CN109159732B

CN109159732B - Container locking device

Info

Publication number: CN109159732B
Application number: CN201811313026.6A
Authority: CN
Inventors: 曹阳
Original assignee: Zhuzhou Kemeng Vehicle Paths Co ltd
Current assignee: Zhuzhou Kemeng Vehicle Paths Co ltd
Priority date: 2018-11-06
Filing date: 2018-11-06
Publication date: 2023-12-26
Anticipated expiration: 2038-11-06
Also published as: CN109159732A

Abstract

The invention discloses a container locking device, which comprises a first lock arranged on a bearing surface for bearing a container; the first lock comprises an elastic supporting rod and two split locks which are symmetrically arranged, and two ends of the elastic supporting rod are respectively connected with the two split locks; the lock is provided with a locking piece which is used for being inserted into a corner fitting hole on the bottom surface of the container to lock the container, and a combining state and a separating state are arranged between the two locking pieces; the elastic stay bar is pressed down in the downward movement process of the container along the vertical direction, the elastic stay bar drives the two locking blocks to switch from the combined state to the separated state, when the container is locked, the two locking blocks are positioned in corner fitting holes of the container, and the outer walls of the two locking blocks are attached to the wall of the corner fitting holes; the container is separated from the elastic supporting rod in the vertical upward process, and the elastic supporting rod rebounds to drive the two locking blocks to switch from the separated state to the combined state. The invention locks the container by means of its own weight, and can ensure the safety and self-locking of the container in the running process.

Description

Container locking device

Technical Field

The invention belongs to the technical field of transportation, and particularly relates to a container locking device.

Background

Container transportation is the safest carrier for modern cargo transportation, and security is the "lifeline" of container transportation. The case carrying tens of tons or even tens of tons of heavy goods, once slipped or turned sideways out of the car body, will bring a significant loss to life and property safety of the person, so that the container and the car body must be connected and fixed by special locks. According to the relevant regulations of the Ministry of transportation of the people's republic of China, the regulations of the management of road goods transportation and station yards and the regulations of the transportation of container cars, for vehicles engaged in container transportation, a fixed container rotating lock device must be equipped, the specific number can be equipped according to the specification of the container, usually 4 or 8, and 10 are adopted for individual special use.

The container lock and the vehicle body are connected in various modes, and some are directly welded on the vehicle body, and the lock head can only rotate but cannot longitudinally move, so that the container lock is called as a fixed type; the rotary lock is fixedly connected with the vehicle body through the bracket, the lock head can rotate and can vertically stretch out and draw back, and the lock head can be lowered below the bearing surface when not in use so as to be suitable for different standard box types, and the rotary lock is called lifting type; the other rotary lock is hinged on the vehicle body or made to be movable, so that the fastening position can be adjusted, and the utilization rate of the vehicle is greatly improved; in addition, the plug-in rotary lock is also provided, and the lock shaft extends into the fixed part of the box body like a bolt and is generally matched with other types of rotary locks for use.

However, the locking state between the container and the vehicle body is often damaged due to the movement of the container caused by the working conditions such as acceleration and braking of the vehicle during the transportation process, so that the container falls off from the vehicle.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the container locking device which has a self-locking function and can ensure the safety of a container and the integrity of goods in the transportation process.

In order to solve the technical problems, the invention adopts the following technical scheme:

a container locking device comprising a first lock provided on a carrying surface for carrying a container; the first lock comprises an elastic supporting rod and two split locks which are symmetrically arranged, and two ends of the elastic supporting rod are respectively connected with the two split locks;

the lock is provided with a locking piece which is used for being inserted into a corner fitting hole on the bottom surface of the container to lock the container, the locking piece extends along the vertical direction, and a combining state and a separating state are arranged between the two locking pieces;

the elastic brace rod is pressed down in the process of downward movement of the container along the vertical direction, the elastic brace rod drives the two locking blocks to switch from the combined state to the separated state, when the container is locked, the two locking blocks are positioned in corner fitting holes of the container, and the outer walls of the two locking blocks are attached to the corner fitting hole walls of the container; the container is separated from the elastic supporting rod in the vertical upward process, and the elastic supporting rod rebounds to drive the two locking blocks to switch from the separated state to the combined state.

