Intelligent anti-pinch device applied to construction hoist

By designing intelligent anti-clip devices on the construction elevator, using drive components and pressure sensors and other components, the pinch problem when the construction elevator is closed is solved, and the smooth door operation and emergency escape function is achieved, which improves safety and stability.

CN223239516UActive Publication Date: 2025-08-19SHANDONG SHENGSHIHENG MASCH MFG CO LTD
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Patent Information

Application Number
CN202422268498.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2025-08-19
Estimated Expiration
2034-09-18

AI Technical Summary

Technical Problem

The existing construction lifts are prone to pinch injuries to workers during the closing process, and lack effective anti-pinch devices.

Method used

An intelligent anti-clip device is designed, including drive components, circular gears, protective doors, pressure sensors and alarms. Through the cooperation of springs and dampers, the doors are ensured to move smoothly and trigger shutdowns and alarms when obstacles are detected.

Benefits of technology

Effectively prevent pinch accidents, improve the safety of the construction elevator, and provide escape routes in emergencies, improving the stability and safety of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of intelligent elevators, and discloses an intelligent anti-pinch device applied to a construction elevator, which comprises a compartment body, the front side and the rear side of the compartment body are fixedly connected with accommodating shells, and the left ends and the right ends of the far sides of the two accommodating shells are fixedly connected with mounting plates; and the tops of the two mounting plates are fixedly connected with driving assemblies used for providing power, the exteriors of the driving assemblies are fixedly connected with circular gears, sliding grooves are formed in the left side and the right side of the containing shell, guide rods are fixedly connected into the sliding grooves, and protective doors are slidably connected to the exteriors of the guide rods. According to the protective door, through the arrangement of the spring and the damper, the protective door can ascend or descend more stably, when a foreign matter enters the bottom of the containing shell, the pressure plate can press the pressure sensor, then the alarm can give an alarm through the pressure sensor, and the device is shut down.
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Description

Technical Field

[0001] The utility model relates to the field of intelligent elevators, and in particular to an intelligent anti-pinch device used on a construction elevator. Background Art

[0002] Construction hoists are common equipment on construction sites. They are mainly used to transport people and materials vertically or diagonally to improve construction efficiency and safety. Construction hoists are used to transport workers and materials to different floors, saving time and labor costs. Construction hoists facilitate workers to carry out exterior wall construction and maintenance safely and efficiently. Construction hoists provide height and stability to facilitate the installation of large glass curtain walls.

[0003] However, when some existing construction elevators are in use, after a worker enters the interior of the construction elevator, the door of the construction elevator needs to be closed. During the closing process, the worker does not fully enter the interior of the device, which may cause pinching injuries to the worker's body. Therefore, an intelligent anti-pinch device applied to the construction elevator is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an intelligent anti-pinch device applied to a construction elevator, aiming to improve the problem in the prior art that the construction elevator may cause pinching injuries to the workers during the door closing process.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] As a further description of the above technical solution:

[0008] The driving assembly includes a motor, the bottom of the motor is fixedly connected to the top of the mounting plate, the output end of the motor is fixedly connected to the output shaft, and the middle part of the circular gear is fixedly connected to the outside of the output shaft;

[0009] As a further description of the above technical solution:

[0010] An alarm is fixedly connected to the left end of the front inner wall of the compartment, a floor pressing plate is provided in the middle of the front inner wall of the compartment, a ladder is fixedly connected to the right end of the front inner wall of the compartment, a flip cover is provided on the right side of the top of the compartment, and ventilation windows are provided on the left and right parts of the rear side of the compartment;

[0011] As a further description of the above technical solution:

[0012] The stabilizing assembly includes a damper, the bottom of the damper is fixedly connected to the bottom inner wall of the cavity, and the top of the damper is fixedly connected to the bottom of the sliding plate;

[0013] As a further description of the above technical solution:

[0014] One end of the spring is fixedly connected to the bottom of the sliding plate, and the other end of the spring is fixedly connected to the bottom inner wall of the cavity;

