Quick connecting device and overhead working truck

Abstract

The utility model provides a quick connecting device, an overhead working truck and an arm support for the overhead working truck, the quick connecting device comprises a connecting rod mechanism, the connecting rod mechanism comprises a first connecting rod, a second connecting rod, a swing driving cylinder and a connecting arm for quickly connecting the arm support, the two ends of the first connecting rod are respectively and correspondingly hinged with the connecting arm and the second connecting rod; the connecting arm and the second connecting rod are both hinged to the swing driving cylinder. One end of the variable-amplitude driving cylinder is hinged to the connecting arm, the other end of the variable-amplitude driving cylinder is hinged to the arm frame, and the variable-amplitude driving cylinder is used for driving the connecting arm to rotate around the arm frame; and the quick release frame is connected with the swing driving cylinder and used for quickly connecting the working part, and the swing driving cylinder is used for driving the quick connecting working part to swing through the quick release frame and the connecting rod mechanism. The quick connecting device is used for quickly connecting the arm support and the working part, quick disassembly and assembly can be achieved, meanwhile, the working part can have the freedom degree in multiple directions through a linkage structure of the connecting rod mechanism, and the flexibility of the overhead working truck is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of garden machinery, in particular to a quick-connect device and an aerial work vehicle. Background Art

[0002] Aerial work vehicles have replaced traditional pruning in gardening operations. Various aerial work vehicles are used in gardening operation scenes. They have high pruning efficiency and can prune high branches, reducing the cost of pruning and maintenance of garden trees.

[0003] In garden aerial work vehicles, the booms are mostly in the form of telescopic arms and folding arms, which are slightly insufficient in flexibility to a certain extent, cannot allow the sawmill to have freedom in multiple directions, are inconvenient to disassemble and assemble, and cannot perform complex tree pruning. Utility Model Content

[0004] The main purpose of the utility model is to provide a quick-connect device and an aerial work vehicle, aiming to solve the technical problems of poor flexibility and inconvenient assembly and disassembly of the aerial work vehicle in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a quick-connect device for the boom of an aerial work vehicle, the quick-connect device comprising: a connecting rod mechanism, comprising a first connecting rod, a second connecting rod, a swing drive cylinder and a connecting arm for quick connection to the boom, the two ends of the first connecting rod are respectively correspondingly hinged to the connecting arm and the second connecting rod, the connecting arm and the second connecting rod are both hinged to the swing drive cylinder; a variable amplitude drive cylinder, one end of which is hinged to the connecting arm, and the other end is used to be hinged to the boom, the variable amplitude drive cylinder is used to drive the connecting arm to rotate around the boom; a quick-release frame, which is connected to the swing drive cylinder and is used for quick connection of working parts, and the swing drive cylinder is used to drive the quick-connect working parts to swing through the quick-release frame and the connecting rod mechanism.

[0006] In an embodiment of the utility model, the quick-release frame includes: a connecting bracket, which is provided with a connecting pin hole, and the connecting pin hole is used for quick connection with the working component through a movable pin shaft; a fixed shaft, which is fixed to the connecting bracket and is used for quick connection with the working component.

[0007] In an embodiment of the utility model, the connecting bracket is provided with an installation space for accommodating the swing drive cylinder, and two output ends of the swing drive cylinder are both connected to the connecting bracket.

[0008] In an embodiment of the utility model, the connecting bracket includes a connecting vertical plate and two mounting horizontal plates, the two ends of the connecting vertical plate are respectively connected to the two mounting horizontal plates, the connecting vertical plate and the two mounting horizontal plates form the mounting space, and the two output ends of the swing drive cylinder are respectively connected to the two mounting horizontal plates.

[0009] In an embodiment of the utility model, the quick-connect device further comprises a plurality of high-strength connectors, and the output end and the mounting cross plate are connected via the plurality of high-strength connectors.

[0010] In an embodiment of the utility model, the quick-connect device further comprises a reinforcing connecting member, and the reinforcing connecting member passes through the swing drive cylinder and the two mounting cross plates.