By means of the structure, the locking block is contacted with the inner wall of the corner fitting hole of the container, the longitudinal gap between the locking block and the inner wall of the corner fitting hole of the container is eliminated, the container is locked by means of the self weight of the container, the locking device has the characteristics of automatic locking, no longitudinal gap, elimination of the impact property and incapability of falling out of the container and the locking device, and the safety and the self-locking property of the device are maintained in the operation process. Therefore, the phenomenon that the container falls off from the vehicle due to the fact that the locking mechanism between the container and the vehicle body is damaged due to the fact that the container moves in series due to the working conditions of acceleration, braking and the like of the vehicle in the transportation process is avoided.

As a further improvement of the above technical scheme:

the invention adopts the following specific structure to realize that the elastic stay bar drives the two locking blocks to switch from the merging state to the separating state:

the sub-lock comprises a lock head, a screw rod and a nut; the lock head comprises a first lock sleeve and the lock block fixed at the upper end of the first lock sleeve; the first lock further comprises a lock seat, and a first hole for accommodating the two sub-locks is formed in the lock seat along the longitudinal direction perpendicular to the vertical direction; the lock seat is also provided with a first groove communicated with the first hole along the vertical direction; the two sub-locks are arranged in the first hole and can axially move along the first hole, the first lock sleeve is sleeved at one end of the screw rod close to the other sub-lock through threads, the nut is sleeved at one end of the screw rod far away from the other sub-lock through non-self-locking threads, and the threads of the first lock sleeve and the nut are right-handed threads; the two locking blocks extend out of the first groove, and the first groove is provided with a first travel space for the locking blocks to reciprocate along the longitudinal direction; the two ends of the elastic stay bar are respectively fixedly connected with the two nuts, and a second stroke space for the nuts to reciprocate along the longitudinal direction is arranged in the first hole.

The elastic stay bar is pressed down in the downward moving process of the container, after the elastic stay bar is pressed, two ends of the elastic stay bar respectively move leftwards and rightwards to push the driving nut to displace, and the driving screw is forced to rotate and linearly move due to the fact that the driving nut cannot rotate and the driving screw and the driving nut do not have self-locking threads; and the driving screw drives the locking block to switch from the combining state to the separating state under the action of the driving screw and the first lock sleeve thread. In the container lifting process, under the rebound effect of the elastic supporting rod, the elastic supporting rod is retracted towards the middle to drive the driving nut to move towards the middle, and the movement state of each thread pair is just opposite to the movement state of the container pressing elastic supporting rod, so that the whole first lock is finally restored to the initial position.

The two ends of the elastic stay bar are fixedly connected with corresponding nuts through end shafts respectively; the end shaft is arranged along the transverse direction perpendicular to the vertical direction and the longitudinal direction, a second groove for the end shaft to extend out is formed in the lock seat, and the second groove is provided with a third stroke space for the end shaft to reciprocate along the longitudinal direction.

The two elastic supporting rods are arranged at two ends of the lock seat along the transverse direction.

The split lock further comprises a right-handed thread sleeve fixed on the screw rod, and the screw rod is in threaded connection with the first lock sleeve through the right-handed thread sleeve.

The split lock further comprises a left-handed thread sleeve fixed on the screw rod, the screw rod is in threaded connection with the lock seat through the left-handed thread sleeve, and the right-handed thread sleeve and the left-handed thread sleeve are respectively arranged at two ends of the nut.

The right-handed thread sleeve and the left-handed thread sleeve are fixedly connected with the screw rod through keys.

