An assembled prefabricated laminated slab

Abstract

The utility model discloses a kind of prefabricated composite board of assembly type, including combination cover and combination block, installation cavity with top open is opened in the combination cover, the combination block is embedded in the installation cavity horizontally, and the open place of the installation cavity top is also provided with cover plate, the cover plate is fixedly connected with combination cover.The prefabricated composite board of assembly type provided by the utility model, combination cover top is outwardly extended and enlarged open setting, combination block is conveniently entered into combination cover, combination block is positioned and installed using limiting block simultaneously, adjacent combination cover is aligned and locked using fixed connection mechanism, while the stability of prefabricated composite board when using after molding is improved, pouring work is facilitated;Combination cover is provided with installation groove communicated with installation cavity and plugging block used in cooperation with installation groove, when pouring, fluid material can flow through installation groove, and the stability between adjacent prefabricated composite board can be significantly improved after fluid material molding.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated composite slab technology, specifically to an assembled prefabricated composite slab. Background Technology

[0002] Precast composite slabs are one of the core components commonly used in precast concrete structures. They consist of a precast base slab in the factory and a composite layer cast on site. They combine the advantages of industrialized production and stable quality of precast components with the overall good performance and seismic resistance of cast-in-place structures. They are widely used in floor slab projects of residential buildings, office buildings, shopping malls and other buildings.

[0003] Existing prefabricated composite slabs are difficult to assemble properly during use, leading to potential misalignment and displacement during placement. Chinese Utility Model Patent (Application No. 202420291398.8) discloses an assembled prefabricated composite slab, comprising a prefabricated composite slab body, a combination block fixedly mounted on one side of the body, and a combination sleeve fixedly mounted on the other side. In use, the combination block is inserted into the combination sleeve. Under the action of a spring, a limiting block is pushed into a limiting hole. Rotating the first threaded rod moves the support plate, allowing multiple fixing blocks to be inserted into fixing holes. As the combination block is inserted into the combination sleeve, an insert plate is inserted into the fixing sleeve. Rotating the second threaded rod lowers the connecting plate, allowing the connecting block to be inserted into the connecting hole. The mounting blocks are then rotated sequentially to insert into the mounting groove. Finally, bolts connect the sealing plate to the connecting box, assembling the two prefabricated composite slab bodies and effectively preventing misalignment.

[0004] However, in the use of the aforementioned precast composite slabs, the connecting sleeves are fixed, while the connecting blocks have a certain weight. This can lead to situations where the connecting blocks cannot smoothly fit into the connecting sleeves, hindering the installation and use of the precast composite slabs. Furthermore, because the connecting blocks are connected by connecting sleeves, during the pouring process, the flowable material cannot effectively penetrate the gaps between the blocks, affecting the adhesion between them and consequently impacting the structural stability of the slab. This ultimately reduces the overall stability of the floor slab composed of the connecting blocks. Utility Model Content

[0005] To address the aforementioned issues, an assembled precast composite slab is provided. The top of the assemblies features an outwardly extended and enlarged opening to facilitate the entry of the assemblies into the assemblies. Limiting blocks are used to restrict the installation of the assemblies, and a fixed connection mechanism aligns and locks adjacent assemblies. This facilitates the pouring process while improving the stability of the precast composite slab during use. The assemblies are equipped with an installation groove communicating with the installation cavity and a sealing block that works in conjunction with the installation groove. During pouring, fluid material flows through the installation groove, and after the fluid material solidifies, it significantly improves the stability between adjacent precast composite slabs.

[0006] To address the existing technical problems, this utility model provides an assembled prefabricated composite slab, including a combination sleeve and a combination block. The combination sleeve has an open-top mounting cavity, the combination block is horizontally embedded in the mounting cavity, and a cover plate is provided at the open top of the mounting cavity. The cover plate is fixedly connected to the combination sleeve. The mounting cavity is divided into an embedding part that is vertically arranged and at the same height as the assembly block, and a guide part that is located at the top of the embedding part and opens obliquely to the outside. The guide portion is provided with a limiting block for abutting and limiting the assembly block, and the guide portion is also provided with a groove for cooperating with the limiting block. The top of the groove and the side facing the assembly block are open. It also includes a fixing connection mechanism for fixing adjacent combination sleeves, and a sealing block used in conjunction with the combination sleeves.

[0007] Preferably, the limiting block has a horizontally arranged elastic pin extending to both sides, and the guide part also has a pin groove that cooperates with the elastic pin, and one side of the pin groove is connected to the groove.

