Dual-purpose hydraulic hook lock device

Abstract

The utility model relates to a dual-purpose hydraulic hook lock device which comprises upper hooks, a fixing plate, a hydraulic cylinder and a lower hook, the number of the upper hooks is two, the upper hooks are rotationally connected to the two sides of the fixing plate through first pin shafts respectively, the bottoms of the two upper hooks are rotationally connected with the fixed end of the hydraulic cylinder respectively, and the working end of the hydraulic cylinder is in transmission connection with a push plate. The middles of the two sides of the push plate are rotationally connected with two crossed lower hooks, connecting rods are hinged to the tops of the two lower hooks respectively, and the tops of the connecting rods are rotationally connected with the outer wall of the hydraulic cylinder. According to the scheme, the working end of the paddy field leveling stirrer can be vertically folded from the middle under the control of the hydraulic cylinder, so that the road trafficability and the transportation safety are ensured, the problem of ultra-wide transportation and mounting of agricultural machines and tools is fundamentally solved, and the working end of the paddy field leveling stirrer can also be horizontally pushed in the horizontal pushing direction. The robot can be stably in a working state in a longitudinal obstacle avoidance process, and the problem of inclination of the working end is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mechanical positioning technology, and in particular to a dual-purpose hydraulic hook lock device. Background Technology

[0002] Among agricultural machinery, the working end of the paddy field leveling mixer is relatively long. After being installed on a large folding rotary tiller, when it is transported on the road, because it is mostly used in farmland and the distance between the surrounding roads and fields is relatively narrow, it may damage the plants on both sides of the road during lateral transport, or obstacles on both sides of the road may hit the working end of the paddy field leveling mixer.

[0003] Given the current situation, existing technologies have developed foldable paddy field leveling mixers that can be pushed laterally during operation and folded for longitudinal transport when running on field paths or roads. However, during operation and transport, it has been found that this type of foldable paddy field leveling mixer lacks stability after prolonged use, whether folded longitudinally or unfolded laterally, and exhibits a certain degree of tilting. This tilting can damage the pivot at the folding joint, further increasing the tilt angle and affecting the equipment's performance. Utility Model Content

[0004] The purpose of this utility model is to provide a dual-purpose hydraulic hook lock device to solve the problems encountered in the above-mentioned background art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A dual-purpose hydraulic hook lock device includes an upper hook, a fixed plate, a hydraulic cylinder, and lower hooks. Two upper hooks are provided and are rotatably connected to both sides of the fixed plate via a first pin. The bottom of the two upper hooks is rotatably connected to the fixed end of the hydraulic cylinder. The working end of the hydraulic cylinder is drivenly connected to a push plate. The middle of both sides of the push plate is rotatably connected to two intersecting lower hooks. The top of the two lower hooks is hinged to a connecting rod, and the top of the connecting rod is rotatably connected to the outer wall of the hydraulic cylinder.

[0007] In the above scheme, each upper hook has a √-shaped structure, with its hook body located on the top outer side and its opening facing outwards. The bottoms of the two upper hooks are respectively rotatably connected to one end of the guide rod of the hydraulic cylinder via a first rotating shaft.

[0008] In the above scheme, the hook body of a single lower hook is located at the bottom with its opening facing downwards. The two intersecting lower hooks are hinged and rotated via a second pin, and the top of the connecting rod is rotatably connected to the outer wall of the hydraulic cylinder via a third pivot.

[0009] A dual-purpose hydraulic hook lock device includes an upper hook, a fixed plate, a hydraulic cylinder, and a lower hook, and also includes a fixed bracket, in which the fixed plate is installed. The fixed bracket has an A-shaped structure, with an installation cavity at the top to accommodate the fixed plate, first slots on both sides of the upper part of the fixed bracket to accommodate the extension of the upper hook, and a second slot in the middle of the bottom of the fixed bracket to accommodate the extension of the lower hook.

[0010] As a preferred embodiment, the fixed bracket has upper hinge seats symmetrically installed on both sides of its top, and lower hinge seats symmetrically installed on both sides of its bottom. A base is installed at the bottom of the fixed bracket, with insert plates on both sides of the base, and a stiffening plate connecting the two side plates is provided in the middle of the fixed bracket.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This dual-purpose hydraulic hook-lock device can stably lock the working end of the paddy field leveling mixer whether it is in the horizontal pushing direction or during longitudinal obstacle avoidance on the road, ensuring its stability in different working states and preventing tilting. Furthermore, the hydraulic cylinder control allows the working end of the paddy field leveling mixer to be vertically folded from the middle, ensuring road passability and transportation safety, fundamentally solving the problem of excessive width in the transport and mounting of agricultural machinery. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0013] Figure 1 This is a schematic diagram of the structure of the present invention in its open state;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention in the locked state;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention in another embodiment;

[0016] Figure 4 This is a schematic diagram of the present invention when it is deployed horizontally.

