Composite connecting rod type lifting mechanism

Abstract

The invention discloses a composite connecting rod type lifting mechanism, and belongs to the technical field of garbage collecting devices. Comprising a pushing oil cylinder, three groups of four-connecting-rod mechanisms and a barrel holding mechanism, and a base, a first connecting rod, a second connecting rod and an upper connecting rod form the first group of four-connecting-rod mechanisms; the base, the second connecting rod, the lifting arm and the lifting oil cylinder form a second four-connecting-rod mechanism, and the upper connecting rod, the lifting arm, the pull rod and the adjusting arm form a third four-connecting-rod mechanism; while the pushing oil cylinder and the lifting oil cylinder retract at the same time and the mechanism is recycled, the garbage can is turned upwards, garbage is poured into the vehicle-mounted garbage can after the garbage can arrives at the position, then reverse action is conducted, the garbage can is put back to the original position, the pushing oil cylinder retracts, and the mechanism retracts and resets to the initial state; the garbage can can be remotely lifted and overturned, manual operation is not needed, the automation degree is high, and the problem that an existing garbage truck needs to move the garbage can in advance is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of garbage collection devices and relates to a composite connecting rod type lifting mechanism. Background Art

[0002] As the requirements for the mechanization of domestic sanitation equipment gradually increase, sanitation vehicles are developing towards multifunctional and integrated trends, and labor-saving and convenient garbage collection devices have become the focus of research. At present, there are various modes of garbage collection equipment on the market, all of which require manpower to move the garbage can to the front of the equipment for operation. This working method requires a sanitation worker in addition to the driver, resulting in a waste of human resources. In addition, during work, people will come into direct contact with garbage, which increases the probability of virus and bacterial infection and poses a safety hazard. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and proposes a composite connecting rod lifting mechanism that can remotely lift and flip the trash can, solving the problem of needing to move the trash can first. The present invention is achieved through the following technical solutions: A composite link type lifting mechanism comprises a pushing oil cylinder, three groups of four-link mechanisms and a bucket holding mechanism, wherein a base, a first link, a second link and an upper link constitute a first group of four-link mechanisms; one end of the first link is hinged to the upper link, and the other end of the first link is hinged to the base; one end of the second link is hinged to the base, and the other end of the second link is hinged to the upper link through a connecting shaft; one end of the pushing oil cylinder is hinged to the base, and the other end of the pushing oil cylinder is hinged to the first link; The base, the second connecting rod, the lifting arm and the lifting cylinder form a second four-bar linkage, one end of the connecting shaft is connected to the second connecting rod, and the other end is connected to the upper connecting rod. At the same time, the connecting shaft passes through the lifting arm and is rotatably connected to the lifting arm. One end of the lifting cylinder is hinged to the base, and the other end of the lifting cylinder is hinged to the lifting arm. The upper connecting rod, the lifting arm, the pulling rod and the adjusting arm form a third four-bar linkage. The upper connecting rod and the lifting arm are connected by a connecting shaft. The lifting arm is hinged to the adjusting arm. One end of the pulling rod is hinged to the upper connecting rod, and the other end of the pulling rod is hinged to the adjusting arm. The adjusting arm is connected to the barrel holding mechanism.

[0004] Furthermore, the lifting arm is an L-shaped structure; the connecting shaft passes through the middle of the lifting arm and is hinged to the lifting arm, the other end of the lifting cylinder is hinged to the end of the lifting arm; the bottom of the lifting arm is hinged to the adjusting arm.

[0005] Furthermore, the barrel holding mechanism includes a longitudinal arm, a barrel holding cylinder, a swivel arm, a gear set and a barrel holding arm; the longitudinal arm is welded to the adjusting arm, one end of the barrel holding cylinder is hinged to the adjusting arm, the other end of the barrel holding cylinder is hinged to the swivel arm, the other end of the swivel arm is connected to the gear set, and the gear set is rotatably connected to the longitudinal arm; the gear set is meshingly connected to the barrel holding arm.

[0006] Furthermore, the barrel holding arm includes two semicircular arc arms with one end hinged and the other end not connected, and the outer walls of the hinge shafts of the two arc arms are provided with rotating teeth, which are meshed with the gear set.

[0007] Furthermore, the inner side and the end of the arc-shaped arm are rotatably connected with nylon rollers.

