A fall-prevention sealing device for construction site openings

Abstract

This utility model provides a fall prevention sealing device for construction site openings, belonging to the field of construction technology. It includes an installation frame, a safety light curtain, and a control module. The installation frame has an entrance / exit at the top, with installation grooves on both sides of the entrance / exit. Safety light curtains are installed in each of the installation grooves. One end of the installation frame has an installation recess containing a transmission component. The transmission component includes a motor with a first gear at one end. First limiting protrusions are located on both sides of the entrance / exit, and L-shaped connecting rods are mounted on each of the first limiting protrusions. One set of L-shaped connecting rods has a second gear corresponding to one of the limiting protrusions. The first and second gears mesh. The safety light curtain detects the entrance / exit; when no one is passing through, a signal is sent to the control module to reverse the motor, causing the connecting rods to close the device. This solves the problem of traditional fall prevention sealing devices being cumbersome to operate, easily overlooked by construction workers, and unable to close openings in a timely manner.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and more specifically, it relates to a fall prevention sealing device for construction site openings. Background Technology

[0002] In the field of construction technology, fall-prevention enclosures for openings are a commonly used safety protection device. They are widely used in reserved openings, elevator shafts, and stairwells on construction sites to effectively prevent people or objects from falling accidentally and to ensure the safety of people on construction sites.

[0003] However, traditional fall arrestor enclosures are typically made of rigid sheet metal or simply welded guardrails. For convenience, construction workers often forget to seal the openings, leaving them unprotected for extended periods and significantly increasing the risk of falls. Furthermore, traditional devices lack real-time monitoring and intelligent early warning systems, failing to detect damage in a timely manner. When personnel approach the opening, accidental collisions or aging can easily cause the protection to fail, reducing the reliability and safety of these devices. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a fall-prevention sealing device for construction site openings. This device solves the technical problems of traditional fall-prevention sealing devices being cumbersome to operate, prone to oversights, difficult to seal openings in a timely manner, lacking real-time monitoring and intelligent early warning, and unable to detect device damage or personnel approaching, resulting in protective failure and high safety risks.

[0005] The purpose and effect of this utility model's anti-fall sealing device for construction site openings are achieved through the following specific technical means: A fall-prevention enclosure for construction site openings includes an installation frame, a safety light curtain, and a control module; The mounting frame has an entrance / exit at the top, and mounting slots are provided on both sides of the entrance / exit. The safety light curtain is installed in each mounting slot. A mounting groove is provided at one end of the mounting frame, and a transmission component is provided in the mounting groove. The transmission assembly includes a motor. One end of the mounting groove has a through hole corresponding to the motor. One end of the motor is provided with a first gear corresponding to the through hole. Both sides of the inlet and outlet are provided with first limiting protrusions. Each of the first limiting protrusions is provided with an L-shaped connecting rod. One end of one set of the L-shaped connecting rods is provided with a second gear corresponding to the limiting protrusion. The first gear meshes with the second gear.

[0006] According to a preferred embodiment, the transmission assembly further includes a limiting slider, and two sets of guide grooves are respectively opened on both sides of the inlet and outlet. A limiting slider is installed in each of the two sets of guide grooves. A second limiting protrusion is provided on one side of each of the two sets of limiting sliders. A connecting rod is provided on each of the two sets of second limiting protrusions. A limiting block is provided at one end of each of the two sets of limiting sliders.

[0007] According to a preferred embodiment, the top of the mounting frame is provided with a cover plate, and both sides of the cover plate are provided with third limiting protrusions. One end of each of the two sets of L-shaped connecting rods is rotatably connected to the two sets of third limiting protrusions.

[0008] According to a preferred embodiment, a connecting rod is provided at one end of the cover plate, and one end of each of the two sets of connecting rods is rotatably connected to the connecting rod. The top of the mounting frame has multiple sets of grooves corresponding to the cover plate, and each groove is equipped with a pressure sensor.

