Semitrailer for self-dumping side-turning container
The self-unloading semi-trailer addresses the complexity of expanding cargo space by employing a hinge and top-pushing mechanism with a multi-stage hydraulic cylinder, simplifying operations and enhancing unloading efficiency.
Patent Information
- Application Number
- CN202422942297.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-11-30
AI Technical Summary
In the prior art, the self-dumping and overturning container semi-trailer needs to raise the car or lower the chassis when expanding the space, resulting in complex operations and difficult to achieve simple space expansion.
The design of the vehicle body, the articulation mechanism and the pushing mechanism are adopted. The cargo compartment and the frame are formed into a lateral flip connection through the articulation mechanism. The multi-stage hydraulic cylinder provides the flip power, and the lower curved beam forms an accommodation space to achieve the flip side of the cargo compartment and avoid major changes to the vehicle body.
It realizes simple rollover of the cargo compartment, increases the amount of space, reduces the difficulty of modification, and ensures the strength of the vehicle body and the simplicity of operation.
Smart Images
Figure CN223100556U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of transport vehicles, and more specifically, relates to a semi-trailer with a self-unloading and side-tipping container. Background Art
[0002] A vehicle supported by wheels and a headstock together for a cargo compartment is called a semi-trailer, which is an important part of the transportation industry. Compared with other vehicles, the semi-trailer has stronger transport capacity and durability, and is an important heavy-duty transportation tool. During actual use, in order to save unloading time and labor and shorten the transportation cycle, a cargo compartment that can automatically tilt at a certain angle is generally provided. When unloading goods are required, the cargo compartment can tilt to one side, and at this time, the goods will automatically slide out under the action of gravity.
[0003] Currently, an oil cylinder is usually installed at the bottom of the frame. When the cargo compartment flips, the oil cylinder can provide thrust. However, the space at the bottom of the frame is limited. To install the oil cylinder, it is necessary to raise the carriage or lower the chassis to increase the space. However, the vehicle body structure is complex. Whether raising the carriage or lowering the chassis requires a large degree of modification to the frame. It can be seen that the related technology is complex in operation when expanding the space. Summary of the Invention
[0004] The purpose of the utility model is to provide a semi-trailer with a self-unloading and side-tipping container, so as to solve the disadvantage of complex operations in the prior art of raising the carriage or lowering the frame chassis when expanding the space, and to propose a semi-trailer with a self-unloading and side-tipping container.
[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a semi-trailer with a self-unloading and side-tipping container, including a vehicle body, a hinge mechanism, and a pushing mechanism. The vehicle body has a frame, a cargo compartment bracket, and a cargo compartment. The cargo compartment bracket is located above the frame, and the cargo compartment and the cargo compartment bracket are fixedly connected; the hinge mechanism is respectively connected to one side of the frame and one side of the cargo compartment bracket, and is used to form a hinge connection structure that can be laterally flipped between the frame and the cargo compartment bracket; the pushing mechanism is respectively connected to the middle of the frame and the middle of the cargo compartment bracket, and is used to push the cargo compartment to flip; wherein, a lower bent beam is provided in the middle of the frame, the top of the lower bent beam bends downward, and an accommodation space is formed with the cargo compartment bracket; the pushing mechanism includes a multi-stage hydraulic cylinder, the cylinder body of the multi-stage hydraulic cylinder is rotatably connected to the cargo compartment bracket, and the cylinder column of the multi-stage hydraulic cylinder is rotatably connected to the lower bent beam.
[0006] In combination with the above technical solution, in a possible implementation manner, the pushing mechanism further includes a lower hinge seat and two bearing seats. The lower hinge seat is fixedly connected to the lower bent beam and is hinged to the cylinder column of the multi-stage hydraulic cylinder; the two bearing seats are arranged at intervals and are both fixedly connected to the middle of the cargo compartment bracket, and are respectively connected to both sides of the cylinder body of the multi-stage hydraulic cylinder through rotating shafts.
[0007] Combined with the above technical solution, in a possible implementation manner, a fastener plate is fixedly provided at the lower part of the lower hinge seat. The fastener plate is buckled on the lower bent beam, and both sides of the fastener plate extend to both sides of the lower bent beam. The fastener plate and the lower bent beam are fixedly connected by bolts.
[0008] Combined with the above technical solution, in a possible implementation manner, an installation beam is provided in the middle of the cargo box bracket. The installation beam is a hollow tubular structure, and the bearing seat is connected to the installation beam by bolts; an installation window is provided on the side of the installation beam, and a reinforcing piece is fixedly provided at the edge of the installation window.
