A new type of semi-trailer bracket
The new semi-trailer bracket's pushing mechanism and L-shaped shelf design enable automated loading and unloading of goods, solving the problem of low loading and unloading efficiency of existing brackets, improving loading and unloading speed and space utilization, and making it suitable for large-volume, high-frequency cargo transfer.
Patent Information
- Application Number
- CN202522641176.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-12-12
AI Technical Summary
Existing semi-trailer trailers rely on manual or external equipment for loading and unloading, resulting in low loading and unloading efficiency and insufficient utilization of cargo space, making it difficult to achieve efficient and safe cargo transfer.
A novel semi-trailer bracket is designed, which adopts a collaborative design of a pushing mechanism and an L-shaped storage rack. The guide rod is driven to rise by a multi-stage cylinder, and the storage rack and the cargo are automatically pushed out of the side of the trailer by the transmission of the swing arm and the push plate. The combination of pulleys and guide grooves, rollers and longitudinal guide rails reduces frictional resistance and realizes automated loading and unloading.
It enables automated lateral removal of goods, improves loading and unloading speed and space utilization, reduces the need for workers to enter the carriage, and is suitable for large-volume, high-frequency cargo transfer scenarios.
Smart Images

Figure CN224856810U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of semi-trailer technology, specifically relating to a novel semi-trailer bracket. Background Technology
[0002] Semi-trailers, as core equipment in road freight transport, are widely used for long-distance transportation of industrial raw materials, consumer goods, and e-commerce goods. With the increasing demands for efficiency, precision, and safety in the logistics industry, the loading and unloading efficiency, space utilization, and operational safety of semi-trailers have become key factors restricting the efficiency of freight transport.
[0003] The existing semi-trailer trailers rely on manual labor or external equipment for loading and unloading. Workers need to work inside the trailer, and due to space constraints, forklifts and other equipment cannot move flexibly. Furthermore, goods need to be repeatedly transferred, resulting in low loading and unloading efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a new type of semi-trailer bracket, which aims to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A new type of semi-trailer bracket, including a main bracket, A carriage is provided above the main body bracket. Multiple pushing mechanisms are arranged inside the carriage. Multiple shelves are provided inside the carriage. The shelves are L-shaped and are slidably mounted on the surface of the main body bracket. The shelves cooperate with the pushing mechanisms. The pushing mechanism includes two uprights, which are symmetrically arranged on one side of the interior of the carriage. The bottom of each upright is fixedly connected to the main support frame. The surface of each upright has a groove, and a smooth rod is slidably installed between the two grooves. A crossbar is fixedly installed on the top of each upright. Protrusions are provided at both ends of the crossbar near the shelf. A push plate is installed between the two protrusions via a pivot. A connecting block is installed at the bottom of the push plate via a pivot. The other end of the connecting block is slidably installed on the surface of the shelf. A swing arm is rotatably installed on the surface of the smooth rod. Protrusions are provided on both sides of the push plate near the top. The other end of the swing arm is movably sleeved on the surface of the protrusion.
[0006] In a preferred embodiment of this utility model, a multi-stage cylinder is installed at the bottom end of the crossbar, and a connecting plate is provided at the output end of the multi-stage cylinder, with the end of the connecting plate fixedly connected to the optical rod.
[0007] As a preferred embodiment of this utility model, the side of the carriage is provided with multiple side doors, which correspond to the pushing mechanism and the storage rack.
[0008] As a preferred embodiment of this utility model, a rectangular block is provided at the bottom of the shelf and at one end near the upright, a frame is provided directly below the connecting plate, and an L-shaped pressing plate is provided at the end of the frame, with the bottom surface of the L-shaped pressing plate snapped onto the surface of the rectangular block.
[0009] In a preferred embodiment of this utility model, the surface of the main bracket is provided with a shrinkage groove, the bottom of the frame is provided with a guide post, the surface of the guide post is movably inserted into the shrinkage groove, the inside of the shrinkage groove is provided with a spring, and the top end of the spring is connected to the guide post.
[0010] As a preferred embodiment of this utility model, a guide groove is provided on the surface of the main bracket and directly below the shelf, and a pulley is provided at the bottom of the shelf and is slidably installed in the guide groove.
[0011] As a preferred embodiment of this utility model, the side of the shelf is provided with a longitudinal guide rail, and the end of the connecting block is provided with a roller that cooperates with the longitudinal guide rail.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The device realizes the automated lateral movement of goods through the coordinated design of the pushing mechanism and the L-shaped shelf. After the multi-stage cylinder drives the smooth rod to rise, the shelf and the goods can be directly pushed to the side of the carriage through the transmission of the swing arm, the pushing plate and the connecting block. Workers only need to complete the handover of goods outside the carriage without entering the carriage. At the same time, the cooperation between the pulley and the guide groove, and the roller and the longitudinal guide rail, transforms the sliding friction into rolling friction, reduces the moving resistance of the shelf, and further improves the loading and unloading speed. It is especially suitable for large-volume and high-frequency cargo transfer scenarios. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side sectional view of the present invention; Figure 3 This is a schematic diagram of the material pushing mechanism and the shelf structure of this utility model; Figure 4 This is a schematic diagram of the material pushing mechanism and shelf structure from another perspective of this utility model; Figure 5 This is a schematic diagram of the feeding mechanism of this utility model; Figure 6 This utility model Figure 2 Enlarged view of point A in the middle.
