Fabricated multifunctional combined building device

Abstract

The invention discloses an assembly type multifunctional combined building device which comprises a basic module base, a structure module frame, a connecting module plate, an edge covering module frame, an enclosure module plate, a roof module plate, a paving module plate and a drainage module groove. A folding assembly is arranged on the basic module base and used for folding and storing the paving module plate; the base module seat is further provided with a trigger unfolding assembly, the trigger unfolding assembly is used for unfolding the folded and stored paving module plate, the base module seat is provided with a flushing assembly, and the flushing assembly is used for flushing the paving module plate; according to the invention, when a rainwater sensor monitors that the weather is gradually clear, an electromagnetic valve is opened, and a water source stored in a water storage tank can be discharged from a drainage pipe and finally discharged from a plurality of branch pipes of the drainage pipe, so that the pavement module plate is washed, footprints and mud stains generated when pedestrians walk can be washed away, and convenience is brought to subsequent outdoor activities of residents; and resting on the paving module board.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a prefabricated multifunctional modular building device. Background Technology

[0002] With the acceleration of urban renewal, improving the quality of old residential communities has become a core issue in public welfare projects. Prefabricated building components, due to their advantages of convenient assembly and efficient construction, are widely used in the renovation of public spaces in these communities. These components need to simultaneously meet multiple requirements such as space utilization, convenient services, and environmental adaptation. They must not only solve the problems of insufficient public facilities and rigid spatial layout in old residential communities, but also adapt to complex outdoor environments, achieving a balance between functionality and practicality.

[0003] For example, the "Prefabricated Building Device" with patent number CN208748832U uses a mounting frame and side panels with interlocking blocks-slots and protrusions-grooves to eliminate the tediousness of large-area bolt installation and electric welding, shortening the assembly time. At the same time, it uses the roof's collection port, collection trough and water tank to form a rainwater collection component, realizing the initial storage of rainwater and improving the resource utilization rate to a certain extent. However, its rainwater collection system only completes the basic process of "collection-storage" and has no secondary utilization linkage design. The stored rainwater lacks a practical output channel, and excessive water storage may cause safety hazards. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a prefabricated multifunctional modular building device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated multifunctional modular building device includes a base module seat, a structural module frame, connecting module panels, an edge-sealing module frame, an enclosure module panel, a roof module panel, a paving module panel, and a drainage module channel. The base module seat is equipped with a folding component for folding and storing the paving module panels. The base module seat is also equipped with a trigger-to-unfold component for unfolding the folded and stored paving module panels. The base module seat is also equipped with a rinsing component for rinsing the paving module panels. The folding and storage assembly includes a slide, rollers, a first rotating shaft, a second rotating shaft, a connecting rod, a third rotating shaft, and a limiting and rotating mechanism. The limiting and rotating mechanism is used to limit the folding and storage movement of the paving module panel and to drive it to rotate and reset. The slide is set on both sides of the paving module panel, and the roller is set in the two slides. One end of the first rotating shaft is rotatably connected to the roller, and the other end is fixedly connected to the side wall of the structural module frame. The roller slides in the slide. The second rotating shaft is set on both sides of the paving module panel. One end of the connecting rod is rotatably connected to the second rotating shaft, and the other end is fixedly connected to the third rotating shaft.

[0006] Preferably, the limiting rotation mechanism includes a fourth rotating shaft, a spiral spring, a spring box, a first slider, a first telescopic rod, a first spring, a first slider box, a second slider, a second telescopic rod, a second spring, a second slider box, and a pressing block.

[0007] Preferably, the first telescopic rod is disposed inside the first slider box, the first slider is disposed at the telescopic end of the first telescopic rod, one end of the first spring is fixedly connected to the first slider, and the other end is fixedly connected to the base of the first telescopic rod, the second telescopic rod is disposed inside the second slider box, the second slider is fixedly connected to the telescopic end of the second telescopic rod, the pressing block is fixedly connected below the second slider, one end of the second spring is fixedly connected to the second slider, and the other end is fixedly connected to the base of the second telescopic rod, one end of the fourth rotating shaft is fixedly connected to the third rotating shaft, and the other end is fixedly connected to the spiral spring, the other end of the spiral spring is fixedly connected to the inner wall of the spring box, and the spring box is disposed on both sides of the structural module frame.

[0008] Preferably, the paving module plate has mounting grooves on both sides, the first slider box is disposed in the mounting groove, the structural module frame has a mounting box on its side wall, and the second slider box is disposed in the mounting box.

