A prefabricated modular building earthquake-resistant device

Abstract

The present invention belongs to the technical field of earthquake-resistant structures, and in particular relates to an earthquake-resistant device for prefabricated modular buildings, comprising two support assemblies placed in parallel, the two support assemblies are respectively rotatably connected to one end of two connecting rods, the two support assemblies are respectively slidably connected to the other ends of the two connecting rods, a crossbeam assembly is inserted at the rotational connection between the two connecting rods, the two ends of the crossbeam assembly are respectively against the two support assemblies, two assembly parts are respectively slidably connected to the two support assemblies, the four assembly parts are respectively fixedly assembled with the four bottom corners of the prefabricated modular building, through the limiting effect of the two connecting rods, the two support assemblies are always kept in parallel when the distance is changed, reducing the tedious work of subsequent leveling, and the two support assemblies are easy to unfold and store, and convenient to transport and transfer.

Description

Technical Field

[0001] The invention belongs to the technical field of earthquake-resistant structures, and in particular relates to a prefabricated modular building earthquake-resistant device. Background Art

[0002] Prefabricated modular construction is a construction method that divides a building into standardized modules or components. These modules are usually prefabricated in a factory and then transported to the construction site for assembly. Prefabricated modular construction is widely used in residential, office buildings, schools, hospitals and other fields. In recent years, with the advancement of technology and the increasing demand for efficient and environmentally friendly buildings, this construction method has received more and more attention. Due to the simple structure and convenient disassembly and assembly of prefabricated modular buildings, their own earthquake resistance is relatively weak. The supporting components of the existing prefabricated modular building earthquake-resistant devices are placed separately. After being placed in the preset position, they need to be manually placed in parallel, which wastes time and manpower;

[0003] For example, the patent application number is CN202311546019.1, a prefabricated modular building earthquake-resistant structure and its construction method, a rail, a first through hole is opened on the side wall of the rail; the rail is fixed to the foundation; a fixing plate is arranged on the top of the rail; the fixing plate is clamped and fixed to the rail through the first through hole; the fixing plate can move on the rail along a first direction; a chuck is plugged and fixed to the fixing plate along a second direction; the chuck and the fixing plate can rotate relative to each other with the second direction as the axis; perpendicular to In the second direction, a second through hole capable of exposing the fixed plate is formed on the side wall of the chuck; along a third direction, the chuck is slidably connected to the assembly; a card plate, the card plate extends between the fixed plate and the chuck through the second through hole; along the second direction, one end of the card plate is elastically connected to the chuck to drive the other end of the card plate to be clamped and fixed to the fixed plate, and fix the chuck and the fixed plate. However, the disadvantage of this technical solution is that the two rails are placed separately, and after being placed in the preset position, they need to be manually placed in parallel, which wastes time and manpower. Summary of the invention

[0004] The purpose of the present invention is to provide a prefabricated modular building earthquake-resistant device to solve the problems in the prior art. The specific technical solution is as follows:

[0005] A prefabricated modular building earthquake-resistant device comprises two support assemblies placed in parallel, the two support assemblies are respectively rotatably connected to one end of two connecting rods, the two support assemblies are respectively slidably connected to the other ends of the two connecting rods, a crossbeam assembly is inserted into the rotational connection between the two connecting rods, the two ends of the crossbeam assembly are respectively against the two support assemblies, two assembly parts are respectively slidably connected to the two support assemblies, and the four assembly parts are respectively fixedly assembled to the four bottom corners of the prefabricated modular building.

[0006] Furthermore, the support assembly includes a steel rail, which is rotatably connected to one end of a connecting rod, and is slidably connected to another end of a connecting rod. A support rail is slidably connected to the steel rail, and two assembly parts are slidably connected to the support rail. A shock-absorbing spring is provided between the steel rail and the support rail.

[0007] Furthermore, the support rail is rotatably connected to the screw rod, the two assembly parts are both threadedly connected to the screw rod, and a scale is provided on the side of the support rail.