[0009] According to a preferred embodiment, a protective cover is provided on the top of the mounting groove, and a control module and a buzzer are provided on the top of the protective cover; An installation slot is provided on one side of the inlet / outlet corresponding to the installation groove, and an LED light strip is provided in the installation slot.

[0010] According to a preferred embodiment, the top of the cover plate is provided with a groove, and sliding grooves are provided on both sides of the groove. A movable plate is slidably disposed in the sliding groove, and a handle is provided at the bottom of both the groove and the cover plate.

[0011] According to a preferred embodiment, a fixed base is fitted onto the mounting frame, both ends of the fixed base are provided with anti-slip grooves, a counterweight is provided on the top of the fixed base, and bolt holes are provided on the top of the fixed base.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. By using a safety light curtain, when the device is activated, the cover opens under motor drive, and the safety light curtain starts and monitors the entrance / exit area in real time. If no one passes through for an extended period, the safety light curtain sends a signal to the control module, triggering the motor to reverse. Through the meshing of the first and second gears, the L-shaped connecting rod pulls the cover to automatically close, preventing the risk of falls due to human negligence in leaving the opening unsealed, thus improving the device's automated protection capabilities. During the closing process, if the safety light curtain detects a person or object, it will interrupt the closing action to prevent pinching injuries, improving the device's adaptability in complex construction scenarios. This solves the problem of existing fall-prevention sealing devices being cumbersome to operate, easily overlooked by construction workers, and unable to close openings in a timely manner.

[0013] 2. If abnormal pressure is applied after the cover is closed, the pressure sensor will transmit a signal to the control module, triggering a buzzer to sound an alarm and alert on-site personnel that the device may be damaged or in danger, thus improving the device's fault warning capability. The fixed base secures the device with anti-slip grooves, counterweights, and bolt holes to prevent displacement or tipping due to collisions. Combined with the dynamic monitoring of the safety light curtain, this effectively reduces the risk of protection failure and improves the reliability and safety of the device at the construction site. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the assembled structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the structure of the transmission component and the mounting frame after assembly in this utility model; Figure 4 yes Figure 3 A schematic diagram of the disassembled structure.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows: 11. Mounting frame; 12. Safety light curtain; 13. Control module; 14. Motor; 15. First gear; 16. L-shaped connecting rod; 17. Second gear; 18. Limit slider; 19. Connecting rod; 22. Cover plate; 23. Buzzer; 24. Connecting rod; 25. Pressure sensor; 26. Protective cover; 27. LED light strip; 28. Movable plate; 29. ​​Fixed base; 31. Counterweight. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example

[0017] like Figures 1 to 4 As shown, This utility model provides a fall prevention sealing device for construction site openings, including an installation frame 11, a safety light curtain 12, and a control module 13; the safety light curtain 12 can be of model ZLM-LG, the control module 13 can be of model WYM240160K31G, and the control module 13 is connected to an external power supply device.

[0018] The top of the mounting frame 11 has an entrance / exit, and both sides of the entrance / exit have mounting slots. Safety light curtains 12 are installed in the mounting slots to monitor in real time whether a person or object is passing through the entrance / exit area and transmit the detection signal to the control module 13. One end of the mounting frame 11 has a mounting groove, in which a transmission component is installed to provide installation space for the device's transmission mechanism.

[0019] The transmission assembly includes a motor 14, which is connected to an external power supply as a power source to provide driving force for the entire transmission assembly. A through hole is provided at one end of the mounting groove corresponding to the motor 14, and a first gear 15 is provided at one end of the motor 14 corresponding to the through hole, used to transmit the rotational power of the motor 14. First limiting protrusions are provided on both sides of the inlet and outlet, and L-shaped connecting rods 16 are provided on each of the first limiting protrusions, serving as support and connection, converting the rotational motion of the gears into the motion of opening and closing the cover plate 22. A second gear 17 is provided at one end of one set of L-shaped connecting rods 16 corresponding to the limiting protrusions. The first gear 15 and the second gear 17 mesh, realizing the transmission and change of power through gear transmission.

