Safety protection device of building construction elevator

Abstract

The utility model relates to the field of building construction material lifting, and discloses a safety protection device of a building construction hoister, which comprises a bottom support plate for bottom support, support plates are fixedly connected to two sides of the top end of the bottom support plate, and a lifting frame body is attached to the inner sides of the support plates. The two sides of the lifting frame body are connected with the inner sides of the supporting plates through limiting mechanisms so as to achieve stability of the lifted height of the device, mounting plates are fixedly connected to the upper portions of the outer sides of the supporting plates, mounting frames are fixedly connected to the two sides of the top ends of the mounting plates, and winding rollers are rotationally connected to the inner sides of the mounting frames. A steel cable pull rope is wound around the outer portion of the winding roller, and the bottom ends of the steel cable pull rope are correspondingly and fixedly connected to the two sides of the top end of the lifting frame body correspondingly. According to the hanging basket lifting device, the lifting frame body is limited, the stability of lifting the hanging basket to a high position is improved, falling of materials is avoided, direct falling is avoided, and the using safety of the device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of construction material hoisting, and in particular to a safety protection device for a construction hoist. Background Technology

[0002] Construction hoists are vertical transportation equipment used on construction sites. Driven by an electric motor, they move up and down along guide rails on the outside of the building to transport workers, materials, and small construction equipment to different floors. They are an indispensable transportation tool in the construction of high-rise buildings.

[0003] Hoists typically use steel cables to pull the basket upwards, causing it to move upwards. When the basket reaches a high position, it may sway slightly during operation. This swaying can cause the materials inside the basket to become unstable, increasing the risk of materials falling out in the air. Additionally, the basket may fall during operation, which is extremely dangerous. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a safety protection device for a construction hoist, which improves the stability of the hanging basket when it is lifted to a high place and ensures the safety of the device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A safety protection device for a construction hoist includes:

[0007] A bottom support plate is used for bottom support. Support plates are fixedly connected to both top sides of the bottom support plate. A lifting frame is attached to the inner side of the support plate. Both sides of the lifting frame are connected to the inner side of the support plate through a limiting mechanism to achieve stability of the device when raised. Mounting plates are fixedly connected to the upper outer side of the support plate. Mounting frames are fixedly connected to both top sides of the mounting plates. A winding roller is rotatably connected to the inner side of the mounting frame. A steel cable is wound around the outside of the winding roller. The bottom ends of the steel cable are fixedly connected to the top sides of the lifting frame respectively.

[0008] Positioning plates for sliding on both sides of the bottom of the lifting frame are provided. The inner side of the support plate has two or more positioning slots. The outer dimensions of the positioning plate are adapted to the inner dimensions of the positioning slots. The lower interior of the lifting frame is connected to the inner side of the positioning plate through a turntable pusher to enable the positioning plate to unfold and position the lifting frame.

[0009] Furthermore, the turntable pusher includes a rotating disk located inside the lower side of the lifting frame, with fixed columns fixedly connected to both sides of the rotating disk, and external push rods rotatably connected to the outside of the fixed columns. Fixed seats are fixedly connected to the inner side of the positioning plate, and the outer sides of the external push rods are rotatably connected to the inside of the fixed seats.

[0010] Furthermore, the limiting mechanism includes two connecting blocks located on both sides of the lifting frame. A polygonal strip is fixedly connected to the outer side of each connecting block. Two limiting grooves are opened on the inner side of each support plate. The outer side of the polygonal strip is slidably connected to the inside of the limiting groove.

[0011] Furthermore, each of the support plates is rotatably connected to a traction roller at its top center, and the outer part of the steel cable is wrapped around the outside of the traction roller.

[0012] Furthermore, servo motors are fixedly connected to the outer side of the front mounting bracket, and the drive end of the servo motor is fixedly connected to the front end of the take-up roller.

[0013] Furthermore, a drive motor is fixedly connected inside the bottom slot of the lifting frame, and a rotating shaft is fixedly connected to the drive end of the drive motor. The top end of the rotating shaft passes through the interior of the lifting frame and is fixedly connected to the middle of the rotating disk.

