KR20200137856A - Garbage collection vehicle with hydraulic safety equipment - Google Patents

Abstract

The present invention relates to a garbage collection vehicle (1). The present invention aims to provide the garbage collection vehicle with a hydraulic safety apparatus which is able to prevent accidents. According to the present invention, the garbage collection vehicle (1) comprises: a loading box (3) mounted on the rear side of the vehicle (1) to load garbage; a collection box (4) elevatably mounted on the rear side of the loading box (3) to collect garbage; a hydraulic pressure unit (6) which drives the collection box (4); a first sensor (5) mounted on the loading box (3) to detect a signal; a second sensor (7) mounted on a worker′s work clothing to detect a signal; and a control unit (C) which receives the signal from the first sensor and the second sensor (5, 7), and stops the hydraulic pressure unit (6) of the collection box (4) in accordance with the positions of the sensors.

Description

Garbage collection vehicle with hydraulic safety equipment

The present invention relates to a garbage collection vehicle, and more particularly, by mounting a sensor in a hydraulically driven garbage collection box mounted on the garbage collection vehicle, and stopping the operation of the garbage collection box when the worker approaches the garbage collection box, It's about technology that can prevent getting caught.

In general, a garbage collection vehicle has a structure in which a garbage loading box is mounted at the rear of the vehicle, and the garbage collection box is mounted in the garbage loading box. In addition, the garbage collection box has a structure that moves up and down by hydraulic pressure. Therefore, when the garbage is loaded in the garbage collection box, the garbage collection box rises and the garbage is put into the garbage loading box.

However, since the garbage collection box is driven by a hydraulic device, a safety accident may occur in which a worker is caught in the gap between the garbage collection box and the vehicle during this process.

Such safety accidents have a problem in that the garbage collection work environment is poor enough to have occurred about 1,800 cases in the last 3 years.

Patent Application No. 10-2009-121710 (Name: device for preventing hand jamming in the volume-limited garbage input port for garbage collection system)

Accordingly, the present invention has been proposed to solve the above problem, and an object of the present invention is to provide a technology capable of preventing an operator from being caught in a gap during operation of a hydraulic garbage loading box mounted on a garbage collection vehicle.

The present invention has been proposed to solve the above problems, an embodiment of the present invention provides a garbage collection vehicle (1), the garbage collection vehicle (1) is mounted at the rear of the vehicle (1) A loading box 3 in which garbage is placed;

A collection box 4 mounted at the rear of the loading box 3 to be elevating and descending to collect garbage;

A hydraulic unit 6 for driving the collection box 4;

A first sensor 5 mounted on the loading box 3 to detect a signal;

A second sensor 7 mounted on the work clothes to sense a signal; And

It includes a control unit (C) that receives signals from the first and second sensors (5, 7) and stops the hydraulic unit (6) of the collection box (4) according to the position of the sensor.

As described above, in the garbage collection vehicle according to the present invention, when an operator approaches the garbage collection box during garbage collection operation, the control unit detects this and stops the operation of the hydraulic unit, thereby preventing the worker from being caught in the garbage collection box, thereby preventing safety accidents. There is an advantage to be able to.

In addition, the sensor of the present invention may include various sensors, and various sensors such as an RFID type sensor, a radio wave sensor, an ultrasonic sensor, and an infrared sensor may be applied.

In addition, there is an advantage in that the control unit doubles the first and second sensors and the pressure sensor of the staircase, thereby preventing the hydraulic tool from being stopped due to malfunction by signals of only the first and second sensors.

1 is a view showing a garbage collection vehicle equipped with a safety device according to an embodiment of the present invention.
2 is a view showing a second detection sensor provided in the garbage collection vehicle shown in FIG.
FIG. 3 is an enlarged view showing a first detection sensor worn by a worker shown in FIG. 1.

Hereinafter, with reference to the accompanying drawings, a garbage collection vehicle according to an embodiment of the present invention will be described in detail.

