper surface of the precast concrete base slab layer 1, and the depth of the grooves is equal to the thickness of the concrete protective layer, so that the reinforcing bars 101 are partially exposed in the groove area. The groove positions are determined according to the embedded sleeve design drawing. The groove only weakens the protective layer locally. The grooved area will be re-covered with concrete after the cast-in-place layer is constructed, without affecting the structural durability.

[0032] The positioning disk 4 has four U-shaped plates 6 evenly distributed along its edge, and the edge of the positioning disk 4 has multiple grooves 401 corresponding to the U-shaped plates 6. This allows the U-shaped plates 6 to be horizontally slidably installed in the grooves 401, and each U-shaped plate 6 has a bolt 8 rotatably installed in its center, with its threaded portion inserted into the positioning disk 4. Threaded holes are pre-drilled on the positioning disk 4 at the insertion positions of the bolts 8.

[0033] Meanwhile, the end of the U-shaped plate 6 away from the positioning plate 4 is provided with a receiving groove 601, and the bolt 8 is completely placed in the receiving groove 601 to avoid the bolt 8 protruding and affecting subsequent construction operations, such as preventing the bolt 8 from interfering with the concrete during concrete pouring and ensuring the flatness of the concrete pouring surface.

[0034] The bottom of the U-shaped plate 6 is fixed with a positioning block 7. The positioning block 7 is a cuboid metal block with three locking grooves 701. The locking grooves 701 are arc-shaped grooves located on the bottom surface of the positioning block 7, the side of the positioning block 7 facing the positioning plate 4, and the side of the positioning block 7 away from the positioning plate 4, respectively. At least one of these locking grooves 701 can engage with the reinforcing bar 101 in the precast concrete base slab layer 1 according to the installation position. Multiple positioning blocks 7 form a stable limiting and fixing of the position of the positioning plate 4. In specific implementation, the arc radius of the locking groove 701 is designed according to the diameter of the reinforcing bar 101 to ensure a tight engagement and prevent the reinforcing bar 101 from detaching from the locking groove 701 during construction.

[0035] The working principle of this utility model is as follows: For the positioning structure of embedded sleeves in composite floor slabs, during actual installation, the position of the U-shaped plate 6 is first adjusted according to the layout and mesh size of the reinforcing mesh within the precast concrete base layer 1 of the composite floor slab. By rotating the bolts 8, the U-shaped plate 6 slides within the sliding groove 401, adjusting the spacing between the positioning blocks 7 to ensure that the snap-fit ​​grooves 701 on the positioning blocks 7 are accurately aligned with the reinforcing bars 101.

[0036] After the positioning block 7 is positioned, the snap-fit ​​groove 701 on the positioning block 7 is snapped into the reinforcing bar 101. Appropriate pressure is applied to ensure that the snap-fit ​​groove 701 and the reinforcing bar 101 fit tightly together, so that the entire fixing assembly is stably fixed to the reinforcing mesh of the precast concrete base slab layer 1. Then, the embedded sleeve 3 is inserted through the positioning pipe 5. During the insertion process, a high-precision level is used to calibrate the embedded sleeve 3 to ensure that the embedded sleeve 3 is vertical and accurately positioned.

[0037] Finally, the concrete for the composite floor slab cast-in-place concrete composite layer 2 is poured. Before pouring the concrete, the area around the fixing components is thoroughly cleaned to remove debris, dust, and oil stains to ensure a good bond between the concrete and the fixing components.

[0038] During concrete pouring and vibration, due to the close cooperation of positioning plate 4, U-shaped plate 6, positioning block 7 and snap-fit ​​groove 701, the pre-embedded sleeve 3, positioning plate 4 and positioning pipe 5 can maintain high stability as a whole and will not shift, effectively ensuring the installation accuracy of pre-embedded sleeve 3.

[0039] Meanwhile, the positioning structure can flexibly adjust the spacing of the positioning blocks 7 according to the layout and mesh size of the steel mesh in composite floor slabs of different specifications, which can be adapted to composite floor slabs of various specifications, greatly improving the flexibility and efficiency of construction and reducing construction costs.

[0040] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A positioning structure for embedded sleeves in composite floor slabs, comprising a composite slab composed of a precast concrete base slab (1) and a cast-in-place concrete composite layer (2), wherein a fixing component is passed through the composite slab, and an embedded sleeve (3) is installed through the fixing component, characterized in that, The fixing component includes a positioning plate (4), a vertical positioning tube (5) is fixedly installed in the middle of the positioning plate (4), and several U-shaped plates (6) are slidably installed on the edge of the positioning plate (4). A positioning block (7) is fixed at the bottom of the U-shaped plate (6), and a snap-fit ​​groove (701) is opened on the positioning block (7) for snap-fitting with the steel bars (101) in the precast concrete base slab layer (1).

2. The positioning structure for embedded sleeves in composite floor slabs according to claim 1, characterized in that, Several of the U-shaped plates (6) are evenly distributed on the edge of the positioning disk (4).

3. The positioning structure for embedded sleeves in composite floor slabs according to claim 2, characterized in that, At least four U-shaped plates (6) are provided, and the edge of the positioning disk (4) is provided with multiple sliding grooves (401) corresponding to the U-shaped plates (6), and the U-shaped plates (6) are horizontally inserted into the sliding grooves (401).

4. The positioning structure for embedded sleeves in composite floor slabs according to claim 3, characterized in that, A bolt (8) is rotatably installed in the middle of the U-shaped plate (6), and the bolt (8) is threaded into the positioning plate (4).

5. The positioning structure for embedded sleeves in composite floor slabs according to claim 4, characterized in that, The U-shaped plate (6) has a receiving groove (601) at one end away from the positioning plate (4), and the nut of the bolt (8) is completely placed in the receiving groove (601).

6. The positioning structure for embedded sleeves in composite floor slabs according to claim 1, characterized in that, The snap-fit ​​groove (701) is an arc-shaped groove.

7. The positioning structure for embedded sleeves in composite floor slabs according to claim 1, characterized in that, The snap-fit ​​slots (701) are provided in three places, and are respectively located on the bottom surface of the positioning block (7), on the side of the positioning block (7) facing the positioning disk (4), and on the side of the positioning block (7) away from the positioning disk (4).

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