Anti-rolling semitrailer supporting device

Abstract

The utility model relates to the technical field of semitrailers, and discloses an anti-rolling semitrailer supporting device which comprises a supporting connecting plate, guide supporting seats, bottom supporting seats and a buffering supporting table, the bottom of the supporting connecting plate is rotatably connected with the guide supporting seats distributed at equal intervals, the inner sides of the guide supporting seats are slidably connected with the bottom supporting seats, and the buffering supporting table is connected with the bottom supporting seats. Buffering supporting tables distributed at equal intervals are fixedly connected to the bottom face of the bottom supporting base. The rotary contraction assembly is arranged between the supporting connecting plate and the guide supporting seat; the reset supporting assembly is arranged between the guide supporting seat and the bottom supporting seat; a stable supporting structure is formed through cooperation of all the assemblies, the bottom supporting base is stored in cooperation with the rotating and contracting assembly, resetting is conducted through the resetting supporting assembly, the lifting driving assembly automatically and synchronously ascends and descends, the structure is simple, the cost is low, and meanwhile the transportation safety efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, specifically to an anti-roll semi-trailer support device. Background Technology

[0002] With the rapid development of the logistics and transportation industry, semi-trailers have become an important part of cargo transportation due to their strong carrying capacity. As a key component for coupling and separating semi-trailers from tractors, the performance of semi-trailer support devices directly affects transportation safety and efficiency.

[0003] Currently, traditional semi-trailer support devices have many problems that urgently need to be solved. When the trailer is empty, after the cab separates from the trailer body, the center of gravity of the trailer itself is unstable, making it prone to tilting and rollover accidents. Existing support devices are mostly fixed to the bottom of the trailer and cannot be retracted, which not only affects the driving of the vehicle, but also makes the support center of gravity unstable and the support effect poor. In terms of operation, most support devices rely on manual cranking to control the raising and lowering, which is not only time-consuming and labor-intensive, but also makes it difficult to ensure that the two sides raise and lower at the same time. When the force on the two sides is uneven or the height is different, it is easy to cause the rollover, which poses a serious safety hazard. In addition, the existing support devices have a complex structure and require extremely high manufacturing precision, which increases the production cost. Moreover, the components are relatively fragile and are easily damaged in complex transportation environments, resulting in poor practicality. To address these issues, we propose an anti-roll semi-trailer support device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-roll semi-trailer support device, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A roll-resistant semi-trailer support device includes: a support connecting plate, a guide support seat, a bottom support seat, and a buffer support platform. The bottom of the support connecting plate is rotatably connected to guide support seats that are evenly distributed. The inner side of the guide support seats is slidably connected to the bottom support seats. The bottom surface of the bottom support seats is fixedly connected to buffer support platforms that are evenly distributed.

[0007] A rotating retractable assembly is disposed between the support connecting plate and the guide support seat, the retractable assembly being used to retract and store the bottom support seat;

[0008] A reset support assembly is provided between a guide support seat and a bottom support seat. The guide support seat has an internal groove on its inner side, and the bottom support seat is slidably connected to the inner side of the internal groove. The reset support assembly is provided on the inner side of the internal groove.

[0009] A lifting drive assembly is provided on the side of the support connecting plate. The top side of the support connecting plate has equally spaced mounting slots, and the lifting drive assembly is provided inside the mounting slots.

[0010] Preferably, the top side of the support connecting plate is fixedly connected with equidistantly distributed motor mounting bosses, the bottom surface of the support connecting plate is fixedly connected with equidistantly distributed rotating support platforms, and the side of the rotating support platform is provided with a rotating support hole.

[0011] Preferably, the rotating retractable assembly includes a guide support seat and a rotating retractable motor. The rotating retractable motor is fixedly connected to the bottom surface of the motor mounting boss, a rotating boss is fixedly connected to the top side of the guide support seat, a rotating boss is rotatably connected to the inner side of the rotating support hole on the side of the rotating support seat, and a rotating boss is fixedly connected to the output shaft of the rotating retractable motor.

[0012] Preferably, the bottom of the guide support is provided with an internal sliding groove, and the outer side of the guide support is provided with a guide groove, the inside of which is connected to the internal sliding groove.

[0013] Preferably, the reset support assembly includes a side support platform, a bottom support seat, and a connecting reset spring. The connecting reset spring is fixedly connected to the inner side of the internal slide groove, and the bottom support seat is fixedly connected to the bottom surface of the connecting reset spring. The bottom support seat is slidably connected to the inner side of the internal slide groove, and the side support platform is fixedly connected to the side of the bottom support seat. The side support platform is slidably connected to the inner side of the guide groove.