The first lock action state is described as follows (the movement state of each part of the left lock head is described as an example, the movement state of the right lock head is symmetrical with the left lock head, and the driving nut and the lock head can not rotate but only move along the longitudinal direction because the driving nut and the lock head are limited by the lock seat, the right screw sleeve, the driving screw and the left screw sleeve are fixedly connected, which is equivalent to the rigid whole, and no relative movement exists among the three parts in the whole movement process):

1. when the container falls, the elastic supporting rod is pressed down by the self weight, and the elastic supporting rod moves linearly towards the two sides of the longitudinal direction to drive the two driving nuts to move linearly towards the two sides of the longitudinal direction respectively, and the driving nut on the left side moves leftwards and the driving nut on the right side moves rightwards.

2. Because the drive nut cannot rotate, the drive screw is forced to rotate (the drive nut and the drive screw are not self-locking thread pairs, that is, the drive screw is forced to rotate under the condition that the drive nut cannot rotate when the drive nut is subjected to axial force).

3. Assuming that the drive screw has rotated 360, i.e. one complete revolution, taking the example of a 30mm lead of the drive screw to drive nut thread pair, the drive nut is moved 30mm to the left.

4. When the driving screw rotates for one whole circle, the right-hand thread sleeve also rotates for one whole circle, and the first lock sleeve and the right-hand thread sleeve are in threaded connection (such as trapezoidal threads) because the lock head cannot rotate, so that the lock head can linearly move relative to the right-hand thread sleeve (and the driving screw and the left-hand thread sleeve) in the axial direction, and the moving direction of the lock head is leftward according to rotation analysis. Taking the example that the screw pair leads of the right-handed screw sleeve and the first lock sleeve are 16mm, the moving distance is 16mm.

5. Meanwhile, since the lock base is fixed (rigidly fixed on a bearing surface for bearing the container), that is, the lock base rotates in the whole screw pair, each component is stationary in the process of linear movement. When the driving screw (the right-handed screw sleeve and the left-handed screw sleeve) rotates for one whole circle, the left-handed screw sleeve rotates in an internal thread formed by the lock seat to move leftwards, and the moving distance of the left-handed screw sleeve and the lock seat is 16mm by taking the screw pair lead of the left-handed screw sleeve and the lock seat as an example.

6. The driving screw rod moves leftwards linearly and drives the driving nut and the lock head to move leftwards linearly, and the moving distance is 16mm.

7. When the driving screw rotates for one whole circle, the distance of the left movement of the driving nut is 30mm+16mm=46 mm, the driving screw moves 16mm to the left side except the rotation of the driving screw, and the distance of the left movement of the lock head is 16mm+16mm=32 mm.

8. When the container is lifted, the container is separated from the elastic supporting rod, the elastic supporting rod is retracted towards the middle under the rebound action of the elastic supporting rod, the driving nut is driven to move towards the middle, the movement state of each thread pair is just opposite to the movement state of the container pressing the elastic supporting rod, and finally the whole first lock is restored to the initial position.

The lock seat is divided into an upper lock seat and a lower lock seat which are fixedly connected through a fastener.

The container locking device also comprises a second lock arranged at a position close to the side surface of the container;

the second lock comprises a second lock sleeve, a lock rod and a spring; the second lock sleeve, the lock rod and the spring are all arranged along the direction perpendicular to the side face of the container, a lock hole arranged along the axial direction is formed in the second lock sleeve, the lock rod penetrates into the lock hole from one end close to the container and can axially move, and the end face of the lock rod close to the container is an inclined plane; the lock hole is far away from one end of the container and is provided with a bottom surface, and the spring is elastically deformable and arranged between the bottom surface and the lock rod.

By means of the structure of the second lock, the container firstly contacts with the inclined plane of the lock rod under the action of gravity, the second lock compresses the spring to move towards the outer side far away from the container under the action of the axial force of the lock rod, and when the whole container falls down, the lock rod of the second lock returns under the action of the counter force of the spring, the side face of the container is clamped, the container is prevented from jumping or falling off in the transportation process, and the safety of the container in the transportation process is further guaranteed.