[0008] Preferably, the assembly sleeve has horizontally arranged mounting grooves on all four sides that communicate with the mounting cavity, and the fixing connection mechanism and the sealing block are both disposed in the mounting grooves.

[0009] Preferably, the fixed connection mechanism includes a scissor arm and a folding arm for pulling the scissor arm to move. The folding arm is also provided with a plug-in block in the middle. The plug-in block is symmetrically provided with elastic elements with the vertical plane that bisects it as the plane of symmetry.

[0010] Preferably, the elastic element consists of a connecting spring and a wedge block, with the two ends of the connecting spring fixedly connected to the inner wall of the plug block and the end of the wedge block, respectively, and the end of the scissor arm extending horizontally to form multiple clamping portions.

[0011] Preferably, the folding arm is provided with pins at both its end and middle, and the end and middle of the folding arm are respectively hinged to the scissor arm and the plug block via the pins.

[0012] Preferably, the combined sleeve is further provided with a clamping groove for use with the clamping part, a plugging groove for use with the plugging block, and a positioning groove for use with the elastic element, and the two ends of the sealing block extend horizontally to connect with the plugging groove at the adjacent location.

[0013] Preferably, the clamping groove, the insertion groove, and the positioning groove are symmetrically opened on both sides of the mounting groove. The end of the positioning groove is connected to the insertion groove on the adjacent side. The ends of the clamping groove and the insertion groove are connected to the mounting groove on the adjacent side. Furthermore, one side of the clamping groove is connected to the mounting cavity opened inside the combined sleeve.

[0014] The advantages of this utility model compared to the prior art are: 1. To facilitate the connection between the combination sleeve and the combination block, the combination sleeve is an open design with a large opening at the top and a gradually narrowing bottom, which makes it easy for the combination block to enter the combination sleeve. At the same time, a limiting block is used to limit the installation of the combination block, which facilitates subsequent operations on the combination block.

[0015] 2. The assembly sleeve is equipped with an installation groove that communicates with the installation cavity and a sealing block that works with the installation groove. When the fluid material is poured, the fluid material will flow through the installation groove. After the fluid material has settled and formed, the stability between adjacent precast composite slabs can be significantly improved.

[0016] 3. At the same time, a fixed connection mechanism is set up to align and lock adjacent combination sleeves, further strengthening the stability of the precast composite slab during use after casting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a three-dimensional structure of an assembled prefabricated composite slab.

[0018] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure of an assembled prefabricated composite slab.

[0019] Figure 3 This is a schematic diagram of the connection structure between the combined sleeve and the combined block of an assembled prefabricated composite slab.

[0020] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of a limiting block for an assembled prefabricated composite slab.

[0021] Figure 5 This is a schematic diagram of a modular prefabricated composite slab structure.

[0022] Figure 6 This is a three-dimensional structural diagram of a combination sleeve and fixed connection mechanism for an assembled prefabricated composite slab.

[0023] Figure 7This is a schematic diagram of the three-dimensional cross-sectional structure of a combination sleeve and fixed connection mechanism for an assembled prefabricated composite slab.

[0024] Figure 8 This is a three-dimensional structural diagram of a fixed connection mechanism for an assembled prefabricated composite slab.

[0025] Figure 9 This is a schematic diagram of the three-dimensional structure of a sealing block for an assembled prefabricated composite slab.

[0026] The numbers in the diagram are: 1. Combination sleeve; 2. Combination block; 3. Cover plate; 4. Limiting block; 4a. Elastic pin; 5. Sealing block; 6. Scissor arm; 7. Folding arm; 7a. Insertion block; 7a1. Elastic element. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] See Figure 1 and Figure 2 As shown, an assembled prefabricated composite slab includes a combination sleeve 1 and a combination block 2. The combination sleeve 1 has an open-top mounting cavity. The combination block 2 is horizontally embedded in the mounting cavity. A cover plate 3 is also provided at the open top of the mounting cavity. The cover plate 3 is fixedly connected to the combination sleeve 1. The mounting cavity is divided into an embedding part that is vertically arranged at the same height as the assembly block 2, and a guide part that is located at the top of the embedding part and opens obliquely to the outside.

[0029] It should be noted that after assembling the adjacent combination sleeves 1, push the combination block 2 into the embedding part through the guide part until the combination block 2 is horizontal with the bottom of the installation cavity. Then, pour the fluid material into the installation cavity. After the fluid material fully fills the installation cavity, use the locking bolts to lock the cover plate to the top of the combination sleeve 1 and wait for the fluid material to settle and solidify.