[0009] Combined with the above technical solution, in a possible implementation manner, a first through hole is provided at one end of the vehicle frame. The hinge mechanism includes a flip seat, a pin shaft and a vertical rotating shaft. The flip seats are respectively provided at both ends on one side of the vehicle frame, and second through holes are provided on both the side and the bottom of the flip seat; the vertical rotating shaft is provided on the flip seat and connects the flip seat and the vehicle frame through the first through hole and the second through hole, for adjusting the angle of the flip seat and offsetting the stress during flipping.
[0010] Combined with the above technical solution, in a possible implementation manner, the hinge mechanism further includes a sleeve, which is provided below the flip seat, fixedly connected to the flip seat and sleeved on the cross beam of the vehicle frame, for connecting the vehicle frame and the flip seat.
[0011] Combined with the above technical solution, in a possible implementation manner, a locking mechanism is provided on the vehicle frame. The locking mechanism is provided at the edge of the vehicle frame and is respectively connected to the vehicle frame and the cargo box bracket, for restricting the flipping angle of the cargo box.
[0012] Combined with the above technical solution, in a possible implementation manner, the locking mechanism includes a connecting plate, a spring and a limiting mechanism. The connecting plate is provided on the vehicle frame and is arranged opposite to the hinge mechanism; the spring is provided at the top of the connecting plate; the limiting mechanism is respectively connected to the top of the spring and the bottom of the cargo box, for generating resistance when the cargo box flips.
[0013] Combined with the above technical solution, in a possible implementation manner, the limiting mechanism includes a first limiting block, a telescopic rod and a second limiting block. The first limiting block is provided at the top of the spring; the telescopic rod is provided at the top of the first limiting block, for driving the first limiting block to move; the second limiting block is provided at the bottom of the cargo box and is connected to the first limiting block through the telescopic rod.
[0014] Combined with the above technical solutions, in a possible implementation, the locking mechanism further includes a transmission wheel and a transmission belt. The transmission wheel is arranged at one end of the connecting plate, below the first limit block, and is rotatably connected to the connecting plate; one end of the transmission belt is connected to the bottom of the first limit block, and the other end bypasses the transmission wheel and is connected to the bottom of the second limit block, and is used to drive the second limit block to move in the opposite direction when the first limit block moves.
[0015] The beneficial effects of the semi-trailer of the self-dumping side-turning container provided by the present invention are as follows: Compared with the prior art, in the semi-trailer of the self-dumping side-turning container provided by the present invention, a vehicle body, a frame, a cargo box bracket and a cargo box are provided. When side turning is required, the cargo box can be turned along the hinge mechanism located between the frame and the cargo box bracket, and at the same time, the top pushing mechanism pushes the cargo box; the accommodating space formed by the downward bending of the lower bending beam in the frame can achieve the effect of increasing the space volume, so as to accommodate the multi-stage hydraulic cylinder that provides power for the turning of the cargo box. At the same time, the multi-stage hydraulic cylinder is inverted, with a structure that is smaller at the bottom and larger at the top, which reduces the design difficulty of the lower bending beam and is beneficial to ensuring its strength. The whole improvement does not require major modifications to the vehicle body, and the operation is simpler. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic structural diagram of the semi-trailer provided by the embodiment of the present invention;
[0018] Figure 2 It is a simplified structural diagram of the semi-trailer provided by the embodiment of the present invention;
[0019] Figure 3 It is a schematic structural diagram of the bottom of the semi-trailer provided by the embodiment of the present invention;
[0020] Figure 4 It is a schematic structural diagram of the bearing seat provided by the embodiment of the present invention;
[0021] Figure 5 It is a schematic structural diagram of the lower hinge seat provided by the embodiment of the present invention;
[0022] Figure 6 It is a schematic structural diagram of the hinge mechanism provided by the embodiment of the present invention;
[0023] Figure 7The front view of the hinge mechanism provided by the embodiment of the present utility model;
[0024] Figure 8 The structural schematic diagram of the locking mechanism provided by the embodiment of the present utility model;
[0025] Figure 9 The exploded view of the limiting mechanism provided by the embodiment of the present utility model;
[0026] Figure 10 The structural schematic diagram of the rollover of the semi-trailer provided by the embodiment of the present utility model.
