KR20240014435A - Apparatus for notifying worker drop - Google Patents

Abstract

A fall notification device is disclosed that can quickly and efficiently notify the outside world when a worker is in a dangerous situation due to a fall due to a slip, etc. The fall notification device includes a housing consisting of a main body and a cover coupled to the main body; A circuit board installed inside the cover and equipped with a switch that selectively controls the output of the warning generator; a fixing member fixed to one end of the main body in the longitudinal direction and protruding out of the main body; and a movable member that is movably installed on the main body, one end of which is bent upward to form a support portion, and the other end of which protrudes out of the main body, and the support portion is installed to overlap the fixing member to allow movement of the movable member. It comes into contact with the fixing member.

Description

Fall notification device{Apparatus for notifying worker drop}

The present invention relates to a fall notification device, and in particular, to a fall notification device that can quickly and efficiently notify the outside world when a worker falls due to a slip, etc. and is in a dangerous situation.

In general, the construction, shipbuilding, and plant industries often perform work at elevated positions due to the nature of the industry.

When working at heights, for the safety of workers, a stand is placed in the work area and a safety rope is installed on the stand. Workers wear a harness-type safety belt and then connect the safety belt and safety rope using a connector.

As is well known, a carabiner and a hook are installed at each end of the connector, the carabiner is connected to the safety belt, and the hook is connected to the safety rope. In addition, when a worker falls, a shock absorber (shock absorber) is provided to absorb the shock applied to the rope of the connector.

However, even if such safety equipment is applied, there is always a possibility that a worker may fall while working, so it is necessary to quickly rescue workers in the event of a safety accident.

When safety equipment is applied, if a worker falls, the worker is suspended in the air by the connector connecting the safety belt and the safety rope worn by the worker, so people around him/her need to quickly recognize this and provide a quick rescue.

For this purpose, looking at Domestic Patent No. 10-1526950, a rope, a coupling part connected to one end of the rope and coupled to a human body belt mounted around the worker's body, and a hook connected to the other end of the rope are used. A safety belt having a connecting body and a control device, wherein the connecting body is provided with a load detection sensor that detects that a load exceeding an allowable range is applied to the connecting body, and the control device detects the detection from the load detection sensor. A seat belt comprising a receiving unit that receives a signal, a control unit that detects the status of the worker or the seat belt from the detection signal, and a notification unit that performs a notification operation according to control by the control unit according to the situation. It has been disclosed.

However, according to the above patent, the structure of the device is complicated and the manufacturing cost is high because it uses a sensor and includes a control unit that processes the detection signal from the sensor, so it is not widely used.

Additionally, if the sensor does not accurately detect changes in load or transmit detection signals accurately, the reliability of recognition of a worker's fall is reduced.

Therefore, the purpose of the present invention is to provide a fall notification device that can quickly recognize a worker's fall.

Another object of the present invention is to provide a fall notification device that improves the reliability of a worker's fall recognition.

Another object of the present invention is to provide a fall notification device that has a simple structure and relatively low manufacturing cost because it can recognize a fall by mechanical operation.

The above purpose is to provide a device that is interposed between the safety belt worn by the worker and the safety rope installed in the facility to notify the worker of a fall, comprising: a housing consisting of a main body and a cover coupled to the main body; A circuit board installed inside the cover and equipped with a switch that selectively controls the output of the warning generator; a fixing member fixed to one end of the main body in the longitudinal direction and protruding out of the main body; and a movable member that is movably installed on the main body, one end of which is bent upward to form a support portion, and the other end of which protrudes out of the main body, and the support portion is installed to overlap the fixing member to allow movement of the movable member. This is achieved by a fall notification device that contacts the fixing member, and the switch is turned on by movement of the movable member, and the warning generator outputs a warning.

Preferably, a receiving hole or receiving groove is formed in the movable member, and the switch is a snap switch provided with a lever or an actuator, and the lever or actuator is accommodated in the receiving hole or the receiving groove by movement of the movable member. It can be changed to the ON state, or it can be changed to the ON state by moving out of the receiving hole or the receiving groove.

Preferably, a slot is formed in the movable member in the longitudinal direction, and a spring is inserted into the slot to fix both ends.

