Front overhang assembly of amphibious vehicle

Abstract

The utility model discloses a front overhang assembly of an amphibious vehicle, which comprises brake support arms positioned on the left side and the right side and connected with wheels, each brake support arm comprises a fish eye head and a rotating head, and is characterized in that a support plate connected through a vertical frame support leg is arranged at the inclined height between the brake support arms on the left side and the right side; upper fork supporting arms and lower fork supporting arms are arranged between the brake supporting arms and the vertical frame supporting legs on the corresponding sides, the supporting plate is further connected with a middle support, the middle support is connected with an oil cylinder and a reinforcing plate in series through an upper shaft perpendicularly connected with the middle support, and the oil cylinder is further connected with a damping spring through an overturning plate; the front overhang assembly is simple in structure, reasonable in connection, stable and reliable, the whole front overhang assembly is more stable and firmer, the lifting, upturning and falling states are changed more smoothly through the reasonable and simple connection relation, occupied space is reduced, and cost is reduced. And the effect of lifting the front wheel is achieved by vertically moving through the oil cylinder, the turnover plate, the damping spring, the lower fork support arm and the brake support arm in sequence in a working state.

Description

Technical Field

[0001] The utility model relates to a front suspension assembly, in particular to a front suspension assembly of an amphibious vehicle. Background Art

[0002] An amphibious vehicle is a multi-purpose special vehicle that can be highly adaptable and flexible on land, sail quickly and stealthily on water, and operate smoothly in the environment where land and water meet. It has the advantages of rapid mobility across multiple environments and a wide range of uses, and has significant military application value and broad civilian prospects.

[0003] The suspension is the assembly of all force transmission connection devices between the frame (or body) and the axle. For vehicles with front-wheel steering, the function of the front suspension is to transfer the vertical reaction force, longitudinal reaction force and lateral reaction force of the road surface on the wheels and the torque caused by these reaction forces to the frame (or body) to ensure the normal driving of the car. At the same time, it also has a steering function. At present, the front suspension wheel lifting methods commonly used in amphibious vehicles are divided into two types: flipping type and lifting type. When the flipping front suspension is working, under the action of the lifting cylinder, the upper swing arm, lower swing arm, shock absorber, coil spring and wheel hub, wheel and other wheel side mechanisms rotate around a connecting shaft between the lower swing arm and the frame at the same time to achieve the lifting and lowering of the wheel. This flipping mechanism has the disadvantages of too many wheel side rods, difficulty in sealing the body, and occupying a large space inside the body. Utility Model Content

[0004] In order to solve the deficiencies existing in the above-mentioned technologies, the utility model provides a front suspension assembly for an amphibious vehicle.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: it includes brake arms connected to the wheels on the left and right sides, the brake arms include a fisheye ball head and a rotating head, a support plate connected by a vertical frame leg is arranged at the oblique height between the brake arms on the left and right sides, an upper fork arm and a lower fork arm are arranged between the brake arm and the vertical frame leg on the corresponding side, a middle bracket is also connected to the support plate, the middle bracket is connected in series with a cylinder and a reinforcement plate through an upper shaft vertically connected thereto, and the cylinder is also connected to a shock-absorbing spring through a flip plate.

[0006] Furthermore, there are two support plates, which are spaced apart from each other front to back in the width direction of the brake arm, and both ends of the support plates are mounted on the stand legs and located at the upper part of the stand legs.

[0007] Furthermore, the number of the stand legs is four, and the four stand legs are respectively connected to the free ends of the support plate.

[0008] Furthermore, the frame legs extend in the vertical direction, and the upper parts of the two frame legs on the same side are hinged with an upper fork arm. The connection between the frame legs and the upper fork arm is located on the opposite side of the connection between the frame legs and the support plate, and the other end of the upper fork arm is hinged on the fisheye ball head of the brake arm.

[0009] Furthermore, the lower parts of the two vertical frame legs on the same side are hinged with a lower fork arm, the connection between the vertical frame leg and the lower fork arm is located on the opposite side of the connection between the vertical frame leg and the support plate, and the other end of the lower fork arm is hinged on the rotating head of the brake arm.