[0017] Figure 5 This is a schematic diagram of the present invention when it is applied in a longitudinal folding manner.

[0018] The following numbers are used in the diagram: 1-Upper hook; 11-First pin; 12-First rotating shaft; 2-Fixing plate; 3-Hydraulic cylinder; 31-Guide rod; 4-Lower hook; 41-Connecting rod; 42-Second pin; 43-Third rotating shaft; 5-Push plate; 6-Fixing bracket; 61-Upper hinge seat; 62-Mounting cavity; 63-Rib plate; 64-Base; 65-Insertion plate; 66-Lower hinge seat. Detailed Implementation

[0019] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model, and therefore only show the relevant components of this utility model.

[0020] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] Example 1, such as Figure 1 and Figure 2 As shown, a dual-purpose hydraulic hook lock device includes an upper hook 1, a fixed plate 2, a hydraulic cylinder 3, and a lower hook 4. The upper hook 1 is provided in two parts and is rotatably connected to both sides of the fixed plate 2 by a first pin 11. The two upper hooks 1 are used for positioning when the working end of the paddy field leveling mixer is folded into a vertical direction.

[0023] The single upper hook 1 has a √-shaped structure, with its hook body located on the top outer side and the opening of the upper hook 1 facing outward. At the bend of the upper hook 1, it is rotatably hinged to the fixing plate 2 through the first pin 11. The working ends of the paddy field leveling mixer are locked by the hook bodies through the upper hook 1 with both sides facing outward, thereby achieving stable positioning.

[0024] The bottoms of the two upper hooks 1 are rotatably connected to the fixed end of the hydraulic cylinder 3. Specifically, the bottoms of the two upper hooks 1 are rotatably connected to one end of the guide rod 31 of the hydraulic cylinder 3 through the first rotating shaft 12. The fixed end of the hydraulic cylinder 3 is fixed to the guide rod 31 by screws.

[0025] The working end of the hydraulic cylinder 3 is connected to a push plate 5. When the extension rod of the hydraulic cylinder 3 is working, it drives the push plate 5 to move up and down. The middle of both sides of the push plate 5 is rotatably connected to two crossed lower hooks 4. The top of each of the two lower hooks 4 is hinged to a connecting rod 41, and the top of the connecting rod 41 is rotatably connected to the outer wall of the hydraulic cylinder 3. When the extension rod of the hydraulic cylinder 3 is working, it ultimately drives the two crossed lower hooks 4 to perform a shearing action, thereby locking or releasing the working end of the paddy field leveling mixer in the horizontal direction.

[0026] The hook 4 is located at the bottom with its opening facing downwards, and is used to lock the connection at the working end of the paddy field leveling mixer. The two intersecting hooks 4 are hinged and rotated through the second pin 42. The top of the connecting rod 41 is rotatably connected to the outer wall of the hydraulic cylinder 3 through the third rotating shaft 43. Thus, under the drive of the telescopic shaft of the hydraulic cylinder 3, the bottom of the connecting rod 41 and the two intersecting hooks 4 rotate, and are forced to extend and retract by the telescopic shaft of the hydraulic cylinder 3, which constitutes the locking and unlocking action of the two hooks.

[0027] Based on the above scheme, with the extension action of the hydraulic cylinder 3, the two upper hooks 1 on the left and right lock the working end of the paddy field leveling mixer in the vertical direction when the two lower hooks 4 at the bottom are released. When the hydraulic cylinder 3 retracts, the two lower hooks 4 at the bottom are locked, locking the working end of the paddy field leveling mixer in the horizontal direction, and the two upper hooks 1 are in the released state. Therefore, the locking and releasing of the two types of hooks can be realized by the action of the hydraulic cylinder 3 to cope with the different conveying states of the working end of the paddy field leveling mixer.

[0028] This dual-purpose hydraulic hook locking device can stably lock the working end of the paddy field leveling mixer whether it is in the horizontal pushing direction or in the longitudinal obstacle avoidance process on the road, so that it is more stable in different working states and avoids the problem of the working end tilting.

[0029] Example 2, as Figure 3 As shown, a dual-purpose hydraulic hook lock device includes an upper hook 1, a fixing plate 2, a hydraulic cylinder 3, and a lower hook 4, as well as a fixing bracket 6. The device can be fixed on the fixing bracket 6 and then installed on the working end of the paddy field leveling mixer, making its positioning more accurate.

