Ppvc space module suitable for hoisting

Abstract

The utility model belongs to the technical field of PPVC modular construction, and particularly relates to a ppvc space module suitable for hoisting, which comprises a module body with a hexahedron structure, an inverted quadrangular frustum pyramid-shaped guide groove is arranged at the top end of the module body, an inverted quadrangular frustum pyramid-shaped guide block is arranged at the bottom end of the module body, and the guide groove is matched with the guide block for use. Sleeves with internal threads are further embedded in the four corners of the top end of the module body respectively and provided with screws, connecting rings are arranged at the top ends of the screws, the four connecting rings are used for being connected with the bottom end of a steel wire rope of a crane, and the module body is provided with a low-gravity-center structure. The characteristics that the density of the alkali-activated concrete is larger than that of common concrete but the structural strength is high are utilized, and the application proportion of the alkali-activated concrete in different sections is reasonably configured, so that the gravity center of the PPVC space module can be lowered, the PPVC space module can be more easily kept in a stable posture during hoisting, the hoisting difficulty is lowered, and the hoisting efficiency is improved. And by arranging a guide block and a guide groove, the hoisting convenience is further improved.

Description

Technical Field

[0001] This invention belongs to the field of PPVC modular building technology, specifically relating to a PPVC space module suitable for hoisting. Background Technology

[0002] PPVC space modules are cubic box structures, including four walls, a top plate, and a bottom plate. Several PPVC space modules can be assembled into multi-story buildings, high-rise buildings, or building complexes.

[0003] PPVC space modules require hoisting to assemble into complete multi-story, high-rise, or building complexes. Therefore, the ease of hoisting is crucial to construction efficiency. Traditional PPVC space modules have side walls made of uniformly mass ordinary reinforced concrete, resulting in a high center of gravity and instability during hoisting, making installation difficult. Furthermore, the lack of easily aligning guide mechanisms when connecting adjacent PPVC space modules further reduces hoisting efficiency. Utility Model Content

[0004] This invention discloses a PPVC space module suitable for hoisting, aiming to solve the following problems existing in the prior art: the side walls of traditional PPVC space modules are made of ordinary reinforced concrete structures of uniform mass, resulting in a high center of gravity and instability during hoisting, leading to greater hoisting difficulties. Furthermore, there is a lack of easily aligning guiding mechanisms when connecting adjacent PPVC space modules, resulting in low hoisting efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A PPVC space module suitable for hoisting includes a hexahedral module body. The top of the module body is provided with an inverted frustum-shaped guide groove and the bottom is provided with an inverted frustum-shaped guide block. The guide groove and the guide block are used in conjunction. At the four corners of the top of the module body, there are sleeves with internal threads. The sleeves are equipped with screws. The top of the screws is provided with connecting rings. The four connecting rings are used to connect to the bottom of the wire rope of the hoist. The module body has a low center of gravity structure.

[0007] Preferably, the height of the guide groove is greater than the height of the guide block, and the bottom plate of the module body is provided with a casting hole that penetrates the bottom end of the guide block.

[0008] Preferably, the low center of gravity structure refers to the following: the four side walls of the module body are non-uniform mass structures with a density that gradually decreases from bottom to top; the center of gravity of the module body is lower than that of a conventional PPVC space module; and the four side walls of a conventional PPVC space module are uniform mass structures.

[0009] Preferably, the four side walls of the module body are provided with several segments from bottom to top, and the density of the segments decreases from bottom to top.

[0010] Preferably, the bottom section is formed by casting alkali-activated concrete and a reinforcing cage, while the top section is formed by casting ordinary concrete and a reinforcing cage. The density of the alkali-activated concrete is greater than that of the ordinary concrete.

[0011] Preferably, the segment between the bottommost segment and the topmost segment is formed by casting a steel cage using a mixture of alkali-activated concrete and ordinary concrete, with the proportion of alkali-activated concrete decreasing sequentially from bottom to top.

[0012] Preferably, the steel cages of the four side walls are connected to each other to form a whole.

[0013] Preferably, a counterweight beam is provided at the bottom of the front side wall of the module body to balance the weight of the rear side wall of the module body.

[0014] Preferably, the left and right sidewalls of the module body have the same weight.

[0015] Preferably, the center of gravity of the module body is located on the vertical line of the center of the bottom support surface of the module body.

[0016] The advantages of this new type of PPVC space module suitable for hoisting are as follows:

[0017] This new type of concrete utilizes the fact that alkali-activated concrete has a higher density than ordinary concrete but higher structural strength. By rationally configuring the application ratio of alkali-activated concrete in different sections, the center of gravity of the PPVC space module can be lowered, making it easier to maintain a stable posture during hoisting and reducing the difficulty of hoisting. The convenience of hoisting is further improved by setting guide blocks and guide grooves. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of this novel invention.

