KR102531239B1 - Container locking device - Google Patents

Abstract

The present invention relates to a container binding device that enables a smooth locking or unlocking operation during loading or unloading of containers to eliminate driver's inconvenience, improve work efficiency, and secure reliability, wherein at least four are connected to the upper frame of a trailer. Locking assemblies arranged in two rows along the longitudinal direction to be fastened or unfastened to the binding sphere of the container; a drive assembly connected to the locking assembly so as to be interlocked and driving the locking assembly to engage or disengage; And a lock holding assembly provided between the locking assembly and the drive assembly to maintain the locked state of the locking assembly; as a technical point to include.

Description

Container locking device {Container locking device}

The present invention relates to a container locking device, and more particularly, to a container locking device that enables a smooth locking or unlocking operation during loading or unloading of containers to eliminate driver's inconvenience, improve work efficiency, and secure reliability. it's about

In general, a container is a type of transport container and is a container of a certain standard capable of transporting a large amount of cargo made for land transport or shipment transport, and refers to a loading box for safely and conveniently transporting cargo. It is also a standardized container for bulk cargo.

These containers are transported by being mounted on a container vehicle on land, and a large amount of containers are transported by using a large container ship for loading containers on the sea.

A vehicle called a trailer is used as a transportation means for transporting containers by land, and this trailer is generally organized and guided by a tractor without a driving power unit or control unit.

A trailer is designed to be suitable for the size of a container so as to be able to mount a standardized container, and is also designed in consideration of the weight of a state in which cargo is loaded in the container. A trailer designed in this way is equipped with one or two containers. In order to prevent the container from being separated from the trailer and to prevent flow during sudden braking, curved roads, slopes, and other unexpected situations that occur during transportation, the trailer A locking device for fixing the container is installed on top of the.

1a and 1b are cross-sectional views showing states before and after the operation of a manual locking device according to the prior art.

As shown in FIGS. 1A and 1B, a manual locking device according to the prior art locks or unlocks multiple locations of an upper frame 1 provided in a trailer by rotating and lifting a lever 3. When the driver operates the lever 3 of the locker 2 in a state in which the locker 2 is provided and the container 4 is loaded at a predetermined position of the upper frame 1, the top of the locker 2 The head part 2' provided in the container is inserted into and fastened to the binding hole 5 formed on the bottom surface of the container.

That is, the manual locking device performs a function of promoting stability during transportation by integrally binding the trailer and the container loaded therein.

However, it is common for most drivers to drive without locking operation because it is cumbersome to operate the locking device while the container is loaded. If the container is operated without the trailer, it may cause a major accident such as the container being separated from the trailer or falling.

In order to solve the above problem, an automatic locking device such as Korean Utility Model Registration No. 20-0186762 has been proposed.

Figures 2a and 2b are cross-sectional views showing the state before and after the operation of the automatic locking device according to the prior art.

As shown in FIGS. 2A and 2B, the automatic locking device according to the prior art is installed inside the tubular housing 10 mounted on the upper frame of the trailer, and the elasticity of the elastic spring 22 and the outside An actuator 20 having a hollow part 21 protruding upward by the load of the actuator 20, and a head part 31 installed coaxially in the hollow part 21 of the actuator 20 and inserted into the container. A locker 30 having a locking jaw 32 that is coupled to and interlocked during the immersion operation of the operating tool 20, and a tubular groove inside the locker 30 by a predetermined depth from the bottom to the top. (40) is formed in the double-tubular groove 40 and has a slit groove 41 having a curved surface that induces rotation within a certain range when the locker 30 is lowered, and the inside of the tubular groove 40 is elastic. A support shaft 50 fixed to the cover 11 coupled to the bottom surface of the housing 10 so as to slide freely via a spring 52, and a slit groove 41 formed on the outer periphery of the upper end of the support shaft 50 It includes a pin 51 that displaces the direction of the locker 30 that is lifted along the slit groove 41 with the point inserted in the fixed axis.

