Firefighter elevator with machine room

Abstract

The utility model relates to a fireman elevator with a machine room, which comprises a support frame, an elevator car fixed at the upper end of the support frame, a brake mechanism fixed on the side surface of the elevator car and a suspension mechanism fixed at the upper end of the support frame. The hydraulic device is driven by the kinetic energy of the lift car to brake the lift car, so that the safety of the fireman lift is greatly improved, and the lift car can be effectively prevented from rushing to the top and falling under extreme conditions.

Description

Technical Field

[0001] The utility model relates to the field of special equipment, in particular to an engine-room fireman's lift. Background Art

[0002] In high-rise buildings, elevators play an indispensable role as important vertical transportation tools. Especially in the field of fire fighting, fireman's lifts provide crucial passageways for firefighters' rescue work in emergencies such as fires. Currently, the elevators available on the market are usually equipped with various safety devices to ensure safety under normal operation and general faults. However, under extremely harsh conditions, such as when the entire machine suddenly loses power and other safety devices fail simultaneously, the existing elevator braking system may not be able to effectively prevent the car from overshooting and falling. Once this situation occurs, it will pose an extremely serious threat to the lives of passengers in the elevator and firefighters participating in the rescue, and will also greatly affect the efficiency and effectiveness of the rescue work. Generally speaking, there are still some deficiencies in the existing fireman's lifts in the field of fire fighting equipment. For example, the patent with the publication number CN205442339U discloses a fire elevator, and this device still has the following deficiencies in the field of elevator technology: under extremely harsh conditions, such as when the entire machine suddenly loses power and other safety devices fail simultaneously, it cannot prevent the car from overshooting and falling. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an engine-room fireman's lift, which solves the problems existing in the existing technology. Through a carefully designed braking mechanism, when the entire machine loses power and the rest of the safety devices fail, the kinetic energy of the car can be used to drive a hydraulic device to brake the car, effectively preventing the car from overshooting and falling in extreme situations, and greatly improving the safety of the fireman's lift.

[0005] (2) Technical Solutions

[0006] To achieve the above purpose, the utility model provides the following technical solutions: An engine-room fireman's lift includes a support frame, a car fixed to the upper end of the support frame, a braking mechanism fixed to the side of the car, and a suspension mechanism fixed to the upper end of the support frame;

[0007] The braking mechanism includes a starting plate fixed on the car, a driving support fixed on the starting plate, a driving wheel fixed on the driving support, a hydraulic brake fixed at the upper end of the starting plate, a first gear fixed on the right side of the driving wheel, a deceleration support fixed on the side of the car, a speed reducer fixed at the upper end of the deceleration support, a second gear fixed on the input shaft of the speed reducer, a third gear fixed on the output shaft of the speed reducer, a hydraulic support fixed on the car, a gear pump fixed at the upper end of the hydraulic support, a fourth gear fixed on the side of the gear pump, a fuel tank fixed on the car, a first oil pipe connecting the fuel tank and the gear pump, and a second oil pipe connecting the gear pump and the hydraulic brake.

[0008] Preferably, the starting plate includes a fixing plate fixed on the side of the car, a spring fixed on the side of the fixing plate, a top plate fixed on the side of the spring, and an emergency braking wrench installed on the fixing plate.

[0009] Preferably, a fixing ring is arranged at the rear side of the top plate and connected to the emergency braking wrench.

[0010] Preferably, an opening is arranged at the center of the fixing plate, and a rotating shaft is arranged in the opening and connected to the emergency braking wrench.

[0011] (III) Beneficial effects

[0012] The purpose of the present utility model is to provide an organic room fireman elevator. This device utilizes the original kinetic energy of the car, which is amplified by the deceleration mechanism and then drives the hydraulic mechanism for braking. Through the setting of this new type of organic room fireman elevator, the life safety of firemen can be guaranteed in extreme situations, ensuring that in the event of a complete power failure and the failure of other safety measures, the firemen can make a judgment and perform emergency braking. It is an innovative technology with broad application prospects. Description of the drawings

[0013] Figure 1 It is the overall schematic diagram of the present utility model.

[0014] Figure 2 It is the schematic diagram of the braking mechanism in the present utility model.

[0015] Figure 3 It is the schematic diagram of the starting plate in the present utility model.

[0016] Figure 4 It is the schematic diagram of the rear side of the top plate in the present utility model.

[0017] Figure 5 It is the schematic diagram of the fixing plate in the present utility model.