[0015] As a further description of the above technical solution:

[0016] The circular gear and the teeth are meshed and connected, and the top of the force-bearing plate passes through the top inner wall of the cavity and extends outward;

[0017] As a further description of the above technical solution:

[0018] The bottom of the force-bearing plate is slidably connected to the interior of the cavity, and the outer portion of the circular gear is rotatably connected to the interior of the sliding groove;

[0019] As a further description of the above technical solution:

[0020] The left and right sides of the protective door are respectively slidably connected to the inside of the two sliding grooves, and the bottom of the protective door is in contact with the top of the force-bearing plate.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the provision of springs and dampers enables the protective door to rise or fall more smoothly, and when foreign matter enters the bottom of the containment shell, the pressure plate presses the pressure sensor, which in turn causes the alarm to sound an alarm and shuts down the device.

[0023] 2. In the present invention, when the device fails and the staff inside need to escape, they can climb up the ladder and then open the flip cover to allow the staff to escape, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of an intelligent anti-pinch device applied to a construction elevator proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of a sliding groove of an intelligent anti-pinch device applied to a construction hoist proposed by the utility model;

[0026] Figure 3 for Figure 2 A magnified view of point A;

[0027] Figure 4 This is a schematic structural diagram of the cavity of an intelligent anti-pinch device applied to a construction elevator proposed in the utility model;

[0028] Figure 5 This is a structural schematic diagram of the compartment of an intelligent anti-pinch device applied to a construction elevator proposed in the utility model.

[0029] Legend:

[0030] 1. Box body; 2. Containment shell; 3. Mounting plate; 4. Motor; 5. Output shaft; 6. Circular gear; 7. Sliding groove; 8. Guide rod; 9. Protective door; 10. Teeth; 11. Cavity; 12. Sliding plate; 13. Force plate; 14. Pressure plate; 15. Pressure sensor; 16. Damper; 17. Spring; 18. Ladder; 19. Alarm; 20. Floor button; 21. Flip cover; 22. Ventilation window. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 - Figure 3The utility model provides an embodiment: an intelligent anti-pinch device for a construction hoist, comprising a car body 1, which is the main structure of the construction hoist and provides a carrier space for passengers and materials. The front and rear sides of the car body 1 are fixedly connected to a containing shell 2, and the left and right ends of the two containing shells 2 are fixedly connected to a mounting plate 3 on the far side. The tops of the two mounting plates 3 are fixedly connected to a driving assembly for providing power. The mounting plates 3 are located on the left and right ends of the far side of the two containing shells 2, providing a stable mounting platform for the motor 4 and other driving components. The outside of the driving assembly is fixedly connected to a circular gear 6. The drive assembly includes a motor 4, the bottom of which is fixedly connected to the top of the mounting plate 3. The motor 4 is the core of the drive assembly and is responsible for providing power so that the protective door 9 can be opened or closed quickly to prevent pinching accidents. The output end of the motor 4 is fixedly connected to the output shaft 5, and the middle part of the circular gear 6 is fixedly connected to the outside of the output shaft 5. The motor 4 is used to drive the circular gear 6 to control the opening and closing of the protective door 9. The output shaft 5 extends from the motor 4 and is directly connected to the circular gear 6 to transmit power. The circular gear 6 is installed on the output shaft 5 and engages with the teeth 10 on the protective door 9 to ensure that the protective door 9 can be opened and closed smoothly and quickly.