That is, the automatic locking device can automatically lock and unlock the container by its own weight in the process of loading or unloading the container, thereby transporting the heavy container in a safe locked state, as well as operating the locker to avoid any inconvenience caused by

On the other hand, according to the specifications of the trailer, 4 to 12 locking devices are installed on the upper frame at regular intervals, and in the case of a trailer with 6 or more locking devices installed, the locking device used for fixing depends on the size of the loaded container. It will be different.

However, in the case of the prior art, since the user has to manually operate a plurality of locking devices in order to lock and unlock them, the work time is lengthened and the work efficiency is lowered. There are problems that can cause an accident.

In addition, the above-mentioned conventional automatic locking device is automatically switched to a locked and unlocked state by the weight of the container. When the container is tilted by centrifugal force during corner rotation during operation, a part of the container outside the corner is lifted and the dead weight is increased. Due to the removal, the locking device of the corresponding part is switched to an unlocked state, so there is a problem that the container is separated and can lead to an overturn accident.

In addition, the automatic locking device has a complicated structure, which increases the installation cost, and causes frequent breakdowns due to the complex structure, making it impossible to load and unload containers, and the trailer cannot be operated until the repair is completed. As a result, there is a problem that not only causes considerable business loss but also increases repair costs.

In addition, even if it is replaced with an automatic locking device, there is a problem in that significant replacement costs occur because all existing manual locking devices must be removed and the automatic locking device must be reinstalled.

KR 10-2010-0056538 A KR 10-0182902 B1

An object of the present invention for solving the problems derived from the foregoing background art is to provide a container locking device that allows a plurality of locking assemblies installed on the upper frame of a trailer to be automatically locked and unlocked depending on whether or not the container is loaded. will be.

Another object of the present invention is to provide a container locking device capable of stably maintaining a locked state without a locking assembly being switched to an unlocked state even when the container is tilted when a corner is turned during driving.

In addition, an object of the present invention is to prevent business loss due to inoperability by easily converting the locking assembly to a manual method even if the automatic locking assembly is inoperable due to component failure or damage. It is to provide a container lock that allows you to do this.

In addition, it is possible to reduce installation costs by simplifying the structure, and enables automatic supplementary installation without removing the previously installed manual locking device, thereby reducing facility replacement costs Provides a container locking device is to do

On the other hand, the object of the present invention is not limited to the purpose mentioned above, and other objects not mentioned will be clearly understood from the description below.

The above object, according to an embodiment of the present invention, at least four locking assemblies are arranged in two rows along the longitudinal direction on the upper frame of the trailer to be fastened or released to the binding member of the container; a drive assembly connected to the locking assembly so as to be interlocked and driving the locking assembly to engage or disengage; And a lock holding assembly installed between the locking assembly and the drive assembly to directly constrain a portion of the locking assembly or a portion of the drive assembly to restrict movement; can

Preferably, the lock holding assembly includes a housing, a locking bar provided to be reciprocally movable from the inside of the housing to the outside and closely attached to or spaced apart from one side of the locking assembly or the drive assembly, and the locking bar is connected to the locking assembly or the drive It is characterized in that it includes a holding control unit for moving so as to be in close contact with or spaced apart from one side of the assembly.

Preferably, the driving assembly includes a driving link disposed on the upper frame in the width direction and having one end bound to the locking assembly, and a driving link provided on the upper frame and driven according to whether a container is mounted to reciprocate the driving link. It is characterized in that it includes a driving member.

Preferably, the lock holding assembly includes a locking block connected so as to interlock with the driving link and having a variable position as the driving member reciprocates, a housing, and a locking block provided to be reciprocally moved from the inside to the outside of the housing Characterized in that it comprises a holding control unit for moving the locking bar to be in close contact with or spaced apart from one side of the locking bar, so that the locking bar is in close contact with or spaced apart from one side of the locking block.

Preferably, the holding control unit includes an elastic member provided inside the housing and elastically supporting the hanging bar, a holding wire connected to the hanging bar elastically supported by the elastic member to apply tension, and a predetermined external input It characterized in that it comprises an electric drive unit for applying or releasing tension to the holding wire according to the reciprocating movement of the hanging bar.

