A skeleton structure for precast lightweight concrete components and the precast lightweight concrete components.

Abstract

This invention relates to the field of lightweight concrete technology and discloses a skeleton structure for precast lightweight concrete components and the precast lightweight concrete components themselves. The skeleton structure includes a lightweight concrete slab body. Corner guards that do not protrude from the sidewalls of the lightweight concrete slab body are provided at the corners. Each corner guard has a mounting cavity, and a support block that protrudes from the top of the lightweight concrete slab body is vertically and movably connected to the upper end of the mounting cavity. A splicing assembly is provided at the end of the lightweight concrete slab body. This skeleton structure for precast lightweight concrete components and the precast lightweight concrete components themselves, through the corner guards, can protect the corners of the lightweight concrete slab body from impact damage. The support block, in conjunction with the splicing assembly and linkage components, can be simultaneously hidden during splicing and protruded when not splicing, thus preventing contact and compression of the lightweight concrete slab bodies during stacking, further improving the protective effect on the lightweight concrete slab bodies.

Description

Technical Field

[0001] This invention relates to the field of lightweight concrete technology, and more particularly to a skeleton structure for precast lightweight concrete components and the precast lightweight concrete components themselves. Background Technology

[0002] Precast lightweight concrete slabs are concrete components with low density, pre-cast in a factory environment. They are mainly used in non-load-bearing or secondary load-bearing parts of buildings, such as walls, floors, and partitions, to achieve rapid construction, reduce structural weight, and improve thermal insulation performance. To overcome the relatively low strength of lightweight concrete and meet the mechanical requirements during transportation, hoisting, and use, a reinforcing framework is usually embedded inside the concrete during production. This framework includes steel mesh, truss reinforcement, or small steel frames to significantly improve the overall bending and shear strength and stiffness of the slabs, ensuring they are not easily broken or deformed during handling and installation.

[0003] However, existing precast lightweight concrete slabs have some obvious defects. On the one hand, since their internal skeleton structure is usually arranged in the main plane area of ​​the slab, it is difficult to effectively extend and anchor to the edges or corners of the slab. This results in these parts lacking sufficient reinforcement support. During handling, hoisting, or on-site splicing and installation, the corners are easily damaged or chipped due to bumps and stress concentration, affecting the integrity of the components and the quality of installation. On the other hand, in order to save factory and construction site storage space, the finished precast lightweight concrete slabs are generally stored in multiple layers. In this state, the surfaces of adjacent slabs are in direct contact. Not only will the contact surfaces wear due to friction during handling or vibration, but more importantly, the static load generated by stacking will cause the lower slabs, especially the bottom slabs, to bear huge local pressure. Their relatively fragile edges or local areas are very easy to crack due to pressure, resulting in material waste and economic losses. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of poor protection effect. To this end, we propose a skeleton structure for precast lightweight concrete components and precast lightweight concrete components.

[0005] To achieve the above objectives, this application adopts the following technical solution: a precast lightweight concrete component, comprising a lightweight concrete slab body, wherein the corner of the lightweight concrete slab body is provided with a corner guard that does not protrude from the side wall of the lightweight concrete slab body, and the corner guard is provided with an installation cavity, wherein the upper end of the installation cavity is vertically and movably connected to a support block that can protrude from the top of the lightweight concrete slab body.

[0006] The end of the lightweight concrete slab body is provided with a splicing assembly. The splicing assembly includes a splicing groove provided on the side wall of the lightweight concrete slab body. A hidden groove is provided on the side of the lightweight concrete slab body opposite to the splicing groove. A splicing block that is inserted and matched with the splicing groove is movably provided inside the hidden groove. A driving assembly for driving the splicing block to move is provided in the hidden groove.

