A lightweight semi-trailer frame

Abstract

The present invention belongs to the technical field of semi-trailers, and the present invention discloses a lightweight semi-trailer frame; it includes a frame body, a top frame is fixedly connected to the top end of one side of the frame body, the top ends of both sides of the frame body are rotatably connected with first door panels through rotating shafts, the second door panel is rotatably connected through a rotating shaft on the side of the frame body away from the top frame, and a fixed sleeve is fixedly connected to the bottom of the frame body. By setting a fixing component in this device, when it is necessary to fix the position of the cylindrical goods, the rotating motor is started to drive the rotating shaft and the first gear to rotate, and the first gear drives the two groups of first racks, second racks, second gears, long rods, connecting blocks and fixing plates to operate simultaneously, so that the two groups of fixing plates can be turned towards the center at the same time. The two sides of the cylindrical goods can be fixed by turning the two groups of fixing plates towards the center, solving the problem that the cylindrical goods are likely to fall off when transported by the frame of the semi-trailer.

Description

Technical Field

[0001] The present invention relates to the technical field of semi-trailers, and more specifically, to a lightweight semi-trailer frame. Background Art

[0002] A semi-trailer is a vehicle tool specifically used for transporting goods, mainly composed of a tractor and a frame. The frame is the area for loading goods. Semi-trailers are mainly used for long-distance freight transportation and large cargo transportation, such as container transportation, transportation of bulk goods such as coal and ore, etc. They are very common in road transportation and are an important and indispensable tool in the logistics industry.

[0003] The frame of a semi-trailer is mainly composed of multiple groups of steel beams and door panels. By welding multiple groups of steel beams, the basic frame of the frame can be formed. Goods can be loaded on the vehicle board. By setting multiple groups of door panels, the stacking position of the goods can be determined when loading the goods, and at the same time, it is beneficial to improve the unloading efficiency of the goods when unloading.

[0004] In the prior art, when using the frame of a semi-trailer to transport cylindrical goods, since the cross-section of the cylindrical goods is circular, when loaded on the frame of the semi-trailer, the cylindrical goods are likely to slide. When the semi-trailer is driving, due to operations such as acceleration and braking of the semi-trailer, the cylindrical goods are likely to displace with inertia, and it is easy for the cylindrical goods to fall off. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention proposes a lightweight semi-trailer frame.

[0006] To achieve the above object, the present invention provides the following technical solution: A lightweight semi-trailer frame, including a frame body. At the top end of one side of the frame body, a top frame is fixedly connected. At the top ends of both sides of the frame body, a first door panel is rotatably connected through a rotating shaft. On the side of the frame body away from the top frame, a second door panel is rotatably connected through a rotating shaft. At the bottom of the frame body, a fixed sleeve is fixedly connected. The inner wall of the fixed sleeve is slidably connected with an axle. At both ends of the axle, wheels are fixedly connected. It further includes a fixing component for fixing cylindrical goods, the fixing component is arranged at the top end of the frame body. On both sides of the frame body, a water collection component for collecting rainwater is arranged. Below the frame body, a temperature reduction component for reducing the temperature of the wheel brake pads is arranged. On the side of the second door panel away from the frame body, a support component for facilitating unloading is arranged. At the bottom of the second door panel, a positioning component for fixing the position of the wheels is arranged.

[0007] Further, the fixing component includes a rotating motor, which is fixedly connected to the bottom of the vehicle frame body. The output end of the rotating motor is fixedly connected with a rotating shaft, which penetrates through the inner wall of the vehicle frame body. The top end of the rotating shaft is fixedly connected with a first gear, and a first rack is meshed with one side of the first gear. The side of the first rack away from the first gear is fixedly connected with a second rack, and the bottom of the second rack is fixedly connected with a sliding bar. A sliding groove is opened at the bottom of the inner wall of the vehicle frame body, and the sliding bar is slidably connected to the inner wall of the sliding groove. A second gear is meshed with the top end of the second rack, and a long rod is fixedly connected to the center of the second gear. A sleeve is fixedly connected to the top end of the inner wall of the vehicle frame body, and the long rod is rotatably connected to the inner wall of the sleeve. A connecting block is fixedly connected to the outer wall of the long rod, and a fixing plate is fixedly connected to the top end of the connecting block. An arc-shaped groove is arranged at the top end of the fixing plate, and a sealing pad is fixedly connected to one side of the fixing plate. Two groups of fixing components are provided and are symmetrically distributed on both sides of the first gear. An arc-shaped block is arranged at the top end of one side of the vehicle frame body.