[0010] Furthermore, there are two middle brackets, both ends of which are respectively connected to the stand legs on their respective sides, and the two middle brackets are also respectively adjacent to one side between the two support plates.

[0011] Furthermore, the middle bracket is bridge-shaped, and the highest horizontal height of the bridge span structure of the middle bracket is higher than the highest horizontal height of the support plate.

[0012] Furthermore, a reinforcing plate located at one half of the bridge span structure of the two middle supports is serially connected through an upper shaft;

[0013] There are two upper shafts, and the two upper shafts are respectively connected to the inflection points of the middle bracket;

[0014] The length of the reinforcement plate is equal to the length of the bridge span structure of the middle support and the two are parallel to each other.

[0015] Furthermore, oil cylinders are connected in series between the reinforcement plate and the middle brackets on both sides. There are two oil cylinders, which are diagonally staggered. The free ends of the oil cylinders are movably connected to flip plates, and the other ends of the flip plates are hinged to the lower fork arm through shock-absorbing springs.

[0016] Furthermore, the upper part of the flip plate is also movably connected to the upper shaft.

[0017] The utility model discloses a front suspension assembly for an amphibious vehicle, which has a streamlined structure, reasonable connections, and stable and reliable connection structures, thereby making the entire front suspension assembly more stable and firm. Moreover, through a reasonable and streamlined connection relationship, the state changes of lifting, turning up and falling are smoother, while reducing space occupancy, ensuring that in a working state, the up and down movements are realized in sequence through an oil cylinder, a flip plate, a shock-absorbing spring, a lower fork support arm, and a brake support arm to achieve the effect of lifting the front wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. Support plate; 2. Stand leg; 3. Upper fork arm; 4. Lower fork arm; 5. Brake arm; 6. Middle bracket; 7. Reinforcement plate; 8. Upper shaft; 9. Cylinder; 10. Flip plate; 11. Shock-absorbing spring. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1 As shown, this embodiment is about the front suspension assembly of the amphibious vehicle, including brake arms 5 located on the left and right sides connected to the wheels, and the brake arms 5 include a fisheye ball head and a rotating head. This is the prior art and will not be discussed in detail.

[0022] A support plate 1 connected by a vertical frame leg 2 is arranged at the oblique height between the left and right brake arms 5. The length extension direction of the support plate 1 is consistent with the width extension direction of the vehicle body. An upper fork arm 3 and a lower fork arm 4 are arranged between the brake arm 5 and the vertical frame leg 2 on the corresponding side. A middle bracket 6 is also connected to the support plate 1. The middle bracket 6 is connected in series with a cylinder 9 and a reinforcement plate 7 through an upper shaft 8 vertically connected thereto. The cylinder 9 is also connected to a shock-absorbing spring 11 through a flip plate 10.

[0023] Preferably, there are two support plates 1, and the two support plates 1 are implemented in a manner of being spaced apart from each other front to back in the width direction of the brake arm 5. Both ends of the support plates 1 are mounted on the stand legs 2 and are located at the upper position of the stand legs 2. The firm connection between the support plates 1 and the stand legs 2 makes the connection relationship of this embodiment more secure.

[0024] Furthermore, the number of the stand legs 2 is four, and the four stand legs 2 are respectively connected to the free ends of the support plate 1, which further strengthens the connection between the stand legs 2 and the support plate 1 and is conducive to extending the connection based on the stand legs 2 as the structural basis.

[0025] Furthermore, the frame leg 2 extends in the vertical direction, and the upper parts of the two frame legs 2 on the same side are hinged with an upper fork arm 3. The connection between the frame leg 2 and the upper fork arm 3 is located on the opposite side of the connection between the frame leg 2 and the support plate 1, and the other end of the upper fork arm 3 is hinged on the fisheye ball head of the brake arm 5. In actual use, the upper fork arm 3 as the intermediate structure between the brake arm 5 and the support plate 1 has a linkage technical effect, and the brake arm 5 can flip up and / or fall around the upper fork arm 3 through the fisheye ball head.

