Lifting type logistics vehicle

Abstract

The utility model discloses a lifting type logistics vehicle which comprises a hydro-pneumatic spring front suspension system, a hydro-pneumatic spring rear suspension system, a bearing type vehicle body, a front walking device and a rear walking device. The front walking device is connected with the front portion of the bearing type vehicle body through the hydro-pneumatic spring front suspension system, and the rear walking device is connected with the rear portion of the bearing type vehicle body through the hydro-pneumatic spring rear suspension system. A storage bin is arranged in the middle of the bearing type vehicle body, and the hydro-pneumatic spring front suspension system and the hydro-pneumatic spring rear suspension system can change the height position of the bearing type vehicle body. The height position of the load-bearing type vehicle body can be changed, the vehicle adapts to different working conditions such as cargo loading, smooth road driving, undulating road driving and cargo unloading, and the loading and unloading efficiency, the whole vehicle stability and the whole vehicle trafficability under different working conditions are guaranteed.

Description

Technical Field

[0001] This utility model relates to transportation equipment, specifically to a lifting logistics vehicle. Background Technology

[0002] Most unmanned logistics vehicles use leaf spring or coil spring suspensions and lack overall vehicle lifting capabilities. When loading goods, the cargo needs to be lifted or hoisted and placed on a flatbed on the top of the vehicle. Alternatively, goods may be pushed into the vehicle and then lifted using an onboard lifting mechanism. These loading methods are inefficient, require additional lifting equipment or mechanisms, are complex to operate, costly, and involve significant weight. Furthermore, in current technology, the ground clearance of unmanned logistics vehicles varies with load; the heavier the load, the lower the ground clearance. Once the wheel design is finalized, the ground clearance cannot be changed. While a higher ground clearance improves maneuverability, it negatively impacts stability during driving. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a lifting logistics vehicle that can change the height position of the load-bearing body to adapt to different working conditions such as loading goods, driving on flat roads, driving on undulating roads, and unloading goods, so as to ensure loading and unloading efficiency, vehicle stability and vehicle passability under different working conditions.

[0004] This utility model discloses a lifting logistics vehicle, comprising a gas spring front suspension system, a gas spring rear suspension system, a load-bearing body, a front traveling device, and a rear traveling device; the front traveling device is connected to the front of the load-bearing body via the gas spring front suspension system, and the rear traveling device is connected to the rear of the load-bearing body via the gas spring rear suspension system; a storage compartment is provided in the middle of the load-bearing body, and the gas spring front suspension system and the gas spring rear suspension system are capable of changing the height position of the load-bearing body.

[0005] Furthermore, the gas spring front suspension system and the gas spring rear suspension system can lower the height of the monocoque vehicle body so that the height of the monocoque vehicle body is in the loading / unloading state.

[0006] Furthermore, a support base plate is provided at the bottom of the storage compartment, and when the height position of the load-bearing vehicle body is in the loading and unloading state, the lower surface of the support base plate is in contact with the ground.

[0007] Furthermore, the height position of the unibody vehicle also includes a low-posture position, a standard-posture position, and a high-posture position.

[0008] Furthermore, the support base plate is provided with a guide slope, which is an inclined surface with increasing height along the direction from outside the vehicle to inside the storage compartment.

[0009] Furthermore, the storage compartment is a chamber structure with an opening on the left side, and the guide ramp is located on the left side of the support base plate.

[0010] Furthermore, the storage compartment has a front sidewall, a rear sidewall, a right sidewall, and an upper sidewall. The upper surface of the supporting base plate serves as the lower sidewall of the storage compartment. The front sidewall, upper sidewall, rear sidewall, lower sidewall, and right sidewall together form a chamber structure with an opening on the left side.

[0011] Furthermore, a mobile shelf can be placed on the supporting base plate. The mobile shelf includes a shelf platform, a frame set on the shelf platform, and a plurality of rollers set at the bottom of the shelf platform.

[0012] Furthermore, the roller is a universal wheel equipped with a brake.

[0013] Furthermore, the front traveling device is a front wheel, the rear traveling device is a rear axle, and the rear axle is equipped with a rear wheel.

