KR102504538B1 - Lower access control device for pump car - Google Patents

Abstract

Disclosed is a lower access control device for a pump car. The lower access control device for a pump car comprises a sign provided to prevent accidents within the working radius of a pump car including several articulated booms. The sign has two or more magnets installed in an upper portion thereof to be spaced apart from each other, has a warning phrase written in a lower portion thereof to prohibit access, and includes a guide portion having two or more gaps formed therein by being cut at regular intervals to pass wind. The lower access control device is installed so that when the boom is unfolded for work at a work site, the magnets of the sign are attached to one of the booms parallel to the ground, to provide danger information through signs, thereby preventing accidents that may occur for the pump car.

Description

Lower access control device for pump car {LOWER ACCESS CONTROL DEVICE FOR PUMP CAR}

The present invention relates to a hazard information control device, and more particularly, to prevent safety accidents by attaching a guide sign for controlling lower access to a boom that is folded in multiple stages on a lower carrier in a concrete pump car (CPC). It relates to a lower access control device for a pump car that can be used.

In general, concrete, which is used as the ground or support of a building by mixing gravel, sand, cement, and water in a certain ratio, is put into the construction site in an uncured state through a ready-mixed concrete vehicle. When the construction site is a basement wall or pillar of a building, concrete can be supplied from a ready-mixed concrete vehicle, but in the case of a wall or pillar of a high-rise building higher than the ready-mixed concrete vehicle, concrete is poured to the site using a pump car as shown in FIG. I'm trying to lay it out.

1 is a reference drawing for explaining the general structure of a conventional concrete pump car. As shown, the pump car 10 is connected to a hopper 11 receiving concrete from a ready-mixed concrete vehicle and the hopper 11 to transport concrete to the site. It includes a supply pipe 12 for pouring, and a boom 13 that supports the supply pipe 12 and is formed to be adjustable in height so that concrete can be poured through the supply pipe 12 even in a high place.

Since the concrete pump car has a different casting distance depending on the length of the extendable boom 13, a pump car suitable for the required distance is usually used.

A typical rotary type concrete pump car has a lower carrier 21, a swing frame 22 mounted rotatably by a driving means on the lower carrier 21, and one end on the swing frame 22 described above. The first boom unit 13-1, which is fixed and rotates within a predetermined stroke range by driving the hydraulic cylinder 23, the head of which is pivotally fixed to the swing frame 22 described above, and the first boom unit 13-1, which has one end, described above. 1) A second boom (13-2) folded with respect to the first boom (13-1) fixed to the other end and driven by a second hydraulic cylinder whose head is pivotally fixed to the first boom (13-1). ), and a third hydraulic cylinder drive in which one end is fixed to the other end of the above-mentioned second boom bar 13-2 and the head portion is pivotally fixed to the above-mentioned second boom bar 13-2. 2), a third boom bar 13-3 folded with respect to, one end fixed to the other end of the aforementioned third boom bar 13-3, and a fourth pivotally fixed head portion to the aforementioned third boom bar 13-3 It may be configured to include a fourth boom unit 13-4 that is folded with respect to the third boom unit 13-3 described above by hydraulic cylinder driving.

Boom stands are usually provided with 4 to 5 units.

Reference numeral 14 is an outrigger that extends during concrete pouring by deploying the above-mentioned boom to increase the ground contact force, and 12 is a delivery pipe that sends concrete from the hopper to a high-rise building.

Since the load is applied to the concrete pump car while moving a large structure called a boom, various kinds of safety accidents occur.

When constructing a high-rise building, since concrete is transported to a high place using a supply pipe of a concrete pump car, in the case of a high-rise building with a very high building height, the pressure of the supply pipe is very high.

That is, since the pump of the concrete pump car requires high pressure, the outrigger must be firmly fixed with a steel frame or concrete block.

