Switch trigger device of car roof rescue ladder stand
By designing a car climbing switch to trigger device with a leveraged principle and a heavy block, it solves the problem of complex structure, large occupation space, and poor durability, and achieves the effects of small compactness, simple structure, and convenient operation. Improve the efficiency and reliability of emergency rescue.
Patent Information
- Application Number
- CN202421138145.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing top rescue ladder switch trigger device has a complex structure, large space occupies, and the spring return system has poor durability, making it unable to adapt to the weight adjustment of different elevator ladders.
The switch trigger device of the ranging ladder climbing is designed, and the hood and switch components of the top opening are used to design the switch board designed by the leverage principle. switch.
The space of the device is small, compact, simple, and small in components, reducing maintenance costs, improving the convenience and efficiency of operation during emergency rescue, and ensuring that in emergency situations, it can exert its efficiency quickly and accurately.
Smart Images
Figure CN222410601U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a car top rescue ladder structure, in particular to a switch trigger device of the car top rescue ladder. Background Art
[0002] As people pay more and more attention to safety, the performance requirements for elevators are getting higher and higher. When a dangerous situation or maintenance occurs, rescuers outside the car or people inside the car will take out the ladder in the elevator for people inside and outside the elevator to climb to achieve rescue or maintenance.
[0003] The switch device of the elevator car ladder is usually used to sense the state of the ladder being unfolded for use and folded for storage. When the switch is triggered, the power supply of the elevator car can be cut off in some cases to ensure safety. The design of this device allows workers to safely enter and exit the elevator shaft during maintenance or emergency rescue, while avoiding starting the elevator car without power failure to prevent accidents.
[0004] Existing ladder switch trigger devices are generally complex in structure, occupy a large space, and usually use springs for reset. However, different elevators use different ladders, the elastic coefficient of the spring cannot adapt to the adjustment of the ladder weight, and the spring is easily failed due to long-term compression and has poor durability. Utility Model Content
[0005] The purpose of the utility model is to provide a switch trigger device for a car top rescue ladder. The utility model has the characteristics of small and compact structure and good durability.
[0006] The technical solution of the utility model is as follows: a switch trigger device for a rescue ladder on a car roof comprises a protective cover with a top opening, a ladder is arranged in the protective cover, a trigger piece is arranged on the ladder, and a switch assembly is arranged on the protective cover; the switch assembly comprises a safety switch and a switch plate, the switch plate is rotatably connected to the protective cover through a rotating shaft, one end of the switch plate is located above the safety switch as a trigger end, and the other end of the switch plate is located below the trigger piece as a collision end; when the ladder is stored in the protective cover until the trigger piece contacts the collision end of the switch plate, the trigger end of the switch plate is separated from the safety switch; when the ladder is moved out of the protective cover and the trigger piece is separated from the collision end of the switch plate, the trigger end of the switch plate triggers the safety switch.
[0007] In the aforementioned switch trigger device of the car roof rescue ladder, the trigger member is a horizontal bar.
[0008] In the aforementioned switch triggering device of the car roof rescue ladder, a counterweight block is provided at the triggering end of the switch plate.
[0009] In the aforementioned switch triggering device of the car roof rescue ladder, the counterweight block can be detachably mounted on the switch plate.
[0010] In the aforementioned switch trigger device of the car roof rescue ladder, the safety switch is installed on the outside of the protective cover through a connecting plate, the trigger end of the switch plate is located outside the protective cover, and the collision end of the switch plate is located inside the protective cover.
[0011] In the aforementioned switch triggering device of the car top rescue ladder, the safety switch adopts a UKS switch.
[0012] In the aforementioned switch triggering device of the car roof rescue ladder, the ladder is a fixed ladder, a telescopic ladder or a folding ladder.
[0013] In the aforementioned switch triggering device of the car top rescue ladder, the safety switch is connected to the alarm system of the elevator.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The switch assembly of the utility model has a small and compact structure, cleverly utilizes the limited space on the car roof, does not occupy too much extra area, has a high space utilization rate, and realizes the miniaturization and efficiency of the rescue equipment; and the switch assembly has few parts, a simple structure, and is easy and quick to disassemble and repair, which significantly reduces the subsequent maintenance costs.
[0016] The switch assembly of the utility model is designed based on the lever principle. Even in a narrow or special environment, the safety switch can be triggered under the gravity of the switch plate, which saves effort in operation and greatly improves the convenience and efficiency of operation during emergency rescue. It has strong feasibility and reliability and high durability, ensuring that it can quickly and accurately exert its effectiveness during emergency rescue, providing strong support for rescue work.
[0017] The switch components are made of high-strength materials, such as steel, aluminum alloy, titanium alloy, etc., which can withstand long-term load pressure without deformation. They have high strength, good safety and durability, and can ensure long-term stability and reliability in emergency rescue scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the utility model.
[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.
[0020] Figure 3 It is a structural diagram of the switch assembly.
[0021] The markings in the accompanying drawings are: 1, guard; 2, ladder; 21, crossbar; 3, switch assembly; 31, safety switch; 311, connecting plate; 32, switch plate; 33, rotating shaft; 34, trigger end; 35, collision end; 36, counterweight. DETAILED DESCRIPTION
[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] Example:
[0025] like Figure 1-Figure 3 As shown, the switch trigger device of the car roof rescue ladder includes a protective cover 1 with a top opening, a ladder 2 is arranged in the protective cover 1, a trigger member is arranged on the ladder 2, and a switch assembly 3 is arranged on the protective cover 1; the switch assembly 3 includes a safety switch 31 and a switch plate 32, the switch plate 32 is rotatably connected to the protective cover 1 through a rotating shaft 33, one end of the switch plate 32 is located above the safety switch 31 as a trigger end 34, and the other end of the switch plate 32 is located below the trigger member as a collision end 35; when the ladder 2 is stored in the protective cover 1 until the trigger member contacts the collision end 35 of the switch plate 32, the trigger end 34 of the switch plate 32 is separated from the safety switch 31; when the ladder 2 is moved out of the protective cover 1 and the trigger member is separated from the collision end 35 of the switch plate 32, the trigger end 34 of the switch plate 32 triggers the safety switch 31.