[0008] Furthermore, a plurality of leveling components are slidably connected in the rails, and the leveling components include a moving block, which is slidably connected in the rails, the moving block is rotatably connected to a threaded column, and the lower end of the threaded column is threadedly connected to a support block.

[0009] Furthermore, the assembly includes a skateboard, which is slidably connected to the support rail, a support plate is slidably connected inside the skateboard, the support plate is fixedly connected to the sliding rod, the sliding rod is slidably connected to the skateboard, two shock-absorbing springs are provided between the skateboard and the support plate, the support plate is fixedly assembled to the bottom corner of the prefabricated modular building, and a shock-absorbing pad is provided between the support plate and the prefabricated modular building.

[0010] Furthermore, the screw rod is threadedly connected to the slider, the slider is slidably connected to the slide plate, and a shock-absorbing spring three is arranged between the slider and the slide plate.

[0011] Furthermore, the crossbeam assembly includes a fixed column, which is inserted into the rotating connection of the two connecting rods. The fixed column is slidably connected to the center column, the center column is rotatably connected to the center plate, the center plate is slidably connected to the two edge plates, the upper ends of the two edge plates are each provided with a shock-absorbing pad 2, and the lower ends of the two edge plates are each provided with a threaded column, the threaded column is threadedly connected to the nut pad, and the nut pad rests on the support rail.

[0012] Furthermore, four corner frames are installed at the four top corners of the prefabricated modular building, a tensioning assembly is provided between two adjacent corner frames, and a tensioning assembly is provided between the support plate and the corner frame directly above it.

[0013] Furthermore, the tensioning assembly includes a first steel wire rope and a second steel wire rope, one end of the first steel wire rope is fixed on the angle bracket, the other end of the first steel wire rope passes through the feed hole on the outer frame and is fixed on the bobbin, one end of the second steel wire rope is fixed in the fixing hole on the outer frame, the other end of the second steel wire rope is fixed on the adjacent angle bracket, the bobbin is rotatably connected to the outer frame, ratchets are fixed at both ends of the bobbin, the ratchet is transmission-coordinatedly connected to a limit pawl, the limit pawl is fixed on axle rod one, the axle rod one is rotatably connected to the outer frame, and a torsion spring one is provided between the axle rod one and the outer frame.

[0014] Furthermore, push rods are rotatably connected at both ends of the spool, the ratchet is transmission-coordinatedly connected to one end of the power pawl, the other end of the power pawl is rotatably connected to the second shaft rod, a protrusion is provided in the middle of the second shaft rod, a torsion spring two is provided between the protrusion and the power pawl, both ends of the second shaft rod slide in the sliding grooves provided on the push rod, support rod one and support rod two are fixed on the push rod, support rod one is slidably connected to the limit rod, the front end of the limit rod is clamped on the protrusion, support rod two is threadedly connected to the screw, a turntable is fixed at the front end of the screw, a spring is provided between the limit rod and the turntable, the turntable and the screw are both slidably connected to the limit rod, the screw is rotatably connected to the scale plate, the scale plate is slidably connected to the second support rod, and a top column is fixed inside the outer frame.

[0015] The advantages of the present invention are:

[0016] 1. Through the limiting effect of the two connecting rods, the two support components always remain parallel when the distance changes, avoiding the tedious work of subsequent leveling, and are easy to unfold and store.

[0017] 2. The crossbeam assembly is inserted into the rotating connection between the two connecting rods and fixed on the ground. Therefore, the crossbeam assembly not only supports the prefabricated modular building, but also improves the stability between the two supporting assemblies. The two traditional supporting assemblies are arranged separately. If one of the supporting assemblies is hit, it is easy to cause the supporting assembly to separate from the prefabricated modular building, causing the prefabricated modular building to topple. In this solution, if one of the supporting assemblies is hit, the two connecting rods need to rotate and the other supporting assembly needs to move in coordination to separate the supporting assembly from the prefabricated modular building. Then, when hit by external force, it is difficult to separate the supporting assembly from the prefabricated modular building, thereby improving the stability of the structure.

