Trailer carriage structure convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of trailer carriages, and provides a trailer carriage structure convenient to disassemble and assemble, which comprises a bottom beam, a plurality of mounting seats, a plurality of upright posts, a plurality of sliding rails, a plurality of sliding rods, tarpaulin, a plurality of springs, a plurality of fixing pins and a plurality of pull ropes, the mounting seats are arranged on the bottom beam, the upright posts are arranged on the mounting seats, and the sliding rails are simultaneously arranged on the upright posts. The two sliding rails are symmetrically arranged and located on the two sides of the bottom beam respectively, the two sides of the sliding rods are slidably arranged on the two sliding rails respectively, the tarpaulin is laid on the multiple sliding rods, fixing holes are formed in the sliding rails, the fixing pins are slidably arranged on the sliding rods and used for entering and exiting the fixing holes, and the two ends of the springs act on the sliding rods and the fixing pins respectively. The fixing pins are used for providing force for the fixing pins to enter the fixing holes, the two fixing pins are symmetrically arranged, and the two ends of the pull rope are connected with the two fixing pins correspondingly. By means of the technical scheme, the problems that in the prior art, the upper portion of a trailer compartment is open, goods cannot be protected easily, and loading is inconvenient due to the closed upper portion are solved.

Description

Technical Field

[0001] This utility model relates to the field of trailer body technology, specifically to a trailer body structure that is easy to assemble and disassemble. Background Technology

[0002] Currently, many trailers use an open top structure for easy loading and unloading. While this structure facilitates loading and unloading, it doesn't provide adequate protection for the cargo during transport. For example, in severe weather conditions such as heavy rain or sandstorms, the cargo is easily corroded and damaged. Furthermore, during daily driving, dust and debris from the road can easily enter the trailer, affecting the quality of the goods.

[0003] To compensate for the insufficient protection of open-structure trailers, protective layers, such as tarpaulins, need to be manually laid on top of the trailer when transporting goods with high environmental requirements. This undoubtedly increases loading and unloading time and labor costs. For enclosed trailers, due to the closed top, goods can only be loaded from the rear. This loading method has little impact on small items, but it becomes very difficult to load large, irregularly shaped goods, such as large machinery and building materials, from the rear. It not only requires specialized lifting equipment, but is also easily limited by the internal space and structure of the trailer during loading, resulting in low loading efficiency.

[0004] The existing technology has not adequately addressed the above problems, causing difficulties for the normal operation of this field. Therefore, there is an urgent need for a trailer body structure that is easy to assemble and disassemble to solve these problems. Utility Model Content

[0005] This utility model proposes a trailer body structure that is easy to assemble and disassemble, solving the problem in related technologies that the open top of the trailer body makes it difficult to protect goods, while the closed top makes it inconvenient to load goods.

[0006] The technical solution of this utility model is as follows: A trailer body structure that is easy to assemble and disassemble includes a bottom beam, a mounting base, a column, a slide rail, a slide rod, a tarpaulin, a spring, a fixing pin, and a pull rope. The mounting base is disposed on the bottom beam, and the column is disposed on the mounting base. There are multiple mounting bases and columns. The slide rail is disposed on multiple columns. Two slide rails are symmetrically arranged and located on both sides of the bottom beam. The slide rod is slidably disposed on two slide rails on both sides. There are multiple slide rods. The tarpaulin is laid on multiple slide rods. The slide rail has a fixing hole. The fixing pin is slidably disposed on the slide rod and is used to enter and exit the fixing hole. The two ends of the spring act on the slide rod and the fixing pin respectively to provide force for the fixing pin to enter the fixing hole. There are two fixing pins symmetrically arranged. The two ends of the pull rope are respectively connected to the two fixing pins.

[0007] Optionally, the slide bar has a top support in the middle, which contacts the bottom surface of the tarpaulin to make the tarpaulin triangular.

[0008] Optionally, the width of the tarpaulin is greater than the width of the bottom beam.

[0009] Optionally, the column includes an outer cylinder and an inner column, the outer cylinder is disposed on the mounting base, the column is slidably disposed inside the outer cylinder, and the slide rail is disposed on the top of the column.

[0010] Optionally, both the outer cylinder and the inner column have multiple locking holes and a locking pin, which is inserted into the locking holes on both the outer cylinder and the inner column to lock the inner column.

