A front unit lift flatbed truck

Abstract

The utility model relates to a front integral lifting flatbed truck belongs to the transport car technical field, including cab, chassis and lifting assembly, lifting assembly has two groups and is provided with the two sides of chassis near cab one end respectively, lifting assembly includes fixed column, lifting column and hydraulic cylinder, fixed column fixed connection is in the chassis, the cross section of fixed column is U type setting, the opening of two fixed columns is opposite setting, hydraulic cylinder is detachably connected between two parallel side walls of fixed column, the upper end of lifting column is detachably connected with the piston rod of hydraulic cylinder, and the lower end of lifting column is hinged with support foot, and lifting column is connected in the inner chamber of fixed column, the baffle that prevents lifting column from shaking is arranged on fixed column, and hydraulic cylinder and fixed column, lifting column detachable connection, when hydraulic cylinder is damaged, it is convenient to dismount and replace hydraulic cylinder, when the flatbed truck breaks down, needs to overhaul its tail part, can take down hydraulic cylinder, and the tail part of flatbed truck is supported.

Description

Technical Field

[0001] This utility model relates to the field of transport vehicle technology, and in particular to a front-integral lifting flatbed transport vehicle. Background Technology

[0002] Flatbed trucks, also known as construction machinery transport vehicles, flatbed trucks, or low-bed trucks, are mainly used for transporting non-detachable objects such as excavators, loaders, and harvesters. Their high load-bearing capacity makes them irreplaceable in the field of large machinery transportation.

[0003] The front-mounted integrated flatbed truck uses a lifting device to raise the entire front of the flatbed, creating a slope. Then, the two rear ramps are lowered to contact the ground, facilitating the loading and unloading of large machinery. The existing lifting device includes two lifting columns, each consisting of a fixed column and a lifting column. The fixed column is attached to the chassis near the cab, while the lifting column is slidably connected to it. A hydraulic cylinder is connected to the fixed column, and its piston rod is connected to the lifting column. When the flatbed needs to be lifted, the hydraulic cylinder piston rod pushes the lifting column to contact the ground, and continues to push after contact, thus lifting the front of the flatbed truck.

[0004] Existing hydraulic cylinders typically have their cylinder bodies fixed within the cavity of a fixed column, making replacement inconvenient when a problem occurs. To address these issues, we propose a front-integral lifting flatbed transport vehicle. Utility Model Content

[0005] This utility model addresses the problems in the prior art by providing a front-integral lifting flatbed transport vehicle, which is achieved through the following technical solution: A front-mounted integrated lifting flatbed transport vehicle includes a cab, a chassis, and lifting components. Two lifting components are respectively located on both sides of the chassis near the cab. Each lifting component includes a fixed column, a lifting column, and a hydraulic cylinder. The fixed column is fixedly connected to the chassis and has a U-shaped cross-section. The openings of the two fixed columns are opposite to each other. The hydraulic cylinder is detachably connected between two parallel side walls of the fixed column. The upper end of the lifting column is detachably connected to the piston rod of the hydraulic cylinder. The lower end of the lifting column is hinged with a support foot. The lifting column is slidably connected to the inner cavity of the fixed column. A baffle is provided on the fixed column to prevent the lifting column from swaying.

[0006] The present invention is further configured such that: the cylinder body of the hydraulic cylinder is hinged to a first connecting seat, the first connecting seat is U-shaped, the cylinder body of the hydraulic cylinder is hinged between two parallel side walls of the first connecting seat, a sliding block is fixedly connected to the outer side of the two parallel side walls of the first connecting seat, and a sliding groove for the sliding block to move is provided on the two parallel side walls of the fixed column.

[0007] The present invention is further configured such that: the upper end of the baffle is hinged between two parallel side walls of the fixed column; the lower end of the fixed column is provided with a stop rod and a fixing seat; the side wall of the fixed column where the stop rod is located is parallel to the side wall of the fixed column where the fixing seat is located; the stop rod is hinged to the fixed column; the fixing seat is fixedly connected to the fixed column; a fixing rod is threaded to the end of the stop rod away from its hinge axis; and a circular hole is provided on the side wall of the fixing seat for the fixing rod to pass through.

[0008] The present invention is further configured such that: a snap-fit ​​seat is fixedly connected to the lower end face of the chassis, and the opening of the snap-fit ​​seat faces the ground.

[0009] The present invention is further configured such that a rectangular hole is provided on the top wall of the first connecting seat.

[0010] The present invention is further configured such that: a groove is provided on the baffle for the hydraulic cylinder pipe to pass through.