[0033] The left and right sides of the containment shell 2 are provided with sliding grooves 7, and the inside of the sliding grooves 7 is fixedly connected to a guide rod 8, and the outside of the guide rod 8 is slidingly connected to a protective door 9. The sliding grooves 7 are provided on both sides of the containment shell 2, and the built-in guide rods 8 ensure that the guidance of the protective door 9 is accurate when opening and closing to prevent deviation. The left and right sides of the outside of the protective door 9 are fixedly connected with multiple teeth 10. The protective door 9 is designed as a sturdy metal door with multiple teeth 10, which mesh with the circular gear 6. The design of the door ensures a quick response under any circumstances to prevent pinching accidents. A cavity 11 is provided at the bottom of the containment shell 2, and a sliding plate 12 is slidingly connected to the inside of the cavity 11. The top of the sliding plate 12 is fixedly connected to a force-bearing plate 13, and the circular gear 6 and the teeth 10 are meshed. The top of the force-bearing plate 13 passes through the top inner wall of the cavity 11 and extends outward. The bottom of the force-bearing plate 13 is slidably connected to the inside of the cavity 11, and the circular gear 6 and the teeth 10 are meshed.

[0034] The top of the force-bearing plate 13 passes through the top inner wall of the cavity 11 and extends outward. The bottom of the force-bearing plate 13 is slidably connected to the inside of the cavity 11. The outside of the circular gear 6 is rotatably connected to the inside of the sliding groove 7. The left and right sides of the protective door 9 are slidably connected to the inside of the two sliding grooves 7 respectively. The bottom of the protective door 9 contacts the top of the force-bearing plate 13. The outside of the circular gear 6 is rotatably connected to the inside of the sliding groove 7. The bottom of the sliding plate 12 is fixedly connected to the pressure plate 14. The sliding plate 12 inside the cavity 11 is connected to the bottom of the protective door 9 through the force-bearing plate 13. The force-bearing plate 13 can sense any pressure on the door. And trigger the safety mechanism, a pressure sensor 15 is provided on the bottom inner wall of the cavity 11, and the pressure plate 14 is located at the bottom of the sliding plate 12 and is connected to the pressure sensor 15 at the bottom of the cavity 11. The sensor can detect abnormal pressure and trigger shutdown and alarm to protect the safety of personnel and equipment. A plurality of stabilizing components for improving the stability of the device are provided inside the cavity 11. The outer sleeve of the stabilizing component is provided with a spring 17. One end of the spring 17 is fixedly connected to the bottom of the sliding plate 12, and the other end of the spring 17 is fixedly connected to the bottom inner wall of the cavity 11, so that the sliding plate 12 will compress the spring 17 when it moves;

[0035] Reference Figure 4 The stabilizing assembly includes a damper 16, the bottom of the damper 16 is fixedly connected to the bottom inner wall of the cavity 11, and the top of the damper 16 is fixedly connected to the bottom of the sliding plate 12, so that when the sliding plate 12 moves, the damper 16 is pressed, so that the damper 16 can prevent the spring 17 from deforming during the compression process;

[0036] Reference Figure 1 and Figure 5 An alarm 19 is fixedly connected to the left end of the front inner wall of the car 1, a floor button 20 is provided in the middle of the front inner wall of the car 1, and a ladder 18 is fixedly connected to the right end of the front inner wall of the car 1. The alarm 19 is used to sound an alarm when a danger is detected. The floor button 20 is convenient for passengers to select the destination floor. The ladder 18 provides an escape route in an emergency. A flap 21 is provided on the top right side of the car 1, and ventilation windows 22 are provided on the left and right sides of the rear side of the car 1. The flap 21 is designed at the top of the car 1 and can be quickly opened for escape in an emergency. The ventilation windows 22 maintain air circulation inside the car 1, providing a comfortable riding environment.

[0037] Working principle: First, the starting motor 4 drives the output shaft 5 to rotate, and the circular gear 6 on the output shaft 5 rotates accordingly. The circular gear 6 engages with the teeth 10 on the protective door 9, driving the protective door 9 to move up and down along the sliding groove 7 under the guidance of the guide rod 8. This moving mechanism ensures that the protective door 9 can be opened or closed quickly and smoothly to prevent pinching accidents when the elevator is running.

