Length-adjusting lock shaft device suitable for semitrailer

Abstract

The utility model relates to the technical field of automobile equipment, in particular to a length-adjusting lock shaft device suitable for a semitrailer, which comprises a frame girder, a positioning hole is arranged on the frame girder, a lock pin is arranged in the positioning hole, one end of the lock pin is connected with a driving source, an output end of the driving source is provided with a telescopic rod connected with the lock pin, and a warning device is mounted on the telescopic rod. A mounting seat used for mounting a driving source is arranged on the side wall of the frame girder, the driving source is used for driving the lock pin to move, then the frame girder with the sleeved length is locked, the stability of the whole frame after the length is adjusted is guaranteed, meanwhile, the warning device can be driven to move in the moving process of the lock pin, and the warning effect is improved. If a driver can see the warning device in the rearview mirror, it is indicated that the lock pin does not stretch into the positioning hole, a warning effect can be achieved through the warning device, and safety accidents caused by the fact that the frame is not locked after the length of the frame is adjusted are avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive equipment technology, specifically to an adjustable axle locking device suitable for semi-trailers. Background Technology

[0002] In the modern logistics and transportation sector, semi-trailers have become a key tool for long-distance freight transport due to their excellent carrying capacity and flexibility. With the increasing diversification of transportation demands, the length of semi-trailers often needs to be adjusted according to the size and weight of different goods and transportation regulations.

[0003] Traditional semi-trailers present numerous inconveniences in terms of vehicle length adjustment. Firstly, the lack of effective warning devices to inform the driver that adjustment is complete after adjustment can easily lead to the driver starting the vehicle without confirming the adjustment status, causing safety hazards such as potential damage to vehicle components or even endangering road traffic safety. Secondly, locking operations typically require manual intervention by an operator beside the vehicle. In complex or hazardous operating environments, such as busy ports or construction sites, this exposes operators to potential dangers, making them highly susceptible to injury from collisions with passing vehicles or other accidents, seriously threatening their personal safety. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides an adjustable axle locking device suitable for semi-trailers. Through the design of a warning device, the driver is alerted after the vehicle length adjustment is completed. Furthermore, the installation of a drive source enables remote locking operations, ensuring the personal safety of the operator.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: an adjustable axle locking device suitable for semi-trailers, including a frame beam, a positioning hole provided on the frame beam, a locking pin provided in the positioning hole, a drive source provided at one end of the locking pin, a telescopic rod connected to the locking pin provided at the output end of the drive source, a warning device provided on the telescopic rod, and a mounting base for installing the drive source provided on the side wall of the frame beam.

[0006] As a further improvement to the above technical solution:

[0007] The mounting base includes a guide sleeve fitted outside the locking pin. One end of the guide sleeve is provided with a reinforcing plate that is connected to the frame beam, and the other end is provided with a bracket that is connected to the drive source.

[0008] The bracket includes two vertical plates located on the two side walls of the guide sleeve, and a horizontal plate is provided at the end of the vertical plate. The output end of the drive source is provided with a liner connected to the horizontal plate.

[0009] A gap is provided between the two vertical plates for the telescopic rod to move.

[0010] The warning device includes a warning plate, one end of which is connected to a telescopic rod, and the other end is equipped with a warning sign.

[0011] The telescopic rod is provided with a transition plate that connects to the warning plate. The lower end of the transition plate is provided with a boss that connects to the warning plate. Guide plates that fit against the inner side of the mounting base are provided on both sides of the transition plate.

[0012] The beneficial effects of this utility model embodiment are as follows: The length-adjusting locking device for semi-trailers includes a frame beam with a positioning hole on the frame beam. A locking pin is provided in the positioning hole. One end of the locking pin is connected to a drive source. The output end of the drive source is provided with a telescopic rod connected to the locking pin. A warning device is installed on the telescopic rod. A mounting seat for installing the drive source is provided on the side wall of the frame beam. The drive source drives the locking pin to move, thereby locking the frame beam after length adjustment and enabling remote operation. At the same time, the locking pin can drive the warning device to move during its movement. If the driver can see the warning device in the rearview mirror, it indicates that the locking pin has not been inserted into the positioning hole. The warning device can serve as a warning to prevent the frame from being locked after length adjustment and causing safety accidents.

[0013] Using an air chamber as a drive source allows for connection to the vehicle's existing air supply, saving on the manufacturing cost of the entire locking device and simplifying the installation process. Moreover, the cost of an air chamber is lower than that of a motor, and its stability is better. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the drive source in this utility model;

[0016] Figure 3 This is a schematic diagram of the driving source in this utility model;

[0017] Figure 4 This is a schematic diagram of the mounting base in this utility model;

[0018] Figure 5 This is a side view of the mounting base in this utility model.

