Anti-falling protection device for fire ladder

Abstract

According to the anti-falling protection device for the fire ladder, the friction coefficient between the anti-sliding gasket and the ground can be increased, sideslip of the ladder due to wet and slippery ground or uneven stress is avoided, the buffer device can absorb kinetic energy during accidental impact, and the counter-acting force borne by the ladder and an operator is relieved; according to the locking mechanism, through the synergistic effect of a connecting column, a connecting plate and a fastening nut, rapid locking and dismounting of the fire ladder are achieved, the ladder can be rapidly fixed in an emergency, sliding or toppling of the ladder is prevented, and the stability of the rescue process is guaranteed; the monitoring module collects pressure data in a locking state in real time, the pressure data is analyzed by the signal processor, then an audible and visual alarm is given out through the early warning module, potential safety hazards such as ladder loosening and abnormal stress can be recognized in advance, and the accident risk is eliminated in the germination stage. The auxiliary fixing mechanism can flexibly adapt to complex terrains such as concave-convex grounds and inclined slopes, the supporting stability of the device is further enhanced, and the application range is widened.

Description

Technical Field

[0001] This invention relates to the field of fire escape ladder technology, specifically a fire escape ladder fall protection device. Background Technology

[0002] Fire ladders are specialized ladders used for fire fighting, rescue, and personnel evacuation in emergency situations such as fires. They are mainly divided into two categories: fixed ladders (such as fire elevators) and mobile ladders (such as hook ladders, pull ladders, and rope ladders), each with different functions and application scenarios.

[0003] Existing fire escape ladder fall protection devices suffer from problems such as large size and excessive weight, making them difficult to carry and affecting rescue flexibility. Furthermore, most devices lack detection and early warning functions, failing to monitor the safety status of the ladder in real time, resulting in difficulties in timely detection and handling of safety hazards. Moreover, they also suffer from high maintenance costs and limited service life, leading to poor economic efficiency. Therefore, this invention provides a fire escape ladder fall protection device. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a fire escape ladder fall protection device to solve the above problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fire escape ladder fall protection device, comprising: a main frame, a fall protection component, a locking mechanism, a monitoring module, and an early warning module, characterized in that: the fall protection component is disposed on the main frame; the locking mechanism is disposed on the side of the main frame for quickly fixing the fire escape ladder in an emergency to prevent it from sliding or tipping over; the early warning module is electrically connected to the monitoring module for receiving data detected by the monitoring module and issuing an alarm before a danger occurs.

[0006] Preferably, the main frame is made of high-strength alloy material, and two main frames are symmetrically arranged.

[0007] Preferably, the fall protection assembly includes: an anti-slip pad and a buffer device, wherein the anti-slip pad is fixed to the contact surface between the lower end of the main frame and the ground; the buffer device is located inside the main frame, and the buffer device is detachably connected to the main frame via a fixed shaft.

[0008] Preferably, the locking mechanism includes: connecting columns installed on the outer walls of both sides of the main frame, connecting plates installed between the connecting columns on the same side, and fastening nuts fitted onto the outer circumferential surface of the connecting column located above.

[0009] Preferably, the monitoring module includes: a pressure sensor, a signal processor, and a data transmission unit; wherein, the pressure sensor is installed at the stress point of the connecting column to sense changes in the locking state in real time and transmit the data to the signal processor; the signal processor is used to analyze and process the collected pressure data; the data transmission unit is connected to the signal processor and sends the processed information to the early warning module.

[0010] Preferably, the early warning module includes: an audible and visual alarm, a control panel, and a backup power supply; wherein, the audible and visual alarm is located on the front of the main frame and is used to issue a warning signal through sound and light when an anomaly is detected; the control panel is connected to the data transmission unit and is used to display the current lock status and system operation status; the backup power supply is used to provide continuous power support.

[0011] Preferably, it further includes: auxiliary fixing mechanisms, which are disposed on the outer walls of both sides of the bottom of the main frame. Each auxiliary fixing mechanism includes: two symmetrically arranged support plates. The lower end of each support plate is connected to a movable plate via a connecting shaft. A movable seat is installed at the lower end of the movable plate. A cylinder is installed on the inner side of the movable seat. A fixed cylinder is sleeved on the outer wall of the cylinder. A support seat is disposed on the outer side of the fixed cylinder. A horizontal plate is installed at the upper end of the support seat. The upper end of the support plate is movably connected to the horizontal plate via a connecting shaft.

[0012] Preferably, the lower end of the support plate is provided with a rectangular through groove, and the movable plate is movably connected to the rectangular through groove via a connecting shaft.

