Prefabricated part with connector

Abstract

The utility model discloses a prefabricated part with a connector, and relates to the technical field of prefabricated buildings. The steel bar supporting frame is pre-buried in the prefabricated slab; the connectors are connected with the two ends of the steel bar supporting frame, and the connectors at the two ends of the steel bar supporting frame extend to the end face of the prefabricated slab or extend out of the two ends of the prefabricated slab; the connectors at the ends of the two corresponding steel bar supporting frames in the adjacent prefabricated parts can be connected through the connecting assemblies. The reinforcing steel bar supporting frames are arranged in the prefabricated slabs, the connectors are arranged at the ends of the reinforcing steel bar supporting frames, the adjacent prefabricated slabs can be directly connected through the connecting assemblies, and the problem that in the prior art, after a floor support plate is hoisted, the ends of reinforcing steel bar trusses need to be connected in a welding mode, and the construction cost is lowered is solved. And the construction efficiency is low. Meanwhile, due to the fact that the steel bar supporting frame is pre-buried in the prefabricated slab, secondary large-area pouring is not needed after hoisting is completed.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and more specifically to a prefabricated component with a connector. Background Technology

[0002] With the development of the construction industry, in order to improve the construction efficiency of prefabricated buildings, prefabricated components have been gradually promoted and applied in the construction industry. At present, the most commonly used prefabricated component is the floor deck. A prefabricated slab is set under the steel truss. The steel truss and the prefabricated slab are connected to form the floor deck. After all the floor decks used to build the roof are built, the adjacent floor decks are connected by welding the ends of the truss to form all the floor decks into a whole. Then, concrete is poured on the floor deck, and the steel truss is poured into the concrete to finally form the roof structure.

[0003] However, using floor decking to construct roofs has the following drawbacks: it requires on-site overall concrete pouring, welding between trusses leads to low construction efficiency, high cost, heavy weight, low load capacity, easy hollowing and cracking, poor seismic resistance and other common quality problems, and it cannot be used as a vertical component.

[0004] Therefore, how to provide a prefabricated component that is easy to install and connect, and can also be used for vertical components, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a prefabricated component with a connector, which aims to solve one of the problems in the background art mentioned above, realize the rapid installation of prefabricated components, and improve construction efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A prefabricated component with a connector, comprising:

[0008] Precast slabs;

[0009] The steel reinforcement support frame is embedded inside the precast slab;

[0010] The connector is connected to both ends of the steel bar support frame, and the connectors at both ends of the steel bar support frame extend to the end face of the precast slab or extend beyond both ends of the precast slab.

[0011] The connecting components enable the connection of the connectors at the ends of two corresponding steel reinforcement support frames in adjacent precast components.

[0012] Furthermore, the steel reinforcement support frame includes mesh belts and horizontal bars, and multiple mesh belts and horizontal bars are provided. The multiple mesh belts are spaced apart and interconnected by multiple horizontal bars. The connector is provided at the end of the mesh belt.

[0013] Furthermore, the mesh belt includes longitudinal ribs and web ribs. There are two longitudinal ribs arranged in parallel. The web ribs are arranged between the two longitudinal ribs and are fixedly connected. The connecting head is located at the end of the longitudinal rib.

[0014] Furthermore, each end of the connector is provided with a threaded hole. The connecting assembly includes a screw, a lock nut, and a threaded sleeve. The screw is engaged with the threaded hole at the end of the connector. The lock nut is sleeved on the screw shank portion. The screw head portion can limit the lock nut. The outer wall of the lock nut is provided with threads. The threaded sleeve is used to connect the lock nuts on two corresponding connectors in adjacent prefabricated components to realize the connection of adjacent prefabricated components.

[0015] According to some embodiments of this utility model, the ends of the connectors are provided with threaded holes. The connecting assembly includes a connecting screw, a split sleeve, and a retaining spring clamp. The connecting screw is engaged with the threaded hole at the end of the connector. The inner wall of the split sleeve has a limiting boss that axially limits the screw head portion of the connecting screw. The retaining spring clamp is provided on the split sleeve to connect the connecting screws on two corresponding connectors in adjacent prefabricated components, thereby realizing the connection of adjacent prefabricated components.

[0016] According to some embodiments of this utility model, the ends of the connectors are provided with threaded holes. The connecting assembly includes a first screw, a second screw, and a connecting nut. The first screw and the second screw respectively engage with the threaded holes on the corresponding two connectors in adjacent prefabricated components. The outer wall of the screw head portion of the first screw is provided with external threads. The connecting nut is sleeved on the second screw. The screw head portion of the second screw can axially limit the connecting nut. The connecting nut is connected to the first screw to realize the connection of adjacent prefabricated components.