[0014] Furthermore, a speed sensor is fixedly connected to the top right side of the lifting frame, and the speed sensor is electrically connected to the drive motor.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the external steel cable is wound up by rotating the two side winding rollers outwards simultaneously. The steel cable is retracted vertically upwards by the traction rollers. The lifting frame is limited by the multiple faces of the polygonal strip, which improves the stability of the hanging basket when it is lifted to a high place and prevents the material from falling.

[0017] 2. In this utility model, the speed of the lifting frame is determined by detecting the inner wall of the support plate through a speed sensor. When the speed exceeds the range, the rotating disk rotates and pushes the positioning plate outward through the outer push rod to insert it into the positioning slot, thereby completing the positioning of the lifting frame from falling and avoiding direct fall, thus ensuring the safety of the device. Attached Figure Description

[0018] Figure 1 This is an overall drawing of a safety protection device for a construction hoist proposed in this utility model;

[0019] Figure 2This utility model provides a diagram of the lifting frame mechanism for a safety protection device of a construction hoist.

[0020] Figure 3 This utility model provides an internal view of the lifting frame of a safety protection device for a construction hoist.

[0021] Figure 4 Detailed internal view of the lifting frame of a safety protection device for a construction hoist proposed in this utility model;

[0022] Figure 5 This utility model presents a diagram of the support plate mechanism for a safety protection device of a construction hoist.

[0023] Legend:

[0024] 1. Bottom support plate; 2. Support plate; 3. Lifting frame; 4. Mounting plate; 5. Servo motor; 6. Mounting frame; 7. Take-up roller; 8. Steel cable pull rope; 9. Traction roller; 10. Speed ​​sensor; 11. Connecting block; 12. Polygonal strip; 13. Positioning plate; 14. Drive motor; 15. Rotary disk; 16. External push rod; 17. Fixed seat; 18. Fixed column; 19. Rotating shaft; 20. Limiting groove; 21. Positioning slot. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of a safety protection device for a construction hoist, comprising: a bottom support plate 1 for bottom support; support plates 2 fixedly connected to both sides of the top of the bottom support plate 1; a lifting frame 3 attached to the inner side of the support plate 2; both sides of the lifting frame 3 connected to the inner side of the support plate 2 via limiting mechanisms to achieve stability at the raised height of the device; mounting plates 4 fixedly connected to the upper outer side of the support plate 2; mounting frames 6 fixedly connected to both sides of the top of the mounting plates 4; a winding roller 7 rotatably connected to the inner side of the mounting frame 6; and a steel cable rope 8 wound around the outer side of the winding roller 7. The bottom ends of the steel cable pull rope 8 are respectively fixedly connected to the top two sides of the lifting frame 3. The limiting mechanism includes two connecting blocks 11 located on both sides of the lifting frame 3. Polygonal strips 12 are fixedly connected to the outer side of each connecting block 11. Two limiting grooves 20 are opened on the inner side of each support plate 2. The outer side of the polygonal strips 12 is slidably connected to the inside of the limiting grooves 20. A traction roller 9 is rotatably connected to the top center of each support plate 2. The outer side of the steel cable pull rope 8 is wound around the outer side of the traction roller 9. A servo motor 5 is fixedly connected to the outer side of each front mounting frame 6. The drive end of the servo motor 5 is fixedly connected to the front end of the winding roller 7.

[0027] The material to be lifted is properly placed into the lifting frame 3. Then, the servo motors 5 on both sides are activated simultaneously, driving the winding rollers 7 to rotate outwards. As the winding rollers 7 rotate, the steel cable rope 8 is gradually wound up, applying an upward pulling force to the lifting frame 3 from the bottom. The traction rollers 9 on both sides precisely restrict the steel cable rope 8 to ensure the verticality of the upward pulling force, thereby achieving a smooth rise of the lifting frame 3. During this process, the polygonal strips 12 on both sides of the lifting frame 3 are tightly fitted into the interior of the limiting groove 20. The multiple contact surfaces of the polygonal strips further enhance the limiting effect of the frame, ensuring the stability of the hanging basket during high-altitude operations, effectively preventing material from falling off, and ensuring operational safety.