[0008] Furthermore, the inner sides and contacting ends of the two arc-shaped arms of the barrel holding arm are hinged with brackets, and the ends of the brackets are rotatably connected to nylon rollers.

[0009] Furthermore, a rubber belt is connected between two brackets of the same arc-shaped arm.

[0010] Furthermore, a spring is connected between the end of the bracket close to the inner side of the arc-shaped arm and the arc-shaped arm.

[0011] Furthermore, the base is an L-shaped structure.

[0012] Furthermore, the base is fixed on a sanitation vehicle.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: 1. When the present invention is working, the pushing cylinder extends, and the bucket holding mechanism extends forward. When the trash can is reached, the bucket holding cylinder extends, and the bucket holding arm clamps the trash can. At this time, the pushing cylinder and the lifting cylinder retract at the same time. When the mechanism is recovered, the trash can is flipped upward. After reaching the position, the garbage is poured into the vehicle-mounted trash box, and then the reverse action is performed to put the trash can back to its original position, and the pushing cylinder is retracted to retract the mechanism to the initial state.

[0014] 2. The present invention realizes the automatic recycling of the trash can and the dumping and collection of garbage, has a novel structure, a high degree of automation, is convenient and efficient, and can well meet the needs of users. During the whole process, people do not come into direct contact with the garbage, which is hygienic and environmentally friendly.

[0015] 3. The bucket holding mechanism of this device is suitable for 240L and 120L standard trash cans. According to the size of the trash can, the bucket holding mechanism can also be disassembled and replaced with bucket holding mechanisms of other sizes to achieve better compatibility.

[0016] 4. The trash bin holding mechanism of this mechanism is equipped with nylon rollers and rubber belts. The rubber belts are used to hold and release the trash bin, which effectively protects the trash bin. After unloading the bin, the rubber belts are tightened and reset by the springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic front view of the present invention.

[0018] Figure 2 A schematic diagram of the back side of the present invention.

[0019] Figure 3 A top view of the present invention.

[0020] Figure 4 Schematic diagram of the barrel holding mechanism of the present invention in the open state.

[0021] Figure 5 Schematic diagram of the recycling state of the present invention.

[0022] Figure 6 A schematic diagram of the barrel holding state of the present invention being extended.

[0023] Figure 7 Schematic diagram of the flipping and dumping state of the present invention.

[0024] In the above picture: 1-base; 2-first connecting rod; 3-second connecting rod; 4-upper connecting rod; 5-pushing cylinder; 6-lifting arm; 7-lifting cylinder; 8-pull rod; 9-adjusting arm; 10-longitudinal arm; 11-bucket holding cylinder; 12-rotating arm; 13-gear set; 14-bucket holding arm; 15-nylon roller; 16-rubber belt; 17-spring; 18-trash can. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0026] See also Figures 1 to 7 The present embodiment proposes a composite link type lifting mechanism, including a pushing cylinder 5, three groups of four-link mechanisms and a bucket holding mechanism. The base 1, the first link 2, the second link 3 and the upper link 4 constitute the first group of four-link mechanisms; the base 1 is an L-shaped structure, the base 1 is fixed on the sanitation vehicle, one end of the first link 2 is hinged to the upper link 4, and the other end of the first link 2 is hinged to the base 1; one end of the second link 3 is hinged to the base 1, and the other end of the second link 3 is hinged to the upper link 4 through a connecting shaft; one end of the pushing cylinder 5 is hinged to the base 1, and the other end of the pushing cylinder 5 is hinged to the first link 2; the pushing cylinder 5 acts to push the first link 2 to move, and then pushes the upper link 4 to move. Since the base 1, the first link 2, the second link 3, and the upper link 4 form a parallel four-link mechanism, it can ensure that the angle of the upper link 4 remains unchanged when it is extended.