[0007] It also includes a linkage component, which includes a linkage arm movably disposed at one end of the mounting cavity and corresponding to the support block. One end of the linkage arm extends away from the support block and into the inner side of the splicing groove, while the other end of the linkage arm extends away from the support block and into the inner side of the hidden groove. One side wall of the splicing block is provided with a notch corresponding to the end of the linkage arm, and one end of the notch is a slope. A stop block corresponding to the linkage arm is provided on the inner side of one end of the mounting cavity. A first elastic element is provided between the inner wall of the linkage arm and the stop block. A guide component for guiding the displacement of the support block is provided on the end of the linkage arm near the support block.

[0008] Preferably, the guiding component includes an inclined guide groove disposed on the side wall of the linkage arm near the support block and in an inclined shape, a horizontal support groove disposed at the upper end of the inclined guide groove, and a guide block disposed on the lower side wall of the support block for movably guiding and connecting with the inclined guide groove and the horizontal support groove.

[0009] Preferably, the guiding component includes a support arm movably disposed at one end of the linkage arm near the support block, the other end of the support arm being movably connected to the bottom of the support block, and the support arm being inclined when the upper end of the support block protrudes from the top of the lightweight concrete slab body, and a blocking block for blocking the support arm is provided at one end of the bottom of the support block.

[0010] Preferably, the end of the linkage arm away from the support block is rotatably provided with a rotating component.

[0011] Preferably, the drive assembly includes a gear rotatably disposed in a hidden groove, a rack meshing with the gear is provided on one end sidewall of the splicing block, and a knob is provided on the gear extending to the top of the lightweight concrete slab body but not protruding from the lightweight concrete slab body.

[0012] Preferably, the rotating component is a roller or a ball bearing.

[0013] Preferably, the splicing block and the splicing groove are connected by a snap-fit ​​assembly. The snap-fit ​​assembly includes a locking groove disposed on one side of the splicing block, and a snap-fit ​​block is movably disposed on the inner side of one end of the inner cavity of the splicing groove. A second elastic element is disposed between the snap-fit ​​block and the inner wall of the splicing groove. The snap-fit ​​block is used to engage with the locking groove.

[0014] Preferably, the side of the locking block away from the splicing groove is provided with a guide post that is movably connected to the lightweight concrete slab body, and the end of the guide post away from the locking block is threaded with a screw or bolt that does not protrude from the lightweight concrete slab body.

[0015] Preferably, the corner of the lightweight concrete slab body is provided with a notch adapted to the corner protector, the corner protector is fixed to the notch, the inner wall of the notch is provided with a groove, and the side wall of the corner protector is provided with a protruding rib that engages with the groove.

[0016] This application also includes an embodiment, specifically a skeleton structure applied to a precast lightweight concrete component, characterized in that: the skeleton structure is a steel mesh, a truss reinforcement, or a steel frame.

[0017] The technical effects and advantages of this invention are as follows:

[0018] In this invention, the corner protectors can protect the corners of the lightweight concrete slab body, preventing damage from bumps and knocks. The support blocks, together with the splicing components and linkages, can be hidden during splicing to prevent affecting subsequent surface construction. When not splicing, they protrude, so that the lightweight concrete slab body will not come into contact or be squeezed when stacked, further improving the protection effect of the lightweight concrete slab body. The structure is simple and easy to use. Attached Figure Description

[0019] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0020] Figure 1 This is a structural diagram of the lightweight concrete slab body of the present invention when only one splicing groove and hidden groove are provided;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the structure at the other end of the foundation;

[0022] Figure 3 For the present invention Figure 1 A schematic diagram of the structure with two lightweight concrete slabs joined together on the foundation.

[0023] Figure 4 This is a schematic cross-sectional view of the connection between the two lightweight concrete slab bodies of the present invention.

[0024] Figure 5 This is a structural schematic diagram of the present invention in its disassembled state;

[0025] Figure 6 For the present invention Figure 5 A schematic diagram of the structure at the other end of the foundation;

[0026] Figure 7 This is a partial cross-sectional structural diagram of the splicing block of the present invention;

[0027] Figure 8 This is a cross-sectional structural diagram of the connection between the linkage arm and the corner guard of the present invention;

[0028] Figure 9 This is a schematic diagram of the structure of a second embodiment of the guiding component of the present invention;

[0029] Figure 10 This is a structural diagram of the linkage arm, support block, and corner protector of the present invention in a disassembled state.

