A refrigerated van semi-trailer rear crossbeam structure

Abstract

This utility model discloses a rear crossbeam structure for a refrigerated semi-trailer, including a refrigerated truck body, with a refrigerated truck door hinged to its outer side wall. A fixing rod is fixedly connected to the outer surface of the refrigerated truck body, and a buffer assembly is rotatably connected to the outer wall of the fixing rod. A limit block is fixedly connected to the end of the fixing rod away from the refrigerated truck body. Multiple rear crossbeams are fixedly connected to the outer surface of the buffer assembly, and a fixing plate is fixedly connected to the outer wall of the rear crossbeams. By setting up the rear crossbeams and the buffer assembly, when the rear crossbeams are impacted, they will push the rear crossbeams and the fixing plate towards the refrigerated truck door. During this process, the buffer plate, the second hinge seat, the connecting plate, and the first hinge seat will move accordingly, thereby pushing the slide seat to slide and rub against the outer wall of the slide rod and compress the spring, and spreading the impact force of the rear crossbeams to both sides, greatly reducing the impact on the refrigerated truck door, effectively preventing the refrigerated truck door from deforming due to the impact, and ensuring the sealing and refrigeration effect of the truck body.

Description

Technical Field

[0001] This utility model relates to the field of refrigerated transport equipment technology, and in particular to a rear crossbeam structure for a refrigerated box semi-trailer. Background Technology

[0002] The rear crossbeam structure of a refrigerated semi-trailer is a key load-bearing component at the rear of the chassis. It typically consists of the crossbeam body, connecting parts (such as mounting rods and positioning components), buffer components (such as slide rails, sliders, and damping rods), and protective structures (such as buffer pads and bumpers). It is used to connect the left and right longitudinal beams of the chassis and support the rear door and auxiliary equipment of the cargo box. It also integrates lighting installation and bumper fixing, improving space utilization and operational convenience.

[0003] Chinese Patent CN220837328U discloses a rear crossbeam structure for a refrigerated semi-trailer, comprising: a main beam; and an adjustable support part. The adjustable support part is disposed on one side of the main beam. The adjustable support part includes a connecting shaft, and positioning components are fixedly connected to the upper and lower sides of the connecting shaft. A rectangular stop block is fixedly connected to the bottom of the positioning component on the lower side, and a handle is fixedly connected to the top of the positioning component on the upper side via a connecting arm. The connecting arm passes through the main beam and extends to the upper side of the main beam. The refrigerated semi-trailer rear crossbeam structure provided by this utility model, by providing an adjustable support part on one side of the main beam, allows the adjustable support part to be moved upwards until it can no longer be moved when it is needed to get on the vehicle. At this time, the handle can be used in conjunction with the foot pedal to assist in getting on the vehicle, making the upper operation simpler. When not in use, the adjustable support part can be retracted by pulling the pull ring, making it easy to store and convenient to use without taking up space.

[0004] The above-mentioned solutions and existing technologies for refrigerated semi-trailer rear crossbeam structures still have many problems in actual use. Among them, the most prominent problem is the lack of effective protective measures at the rear door of the refrigerated semi-trailer. During transportation, the refrigerated truck door is very susceptible to collisions. Once a collision occurs, it may cause the door to deform. The deformation of the refrigerated truck door will seriously affect the sealing of the truck body, thereby destroying the refrigeration effect.

[0005] Therefore, this utility model proposes a rear crossbeam structure for a refrigerated semi-trailer to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a rear crossbeam structure for a refrigerated semi-trailer to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a refrigerated semi-trailer rear crossbeam structure, including a refrigerated truck body, a refrigerated truck door hinged to the outer wall of the refrigerated truck body, a fixing rod fixedly connected to the outer surface of the refrigerated truck body, a buffer assembly rotatably connected to the outer wall of the fixing rod, a limit block fixedly connected to the end of the fixing rod away from the refrigerated truck body, a plurality of rear crossbeams fixedly connected to the outer surface of the buffer assembly, and a fixing plate fixedly connected to the outer wall of the rear crossbeams.

[0008] Preferably, the buffer assembly includes a mounting plate rotatably connected to the outer wall of the fixed rod, the outer surface of the mounting plate having a through hole, and the inner wall of the through hole having a fixing bolt.

[0009] Preferably, the refrigerated truck body has a threaded groove on the side near the mounting plate to facilitate the threaded connection of the fixing bolts, and the mounting plate is fixedly connected to a mounting shell on the side away from the refrigerated truck body.