[0018] In the figure: 1 - support frame, 2 - car, 3 - braking mechanism, 301 - starting plate, 3011 - fixing plate, 3012 - spring, 3013 - top plate, 3014 - emergency braking wrench, 3015 - fixing ring, 3016 - opening, 3017 - rotating shaft, 302 - driving support, 303 - driving wheel, 304 - hydraulic brake, 305 - first gear, 306 - reduction support, 307 - reducer, 308 - second gear, 309 - third gear, 310 - hydraulic support, 311 - gear pump, 312 - fourth gear, 313 - fuel tank, 314 - first oil pipe, 315 - second oil pipe, 4 - suspension mechanism. Detailed implementation mode

[0019] The following will combine the attached drawings in the examples of the present utility model Figure 1 - attached drawings Figure 5 The technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 efforts shall fall within the protection scope of the present utility model.

[0020] As Figure 1 shown, the present utility model provides a technical solution: an organic room fireman's elevator, including a support frame 1, a car 2 fixed to the upper end of the support frame 1, a braking mechanism 3 fixed to the side of the car 2, and a suspension mechanism 4 fixed to the upper end of the support frame 1; the support frame 1 provides a stable support structure for the entire elevator system, ensuring that important components such as the car 2, the braking mechanism 3, and the suspension mechanism 4 can be firmly installed on its upper end, bearing various loads during the operation of the elevator, and ensuring the overall stability and safety of the elevator. The car 2 serves as a space for carrying passengers and goods, providing a safe and comfortable transportation environment for users, and is also a carrier for installing key components such as the braking mechanism 3. The braking mechanism 3 can quickly stop the elevator in case of an emergency. The suspension mechanism 4 is responsible for suspending the car 2 on the support frame 1 and realizing the up and down movement of the car through cooperation with other components.

[0021] As Figure 2As shown in the figure, the braking mechanism 3 includes a starting plate 301 fixed on the car 2, a driving bracket 302 fixed on the starting plate 301, a driving wheel 303 fixed on the driving bracket 302, a hydraulic brake 304 fixed at the upper end of the starting plate 301, a first gear 305 fixed on the right side of the driving wheel 303, a decelerating bracket 306 fixed on the side of the car 2, a speed reducer 307 fixed at the upper end of the decelerating bracket 306, a second gear 308 fixed on the input shaft of the speed reducer 307, a third gear 309 fixed on the output shaft of the speed reducer 307, a hydraulic bracket 310 fixed on the car 2, a gear pump 311 fixed at the upper end of the hydraulic bracket 310, a fourth gear 312 fixed on the side of the gear pump 311, a fuel tank 313 fixed on the car 2, a first oil pipe 314 connecting the fuel tank 313 and the gear pump 311, and a second oil pipe 315 connecting the gear pump 311 and the hydraulic brake 304; The starting plate 301 is used to push out the driving wheel 303 to make the driving wheel 303 contact with the guide rail in the elevator shaft. The driving bracket 302 is used to fix the driving wheel 303 so that it can rotate stably and cooperate with other components. The driving wheel 303, during the operation of the elevator, cooperates with other components to transfer the kinetic energy of the car 2. When braking is required, the driving wheel 303 is pushed out by the starting plate 301 to transfer the kinetic energy to the braking system. The hydraulic brake 304 is the core component of the braking mechanism. The hydraulic brake 304 is fixed on both sides of the elevator shaft guide rail and is the final hydraulic actuator. The hydraulic cylinder inside will push the brake pads to clamp the guide rail to achieve braking. The first gear 305 cooperates with the driving wheel 303 and transfers the kinetic energy to the subsequent decelerating device through gear transmission. The decelerating bracket 306 fixes the speed reducer 307 and provides a stable installation position for the speed reducer 307. The speed reducer 307 receives the kinetic energy through the second gear 308 on the input shaft. After deceleration, it amplifies the torque through the third gear 309 on the output shaft and transfers it to other components. The hydraulic bracket 310 fixes the gear pump 311 to ensure that the gear pump 311 remains stable during operation. The gear pump 311 pumps out the hydraulic oil in the fuel tank 313 through the rotation of the gears and transports it to the hydraulic brake 304 through the first oil pipe 314 and the second oil pipe 315 to provide hydraulic power for the braking mechanism 3. The fourth gear 312 cooperates with other gears and participates in the transfer and conversion of kinetic energy. The fuel tank 313 stores the hydraulic oil and provides the working medium for the gear pump 311. The first oil pipe 314 connects the fuel tank 313 and the gear pump 311 and transports the hydraulic oil from the fuel tank 313 to the gear pump 311. The second oil pipe 315 connects the gear pump 311 and the hydraulic brake 304 and transports the high-pressure hydraulic oil output by the gear pump 311 to the hydraulic brake 304 to generate braking force.