[0011] In an embodiment of the utility model, the quick-connect device also includes a leveling drive cylinder, one end of the leveling drive cylinder is hinged to the connecting arm, and the other end is hinged to the first connecting rod and the second connecting rod at a linkage hinge point. The leveling drive cylinder is used to drive the quick-release frame to move through the connecting rod mechanism and adjust the angle of the working part in the vertical direction.

[0012] In an embodiment of the utility model, the first connecting rod includes two first connecting plates, and the connecting arm and the second connecting rod are both connected between the two first connecting plates.

[0013] In an embodiment of the utility model, the second connecting rod includes two second connecting plates, and the amplitude variation driving cylinder is connected between the two second connecting plates.

[0014] The utility model also provides an aerial work vehicle, which comprises an arm frame and the quick-connect device as described above.

[0015] Through the above technical solution, the quick-connect device provided by the embodiment of the utility model has the following beneficial effects:

[0016] When a quick-connect device is used to connect the working part and the boom of the aerial work vehicle, the quick-connect device can be quickly connected to the boom of the aerial work vehicle through the connecting arm and the variable amplitude drive cylinder. The quick-connect device can be quickly connected to the working part of the aerial work vehicle through the quick-release frame, which can realize the quick connection of the boom and the working part, and is convenient for assembly. When disassembly is required, the working part and the boom can be quickly removed to achieve rapid disassembly and assembly. When the angle or direction of the working part needs to be adjusted, the connecting arm can be driven by the variable amplitude drive cylinder to rotate around the boom, and the linkage structure of the connecting rod mechanism can drive the quick-release frame and the working part to rotate, or drive the quick-release frame and the working part to swing through the swing drive cylinder, so that the working part has multiple degrees of freedom in multiple directions, and the flexibility is high. The quick-connect device in the utility model is used for quickly connecting the boom and the working part, which can realize rapid disassembly and assembly, and can also realize the working part has multiple degrees of freedom in multiple directions through the linkage structure of the connecting rod mechanism, thereby improving the flexibility of the aerial work vehicle.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of a quick-connect device in one embodiment of the utility model at a viewing angle;

[0020] Figure 2 It is a structural schematic diagram of a quick-connect device according to one embodiment of the utility model at another viewing angle;

[0021] Figure 3 It is a schematic diagram of the exploded structure of a quick-connect device according to one embodiment of the utility model.

[0022] Description of Reference Numerals

[0023] Label Name Label Name

[0024] 100 Quick-connect device 31 Connecting bracket

[0025] 1 Linkage mechanism 311 Connecting pin hole

[0026] 11 First connecting rod 312 Installation space

[0027] 111 first connecting plate 313 connecting vertical plate

[0028] 12 Second connecting rod 3131 avoidance hole

[0029] 121 Second connecting plate 314 Installing horizontal plate

[0030] 13 Swing drive cylinder 32 Fixed shaft

[0031] 14 Connecting arm 4 High strength connector

[0032] 2 Luffing drive cylinder 5 Strengthening connection

[0033] 3 Quick release bracket 6 Leveling drive cylinder DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] The quick-connect device according to the present utility model is described below with reference to the accompanying drawings.

[0036] like Figures 1 to 3As shown, in an embodiment of the utility model, a quick-connect device 100 is used for a boom of an aerial work vehicle, and the quick-connect device 100 includes a connecting rod mechanism 1, a variable amplitude drive cylinder 2 and a quick-release frame 3. The connecting rod mechanism 1 includes a first connecting rod 11, a second connecting rod 12, a swing drive cylinder 13 and a connecting arm 14 for quick-connecting the boom. The two ends of the first connecting rod 11 correspond to the hinged connecting arm 14 and the second connecting rod 12, respectively, and the connecting arm 14 and the second connecting rod 12 are hinged to the swing drive cylinder 13; one end of the variable amplitude drive cylinder 2 is hinged to the connecting arm 14, and the other end is used to be hinged to the boom, and the variable amplitude drive cylinder 2 is used to drive the connecting arm 14 to rotate around the boom; the quick-release frame 3 is connected to the swing drive cylinder 13 and is used for quick-connecting working parts, and the swing drive cylinder 13 is used to drive the quick-connect working parts to swing through the quick-release frame 3 and the connecting rod mechanism 1.