[0011] In summary, the beneficial technical effects of this utility model are as follows: The hydraulic cylinder is detachably connected to the fixed column, making it easy to disassemble and replace the hydraulic cylinder when it is damaged. A snap-fit ​​seat is fixedly connected to the lower end face of the chassis. When the rear of the flatbed transport vehicle malfunctions and needs to be repaired, the hydraulic cylinder can be removed, the first connecting seat can be placed on the ground, and one end of the piston rod of the hydraulic cylinder can be inserted into the snap-fit ​​seat to drive the piston rod of the hydraulic cylinder to move, thereby lifting the rear of the flatbed transport vehicle for easy inspection. Attached Figure Description

[0012] Figure 1 This is an isometric view used to show the overall structure of this embodiment under normal conditions; Figure 2 It is used to display an exploded view of the lifting assembly (magnified 2.5 times). Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is a schematic diagram used to illustrate the support structure for maintenance at the rear of a flatbed transport vehicle.

[0013] Reference numerals: 1. Cab; 2. Chassis; 3. Lifting assembly; 31. Fixed column; 311. Baffle; 312. Sliding groove; 313. Stop bar; 314. Fixed seat; 315. Fixed rod; 316. Round hole; 317. Groove; 32. Lifting column; 33. Hydraulic cylinder; 331. First connecting seat; 332. Sliding block; 333. Rectangular hole; 334. Second connecting seat; 335. Pin; 34. Support leg; 4. Snap-fit ​​seat. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0015] like Figure 1-4 As shown, this utility model discloses a front-integrated lifting flatbed transport vehicle, including a cab 1, a chassis 2, and a lifting assembly 3. The lifting assembly 3 has two sets, each located on one side of the chassis 2 near the cab 1. The lifting assembly 3 includes a fixed column 31, a lifting column 32, and a hydraulic cylinder 33. The fixed column 31 is fixedly connected to the chassis 2, and its cross-section is U-shaped with the openings of the two fixed columns 31 facing away from each other. The hydraulic cylinder 33 is detachably connected between the two parallel side walls of the fixed column 31. The upper end of the lifting column 32 is detachably connected to the piston rod of the hydraulic cylinder 33. The lower end of the lifting column 32 is hinged with a support foot 34. The lifting column 32 is slidably connected to the inner cavity of the fixed column 31. A baffle 311 is provided on the fixed column 31 to prevent the lifting column 32 from swaying. The hydraulic cylinder 33 is detachably connected to the fixed column 31 and the lifting column 32. This allows for easy disassembly and replacement of the hydraulic cylinder 33 if it is damaged. When the flatbed transport vehicle malfunctions and its rear needs repair, the hydraulic cylinder 33 can be removed to support the rear of the flatbed transport vehicle. Sufficient length is reserved for the pipe connecting the hydraulic cylinder and the hydraulic station (not shown in the figure).

[0016] The cylinder body of the hydraulic cylinder 33 is hinged to a first connecting seat 331, which is U-shaped. The cylinder body of the hydraulic cylinder 33 is hinged between two parallel side walls of the first connecting seat 331. Sliding blocks 332 are fixedly connected to the outer sides of the two parallel side walls of the first connecting seat 331. Sliding grooves 312 for the sliding blocks 332 to move are provided on the two parallel side walls of the fixing post 31. To fix the hydraulic cylinder 33, the sliding blocks 332 at both ends of the first connecting seat 331 are pushed into the sliding grooves 312. To facilitate pulling the first connecting seat 331, a rectangular hole 333 is provided on the top wall of the first connecting seat 331. When it is necessary to disassemble the hydraulic cylinder 33, the first connecting seat 331 is pulled by grasping the side wall of the rectangular hole 333.

[0017] The lower end of the piston rod of the hydraulic cylinder 33 is fixedly connected to a second connecting seat 334. The second connecting seat 334 is U-shaped and its opening faces the ground. A pin 335 is provided between the two parallel side walls of the second connecting seat 334. The upper end of the lifting column 32 is sleeved on the pin 335. The pin 335 is clearance-fitted with the second connecting seat 334 and the lifting column 32 respectively. The length of the pin 335 is greater than the distance between the two parallel side walls of the second connecting seat 334 and less than the distance between the two parallel side walls of the fixed column 31. When assembling the lifting column 32 and the hydraulic cylinder 33, the lower end of the hydraulic cylinder 33 can be rotated out from the two parallel side walls of the fixed column 31. The lifting column 32 is aligned with the hole in the second connecting seat 334. Then, the pin 335 is inserted through the lifting column 32 and the second connecting seat 334. Under the action of gravity, the hydraulic cylinder 33 and the lifting column 32 swing into the inner cavity of the fixed column 31. The two parallel side walls of the fixed column 31 block both ends of the pin 335, preventing it from falling off the hydraulic cylinder 33 and the lifting column 32. When disassembling the hydraulic cylinder 33 and the lifting column 32, similarly, the hydraulic cylinder 33 and the lifting column 32 are rotated out from the fixed column 31, and the pin 335 is removed.