[0009] Preferably, the trigger deployment assembly includes a second rack, a push rod, a push block, a third slider, a slide rod, a third spring, and a drive mechanism. The drive mechanism is used to drive the push block forward and retract. One end of the push rod is fixedly connected to the second rack, and the other end is fixedly connected to the push block. The third slider is fixedly connected to the slide rod. The bottom of the mounting box is provided with a through hole. The slide rod slides within the mounting box and the through hole. One end of the third spring is fixedly connected to the third slider, and the other end is fixedly connected to the lower end of the mounting box.

[0010] Preferably, the drive mechanism includes a mounting plate, a first rack, a guide block, a first guide rod, a fourth spring, a gear, a fifth rotating shaft, a missing gear, a second guide rod, and a fifth spring.

[0011] Preferably, the first rack is disposed below the mounting plate and meshes with the gear. The guide block is disposed on the side wall of the first rack and slides on the first guide rod. The gear and the missing gear are fixedly connected to the fifth rotating shaft. The missing gear meshes with the second rack and slides on the second guide rod.

[0012] Preferably, the side wall of the enclosure module is provided with a water storage tank, the mounting plate slides inside the water storage tank, the fifth rotating shaft is rotatably connected to the inner wall of the water storage tank, one end of the fourth spring is fixedly connected to the first rack and the other end is fixedly connected to the lower end of the water storage tank, the first guide rod is fixedly connected to the lower end of the water storage tank, the second guide rod is fixedly connected to the side wall of the water storage tank, one end of the fifth spring is fixedly connected to the second rack and the other end is fixedly connected to the side wall of the water storage tank.

[0013] Preferably, the flushing assembly includes a solenoid valve, a drain pipe, and a rain sensor. One end of the drain pipe is fixedly connected to the lower end of the mounting plate, and the other end of the drain pipe is provided with several branch pipes. The several branch pipes pass through the lower side wall of the water storage tank and are fixedly connected. The solenoid valve is installed on the drain pipe, and the rain sensor is installed on the roof module plate.

[0014] Preferably, the lower side wall of the water storage tank is provided with a sliding hole, the pusher slides in the sliding hole, the upper end of the water storage tank is provided with a plurality of rain collection cups, and the lower end of the paving module plate is provided with a handle.

[0015] The present invention has the following beneficial effects: 1. In this invention, when residents want to rest outdoors in daily life, they can pull the sliding rod to release the restriction on the first slider. The paving module will then rotate and reset under the action of the spiral spring, flattening it out. Residents can sit on the paving module to rest. To retract the paving module, the handle can be pulled upwards to rotate the paving module and connecting rod upwards until the first slider presses against the second slider, causing it to slide downwards. Then, under the action of the second spring, the first slider will reset and lock in place, thus achieving the folding and storage of the paving module.

[0016] 2. Furthermore, the device can be a single unit, and several units can be connected in parallel or symmetrically. When there is heavy rain and a lot of water on the road, rainwater enters the water storage tank through the rain collection cup and presses down on the mounting plate, driving the fifth rotating shaft to rotate. The second rack slides forward under the meshing action of the missing gear, driving the push block to push forward and press against the third slider, causing the second slider to slide down and release the restriction on the first slider. Several paving module plates are flattened to form a wind and rain corridor to facilitate pedestrian walking.

[0017] 3. Furthermore, when the rain sensor detects that the weather is gradually clearing up, the solenoid valve opens, and the water stored in the water tank can be discharged from the drain pipe and eventually discharged from several branch pipes of the drain pipe to wash the paving module panels. This washes away the footprints and mud left by pedestrians, making it convenient for residents to rest on the paving module panels when they are outdoors. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a prefabricated multifunctional modular building device proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of the water storage tank in this invention; Figure 3 This is a schematic diagram of the connection structure of the folding storage component in this invention; Figure 4 This is a schematic diagram of the internal structure of the mounting groove and the first slider box in this invention; Figure 5 This is a schematic diagram of the internal structure of the mounting box in this invention; Figure 6 This is a schematic diagram of the connection structure of the second rack, push rod, and push block in this invention; Figure 7 This is a schematic diagram of the connection structure of the fourth rotating shaft, the spiral spring, and the spring box in this invention; Figure 8 This is a schematic diagram of the connection structure of the water storage tank, mounting plate, solenoid valve, and drain pipe in this invention; Figure 9 for Figure 1 Enlarged view of point A in the middle; Figure 10 for Figure 2 Enlarged view at point B in the middle; Figure 11 for Figure 4 Enlarged view of point C in the middle.

