KR101622144B1

KR101622144B1 - Locking Apparatus of Container For Trailer

Info

Publication number: KR101622144B1
Application number: KR1020150085960A
Authority: KR
Inventors: 조현일; 한광희; 조재민
Original assignee: 유건이엔지 주식회사
Priority date: 2015-06-17
Filing date: 2015-06-17
Publication date: 2016-05-19

Abstract

The present invention can lock / unlock a container to a trailer automatically or manually by operating the locker due to the weight of the container, prevent flow and departure due to increase in fixing force of the container during operation of the trailer, A locking device for a trailer container, comprising: an outer housing mounted on the upper frame and having an opening formed on at least one surface thereof; An inner housing in the form of a hollow tube, the inner housing being spaced apart from the outer housing and having at least one opening; An automatic operation member accommodated in the inner housing and moving up and down by a load of the first elastic member and the container; A cylindrical body portion accommodated in the hollow portion of the automatic operation member and vertically moving by the second elastic member and the automatic operation member; and a second elastic member formed on the upper end of the body portion, A locking protrusion formed on one side of the circumferential surface of the body portion to limit the upward movement of the body portion and a locking protrusion formed on the other side of the circumferential surface of the body portion to induce the rotation of the body portion in conjunction with the up- A rocker comprising an induction portion for engaging with the guide; A hollow tube-shaped inner tube which is accommodated in the inner housing and accommodates the second elastic member and a part of the body of the locker; A guide member which is detachably inserted in the inner side of the inner tube so that an end thereof is engaged with the guide portion and rotates the locker moving up and down; A locker extension portion detachably coupled to a lower end of the body portion of the locker to extend below a hollow portion of the inner housing, a length adjuster coupled to the locker extension portion at a predetermined position in a variable position, And a lever which is protruded and formed to be gripable from one side of the length adjusting portion.

Description

[0001] The present invention relates to a locking device for a container for a trailer,

The present invention relates to a locking device for a trailer container, and more particularly, to a locking device for a trailer, and more particularly, to a locking device for locking and unlocking a container by automatically or manually connecting a container to a trailer, To a locking device of a container for a trailer which is capable of preventing a flow and a departure from being caused by an accident.

In general, a container is a type of transport container, which is a container of a certain size capable of transporting a large quantity of cargo made for land transportation or shipping, and refers to a cargo for safely and conveniently transporting cargo. It is also a standardized receiving port for bulk cargo.

These containers are loaded on container vehicles on the ground and transported in large containers by using large container lines for container loading.

As a means of transporting the container overland, it is used in a vehicle called a trailer, which is generally organized and attracted to a tractor without a driving power device or a control device.

The trailer is designed to fit the size of the container so that a standardized container can be loaded, and is designed in consideration of the weight of the cargo loaded on the container. The trailer designed in this way is equipped with one or two containers to prevent the container from getting out of the trailer in case of sudden braking, curved road, slope, And a locking device for fixing the container to the upper portion of the container.

The use of such locking devices is institutionally mandated and prior art of manual or automatic methods has been proposed.

1A and 1B are cross-sectional views showing a state before and after the operation of a locking device of a manual system according to the related art.

1A and 1B, the locking device of the manual type according to the prior art has a locking or releasing action by a rotation and an elevating operation of the lever 3 at a plurality of places of the upper frame 1 provided on the trailer The locker 2 for locking the locker 2 is provided and the operator operates the lever 3 of the locker 2 in a state in which the container 4 is mounted at a predetermined position of the upper frame 1, Is inserted and fastened to the binding hole 5 formed on the bottom surface of the container.

That is, the locking device of the manual system performs the function of making the trailer and the container loaded thereon be integrally bound to ensure stability during transportation.

However, in most cases, most of the drivers do not operate the locking device because of the troublesome operation of the locking device while the container is loaded. In particular, A large accident such as a container dropping or falling from a trailer may be caused.

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

Figs. 2A and 2B are cross-sectional views showing the state before and after the operation of the locking device of the automatic system according to the related art.