[0013] Preferably, the upper end of the support base is provided with a movable groove, and the lower end of the movable base is movably connected to the support base through the movable groove.

[0014] Preferably, the interior of the horizontal plate has two movable grooves with arc-shaped ends, and the upper connecting shaft is movably connected to the horizontal plate through the movable grooves, and the outer circumferential surface of the connecting shaft is threaded with a nut.

[0015] Beneficial effects

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] Anti-slip pads increase the coefficient of friction with the ground, preventing the ladder from slipping due to wet or uneven ground. The buffer device absorbs kinetic energy during accidental impacts, reducing the reaction force on the ladder and operators. Its detachable design facilitates maintenance and replacement, lowering operating costs. The locking mechanism, through the coordinated action of connecting columns, connecting plates, and fastening nuts, enables rapid locking and disassembly of the fire ladder. In emergencies, it quickly secures the ladder, preventing slippage or tipping and ensuring stability during rescue operations. The monitoring module collects pressure data in real time during the locking state. After analysis by the signal processor, an audible and visual alarm is triggered by the warning module, allowing for early identification of potential safety hazards such as ladder loosening or abnormal stress, eliminating risks at the outset. The auxiliary fixing mechanism uses a cylinder-driven moving seat to adjust the support position. Combined with the movable support plate and cross plate, it flexibly adapts to complex terrains such as uneven ground and sloping slopes, further enhancing the device's support stability and broadening its applicability. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of Example 1;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of Example 2;

[0020] Figure 3 This is a three-dimensional structural diagram of the auxiliary fixing mechanism in Embodiment 2.

[0021] In the diagram: 1. Main frame; 2. Fall protection assembly; 21. Anti-slip pad; 22. Buffer device; 23. Fixed shaft; 3. Locking mechanism; 31. Connecting column; 32. Connecting plate; 33. Fastening nut; 4. Monitoring module; 41. Pressure sensor; 42. Signal processor; 43. Data transmission unit; 5. Early warning module; 51. Audible and visual alarm; 52. Control panel; 53. Backup power supply; 6. Auxiliary fixing mechanism; 61. Support plate; 62. Connecting shaft; 63. Moving plate; 64. Moving seat; 65. Cylinder; 66. Fixed cylinder; 67. Support seat; 68. Horizontal plate. Detailed Implementation

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

[0023] Example 1

[0024] Please see Figure 1A fire escape ladder fall protection device includes: a main frame 1, a fall protection component 2, a locking mechanism 3, a monitoring module 4, and an early warning module 5. The fall protection component 2 is mounted on the main frame 1; the locking mechanism 3 is located on the side of the main frame 1 and is used to quickly secure the fire escape ladder in an emergency to prevent it from sliding or tipping over; the early warning module 5 is electrically connected to the monitoring module 4 and is used to receive data detected by the monitoring module 4 to issue an alarm before a hazard occurs.

[0025] Specifically, the main frame 1 is made of high-strength alloy material, which has excellent mechanical strength and impact resistance, capable of withstanding the dynamic loads when firefighters climb and the instantaneous impact force when falling from a height, effectively preventing deformation or breakage of the main frame. At the same time, its low density reduces the overall weight of the device while ensuring structural strength, making it easy for firefighters to carry and quickly install to the designated location on the fire ladder. In addition, the material also has good corrosion resistance and high-temperature stability, which can adapt to complex working environments such as humid and high-temperature smoke at fire scenes, reducing the risk of rust during long-term use and extending the service life of the device. Furthermore, there are two symmetrical main frames 1, which can further improve the stability of use and meet the needs of multiple people climbing at the same time.

[0026] Specifically, the fall protection component 2 includes: an anti-slip pad 21 and a buffer device 22. The anti-slip pad 21 is fixed to the contact surface between the lower end of the main frame 1 and the ground to increase friction and prevent displacement of the device during use. The buffer device 22 is located inside the main frame 1 and is detachably connected to the main frame 1 through a fixed shaft 23. It further reduces the risk of falling by absorbing and dispersing energy. It can be quickly assembled and disassembled under the action of the fixed shaft 23. The buffer device 22 can be disassembled by disassembling the fixed shaft 23, making it easy to fold and store.

