Garbage truck pail mechanism

Abstract

The invention relates to a barrel lifting mechanism of a garbage truck. The barrel lifting mechanism comprises a lifting and overturning assembly, a barrel pressing assembly and a collecting assembly. The lifting and overturning assembly comprises an overturning frame, a driving arm and a first oil cylinder. One end of the driving arm is hinged to the tail of the garbage truck, and the other end of the driving arm is provided with the overturning frame. A cylinder body of the first oil cylinder is connected with the retracting assembly, and a piston rod of the first oil cylinder is connected with the driving arm. The barrel pressing assembly is arranged on the overturning frame and comprises a barrel pressing oil cylinder and a barrel pressing plate. The can pressing oil cylinder can drive the can pressing plate to clamp a garbage can; the folding assembly comprises a second oil cylinder and a rocker arm. One end of the rocker arm is hinged to the garbage truck, and the other end of the rocker arm is hinged to a cylinder body of the first oil cylinder. The two ends of the second oil cylinder are connected with the garbage truck and the rocker arm respectively. The garbage truck pail mechanism provided by the invention is used for increasing the overturning angle of the pail mechanism in a driving state on the premise of keeping the structural safety and the working efficiency of the garbage truck pail mechanism.

Description

Technical Field

[0001] The invention relates to a bucket lifting mechanism for a garbage truck, belonging to the technical field of special vehicles. Background Art

[0002] The bucket lifting mechanism is a device specially used on garbage trucks, which is composed of a lifting and flipping mechanism, a bucket pressing mechanism, a hydraulic system, etc. When collecting and transporting garbage, the garbage can is first placed in the corresponding position of the bucket hanging teeth at the rear of the bucket lifting mechanism, and the bucket is fixed by the bucket pressing mechanism. Then, the garbage can is lifted and flipped by the lifting and flipping mechanism to complete the dumping of the garbage in the garbage can into the compartment of the garbage truck, thereby realizing the collection of garbage. In order to avoid the taillights being blocked by structures such as the bucket rack and the flip rack during driving, some existing garbage trucks will directly use the bucket lifting operation to lift the bucket lifting mechanism before entering the driving state, so that it can be flipped upward to the garbage bin dumping position. However, the bucket rack and flip rack in the prior art are not lifted to the sufficient height and angle due to the limitation of the position for dumping garbage, so that the bucket rack, flip rack and other structures are located outside the rear of the garbage truck, which increases the total length of the garbage truck, deteriorates its passability, and increases the possibility of causing danger to the following vehicle in the event of a rear-end collision. If the bucket lifting mechanism uses a single cylinder to lift at a large angle to reduce the length of the tail, due to the limitation of the structural size, the lever arm of some stroke connecting rods will be too small during the flipping process, resulting in excessive force on some shafts or connecting rods, which can easily cause damage, or large-angle lifting cannot be achieved due to space limitations. Summary of the invention

[0003] The purpose of the present invention is to overcome the problems in the prior art and provide a garbage truck bucket lifting mechanism capable of changing the lifting height.

[0004] In order to solve the above technical problems, the technical solution proposed by the present invention is: a garbage truck bucket lifting mechanism, comprising: a lifting and flipping assembly, a bucket pressing assembly and a folding assembly; the lifting and flipping assembly is installed at the rear of the garbage truck, and comprises: a flip frame, an active arm and a first oil cylinder; one end of the active arm is hinged at the rear of the garbage truck, and the other end is installed with the flip frame; the cylinder body of the first oil cylinder is connected to the folding assembly, and the piston rod is connected to the active arm; the bucket pressing assembly is arranged on the flip frame, and comprises a bucket pressing oil cylinder and a bucket pressing plate; the bucket pressing oil cylinder can drive the bucket pressing plate to clamp the garbage truck; the folding assembly comprises a second oil cylinder and a rocker arm; one end of the rocker arm is hinged on the garbage truck, and the other end is hinged to the cylinder body of the first oil cylinder; the two ends of the second oil cylinder are respectively connected to the garbage truck and the rocker arm; the second oil cylinder can drive the rocker arm to swing between the first position and the second position, thereby changing the distance between the hinge point of the first oil cylinder and the rocker arm and the hinge point of the active arm and the garbage truck.

[0005] A further improvement of the above technical solution is that: the garbage truck is provided with a limit block to limit the first position or the second position of the rocker arm.

[0006] A further improvement of the above technical solution is that: the active arm is also provided with a driven arm and a connecting rod next to the active arm, which together with the active arm and the garbage truck form a four-link structure.

[0007] The garbage truck bucket lifting mechanism provided by the present invention is used to increase the flipping angle of the bucket lifting mechanism in a driving state (non-operating state) while maintaining the structural safety of the garbage truck bucket lifting mechanism and maintaining work efficiency, so that the bucket lifting mechanism can be further flipped upward on the basis of the original maximum flipping angle to shorten the length of the bucket lifting mechanism extending out of the rear of the vehicle, or even be completely retracted into the rear size of the box body, so as to ensure or improve the vehicle's driving passability and ensure that in the event of a rear-end collision, the damage that the structural parts extending out of the rear of the box body may cause to the following vehicle is reduced or even eliminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention will be further described below in conjunction with the accompanying drawings.

[0009] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention.

[0010] Figure 2 yes Figure 1 Schematic diagram of the local enlarged structure.

[0011] Figure 3 yes Figure 1 A partially enlarged structural diagram of the clamping trash can state.