Preferably, the holding control unit further comprises a hook member provided in the form of a hook on the housing, and a hook member in the form of a ring that is fixedly coupled to one side of the holding wire and is fixed or released from the hook member, When the operation of the electric driving unit is impossible, it is characterized in that the conversion to a manual driving method for engaging and fixing the ring member to the hanging member by external manual tension applied to the holding wire.

According to the present invention according to the above embodiment, the following effects can be expected.

First, since a plurality of locking assemblies installed on the upper frame of the trailer are automatically locked and unlocked, loading and unloading of containers can be performed simply and quickly.

Second, since the lock holding assembly maintains the fastened state of the locking assembly even if the container is tilted during corner rotation during operation, the locking assembly does not switch to an unlocked state and the locked state can be stably maintained at all times.

Third, even if it is inoperable due to malfunction or damage, each locking assembly and lock holding assembly can be easily switched to an individual manual method, so there is an effect of preventing business loss due to inoperability in advance.

Fourth, it is possible to supplement the automatic method according to the embodiment of the present invention by recycling the manual locking assembly previously installed on the upper frame of the existing trailer, so that the replacement work is easy and the replacement cost can be greatly reduced. .

Figures 1a and 1b are cross-sectional views showing the state before and after the operation of the manual locking device according to the prior art,
Figures 2a and 2b are cross-sectional views showing the state before and after the operation of the automatic locking device according to the prior art,
3 is a conceptual diagram showing a container locking device according to an embodiment of the present invention;
4 is a conceptual diagram specifically showing a first locking unit according to an embodiment of the present invention;
5 is a conceptual diagram showing in detail the connection relationship between the first locking unit and the drive assembly;
6 is a conceptual diagram for explaining the operating principle of the container locking device according to the first embodiment of the present invention;
7 is a conceptual diagram for explaining the operating principle of the container locking device according to the second embodiment of the present invention;
8 is a conceptual diagram for explaining the operating principle of the container locking device according to the third embodiment of the present invention;
9 is a conceptual diagram for explaining the operating principle of the container locking device according to the fourth embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and those skilled in the art in the art to which the present invention belongs It is provided to fully inform the person of the scope of the invention. And terms used in this specification are for describing the embodiments, and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, the drawings and detailed descriptions of configurations and their actions and effects, which can be easily known by those skilled in the art, are simplified or omitted, and will be described in detail focusing on parts related to the present invention.

As shown in FIG. 3, the container locking device according to an embodiment of the present invention includes a locking assembly 100, a driving assembly 500, and a lock holding assembly 300.

First, at least four locking assemblies 100 are arranged in two rows along the longitudinal direction of the upper frame of the trailer to be fastened or released to the binding member of the container.

Here, the locking assembly 100 may include a first locking unit 120 vertically coupled to the container and a second locking unit 140 horizontally coupled to the container.

As shown in FIG. 4, the first locking unit 120 has a cylindrical body 122 that moves up and down, and is formed on the upper end of the body 122 to move the container C according to the rotation angle. The head part 124 fastened or unfastened to the binding sphere formed in the vertical direction of the head part 124, and a rotary lever protruding from one side of the lower end of the body part 122 to adjust the rotation angle of the head part 124. section 126.

At this time, the body part 122, the head part 124, and the rotary lever part 126 constituting the first locking unit 120 may be accommodated in a housing as shown in FIG. 4 .

A buffer unit 190 for buffering and supporting the container C is provided in the enclosure so that the left and right balance can be maintained smoothly when the container C is loaded or unloaded. That is, interference due to rotation of the head part 124 of the first locking unit 120 can be prevented in advance by maintaining the left-right balance during loading or unloading of the container C.

The buffer unit 190 as described above includes a support member 192 provided inside the enclosure to buffer and support the container C, and a coupling member 196 extending downward from the support member 192 and coupled through the lower portion of the enclosure. And, it may include a high-compression spring 194 interposed between the lower end of the support member 192 and the lower surface of the housing to elastically support the support member 192. At this time, the buffer unit 190 is not limited to the configuration as described above and may be implemented in other deformable configurations, of course.

In addition, a horizontal slip prevention block 128 surrounding a part of the body portion 122 of the first locking unit 120 at a predetermined distance apart may be further included. In this state, since the body portion 122 of the first locking unit 120 is spaced apart, impact is not directly applied to the body portion 122 so that damage or twisting can be prevented in advance. Therefore, it is possible to improve durability of the first locking unit 120 and to minimize functional failure by simply implementing a coupling structure.