[0019] In the diagram: 1. Basic module base; 2. Structural module frame; 3. Connecting module plate; 4. Edge-sealing module frame; 5. Enclosure module plate; 6. Roofing module plate; 7. Paving module plate; 8. Slide groove; 9. Roller; 10. First rotating shaft; 11. Second rotating shaft; 12. Connecting rod; 13. Third rotating shaft; 14. Fourth rotating shaft; 15. Scroll spring; 16. Spring box; 17. First slider; 18. First telescopic rod; 19. First spring; 20. First slider box; 21. Second slider; 22. Second telescopic rod; 23. Second spring; 24. ... 25 Sliding block, 26 Third slider, 27 Sliding rod, 28 Third spring, 29 Mounting box, 30 Rain cup, 31 Water tank, 32 Mounting plate, 33 First rack, 34 Guide block, 35 First guide rod, 36 Fourth spring, 37 Gear, 38 Fifth rotating shaft, 39 Gear missing, 40 Second rack, 41 Second guide rod, 42 Fifth spring, 43 Push rod, 44 Push block, 45 Solenoid valve, 46 Drain pipe, 47 Rain sensor, 48 Handle, 49 Drain module slot. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1:

[0021] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 9 , Figure 11 A prefabricated multifunctional modular building device includes a base module seat 1, a structural module frame 2, a connecting module plate 3, an edge-sealing module frame 4, an enclosure module plate 5, a roof module plate 6, a paving module plate 7, and a drainage module channel 49. The base module seat 1 is equipped with a folding component for folding and storing the paving module plate 7. The base module seat 1 is also equipped with a trigger unfolding component for unfolding the folded and stored paving module plate 7. The base module seat 1 is also equipped with a rinsing component for rinsing the paving module plate 7.

[0022] The folding and storage assembly includes a slide 8, rollers 9, a first rotating shaft 10, a second rotating shaft 11, a connecting rod 12, a third rotating shaft 13, and a limiting and rotating mechanism. The limiting and rotating mechanism is used to limit the folding and storage movement of the paving module 7 and to drive it to rotate and reset. The slide 8 is set on both sides of the paving module 7, and the rollers 9 are set in the two slide 8. One end of the first rotating shaft 10 is rotatably connected to the rollers 9, and the other end is fixedly connected to the side wall of the structural module frame 2. The rollers 9 slide in the slide 8. The second rotating shaft 11 is set on both sides of the paving module 7, and one end of the connecting rod 12 is rotatably connected to the second rotating shaft 11, and the other end is fixedly connected to the third rotating shaft 13.

[0023] The limiting rotation mechanism includes a fourth rotating shaft 14, a spiral spring 15, a spring box 16, a first slider 17, a first telescopic rod 18, a first spring 19, a first slider box 20, a second slider 21, a second telescopic rod 22, a second spring 23, a second slider box 24, and a pressing block 25.

[0024] The first telescopic rod 18 is disposed inside the first slider box 20, the first slider 17 is disposed at the telescopic end of the first telescopic rod 18, one end of the first spring 19 is fixedly connected to the first slider 17, and the other end is fixedly connected to the base of the first telescopic rod 18, the second telescopic rod 22 is disposed inside the second slider box 24, the second slider 21 is fixedly connected to the telescopic end of the second telescopic rod 22, the pressing block 25 is fixedly connected below the second slider 21, one end of the second spring 23 is fixedly connected to the second slider 21, and the other end is fixedly connected to the base of the second telescopic rod 22, one end of the fourth rotating shaft 14 is fixedly connected to the third rotating shaft 13, and the other end is fixedly connected to the spiral spring 15, the other end of the spiral spring 15 is fixedly connected to the inner wall of the spring box 16, and the spring box 16 is disposed on both sides of the structural module frame 2.

[0025] The paving module 7 has mounting slots on both sides, the first slider box 20 is installed in the mounting slot, the structural module frame 2 has a mounting box 29 on its side wall, and the second slider box 24 is installed in the mounting box 29.