[0026] The switch plate 32 triggers the safety switch 31 through the lever principle. When the elevator suddenly breaks down, the rescue personnel at the top of the car will extract the ladder 2 from the protective cover 1, so that the triggering member of the ladder 2 is separated from the collision end 35 of the switch plate 32, and the triggering end 34 of the switch plate 32 falls under the action of gravity, triggering the safety switch 31, thereby transmitting a signal that the ladder 2 has been extracted. The overall structure is simple, safe and durable. Even in narrow or special environments, the safety switch 31 can be triggered by the gravity of the switch plate 32, which saves effort in operation, greatly improves the convenience and efficiency of operation during emergency rescue, has strong feasibility and reliability, and high durability, ensuring that it can quickly and accurately perform its functions during emergency rescue, and provides strong support for rescue work.
[0027] When the ladder 2 is placed in the protective cover 1, the trigger member placed on the ladder 2 contacts the collision end 35 of the switch plate 32, and the switch plate 32 is rotated by utilizing the lever principle, and the trigger end 34 of the switch plate 32 is separated from the trigger safety switch 31, indicating that the ladder 2 is placed in place. The trigger structure is simple, safe, durable and reliable.
[0028] The triggering member is a crosspiece 21. The crosspiece 21 can be a stepping crosspiece of the lowest section of the ladder 2. The structure of the ladder 2 itself is used as the triggering member, and no additional components need to be provided, which saves costs.
[0029] The trigger end 34 of the switch plate 32 is provided with a counterweight 36. When the safety switch 31 is triggered, the gravity of the counterweight 36 can be converted into sufficient trigger force on the switch plate 32 to trigger the safety switch 31.
[0030] The counterweight block 36 is detachably mounted on the switch plate 32. Specifically, the counterweight block 36 is bolted to the top of the switch plate 32. The number and weight of the counterweight block 36 can be adjusted according to the weight of the ladder 2, the installation position of the switch plate 32, and the sensitivity of the safety switch 31 to adapt to different situations, and will not fail due to long-term non-use.
[0031] The safety switch 31 is installed outside the shield 1 through the connecting plate 311, the trigger end 34 of the switch plate 32 is located outside the shield 1, and the collision end 35 of the switch plate 32 is located inside the shield 1. Installing the safety switch 31 outside the shield 1 is convenient for maintenance, installation and replacement.
[0032] The safety switch 31 is a UKS switch.
[0033] The ladder 2 is a fixed ladder, a telescopic ladder or a folding ladder.
[0034] The safety switch 31 is connected to the alarm system of the elevator. When the safety switch 31 is triggered, a signal is sent to the alarm system of the elevator, and the alarm system of the elevator sends an alarm to notify all personnel inside and outside the car that the ladder 2 has been enabled to prevent possible accidental injuries.
[0035] The parts not described in detail in the present invention are prior art and thus will not be described in detail here.
Claims
1. A switch trigger device for a car top rescue ladder, comprising a top opening protective cover (1), a ladder (2) being arranged inside the protective cover (1), characterized in that: The ladder (2) is provided with a trigger, and the protective cover (1) is provided with a switch assembly (3); the switch assembly (3) comprises a safety switch (31) and a switch plate (32); the switch plate (32) is rotatably connected to the protective cover (1) via a rotating shaft (33); one end of the switch plate (32) is located above the safety switch (31) as a trigger end (34), and the other end of the switch plate (32) is located below the trigger as a collision end (35); when the ladder (2) is stored in the protective cover (1) until the trigger contacts the collision end (35) of the switch plate (32), the trigger end (34) of the switch plate (32) is separated from the safety switch (31); when the ladder (2) is moved out of the protective cover (1) and the trigger contacts the collision end (35) of the switch plate (32), the trigger end (34) of the switch plate (32) triggers the safety switch (31).
2. The switch trigger device for the car top rescue ladder according to claim 1 is characterized in that: The triggering member is a horizontal piece (21).
3. The switch trigger device for the car top rescue ladder according to claim 1 is characterized in that: A counterweight block (36) is provided at the trigger end (34) of the switch plate (32).
4. The switch trigger device for the car top rescue ladder according to claim 3 is characterized in that: The counterweight block (36) is detachably mounted on the switch plate (32).
5. The switch trigger device for the car top rescue ladder according to claim 1 is characterized in that: The safety switch (31) is installed outside the protective cover (1) via a connecting plate (311), a trigger end (34) of the switch plate (32) is located outside the protective cover (1), and a collision end (35) of the switch plate (32) is located inside the protective cover (1).
6. The switch trigger device for the car top rescue ladder according to claim 1 is characterized in that: The safety switch (31) is a UKS switch.
7. The switch trigger device for the car top rescue ladder according to claim 1 is characterized in that: The ladder (2) is a fixed ladder, a telescopic ladder or a folding ladder.
8. The switch trigger device for the car top rescue ladder according to claim 1 is characterized in that: The safety switch (31) is connected to the alarm system of the elevator.