CN218367584U

CN218367584U - Container transport semi-trailer capable of automatically unlocking and locking

Info

Publication number: CN218367584U
Application number: CN202223061113.1U
Authority: CN
Inventors: 李景申; 李强申; 鲍国增; 李崇良
Original assignee: Handan Chaoyang Trailer Manufacturing Co ltd
Current assignee: Handan Chaoyang Trailer Manufacturing Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-01-24
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a but automatic latched container transport semitrailer of unblock, including frame, speed sensor and electrical system, install the twist lock mechanism that is used for fixed container on the front end crossbeam of frame and/or the rear end crossbeam, twist lock mechanism is including lock seat, tapered end, lock axle, spacing sleeve, roller gear, pressure sensor, pressure spring, rack and linear drive device, and linear drive device drives rack linear motion and rotates with the drive tapered end and switch unblock blocking state. The pressure sensor is arranged to detect pressure change of the pressure spring, the vehicle speed sensor is used for detecting vehicle speed, the pressure sensor detects pressure increase in the parking state, the fact that the container is being lifted by the crane is indicated, the electric control system automatically controls the linear driving device to work fast, the lock head is driven to rotate 90 degrees, the lock head is switched to the unlocking state, the locking hole of the container is not locked, the accident that the frame is lifted together is avoided, and safety is improved.

Description

Container transport semi-trailer capable of automatically unlocking and locking

Technical Field

The utility model relates to a container transport semitrailer technical field, especially a container transport semitrailer of automatic unblock shutting.

Background

With the development of the global logistics transportation industry, container transportation has become a main component of logistics transportation. In container road transportation, a container is generally placed on a container semi-trailer for transportation. The container and the container semi-trailer are fixedly connected by inserting a long-circular button lock on the semi-trailer into a long-circular locking hole at the bottom of a container bottom corner part, and then rotating 90 degrees, and the container is locked on the semi-trailer by the button lock.

The existing button lock operation of most container transport semitrailers needs manual button lock rotation, which is troublesome and labor-consuming and has low efficiency; in the process of vehicle running, the button lock is under the jolting and shaking of vehicle, has the risk of opening by oneself, and the container can fall during the transportation, takes place accident. Some novel automatic container semi-trailers have an automatic control function, for example, patent application No. CN201921091369.2 discloses a container semi-trailer button lock automatic control system and a container semi-trailer, wherein the automatic control system comprises a button lock, a linear driving device, a connecting part, a detection part, a prompt part and a power source part; the rotation of the button lock is automatically controlled by a pneumatic system; after the button lock is locked, the button lock is locked through the linear driving device, and the risk that the button lock is automatically opened under the bumping and shaking of a vehicle is avoided.

However, when the container needs to be unloaded, if the unlocking is forgotten, the vehicle body can be lifted together when the container is lifted away, so that an accident is caused, and certain potential safety hazards exist.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a container transport semi-trailer capable of automatically unlocking and locking.

In order to achieve the purpose, the utility model provides a but automatic unblock shutting's container transportation semitrailer, including frame, speed sensor and electrical system, install the twist lock mechanism that is used for fixed container on the front end crossbeam of frame and/or the rear end crossbeam, electrical system is connected with speed sensor and twist lock mechanism electricity, twist lock mechanism includes lock seat, tapered end, lock axle, spacing sleeve, cylindrical gear, pressure sensor, pressure spring, rack and linear drive device, lock seat, pressure sensor and linear drive device all fixed mounting are on the frame, and lock seat and pressure sensor are located respectively on frame upper and lower both ends face, lock axle top and tapered end fixed connection, lock axle movable mounting are in the lock seat, and spacing sleeve and cylindrical gear from top to bottom fix in proper order on the lock axle, and the pressure spring suit is on the lock axle, and the pressure spring upper end is connected with pressure sensor's detection end, and the pressure spring lower extreme is connected with spacing sleeve, has the buffering clearance between spacing sleeve and frame, and linear drive device output is connected with the rack and cylindrical gear engagement, and linear drive device drive gear rotation with the tapered end and switch the unblock linear motion state.

Preferably, the lock shaft is in clearance fit with the lock seat.

Preferably, the pressure sensor is an annular pressure sensor, and the lock shaft penetrates through an annular cavity in the middle of the pressure sensor.

Preferably, the length of the long edge of the lock head is greater than that of the long edge of the lock seat, and when the lock head is in a locked state, the distance between the far end of the lock head and the lock seat is 2-5 cm.

Preferably, the width of the cylindrical gear is larger than that of the rack.

Preferably, the linear driving device is an air cylinder, the linear driving device is communicated with the vehicle-mounted air cylinder through an air channel pipeline, and an electromagnetic valve is mounted on the air channel pipeline and electrically connected with the electric control system.

Preferably, a sliding groove is fixed on the frame, and the rack is slidably mounted in the sliding groove.