[0017] According to some embodiments of this utility model, when both ends of the steel reinforcement support extend beyond the two ends of the precast slab, the connector is an enlarged head, and the connecting assembly includes a nut and a lock nut sleeve. The nut is sleeved on the outer wall of the enlarged head, and the outer wall of the nut has an external thread. The inner wall of the nut is connected to the enlarged head. The lock nut sleeve is sleeved on the connector corresponding to the nut on the adjacent precast component. The inner wall of the lock nut sleeve has an internal thread that mates with the outer wall of the nut. The lock nut sleeve is threadedly connected to the nut to achieve the connection of adjacent precast components.

[0018] Furthermore, at least one of the enlarged head connecting the nut and the enlarged head connecting the lock nut sleeve has a threaded hole at its end, and a preload screw is installed at the threaded hole.

[0019] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a precast component with connectors. By setting a steel support frame inside the precast slab and setting connectors at the ends of the steel support frame, adjacent precast components can be directly connected using the connecting components. This solves the problem of low construction efficiency in the prior art where the ends of the steel truss need to be connected by welding after the floor deck is hoisted. At the same time, since the steel support frame is embedded inside the precast slab, no secondary large-area pouring is required after hoisting. Furthermore, the precast component can also be used directly as a vertical component, solving the defect that the existing floor deck cannot be used as a vertical component. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A structural schematic diagram of the prefabricated component with a connector provided by this utility model;

[0022] Figure 2 A schematic diagram of the structure of the prefabricated component with a decorative layer and a composite layer provided by this utility model;

[0023] Figure 3 This is a schematic diagram of the connection structure between adjacent prefabricated components in Embodiment 1 of this utility model;

[0024] Figure 4 A schematic diagram of the structure of the connecting component provided by this utility model is a ring anchor;

[0025] Figure 5 A schematic diagram of the structure of the connecting component provided by this utility model is a bent anchor;

[0026] Figure 6 This is a schematic diagram of the connection structure between adjacent prefabricated components in Embodiment 2 of this utility model;

[0027] Figure 7 This is a schematic diagram of the connection structure between adjacent prefabricated components in Embodiment 3 of this utility model;

[0028] Figure 8 This is a schematic diagram of the connection structure between adjacent prefabricated components in Embodiment 4 of this utility model;

[0029] Figure 9 This is a schematic diagram of the connection structure in Embodiment 4 of the present invention, in which pre-tightening screws are provided in adjacent prefabricated components.

[0030] Wherein: 1 is a precast slab; 2 is a steel reinforcement support frame; 21 is a mesh belt; 211 is a longitudinal bar; 212 is a web bar; 22 is a transverse bar; 3 is a connector; 4 is a connecting assembly; 41a is a screw; 42a is a lock nut; 43a is a threaded sleeve; 41b is a connecting screw; 42b is a split sleeve; 43b is a snap ring sleeve; 41c is the first screw; 42c is the second screw; 43c is the connecting nut; 41d is a nut; 42d is a lock nut sleeve; 5 is a ring anchor; 6 is a bent anchor; 7 is a decorative layer; 8 is a composite layer; 9 is a pre-tightening screw. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] See Figure 1-3 This utility model embodiment discloses a precast component with a connector, including: a precast slab 1, a steel reinforcement support frame 2, and a connector 3.

[0034] Precast slab 1 is preferably a slab structure made of sand and gravel concrete.

[0035] The steel reinforcement support frame 2 is embedded inside the precast slab 1. During the pouring of the precast slab 1, the steel reinforcement support frame 2 is placed in the sand and gravel concrete before the sand and gravel concrete has solidified. After the sand and gravel concrete has solidified, the steel reinforcement support frame 2 and the precast slab 1 form a whole. The pouring of the precast slab 1 is carried out in the formwork box. The size and thickness of the precast slab 1 can be determined by the size of the formwork box. The steel reinforcement support frame 2 can be a traditional triangular truss, a rectangular column truss, or a planar truss.

[0036] The connector 3 is connected to both ends of the reinforcing bar support frame 2, and the connector 3 at both ends of the reinforcing bar support frame 2 extends to the end face of the precast slab 1 or extends beyond both ends of the precast slab 1. The connector 3 is preferably connected to the end of the reinforcing bar support frame 2 by extrusion. The connection between the connector 3 and the reinforcing bar support frame 2 is pre-formed before the process of pouring the sand and gravel concrete into the precast slab 1.

[0037] The connecting component 4 connects the connectors 3 at the ends of two corresponding steel reinforcement support frames 2 in adjacent precast components. The connecting component 4 is used to connect the corresponding connectors 3 on adjacent precast components to achieve the connection of adjacent precast components.