[0020] The transmission assembly also includes a limit slider 18, which is used to limit the movement direction of the connecting rod 19 and ensure that it moves along a predetermined trajectory. Two sets of guide grooves are also provided on both sides of the inlet and outlet. Limit sliders 18 are installed in both sets of guide grooves. A second limit protrusion is provided on one side of each set of limit sliders 18. A connecting rod 19 is provided on each of the two sets of second limit protrusions, which plays a connecting and transmission role, and assists the L-shaped connecting rod 16 in driving the cover plate 22 to move. A limit block is provided at one end of each set of limit sliders 18 to limit the rotation angle of the connecting rod 19 and ensure the stability of the transmission assembly.

[0021] The top of the mounting frame 11 is provided with a cover plate 22, which is used to close the openings of the construction site to prevent people and objects from falling. Both sides of the cover plate 22 are provided with third limiting protrusions. One end of each of the two sets of L-shaped connecting rods 16 is rotatably connected to the two sets of third limiting protrusions, so as to realize the movable connection between the L-shaped connecting rods 16 and the cover plate 22, which facilitates the opening and closing of the cover plate 22. One end of the cover plate 22 is provided with a connecting rod 24 for connecting the connecting rods 19 on both sides, so that the connecting rods 19 on both sides move in coordination. One end of each of the two sets of connecting rods 19 is rotatably connected to the connecting rod 24. The top of the mounting frame 11 has multiple sets of grooves corresponding to the cover plate 22. Each groove is provided with a pressure sensor 25 for detecting whether the cover plate 22 is under pressure. If a person or object falls on the cover plate 22, the pressure signal is transmitted to the control module 13. The pressure sensor 25 can be a TQ-717 model.

[0022] The top of the mounting groove is provided with a protective cover 26 to protect the transmission components and other parts inside the mounting groove from external impact. The top of the protective cover 26 is provided with a control module 13 and a buzzer 23. The control module 13 is used to receive and process signals from the safety light curtain, pressure sensor 25, etc., and to control the operation of the motor 14, buzzer 23 and other components. The buzzer 23 is used to issue an alarm to remind on-site personnel. An installation groove is provided on one side of the mounting recess corresponding to the entrance / exit. An LED light strip 27 is installed in the installation groove to provide lighting around the opening.

[0023] The top of the cover plate 22 has a groove, and both sides of the groove have sliding grooves. A movable plate 28 is slidably mounted in the sliding grooves, which can be slidable according to actual needs to meet different usage scenarios and facilitate manual opening of the cover plate 22. Both the groove and the bottom of the cover plate 22 have handles, which can be slidable according to actual needs to facilitate manual opening of the cover plate 22. A fixed base 29 is fitted on the mounting frame 11 to fix the entire device to the ground or other supporting surface. Both ends of the fixed base 29 have anti-slip grooves to facilitate handling and increase friction. A counterweight 31 is set on the top of the fixed base 29 to increase the stability of the device. Bolt holes are set on the top of the fixed base 29, which can be used to further fix the device with bolts to make it more stable.

[0024] The specific usage and function of this embodiment are as follows: When in use, the device is fixed to the construction site opening through the bolt holes on the top of the fixed base 29. The counterweight 31 enhances stability and prevents the device from shifting. Then the device is started, the cover plate 22 is opened under the drive of the motor 14, and the safety light curtain 12 is activated to monitor the entrance and exit area in real time. When construction workers or objects pass through the opening, the safety light curtain 12 detects the obstruction signal and transmits it to the control module 13. The control module 13 keeps the motor 14 on, keeping the cover 22 open to ensure smooth passage. If no one passes through for a long time, the safety light curtain 12 feeds back the signal to the control module 13. The control module 13 controls the motor 14 to reverse, and the first gear 15 drives the second gear 17 to rotate, driving the L-shaped connecting rod 16 and the connecting rod 19 to automatically close the cover 22, sealing the opening and preventing accidental falls. After the cover plate 22 is closed, the pressure sensor 25 continuously monitors the pressure of the cover plate 22. If an object falls and hits the cover plate 22, the pressure sensor 25 transmits a signal to the control module 13, triggering the buzzer 23 to sound an alarm and the LED light strip 27 to flash, alerting on-site personnel. At the same time, the limit slider 18 cooperates with the guide groove to ensure the stable movement of the connecting rod 19, and the limit block restricts the angle of the connecting rod 19 to ensure the safe operation of the transmission components.