[0018] 3. The distance between two supporting components is adjustable, and the distance between two assemblies on the same supporting component is adjustable, so that it can be adapted to prefabricated modular buildings of different specifications, with strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2The overall structure of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 The support assembly structure of the present invention is schematically shown in FIG. Figure 1 ;

[0022] Figure 4 The support assembly structure of the present invention is schematically shown in FIG. Figure 2 ;

[0023] Figure 5 for Figure 4 A partial enlarged view of the middle part;

[0024] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0025] Figure 7 The support assembly structure of the present invention is schematically shown in FIG. Figure 3 ;

[0026] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0027] Fig. 9 The support assembly structure of the present invention is schematically shown in FIG. Figure 4 ;

[0028] Fig.10 for Fig. 9 A partial enlarged view of point D in the middle;

[0029] Fig.11 The support assembly structure of the present invention is schematically shown in FIG. Figure 5 ;

[0030] Fig.12 for Fig.11 A partial enlarged view of point E in the middle;

[0031] Fig.13 The support assembly structure of the present invention is schematically shown in FIG. Figure 6 ;

[0032] Fig.14 for Fig.13 A partial enlarged view of point F in the middle;

[0033] Fig.15 The tensioning assembly structure of the present invention is schematically shown in FIG. Figure 1 ;

[0034] Fig.16 The tensioning assembly structure of the present invention is schematically shown in FIG. Figure 2 ;

[0035] Fig.17 The tensioning assembly structure of the present invention is schematically shown in FIG. Figure 3 ;

[0036] Fig.18 The tensioning assembly structure of the present invention is schematically shown in FIG. Figure 4 ;

[0037] Fig.19 The crossbeam assembly structure of the present invention is schematically shown in FIG. Figure 1 ;

[0038] Fig. 20 The crossbeam assembly structure of the present invention is schematically shown in FIG. Figure 2 ;

[0039] Fig.21 The crossbeam assembly structure of the present invention is schematically shown in FIG. Figure 3 .

[0040] Description of the markings in the figure:

[0041] Prefabricated modular building 1; steel rail 2; support rail 3; shock-absorbing spring 1 4; slide plate 5; support plate 6; slide bar 7; shock-absorbing spring 2 8; shock-absorbing pad 1 9; screw rod 10; slide block 11; shock-absorbing spring 3 12; connecting rod 13; moving block 14; threaded column 15; support block 16; angle bracket 17; first steel wire rope 18; second steel wire rope 19; outer frame 20; feed hole 21; spool 22; ratchet 23; limit pawl 24; shaft One 25; torsion spring one 26; push rod 27; power pawl 28; shaft rod two 29; torsion spring two 30; bump 31; support rod one 32; limit rod 33; spring 34; turntable 35; screw rod 36; support rod two 37; scale plate 38; top column 39; fixing hole 40; slide groove 41; scale 42; center plate 43; edge plate 44; shock-absorbing pad two 45; threaded column 46; nut washer 47; center column 48; fixing column 49. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] Embodiment 1

[0045] like Figure 1-21 As shown, a prefabricated modular building earthquake-resistant device comprises two support assemblies placed in parallel, the two support assemblies are respectively rotatably connected to one end of two connecting rods 13, the two support assemblies are respectively slidably connected to the other ends of the two connecting rods 13, a crossbeam assembly is inserted into the rotational connection between the two connecting rods 13, the two ends of the crossbeam assembly are respectively against the two support assemblies, two assembly parts are respectively slidably connected to the two support assemblies, and the four assembly parts are respectively fixedly assembled with the four bottom corners of the prefabricated modular building 1;