[0038] When using the precast components in this embodiment for building roofs, since the precast steel reinforcement support frame 2 is embedded inside the precast slab 1, given the structural characteristics of the precast slab 1, it is only necessary to place the end of the precast slab 1 onto the support beam. Along the length of the precast components, adjacent precast components are connected by the connector 3 at the end of the steel reinforcement support frame 2, thereby forming multiple precast components into a whole. The connection component 4 and connector 3 improve the connection speed of adjacent precast components, thus increasing construction efficiency. Unlike existing technologies where the floor deck is erected first, it is not necessary to... The ends of the steel truss are welded one by one to the ends of the steel truss on the next floor slab. After welding, the bottom plate in the floor slab forms a support. A large-area secondary pour is still required on the floor slab to finally cast the steel truss into the concrete. However, when using the precast components of this utility model, since the precast steel support frame 2 is embedded in the precast slab 1, after the precast components are overlapped, only a small area of ​​pouring is needed at the connection part of the adjacent precast components to complete the construction of the building roof. There is no need for a large-area secondary pour, which can improve construction efficiency.

[0039] It should be noted that in this embodiment, multiple hollow sections can be provided on the precast slab 1. The hollow sections reduce the weight of the precast slab 1, thereby reducing the weight of the final precast component. (See [reference]). Figure 4 and 5 In other embodiments, when the connectors 3 at both ends of the steel bar support frame 2 extend beyond both ends of the precast slab 1, the connectors 3 can be set as ring anchors 5 or bent anchors 6. Adjacent precast components are intertwined through the ring anchors 5 or bent anchors 6 set at their ends. In this case, the connecting component 4 is a binding wire, and the connection of the ring anchors 5 or the bent anchors 6 is achieved by binding. Alternatively, one end of the precast component can be set as a connector 3, and the other end can be set as a ring anchor 5 or bent anchor 6.

[0040] In this embodiment, preferably, the steel reinforcement support frame 2 includes mesh strips 21 and transverse bars 22. Multiple mesh strips 21 and transverse bars 22 are provided, with the mesh strips 21 spaced apart and interconnected by multiple transverse bars 22. Connecting heads 3 are located at the ends of the mesh strips 21. The steel reinforcement support frame 2 formed by the multiple mesh strips 21 and multiple transverse bars 22 is a mesh frame structure. Specifically, the mesh strip 21 includes longitudinal bars 211 and web bars 212. Two longitudinal bars 211 are provided, arranged parallel to each other. The web bars 212 are located between the two longitudinal bars 211, and the web bars 212 and longitudinal bars 211 are fixedly connected. Connecting heads 3 are located at the ends of the longitudinal bars 211.

[0041] It should be noted that: the two longitudinal bars 211 that make up the mesh belt 21 are both set inside the precast component. The web bars 212 can be steel bar segments. One end of the steel bar segment is connected to the upper longitudinal bar 211 in the mesh belt 21, and the other end of the steel bar segment is connected to the lower longitudinal bar 211 in the mesh belt 21. There are multiple steel bar segments, which are spaced apart along the length of the longitudinal bar 211. At the same time, the web bars 212 can also be set into a wavy structure, with the crest of the wave connected to the upper longitudinal bar 211 in the mesh belt 21 and the trough connected to the lower longitudinal bar 211 in the mesh belt 21. Alternatively, a combination of steel bar segment web bars and wavy web bars can be used. In other embodiments, the precast slab 1 can also be set as two pieces, with the two precast slabs 1 arranged in parallel and with a gap between them. The upper longitudinal rib 211 of the mesh belt 21 is embedded in one precast slab 1, and the lower longitudinal rib 211 of the mesh belt 21 is embedded in the other precast slab 1. This results in a hollow structure in the middle of the precast component, which not only reduces the weight of the precast component but also provides a certain degree of heat preservation.

[0042] In this embodiment, each end of the connector 3 is provided with a threaded hole. The connecting component 4 includes a screw 41a, a lock nut 42a, and a threaded sleeve 43a. The screw 41a is engaged with the threaded hole at the end of the connector 3. The lock nut 42a is sleeved on the screw shank of the screw 41a. The screw head of the screw 41a can limit the lock nut 42a. The outer wall of the lock nut 42a is provided with threads. The threaded sleeve 43a is used to connect the lock nuts 42a on two corresponding connectors 3 in adjacent prefabricated components to realize the connection of adjacent prefabricated components.

