High-low plate semitrailer with liftable platform

Abstract

The utility model discloses a high-low plate semitrailer with a liftable platform, which comprises a gooseneck type main frame, a fixing platform arranged at the upper part of the front end of the gooseneck type main frame, and a liftable platform arranged at the upper part of the rear end of the gooseneck type main frame, and the liftable platform has two states; in the first state, the liftable platform is lower than the fixed platform; and in the second state, the liftable platform is flush with the fixed platform. The semitrailer has the advantages that the semitrailer has various forms, can be used as a high-low plate semitrailer and can also be used as a flat plate semitrailer; and compared with a common high-low plate semi-trailer or a flat plate semi-trailer, the transported media are more diversified.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, specifically to a high-low plank semi-trailer with a liftable platform. Background Technology

[0002] Currently, the front platform of low-bed semi-trailers on the market is relatively small and higher than the rear platform, resulting in low utilization when loading goods. Although the platform of a regular flatbed semi-trailer is a flat surface that can carry more goods, its center of gravity is high, posing a risk of rollover when transporting taller goods. Utility Model Content

[0003] The purpose of this utility model is to provide a high-low bed semi-trailer with a liftable platform to solve the technical problems existing in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A liftable low-bed semi-trailer includes a gooseneck main frame and a fixed platform disposed on the upper front end of the gooseneck main frame, and also includes a liftable platform disposed on the upper rear end of the gooseneck main frame. The liftable platform has two states: in the first state, the liftable platform is lower than the fixed platform; in the second state, the liftable platform is flush with the fixed platform.

[0006] Furthermore, the liftable platform is connected to the gooseneck main frame via several lifting cylinders.

[0007] Furthermore, the liftable platform is provided with several upper cylinder seats, and the gooseneck main frame is provided with several lower cylinder seats. The upper cylinder seats are connected to the upper ends of the lifting cylinders in a one-to-one correspondence, and the lower cylinder seats are connected to the lower ends of the lifting cylinders in a one-to-one correspondence.

[0008] Furthermore, each of the cylinder upper seats is hinged to the upper end of the corresponding lifting cylinder via a cylinder upper pivot pin.

[0009] Furthermore, each of the lower cylinder bases is hinged to the lower end of the corresponding lifting cylinder via a cylinder pivot pin.

[0010] Compared with the prior art, the advantages of this utility model are as follows:

[0011] 1. It has multiple configurations and can be used as a low-bed semi-trailer or a flatbed semi-trailer. When used as a low-bed semi-trailer, it can lower the center of gravity of the vehicle and transport one 20-foot container, special large equipment (such as excavators), and various logistics bulk cargo. When used as a flatbed semi-trailer, it can improve the vehicle's loading utilization rate and transport two 20-foot containers, special large equipment, and various logistics bulk cargo.

[0012] 2. Compared to ordinary low-bed semi-trailers or flatbed semi-trailers, the transport media are more diverse. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the description of the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram from one perspective of the platform liftable high and low bed semi-trailer provided in this embodiment of the utility model when it is in the high and low bed semi-trailer state;

[0015] Figure 2 This is a structural schematic diagram from another perspective of the platform-liftable high and low bed semi-trailer provided in this embodiment of the utility model when it is in the high and low bed semi-trailer state;

[0016] Figure 3 This is a cross-sectional view of the platform-liftable high and low bed semi-trailer provided in this embodiment of the utility model when it is in the high and low bed semi-trailer state.

[0017] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a structural schematic diagram from one perspective of the platform lifting and lowering high and low flatbed semi-trailer in the flatbed semi-trailer state provided in this embodiment of the utility model;

[0019] Figure 6 This is a structural schematic diagram from another perspective of the platform-liftable high and low flatbed semi-trailer provided in this embodiment of the utility model when it is in flatbed semi-trailer state;

[0020] Figure 7 This is a cross-sectional view of the platform-liftable high and low flatbed semi-trailer provided in this embodiment of the utility model when it is in a flatbed semi-trailer state;

[0021] Figure 8 yes Figure 7 Enlarged view at point B in the middle;

