A fence-type rear-mounted flatbed trailer

Abstract

The utility model belongs to the technical field of flat trailer, specifically disclose a fence type rear hanging flat trailer, include, rear hanging flat car subassembly, rear hanging flat car subassembly includes frame subassembly, wheel subassembly, suspension subassembly, two trailer bottom plate overlap and adopt welding fixed, two trailer side plate is located at the both sides of trailer bottom plate and adopts welding fixed, trailer rear fence is located at the end of trailer bottom plate, the end of trailer side plate all is provided with the lock catch, lock catch adopts the bolt installation limit, the both ends of trailer rear fence adopt bolt installation corresponding buckle, lock catch and buckle joint limit, suspension subassembly installs at the end of frame subassembly, buffer wheel subassembly is located at the bottom of frame subassembly, the buffer wheel subassembly of the utility model through the unique cooperation of spring and upper and lower telescopic pipe, has constituted an initiative buffer mechanism, when the wheel is rolling on uneven road, this system can effectively absorb and resolve the impact force that jolt produces.

Description

Technical Field

[0001] This utility model relates to the field of flatbed trailer technology, specifically a fence-type rear-mounted flatbed trailer. Background Technology

[0002] A rear-mounted flatbed trailer is a road vehicle that is not powered on its own and needs to be towed by a tractor or forklift. Its main function is to efficiently and conveniently transport and move heavy, non-detachable goods and bulk materials. It is widely used in factories, docks, ports, construction sites and large warehouses, and can be used for short-distance cargo handling and stacking within the site. Its excellent load-bearing capacity can effectively improve logistics efficiency and significantly reduce transportation costs. The common cushioning method of flatbed trailers is to use inflatable wheels for simple shock absorption, which makes it difficult to effectively protect the transported goods. Utility Model Content

[0003] The purpose of this utility model is to provide a fenced-type rear-mounted flatbed trailer to solve the above problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fence-type rear-mounted flatbed trailer, comprising;

[0005] The rear trailer assembly includes a frame assembly, wheel assembly, and suspension assembly.

[0006] The frame components include the trailer floor, trailer side panels, and trailer rear railing;

[0007] The trailer has two floor plates, which are welded together and overlapped. There are also two side plates, which are welded to both sides of the floor plates. The rear railing is located at the end of the floor plates. Each side plate has a latch at its end, which is bolted for locking. The rear railing has corresponding clips bolted to both ends, which engage with the latches for locking.

[0008] The suspension assembly is mounted at the end of the frame assembly, and the buffer wheel assembly is located at the bottom of the frame assembly.

[0009] Preferably, each end of the trailer side panel is provided with a pull rope, one end of which is fixedly connected to the trailer side panel, and the other end of which is fastened to the outside of the trailer rear guardrail.

[0010] Preferably, the buffer wheel assembly includes a wheel, a wheel axle, a support frame, a connecting part, a lower telescopic tube, a spring, and an upper telescopic tube;

[0011] There are two wheels, located on both sides of the bottom of the trailer floor. One end of the wheel axle passes through the wheel and is rotatably connected to the wheel. The other end of the wheel axle is hinged to the support frame, and the connecting part is hinged to the end of the support frame away from the wheel axle.

[0012] The bottom of the lower telescopic tube is hinged to one end of the support frame, and the top of the lower telescopic tube is inserted into the interior of the upper telescopic tube and slidably connected thereto. The two ends of the spring abut against the lower telescopic tube and the upper telescopic tube respectively. When the wheels encounter undulating road surfaces during rolling, the length can be adjusted up and down through the lower telescopic tube and the upper telescopic tube. The spring also provides cushioning during the extension and retraction of the lower and upper telescopic tubes, thus reducing the bumps of the goods loaded inside the frame assembly.

[0013] Preferably, a fastener A and a fastener B are welded and fixed on the trailer floor, the top of the upper telescopic tube is hinged to the bottom of the fastener A, and the top of the connecting part is fixed to the bottom of the fastener B by bolts.

[0014] Preferably, the suspension assembly includes a mounting bracket, a fixing bracket, an extension rod, a fixing device, and a tie rod;

[0015] One end of the mounting bracket is fixed to the end of the trailer floor with bolts. The other end of the fixing bracket is laterally rotatably connected to the mounting bracket. There are two extension rods. One end of the two extension rods is welded to the fixing bracket, and the other end of the extension rod is welded to the outside of the fixing device. The two ends of the pull rod pass through the two fixing devices. The trailer hook is sleeved on the outside of the pull rod and can move the rear trailer assembly by pulling the suspension assembly. At this time, the cargo can be loaded and transported through the rear trailer assembly.