[0014] Preferably, the lifting drive assembly includes a lifting drive hydraulic cylinder, a lifting hydraulic rod, and a guide fixing platform. The lifting drive hydraulic cylinder is fixedly connected to the inner side of the mounting groove, the lifting hydraulic rod is slidably connected to the inner side of the lifting drive hydraulic cylinder, the guide fixing platform is fixedly connected to the bottom surface of the lifting hydraulic rod, and a side support platform is slidably connected to the bottom of the guide fixing platform.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] A roll-resistant semi-trailer support device is provided, which has the following advantages:

[0017] This utility model uses a combination of a support connecting plate, a guide support seat, a bottom support seat, and a buffer support platform to form a stable support structure. With the help of a rotating retraction component, the bottom support seat can be retracted during driving to avoid affecting the vehicle's movement. The retraction is achieved by using a resetting spring connected to the resetting support component, and the hydraulic cylinder of the lifting drive component enables automated synchronous lifting to reduce labor intensity and the risk of tipping over. At the same time, the structure is simple and the manufacturing precision requirements are moderate. Thus, the buffer support platform can buffer impacts, reduce production costs and damage in complex transportation environments, and effectively solve the problems of traditional devices such as easy rollover, inability to retract, inconvenient operation, high cost and easy damage, thereby improving transportation safety and efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the overall structure of this utility model disassembled;

[0020] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0022] In the diagram: 1. Support connecting plate; 2. Motor mounting boss; 3. Lifting drive hydraulic cylinder; 4. Lifting hydraulic rod; 5. Guide fixing platform; 6. Side support platform; 7. Guide support seat; 8. Bottom support seat; 9. Buffer support platform; 10. Rotating retracting motor; 11. Mounting groove; 12. Rotating support platform; 13. Guide groove; 14. Connecting return spring; 15. Rotating boss; 16. Internal slide groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A roll cage semi-trailer support device, comprising:

[0026] Support connecting plate 1, guide support seat 7, bottom support seat 8, buffer support platform 9. The bottom of the support connecting plate 1 is rotatably connected to the guide support seat 7, the inner side of the guide support seat 7 is slidably connected to the bottom support seat 8, and the bottom surface of the bottom support seat 8 is fixedly connected to the buffer support platform 9, which is distributed at equal intervals.

[0027] A rotating retractable assembly is provided between the support connecting plate 1 and the guide support seat 7. The retractable assembly is used to retract and store the bottom support seat 8.

[0028] A reset support assembly is provided between the guide support 7 and the bottom support 8. The guide support 7 has an inner groove 16, the bottom support 8 is slidably connected to the inner side of the inner groove 16, and the reset support assembly is provided on the inner side of the inner groove 16.

[0029] A lifting drive assembly is provided on the side of the support connecting plate 1. The top side of the support connecting plate 1 has equally spaced mounting slots 11, and the lifting drive assembly is provided on the inner side of the mounting slots 11.

[0030] Furthermore, the top side of the support connecting plate 1 is fixedly connected with equidistantly distributed motor mounting bosses 2, and the bottom surface of the support connecting plate 1 is fixedly connected with equidistantly distributed rotating support platforms 12, and the side of the rotating support platform 12 is provided with rotating support holes.

[0031] Furthermore, the rotating shrink assembly includes a guide support 7 and a rotating shrink motor 10. The rotating shrink motor 10 is fixedly connected to the bottom surface of the motor mounting boss 2. A rotating boss 15 is fixedly connected to the top side of the guide support 7. A rotating boss 15 is rotatably connected to the inner side of the rotating support hole on the side of the rotating support platform 12. The output shaft of the rotating shrink motor 10 is fixedly connected to the rotating boss 15. Through the action of the rotating shrink assembly, the bottom support 8 can be rotated and shrunk.

[0032] Furthermore, the bottom of the guide support 7 is provided with an internal sliding groove 16, and the outer side of the guide support 7 is provided with a guide groove 13, the inside of which is connected to the internal sliding groove 16.

[0033] Furthermore, the reset support assembly includes a side support platform 6, a bottom support seat 8, and a connecting reset spring 14. The connecting reset spring 14 is fixedly connected to the inner side of the inner slide groove 16, and the bottom support seat 8 is fixedly connected to the bottom surface of the connecting reset spring 14. The bottom support seat 8 is slidably connected to the inner side of the inner slide groove 16, and the side support platform 6 is fixedly connected to the side of the bottom support seat 8. The side support platform 6 is slidably connected to the inner side of the guide groove 13. Through the action of the reset support assembly, the bottom support seat 8 is reset and retracted.