The second lock further comprises an end cover sleeved at one end, far away from the container, of the second lock sleeve, and the inner side surface of the end cover forms the bottom surface of the lock hole.

To facilitate unlocking, the container locking device further comprises a control assembly comprising a control lever;

the control rod is arranged along the side direction perpendicular to the container, one end far away from the container penetrates into the lock hole and can axially move, the spring is sleeved on the control rod, one end of the control rod extending into the lock hole is connected with the lock rod, and the other end of the control rod extends out of the lock hole.

When the container is unlocked, only the control rod is pulled out by manpower through the control handle, so that the lock rod is driven to move to the outer side far away from the container, and the container is convenient to lift. In addition, the container corner fitting leaves, and under the elastic action of the elastic supporting rod, the driving nut is displaced towards the lock head direction, so that the driving screw is forced to rotate; the lock head is displaced towards the merging direction due to the action of self-locking threads of the right-handed thread sleeve and the left-handed thread sleeve at the two ends of the driving screw. The longitudinal gap is formed between the locking block and the container, so that the container is convenient to hang out.

One end of the control rod extending out of the lock hole is connected with the control handle.

The two arms of the U-shaped handle and one end of the control rod extending out of the lock hole are respectively provided with a shaft hole, one end of the control rod extending out of the lock hole is connected with the two arms of the U-shaped handle through a first pin shaft, and one end of the control rod extending out of the lock hole is arranged between the two arms of the U-shaped handle.

The roller is located above the control rod and is connected with the U-shaped handle through a second pin shaft.

The lock rod is far away from the terminal surface of container and has seted up the accommodation hole, the control rod stretches into in the accommodation hole, the one end and the bottom surface butt of accommodation hole of spring, the other end and the medial surface butt of end cover of spring.

The bottom of the accommodating hole is provided with a groove matched with the protrusion, and the protrusion is in interference fit with the groove.

The first lock is fixed on the base through the lock seat; the side seat is provided with a mounting hole with the axial direction perpendicular to the side surface of the container, and the second lock sleeve is fixed in the mounting hole.

The positioning check ring comprises a check ring portion and a positioning portion which is arranged on the check ring portion and extends along the axial direction of the check ring portion, the second lock sleeve is provided with an extending portion which extends towards the upper end of the radial direction, a positioning hole matched with the positioning portion is formed in the extending portion, and the positioning portion penetrates through the positioning hole and then is fixed with the side seat.

The positioning part is connected with the positioning hole through a bearing.

Compared with the prior art, the invention has the advantages that:

1. when the container is locked, the self weight of the container is used for locking the container, so that the container has the characteristics of automatic locking, no longitudinal clearance, elimination of the impact property of the container and the locking device and incapability of releasing, and the safety and the self-locking property of the device are maintained in the running process. The locking mechanism between the container and the vehicle body is damaged, so that the container falls off from the vehicle, and the safety of the container and the integrity of goods in the transportation process are ensured.

2. The invention has the advantages of simple and reliable structure, simple and convenient operation, high installation manufacturability and maintainability and strong universality.

Drawings

Fig. 1 is a schematic cross-sectional structure of a container locking device of the present invention.

Fig. 2 is a schematic perspective view of the first lock of the present invention.

Fig. 3 is a schematic cross-sectional view of the first lock of the present invention.

Fig. 4 is a schematic cross-sectional view of the second lock of the present invention.

Fig. 5 is a schematic cross-sectional view of a control assembly according to the present invention.

