High-low plate semitrailer capable of longitudinally transporting cargoes with circular sections
By designing a gooseneck main frame and movable floor structure, the problem of securing round-section cargo in high-low bed semi-trailers was solved, enabling stable transportation of round-section cargo and improving transportation safety and flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-10
AI Technical Summary
Existing low-bed semi-trailers have difficulty securing round-section goods such as steel coils, leading to the risk of rolling during transportation and posing a potential traffic accident hazard.
A high-low flatbed semi-trailer capable of longitudinally transporting goods with circular cross-sections was designed. It adopts a gooseneck main frame, front and rear fixed platforms, and movable floor structure. The floor can be adjusted in various forms through telescopic cylinders and foldable side floor plates to meet the fixing requirements of different goods.
It achieves stable fixation of goods with circular cross-sections, reduces the risk of rolling during transportation, enhances transportation safety and flexibility, and is suitable for the transportation needs of various goods.
Smart Images
Figure CN223982590U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high and low bed semi-trailers, specifically to a high and low bed semi-trailer capable of longitudinally transporting goods with a circular cross-section. Background Technology
[0002] Currently, the goods transported by low-bed semi-trailers on the market are relatively monotonous, usually only containers, excavators and other easily secured goods. However, some drivers use ordinary low-bed semi-trailers to transport steel coils in order to save costs. However, steel coils are usually difficult to secure, and there is often a risk of them rolling around and causing traffic accidents during transportation. Utility Model Content
[0003] The purpose of this utility model is to provide a high-low bed semi-trailer that can transport goods with circular cross-sections longitudinally, in order 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 low-bed semi-trailer capable of longitudinally transporting goods with a circular cross-section includes a gooseneck main frame, a front fixed platform located at the upper front end of the gooseneck main frame, and a rear fixed platform located at the upper rear end of the gooseneck main frame. The upper part of the rear fixed platform is provided with several movable base plates. Each movable base plate includes a middle base plate and two foldable side base plates symmetrically arranged on the left and right sides of the middle base plate. Each movable base plate has two states. In the first state, the movable base plate is horizontally attached to the rear fixed platform. In the second state, there is an angle between the movable base plate and the rear fixed platform.
[0006] Furthermore, one side of each of the foldable side base plates is hinged to the corresponding middle base plate via a connecting pin, and the other side is hinged to the gooseneck main frame via several telescopic hydraulic cylinders.
[0007] Furthermore, each of the foldable side base plates is provided with several upper cylinder seats, and the left and right sides of the gooseneck main frame are provided with several lower cylinder seats. The upper end of each telescopic cylinder is hinged to a corresponding upper cylinder seat, and the lower end of each telescopic cylinder is hinged to a corresponding lower cylinder seat.
[0008] Furthermore, each of the cylinder upper seats is hinged to the upper end of the corresponding telescopic cylinder via a cylinder upper pivot pin.
[0009] Furthermore, each of the lower cylinder bases is hinged to the lower end of the corresponding telescopic cylinder via a cylinder pivot pin.
[0010] Furthermore, the gooseneck main frame is equipped with two foldable ladders at its rear end.
[0011] Compared with the prior art, the advantages of this utility model are as follows:
[0012] 1. It has multiple configurations and can be used as a low-bed semi-trailer or a round-section cargo semi-trailer. When used as a regular low-bed semi-trailer, it can lower the center of gravity of the vehicle and transport a 20-foot container, special large equipment (excavators, etc.), and various bulk cargo. When used as a round-section cargo semi-trailer, it can transport round tanks, steel coils, steel pipes, and various bulk cargo.
[0013] 2. Compared to ordinary low-bed semi-trailers, they can transport a wider variety of media. Attached Figure Description
[0014] 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.
[0015] Figure 1 This is a schematic diagram of the structure of the high-low flatbed semi-trailer capable of longitudinally transporting goods with a circular cross-section, provided in this embodiment of the present invention, in its first state.
[0016] Figure 2 This is a side view of the high-low flatbed semi-trailer capable of longitudinally transporting goods with a circular cross-section, provided in this embodiment of the utility model, in its first state.
[0017] Figure 3 yes Figure 2 Sectional view of AA;
[0018] Figure 4 This is a schematic diagram of the structure of the high-low flatbed semi-trailer capable of longitudinally transporting goods with a circular cross-section, provided in this embodiment of the present invention, in its second state.
[0019] Figure 5 This is a side view of the high-low flatbed semi-trailer capable of longitudinally transporting goods with a circular cross-section, provided in this embodiment of the utility model, in its second state.
[0020] Figure 6 yes Figure 5 BB section view;
[0021] Figure 7 This is a schematic diagram of the use of the high-low flatbed semi-trailer capable of longitudinally transporting goods with a circular cross-section, provided in this embodiment of the utility model, in the second state;
[0022] Figure 8 yes Figure 7 CC section view;
[0023] Figure 9 yes Figure 6 A magnified view of a portion of the image;
[0024] Explanation of reference numerals in the attached drawings: 1. Gooseneck main frame; 2. Front fixed platform; 3. Rear fixed platform; 4. Movable base plate; 401. Middle base plate; 402. Foldable side base plate; 403. Connecting pin; 404. Telescopic cylinder; 405. Upper cylinder seat; 406. Lower cylinder seat; 407. Upper cylinder pivot pin; 408. Lower cylinder pivot pin; 5. Foldable ladder; 6. Circular cross-section cargo. Detailed Implementation
[0025] 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.
[0026] 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.