The beneficial effect of this technical scheme: the pressure sensor is arranged to detect pressure change of the pressure spring, when the container ascends relative to the frame, the container drives the lock head to ascend relative to the lock seat through the lock hole, the pressure detected by the pressure sensor is increased, the vehicle speed sensor detects the vehicle speed at the moment, the electric control system judges whether the vehicle is in a running state or not, and if the vehicle is in the running state, the normal phenomenon is generated; if the vehicle speed is 0, the vehicle is in a parking state, the pressure sensor detects that the pressure is increased, the pressure sensor indicates that the crane lifts the container, the electric control system automatically controls the linear driving device to work quickly, the lock head is driven to rotate 90 degrees, the lock head is switched to an unlocking state, the locking hole of the container is not locked, the accident that the vehicle frame is lifted together is avoided, and the safety is improved.

Drawings

Fig. 1 is a top view of an embodiment of the present invention;

fig. 2 is a schematic structural view of the twist lock mechanism (locked state);

FIG. 3 is a state diagram of the twist lock mechanism as the lock head moves relative to the lock housing;

FIG. 4 is a state diagram of the twist-lock mechanism in an unlocked state;

fig. 5 is a circuit block diagram of an embodiment of the present invention;

in the figure, 1, a vehicle frame; 2. a vehicle speed sensor; 3. an electronic control system; 4. a twist lock mechanism; 41. a lock base; 42. a lock head; 43. a lock shaft; 44. a limiting sleeve; 45. a cylindrical gear; 46. a pressure sensor; 47. compressing the spring; 48. a rack; 49. a linear drive device; 410. a buffer gap; 411. a gas path pipeline; 412. an electromagnetic valve.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the application provides a container transportation semi-trailer capable of automatically unlocking and locking, including a frame 1, a vehicle speed sensor 2 and an electric control system 3, wherein a front end cross beam and a rear end cross beam of the frame 1 are provided with a twist lock mechanism 4 for fixing a container, the electric control system 3 is electrically connected with the vehicle speed sensor 2 and the twist lock mechanism 4, and the above descriptions are all in the prior art; in the embodiment, the number of the rotary locking mechanisms 4 on the front end beam and the rear end beam of the frame 1 is two, so that locking holes at four corners of the bottom of the container can be conveniently fixed; the twist lock mechanism 4 comprises a lock seat 401, a lock head 402, a lock shaft 403, a limiting sleeve 404, a cylindrical gear 405, a pressure sensor 406, a pressure spring 407, a rack 408 and a linear driving device 409, wherein the lock seat 401, the pressure sensor 406 and the linear driving device 409 are all fixedly mounted on the frame 1, the lock seat 401 and the pressure sensor 406 are respectively located on the upper end face and the lower end face of the frame 1, the top of the lock shaft 403 is fixedly connected with the lock head 402, the lock shaft 403 is movably mounted in the lock seat 401, the limiting sleeve 404 and the cylindrical gear 405 are sequentially fixed on the lock shaft 403 from top to bottom, the pressure spring 407 is sleeved on the lock shaft 403, the upper end of the pressure spring 407 is connected with the detection end of the pressure sensor 406, the lower end of the pressure spring 407 is connected with the limiting sleeve 404, a buffer gap 410 is formed between the limiting sleeve 404 and the frame 1, the output end of the linear driving device 409 is connected with the rack 408, the rack 408 is connected with the cylindrical gear 405 in a meshed manner, and the linear driving device 409 drives the rack 408 to drive the lock head 402 to rotate to switch an unlocking state. The pressure sensor 406 can detect pressure change of the pressure spring 407, when the container rises relative to the frame 1, the container drives the lock head 402 to rise relative to the lock seat 401 through the locking hole, the lock shaft 403 can drive the limiting sleeve 404 to rise, so that the distance between the limiting sleeve 404 and the pressure sensor 406 is reduced, the pressure spring 407 is compressed, the pressure detected by the pressure sensor 406 is increased, the vehicle speed can be detected by the vehicle speed sensor 2, the electric control system 3 can conveniently judge whether the container is in a running state, and if the container is in the running state, the pressure detected by the pressure sensor 406 is convenient to be a normal phenomenon that the container shakes up and down due to road bumping; if the vehicle speed is 0, the parking state is shown at this moment, the pressure sensor 406 detects that the pressure is increased, that is, the container is being hoisted by the crane, and in order to avoid accidents, the electric control system 3 judges that the rotary locking mechanism 4 is not unlocked by mistake at this moment, the electric control system 3 automatically controls the linear driving device 409 to work quickly, drives the rack 408 to move, the rack 408 drives the gear, the locking shaft 403 and the locking head 402 to rotate for 90 degrees, and before the limiting sleeve 404 is contacted with the vehicle frame 1, the locking head 402 is switched to the unlocking state, the locking hole of the container is not locked, and the accidents that the vehicle frame 1 is hoisted together are avoided.

