Elevator safe operation system

Abstract

An elevator safe operation system comprises an elevator car; the driving part is connected with the elevator car and drives the elevator car to operate; the control unit is connected with the driving part and is used for controlling the driving of the driving part so as to control the ascending and descending of the elevator car; and a tilt detection unit provided on one horizontal plane of the elevator car, the tilt detection unit tilting to sense the tilt of the elevator car when the horizontal plane tilts with respect to the ground, and outputting a tilt detection result to the control unit, the control unit stops the ascending and descending of the elevator car on the basis of the detection result of the inclination. The elevator safe operation system can prevent the elevator from operating in an inclined state, and therefore the situation that the steel wire rope is separated from the groove due to inclined operation of the elevator car is effectively avoided.

Description

Technical Field

[0001] The utility model relates to a safe operation system of an elevator. Background Art

[0002] Common elevators include passenger elevators used in medium and high-rise buildings and freight elevators used for transporting goods in factories and other places.

[0003] Freight elevators are special equipment commonly used to transport goods in the production factories of major companies. Therefore, it is particularly important to ensure the effective use of freight elevators. The "Special Equipment Safety Law" stipulates that if there are risks in the use of special elevator equipment, they will face penalties such as suspension and fines. Unlike the passenger elevators we often use in our lives, freight elevators are relatively large in size and carry large tonnage of goods. Therefore, the structure of freight elevators is very different from that of passenger elevators. Common freight elevator door panels have one or two more layers than passenger elevators. Therefore, in the process of placing goods in the freight elevator, sometimes the goods are placed offside or the goods are placed unevenly and fall, causing the inner door panel of the freight elevator to be hit, which can easily cause the inner door panel of the freight elevator to be hit, and the car tilts, and the tilting of the car may cause the wire rope to slip out of the groove. In addition, the situation where the center of gravity of the elevator is offset due to the non-central placement of the goods is also likely to cause the freight elevator car to tilt, and the tilting of the car may cause the wire rope to slip out of the groove.

[0004] In addition, when passengers take the elevator, due to irregular actions such as jumping, the car may tilt and cause the wire rope to slip out of the groove. Utility Model Content

[0005] Therefore, there is an urgent need for an elevator safety operation system that can provide an elevator that can avoid running in a tilted state.

[0006] The utility model discloses an elevator safety operation system comprising: an elevator car; a driving unit connected to the elevator car and driving the elevator car to operate; a control unit connected to the driving unit and controlling the driving of the driving unit, thereby controlling the up and down movement of the elevator car; and a tilt detection unit, which is arranged on a horizontal plane of the elevator car. When the horizontal plane is tilted relative to the ground, the tilt detection unit tilts and senses the tilt of the elevator car, and outputs the tilt detection result to the control unit. The control unit stops the up and down movement of the elevator car based on the tilt detection result.

[0007] The utility model is completed based on the above problem. According to one aspect of the utility model, a safe operation system of an elevator can be provided, which can prevent the elevator from running in an inclined state, thereby effectively preventing the situation where the wire rope is out of the groove caused by the inclined operation of the elevator car. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1Schematic diagram showing the safe operation system of an elevator according to the present embodiment.

[0009] Figure 2 This is a functional block diagram showing the elevator safety operation system according to the present embodiment.

[0010] Figure 3 1 is a schematic diagram showing the connection of the tilt detection unit of the elevator safety operation system according to the present embodiment.

[0011] Main component symbols

[0012] Elevator safety operation system 1

[0013] Elevator car 10

[0014] Top 11

[0015] Bottom 12

[0016] Elevator door 13

[0017] Control unit 30

[0018] Uplink and downlink control module 310

[0019] Door opening and closing control module 320

[0020] Safety circuit 330

[0021] Operation unit 15

[0022] Tilt detection unit 17

[0023] Tips 19

[0024] Driving unit 50

[0025] Power supply unit 70 DETAILED DESCRIPTION

[0026] Hereinafter, in order to make the above-mentioned objects, features and advantages of the present invention more clear and easy to understand, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0027] Although many specific details are described in the following description to facilitate a full understanding of the present invention, the present invention can also be implemented in other ways described herein, and those skilled in the art can also implement the present invention without departing from the meaning of the present invention. The present invention is not limited to the specific embodiments disclosed below.

[0028] For the convenience of explanation, unless otherwise specified, components marked with the same reference numerals represent components having the same function, and thus their description may be omitted. In addition, in the drawings referred to below, in order to make the explanation easier to understand, the components are simplified or schematically shown, or some components are omitted. In addition, the size ratios between the components shown in the drawings do not necessarily represent the actual size ratios.

[0029] [Implementation Method 1]

[0030] As follows, refer to Figure 1 and Figure 2 , describing the elevator safety operation system 1 according to this embodiment.

[0031] Figure 1 Schematic diagram showing the elevator safety operation system 1 of this embodiment. Figure 1 As shown, the elevator safety operation system 1 of this embodiment includes an elevator car 10 , a control unit 30 , a driving unit 50 and a power supply unit 70 .

