CN219544618U - Rotary lock device of container transportation semitrailer - Google Patents

Abstract

The utility model discloses a rotary lock device of a container transportation semitrailer, which comprises a lock head, a lock shaft, a lock seat, a mounting frame, a limiting inclined column, a pressure sensor, a push plate, a linear driving device and a rack, wherein the top of the lock shaft is fixedly connected with the lock head, the lock seat is fixedly arranged at the top of the mounting frame, the lock shaft is inserted in the lock seat, the lock shaft is coaxially provided with a round platform part and a gear part, the pressure sensor is connected with the limiting inclined column, and the rack is meshed and connected with the gear part. The rack drives the gear part, the lock shaft and the lock head to rotate by 90 degrees in sequence, and the lock head locks the container on the semitrailer; the inclined surface of the limiting inclined column is attached to the round table part, so that the axial movement of the lock can be limited, the position of the lock head is fixed, and the container is fixed, so that the safety is high; the linear driving device drives the limiting inclined column to be far away from the round table part, so that the lock shaft is separated from the frame, the container and the frame are prevented from being lifted together by a crane, and the lifting safety is ensured.

Description

Rotary lock device of container transportation semitrailer

Technical Field

The utility model relates to the technical field of container transport semi-trailers, in particular to a rotary lock device of a container transport semi-trailer.

Background

In the road transportation of containers, containers are generally placed on container semitrailers for transportation. The fixed connection between the container and the container semitrailer is generally achieved by inserting an oblong button lock on the semitrailer into an oblong locking hole on the bottom of the container bottom corner piece, and then rotating the container by 90 degrees, wherein the button lock locks the container on the semitrailer.

The button lock operation of most of the existing container transportation semitrailers needs manual rotation Niu Suo, which is labor-consuming and has low efficiency; in the running process of the vehicle, the button lock has the risk of opening by oneself under the jolt vibration of the vehicle, and the container can fall down and accidents occur during transportation. Some novel automatic container semitrailers have an automatic control function, for example, patent application number CN201921091369.2 discloses an automatic control system for a lock of a container semitrailer and a container semitrailer, and Niu Suo is automatically controlled by a pneumatic system; niu Suosuo after stopping, niu Suo is locked through the linear driving device, so that the risk that the button lock is automatically opened under the jolt vibration of the vehicle is avoided.

However, when the container needs to be disassembled, if a driver forgets to unlock the button lock, the vehicle body can be lifted together when the container is lifted by the lifting machine, so that accidents are caused, and certain potential safety hazards exist.

The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a twist-lock device for a container transport semitrailer.

In order to achieve the above purpose, the utility model provides a rotary lock device of a container transportation semitrailer, which comprises a lock head, a lock shaft, a lock seat, a mounting frame, a limiting inclined column, a pressure sensor, a push plate, a linear driving device and a rack, wherein the lock shaft is fixedly connected with the lock head, the lock seat is fixedly arranged at the top of the mounting frame, the lock shaft is inserted in the lock seat and is in clearance fit with the lock seat, a round platform part and a gear part are coaxially arranged on the lock shaft, the linear driving device is arranged on the mounting frame, the limiting inclined column is driven by the linear driving device to linearly move along the radial direction of the lock shaft, the front end of the limiting inclined column is provided with an inclined plane for being in contact fit with the round platform part, the pressure sensor is connected with the limiting inclined column and is used for detecting the pressure between the limiting inclined column and the round platform part, and the rack is in meshed connection with the gear part and is driven by the linear driving device to linearly move along the direction perpendicular to the lock shaft. The mounting frame can be arranged on a front end cross beam and a rear end cross beam of the frame of the container transport vehicle, a locking head is inserted into a locking hole at the bottom of the container, the rack is driven to linearly move by a linear driving device, the gear part, the locking shaft and the locking head are driven to sequentially rotate by 90 degrees, the distance between the distal end of the locking head and the outer edge of the locking seat is 2-5 cm, and the container can be locked on the semitrailer after the locking head rotates by 90 degrees; after the lock head rotates 90 degrees, the inclined surface of the limiting inclined column is also attached to the round platform part, so that the lock shaft is limited to move upwards, the position of the lock head is fixed, and the container is fixed; under the state that the lock is not unlocked for the container, when the crane lifts the container vertically, the linear driving device can drive the limiting inclined column to be far away from the round platform part, the round platform part is not limited any more, the lock shaft can be separated from the frame at the moment, and the crane lifts the container, the lock head and the lock shaft together like a gecko tail breaking principle, so that the accident that the crane lifts the frame together is avoided.

