Elevator weighing overload protection device

Abstract

The utility model discloses an elevator weighing overload protection device, which relates to the technical field of elevator weighing overload protection and comprises an elevator car, a weighing base plate is arranged under one side of the elevator car, a weighing sensor is fixedly mounted in the middle of the top end of one side of the weighing base plate, and a buffer groove is formed in one side of the weighing base plate. A sliding limiting block is arranged between the lift car and the weighing base plate, a buffer spring at the bottom end of the sliding limiting block is connected with the weighing base plate, certain buffer connection is achieved, when the lift car is overloaded, a power controller can control starting of a second positive magnetic block at the moment, magnetic power-on connection is achieved at the moment, and the lift car is prevented from being overloaded. At the moment, positive magnetic force is applied to a second positive magnetic block and a first positive magnetic block, a certain buffering effect is further achieved through the principle that like poles repel each other, a buffering spring is assisted to achieve the force buffering effect, and the overload protection effect of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator weighing overload protection, in particular to an elevator weighing overload protection device. Background Art

[0002] An elevator is a vertical lift powered by an electric motor, equipped with a box-shaped gondola for carrying passengers or goods in multi-story buildings. There are also step-type ones, with tread plates installed on tracks and running continuously, commonly known as escalators or moving sidewalks. With the development of society, elevators are widely used in buildings, and elevator safety issues have received increasing attention. The existing elevator overload protection devices are mainly the weighing devices of the elevator. The weighing devices are mostly weighing sensors, and the weighing sensors are mostly arranged at the top and bottom of the car. Once the weighing sensor is damaged, the overload protection fails to work, and accidents may occur due to overload, with low usage safety. Therefore, we design an elevator weighing overload protection device to improve the safety of elevator equipment usage. Content of the Utility Model

[0003] The purpose of the utility model is to provide an elevator weighing overload protection device.

[0004] To solve the above technical problems, the utility model provides the following technical solution: an elevator weighing overload protection device, including a car, a weighing base plate is arranged directly below one side of the car, a weighing sensor is fixedly installed in the middle of the top end of one side of the weighing base plate, a buffer groove is opened inside one side of the weighing base plate, a buffer spring is fixedly connected to the bottom end inside the buffer groove, a sliding limit block is fixedly connected to the top end of one side of the buffer spring, a first positive magnetic block is fixedly installed at the top end of one side of the weighing base plate, a second positive magnetic block is fixedly installed at the bottom end of one side of the car, a power controller is fixedly installed inside one side of the car, a power connection line is fixedly connected between the power controller and the second positive magnetic block, an information receiver is fixedly installed inside one side of the car close to the power controller, and an information transmitter is fixedly connected between the information receiver and the power controller.

[0005] Preferably, the positions of the buffer groove and the buffer spring correspond to each other one by one. The top end of one side of the sliding limit block is fixedly connected to the car. The number of the sliding limit blocks is several, and several sliding limit blocks are symmetrically distributed on both sides of the bottom end of the car. The connection relationship between the sliding limit block and the buffer groove is a sliding connection.

[0006] Preferably, the second positive magnetic block is located directly below the first positive magnetic block, and the positions of the first positive magnetic block and the second positive magnetic block correspond one by one. The connection relationship between the power controller and the second positive magnetic block is a power control connection, and the connection relationship between the information receiver and the power controller is an information transmission connection.

[0007] Preferably, a buffer airbag is provided between the car and the weighing base plate. An inflator is fixedly installed at the top end of one side of the weighing base plate. An inflation connector is fixedly installed at the top end of one side of the inflator. An inflation pipe is connected between the inflation connector and the buffer airbag. A first power control valve is fixedly installed at the top end of one side of the inflation pipe. A first power control block is fixedly installed at the top end of one side of the first power control valve.

[0008] Preferably, an exhaust pipe is connected to the top end of one side of the inflation connector. A second power control valve is provided at the top end of one side of the exhaust pipe. A second power control block is fixedly connected to the top end of one side of the second power control valve.

[0009] Preferably, the connection relationship between the first power control block and the inflator is a power control connection, and the connection relationship between the second power control block and the inflator is a power control connection.

[0010] Compared with the related art, the elevator weighing overload protection device provided by the present utility model has the following beneficial effects:

[0011] 1. The elevator weighing overload protection device provided by the present utility model, by setting a sliding limit block between the car and the weighing base plate, is connected to the weighing base plate through a buffer spring at the bottom end of the sliding limit block, playing a certain buffer connection role. When the car is overloaded, at this time, the power controller can control the activation of the second positive magnetic block. At this time, the magnetic force is electrically connected. At this time, both the second positive magnetic block and the first positive magnetic block have positive magnetic force. Through the principle of like-sex repulsion, it further plays a certain buffer effect, assisting the buffer spring to achieve the effect of buffering force, and further improving the overload protection effect of the device.