[0030] The fixing plate 2 is welded and installed in the fixing bracket 6. The fixing bracket 6 has an A-shaped structure, with a mounting cavity 62 on its upper part to accommodate the fixing plate 2. The fixing plate 2 is welded to the mounting cavity 62 around its perimeter. The upper two sides of the fixing bracket 6 have first slots to accommodate the extension of the upper hook 1. The space in the first slots is sufficient for the upper hook 1 to move in the locked and unlocked states. The bottom center of the fixing bracket 6 has a second slot to accommodate the extension of the lower hook 4. The space in the second slot is sufficient for the lower hook 4 to move in the locked and unlocked states.

[0031] The top two sides of the fixed bracket 6 are symmetrically equipped with upper hinge seats 61 for connecting the hydraulic cylinder to the top outer side of the working end of the paddy field leveling mixer. The bottom two sides of the fixed bracket 6 are symmetrically equipped with lower hinge seats 66 for connecting the hydraulic cylinder to the top inner side of the working end of the paddy field leveling mixer. The bottom of the fixed bracket 6 is equipped with a base 64, and the bottom of the base 64 is provided with insert plates 65 on both sides, which can be directly fixed to the working end of the paddy field leveling mixer with screws. This is mainly for further positioning during operation in the paddy field to prevent shaking during operation.

[0032] In addition, a stiffening plate 63 is provided in the middle of the fixed bracket 6 to connect the two side plates, which is used to strengthen the fixed bracket 6 of the A-shaped structure and make it more stable to fix the dual-purpose hydraulic hook lock device.

[0033] Please refer to the following when implementing: Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the present invention when it is deployed horizontally. The upper hinge seat 61 is connected to the outer side of the top of the working end of the paddy field leveling mixer for support, so that the entire working end is horizontal and the lower hook 4 is in a locked state. Figure 5 This is a schematic diagram of the present invention in a longitudinal folding application. The lower hinge seat 66 is connected to the inner side of the top of the working end of the paddy field leveling mixer for support, so that the entire working end is horizontal and the upper hook 1 is in a locked state.

[0034] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dual-purpose hydraulic hook lock device, characterized in that: The device includes an upper hook (1), a fixed plate (2), a hydraulic cylinder (3), and a lower hook (4). The upper hook (1) has two parts and is rotatably connected to both sides of the fixed plate (2) by a first pin (11). The bottom of the two upper hooks (1) is rotatably connected to the fixed end of the hydraulic cylinder (3). The working end of the hydraulic cylinder (3) is connected to a push plate (5). The middle of both sides of the push plate (5) is rotatably connected to two intersecting lower hooks (4). The top of the two lower hooks (4) is hinged to a connecting rod (41). The top of the connecting rod (41) is rotatably connected to the outer wall of the hydraulic cylinder (3).

2. The dual-purpose hydraulic hook lock device according to claim 1, characterized in that: The single upper hook (1) has a √-shaped structure, with its hook body located on the top outer side and its opening facing outward.

3. The dual-purpose hydraulic hook lock device according to claim 2, characterized in that: The bottoms of the two upper hooks (1) are rotatably connected to one end of the guide rod (31) of the hydraulic cylinder (3) via the first rotating shaft (12).

4. The dual-purpose hydraulic hook lock device according to claim 1, characterized in that: Two intersecting hooks (4) are hinged and rotated via a second pin (42), and the top of the connecting rod (41) is rotatably connected to the outer wall of the hydraulic cylinder (3) via a third pivot (43).

5. The dual-purpose hydraulic hook lock device according to claim 1, characterized in that: The hook body of the single lower hook (4) is located at the bottom with its opening facing downwards.

6. The dual-purpose hydraulic hook lock device according to claim 1, characterized in that: It also includes a fixing bracket (6), in which the fixing plate (2) is installed.

7. A dual-purpose hydraulic hook lock device according to claim 6, characterized in that: The fixed bracket (6) has an A-shaped structure, with an installation cavity (62) on the upper part to accommodate the fixed plate (2), and first slots on both sides of the upper part of the fixed bracket (6) to accommodate the extension of the upper hook (1), and a second slot in the middle of the bottom of the fixed bracket (6) to accommodate the extension of the lower hook (4).

8. A dual-purpose hydraulic hook lock device according to claim 7, characterized in that: The top two sides of the fixed bracket (6) are symmetrically equipped with upper hinge seats (61), and the bottom two sides of the fixed bracket (6) are symmetrically equipped with lower hinge seats (66).

9. A dual-purpose hydraulic hook lock device according to claim 7, characterized in that: The bottom of the fixed bracket (6) is equipped with a base (64), and the bottom of both sides of the base (64) is provided with insert plates (65). The middle part of the fixed bracket (6) is provided with a stiffening plate (63) connecting the two side plates.

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