[0008] Further, the water collecting component includes a water storage tank, which is fixedly connected to both sides of the vehicle frame body. An inclined groove is opened at the top end of the vehicle frame body, and a frame plate is arranged on the inner wall of the inclined groove. A plurality of square holes are opened at the top end of the frame plate, and a filter layer is filled in the inner wall of the frame plate. Filter holes are opened at the bottom of the frame plate. A circular pipe is fixedly connected to the bottom of the inclined groove, and the bottom of the circular pipe is fixedly connected to the top end of the water storage tank. A water outlet pipe is fixedly connected to the bottom of the water storage tank, and a valve is fixedly connected to the outer wall of the water outlet pipe.

[0009] Further, the cooling component includes a transmission pipe, which is fixedly connected to the bottom of the water storage tank. The bottom of the transmission pipe is fixedly connected with a square box, which is fixedly connected to the bottom of the vehicle frame body. A water spraying pipe is fixedly connected to the bottom of the square box, and the opening of the water spraying pipe faces the brake pads of the wheels. An L-shaped plate is fixedly connected to the side of the square box away from the second door panel. A sliding rod is slidably connected to one side of the L-shaped plate. A circular plate is fixedly connected to the outer wall of the sliding rod, and the circular plate is arranged on one side of the square box. A spring is fixedly connected to the side of the circular plate away from the square box, and the other end of the spring is fixedly connected to one side of the L-shaped plate. The end of the sliding rod away from the L-shaped plate extends into the inner wall of the square box. A blocking block is fixedly connected to the end of the sliding rod extending into the inner wall of the square box, and a backing plate is fixedly connected to the bottom of the blocking block. The blocking block and the backing plate are arranged at the top end of the water spraying pipe.

[0010] Further, the supporting component includes a bottom block, which is rotatably connected to the side of the second door panel away from the vehicle frame body through a rotating shaft. A supporting plate is fixedly connected to one side of the bottom block, and the top end of the supporting plate is inclined. The top end of the supporting plate is closely attached to the bottom of the second door panel. Two installation grooves are opened on both sides of the bottom block, and magnets are fixedly connected to the inner walls of the installation grooves.

[0011] Further, the positioning component includes a first connecting rod, which is rotatably connected to the bottom of the second door panel. One end of the first connecting rod away from the second door panel is rotatably connected to a second connecting rod, and one end of the second connecting rod away from the first connecting rod is rotatably connected to a stabilizing block. The stabilizing block is arranged on one side of the wheel. A sliding frame is fixedly connected to the bottom of one side of the vehicle frame body. One side of the stabilizing block is fixedly connected to a sliding block, and the sliding block is slidably connected to the inner wall of the sliding frame. The shape of the sliding block is square. One side of the sliding block away from the stabilizing block is fixedly connected to a limiting piece, and the limiting piece is arranged on one side of the sliding frame. The sliding frame is inclined.

[0012] The technical effects and advantages of a lightweight semi-trailer frame of the present invention:

[0013] (1) By setting the fixing component, when it is necessary to fix the position of the cylindrical goods, the rotating motor is started to drive the rotating shaft and the first gear to rotate, and the first gear drives the two groups of first racks, second racks, second gears, long rods, connecting blocks and fixing plates to run simultaneously, so that the two fixing plates can be turned towards the center at the same time. The two fixing plates can be turned towards the center to fix both sides of the cylindrical goods, solving the problem that the cylindrical goods are likely to fall off when transported by the frame of the semi-trailer.

[0014] (2) By setting the water collection component, rainwater can be collected and filtered in rainy days, and an emergency water source can be provided for the driver during long-distance transportation. By setting the cooling component, the water collected in the water storage tank can flow into the square box, and when the semi-trailer brakes during transportation, part of the water in the square box can flow out to cool the brake pads of the semi-trailer.

[0015] (3) By setting the support component, when loading and unloading goods, the second door panel can be turned over to make the support component provide stable support for the second door panel, so that the second door panel remains in a downward inclined state, which is beneficial to the loading and unloading of goods. By setting the positioning component, when the second door panel is turned downwards, the positioning component can fix the positions of the two rear wheels to prevent the vehicle from slipping during loading and unloading of goods. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall first sectional structure of the present invention.

[0018] Figure 3 is Figure 2 The enlarged structure schematic diagram of part A.