[0026] In this embodiment, under normal, non-severe weather conditions, the device can fully meet the needs of residents for outdoor rest, and is easy and user-friendly to operate. When residents wish to rest outdoors, no complicated operation is required; they only need to manually pull the slider 27 on the side of the device to trigger the unfolding of the paving module 7. After the slider 27 is subjected to force, it will drive the third slider 26 to move down synchronously. The third slider 26 moves down and presses against the pressing block 25, thereby releasing the limiting constraint of the second slider 21 on the first slider 17. At this time, the spiral spring 15 in the folding assembly will release the pre-stored rotational elastic force, driving the paving module 7 to smoothly reset and rotate, ultimately making the originally folded and stored paving module 7 completely flat. The flattened paving module 7 has a flat and stable surface and can serve as a temporary resting platform, where residents can sit and relax directly, meeting their daily needs such as neighborly communication and short rests.

[0027] When the rest period is over and the paving module 7 needs to be folded away, the operation is equally simple and efficient. Residents only need to pull upwards on the handle 48 at the bottom of the paving module 7, using the force point of the handle to rotate the paving module 7 and the connected rod 12 upwards. As the paving module 7 rotates, the first slider 17 on its side will gradually press against the second slider 21, forcing the second slider 21 to slide downwards against the elastic force of the second spring 23. After the paving module 7 rotates to the folded storage position, the second slider 21 will rebound upwards under the reset action of the second spring 23, re-locking and limiting the first slider 17, thus securely completing the folding and storage of the paving module 7. The entire process does not require tools and can be easily operated by one person, saving storage time and effectively reducing the space occupied by the paving module when unfolded, taking into account both the convenience of daily use and the utilization rate of public space. Example 2:

[0028] Reference Figure 2 , Figure 6 , Figure 10 The trigger deployment assembly includes a second rack 40, a push rod 43, a push block 44, a third slider 26, a slide rod 27, a third spring 28, and a drive mechanism. The drive mechanism is used to drive the push block 44 to push forward and retract. One end of the push rod 43 is fixedly connected to the second rack 40, and the other end is fixedly connected to the push block 44. The third slider 26 is fixedly connected to the slide rod 27. The bottom of the mounting box 29 is provided with a through hole. The slide rod 27 slides in the mounting box 29 and the through hole. One end of the third spring 28 is fixedly connected to the third slider 26, and the other end is fixedly connected to the lower end of the mounting box 29.

[0029] The drive mechanism includes a mounting plate 32, a first rack 33, a guide block 34, a first guide rod 35, a fourth spring 36, a gear 37, a fifth rotating shaft 38, a missing gear 39, a second guide rod 41, and a fifth spring 42.

[0030] The first rack 33 is located below the mounting plate 32 and meshes with the gear 37. The guide block 34 is located on the side wall of the first rack 33 and slides on the first guide rod 35. The gear 37, the missing gear 39 and the fifth rotating shaft 38 are fixedly connected. The missing gear 39 meshes with the second rack 40 and slides on the second guide rod 41.

[0031] The side wall of the enclosure module 5 is provided with a water storage tank 31. The mounting plate 32 slides inside the water storage tank 31. The fifth rotating shaft 38 is rotatably connected to the inner wall of the water storage tank 31. One end of the fourth spring 36 is fixedly connected to the first rack 33 and the other end is fixedly connected to the lower end of the water storage tank 31. The first guide rod 35 is fixedly connected to the lower end of the water storage tank 31. The second guide rod 41 is fixedly connected to the side wall of the water storage tank 31. One end of the fifth spring 42 is fixedly connected to the second rack 40 and the other end is fixedly connected to the side wall of the water storage tank 31.

[0032] The lower side wall of the water storage tank 31 is provided with a sliding hole, and the push block 44 slides in the sliding hole. Several rain collection cups 30 are provided at the upper end of the water storage tank 31, and a handle 48 is provided at the lower end of the paving module plate 7.

[0033] This embodiment, in conjunction with Embodiment 1, demonstrates that the prefabricated building device has flexible combination and expansion capabilities. A single device can serve as an independent functional unit. In practical applications, several device units can be arranged in parallel or symmetrically according to the layout requirements of public spaces in old residential areas, forming a large-scale public service facility system.

[0034] When encountering severe weather conditions with heavy rain and significant road flooding, the device's linkage function can be automatically activated. On one hand, rainwater will efficiently flow into the water storage tank 31 through the rain collection cup 30 at the top of the device. As the water volume increases, the gravity of the rainwater will push the mounting plate 32 inside the water storage tank 31 downwards. On the other hand, the downward movement of the mounting plate 32 will drive the associated transmission structure to rotate, causing the fifth rotating shaft 38 to rotate synchronously, which in turn causes the missing gear 39 fixed on the fifth rotating shaft to rotate accordingly. Under the meshing transmission action of the missing gear 39 and the second rack 40, the second rack 40 will slide forward along the second guide rod 41, and the push block 44 connected to one end of it will also be pushed forward, pressing against the third slider 26 inside the mounting box 29.

