A double-sided turnover self-unloading semi-trailer box structure convenient to unfold

Abstract

The utility model relates to the technical field of the car box structure, especially a kind of double-side flip self-unloading semitrailer box structure convenient to unfold, including bottom plate, the bottom plate upper surface is fixedly installed with car, the car top both sides are hinged with wing door, the car upper end front and rear sides are fixedly installed with rotating seat, the rotating seat upper end is rotatably connected with hydraulic cylinder, the wing door inboard is fixedly installed with mounting plate, the hydraulic cylinder end portion is rotatably connected with mounting plate, the bottom plate both sides are fixedly connected with the locking mechanism of mutually cooperating between wing door bottom, this double-side flip self-unloading semitrailer box structure convenient to unfold can be side loading and unloading, and loading and unloading efficiency is high, is worth promoting.

Description

Technical Field

[0001] This utility model relates to the field of vehicle box structure technology, and in particular to a double-sided tipping self-unloading semi-trailer box structure that is easy to unfold. Background Technology

[0002] With its outstanding loading and unloading efficiency and wide range of cargo types, the double-sided tipping semi-trailer has been widely used in many fields such as building material transportation, mineral transshipment, and agricultural material distribution, becoming an important piece of equipment for improving freight turnover efficiency.

[0003] As an upgraded version of the standard carriage, the wing-shaped vehicle is equipped with wing panels, a hydraulic system, and fasteners. The upper part of the wing panels is hinged to the top of the carriage, and the hydraulic system is also installed on the top, which controls the opening and closing of the two wing panels. The lower part is reinforced by latches, which greatly simplifies loading and unloading operations.

[0004] However, using latches to secure the wing panels has significant shortcomings. The latches are exposed to the external environment, making them easily accessible and openable by criminals, increasing the risk of cargo theft, posing a threat to transportation security, and making it difficult to guarantee the safety of goods during transit. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where the exposed locking structure poses a safety risk, and to propose a double-sided tipping self-unloading semi-trailer box structure that is easy to unfold.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a double-sided tipping self-unloading semi-trailer box structure that is easy to unfold, including a bottom plate, on the upper surface of the bottom plate a trailer body is fixedly installed, wing doors are hinged to both sides of the top of the trailer body, rotating seats are fixedly installed on both the front and rear sides of the upper end of the trailer body, a hydraulic cylinder is rotatably connected to the upper end of the rotating seat, an mounting plate is fixedly installed on the inner side of the wing door, the end of the hydraulic cylinder is rotatably connected to the mounting plate, and locking mechanisms that cooperate with each other are fixedly connected between the two sides of the bottom plate and the bottom of the wing door.

[0007] Preferably, the locking mechanism includes a fixed frame, the upper end of which is fixedly installed at the bottom of the wing door, a connecting seat is fixedly installed on the lower surface of the base plate, a rod is inserted through the fixed frame, the end of the rod extends into the connecting seat, a fixed box is fixedly installed inside the base plate, a limit block is slidably arranged inside the fixed box, one end of the limit block is connected to the inner wall of the fixed box by a spring, and the other end passes through the bottom of the fixed box and extends into the rod, and an electromagnet block that cooperates with each other is also fixedly arranged between the inner wall of the fixed box and the limit block.

[0008] Preferably, the insertion rod is a structure with a square cross-section.

[0009] Preferably, the lower end of the fixing frame is bent toward the side closer to the connecting seat.

[0010] Preferably, multiple sets of the fixing frame and the connecting seat are provided.

[0011] Preferably, an electromagnetic lock is fixedly installed on the bottom surface of the base plate that fits against the lower end of the wing door.

[0012] Preferably, an elastic buffer pad is fixedly installed on the upper surface of the wing door that is in contact with the carriage, and the elastic buffer pad is made of a rubber structure.

[0013] The present invention proposes an easily deployable double-sided tipping semi-trailer box structure, the advantages of which are as follows: During use, the two wing doors are driven and controlled by independent hydraulic cylinders, allowing for independent opening on one side. This allows for flexible adjustment according to different operating scenarios, adapting to diverse loading and unloading needs. The wing doors can rotate to a horizontally deployed state, providing ample operating space for loading and unloading operations, thus improving efficiency. In the closed state, a spring-driven limit block mechanically locks the insertion rod, ensuring stable positioning of the wing door. Opening requires unlocking via an electromagnet block; this dual-safety mechanism enhances the safety of the structure. The entire opening and closing process is achieved through hydraulic cylinder drive and electromagnetic control, with clear action response and standardized operating procedures, making it easy for operators to master and execute. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a double-sided tipping self-unloading semi-trailer box that is easy to unfold and installed on the vehicle body, according to the present invention. Figure 2 This is a cross-sectional view of a double-sided tipping self-unloading semi-trailer box structure that is easy to unfold, as proposed in this utility model. Figure 3 This is a schematic diagram of the wing door of a double-sided tipping self-unloading semi-trailer box structure that is easy to unfold, as proposed in this utility model; Figure 4 for Figure 2 A magnified structural diagram of point A in the middle.