[0027] The base 1, the second connecting rod 3, the lifting arm 6, and the lifting cylinder 7 form a second set of four-bar linkages. One end of the connecting shaft is connected to the second connecting rod 3, and the other end is connected to the upper connecting rod 4. At the same time, the connecting shaft passes through the middle of the lifting arm 6 and is hinged to the lifting arm 6. One end of the lifting cylinder 7 is hinged to the base 1, and the other end of the lifting cylinder 7 is hinged to the end of the lifting arm 6. The lifting arm 6 is also an L-shaped structure. When the mechanism is extended, the lifting cylinder 7 is in an extended state, and the second connecting rod 3 drives the second set of four-bar linkages to extend. When the second set of four-bar linkages moves, its specific motion trajectory is used to adjust the height of the bucket holding mechanism, so that the bucket holding mechanism is basically at the same height when extended.

[0028] The upper connecting rod 4, the lifting arm 6, the pull rod 8, and the adjusting arm 9 form a third group of four-bar linkages. The upper connecting rod 4 and the lifting arm 6 are connected by a connecting shaft. The bottom of the lifting arm 6 is hinged to the adjusting arm 9. One end of the pull rod 8 is hinged to the end of the upper connecting rod 4, and the other end of the pull rod 8 is hinged to the adjusting arm 9. The adjusting arm 9 is connected to the barrel holding mechanism. When the mechanism is extended, since the angle of the upper connecting rod 4 does not change when it is extended, assuming that it is in a stationary state, the change in the angle of the lifting arm 6 drives the third group of four-bar linkages to move. Due to its specific motion trajectory, the angle of the adjusting arm 9 is adjusted, so that the barrel holding mechanism welded to the adjusting arm 9 is basically in a horizontal state when extended.

[0029] The first four-bar linkage mechanism and the second four-bar linkage mechanism share the base 1 and the second link 3 , and the third four-bar linkage mechanism shares the upper link 4 in the first four-bar linkage mechanism and the lifting arm 6 in the second four-bar linkage mechanism.

[0030] The barrel holding mechanism includes a longitudinal arm 10, a barrel holding cylinder 11, a rotating arm 12, a gear set 13 and a barrel holding arm 14; the longitudinal arm 10 is welded to the adjusting arm 9, one end of the barrel holding cylinder 11 is hinged to the adjusting arm 9, the other end of the barrel holding cylinder 11 is hinged to the rotating arm 12, the other end of the rotating arm 12 is connected to the gear set 13, and the gear set 13 is rotatably connected to the longitudinal arm 10; the barrel holding arm 14 includes two semicircular arc arms with one end hinged and the other end not connected, and the outer wall of the hinge shaft of the two arc arms is provided with rotating teeth, which are meshed with the gear set 13, and the two arc arms are driven to open and close by the rotation of the gear set 13; that is, the barrel holding cylinder 11 pushes the rotating arm 12 to move, and the rotating arm 12 drives the gear set 13 to rotate, and the opening and closing of the barrel holding arm 14 are realized by the rotation of the gear set 13.

[0031] The inner side and the contacting end of the two arc-shaped arms of the bucket holding arm 14 are both hinged with brackets, and the bracket ends are rotatably connected with nylon rollers 15, and a rubber belt 16 is connected between the two brackets of the same arc-shaped arm; a spring 17 is connected between the bracket end close to the inner side of the arc-shaped arm and the arc-shaped arm; when the bucket holding arm 14 is closed and tightly holds the trash can 18, the rubber belt 16 is tightened and pulls the nylon rollers 15 to clamp the trash can 18 forward and backward. After the bucket holding arm 14 is released, the spring 17 tightens the rubber belt 16 to reset.

[0032] The front view of the first four-link mechanism of the composite link type lifting mechanism in this embodiment is as follows: Figure 1 As shown in the figure, the second four-bar linkage and the third four-bar linkage are shown in the back view. Figure 2 The barrel holding mechanism is open and closed as shown in the top view. Figure 3 and local view Figure 4 The institution's recycling status is shown in Figure 5 The mechanism extends to hold the bucket. Figure 6 The lifting and flipping state of the mechanism is shown as Figure 7 shown.

[0033] This embodiment proposes a composite connecting rod type lifting mechanism whose working principle is: When the composite linkage lifting mechanism is lifting, the oil cylinder 5 is pushed back to drive the whole mechanism to retract, and the lifting cylinder 7 is retracted to drive the lifting arm 6 to lift upward. After it is in place, the garbage in the trash can 18 is poured into the vehicle-mounted trash box. The trash can 18 is put back to its original position by reverse action, the bucket arm 14 is opened to place the trash can, and then the oil cylinder 5 is pushed back to reset the whole mechanism.

