Lightweight trailer suspension and trailer

Abstract

The utility model is applicable to the technical field of trailer structures, and provides a light-weight trailer suspension and a trailer, the light-weight trailer suspension comprises a fixed seat fixedly connected to the bottom of a frame, the lower part of the outer side surface of the fixed seat is transversely and rotatably connected with a cross frame, and a rubber buffer block is vertically and fixedly connected between the surface of the other end of the cross frame and the lower surface of the frame. According to the light-weight trailer suspension and the trailer, the rubber buffer block is arranged, the suspension of the trailer uses the rubber buffer block as a buffer structure, when the suspension of the trailer is impacted, the transverse frame can move upwards, the front end of the transverse frame is hinged to the fixed seat, so that the rear end of the transverse frame can extrude the rubber buffer block, and the rubber buffer block has certain deformability; the suspension can absorb impact force and recover quickly to achieve the buffering effect, the rubber buffering block is made of rubber, the weight of the rubber buffering block is far smaller than that of a steel spring plate, and therefore the overall weight of the trailer is reduced, the suspension is simple in structure, the rubber buffering block is convenient to replace, and normal use of the trailer cannot be affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of trailer structures, and particularly relates to a lightweight trailer suspension and a trailer. Background Art

[0002] A trailer refers to a vehicle that is towed by an automobile and has no power drive device itself. It is a combination of an automobile (truck or tractor, forklift) and one or more trailers. The truck and the tractor are the driving sections of the vehicle train and are called the main vehicle. The trailing moving section towed by the main vehicle is called a trailer. It is an important vehicle type in road transportation. Using a vehicle train for transportation is the most effective and simple important means to improve economic benefits. It has the advantages of being fast, flexible, safe, etc.; it can conveniently achieve sectional transportation.

[0003] The overall weight of the goods transported by the trailer is relatively large, so there are requirements for the bearing capacity of the trailer suspension. Generally, the buffer structure of the trailer suspension is mainly composed of leaf springs. This kind of structure has strong bearing capacity, but due to material reasons, its own weight is also relatively heavy, resulting in a relatively large overall weight of the trailer. Content of the Utility Model

[0004] The utility model provides a lightweight trailer suspension and a trailer, aiming to solve the problem that the buffer structure of the general trailer suspension is mainly composed of leaf springs. This kind of structure has strong bearing capacity, but due to material reasons, its own weight is also relatively heavy, resulting in a relatively large overall weight of the trailer.

[0005] The utility model is realized as follows. A lightweight trailer suspension includes a fixed seat fixedly connected to the bottom of the vehicle frame. The lower part of the outer surface of the fixed seat is horizontally rotatably connected with a cross frame. A rubber buffer block is vertically fixedly connected between the surface of the other end of the cross frame and the lower surface of the vehicle frame. The middle part of the lower surface of the cross frame is fixedly connected with an extension block. The upper part of the outer surface of the fixed seat is horizontally fixedly connected with an extension bolt. A hydraulic rod is hinged to the outer surface of the extension bolt, and the other end of the hydraulic rod is hinged to the outer surface of the extension block.

[0006] Preferably, a lower protection plate is vertically fixedly connected to the rear end of the upper surface of the cross frame and behind the rubber buffer block.

[0007] Preferably, an upper protection plate is vertically fixedly connected between the lower surface of the vehicle frame and between the rubber buffer block and the lower protection plate.

[0008] A trailer includes two main frames arranged in parallel. The rear ends of the two main frames extend to both sides respectively. A plurality of inner connecting frames are horizontally fixedly connected between the two main frames. The plurality of inner connecting frames are evenly spaced along the length direction of the two main frames. An installation plate is horizontally fixedly connected between the two inner connecting frames at the rearmost end.

[0009] Preferably, a front frame and a rear frame of the vehicle are fixedly connected to the front end and the rear end of the two main frames respectively.

[0010] Preferably, a plurality of outer connecting frames are horizontally and fixedly connected to the outer surfaces of the two main frames. The outer end surfaces of the plurality of outer connecting frames on the same side are horizontally and fixedly connected with protective plates, and a plurality of mudguards are fixedly connected to the outer surfaces of the two main frames.