[0014] The beneficial effects of this utility model are:

[0015] (1) This utility model can lift and lower the load-bearing vehicle body by means of the oil-gas spring front suspension system and the oil-gas spring rear suspension system, thereby changing the height position of the load-bearing vehicle body to adapt to different working conditions such as loading goods, driving on flat roads, driving on undulating roads, and unloading goods.

[0016] (2) When loading or unloading goods, this utility model can lower the load-bearing vehicle body to the loading and unloading position, so that the mobile rack can be directly pushed into the storage compartment inside the load-bearing vehicle body. When loading or unloading, there is no need to use cranes, forklifts or other equipment, which can improve loading and unloading efficiency.

[0017] (3) When the vehicle is driving on a flat road, the present invention can lower the attitude of the load-bearing body to a low attitude position, thereby reducing air resistance and lowering the center of gravity of the vehicle, thus improving the stability of the vehicle. When the vehicle is driving on bumpy roads, speed bumps and other undulating roads, the present invention can raise the attitude of the load-bearing body to a high attitude position, thereby increasing the ground clearance of the load-bearing body and improving the passability of the vehicle. Attached Figure Description

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model (with the mobile shelf already installed);

[0020] Figure 2This is a structural schematic diagram of the present invention (before loading the mobile shelf);

[0021] Figure 3 This is a schematic diagram of the structure of this utility model (without the mobile shelf installed);

[0022] Figure 4 for Figure 3 A magnified view of part A;

[0023] Figure 5 This is a schematic diagram of the connection between the gas spring front suspension system of this utility model and the front wheel;

[0024] Figure 6 This is a schematic diagram of the connection between the gas spring rear suspension system of this utility model and the rear axle.

[0025] Figure 7 This is a structural schematic diagram of the load-bearing vehicle body of this utility model when it is in the loading / unloading state.

[0026] Figure 8 This is a structural schematic diagram of the load-bearing body of this utility model when it is in a low-profile position.

[0027] Figure 9 This is a structural schematic diagram of the load-bearing vehicle body of this utility model in a standard posture position;

[0028] Figure 10 This is a structural schematic diagram of the load-bearing vehicle body of this utility model when it is in a high-position state.

[0029] The following labels are used in the attached diagram: 1-Air spring front suspension system, 2-Air spring rear suspension system, 3-Monopoly vehicle body, 301-Storage compartment, 302-Support base plate, 3021-Guide ramp, 4-Front travel device, 5-Rear travel device, 6-Mobile rack, 601-Roller, 602-Rack platform, 603-Frame. Detailed Implementation

[0030] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0031] like Figures 1-10As shown, a lifting logistics vehicle in this embodiment includes a gas spring front suspension system 1, a gas spring rear suspension system 2, a load-bearing body 3, a front traveling device 4, and a rear traveling device 5. The front traveling device 4 is connected to the front of the load-bearing body 3 via the gas spring front suspension system 1, and the rear traveling device 5 is connected to the rear of the load-bearing body 3 via the gas spring rear suspension system 2. A storage compartment 301 is provided in the middle of the load-bearing body 3, and the gas spring front suspension system 1 and the gas spring rear suspension system 2 can change the height position of the load-bearing body 3.

[0032] The height positions of the load-bearing body 3 include the loading / unloading position, the low-profile position, the standard-profile position, and the high-profile position. The load-bearing body 3 in the loading / unloading position is lower than the load-bearing body 3 in the low-profile position, the load-bearing body 3 in the low-profile position is lower than the load-bearing body 3 in the standard-profile position, and the load-bearing body 3 in the standard-profile position is lower than the load-bearing body 3 in the high-profile position.

[0033] The gas spring front suspension system 1 and the gas spring rear suspension system 2 can lower the height of the monocoque vehicle body 3 so that the height of the monocoque vehicle body 3 is in the loading and unloading position. The bottom of the storage compartment 301 is provided with a support base plate 302. When the height of the monocoque vehicle body 3 is in the loading and unloading position, the lower surface of the support base plate 302 is in contact with the ground.