[0019] Figure 4 It is a schematic diagram of the bottom of the fixing component of the present invention.

[0020] Figure 5 Schematic diagram of the disassembly structure of the fixing component in the present invention.

[0021] Figure 6 Schematic diagram of a partial cross-section of the vehicle frame body in the present invention.

[0022] Figure 7 Schematic diagram of the overall second cross-section structure in the present invention.

[0023] Figure 8 is Figure 7 Enlarged structure diagram at position B of

[0024] Figure 9 Schematic diagram of the cross-section of the square box in the present invention.

[0025] Figure 10 Schematic diagram of the support component and the positioning component in the present invention.

[0026] In the figure:

[0027] 1. Vehicle frame body; 2. Top frame; 3. First door panel; 4. Second door panel; 5. Fixed sleeve; 6. Axle; 7. Wheel; 8. Rotating motor; 9. First gear; 10. First rack; 11. Second rack; 12. Slide bar; 13. Slide groove; 14. Second gear; 15. Long rod; 16. Connecting block; 17. Fixed plate; 18. Sleeve; 19. Sealing gasket; 20. Arc-shaped block; 21. Frame plate; 22. Square hole; 23. Round pipe; 24. Water storage tank; 25. Water outlet pipe; 26. Valve; 27. Transmission pipe; 28. Square box; 29. Sprinkler pipe; 30. L-shaped plate; 31. Slide rod; 32. Spring; 33. Round plate; 34. Stopper; 35. Bottom block; 36. Support plate; 37. Installation groove; 38. Magnet; 40. First connecting rod; 42. Second connecting rod; 43. Stabilizing block; 44. Slide frame; 45. Slide block. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] Refer to Figure 1-10, A lightweight semi-trailer frame, including a frame body 1. At the top of one side of the frame body 1, a top frame 2 is fixedly connected. At the top of both sides of the frame body 1, a first door panel 3 is rotatably connected through a rotating shaft. On the side of the frame body 1 away from the top frame 2, a second door panel 4 is rotatably connected through a rotating shaft. At the bottom of the frame body 1, a fixed sleeve 5 is fixedly connected. The inner wall of the fixed sleeve 5 is slidably connected with an axle 6. At both ends of the axle 6, wheels 7 are fixedly connected. It also includes a fixing component for fixing cylindrical goods, the fixing component is arranged at the top of the frame body 1. A water collection component for collecting rainwater is arranged on both sides of the frame body 1. A temperature reduction component for reducing the temperature of the brake pads of the wheels 7 is arranged below the frame body 1. A support component for facilitating unloading is arranged on the side of the second door panel 4 away from the frame body 1. A positioning component for fixing the position of the wheels 7 is arranged at the bottom of the second door panel 4.

[0031] To solve the problem that the cylindrical goods are likely to fall off when transported by the frame of the semi-trailer. When loading cylindrical goods, the first door panel 3 and the second door panel 4 can be flipped so that the first door panel 3 and the second door panel 4 are opened. Then, the cylindrical goods are hoisted or transported to the top of the frame body 1. By setting the fixing component, after the cylindrical goods are placed in the designated position, the position of the cylindrical goods can be fixed, thereby preventing the cylindrical goods from shifting during transportation. By setting the water collection component, rainwater can be collected and filtered during rainy days, which can provide emergency water sources for the driver during long-distance transportation. By setting the temperature reduction component, when the semi-trailer brakes during transportation, the brake pads of the semi-trailer can be cooled. By setting the support component, when loading and unloading cylindrical goods, by flipping the second door panel 4, the support component can be flipped downward to the ground and provide support for the second door panel 4, so that the second door panel 4 maintains a downward inclined state, which is conducive to the loading and unloading of goods. By setting the positioning component, when the second door panel 4 is flipped downward, the position of the two groups of wheels 7 at the rear can be fixed by the positioning component to prevent the vehicle from slipping during loading and unloading of goods.