[0019] Figure 2 This is a top view of the structure of this novel invention.

[0020] Figure 3 This is a schematic diagram of the rearview structure of this novel invention.

[0021] Figure 4 This is a schematic diagram of the novel structure viewed from below.

[0022] Figure 5 This is a schematic diagram of the low center of gravity structure of this novel invention.

[0023] Figure 6 A schematic diagram of the structure of this novel structure with a counterweight beam.

[0024] Figure 7 This is a schematic diagram of the center of gravity of a building structure constructed from several modular bodies.

[0025] 1. Module body; 2. Top plate; 3. Front door; 4. Front window; 5. Side window; 6. Segment; 601. Bottom segment; 602. Second segment; 603. Third segment; 604. Fourth segment; 605. Top segment; 7. Counterweight beam; 8. Bottom support surface; 9. Vertical line; 10. Building structure built from several module bodies; 11. Guide groove; 12. Sleeve; 13. Guide block. Detailed Implementation

[0026] The following description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0027] The following embodiments can be understood as a part of the local structure or method of the present invention, or as a combination of embodiments to explain the connotation of a larger range of structures or methods of the present invention.

[0028] Example 1

[0029] A type of PPVC space module suitable for hoisting, such as Figure 1-7 As shown, the module body 1 includes a hexahedral structure. The top of the module body is provided with an inverted quadrangular frustum guide groove 11 and the bottom is provided with an inverted quadrangular frustum guide block 13. The guide groove 11 and the guide block 13 are used in conjunction. At the four corners of the top of the module body, sleeves 12 with internal threads are also pre-embedded. The sleeves 12 are equipped with screws (a common structure, not shown in the figure). The top of the screw is provided with a connecting ring. The four connecting rings are used to connect to the bottom of the wire rope of the crane. The module body has a low center of gravity structure.

[0030] like Figure 1-4 As shown, the height of the guide groove 11 is greater than the height of the guide block 13, and the bottom plate of the module body 1 is provided with a casting hole that passes through the bottom end of the guide block 13 (a common structure, not shown in the figure).

[0031] In this embodiment, during hoisting, the sleeve is screwed to the screw rod, and the crane's wire rope is connected to the connecting ring. Since the module body has a low center of gravity structure, its posture in the air is relatively easy to maintain stability, thereby reducing the difficulty of hoisting. In addition, guide blocks and guide grooves are set up. When adjacent module bodies are docked, the guide blocks can easily enter the guide grooves. After docking, since the height of the guide groove 11 is greater than the height of the guide block 13, there is a certain space between the bottom end of the guide block and the bottom end of the guide groove. At this time, concrete grout is injected through the pouring hole to cast the upper and lower module bodies into an integral structure.

[0032] It should be noted that the guide block of the bottom module body cooperates with the guide groove on the pre-cast foundation plate, and the cooperation and casting method are the same as above.

[0033] Example 2

[0034] like Figure 1-7 As shown, the low center of gravity structure refers to the following: the four side walls of the module body 1 are non-uniform mass structures, and the density gradually decreases from bottom to top. The center of gravity of the module body 1 is lower than that of the conventional PPVC space module. The four side walls of the conventional PPVC space module are uniform mass structures.

[0035] In this embodiment, the four side walls of a conventional PPVC space module are of uniform mass, typically a reinforced concrete structure composed of ordinary concrete and a steel cage. While this structure has a relatively high center of gravity and meets structural stability requirements, there is room for further improvement. This novel design features four non-uniform mass structures for the module body 1, with density gradually decreasing from bottom to top. This lowers the center of gravity of the module body, thereby improving the stability and seismic performance of the PPVC space module.

[0036] Example 3

[0037] like Figure 1-7 As shown, the four side walls of the module body are provided with several segments 6 from bottom to top, and the density of the segments 6 decreases from bottom to top.

[0038] Example 4

[0039] like Figure 1-7 As shown, the bottom segment 601 is formed by casting alkali-activated concrete and a reinforcing cage, while the top segment 605 is formed by casting ordinary concrete and a reinforcing cage. The density of alkali-activated concrete is greater than that of ordinary concrete. The density of alkali-activated concrete is typically 3.1-3.6 g / cm³. 3 The density of ordinary concrete is typically between 2.3 and 2.5 g / cm³. 3 In between, alkali-activated concrete and ordinary concrete of the required density can be configured according to the needs of the project.