[0034] The front and rear suspension systems 1 and 2, both equipped with air springs, offer advantages such as large travel, high load-bearing capacity, and fast lifting speed. These systems allow for the raising and lowering of the monocoque vehicle body 3, changing its height to adapt to different working conditions, including loading cargo, driving on smooth roads, driving on undulating roads, and unloading cargo.

[0035] When loading goods, the height of the monocoque chassis 3 can be lowered using the front and rear air spring suspension systems 1 and 2, placing it in a loading / unloading position. This allows the mobile rack 6 or other goods to be directly pushed into the storage compartment 301 within the monocoque chassis 3. The system then raises the chassis 3 to its standard, low, or high position, completing the loading process and enabling normal driving afterward. Loading does not require cranes or forklifts, thus improving loading efficiency.

[0036] When the vehicle is driving on a flat road, the attitude of the monocoque body 3 can be lowered by the air spring front suspension system 1 and the air spring rear suspension system 2, so that the height of the monocoque body 3 is in a low attitude position, thereby reducing air resistance, lowering the center of gravity of the vehicle, and improving the stability of the vehicle.

[0037] When the vehicle is driving on bumpy roads, speed bumps, or other undulating roads, the attitude of the monocoque body 3 can be raised by the air spring front suspension system 1 and the air spring rear suspension system 2, so that the height of the monocoque body 3 is in a high position, thereby increasing the ground clearance of the monocoque body 3 and improving the overall vehicle passability.

[0038] When unloading goods, the height of the monocoque chassis 3 is lowered via the gas spring front suspension system 1 and the gas spring rear suspension system 2, placing the monocoque chassis 3 in a loading / unloading position. The mobile rack 6 or other goods can then be pushed off the vehicle, completing the unloading process. Unloading does not require the use of cranes, forklifts, or other equipment, thus improving unloading efficiency.

[0039] In this embodiment, a guide slope 3021 is provided on the support base plate 302. The guide slope 3021 is an inclined surface with increasing height along the direction from outside the vehicle to inside the storage compartment 301.

[0040] When the load-bearing vehicle body 3 is in the loading / unloading position at its height, the lower surface of the support base plate 302 is in contact with the ground. The guide ramp 3021 makes the side of the support base plate 302 facing outwards thinner, thus facilitating the movement of the mobile rack 6 from outside the vehicle into the storage compartment 301 via the guide ramp 3021, preventing obstruction of the rollers 601 of the mobile rack 6. Furthermore, the guide ramp 3021 prevents the mobile rack 6 from bumping when it moves from the storage compartment 301 outwards.

[0041] In this embodiment, the storage compartment 301 is a chamber structure with an opening on the left side, and the guide ramp 3021 is located on the left side of the supporting base plate 302. In this embodiment, the storage compartment 301 has a front side wall, a rear side wall, a right side wall, and an upper side wall. The upper surface of the supporting base plate 302 serves as the lower side wall of the storage compartment 301. The front side wall, upper side wall, rear side wall, lower side wall, and right side wall together form a chamber structure with an opening on the left side.

[0042] The chamber structure with an opening on the left side allows the movable shelf 6 to enter and exit the storage compartment 301 through the left opening. The front and rear sides of the support base plate 302 are connected to the front and rear side walls, respectively. The lowest point of the front side wall extends below the height of the center of the front wheel, and the lowest point of the rear side wall extends below the height of the center of the rear wheel. This makes the overall height of the support base plate 302 below the height of the center of the front and rear wheels, thus allowing the support base plate 302 to sink. This results in a recessed structure at the bottom of the storage compartment 301 that is below the height of the center of the front and rear wheels. The upper surface of the support base plate 302 provides a support surface for the mobile shelf 6 or other goods. The bottom of the storage compartment 301 only has the support base plate 302. There are no space-consuming components such as batteries or controllers installed below the lower surface of the support base plate 302. This ensures that the lower surface of the support base plate 302 can be in contact with the ground after the air spring front suspension system 1 and the air spring rear suspension system 2 are lowered to the loading and unloading position of the load-bearing vehicle body 3.