As shown in Figs. 1 to 3, the garbage collection vehicle 1 proposed by the present invention includes a loading box 3 installed at the rear of the vehicle 1 to store garbage; A collection box 4 mounted at the rear of the loading box 3 to be elevating and descending to collect garbage; A hydraulic unit 6 for driving the collection box 4; A first sensor 5 mounted on the loading box 3 to detect a signal; A second sensor 7 mounted on the work clothes to sense a signal; And it includes a control unit (C) for receiving signals from the first and second sensors (5, 7) and stopping the hydraulic unit (6) of the collection box (4) according to the position of the sensor.

In the garbage collection vehicle (1) having such a structure,

The collection box 4 is mounted to be elevating and descending at the rear of the garbage loading box 3, and a garbage input port is formed. Therefore, when external garbage is put into this garbage input port and the hydraulic part 6 is operated, the garbage collection box 4 rises to load the garbage in the garbage loading box 3.

At this time, there are various ways in which the garbage collection box 4 is mounted on the garbage storage box 3, for example, a pair of guide rails are arranged vertically at the rear of the garbage storage box 3, and the garbage collection box 4 is guided by this guide. It is a structure that is slidably mounted on the rail. In addition, it is a method of elevating and descending by connecting the hydraulic unit 6 to the garbage collection box 4 or connecting a chain.

Alternatively, a structure in which the garbage collection box 4 is connected to the garbage loading box 3 by a hinge is also possible. In this case, the hydraulic pressure pushes or pulls the lower part of the garbage collection box 4 to rotate the garbage collection box 4 to put the garbage into the garbage loading box 3.

In this way, the garbage collection box 4 is raised or lowered or rotated by the hydraulic unit 6, and the hydraulic unit 6 applied at this time refers to a hydraulic device having a conventional structure.

That is, the hydraulic unit 6 is composed of a cylinder, a piston, a hydraulic tank, a solenoid valve, and the like.

Therefore, the hydraulic part 6 is driven and the piston moves up and down by pushing or pulling the collection box 4.

In addition, the hydraulic unit 6 is adjusted by the control unit C to stop when necessary and prevent the collection box 4 from moving up and down, thereby preventing a safety accident.

That is, the control unit C turns on and off the solenoid valve of the hydraulic unit 6 according to an external signal, for example, signals from the first and second sensors 5, 7 (6) can be driven or stopped.

In more detail, by interlocking with the first and second sensors 5 and 7, the controller C transmits a signal to the hydraulic unit 6 to stop the operation when the positions of both sensors are close within a certain range.

At this time, the first and second sensors 5 and 7 can be operated by various types of sensors.

For example, the first sensor 5 is provided in the work clothes worn by the worker and is a transmitting unit that transmits radio waves, and the second sensor 7 is disposed in the collection box 4 and transmitted from the first sensor 5. It means a receiver that receives radio waves.

In addition, the second sensor 7 is connected to the control unit C, so that the control unit C measures the intensity of the received radio wave in real time.

Therefore, if the intensity of the radio wave is more than a certain value, the operator determines that it is close to the garbage collection box 4, and the control unit C transmits a signal to the hydraulic unit 6 to stop driving, and the garbage collection box 4 rises. Alternatively, stopping the descent can prevent the operator from getting caught in the gap.

The sensor may be a radio wave type sensor as well as other types of sensors.

For example, a radio frequency identification (RFID) type sensor is also applicable. Such an RFID sensor is composed of a tag embedded with a semiconductor chip and a reader that reads data stored in the tag contactlessly using a radio frequency.

Then, a reader is installed in a garbage collection box, and an RFID sensor is worn on the worker's work clothes.

Accordingly, when the worker approaches the garbage collection box, the reader detects the radio signal of the RFID sensor, and when the operator approaches the garbage collection box, the control unit stops driving the garbage collection box.

As another embodiment of the present invention, an ultrasonic sensor is also possible. That is, the ultrasonic sensor is composed of a transmitter and a receiver, and a piezoelectric element is applied. The piezoelectric element generates a voltage when a vibration wave such as pressure or ultrasonic waves is transmitted. Accordingly, when a voltage is applied to the transmitter, ultrasonic waves are generated, and the receiver detects ultrasonic waves that are reflected and returned by an object.