[0040] like Figure 1-7 As shown, the section between the bottommost segment 601 and the topmost segment 605 is formed by casting a reinforced cage using a mixture of alkali-activated concrete and ordinary concrete, with the proportion of alkali-activated concrete decreasing sequentially from bottom to top. Because alkali-activated concrete has a higher density but higher strength than ordinary concrete, the mixed use achieves a gradual decrease in the density (mass) of the sidewall from bottom to top. Considering the impact of reserved doors and windows, the segments can be determined using the same surface area method, i.e., the surface area of ​​each segment is set to be the same (excluding the portion reserved for doors and windows).

[0041] like Figure 1-7 As shown, the steel cages of the four side walls are connected to each other to form a whole. That is, the mass of the steel cages is evenly distributed, but they are connected as a whole structure. Only the ratio of ordinary concrete to alkali-activated concrete in the segmented pouring is controlled.

[0042] Example 5

[0043] like Figure 6 As shown, a counterweight beam 7 is provided at the bottom of the front side wall of the module body 1 to balance the weight of the rear side wall of the module body. Of course, the counterweight can also take other forms. Usually, the front side wall has reserved doors and windows, so its weight is lower than that of the rear side wall, and the center of gravity is adjusted by setting the counterweight beam.

[0044] like Figure 5 , 6 As shown, the left and right sidewalls of the module body 1 have the same weight.

[0045] Example 6

[0046] like Figure 1-7 As shown, the center of gravity of the module body 1 is located on the vertical line 9 at the center of the bottom support surface 8 of the module body. The building structure 10, constructed from several module bodies, is as follows... Figure 7 As shown, its center of gravity is also located on vertical line 9.

[0047] In this embodiment, since the center of gravity of the module body is located on the vertical line of the center of the bottom support surface of the module body, the stability of the module body's posture during hoisting is further ensured, enabling the guide groove and guide block to be easily connected.

[0048] The principle behind this novel low center of gravity structure for lifting is that a lower center of gravity makes an object easier to lift. This is because a low center of gravity means better stability and a lower risk of tipping over. In lifting operations, the position of the center of gravity has a significant impact on the balance and stability of an object. If the object's center of gravity is lower than the binding point, it is easier to maintain balance during lifting, reducing the risk of losing balance.

[0049] The method for constructing the PPVC space module involved in this invention is the method described in the patent document with application number CN202010680526.4 and titled "A Method for Casting PPVC Modules by External Mold".

Claims

1. A PPVC space module suitable for hoisting, characterized in that: The module body includes a hexahedral structure. The top of the module body is provided with an inverted quadrangular frustum guide groove and the bottom is provided with an inverted quadrangular frustum guide block. The guide groove and the guide block are used in conjunction. At the four corners of the top of the module body, there are sleeves with internal threads. The sleeves are equipped with screws. The top of the screws is provided with connecting rings. The four connecting rings are used to connect to the bottom of the wire rope of the crane. The module body has a low center of gravity structure.

2. The PPVC space module suitable for hoisting as described in claim 1, characterized in that: The height of the guide groove is greater than the height of the guide block, and the bottom plate of the module body is provided with a casting hole that passes through the bottom end of the guide block.

3. A PPVC space module suitable for hoisting as described in claim 2, characterized in that: The low center of gravity structure refers to the following: the four side walls of the module body are non-uniform mass structures with a density that gradually decreases from bottom to top; the center of gravity of the module body is lower than that of a conventional PPVC space module; and the four side walls of a conventional PPVC space module are uniform mass structures.

4. A PPVC space module suitable for hoisting as described in claim 2, characterized in that: The module body has four side walls with several segments arranged from bottom to top, and the density of the segments decreases from bottom to top.

5. A PPVC space module suitable for hoisting as described in claim 4, characterized in that: The bottom section is formed by casting alkali-activated concrete and a reinforcing cage, while the top section is formed by casting ordinary concrete and a reinforcing cage. The density of alkali-activated concrete is greater than that of ordinary concrete.

6. A PPVC space module suitable for hoisting as described in claim 5, characterized in that: The steel cages of the four side walls are connected to each other to form a whole.

7. A PPVC space module suitable for hoisting as described in claim 1, characterized in that: A counterweight beam is provided at the bottom of the front side wall of the module body to balance the weight of the rear side wall of the module body.

8. A PPVC space module suitable for hoisting as described in claim 1, characterized in that: The left and right sidewalls of the module body have the same weight.

9. A PPVC space module suitable for hoisting as described in claim 1, characterized in that: The center of gravity of the module body is located on the vertical line of the center of the bottom support surface of the module body.

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