[0026] Furthermore, the lower parts of the two vertical frame legs 2 on the same side are hinged with a lower fork arm 4. The connection between the vertical frame leg 2 and the lower fork arm 4 is located on the opposite side of the connection between the vertical frame leg 2 and the support plate 1. The other end of the lower fork arm 4 is hinged on the rotating head of the brake arm 5. In actual use, the lower fork arm 4, as the intermediate structure between the brake arm 5 and the support plate 1, has a technical effect of linkage, and also enables the brake arm 5 to be flipped up and / or dropped through the rotating head of the lower fork arm 4.

[0027] It should be noted that the upper fork arm 3 is located directly above the lower fork arm 4. When the brake arm 5 flips up and / or falls down, the upper fork arm 3 and the lower fork arm 4 work together. In addition, both sides of the width direction of the upright leg 2 are provided with wall guard plates which are bent and flipped up on one side connected to the upper fork arm 3 and the lower fork arm 4, and are hinged to the upper fork arm 3 and the lower fork arm 4 respectively through the wall guard plates.

[0028] There are two middle brackets 6, and both ends of the two middle brackets 6 are respectively connected to the vertical frame legs 2 on their respective sides. The two middle brackets 6 are also respectively adjacent to one side between the two support plates 1. The middle bracket 6 further strengthens the strength of the structural part between the brake arms 5 on both sides, and is adjacent to one side of the support plate 1, which is beneficial to assist the torsional strength of the support plate 1.

[0029] Preferably, the middle bracket 6 is bridge-shaped, and the highest height of the bridge span structure of the middle bracket 6 when placed horizontally is higher than the highest height of the support plate 1 when placed horizontally. Therefore, the bridge span structure of the middle bracket 6 has a layout space for carrying other structures, and the specific layout is as follows:

[0030] A reinforcing plate 7 located at one half of the bridge span structure of the two middle brackets 6 is connected in series through an upper shaft 8, and the reinforcing plate 7 is used to strengthen the connection relationship;

[0031] There are two upper shafts 8, which are respectively connected to the inflection points of the middle bracket 6. The upper shafts 8 are used to carry additional structures and also serve as a connecting structure connecting the middle bracket 6 and the reinforcement plate 7, so that the connection relationship is more solid and occupies less space. On the contrary, the reinforcement plate 7 also acts on the upper shaft 8, which is conducive to maintaining the stability of the upper shaft 8.

[0032] The length of the reinforcing plate 7 is equal to the length of the bridge span structure of the middle support 6 and the two are parallel to each other.

[0033] Preferably, oil cylinders 9 are connected in series between the reinforcement plate 7 and the middle brackets 6 on both sides. There are two oil cylinders 9, and the two oil cylinders 9 are placed diagonally staggered, which is conducive to optimizing the weight distribution of this embodiment. The diagonal staggered placement of the oil cylinders 9 is also conducive to reducing the layout space, making the conduction more compact.

[0034] Furthermore, a flip plate 10 is movably connected to the free end of the oil cylinder 9, and the other end of the flip plate 10 is hinged to the lower fork arm 4 through a shock-absorbing spring 11. The flip plate 10 is used for transmitting the transmission force of the oil cylinder 9 to drive the lower fork arm 4 to work.

[0035] In addition, the upper part of the flip plate 10 is also movably connected to the upper shaft 8. It should be noted that the flip plate 10 and the oil cylinder 9 connected to it are respectively arranged on different upper shafts 8, and then through the movable connection between the upper shaft 8 and the flip plate 10, the flexibility of the flip plate 10 is ensured while the stability is increased.

[0036] In this way, the front suspension assembly of the amphibious vehicle disclosed by the utility model has a streamlined structure, reasonable connection, and stable and reliable connection structures, thereby making the entire front suspension assembly more stable and firm, and through the reasonable and streamlined connection relationship, the state changes of lifting, flipping, and falling are smoother, while reducing space occupancy, ensuring that in the working state, the up and down movement is realized in sequence through the oil cylinder 9, the flip plate 10, the shock absorbing spring 11, the lower fork support arm 4, and the brake support arm 5 to achieve the effect of lifting the front wheel.