2A and 2B, an automatic locking device according to the related art is installed inside a cylindrical housing 10 mounted on an upper frame of a trailer, and the elastic force of the elastic spring 22 and the external force A head portion 31 which is installed coaxially with the hollow portion 21 of the operating member 20 and is inserted into the container and is inserted into the hollow portion 21 of the operating member 20, A locker (30) having a locking protrusion (32) having a locking protrusion (32) which is in contact with and interlocked with the actuating hole (20) during an immersion operation; A slit groove 41 formed in the tubular groove 40 and having a curved surface for guiding the locker 30 to rotate in a predetermined range when the locker 30 is lowered, And fixed to the lid 11 coupled to the bottom surface of the housing 10 so as to be freely slidable via the spring 52 A direction of the rocker 30 which is moved up and down along the slit grooves 41 with a fixed axis formed at the outer circumferential edge of the upper end of the support shaft 50 and inserted into the slit grooves 41 And includes a pin 51 for displacing it.

That is, the automatic locking device can automatically lock and unlock the container by its own weight in the course of loading or unloading the container, thereby transporting the heavyweight container in a safely locked state, Thereby preventing inconveniences caused by the user.

However, as described above, in the locking device of the automatic system according to the related art, locking and unlocking actions are not normally performed in case of malfunction of the built-in parts. In this case, after detaching the locking device, removing it from the trailer, There is a problem that must be done.

Further, a horizontal impact load is applied to the container due to the operation of the trailer, such as sudden start, sudden braking, sharp curve, etc. At this time, a direct impact is applied to the locker and the hollow portion and the operation hole, And the durability is lowered to cause a malfunction.

On the other hand, the container is loaded or unloaded on a trailer through a dedicated device, a forklift, or the like. At this time, the head portion of the locker may not be correctly inserted into the binding hole of the container and may be displaced. In this case, the load of the container is transferred to the head portion of the locker as it is, not the actuating hole, and the locker is vertically lowered only in a state where the locker is not normally inserted, so that the parts combined with the locker may be broken, There is a problem.

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

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems derived from the prior art, and an object of the present invention is to provide a trailer capable of easily switching the manual locking and unlocking functions even if the locking and unlocking actions of the automatic locking mechanism are not normally performed due to a malfunction. And a locking device for the container.

Another object of the present invention is to provide a locking device for a container for a trailer which can prevent a shock directly applied to a rocker due to a horizontal load acting on the container, thereby improving durability and minimizing a malfunction.

It is another object of the present invention to provide a locking device for a trailer container that prevents breakage of components coupled with the locker and ensures smooth coupling even if the head portion of the locker is misaligned with the coupling hole of the container.

Meanwhile, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

According to an embodiment of the present invention, there is provided a locking device for a trailer container, which is provided in a plurality of upper frames of a trailer and binds containers on the upper frame, the locking device comprising: An outer housing formed therein; An inner housing in the form of a hollow tube, the inner housing being spaced apart from the outer housing and having at least one opening; An automatic operation member accommodated in the inner housing and moving up and down by a load of the first elastic member and the container; A cylindrical body portion accommodated in the hollow portion of the automatic operation member and vertically moving by the second elastic member and the automatic operation member; and a second elastic member formed on the upper end of the body portion, A locking protrusion formed on one side of the circumferential surface of the body portion to limit the upward movement of the body portion and a locking protrusion formed on the other side of the circumferential surface of the body portion to induce the rotation of the body portion in conjunction with the up- A rocker comprising an induction portion for engaging with the guide; A hollow tube-shaped inner tube which is accommodated in the inner housing and accommodates the second elastic member and a part of the body of the locker; A guide member which is detachably inserted in the inner side of the inner tube so that an end thereof is engaged with the guide portion and rotates the locker moving up and down; A locker extension portion detachably coupled to a lower end of the body portion of the locker to extend below a hollow portion of the inner housing, a length adjuster coupled to the locker extension portion at a predetermined position in a variable position, And a lever which is protruded so as to be grasable from one side of the length adjusting portion. The locking device of a container for a trailer according to claim 1,

Preferably, the rocker further includes a horizontal pawl preventing jaw that surrounds a part of the body of the rocker with a predetermined gap.