[0032] Refer to Figure 3-6, the fixing component includes a rotating motor 8, which is fixedly connected to the bottom of the vehicle frame body 1. The output end of the rotating motor 8 is fixedly connected with a rotating shaft, which penetrates through the inner wall of the vehicle frame body 1. The top end of the rotating shaft is fixedly connected with a first gear 9. One side of the first gear 9 is meshed with a first rack 10. The side of the first rack 10 away from the first gear 9 is fixedly connected with a second rack 11. The bottom of the second rack 11 is fixedly connected with a slide bar 12. A chute 13 is opened at the bottom of the inner wall of the vehicle frame body 1. The slide bar 12 is slidably connected to the inner wall of the chute 13. The top end of the second rack 11 is meshed with a second gear 14. The center of the second gear 14 is fixedly connected with a long rod 15. The top end of the inner wall of the vehicle frame body 1 is fixedly connected with a sleeve 18. The long rod 15 is rotatably connected to the inner wall of the sleeve 18. A connecting block 16 is fixedly connected to the outer wall of the long rod 15. The top end of the connecting block 16 is fixedly connected with a fixing plate 17. An arc-shaped groove is arranged at the top end of the fixing plate 17. A sealing pad 19 is fixedly connected to one side of the fixing plate 17. Two sets of fixing components are provided and are symmetrically distributed on both sides of the first gear 9. An arc-shaped block 20 is arranged at the top end of one side of the vehicle frame body 1.

[0033] When it is necessary to fix the position of the cylindrical goods, the cylindrical goods can be placed on the top of the vehicle frame body 1 by means of hoisting and moved to the top of the arc-shaped block 20. The top of the arc-shaped block 20 is conducive to fixing the position of the cylindrical goods. Then, the rotating motor 8 is started, and the rotating shaft is driven to rotate by the rotating motor 8. When the rotating shaft rotates, it will drive the first gear 9 at the top to rotate. When the first gear 9 rotates, it will drive the two sets of first racks 10 meshed on both sides to move in opposite directions respectively. When the first rack 10 moves, it will drive the second rack 11 arranged on one side to move together. By arranging a slide bar 12 at the bottom of the second rack 11, the slide bar 12 can be driven to slide on the inner wall of the chute 13 when the second rack 11 moves, so as to limit the moving tracks of the first rack 10 and the second rack 11. When the second rack 11 moves, it will drive the second gear 14 meshed at the top to rotate. When the second gear 14 rotates, it will drive the long rod 15 to rotate. By arranging the sleeve 18, the position of the long rod 15 can be set on the inner wall of the vehicle frame body 1. When the long rod 15 rotates, it will drive the connecting block 16 and the fixing plate 17 on one side to rotate together, so that the fixing plate 17 turns upward. The two sets of first racks 10, second racks 11, second gears 14, long rods 15, connecting blocks 16 and fixing plates 17 will be driven by one set of first gears 9 at the same time, so that the two sets of fixing plates 17 can turn towards the center at the same time, and the two sides of the cylindrical goods can be fixed by the turning of the two sets of fixing plates 17.

[0034] Refer to Figure 7-8, the water collection assembly includes a water storage tank 24, the water storage tank 24 is fixedly connected to both sides of the vehicle frame body 1, a sloping groove is opened at the top end of the vehicle frame body 1, a frame plate 21 is arranged on the inner wall of the sloping groove, a number of groups of square holes 22 are opened at the top end of the frame plate 21, a filter layer is filled in the inner wall of the frame plate 21, a filter hole is opened at the bottom of the frame plate 21, a circular pipe 23 is fixedly connected to the bottom of the sloping groove, the bottom of the circular pipe 23 is fixedly connected to the top end of the water storage tank 24, a water outlet pipe 25 is fixedly connected to the bottom of the water storage tank 24, and a valve 26 is fixedly connected to the outer wall of the water outlet pipe 25.

[0035] During rainy days, precipitation will flow into the frame plate 21 through the sloping groove. By arranging multiple groups of square holes 22 at the top end of the frame plate 21, larger impurities can be isolated through the square holes 22. After the water flows into the frame plate 21, the rainwater can be filtered through the filter layer in the frame plate 21. A number of groups of filter holes arranged at the bottom of the frame plate 21 can intercept smaller impurities in the frame plate 21. After the filtered rainwater passes through the filter holes, it will flow downward into the water storage tank 24 through the circular pipe 23. When the driver needs to use water, the valve 26 can be opened, and then the rainwater in the water storage tank 24 will flow downward through the water outlet pipe 25.