[0027] Specifically, the locking mechanism 3 includes: connecting columns 31 installed on the outer walls of both sides of the main frame 1; connecting plates 32 installed between the connecting columns 31 on the same side; and fastening nuts 33 fitted onto the outer circumferential surface of the upper connecting column 31. The connecting columns 31 ensure the stability of the connection between the connecting plate 32 and the main frame 1. The connecting plate 32 has a through groove for the connecting columns 31 to move. By moving the connecting plate 32 along the axial direction of the connecting columns 31, the tightness of the fit between the connecting plate 32 and the side wall of the fire ladder is adjusted, achieving rapid locking of the fire ladder. The connecting plate 32 uses a wear-resistant rubber and metal composite structure, which enhances the friction with the surface of the fire ladder, prevents slippage, and protects the ladder surface from damage. In case of emergency, firefighters can quickly tighten the fastening nuts 33 to complete the locking operation of the device without the need for complex tools, thus improving emergency response efficiency.

[0028] Specifically, the monitoring module 4 includes a pressure sensor 41, a signal processor 42, and a data transmission unit 43. The pressure sensor 41 is installed at the stress point of the connecting column 31 to sense changes in the locking state in real time and transmit the data to the signal processor 42. The signal processor 42 analyzes and processes the collected pressure data to determine whether the locking is successful or whether there is an abnormality. The data transmission unit 43 is connected to the signal processor 42 and sends the processed information to the early warning module 5 so that timely countermeasures can be taken.

[0029] Specifically, the early warning module 5 includes: an audible and visual alarm 51, a control panel 52, and a backup power supply 53; wherein, the audible and visual alarm 51 is located on the front of the main frame 1 and is used to issue warning signals through sound and light when an anomaly is detected, so as to remind the operator to take timely measures; the control panel 52 is connected to the data transmission unit 43 and is used to display the current lock status and system operation status, and provide manual operation options for intervention in special circumstances; the backup power supply 53 is used to provide continuous power support to ensure that the system can still operate normally when the main power is interrupted.

[0030] Working principle:

[0031] Firefighters first moved the two symmetrically arranged main frames 1 to the fire ladder working position, and quickly fixed them through the locking mechanism 3. They then adjusted the connecting plate 32 on the same side to move axially along the connecting column 31 so that the connecting plate 32 fits against the side wall of the fire ladder. Finally, they tightened the fastening nut 33 to lock the connection. At this time, the anti-slip pad 21 is in close contact with the ground, increasing friction and preventing the device from shifting.

[0032] After the device is activated, the pressure sensor 41 of the monitoring module 4 senses the stress state of the connecting column 31 in real time and transmits the data to the signal processor 42. The signal processor 42 analyzes the pressure data to determine whether the locking is secure or whether there is a loosening trend. The processed information is sent to the early warning module 5 through the data transmission unit 43.

[0033] If the locking status is normal, the control panel 52 displays the current operating parameters and the successful locking status; if an abnormal locking is detected (such as the pressure value being lower than the threshold), the data transmission unit 43 immediately triggers the audible and visual alarm 51 of the early warning module 5, emitting a conspicuous sound and light warning. The operator can view the abnormal details and manually adjust the locking mechanism through the control panel 52.

[0034] When a fall risk occurs, the cushioning device 22 of the fall arrestor 2 quickly absorbs and disperses the impact force, reducing fall injury; if the main power supply is interrupted on site, the backup power supply 53 automatically switches to power supply to ensure the continuous operation of the monitoring and early warning system. In an emergency, firefighters can quickly tighten the locking nut 33 to further reinforce the locking mechanism without additional tools, improving emergency response efficiency and ensuring the safety of workers.

[0035] Example 2

[0036] Reference Figures 2-3 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs from the previous embodiment in that it includes: an auxiliary fixing mechanism 6. The auxiliary fixing mechanism 6 is disposed on the outer walls of both sides of the bottom of the main frame 1 to enhance the overall stability and provide additional support under complex terrain conditions. Each auxiliary fixing mechanism 6 includes: two symmetrically arranged support plates 61. The lower end of each support plate 61 is connected to a movable plate 63 through a connecting shaft 62. A movable seat 64 is installed at the lower end of the movable plate 63. A cylinder 65 is installed on the inner side of the movable seat 64. A fixing cylinder 66 is sleeved on the outer wall of the cylinder 65. A support seat 67 is disposed on the outer side of the fixing cylinder 66. A horizontal plate 68 is installed at the upper end of the support seat 67. The upper end of the support plate 61 is movably connected to the horizontal plate 68 through the connecting shaft 62.