[0012] 2. The elevator weighing overload protection device provided by the present utility model, by setting a buffer airbag between the car and the weighing base plate, when overloading occurs, at this time, the inflator is directly triggered to open, and through the inflation connector, it is directly connected to the inflation pipe to inflate the inside of the buffer airbag. The opening of the first power control valve is controlled by the first power control block to start the operation. When subsequent force unloading is required, the second power control valve can be opened through the second power control block, and the exhaust operation is realized by using the exhaust pipe. Description of the Drawings

[0013] Figure 1Schematic three-dimensional structure diagram of the present utility model;

[0014] Figure 2 Schematic side elevation structure diagram of the car and the weighing base plate of the present utility model;

[0015] Figure 3 Schematic side view structure diagram of the connection between the car and the weighing base plate of the present utility model;

[0016] Figure 4 Schematic structure diagram of the inflation device of the present utility model.

[0017] Reference numerals in the figure: 1, car; 2, weighing base plate; 3, weighing sensor; 4, buffer groove; 5, buffer spring; 6, sliding limit block; 7, first positive magnetic block; 8, second positive magnetic block; 9, power controller; 10, power connection line; 11, information receiver; 12, information transmitter; 13, buffer airbag; 14, inflater; 15, inflation connector; 16, inflation pipe; 17, first power control valve; 18, first power control block; 19, air release pipe; 20, second power control valve; 21, second power control block. Detailed implementation mode

[0018] Embodiment 1:

[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution: an elevator weighing overload protection device, including a car 1, a weighing base plate 2 is arranged directly below one side of the car 1, a weighing sensor 3 is fixedly installed in the middle of the top end of one side of the weighing base plate 2, a buffer groove 4 is opened inside one side of the weighing base plate 2, a buffer spring 5 is fixedly connected to the bottom end inside the buffer groove 4, a sliding limit block 6 is fixedly connected to the top end of one side of the buffer spring 5, a first positive magnetic block 7 is fixedly installed at the top end of one side of the weighing base plate 2, a second positive magnetic block 8 is fixedly installed at the bottom end of one side of the car 1, a power controller 9 is fixedly installed inside one side of the car 1, a power connection line 10 is fixedly connected between the power controller 9 and the second positive magnetic block 8, an information receiver 11 is fixedly installed inside one side of the car 1 close to the power controller 9, an information transmitter 12 is fixedly connected between the information receiver 11 and the power controller 9, the positions of the buffer groove 4 and the buffer spring 5 correspond one by one, the top end of one side of the sliding limit block 6 is fixedly connected to the car 1, the number of the sliding limit blocks 6 is several, several sliding limit blocks 6 are symmetrically distributed on both sides of the bottom end of the car 1, the connection relationship between the sliding limit block 6 and the buffer groove 4 is a sliding connection, the second positive magnetic block 8 is located directly below the first positive magnetic block 7, the positions of the first positive magnetic block 7 and the second positive magnetic block 8 correspond one by one, the connection relationship between the power controller 9 and the second positive magnetic block 8 is a power control connection, and the connection relationship between the information receiver 11 and the power controller 9 is an information transmission connection.

[0020] In an embodiment, by providing a sliding limit block 6 between the car 1 and the weighing base plate 2, and connecting it to the weighing base plate 2 through a buffer spring 5 at the bottom end of the sliding limit block 6, a certain buffer connection is achieved. When the car 1 is overloaded, the power controller 9 at this time can control the activation of the second positive magnetic block 8. At this time, the magnetic force is electrically connected. Both the second positive magnetic block 8 and the first positive magnetic block 7 have positive magnetic forces. Through the principle of like-sex repulsion, a certain buffer effect is further achieved, assisting the buffer spring 5 to achieve the effect of buffering force, and further improving the overload protection effect of the device.

[0021] Embodiment 2:

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: an elevator weighing overload protection device, which includes a buffer airbag 13 provided between the car 1 and the weighing base plate 2. A gas inflator 14 is fixedly installed at the top end of one side of the weighing base plate 2. An air inflation connector 15 is fixedly installed at the top end of one side of the gas inflator 14. An air inflation pipe 16 is connected between the air inflation connector 15 and the buffer airbag 13. A first power control valve 17 is fixedly installed at the top end of one side of the air inflation pipe 16. A first power control block 18 is fixedly installed at the top end of one side of the first power control valve 17. An air discharge pipe 19 is connected to the top end of one side of the air inflation connector 15. A second power control valve 20 is provided at the top end of one side of the air discharge pipe 19. A second power control block 21 is fixedly connected to the top end of one side of the second power control valve 20. The connection relationship between the first power control block 18 and the gas inflator 14 is a power control connection. The connection relationship between the second power control block 21 and the gas inflator 14 is a power control connection.