[0010] Preferably, a slide rod is fixedly connected to the inner wall of the mounting shell, a slide seat is slidably connected to the outer wall of the slide rod, a hinge seat is fixedly connected to the outer surface of the slide seat, and a connecting plate is hinged to the inner wall of the hinge seat.

[0011] Preferably, a second hinge is hinged to the end of the connecting plate away from the first hinge, and a buffer plate is fixedly connected to the side of the second hinge away from the connecting plate. The side of the buffer plate away from the second hinge is fixedly connected to the outer surface of the rear crossbeam.

[0012] Preferably, both ends of the slide rod are fixedly connected to limit rings, and a spring is sleeved on the outer wall of the slide rod. One end of the spring abuts against the outer wall of the limit ring, and the end of the spring away from the limit ring abuts against the outer wall of the slide block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By incorporating a rear crossbeam and buffer assembly, when the rear crossbeam is impacted, it will push the rear crossbeam and the fixed plate towards the refrigerated truck door. During this process, the buffer plate, hinge seat 2, connecting plate, and hinge seat 1 will move accordingly, thereby pushing the slide block to slide and rub against the outer wall of the slide rod and compress the spring. This will diffuse the impact force of the impact on the rear crossbeam to both sides, greatly reducing the impact on the refrigerated truck door, effectively preventing the refrigerated truck door from deforming due to the impact, and ensuring the sealing and refrigeration effect of the truck. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the buffer component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the rear crossbeam structure of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 This utility model Figure 1 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Refrigerated truck body; 2. Refrigerated truck door; 3. Buffer assembly; 301. Mounting plate; 302. Through hole; 303. Mounting shell; 304. Slide rod; 305. Buffer plate; 306. Hinge seat two; 307. Slide seat; 308. Hinge seat one; 309. Limiting ring; 310. Spring; 311. Connecting plate; 4. Rear crossbeam; 5. Fixing plate; 6. Limiting block; 7. Fixing rod; 8. Fixing bolt. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1 to 5This utility model provides a technical solution: a rear crossbeam structure for a refrigerated semi-trailer, including a refrigerated truck body 1, a refrigerated truck door 2 hinged to the outer wall of the refrigerated truck body 1, a fixing rod 7 fixedly connected to the outer surface of the refrigerated truck body 1, and a buffer assembly 3 rotatably connected to the outer wall of the fixing rod 7. By rotating the fixing bolt 8 to disengage it from the threaded groove, the fixing to the mounting plate 301 is released. Then, the mounting plate 301 is slowly rotated, and the buffer assembly 3 and the rear crossbeam 4 are rotated to the ground around the fixing rod 7 as the axis. At this time, workers can safely step on the rear crossbeam 4 to open the refrigerated truck door 2, conveniently enter and exit the refrigerated truck body 1, and carry out cargo handling and loading / unloading work. The fixing rod 7 is moved away from the refrigerated truck body 1. One end of the buffer assembly 3 is fixedly connected to a limiting block 6 to prevent the mounting plate 301 from detaching from the fixing rod 7. Multiple rear crossbeams 4 are fixedly connected to the outer surface of the buffer assembly 3, and a fixing plate 5 is fixedly connected to the outer wall of the rear crossbeams 4. The buffer assembly 3 includes a mounting plate 301 rotatably connected to the outer wall of the fixing rod 7. A through hole 302 is opened through the outer surface of the mounting plate 301, and a fixing bolt 8 is passed through the inner wall of the through hole 302. A threaded groove is opened on the side of the refrigerated truck body 1 near the mounting plate 301 to facilitate the threaded connection of the fixing bolt 8. Through the cooperation of the fixing bolt 8 and the threaded groove, the mounting plate 301 can be firmly fixed to the refrigerated truck body 1. A mounting shell 303 is fixedly connected to the side of the mounting plate 301 away from the refrigerated truck body 1.

[0023] In actual use, during normal transportation of the refrigerated semi-trailer, the rear crossbeam 4 is located behind the refrigerated truck door, providing reliable protection for the refrigerated truck door. When the vehicle encounters a rear collision, the rear crossbeam 4 first bears the impact force and pushes the rear crossbeam 4 and the fixing plate 5 towards the refrigerated truck door 2. At this time, the buffer plate 305, the second hinge seat 306, the connecting plate 311, and the first hinge seat 308 will move accordingly, pushing the slide seat 307 to slide on the slide rod 304. At the same time, the spring 310 is compressed. The elastic force of the spring 310 disperses the impact force to both sides, reducing the impact on the refrigerated truck door 2, effectively protecting the refrigerated truck door 2 from damage, and ensuring a stable refrigerated environment inside the truck.