[0035] Under the pressure of the push block 44, the third slider 26 drives the slide rod 27 to move downward along the through hole, and at the same time triggers the second slider 21 to slide downward against the elastic force of the second spring 23, thereby releasing the limiting constraint on the first slider 17. At this time, under the combined action of the rotational restoring force of the spiral spring 15 in the folding assembly and the connecting rod 12 and roller 9, the several paving module panels 7 that were originally folded and stored will quickly and smoothly unfold. Due to the combined design of the device units, all the unfolded paving panels can be seamlessly connected to form a continuous and flat covered walkway.

[0036] This covered walkway not only shelters pedestrians from wind and rain, preventing them from being directly exposed to severe weather, but also avoids water accumulation on the road below, providing residents with a safe and dry passageway. It effectively solves the problem of "difficult travel and easy getting wet" in the community on rainy days, further enhancing the convenience and practicality of the device in complex weather conditions. Example 3:

[0037] Reference Figure 8 The flushing assembly includes a solenoid valve 45, a drain pipe 46, and a rain sensor 47. One end of the drain pipe 46 is fixedly connected to the lower end of the mounting plate 32, and the other end of the drain pipe 46 is provided with several branch pipes. The several branch pipes pass through the lower side wall of the water storage tank 31 and are fixedly connected. The solenoid valve 45 is installed on the drain pipe 46, and the rain sensor 47 is installed on the roof module plate 6.

[0038] In this embodiment, combined with embodiments one and two, when the rain sensor 47 detects in real time that the weather has changed from rain to clear skies and the precipitation has stopped, the system automatically triggers the flushing process. First, the solenoid valve 45 in the flushing component opens, and the rainwater pre-collected and stored in the water tank 31 through the rain collection cup 30 flows smoothly along the main drain pipe 46. Subsequently, through several branch pipes distributed at the end of the drain pipe 46, the water flows evenly and moderately to cover the entire surface of the paving module 7. This targeted flushing design can efficiently wash away the mud, footprints, and other attached stains left by pedestrians after rain, thoroughly cleaning the surface of the paving module 7. After flushing is completed and the paving module 7 is naturally dried, it can provide a clean and tidy space for residents to carry out outdoor activities such as walking, resting, and neighborly interaction. This not only ensures the environmental hygiene of public areas but also improves the comfort and experience of residents' outdoor activities, further meeting the core needs of convenient and practical public facilities in old residential areas.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated multifunctional combined building device, comprising a base module seat (1), a structural module frame (2), a connecting module plate (3), a wrapped module frame (4), a enclosure module plate (5), a roof module plate (6), a paving module plate (7), a drainage module groove (49), characterized in that, The base module seat (1) is provided with a folding assembly for folding and storing the paving module plate (7), and is also provided with a unfolding assembly for unfolding the folded and stored paving module plate (7), and is provided with a flushing assembly for flushing the paving module plate (7). The folding and storing assembly comprises a sliding groove (8), a roller (9), a first rotating shaft (10), a second rotating shaft (11), a connecting rod (12), a third rotating shaft (13) and a limiting rotation mechanism, the limiting rotation mechanism is used for limiting the folding and storing movement of the paving module plate (7) and driving the rotation reset, the sliding groove (8) is arranged on both sides of the paving module plate (7), the roller (9) is arranged in the two sliding grooves (8), one end of the first rotating shaft (10) is rotatably connected with the roller (9), and the other end is fixedly connected with the side wall of the structural module frame (2), the roller (9) slides in the sliding groove (8), and the second rotating shaft (11) is arranged on both sides of the paving module plate (7).

2. The prefabricated multifunctional combined building device according to claim 1, characterized in that, The limiting rotation mechanism comprises a fourth rotating shaft (14), a spiral spring (15), a spring box (16), a first sliding block (17), a first telescopic rod (18), a first spring (19), a first sliding block box (20), a second sliding block (21), a second telescopic rod (22), a second spring (23), a second sliding block box (24) and a pressing block (25).