When applying such an ultrasonic sensor to the present invention, it is mounted on the garbage collection box (4). Therefore, when a worker approaches the garbage collection box 4, the ultrasonic sensor detects it and transmits a signal to the control unit C, and the control unit C stops driving the hydraulic unit 6.

As another embodiment of the present invention, an infrared type sensor is also possible. Such an infrared sensor is composed of an infrared generator and a Fresnel lens. Therefore, the infrared radiation irradiated from the infrared generator forms a detection zone within a certain range, and when an operator enters the detection zone, a change in electric signal is detected.

The control unit C detects such a change in the electric signal so that when the operator is close to the garbage collection box 4, it transmits a signal to the hydraulic unit 6 to stop the driving of the garbage collection box 4.

In this way, when an operator approaches the garbage collection box 4 during the garbage collection operation, the control unit C detects this and stops the operation of the hydraulic unit 6, thereby preventing the worker from being caught in the garbage collection box 4, thereby causing a safety accident. Can be prevented.

On the other hand, as another embodiment of the present invention, in addition to stopping the driving of the hydraulic unit 6 by signals from the first and second sensors 5 and 7, the operator is provided at a location adjacent to the garbage collection box 4 It is also possible to finally stop the driving of the hydraulic tool 6 only by stepping on the stairs.

That is, when the control unit C stops the hydraulic port 6 of the garbage collection box 4 by the first and second sensors 5 and 7, the operator approaches the garbage collection box 4 for normal work. In this case, it may interfere with normal operation by stopping due to an error in the signal.

Therefore, in order to prevent such malfunction, a pressure sensor (S) is additionally installed on the stairs 12 adjacent to the garbage collection box 4 of the vehicle and on which an operator can get on and off.

This pressure sensor (S) transmits a signal in connection with the control unit (C) by being pressed by the operator's weight when the worker climbs the stairs (12). At this time, the pressure sensor S includes various types of sensors, and may be, for example, a piezoelectric sensor.

Then, the control unit C can stop the raising and lowering of the garbage collection box 4 by double checking this signal and the signals of the first and second sensors 5 and 7. That is, after the signals of the first and second sensors 5 and 7 are received, the hydraulic pressure tool 6 is stopped only after the signal of the pressure sensor S is received.

Claims (5)

A loading box 3 mounted at the rear of the vehicle 1 to store garbage;
A collection box 4 mounted at the rear of the loading box 3 to be elevating and descending to collect garbage;
A hydraulic unit 6 for driving the collection box 4;
A first sensor 5 mounted on the loading box 3 to detect a signal;
A second sensor 7 mounted on the work clothes to sense a signal; And
Garbage collection vehicle (1) comprising a control unit (C) for receiving signals from the first and second sensors (5, 7) and stopping the hydraulic unit (6) of the collection box (4) according to the position of the sensor. A loading box 3 mounted at the rear of the vehicle 1 to store garbage;
A collection box 4 mounted at the rear of the loading box 3 to be elevating and descending to collect garbage;
A hydraulic unit 6 for driving the collection box 4;
A sensor 7 mounted on the loading box 3 to detect a signal; And
Garbage collection vehicle (1) comprising a control unit (C) for receiving a signal from the sensor (7) and stopping the hydraulic unit (6) of the collection box (4) according to the position of the sensor (7). The method of claim 1,
The first sensor 5 is provided in the work clothes worn by the worker and is a transmitting unit that transmits radio waves, and the second sensor 7 is disposed in the collection box 4 to receive radio waves transmitted from the first sensor 5. Garbage collection vehicle (1). The method according to claim 1 or 2,
The control unit C is a garbage collection vehicle 1 that stops the drive of the garbage collection box 4 by turning off the valve of the hydraulic unit 6. The method according to claim 1 or 2,
After receiving signals from the first and second sensors 5 and 7 by additionally arranging a pressure sensor S on the stairs 12 of the vehicle 1 and interlocking with the control unit C, the pressure sensor S The garbage collection vehicle (1) that stops the hydraulic port (6) only when the signal of the is received.

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