In addition, an accident may occur in which the remicon vehicle and the pump car are getting stuck between the remicon vehicle and the pump car moving backwards, and the hose may fall out of the fixing hook while adjusting the boom of the pump car and the worker may be hit by the hose and fall.

In addition, death by colliding with the broken pump car boom, pump car piping shaking and striking a worker to death, accident due to malfunction due to inexperience in using pump car equipment, fracture accident due to poor connection of concrete hose and pipe connection, or concrete finisher rotating part Accidents in which the body comes into contact with

KR Registered Patent No. 10-1089917 (2011.11.29)

An object of the present invention to solve these problems is to provide a lower access control device for a pump car that can prevent safety accidents that may occur in a concrete pump car.

In addition, another object of the present invention is to provide a lower access control device for a pump car having a sign indicating danger on a boom pole parallel to the ground among several boom poles.

In addition, another object of the present invention is to provide a lower access control device for a pump car equipped with a speaker capable of detecting a worker entering within a working radius using a sensor and guiding danger.

In addition, another object of the present invention is to provide a lower access control device for a pump car equipped with a rope from which a sign attached to a boom can be easily removed.

Another object of the present invention is to provide a lower access control device for a pump car capable of guiding access control and generating a notification to a manager if it is not resolved after a certain period of time has elapsed.

In the present invention to solve this problem, in the lower access control device for a pump car equipped with a sign for preventing safety accidents within the working radius of a pump car composed of several sections of a boom, the sign is installed at the upper part and two or more magnets are spaced apart In the lower part, a warning message prohibiting entry is written, and a guide display unit is cut at regular intervals and formed with two or more air gaps,

When the boom is unfolded for work at the work site, it can be achieved by installing the magnet of the sign to be attached to any one of the booms parallel to the ground.

In the sign, the magnets are each fixed to the top of the guide display unit with a stitch, form a hollow passage with a stitch on the upper part of the magnet, insert a rope into the hollow passage, and attach the sign to the boom with a magnet If you want to remove it, hold the protruding part of the rope and apply an external force to separate the magnet of the sign bound to the boom, so that the sign is removed from the boom.

In addition, a speaker detachable to one side of the boom rod and a control device that is detachable to the other side of the boom rod and is connected to the speaker by wire or wirelessly when an object is detected through the sensor is configured to further include a control device that notifies the danger through the speaker When an object such as a person is detected in the danger zone, it can generate a danger to prevent an accident.

In addition, if a danger is notified through the speaker and an object is detected through the sensor even after a predetermined time has elapsed, the controller transmits an object detection signal to the manager's terminal through a communication interface so that the manager can remove the risk factor.

Therefore, according to the lower access control device for a pump car of the present invention, since danger information can be provided through a speaker and a sign, there is an effect of preventing safety accidents that may occur in the pump car in advance.

In addition, according to the lower access control device for a pump car of the present invention, by installing a sign indicating danger on a boom in a state parallel to the ground among several booms, workers working on the ground can easily find the sign and prevent danger in advance. It has the effect of making it possible.

In addition, according to the lower access control device for a pump car of the present invention, safety accidents can be prevented more effectively because a warning can be issued through a speaker when an object such as a worker or a work vehicle as well as a sign is detected.

In addition, according to the lower access control device for a pump car of the present invention, since the sign attached to the boom can be removed using a rope, the boom can be easily removed even if the boom is in a high place.

In addition, according to the lower access control device for a pump car of the present invention, if the risk factor is not resolved even if the access control is continuously guided, the manager can directly remove the risk factor, so there is an effect of preventing accidents in advance. .

1 is a reference diagram for explaining the general structure of a conventional concrete pump car;
2 is a detailed configuration diagram of a sign according to an embodiment of the present invention;
3 is a view showing an example in which the sign of the present invention is installed on a horizontal boom;
and
4 is a configuration diagram for generating a warning sound according to an embodiment of the present invention.

