Lifting device for constructional engineering

Abstract

The utility model discloses a hoisting device for constructional engineering, which belongs to the technical field of hoisting devices and comprises two bridge frames, the upper ends of the two bridge frames are jointly and movably connected with a hoisting mechanism, and the lower portion of the hoisting mechanism is connected with a material body in a magnetic attraction mode. The device can be fixed to two steel beam frames, the device can be adjusted according to the distance between the two steel beam frames, the stability of the device during use is guaranteed, bridge materials can be positioned through cooperation of the lifting assembly and the adjusting piece, the position of the fixed materials can be adjusted according to the sizes of the materials, and the device is convenient to use. And materials can be better fixed, the function that bridge frames with different widths can be conveniently used can be achieved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and more specifically, to lifting devices for construction projects. Background Technology

[0002] Construction engineering refers to the engineering entity formed by the construction of various buildings and their ancillary facilities, as well as the installation of supporting lines, pipelines, and equipment. During construction, lifting devices are used. Traditional lifting devices use a motor to rotate a boom, which in turn drives a disc to rotate, which in turn drives a rope. The rope is wound inside a groove and slides through a first through-hole and then through a second through-hole. The top of the rope is knotted, and the rope is then locked in place with the second through-hole. This lock then drives a fixing block, which in turn connects the work plate to the connecting rod. The motor drives the disc to rotate, the rope moves the work plate, and the connecting rod moves the electromagnet. When the electromagnet is energized and comes into close contact with the material, it generates an attractive force. Compared to existing technologies, this device is smaller and can be used in confined spaces. Its simpler structure saves costs. The electromagnet effectively lifts materials, and in case of malfunction, it allows for timely repair. Furthermore, the device has auxiliary structures that effectively prevent large material swaying during lifting, improving its efficiency.

[0003] However, the following defects still exist in the specific implementation process: when the device is used to lift bridge materials in construction projects, it cannot be fixed between two bridge frames of different widths, which has limitations.

[0004] Therefore, a lifting device for construction engineering is proposed to address the above-mentioned problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a construction engineering lifting device that can be used for bridge frames of different widths.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] The construction lifting device includes two bridge frames, with a lifting mechanism movably connected to the upper ends of the two bridge frames, and a material body magnetically connected to the lower part of the lifting mechanism.

[0008] Furthermore, the lifting mechanism includes a connecting plate, on the upper end of which two mounting strips are fixedly connected. The ends of the two mounting strips that are close to each other are fixedly connected to a motor. The output end of the motor is fixedly connected to a rotating shaft via a coupling. A steel rope is wound around the outer surface of the rotating shaft. A lifting assembly is fixedly connected to the lower end of the steel rope. A positioning assembly is fixedly connected to the lower end of the connecting plate.

[0009] Furthermore, the positioning assembly includes two positioning plates, the upper ends of which are fixedly connected to the lower end of the connecting plate. A support plate is fixedly connected to the rear end of the positioning plate located on the rear side. A second motor is fixedly connected to the upper end of the support plate. A first bidirectional lead screw is fixedly connected to the output end of the second motor via a coupling. Two clamping plates are threadedly connected to the outer surface of the first bidirectional lead screw. Two positioning rods are slidably connected to the inner surfaces of the two clamping plates. A conduit is fixedly connected to the inner surface of the first bidirectional lead screw. The outer surface of the conduit is fixedly connected to the inner surface of the connecting plate. The front and rear ends of the two positioning rods are respectively fixedly connected to the ends of the two positioning plates that are close to each other.

[0010] Furthermore, the lifting assembly includes a connecting block, the upper end of which is fixedly connected to the lower end of a steel rope, a second lead screw fixedly connected to the lower end of the connecting block, an electromagnet fixedly connected to the lower end of the second lead screw, an adjusting component threadedly connected to the outer surface of the second lead screw, four second steel ropes fixedly connected to the outside of the adjusting component, an electromagnet fixedly connected to the lower end of each of the four second steel ropes, and a magnetically attracted connection between the lower ends of the four second electromagnets and the upper end of the material body.

[0011] Furthermore, the adjusting component includes a movable column, the outer surface of which is provided with a sliding groove, the inner cavity of which is fixedly connected to two bearings, the outer surfaces of which are jointly fixedly connected to four connectors, the outer surfaces of which are slidably connected to the inner surface of the sliding groove, the upper end of which is provided with an internal threaded hole, and the upper end of which is fixedly connected to a rotating handle.

[0012] Furthermore, the inner surface of the internal threaded hole is threadedly connected to the outer surface of the lead screw.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This solution uses a lifting mechanism in conjunction with positioning components to fix the device to two steel beams during bridge construction. The device can be adjusted according to the distance between the two steel beams, ensuring its stability during use. Through the cooperation of the lifting components and adjusting parts, bridge materials can be positioned, and the position of the fixed materials can be adjusted according to their size, thus better securing the materials and improving the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the positioning component of this utility model;

[0018] Figure 4 This is a schematic diagram of the lifting assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the adjusting component of this utility model.