Preferably, the automatic operation member includes: a pressing portion protruding and retracted above the hollow portion of the outer housing and the inner housing as being spaced apart from or in contact with the container; and a locking portion protruding from the lower portion of the pressing portion in the locker direction, And an engaging portion for engaging with the engaging portion.

Preferably, a first coupling protrusion is formed along the outer circumference at the lower end of the body portion of the rocker, a second coupling protrusion is formed at the upper end of the locker extension of the male coupling pin, the first coupling protrusion, And a buffering protrusion having an embossing shape is formed on one of the opposite surfaces to which the protrusions are coupled.

Preferably, the guide portion of the locker is formed of spiral protrusions formed along the circumferential surface of the body portion, and the pair of guide members are spaced apart from each other so that a part of the spiral protrusion is accommodated in the space portion therebetween .

Preferably, the guide portion of the locker is formed of a pair of helical protrusions formed along the circumferential surface of the body portion, and the pair of helical protrusions are spaced apart from each other, Is accommodated.

Preferably, the guide portion of the locker has a spiral groove formed along a circumferential surface of the body portion, and an end of the guide member is inserted.

Preferably, at least one of both ends of the guide portion is bent in the axial direction of the body portion.

According to another aspect of the present invention, there is provided a locking device for a trailer container, which is provided on a plurality of upper frames of a trailer and binds containers on the upper frame, the locking device comprising: An outer housing; An inner housing in the form of a hollow tube, the inner housing being spaced apart from the outer housing and having at least one opening; An automatic operation member accommodated in the inner housing and moving up and down by a load of the first elastic member and the container; A cylindrical body portion accommodated in the hollow portion of the automatic operation member and vertically moving by the second elastic member and the automatic operation member; and a second elastic member formed on the upper end of the body portion, A locker including a head portion to be released; An inner tube having a hollow tube shape received in the interior of the inner housing with the automatic operation port interposed therebetween and accommodating the second elastic member and the body portion, and having guide grooves formed in a spiral shape at one side thereof; A guide member detachably coupled to the through hole formed in the body portion of the locker through the guide groove to rotate the locker in accordance with the vertical movement of the automatic operation member; A locker extension portion detachably coupled to a lower end of the body portion of the locker to extend below a hollow portion of the inner housing, a length adjuster coupled to the locker extension portion at a predetermined position in a variable position, And a lever which is protruded so as to be grasable from one side of the length adjusting portion. The locking device of a container for a trailer according to claim 1,

Preferably, the guide member protrudes in the direction of the inner housing from the guide groove at one end to limit the upward movement of the body portion.

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

First, even if the locking and unlocking actions of the automatic method are not normally performed due to the occurrence of a malfunction, the locking and unlocking functions can be used without restriction by switching easily by a manual method.

Second, the impact applied directly to the rocker due to the horizontal load acting on the container is prevented, thereby improving the durability and minimizing the dysfunction by simply implementing the coupling structure.

Thirdly, even if the head portion of the locker is not correctly inserted into the binding hole of the container and is dropped in a misaligned state, it is possible to prevent breakage of the component coupled with the locker and to achieve smooth binding.

Fourth, the automatic locking function is effective to improve the working efficiency in the case of moving the container up and down.

Fifth, there is an effect that safety can be ensured by keeping the binding state at all times during container transportation.

Sixth, there is an effect that the convenience of the driver can be pursued by using both automatic and manual methods.

FIGS. 1A and 1B are cross-sectional views showing a state before and after operation of a locking device according to a conventional technique,
FIGS. 2A and 2B are cross-sectional views showing a state before and after operation of a locking device of an automatic system according to the related art,
FIGS. 3A and 3B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a first embodiment of the present invention,
4A and 4B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a second embodiment of the present invention,
5A and 5B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a third embodiment of the present invention,
6A and 6B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a fourth embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various different forms, and these embodiments are not intended to be exhaustive or to limit the scope of the present invention to the precise form disclosed, It is provided to inform the person completely of the scope of the invention. And the terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. The singular forms herein include plural forms unless the context clearly dictates otherwise.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Brief Description of Drawings FIG. 1 is a block diagram of a computer system according to an embodiment of the present invention; FIG. 2 is a block diagram of a computer system according to an embodiment of the present invention; FIG.

