Lifting device for fabricated building

Abstract

The utility model belongs to the technical field of lifting devices, and particularly relates to an assembly type building lifting device which comprises a support, the lifting device is arranged in the support, the lifting device comprises a protection mechanism, a lifting mechanism and an anti-collision mechanism, the protection mechanism is arranged in the support, the lifting mechanism is arranged on the top of the support, and the anti-collision mechanism is arranged in the support. According to the lifting device for the fabricated building, by arranging the protection mechanism, after a rope is broken, an electromagnetic block and a magnet repel each other, so that a clamping plate is pushed to be inserted between two adjacent clamping blocks, a braking effect on the lifting box is achieved, the fabricated building is prevented from falling from a high place, and the safety of the device is improved; the safety problem caused by the fact that in the background technology, when a steel rope is abraded and fractured in the using process, an assembled building can fall off from a high position is solved, by arranging an anti-collision mechanism, when a lifting box makes contact with the ground, a second spring and a damping rod are extruded through a bottom plate, and therefore collision between the lifting box and the ground is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, specifically a lifting device for prefabricated buildings. Background Technology

[0002] With the development of modern industrial technology, houses can be built in batches, just like machine production. All that's needed is to transport the prefabricated house components to the construction site and assemble them.

[0003] Most of the prefabricated building lifting devices currently in use employ cranes for hoisting. The prefabricated building is fixedly lifted to a designated position using steel cables, and then assembled.

[0004] However, existing lifting devices rely solely on steel cables for hoisting. The heavier the load below the steel cables, the more prone they are to swaying. This can lead to excessive swaying during hoisting, posing a risk of collision or falling of the assembled building.

[0005] As disclosed in CN210683012U, a lifting device for prefabricated buildings uses a sliding groove on a fixed block and a slider on a second fixed plate. Sliding grooves are provided on the right side of the left fixed block and the left side of the right fixed block. Sliding sliders are fixedly installed on the left and right sides of the second fixed plate. The sliders are slidably connected to the sliding grooves, which facilitates the movement of the second fixed plate by the upper steel rope during traction, thereby lifting the prefabricated building. The swaying amplitude of the steel rope is reduced, which solves the problem of large swaying during lifting that could cause the prefabricated building to be damaged or fall.

[0006] However, if the steel rope breaks due to wear during use, the assembled building may fall from a height, causing safety issues.

[0007] Therefore, we urgently need to provide a lifting device for prefabricated buildings. Utility Model Content

[0008] The purpose of this utility model is to provide a lifting device for prefabricated buildings to solve the safety problem mentioned in the background art, which is that when the steel rope wears and breaks during use, the prefabricated building will fall from a height and cause safety issues.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a lifting device for prefabricated buildings, comprising a support frame, wherein a lifting device is provided inside the support frame, and the lifting device includes a protective mechanism, a lifting mechanism, and an anti-collision mechanism.

[0010] The protective mechanism is located inside the support frame, the lifting mechanism is located at the top of the support frame, and the anti-collision mechanism is located inside the support frame.

[0011] The protective mechanism includes a lifting box, a mounting block, a connecting block, a pressure sensor, a limiting block, a locking plate, a first spring, a magnet, an electromagnetic block, a power supply, and a locking block. The lifting box is disposed inside the bracket. The mounting block is fixedly installed on the left and right sides of the lifting box. The connecting block is slidably connected inside the mounting block and extends to the top of the mounting block. The pressure sensor is fixedly installed at the bottom inside the mounting block. The limiting block is fixedly installed at the left and right ends of the bottom of the lifting box. The locking plate is slidably connected inside the limiting block. The first spring is fixedly installed at the top and bottom ends of one side of the limiting block. The magnet is fixedly installed at one end of the locking plate. The electromagnetic block is fixedly installed on the left and right sides of the bottom of the lifting box. The power supply is fixedly installed at the bottom of the lifting box. The locking block is fixedly installed on the left and right sides of the inner wall of the bracket.

[0012] Preferably, the pressure sensor is electrically connected to the power supply, and the power supply is connected to the electromagnetic block via a wire. The magnet and the electromagnetic block have the same magnetism. When the pressure sensor is pressed, the electronic switch inside the pressure sensor closes, thereby turning on the power supply to energize the electromagnetic block, so that the electromagnetic block has the same magnetism as the magnet. Since like poles repel each other, the left and right clamping plates can move linearly along the limiting block.