[0011] Optionally, the mounting base and the outer cylinder are fixedly connected by bolts.

[0012] Optionally, the inner column surface is provided with a receiving groove along the length direction, and also includes a support plate and a grid plate. The support plate is rotatably disposed in the receiving groove, and the two ends of the grid plate are detachably connected to the support plates on two adjacent inner columns.

[0013] Optionally, the support plate and the grid plate have corresponding locking holes for inserting locking pins.

[0014] Optionally, it may also include telescopic outriggers, which are disposed on the bottom surface of the bottom beam.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The bottom beam serves as the foundation of the entire carriage structure. Mounting brackets are securely mounted on the bottom beam, with multiple brackets evenly distributed to provide stable support for the uprights. The uprights, also mounted on the brackets, are multiple in number, ensuring the stability of the carriage structure. Two symmetrically arranged slide rails are simultaneously mounted on multiple uprights, located on either side of the bottom beam. Multiple sliding rods are slidably mounted on the two slide rails on both sides, and a tarpaulin is laid on these sliding rods to form a protective canopy above the carriage.

[0017] The slide rail has fixing holes, and the slide rod has a fixing pin that slides along it. Two ends of a spring act on the slide rod and the fixing pin respectively, ensuring the spring always provides force for the fixing pin to engage with the fixing holes and keeping the tarpaulin secure when closed. Two fixing pins are symmetrically arranged, and each end of the pull rope is connected to one of the two fixing pins.

[0018] When loading cargo, use a long hook or similar tool to hook the pull rope. When the middle of the rope is pulled, the two ends overcome the spring force, pulling the two fixing pins out of their fixing holes, thus releasing the tarpaulin. Continue pulling the rope forward; the slide bar moves along the rail, gradually raising the tarpaulin to make room for loading. At this point, cargo can be easily loaded from above and at the rear of the vehicle. Large, irregularly shaped items can also be loaded relatively easily.

[0019] After loading is complete, push the sliding rod to slide along the rail, allowing the tarpaulin to cover the cargo compartment. During this process, when the sliding rod slides to the fixing hole, the spring force pushes the fixing pin into the fixing hole, securing the tarpaulin and providing good protection for the cargo.

[0020] This easily assembled and disassembled trailer structure offers numerous advantages. Firstly, the sliding bar and rail design allows for easy raising and lowering of the tarpaulin, simplifying operation and significantly improving loading and unloading efficiency. During loading, the tarpaulin's retraction creates space, facilitating the loading of both small and large items and reducing loading costs. Secondly, after loading, closing the tarpaulin provides excellent protection for the goods, effectively preventing damage from harsh weather, dust, and debris during transport, thus ensuring cargo quality. Furthermore, the fixing pins and springs ensure the stability of the tarpaulin in the closed state, preventing accidental opening during transport. Attached Figure Description

[0021] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0022] Figure 1 This is a schematic diagram of an angle of a trailer body structure that is easy to assemble and disassemble;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a schematic diagram of a trailer body structure that is easy to assemble and disassemble from another angle.

[0025] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0026] In the diagram: 1. Bottom beam, 2. Mounting base, 3. Column, 4. Slide rail, 5. Slide rod, 6. Canopy, 7. Spring, 8. Fixing pin, 9. Pull rope, 10. Fixing hole, 11. Top support, 12. Outer cylinder, 13. Inner column, 14. Locking hole one, 15. Locking pin one, 16. Receiving groove, 17. Support plate, 18. Grating plate, 19. Locking hole two, 20. Locking pin two, 21. Telescopic outrigger. Detailed Implementation

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Reference Figures 1-4This is the first embodiment of the present invention, which proposes a trailer body structure that is easy to assemble and disassemble, including a bottom beam 1, a mounting base 2, a column 3, a slide rail 4, a sliding rod 5, a tarpaulin 6, a spring 7, a fixing pin 8, and a pull rope 9. The mounting base 2 is provided on the bottom beam 1, and the column 3 is provided on the mounting base 2. There are multiple mounting bases 2 and columns 3. The slide rail 4 is provided on multiple columns 3. Two slide rails 4 are symmetrically arranged and are located on both sides of the bottom beam 1. The two sides of the sliding rod 5 are slidably arranged on the two slide rails 4. There are multiple sliding rods 5. The tarpaulin 6 is laid on the multiple sliding rods 5. The slide rail 4 has a fixing hole 10. The fixing pin 8 is slidably arranged on the sliding rod 5 and is used to enter and exit the fixing hole 10. The two ends of the spring 7 act on the sliding rod 5 and the fixing pin 8 respectively to provide force for the fixing pin 8 to enter the fixing hole 10. There are two fixing pins 8 symmetrically arranged. The two ends of the pull rope 9 are connected to the two fixing pins 8 respectively.