[0034] Furthermore, the lifting drive assembly includes a lifting drive hydraulic cylinder 3, a lifting hydraulic rod 4, and a guide fixing platform 5. The lifting drive hydraulic cylinder 3 is fixedly connected to the inner side of the mounting groove 11, the lifting hydraulic rod 4 is slidably connected to the inner side of the lifting drive hydraulic cylinder 3, the guide fixing platform 5 is fixedly connected to the bottom surface of the lifting hydraulic rod 4, and the side support platform 6 is slidably connected to the bottom of the guide fixing platform 5. Through the action of the lifting drive assembly, the bottom support seat 8 can be adjusted and supported by lifting.

[0035] Structural Description:

[0036] Support connecting plate 1: The top side is fixed with motor mounting bosses 2 that are evenly distributed, and the bottom surface is fixed with rotating support platforms 12 that are evenly distributed. The rotating support platform 12 has rotating support holes on its side for connecting the rotating retraction assembly and supporting other structures.

[0037] Guide support seat 7: The bottom has an internal sliding groove 16, the outer side has a guide groove 13 that connects to the internal sliding groove 16, the top side has a rotating boss 15 fixed, the rotating boss 15 is rotatably connected to the rotating support table 12, and the inner side is slidably connected to the bottom support seat 8.

[0038] Bottom support seat 8: The bottom surface is fixed with buffer support platforms 9 distributed at equal intervals, and the side support platform 6 is fixed on the side. It can slide in the internal slide groove 16 of the guide support seat 7. The side support platform 6 cooperates with the guide groove 13 and the lifting drive assembly.

[0039] Buffer support platform 9: Fixed to the bottom surface of the bottom support 8, used to buffer the impact force when the vehicle is supported;

[0040] Motor mounting boss 2: fixed to the top side of the support connecting plate 1, used to install the rotary retractable motor 10;

[0041] Rotary support platform 12: fixed to the bottom surface of the support connecting plate 1, with a rotating support hole on the side for rotating connection with the rotating boss 15 of the guide support seat 7.

[0042] Internal groove 16: Located inside the guide support 7, used for sliding of the bottom support 8, and a reset support assembly is provided on the inner side;

[0043] Guide groove 13: Located on the outside of guide support seat 7, it connects to the internal slide groove 16 and is used for sliding of side support platform 6;

[0044] Mounting slot 11: is located on the top side of the support connecting plate 1 and is used to mount the lifting drive assembly;

[0045] Rotary retraction motor 10: Fixed to the bottom surface of motor mounting boss 2, it drives the rotating boss 15 to rotate through the output shaft, providing power for the retraction and storage of the bottom support 8;

[0046] Rotating boss 15: Fixed to the top side of the guide support seat 7, its outer side is rotatably connected to the rotating support hole of the rotating support table 12, and its inner side is fixed to the output shaft of the rotating retraction motor 10. It is used to transmit rotational power and drive the guide support seat 7 to rotate around the rotating support table 12.

[0047] Motor mounting boss 2: Fixed to the top side of the support connecting plate 1, providing an installation position for the rotating retractable motor 10;

[0048] Connection reset spring 14: fixed inside the inner side of the slide groove 16 inside the guide support seat 7, and the bottom surface is fixed to the bottom support seat 8. When the bottom support seat 8 is subjected to external force, it is displaced and the spring is compressed or stretched. After the external force disappears, the bottom support seat 8 is reset by elastic force.

[0049] Side support platform 6: Fixed to the side of the bottom support 8, the outer side slides in the guide groove 13 of the guide support 7, and the inner side slides in connection with the bottom of the guide fixing platform 5 of the lifting drive assembly. It is used to transmit the displacement of the bottom support 8 and slides along the guide groove 13 during the reset process to ensure the stability of the reset.

[0050] Lifting drive hydraulic cylinder 3: fixed inside the mounting groove 11 on the top side of the support connecting plate 1, and controls the extension and retraction of the lifting hydraulic rod 4 through the hydraulic system to provide power for the lifting of the bottom support seat 8;

[0051] Lifting hydraulic rod 4: It is slidably connected to the inner side of the lifting drive hydraulic cylinder 3, and its bottom surface is fixed to the guide fixed platform 5. It achieves extension and retraction through the hydraulic power of the hydraulic cylinder, drives the guide fixed platform 5 to move up and down, and then drives the bottom support seat 8 to lift.