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] like Figures 1 to 9 As shown, this utility model embodiment provides a vehicle that includes a gooseneck main frame 1, a front fixed platform 2 disposed at the upper front end of the gooseneck main frame 1, and a rear fixed platform 3 disposed at the upper rear end of the gooseneck main frame 1. The upper part of the rear fixed platform 3 is provided with a plurality of movable base plates 4 along its length direction, and each movable base plate 4 includes a middle base plate 401 and two foldable side base plates 402 symmetrically disposed on the left and right sides of the middle base plate 401. Each movable base plate 4 has two states; in the first state, the movable base plate 4 is in a horizontally fitted state with the rear fixed platform 3, and in the second state, there is an angle between the movable base plate 4 and the rear fixed platform 3.
[0029] Specifically, in this embodiment, such as Figure 9 As shown, one side of each foldable side base plate 402 is hinged to the corresponding middle base plate 401 via a connecting pin 403, and the other side is hinged to the gooseneck main frame 1 via several telescopic cylinders 404; each middle base plate 401 is hinged to the gooseneck main frame 1.
[0030] Specifically, in this embodiment, such as Figure 9 As shown, each foldable side base plate 402 is provided with several upper cylinder seats 405, and the left and right sides of the gooseneck main frame 1 are provided with several lower cylinder seats 406. The upper end of each telescopic cylinder 404 is hinged to a corresponding upper cylinder seat 405, and the lower end of each telescopic cylinder 404 is hinged to a corresponding lower cylinder seat 406.
[0031] Specifically, in this embodiment, such as Figure 9 As shown, each cylinder upper seat 405 is hinged to the upper end of the corresponding telescopic cylinder 404 via a cylinder upper pivot pin 407.
[0032] Specifically, in this embodiment, such as Figure 9 As shown, each cylinder lower seat 406 is hinged to the lower end of the corresponding telescopic cylinder 404 via a cylinder lower pivot pin 408.
[0033] Specifically, in this embodiment, the rear end of the gooseneck main frame 1 is provided with two foldable ladders 5. The foldable ladders 5 facilitate loading and unloading of goods.
[0034] The low-bed semi-trailer provided by this utility model, which can longitudinally transport goods with a circular cross-section, has the following two usage modes in actual work:
[0035] The first state, namely the ordinary high-low plank semi-trailer state, is characterized by the two foldable side bottom plates 402 of the movable bottom plate 4 being completely fitted with the rear fixed platform 3, and the telescopic cylinder 404 being in the retracted state. At this time, the entire movable bottom plate 4 and the rear fixed platform 3 are in a horizontally fitted state. Figures 1 to 3 As shown.
[0036] The second state is the circular cross-section cargo transportation state. In this state, there is a certain angle between the two foldable side base plates 402 of the movable base plate 4 and the rear fixed platform 3, and the telescopic cylinder 404 is in the extended state. At this time, the entire movable base plate 4 presents a V-shaped angle state, such as... Figures 4 to 9 As shown, in this state, the vehicle can be used to transport goods with a circular cross-section 6.
[0037] 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 high-low platform semi-trailer capable of transporting round cross-section cargo longitudinally, comprising a gooseneck main frame (1) and a front fixed platform (2) arranged on the upper part of the front end of the gooseneck main frame (1) and a rear fixed platform (3) arranged on the upper part of the rear end of the gooseneck main frame (1), characterized in that: The rear fixed platform (3) is provided with a plurality of movable bottom plates (4) on the upper portion, each of the movable bottom plates (4) comprises a middle bottom plate (401) and two foldable side bottom plates (402) symmetrically arranged on the left and right sides of the middle bottom plate (401), each movable bottom plate (4) has two states, in the first state, the movable bottom plate (4) is horizontally attached to the rear fixed platform (3), and in the second state, there is an included angle between the movable bottom plate (4) and the rear fixed platform (3).
2. The high-low bed semitrailer for longitudinal transport of circular cross-section cargo according to claim 1, characterized in that: Each of the foldable side bottom plates (402) is hingedly connected to the corresponding middle bottom plate (401) on one side through a connecting bolt (403) and is hingedly connected to the swan-neck main vehicle frame (1) on the other side through a plurality of telescopic oil cylinders (404).
3. The high-low bed semitrailer for longitudinal transport of circular cross-section cargo according to claim 2, characterized in that: Each of the foldable side bottom plates (402) is provided with a plurality of oil cylinder upper seats (405), the left and right sides of the swan-neck main vehicle frame (1) are provided with a plurality of oil cylinder lower seats (406), the upper end of each telescopic oil cylinder (404) is hingedly connected to one oil cylinder upper seat (405), and the lower end of each telescopic oil cylinder (404) is hingedly connected to one oil cylinder lower seat (406).
4. The high-low bed semitrailer for longitudinal transport of circular cross-section cargo according to claim 3, characterized in that: Each of the oil cylinder upper seats (405) is hingedly connected to the upper end of the corresponding telescopic oil cylinder (404) through an oil cylinder upper rotating pin (407).
5. The high-low bed semitrailer for the longitudinal transport of circular cross-section cargo according to claim 3, characterized in that: Each of the oil cylinder lower seats (406) is hingedly connected to the lower end of the corresponding telescopic oil cylinder (404) through an oil cylinder lower rotating pin (408).
6. The high-low bed semitrailer for the longitudinal transport of circular cross-section cargo according to claim 1, characterized in that: The tail end of the swan-neck main vehicle frame (1) is provided with two foldable climbing ladders (5).