3 to 6, the upper frame 9 of the trailer is provided with a plurality of upper and lower frames 10a and 10b for fastening the container C on the upper frame 9, An inner housing 200 spaced apart from the outer housing 100; an automatic operation opening 300 accommodated in the inner housing 200; A locker 400 accommodated in a hollow portion of the inner housing 200 and an inner tube 600 in the form of a hollow tube spaced apart from the inner housing 200; A guide member 700 for rotating the locker 400 and a male operating pin 800 for manually rotating the locker 400 when the guide member 700 is detached.

The above-described respective constitutions are combined with each other by an organic relation and operate in an interlocking manner, and the detailed constitutions formed specifically in each constitution can be described in detail below as providing a remarkable effect in the organic operation of the present invention .

First, the outer housing 100 is mounted on the upper frame 9 and has openings formed on at least one surface thereof. The opening is not specifically shown but is formed so that an inner guide member 700, which will be described later, is visible when viewed from the outside.

The outer housing 100 has a pressing part 310 of the automatic operation device 300 and a head part 430 of the locker 400 protruding above the upper frame 9. Here, although not shown, the shape of the hollow portion of the outer housing 100 is formed to correspond to the shape of the circumferential portion of the pressing portion 310, thereby guiding the upward and downward movement of the pressing portion 310 smoothly, So that the portion 310 does not deviate in the horizontal direction and maintains a constant position.

The inner housing 200 is spaced apart from the outer housing 100 and has a hollow tube shape, and at least one opening 220 is formed.

The inner housing 200 is received in the outer housing 100 while being supported by a support member 500 formed at a lower portion together with an inner cylinder 600 to be described later, So that a later-described operation pin 800 can be protruded. The support member 500 is coupled to the lower end of the outer housing 100 to support the first elastic member 520 and the second elastic member 540 together with the inner housing 200 and the inner tube 600 .

The automatic operation member 300 is accommodated in the inner housing 200 and moves up and down by the load of the first elastic member 520 and the container C. [

The automatic operation tool 300 includes a pressing part 310 that protrudes and retracts above the hollow part of the outer housing 100 and the inner housing 200 as being separated from or in contact with the container C, And a locking part 330 protruding from the lower part of the locking part 310 in the direction of the locker 400 to closely contact and lower the locking protrusion 450.

The locker 400 includes a cylindrical body portion 410 received in the hollow portion of the automatic operation tool 300 and moving up and down by the second elastic member 540 and the automatic operation tool 300, A head part 430 formed at an upper end of the body part 410 to be fastened or unfastened to a binding hole of the container C according to a rotation angle of the body part 410, A locking protrusion 450 for restricting upward movement of the body part 410 and a locking protrusion 450 formed on the other side of the circumferential surface of the body part 410 for interlocking with the upward and downward movement of the automatic operation tool 300, 470b, and 470c for guiding the rotation of the first and second rotating bodies 410 and 410, respectively. Here, various embodiments of the guide portions 470a, 470b, and 470c will be described later.

The horizontal pushing jaw 490 may be fixed to the outer housing 100. The horizontal pushing jaw 490 may include a horizontal pushing protrusion 490 for enclosing a part of the body 410 of the locker 400 with a predetermined gap. Thereby protecting the internal rocker 400. [

That is, since the horizontal pushing jaw 490 is fixed to the outer housing 100, the locker 400 is wrapped around the locker 400 so that the horizontal pushing jaw 490 is directly applied to the locker 400 due to the horizontal load acting on the container C To prevent shocks. Accordingly, it is possible to improve the durability of the apparatus, as well as to simplify the coupling structure and minimize the malfunction.