[0028] Reference Figure 1 , Figure 3 and Figure 4The positioning plate 13 is used to slide on both sides of the bottom of the lifting frame 3. The inner side of the support plate 2 has two or more positioning slots 21. The outer dimensions of the positioning plate 13 are adapted to the inner dimensions of the positioning slots 21. The lower interior of the lifting frame 3 is connected to the inner side of the positioning plate 13 through a turntable pusher to enable the positioning plate 13 to unfold and position the lifting frame 3. The turntable pusher includes a rotating disk 15 located inside the lower interior of the lifting frame 3. The inner sides of the rotating disk 15 are fixedly connected to fixing posts 18. The outer sides of the fixing posts 18 are all rotating. An external push rod 16 is dynamically connected, and a fixed seat 17 is fixedly connected to the inner side of the positioning plate 13. The outer side of the external push rod 16 is rotatably connected to the inside of the fixed seat 17. A drive motor 14 is fixedly connected inside the bottom slot of the lifting frame 3. A rotating shaft 19 is fixedly connected to the drive end of the drive motor 14. The top end of the rotating shaft 19 passes through the inside of the lifting frame 3 and is fixedly connected to the middle of the rotating disk 15. A speed sensor 10 is fixedly connected to the right side of the top end of the lifting frame 3. The speed sensor 10 is electrically connected to the drive motor 14.

[0029] During the movement of the lifting frame 3, the speed sensor 10 closely monitors the inner wall of the support plate 2 to accurately determine the running speed of the frame. Once a sudden loss of speed occurs, the speed sensor 10 immediately sends a signal to the drive motor 14, triggering the rotation of the rotating shaft 19, which in turn drives the rotating disk 15 to rotate. This rotational action applies an outward pushing force to the outer push rods 16 on both sides, causing the positioning plates 13 on both sides to pop outward simultaneously. At the same time, the polygonal contact surface of the polygonal strip 12 fits tightly with the inside of the limiting slide groove 20 to ensure that the lifting frame 3 remains parallel. After the positioning plates 13 on both sides pop out, they are precisely inserted into the positioning slots 21 at the same height, achieving precise positioning of the lifting frame 3 and effectively preventing it from falling directly, thus ensuring the safety and reliability of the device.

[0030] Working principle: The material to be lifted is placed inside the lifting frame 3. At the same time, the servo motors 5 on both sides are started, rotating the winding rollers 7 simultaneously. Both winding rollers 7 rotate outwards, and the rotation of the winding rollers 7 winds up the steel cable rope 8. The bottom of the steel cable rope 8 generates an upward pulling force on the lifting frame 3, while the traction rollers 9 on both sides restrict the steel cable rope 8, ensuring that the steel cable rope 8 is pulled vertically, thereby lifting the lifting frame 3 upwards. The polygonal strips 12 on both sides of the lifting frame 3 fit into the inside of the limiting grooves 20. The multiple faces of the polygonal strips 12 further enhance the limiting of the lifting frame 3, ensuring the stability of the hanging basket at a height. During the movement of the lifting frame 3, the speed sensor 10 observes the inner wall of the support plate 2 to determine its own running speed. When the lifting frame 3 suddenly stalls during operation, the speed sensor 10 sends a signal to the drive motor 14, thereby rotating the rotating shaft 19, which in turn rotates the rotating disk 15, thereby generating an outward pushing force on the outer push rods 16 on both sides. This causes the positioning plates 13 on both sides to pop outward simultaneously, and through the polygonal contact limit groove 20 of the polygonal strip 12, the parallelism of the lifting frame 3 is ensured. The positioning plates 13 on both sides pop out and insert into the positioning slots 21 at the same height, completing the positioning of the lifting frame 3.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety guard for a construction hoist, characterised in that, The utility model relates to a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including:

2. A safety shield for a building construction hoist according to claim 1, wherein: The utility model discloses a lifting device for the bottom support of the device, including:

3. A safety shield for a building construction hoist according to claim 1, wherein: The utility model discloses a lifting device for the bottom support of the device, including:

4. A safety shield for a construction hoist according to claim 1, characterised in that: The utility model discloses a lifting device for the bottom support of the device, including:

5. A safety shield for a construction hoist according to claim 1, wherein: The utility model discloses a lifting device for the bottom support of the device, including:

6. A safety shield for a construction hoist according to claim 1, wherein: The utility model discloses a lifting device for the bottom support of the device, including:

7. A safety shield for a building construction hoist according to claim 6 wherein: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the device, including: The utility model discloses a lifting device for the bottom support of the

Images