[0016] The goods to be transported are placed on the trailer floor, and then the trailer hook is attached to the outside of the tie rod. The suspension assembly pulls the rear trailer assembly to move. At this time, the goods can be loaded and transported through the rear trailer assembly. The two ends of the spring abut against the lower telescopic tube and the upper telescopic tube respectively. When the wheels encounter the up and down road surface during rolling, the length can be adjusted by extending and retracting the lower and upper telescopic tubes. The springs buffer the movement of the lower and upper telescopic tubes, so that the goods loaded in the frame assembly are less bumpy.

[0017] Preferably, the trailer rear railing can be opened. When opened, the trailer rear railing is level with the trailer floor. Then, a rope is pulled closer to the trailer rear railing to prevent it from tilting. The opened trailer rear railing facilitates loading and unloading of goods and improves convenience.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The buffer wheel assembly of this utility model forms an active buffer mechanism through the unique cooperation of spring and upper and lower telescopic tubes. When the wheel rolls on an uneven road surface, the system can effectively absorb and resolve the impact force generated by the bumps, directly protecting the precision instruments or fragile goods during transportation. This solves the problem that traditional flatbed trailers are mostly rigid or simply hinged to the vehicle body, and the vehicle body is prone to tilting on bumpy roads, causing the goods to slip or even causing a rollover accident.

[0020] 2. The frame components adopt a double-layer welded base plate and modular enclosure design. The double-layer base plate enhances the rigidity and torsional resistance of the load-bearing surface, making it suitable for heavy cargo. The side panels and the openable rear fence are connected by a multi-point mechanical locking system consisting of locks, buckles and pull ropes, which provides necessary flexibility while ensuring structural stability and transportation safety. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of a partial structure of the present invention from above;

[0023] Figure 3 This is a schematic diagram of the suspension component structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the wheel assembly of this utility model.

[0025] In the diagram: 100, trailer floor; 101, trailer side panel; 102, trailer rear railing; 103, latch; 104, pull rope; 105, fastener A; 106, fastener B; 200, wheel; 201, wheel axle; 202, support frame; 203, connecting part; 204, lower telescopic tube; 205, spring; 206, upper telescopic tube; 300, mounting bracket; 301, fixing bracket; 302, extension rod; 303, fixing device; 304, pull rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Please see Figure 1-4 This utility model provides a technical solution: a fence-type rear-mounted flatbed trailer, comprising;

[0030] The rear trailer assembly includes a frame assembly, wheel assembly, and suspension assembly.

[0031] The frame components include a trailer floor 100, trailer side panels 101, and a trailer rear railing 102;

[0032] There are two trailer floor plates 100, which are overlapped and fixed by welding. There are also two trailer side plates 101, which are located on both sides of the trailer floor plates 100 and fixed by welding. The trailer rear railing 102 is located at the end of the trailer floor plates 100. Each end of the trailer side plate 101 is provided with a latch 103, which is bolted for limiting. Both ends of the trailer rear railing 102 are bolted with corresponding buckles, and the latches 103 engage with the buckles for limiting.

[0033] The suspension assembly is mounted at the end of the frame assembly, and the buffer wheel assembly is located at the bottom of the frame assembly.

[0034] Furthermore, each end of the trailer side panel 101 is provided with a pull rope 104. One end of the pull rope 104 is fixedly connected to the trailer side panel 101, and the other end of the pull rope 104 is fastened to the outside of the trailer rear guardrail 102.

[0035] Furthermore, the buffer wheel assembly includes a wheel 200, a wheel axle 201, a support frame 202, a connecting part 203, a lower telescopic tube 204, a spring 205, and an upper telescopic tube 206;

[0036] There are two wheels 200, which are located on both sides of the bottom of the trailer floor 100. One end of the wheel axle 201 passes through the wheel 200 and is rotatably connected to the wheel 200. The other end of the wheel axle 201 is hinged to the support frame 202. The connecting part 203 is hinged to the end of the support frame 202 away from the wheel axle 201.

[0037] The bottom of the lower telescopic tube 204 is hinged to one end of the support frame 202, and the top of the lower telescopic tube 204 is embedded in the interior of the upper telescopic tube 206 and slidably connected thereto. The two ends of the spring 205 abut against the lower telescopic tube 204 and the upper telescopic tube 206 respectively. When the wheel 200 encounters an undulating road surface during its rolling motion, the length can be adjusted up and down through the lower telescopic tube 204 and the upper telescopic tube 206. The spring 205 provides cushioning during the extension and retraction of the lower telescopic tube 204 and the upper telescopic tube 206, thereby reducing the bumps of the goods loaded inside the frame assembly.

[0038] Furthermore, fasteners A105 and B106 are welded and fixed on the trailer floor 100. The top of the upper telescopic tube 206 is hinged to the bottom of the fastener A105, and the top of the connecting part 203 is fixed to the bottom of the fastener B106 by bolts.