[0037] It can be understood that the working component in this embodiment can be a sawmill or a work platform, and the aerial work vehicle can be an aerial branch pruning vehicle in the prior art. Figure 1 Points A and B in the figure are used to connect with the boom, and points A and B are respectively the first quick-connection part and the second quick-connection part, which can be quickly connected by shaft fixing; points C and D are used to quickly connect with the working part, and points C and D are respectively the third quick-connection part and the fourth quick-connection part. The rear end of the variable amplitude driving cylinder 2 is used to connect with the boom, and the front end of the variable amplitude driving cylinder 2 is hinged to the connecting arm 14, and the rear end of the connecting arm 14 is used to connect with the boom, and the front end of the connecting arm 14 is hinged to the swing driving cylinder 13.

[0038] When the quick-connect device 100 in this embodiment is used to connect the working part and the boom of the aerial work vehicle, the quick-connect device 100 can be quickly connected to the boom of the aerial work vehicle through the connecting arm 14 and the variable amplitude drive cylinder 2, and the quick-connect device 100 can be quickly connected to the working part of the aerial work vehicle through the quick-release frame 3, which can realize the quick connection between the boom and the working part, and is convenient for assembly. When disassembly is required, the working part and the boom can be quickly removed to achieve rapid disassembly and assembly. When the angle or direction of the working part needs to be adjusted, the variable amplitude drive cylinder 2 can drive the connecting arm 14 to rotate around the boom, and the linkage structure of the connecting rod mechanism 1 can drive the quick-release frame 3 and the working part to rotate, or drive the quick-release frame 3 and the working part to swing through the swing drive cylinder 13, so that the working part has multiple degrees of freedom in multiple directions, and the flexibility is high. The quick-connect device 100 in this embodiment is used for quickly connecting the boom and the working part, which can realize rapid disassembly and assembly, and can also realize the working part has multiple degrees of freedom in multiple directions through the linkage structure of the connecting rod mechanism 1, thereby improving the flexibility of the aerial work vehicle.

[0039] The variable amplitude driving cylinder 2 in this embodiment can adopt a variable amplitude oil cylinder, and the swing driving cylinder 13 can adopt a swing oil cylinder. The connecting arm 14 can be driven to rotate around the arm frame by extending and contracting the variable amplitude driving cylinder 2. The swing driving cylinder 13 can swing in the left and right directions, so that the quick-release frame 3 can achieve multiple degrees of freedom movement, so that the sawmill or work platform connected to it is more flexible, the working efficiency is increased, and it is convenient and quick, filling the gap in complex working conditions in garden pruning.

[0040] In one embodiment, the quick-release frame 3 includes a connecting bracket 31 and a fixed shaft 32. The connecting bracket 31 is provided with a connecting pin hole 311, and the connecting pin hole 311 is used to quickly connect with the working part through a movable pin shaft; the fixed shaft 32 is fixed to the connecting bracket 31 and is used to quickly connect with the working part. The fixed shaft 32 is arranged at the connection point C, and the fixed shaft 32 can be welded to the connecting bracket 31 by welding. The sawmill or work platform matched with the fixed shaft 32 can be matched with the fixed shaft 32 through a semi-closed shaft hole. The connecting pin hole 311 is arranged at the connection point D, and can be matched with the movable pin shaft clearance, and fixed by a spring pin, so that quick removal and fixation can be achieved. In this embodiment, the upper end of the quick-release frame 3 is provided with a fixed shaft 32, and the sawmill or work platform assembled with the fixed shaft 32 can be provided with a semi-open shaft hole, so that it can be quickly aligned during assembly. The lower end is provided with a connecting pin hole 311, and is matched with a pluggable movable pin shaft, and is fixed by a spring pin, which is firm and convenient, and can realize quick assembly of the sawmill or work platform, which is convenient and fast. It should be noted that the connecting bracket 31 is provided with an installation space 312 for accommodating the swing drive cylinder 13, and both output ends of the swing drive cylinder 13 are connected to the connecting bracket 31. In this embodiment, the connection and fixation of the swing drive cylinder 13 is a double insurance fixation, and the connecting bracket 31 cooperates with the swing drive cylinder 13 to form a straddle-type connection structure, which can ensure the output torque of the swing drive cylinder 13 on both sides.