Next, the inner cylinder 600 is received in the inner housing 200 to receive a portion of the body 410 of the locker 400. In the inner cylinder 600, a coupling hole for coupling a guide member 700 to be described later is formed, and a thread is formed on an inner circumferential surface of the coupling hole, so that the coupling of the guide member 700 is restricted.

Next, the guide member 700 is detachably coupled with the guide portions 700a, 470b, and 470c from the outside of the inner tube 600 to be coupled to the guide portions 470a, 470b, and 470c, . A screw thread is formed on the outer circumferential surface of the guide member 700 and can be screwed to the coupling hole of the above-described inner tube.

Although not shown, a guide fixing member, which is fixed in close contact with at least a part of the guide member 700, is detachably coupled to the outside of the inner tube 600 to prevent the guide member 700 from being detached have.

Next, the male operating port 800 includes a locker extension portion 810 detachably coupled to the lower end of the body portion 410 of the locker 400 and extending downwardly of the hollow portion of the inner housing 200, And a lever 850 protruding from one side of the length adjuster 830 so as to be gripped by the length adjuster 830. [ do.

While the guide member 700 is coupled to the guide portions 470a, 470b, and 470c of the locker 400, the manual operation tool 800 may rotate in conjunction with the automatic operation tool 300, When the member 700 is unbonded from the guide portions 470a, 470b, and 470c of the locker 400, the member 700 can rotate regardless of the guide portions 470a, 470b, and 470c. The head portion 430 of the locker 400 can be engaged or disengaged from the binding claw of the container C by rotating the locker 400 manually by operating the lever 850 manually. Therefore, even if the automatic locking and unlocking operations are not normally performed due to the occurrence of the malfunction, the locking and unlocking functions can be used without any restriction by easily switching to the manual mode.

A lever fixing member 510 for fixing the lever 850 may be formed on the support member 500. The lever fixing member 510 may fix the lever 850 after the manual operation, Thereby preventing the locker 400 in the engaged state from rotating.

Hereinafter, various embodiments will be described with reference to FIGS. 3 to 6. FIG. However, the description of the configuration that is the same as the configuration described above will be omitted, and only the characteristic configuration will be described in detail.

FIGS. 3A and 3B are cross-sectional views illustrating a state before and after operation of a locking device for a trailer container according to a first embodiment of the present invention. 3B shows a state after the operation of the automatic operation device 300 is started. As a result, the automatic operation device 300 is lowered and the head part 430 is rotated to rotate the container C, As shown in Fig.

3A and 3B, the guide portion 470a of the locker 400 is formed of spiral protrusions formed along the circumferential surface of the body portion 410, and the pair of guide members 700 are spaced apart from each other So that a part of the spiral protrusion can be received in the space portion therebetween.

A first engaging protrusion 412 is formed along the outer circumference at the lower end of the body 410 of the locker 400 and a second engaging protrusion 412 is formed at the upper end of the locker extending portion 810 of the male actuating pin 800. [ (812) may be formed. As shown in the enlarged view of FIG. 3A, on one surface of the opposing surface to which the first engaging protrusion 412 and the second engaging protrusion 812 are coupled, an embossing buffer protrusion The buffer protrusion 560 disperses an impact load and reduces friction between the body part 410 and the locker extension part 810 when the locker 400 rotates.

4A and 4B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a second embodiment of the present invention. 4B shows a state before the head unit 430 is engaged and the automatic operation unit 300 is lowered as a state after the operation. As a result, the head unit 430 rotates to rotate the container C, As shown in Fig.

4A and 4B, the guide portion 470b of the locker 400 is formed of a pair of helical protrusions formed along the circumferential surface of the body portion 410, and the pair of helical protrusions are spaced apart from each other So that the end portion of the guide member 700 can be accommodated in the space portion therebetween.

5A and 5B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a third embodiment of the present invention. 5B shows a state after the operation is performed. As the automatic operation tool 300 is lowered, the head part 430 rotates and the container C is rotated. As shown in FIG. 5A, As shown in Fig.