[0032] The elevator car 10 of this embodiment is in the shape of a box, and the internal space is used to carry goods or people. The elevator door 13 of the elevator car 10 can be a single door on one side, or two doors on two sides. For example, the elevator door 13 of the elevator car 10 is two doors that open toward two opposite doors. In addition, the elevator door 13 can be a double door that opens from the middle to the left and right sides, or a folding door that opens from one side to the other side. It can be understood that the utility model is not limited to this and can be designed according to needs.

[0033] The control unit 30 is connected to the driving unit 50, which specifically includes a motor (not shown), a pulley (not shown), a wire rope 51 and a counterweight 53. The wire rope 51 is connected to the pulley and the elevator car 10, and the pulley is connected to the motor. Under the control of the control unit 30, the motor drives the pulley to rotate, and the wire rope 51 drives the elevator car 10 and the counterweight 53 to move in the vertical reverse direction, so that the control unit 30 can control the up and down movement of the elevator car 10 through the driving unit 50.

[0034] like Figure 2 As shown, the control unit 30 includes an up-down control module 310, a door opening and closing control module 320, and a safety circuit 330. The up-down control module 310 is linked with the driving unit 50, so that the elevator car 10 can achieve up, down and parking. The door opening and closing control module 320 controls the opening and closing of the elevator door 13 of the elevator car 10. The safety circuit 330 is used to brake the elevator car 10 in an emergency.

[0035] The power supply unit 70 is connected to the driving unit 50 and the control unit 30 to supply power to both.

[0036] The elevator safety operation system 1 of this embodiment further includes an operating unit 15 provided in the elevator car 10, and the operating unit 15 receives operations from the user and sends instructions related to the operation to the control unit 30. The operating unit 15 generally includes a variety of function buttons, such as floor buttons, door opening buttons, door closing buttons, emergency call buttons, etc., and may further include other customized functions, such as a card swiping panel, a display screen, an intercom, etc. It is understood that the present invention is not limited thereto, and the function selection can be selected according to the needs, and the existing commercial products can also be selected.

[0037] The elevator safe operation system 1 of this embodiment further includes a tilt detection unit 17 provided in the elevator car 10. The tilt detection unit 17 is used to detect whether the elevator car 10 is in a tilted state. Figure 1 In the example shown, the tilt detection unit 17 is arranged on the upper surface of the top surface 11 of the elevator car 10 and is connected to the control unit 30 for communication, so that the tilt detection unit 17 sends the tilt state of the elevator car 10 to the control unit 30. The tilt detection unit 17 is, for example, a single-axis or dual-axis tilt sensor, a gyroscope or other attitude sensor. Under normal conditions, the top surface 11 of the elevator car 10 is horizontal relative to the ground. When the elevator car 10 tilts, the tilt detection unit 17 also tilts along with the top surface 11. At this time, the tilt detection unit 17 is present in at least one of the two mutually perpendicular horizontal axes of the top surface 11 and the vertical axis perpendicular to the top surface 11, which deviates from the axis where the axis originally is located (the tilt detection unit 17 is in a horizontal state). By measuring the change in the angle between the axes before and after the deviation, it is possible to determine whether the elevator car 10 is tilted and the degree of tilt. In addition, to avoid the safety circuit 330 being triggered even slightly, a threshold value can be set here, and the safety circuit 330 is triggered when the angle deviates by a specified value. The tilt detection unit 17 outputs the detection result of the tilt (for example, it can be angle information, posture information) to the control unit 30. Through the control of the control unit 30, the driving unit 50 stops the elevator car 10 in operation, or does not make the elevator car 10 go up or down even if it receives an instruction related to the up or down operation of the operating unit 15 from the user (in other words, an instruction related to the up and down movement of the elevator car 10). In addition, in the present embodiment, the tilt detection unit 17 is hidden and arranged on the upper surface of the top surface 11 of the elevator car 10 for aesthetics, but the utility model is not limited to this, and can also be arranged on the lower surface of the top surface 11 of the elevator car 10 facing the inside, and can also be arranged on the lower surface of the bottom surface 12 opposite to the top surface 11 of the elevator car 10. As long as it does not affect the normal operation of the elevator car 10, it can be arranged on any horizontal surface of the elevator car 10.