And, as shown in FIG. 9, the second locking unit 140 is provided at the corner of the upper frame 10 of the trailer where the corner casting of the container C is located, so that the container C is attached to the upper frame 10 of the trailer. ) so that it can be seated and fixed.

The second locking unit 140 includes a sliding fastening part 142 in the form of a bar that is fastened or released to the through hole formed in the corner casting of the container C, and the sliding fastening part 142 to the through hole. It includes a push lever part 144 that slides to a position where it is fastened or released, and a drive spring 145 interposed between the push lever part 144 and the enclosure to elastically support the push lever part 144. .

Next, the driving assembly 500 is connected to the locking assembly 100 so as to be interlocked and drives the locking assembly 100 to engage or disengage so that the locking assembly 100 is fastened or fastened to the container C. allow it to be released.

As illustrated in FIGS. 6 to 9 , the drive assembly 500 includes a drive link 580 disposed in the upper frame 10 in the width direction and having one end bound to the locking assembly 100, It includes a driving member 590 provided on the upper frame 10 to reciprocate the driving link 580 by driving depending on whether a container is loaded or not.

As illustrated in FIGS. 6 to 9, the drive member 590 may be provided in a hinged state to the upper frame 10 in a state supported by bearings, and the shaft portion is firmly secured by the bearings. It is supported so that the shaft can be easily rotated.

In the drive assembly 500 as described above, when a container is loaded on the upper frame 10, the upper end of the drive member 590 protruding upward is pressed so that the drive member 590 rotates, and the container moves to the upper frame 10. When loading and unloading from the drive member 590, which was pressed, is rotated back to its original position by the guide spring 270 of the guide assembly 200. Accordingly, the driving link 580 moves in the width direction of the upper frame 10 as the driving member 590 rotates, and drives the guide assembly 200 so that the locking assembly 100 is fastened to the binding member of the container. or to allow them to be disconnected.

And, referring to FIG. 5 , a guide assembly 200 may be connected between the first locking unit 120 and the driving assembly 500 .

The guide assembly 200 is fixedly coupled to an operating member 210 formed with a binding hole 212 to which the rotation lever unit 126 of the first locking unit 120 is coupled, and the operating member 210 A first fixing member 250 and a second fixing member 290 having one end facing each other at a predetermined distance from the first fixing member 250 and the other end connected to the driving link 580; A guide spring 270 interposed between the fixing member 250 and the second fixing member 290 may be included.

The guide assembly 200 configured as described above maintains and releases the tension of the driving link 580 reciprocating according to the operating radius of the driving member 590 by the guide spring 270, thereby maintaining the first locking unit. The rotation lever unit 126 of 120 can be operated smoothly.

On the other hand, the binding hole 212 of the operating member 210 is formed long in the longitudinal direction so that the binding pin 127 formed at the end of the rotary lever unit 126 can be easily inserted. Here, it is preferable that the surface of the binding hole 212 facing the binding pin 127 is tapered. Accordingly, when the binding pin 127 is bound again after being removed from the binding hole 212, it can be easily inserted into the binding hole 212 by sliding through the tapered slope even if it is not in an accurate position.

Also, the rotation lever unit 126 of the first locking unit 120 may be coupled to or separated from the body unit 122 by a bolting member 125 . Therefore, if necessary, the first locking unit 120 is prevented from interlocking the first locking unit 120 and the drive assembly 500 by releasing the binding between the rotary lever unit 126 and the guide assembly 200 described above. ) can be switched from automatic to manual. That is, manual operation is possible by releasing the bolting member 125 when the first locking unit 120 is not used or operation is impossible due to a failure and manual switching is required.

At this time, the structure for manual conversion of the first locking unit 120 is not limited and can be changed to a structure having the same purpose and effect. For example, the binding pin 127 formed on the rotation lever unit 126 is formed in a bolt shape and can be coupled to or separated from an end of the rotation lever unit 126 .