3. The prefabricated multifunctional combined building device according to claim 2, characterized in that, The first telescopic rod (18) is arranged in the first sliding block box (20), the first sliding block (17) is arranged at the telescopic end of the first telescopic rod (18), one end of the first spring (19) is fixedly connected with the first sliding block (17), and the other end is fixedly connected with the base of the first telescopic rod (18), the second telescopic rod (22) is arranged in the second sliding block box (24), the second sliding block (21) is fixedly connected at the telescopic end of the second telescopic rod (22), the pressing block (25) is fixedly connected below the second sliding block (21), one end of the second spring (23) is fixedly connected with the second sliding block (21), and the other end is fixedly connected with the base of the second telescopic rod (22), one end of the fourth rotating shaft (14) is fixedly connected with the third rotating shaft (13), and the other end is fixedly connected with the spiral spring (15), the other end of the spiral spring (15) is fixedly connected with the inner wall of the spring box (16), and the spring box (16) is arranged on both sides of the structural module frame (2).

4. The prefabricated multifunctional combined building device according to claim 2, characterized in that, The paving module plate (7) is provided with a mounting groove on both sides, the first sliding block box (20) is arranged in the mounting groove, and the side wall of the structural module frame (2) is provided with a mounting box (29), and the second sliding block box (24) is arranged in the mounting box (29).

5. The prefabricated multifunctional combined building device according to claim 4, characterized in that, The touch development assembly comprises a second rack (40), a push rod (43), a push block (44), a third sliding block (26), a sliding rod (27), a third spring (28) and a driving mechanism for driving the push block (44) to push forward and retract, one end of the push rod (43) is fixedly connected with the second rack (40), and one end of the push rod (43) is fixedly connected with the push block (44), the third sliding block (26) is fixedly connected with the sliding rod (27), the bottom of the mounting box (29) is provided with a through hole, the sliding rod (27) slides in the mounting box (29) and the through hole, one end of the third spring (28) is fixedly connected with the third sliding block (26), and one end of the third spring (28) is fixedly connected with the lower end of the mounting box (29).

6. The prefabricated multifunctional combined building device according to claim 5, characterized in that, The driving mechanism comprises a mounting plate (32), a first rack (33), a guide block (34), a first guide rod (35), a fourth spring (36), a gear (37), a fifth rotating shaft (38), a gear with missing teeth (39), a second guide rod (41) and a fifth spring (42).

7. The prefabricated multifunctional combined building device according to claim 6, characterized in that, The first rack (33) is arranged below the mounting plate (32), the first rack (33) is meshed with the gear (37), the guide block (34) is arranged on the side wall of the first rack (33), the guide block (34) slides on the first guide rod (35), the gear (37) and the gear with missing teeth (39) are fixedly connected with the fifth rotating shaft (38), the gear with missing teeth (39) is meshed with the second rack (40), and the second rack (40) slides on the second guide rod (41).

8. The prefabricated multifunctional combined building device according to claim 7, characterized in that, The side wall of the surrounding module plate (5) is provided with a water storage tank (31), the mounting plate (32) slides in the water storage tank (31), the fifth rotating shaft (38) is rotatably connected to the inner wall of the water storage tank (31), one end of the fourth spring (36) is fixedly connected with the first rack (33), and one end of the fourth spring (36) is fixedly connected with the lower end of the water storage tank (31), the first guide rod (35) is fixedly connected with the lower end of the water storage tank (31), the second guide rod (41) is fixedly connected to the side wall of the water storage tank (31), one end of the fifth spring (42) is fixedly connected with the second rack (40), and one end of the fifth spring (42) is fixedly connected with the side wall of the water storage tank (31).

9. The prefabricated multifunctional combined building device according to claim 8, characterized in that, The flushing assembly comprises an electromagnetic valve (45), a drain pipe (46) and a rainwater sensor (47), one end of the drain pipe (46) is fixedly connected to the lower end of the mounting plate (32), the other end of the drain pipe (46) is provided with a plurality of branch pipes, the plurality of branch pipes are fixedly connected through the lower end side wall of the water storage tank (31), the electromagnetic valve (45) is arranged on the drain pipe (46), and the rainwater sensor (47) is arranged on the roof module plate (6).

10. The prefabricated multifunctional combined building device according to claim 8, characterized in that, The lower end side wall of the water storage tank (31) is provided with a sliding hole, the push block (44) slides in the sliding hole, the upper end of the water storage tank (31) is provided with a plurality of rainwater collecting cups (30), and the lower end of the paving module plate (7) is provided with a handle (48).

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