[0015] In the diagram: 100, base plate; 2, carriage; 3, wing door; 4, rotating seat; 5, hydraulic cylinder; 6, mounting plate; 7, locking mechanism; 71, fixing frame; 72, insert rod; 73, connecting seat; 74, fixing box; 75, spring; 76, electromagnet block; 77, limit block; 8, electromagnetic lock. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Example 1: Refer to Figure 1-4 A scalable double-sided tipping semi-trailer body structure includes a floor plate 100, which is directly fixed to the vehicle body by bolts, welding, or other methods to form an integral load-bearing foundation. A cargo box 2 is fixedly installed on the upper surface of the floor plate 100. Wing doors 3 are hinged to both sides of the top of the cargo box 2. The wing doors 3 can rotate upwards around the hinge axis at the top of the cargo box 2 to achieve the opening and closing function of the sides of the cargo box 2. (See attached diagram) Figure 2 As shown, it is in its closed state, with the wing door 3 fitting snugly against the carriage 2, forming a completely enclosed structure; as shown in the attached diagram. Figure 3 As shown, it is in the unfolded state. At this time, the wing door 3 flips open to both sides, revealing the interior space of the carriage 2, which is convenient for loading and unloading operations.

[0018] Rotary seats 4 are fixedly installed on both the front and rear sides of the upper end of the carriage 2. A hydraulic cylinder 5 is rotatably connected to the upper end of the rotating seat 4. The hydraulic cylinder 5 is a structure found in existing technology. A mounting plate 6 is fixedly installed inside the wing door 3. The end of the hydraulic cylinder 5 is rotatably connected to the mounting plate 6, which is located at the force-bearing node of the wing door 3. The cylinder barrel end of the hydraulic cylinder 5 can rotate around the rotating seat 4, and the piston rod end of the hydraulic cylinder 5 can rotate around the mounting plate 6. When the hydraulic cylinder 5 is activated, the piston rod end pushes the mounting plate 6 upwards, causing the wing door 3 to rotate. Subsequently, the piston rod end of the hydraulic cylinder 5 continues to rotate upwards until the wing door 3 rotates 90° and then stops. At this point, the wing door 3 is fully open, facilitating loading and unloading of goods.

[0019] A locking mechanism 7 is fixedly connected between the two sides of the base plate 100 and the bottom of the wing door 3. The locking mechanism 7 includes a fixing frame 71. The upper end of the fixing frame 71 is fixedly installed at the bottom of the wing door 3, and the lower end of the fixing frame 71 is bent towards the side closer to the connecting seat 73, as shown in the attached figure. Figure 4 As shown, the fixing bracket 71 is L-shaped. The fixing bracket 71 can seal the gap between it and the connecting seat 73, preventing unauthorized personnel from damaging the insertion rod 72. Multiple sets of fixing brackets 71 and connecting seats 73 are provided. By setting multiple locking mechanisms 7, the connection between the wing door 3 and the carriage 2 can be made more secure and safer.

[0020] A connecting seat 73 is fixedly installed on the lower surface of the base plate 100. A plug rod 72 is connected through the inside of the fixing bracket 71. The plug rod 72 has a square cross-section and its end extends into the connecting seat 73. A fixing box 74 is fixedly installed inside the base plate 100. A limit block 77 is slidably installed inside the fixing box 74. One end of the limit block 77 is connected to the inner wall of the fixing box 74 by a spring 75, and the other end passes through the bottom of the fixing box 74 and extends into the plug rod 72. Under the elastic action of the spring 75, the lower end of the limit block 77 will resist the plug rod 72, allowing the limit block 77 to limit the plug rod 72 and prevent it from moving outward, thus locking it. An electromagnet block 76 is also fixedly installed between the inner wall of the fixing box 74 and the limit block 77. When the power is turned on inside the electromagnet block 76, the electromagnet blocks 76 attract each other, the spring 75 is compressed, and the limit block 77 moves upward and disengages from the plug rod 72. At this point, the insert rod 72 can be removed, which can release the locking effect of the wing door 3. The insert rod 72 is completely hidden inside the fixing bracket 71 and the connecting seat 73, and the button for controlling the electromagnet block 76 is also integrated into the vehicle control panel. It is very difficult for unauthorized personnel to open the locking mechanism 7, thus ensuring high security.