The terms or words used in this specification and claims are not limited to the usual or dictionary meanings, and the inventor can properly define the concept of the term in order to explain his or her invention in the best way. Based on this, it should be interpreted as a meaning and concept consistent with the technical spirit of the present invention.

Throughout the specification, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as “… unit”, “… unit”, “module”, and “device” described in the specification mean a unit that processes at least one function or operation, which is implemented as a combination of hardware and/or software. It can be.

Throughout the specification, the term "and/or" should be understood to include all possible combinations from one or more related items. For example, the meaning of “a first item, a second item and/or a third item” may be presented from two or more of the first, second or third item as well as the first, second or third item. A combination of all possible items.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

2 is a detailed configuration diagram of a sign according to an embodiment of the present invention. As shown, the sign according to one embodiment of the present invention guides danger to a boom rod generally parallel to the ground among pump cars composed of several boom rods. It is used to prevent safety accidents occurring in the concrete pump car by attaching a sign with a guide display unit.

In general, since a load is applied while moving a large structure called a boom in a concrete pump car, various kinds of safety accidents occur.

In particular, when constructing a high-rise building, since the concrete is transported to a high place using the supply pipe of the concrete pump car, in the case of a high-rise building with a very high building height, the pressure of the supply pipe is very high, so the outrigger is made of steel It must be firmly fixed with a frame or concrete block, but if not, the ground under the outrigger will collapse and you may die from being hit by a pump car while falling.

In addition, while adjusting the boom of the pump car, the hose falls off the fixing hook and falls, and the worker at work may get hit by the hose and fall. Accidents caused by malfunctions due to improper operation of the pump car or equipment usage due to inexperience, fracture accidents due to poor connection of concrete hoses and pipes, or accidents in which the body comes into contact with the rotating part of the concrete finisher.

As described above, the present invention, in order to prevent such a safety accident, attaches a sign notifying the danger to one of the booms that are approximately horizontal to the ground, that is, parallel to the ground, so that the worker can see the danger One purpose is to control access to the lower part by notifying the

To this end, the sign 100 has two or more magnets 121 spaced apart and installed at the top, a warning phrase 124 prohibiting entry at the bottom, and two gaps 123 cut at regular intervals to allow air to pass through. Consists of an over-formed guide display unit 120.

Such a sign 100 is configured to be attached to a boom rod parallel to the ground using a magnet 121 of the sign when the boom rod 13 is unfolded for work at a work site.

In addition, since it is common for a boom stand to consist of 5 to 6 sections, considering the length of one boom stand and the size of the warning message, it is recommended to configure a sign with a width (x4) of 5 to 6 m and a length (x3) of 1 to 2 m. desirable.

Of course, in this case, the case where the warning text is written horizontally is an example.

In addition, it goes without saying that these warning phrases can be written in English or other languages as needed.

In the drawing, the warning phrase is marked as "no entry to fall hazard", which is a guide to prohibit entry to the lower part of the boom.

Referring to FIG. 2, the sign is composed of a rectangle, but is not limited thereto, and can be configured in a polygonal shape that can optimally show the effect of the guide sign in consideration of the situation at the construction site.

In the guide display unit 120, two or more magnets 121 are installed so as to be spaced apart at the top, and a guide 124 for prohibiting entry is described at the bottom, and two or more gaps 123 are cut at regular intervals and allow air to pass through. make up to form

The magnet 121 is composed of a circular magnet, and the periphery of the magnet is sewn 122 so that the magnet is fixed, and the distance (x1) between the magnets 121 is composed of 50 cm.

Therefore, when the length of the guide display unit 120 is long, magnets are installed at intervals of 50 cm, fixed by stitching, and configured to be attached to the boom made of metal by the magnetic force of the magnet.

If the distance between magnets (x1) is less than 50 cm, it is difficult to remove them from the boom because they are too tightly coupled. It is preferable to

More preferably, the individual magnets are firstly stitched and at the same time, the upper and lower surfaces of the first stitching are subjected to secondary stitching again so that all magnets are included, so that the magnet face is hardened by the stitching.