[0013] Preferably, there are multiple card blocks, and the distance between adjacent card blocks is greater than the thickness of the card plate, so that the card plate can be inserted between two adjacent card blocks to brake the lifting box.

[0014] Preferably, the lifting mechanism includes a motor, a rotating shaft, a transmission component, a fixed block, a rotating rod, a winding roller, a rope, a metal ring, side ears, and a guide rod. The motor is fixedly installed on the top of the bracket, the rotating shaft is fixedly installed at its output end, the transmission component is installed on the left end of the rotating shaft, the fixed block is fixedly installed on the left and right sides of the top of the bracket, the rotating rod is rotatably connected inside the left and right fixed blocks, the winding roller is fixedly installed at the left and right ends of the rotating rod, the rope is wound inside the winding roller, the metal ring is fixedly installed at the bottom of the rope, the side ears are fixedly installed around the outside of the lifting box, and the guide rod is fixedly installed around the inside of the bracket.

[0015] Preferably, the metal ring is connected to the upper end of the connecting block, and the guide rod passes through the side lug. The starting motor drives the rotating shaft to rotate, and under the action of the transmission component, it drives the rotating rod and the winding roller to rotate, thereby winding the rope. Thus, the lifting box is pulled up and down along the guide rod by the rope, realizing the lifting of the assembled building.

[0016] Preferably, the anti-collision mechanism includes a second spring, a damping rod, and a base plate. The second spring is fixedly installed around the bottom of the lifting box, the damping rod is installed inside the second spring, and the base plate is fixedly installed at the bottom of the front and rear second springs.

[0017] Preferably, a rubber pad is installed at the bottom of the base plate. When the lifting box contacts the ground, the base plate compresses the second spring and damping rod, thereby reducing the collision between the lifting box and the ground. At the same time, the rubber pad prevents the base plate from having a hard collision with the ground, thus improving the service life of the base plate.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This prefabricated building lifting device, by setting up a protective mechanism, when the rope breaks, the electromagnetic block and the magnet repel each other, thereby pushing the locking plate to insert between two adjacent locking blocks, which acts as a brake on the lifting box, preventing the prefabricated building from falling from a height and improving the safety of the device.

[0020] 2. This prefabricated building lifting device, by setting up an anti-collision mechanism, reduces the collision between the lifting box and the ground by squeezing the second spring and damping rod through the bottom plate when the lifting box contacts the ground. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the connection between the lifting box and the mounting block of this utility model;

[0024] Figure 4 This is a partial structural diagram of the bottom of the lifting box of this utility model.

[0025] In the diagram: 1. Bracket; 201. Lifting box; 202. Mounting block; 203. Connecting block; 204. Pressure sensor; 205. Limiting block; 206. Clamping plate; 207. First spring; 208. Magnet; 209. Electromagnetic block; 210. Power supply; 211. Clamping block; 301. Motor; 302. Rotating shaft; 303. Transmission component; 304. Fixing block; 305. Rotating rod; 306. Rewinding roller; 307. Rope; 308. Metal ring; 309. Side lug; 310. Guide rod; 401. Second spring; 402. Damping rod; 403. Base plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0027] Based on current technology, if the steel cable wears and breaks during use, the assembled structure may fall from a height, causing safety issues. Please refer to [link / reference needed]. Figures 1-4 This embodiment provides a lifting device for prefabricated buildings, which can prevent prefabricated buildings from falling from heights and improve the safety of the device. The lifting device for prefabricated buildings includes a support 1, and a lifting device is installed inside the support 1. The lifting device includes a protective mechanism, a lifting mechanism, and an anti-collision mechanism.

[0028] The protective mechanism is located inside the support 1, the lifting mechanism is located on the top of the support 1, and the anti-collision mechanism is located inside the support 1.