Preferably, the limiting inclined column is sleeved with a transverse guide sleeve in a sliding manner, and the transverse guide sleeve is fixedly connected with the mounting frame. The transverse guide sleeve plays a role in guiding and supporting the limiting inclined column, when the lock shaft has a trend of moving upwards in the axial direction, the limiting inclined column is pushed through the round table part, so that the limiting inclined column has radial load, and at the moment, the transverse guide sleeve plays a role in radially supporting the limiting inclined column, so that the limiting inclined column is kept stable.

Preferably, the bottom of the mounting frame is fixed with a vertical guide sleeve, and the lower end of the lock shaft is inserted into the vertical guide sleeve. The vertical guide sleeve guides the lock shaft at the lower part of the lock shaft, so that the lock shaft keeps an upright posture, and the lock shaft can rotate in the vertical guide sleeve, thereby facilitating the locking head to lock or unlock the container; the lock shaft can ascend in the vertical guide sleeve and separate from the vertical guide sleeve when the limiting inclined column is far away from the round table part.

Preferably, the upper end of the lock shaft is provided with an expanding section, and the expanding section is inserted in the lock seat. The lock seat guides the lock shaft at the upper part of the lock shaft, so that the lock shaft keeps an upright posture, and the lock shaft can rotate in the lock seat, thereby facilitating the locking head to lock or unlock the container; the lock shaft can ascend from the lock seat and separate from the lock seat when the limiting inclined column is far away from the round table part.

Preferably, the axial projections of the gear part and the round table part are both positioned in the axial projection of the expanding section. That is, the outline of the expanding section is larger than the outline of the gear part and the circular truncated cone part, and when the lock shaft ascends in the lock seat, the gear part and the circular truncated cone part smoothly pass through the lock seat and cannot be blocked.

Preferably, one end of the limiting inclined column facing the pressure sensor is provided with a flange part, and the flange part is arranged at the detection end of the pressure sensor. Through setting up flange portion, be convenient for install the flange installation end at pressure sensor with spacing batter post, the axial pressure that pressure sensor detects spacing batter post and receive of being convenient for.

Preferably, the gear part is located below the round table. The larger the size design of the round platform part is, the higher the strength and the safety are, the smaller the size design of the gear part can be than the round platform part, and the rack can be driven to rotate; when the lock shaft moves upwards in the axial direction to drop the mounting frame, if the gear part is positioned above the round platform part, the round platform part can be in interference contact with the rack, so the gear part needs to be arranged below the round platform part.

Preferably, the linear driving device is arranged in one, the push plate is arranged at the output end of the linear driving device, the pressure sensor is arranged on the push plate, and the rack is fixedly arranged on the push plate. The linear driving device drives the pressure sensor and the rack to move linearly through the push plate.

Preferably, the number of the linear driving devices is two, the push plates are arranged at the output ends of the linear driving devices, the pressure sensor is arranged on one push plate, and the racks are fixedly arranged on the other push plate. The two linear driving devices work independently to control the rotation of the lock shaft and the axial limit of the lock shaft respectively.

The beneficial effects of this technical scheme:

1. the rack drives the gear part, the lock shaft and the lock head to rotate by 90 degrees in sequence, and the lock head locks the container on the semitrailer; the inclined plane of the limiting inclined column is attached to the round platform part, so that the lock can be limited to move upwards, the lock head is fixed in position, a container is fixed, manual operation is not needed, the container is more convenient, the risk of automatic opening can be avoided under jolt vibration, and the safety is high;

2. under the state that the lock is not unlocked the container, when the crane vertically lifts the container, the linear driving device can drive the limiting inclined column to be away from the round platform part, the round platform part is not limited any more, and the lock shaft can be separated from the frame at the moment, so that the crane lifts the container, the lock and the lock shaft together, accidents that the crane lifts the frame together are avoided, and the lifting safety is guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present utility model;

FIG. 2 is a state diagram I (spacing diagonal columns away from the circular truncated cone) of embodiment 1 of the present utility model;

FIG. 3 is a second state diagram (lock shaft lifting) of embodiment 1 of the present utility model;

fig. 4 is a state diagram three (lock unlocked) of embodiment 1 of the present utility model;