In addition, the guide display unit 120 is composed of cloth and stitched, and at the same time, the oral phrase 124 that guides the danger is displayed in red, and the guide display unit is a gap portion so that the guide display unit does not easily fall from the boom bar due to wind or external shock (123) is provided with two or more.

The gap part 123 cuts the guide display part vertically so that the guide display part is not affected by the wind, and allows the wind to pass through the cut gap.

These gaps 123 are installed at regular intervals, but the interval (x3) is preferably configured to be around 20 cm.

In the case of a configuration of more than 20 cm, strong resistance occurs when strong wind blows, and the possibility of the sign being separated from the boom cannot be ruled out. lose

In other words, the magnets are installed at intervals of 50 cm and each is fixed with stitching, and the horizontal length is shorter than the length of the boom, but within 5 to 6 m, and the guide display is written in red letters on a yellow background. will protest

The sign 100 is installed so that the magnet 121 of the sign is attached to the boom 13 parallel to the ground when the boom 13 is unfolded for work at a work site.

Figure 3 is a view showing an example of installing the sign of the present invention on a horizontal boom, as shown, the pump car is supported by an outrigger near the site while deploying the boom for concrete pouring work to supply the supply pipe 12 to a high-rise building It operates to transmit through.

In this case, since the boom parallel to the ground is the No. 3 boom (13-3), the sign 100 of the present invention is attached to the No. 3 boom so that workers can always check the warning text on the sign to prevent safety accidents. There is.

Preferably, in order to allow workers to recognize the warning phrase, it is preferable to install a boom bar at an angle of less than 70 ° with the ground.

This is because when the angle between the boom and the ground becomes more than 70 °, the guide display unit flows down, making it impossible to identify.

In addition, the present invention uses a rope for easy removal because the sign is attached to the boom of a considerable height.

Specifically, a hollow passage is formed by sewing to accommodate the rope at the top of the magnet sewn into the guide display unit 120, a rope is inserted in the hollow passage, and an external force is applied using the inserted rope to pull the magnet It falls off the boom and eventually causes the sign to disengage from the boom.

Referring to FIG. 2, a hollow passage 131 is formed with a backstitch 122 on the top of the magnet 121 fixed to the top of the guide display unit 120 with a backstitch, and then a rope is attached to the hollow passage 131. (130) is inserted.

The rope 130 to be inserted can be used as a handle by configuring a protrusion longer than the length of the passage 131, and it is preferable to use a rope made of PP material.

Also, the handle can be formed on either or both sides.

In other words, if you want to remove the sign attached to the boom with a magnet, grab the protrusion of the rope and apply an external force to pull it to separate the magnets of the sign attached to the boom one by one and remove the sign from the boom.

That is, the rope is used for removing the sign.

In addition, the present invention may check the warning phrase through the sign above the head, but if an object such as a human body is present within the danger radius through a sensing unit such as a sensor, it may be detected and alerted by generating a warning sound through a speaker. .

Figure 4 is a configuration diagram for generating a warning sound according to an embodiment of the present invention, as shown, the present invention is a speaker 300 detachable with a magnet to one side of the boom in order to generate a warning sound to an object detected within a working radius It is detachable to the other side of the boom and is connected to the speaker 300 by wire or wirelessly and may include a control device 200 that notifies the danger through the speaker when an object is detected through the sensing unit.

The speaker 300 may be connected to the control device 200 by wire or wireless, and when connected wirelessly, it may be performed using Wi-Fi or short-range wireless communication.

To this end, the control device 200 configures a communication interface 230 wirelessly connected to the speaker 300 and a detection unit 240 that detects an object such as a human body within a working radius, that is, a dangerous area, and the detection unit 240 ), when an object is found, the control unit 210 may make an announcement to get out of the area as soon as possible because it has entered the danger radius through a wire or communication interface 230.