[0030] Figure 11 This is a cross-sectional structural diagram of the splicing groove of the present invention;

[0031] Figure 12 This is a side view of the card block structure of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the lightweight concrete slab body of the present invention when a pair of splicing grooves and a pair of hidden grooves are provided;

[0033] Figure 14 For the present invention Figure 13 A schematic diagram of the structure in its assembled state.

[0034] Legend: 1. Lightweight concrete slab body; 2. Corner guard; 3. Support block; 4. Splicing block; 5. Knob; 6. Splicing groove; 7. Hidden groove; 8. Linkage arm; 9. Gear; 10. Protruding rib; 11. Notch; 12. Rack; 13. Locking groove; 14. Notch; 15. Groove; 16. Rotating component; 17. Mounting cavity; 18. Inclined guide groove; 19. Flat support groove; 20. Guide block; 21. First elastic element; 22. Stop block; 23. Second elastic element; 24. Support arm; 25. Blocking block; 26. Locking block; 27. Guide post. Detailed Implementation

[0035] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0036] Reference Figures 1-7 , Figures 11-14As shown, a precast lightweight concrete component includes a lightweight concrete slab body 1. A splicing assembly is provided at the end of the lightweight concrete slab body 1. The splicing assembly includes a splicing groove 6 disposed on the side wall of the lightweight concrete slab body 1. A hidden groove 7 is provided on the side of the lightweight concrete slab body 1 opposite to the splicing groove 6. Only one hidden groove 7 and one splicing block 4 can be provided on one lightweight concrete slab body 1, allowing for the end-to-end splicing of multiple lightweight concrete slab bodies 1. Alternatively, two hidden grooves 7 and two splicing blocks 4 can be provided on one lightweight concrete slab body 1. The joint groove 6 has two adjacent splicing grooves 6 and two adjacent hidden grooves 7, which can realize the rectangular array splicing of multiple lightweight concrete slab bodies 1. The inner side of the hidden groove 7 is movably provided with splicing blocks 4 that are inserted and cooperate with the splicing groove 6. The hidden groove 7 is provided with a driving component for driving the displacement of the splicing blocks 4. In a preferred embodiment, the driving component includes a gear 9 rotatably disposed in the hidden groove 7. One end sidewall of the splicing block 4 is provided with a rack 12 that meshes with the gear 9. The gear 9 is provided with a part that extends to the top of the lightweight concrete slab body 1 but does not protrude. The lightweight concrete slab body 1 has a knob 5, which is controlled by a wrench for rotation. To ensure stability at the insertion point of the splicing block 4 and the splicing groove 6, the splicing block 4 and the splicing groove 6 are connected by a snap-fit ​​assembly. The snap-fit ​​assembly includes a locking groove 13 on one side of the splicing block 4, and a locking block 26 movably disposed on the inner side of one end of the inner cavity of the splicing groove 6. One side of the locking block 26 is inclined, and a second elastic element 23, preferably a spring, is disposed between the locking block 26 and the inner wall of the splicing groove 6. The locking block 26 is used to engage with the locking groove 13 for easy disassembly. A guide post 27 is provided on the side of the locking block 26 away from the splicing groove 6, which is movably connected to the lightweight concrete slab body 1. The end of the guide post 27 away from the locking block 26 is threaded with a screw or bolt that does not protrude from the lightweight concrete slab body 1. This setting allows the screw or bolt at one end of the guide post 27 to be screwed into the lightweight concrete slab body 1 by using a tool when it is necessary to disassemble the lightweight concrete slab body 1. Then, the screw or bolt can be pulled to drive the guide post 27 and the locking block 26 to move, thereby causing one end of the locking block 26 to separate from the locking groove 13.