[0030] See Figure 2 , Figure 3 , Figure 5 , Figure 8 and Figure 9 As shown, the guide portion is provided with a limiting block 4 for abutting and limiting the assembly block 2, and the guide portion is also provided with a groove for cooperating with the limiting block 4. The top of the groove and the side facing the assembly block 2 are open. It should be noted that, in order to prevent the composite block 2 from bouncing or moving due to impact or vibration before pouring, after the composite block 2 enters the embedding part, the limiting block 4 is used to cooperate with the groove to limit the composite block 2 in the embedding part.

[0031] It also includes a fixing connection mechanism for fixing adjacent combination sleeves 1, and a sealing block 5 used in conjunction with combination sleeves 1.

[0032] See Figures 3-5 As shown, the limiting block 4 has a horizontally arranged elastic pin 4a extending to both sides, and the guide part also has a pin groove that cooperates with the elastic pin 4a, and one side of the pin groove is connected to the groove.

[0033] It should be noted that the installation of the limiting block 4 is accomplished by the engagement of the elastic pin 4a with the slot at the groove. When installing the limiting block 4, the operator presses the elastic pin 4a with their index finger and thumb, pushing it into the limiting block 4, allowing the limiting block 4 to be smoothly placed into the groove. After the limiting block 4 and the groove are fully engaged, the elastic pin 4a will pop out and align with the slot, thus limiting the position of the limiting block 4 and also limiting the position of the combined block 2.

[0034] See Figure 3 , Figure 6 and Figure 7 As shown, the combination sleeve 1 has horizontally arranged mounting grooves on all four sides that communicate with the mounting cavity, and the fixed connection mechanism and the sealing block 5 are both arranged in the mounting grooves.

[0035] It should be noted that the installation groove is designed to facilitate the flow and adhesion of materials poured inside adjacent sleeves. The sealing block 5 is used to seal the installation groove at the edge after the sleeve 1 is installed through the fixed connection mechanism, so as to keep the material poured during the process inside the sleeve 1.

[0036] See Figure 7 , Figure 8 and Figure 9 As shown, the fixed connection mechanism includes a scissor arm 6 and a folding arm 7 that pulls the scissor arm 6 to move. The folding arm 7 is also provided with a plug block 7a in the middle. The plug block 7a is symmetrically provided with elastic elements 7a1 with the vertical plane that bisects it as the plane of symmetry.

[0037] The combined sleeve 1 is also provided with a clamping groove for use with the clamping part, a plugging groove for use with the plugging block 7a, and a positioning groove for use with the elastic member 7a1. The two ends of the sealing block 5 extend horizontally to connect with the plugging groove at the adjacent location.

[0038] It should be noted that when fixing adjacent combination sleeves 1, the scissor arms 6 are first unfolded and placed in the mounting slot. Then, the insertion block 7a is pulled to align with the insertion slot, and pushed until it abuts against the inner wall of the insertion slot. During this process, the elastic element 7a1 cooperates with the insertion slot to lock the insertion block 7a. This ensures that the combination sleeve 1 is firmly secured and difficult to loosen without the need for bolts. This improves the assembly effect between combination sleeves 1 and enhances the stability of the assembled combination sleeve 1.

[0039] See Figure 7 As shown, the elastic element 7a1 is composed of a connecting spring and a wedge block. The two ends of the connecting spring are fixedly connected to the inner wall of the plug block 7a and the end of the wedge block, respectively. The end of the scissor arm 6 extends horizontally to form multiple clamping parts.

[0040] It should be noted that during the docking process between the plug block 7a and the plug slot, the wedge block at the plug block 7a will be squeezed and pushed by the combination sleeve 1 first. After the plug block 7a abuts against the inner wall of the plug slot, it will pop out and plug into the positioning slot under the action of the connecting spring.

[0041] See Figure 7 As shown, the folding arm 7 is provided with pins at both its end and middle, and the end and middle of the folding arm 7 are respectively hinged to the scissor arm 6 and the plug block 7a through the pins.

[0042] It should be noted that during the docking process between the plug-in block 7a and the plug-in slot, the plug-in block 7a will also pull the scissor arm 6 to close via the folding arm 7, and dock with the clamping slot via the clamping part at the scissor arm 6, thereby forming a multi-directional limit on the combined sleeve 1. At this time, no matter which direction the combined sleeve 1 tends to move, it will be squeezed against the fixed connection mechanism, thereby making the fixed connection mechanism lock the combined sleeve 1 more firmly.