[0046] The working principle of the above technical solution is: two connecting rods 13 are placed crosswise between the two supporting assemblies, the two connecting rods 13 are rotatably connected to each other, one end of the two connecting rods 13 is rotatably connected to the two supporting assemblies respectively, and the other end of the two connecting rods 13 is slidably connected to the two supporting assemblies respectively, so that when the distance between the two supporting assemblies is changed, the two supporting assemblies are always kept parallel;

[0047] The distance between the two support assemblies is adjusted to match the length of the prefabricated modular building 1, and the two assembly parts on the support assemblies are slidably adjusted to match the width of the prefabricated modular building 1. The middle part of the beam assembly is inserted from the rotating connection between the two connecting rods 13 and fixed to the ground. The two ends of the beam assembly are respectively against the two support assemblies. The prefabricated modular building 1 is hoisted and placed on the prefabricated modular building anti-seismic device. The four bottom corners of the prefabricated modular building 1 are pressed on the four assembly parts. The middle part of the prefabricated modular building 1 is supported by the beam assembly, thereby completing the assembly between the prefabricated modular building anti-seismic device and the prefabricated modular building 1.

[0048] The beneficial effects of the above technical solution are as follows: through the limiting effect of the two connecting rods 13, the two supporting components are always kept in parallel when the distance is changed, thus avoiding the tedious work of subsequent leveling;

[0049] The crossbeam assembly is inserted into the rotating connection between the two connecting rods 13 and fixed on the ground. Therefore, the crossbeam assembly not only supports the prefabricated modular building, but also improves the stability between the two supporting assemblies. The two traditional supporting assemblies are separately arranged. If one of the supporting assemblies is hit, it is easy to cause the supporting assembly to separate from the prefabricated modular building 1, causing the prefabricated modular building 1 to fall. In this solution, if one of the supporting assemblies is hit, the two connecting rods 13 need to rotate and the other supporting assembly needs to move in coordination to separate the supporting assembly from the prefabricated modular building 1. Then, when hit by external force, it is difficult for the supporting assembly to separate from the prefabricated modular building 1, thereby improving the stability of the structure.

[0050] The distance between two supporting components is adjustable, and the distance between two assemblies on the same supporting component is adjustable, so that the prefabricated modular buildings 1 of different specifications can be adapted, and the adaptability is strong.

[0051] Embodiment 2

[0052] like Figure 1-21 As shown, the support assembly includes a steel rail 2, the steel rail 2 is rotatably connected to the end of a connecting rod 13, the steel rail 2 is slidably connected to the end of another connecting rod 13, a support rail 3 is slidably connected to the steel rail 2, two assembly parts are slidably connected to the support rail 3, and a shock absorbing spring 4 is provided between the steel rail 2 and the support rail 3;

[0053] The support rail 3 is rotatably connected to the screw rod 10, and both assembly parts are threadedly connected to the screw rod 10. A scale 42 is provided on the side of the support rail 3;

[0054] The rail 2 is slidably connected with a plurality of leveling components, the leveling components including a moving block 14, the moving block 14 is slidably connected in the rail 2, the moving block 14 is rotatably connected with a threaded column 15, the lower end of the threaded column 15 is threadedly connected with a support block 16, and the moving block 14 is slidably connected with the support block 16;

[0055] The working principle of the above technical solution is: when vibration occurs, the steel rail 2 and the support rail 3 slide, and the shock-absorbing spring 4 stretches and contracts, which can neutralize the force of the up and down vibration and reduce the damage of the up and down vibration to the prefabricated modular building 1;

[0056] The screw rod 10 is rotated to drive the two assembly parts to slide toward the ends or the middle on the support rail 3, thereby changing the distance between the two assembly parts. The scale 42 can check the specific distance value between the two assembly parts, which can be finely adjusted according to the width of the prefabricated modular building 1;

[0057] Since the ground on which the rail 2 is placed is sometimes not flat, a leveling assembly is required for leveling. A plurality of through holes are provided above the threaded column 15, into which steel bars can be inserted, and the steel bars are moved horizontally to drive the leveling assembly to slide in the rail 2. The leveling assembly slides to a low-lying area on the ground, and the steel bars are rotated. The threaded column 15 at the bottom is rotated, driving the support block 16 and the moving block 14 to slide, and the support block 16 moves downward, and the lower end of the support block 16 is supported on the ground, thereby preventing the rail 2 from being partially separated from the ground and having the risk of being bent.