[0037] The main frame 1 has countersunk holes on both sides, and the connecting shaft 62 is inserted into the countersunk holes. The connecting shaft 62 ensures the stability of the connection between the main frame 1 and the support plate 61. It also allows for angle adjustment between the support plate 61, the movable plate 63, and the horizontal plate 68, thus meeting the needs of different heights. The movable seat 64 supports the movable plate 63, and the support seat 67 supports the movable seat 64. The cylinder 65 adjusts the horizontal distance of the movable seat 64. The fixed cylinder 66 ensures the installation stability and protection of the cylinder 65. The horizontal plate 68... The movement stability of the connecting shaft 62 can be achieved under the action of cylinder 8. Each cylinder 65 is connected to the control panel 52 and is equipped with a different controller. After the cylinder 65 is started, the piston rod of the cylinder 65 pushes the fixed cylinder 66 to drive the moving seat 64 to slide along the inner side of the support seat 67. At this time, the moving plate 63 can rotate around the connecting shaft 62 to further adapt to the slight undulations of the ground and ensure that each support plate 61 can be evenly stressed, effectively reducing the risk of the device overturning due to uneven ground. Firefighters can accurately control the extension and retraction stroke of the cylinder 65 through the corresponding buttons on the control panel 52 to quickly adapt to the bottom of fire ladders of different widths or terrain spans, greatly shortening the on-site debugging time.

[0038] Specifically, a rectangular through groove is provided at the lower end of the support plate 61, and the movable plate 63 is movably connected to the rectangular through groove through the connecting shaft 62. The rectangular through groove provides the movable plate 63 with fine-tuning space in the vertical direction. When the fire ladder is placed on an inclined or uneven ground, the movable plate 63 can slide up and down along the rectangular through groove according to the actual terrain. With the rotation of the connecting shaft 62, the support base 67 is always in close contact with the ground to ensure the stability of the support.

[0039] Specifically, the upper end of the support base 67 is provided with a movable groove, and the lower end of the movable seat 64 is movably connected to the support base 67 through the movable groove; the movable groove can provide a smooth horizontal sliding track for the movable seat 64, ensuring that it moves smoothly along the length direction of the support base 67 under the push of the cylinder 65, and avoiding adjustment jamming due to excessive frictional resistance.

[0040] Specifically, the interior of the horizontal plate 68 has two movable slots with arc-shaped ends. The upper connecting shaft 62 is movably connected to the horizontal plate 68 through the movable slots, and a nut is threaded onto the outer circumferential surface of the connecting shaft 62. The movable slots provide flexible guiding space for the movement of the connecting shaft 62, and the arc-shaped structures at both ends effectively reduce the frictional resistance between the connecting shaft 62 and the slot wall, allowing the connecting shaft 62 to slide smoothly along the slot when adjusting the angle, avoiding jamming or component damage caused by hard contact. At the same time, by tightening the nut on the outside of the connecting shaft 62, the connecting shaft 62, adjusted to the appropriate position, can be firmly locked in the movable slot, preventing the connecting shaft 62 from shifting due to vibration or external force during use, ensuring that the auxiliary fixing mechanism 6 always maintains a stable support state, and further enhancing the adaptability and reliability of the device in complex terrain.

[0041] Working principle:

[0042] After the locking mechanism 3 is quickly locked, firefighters activate cylinder 65 of auxiliary fixing mechanism 6 via control panel 52. The piston rod of cylinder 65 pushes fixing cylinder 66, causing movable seat 64 to slide smoothly along the movable groove at the upper end of support seat 67, adjusting it to a position suitable for the width of the bottom of the fire ladder or the span of the terrain. At this time, movable plate 63 can rotate around connecting shaft 62, and at the same time, make fine vertical adjustments along the rectangular through groove at the lower end of support plate 61, coordinating with the slight undulations or inclinations of the ground to ensure that support seat 67 is always tightly attached to the ground. Subsequently, firefighters tighten the nut on the outside of connecting shaft 62 on horizontal plate 68, firmly locking connecting shaft 62 into the movable groove of horizontal plate 68, ensuring that auxiliary fixing mechanism 6 maintains a stable support state.

[0043] During device operation, the pressure sensor 41 of the monitoring module 4 continuously senses the stress state of the connecting column 31 of the locking mechanism 3, while the signal processor 42 simultaneously receives the stroke feedback data of the cylinder 65 of the auxiliary fixing mechanism 6, and comprehensively analyzes whether the locking is secure and whether the auxiliary support is stable. If any abnormality is detected in the auxiliary fixing mechanism 6, such as displacement of the moving seat 64 or detachment of the support seat 67 from the ground, the data transmission unit 43 immediately sends the abnormality information to the early warning module 5, and the audible and visual alarm 51 issues an audible and visual warning. Firefighters can quickly eliminate potential hazards by adjusting the extension and retraction stroke of the cylinder 65 or relocking the connecting shaft 62 through the control panel 52.