FIG. 5 is a bottom view of the lock shaft;

FIG. 6 is a schematic structural diagram of embodiment 2 of the present utility model;

FIG. 7 is a state diagram I (lock unlocked) of embodiment 2 of the present utility model;

FIG. 8 is a second state diagram (lock shaft lifting) of embodiment 2 of the present utility model;

in the figure, 1, a lock head; 2. a lock shaft; 21. a round table part; 22. a gear portion; 23. an expanding section; 3. a lock base; 4. a mounting frame; 5. limiting inclined columns; 51. an inclined plane; 52. a flange portion; 6. a pressure sensor; 7. a push plate; 8. a linear driving device; 9. a rack; 10. a transverse guide sleeve; 11. and a vertical guide sleeve.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Examples

Referring to fig. 1 to 5, an embodiment of the utility model provides a rotary lock device of a container transportation semitrailer, which comprises a lock head 1, a lock shaft 2, a lock seat 3, a mounting frame 4, a limiting inclined column 5, a pressure sensor 6, a push plate 7, a linear driving device 8 and a rack 9, wherein the lock head 2 is fixedly connected with the lock head 1, the lock seat 3 is fixedly arranged at the top of the mounting frame 4, the lock shaft 2 is inserted in the lock seat 3 and is in clearance fit with the lock seat 3, a round table part 21 and a gear part 22 are coaxially arranged on the lock shaft 2, and the gear part 22 is positioned below the round table part 21; the round table portion 21 and the gear portion 22 may be integrally formed with the lock shaft 2 by machining, casting, or the like, or the round table portion 21 and the gear portion 22 may be formed by fixedly attaching a round table and a gear to the lock shaft 2.

The linear driving device 8 is a hydraulic cylinder, the hydraulic cylinder is connected with a vehicle-mounted hydraulic station, and the hydraulic cylinder can also be an air cylinder which is connected with a vehicle-mounted pneumatic system. The two linear driving devices 8 are arranged on the mounting frame 4, the output ends of the two linear driving devices 8 are provided with push plates 7, the pressure sensor 6 is fixedly arranged on one push plate 7, and the rack 9 is fixedly arranged on the other push plate 7; one end of the limiting inclined column 5, which faces the pressure sensor 6, is provided with a flange part 52, and the flange part 52 is arranged at the detection end of the pressure sensor 6;

the limiting inclined column 5 is driven by a corresponding linear driving device 8 to linearly move along the radial direction of the lock shaft 2, the front end of the limiting inclined column 5 is provided with an inclined plane 51 used for being matched with the contact of the round table part 21, the pressure sensor 6 is used for detecting the pressure between the limiting inclined column 5 and the round table part 21, and the rack 9 is meshed with the gear part 22 and is driven by a corresponding driving device to linearly move along the direction vertical to the lock shaft 2.

The limiting inclined column 5 is sleeved with a transverse guide sleeve 10 in a sliding manner, and the transverse guide sleeve 10 is fixedly connected with the mounting frame 4. The transverse guide sleeve 10 plays a role in guiding and supporting the limiting inclined column 5, when the lock shaft 2 has a trend of moving upwards in the axial direction, the limiting inclined column 5 is pushed by the round table part 21, so that the limiting inclined column 5 has a radial load, and at the moment, the transverse guide sleeve 10 plays a role in radially supporting the limiting inclined column 5, so that the limiting inclined column 5 is kept stable.

The bottom of the mounting frame 4 is fixed with a vertical guide sleeve 11, and the lower end of the lock shaft 2 is inserted into the vertical guide sleeve 11. The vertical guide sleeve 11 guides the lock shaft 2 at the lower part of the lock shaft 2, so that the lock shaft 2 keeps an upright posture, and the lock shaft 2 can rotate in the vertical guide sleeve 11, thereby facilitating the locking head 1 to lock or unlock the container; the lock shaft 2 can ascend from the inside of the vertical guide sleeve 11 and separate from the vertical guide sleeve 11 when the limiting inclined column 5 is far away from the round table part 21.

The upper end of the lock shaft 2 is provided with an expanding section 23, and the expanding section 23 is inserted into the lock seat 3. The lock seat 3 guides the lock shaft 2 at the upper part of the lock shaft 2, so that the lock shaft 2 keeps an upright posture, and the lock shaft 2 can rotate in the lock seat 3, thereby facilitating the locking head 1 to lock or unlock the container; the lock shaft 2 can be lifted from the lock base 3 and separated from the lock base 3 when the limit inclined column 5 is far away from the round table part 21.