Legend description: 1. a first lock; 11. an elastic stay bar; 12. a lock head; 121. a locking piece; 122. a first sleeve; 13. a screw; 14. a nut; 15. an end shaft; 16. a right-handed screw sleeve; 17. a left-handed screw sleeve; 18. a lock base; 181. a first hole; 1811. a second stroke space; 182. a first groove; 1821. a first travel space; 183. a second groove; 1831. a third stroke space; 184. locking the seat; 185. a lower lock base; 2. a second lock; 21. a second lock sleeve; 211. a lock hole; 212. an extension; 2121. positioning holes; 22. a lock lever; 221. a receiving hole; 2211. a groove; 23. a spring; 24. an end cap; 25. positioning a retainer ring; 251. a retainer ring portion; 252. a positioning part; 26. a bearing; 3. a control assembly; 31. a control lever; 311. a protrusion; 32. a control handle; 321. a U-shaped handle; 322. a handle ball; 323. a first pin; 324. a roller; 325. a second pin; 4. a mounting base; 41. a base; 42. a side seat; 421. and (5) mounting holes.

Detailed Description

The invention is further described below in connection with specific preferred embodiments, but it is not intended to limit the scope of the invention.

Examples:

as shown in fig. 1, the container locking device of the present embodiment includes a first lock 1, a second lock 2, a control assembly 3, and a mount 4.

The mounting 4 comprises a base 41 for securing the first lock 1 to a load bearing surface for carrying a container, such as a load bearing surface of a car body or a ship carrying a container, and a side mount 42 for securing the second lock 2 in a position adjacent to a side of the container.

As shown in fig. 2 and 3, the first lock 1 comprises an elastic stay 11, two split locks symmetrically arranged and a lock base 18.

The lock seat 18 is provided with a first hole 181 for accommodating two sub-locks along a longitudinal direction y perpendicular to the vertical direction z; the lock base 18 is further provided with a first groove 182 communicating with the first hole 181 in the vertical direction z.

The sub-lock comprises a lock head 12, a screw 13, a nut 14, an end shaft 15, a right-handed thread sleeve 16 and a left-handed thread sleeve 17; the locking head 12 includes a first lock sleeve 122 and a locking piece 121 fixed to an upper end of the first lock sleeve 122, the locking piece 121 being for insertion into a corner piece hole of a bottom surface of a container to lock the container. The locking pieces 121 extend in the vertical direction z, with a combined state and a separated state between the two locking pieces 121.

The two split locks are disposed in the first hole 181 and can move axially along the first hole 181, and the two lock blocks 121 extend out of the first groove 182, and the first groove 182 has a first travel space 1821 for the lock blocks 121 to reciprocate along the longitudinal direction y.

The nut 14, the right-handed thread sleeve 16 and the left-handed thread sleeve 17 are all sleeved on the screw 13, and the right-handed thread sleeve 16 and the left-handed thread sleeve 17 are respectively arranged at two ends of the nut 14. The nut 14 and the screw 13 are non-self-locking thread pairs. The screw 13, the right-handed screw sleeve 16 and the left-handed screw sleeve 17 are provided with key grooves, and after the screw 13, the right-handed screw sleeve 16 and the left-handed screw sleeve 17 are matched, keys are inserted into the key grooves to limit the relative movement of the screw 13, the right-handed screw sleeve and the left-handed screw sleeve. The screw 13 is in threaded connection with the first lock sleeve 122 through the right-handed screw sleeve 16, and the screw 13 is in threaded connection with the lock seat 18 through the left-handed screw sleeve 17. DT 52X 16/2 self-locking threads are arranged between the right-handed screw sleeve 16 and the first lock sleeve 122 and between the left-handed screw sleeve 17 and the lock base 18.

The two ends of the elastic stay bar 11 are respectively fixedly connected with corresponding nuts 14 through end shafts 15; the first bore 181 has a second travel space 1811 therein for the nut 14 to reciprocate in the longitudinal direction y. The end shaft 15 is disposed along a transverse direction x perpendicular to the vertical direction z and perpendicular to the longitudinal direction y, and the lock base 18 is provided with a second groove 183 for extending the end shaft 15, and the second groove 183 has a third stroke space 1831 for reciprocating the end shaft 15 along the longitudinal direction y.

In this embodiment, two elastic supporting rods 11 are provided, and the two elastic supporting rods 11 are disposed at two ends of the lock base 18 along the transverse direction x.