[0038] When the protective door 9 is close to closing or opening, the force-bearing plate 13 senses the position of the door and any possible obstruction through the connection with the bottom of the protective door 9. If the protective door 9 encounters an obstacle during the closing process, the force-bearing plate 13 will transfer the pressure to the sliding plate 12, thereby pushing the pressure plate 14. The pressure plate 14 activates the pressure sensor 15 at the bottom of the cavity 11, which triggers the alarm 19 to sound an alarm and shut down the motor 4, thereby preventing the door from moving further and avoiding potential injuries.

[0039] At the same time, the spring 17 and the damper 16 in the stabilization assembly work together to ensure that the protective door 9 moves smoothly and without violent vibration. The spring 17 provides the necessary elastic support, while the damper 16 absorbs the impact force caused by rapid movement or stopping, further enhancing the stability and responsiveness of the system.

[0040] In an emergency, such as equipment failure or the need for emergency evacuation, staff can use the ladder 18 located on the inner wall of the front side of the compartment 1 to escape. When escaping, they can quickly leave the compartment 1 through the top flap 21 to ensure the safety of personnel. At the same time, the ventilation windows 22 in the compartment 1 maintain air circulation, providing a more comfortable and safe environment.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent anti-pinch device for a construction hoist, comprising a carriage (1), characterized in that: The front and rear sides of the compartment (1) are fixedly connected to a housing (2), the left and right ends of the two housing shells (2) are fixedly connected to mounting plates (3), the tops of the two mounting plates (3) are fixedly connected to a driving assembly for providing power, the outside of the driving assembly is fixedly connected to a circular gear (6), the left and right sides of the housing (2) are provided with sliding grooves (7), the inside of the sliding grooves (7) is fixedly connected to a guide rod (8), the outside of the guide rod (8) is slidably connected to a protective door (9), the outside of the protective door (9) is fixedly connected to the housing (2), and the outside of the protective door (9) is fixedly connected to the housing (2). A plurality of teeth (10) are fixedly connected on both the left and right sides, a cavity (11) is provided at the bottom of the accommodating shell (2), a sliding plate (12) is slidably connected inside the cavity (11), a force-bearing plate (13) is fixedly connected to the top of the sliding plate (12), a pressure plate (14) is fixedly connected to the bottom of the sliding plate (12), a pressure sensor (15) is provided on the inner wall of the bottom of the cavity (11), a plurality of stabilizing components for enhancing the stability of the device are provided inside the cavity (11), and a spring (17) is provided on the outside of the stabilizing component.

2. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: The drive assembly comprises a motor (4), the bottom of the motor (4) is fixedly connected to the top of the mounting plate (3), the output end of the motor (4) is fixedly connected to an output shaft (5), and the middle part of the circular gear (6) is fixedly connected to the outside of the output shaft (5).

3. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: An alarm (19) is fixedly connected to the left end of the front inner wall of the compartment (1), a floor pressing plate (20) is provided in the middle of the front inner wall of the compartment (1), a ladder (18) is fixedly connected to the right end of the front inner wall of the compartment (1), a flap (21) is provided on the right side of the top of the compartment (1), and ventilation windows (22) are provided on both the left and right parts of the rear side of the compartment (1).

4. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: The stabilizing assembly comprises a damper (16), the bottom of the damper (16) is fixedly connected to the bottom inner wall of the cavity (11), and the top of the damper (16) is fixedly connected to the bottom of the sliding plate (12).

5. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: One end of the spring (17) is fixedly connected to the bottom of the sliding plate (12), and the other end of the spring (17) is fixedly connected to the bottom inner wall of the cavity (11).

6. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: The circular gear (6) and the teeth (10) are in meshing connection, and the top of the force-bearing plate (13) passes through the top inner wall of the cavity (11) and extends outward.

7. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: The bottom of the force-bearing plate (13) is slidably connected to the inside of the cavity (11), and the outside of the circular gear (6) is rotationally connected to the inside of the sliding groove (7).

8. The intelligent anti-pinch device for a construction hoist according to claim 1, characterized in that: The left and right sides of the protective door (9) are respectively slidably connected to the inside of the two sliding grooves (7), and the bottom of the protective door (9) is in contact with the top of the force-bearing plate (13).