[0027] Among them, the reference numerals in the figures are as follows:
[0028] Vehicle body; 11, Frame; 12, Cargo box bracket; 111, Lower bending beam; 121, Installation beam; 122, Installation window; 123, Reinforcing plate;
[0029] 20, Cargo box; 30, Hinge mechanism; 31, Tipping seat; 32, Vertical rotating shaft; 33, Sleeve;
[0030] 40, Locking mechanism; 41, Connecting plate; 42, Spring; 43, Limiting mechanism; 44, First limit; 45, Telescopic rod; 46, Second limit block; 47, Driving wheel; 48, Transmission belt
[0031] 50, Thrust mechanism; 51, Multi-stage hydraulic cylinder; 52, Lower hinge seat; 53, Bearing seat; 521, Clamping plate. Detailed implementation manners
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0033] It should be further noted that the drawings and embodiments of the present utility model mainly describe and explain the concept of the present utility model. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be completely described. However, on the premise that those skilled in the art understand the concept of the present utility model, those skilled in the art can implement the above specific forms and settings in a well-known manner.
[0034] When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly thereon. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected thereto.
[0035] The orientation terms "inside" and "outside" refer to the inside and outside relative to the contour of each component itself. The terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.
[0036] For the convenience of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawings is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.
[0037] The semi-trailer of the self-unloading and side-tipping container provided by the present invention will now be described.
[0038] Such as Figure 1 , Figure 2 and Figure 10As shown in the figure, the first embodiment of the present utility model provides a semi-trailer for a self-unloading side-tipping container, which includes a vehicle body 10, a hinge mechanism 30, and a pushing mechanism 50. The vehicle body 10 has a vehicle frame 11, a cargo box bracket 12, and a cargo box 20. The cargo box bracket 12 is located above the vehicle frame 11, and the cargo box 20 is fixedly connected to the cargo box bracket 12. The hinge mechanism 30 is respectively connected to one side of the vehicle frame 11 and one side of the cargo box bracket 12, and is used to form a hinge connection structure that can be laterally flipped between the vehicle frame 11 and the cargo box bracket 12. The pushing mechanism 50 is respectively connected to the middle of the vehicle frame 11 and the middle of the cargo box bracket 12, and is used to push the cargo box 20 to flip. Among them, a downward-bending beam 111 is provided in the middle of the vehicle frame 11, and the top of the downward-bending beam 111 bends downward to form a receiving space with the cargo box bracket 12. The pushing mechanism 50 includes a multi-stage hydraulic cylinder 51. The cylinder body of the inverted multi-stage hydraulic cylinder 51 is rotatably connected to the cargo box bracket 12, and the cylinder column of the multi-stage hydraulic cylinder 51 is rotatably connected to the downward-bending beam 111.
[0039] It should be noted that the cargo box bracket 12 and the cargo box 20 can be a detachable split structure or a fixed integral structure. In a specific embodiment, the cargo box 20 is a container box body, and the cargo box bracket 12 is a bottom cross beam of the container. The cargo box 20 and the cargo box bracket 12 constitute an existing container structure.
[0040] Compared with the prior art, in the semi-trailer for a self-unloading side-tipping container provided by the present utility model, the vehicle body 10, the vehicle frame 11, the cargo box bracket 12, and the cargo box 20 are provided. When side tipping is required, the cargo box 20 can flip along the hinge mechanism 30 located between the vehicle frame 11 and the cargo box bracket 12, and at the same time, the pushing mechanism 50 pushes the cargo box 20. The receiving space formed by the downward bending of the downward-bending beam 111 in the vehicle frame 11 can achieve the effect of increasing the space volume, so as to accommodate the multi-stage hydraulic cylinder 51 that provides power for the flipping of the cargo box 20, without making major modifications to the vehicle body 10, and the operation is simpler.
[0041] As Figures 2 to 10 shown, a specific embodiment provided by the present invention on the basis of the first embodiment is as follows:
[0042] As Figures 3 to 5 shown, the pushing mechanism 50 further includes a lower hinge seat 52, which is fixedly connected to the downward-bending beam 111 and is hinged to the cylinder column of the multi-stage hydraulic cylinder 51. Two bearing seats 53 are arranged at intervals and are both fixedly connected to the middle of the cargo box bracket 12, and are respectively connected to both sides of the cylinder body of the multi-stage hydraulic cylinder 51 through a rotating shaft.