[0041] Specifically, the connecting bracket 31 includes a connecting vertical plate 313 and two mounting horizontal plates 314. The two ends of the connecting vertical plate 313 are respectively connected to the two mounting horizontal plates 314. The connecting vertical plate 313 and the two mounting horizontal plates 314 enclose an installation space 312. The two output ends of the swing drive cylinder 13 are respectively connected to the two mounting horizontal plates 314. The mounting horizontal plates 314 in this embodiment are provided with a connecting plane connected to the swing drive cylinder 13. The cross section of the connecting bracket 31 in this embodiment is U-shaped and has a simple structure. The connecting vertical plate 313 is provided with an avoidance hole 3131 for avoiding the swing drive cylinder 13 to avoid interference between the connecting bracket 31 and the swing drive cylinder 13. The connecting bracket 31 in this embodiment also includes a reinforcing side plate located on the left and right sides. The reinforcing side plate is provided with a triangular reinforcing structure at the position corresponding to the mounting horizontal plate 314, which can improve the structural strength of the connecting bracket 31.

[0042] like Figure 3As shown, the quick-connect device 100 further includes a plurality of high-strength connectors 4, and the output end and the mounting cross plate 314 are connected by the plurality of high-strength connectors 4. The high-strength connectors 4 in this embodiment can be high-strength bolts, and the upper and lower parts of the swing drive cylinder 13 are fixed by a plurality of high-strength bolts. By arranging a circle of high-strength bolts on the upper and lower parts of the swing drive cylinder 13, the connection between the connecting bracket 31 and the swing drive cylinder 13 is safe and stable.

[0043] The quick-connect device 100 further includes a reinforcing connector 5, which penetrates the swing drive cylinder 13 and the two mounting cross plates 314. The reinforcing connector 5 in this embodiment can be a high-strength long screw, and the upper and lower parts of the swing drive cylinder 13 are fixed with a plurality of high-strength bolts, and a high-strength long screw is used to cross and fix the middle of the connecting bracket 31 from the middle, so as to realize a double insurance connection, making the connection safer and more stable.

[0044] like Figure 1 and Figure 2 As shown, the quick-connect device 100 also includes a leveling drive cylinder 6, one end of which is hinged to the connecting arm 14, and the other end is hinged to the first connecting rod 11 and the second connecting rod 12 at a linkage hinge point. The leveling drive cylinder 6 is used to drive the quick-release frame 3 to move and adjust the angle of the working part in the vertical direction through the connecting rod mechanism 1. In this embodiment, the rear end of the leveling drive cylinder 6 is hinged to the rear end of the connecting arm 14, the front end of the leveling drive cylinder 6 is hinged at point E, and the first connecting rod 11, the second connecting rod 12 and the leveling drive cylinder 6 are hinged at point E, and can be hinged through a pin.

[0045] The leveling drive cylinder 6 in this embodiment can be a leveling oil cylinder. When the working platform connected to the quick-release frame 3 generates an angle in the horizontal direction, the aerial work vehicle can control the extension and retraction of the leveling drive cylinder 6 through the angle detection of the angle sensor, so that the trimming vehicle always maintains a horizontal state when configuring the working platform to ensure safety. The quick-release frame 3 can maintain a horizontal state at any time by extending and retracting the leveling drive cylinder 6, so that the working platform connected to the quick-release frame 3 remains horizontal, and the vertical angle of the sawmill can be adjusted.

[0046] Specifically, the first connecting rod 11, the second connecting rod 12, the swing drive cylinder 13 and the connecting arm 14 in this embodiment constitute a four-bar linkage 1. The extension and contraction of the leveling drive cylinder 6 causes the connected first connecting rod 11 to rotate around the lower fixed point of the first connecting rod 11, pulling the second connecting rod 12 to drive the swing drive cylinder 13 to rotate around the lower fixed axis 32 hinge point of the swing drive cylinder 13.