The working principle of the rotating shaft device of the embodiment is as follows:

after the container is positioned on the frame, as shown in fig. 1, the rack 9 is driven to linearly move by a corresponding linear driving device 8, the gear part 22, the lock shaft 2 and the lock head 1 are driven to sequentially rotate by 90 degrees, and the lock head 1 locks the container on the semitrailer; the limiting inclined column 5 is driven to be close to the round platform part 21 by the other linear driving device 8, so that the inclined plane 51 is attached to the round platform part 21, the lock shaft 2 is limited to move upwards, the lock head 1 is fixed in position, and the container is fixed; when the lock head 1 needs to be unlocked, as shown in fig. 4, the rack 9 is driven to linearly move by the corresponding linear driving device 8, the gear part 22, the lock shaft 2 and the lock head 1 are driven to sequentially rotate 90 degrees, the lock head does not lock a container any more, and the container can be lifted by a crane at the moment;

the pressure sensor 6 is connected with a vehicle control system, the vehicle control system acquires the vehicle speed information of the container semi-trailer, judges whether the vehicle is in a running state or a static state, and judges whether the vehicle belongs to the condition of up-and-down shaking of the container caused by bumping of a road surface or the condition that the container is lifted by a crane when the container is locked by the lock head 1 by combining the pressure information detected by the pressure sensor 6, if the container is lifted by the lock head 1, the vehicle control system does not act, and if the container is lifted by the lock head 1, the vehicle control system controls the corresponding linear driving device 8 to drive the limiting inclined column 5 to be far away from the round table part 21; specifically, if the vehicle is in a running state according to the vehicle speed detected by the vehicle speed sensor when the pressure value detected by the pressure sensor 6 exceeds the preset value, the judgment that the pressure value detected by the pressure sensor 6 is too large is a normal phenomenon that the container shakes up and down due to bump on the road surface; if the vehicle speed detected by the vehicle speed sensor is 0, which indicates that the vehicle is in a parking state at the moment, the pressure sensor 6 detects that the crane is lifting the container, the driver forgets to control the linear driving device 8 to drive the lock head 1 to rotate so as to unlock the container, in order to avoid accidents, as shown in fig. 2, the electric control system automatically controls the linear driving device 8 corresponding to the limiting inclined column 5 to work, drives the push plate 7 to move, drives the limiting inclined column 5 to be far away from the round table part 21, and does not limit the round table part 21 any more, as shown in fig. 3, the lock shaft 2 is separated from the vehicle frame, and the principle of tail breaking of the gecko is adopted, so that the crane lifts the container, the lock head 1 and the lock shaft 2 together, and accidents that the vehicle frame lifts the vehicle frame together are avoided.

Examples

Referring to fig. 6 to 8, the present embodiment is substantially the same as embodiment 1, except that the linear driving device 8 is provided as one, the push plate 7 is mounted at the output end of the linear driving device 8, the pressure sensor 6 is mounted on the push plate 7, and the rack 9 is fixedly mounted on the push plate 7. The linear driving device 8 drives the pressure sensor 6 and the rack 9 to move synchronously and linearly through the push plate 7. The linear driving device 8 is a hydraulic cylinder, the hydraulic cylinder is connected with a vehicle-mounted hydraulic station, and the hydraulic cylinder can also be an air cylinder which is connected with a vehicle-mounted pneumatic system.

After the container is positioned on the frame, as shown in fig. 6, the push plate 7 is driven to move by the linear driving device 8, the push plate 7 drives the rack 9 and the limiting inclined column 5 to linearly move, the rack 9 drives the gear part 22, the lock shaft 2 and the lock head 1 to sequentially rotate for 90 degrees, and the lock head 1 locks the container on the semitrailer; after the lock head 1 rotates 90 degrees, the inclined surface 51 of the limiting inclined column 5 also moves to be attached to the round platform part 21, so that the lock shaft 2 is limited to move upwards, the position of the lock head 1 is fixed, and a container is fixed;

under the situation that a driver does not unlock the container, when the crane lifts the container, the electric control system automatically controls the linear driving device 8 to work to drive the push plate 7 to move to drive the limiting inclined column 5 to be far away from the round platform part 21, the round platform part 21 is not limited any more, at the moment, the lock shaft 2 is separated from the frame, and the crane lifts the container, the lock head 1 and the lock shaft 2 together like a gecko tail breaking principle, so that the accident that the crane lifts the frame together is avoided.