[0023] In an embodiment, by providing a buffer airbag 13 between the car 1 and the weighing base plate 2, when overload occurs, the gas inflator 14 at this time is directly triggered to open, and through the air inflation connector 15, it is directly connected to the air inflation pipe 16 to inflate the inside of the buffer airbag 13. The opening of the first power control valve 17 is controlled by the first power control block 18 for the opening operation. When subsequent force relief is required, the second power control block 21 can be used to open the second power control valve 20, and the air discharge operation is achieved by using the air discharge pipe 19.

[0024] Working principle:

[0025] By setting a sliding limit block 6 between the car 1 and the weighing base plate 2, and connecting it to the weighing base plate 2 through the buffer spring 5 at the bottom of the sliding limit block 6, a certain buffer connection is achieved. When the car 1 is overloaded, the power controller 9 at this time can control the activation of the second positive magnetic block 8. At this time, the magnetic force is electrically connected. Both the second positive magnetic block 8 and the first positive magnetic block 7 have positive magnetic forces. Through the principle of like-sex repulsion, a certain buffer effect is further achieved, assisting the buffer spring 5 to achieve the effect of buffering force, and further improving the overload protection effect of the device;

[0026] By setting a buffer airbag 13 between the car 1 and the weighing base plate 2, when overload occurs, the inflator 14 at this time is directly triggered to open, and the internal inflation operation of the buffer airbag 13 is carried out by directly connecting the inflation connector 15 to the inflation pipe 16. The opening of the first power control valve 17 is controlled by the first power control block 18 to carry out the opening operation. When subsequent force unloading is required, the effect of opening the second power control valve 20 can be achieved through the second power control block 21, and the air release operation is realized by using the air release pipe 19.

Claims

1. An elevator weighing overload protection device, including a car (1), a weighing base plate (2) is arranged directly below one side of the car (1), and it is characterized in that: In the middle of the top end of one side of the weighing base plate (2), a weighing sensor (3) is fixedly installed. Inside one side of the weighing base plate (2), a buffer groove (4) is formed. At the bottom end inside the buffer groove (4), a buffer spring (5) is fixedly connected. At the top end of one side of the buffer spring (5), a sliding limit block (6) is fixedly connected. At the top end of one side of the weighing base plate (2), a first positive magnetic block (7) is fixedly installed. At the bottom end of one side of the car (1), a second positive magnetic block (8) is fixedly installed. Inside one side of the car (1), a power controller (9) is fixedly installed. A power connection line (10) is fixedly connected between the power controller (9) and the second positive magnetic block (8). Inside one side of the car (1) near the power controller (9), an information receiver (11) is fixedly installed. An information transmitter (12) is fixedly connected between the information receiver (11) and the power controller (9).

2. The elevator weighing overload protection device according to claim 1, characterized in that The positions of the buffer groove (4) and the buffer spring (5) correspond one by one. At the top end of one side of the sliding limit block (6), it is fixedly connected to the car (1). The number of the sliding limit blocks (6) is several, and several of the sliding limit blocks (6) are symmetrically distributed on both sides of the bottom end of the car (1). The connection relationship between the sliding limit block (6) and the buffer groove (4) is a sliding connection.

3. The elevator weighing overload protection device according to claim 1, characterized in that, The second positive magnetic block (8) is located directly below the first positive magnetic block (7). The positions of the first positive magnetic block (7) and the second positive magnetic block (8) correspond one by one. The connection relationship between the power controller (9) and the second positive magnetic block (8) is a power control connection. The connection relationship between the information receiver (11) and the power controller (9) is an information transmission connection.

4. An elevator weighing overload protection device according to claim 1, characterized in that, A buffer airbag (13) is arranged between the car (1) and the weighing base plate (2). At the top end of one side of the weighing base plate (2), an inflator (14) is fixedly installed. At the top end of one side of the inflator (14), an inflation connector (15) is fixedly installed. An inflation pipe (16) is connected between the inflation connector (15) and the buffer airbag (13). At the top end of one side of the inflation pipe (16), a first power control valve (17) is fixedly installed. At the top end of one side of the first power control valve (17), a first power control block (18) is fixedly installed.

5. An elevator weighing overload protection device according to claim 4, characterized in that, At the top end of one side of the inflation connector (15), an air discharge pipe (19) is connected. At the top end of one side of the air discharge pipe (19), a second power control valve (20) is arranged. At the top end of one side of the second power control valve (20), a second power control block (21) is fixedly connected.

6. The elevator weighing overload protection device according to claim 5, characterized in that, The connection relationship between the first power control block (18) and the inflator (14) is a power control connection. The connection relationship between the second power control block (21) and the inflator (14) is a power control connection.

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