In this embodiment, the lock base 18 is divided into an upper lock base 184 and a lower lock base 185 that are fastened by fasteners. The first lock is secured to the base 41 by a lower lock mount 185.

As shown in fig. 4, the second lock 2 includes a second lock sleeve 21, a lock lever 22, a spring 23, an end cap 24, and a retainer ring 25.

As shown in fig. 5, the control assembly 3 includes a lever 31 and a control handle 32.

The lock rod 22, the spring 23 and the control rod 31 are all arranged along the direction vertical to the side surface of the container, the second lock sleeve 21 is provided with a lock hole 211 arranged along the axial direction, the lock rod 22 penetrates into the lock hole 211 from one end close to the container and can axially move, and the end surface of the lock rod 22 close to the container is an inclined surface; the end cap 24 is sleeved on the end, far away from the container, of the second lock sleeve 21.

The control rod 31 penetrates into the lock hole 211 from one end far away from the container and can axially move, the spring 23 is sleeved on the control rod 31, one end of the control rod 31 extending into the lock hole 211 is connected with the lock rod 22, and the other end of the control rod 31 extends out of the lock hole 211 and is connected with the control handle 32.

The end surface of the lock lever 22 far away from the container is provided with a containing hole 221, the control lever 31 extends into the containing hole 221, one end of the spring 23 is abutted with the bottom surface of the containing hole 221, and the other end of the spring 23 is abutted with the inner side surface of the end cover 24.

In this embodiment, a groove 2211 matching with the protrusion 311 is formed at the bottom of the accommodating hole 221, and the control rod 31 and the lock rod 22 are fixedly connected by interference fit between the protrusion 311 and the groove 2211.

With continued reference to fig. 1, the side base 42 is provided with a mounting hole 421 having an axial direction perpendicular to a side surface of the container, and the second lock sleeve 21 is fixed in the mounting hole 421.

With continued reference to fig. 1 and 4, the positioning collar 25 includes a collar portion 251 and a positioning portion 252 disposed on the collar portion 251 and extending along an axial direction of the collar portion 251, the second lock sleeve 21 has an extension portion 212 extending toward an upper end in a radial direction, the extension portion 212 is provided with a positioning hole 2121 matching with the positioning portion 252, and the positioning portion 252 is fixed with the side seat 42 after passing through the positioning hole 2121.

In this embodiment, the positioning portion 252 is connected to the positioning hole 2121 via the bearing 26.

With continued reference to fig. 5, shaft holes are formed on both arms of the U-shaped handle 321 and on one end of the control rod 31 extending out of the lock hole 211, one end of the control rod 31 extending out of the lock hole 211 is connected with both arms of the U-shaped handle 321 through the first pin shaft 323, and one end of the control rod 31 extending out of the lock hole 211 is arranged between both arms of the U-shaped handle 321.

In this embodiment, the roller 324 is located above the control lever 31, and the roller 324 is connected to the U-shaped handle 321 through the second pin 325.

In the first lock, a lock seat adopts a casting or forging structure, threads are processed at the matching position of the lock seat and a left-handed screw sleeve, and the threads are subjected to heat treatment to improve the wear resistance; the first and the left-handed screw sleeves are forged, and are provided with threads matched with the driving screw, the threads are required to be heat treated to improve wear resistance, the driving screw, the first and the left-handed screw sleeves are provided with key grooves, and keys are inserted into the key grooves after the threads are matched to limit relative movement; the tapered lock head adopts a forging structure, the upper part is in the shape of a tapered lock block, the lower part is in a hollow cylindrical structure, and threads are machined on the hollow part and are matched with end shaft threads formed by a right-handed threaded sleeve; the elastic stay bar is made of spring steel into a plate spring-like structure, has good elasticity, and is provided with connecting holes on the left and the right which are connected to the driving nut through the end shaft.