The above purpose is to provide a device that is interposed between the safety belt worn by the worker and the safety rope installed in the facility to notify the worker of a fall, and includes a housing containing a circuit board on which a switch for selectively controlling the output of a warning generator is mounted; and a support member that is slidably stored inside the housing facing the circuit board and has rings at both ends protruding outwards, wherein both ends of the support member are connected to the safety belt and the safety rope, respectively, to prevent the person from falling. This is achieved by a fall notification device, which withstands the impact caused by and the switch is turned on by movement of the support member, and the warning generator outputs a warning.

Preferably, a stopper may be integrally formed at one end of the housing in the longitudinal direction to accommodate the ring of one end of the support member and prevent the support member from moving during normal times.

Preferably, the stopper is integrally formed by extending the bottom of the housing, an edge of the stopper has an arc shape corresponding to the ring of the support member, and a rib protrudes along the edge to partially form the ring of the support member. may come into contact with the edge of

Preferably, an insertion hole or groove may be formed near one end of the support member at a position corresponding to the switch, and a storage hole into which a spring is inserted may be formed near the other end.

According to the present invention, there is an advantage that a quick rescue or response is possible by quickly recognizing a worker's fall by surrounding people.

In addition, the reliability is high because the fall is detected not by electronic components such as sensors, but by mechanical movement caused by the impact of the fall.

In addition, because a fall can be recognized through mechanical movement, the structure is simple and the manufacturing cost is relatively low.

Figure 1 shows a fall notification device according to an embodiment of the present invention.
Figure 2 shows an exploded view of a fall notification device according to an embodiment.
Figures 3(a) and 3(b) show the operation of the fall notification device in one embodiment.
Figure 4 shows a fall notification device according to another embodiment of the present invention.
Figure 5 shows an exploded view of a fall notification device according to another embodiment.
Figure 6 shows the entire fall notification device mounted on the lanyard.
Figures 7(a) and 7(b) show the operation of a fall notification device in different embodiments, respectively.

It should be noted that the technical terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention, unless specifically defined in a different sense in the present invention, should be interpreted as meanings generally understood by those skilled in the art in the technical field to which the present invention pertains, and are not overly comprehensive. It should not be construed in a literal or excessively reduced sense. Additionally, if the technical term used in the present invention is an incorrect technical term that does not accurately express the idea of the present invention, it should be replaced with a technical term that can be correctly understood by a person skilled in the art. In addition, general terms used in the present invention should be interpreted according to the definition in the dictionary or according to the context, and should not be interpreted in an excessively reduced sense.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

Figure 1 shows a fall notification device according to an embodiment of the present invention, and Figure 2 shows an exploded fall notification device according to an embodiment.

The fall notification device 100 includes a housing consisting of a main body 110 and a cover 120 coupled to the main body 110.

Although not shown, a hook is connected to one end of the lanyard, one end of the fall notification device 100 is connected to the other end, and a carabiner is connected to the other end of the fall notification device 100. The carabiner is connected to the safety belt worn by the worker. It is connected to and the hook is connected to the safety rope.

A mechanical drive unit as shown in FIG. 2 is mounted on the main body 110, and an electrical unit including a circuit board (not shown) is mounted on the cover 120.

A speaker 102 for outputting a warning sound and a function button 104 for checking warning sound output or charging are installed on the upper surface of the cover 120, and a USB port 160 for charging is installed at the end.

A control controller, a battery for power supply, a sound generator that generates a warning sound, and a switch that controls the output of the sound generator are mounted on the circuit board.

Along with the sound generator, light generators such as strobes can be applied, and hereinafter they are collectively referred to as warning generators.

Referring to Figure 2, a movable member 130 and a fixed member 140 are installed in the main body 110, and are installed to partially overlap each other.

A stopper 111 is formed to protrude from the bottom of the main body 110, an opening 112 is formed at one end, and a fixing channel 114 is formed at the other end.

The movable member 130 is installed along the longitudinal direction at the bottom of the main body 110. One end protrudes from the main body 110 through an opening 112, and a through hole 132 is formed in the protruding portion.

For example, a carabiner connected to a safety belt worn by a worker may be coupled to the through hole 132 of the movable member 130.