5A and 5B, the guide portion 470c of the locker 400 is formed as a spiral groove along the circumferential surface of the body portion 410 so that the end of the guide member 700 can be inserted . In this embodiment, the induction unit 470c and the guide member 700 are each formed as a pair, but they may be formed of a single guide unit and a guide member.

3 to 5, it is preferable that at least one of both ends of the guide portions 470a, 470b, and 470c is bent in the axial direction of the body 410 of the locker 400 . This is because the head 430 of the locker 400 can not be correctly inserted into the coupling hole of the container and the damage to the parts coupled with the locker 400 is prevented So as to enable smooth binding with the container binding means.

That is, even if the automatic operation device 300 or the locker 400 is moved upward or downward by an instantaneous external force, the locker 400 is rotated by a portion bent in the axial direction for a predetermined period to start rising or falling .

Therefore, it is possible to prevent the guide member 700 bound to the guide portions 470a, 470b, and 470c from being damaged by an instantaneous impact or an external force.

5A, the length B of the curved end portions of the guide portions 470a, 470b, and 470c may be set to be longer than the length of the lower end of the head portion 430, And the upper end of the guiding member 700 is preferably the same as the length A between the guide portions 470a, 470b, and 470c.

6A and 6B are cross-sectional views showing a state before and after operation of a locking device for a trailer container according to a fourth embodiment of the present invention. 6B shows a state before the head unit 430 is engaged and FIG. 6B shows a state after the operation. As the automatic operation unit 300 is lowered, the head unit 430 rotates to rotate the container C, As shown in Fig.

The description of the same configuration already described in the previous embodiment will be omitted, and only the configuration changed in this embodiment will be described.

6A and 6B, an induction groove 620 is formed at one side of the inner cylinder 600 in a spiral manner, and a guide member 700 passes through the induction groove 620, And is detachably coupled to the through hole 420 formed in the base 410. Accordingly, when the automatic operation member 300 is moved up and down, the guide member 700 slides along the guide groove 620 and the locker 400 rotates.

Here, the through hole 420 of the body portion 410, which is formed to engage with the guide member 700, is preferably formed as a long elongated hole in the longitudinal direction.

The length B of the through hole 420 is the same as the length A between the lower end of the head portion 430 and the upper end of the horizontal pushing jaw 490 when the locking device is in the pre- 620) and the guide member (700).

It is preferable that the guide groove 620 is formed so that a pair of the guide grooves 620 are opposed to each other to smooth the rotation of the locker 400.

One end of the guide member 700 protrudes in the direction of the inner housing 200 from the guide groove 620 to limit upward movement of the body portion 410.

The following effects can be expected with reference to the embodiments of the present invention described so far.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the claims of the invention to be described below may be better understood. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the appended claims and their equivalents should be construed as being included within the scope of the present invention.

100: outer housing
200: inner housing
220: opening
300: Automatic operation
310:
330:
400: Rocker
410:
412: first engaging projection
420: Through hole
430:
450:
470a, 470b, 470c:
490:
500: support member
510: Fixing member
520: first elastic member
540: second elastic member
560: Buffer projection
600: inner tube
620: guide groove
700: guide member
800: Number of operating tongs
810: Locker extension
812: second engaging projection
830:
850: Lever

Claims

A locking device for a trailer container which is provided in a plurality of trailer upper frames (9) and which binds a container (C) onto the upper frame (9)
An outer housing (100) mounted on the upper frame (9) and having an opening formed on at least one surface thereof;
An inner housing 200 spaced apart from the outer housing 100 and having at least one opening 220 formed therein;
An automatic operation member 300 accommodated in the inner housing 200 and moving up and down by a load of the first elastic member 520 and the container C;
A cylindrical body portion 410 received in the hollow portion of the automatic operation member 300 and moving up and down by the second elastic member 540 and the automatic operation member 300, A head part 430 formed at an upper end of the body part 410 and fastened or unclamped to a binding hole of the container C according to a rotation angle of the body part 410; An induction part 450 formed at the other side of the circumference of the body part 410 to guide the rotation of the body part 410 in conjunction with the up and down movement of the automatic operation tool 300, 470a, 470b, 470c;
A hollow tube type inner tube 600 housed in the inner housing 200 to receive the second elastic member 540 and a portion of the body 410 of the locker 400;
A guide member 700 for rotating the locker 400 which is detachably inserted in the inner side of the inner cylinder 600 so as to be coupled to the guide portions 470a, 470b and 470c so as to move up and down; And
A locker extension 810 detachably coupled to a lower end of the body 410 of the locker 400 and extended below the hollow portion of the inner housing 200, And a lever 850 protruding from one side of the length adjuster 830 so as to be gripped by the male adjuster 830;
And a locking device for locking the trailer container.