[0012] Figure 4 yes Figure 1 A partially enlarged structural diagram of the unclamped trash can state.

[0013] Figure 5 yes Figure 1 Schematic diagram of a partially enlarged structure in a non-operating state.

[0014] The numbers in the figure are as follows: 1-active arm, 2-driven arm, 3-barrel pressing cylinder, 4-turning frame, 5-first cylinder, 6-rocker arm, 7-second cylinder, 8-barrel pressing plate, 9-limiting block. DETAILED DESCRIPTION Example

[0015] The garbage truck bucket lifting mechanism of this embodiment includes: a lifting and flipping assembly, a bucket pressing assembly and a folding assembly. Figure 1 and Figure 2As shown, the lifting and flipping assembly is installed at the rear of the garbage truck, and includes: a flip frame 4, an active arm 1 and a first cylinder 5; one end of the active arm 1 is hinged at the rear of the garbage truck, and the other end is installed with the flip frame 4; the cylinder body of the first cylinder 5 is connected to the folding assembly, and the piston rod is connected to the active arm 1; the barrel pressing assembly is arranged on the flip frame 4, including a barrel pressing cylinder 3 and a barrel pressing plate 8; the barrel pressing cylinder 3 can drive the barrel pressing plate 8 to clamp the garbage can; the folding assembly includes a second cylinder 7 and a rocker arm 6; one end of the rocker arm 6 is hinged on the garbage truck, and the other end is hinged to the cylinder body of the first cylinder 5; the two ends of the second cylinder 7 are respectively connected to the garbage truck and the rocker arm 6.

[0016] In the garbage truck bucket lifting mechanism of this embodiment, when the second oil cylinder 7 is retracted, the rocker arm 6 is rotated to the position as shown in FIG. Figure 4 As shown in the position, then, place the trash can in the appropriate position; the barrel pressing cylinder 3 is activated to drive the barrel pressing plate 8 to clamp the trash can, as shown in the figure. Figure 3 Afterwards, the first oil cylinder 5 acts to drive the active arm 1 and the flip frame 4 to move as shown. Figure 2 position, and dump the garbage; finally, the first cylinder 5 reverses and resets, and the barrel pressing cylinder 3 reverses and resets; completing one garbage dumping.

[0017] In the garbage truck bucket lifting mechanism of this embodiment, when the second oil cylinder 7 is not in operation, the second oil cylinder 7 extends to push the rocker arm 6 to rotate to the position as shown in FIG. Figure 5 As shown in the position, at this time, the hinge point of the first cylinder 5 and the rocker arm 6 is closer than the hinge point of the active arm 1 and the garbage truck; it is equivalent to the second cylinder 7 pushing the first cylinder 5 closer to the rotation axis of the active arm 1; that is, the active arm 1 is driven to rotate the first cylinder 5, and relative to the rotation of the active arm 1, it moves a certain distance toward the tail of the garbage truck. In this way, when the first cylinder 5 is activated and pushes the tipping frame 4 and the active arm 1 to rotate, they can rotate a greater angle than in the working state, so that the tipping frame 4 and the active arm 1 do not exceed the tail of the garbage truck.

[0018] The garbage truck is provided with a limit block 9. When in operation, the rocker arm 6 rests on the limit block 9, and the limit block 9 provides support for the rocker arm 6 to eliminate the force applied to the second oil cylinder 7 during operation and ensure the bucket lifting effect.

[0019] The active arm 1 is also provided with a driven arm 2 and a connecting rod, which together with the active arm 1 and the garbage truck form a four-link structure. In this way, the rotation angle of the active arm 1 can be controlled by adjusting the size of the first oil cylinder 5, the driven arm 2, the connecting rod and other structures.

[0020] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. For example: the cylinder can be replaced by an electric push rod or a pneumatic cylinder to achieve the same function; the folding assembly can have different installation positions such as top-down installation or bottom-up installation or tilted installation; the cylinder of the folding assembly and the first cylinder can be directly connected without a rocker arm, and the same function can be achieved by adding a slide groove or other methods to limit the position. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A garbage truck bucket lifting mechanism, characterized in that: include: Lifting and flipping assembly, barrel pressing assembly and stowing assembly; The lifting and flipping assembly is installed at the rear of the garbage truck, and includes: a flip frame, an active arm and a first cylinder; one end of the active arm is hinged to the rear of the garbage truck, and the other end is installed with the flip frame; the cylinder body of the first cylinder is connected to the folding assembly, and the piston rod is connected to the active arm; the barrel pressing assembly is arranged on the flip frame, and includes a barrel pressing cylinder and a barrel pressing plate; the barrel pressing cylinder can drive the barrel pressing plate to clamp the garbage can; the folding assembly includes a second cylinder and a rocker arm; one end of the rocker arm is hinged to the garbage truck, and the other end is hinged to the cylinder body of the first cylinder; the two ends of the second cylinder are respectively connected to the garbage truck and the rocker arm; the second cylinder can drive the rocker arm to swing between the first position and the second position, thereby changing the distance between the hinge point of the first cylinder and the rocker arm and the hinge point of the active arm and the garbage truck.

2. The garbage truck bucket lifting mechanism according to claim 1, characterized in that: The garbage truck is provided with a limit block to limit the first position or the second position of the rocker arm.

3. The garbage truck bucket lifting mechanism according to claim 1, characterized in that: The active arm is also provided with a driven arm and a connecting rod next to the active arm, which together with the active arm and the garbage truck form a four-link structure.

Images