[0043] See Figure 5 As shown, the clamping groove, the insertion groove, and the positioning groove are symmetrically opened on both sides of the mounting groove. The end of the positioning groove is connected to the insertion groove on the adjacent side. The ends of the clamping groove and the insertion groove are connected to the mounting groove on the adjacent side. Furthermore, one side of the clamping groove is also connected to the mounting cavity opened inside the combined sleeve 1.

[0044] In summary, after the adjacent combination sleeves 1 are fixed by the fixed connection mechanism: When one side of the adjacent combination sleeve 1 has a tendency to move vertically upward and the other side has a tendency to move vertically downward, it will be unable to move due to the contact action between the plug block 7a and the scissor arm 6 and the plug slot and clamping slot.

[0045] When one side of the adjacent combination sleeve 1 moves horizontally upward and the other side moves horizontally downward, the horizontal surface of the wedge block will abut against the inner wall of the insertion slot, making it impossible for the adjacent combination sleeve 1 to move.

[0046] When the adjacent combination sleeve 1 moves horizontally to both sides, since the plug block 7a is locked in the plug slot by the elastic member 7a1, the scissor arm 6 will be driven by the folding arm 7 to firmly abut against the clamping slot, so that the combination sleeve 1 cannot move.

[0047] Therefore, the prefabricated composite slabs in this scheme not only have reserved channels for the smooth flow of casting materials, but also have a sturdy assembly structure, are easy to install, and have better stability during use.

[0048] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A prefabricated modular slab, comprising a combination sleeve (1) and a combination block (2), characterized in that, The assembly sleeve (1) has an open top mounting cavity, the assembly block (2) is horizontally embedded in the mounting cavity, and a cover plate (3) is provided at the open top of the mounting cavity. The cover plate (3) is fixedly connected to the assembly sleeve (1). The mounting cavity is divided into an embedding part that is vertically arranged at the same height as the assembly block (2), and a guide part that is located at the top of the embedding part and opens obliquely to the outside; The guide portion is provided with a limiting block (4) for abutting and limiting the assembly block (2), and the guide portion is also provided with a groove for cooperating with the limiting block (4). The top of the groove and the side facing the assembly block (2) are open. It also includes a fixed connection mechanism for fixing adjacent combination sleeves (1), and a sealing block (5) used in conjunction with the combination sleeves (1).

2. The assembled prefabricated composite slab according to claim 1, characterized in that, The limiting block (4) has a horizontally arranged elastic pin (4a) extending to both sides. The guide part also has a pin groove that cooperates with the elastic pin (4a), and one side of the pin groove is connected to the groove.

3. The assembled prefabricated composite slab according to claim 1, characterized in that, The assembly sleeve (1) has horizontally arranged mounting grooves on all four sides that communicate with the mounting cavity. The fixing connection mechanism and the sealing block (5) are both arranged in the mounting grooves.

4. A prefabricated composite slab according to claim 1 or 3, characterized in that, The fixed connection mechanism includes a scissor arm (6) and a folding arm (7) for pulling the scissor arm (6) to move. The folding arm (7) is also provided with a plug block (7a) in the middle. The plug block (7a) is symmetrically provided with elastic elements (7a1) with the vertical plane that bisects it as the plane of symmetry.

5. The assembled prefabricated composite slab according to claim 4, characterized in that, The elastic element (7a1) consists of a connecting spring and a wedge block. The two ends of the connecting spring are fixedly connected to the inner wall of the plug block (7a) and the end of the wedge block, respectively. The end of the scissor arm (6) extends horizontally to form multiple clamping parts.

6. The assembled prefabricated composite slab according to claim 4, characterized in that, The folding arm (7) is provided with pins at both ends and in the middle, and the ends and in the middle of the folding arm (7) are respectively hinged to the scissor arm (6) and the plug block (7a) via the pins.

7. The assembled prefabricated composite slab according to claim 4, characterized in that, The combined sleeve (1) is also provided with a clamping groove for use with the clamping part, a plugging groove for use with the plugging block (7a), and a positioning groove for use with the elastic element (7a1). The two ends of the sealing block (5) extend horizontally to connect with the plugging groove at the adjacent location.

8. The assembled prefabricated composite slab according to claim 7, characterized in that, The clamping groove, the insertion groove and the positioning groove are symmetrically opened on both sides of the mounting groove. The end of the positioning groove is connected to the insertion groove on the adjacent side. The ends of the clamping groove and the insertion groove are connected to the mounting groove on the adjacent side. Furthermore, one side of the clamping groove is connected to the mounting cavity opened in the combined sleeve (1).

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