[0036] Refer to Figure 7-9 , the cooling assembly includes a transmission pipe 27, the transmission pipe 27 is fixedly connected to the bottom of the water storage tank 24, a square box 28 is fixedly connected to the bottom of the transmission pipe 27, the square box 28 is fixedly connected to the bottom of the vehicle frame body 1, a water spray pipe 29 is fixedly connected to the bottom of the square box 28, the opening of the water spray pipe 29 faces the brake pads of the wheels 7, an L-shaped plate 30 is fixedly connected to the side of the square box 28 away from the second door panel 4, a sliding rod 31 is slidably connected to one side of the L-shaped plate 30, a circular plate 33 is fixedly connected to the outer wall of the sliding rod 31, the circular plate 33 is arranged on one side of the square box 28, a spring 32 is fixedly connected to the side of the circular plate 33 away from the square box 28, the other end of the spring 32 is fixedly connected to one side of the L-shaped plate 30, one end of the sliding rod 31 away from the L-shaped plate 30 extends into the inner wall of the square box 28, a blocking block 34 is fixedly connected to the end of the sliding rod 31 extending into the inner wall of the square box 28, a backing plate is fixedly connected to the bottom of the blocking block 34, and the blocking block 34 and the backing plate are arranged at the top of the water spray pipe 29.

[0037] After the purified rainwater enters the water storage tank 24, the water in the water storage tank 24 will flow downward into the square box 28 through the transmission pipe 27 arranged at the bottom of the water storage tank 24. The baffle 34 arranged in the square box 28 can block the top end of the water spray pipe 29, so that the water flow cannot enter the water spray pipe 29 from the square box 28. When the semi-trailer brakes, the baffle 34 and the sliding rod 31 will slide to one side by inertia. When the baffle 34 slides to one side, it will move away from the top end of the water spray pipe 29. Thus, the water in the square box 28 can flow downward through the water spray pipe 29, making the water flow on the brake pads and performing water cooling treatment on the brake pads on the wheels 7. At the same time that the baffle 34 and the sliding rod 31 move to one side, the disc 33 on the outer wall of the sliding rod 31 will push the spring 32 to move to one side, thereby squeezing the spring 32. After the semi-trailer stops stably, the spring 32 will reset and push the disc 33 to move and reset to one side. When the disc 33 resets, it will drive the sliding rod 31 and the baffle 34 to reset to one side together, and move the baffle 34 to the top end of the water spray pipe 29. The top end of the water spray pipe 29 can be sealed through the backing plate at the bottom of the baffle 34.

[0038] Refer to Figure 10 As shown, the support assembly includes a bottom block 35. The bottom block 35 is rotatably connected to one side of the second door panel 4 away from the vehicle frame body 1 through a rotating shaft. One side of the bottom block 35 is fixedly connected with a support plate 36. The top end of the support plate 36 is inclined. The top end of the support plate 36 is closely attached to the bottom of the second door panel 4. Two sets of installation grooves 37 are opened on both sides of the bottom block 35. The inner wall of the installation groove 37 is fixedly connected with a magnet 38.

[0039] When loading and unloading goods, the second door panel 4 can be turned downward. When the second door panel 4 is turned downward, it will drive the bottom block 35 to turn downward together until the bottom of the bottom block 35 contacts the ground. When the bottom block 35 turns, it will drive the inclined support plate 36 on one side to turn together. When the bottom block 35 contacts the ground, the top end of the support plate 36 can abut against the bottom of the second door panel 4, so that the position of the second door panel 4 can be fixed, and a stable support can be formed in cooperation with the support plate 36 and the bottom block 35, which is beneficial for loading and unloading goods through the second door panel 4 and the bottom block 35. After the goods are loaded, the second door panel 4 and the bottom block 35 can be turned until the installation grooves 37 arranged on both sides of the bottom block 35 are turned to the top ends of the two second door panels 4, and the magnets 38 arranged in the installation grooves 37 can be adsorbed to the top ends of the second door panels 4, thereby fixing the position of the bottom block 35.

[0040] Refer to Figure 10, the positioning component includes a first connecting rod 40, the first connecting rod 40 is rotatably connected to the bottom of the second door panel 4, one end of the first connecting rod 40 away from the second door panel 4 is rotatably connected to a second connecting rod 42, one end of the second connecting rod 42 away from the first connecting rod 40 is rotatably connected to a stabilizing block 43, the stabilizing block 43 is arranged on one side of the wheel 7, the bottom of one side of the vehicle frame body 1 is fixedly connected with a sliding frame 44, one side of the stabilizing block 43 is fixedly connected with a sliding block 45, the sliding block 45 is slidably connected to the inner wall of the sliding frame 44, the shape of the sliding block 45 is square, one side of the sliding block 45 away from the stabilizing block 43 is fixedly connected with a limiting piece, the limiting piece is arranged on one side of the sliding frame 44, and the sliding frame 44 is arranged obliquely.