[0011] Beneficial effects

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: in a lightweight trailer suspension and trailer of the present utility model, by providing rubber buffer blocks, the suspension of the trailer uses the rubber buffer blocks as buffer structures. When being impacted, the cross frame will move upward. Since its front end is hinged on the fixed seat, its rear end will squeeze the rubber buffer blocks. The rubber buffer blocks have a certain deformation ability, can absorb the impact force and quickly recover, so as to achieve the buffer effect. And the material of the rubber buffer blocks is rubber, and the weight is much less than that of the spring steel plate, thus reducing the overall weight of the trailer. And the suspension structure is relatively simple, and the rubber buffer blocks are convenient to replace and will not affect the normal use of the trailer. Description of the drawings

[0013] Figure 1 It is a schematic structural diagram of the suspension of the present utility model;

[0014] Figure 2 It is a schematic top view structural diagram of the trailer in the present utility model;

[0015] Figure 3 It is a schematic structural diagram of the inner connecting frame in the present utility model.

[0016] In the figure: 1 - fixed seat, 2 - cross frame, 3 - hydraulic rod, 4 - extension block, 5 - rubber buffer block, 6 - lower protection plate, 7 - upper protection plate, 8 - main frame, 9 - inner connecting frame, 10 - mounting plate, 11 - rear frame of the vehicle, 12 - front frame of the vehicle, 13 - outer connecting frame, 14 - protective plate, 15 - mudguard, 16 - weight reduction hole. Specific embodiments

[0017] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0018] Please refer to Figures 1-3, the present utility model provides a technical solution: a lightweight trailer suspension, including a fixed seat 1 fixedly connected to the bottom of the frame. The lower part of the outer surface of the fixed seat 1 is horizontally rotatably connected with a cross frame 2. A rubber buffer block 5 is vertically fixedly connected between the surface of the other end of the cross frame 2 and the lower surface of the frame. The middle part of the lower surface of the cross frame 2 is fixedly connected with an extension block 4. The upper part of the outer surface of the fixed seat 1 is horizontally fixedly connected with an extension bolt. The outer surface of the extension bolt is hinged with a hydraulic rod 3, and the other end of the hydraulic rod 3 is hinged to the outer surface of the extension block 4.

[0019] In this embodiment, the suspension of the trailer uses the rubber buffer block 5 as a buffer structure. When being impacted, the cross frame 2 will move upward. Since its front end is hinged to the fixed seat 1, its rear end will squeeze the rubber buffer block 5. The rubber buffer block 5 has a certain deformation ability, can absorb the impact force and quickly recover, so as to achieve the buffer effect. And the material of the rubber buffer block 5 is rubber, and its weight is much less than that of the spring steel plate, thus reducing the overall weight of the trailer. And the suspension structure is relatively simple, and the rubber buffer block is convenient to replace and will not affect the normal use of the trailer.

[0020] Furthermore, a lower protection plate 6 is vertically fixedly connected to the rear end of the upper surface of the cross frame 2 and behind the rubber buffer block 5.

[0021] An upper protection plate 7 is vertically fixedly connected to the lower surface of the frame and between the rubber buffer block 5 and the lower protection plate 6.

[0022] In this embodiment, the lower protection plate 6 and the upper protection plate 7 are staggered with each other, and both can protect the rear side surface of the rubber buffer block 5, preventing the mud and stones splashed up during the driving of the trailer from hitting the rubber buffer block 5, thereby prolonging its service time and improving its service life.

[0023] A trailer includes two main frames 8 arranged in parallel with each other. The rear ends of the two main frames 8 extend to both sides respectively. A plurality of inner connecting frames 9 are horizontally fixedly connected between the two main frames 8, and the plurality of inner connecting frames 9 are evenly spaced along the length direction of the two main frames 8. An installation plate 10 is horizontally fixedly connected between the two inner connecting frames 9 at the rearmost end.

[0024] In this embodiment, the rear ends of the two main frames 8 of the trailer extend to both sides respectively, so that the distance between the rear ends of the two main frames 8 becomes larger. By horizontally fixedly connecting the installation plate 10 between the two inner connecting frames 9 at this place, a spare tire can be carried through the installation plate 10, so that the trailer can immediately replace the tire when encountering a sudden flat tire during driving.