[0014] In the diagram: 1. Main support frame; 2. Carriage; 3. Side door; 4. Storage rack; 5. Upright pole; 6. Slide groove; 7. Smooth pole; 8. Connecting plate; 9. Multi-stage cylinder; 10. Crossbar; 11. Swing arm; 12. Push plate; 13. Protruding block; 14. Connecting block; 15. Frame; 16. L-shaped pressing plate; 17. Rectangular block; 18. Guide column; 19. Shrinkage groove; 20. Spring. Detailed Implementation
[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0017] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0018] Example Reference Figure 1-6 This is an embodiment of the present invention, which provides a novel semi-trailer bracket, including a main bracket 1. A carriage 2 is provided above the main body bracket 1. Multiple pushing mechanisms are arranged inside the carriage 2. Multiple shelves 4 are provided inside the carriage 2. The shelves 4 are L-shaped and are slidably installed on the surface of the main body bracket 1. The shelves 4 cooperate with the pushing mechanisms. The pushing mechanism includes two uprights 5, which are symmetrically arranged on one side inside the carriage 2. The bottom of the uprights 5 is fixedly connected to the main bracket 1. The surface of the uprights 5 is provided with a sliding groove 6. A smooth rod 7 is slidably installed between the two sliding grooves 6. A crossbar 10 is fixedly installed on the top of the two uprights 5. Protrusions 13 are provided at both ends of the crossbar 10 near the shelf 4. A push plate 12 is installed between the two protrusions 13 via a pivot. A connecting block 14 is installed at the bottom of the push plate 12 via a pivot. The other end of the connecting block 14 is slidably installed on the surface of the shelf 4. A swing arm 11 is rotatably installed on the surface of the smooth rod 7. Protrusions are provided on both sides of the push plate 12 near the top. The other end of the swing arm 11 is movably sleeved on the surface of the protrusion.
[0019] In use, when the rod 7 moves upward, it causes the lower end of the swing arm 11, which is rotatably connected to it, to rise as well. The upper end of the swing arm 11 is movably fitted onto the protrusion on the upper part of the push plate 12. Therefore, when the lower end of the swing arm 11 is lifted, it pushes this protrusion, thereby exerting a force on the push plate 12. The top of the push plate 12 is mounted between the two protrusions 13 of the crossbar 10 via a pivot, allowing the push plate 12 to rotate around the top pivot as a fulcrum. Under the push of the swing arm 11, the push plate 12 is moved... The bottom of the push plate 12 will swing outwards from the carriage 2. The bottom of the push plate 12 is connected to a connecting block 14 via a pivot, and the other end of the connecting block 14 is slidably mounted on the surface of the shelf 4. When the bottom of the push plate 12 swings outwards from the carriage 2, it will apply a horizontal pushing force to the shelf 4 through the connecting block 14. The L-shaped shelf 4 is slidably mounted on the main bracket 1. Under the action of this horizontal pushing force, the entire shelf 4, together with the goods on it, slides outwards from the side of the carriage 2.
[0020] In summary, the pushing mechanism can slide the shelf 4 along with the goods on it to the side of the carriage 2. Loading and unloading workers do not need to go deep into the carriage 2 to carry out heavy handling work. They only need to wait outside the carriage 2 for the shelf 4 to be pushed out before they can operate. At the same time, the design of the shelf 4 in an arrangement makes full use of the horizontal space of the carriage 2, realizing precise management and rapid storage and retrieval of the cargo.
[0021] Furthermore, a multi-stage cylinder 9 is installed at the bottom of the crossbar 10, and a connecting plate 8 is provided at the output end of the multi-stage cylinder 9. The end of the connecting plate 8 is fixedly connected to the light rod 7.
[0022] When in use, when the piston rod of the multi-stage cylinder 9 is retracted, the connecting plate 8 fixed at its output end moves upward. Since the end of the connecting plate 8 is fixedly connected to the light rod 7, the light rod 7 is forced to move upward. The two ends of the light rod 7 are restricted in the slide groove 6 of the upright 5, so it makes a precise vertical upward movement along the slide groove 6.
[0023] Furthermore, the side of the carriage 2 is provided with multiple side doors 3, which correspond to the material pushing mechanism and the storage rack 4.
[0024] When in use, during unloading, only the side door 3 for the specific operation needs to be opened, while the other side doors 3 remain closed. This effectively prevents personnel from accidentally falling from other non-operational areas or from being accidentally hit by other vehicles or equipment in busy freight yards.
