Elevator with safety monitoring device

Abstract

The invention belongs to the technical field of elevators, and particularly relates to an elevator with a safety monitoring device, which comprises a hoistway, a lift car is arranged in an inner cavity of the hoistway, a mounting frame is fixed at the top of the inner cavity of the hoistway, a traction machine is fixed on the mounting frame, a guide wheel is rotatably mounted on one side of the mounting frame, and a steel wire rope is wound on the traction machine. One end of the steel wire rope is fixedly connected with the top of the lift car, the other end of the steel wire rope bypasses the guide wheel and is fixedly connected with a counterweight device, and a trigger assembly is arranged between the counterweight device and the lift car in an inner cavity of the hoistway. A set of mechanical triggering assembly and a safety switch are adopted, the triggering assembly is installed between the counterweight device and the lift car, and the safety switch is fixed to the side of the triggering assembly, so that faults of the lift car or the counterweight device can be effectively monitored when the lift car or the counterweight device deviates from the track to run, and the safety of the lift car or the counterweight device is improved. And in the bud state, the elevator stops running through the safety switch and the control system to wait for maintenance, so that the accident rate of elevator products is greatly reduced, and the safety performance of the elevator is improved.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, in particular to an elevator with a safety monitoring device. Background Art

[0002] With the continuous development of the elevator industry, the number of elevators has increased, and there are more and more high-rise and high-speed elevators. The safety of elevator use has been paid more attention to. For the energy-saving design of the elevator, the elevator car for passengers and goods is driven by the traction wheel to drive the wire rope to drive the car. The counterweight device is used on the other side of the traction wheel for balance. The car goes up and the counterweight device goes down. The two running directions are opposite, but when running to half of the lifting height, the running paths of the car and the counterweight device have a chance to intersect, and they run towards each other and move away from each other at the rated speed of the elevator. In order to ensure the smooth operation of the car and the counterweight device, the car and the counterweight device are provided with guide shoes to slide on the guide rails to avoid collision between the car and the counterweight device. However, due to wear or damage of the guide shoes, as well as deformation or displacement of the guide rails, it is very likely to cause the guide shoes to derail. After derailment, the car or counterweight device will move up and down freely and irregularly. Once it moves to the intersection position, a collision will occur, causing a major safety accident in which the counterweight device directly collides with the car, and the consequences are unimaginable.

[0003] Therefore, it is necessary to design a new technical solution. Summary of the invention

[0004] The object of the present invention is to provide an elevator with a safety monitoring device, which solves the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an elevator with a safety monitoring device, comprising a hoistway, a car is arranged in the inner cavity of the hoistway, a mounting frame is fixed to the top of the inner cavity of the hoistway, a traction machine is fixed to the mounting frame, a guide wheel is rotatably mounted on one side of the mounting frame, a steel wire rope is wound around the traction machine, one end of the steel wire rope is fixedly connected to the top of the car, and the other end of the steel wire rope is passed around the guide wheel and fixedly connected to a counterweight device;

[0006] The inner cavity of the shaft is placed between the counterweight device and the car and is provided with a trigger assembly, the trigger assembly includes side panels, there are two side panels, the two side panels are respectively fixed to the two side walls of the inner cavity of the shaft, a safety switch is fixed to the inner wall of one of the side panels, a safety contact is inserted into the outer wall of the safety switch, a safety touch rope is fixed to the outer end of the safety contact, and the outer end of the safety touch rope is fixedly connected to the inner wall of the other side side panel.

[0007] By adopting the above technical scheme, firstly, the traction machine can pull and release the steel wire ropes on both sides, so that the car and the counterweight device can perform relative movement of lifting and lowering. When the car or the counterweight device deviates from the original track, the car or the counterweight device will tilt, thereby touching the safety touch rope, so that the safety touch rope drives the safety contact to deviate from the corresponding safety switch. At this time, the safety switch will feedback the signal of the safety circuit to the elevator controller. At this time, the elevator controller will send a signal to the traction machine, so that the traction machine will perform emergency braking, stop the elevator and wait for maintenance, thereby greatly reducing the accident rate of elevator products and improving the safety performance of elevators.

[0008] As a preferred embodiment of the present invention, there are multiple safety switches, multiple safety touch ropes are placed between the car and the counterweight device, and multiple safety touch ropes are equidistantly and orderly arranged.

[0009] By adopting the above technical solution and setting a plurality of safety touch ropes, derailment of the car and the counterweight device can be detected immediately, making the handling more efficient.

[0010] As a preferred embodiment of the present invention, a first guide rail is fixed to the inner wall of the side plate corresponding to the side wall of the counterweight device, and an outer wall of the first guide rail is provided with a matching first guide shoe, which is fixed to the side wall of the counterweight device.

[0011] By adopting the above technical solution, the counterweight device can utilize the first guide shoe and the first guide rail to perform limited sliding during the lifting process, thereby ensuring the lifting stability of the counterweight device.

[0012] As a preferred embodiment of the present invention, second guide rails are fixed on both side walls of the inner cavity of the shaft corresponding to both side walls of the car, and the outer walls of the second guide rails are covered with matching second guide shoes, which are fixedly connected to the corresponding side walls of the car.

