Independent suspension trailer

Abstract

The utility model belongs to the technical field of trailers, and particularly relates to an independent suspension trailer which comprises a frame and wheels, a traction seat is fixedly connected to the front end of the frame, the wheels are mounted in the frame, a suspension mechanism is arranged between the frame and the wheels, the suspension mechanism comprises a fixing frame, an oil cylinder, a shock absorber, a swing arm and a mounting seat, and the oil cylinder is fixedly connected with the mounting seat. Fixing frames are connected to the left ends and the right ends of the front side and the rear side of the vehicle frame through bolts, swing arms are rotationally connected to the ends, away from each other, of the fixing frames on the front side and the rear side, shock absorbers are rotationally connected between the sides, close to each other, of the fixing frames on the front side and the rear side and the lower ends of the swing arms, and oil cylinders are rotationally connected to the upper ends of the swing arms. According to the four-wheel independent suspension trailer, a balance point is found in the manufacturing cost and the suspension function of the trailer, four-wheel independent suspension is adopted for the trailer, the manufacturing cost is relatively low, and meanwhile the trailer has the good damping effect.

Description

Technical Field

[0001] The utility model relates to the field of trailers, in particular to an independent suspension trailer. Background Art

[0002] There are many types of trailers, and their basic structure is roughly the same, including a frame and wheels. The frame is connected to the wheels, the frame is used to place objects, and a traction frame is provided at one end of the frame for pulling the cart. Some items carried by the trailer, such as tricycles, tables and chairs, are not easy to put into the vehicle for carrying.

[0003] When existing trailers adopt independent suspension, most of them have complex structures, relatively high manufacturing costs, and are difficult to install and maintain. Therefore, the utility model provides an independent suspension trailer. Utility Model Content

[0004] The purpose of the utility model is to provide an independent suspension trailer to solve the above problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an independent suspension trailer comprises a frame and wheels, the front end of the frame is fixedly connected with a traction seat, the frame is installed with wheels, a suspension mechanism is arranged between the frame and the wheels, the suspension mechanism comprises a fixing frame, a cylinder, a shock absorber, a swing arm and a mounting seat, the left and right ends of the front and rear sides of the frame are connected with fixing frames by bolts, the ends of the fixing frames on the front and rear sides that are away from each other are rotatably connected with the swing arms, the sides of the fixing frames on the front and rear sides that are close to each other and the lower end of the swing arms are rotatably connected with the shock absorbers, the upper end of the swing arms is rotatably connected with the cylinder, the front and rear sides of the frame are installed with fixed shafts, the left and right ends of the fixed shafts are rotatably connected with the mounting seats, the telescopic end of the cylinder is rotatably connected with the mounting seat, and the wheels are rotatably connected in the mounting seat.

[0006] Preferably, the front and rear ends of the frame are respectively fixedly connected with a front baffle and a rear baffle.

[0007] Preferably, a storage box is fixedly connected to the front end of the frame.

[0008] Preferably, a protective cover is connected to the frame by bolts, and the fixing frame, swing arm, shock absorber and oil cylinder are located in the protective cover.

[0009] Preferably, the ends of the fixing frames at the front and rear sides close to each other are both provided with connecting heads, and the shock absorber is rotatably connected to the connecting heads.

[0010] Preferably, the number of shock absorbers in the suspension mechanism is two, a pin is fixedly connected to the upper end of the swing arm, and the oil cylinder is rotatably connected to the pin.

[0011] Preferably, the swing arm is rotatably connected to the fixing frame via a rotating shaft, and the rotating end is located at the upper middle portion of the swing arm.

[0012] Preferably, a fender is connected to the upper side of the mounting seat via bolts, and a support rod is connected between the fender and the mounting seat via bolts.

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

[0014] 1) The utility model finds a balance between the manufacturing cost of the trailer and its suspension function. The trailer adopts four-wheel independent suspension, which has a relatively low manufacturing cost and enables the trailer to have a good shock absorption effect;

[0015] 2) The wheel is installed in the mounting seat, and the mounting seat can rotate along the fixed axis. The shock absorber cooperates with the setting of the swing arm and the oil cylinder to limit the movement of the mounting seat and at the same time, it can play a shock-absorbing effect. The structure is compact and reasonable, the manufacturing cost is relatively low, and it is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the first structure of the suspension mechanism of the utility model;

[0018] Figure 3 This is a second structural schematic diagram of the suspension mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the fixing frame of the utility model.

[0020] In the figure: 1. frame; 2. front fender; 3. rear fender; 4. storage box; 5. traction seat; 6. protective cover; 7. wheel; 8. suspension mechanism; 9. fixing frame; 10. connector; 11. swing arm; 12. oil cylinder; 13. fixed shaft; 14. mounting seat; 15. mudguard; 16. support rod; 17. shock absorber; 18. pin shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Example:

[0025] See also Figure 1-4 The utility model provides a technical solution: an independent suspension trailer, including a frame 1 and wheels 7. A traction seat 5 is fixedly connected to the front end of the frame 1 for connecting an external vehicle to tow the trailer for movement. Wheels 7 are installed in the frame 1, and the number of wheels 7 is four. A suspension mechanism 8 is arranged between the frame 1 and the wheels 7. The suspension mechanism 8 includes a fixing frame 9, a cylinder 12, a shock absorber 17, a swing arm 11 and a mounting seat 14. The left and right ends of the front and rear sides of the frame 1 are both connected to the fixing frames 9 by bolts. The ends of the fixing frames 9 on the front and rear sides that are away from each other (the side away from the wheel 7) are rotatably connected to the swing arm 11. A shock absorber 17 is rotatably connected between the fixed frames 9 on the rear sides (the side close to each other and the side close to the wheel 7) and the lower end of the swing arm 11, and the upper end of the swing arm 11 is rotatably connected to the cylinder 12. Fixed shafts 13 are installed on the front and rear sides of the frame 1, and the fixed shafts 13 are fixed by bolts or the like. The fixed shafts 13 are relatively fixed to the frame 1, and the left and right ends of the fixed shafts 13 are rotatably connected to mounting seats 14. The telescopic end of the cylinder 12 is rotatably connected to the mounting seat 14, and the mounting seat 14 is rotatably connected to the wheel 7, so that the wheel 7 can maintain its own rotation while cooperating with the mounting seat 14 to rotate a certain distance along the fixed shaft 13.

[0026] The front and rear ends of the frame 1 are respectively fixedly connected with a front baffle 2 and a rear baffle 3 .

[0027] A storage box 4 is fixedly connected to the front end of the frame 1 and can be used to store tools.

[0028] A protective cover 6 is connected to the vehicle frame 1 by bolts, and a fixing frame 9, a swing arm 11, a shock absorber 17 and an oil cylinder 12 are located in the protective cover 6.

[0029] A connector 10 is disposed at one end of the fixing frames 9 on both the front and rear sides close to each other, and the shock absorber 17 is rotatably connected to the connector 10 .

[0030] There are two shock absorbers 17 in the suspension mechanism 8 . A pin shaft 18 is fixedly connected to the upper end of the swing arm 11 , and the oil cylinder 12 is rotatably connected to the pin shaft 18 .

[0031] The swing arm 11 is rotatably connected to the fixing frame 9 via a rotating shaft, and the rotating end is located at the upper middle portion of the swing arm 11 .

[0032] A fender 15 is connected to the upper side of the mounting seat 14 via bolts, and a support rod 16 is connected between the fender 15 and the mounting seat 14 via bolts.

[0033] Working principle: the wheel 7 is installed in the mounting seat 14, and the mounting seat 14 can rotate along the fixed axis 13. The shock absorber 17 cooperates with the setting of the swing arm 11 and the cylinder 12 to limit the movement of the mounting seat 14 and achieve a shock absorbing effect. The structure is compact and reasonable, the manufacturing cost is relatively low, and it is easy to install and maintain. A balance is found between the manufacturing cost and the suspension function. The trailer adopts four-wheel independent suspension, which has a relatively low manufacturing cost and a good shock absorbing effect.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An independent suspension trailer, comprising a frame (1) and wheels (7), characterized in that: The front end of the vehicle frame (1) is fixedly connected to a traction seat (5), a wheel (7) is installed in the vehicle frame (1), a suspension mechanism (8) is arranged between the vehicle frame (1) and the wheel (7), the suspension mechanism (8) comprises a fixing frame (9), a cylinder (12), a shock absorber (17), a swing arm (11) and a mounting seat (14), the left and right ends of the front and rear sides of the vehicle frame (1) are both connected to the fixing frame (9) by bolts, and the ends of the fixing frames (9) on the front and rear sides that are away from each other are both rotatably connected to A swing arm (11), a shock absorber (17) is rotatably connected between the sides of the fixed frames (9) on the front and rear sides close to each other and the lower end of the swing arm (11), the upper end of the swing arm (11) is rotatably connected to an oil cylinder (12), the front and rear sides of the frame (1) are both equipped with fixed shafts (13), the left and right ends of the fixed shaft (13) are both rotatably connected to mounting seats (14), the telescopic end of the oil cylinder (12) is rotatably connected to the mounting seat (14), and the mounting seat (14) is rotatably connected to a wheel (7).

2. An independent suspension trailer according to claim 1, characterized in that: The front and rear ends of the vehicle frame (1) are respectively fixedly connected with a front baffle (2) and a rear baffle (3).

3. The independent suspension trailer according to claim 1, characterized in that: A storage box (4) is fixedly connected to the front end of the vehicle frame (1).

4. The independent suspension trailer according to claim 1, characterized in that: A protective cover (6) is connected to the vehicle frame (1) via bolts, and the fixing frame (9), the swing arm (11), the shock absorber (17) and the oil cylinder (12) are located in the protective cover (6).

5. The independent suspension trailer according to claim 1, characterized in that: The ends of the fixing frames (9) on the front and rear sides close to each other are both provided with connecting heads (10), and the shock absorber (17) is rotatably connected to the connecting head (10).

6. The independent suspension trailer according to claim 5, characterized in that: The number of shock absorbers (17) in the suspension mechanism (8) is two, the upper end of the swing arm (11) is fixedly connected with a pin shaft (18), and the oil cylinder (12) is rotatably connected to the pin shaft (18).

7. The independent suspension trailer according to claim 1, characterized in that: The swing arm (11) is rotatably connected to the fixing frame (9) via a rotating shaft, and the rotating end is located at the upper middle portion of the swing arm (11).

8. The independent suspension trailer according to claim 1, characterized in that: A fender (15) is connected to the upper side of the mounting seat (14) via bolts, and a support rod (16) is connected between the fender (15) and the mounting seat (14) via bolts.

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