[0058] Embodiment 3

[0059] like Figure 1-21As shown, the assembly includes a slide plate 5, the slide plate 5 is slidably connected to the support rail 3, a support plate 6 is slidably connected inside the slide plate 5, the support plate 6 is fixedly connected to the slide bar 7, the slide bar 7 is slidably connected to the slide plate 5, a shock absorbing spring 8 is provided between the slide plate 5 and the support plate 6, the support plate 6 is fixedly assembled with the bottom corner of the prefabricated modular building 1, and a shock absorbing pad 9 is provided between the support plate 6 and the prefabricated modular building 1;

[0060] The screw rod 10 is threadedly connected to the slider 11, the slider 11 is slidably connected to the slide plate 5, and a shock absorbing spring 3 12 is provided between the slider 11 and the slide plate 5;

[0061] The working principle of the above technical solution is: the screw rod 10 is rotated to drive the two sliders 11 to move, and the two sliders 5 are driven to slide on the support rail 3 through the connection of the shock-absorbing spring 3 12, so as to change the distance between the two sliders 5, and then change the distance between the two support plates 6, so as to adapt to the width of the prefabricated modular building 1;

[0062] When encountering vibration, the two slide plates 5 slide with the support rail 3, the slide plate 5 slides with the slider 11, and the shock absorbing spring 3 12 between the slide plate 5 and the slider 11 performs telescopic movement, which can neutralize the force of the left and right vibrations and reduce the damage of the prefabricated modular building 1 caused by the left and right vibrations;

[0063] When encountering vibration, the support plate 6 slides back and forth in the slide plate 5, driving the slide bar 7 and the slide plate 5 to slide back and forth, driving the shock-absorbing spring 2 8 to perform telescopic movement, which can neutralize the force of the front and rear vibrations and reduce the damage of the front and rear vibrations to the prefabricated modular building 1;

[0064] Furthermore, by providing the shock absorbing spring 1 4, the shock absorbing spring 2 8 and the shock absorbing spring 3 12, when the prefabricated modular building 1 is subjected to vibration, springs can be used to buffer the prefabricated modular building 1 in the up-down, front-back and left-right directions, thereby effectively protecting the prefabricated modular building 1 and preventing it from being damaged by vibration.

[0065] The shock-absorbing pad 9 further reduces the shock of the prefabricated modular building 1.

[0066] Embodiment 4

[0067] like Figure 1-21 As shown, the crossbeam assembly includes a fixed column 49, which is inserted into the rotational connection of the two connecting rods 13, and the fixed column 49 is slidably connected to the center column 48, and the center column 48 is rotatably connected to the center plate 43, and the center plate 43 is slidably connected to the two edge plates 44, and the upper ends of the two edge plates 44 are provided with shock-absorbing pads 45, and the lower ends of the two edge plates 44 are provided with threaded columns 46, and the threaded columns 46 are threadedly connected to the nut washers 47, and the nut washers 47 are against the support rail 3;

[0068] The working principle of the above technical solution is as follows: after adjusting the distance between the two rails 2, insert the fixing column 49 into the rotating connection of the two connecting rods 13, and knock the upper end of the fixing column 49 to fix the fixing column 49 on the ground. The fixing column 49 improves the stability between the two supporting components, and the center column 48 and the center plate 43 are inserted into the fixing column 49 as a whole, and the two edge plates 44 are pulled out. The two edge plates 44 are slidably connected with the center column 48, so that the edges of the edge plates 44 are aligned with the rails 2, and the nut pad 47 is rotated. The threaded column 46 and the nut pad 47 are threadedly rotated, driving the nut pad 47 to move downward, and the lower end of the nut pad 47 is against the support rail 3. The shock-absorbing pad 45 further has the effect of shock-absorbing and buffering the prefabricated modular building 1. The beam assembly has the function of supporting the prefabricated modular building 1 and improving the structural stability.