[0013] By adopting the above technical solution, in actual use, the second guide rail and the second guide shoe are used to limit the position, so that the car has high stability during the lifting process.

[0014] As a preferred embodiment of the present invention, adapted buffers are fixed at the bottom of the inner cavity of the hoistway corresponding to the bottom of the counterweight device and the bottom of the car.

[0015] By adopting the above technical solution, the buffer is utilized to achieve buffering with the counterweight device and the car.

[0016] As a preferred embodiment of the present invention, the signal output end of the safety switch is connected to the signal input end of the elevator controller, and the signal output end of the elevator controller is connected to the signal input end of the traction machine.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention adopts a set of mechanical trigger components and safety switches. The trigger component is installed between the counterweight device and the car, and the safety switch is fixed on the side of the trigger component. When the car or the counterweight device deviates from the trajectory, it can effectively monitor its failure and stop the elevator through the safety switch and control system when it is still in the embryonic stage, waiting for maintenance, thereby greatly reducing the accident rate of elevator products and improving the safety performance of elevators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of an elevator with a safety monitoring device according to the present invention;

[0021] Figure 2 This is a schematic diagram of a top view of an elevator with a safety monitoring device according to the present invention;

[0022] Figure 3 It is a schematic diagram of a derailment top view of a car and a counterweight device of an elevator with a safety monitoring device according to the present invention;

[0023] Figure 4 It is an enlarged structural schematic diagram of B of an elevator with a safety monitoring device of the present invention;

[0024] Figure 5 The present invention discloses an operation diagram of an elevator with a safety monitoring device.

[0025] In the figure:

[0026] 1. Hoistway; 11. Car; 12. Mounting frame; 13. Traction machine; 14. Guide wheel; 15. Wire rope; 16. Counterweight device; 17. First guide shoe; 18. First guide rail;

[0027] 2. Side panel; 21. Safety switch; 22. Safety touch rope; 23. Safety contact; 24. Wire;

[0028] 3. Buffer;

[0029] 4. second guide shoe; 41. second guide rail;

[0030] 5. Elevator controller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The models of electrical appliances provided in the present invention are only for reference, and different models of electrical appliances with the same functions can be replaced according to actual usage.

[0034] See also Figure 1-5 The present invention provides a technical solution: an elevator with a safety monitoring device, comprising a shaft 1, a car 11 is arranged in the inner cavity of the shaft 1, a mounting frame 12 is fixed to the top of the inner cavity of the shaft 1, a traction machine 13 is fixed to the mounting frame 12, a guide wheel 14 is rotatably mounted on one side of the mounting frame 12, a steel wire rope 15 is wound around the traction machine 13, one end of the steel wire rope 15 is fixedly connected to the top of the car 11, and the other end of the steel wire rope 15 is passed around the guide wheel 14 and fixedly connected to a counterweight device 16;

[0035] The inner cavity of the hoistway 1 is placed between the counterweight device 16 and the car 11, and a trigger assembly is provided. The trigger assembly includes a side plate 2, and the number of the side plates 2 is two. The two side plates 2 are respectively fixed to the two side walls of the inner cavity of the hoistway 1, and a safety switch 21 is fixed to the inner wall of one of the side plates 2, and a safety contact 23 is plugged into the outer wall of the safety switch 21. A safety touch rope 22 is fixed to the outer end of the safety contact 23, and the outer end of the safety touch rope 22 is fixedly connected to the inner wall of the other side side plate 2;

[0036] The elevator controller 5 is fixed to one side of the top of the mounting frame 12 , and the safety switch 21 is connected to the elevator controller 5 through a wire 24 .

[0037] The signal output terminal of the safety switch 21 is connected to the signal input terminal of the elevator controller 5 , and the signal output terminal of the elevator controller 5 is connected to the signal input terminal of the traction machine 13 .

[0038] It should be noted that the counterweight device 16 is composed of a fixed frame and a plurality of counterweight blocks filled inside.

[0039] In actual use, first, the traction machine 13 can work to pull and release the steel wire ropes 15 on both sides, so that the car 11 and the counterweight device 16 can perform relative movement of lifting and lowering. When the car 11 or the counterweight device 16 deviates from the original track, the car 11 or the counterweight device 16 tilts, thereby touching the safety touch rope 22, so that the safety touch rope 22 drives the safety contact 23 to deviate from the corresponding safety switch 21. At this time, the safety switch 21 will feed back the signal of the safety circuit to the elevator controller 5. At this time, the elevator controller 5 will send a signal to the traction machine 13, so that the traction machine 13 performs emergency braking, stops the elevator from running, and waits for maintenance, thereby greatly reducing the accident rate of elevator products and improving the safety performance of the elevator.

[0040] Furthermore, adapted buffers 3 are fixed at the bottom of the inner cavity of the hoistway 1 corresponding to the bottom of the counterweight device 16 and the bottom of the car 11 , and the buffers 3 are used to provide buffering for the counterweight device 16 and the car 11 .