A receiving hole 134 is formed in approximately the middle of the movable member 130. As will be described later, the lever end of the switch mounted on the circuit board enters the receiving hole 134 by sliding the movable member 130. The switch is in the ON state.

In addition, a slot 135 is formed in the longitudinal direction of the movable member 130, so that the stopper 111 formed at the bottom of the main body 110 is inserted into the slot 135, and a compression spring 180 is installed in the slot 135. It is inserted.

One end of the compression spring 180 is fixed by the protrusion 136 protruding into the slot 135, and the other end is fixed by the stopper 111 and maintained inside the slot 135.

The compression spring 180 of this embodiment can be replaced with a tension spring, and the range of compression or tension that can cause a warning can be appropriately set by movement of the movable member 130.

In other words, the compressive force or tensile force should not be so small that the movable member 130 cannot move during normal activities, and the compressive force or tensile force should not be so large that the movable member 130 cannot move in an emergency and the warning sound cannot be generated. It is recommended to apply a spring with an appropriate range of compression or tension force.

Additionally, the other end of the movable member 130 is bent upward to form the support portion 131.

The fixing member 140 is formed in a U-shape and is inserted into the fixing channel 114 of the main body 110. As described above, the support portion 131 of the movable member 130 is installed to overlap the fixing member 140.

A through hole 142 is formed in the fixing member 140 so that the coupling rod 152 is inserted, and a snap ring 154 is inserted into the end of the coupling rod 152 to prevent separation.

A safety rope connected to a facility may be coupled to the fixing member 140. As a result, the movable member 130 protruding from one end of the fall notification device 100 may be equipped with a safety ring connected to a safety belt worn by the worker, such as a carabiner. is coupled, and a safety rope is coupled to the fixing member 140 protruding at the other end.

Hereinafter, the operation of a fall notification device according to an embodiment will be described.

Figures 3(a) and 3(b) show the operation of the fall notification device in one embodiment.

Figure 3(a) shows a state in which the fall notification device 100 is not operating, for example, when the worker first connects the fall notification device 100 to the safety belt and safety rope worn by the worker. Shows the status.

A switch mounted on the circuit board 10, for example, a limit switch 20, is provided with a switching lever 22.

As is well known, the limit switch 20 is maintained in the off state when the lever 22 is normally opened, but as in this embodiment, the circuit can be designed so that it is opened to be in the on state and pressed to remain in the off state.

In this embodiment, the end of the lever 22 of the limit switch 20 is normally pressed on the movable member 130 and maintained in the off state, as shown in FIG. 3(a).

Of course, a commonly known snap switch such as a micro switch equipped with an actuator can be applied instead of the limit switch 20 equipped with the lever 22.

When a worker slips and falls, the impact of the fall due to the worker's weight is transmitted to the movable member 130 through a safety ring connected to the safety belt, and the movable member 130 overcomes the compression force of the compression spring 180, as shown in Figure 3 (b). ) Move in the direction indicated by the arrow.

As a result, the receiving hole 134 formed in the movable member 130 is also moved, and the end of the lever 22 of the limit switch 20 that was pressed enters the receiving hole 134, and thus the lever 22 is indicated by a dotted arrow. It changes to the ON state by rotating as shown.

At the same time, the support portion 131 of the movable member 130 is caught by the fixing member 140 and the impact of the fall is transmitted to the safety rope through the fixing member 140 and distributed.

As the limit switch 20 is turned on, power is applied to the warning generator on the circuit board, a warning sound is output at a preset size through the speaker 102, and a flashing light is output through the strobe.

Therefore, people in a place adjacent to the location where the worker fell can hear the warning sound and quickly identify the location, perform a quick rescue operation, and report it to the relevant authorities.

In addition, at night, the location of a fallen worker can be determined more quickly and accurately by visually recognizing the flashing light through the strobe.

Unlike the above embodiment, the position of the receiving hole 134 of the movable member 130 is adjusted so that the end of the lever 22 of the limit switch 20 enters the receiving hole 134 and remains off, and the movable member 130 is maintained in the off state. It is also possible that (130) moves so that the end of the lever (22) of the limit switch (20) comes out of the receiving hole (134) and is pressed on the movable member (130).