[0021] Working Principle: When using this easily deployable double-sided tipping semi-trailer, firstly, hydraulic cylinder 5 is activated, its piston rod extends upwards, and the cylinder body itself rotates adaptively along the movement trajectory, causing the wing doors 3 to rotate synchronously. The two wing doors 3 are independently driven by their respective hydraulic cylinders 5, enabling independent opening on one side and meeting the flexibility requirements of different operating scenarios. When the wing doors 3 rotate upwards to the horizontally deployed state, loading and unloading operations can be performed. After loading and unloading are completed, the hydraulic cylinder 5 reverses its direction, causing the wing doors 3 to rotate downwards to the closed state. At this point, the end of the insert rod 72 is inserted into the connecting seat 73, and the limiting block 77 automatically engages with the insert rod 72 under the elastic potential energy of the spring 75, achieving mechanical locking of the insert rod 72 and thus completing the closing and positioning of the wing doors 3. When the wing door 3 needs to be opened again, the power control button of the electromagnet block 76 needs to be operated to energize it and generate a magnetic attraction effect, which drives the limit block 77 to overcome the elastic force of the spring 75 and move upward, releasing the locking engagement with the insertion rod 72. At this time, the insertion rod 72 can be easily removed, and the wing door 3 returns to the openable state. The entire locking mechanism 7 has reliable safety protection performance.

[0022] Example 2: Refer to Figure 2 and Figure 4In another preferred embodiment of this utility model, based on embodiment 1, an electromagnetic lock 8 is fixedly installed on the bottom surface of the base plate 100 that is in contact with the lower end of the wing door 3. The electromagnetic lock 8 is a prior art structure, and its control button is integrated into the vehicle body operation panel. Through electromagnetic adsorption, the wing door 3 and the base plate 100 can be quickly attached and fixed, and the operation response is rapid. The locking mechanism 7 forms a mechanical locking and positioning for the lower end of the wing door 3. Through rigid constraint, it effectively attenuates the vibration amplitude between the wing door 3 and the base plate 100, avoiding the weakening of the adsorption force due to gaps in the adsorption surface of the electromagnetic lock 8 caused by severe vibration, thereby reducing the wear and tear of the electromagnetic lock from frequent start-stop and extending its service life.

[0023] Example 3: Reference Figure 1-2 As another preferred embodiment of this utility model, based on embodiment 1 or embodiment 2, an elastic buffer pad is fixedly installed on the surface of the upper end of the wing door 3 that is in contact with the carriage 2. The elastic buffer pad is made of rubber structure and is relatively thin, so it will not affect the normal opening and closing of the wing door 3. The elastic buffer not only reduces the noise generated when the wing door 3 is closed, but also improves the sealing effect between the wing door 3 and the carriage 2.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-sided tipping self-unloading semi-trailer box structure that is easy to unfold, comprising a bottom plate (100), characterized in that, A carriage (2) is fixedly installed on the upper surface of the base plate (100). Wing doors (3) are hinged to the top of the carriage (2). Rotary seats (4) are fixedly installed on the front and rear sides of the upper end of the carriage (2). A hydraulic cylinder (5) is rotatably connected to the upper end of the rotating seat (4). An installation plate (6) is fixedly installed on the inner side of the wing door (3). The end of the hydraulic cylinder (5) is rotatably connected to the installation plate (6). Locking mechanisms (7) that cooperate with each other are fixedly connected between the two sides of the base plate (100) and the bottom of the wing door (3).

2. The easily deployable double-sided tipping self-unloading semi-trailer box structure according to claim 1, characterized in that, The locking mechanism (7) includes a fixed frame (71), the upper end of which is fixedly installed at the bottom of the wing door (3). A connecting seat (73) is fixedly installed on the lower surface of the base plate (100). A plug rod (72) is connected through the inside of the fixed frame (71). The end of the plug rod (72) extends into the inside of the connecting seat (73). A fixed box (74) is fixedly installed inside the base plate (100). A limit block (77) is slidably arranged inside the fixed box (74). One end of the limit block (77) is connected to the inner wall of the fixed box (74) through a spring (75), and the other end passes through the bottom of the fixed box (74) and extends into the inside of the plug rod (72). An electromagnet block (76) is also fixedly arranged between the inner wall of the fixed box (74) and the limit block (77).

3. The easily deployable double-sided tipping self-unloading semi-trailer box structure according to claim 2, characterized in that, The insertion rod (72) is a structure with a square cross-section.

4. The easily deployable double-sided tipping self-unloading semi-trailer box structure according to claim 3, characterized in that, The lower end of the fixing frame (71) is bent toward the side closer to the connecting seat (73).

5. The easily deployable double-sided tipping self-unloading semi-trailer box structure according to claim 4, characterized in that, Multiple sets of the fixing frame (71) and the connecting seat (73) are provided.

6. The easily deployable double-sided tipping self-unloading semi-trailer box structure according to claim 1, characterized in that, An electromagnetic lock (8) is fixedly installed on the bottom surface of the base plate (100) that is in contact with the lower end of the wing door (3).

7. The easily deployable double-sided tipping self-unloading semi-trailer box structure according to claim 1, characterized in that, An elastic buffer pad is fixedly installed on the upper end of the wing door (3) and the surface of the carriage (2) that is in contact with each other. The elastic buffer pad is made of rubber structure.

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