[0041] Furthermore, there are multiple safety switches 21, and multiple safety touch ropes 22 are placed between the car 11 and the counterweight device 16, and the multiple safety touch ropes 22 are arranged equidistantly and orderly. By setting up multiple safety touch ropes 22, derailment of the car 11 and the counterweight device 16 can be detected in the first time, making the handling more efficient.

[0042] like Figure 1 and 2 As shown; a first guide rail 18 is fixed to the inner wall of the side panel 2 corresponding to the side wall of the counterweight device 16, and an outer wall of the first guide rail 18 is provided with an adaptable first guide shoe 17, and the first guide shoe 17 is fixed to the side wall of the counterweight device 16, so that the counterweight device 16 can utilize the first guide shoe 17 and the first guide rail 18 to perform limited sliding during the lifting process, thereby ensuring the lifting stability of the counterweight device 16.

[0043] like Figure 1 and 2 As shown; second guide rails 41 are fixed to both side walls of the inner cavity of the hoistway 1 corresponding to the side walls of the car 11, and the outer wall of the second guide rail 41 is provided with a second guide shoe 4 adapted thereto, and the second guide shoe 4 is fixedly connected to the corresponding side wall of the car 11;

[0044] In actual use, the second guide rail 41 and the second guide shoe 4 are used to limit the position, so that the car 11 has high stability during the lifting process.

[0045] The implementation principle of an elevator with a safety monitoring device in the present application is as follows: in actual use, first, the traction machine 13 works to pull and release the steel wire ropes 15 on both sides, so that the car 11 and the counterweight device 16 can perform relative movement of lifting and lowering, and the first guide shoe 17 and the first guide rail 18 are used to limit sliding, so as to ensure the stability of the lifting and lowering of the counterweight device 16. At the same time, the second guide rail 41 and the second guide shoe 4 are used to limit the stability of the car 11 during the lifting process. When the car 11 or the counterweight device 16 deviates from the original track, the car 11 or the counterweight device 16 tilts, thereby touching the safety touch rope 22, so that the safety touch rope 22 drives the safety contact 23 to deviate from the corresponding safety switch 21. At this time, the safety switch 21 will feed back the signal of the safety circuit to the elevator controller 5, and the elevator controller 5 will send a signal to the traction machine 13, so that the traction machine 13 performs emergency braking, stops the elevator from running, and waits for maintenance, thereby greatly reducing the accident rate of the elevator product and improving the safety performance of the elevator.

[0046] In addition, the components included in the elevator with a safety monitoring device of the present invention are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. In the idle part of the device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adapted monitoring computers and power supplies, are connected through wires. The specific connection means should refer to the following working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An elevator with a safety monitoring device, comprising a hoistway (1), characterized in that: The inner cavity of the hoistway (1) is provided with a car (11), a mounting frame (12) is fixed on the top of the inner cavity of the hoistway (1), a traction machine (13) is fixed on the mounting frame (12), a guide wheel (14) is rotatably mounted on one side of the mounting frame (12), a steel wire rope (15) is wound around the traction machine (13), one end of the steel wire rope (15) is fixedly connected to the top of the car (11), and the other end of the steel wire rope (15) is passed around the guide wheel (14) and is fixedly connected to a counterweight device (16); The inner cavity of the shaft (1) is provided with a trigger assembly between the counterweight device (16) and the car (11), and the trigger assembly comprises a side panel (2). There are two side panels (2), and the two side panels (2) are respectively fixed to the two side walls of the inner cavity of the shaft (1). A safety switch (21) is fixed to the inner wall of one of the side panels (2), and a safety contact (23) is inserted into the outer wall of the safety switch (21). A safety touch rope (22) is fixed to the outer end of the safety contact (23), and the outer end of the safety touch rope (22) is fixedly connected to the inner wall of the other side of the side panel (2).

2. An elevator with a safety monitoring device according to claim 1, characterized in that: The number of the safety switches (21) is multiple, the multiple safety touch ropes (22) are placed between the car (11) and the counterweight device (16), and the multiple safety touch ropes (22) are arranged in an equidistant and orderly manner.

3. An elevator with a safety monitoring device according to claim 1, characterized in that: A first guide rail (18) is fixed to the inner wall of the side plate (2) corresponding to the side wall of the counterweight device (16); an outer wall of the first guide rail (18) is sleeved with a matching first guide shoe (17); and the first guide shoe (17) is fixed to the side wall of the counterweight device (16).

4. An elevator with a safety monitoring device according to claim 1, characterized in that: Second guide rails (41) are fixed to both side walls of the inner cavity of the hoistway (1) corresponding to the side walls of the car (11); the outer walls of the second guide rails (41) are sleeved with matching second guide shoes (4); the second guide shoes (4) are fixedly connected to the corresponding side walls of the car (11).

5. An elevator with a safety monitoring device according to claim 1, characterized in that: Adaptive buffers (3) are fixed at the bottom of the inner cavity of the hoistway (1) corresponding to the bottom of the counterweight device (16) and the bottom of the car (11).

6. An elevator with a safety monitoring device according to claim 1, characterized in that: The signal output end of the safety switch (21) is connected to the signal input end of the elevator controller (5), and the signal output end of the elevator controller (5) is connected to the signal input end of the traction machine (13).

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