[0025] If manual operation is required, construction workers can manually open the cover plate 22 using the handle at the bottom of the cover plate 22 or the sliding movable plate 28; the LED light strip 27 provides lighting and reduces safety hazards.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A fall-prevention sealing device for construction site openings, comprising an installation frame (11), a safety light curtain (12), and a control module (13), characterized in that: The top of the mounting frame (11) is provided with an entrance and an exit, and both sides of the entrance and exit are provided with mounting grooves. The safety light curtain (12) is installed in each of the mounting grooves. One end of the mounting frame (11) is provided with a mounting groove, and a transmission component is provided in the mounting groove. The transmission assembly includes a motor (14), one end of the mounting groove is provided with a through hole corresponding to the motor (14), one end of the motor (14) is provided with a first gear (15) corresponding to the through hole, and both sides of the inlet and outlet are provided with first limiting protrusions, and each of the first limiting protrusions is provided with an L-shaped connecting rod (16), one end of one set of the L-shaped connecting rods (16) is provided with a second gear (17) corresponding to the limiting protrusion, and the first gear (15) meshes with the second gear (17).

2. The anti-fall sealing device for construction site openings according to claim 1, characterized in that: The transmission assembly also includes a limiting slider (18), and two sets of guide grooves are respectively opened on both sides of the inlet and outlet. The limiting slider (18) is installed in both sets of guide grooves. A second limiting protrusion is provided on one side of each of the two sets of limiting sliders (18). A connecting rod (19) is provided on each of the two sets of second limiting protrusions. A limiting block is provided at one end of each of the two sets of limiting sliders (18).

3. The anti-fall sealing device for construction site openings according to claim 1, characterized in that: The top of the mounting frame (11) is provided with a cover plate (22), and the cover plate (22) is provided with third limiting protrusions on both sides. One end of the two sets of L-shaped connecting rods (16) is rotatably connected to the two sets of third limiting protrusions respectively.

4. A fall-prevention sealing device for construction site openings according to claim 3, characterized in that: One end of the cover plate (22) is provided with a connecting rod (24), and one end of each of the two sets of connecting rods (19) is rotatably connected to the connecting rod (24); The top of the mounting frame (11) has multiple sets of grooves corresponding to the cover plate (22), and each groove is equipped with a pressure sensor (25).

5. A fall-prevention sealing device for construction site openings according to claim 4, characterized in that: A protective cover (26) is provided on the top of the mounting groove, and a control module (13) and a buzzer (23) are provided on the top of the protective cover (26). An installation slot is provided on one side of the inlet / outlet corresponding to the installation groove, and an LED light strip (27) is provided in the installation slot.

6. A fall-prevention sealing device for construction site openings according to claim 5, characterized in that: The top of the cover plate (22) is provided with a groove, and sliding grooves are provided on both sides of the groove. A movable plate (28) is slidably arranged in the sliding groove. Both the groove and the bottom of the cover plate (22) are provided with handles.

7. A fall-prevention sealing device for construction site openings according to claim 1, characterized in that: The mounting frame (11) is fitted with a fixed base (29), both ends of the fixed base (29) are provided with anti-slip grooves, the top of the fixed base (29) is provided with a counterweight (31), and the top of the fixed base (29) is provided with bolt holes.

Images