In order to facilitate the movable installation of the lock shaft 403 in the lock holder 401, and enable the lock shaft 403 to rotate and lift in the lock holder 401, and the range of the axial position variation is as small as possible, so that the rack and pinion 408 is always engaged, the lock shaft 403 and the lock holder 401 are arranged in a clearance fit.

In order to facilitate the connection of the pressure sensor 406 with the pressure spring 407 and the passing of the lock shaft 403, the pressure sensor 406 is configured as a ring-shaped pressure sensor 406, and the lock shaft 403 passes through a ring cavity in the middle of the pressure sensor 406.

In order to be convenient for the container to be locked by switching from an unlocking state to a locking state after the lock head 402 rotates 90 degrees, the length of the long edge of the lock head 402 is set to be larger than that of the lock seat 401, when the lock head 402 is in the locking state, the distance between the far end of the lock head 402 and the lock seat 401 is 2-5cm, and the locking hole of the container can be locked through the protruding part of 2-5cm.

In order to enable the cylindrical gear 405 to be always meshed with the rack 408 and not to be separated from the rack 408 when the lock shaft 403 is lifted, the width of the cylindrical gear 405 is larger than that of the rack 408.

In order to facilitate the electric control system 3 to automatically control the linear driving device 409 to work, the linear driving device 409 is set as an air cylinder, the linear driving device 409 is communicated with the vehicle-mounted air cylinder through an air channel pipe 411, an electromagnetic valve 412 is installed on the air channel pipe 411, and the electromagnetic valve 412 is electrically connected with the electric control system 3. The electric control system 3 controls the electromagnetic valve 412 to work, so that the air cylinder is ventilated, and the rack 408 and the gear are driven to move. In other embodiments, the linear driving device 409 may also be configured as an electric push rod, the electric push rod reacts faster, and a hydraulic cylinder with larger thrust may also be used.

In order to enable the linear driving device 409 to drive the rack 408 to move smoothly and linearly, a sliding groove 413 is fixed on the frame 1, and the rack 408 is slidably mounted in the sliding groove 413.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Claims

1. A container transportation semi-trailer capable of automatically unlocking and locking comprises a frame (1), a vehicle speed sensor (2) and an electric control system (3), wherein a rotary locking mechanism (4) for fixing a container is mounted on a front end beam and/or a rear end beam of the frame (1), the electric control system (3) is electrically connected with the vehicle speed sensor (2) and the rotary locking mechanism (4), the semi-trailer is characterized in that the rotary locking mechanism (4) comprises a lock seat (401), a lock head (402), a lock shaft (403), a limiting sleeve (404), a cylindrical gear (405), a pressure sensor (406), a pressure spring (407), a rack (408) and a linear driving device (409), the lock seat (401), the pressure sensor (406) and the linear driving device (409) are fixedly mounted on the frame (1), the lock seat (401) and the pressure sensor (406) are respectively located on the upper end surface and the lower end surface of the frame (1), the top of the lock shaft (403) is fixedly connected with the lock head (402), the lock shaft (403) is movably mounted in the lock seat (401), the limiting sleeve (404) and the gear (403) are sequentially fixed on the upper end of the lock shaft (407) and the lower end (407) of the pressure sensor (407) and the pressure sensor (407) is connected with the lower end of the pressure spring (407), a buffer gap (410) is formed between the limiting sleeve (404) and the frame (1), the output end of the linear driving device (409) is connected with the rack (408), the rack (408) is meshed with the cylindrical gear (405), and the linear driving device (409) drives the rack (408) to move linearly so as to drive the lock head (402) to rotate to switch an unlocking and locking state.

2. The automatically unlockable and lockable container transport semitrailer according to claim 1, characterized in that the lock shaft (403) is in clearance fit with the lock seat (401).

3. The container transport semitrailer capable of automatically unlocking and locking according to claim 1, characterized in that the pressure sensor (406) is a ring-shaped pressure sensor (406), and the lock shaft (403) penetrates through a ring cavity in the middle of the pressure sensor (406).

4. The container transportation semitrailer capable of automatically unlocking and locking according to claim 1, characterized in that the length of the long side of the locking head (402) is greater than that of the long side of the lock seat (401), and when the locking head (402) is in the locking state, the distance between the far end of the locking head (402) and the lock seat (401) is 2 to 5cm.

5. The automatically unlockable container transport semitrailer of claim 1, characterized in that the width of the cylindrical gear (405) is greater than the width of the gear rack (408).

6. The container transportation semitrailer capable of automatically unlocking and locking according to claim 1, characterized in that the linear driving device (409) is an air cylinder, the linear driving device (409) is communicated with an on-vehicle air storage cylinder through an air channel pipeline (411), an electromagnetic valve (412) is installed on the air channel pipeline (411), and the electromagnetic valve (412) is electrically connected with the electric control system (3).

7. The container transport semitrailer capable of automatically unlocking and locking according to claim 1, characterized in that a sliding groove (413) is fixed on the frame (1), and the rack (408) is slidably installed in the sliding groove (413).