[0025] Furthermore, a rectangular block 17 is provided at the bottom of the shelf 4 and near the end of the upright 5. A frame 15 is provided directly below the connecting plate 8. An L-shaped pressing plate 16 is provided at the end of the frame 15. The bottom surface of the L-shaped pressing plate 16 is snapped onto the surface of the rectangular block 17. A shrinkage groove 19 is provided on the surface of the main bracket 1. A guide post 18 is provided at the bottom of the frame 15. The surface of the guide post 18 is movably inserted into the shrinkage groove 19. A spring 20 is provided inside the shrinkage groove 19. The top end of the spring 20 is connected to the guide post 18.
[0026] When in use, when the L-shaped pressing plate 16 and the rectangular block 17 are engaged, the L-shaped pressing plate 16 can press the rectangular block 17, thereby ensuring the stability of the shelf 4 during operation. When the multi-stage cylinder 9 drives the connecting plate 8 and the light rod 7 to move upward, the frame frame 15, which is fixedly connected to the connecting plate 8, also moves upward synchronously. At this time, the bottom surface of the L-shaped pressing plate 16 at the end of the frame frame 15 will be lifted from the surface of the rectangular block 17, thereby releasing the pressing limit on the rectangular block 17.
[0027] Furthermore, a guide groove is provided on the surface of the main bracket 1 and directly below the shelf 4, and a pulley is provided at the bottom of the shelf 4 to slide in the guide groove.
[0028] When in use, the cooperation between the pulley and the guide groove converts the possible sliding friction into rolling friction. When a horizontal thrust is applied, the pulley rolls in the guide groove, thereby driving the entire shelf 4 to move.
[0029] Furthermore, the side of the shelf 4 is provided with a longitudinal guide rail, and the end of the connecting block 14 is provided with a roller that cooperates with the longitudinal guide rail.
[0030] When in use, when the push plate 12 is flipped under the drive of the swing arm 11, the movement trajectory of its bottom is an arc. The end of the connecting block 14 is installed in the longitudinal guide rail on the side of the shelf 4 through a roller, which ensures that the shelf 4 moves horizontally and linearly along the path set by the bottom guide groove, avoiding any slight jumps or deviations caused by the interference of the drive mechanism. This makes the extension and retraction of the shelf 4 more stable and precise.
[0031] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0032] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0033] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A novel semi-trailer bracket, characterized in that: Including the main bracket (1). A carriage (2) is provided above the main body bracket (1). Multiple pushing mechanisms are arranged inside the carriage (2). Multiple shelves (4) are provided inside the carriage (2). The shelves (4) are L-shaped and are slidably installed on the surface of the main body bracket (1). The shelves (4) cooperate with the pushing mechanisms. The pushing mechanism includes two uprights (5), which are symmetrically arranged on one side inside the carriage (2). The bottom of the uprights (5) is fixedly connected to the main body bracket (1). The surface of the uprights (5) is provided with a groove (6). A smooth rod (7) is slidably installed between the two grooves (6). A crossbar (10) is fixedly installed on the top of the two uprights (5). The two ends of the crossbar (10) near the shelf (4) are provided with protrusions (13). A push plate (12) is installed between the two protrusions (13) through a pivot. A connecting block (14) is installed at the bottom of the push plate (12) through a pivot. The other end of the connecting block (14) is slidably installed on the surface of the shelf (4). A swing arm (11) is rotatably installed on the surface of the smooth rod (7). The two sides of the push plate (12) near the top are provided with protrusions. The other end of the swing arm (11) is movably sleeved on the surface of the protrusion.
2. The novel semi-trailer bracket according to claim 1, characterized in that: The bottom end of the crossbar (10) is equipped with a multi-stage cylinder (9), and the output end of the multi-stage cylinder (9) is provided with a connecting plate (8). The end of the connecting plate (8) is fixedly connected to the light rod (7).
3. The novel semi-trailer bracket according to claim 1, characterized in that: The side of the carriage (2) is provided with multiple side doors (3), which correspond to the pushing mechanism and the shelf (4).
4. A novel semi-trailer bracket according to claim 2, characterized in that: A rectangular block (17) is provided at the bottom of the shelf (4) and at one end near the upright (5). A frame frame (15) is provided directly below the connecting plate (8). An L-shaped pressing plate (16) is provided at the end of the frame frame (15). The bottom surface of the L-shaped pressing plate (16) is engaged with the surface of the rectangular block (17).
5. A novel semi-trailer bracket according to claim 4, characterized in that: The main bracket (1) has a shrinkage groove (19) on its surface. The bottom of the frame (15) is provided with a guide post (18). The surface of the guide post (18) is movably inserted into the shrinkage groove (19). A spring (20) is provided inside the shrinkage groove (19). The top end of the spring (20) is connected to the guide post (18).
6. A novel semi-trailer bracket according to claim 1, characterized in that: The main bracket (1) has a guide groove on its surface and directly below the shelf (4), and the bottom of the shelf (4) is provided with pulleys that slide in the guide groove.
7. A novel semi-trailer bracket according to claim 1, characterized in that: The side of the shelf (4) is provided with a longitudinal guide rail, and the end of the connecting block (14) is provided with a roller that cooperates with the longitudinal guide rail.