[0024] A slide rod 304 is fixedly connected to the inner wall of the mounting shell 303. A slide seat 307 is slidably connected to the outer wall of the slide rod 304. A hinge seat 308 is fixedly connected to the outer surface of the slide seat 307. A connecting plate 311 is hinged to the inner wall of the hinge seat 308. A second hinge seat 306 is hinged to the end of the connecting plate 311 away from the first hinge seat 308. A buffer plate 305 is fixedly connected to the side of the second hinge seat 306 away from the connecting plate 311. One side of 306 is fixedly connected to the outer surface of the rear crossbeam 4; both ends of the slide rod 304 are fixedly connected to limit rings 309 to limit the sliding range of the slide block 307. A spring 310 is sleeved on the outer wall of the slide rod 304. One end of the spring 310 abuts against the outer wall of the limit ring 309, and the end of the spring 310 away from the limit ring 309 abuts against the outer wall of the slide block 307. When the rear crossbeam 4 is subjected to external force, the spring 310 can play a role in buffering and shock absorption.

[0025] In actual use, when staff need to enter and exit the refrigerated truck body 1 to load and unload goods, the operator first rotates the fixing bolt 8 to disengage it from the threaded groove, releasing the fixing of the mounting plate 301. Then, the operator slowly rotates the mounting plate 301, using the fixing rod 7 as the axis to rotate the buffer assembly 3 and the rear crossbeam 4 to the ground. At this time, the staff can safely step on the rear crossbeam 4 to open the refrigerated truck door 2, easily entering and exiting the refrigerated truck body 1 to carry out the handling and loading / unloading of goods. After the goods are loaded and unloaded, the buffer assembly 3 and the rear crossbeam 4 are rotated back to their original positions, and the mounting plate 301 is fixed to the refrigerated truck body 1 again with the fixing bolt 8, so that the vehicle returns to normal transportation status.

[0026] 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 refrigerated van trailer rear cross beam structure, comprising a refrigerated van body (1), the outer side wall of the refrigerated van body (1) is hinged with a refrigerated van door (2), characterized in that: A fixing rod (7) is fixedly connected to the outer surface of the refrigerated compartment body (1). A buffer assembly (3) is rotatably connected to the outer wall of the fixing rod (7). A limit block (6) is fixedly connected to the end of the fixing rod (7) away from the refrigerated compartment body (1). Multiple rear crossbeams (4) are fixedly connected to the outer surface of the buffer assembly (3). A fixing plate (5) is fixedly connected to the outer wall of the rear crossbeams (4).

2. The refrigerated van trailer rear crossmember structure of claim 1, characterized by: The buffer assembly (3) includes a mounting plate (301) rotatably connected to the outer wall of the fixed rod (7). The outer surface of the mounting plate (301) is provided with a through hole (302), and the inner wall of the through hole (302) is provided with a fixing bolt (8).

3. The refrigerated van trailer rear crossmember structure of claim 2, characterized by: The refrigerated truck body (1) has a threaded groove on the side near the mounting plate (301) to facilitate the threaded connection of the fixing bolt (8), and the mounting plate (301) is fixedly connected to the side away from the refrigerated truck body (1) with a mounting shell (303).

4. The refrigerated van trailer rear crossmember structure of claim 3, characterized by: The inner wall of the mounting shell (303) is fixedly connected to a slide rod (304), the outer wall of the slide rod (304) is slidably connected to a slide seat (307), the outer surface of the slide seat (307) is fixedly connected to a hinge seat (308), and the inner wall of the hinge seat (308) is hinged to a connecting plate (311).

5. The refrigerated van trailer rear crossmember structure of claim 4, characterized by: The connecting plate (311) is hinged to the end away from the first hinge seat (308) with the second hinge seat (306). The second hinge seat (306) is fixedly connected to the side away from the connecting plate (311) with the buffer plate (305). The side of the buffer plate (305) away from the second hinge seat (306) is fixedly connected to the outer surface of the rear crossbeam (4).

6. The refrigerated van trailer rear crossmember structure of claim 4, characterized by: Both ends of the slide rod (304) are fixedly connected to limit rings (309). A spring (310) is sleeved on the outer wall of the slide rod (304). One end of the spring (310) abuts against the outer wall of the limit ring (309), and the end of the spring (310) away from the limit ring (309) abuts against the outer wall of the slide block (307).

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