[0020] Explanation of the labels in the diagram:

[0021] 1. Bridge frame; 2. Lifting mechanism; 21. Connecting plate; 22. Mounting strip; 23. Motor 1; 24. Rotating shaft; 25. Steel rope 1; 26. Positioning assembly; 261. Positioning plate; 262. Support plate; 263. Motor 2; 264. Double-acting lead screw 1; 265. Clamping plate; 266. Positioning rod; 267. Conduit; 27. Lifting assembly; 271. Connecting block; 272. Lead screw 2; 273. Electromagnet 1; 274. Adjusting component; 2741. Moving column; 2742. Slide groove; 2743. Bearing; 2744. Connector; 2745. Internal threaded hole; 2746. Rotating handle; 275. Steel rope 2; 276. Electromagnet 2; 3. Material body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-5 The construction lifting device includes two bridge frames 1, with a lifting mechanism 2 movably connected to the upper ends of the two bridge frames 1, and a material body 3 magnetically connected to the lower part of the lifting mechanism 2.

[0027] This solution involves fixing the lifting mechanism 2 onto two bridge frames 1 and securing the material body 3. Once secured, the lifting mechanism 2 can be used to lift the material body 3.

[0028] Please see Figure 2-5 The lifting mechanism 2 includes a connecting plate 21. Two mounting strips 22 are fixedly connected to the upper end of the connecting plate 21. A motor 23 is fixedly connected to one end of the two mounting strips 22 that are close to each other. A rotating shaft 24 is fixedly connected to the output end of the motor 23 through a coupling. A steel rope 25 is wound around the outer surface of the rotating shaft 24. A lifting assembly 27 is fixedly connected to the lower end of the steel rope 25. A positioning assembly 26 is fixedly connected to the lower end of the connecting plate 21.

[0029] The positioning assembly 26 includes two positioning plates 261. The upper ends of both positioning plates 261 are fixedly connected to the lower end of the connecting plate 21. The rear end of the positioning plate 261 is fixedly connected to a support plate 262. The upper end of the support plate 262 is fixedly connected to a second motor 263. The output end of the second motor 263 is fixedly connected to a first bidirectional lead screw 264 via a coupling. The outer surface of the first bidirectional lead screw 264 is threaded with two clamping plates 265. The inner surfaces of the two clamping plates 265 are slidably connected to two positioning rods 266. The inner surface of the first bidirectional lead screw 264 is fixedly connected to a conduit 267. The outer surface of the conduit 267 is fixedly connected to the inner surface of the connecting plate 21. The front and rear ends of the two positioning rods 266 are respectively fixedly connected to the ends of the two positioning plates 261 that are close to each other.

[0030] The lifting assembly 27 includes a connecting block 271. The upper end of the connecting block 271 is fixedly connected to the lower end of the first steel rope 25. The lower end of the connecting block 271 is fixedly connected to a second lead screw 272. The lower end of the second lead screw 272 is fixedly connected to an electromagnet 273. An adjusting component 274 is threadedly connected to the outer surface of the second lead screw 272. Four second steel ropes 275 are fixedly connected to the outside of the adjusting component 274. The lower ends of the four second steel ropes 275 are all fixedly connected to electromagnets 276. The lower ends of the four electromagnets 276 are all magnetically connected to the upper end of the material body 3.

[0031] The adjusting component 274 includes a movable column 2741, a sliding groove 2742 on the outer surface of the movable column 2741, two bearings 2743 fixedly connected to the inner cavity of the sliding groove 2742, four connectors 2744 fixedly connected to the outer surfaces of the two bearings 2743, and the outer surfaces of the four connectors 2744 are slidably connected to the inner surface of the sliding groove 2742. An internal threaded hole 2745 is opened at the upper end of the movable column 2741, and the inner surface of the internal threaded hole 2745 is threadedly connected to the outer surface of the lead screw 272. A rotating handle 2746 is fixedly connected to the upper end of the movable column 2741.

[0032] This solution starts the second motor 263, which causes the first bidirectional lead screw 264 to rotate on the inner surface of the two positioning plates 261 under the action of the second motor 263. Since the two threads on the outer surface of the first bidirectional lead screw 264 are opposite, when the first bidirectional lead screw 264 rotates, it will drive the two clamping plates 265 to move inward on the outer surface of the two positioning rods 266 at the same time, so that the two clamping plates 265 can be tightly clamped on the two bridge frames 1.

[0033] Then, start motor 23, so that rotating shaft 24 rotates under the action of motor 23, so that steel rope 25 can be released downward, thereby allowing lifting assembly 27 to fall, so that electromagnet 273 is located in the center of material body 3 and energized, so that electromagnet 273 is tightly attracted to material body 3. Then, four electromagnets 276 are attracted to the four corners of material body 3 respectively, and the four electromagnets 276 are also energized, so that the four electromagnets 276 are also tightly attracted to material body 3.