[0069] Embodiment 5

[0070] like Figure 1-21 As shown, four corner brackets 17 are installed at the four top corners of the prefabricated modular building 1, a tensioning assembly is provided between two adjacent corner brackets 17, and a tensioning assembly is provided between the support plate 6 and the corner bracket 17 directly above it;

[0071] The working principle of the above technical solution is as follows: four corner frames 17 are placed at the four top corners of the prefabricated modular building 1, a tensioning assembly is provided between two adjacent corner frames 17, and a tensioning assembly is provided between the support plate 6 and the corner frame 17 directly above it. The tensioning assembly can further fix the prefabricated modular building 1 on the support plate 6, which can effectively reduce the risk of the prefabricated modular building 1 tipping over under severe vibration.

[0072] Embodiment 6

[0073] like Figure 1-21 As shown, the tensioning assembly includes a first steel wire rope 18 and a second steel wire rope 19, one end of the first steel wire rope 18 is fixed on the angle frame 17, the other end of the first steel wire rope 18 passes through the feed hole 21 on the outer frame 20 and is fixed on the bobbin 22, one end of the second steel wire rope 19 is fixed in the fixing hole 40 on the outer frame 20, the other end of the second steel wire rope 19 is fixed on the adjacent angle frame 17, the bobbin 22 is rotatably connected with the outer frame 20, ratchets 23 are fixed at both ends of the bobbin 22, the ratchet 23 is transmission-coordinatedly connected with a limit pawl 24, the limit pawl 24 is fixed on a shaft rod 25, the shaft rod 25 is rotatably connected with the outer frame 20, and a torsion spring 26 is provided between the shaft rod 25 and the outer frame 20;

[0074] The two ends of the spool 22 are rotatably connected with a push rod 27, the ratchet 23 is transmission-coordinatedly connected with one end of a power pawl 28, and the other end of the power pawl 28 is rotatably connected with a shaft rod 29. A protrusion 31 is provided in the middle of the shaft rod 29, and a torsion spring 20 is provided between the protrusion 31 and the power pawl 28. Both ends of the shaft rod 29 slide in a slide groove 41 provided on the push rod 27. A support rod 1 32 and a support rod 2 37 are fixed on the push rod 27. The support rod 1 32 is slidably connected with a limit rod 33. The front end of the limit rod 33 is clamped on the protrusion 31, and the support rod 2 37 is threadedly connected with a screw 36. A rotating disk 35 is fixed at the front end of the screw 36. A spring 34 is provided between the limit rod 33 and the rotating disk 35. The rotating disk 35 and the screw 36 are both slidably connected with the limit rod 33. The screw 36 is rotatably connected with a scale plate 38, and the scale plate 38 is slidably connected with the support rod 2 37. A top column 39 is fixed inside the outer frame 20.

[0075] The working principle of the above technical solution is as follows: one end of the first steel wire rope 18 is fixed on the angle frame 17, the other end of the first steel wire rope 18 passes through the feed hole 21 on the outer frame 20 and is fixed on the bobbin 22, one end of the second steel wire rope 19 is fixed in the fixing hole 40 on the outer frame 20, and the other end of the second steel wire rope 19 is fixed on the adjacent angle frame 17, the push rod 27 is pushed forward, and the shaft rod 29 is driven to move with the push rod 27, and the front end of the power pawl 28 is driven to get stuck in the ratchet 23, and the ratchet 23 is driven to rotate, and the bobbin 22 is driven to rotate, and the first steel wire rope 18 is driven to be wound on the bobbin 22, and the push rod 27 is pushed backward to pull the torsion spring 230. Under the action of elastic force, the front end of the power pawl 28 is driven to slide backward against the ratchet 23. Since the front end of the limit pawl 24 is against the ratchet 23, the ratchet 23 cannot automatically reverse. Under the action of the elastic force of the torsion spring 26, the front end of the limit pawl 24 is always against the ratchet 23. The push rod 27 reciprocates back and forth many times, and the first steel wire rope 18 is wound around the bobbin 22, thereby tightening the two adjacent corner frames 17. The support plate 6 and the corner frame 17 directly above it are tightened in the above method, thereby further fixing the prefabricated modular building 1 on the support plate 6, which can effectively reduce the risk of the prefabricated modular building 1 tipping over under severe vibration;