[0039] Furthermore, the suspension assembly includes a mounting bracket 300, a fixing bracket 301, an extension rod 302, a retainer 303, and a tie rod 304;

[0040] One end of the mounting bracket 300 is fixed to the end of the trailer floor 100 by bolts. The fixing bracket 301 is laterally rotatably connected to the other end of the mounting bracket 300. There are two extension rods 302. One end of the two extension rods 302 is welded to the fixing bracket 301, and the other end of the extension rod 302 is welded to the outside of the fixing device 303. The two ends of the pull rod 304 pass through the two fixing devices 303. The trailer hook is sleeved on the outside of the pull rod 304 and can move the rear trailer assembly by pulling the suspension assembly. At this time, the cargo can be loaded and transported through the rear trailer assembly.

[0041] Working principle: When in use, the goods to be transported are placed on the trailer floor 100, and then the trailer hook is attached to the outside of the pull rod 304. The suspension assembly pulls the rear trailer assembly to move. At this time, the goods can be loaded and transported through the rear trailer assembly. The two ends of the spring 205 are respectively in contact with the lower telescopic tube 204 and the upper telescopic tube 206. When the wheels 200 encounter undulating road surfaces during rolling, the length can be adjusted up and down through the lower telescopic tube 204 and the upper telescopic tube 206. The spring 205 provides cushioning when the lower telescopic tube 204 and the upper telescopic tube 206 extend and retract, so that the goods loaded in the frame assembly are less bumpy.

[0042] Furthermore, the trailer rear guardrail 102 can be opened. When opened, the trailer rear guardrail 102 is kept horizontal with the trailer floor 100. Then, the pull rope 104 pulls the trailer rear guardrail 102 closer to prevent it from tilting. The opened trailer rear guardrail 102 facilitates loading and unloading of goods and improves convenience.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corral-type rear-mounted flatbed trailer, characterized by: include; A trailer assembly, comprising a frame assembly, wheel assembly, and suspension assembly; The frame assembly includes a trailer floor (100), trailer side panels (101), and a trailer rear railing (102); The trailer floor plate (100) consists of two pieces, which are overlapped and fixed by welding. The trailer side plate (101) consists of two pieces, which are located on both sides of the trailer floor plate (100) and fixed by welding. The trailer rear railing (102) is located at the end of the trailer floor plate (100). Each end of the trailer side plate (101) is provided with a latch (103), which is bolted for limiting. The two ends of the trailer rear railing (102) are bolted with corresponding buckles, and the latches (103) engage with the buckles for limiting. The suspension assembly is mounted at the end of the frame assembly, and the buffer wheel assembly is located at the bottom of the frame assembly.

2. A fence-type rear-mounted flatbed trailer as claimed in claim 1, characterized in that: Each end of the trailer side panel (101) is provided with a pull rope (104). One end of the pull rope (104) is fixedly connected to the trailer side panel (101), and the other end of the pull rope (104) is fastened to the outside of the trailer rear railing (102).

3. A fence-type rear-mounted flatbed trailer as defined in claim 1, wherein: The buffer wheel assembly includes a wheel (200), a wheel axle (201), a support frame (202), a connecting part (203), a lower telescopic tube (204), a spring (205), and an upper telescopic tube (206); There are two wheels (200), which are located on both sides of the bottom of the trailer floor (100). One end of the wheel axle (201) passes through the wheel (200) and is rotatably connected to the wheel (200). The other end of the wheel axle (201) is hinged to the support frame (202). The connecting part (203) is hinged to the end of the support frame (202) away from the wheel axle (201). The bottom of the lower telescopic tube (204) is hinged to one end of the support frame (202), and the top of the lower telescopic tube (204) is embedded in the interior of the upper telescopic tube (206) and slidably connected thereto. The two ends of the spring (205) abut against the lower telescopic tube (204) and the upper telescopic tube (206) respectively.

4. A fence-type rear-mounted flatbed trailer as defined in claim 1, wherein: Fixing member A (105) and fixing member B (106) are welded and fixed on the trailer floor plate (100). The top of the upper telescopic tube (206) is hinged to the bottom of fixing member A (105), and the top of the connecting part (203) is fixed to the bottom of fixing member B (106) by bolts.

5. A fence-type rear-mounted flatbed trailer as defined in claim 1, wherein: The suspension assembly includes a mounting bracket (300), a fixing bracket (301), an extension rod (302), a fixing device (303), and a tie rod (304); One end of the mounting bracket (300) is fixed to the end of the trailer floor plate (100) by bolts. The other end of the fixing bracket (301) is laterally rotatably connected to the mounting bracket (300). There are two extension rods (302). One end of the two extension rods (302) is welded to the fixing bracket (301), and the other end of the extension rods (302) is welded to the outside of the fixing device (303). The two ends of the pull rod (304) pass through the two fixing devices (303).

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