[0032] In this embodiment, the bottom beam 1 serves as the foundation of the entire carriage structure. Mounting seats 2 are securely mounted on the bottom beam 1, with multiple mounting seats 2 evenly distributed to provide stable support for the uprights 3. The uprights 3 are mounted on the mounting seats 2, and there are also multiple uprights 3 to ensure the stability of the carriage structure. Two symmetrically arranged slide rails 4 are simultaneously mounted on multiple uprights 3, located on both sides of the bottom beam 1. Multiple sliding rods 5 are slidably mounted on the two slide rails 4 on both sides, and a tarpaulin 6 is laid on these sliding rods 5 to form a protective canopy above the carriage.

[0033] A fixing hole 10 is provided on the slide rail 4, and a fixing pin 8 is slidably mounted on the slide rod 5. The two ends of the spring 7 act on the slide rod 5 and the fixing pin 8 respectively. The spring 7 always provides the fixing pin 8 with force to enter the fixing hole 10, ensuring that the tarpaulin 6 is fixed in the closed state. There are two fixing pins 8 symmetrically arranged, and the two ends of the pull rope 9 are connected to the two fixing pins 8 respectively.

[0034] When loading cargo, use a long hook or similar tool to hook the pull rope 9. When the middle of the pull rope 9 is pulled, both ends overcome the force of the spring 7, pulling the two fixing pins 8 out of the fixing holes 10, thus releasing the tarpaulin 6 from its fixation. Continue pulling the pull rope 9 forward; the slide bar 5 slides on the slide rail 4, gradually raising the tarpaulin 6 to make room for loading. At this point, cargo can be easily loaded from above and at the rear of the vehicle. Large, irregularly shaped items can also be loaded relatively easily.

[0035] After loading is completed, push the slide bar 5 to slide on the slide rail 4, so that the tarpaulin 6 covers the top of the carriage. During this process, when the slide bar 5 slides to the position of the fixing hole 10, the force of the spring 7 pushes the fixing pin 8 into the fixing hole 10, thereby fixing the tarpaulin 6 and providing good protection for the goods.

[0036] This easily detachable trailer body structure offers numerous advantages. First, the design of the sliding rod 5 and sliding rail 4 allows for easy raising and lowering of the tarpaulin 6, simplifying operation and significantly improving loading and unloading efficiency. During loading, the tarpaulin 6 is retracted to create space, making it easier to load both small and large items, thus reducing loading costs. Second, after loading, closing the tarpaulin 6 provides excellent protection for the goods, effectively preventing damage from harsh weather, dust, and debris during transportation, ensuring the quality of the goods. Furthermore, the design of the fixing pin 8 and spring 7 ensures the stability of the tarpaulin 6 in the closed state, preventing accidental opening during transportation.

[0037] Furthermore, the slide bar 5 has a top support 11 in the middle, which contacts the bottom surface of the tarpaulin 6 to make the tarpaulin 6 triangular.

[0038] Furthermore, the width of the tarpaulin 6 is greater than the width of the bottom beam 1.

[0039] In this embodiment, during actual use, when rainwater falls onto the tarpaulin 6, because the tarpaulin 6 is supported by the top support 11 into a triangular shape, the rainwater will quickly flow to both sides and will not accumulate on the tarpaulin 6. The design that the width of the tarpaulin 6 is greater than the width of the bottom beam 1 allows the rainwater flowing down from both sides of the tarpaulin 6 to stay away from the bottom beam 1, preventing the bottom beam 1 from being eroded by rainwater, thereby protecting the stability and service life of the carriage structure.

[0040] Furthermore, the column 3 includes an outer cylinder 12 and an inner column 13. The outer cylinder 12 is disposed on the mounting base 2, the column 3 is slidably disposed inside the outer cylinder 12, and the slide rail 4 is disposed on the top of the column 3.