In the second lock, the second lock sleeve is formed by machining after casting of QT500, and has relatively high strength, toughness and wear resistance; the lock rod is manufactured by adopting 35 # steel, the end part is of an inclined plane structure, the lock rod has a guiding function, and the middle part is hollowed out to install a control rod, a spring and the like; the control rod is made of No. 45 steel, one end of the control rod is connected with the lock rod through threads, a spring is precompressed between the lock rod and the control rod, the spring provides restoring force, the end of the control rod is connected with the control handle through a pin shaft, and the upper part of the lock sleeve is provided with a positioning check ring on the mounting seat through a screw.

In the control handle, the roller and the handle are manufactured by adopting QT-500, the roller has higher strength and wear resistance, the roller is fixed on the handle through a shaft and a pin, and the middle of the upper part of the handle is of a clamping plate structure so as to be connected with a control rod, and the lower part of the handle is fixedly connected with a handle ball, so that an operator can conveniently operate the control handle.

The mount pad adopts QT500 to cast and carries out machining, installs first lock, second and control handle above, and drilling is connected with external device as the interface so that whole locking device is connected with the external device on the mount pad side web, and the mount pad passes through bolted connection and links together with first lock, links together with second lock and control handle through the screw connection.

The container contacts the inclined plane of second lock at first under the action of gravity, and the second lock compresses the spring and moves outwards under the axial force effect of locking lever, and the locking lever of second lock restores to the throne under spring counter-force effect after whole container falls the position, chucking container, avoids it to take place to jump or drop in the transportation.

The elastic stay bar is pressed down in the process of continuously moving the container downwards, after the elastic stay bar is pressed, the two ends of the elastic stay bar respectively move leftwards and rightwards to push the driving nut to displace, and the driving screw is forced to rotate because the driving nut cannot rotate; the tapered end is displaced to the outside direction of the first lock due to the action of DT 52X 16/2 self-locking threads of the right-handed thread sleeve (right-handed thread sleeve) and the left-handed thread sleeve (left-handed thread sleeve) at the two ends of the driving screw. The locking block is contacted with the hole wall of the corner fitting of the container, the longitudinal gap between the locking block and the hole wall of the container is eliminated, the container is automatically locked, and the condition that the container is in series movement due to the working conditions of acceleration, braking and the like of the vehicle in the transportation process is avoided, so that the locking mechanism between the container and the vehicle body is damaged, and the container falls off from the vehicle.

When the container is unlocked, only the control rod is pulled out by manpower through the control handle, and the locking rod is connected to move in the direction away from the container, so that the container can be lifted; the container corner fitting leaves, the driving nut is displaced towards the sliding claw under the elastic action of the elastic supporting rod, and the driving screw is forced to rotate; the sliding claw is displaced towards the central direction of the longitudinal lock under the action of DT 52X 16/2 self-locking threads of the right-handed thread sleeve and the left-handed thread sleeve at the two ends of the driving screw. The longitudinal gap is formed between the locking block and the container, so that the container is convenient to hang out.

The foregoing description is not intended to limit the invention in any way, but is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. A container locking device, characterized by comprising a first lock (1) arranged on a carrying surface for carrying a container; the first lock (1) comprises an elastic supporting rod (11) and two split locks which are symmetrically arranged, and two ends of the elastic supporting rod (11) are respectively connected with the two split locks;

the lock is provided with lock blocks (121) which are used for being inserted into corner piece holes on the bottom surface of the container to lock the container, the lock blocks (121) extend along the vertical direction (z), and a combining state and a separating state are arranged between the two lock blocks (121);

the elastic support rod (11) is pressed down in the downward movement process of the container along the vertical direction (z), the elastic support rod (11) drives the two locking blocks (121) to switch from the combined state to the separated state, when the container is locked, the two locking blocks (121) are positioned in corner fitting holes of the container, and the outer walls of the two locking blocks (121) are attached to the corner fitting hole walls of the container; the container is separated from the elastic supporting rod (11) in the upward process along the vertical direction (z), and the elastic supporting rod (11) rebounds so as to drive the two locking blocks (121) to switch from the separated state to the combined state;