[0029] The protective mechanism includes a lifting box 201, a mounting block 202, a connecting block 203, a pressure sensor 204, a limit block 205, a locking plate 206, a first spring 207, a magnet 208, an electromagnetic block 209, a power supply 210, and a locking block 211. The lifting box 201 is located inside the bracket 1. The mounting block 202 is fixedly installed on the left and right sides of the lifting box 201. The connecting block 203 is slidably connected inside the mounting block 202 and extends to the top of the mounting block 202. The pressure sensor 204 is fixedly installed at the bottom inside the mounting block 202 and is electrically connected to the power supply 210. The pressure sensor 204 is a GEMS-2200 model. When the pressure sensor 204 is under pressure, it can directly control the power supply 210 to turn on. The power supply 210 is connected to the electromagnetic block 209 through a wire. The magnet 208 has the same magnetism as the electromagnetic block 209. When the pressure sensor 204 is compressed, the pressure sensor 204... When the electronic switch is closed, the power supply 210 is turned on, energizing the electromagnetic block 209. This gives the electromagnetic block 209 the same magnetism as the magnet 208. Due to the repulsion of like poles, the two left and right locking plates 206 can move linearly along the limiting block 205. The limiting block 205 is fixedly installed at the bottom left and right ends of the lifting box 201. The locking plates 206 are slidably connected inside the limiting block 205. The first spring 207 is fixedly installed at the top and bottom ends of one side of the limiting block 205. The magnet 208 is fixedly installed at one end of the locking plate 206. The electromagnetic block 209 is fixedly installed on the bottom left and right sides of the lifting box 201. The power supply 210 is fixedly installed at the bottom of the lifting box 201. The locking blocks 211 are fixedly installed on the inner wall left and right sides of the bracket 1. There are multiple locking blocks 211, and the distance between adjacent locking blocks 211 is greater than the thickness of the locking plate 206, so that the locking plate 206 can be inserted between two adjacent locking blocks 211, thus braking the lifting box 201.

[0030] To improve the stability of the lifting box 201 in lifting the assembled building, this device is also equipped with a lifting mechanism, which includes a motor 301, a rotating shaft 302, a transmission component 303, a fixed block 304, a rotating rod 305, a take-up roller 306, a rope 307, a metal ring 308, a side lug 309, and a guide rod 310. The motor 301 is fixedly installed on the top of the support 1, the rotating shaft 302 is fixedly installed on the output end of the rotating shaft 302, and the transmission component 303 is installed on the left end of the rotating shaft 302. The transmission component 303 is a gear, and there are two gears, which are fixed on the outside of the rotating shaft 302 and the rotating rod 305 respectively. When the motor 301 drives the rotating shaft 302 to rotate, the two gears mesh, causing the rotating rod 305 to rotate simultaneously. The fixed block 304 is fixedly installed on the left and right sides of the top of the support 1, and the rotating rod 305 is rotatably connected to the two fixed blocks. Inside the fixed block 304, the take-up roller 306 is fixedly installed at both ends of the rotating rod 305. The rope 307 is wound inside the take-up roller 306. The metal ring 308 is fixedly installed at the bottom of the rope 307 and is connected to the upper end of the connecting block 203. The guide rod 310 passes through the side ear 309. The starting motor 301 drives the rotating shaft 302 to rotate. Under the action of the transmission component 303, the rotating rod 305 and the take-up roller 306 rotate, winding the rope 307. Thus, the rope 307 pulls the lifting box 201 up and down along the guide rod 310, realizing the lifting of the assembled building. The side ear 309 is fixedly installed around the outside of the lifting box 201. The guide rod 310 is fixedly installed around the inside of the bracket 1. The guide rod 310 limits the lifting of the lifting box 201 and prevents the lifting box 201 from shaking. Example

[0031] Based on Example 1, please refer to Figures 1-4 To prevent excessive collisions between the lifting box 201 and the ground, this device is also equipped with an anti-collision mechanism. The anti-collision mechanism includes a second spring 401, a damping rod 402, and a base plate 403. The second spring 401 is fixedly installed around the bottom of the lifting box 201, the damping rod 402 is installed inside the second spring 401, and the base plate 403 is fixedly installed at the bottom of the front and rear second springs 401. A rubber pad is installed at the bottom of the base plate 403. When the lifting box 201 contacts the ground, the base plate 403 compresses the second spring 401 and the damping rod 402, thereby reducing the collision between the lifting box 201 and the ground. At the same time, the rubber pad prevents the base plate 403 from having a hard collision with the ground, thus improving the service life of the base plate 403.