[0037] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A front suspension assembly for an amphibious vehicle, comprising brake arms (5) located on the left and right sides and connected to the wheels, the brake arms (5) comprising a fish eye ball head and a rotating head, characterized in that: A support plate (1) connected via a stand leg (2) is arranged at an oblique height between the brake arms (5) on the left and right sides; an upper fork arm (3) and a lower fork arm (4) are arranged between the brake arms (5) and the stand leg (2) on the corresponding side; a middle bracket (6) is also connected to the support plate (1); the middle bracket (6) is connected in series with an oil cylinder (9) and a reinforcement plate (7) via an upper shaft (8) vertically connected thereto; and the oil cylinder (9) is also connected to a shock-absorbing spring (11) via a flip plate (10).

2. The front suspension assembly of an amphibious vehicle according to claim 1 is characterized in that: The number of the support plates (1) is two, and the two support plates (1) are implemented in a manner of being spaced from each other in the front and rear direction of the width direction of the brake support arm (5), and both ends of the support plates (1) are installed on the stand legs (2) and are located at the upper position of the stand legs (2).

3. The front suspension assembly of an amphibious vehicle according to claim 2 is characterized in that: The number of the stand legs (2) is four, and the four stand legs (2) are respectively connected to the free ends of the support plate (1).

4. The front suspension assembly of an amphibious vehicle according to claim 3 is characterized in that: The stand leg (2) extends in the vertical direction, and the upper parts of the two stand legs (2) on the same side are hinged with an upper fork arm (3). The connection between the stand leg (2) and the upper fork arm (3) is located on the opposite side of the connection between the stand leg (2) and the support plate (1), and the other end of the upper fork arm (3) is hinged on the fisheye ball head of the brake arm (5).

5. The front suspension assembly of an amphibious vehicle according to claim 4 is characterized in that: The lower parts of the two stand legs (2) on the same side are hinged with a lower fork arm (4), and the connection between the stand leg (2) and the lower fork arm (4) is located on the opposite side of the connection between the stand leg (2) and the support plate (1), and the other end of the lower fork arm (4) is hinged on the rotating head of the brake arm (5).

6. The amphibious vehicle front suspension assembly according to claim 1, characterized in that: The number of the middle brackets (6) is two, and the two ends of the two middle brackets (6) are respectively connected to the stand legs (2) on their respective sides, and the two middle brackets (6) are also respectively adjacent to one side between the two support plates (1).

7. The front suspension assembly of an amphibious vehicle according to claim 6, characterized in that: The middle bracket (6) is bridge-shaped, and the highest horizontal height of the bridge span structure of the middle bracket (6) is higher than the highest horizontal height of the support plate (1).

8. The front suspension assembly of an amphibious vehicle according to claim 7, characterized in that: A reinforcing plate (7) located at one half of the bridge span structure of the two middle brackets (6) is serially connected via an upper shaft (8); The number of the upper shafts (8) is two, and the two upper shafts (8) are respectively connected to the inflection points of the middle bracket (6); The length of the reinforcement plate (7) is equal to the length of the bridge span structure of the middle support (6), and the two are parallel to each other.

9. The front suspension assembly of an amphibious vehicle according to claim 8, characterized in that: Oil cylinders (9) are connected in series between the reinforcing plate (7) and the middle brackets (6) on both sides. The number of the oil cylinders (9) is two, and the two oil cylinders (9) are diagonally staggered. The free ends of the oil cylinders (9) are movably connected to a flip plate (10), and the other end of the flip plate (10) is hinged to the lower fork arm (4) through a shock absorbing spring (11).

10. The front suspension assembly of an amphibious vehicle according to claim 9, characterized in that: The upper part of the flip plate (10) is also movably connected to the upper shaft (8).

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