[0025] On one side surface of each of the multiple inner connecting frames 9, a plurality of weight-reducing holes 16 are transversely formed therethrough. The weight-reducing holes 16 can reduce the weight of the inner connecting frame 9 while ensuring its own strength, thereby reducing the overall weight of the trailer.

[0026] Further, a front frame 12 and a rear frame 11 are respectively fixedly connected to the front end and the rear end of the two main frames 8.

[0027] A plurality of outer connecting frames 13 are transversely and fixedly connected to the outer side surfaces of the two main frames 8. The outer end surfaces of the plurality of outer connecting frames 13 on the same side are transversely and fixedly connected with a protective plate 14, and a plurality of mudguards 15 are fixedly connected to the outer side surfaces of the two main frames 8.

[0028] In this embodiment, the front frame 12 and the rear frame 11 play a protective role. When other vehicles collide with the trailer, the front frame 12 and the rear frame 11 can absorb energy and buffer, reducing the damage degree of the main structure of the trailer.

[0029] The plurality of protective plates 14 can also play a protective effect, and the mudguards 15 can block the splashing mud to prevent it from splashing onto the goods carried by the trailer.

[0030] The working principle and usage process of the present utility model: After the present utility model is installed, the suspension of the trailer uses the rubber buffer block 5 as a buffer structure. When impacted, the cross frame 2 will move upward. Since its front end is hinged to the fixed seat 1, its rear end will squeeze the rubber buffer block 5. The rubber buffer block 5 has a certain deformation ability, can absorb the impact force and quickly recover, so as to achieve the buffer effect. And the material of the rubber buffer block 5 is rubber, and its weight is much less than that of the spring steel plate, thereby reducing the overall weight of the trailer. And the suspension structure is relatively simple, and the rubber buffer block is convenient to replace and will not affect the normal use of the trailer.

[0031] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lightweight trailer suspension, characterized in that: The invention comprises a fixing seat (1) fixedly connected to the bottom of a vehicle frame, the lower part of the outer surface of the fixing seat (1) is connected to a cross frame (2) in a rotatable manner in a transverse direction, and a rubber buffer block (5) is vertically fixedly connected between the surface of the other end of the cross frame (2) and the lower surface of the vehicle frame; an extension block (4) is fixedly connected to the middle part of the lower surface of the cross frame (2), an extension bolt is fixedly connected to the upper part of the outer surface of the fixing seat (1), a hydraulic rod (3) is hingedly connected to the outer surface of the extension bolt, and the other end of the hydraulic rod (3) is hingedly connected to the outer surface of the extension block (4).

2. A lightweight trailer suspension according to claim 1, characterized in that: A lower protection plate (6) is vertically fixedly connected to the rear end of the upper surface of the cross frame (2) and located at the rear of the rubber buffer block (5).

3. A lightweight trailer suspension according to claim 2, characterized in that: An upper protection plate (7) is vertically fixedly connected to the lower surface of the vehicle frame and is located between the rubber buffer block (5) and the lower protection plate (6).

4. A trailer, characterized in that: The invention comprises two main frames (8) arranged parallel to each other, the rear ends of the two main frames (8) respectively extending to both sides, a plurality of inner connecting frames (9) are transversely fixedly connected between the two main frames (8), the plurality of inner connecting frames (9) are evenly spaced along the length direction of the two main frames (8), and a mounting plate (10) is transversely fixedly connected between the two inner connecting frames (9) at the rearmost ends.

5. A trailer according to claim 4, characterized in that: The front and rear ends of the two main frames (8) are respectively fixedly connected to a front frame (12) and a rear frame (11).

6. A trailer as claimed in claim 4, characterized in that: The outer surfaces of the two main frames (8) are both transversely fixedly connected to a plurality of external connection frames (13), the outer end surfaces of the plurality of external connection frames (13) on the same side are both transversely fixedly connected to a protective plate (14), and the outer surfaces of the two main frames (8) are both fixedly connected to a plurality of mudguards (15).

Images