[0032] In use, the building materials are placed in the lifting box 201, and then the motor 301 is started to drive the rotating shaft 302 to rotate. Under the action of the transmission component 303, the rotating rod 305 and the winding roller 306 are driven to rotate, and the rope 307 is wound up. Thus, the lifting box 201 is pulled up and down along the guide rod 310 through the rope 307 to lift the building. When any end of the rope 307 is damaged, the connecting block 203 moves downward under the action of gravity and squeezes the pressure sensor 204. When the pressure sensor 204 is compressed, the electronic switch inside the pressure sensor 204 closes, so that the power supply 210 is connected to energize the electromagnetic block 209, so that the electromagnetic block 209 has the same magnetism as the magnet 208. Due to the repulsion of like poles, the left and right clamping plates 206 can move linearly along the limiting block 205, so that the clamping plates 206 enter between the two adjacent clamping blocks 211, which acts as a brake on the lifting box 201 and prevents the lifting box 201 from falling further.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A lifting device for prefabricated construction, comprising a support (1), characterized in that: The support (1) is internally provided with a lifting device, which comprises a protection mechanism, a lifting mechanism and a collision prevention mechanism; The protection mechanism is arranged inside the support (1), the lifting mechanism is arranged on the top of the support (1), and the collision prevention mechanism is arranged inside the support (1); The protection mechanism comprises a lifting box (201), a mounting block (202), a connecting block (203), a pressure sensor (204), a limiting block (205), a clamping plate (206), a first spring (207), a magnet (208), an electromagnetic block (209), a power supply (210) and a clamping block (211), the lifting box (201) is arranged inside the support (1), the mounting block (202) is fixedly installed on the left and right sides of the lifting box (201), the connecting block (203) is slidingly connected inside the mounting block (202) and extends above the mounting block (202) at the upper end, the pressure sensor (204) is fixedly installed at the bottom of the mounting block (202), the limiting block (205) is fixedly installed at the left and right ends of the bottom of the lifting box (201), the clamping plate (206) is slidingly connected inside the limiting block (205), the first spring (207) is fixedly installed at the upper and lower ends of one side of the limiting block (205), the magnet (208) is fixedly installed at one end of the clamping plate (206), the electromagnetic block (209) is fixedly installed on the left and right sides of the bottom of the lifting box (201), the power supply (210) is fixedly installed on the bottom of the lifting box (201), and the clamping block (211) is fixedly installed on the left and right sides of the inner wall of the support (1).

2. The assembly type building lifting device according to claim 1, characterized in that: The pressure sensor (204) is electrically connected with the power supply (210), the power supply (210) is connected with the electromagnetic block (209) through wires, and the magnet (208) has the same magnetism as the electromagnetic block (209).

3. The assembly type building lifting device according to claim 1, characterized in that: The number of clamping blocks (211) is multiple, and the distance between adjacent clamping blocks (211) is greater than the thickness of the clamping plate (206).

4. The assembly type building lifting device according to claim 1, characterized in that: The lifting mechanism comprises a motor (301), a rotating shaft (302), a transmission member (303), a fixed block (304), a rotating rod (305), a winding roller (306), a rope (307), a metal ring (308), a side ear (309) and a guide rod (310), the motor (301) is fixedly installed on the top of the support (1), the rotating shaft (302) is fixedly installed at the output end of the rotating shaft (302), the transmission member (303) is installed at the left end of the rotating shaft (302), the fixed block (304) is fixedly installed on the left and right sides of the top of the support (1), the rotating rod (305) is rotatably connected inside the left and right two fixed blocks (304), the winding roller (306) is fixedly installed at the left and right ends of the rotating rod (305), the rope (307) is wound inside the winding roller (306), the metal ring (308) is fixedly installed at the bottom of the rope (307), the side ear (309) is fixedly installed outside the lifting box (201), and the guide rod (310) is fixedly installed around the inside of the support (1).

5. The assembly type building lifting device according to claim 4, characterized in that: The metal ring (308) is connected with the upper end of the connecting block (203), and the guide rod (310) penetrates the side lug (309).

6. The assembly type building lifting device according to claim 1, characterized in that: The anti-collision mechanism comprises second springs (401), damping rods (402) and bottom plates (403), the second springs (401) are fixedly installed around the bottom of the lifting box (201), the damping rods (402) are installed on the inner sides of the second springs (401), and the bottom plates (403) are fixedly installed at the bottoms of the two second springs (401) in front and back.

7. The assembly type building lifting device according to claim 6, characterized in that: Rubber pads are installed at the bottom of the bottom plates (403).

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