[0037] Furthermore, such as Figures 1-10As shown, the corner of the lightweight concrete slab body 1 is provided with a corner guard 2 that does not protrude from the side wall of the lightweight concrete slab body 1. The corner guard 2 is "L" shaped. Specifically, the corner of the lightweight concrete slab body 1 is provided with a notch 14 that matches the corner guard 2. The corner guard 2 is fixed in the notch 14. The inner wall of the notch 14 is provided with a groove 15. The side wall of the corner guard 2 is provided with a protruding rib 10 that engages with the groove 15, which facilitates the quick installation and positioning of the corner guard 2 and the notch 14 and prevents relative displacement between the corner guard 2 and the notch 14. The corner guard 2 is provided with an installation... Cavity 17, the upper end of which is vertically and movably connected to a support block 3 that protrudes from the top of the lightweight concrete slab body 1, and the protruding part of the support block 3 is a detachable structure, which can be disassembled by means of bolts or screws. In order to realize the displacement of the support block 3, a linkage component is also provided. The linkage component includes a linkage arm 8 movably disposed at one end of the mounting cavity 17 and corresponding to the support block 3, and one pair of linkage arms 8 at one end extends away from the support block 3 to the inner side of the splicing groove 6, and the other pair of linkage arms 8 at the other end extends away from the support block 3 to the hidden side. Inside the recessed groove 7, it should be noted that one end of each of the two pairs of linkage arms 8 on a lightweight concrete slab body 1 extends only into one set of oppositely arranged splicing grooves 6 and hidden grooves 7 on the lightweight concrete slab body 1. For the remaining set of oppositely arranged splicing grooves 6 and hidden grooves 7 on the array-splicable lightweight concrete slab body 1, no linkage arms 8 are provided. One end of the splicing block 4 has a notch 11 corresponding to the end of the linkage arm 8. One end of the notch 11 is a slope. Initially, the end of one of the linkage arms 8 is exactly aligned with the notch 11. Correspondingly, the slope can push the linkage arm 8 to move, and in order to reduce friction, a rotating part 16 is rotatably provided at the end of the linkage arm 8 away from the support block 3. The rotating part 16 is preferably a roller or ball. A stop block 22 corresponding to the linkage arm 8 is provided on the inner side of one end of the mounting cavity 17. A first elastic element 21 is provided between the inner wall of the linkage arm 8 and the stop block 22. The first elastic element 21 is preferably a spring, which facilitates the automatic pop-out of the support block 3 in the non-spliced ​​state. A guide component for guiding the displacement of the support block 3 is provided at the end of the linkage arm 8 near the support block 3.

[0038] like Figure 8 , Figure 10 As shown, in the first embodiment of the guiding component, the guiding component includes an inclined guide groove 18 disposed on the side wall of the linkage arm 8 near the support block 3 and in an inclined shape. A horizontal support groove 19 is provided at the upper end of the inclined guide groove 18. A guide block 20 is provided at the lower end of the support block 3 for movably guiding and connecting with the inclined guide groove 18 and the horizontal support groove 19. When the support block 3 is in the protruding state, the guide block 20 is located inside the horizontal support groove 19.

[0039] like Figure 9As shown, in the second embodiment of the guiding component, the guiding component includes a support arm 24 movably disposed at one end of the linkage arm 8 near the support block 3. The other end of the support arm 24 is movably connected to the bottom of the support block 3. When the upper end of the support block 3 protrudes from the top of the lightweight concrete slab body 1, the support arm 24 is inclined. A blocking block 25 is provided at one end of the bottom of the support block 3 to block the support arm 24. The blocking block 25 can restrict the support arm 24 to tilt significantly to one side, and it cannot tilt significantly when supporting the support block 3.

[0040] In addition, this application also relates to an embodiment, specifically a skeleton structure for the above-mentioned precast lightweight concrete component. The skeleton structure is disposed inside the lightweight concrete slab body 1, and the skeleton structure is a steel mesh, truss reinforcement, or steel frame, etc. The skeleton structure adopts conventional technology and will not be described in detail.