The communication interface 230 can perform Internet communication through a short-distance communication module and a network, and can support short-distance communication when operated as a short-distance communication module. Such a short-range communication module may support wireless communication between the speaker 300 and a network through wireless area networks. The local area wireless communication network may be a local area wireless personal area network (Wireless Personal Area Networks).

The sensing unit 240 is an object detection sensor and includes an infrared sensor, an ultrasonic sensor, a laser sensor, and the like. Infrared sensors are most commonly used because they are inexpensive and easy to implement, but they can only be detected when an object is in motion, and ultrasonic sensors can be detected even when there is no motion, but have low accuracy and many errors.

These detection sensors are capable of detecting objects within a certain short distance, but are not detected when they are out of the detection range, so they can be used by fixing them with magnets to an appropriate boom bar in consideration of the working radius of the pump car.

In addition, the control device 200 notifies a warning sound through the speaker 300 when an object is detected through the detector 240, and then detects a corresponding object through the detector 240 even after a predetermined time has elapsed through the communication interface An object detection signal may be transmitted to the manager's terminal 400 through 230 so that the manager visits the site and removes the risk factor.

In addition, the control unit 210 stores event details including the detected time and detection details when an object is detected through the detector 240, and when the manager's terminal 400 approaches, the terminal is detected through short-range wireless communication. When the event history is transmitted to 400, the terminal 400 can display the corresponding event history, determine the cause of risk factors that have occurred so far, and fundamentally remove the risk factors.

To this end, the terminal 400 stores applications related to the present invention, and when event details are received from the control device 200, the application is automatically activated to display the received event details.

As described above, according to the lower access control device for a pump car of the present invention, safety accidents that may occur in a pump car can be prevented in advance because danger information can be provided through a speaker and a sign.

Although the present invention has been described in detail with respect to the specific embodiments described above, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical idea of the present invention, and it is natural that these changes and modifications fall within the scope of the appended claims.

10: pump car 11: hopper
12: supply pipe 13: boom stand
100: signs
120: guide display unit 121: circular magnet
122: backstitch 123: gap
124: warning phrase 130: rope
131: passage 200: control device
210: control unit 230: communication interface
240: sensing unit 300: speaker
400: terminal

Claims (5)

In the lower access control device for a pump car equipped with a sign to prevent safety accidents within the working radius of a pump car composed of a multi-section boom,
said sign
Two or more magnets are spaced apart from each other on the upper part, and a warning message prohibiting entry is written on the lower part, and two or more air gaps are formed by being cut at regular intervals.
including,
When the boom is unfolded for work at the work site, the magnet of the sign is installed to be attached to one of the booms parallel to the ground,
A speaker attached to and detached from one side of the boom stand; And
A control device that is detachably attached to the other side of the boom and is connected to the speaker by wire or wirelessly and notifies the danger through the speaker when an object is detected through the sensor;
A lower access control device for a pump car further comprising a.
The method of claim 1,
said sign
The magnets are each fixed to the top of the guide display unit with a stitch, form a hollow passage with a stitch on the upper part of the magnet, and then insert a rope into the hollow passage,
If you want to remove the sign attached to the boom with a magnet, hold the protrusion of the rope and apply an external force to separate the magnet of the sign bound to the boom to remove the sign from the boom.
The method of claim 2,
The magnets are installed at intervals of 50 cm and fixed with stitching, and the horizontal length is formed shorter than the length of the boom bar, but is configured within 5 to 6 m, and a warning message is written in red letters on a yellow background in the guide display unit, and the gap is spaced at 20 cm intervals A lower access control device for a pump car, characterized in that formed.
delete The method of claim 1,
The control device
When the danger is notified through the speaker, if an object is detected through the detection unit even after a predetermined time has elapsed, an object detection signal is transmitted to the manager's terminal through the communication interface so that the manager removes the risk element.

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