[0034] If the length of the four steel ropes 275 is insufficient to allow the four electromagnets 276 to adhere to the four corners of the material body 3, the handle 2746 can be rotated counterclockwise. Because the inner surface of the internal threaded hole 2745 is threadedly connected to the outer surface of the lead screw 272, when the handle 2746 rotates with the moving column 2741, the moving column 2741 will move downward on the outer surface of the lead screw 272 due to the engagement of the internal threaded hole 2745. This ensures that the four steel ropes 275 remain taut. If the four steel ropes 275 are slack when the four electromagnets 276 are adhered to the four corners of the material body 3, the handle 2746 can be rotated clockwise to tighten the four steel ropes 275, thus improving the stability of the material body 3 when it is lifted.

[0035] Restart motor 23 and rotate it in reverse so that the released steel rope 25 can be retrieved, which will pull the connecting block 271 and the lead screw 272 upward, thereby lifting the material body 3.

[0036] It should be noted that the specific installation methods, circuit connection methods, and control methods of motor 1 23, motor 2 263, electromagnet 1 273, and electromagnet 2 276 in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0037] Working principle: During bridge construction, a device is needed to lift the material body 3 for easy construction. When using the device, first start motor 263, causing the bidirectional lead screw 264 to rotate. This rotation drives the two clamping plates 265 to move inwards on the outer surfaces of the two positioning rods 266, ensuring the clamping plates 265 are firmly secured to the two bridge frames 1. Then, start motor 23, causing the rotating shaft 24 to rotate, allowing the steel cable 25 to be released downwards, thus lowering the lifting assembly 27. Magnet 273 is located at the center of the material body 3 and is energized, causing it to adhere tightly to the material body 3. Then, four electromagnets 276 are attached to the four corners of the material body 3 and energized, causing them to adhere tightly to the material body 3 as well. Motor 23 is then started again and rotated in the reverse direction, allowing the released steel rope 25 to be retrieved. This pulls the connecting block 271 and the lead screw 272 upward, thus lifting the material body 3.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. Construction hoisting device comprising two bridge frames (1), characterised in that: Two upper ends of the bridge frames (1) are movably connected with a lifting mechanism (2), and the lower part of the lifting mechanism (2) is magnetically connected with a material body (3).

2. A construction hoisting device according to claim 1, characterised in that: The lifting mechanism (2) comprises a connecting plate (21), the upper end of the connecting plate (21) is fixedly connected with two mounting strips (22), the ends of the two mounting strips (22) close to each other are fixedly connected with a motor (23), the output end of the motor (23) is fixedly connected with a rotating shaft (24) through a shaft coupling, the outer surface of the rotating shaft (24) is wound with a steel rope (25), the lower end of the steel rope (25) is fixedly connected with a lifting assembly (27), and the lower end of the connecting plate (21) is fixedly connected with a positioning assembly (26).

3. A construction hoisting device according to claim 2, characterised in that: The positioning assembly (26) comprises two positioning plates (261), the upper ends of the two positioning plates (261) are fixedly connected with the lower end of the connecting plate (21), the rear end of the positioning plate (261) on the rear side is fixedly connected with a supporting plate (262), the upper end of the supporting plate (262) is fixedly connected with a motor (263), the output end of the motor (263) is fixedly connected with a bidirectional screw rod (264) through a shaft coupling, the outer surface of the bidirectional screw rod (264) is threadedly connected with two clamping plates (265), the inner surfaces of the two clamping plates (265) are movably connected with two positioning rods (266), the inner surface of the bidirectional screw rod (264) is fixedly connected with a wire tube (267), the outer surface of the wire tube (267) is fixedly connected with the inner surface of the connecting plate (21), and the front and rear ends of the two positioning rods (266) are fixedly connected with the ends of the two positioning plates (261) close to each other.

4. A construction hoisting device according to claim 2, characterised in that: The lifting assembly (27) comprises a connecting block (271), the upper end of the connecting block (271) is fixedly connected with the lower end of the steel rope (25), the lower end of the connecting block (271) is fixedly connected with a screw rod (272), the lower end of the screw rod (272) is fixedly connected with an electromagnet (273), the outer surface of the screw rod (272) is threadedly connected with an adjusting piece (274), the outer surface of the adjusting piece (274) is fixedly connected with four steel ropes (275), the lower ends of the four steel ropes (275) are fixedly connected with electromagnets (276), and the lower ends of the four electromagnets (276) are magnetically connected with the upper end of the material body (3).

5. A construction hoisting device according to claim 4, characterised in that: The adjusting piece (274) comprises a moving column (2741), the outer surface of the moving column (2741) is provided with a sliding groove (2742), the inner cavity of the sliding groove (2742) is fixedly connected with two bearings (2743), the outer surfaces of the two bearings (2743) are fixedly connected with four connecting heads (2744), the outer surfaces of the four connecting heads (2744) are slidably connected with the inner surfaces of the sliding grooves (2742), the upper end of the moving column (2741) is provided with an internally-threaded hole (2745), and the upper end of the moving column (2741) is fixedly connected with a handle (2746).

6. A construction hoisting device according to claim 5, characterised in that: The inner surface of the internally-threaded hole (2745) is threadedly connected with the outer surface of the screw rod (272).

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