[0041] Furthermore, both the outer cylinder 12 and the inner column 13 have multiple locking holes 14, and also include a locking pin 15. The locking pin 15 is inserted into the locking holes 14 on both the outer cylinder 12 and the inner column 13 to lock the inner column 13.

[0042] In this embodiment, the column 3 consists of an outer cylinder 12 and an inner column 13. The outer cylinder 12 is mounted on the mounting base 2, and the inner column 13 can slide inside the outer cylinder 12. A slide rail 4 is provided on the top of the inner column 13. When it is necessary to adjust the height of the column 3, this is achieved by adjusting the length of the inner column 13 protruding from the outer cylinder 12. After adjusting to a suitable height, the locking pin 15 is simultaneously inserted into the corresponding locking holes 14 on both the outer cylinder 12 and the inner column 13, thereby locking the inner column 13 at the current height.

[0043] For example, when loading taller goods, the inner column 13 can be pulled upwards by a certain length, increasing the height of the column 3, and thus raising the height of the slide rail 4 and the tarpaulin 6, providing more carrying space for the goods. When it is not necessary to load taller goods, the inner column 13 can be retracted, reducing the height of the column 3 and making the carriage structure more compact.

[0044] This design offers significant advantages. First, the height of the upright 3 can be flexibly adjusted to meet the height requirements of different goods, thereby adjusting the height of the slide rail 4 and the tarpaulin 6, increasing the adaptability of the trailer's load-bearing space. Whether loading tall, large goods or short, small goods, the most suitable loading space can be found by adjusting the height of the upright 3, improving the utilization efficiency of the trailer trailer. Second, the design of the locking hole 14 and locking pin 15 ensures that the inner upright 13 can be stably locked in the appropriate position after being adjusted to the appropriate height, guaranteeing the stability and safety of the trailer structure during transportation. Finally, this adjustable-height upright 3 design provides users with more choices and convenience, meeting the needs of different transportation scenarios.

[0045] Furthermore, the mounting base 2 and the outer cylinder 12 are fixedly connected by bolts.

[0046] In this embodiment, the mounting base 2 and the outer cylinder 12 of the column 3 are fixedly connected by bolts. During actual installation, the outer cylinder 12 is placed on the mounting base 2, and the bolts are tightened to secure it firmly. When maintenance or repair is required, the outer cylinder 12 can be removed from the mounting base 2 simply by loosening the bolts. If the column 3 is found to be damaged or needs replacement, the outer cylinder 12 can be easily removed from the mounting base 2 for repair or replacement without the complex cutting and re-welding work required by traditional welding methods.

[0047] Furthermore, the inner column 13 has a receiving groove 16 along its length, and also includes a support plate 17 and a grid plate 18. The support plate 17 is rotatably disposed in the receiving groove 16, and the two ends of the grid plate 18 are detachably connected to the support plate 17 on two adjacent inner columns 13.

[0048] Furthermore, the support plate 17 and the grid plate 18 have corresponding locking holes 19 for inserting locking pins 20.

[0049] In this embodiment, a receiving groove 16 is formed on the surface of the inner column 13 along its length. The support plate 17 is rotatably disposed within the receiving groove 16. When it is necessary to slide the inner column 13 into the outer cylinder 12 to reduce the height of the column 3, the support plate 17 can be rotated back into the receiving groove 16 without affecting the movement of the inner column 13. When the inner column 13 is pulled out from the outer cylinder 12 to increase the height of the column 3, the support plate 17 is rotated out of the receiving groove 16 and unfolded. At this time, the two ends of the grid plate 18 are respectively aligned with the support plates 17 on the two adjacent inner columns 13, so that the second locking hole 19 on the grid plate 18 is aligned with the second locking hole 19 on the support plate 17, and then the second locking pin 20 is inserted to achieve a fixed connection between the grid plate 18 and the support plate 17. In this way, after the height of the column 3 increases, the grid plate 18 can provide additional support for the pulled-out inner column 13, ensuring the strength of the overall structure.

[0050] First, the retractable support plate 17 and detachable grating plate 18 provide enhanced support for the uprights 3 when needed, improving the stability and load-bearing capacity of the trailer structure under the condition of high uprights 3. Second, when the grating plate 18 is not needed, the support plate 17 can be retracted into the receiving slot 16, without occupying extra space and maintaining the simplicity of the trailer structure. Furthermore, the combined use of locking holes 19 and locking pins 20 ensures a firm and reliable connection between the grating plate 18 and the support plate 17, improving the overall structural safety. Finally, this design provides a flexible structural adjustment method for the trailer trailer under different loading requirements, meeting the requirements of various transportation scenarios.