[0041] Working principle: In the initial state, the splicing block 4 is hidden and one end of the support block 3 is protruding. When stacking, the protruding support block 3 supports the lightweight concrete slab body 1. The support block 3 transmits the force to the linkage arm 8, and the linkage arm 8 transmits it to the corner guard 2. The lightweight concrete slab body 1 will not be stressed.

[0042] There are two splicing methods. One method involves splicing multiple lightweight concrete slab bodies 1 end to end. In this case, only one splicing groove 6 and one splicing block 4 are provided on the lightweight concrete slab body 1, and the two are positioned opposite each other. During splicing, the splicing block 4 at one end of one lightweight concrete slab body 1 is aligned with the splicing groove 6 at one end of another lightweight concrete slab body 1. The knob 5 corresponding to the splicing block 4 is turned. The knob 5 drives the splicing block 4 to move through the cooperation of the gear 9 and the rack 12. Initially, one end of the linkage arm 8 corresponding to the hidden groove 7 is exactly aligned with the notch 11. Therefore, when the splicing block 4 moves, it can push the rotating part 16 at one end of the linkage arm 8 through the slope of the notch 11. In turn, the rotating part 16 drives the linkage arm 8 to move. The first elastic element 21 of the linkage arm 8 is compressed during the movement of the linkage arm 8. One end of the linkage arm 8 is guided by the guide component. The protruding support block 3 is guided and retracted into the installation cavity 17. When one end of the splicing block 4 enters the splicing groove 6, the two support blocks 3 at the end of the other lightweight concrete slab body 1 can also be retracted through the slope, the linkage arm 8, and the guide component. Moreover, when one end of the splicing block 4 enters the splicing groove 6, it will squeeze the locking block 26. The locking block 26 compresses the second elastic element 23 and hides it. When the locking block 26 matches the locking groove 13, the locking block 26 can automatically spring into the locking groove 13 under the restoring force of the second elastic element 23 to achieve locking, thereby realizing the splicing of the lightweight concrete slab body 1. The same principle applies when splicing multiple lightweight concrete slab bodies 1 end to end. Since the support block 3 located on the outer periphery is in a protruding state after splicing, there is no splicing block 4 and splicing groove 6 to cooperate to hide it. Therefore, the protruding part at the end of the outermost support block 3 needs to be removed in the end.

[0043] Another splicing method is a rectangular array splicing. In this case, the lightweight concrete slab body 1 is provided with a pair of splicing blocks 4 and a pair of splicing grooves 6. The pair of splicing blocks 4 are set on two adjacent sides, and the pair of splicing grooves 6 are set on two other adjacent sides. The splicing is similar to the first and last splicing method. The splicing blocks 4 are inserted into the splicing grooves 6 by turning the knob 5. This will not be elaborated on here. Finally, the protruding part at the end of the outer support block 3 can be removed in the same way. It should be noted that in this splicing state, the position of the linkage arm 8 is the same as that in the first and last splicing state. It is only set on both sides of one set of opposite splicing grooves 6 and hidden grooves 7. The remaining set of splicing grooves 6 and hidden grooves 7 does not participate in controlling the displacement of the support block 3.

[0044] In addition, there are two embodiments of the guide component. In the first embodiment, when in use, the guide block 20 at the lower end of the support block 3 in the non-spliced ​​state is located in the flat support groove 19. The support block 3 is supported by the cooperation of the guide block 20 and the flat support groove 19. When the linkage arm 8 is pushed by the slope at one end of the notch 11, the guide block 20 goes down the slope along the inclined guide groove 18, so that the support block 3 is hidden.

[0045] In the second embodiment, when in use, the lower support arm 24 of the support block 3 is slightly tilted to one side in the non-spliced ​​state, and the upper side is blocked by the blocking block 25. At this time, the support block 3 is supported by the support arm 24. When the slope in the recess 11 pushes the linkage arm 8 to move, the support arm 24 first becomes vertical, and then tilts to the other side, gradually disappearing from the support block 3.