[0019] In the diagram: 1. Chassis beam; 2. Positioning hole; 3. Locking pin; 4. Drive source; 5. Telescopic rod; 6. Warning device; 7. Mounting base; 8. Guide sleeve; 9. Reinforcing plate; 10. Bracket; 11. Vertical plate; 12. Horizontal plate; 13. Liner plate; 14. Gap; 15. Warning plate; 16. Warning sign; 17. Adapter plate; 18. Boss; 19. Guide plate. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] like Figure 1 As shown, the length-adjusting locking device for semi-trailers in this embodiment includes a frame beam 1, a positioning hole 2 on the frame beam 1, a locking pin 3 inside the positioning hole 2, a drive source 4 connected to one end of the locking pin 3, a telescopic rod 5 connected to the output end of the drive source 4, a warning device 6 installed on the telescopic rod 5, and a mounting seat 7 for mounting the drive source 4 on the side wall of the frame beam 1. The drive source 4 drives the locking pin 3 to move, thereby locking the frame beam 1 after the length is adjusted, ensuring the stability of the overall frame after the length adjustment. At the same time, the movement of the locking pin 3 can drive the warning device 6 to move. If the driver can see the warning device in the rearview mirror, it indicates that the locking pin 3 has not been inserted into the positioning hole 2. The warning device 6 can serve as a warning to prevent the frame from being locked after the length adjustment and causing a safety accident.

[0022] The drive source 4 uses an air chamber and is connected to the existing air source on the vehicle, which can save the cost of equipment installation and use. There are two locking pins 3, which are located on both sides of the frame beam 1. Each locking pin 3 is driven by a separate air chamber. The frame beam 1 includes a main beam and a movable beam. The main beam has positioning holes, and the movable beam has multiple insertion holes distributed along the length direction corresponding to the positions of the positioning holes.

[0023] like Figure 2 As shown, the mounting base 7 includes a guide sleeve 8 sleeved outside the locking pin 3. One end of the guide sleeve 8 is provided with a reinforcing plate 9 connected to the frame beam 1, and the other end is provided with a bracket 10 connected to the drive source 4. The reinforcing plate 9 has through holes distributed coaxially with the positioning holes 2. The connection strength at the opening position of the frame beam 1 can be strengthened by the reinforcing plate 9. The design of the bracket 10 can ensure that the telescopic rod 5, the locking pin 3 and the positioning holes 2 are coaxially distributed, thus improving the working accuracy.

[0024] like Figure 4-5 As shown, the bracket 10 includes two vertical plates 11 located on the two side walls of the guide sleeve 8 respectively. A horizontal plate 12 is provided at the end of the vertical plate 11. A liner 13 connected to the horizontal plate 12 is provided at the output end of the drive source 4. A gap 14 is reserved between the two vertical plates 11 for the telescopic rod 5 to move. The design of the liner 13 enables the drive source 4 to be quickly disassembled and assembled, avoiding the problem of difficulty in disassembly and assembly when the drive source 4 is directly connected to the bracket 10.

[0025] like Figure 3 As shown, the warning device 6 includes a warning plate 15. One end of the warning plate 15 is connected to the telescopic rod 5, and the other end is provided with a warning sign 16. The warning plate 15 moves with the telescopic rod 5. When the frame beam 1 is locked, the end of the warning plate 15 is located inside the frame, and the driver cannot see the warning sign 16 in the rearview mirror. When the vehicle is unlocked, the warning sign 16 is located on the outside of the entire vehicle, and the driver can see it in the rearview mirror.

[0026] The telescopic rod 5 is provided with a transition plate 17 that is connected to the warning plate 15. The lower end of the transition plate 17 is provided with a boss 18 that is connected to the warning plate 15. The two sides of the transition plate 17 are provided with guide plates 19 that fit against the inner side of the mounting base 7. The design of the guide plates 19 can guide the transition plate 17 when it slides, ensuring the stability of the movement of the warning plate 17.

[0027] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0030] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An adjustable axle locking device suitable for semi-trailers, characterized in that: The vehicle includes a frame beam (1), on which a positioning hole (2) is provided, and a locking pin (3) is provided in the positioning hole (2). A drive source (4) is provided at one end of the locking pin (3), and a telescopic rod (5) connected to the locking pin (3) is provided at the output end of the drive source (4). A warning device (6) is provided on the telescopic rod (5), and a mounting seat (7) for installing the drive source (4) is provided on the side wall of the frame beam (1).

2. The length-adjusting axle locking device for semi-trailers according to claim 1, characterized in that: The mounting base (7) includes a guide sleeve (8) sleeved outside the locking pin (3). One end of the guide sleeve (8) is provided with a reinforcing plate (9) connected to the frame beam (1), and the other end is provided with a bracket (10) connected to the drive source (4).

3. The length-adjusting axle locking device for semi-trailers according to claim 2, characterized in that: The bracket (10) includes two vertical plates (11) located on the two side walls of the guide sleeve (8), and a horizontal plate (12) is provided at the end of the vertical plate (11). The output end of the drive source (4) is provided with a liner (13) connected to the horizontal plate (12).

4. The length-adjusting axle locking device for semi-trailers according to claim 3, characterized in that: A gap (14) is reserved between the two vertical plates (11) for the telescopic rod (5) to move.

5. The length-adjusting axle locking device for semi-trailers according to claim 1, characterized in that: The warning device (6) includes a warning plate (15), one end of which is connected to the telescopic rod (5), and the other end is provided with a warning sign (16).

6. The length-adjusting axle locking device for semi-trailers according to claim 5, characterized in that: The telescopic rod (5) is provided with a transition plate (17) connected to the warning plate (15). The lower end of the transition plate (17) is provided with a boss (18) connected to the warning plate (15). The two sides of the transition plate (17) are provided with guide plates (19) that fit against the inner side of the mounting base (7).

Images