[0041] When the second door panel 4 flips downward, it can drive the first connecting rod 40 and the second connecting rod 42 to rotate together. Since the downward flipping of the second door panel 4 will cause the first connecting rod 40 and the second connecting rod 42 to lose the pulling force on the stabilizing block 43, the stabilizing block 43 can move downward by gravity. By arranging the sliding block 45 on one side of the stabilizing block 43, when the stabilizing block 43 moves downward, the sliding block 45 can slide in the sliding frame 44 to limit the moving track of the stabilizing block 43. By arranging the limiting piece on one side of the sliding block 45, the sliding block 45 can be prevented from slipping out of the sliding frame 44. The stabilizing block 43 slides obliquely downward along with the sliding block 45 until the stabilizing block 43 slides obliquely downward to one side of the wheel 7. The positions of the two groups of wheels 7 can be fixed by the stabilizing block 43 to prevent the semi-trailer from slipping during loading and unloading. When the second door panel 4 flips upward, it can drive the first connecting rod 40 and the second connecting rod 42 to flip together, and pull the stabilizing block 43 upward through the first connecting rod 40 and the second connecting rod 42. When the stabilizing block 43 is subjected to the pulling force, it will drive the sliding block 45 to slide in the sliding frame 44. Since the sliding block 45 is square, the stabilizing block 43 can be driven to move obliquely upward at the same time, so as to move the stabilizing block 43 away from one side of the wheel 7.

[0042] Working principle: To solve the problem that cylindrical goods are prone to fall off when transported on the frame of a semi-trailer. When loading cylindrical goods, the first door panel 3 and the second door panel 4 can be flipped to open the first door panel 3 and the second door panel 4. Then, the cylindrical goods are hoisted or transported to the top of the frame body 1. By starting the rotation motor 8 to drive the rotating shaft and the first gear 9 to rotate, when the first gear 9 rotates, it will drive two groups of first racks 10 engaged on both sides to move in opposite directions respectively. When the first racks 10 move, they will drive the second racks 11 to move together. When the second racks 11 move, they will drive the slide bars 12 to slide on the inner wall of the chute 13, so as to limit the movement trajectories of the first racks 10 and the second racks 11. When the second racks 11 move, they will drive the second gear 14 and the long rod 15 to rotate. When the long rod 15 rotates, it will drive the connecting block 16 and the fixing plate 17 to rotate together, causing the fixing plate 17 to flip upward. And the two groups of first racks 10, second racks 11, second gears 14, long rods 15, connecting blocks 16 and fixing plates 17 will be driven by one group of first gears 9 at the same time, so that the two fixing plates 17 can flip towards the center at the same time, thereby fixing both sides of the cylindrical goods to prevent the cylindrical goods from shifting during transportation. In rainy days, the precipitation will flow into the frame plate 21 through the inclined chute. By setting multiple square holes 22 at the top of the frame plate 21, larger impurities can be isolated through the square holes 22. After the water flows into the frame plate 21, the rainwater can be filtered through the filter layer in the frame plate 21. And several filter holes provided at the bottom of the frame plate 21 can intercept smaller impurities in the frame plate 21. After the filtered rainwater passes through the filter holes, it will flow downward into the water storage tank 24 through the round pipe 23. When the driver needs to use water, the valve 26 can be opened, and then the rainwater in the water storage tank 24 will flow downward through the water outlet pipe 25, which can provide an emergency water source for the driver during long-distance transportation. After the purified rainwater enters the water storage tank 24, it will flow downward into the square box 28 through the transmission pipe 27. The baffle 34 provided in the square box 28 can block the top of the water spray pipe 29, so that the water flow cannot enter the water spray pipe 29 from the square box 28. When the semi-trailer brakes, the baffle 34 and the slide rod 31 will slide to one side by inertia. When the baffle 34 slides to one side, it will move away from the top of the water spray pipe 29, so that the water in the square box 28 can flow downward through the water spray pipe 29, making the water flow on the brake pads and performing water cooling on the brake pads on the wheels 7. At the same time that the baffle 34 and the slide rod 31 move to one side, the round piece 33 on the outer wall of the slide rod 31 will push the spring 32 to move to one side, thereby squeezing the spring 32. After the semi-trailer stops stably, the spring 32 will reset and push the round piece 33 to move and reset to one side. When the round piece 33 resets, it will drive the slide rod 31 and the baffle 34 to reset to one side together, and move the baffle 34 to the top of the water spray pipe 29. The top of the water spray pipe 29 can be sealed by the cushion plate at the bottom of the baffle 34. When loading and unloading goods,The second door panel 4 can be flipped downward. When the second door panel 4 is flipped downward, it will drive the bottom block 35 to flip downward together until the bottom of the bottom block 35 contacts the ground. While the bottom block 35 is flipping, it will drive the inclined support plate 36 on one side to flip together, and when the bottom block 35 contacts the ground, the top end of the support plate 36 can be made to abut against the bottom of the second door panel 4, so that the position of the second door panel 4 can be fixed, and a stable support can be formed in cooperation with the support plate 36 and the bottom block 35, which is beneficial for loading and unloading goods through the second door panel 4 and the bottom block 35. When the second door panel 4 is flipped downward, it can drive the first connecting rod 40 and the second connecting rod 42 to rotate together. Since the downward flipping of the second door panel 4 will cause the first connecting rod 40 and the second connecting rod 42 to lose the pulling force on the stabilizing block 43, the stabilizing block 43 can move downward by gravity. By arranging a slider 45 on one side of the stabilizing block 43, when the stabilizing block 43 moves downward, the slider 45 can slide in the sliding frame 44 to limit the movement track of the stabilizing block 43. By arranging a limiting piece on one side of the slider 45, the slider 45 can be prevented from slipping out of the sliding frame 44. The stabilizing block 43 slides obliquely downward along with the slider 45 until the stabilizing block 43 slides obliquely downward to the side of the wheel 7. The positions of the two groups of wheels 7 can be fixed by the stabilizing block 43 to prevent the semi-trailer from slipping during loading and unloading. After the goods are loaded, the second door panel 4 can be flipped upward, thereby driving the first connecting rod 40 and the second connecting rod 42 to flip together, and pulling the stabilizing block 43 upward through the first connecting rod 40 and the second connecting rod 42. When the stabilizing block 43 is subjected to the pulling force, it will drive the slider 45 to slide in the sliding frame 44. Since the slider 45 is square, it can drive the stabilizing block 43 to move obliquely upward at the same time, so as to move the stabilizing block 43 away from the side of the wheel 7. When the second door panel 4 is flipped upward, it will drive the bottom block 35 to move upward together and make the bottom block 35 flip until the mounting grooves 37 provided on both sides of the bottom block 35 flip to the top ends of the two groups of second door panels 4, and the magnets 38 provided in the mounting grooves 37 can be used to adsorb to the top ends of the second door panels 4, thereby fixing the position of the bottom block 35.,