[0044] When the ground is uneven or sloping during fire ladder operation, the fine-tuning of the movable plate 63 along the rectangular through-slot and the horizontal sliding of the movable seat 64 of the auxiliary fixing mechanism 6 work together to ensure that each support plate 61 is evenly stressed, effectively reducing the risk of the device tipping over. If the main power supply is interrupted, the backup power supply 53 automatically switches to power, ensuring the continuous operation of the cylinder control, monitoring module, and early warning module of the auxiliary fixing mechanism 6. The entire commissioning process of the auxiliary fixing mechanism 6 requires no additional tools and can be precisely operated through the control panel 52, greatly improving the adaptability and emergency response efficiency of the device in complex terrain and further ensuring the climbing safety of firefighters.

[0045] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fall protection device for fire escape ladders, comprising: The main frame (1), fall arrestor (2), locking mechanism (3), monitoring module (4) and early warning module (5) are characterized in that the fall arrestor (2) is disposed on the main frame (1); the locking mechanism (3) is disposed on the side of the main frame (1) for quickly fixing the fire ladder in an emergency to prevent it from sliding or tipping over; the early warning module (5) is electrically connected to the monitoring module (4) for receiving data detected by the monitoring module (4) and issuing an alarm before danger occurs.

2. The fire escape ladder fall protection device according to claim 1, characterized in that, The main frame (1) is made of high-strength alloy material, and there are two main frames (1) symmetrically arranged.

3. The fire escape ladder fall protection device according to claim 1, characterized in that, The fall protection component (2) includes: an anti-slip pad (21) and a buffer device (22), wherein the anti-slip pad (21) is fixed to the contact surface between the lower end of the main frame (1) and the ground; the buffer device (22) is located inside the main frame (1), and the buffer device (22) is detachably connected to the main frame (1) through a fixed shaft (23).

4. The fire escape ladder fall protection device according to claim 1, characterized in that, The locking mechanism (3) includes: connecting columns (31) installed on the outer walls of both sides of the main frame (1), connecting plates (32) installed between the connecting columns (31) on the same side, and fastening nuts (33) sleeved on the outer circumferential surface of the connecting column (31) located above.

5. A fire escape ladder fall protection device according to claim 4, characterized in that, The monitoring module (4) includes: a pressure sensor (41), a signal processor (42), and a data transmission unit (43); wherein, the pressure sensor (41) is installed on the force point of the connecting column (31) and is used to sense changes in the locking state in real time and transmit the data to the signal processor (42); the signal processor (42) is used to analyze and process the collected pressure data; the data transmission unit (43) is connected to the signal processor (42) and sends the processed information to the early warning module (5).

6. A fire escape ladder fall protection device according to claim 5, characterized in that, The early warning module (5) includes: an audible and visual alarm (51), a control panel (52), and a backup power supply (53); wherein, the audible and visual alarm (51) is located on the front of the main frame (1) and is used to issue warning signals by sound and light when an abnormality is detected; the control panel (52) is connected to the data transmission unit (43) and is used to display the current lock status and system operation status; the backup power supply (53) is used to provide continuous power support.

7. A fire escape ladder fall protection device according to claim 1, characterized in that, Also includes: Auxiliary fixing mechanism (6) is provided on the outer wall of the bottom two sides of the main frame (1). Each auxiliary fixing mechanism (6) includes: two symmetrically arranged support plates (61). The lower end of each support plate (61) is connected to a movable plate (63) through a connecting shaft (62). The lower end of the movable plate (63) is equipped with a movable seat (64). A cylinder (65) is installed on the inner side of the movable seat (64). A fixed cylinder (66) is sleeved on the outer wall of the cylinder (65). A support seat (67) is provided on the outer side of the fixed cylinder (66). A horizontal plate (68) is installed on the upper end of the support seat (67). The upper end of the support plate (61) is movably connected to the horizontal plate (68) through a connecting shaft (62).

8. A fire escape ladder fall protection device according to claim 7, characterized in that, The lower end of the support plate (61) is provided with a rectangular through groove, and the movable plate (63) is movably connected to the rectangular through groove through the connecting shaft (62).

9. A fire escape ladder fall protection device according to claim 7, characterized in that, The upper end of the support base (67) is provided with a movable groove, and the lower end of the movable base (64) is movably connected to the support base (67) through the movable groove.

10. A fire escape ladder fall protection device according to claim 7, characterized in that, The interior of the horizontal plate (68) has two movable grooves with arc-shaped ends. The connecting shaft (62) located above is movably connected to the horizontal plate (68) through the movable grooves, and the outer circumferential surface of the connecting shaft (62) is threaded with a nut.

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