[0043] Further, a buckle plate 521 is fixedly provided at the lower part of the lower hinge seat 52. The buckle plate 521 is buckled on the lower bent beam 111, and both sides of the buckle plate 521 extend to both sides of the lower bent beam 111. The buckle plate 521 and the lower bent beam 111 are fixedly connected by bolts. The setting of the buckle plate 521 can, on the one hand, facilitate the positioning and installation of the bolts, and on the other hand, still play a certain fixing role when the bolts become loose, reducing the possibility of dangerous accidents.
[0044] Further, an installation beam 121 is provided in the middle of the cargo box bracket 12. The installation beam 121 is a hollow tubular structure. The bearing seat 53 is connected to the installation beam 121 by bolts. An installation window 122 is provided on the side of the installation beam 121 to facilitate the installation of the bolts without being affected by the cargo box 20. Reinforcing pieces 123 are fixedly provided at the edge of the installation window 122 to ensure the strength of the installation beam 121.
[0045] As Figures 6 to 7 shown, in a specific embodiment of the semi-trailer of the self-unloading and side-turning container provided by the present utility model, a first through hole is provided at one end of the vehicle frame 11. The hinge mechanism 30 includes a turning seat 31, which is respectively provided at both ends on one side of the vehicle frame 11. Second through holes are provided on both the side and the bottom of the turning seat 31; a pin shaft is provided on the second through hole of the turning seat 31 and the through hole of the cargo box bracket 12; a vertical rotating shaft 32 is provided on the turning seat 31, and sequentially passes through the second through hole and the first through hole to fix the turning seat 31 on the vehicle frame 11. The vertical rotating shaft 32 can be used to adjust the angle of the turning seat 31 so that the turning seat 31 can better connect with the cargo box 20. At the same time, the vertical rotating shaft 32 can also offset the stress generated when the cargo box 20 turns, avoiding deformation of the turning seat 31.
[0046] As Figure 6 shown, in a specific embodiment of the semi-trailer of the self-unloading and side-turning container provided by the present utility model, the hinge mechanism 30 further includes a sleeve 33, which is provided below the turning seat 31 and fixedly connected to the turning seat 31, and is sleeved on the cross beam of the vehicle frame 11 to further reinforce the vehicle frame 11 and the turning seat 31.
[0047] As Figure 2 shown, in a specific embodiment of the semi-trailer of the self-unloading and side-turning container provided by the present utility model, a locking mechanism 40 is provided on the vehicle frame 11. The locking mechanism 40 is provided at the edge of the vehicle frame 11 and is respectively connected to the vehicle frame 11 and the cargo box bracket 12, and is used to limit the turning angle of the cargo box 20.
[0048] As Figures 8 to 10As shown, in a specific embodiment of the semi-trailer of the self-unloading and side-tipping container provided by the present utility model, the locking mechanism 40 includes a connecting plate 41 disposed on the vehicle frame 11 and opposite to the hinging mechanism 30; a spring 42 is disposed on the top of the connecting plate 41; the limiting mechanism 43 is respectively connected to the top of the spring 42 and the bottom of the cargo box 20, and is used to generate resistance when the cargo box 20 is turned over.
[0049] Further, the limiting mechanism 43 includes a first limiting block 44 disposed on the top of the spring 42; a telescopic rod 45 is disposed on the top of the first limiting block 44 and is used to drive the first limiting block 44 to move; a second limiting block 46 is disposed on the bottom of the cargo box 20 and is connected to the first limiting block 44 through the telescopic rod 45.
[0050] Further, the locking mechanism 40 further includes a transmission wheel 47 disposed at one end of the connecting plate 41, and located below the first limiting block 44 and rotatably connected to the connecting plate 41; one end of a transmission belt 48 is connected to the bottom of the first limiting block 44, and the other end bypasses the transmission wheel 47 and is connected to the bottom of the second limiting block 46, and is used to drive the second limiting block 46 to move in the reverse direction when the first limiting block 44 moves.
[0051] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0053] Unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
Claims
1. A semi-trailer for a self-unloading and side-tipping container, characterized in that, Comprising: A vehicle body (10) having a frame (11), a cargo box bracket (12), and a cargo box (20), wherein the cargo box bracket (12) is located above the frame (11), and the cargo box (20) is fixedly connected to the cargo box bracket (12); A hinge mechanism (30) respectively connected to one side of the frame (11) and one side of the cargo box bracket (12) for forming a laterally rotatable hinge connection structure between the frame (11) and the cargo box bracket (12); A pushing mechanism (50) respectively connected to the middle of the frame (11) and the middle of the cargo box bracket (12) for pushing the cargo box (20) to flip; Wherein, a downwardly bent beam (111) is provided in the middle of the frame (11), the top of the downwardly bent beam (111) is bent downward to form an accommodation space with the cargo box bracket (12); The pushing mechanism (50) includes a multi-stage hydraulic cylinder (51), the cylinder body of the multi-stage hydraulic cylinder (51) is rotatably connected to the cargo box bracket (12), and the cylinder rod of the multi-stage hydraulic cylinder (51) is rotatably connected to the downwardly bent beam (111).