[0076] When the tensioning force of two adjacent corner frames 17 reaches a preset value, the push rod 27 is pushed forward, and the protrusion 31 on the second shaft rod 29 squeezes the limit rod 33 to shrink backward, driving the spring 34 to be compressed. The protrusion 31 is no longer restricted by the limit rod 33, and the push rod 27 continues to be pushed forward. The ratchet 23 squeezes the power pawl 28 and the second shaft rod 29 to move backward, and the second shaft rod 29 slides backward in the slide groove 41, so that the first steel wire rope 18 cannot be wound around the spool 22, which can effectively prevent the damage to the top corner of the prefabricated modular building 1 or the damage to the tensioning component caused by excessive force;

[0077] The push rod 27 is pressed downward, driving the protrusion 31 to abut against the top column 39, and the protrusion 31 squeezes the limit rod 33 to move backward, driving the spring 34 to contract, thereby moving the protrusion 31 to the front end of the limit rod 33, and then restoring the initial state, completing the resetting of the tensioning assembly;

[0078] The screw rod 36 is rotated to drive the turntable 35 to move forward or backward, thereby changing the distance between the limit rod 33 and the turntable 35, thereby changing the tension of the spring 34, and thereby changing the preset torque. The scale plate 38 slides with the second support rod 37, and the scale of the second support rod 37 corresponds to the current torque value on the scale plate 38. The torque value can be adjusted according to the prefabricated modular building 1 of different materials and pressure bearing capacity, so that the prefabricated modular building 1 is fastened to the support plate 6 without being squeezed and damaged.

[0079] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A prefabricated modular building earthquake-resistant device, characterized in that: The invention comprises two support assemblies placed in parallel, the two support assemblies are respectively rotatably connected to one end of two connecting rods (13), the two support assemblies are respectively slidably connected to the other end of the two connecting rods (13), a crossbeam assembly is inserted into the rotational connection between the two connecting rods (13), the two ends of the crossbeam assembly are respectively against the two support assemblies, two assembly parts are respectively slidably connected to the two support assemblies, and the four assembly parts are respectively fixedly assembled with the four bottom corners of the prefabricated modular building (1).

2. A prefabricated modular building earthquake-resistant device according to claim 1, characterized in that: The support assembly comprises a steel rail (2), the steel rail (2) is rotatably connected to the end of a connecting rod (13), the steel rail (2) is slidably connected to the end of another connecting rod (13), a support rail (3) is slidably connected to the steel rail (2), two assembly parts are slidably connected to the support rail (3), and a shock-absorbing spring (4) is provided between the steel rail (2) and the support rail (3).

3. A prefabricated modular building earthquake-resistant device according to claim 2, characterized in that: The support rail (3) is rotatably connected to the screw rod (10), the two assembly parts are both threadedly connected to the screw rod (10), and a scale (42) is provided on the side of the support rail (3).

4. The prefabricated modular building earthquake-resistant device according to claim 3, characterized in that: A plurality of leveling components are slidably connected in the steel rail (2), and the leveling components include a moving block (14), the moving block (14) is slidably connected in the steel rail (2), the moving block (14) is rotatably connected to a threaded column (15), and the lower end of the threaded column (15) is threadedly connected to a support block (16).

