A new low flatbed transport semi-trailer

Abstract

The utility model provides a novel low flatbed transport semitrailer belongs to traffic transport equipment technical field to solve the existing trailer transport other smaller box goods, need to use forklift and so on auxiliary loading when these goods, including semitrailer main part, lifting support frame, lifting connecting rod, lifting platform, installation warning unit and loading switching mechanism, lifting support frame sets up two groups, and two groups of lifting support frames are fixedly connected in the rear left and right sides of semitrailer main part, lifting connecting rod sets up two groups, and two groups of lifting connecting rods are set up in the rear left and right sides of semitrailer main part, lifting platform is welded in the below of lifting connecting rod, installation warning unit sets up in the rear of lifting connecting rod, loading switching mechanism sets up in the above of lifting platform, and the overall structure gives consideration to different goods loading and unloading demand, enhances the diversity and practicality of semitrailer loading and unloading scene.

Description

Technical Field

[0001] This utility model belongs to the field of transportation equipment technology, and more specifically, it relates to a new type of low-flatbed semi-trailer. Background Technology

[0002] To meet the demands of transporting heavy and extra-large cargo, low-flatbed semi-trailers, as special-purpose vehicles, employ a concave beam frame. The cargo platform height is typically 0.5-1 meter, and they feature a multi-axle layout, with a load capacity ranging from 40 to 150 tons. The frame is constructed using high-strength steel such as Q345, combining rigidity and fatigue resistance. Their suspension systems include leaf springs and air suspension, and the tires are mostly large-size, with a single tire capable of supporting 10-13 tons. They are primarily used for transporting excavators, large machine tools, wind turbine blades, and other similar goods.

[0003] Existing application number: CN202421575652.3. This utility model provides a low-flatbed semi-trailer, including: a base, with mounting sleeves fixedly installed at the four corners of the bottom of the base, and the number of mounting sleeves is four. A telescopic sleeve is fixedly installed inside the bottom of each of the four mounting sleeves, and a telescopic rod is slidably installed inside each telescopic sleeve. This utility model provides a low-flatbed semi-trailer that, when encountering bumpy road sections during operation, will cause significant vibration to the cargo placed on the material platform, easily leading to damage. When vibration occurs, the material platform moves up and down repeatedly, causing the telescopic rod to move up and down repeatedly inside the telescopic sleeve. During this process, the spring is continuously compressed and reset, effectively buffering the movement and reducing the probability of cargo damage. Due to the sealing ring, air inside the telescopic sleeve can only enter or exit through the vent, providing damping and preventing the spring from moving up and down repeatedly and becoming difficult to stop.

[0004] Based on the above, when loading and unloading existing low-bed semi-trailers, the hydraulic climbing frame is usually lowered so that special equipment (such as excavators) can walk along the climbing frame onto the flatbed of the semi-trailer. However, low-bed semi-trailers often transport other smaller boxed goods. When loading these goods, forklifts and other auxiliary equipment are needed, resulting in the semi-trailer's climbing frame being idle. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a novel low-bed semi-trailer. This addresses the issue that existing low-bed semi-trailers typically involve lowering a hydraulic climbing frame before allowing specialized equipment (such as excavators) to travel along the frame onto the semi-trailer's flatbed. However, low-bed semi-trailers often transport smaller boxed goods, requiring forklifts or other auxiliary equipment for loading, resulting in the semi-trailer's climbing frame being idle.

[0006] The purpose and effect of this utility model, a novel low-bed semi-trailer for transportation, are achieved by the following specific technical means: A novel low-bed semi-trailer includes a semi-trailer body, a lifting support frame, lifting connecting rods, a lifting platform, a warning unit, and a loading switching mechanism. Two sets of lifting support frames are fixedly connected to the left and right rear sides of the semi-trailer body. Two sets of lifting connecting rods are also provided, positioned on the left and right rear sides of the semi-trailer body. The lifting platform is welded to the lower part of the lifting connecting rods. The warning unit is located behind the lifting connecting rods. The loading switching mechanism is positioned above the lifting platform.

[0007] Furthermore, the installation warning unit includes: loading and unloading warning lights; two sets of loading and unloading warning lights are provided, and the two sets of loading and unloading warning lights are respectively fixedly connected to the left and right sides of the lifting connecting rod.

[0008] Furthermore, the loading switching mechanism includes: a first lifting link and a second lifting link; two sets of the first lifting links are provided, each set of the first lifting links is hinged to the front end of the lifting connecting rod, and the front ends of the two sets of the first lifting links are respectively hinged to the lifting support frame; two sets of the second lifting links are provided, each set of the second lifting links is hinged to the front end of the lifting connecting rod, and the front ends of the two sets of the second lifting links are respectively hinged to the lifting support frame, and the second lifting links and the first lifting links together form a parallelogram structure.

[0009] Furthermore, the loading switching mechanism also includes: a lifting drive link and a lifting drive component; the lifting drive link is provided in two sets, and the two sets of lifting drive links are respectively fixedly connected to the rear end of the first lifting link; the lifting drive component is provided in two sets, both sets of lifting drive components are hydraulic cylinder structures, the two sets of lifting drive components are respectively hinged to the outside of the lifting support frame, and the piston rod structure of the two sets of lifting drive components is respectively hinged to the lifting drive link.