[0052] Guide fixing platform 5: The bottom surface is fixed to the lifting hydraulic rod 4, and the bottom is slidably connected to the side support platform 6. It is used to transmit the displacement of the lifting hydraulic rod 4. Through the sliding cooperation with the side support platform 6, it drives the bottom support seat 8 to rise and fall synchronously in the internal slide groove 16.

[0053] Working principle: When this utility model is used, the guide support seat 7, bottom support seat 8 and buffer support platform 9 at the bottom of the support connecting plate 1 form a stable support structure, which increases the contact area with the ground and lowers the center of gravity of the semi-trailer. At the same time, the reset spring 14 provides a reset force to maintain the stability of the support. The rotating retraction motor 10 drives the rotating boss 15 to rotate, which drives the guide support seat 7 to rotate around the rotating support platform 12 to house the bottom support seat 8. The lifting drive hydraulic cylinder 3 pushes the lifting hydraulic rod 4 to extend and retract. Through the guide fixing platform 5 and the side support platform 6, the bottom support seat 8 slides in the internal slide groove 16 to realize automatic synchronous lifting. The buffer support platform 9 buffers the impact. When the external force disappears, the reset spring 14 drives the bottom support seat 8 to reset, and the side support platform 6 slides in the guide groove 13.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll cage semi-trailer support device, characterized in that it comprises: Support connecting plate (1), guide support seat (7), bottom support seat (8), buffer support platform (9). The bottom of the support connecting plate (1) is rotatably connected to the guide support seat (7) at equal intervals. The inner side of the guide support seat (7) is slidably connected to the bottom support seat (8). The bottom surface of the bottom support seat (8) is fixedly connected to the buffer support platform (9) at equal intervals. A rotating retractable assembly is provided between the support connecting plate (1) and the guide support seat (7), the retractable assembly being used to retract and store the bottom support seat (8); A reset support assembly is provided between the guide support seat (7) and the bottom support seat (8). The guide support seat (7) has an inner groove (16) on its inner side. The bottom support seat (8) is slidably connected to the inner side of the inner groove (16). The reset support assembly is provided on the inner side of the inner groove (16). A lifting drive assembly is provided on the side of the support connecting plate (1). The top side of the support connecting plate (1) is provided with equally spaced mounting slots (11), and the lifting drive assembly is provided on the inner side of the mounting slots (11).

2. A roll-prevention type semi-trailer support device according to claim 1, characterized in that; The top side of the support connecting plate (1) is fixedly connected with motor mounting bosses (2) that are evenly distributed, and the bottom surface of the support connecting plate (1) is fixedly connected with rotating support platforms (12) that are evenly distributed. The rotating support platforms (12) have rotating support holes on their sides.

3. A roll-prevention type semi-trailer support device according to claim 2, characterized in that; The rotating retractable assembly includes a guide support (7) and a rotating retractable motor (10). The rotating retractable motor (10) is fixedly connected to the bottom surface of the motor mounting boss (2). A rotating boss (15) is fixedly connected to the top side of the guide support (7). A rotating boss (15) is rotatably connected to the inner side of the rotating support hole on the side of the rotating support platform (12). The rotating boss (15) is fixedly connected to the output shaft of the rotating retractable motor (10).

4. The anti-roll semi-trailer support device according to claim 3, characterized in that; The bottom of the guide support (7) is provided with an internal sliding groove (16), and the outer side of the guide support (7) is provided with a guide groove (13), and the inside of the guide groove (13) is connected to the internal sliding groove (16).

5. The anti-roll semi-trailer support device according to claim 4, characterized in that; The reset support assembly includes a side support platform (6), a bottom support seat (8), and a connecting reset spring (14). The connecting reset spring (14) is fixedly connected to the inner side of the inner slide groove (16), the bottom support seat (8) is fixedly connected to the bottom surface of the connecting reset spring (14), the bottom support seat (8) is slidably connected to the inner side of the inner slide groove (16), the side support platform (6) is fixedly connected to the side of the bottom support seat (8), and the side support platform (6) is slidably connected to the inner side of the guide groove (13).

6. The anti-roll semi-trailer support device according to claim 1, characterized in that; The lifting drive assembly includes a lifting drive hydraulic cylinder (3), a lifting hydraulic rod (4), and a guide fixing platform (5). The lifting drive hydraulic cylinder (3) is fixedly connected to the inner side of the mounting groove (11), the lifting hydraulic rod (4) is slidably connected to the inner side of the lifting drive hydraulic cylinder (3), the guide fixing platform (5) is fixedly connected to the bottom surface of the lifting hydraulic rod (4), and the side support platform (6) is slidably connected to the bottom of the guide fixing platform (5).

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