[0034] When holding the trash can in the trash can holding mechanism, the deformation of the rubber belt 16 pulls the nylon roller 15, and the trash can holding action is completed by the tensioning of the rubber belt 16 and the front and rear clamping of the nylon roller 15, so as to effectively protect the trash can 18.

[0035] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A composite connecting rod lifting mechanism, characterized in that: It comprises a pushing cylinder (5), three groups of four-bar linkages and a barrel holding mechanism, wherein a base (1), a first linkage (2), a second linkage (3) and an upper linkage (4) form a first group of four-bar linkages; one end of the first linkage (2) is hinged to the upper linkage (4), and the other end of the first linkage (2) is hinged to the base (1); one end of the second linkage (3) is hinged to the base (1), and the other end of the second linkage (3) is hinged to the upper linkage (4) via a connecting shaft; one end of the pushing cylinder (5) is hinged to the base (1), and the other end of the pushing cylinder (5) is hinged to the first linkage (2); The base (1), the second connecting rod (3), the lifting arm (6), and the lifting cylinder (7) form a second four-bar linkage mechanism, one end of the connecting shaft is connected to the second connecting rod (3), and the other end is connected to the upper connecting rod (4), and the connecting shaft passes through the lifting arm (6) and is rotatably connected to the lifting arm (6), one end of the lifting cylinder (7) is hinged to the base (1), and the other end of the lifting cylinder (7) is hinged to the lifting arm (6); The upper connecting rod (4), the lifting arm (6), the pulling rod (8), and the adjusting arm (9) form a third four-bar linkage. The upper connecting rod (4) and the lifting arm (6) are connected via a connecting shaft. The lifting arm (6) is hinged to the adjusting arm (9). One end of the pulling rod (8) is hinged to the upper connecting rod (4), and the other end of the pulling rod (8) is hinged to the adjusting arm (9). The adjusting arm (9) is connected to the barrel holding mechanism.

2. A composite link type lifting mechanism according to claim 1, characterized in that: The lifting arm (6) is an L-shaped structure; the connecting shaft passes through the middle of the lifting arm (6) and is hinged to the lifting arm (6); the other end of the lifting cylinder (7) is hinged to the end of the lifting arm (6); and the bottom of the lifting arm (6) is hinged to the adjusting arm (9).

3. A composite link type lifting mechanism according to claim 1, characterized in that: The barrel holding mechanism comprises a longitudinal arm (10), a barrel holding cylinder (11), a rotating arm (12), a gear set (13) and a barrel holding arm (14); the longitudinal arm (10) is welded to the adjusting arm (9); one end of the barrel holding cylinder (11) is hinged to the adjusting arm (9); the other end of the barrel holding cylinder (11) is hinged to the rotating arm (12); the other end of the rotating arm (12) is connected to the gear set (13); the gear set (13) is rotatably connected to the longitudinal arm (10); and the gear set (13) is meshedly connected to the barrel holding arm (14).

4. A composite link type lifting mechanism according to claim 3, characterized in that: The barrel holding arm (14) comprises two semicircular arc-shaped arms, one end of which is hinged and the other end of which is not connected, and the outer walls of the hinge shafts of the two arc-shaped arms are provided with rotating teeth, and the rotating teeth are meshed with the gear set (13).

5. A composite link type lifting mechanism according to claim 4, characterized in that: The inner side and the end of the arc-shaped arm are rotatably connected to nylon rollers (15).

6. A composite link type lifting mechanism according to claim 5, characterized in that: The inner sides and contacting ends of the two arc-shaped arms of the barrel holding arm (14) are both hingedly connected with brackets, and the ends of the brackets are rotatably connected with nylon rollers (15).

7. A composite link type lifting mechanism according to claim 6, characterized in that: A rubber belt (16) is connected between the two brackets of the same arc-shaped arm.

8. The composite link type lifting mechanism according to claim 7, characterized in that: A spring (17) is connected between the end of the bracket close to the inner side of the arc-shaped arm and the arc-shaped arm.

9. The composite link type lifting mechanism according to claim 1, characterized in that: The base (1) is an L-shaped structure.

10. A composite link type lifting mechanism according to claim 9, characterized in that: The base (1) is fixed on the sanitation vehicle.

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