[0022] As Figure 3As shown in the figure, the starting board 301 includes a fixing plate 3011 fixed to the side of the car 2, a spring 3012 fixed to the side of the fixing plate 3011, a top plate 3013 fixed to the side of the spring 3012, and an emergency brake wrench 3014 installed on the fixing plate 3011; the fixing plate 3011, fixed to the side of the car 2, provides an installation basis for other components. The spring 3012 pushes out the driving wheel 303 during the braking process and continuously applies pressure to the driving wheel 303, so that the driving wheel 303 has sufficient friction to drive the gear pump 311. The top plate 3013, in cooperation with the spring 3012, triggers the operation of the braking system through interaction with other components during emergency braking. The emergency brake wrench 3014 provides an operating device for manual emergency braking. In an emergency, such as when the whole machine loses power and other safety devices fail, the operator can start the braking mechanism by pulling the emergency brake wrench 3014 to ensure the safe stop of the car.

[0023] As Figure 4 As shown in the figure, a fixing ring 3015 is provided at the rear side of the top plate 3013 and is connected to the emergency brake wrench 3014. Usually, the emergency brake wrench 3014 locks the fixing ring 3015.

[0024] As Figure 5 As shown in the figure, an opening 3016 is provided at the center of the fixing plate 3011, and a rotating shaft 3017 is arranged in the opening 3016 and is connected to the emergency brake wrench 3014. In an emergency, after pulling the emergency brake wrench 3014, the emergency brake wrench 3014 will rotate around the rotating shaft 3017, so that the top plate 3013 is pushed out by the spring 3012, triggering the braking action.

[0025] Working principle:

[0026] In an emergency, the firefighter pulls the emergency brake wrench 3014, and the emergency brake wrench will disengage from the fixing ring 3015 behind the top plate 3013. At this time, the spring 3012 will push out the top plate 3013, and the driving wheel 303 will contact the guide rail and start to rotate rapidly. At this time, the first gear 305 and the second gear 308 are engaged, and the torque of the driving wheel 303 drives the gear pump 311 to rotate after being amplified by the reducer 307. The hydraulic oil is pumped from the fuel tank 313 into the hydraulic brake 304, and the hydraulic brake 304 clamps the guide rail for braking.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A firefighter elevator with an engine room, characterized in that: It comprises a support frame (1), a car (2) fixed to the upper end of the support frame (1), a braking mechanism (3) fixed to the side of the car (2), and a suspension mechanism (4) fixed to the upper end of the support frame (1); The braking mechanism (3) comprises a starting plate (301) fixed on the car (2), an active bracket (302) fixed on the starting plate (301), a driving wheel (303) fixed on the active bracket (302), a hydraulic brake (304) fixed on the upper end of the starting plate (301), a first gear (305) fixed on the right side of the driving wheel (303), a reduction bracket (306) fixed on the side of the car (2), a reducer (307) fixed on the upper end of the reduction bracket (306), and a first gear (305) fixed on the input shaft of the reducer (307). a second gear (308) on the car (2), a third gear (309) fixed on the output shaft of the reducer (307), a hydraulic support (310) fixed on the car (2), a gear pump (311) fixed on the upper end of the hydraulic support (310), a fourth gear (312) fixed on the side of the gear pump (311), an oil tank (313) fixed on the car (2), a first oil pipe (314) connecting the oil tank (313) and the gear pump (311), and a second oil pipe (315) connecting the gear pump (311) and the hydraulic brake (304).

2. The firefighter elevator with an engine room according to claim 1, characterized in that: The starting plate (301) comprises a fixing plate (3011) fixed to the side of the car (2), a spring (3012) fixed to the side of the fixing plate (3011), a top plate (3013) fixed to the side of the spring (3012), and an emergency brake wrench (3014) installed on the fixing plate (3011).

3. The firefighter elevator with an engine room according to claim 2, characterized in that: A fixing ring (3015) is provided on the rear side of the top plate (3013) and is connected to the emergency brake wrench (3014).

4. The firefighter elevator with an engine room according to claim 2, characterized in that: An opening (3016) is provided at the center of the fixing plate (3011), and a rotating shaft (3017) is provided in the opening (3016) and is connected to the emergency brake wrench (3014).

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