[0038] like Figure 3As shown, the tilt detection unit 17 is connected to the safety circuit 330, and the output end is connected to the normally closed relay 331 and the safety switch 332 of the safety circuit 330. When the safety switch 332 receives the tilt detection result from the tilt detection unit 17, the normally closed relay 331 is disconnected, thereby executing an emergency safety measure through the safety switch 332, for example, the safety circuit 330 makes the elevator car 10 in operation (moving) stop suddenly. Alternatively, when the elevator car 10 is not running, the safety circuit 330 is linked with the up and down control module 310 through the safety circuit 330, and even if an instruction related to the up or down operation of the operating unit 15 from the user (in other words, an instruction related to the up and down movement of the elevator car 10) is received, the safety circuit 330 also makes the up and down control module 310 not perform the up or down movement of the elevator car 10. In addition, when the elevator car 10 is not running yet, the safety circuit 330 can also be linked with the door opening and closing control module 320, and the safety circuit 330 prevents the door opening and closing control module 320 from closing the elevator door 13 of the elevator car 10 or opening the closed elevator door 13. For safety reasons, the elevator car 10 is usually moved up and down only after the elevator door 13 is closed, so it is also possible to avoid the elevator car 10 from moving up or down in a tilted state. In addition, the safety circuit 33 can also be linked with the up and down control module 310 and the door opening and closing control module 320 at the same time. Thus, through the above-mentioned method, it is possible to avoid tilting and safely ride the elevator car 10, thereby effectively avoiding the situation where the wire rope (not shown) at the pulley of the drive unit 50 is out of the groove due to the tilted operation of the elevator car 10.

[0039] The elevator safety operation system 1 of this embodiment further includes a prompting unit 19 disposed on the elevator car 10. The prompting unit 19 is connected to the control unit 30. When the safety circuit 330 determines that the elevator car 10 is tilted, the prompting unit 19 issues a prompt until the safety circuit 330 determines that the elevator car 10 is no longer tilted. The prompting unit 19 can use an audible and visual alarm, a buzzer, a horn, a warning light, and use an alarm sound, light, etc. to prompt the occupants, prompting the occupants to take measures to adjust the location and quantity of the goods, etc., until the prompting unit 19 cancels the prompt. The prompting unit 19 can be disposed at any position where the occupants can know that the prompting unit 19 issues a prompt. For example, the prompting unit 19 can be disposed on the inner wall of the elevator car 10, or on the wall of each floor outside the elevator car 10. In addition, the prompting unit 19 can also be formed as a whole with the operating unit 15.

Claims

1. An elevator safe operation system, characterized in that: include: Elevator car; A driving unit, which is connected to the elevator car and drives the elevator car to operate; A control unit connected to the driving unit and controlling the driving of the driving unit, thereby controlling the up and down movement of the elevator car; as well as a tilt detection unit, which is arranged on a horizontal plane of the elevator car, and when the horizontal plane is tilted relative to the ground, the tilt detection unit tilts to sense the tilt of the elevator car and outputs the detection result of the tilt to the control unit, The control unit stops the up and down movement of the elevator car based on the detection result of the tilt.

2. The elevator safe operation system according to claim 1, characterized in that: The control unit includes a safety circuit, and the safety circuit is connected to the driving unit. When the tilt detection unit outputs a detection result of the tilt, the safety circuit makes an emergency stop of the elevator car in operation, or the safety circuit keeps the elevator car, which is not in operation, from operating.

3. The elevator safe operation system according to claim 2, characterized in that: The control unit includes an up-down control module, which is connected to the driving unit and is used to control the up or down movement of the elevator car. When the elevator car is not running and the tilt detection unit outputs a tilt detection result, even if the control unit receives instructions related to the up and down movement of the elevator car, the safety circuit prevents the up and down control module from performing the up or down movement of the elevator car.

4. The elevator safe operation system according to claim 2, characterized in that: The control unit is provided with a door opening and closing control module, and the door opening and closing control module is used to control the opening and closing of the door. When the elevator car is not running and the tilt detection unit outputs a tilt detection result, even if the control unit receives instructions related to the up and down movement of the elevator car, the safety circuit causes the door opening and closing control module to keep the elevator door of the elevator car open or open the closed elevator door.

5. The elevator safe operation system according to claim 2, characterized in that: The safety circuit has a normally closed relay and a safety switch. When the safety circuit receives a detection result based on the tilt detection unit, the normally closed relay is disconnected, and the safety circuit executes emergency safety measures via the safety switch, so that the safety circuit makes the running elevator car stop suddenly, or the safety circuit keeps the non-running elevator car non-running.

6. The elevator safe operation system according to claim 1, characterized in that: The tilt detection unit determines whether the elevator car is tilted and the degree of tilt by detecting the change in the angle between the axes of at least one of two mutually perpendicular horizontal axes existing in the horizontal plane and a vertical axis perpendicular to the horizontal plane before and after deviation.

7. The elevator safe operation system according to claim 1, characterized in that: The horizontal plane is a top surface of the elevator car, and the inclination detection unit is provided on an upper surface of the top surface of the elevator car and in the elevator car.

8. The elevator safe operation system according to claim 1, characterized in that: The tilt detection unit is a posture sensor, and the posture sensor is a single-axis tilt sensor, a dual-axis tilt sensor, or a gyroscope.

9. The elevator safe operation system according to claim 2, characterized in that: A prompting unit is provided, and when the safety circuit determines that the elevator car is tilted, the prompting unit issues a prompt until the safety circuit determines that the elevator car is no longer tilted.

10. The elevator safe operation system according to claim 9, characterized in that: The prompting unit issues a prompt using at least one of an alarm sound and a light.

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