2. The semi-trailer of a self-unloading and side-tipping container as claimed in claim 1, wherein, The pushing mechanism (50) further includes: A lower hinge seat (52) fixedly connected to the downwardly bent beam (111) and hinged to the cylinder rod of the multi-stage hydraulic cylinder (51); Two bearing seats (53), the two bearing seats (53) are spaced apart and both fixedly connected to the middle of the cargo box bracket (12), and are respectively connected to both sides of the cylinder body of the multi-stage hydraulic cylinder (51) through a rotating shaft.
3. The semi-trailer of a dump side-tipping container according to claim 2, characterized in that, A clamping plate (521) is fixedly provided at the lower part of the lower hinge seat (52), the clamping plate (521) is clamped on the downwardly bent beam (111), and both sides of the clamping plate (521) extend to both sides of the downwardly bent beam (111), and the clamping plate (521) and the downwardly bent beam (111) are fixedly connected by bolts.
4. The semi-trailer of a self-unloading and side-tipping container according to claim 2, characterized in that, An installation beam (121) is provided in the middle of the cargo box bracket (12), the installation beam (121) is a hollow tubular structure, and the bearing seat (53) is connected to the installation beam (121) by bolts; an installation window (122) is provided on the side of the installation beam (121), and a reinforcing piece (123) is fixedly provided at the edge of the installation window (122).
5. The semi-trailer of a self-unloading and side-tipping container according to claim 4, characterized in that, A first through hole is provided at one end of the frame (11), and the hinge mechanism (30) includes: Flipping seats (31) respectively provided at both ends of one side of the frame (11), and second through holes are provided on the side surface and the bottom surface of the flipping seats (31); A pin shaft provided on the second through holes of the flipping seats (31) and the through holes of the cargo box bracket (12); A vertical rotating shaft (32) provided on the flipping seats (31) and connecting the flipping seats (31) and the frame (11) through the first through hole and the second through hole for adjusting the angle of the flipping seats (31) and offsetting the stress during flipping.
6. The semi-trailer of a self-unloading and side-tipping container as claimed in claim 5, wherein, The hinge mechanism (30) further includes: The sleeve (33) is arranged below the tilting seat (31), fixedly connected to the tilting seat (31), and sleeved on the cross beam of the vehicle frame (11) for connecting the vehicle frame (11) and the tilting seat (31).
7. The semi-trailer of a self-unloading and side-tipping container as claimed in claim 1, wherein, A locking mechanism (40) is provided on the vehicle frame (11). The locking mechanism (40) is arranged at the edge of the vehicle frame (11) and is respectively connected to the vehicle frame (11) and the cargo box bracket (12) for restricting the tilting angle of the cargo box (20).
8. The semi-trailer of a dump side-tipping container according to claim 7, wherein, The locking mechanism (40) includes: A connecting plate (41) is arranged on the vehicle frame (11) and is oppositely arranged to the hinge mechanism (30); A spring (42) is arranged on the top of the connecting plate (41); A limiting mechanism (43) is respectively connected to the top of the spring (42) and the bottom of the cargo box (20) for generating resistance when the cargo box (20) tilts.
9. The semi-trailer of a dump and side-tipping container according to claim 8, characterized in that, The limiting mechanism (43) includes: A first limiting block (44) is arranged on the top of the spring (42); A telescopic rod (45) is arranged on the top of the first limiting block (44) for driving the first limiting block (44) to move; A second limiting block (46) is arranged at the bottom of the cargo box (20) and is connected to the first limiting block (44) through the telescopic rod (45).
10. The semi-trailer of a self-unloading and side-tipping container according to claim 9, wherein, The locking mechanism (40) further includes: A transmission wheel (47) is arranged at one end of the connecting plate (41), located below the first limiting block (44), and is rotatably connected to the connecting plate (41); A transmission belt (48) has one end connected to the bottom of the first limiting block (44), and the other end bypasses the transmission wheel (47) and is connected to the bottom of the second limiting block (46) for driving the second limiting block (46) to move in the reverse direction when the first limiting block (44) moves.