the split lock further comprises a lock head (12), a screw rod (13) and a nut (14); the lock head (12) comprises a first lock sleeve (122) and a lock block (121) fixed at the upper end of the first lock sleeve (122); the first lock (1) further comprises a lock seat (18), and the lock seat (18) is provided with a first hole (181) for accommodating two sub-locks along a longitudinal direction (y) perpendicular to the vertical direction (z); the lock seat (18) is also provided with a first groove (182) communicated with the first hole (181) along the vertical direction (z); the two sub-locks are arranged in the first hole (181) and can axially move along the first hole (181), the first lock sleeve (122) is sleeved on one end of the screw rod (13) close to the other sub-lock through threads, the nut (14) is sleeved on one end of the screw rod (13) far away from the other sub-lock through non-self-locking threads, and the two lock blocks (121) extend out of the first groove (182); the first groove (182) has a travel space for the lock block (121) to reciprocate in the longitudinal direction (y); the two ends of the elastic stay bar (11) are respectively fixedly connected with two nuts (14), and a travel space for the nuts (14) to reciprocate along the longitudinal direction (y) is arranged in the first hole (181);

the two elastic support rods (11) are arranged, and the two elastic support rods (11) are arranged at two ends of the lock seat (18) along the transverse direction (x).

2. A container locking device according to claim 1, characterized in that the two ends of the elastic stay (11) are respectively fastened with the corresponding nuts (14) by means of end shafts (15); the end shaft (15) is arranged along a transverse direction (x) perpendicular to the vertical direction (z) and perpendicular to the longitudinal direction (y), a second groove (183) for the end shaft (15) to extend out is formed in the lock seat (18), and the second groove (183) is provided with a travel space for the end shaft (15) to reciprocate along the longitudinal direction (y).

3. The container locking device according to claim 1, wherein the partial lock further comprises a right-hand thread sleeve (16) fixed to the screw (13), the screw (13) being threadedly connected to the first lock sleeve (122) by means of the right-hand thread sleeve (16).

4. A container locking device according to any one of claims 1-3, further comprising a second lock (2) arranged in a position close to the side of the container;

the second lock (2) comprises a second lock sleeve (21), a lock rod (22) and a spring (23); the second lock sleeve (21), the lock rod (22) and the spring (23) are all arranged along the direction perpendicular to the side surface of the container, the second lock sleeve (21) is provided with a lock hole (211) arranged along the axial direction, the lock rod (22) penetrates into the lock hole (211) from one end close to the container and can axially move, and the end surface of the lock rod (22) close to the container is an inclined surface; the lock hole (211) is provided with a bottom surface at one end far away from the container, and the spring (23) is elastically deformable and arranged between the bottom surface and the lock rod (22).

5. The container locking device according to claim 4, further comprising a control assembly (3), the control assembly (3) comprising a control lever (31) and a control handle (32);

the control rod (31) is arranged along the side direction perpendicular to the container, the control rod (31) penetrates into the lock hole (211) from one end far away from the container and can axially move, the spring (23) is sleeved on the control rod (31), one end of the control rod (31) stretches into the lock hole (211) and is connected with the lock rod (22), and the other end of the control rod (31) stretches out of the lock hole (211) and is connected with the control handle (32).

6. The container locking device according to claim 5, characterized in that the control assembly (3) further comprises a control handle (32), and that the end of the control rod (31) extending beyond the locking hole (211) is connected to the control handle (32).

7. The container locking device according to claim 6, further comprising a mounting (4), the mounting (4) comprising a base (41) and a side seat (42), the first lock (1) being secured to the base (41) by a lock seat (18); the side seat (42) is provided with a mounting hole (421) with the axial direction perpendicular to the side surface of the container, and the second lock sleeve (21) is fixed in the mounting hole (421).