[0047] In one embodiment, the first connecting rod 11 includes two first connecting plates 111, and the connecting arm 14 and the second connecting rod 12 are both connected between the two first connecting plates 111. In this embodiment, the two first connecting plates 111 are both hinged to the connecting arm 14, which can improve the connection stability between the first connecting rod 11 and the connecting arm 14. In addition, the second connecting rod 12 includes two second connecting plates 121, and the variable amplitude driving cylinder 2 is connected between the two second connecting plates 121. In this embodiment, the second connecting plates 121 are both connected to the variable amplitude driving cylinder 2, which can further improve the connection stability of the connecting rod mechanism 1.

[0048] The utility model also provides an aerial work vehicle, which includes a wire body and the quick-connect device 100 as described above. The specific structure of the quick-connect device 100 refers to the above embodiment. Since the aerial work vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0049] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A quick-connect device for an aerial work vehicle boom, characterized in that: The quick-connect device (100) comprises: A connecting rod mechanism (1) comprises a first connecting rod (11), a second connecting rod (12), a swing drive cylinder (13) and a connecting arm (14) for quick connection with the arm frame, wherein two ends of the first connecting rod (11) are respectively hinged to the connecting arm (14) and the second connecting rod (12), and the connecting arm (14) and the second connecting rod (12) are both hinged to the swing drive cylinder (13); A variable-length drive cylinder (2), one end of which is hinged to the connecting arm (14) and the other end of which is used to be hinged to the boom, and the variable-length drive cylinder (2) is used to drive the connecting arm (14) to rotate around the boom; The quick-release frame (3) is connected to the swing drive cylinder (13) and is used for quick-connecting working parts. The swing drive cylinder (13) is used to drive the quick-connecting working parts to swing through the quick-release frame (3) and the connecting rod mechanism (1).

2. The quick-connect device according to claim 1, characterized in that: The quick-release frame (3) comprises: A connecting bracket (31) is provided with a connecting pin hole (311), wherein the connecting pin hole (311) is used for quick connection with the working component through a movable pin shaft; A fixed shaft (32) is fixed to the connecting bracket (31) and is used for quick connection with the working component.

3. The quick-connect device according to claim 2, characterized in that: The connecting bracket (31) is provided with an installation space (312) for accommodating the swing drive cylinder (13), and both output ends of the swing drive cylinder (13) are connected to the connecting bracket (31).

4. The quick-connect device according to claim 3, characterized in that: The connecting bracket (31) comprises a connecting vertical plate (313) and two mounting horizontal plates (314), the two ends of the connecting vertical plate (313) are respectively connected to the two mounting horizontal plates (314), the connecting vertical plate (313) and the two mounting horizontal plates (314) enclose the mounting space (312), and the two output ends of the swing drive cylinder (13) are respectively connected to the two mounting horizontal plates (314).

5. The quick-connect device according to claim 4, characterized in that: The quick-connect device (100) further comprises a plurality of high-strength connectors (4), and the output end and the mounting cross plate (314) are connected via the plurality of high-strength connectors (4).

6. The quick-connect device according to claim 4, characterized in that: The quick-connect device (100) further comprises a reinforcing connection member (5), wherein the reinforcing connection member (5) passes through the swing drive cylinder (13) and the two mounting transverse plates (314).

7. The quick-connect device according to any one of claims 1 to 6, characterized in that: The quick-connect device (100) further comprises a leveling drive cylinder (6), one end of which is hinged to the connecting arm (14), and the other end of which is hinged to the first connecting rod (11) and the second connecting rod (12) at a linkage hinge point. The leveling drive cylinder (6) is used to drive the quick-release frame (3) to move and adjust the angle of the working component in the vertical direction through the connecting rod mechanism (1).

8. The quick-connect device according to any one of claims 1 to 6, characterized in that: The first connecting rod (11) comprises two first connecting plates (111), and the connecting arm (14) and the second connecting rod (12) are both connected between the two first connecting plates (111).

9. The quick-connect device according to any one of claims 1 to 6, characterized in that: The second connecting rod (12) comprises two second connecting plates (121), and the amplitude variation driving cylinder (2) is connected between the two second connecting plates (121).

10. An aerial work vehicle, characterized in that: The aerial work vehicle comprises a boom and a quick-connect device (100) as claimed in any one of claims 1 to 9.

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