[0010] Furthermore, the loading switching mechanism also includes: a climbing connecting rod and a climbing support plate; two sets of climbing connecting rods are provided, and the two sets of climbing connecting rods are fixedly connected to the rear of the lifting connecting rod; two sets of climbing support plates are provided, and the two sets of climbing support plates are hinged to the inner side of the climbing connecting rod.

[0011] Furthermore, the loading switching mechanism also includes a climbing drive component; the climbing drive component is provided in two sets, both sets of climbing drive components are hydraulic cylinder structures, the two sets of climbing drive components are respectively hinged to the outside of the lifting connecting rod, and the piston rod structure of the two sets of climbing drive components is respectively hinged to the climbing support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This utility model incorporates a loading and unloading warning light. When loading and unloading goods, the warning light is turned on and illuminates, alerting vehicles and pedestrians behind and ensuring the safety of loading and unloading.

[0013] This invention, through the setting of a loading and switching mechanism, places boxed goods above the lifting platform. Activating the lifting drive unit causes its piston rod to extend and rotate, driving the lifting drive connecting rod to rotate. This rotation, in turn, causes the first lifting connecting rod to rotate. Under the action of the second lifting connecting rod, the first lifting connecting rod moves the lifting connecting rod forward and upward, which in turn moves the lifting platform forward and upward. This forward and upward movement lifts the boxed goods above the flatbed of the semi-trailer body. Workers then remove the goods from the lifting platform, thus achieving the loading and unloading of boxed goods. When loading and unloading special vehicles, activating the climbing drive unit causes its piston rod to extend and rotate, driving the climbing support plate to rotate. The climbing support plate rotates and overlaps the rear of the semi-trailer body, allowing the special vehicle to climb onto the flatbed of the semi-trailer body along the climbing support plate. The overall structure accommodates different cargo loading and unloading needs, enhancing the diversity and practicality of semi-trailer loading and unloading scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the climbing support plate structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the lifting drive component of this utility model.

[0017] Figure 4 This is a schematic diagram of the climbing drive component of this utility model.

[0018] Figure 5 This is a schematic diagram of the first lifting linkage structure of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Semi-trailer body; 101. Loading and unloading warning light; 2. Lifting support frame; 201. First lifting link; 202. Second lifting link; 203. Lifting drive link; 204. Lifting drive component; 205. Climbing connecting rod; 206. Climbing support plate; 207. Climbing drive component; 3. Lifting connecting rod; 4. Lifting platform. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] Example 1: As shown in the attached document Figure 1 To be continued Figure 5 As shown: This utility model provides a novel low-flatbed semi-trailer, including a semi-trailer body 1, a lifting support frame 2, lifting connecting rods 3, a lifting platform 4, and a warning unit. Two sets of lifting support frames 2 are provided, fixedly connected to the left and right rear sides of the semi-trailer body 1 respectively. Two sets of lifting connecting rods 3 are also provided, respectively positioned on the left and right rear sides of the semi-trailer body 1. The lifting platform 4 is welded to the bottom of the lifting connecting rods 3. The warning unit is located behind the lifting connecting rods 3.

[0022] The installation warning unit includes: loading and unloading warning lights 101; two sets of loading and unloading warning lights 101 are provided, and the two sets of loading and unloading warning lights 101 are fixedly connected to the left and right sides of the lifting connecting rod 3 respectively.

[0023] The specific usage and function of this embodiment: When loading and unloading goods, the loading and unloading warning light 101 is turned on and emits light, which serves as a reminder to vehicles and pedestrians behind, ensuring the safety of loading and unloading goods.

[0024] Example 2: This utility model provides a novel low-flatbed semi-trailer, based on Example 1, as shown in the appendix. Figure 1 To be continued Figure 5 As shown, it also includes a loading switching mechanism, which is located above the lifting platform 4.

[0025] The loading and switching mechanism includes: a first lifting link 201 and a second lifting link 202; two sets of the first lifting link 201 are provided, and the two sets of the first lifting link 201 are respectively hinged to the front end of the lifting connecting rod 3, and the front end of the two sets of the first lifting link 201 is respectively hinged to the lifting support frame 2; two sets of the second lifting link 202 are provided, and the two sets of the second lifting link 202 are respectively hinged to the front end of the lifting connecting rod 3, and the front end of the two sets of the second lifting link 202 is respectively hinged to the lifting support frame 2. The second lifting link 202 and the first lifting link 201 together form a parallelogram structure.

[0026] The loading switching mechanism also includes: a lifting drive link 203 and a lifting drive component 204; two sets of lifting drive links 203 are provided, and the two sets of lifting drive links 203 are respectively fixedly connected to the rear end of the first lifting link 201; two sets of lifting drive components 204 are provided, and both sets of lifting drive components 204 are hydraulic cylinder structures. The two sets of lifting drive components 204 are respectively hinged to the outside of the lifting support frame 2, and the piston rod structure of the two sets of lifting drive components 204 is respectively hinged to the lifting drive link 203.