[0051] Furthermore, it also includes a telescopic support leg 21, which is disposed on the bottom surface of the bottom beam 1.

[0052] In this embodiment, when the trailer is separated from the tractor, the telescopic outriggers 21 provide stable support for the trailer, preventing it from tilting or tipping over. When the trailer is stationary, without the support of the telescopic outriggers 21, the tires alone are insufficient for stability, especially on uneven ground or under external forces, making it prone to tilting. The telescopic outriggers 21 extend to the ground, using a robust structure to firmly support the trailer, ensuring its stability when parked.

[0053] When a trailer needs to load or unload cargo, the telescopic outriggers 21 can bear part of the weight of the trailer and cargo, reducing the burden on the tires and making the trailer more stable during loading and unloading. During loading and unloading, the weight of the cargo puts significant pressure on the trailer; if only the tires are supported, it may lead to tire deformation or even a blowout. The telescopic outriggers 21 can distribute some of the weight, protecting the tires and ensuring safety during loading and unloading.

[0054] 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 trailer body structure that is easy to assemble and disassemble, characterized in that, The system includes a base beam (1), mounting base (2), column (3), slide rail (4), sliding rod (5), tarpaulin (6), spring (7), fixing pin (8), and pull rope (9). The mounting base (2) is located on the base beam (1), and the column (3) is located on the mounting base (2). There are multiple mounting bases (2) and columns (3). The slide rail (4) is located on multiple columns (3). There are two slide rails (4) symmetrically arranged on both sides of the base beam (1). The sliding rod (5) is slidably mounted on two of the columns (3) on both sides. On the rail (4), there are multiple sliding rods (5), and the tarpaulin (6) is laid on the multiple sliding rods (5). The rail (4) has a fixing hole (10). The fixing pin (8) is slidably disposed on the sliding rod (5) for entering and exiting the fixing hole (10). The two ends of the spring (7) act on the sliding rod (5) and the fixing pin (8) respectively to provide the force for the fixing pin (8) to enter the fixing hole (10). There are two fixing pins (8) symmetrically arranged. The two ends of the pull rope (9) are respectively connected to the two fixing pins (8).

2. The trailer body structure for easy assembly and disassembly according to claim 1, characterized in that, The slide bar (5) has a top support (11) in the middle, which contacts the bottom surface of the tarpaulin (6) to make the tarpaulin (6) triangular.

3. The trailer body structure for easy assembly and disassembly according to claim 2, characterized in that, The width of the tarpaulin (6) is greater than the width of the bottom beam (1).

4. The trailer body structure for easy assembly and disassembly according to claim 1, characterized in that, The column (3) includes an outer cylinder (12) and an inner column (13). The outer cylinder (12) is mounted on the mounting base (2). The column (3) is slidably mounted inside the outer cylinder (12). The slide rail (4) is located on the top of the column (3).

5. The trailer body structure for easy assembly and disassembly according to claim 4, characterized in that, Both the outer cylinder (12) and the inner column (13) have multiple locking holes (14) and also include a locking pin (15). The locking pin (15) is inserted into the locking holes (14) on both the outer cylinder (12) and the inner column (13) to lock the inner column (13).

6. The trailer body structure for easy assembly and disassembly according to claim 4, characterized in that, The mounting base (2) and the outer cylinder (12) are fixedly connected by bolts.

7. The trailer body structure for easy assembly and disassembly according to claim 4, characterized in that, The inner column (13) has a receiving groove (16) along its length direction, and also includes a support plate (17) and a grid plate (18). The support plate (17) is rotatably disposed in the receiving groove (16), and the two ends of the grid plate (18) are detachably connected to the support plate (17) on two adjacent inner columns (13).

8. The trailer body structure for easy assembly and disassembly according to claim 7, characterized in that, The support plate (17) and the grid plate (18) have corresponding locking holes (19) for inserting locking pins (20).

9. The trailer body structure for easy assembly and disassembly according to claim 1, characterized in that, It also includes telescopic outriggers (21), which are located on the bottom surface of the bottom beam (1).

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