[0043] It should be noted that the diameter of the connector 3 is larger than the diameter of the longitudinal rib 211. A threaded hole is provided at the end of the connector 3 along the axial direction of the longitudinal rib 211. Lock nuts 42a are fitted on both screws 41a. The threads on the outer walls of the lock nuts 42a on the corresponding connectors 3 of the two adjacent prefabricated components have opposite directions. Similarly, the threads on the inner wall of the threaded sleeve 43a are also two threads with different directions. This allows the two lock nuts 42a to move towards or away from each other when the threaded sleeve 43a is rotated. Thus, the rotation of the threaded sleeve 43a can eventually make both lock nuts 42a press against the screws 41a on the corresponding side, providing a certain tension to the longitudinal rib 211.

[0044] According to some embodiments of this utility model, preferably, the prefabricated component with connector 3 further includes a decorative layer 7, which is disposed on one side of the prefabricated slab 1. By providing a decorative layer 7 on one side of the prefabricated slab 1, specifically, the decorative layers 7 at both ends of each prefabricated component can be set into a step shape that can fit together. When two prefabricated components are assembled, the decorative layers 7 can fit together. By setting the decorative layer 7, when the prefabricated component is used as a roof slab, wall panel, or floor slab, subsequent interior surface treatment is omitted, enhancing the aesthetics of the interior.

[0045] According to some embodiments of this utility model, preferably, the prefabricated component with connector 3 further includes a composite layer 8, which is disposed on the side of the prefabricated slab 1 opposite to the side where the decorative layer 7 is disposed. Specifically, the composite layer 8 may include a sound insulation layer, a heat insulation layer, a fireproof layer, and a pre-embedded pipeline layer, thereby enabling the building constructed using the prefabricated component to have the functions of sound insulation, heat insulation, fireproofing, and easy pipeline installation.

[0046] Example 2

[0047] See Figure 6 The difference between this embodiment and the above embodiment lies in the different connecting component 4. Similarly, threaded holes are provided at the ends of the connectors 3. In this embodiment, the connecting component 4 includes a connecting screw 41b, a split sleeve 42b, and a snap ring clamp 43b. The connecting screw 41b is connected to the threaded hole at the end of the connector 3. The inner wall of the split sleeve 42b has a limiting boss that axially limits the screw head portion of the connecting screw 41b. The snap ring clamp 43b is provided on the split sleeve 42b to connect the connecting screws 41b on the corresponding two connectors 3 in adjacent prefabricated components, so as to realize the connection of adjacent prefabricated components.

[0048] It should be noted that the split sleeve 42b can be disassembled into two parts along its axial direction. During use, first install the connecting screw 41b into the threaded hole at the end of the connector 3, adjust the position of the connecting screw 41b in the threaded hole so that the screw heads of the corresponding positions of the connecting screws 41b on the two adjacent prefabricated components abut together, and at the same time, the two connecting screws 41b are on the same straight line. Use the split sleeve 42b to fix the two connecting screws 41b so that the limiting boss inside the split sleeve 42b can form a limiting with the screw head of the connecting screw 41b. Finally, use the snap ring 43b to fix the split sleeve 42b.

[0049] Example 3

[0050] See Figure 7 The difference between this embodiment and the above embodiment lies in the different connecting component 4. Similarly, threaded holes are provided at the ends of the connecting heads 3. In this embodiment, the connecting component 4 includes a first screw 41c, a second screw 42c, and a connecting nut 43c. The first screw 41c and the second screw 42c are respectively connected to the threaded holes on the corresponding two connecting heads 3 in adjacent prefabricated components. The outer wall of the screw head portion of the first screw 41c is provided with external threads. The connecting nut 43c is sleeved on the second screw 42c. The screw head portion of the second screw 42c can axially limit the connecting nut 43c. The connecting nut 43c is connected to the first screw 41c to realize the connection of adjacent prefabricated components.

[0051] It should be noted that during use, the first screw 41c and the second screw 42c are first installed in the threaded holes at the ends of the connector 3 of the two adjacent prefabricated components. Before installing the second screw 42c in the threaded hole at the end of the connector 3, the connecting nut 43c is first put on the second screw 42c. The positions of the first screw 41c and the second screw 42c in the threaded holes are adjusted so that the screw head of the first screw 41c and the screw head of the second screw 42c are in contact or have a certain gap. When the connecting nut 43c and the first screw 41c are pre-tightened, they can provide a certain tension to the longitudinal rib 211 connected to the connector 3.