5. The prefabricated modular building earthquake-resistant device according to claim 3, characterized in that: The assembly comprises a slide plate (5), the slide plate (5) is slidably connected to the support rail (3), a support plate (6) is slidably connected inside the slide plate (5), the support plate (6) is fixedly connected to the slide rod (7), the slide rod (7) is slidably connected to the slide plate (5), a second shock-absorbing spring (8) is provided between the slide plate (5) and the support plate (6), the support plate (6) is fixedly assembled with the bottom corner of the prefabricated modular building (1), and a shock-absorbing pad (9) is provided between the support plate (6) and the prefabricated modular building (1).

6. The prefabricated modular building earthquake-resistant device according to claim 5, characterized in that: The screw rod (10) is threadedly connected to the slider (11), the slider (11) is slidably connected to the slide plate (5), and a shock absorbing spring (12) is provided between the slider (11) and the slide plate (5).

7. The prefabricated modular building earthquake-resistant device according to claim 2, characterized in that: The crossbeam assembly comprises a fixed column (49), the fixed column (49) is inserted into the rotational connection of the two connecting rods (13), the fixed column (49) is slidably connected to the center column (48), the center column (48) is rotatably connected to the center plate (43), the center plate (43) is slidably connected to the two edge plates (44), the upper ends of the two edge plates (44) are provided with a shock-absorbing pad (45), the lower ends of the two edge plates (44) are provided with a threaded column (46), the threaded column (46) is threadedly connected to the nut washer (47), and the nut washer (47) is against the support rail (3).

8. The prefabricated modular building earthquake-resistant device according to claim 5, characterized in that: Four corner frames (17) are installed at the four top corners of the upper end of the prefabricated modular building (1), a tensioning assembly is provided between two adjacent corner frames (17), and a tensioning assembly is provided between the support plate (6) and the corner frame (17) directly above it.

9. The prefabricated modular building earthquake-resistant device according to claim 8, characterized in that: The tensioning assembly comprises a first steel wire rope (18) and a second steel wire rope (19), one end of the first steel wire rope (18) is fixed on the angle frame (17), the other end of the first steel wire rope (18) passes through the feed hole (21) on the outer frame (20) and is fixed on the bobbin (22), one end of the second steel wire rope (19) is fixed in the fixing hole (40) on the outer frame (20), the other end of the second steel wire rope (19) is fixed on the adjacent angle frame (17), the bobbin (22) is rotatably connected to the outer frame (20), ratchets (23) are fixed at both ends of the bobbin (22), the ratchet (23) is transmission-coordinatedly connected to a limit pawl (24), the limit pawl (24) is fixed on a shaft rod (25), the shaft rod (25) is rotatably connected to the outer frame (20), and a torsion spring (26) is provided between the shaft rod (25) and the outer frame (20).

10. The prefabricated modular building earthquake-resistant device according to claim 9, characterized in that: The two ends of the spool (22) are rotatably connected to a push rod (27), the ratchet (23) is transmission-coordinatedly connected to one end of a power pawl (28), the other end of the power pawl (28) is rotatably connected to a second shaft rod (29), a convex block (31) is provided in the middle of the second shaft rod (29), a second torsion spring (30) is provided between the convex block (31) and the power pawl (28), the two ends of the second shaft rod (29) slide in a slide groove (41) provided on the push rod (27), a support rod (32) and a support rod (37) are fixed on the push rod (27), the support rod (32) The outer frame (20) is slidably connected to the limit rod (33), the front end of the limit rod (33) is clamped on the protrusion (31), the second support rod (37) is threadedly connected to the screw rod (36), the front end of the screw rod (36) is fixed with a rotating disk (35), a spring (34) is provided between the limit rod (33) and the rotating disk (35), the rotating disk (35) and the screw rod (36) are both slidably connected to the limit rod (33), the screw rod (36) is rotatably connected to the scale plate (38), the scale plate (38) is slidably connected to the second support rod (37), and a top column (39) is fixed inside the outer frame (20).

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