[0043] In this embodiment, a mobile shelf 6 can be placed on the supporting base plate 302. The mobile shelf 6 includes a shelf platform 602, a frame 603 set on the shelf platform 602, and a plurality of rollers 601 set at the bottom of the shelf platform 602. The rollers 601 are omnidirectional wheels with brakes.

[0044] The frame 603 on the rack platform 602 includes multiple interlocking rods, and the surrounding arrangement of the frame 603 can prevent goods from falling off the rack platform 602. The casters with brakes are prior art. When loading goods, after the mobile rack 6 is moved into the storage compartment 301, the brakes can prevent the mobile rack 6 from moving on the support base plate 302 when the vehicle is moving.

[0045] In this embodiment, the front travel device 4 is the front wheel, and the rear travel device 5 is the rear axle, with the rear wheel mounted on the rear axle. The front suspension system 1 is an independent air spring suspension, and the rear suspension system 2 is a non-independent air spring suspension. The front suspension system 1 is positioned between the monocoque vehicle body 3 and the front wheel, and the rear suspension system 2 is positioned between the monocoque vehicle body 3 and the rear axle. Both the front and rear suspension systems utilize existing technology. Their working principle is as follows: by controlling the flow direction and flow rate of the hydraulic fluid and compressed gas in the internal chambers of the air spring, the compression stroke and stiffness of the air spring are adjusted, thereby dynamically adjusting the support characteristics of the suspension system. This process enables active control of the height, damping characteristics, and load adaptability of the vehicle frame or monocoque vehicle body 3.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lift truck comprising: The application relates to a front oil-gas spring suspension system (1), a rear oil-gas spring suspension system (2), a load-bearing vehicle body (3), a front walking device (4) and a rear walking device (5); the front walking device (4) is connected with the front part of the load-bearing vehicle body (3) through the front oil-gas spring suspension system (1), the rear walking device (5) is connected with the rear part of the load-bearing vehicle body (3) through the rear oil-gas spring suspension system (2); the middle part of the load-bearing vehicle body (3) is provided with a storage bin (301), and the front oil-gas spring suspension system (1) and the rear oil-gas spring suspension system (2) can change the height position of the load-bearing vehicle body (3).

2. The lift cart of claim 1, wherein: The front oil-gas spring suspension system (1) and the rear oil-gas spring suspension system (2) can lower the height position of the load-bearing vehicle body (3), so that the height position of the load-bearing vehicle body (3) is in a loading and unloading state position.

3. The lift cart of claim 2, wherein: The bottom of the storage bin (301) is provided with a supporting bottom plate (302), and the lower surface of the supporting bottom plate (302) is attached to the ground when the height position of the load-bearing vehicle body (3) is in the loading and unloading state position.

4. The lift cart of claim 3, wherein: The height position of the load-bearing vehicle body (3) further comprises a low attitude state position, a standard attitude state position and a high attitude state position.

5. The lift cart of claim 3, wherein: The supporting bottom plate (302) is provided with a guide inclined surface (3021), and the guide inclined surface (3021) is an inclined surface with increasing height in the direction from outside the vehicle to inside the storage bin (301).

6. The lift cart of claim 5, wherein: The storage bin (301) is a left-opening cavity structure, and the guide inclined surface (3021) is located on the left side of the supporting bottom plate (302).

7. The lift cart of claim 6, wherein: The storage bin (301) has a front side wall, a rear side wall, a right side wall and an upper side wall, the upper surface of the supporting bottom plate (302) serves as the lower side wall of the storage bin (301), and the front side wall, the upper side wall, the rear side wall, the lower side wall and the right side wall form a left-opening cavity structure.

8. The lift cart of claim 3, wherein: The supporting bottom plate (302) can place a mobile shelf (6), and the mobile shelf (6) comprises a shelf platform (602), a frame (603) arranged on the shelf platform (602) and a plurality of rollers (601) arranged at the bottom of the shelf platform (602).

9. The lift cart of claim 8, wherein: The rollers (601) are universal wheels with brakes.

10. The lift cart of claim 1, wherein: The front walking device (4) is a front wheel, the rear walking device (5) is a rear axle, and the rear axle is provided with rear wheels.

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