Next, the lock holding assembly 300 is installed between the locking assembly 100 and the drive assembly 500 and directly constrains a portion of the locking assembly 100 or a portion of the drive assembly 500 to move 6 to 8 illustrate the lock holding assembly 300 implemented in the first locking unit 120, and FIG. 9 is the lock holding assembly 300 implemented in the second locking unit 140 ) is illustrated.

The container is tilted by the centrifugal force when the trailer in a state in which the container is loaded is rotated at a corner, and at this time, the outer portion of the upper frame 10 facing the width direction is lifted with a small gap. Therefore, as the container is lifted, the driving member 590, which has been pressed, rotates in the unlocking direction, and there is a problem that the locking assembly 100 interlocking therewith may also be released. The lock holding assembly 300 of the present invention It is applied like the embodiment of FIGS. 6 to 9 to fundamentally block the unlocking operation of the locking assembly 100 .

6 is a conceptual diagram for explaining the operating principle of the container locking device according to the first embodiment of the present invention, and FIG. 7 is a conceptual diagram for explaining the operating principle of the container locking device according to the second embodiment of the present invention. Here, the first and second embodiments show the lock holding assembly 300 applied to the first locking unit 120 .

The lock holding assembly 300 according to the first and second embodiments is provided to reciprocate from the inside of the housing 350 to the outside of the housing 350, and the locking assembly 100 or the drive assembly ( 500) in close contact with or spaced apart from one side of the hanging bar 330, and the holding control unit 380 for moving the hanging bar 330 in close contact with or spaced apart from one side of the locking assembly 100 or the driving assembly 500 can include

8 is a conceptual diagram for explaining the operating principle of the container locking device according to the third embodiment of the present invention, and FIG. 9 is a conceptual diagram for explaining the operating principle of the container locking device according to the fourth embodiment of the present invention. Here, the third embodiment shows the lock holding assembly 300 applied to the first locking unit 120, and the fourth embodiment shows the lock holding assembly 300 applied to the second locking unit 140.

The lock holding assembly 300 according to the third and fourth embodiments is connected so as to interlock with the drive link 580, and the position is changed as the drive member 590 reciprocates, and the locking groove on one side ( 312) is formed on the locking block 310, the housing 350, and the housing 350 are provided to be reciprocally movable from the inside to the outside, and the locking bar is in close contact with or spaced apart from the locking groove 312 of the locking block 310 ( 330), and a holding control unit 380 for moving the locking bar 330 in close contact with or separated from the locking groove 312.

Specifically, the holding control unit 380 includes an elastic member 382 provided inside the housing 350 and elastically supporting the hanging bar 330, and a hanging bar 330 elastically supported by the elastic member 382. A holding wire 384 connected to and provided to apply tension, and an electric driving unit for applying or releasing tension to the holding wire 384 according to a preset external input so that the hanging bar 330 moves back and forth ( 386) may be included.

Here, since the electric drive unit 390 can be electrically controlled through a control module (not shown), etc., it is possible to automatically implement the present invention. At this time, an operating panel (not shown) for operating the control module may be installed outside the trailer or inside the vehicle.

Although not shown in the embodiment of the present invention, a sensor, a control module, and a warning lamp that electrically sense and interlock with the driving of the above-described components may be further added. For example, a sensor is provided in at least one of the components to detect whether or not an operation is performed so that a state during operation may be known. In addition, a sensor is also provided at a position adjacent to the locking assembly 100 so that the locking or unlocking state can be known.

The signal detected by the sensor is transmitted to the control module so that it can be used for more extended signal processing. Furthermore, it may further include a warning lamp electrically connected to the control module, and the warning lamp flashes a color indicating attention when the electric drive unit operates, indicating whether the locking assembly 100 is locked or unlocked. Colors are displayed differently. Therefore, since the driver or workers can easily grasp the operating state of the locking assembly 100 as well as the fixed state of the container, safe work is possible. In addition, a warning speaker generating a warning sound when the electric drive unit operates may be electrically connected to the control module.

Meanwhile, the above-described lock holding assembly 300 may be manually switched in preparation for a case in which the electric driving unit 390 becomes inoperable due to a failure.