Additionally, a receiving groove may be formed in place of the receiving hole 134, and a rectangular hole or groove may be formed corresponding to the shape of the lever 22.

Figure 4 shows a fall notification device according to another embodiment of the present invention, Figure 5 shows the fall notification device of another embodiment disassembled, Figure 6 shows the entire fall notification device mounted on a lanyard, Figures 7(a) and 7(b) show the operation of a fall notification device in different embodiments, respectively.

In the following description, a detailed description will be given focusing on components that are different from the above-described embodiment.

The fall notification device 200 includes a housing 210 and a movable member 230 that is stored in the housing 210 and extends in the longitudinal direction.

The housing 210 consists of a main body 211 and a cover 212 coupled to the main body 211. The main body 211 and the cover 212 are detachably coupled or bonded so as not to be separated by adhesive or welding. It can be manufactured for single-use use.

A driving unit as shown in FIG. 6 is mounted on the main body 211, and an electric unit including a circuit board 10 is mounted inside the cover 212.

A speaker 202 for outputting a warning sound, a function button 204 for checking the warning sound output or charging, and a high-brightness LED 206 are installed on the upper surface of the cover 212, and one end surface of the cover 211. A USB port for charging can be installed.

A control controller, a battery for power supply, a sound generator that generates a warning sound, and a switch that controls the output of the sound generator are mounted on the circuit board 10.

Along with the sound generator, light generators such as strobes can be applied, and hereinafter they are collectively referred to as warning generators.

Walls 211a and 211b are formed on both sides of the main body 211, and a channel 215 is formed on the floor between them so that the support member 230 is inserted into contact with the floor.

At one end of the longitudinal direction of the main body 211, a stopper 213 is integrally formed to accommodate the ring 231 of one end of the support member 230 and prevent the support member 230 from moving during normal times.

The stopper 213 is integrally formed by extending the bottom of the channel 215 of the main body 211, and has an edge having an arc shape corresponding to the ring 231 of the support member 230 and a rib 214 along the edge. may protrude and partially contact the edge of the ring 231 of the support member 230.

In addition, a through hole 214a is formed in the middle part of the stopper 213 so that the ring 231 and the carabiner 33 connected to the worker's safety belt can be connected.

A semicircular groove 216 is formed near the other end at the bottom of the channel 215 of the main body 211 to receive a portion of the compression spring 280, as will be described later.

The support member 230 is manufactured integrally in a strip shape to secure a certain thickness and have sufficient tensile strength. For example, it may be made of a thickness and material capable of having a tensile strength of about 2.4 tons.

The support member 230 consists of a single body 231 and rings 232 and 233 integrally formed at both ends of the body 231.

An insertion hole or groove 238 is formed near one end of the support member 230 at a position corresponding to the lever 24 of the limit switch 20 mounted on the circuit board 10, and a compression spring 280 is formed near the other end. ) is formed into which a storage hole 236 is inserted, and a protrusion 235 supporting the compression spring 280 is formed on one side of the storage hole 236.

When the compression spring 280 is inserted into the storage hole 236 and the support member 230 is inserted into the bottom of the channel 215 of the main body 211, the lower part of the spring 280 is received in the semicircular groove 216, and the upper part protrudes, and the movement of the compression spring 280 is regulated by the semicircular groove 216.

6, a hook 31 is connected to one end of the lanyard 30, a carabiner 32 is connected to the other end, and a carabiner 32 is connected to one end of the fall notification device 200 and provides a fall notification. Another carabiner 33 is connected to the other end of the device 200. The carabiner 33 is connected to the safety belt worn by the worker, and the hook 31 is connected to the safety rope.

Therefore, when a worker falls, the support member 230 of the fall notification device 200 supports the amount of impact caused by the worker's fall and simultaneously slides a predetermined distance to operate the switching element, thereby outputting a warning sound and a flashing light to the outside. do.

Hereinafter, the operation of a fall notification device according to an embodiment will be described.

Figure 7(a) shows a state in which the fall notification device 200 is not operating. As shown in the enlarged circle, the switch mounted on the circuit board 10, such as the limit switch 20, is pressed and turned off. It may be provided with a switching lever 24 that has a structure that pops out and turns on when released.