[0022] Explanation of reference numerals in the attached diagram: 1. Gooseneck main frame; 2. Fixed platform; 3. Liftable platform; 4. Lifting cylinder; 5. Upper cylinder seat; 6. Lower cylinder seat; 7. Upper cylinder pivot pin; 8. Lower cylinder pivot pin. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1 to 8 As shown, this utility model embodiment provides a high-low platform semi-trailer with a liftable platform, including a gooseneck main frame 1, a fixed platform 2 disposed on the upper front end of the gooseneck main frame 1, and a liftable platform 3 disposed on the upper rear end of the gooseneck main frame 1. The liftable platform 3 has two states (high-low platform semi-trailer state and flatbed semi-trailer state); in the first state (i.e., high-low platform semi-trailer state), the liftable platform 3 is lower than the fixed platform 2; in the second state (i.e., flatbed semi-trailer state), the liftable platform 3 is flush with the fixed platform 2.

[0027] Specifically, in this embodiment, as Figure 2 As shown, the liftable platform 3 is connected to the gooseneck main frame 1 via several lifting cylinders 4. The lifting cylinders 4 allow the liftable platform 3 to rise or fall, enabling free switching between high / low bed semi-trailer and flatbed semi-trailer modes, thus achieving multi-purpose functionality and meeting diverse transportation needs.

[0028] Specifically, in this embodiment, as Figure 3 , Figure 7 As shown, the liftable platform 3 is equipped with several upper cylinder seats 5, and the gooseneck main frame 1 is equipped with several lower cylinder seats 6. The upper cylinder seats 5 are connected to the upper ends of several lifting cylinders 4 in a one-to-one correspondence, and the lower cylinder seats 6 are connected to the lower ends of several lifting cylinders 4 in a one-to-one correspondence.

[0029] Specifically, in this embodiment, as Figure 4 As shown, each cylinder upper seat 5 is hinged to the upper end of the corresponding lifting cylinder 4 via a cylinder upper pivot pin 7.

[0030] Specifically, in this embodiment, as Figure 8 As shown, each cylinder lower seat 6 is hinged to the lower end of the corresponding lifting cylinder 4 via a cylinder lower pivot pin 8.

[0031] The platform-liftable low-bed semi-trailer provided by this utility model has the following two usage states in actual work:

[0032] In the first state, namely the semi-trailer state with a high and low platform, the lifting cylinder is in the retracted state. At this time, the liftable platform 3 is lower than the fixed platform 2, creating a certain height difference between them. Figures 1 to 4 As shown. In this configuration, the vehicle can be used as a low-bed semi-trailer, which lowers the vehicle's center of gravity and allows it to transport one 20-foot container, special large equipment (such as excavators), and various bulk cargo.

[0033] The second state is the flatbed semi-trailer state. In this state, the lifting cylinder is in the extended state, and the liftable platform 3 is flush with the fixed platform 2, as shown below. Figures 5 to 8 As shown. In this state, the vehicle can be used as a flatbed semi-trailer, capable of transporting two 20-foot containers, special large equipment (excavators, etc.), and various bulk cargo.

[0034] Finally, it should be noted that the above description is only an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A platform-liftable high-low bed semi-trailer, comprising a gooseneck main frame (1) and a fixed platform (2) disposed on the upper front end of the gooseneck main frame (1), characterized in that: It also includes a liftable platform (3) located at the upper rear end of the gooseneck main frame (1), the liftable platform (3) having two states; in the first state, the liftable platform (3) is lower than the fixed platform (2); in the second state, the liftable platform (3) is flush with the fixed platform (2).

2. The platform-liftable low-bed semi-trailer according to claim 1, characterized in that: The liftable platform (3) is connected to the gooseneck main frame (1) via several lifting cylinders (4).

3. The platform-liftable low-bed semi-trailer according to claim 2, characterized in that: The liftable platform (3) is provided with several upper cylinder seats (5), and the gooseneck main frame (1) is provided with several lower cylinder seats (6). The upper cylinder seats (5) are connected to the upper ends of the several lifting cylinders (4) one by one, and the lower cylinder seats (6) are connected to the lower ends of the several lifting cylinders (4) one by one.

4. The platform-liftable low-bed semi-trailer according to claim 3, characterized in that: Each of the cylinder upper seats (5) is hinged to the upper end of the corresponding lifting cylinder (4) via a cylinder upper pivot pin (7).

5. The platform-liftable low-bed semi-trailer according to claim 3, characterized in that: Each of the cylinder lower seats (6) is hinged to the lower end of the corresponding lifting cylinder (4) via a cylinder lower pivot pin (8).

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