Compared with embodiment 1, embodiment 2 can realize the movement of the driving rack 9 and the limiting inclined column 5 by using one linear driving device 8, so that the structure is more compact and the cost is lower. However, due to the synchronous movement of the rack 9 and the limiting diagonal column 5 in embodiment 2, when the crane lifts the container, the lock head 1 and the lock shaft 2, a large pressure exists between the round table portion 21 and the limiting diagonal column 5, so that the friction force increases, and therefore the thrust force of the linear driving device 8 needs to overcome the friction force between the round table portion 21 and the limiting diagonal column 5 and the friction force at the joint of the lock head 1 and the container. In embodiment 1, the rack 9 and the limiting inclined column 5 are driven to move by using the two linear driving devices 8, and when the container, the lock head 1 and the lock shaft 2 are lifted by the crane, the limiting inclined column 5 is directly driven to be far away from the round platform part 21 by the linear driving devices 8 corresponding to the limiting inclined column 5, so that the lock shaft 2 can be smoothly separated, the situation of no larger friction force exists, and the lock is safer, therefore, the scheme of embodiment 1 is more preferable.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (9)

1. The utility model provides a lock device is changeed to container transportation semitrailer, includes tapered end (1) and lock axle (2), lock axle (2) top and tapered end (1) fixed connection, its characterized in that still includes lock seat (3), mounting bracket (4), spacing batter post (5), pressure sensor (6), push pedal (7), linear drive device (8) and rack (9), lock seat (3) fixed mounting is at mounting bracket (4) top, lock axle (2) cartridge in lock seat (3) and with lock seat (3) clearance fit, be equipped with round platform portion (21) and gear portion (22) on lock axle (2) coaxial, linear drive device (8) are installed on mounting bracket (4), and spacing batter post (5) are by linear drive device (8) drive along lock axle (2) radial rectilinear movement, and spacing batter post (5) front end have be used for with round platform portion (21) contact complex inclined plane (51), pressure sensor (6) are connected and are used for detecting between spacing batter post (5) and portion (21) pressure, and gear portion (22) are connected in perpendicular direction by linear drive device (8) along round platform (8) with linear drive device (2).

2. The rotary lock device of the container transportation semitrailer according to claim 1, wherein the limiting inclined column (5) is sleeved with a transverse guide sleeve (10) in a sliding manner, and the transverse guide sleeve (10) is fixedly connected with the mounting frame (4).

3. The rotary lock device of the container transportation semitrailer according to claim 1, wherein a vertical guide sleeve (11) is fixed at the bottom of the mounting frame (4), and the lower end of the lock shaft (2) is inserted into the vertical guide sleeve (11).

4. The rotary lock device of the container transportation semitrailer according to claim 1, wherein the upper end of the lock shaft (2) is provided with a diameter-enlarging section (23), and the diameter-enlarging section (23) is inserted in the lock seat (3).

5. The twist-lock device of a container transport semitrailer according to claim 4, characterized in that the axial projections of the gear part (22) and the circular truncated cone part (21) are both located within the axial projection of the expanded diameter section (23).

6. The rotary lock device of the container transportation semitrailer according to claim 1, wherein one end of the limiting inclined column (5) facing the pressure sensor (6) is provided with a flange part (52), and the flange part (52) is arranged at the detection end of the pressure sensor (6).

7. A twist-lock device for a container transport semitrailer according to claim 1, characterized in that the gear part (22) is located below the circular table part (21).

8. The rotary lock device of the container transportation semitrailer according to any one of claims 1 to 7, wherein the output end of the linear driving device (8) is provided with a push plate (7), the pressure sensor (6) is arranged on the push plate (7), and the rack (9) is fixedly arranged on the push plate (7).

9. The twist-lock device of a container transportation semitrailer according to any one of claims 1 to 7, characterized in that the number of the linear driving devices (8) is two, the push plates (7) are mounted at the output ends of the linear driving devices (8), the pressure sensor (6) is mounted on one of the push plates (7), and the rack (9) is fixedly mounted on the other push plate (7).