Accordingly, the lever 24 of the limit switch 20 is normally pressed on the support member 230 and maintained in the off state, as shown in FIG. 7(a).

Of course, instead of the limit switch 20 with the lever 24, a commonly known snap switch such as a micro switch with an actuator can be applied.

When a worker slips and falls, the impact of the fall due to the worker's weight is transmitted to the support member 230 through a safety ring connected to the safety belt, and the moving member 130 overcomes the compressive force of the compression spring 280, as shown in Figure 7 (b). ) Move in the direction indicated by the arrow.

As a result, the insertion hole 238 formed in the support member 130 is also moved, and the lever 24 of the limit switch 20 that was pressed enters the insertion hole 238, causing the lever 24 to protrude, and as a result, the limit switch 20 The switch 20 is in the on state.

As the limit switch 20 is turned on, power is applied to the warning generator on the circuit board 10, a warning sound is output at a preset size through the speaker 202, and the high-brightness LED 206 blinks to indicate the location of the fallen worker. Allows you to quickly and accurately identify.

Therefore, people in a place adjacent to the location where the worker fell can hear the warning sound and quickly identify the location through the high-intensity flashing light, perform quick rescue work, and report it to the relevant authorities.

Although the above description focuses on embodiments of the present invention, various changes and modifications can be made at the level of those skilled in the art. These changes and modifications can be said to belong to the present invention as long as they do not depart from the scope of the present invention. The scope of rights of the present invention should be determined by the claims stated below.

100, 200: Fall notification device
110, 211: main body
120, 212: Cover
102, 202: Speaker
104, 204: Function button
130: Movable member
140, 230: Support member
213: stopper
231: body
232, 233: Ring

Claims (8)

It is a device that is inserted between the safety belt worn by the worker and the safety rope installed in the facility to notify the worker of a fall.
A housing consisting of a main body and a cover coupled to the main body;
A circuit board installed inside the cover and equipped with a switch that selectively controls the output of the warning generator;
a fixing member fixed to one end of the main body in the longitudinal direction and protruding out of the main body; and
A movable member is movably installed on the main body, one end of which is bent upward to form a support portion, and the other end of which protrudes out of the main body,
The support part is installed to overlap the fixing member and contacts the fixing member by movement of the movable member,
A fall notification device, wherein the switch is turned on by movement of the movable member and the warning generator outputs a warning. In claim 1,
A receiving hole or receiving groove is formed in the movable member,
The switch is a snap switch provided with a lever or an actuator. A fall notification device characterized in that the lever or the actuator is accommodated in the receiving hole or the receiving groove and changed to the ON state by movement of the movable member. . In claim 1,
A receiving hole or receiving groove is formed in the movable member,
The switch is a snap switch provided with a lever or an actuator, and the lever or the actuator moves out of the receiving hole or the receiving groove and is changed to an ON state by moving the movable member. A fall notification device. In claim 2 or 3,
A fall notification device, wherein a slot is formed in the movable member in the longitudinal direction, and a spring is inserted into the slot to fix both ends. It is a device that is inserted between the safety belt worn by the worker and the safety rope installed in the facility to notify the worker of a fall.
A housing containing a circuit board mounted with a switch that selectively controls the output of the warning generator; and
A support member is slidably stored inside the housing facing the circuit board and has rings at both ends protruding outward,
The support member is connected at both ends to the safety belt and the safety rope to withstand the impact of the fall,
A fall notification device, wherein the switch is turned on by movement of the support member and the warning generator outputs a warning. In claim 5,
A fall notification device, characterized in that a stopper is integrally formed at one end of the housing in the longitudinal direction to receive a ring of one end of the support member and prevent the support member from moving during normal times. In claim 6,
The stopper is integrally formed by extending the bottom of the housing,
A fall notification device, characterized in that the edge of the stopper has an arc shape corresponding to the ring of the support member, and a rib protrudes along the edge and partially contacts the edge of the ring of the support member. In claim 1,
A fall notification device, characterized in that an insertion hole or groove is formed near one end of the support member at a position corresponding to the switch, and a storage hole into which a spring is inserted is formed near the other end.

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