[0027] The loading switching mechanism also includes: a climbing connecting rod 205 and a climbing support plate 206; two sets of climbing connecting rods 205 are provided, and the two sets of climbing connecting rods 205 are fixedly connected to the rear of the lifting connecting rod 3; two sets of climbing support plates 206 are provided, and the two sets of climbing support plates 206 are hinged to the inner side of the climbing connecting rod 205.

[0028] The loading switching mechanism also includes a climbing drive component 207. There are two sets of climbing drive components 207. Both sets of climbing drive components 207 are hydraulic cylinder structures. The two sets of climbing drive components 207 are respectively hinged to the outside of the lifting connecting rod 3. The piston rod structure of the two sets of climbing drive components 207 is respectively hinged to the climbing support plate 206.

[0029] The specific usage and function of this embodiment are as follows: When loading boxed goods, the boxed goods are placed above the lifting platform 4. The lifting drive component 204 is opened, and the piston rod of the lifting drive component 204 extends to drive the lifting drive connecting rod 203 to rotate. The rotation of the lifting drive connecting rod 203 drives the first lifting connecting rod 201 to rotate. The rotation of the first lifting connecting rod 201, under the action of the second lifting connecting rod 202, drives the lifting connecting rod 3 to move forward and upward. The forward and upward movement of the lifting connecting rod 3 drives the lifting platform 4 to move forward and upward. At this time, the forward and upward movement lifts the boxed goods to the top of the flatbed of the semi-trailer body 1. The workers then move the goods off the lifting platform 4, thus realizing the loading and unloading of boxed goods. When loading and unloading special vehicles, the climbing drive component 207 is opened, and the piston rod of the climbing drive component 207 extends to drive the climbing support plate 206 to rotate. The climbing support plate 206 rotates and overlaps the rear of the semi-trailer body 1. At this time, the special vehicle can climb onto the flatbed of the semi-trailer body 1 along the climbing support plate 206.

[0030] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0031] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0032] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A novel low-flatbed semi-trailer, characterized in that: The system includes a semi-trailer body (1), a lifting support frame (2), a lifting connecting rod (3), a lifting platform (4), an installation warning unit, and a loading switching mechanism. Two sets of lifting support frames (2) are provided, each fixedly connected to the left and right rear sides of the semi-trailer body (1). Two sets of lifting connecting rods (3) are provided, each located on the left and right rear sides of the semi-trailer body (1). The lifting platform (4) is welded below the lifting connecting rods (3). The installation warning unit is located behind the lifting connecting rods (3). The loading switching mechanism is located above the lifting platform (4).

2. The novel low-flatbed semi-trailer as described in claim 1, characterized in that: The installation warning unit includes: loading and unloading warning lights (101); two sets of loading and unloading warning lights (101) are provided, and the two sets of loading and unloading warning lights (101) are fixedly connected to the left and right sides of the lifting connecting rod (3).

3. The novel low-flatbed semi-trailer as described in claim 1, characterized in that: The loading switching mechanism includes: a first lifting link (201) and a second lifting link (202); the first lifting link (201) is provided in two sets, and the two sets of first lifting links (201) are respectively hinged to the front end of the lifting connecting rod (3), and the front end of the two sets of first lifting links (201) is respectively hinged to the lifting support frame (2); the second lifting link (202) is provided in two sets, and the two sets of second lifting links (202) are respectively hinged to the front end of the lifting connecting rod (3), and the front end of the two sets of second lifting links (202) is respectively hinged to the lifting support frame (2), and the second lifting link (202) and the first lifting link (201) together form a parallelogram structure.

4. The novel low-flatbed semi-trailer as described in claim 3, characterized in that: The loading switching mechanism also includes: a lifting drive link (203) and a lifting drive component (204); the lifting drive link (203) is provided in two sets, and the two sets of lifting drive links (203) are respectively fixedly connected to the rear end of the first lifting link (201); the lifting drive component (204) is provided in two sets, and the two sets of lifting drive components (204) are both hydraulic cylinder structures. The two sets of lifting drive components (204) are respectively hinged to the outside of the lifting support frame (2), and the piston rod structure of the two sets of lifting drive components (204) is respectively hinged to the lifting drive link (203).

5. The novel low-flatbed semi-trailer as described in claim 4, characterized in that: The loading switching mechanism also includes: a climbing connecting rod (205) and a climbing support plate (206); there are two sets of climbing connecting rods (205), and the two sets of climbing connecting rods (205) are fixedly connected to the rear of the lifting connecting rod (3); there are two sets of climbing support plates (206), and the two sets of climbing support plates (206) are hinged to the inner side of the climbing connecting rod (205).

6. The novel low-flatbed semi-trailer as described in claim 5, characterized in that: The loading switching mechanism also includes a climbing drive (207); the climbing drive (207) is provided in two sets, both sets of climbing drive (207) are hydraulic cylinder structures, the two sets of climbing drive (207) are respectively hinged to the outside of the lifting connecting rod (3), and the piston rod structure of the two sets of climbing drive (207) is respectively hinged to the climbing support plate (206).

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