[0018] The upper end of the baffle 311 is hinged between two parallel side walls of the fixing post 31. The lower end of the fixing post 31 is provided with a stop rod 313 and a fixing seat 314. The side wall of the fixing post 31 where the stop rod 313 is located is parallel to the side wall of the fixing post 31 where the fixing seat 314 is located. The stop rod 313 is hinged to the fixing post 31, and the fixing seat 314 is fixedly connected to the fixing post 31. A fixing rod 315 is threadedly connected to the end of the stop rod 313 away from its hinge axis. A circular hole 316 is provided on the side wall of the fixing seat 314 for the fixing rod 315 to pass through. When fixing the baffle 311, the stop rod 313 rotates into the groove between the fixing seat 314 and the fixing post 31, and the fixing rod 315 passes through the fixing seat 314 and connects to the fixing post 31, thus fixing the baffle 311.

[0019] To prevent slippage when the hydraulic cylinder 33 lifts the rear of the flatbed truck, a locking seat 4 is fixedly connected to the lower end face of the chassis 2, with the opening of the locking seat 4 facing the ground. When a malfunction occurs at the rear of the flatbed truck and maintenance is required, the first connecting seat 331 is placed on the ground, and one end of the piston rod of the hydraulic cylinder 33 extends into the locking seat 4, driving the piston rod of the hydraulic cylinder 33 to move, thereby lifting the rear of the flatbed truck for easy maintenance.

[0020] Since the hydraulic cylinder 33 needs to be connected to the hydraulic station via a pipe, to prevent excessive gaps between the baffle 311, the lifting column 32, and the hydraulic cylinder 33, a groove 317 is provided on the baffle 311 for the hydraulic cylinder 33 pipe to pass through, which would cause severe shaking of the lifting column 32 and the hydraulic cylinder 33 during the operation of the flatbed transport vehicle. The groove 317 allows the baffle 311 to fit snugly against the side wall of the lifting column 32, thereby preventing severe shaking of the lifting column 32 and the hydraulic cylinder 33.

Claims

1. A front-integrated lifting flatbed transport vehicle, comprising a cab (1), a chassis (2), and a lifting assembly (3), wherein the lifting assembly (3) comprises two sets and is respectively disposed on both sides of the chassis (2) near the cab (1), the lifting assembly (3) comprising a fixed column (31), a lifting column (32), and a hydraulic cylinder (33), wherein the fixed column (31) is fixedly connected to the chassis (2), characterized in that, The fixed column (31) has a U-shaped cross-section, and the openings of the two fixed columns (31) are opposite to each other. The hydraulic cylinder (33) is detachably connected between the two parallel side walls of the fixed column (31). The upper end of the lifting column (32) is detachably connected to the piston rod of the hydraulic cylinder (33). The lower end of the lifting column (32) is hinged with a support foot (34). The lifting column (32) is slidably connected to the inner cavity of the fixed column (31). The fixed column (31) is provided with a baffle (311) to prevent the lifting column (32) from shaking.

2. The front-integral lifting flatbed transport vehicle according to claim 1, characterized in that, The cylinder body of the hydraulic cylinder (33) is hinged to a first connecting seat (331), which is U-shaped. The cylinder body of the hydraulic cylinder (33) is hinged between two parallel side walls of the first connecting seat (331). A sliding block (332) is fixedly connected to the outer side of the two parallel side walls of the first connecting seat (331). A sliding groove (312) for the sliding block (332) to move is provided on the two parallel side walls of the fixed column (31).

3. The front-integral lifting flatbed transport vehicle according to claim 2, characterized in that, The upper end of the baffle (311) is hinged between two parallel side walls of the fixed column (31). The lower end of the fixed column (31) is provided with a stop rod (313) and a fixed seat (314). The side wall of the fixed column (31) where the stop rod (313) is located is parallel to the side wall of the fixed column (31) where the fixed seat (314) is located. The stop rod (313) is hinged to the fixed column (31). The fixed seat (314) is fixedly connected to the fixed column (31). The end of the stop rod (313) away from its hinge axis is threaded with a fixed rod (315). A round hole (316) is opened on the side wall of the fixed seat (314) for the fixed rod (315) to pass through.

4. A front-integral lifting flatbed transport vehicle according to claim 3, characterized in that, The chassis (2) is fixedly connected to a snap-fit ​​seat (4) on its lower end face, and the opening of the snap-fit ​​seat (4) faces the ground.

5. A front-integral lifting flatbed transport vehicle according to claim 4, characterized in that, A rectangular hole (333) is provided on the top wall of the first connecting seat (331).

6. A front-integral lifting flatbed transport vehicle according to claim 5, characterized in that, The baffle (311) has a groove (317) through which the hydraulic cylinder (33) pipe passes.

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