The method according to claim 1,
Further comprising a horizontal pivoting protrusion (490) for covering a part of the body part (410) of the locker (400) so as to be spaced apart from each other by a predetermined gap.

The method according to claim 1,
In the automatic operation device 300,
A pushing part 310 which protrudes and retracts above the hollow part of the outer housing 100 and the inner housing 200 as being separated from or in contact with the container C,
And a locking part (330) protruding from the lower part of the pressing part (310) in the direction of the locker (400) to close and lower the locking protrusion (450).

The method according to claim 1,
A first engaging projection 412 is formed along the outer circumference at the lower end of the body portion 410 of the locker 400 and a second engaging projection 812 is formed at the upper end of the locker extension portion 810 of the male- Is formed,
Wherein a buffer protrusion (560) of an embossed shape is formed on one of surfaces of the first engagement protrusion (412) and the second engagement protrusion (812) to which the first engagement protrusion (412) and the second engagement protrusion (812) are coupled.

The method according to claim 1,
The guide portion 470a of the locker 400 is formed of spiral protrusions formed along the circumferential surface of the body portion 410,
Wherein a pair of the guide members (700) are spaced apart from each other so that a part of the spiral protrusion is received in a space portion therebetween.

The method according to claim 1,
The guide portion 470b of the locker 400 is formed of a pair of spiral protrusions formed along the circumferential surface of the body portion 410,
Wherein the pair of spiral protrusions are spaced apart from each other so that an end portion of the guide member (700) is accommodated in a space portion therebetween.

The method according to claim 1,
Wherein the guide portion of the guide member is inserted into the guide portion of the locker so that the guide portion of the guide member is inserted into the guide portion of the locker.

8. The method according to any one of claims 5 to 7,
Wherein at least one of both ends of the guide portions (470a, 470b, 470c) is bent in the axial direction of the body portion (410).

A locking device for a trailer container which is provided in a plurality of trailer upper frames (9) and which binds a container (C) onto the upper frame (9)
An outer housing (100) mounted on the upper frame (9) and having an opening formed on at least one surface thereof;
An inner housing 200 spaced apart from the outer housing 100 and having at least one opening 220 formed therein;
An automatic operation member 300 accommodated in the inner housing 200 and moving up and down by a load of the first elastic member 520 and the container C;
A cylindrical body portion 410 received in the hollow portion of the automatic operation member 300 and moving up and down by the second elastic member 540 and the automatic operation member 300, And a head part (430) formed at the upper end and fastened or unfastened to a binding hole of the container (C) according to the rotation angle.
The second elastic member 540 and the body portion 410 are accommodated in the inner housing 200 with the automatic operation member 300 interposed therebetween. The first elastic member 540 and the body portion 410 are accommodated in a hollow tube shape. An inner tube 600 in which an induction groove 620 penetrating in a helical shape is formed;
The locker 400 is detachably coupled to the through hole 420 formed in the body 410 of the locker 400 through the guide groove 620 so that the locker 400, A guide member 700 for rotating the guide member 700; And
A locker extension 810 detachably coupled to a lower end of the body 410 of the locker 400 and extended below the hollow portion of the inner housing 200, And a lever 850 protruding from one side of the length adjuster 830 so as to be gripped by the male adjuster 830;
And a locking device for locking the trailer container.

10. The method of claim 9,
Wherein the guide member (700) is protruded in the direction of the inner housing (200) from the guide groove (620) to limit upward movement of the body portion (410).