For manual switching of the lock holding assembly 300, the hanging bar 330 is elastically supported by an elastic member 382, and the holding wire 380 is made of a wire. Therefore, by manually applying or releasing tension on the wire, the locking bar 330 can be moved to a position where it is spaced apart from the locking block 310 or in close contact with it.

Furthermore, in order to facilitate manual conversion of the lock holding assembly 300, a hanging member 372 provided in a hook shape on one side of the housing 350 and one side of the holding wire 384 are fixedly coupled It is preferable to further include a ring member 374 in the form of a ring that is fixed or released from the hook member 372 . Therefore, when the operation of the electric driving unit 386 becomes impossible, the ring member 374 is caught and fixed to the hanging member 372 by the external manual tension applied to the holding wire 384, thereby switching to the manual driving method will be able to do it easily.

According to the embodiments of the present invention described so far, the following effects can be expected.

First, since a plurality of locking assemblies installed on the upper frame of the trailer are automatically locked and unlocked, loading and unloading of containers can be performed simply and quickly.

Second, since the lock holding assembly maintains the fastened state of the locking assembly even if the container is tilted during corner rotation during operation, the locking assembly does not switch to an unlocked state and the locked state can be stably maintained at all times.

Third, even if it is inoperable due to malfunction or damage, each locking assembly and lock holding assembly can be easily switched to an individual manual method, so there is an effect of preventing business loss due to inoperability in advance.

Fourth, it is possible to supplement the automatic method according to the embodiment of the present invention by recycling the manual locking assembly previously installed on the upper frame of the existing trailer, so that the replacement work is easy and the replacement cost can be greatly reduced. .

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the scope of the invention which follows may be better understood. Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the claims and equivalent concepts should be construed as being included in the scope of the present invention.

C: container
10: upper frame
100: locking assembly
120: first locking unit
122: body part
124: head part
125: bolting member
126: rotary lever part
127: binding pin
128: horizontal slip prevention block
140: second locking unit
142: sliding fastening part
144: push lever
145: drive spring
190: buffer unit
192: support member
194: high compression spring
196: coupling member
200: guide assembly
210: operating member
212: Binding Hall
250: first fixing member
270: guide spring
290: second fixing member
300: lock holding assembly
310: jamming block
312: catch groove
330: hanging bar
350: housing
372: hanging member
374: ring member
380: holding control unit
382: elastic member
384: holding wire
386: electric drive unit
500: drive assembly
580: drive link
590: driving member

Claims (6)

At least four locking assemblies arranged in two rows along the longitudinal direction of the upper frame of the trailer to be fastened or released to the binding member of the container;
a drive assembly connected to the locking assembly so as to be interlocked and driving the locking assembly to engage or disengage; and
A lock holding assembly installed between the locking assembly and the drive assembly to directly constrain a part of the locking assembly or a part of the drive assembly to restrict movement; including,
The drive assembly includes a drive link disposed on the upper frame in the width direction and having one end bound to the locking assembly, and a drive member provided on the upper frame and driven according to whether a container is mounted to reciprocate the drive link, ,
The lock holding assembly is connected to interlock with the driving link and is provided with a locking block whose position is variable as the driving member reciprocates, and a housing, provided to be reciprocated from the inside of the housing to the outside, in close contact with one side of the locking block or A container locking device comprising a spaced-apart locking bar and a holding control unit for moving the locking bar so that the locking bar is in close contact with or separated from one side of the locking block. delete delete delete According to claim 1,
The holding control unit,
An elastic member provided inside the housing and elastically supporting the hanging bar;
A holding wire connected to a hanging bar elastically supported by the elastic member and provided to apply tension thereto;
Container locking device characterized in that it comprises an electric driving unit for applying or releasing tension to the holding wire according to a predetermined external input so that the hanging bar is reciprocally moved. According to claim 5,
The holding control unit,
A hanging member provided in the form of a hook on the housing;
It is fixedly coupled to one side of the holding wire and further includes a ring member in the form of a ring that is locked or released from the hanging member,
Container locking device, characterized in that when the operation of the electric driving unit is switched to a manual driving method for engaging and fixing the ring member to the hanging member by external manual tension applied to the holding wire.

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