[0052] Example 4

[0053] See Figure 8In this embodiment, the difference from the above embodiment is that: when both ends of the reinforcing bar support frame 2 extend beyond both ends of the precast slab 1, the connector 3 is an enlarged head, and the connecting assembly 4 includes a nut 41d and a lock nut sleeve 42d. The nut 41d is sleeved on the outer wall of the enlarged head, and the outer wall of the nut 41d has external threads. The inner wall of the nut 41d is connected to the enlarged head. The lock nut sleeve 42d is sleeved on the connector 3 corresponding to the nut 41d on the adjacent precast component. The inner wall of the lock nut sleeve 42d has internal threads that mate with the outer wall of the nut 41d. The lock nut sleeve 42d and the nut 41d are threadedly connected to achieve the connection of adjacent precast components. After the lock nut sleeve 42d and the nut 41d are locked together for a certain distance, the lock nut sleeve 42d, the enlarged head, and the nut 41d form a connection, which can apply a certain tensile force to the longitudinal reinforcement 211.

[0054] See Figure 9 In this embodiment, preferably, at least one of the enlarged head of the connecting nut 41d and the enlarged head of the connecting lock nut sleeve 42d has a threaded hole at its end, and a preload screw 9 is installed at the threaded hole. By setting the preload screw 9, compression can be formed between the two enlarged heads. The cooperation of the preload screw 9 and the connecting assembly 4 can apply a certain tensile force to the longitudinal rib 211, while also preventing the connecting assembly 4 from loosening.

[0055] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A precast member with a connection, characterized by include: Precast slabs; The steel reinforcement support frame is embedded inside the precast slab; The connector is connected to both ends of the steel bar support frame, and the connectors at both ends of the steel bar support frame extend to the end face of the precast slab or extend beyond both ends of the precast slab. The connecting components enable the connection of the connectors at the ends of two corresponding steel reinforcement support frames in adjacent precast components.

2. A precast member with a connection head as claimed in claim 1, characterized in that The steel reinforcement support frame includes mesh belts and horizontal bars, and multiple mesh belts and horizontal bars are provided. The multiple mesh belts are spaced apart and connected to each other through multiple horizontal bars. The connector is located at the end of the mesh belt.

3. A precast member with a connection head as claimed in claim 2, wherein, The mesh belt includes longitudinal ribs and web ribs. There are two longitudinal ribs arranged in parallel. The web ribs are arranged between the two longitudinal ribs and are fixedly connected to each other. The connector is located at the end of the longitudinal rib.

4. The precast member with a connection head of claim 1, wherein, The ends of the connectors are provided with threaded holes. The connecting assembly includes a screw, a lock nut, and a threaded sleeve. The screw is engaged with the threaded hole at the end of the connector. The lock nut is sleeved on the screw shank portion. The screw head portion can limit the lock nut. The outer wall of the lock nut is provided with threads. The threaded sleeve is used to connect the lock nuts on two corresponding connectors in adjacent prefabricated components to realize the connection of adjacent prefabricated components.

5. The precast member with a connection head of claim 1, wherein, Each end of the connector is provided with a threaded hole. The connecting assembly includes a connecting screw, a split sleeve, and a retaining spring clamp. The connecting screw is engaged with the threaded hole at the end of the connector. The inner wall of the split sleeve has a limiting boss that axially limits the screw head portion of the connecting screw. The retaining spring clamp is provided on the split sleeve to connect the connecting screws on two corresponding connectors in adjacent prefabricated components, thereby realizing the connection of adjacent prefabricated components.

6. The precast member with a connection head of claim 1, wherein, The ends of the connectors are provided with threaded holes. The connecting assembly includes a first screw, a second screw, and a connecting nut. The first screw and the second screw respectively engage with the threaded holes on the corresponding two connectors in adjacent prefabricated components. The outer wall of the screw head of the first screw is provided with external threads. The connecting nut is sleeved on the second screw. The screw head of the second screw can axially limit the connecting nut. The connecting nut is connected to the first screw to realize the connection of adjacent prefabricated components.

7. The precast member with a connection head of claim 1, wherein, When both ends of the steel reinforcement support extend beyond the two ends of the precast slab, the connector is an enlarged head. The connecting assembly includes a nut and a lock nut sleeve. The nut is fitted onto the outer wall of the enlarged head and has an external thread. The inner wall of the nut is connected to the enlarged head. The lock nut sleeve is fitted onto the connector corresponding to the nut on the adjacent precast component. The inner wall of the lock nut sleeve has an internal thread that mates with the outer wall of the nut. The lock nut sleeve is threadedly connected to the nut to achieve the connection of adjacent precast components.

8. A precast member with a connection as defined in claim 7, wherein At least one of the enlarged head connecting the nut and the enlarged head connecting the lock nut sleeve is provided with a threaded hole at the end thereof, and a pre-tightening screw is installed at the threaded hole.

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