[0043] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims described above.

Claims

1. A lightweight semi-trailer frame, comprising a frame body (1), a top frame (2) is fixedly connected to the top of one side of the frame body (1), a first door panel (3) is rotatably connected to the top of both sides of the frame body (1) via a rotating shaft, a second door panel (4) is rotatably connected to the side of the frame body (1) away from the top frame (2) via a rotating shaft, a fixing sleeve (5) is fixedly connected to the bottom of the frame body (1), an axle (6) is slidably connected to the inner wall of the fixing sleeve (5), and wheels (7) are fixedly connected to both ends of the axle (6), characterized in that: The vehicle also includes a fixing assembly for fixing cylindrical goods, the fixing assembly being arranged at the top of the vehicle frame body (1), the fixing assembly including a rotating motor (8), the rotating motor (8) being fixedly connected to the bottom of the vehicle frame body (1), the output end of the rotating motor (8) being fixedly connected to a rotating shaft, the rotating shaft passing through the inner wall of the vehicle frame body (1), the top end of the rotating shaft being fixedly connected to a first gear (9), one side of the first gear (9) being meshed with a first rack (10), the first rack (10) A second rack (11) is fixedly connected to a side away from the first gear (9), a slide bar (12) is fixedly connected to the bottom of the second rack (11), a slide groove (13) is provided at the bottom of the inner wall of the frame body (1), the slide bar (12) is slidably connected to the inner wall of the slide groove (13), a second gear (14) is meshed at the top end of the second rack (11), a long rod (15) is fixedly connected to the center of the second gear (14), and the top end of the inner wall of the frame body (1) is fixedly connected to the inner wall of the slide groove (13). The first gear (9) is connected to the first wheel (11) and the second gear (11) is connected to the first wheel (11). The first gear (9) is connected to the first wheel (11) and the second gear (11) is connected to the first wheel (11). The first gear (9) is connected to the first wheel (11) and the second gear (11) is connected to the first wheel (11). The first gear (9) is connected to the first wheel (11) and the second gear (11) is connected to the first wheel (11). The first gear (9) is connected to the first wheel (11) and the second gear (11) is connected to the first wheel (11). The first gear (9) is connected to the first wheel (11) and the second gear (11) is connected to the first wheel (11). An arc block (20) is arranged at the end, and the arc block (20) is located between two groups of fixing plates (17); water collection components for collecting rainwater are arranged on both sides of the frame body (1); a cooling component for reducing the temperature of the brake pad of the wheel (7) is arranged below the frame body (1); a support component for facilitating unloading is arranged on the side of the second door panel (4) away from the frame body (1); and a positioning component for fixing the position of the wheel (7) is arranged at the bottom of the second door panel (4).