[0046] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A precast lightweight concrete component, characterized in that, The device includes a lightweight concrete slab body, and corner guards that do not protrude from the side wall of the lightweight concrete slab body are provided at the corners. An installation cavity is provided on the corner guards, and a support block that can protrude from the top of the lightweight concrete slab body is vertically and movably connected to the upper end of the installation cavity. The end of the lightweight concrete slab body is provided with a splicing assembly. The splicing assembly includes a splicing groove provided on the side wall of the lightweight concrete slab body. A hidden groove is provided on the side of the lightweight concrete slab body opposite to the splicing groove. A splicing block that is inserted and matched with the splicing groove is movably provided inside the hidden groove. A driving assembly for driving the splicing block to move is provided in the hidden groove. It also includes a linkage component, which includes a linkage arm movably disposed at one end of the mounting cavity and corresponding to the support block. One end of the linkage arm extends away from the support block and into the inner side of the splicing groove, while the other end of the linkage arm extends away from the support block and into the inner side of the hidden groove. One side wall of the splicing block is provided with a notch corresponding to the end of the linkage arm, and one end of the notch is a slope. A stop block corresponding to the linkage arm is provided on the inner side of one end of the mounting cavity. A first elastic element is provided between the inner wall of the linkage arm and the stop block. A guide component for guiding the displacement of the support block is provided on the end of the linkage arm near the support block. The guiding component includes an inclined guide groove disposed on the side wall of the linkage arm near the support block and in an inclined shape. A horizontal support groove is provided at the upper end of the inclined guide groove, and a guide block is provided at the lower end of the support block for movably guiding and connecting with the inclined guide groove and the horizontal support groove. The guiding component includes a support arm movably disposed at one end of the linkage arm near the support block. The other end of the support arm is movably connected to the bottom of the support block. When the upper end of the support block protrudes from the top of the lightweight concrete slab body, the support arm is inclined. A blocking block for blocking the support arm is provided at one end of the bottom of the support block.

2. The precast lightweight concrete component according to claim 1, characterized in that: The end of the linkage arm furthest from the support block is rotatably equipped with a rotating component.

3. The precast lightweight concrete component according to claim 1, characterized in that: The drive assembly includes a gear rotatably disposed in a hidden groove, and a rack that meshes with the gear is provided on one end sidewall of the splicing block. The gear is provided with a knob that extends to the top of the lightweight concrete slab body but does not protrude from the lightweight concrete slab body.

4. The precast lightweight concrete component according to claim 2, characterized in that: The rotating component is a roller or a ball bearing.

5. The precast lightweight concrete component according to claim 1, characterized in that: The splicing block and the splicing groove are connected by a snap-fit ​​assembly. The snap-fit ​​assembly includes a locking groove on one side of the splicing block. A snap-fit ​​block is movably disposed on the inner side of one end of the inner cavity of the splicing groove. A second elastic element is disposed between the snap-fit ​​block and the inner wall of the splicing groove. The snap-fit ​​block is used to engage with the locking groove.

6. The precast lightweight concrete component according to claim 5, characterized in that: The side of the locking block away from the splicing groove is provided with a guide post that is movably connected to the lightweight concrete slab body, and the end of the guide post away from the locking block is threaded with a screw or bolt that does not protrude from the lightweight concrete slab body.

7. The precast lightweight concrete component according to claim 1, characterized in that: The corner of the lightweight concrete slab body is provided with a notch adapted to the corner protector. The corner protector is fixed to the notch. The inner wall of the notch is provided with a groove. The side wall of the corner protector is provided with a protruding rib that is inserted into the groove.

8. A skeleton structure applied to the precast lightweight concrete member according to any one of claims 1-7, characterized in that: The skeleton structure is a steel mesh, a truss reinforcement, or a steel frame.

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