2. A lightweight semi-trailer frame according to claim 1, characterized in that: The water collection component comprises a water storage tank (24), the water storage tank (24) is fixedly connected to both sides of the frame body (1), the top of the frame body (1) is provided with an inclined groove, the inner wall of the inclined groove is provided with a frame plate (21), the top of the frame plate (21) is provided with a plurality of groups of square holes (22), the inner wall of the frame plate (21) is filled with a filter layer, the bottom of the frame plate (21) is provided with filter holes, the bottom of the inclined groove is fixedly connected to a circular tube (23), the bottom of the circular tube (23) is fixedly connected to the top of the water storage tank (24), the bottom of the water storage tank (24) is fixedly connected to a water outlet pipe (25), and the outer wall of the water outlet pipe (25) is fixedly connected to a valve (26).

3. A lightweight semi-trailer frame according to claim 2, characterized in that: The cooling component comprises a transmission pipe (27), the transmission pipe (27) is fixedly connected to the bottom of the water storage tank (24), the bottom of the transmission pipe (27) is fixedly connected to a square box (28), the square box (28) is fixedly connected to the bottom of the frame body (1), the bottom of the square box (28) is fixedly connected to a water spray pipe (29), the opening of the water spray pipe (29) faces the brake pad of the wheel (7), the side of the square box (28) away from the second door panel (4) is fixedly connected to an L-shaped plate (30), one side of the L-shaped plate (30) is slidably connected to a slide rod (31), and the slide rod (31) The outer wall of the square box (28) is fixedly connected with a circular plate (33), the circular plate (33) is arranged on one side of the square box (28), the side of the circular plate (33) away from the square box (28) is fixedly connected with a spring (32), the other end of the spring (32) is fixedly connected to one side of the L-shaped plate (30), the end of the sliding rod (31) away from the L-shaped plate (30) extends into the inner wall of the square box (28), the end of the sliding rod (31) extending into the inner wall of the square box (28) is fixedly connected with a stopper (34), the bottom of the stopper (34) is fixedly connected with a pad, and the stopper (34) and the pad are arranged at the top end of the water spray pipe (29).

4. A lightweight semi-trailer frame according to claim 3, characterized in that: The support assembly comprises a bottom block (35), the bottom block (35) being rotatably connected to a side of the second door panel (4) away from the vehicle frame body (1) via a rotating shaft, a support plate (36) being fixedly connected to one side of the bottom block (35), the top end of the support plate (36) being inclined, the top end of the support plate (36) being closely attached to the bottom of the second door panel (4), two groups of mounting grooves (37) being provided on both sides of the bottom block (35), the inner walls of the mounting grooves (37) being fixedly connected to magnets (38).

5. A lightweight semi-trailer frame according to claim 4, characterized in that: The positioning assembly comprises a first connecting rod (40), the first connecting rod (40) is rotatably connected to the bottom of the second door panel (4), the end of the first connecting rod (40) away from the second door panel (4) is rotatably connected to the second connecting rod (42), the end of the second connecting rod (42) away from the first connecting rod (40) is rotatably connected to a stabilizing block (43), the stabilizing block (43) is arranged on one side of the wheel (7), a sliding frame (44) is fixedly connected to the bottom of one side of the frame body (1), a sliding block (45) is fixedly connected to one side of the sliding block (43), the sliding block (45) is slidably connected to the inner wall of the sliding frame (44), the shape of the sliding block (45) is square, the side of the sliding block (45) away from the stabilizing block (43) is fixedly connected to a limiting plate, the limiting plate is arranged on one side of the sliding frame (44), and the sliding frame (44) is arranged in an inclined manner.

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