Trailing joint for rotary cultivator

Abstract

The utility model discloses a trailer joint for a rotary cultivator, which belongs to the technical field of trailer joints and comprises a bottom plate, two mounting plates are connected to the top of the bottom plate, a same connecting frame is mounted on one sides of the two mounting plates, an adjusting mechanism is mounted in the connecting frame and comprises an adjusting groove and a travel groove, and the travel groove is communicated with the adjusting groove. Supporting grooves are formed in the two sides of the inner wall of the adjusting groove, supporting blocks are slidably connected into the two supporting grooves, the same adjusting block is connected between the two supporting blocks, a butt joint opening is formed in the adjusting block, and a fixing pin is slidably connected into the butt joint opening; according to the rotary cultivator, after the butt joint opening of the rotary cultivator is inserted into the connecting frame, the butt joint opening in the adjusting block and the butt joint opening of the rotary cultivator are aligned and moved by moving the adjusting block, and then the fixing pin is inserted, so that when the rotary cultivator is installed, the situation that the rotary cultivator needs to be moved for alignment due to inaccurate butt joint of the butt joint openings is avoided; and low installation efficiency is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of trailer joints, and particularly relates to a trailer joint for rotary tillers. Background Technology

[0002] A rotary tiller trailer hitch is a device used to connect a tractor and a rotary tiller. Its main function is to securely connect the rotary tiller to the tractor to ensure that both can work stably during tillage.

[0003] Chinese utility model application No. 202322356351.3 discloses a rotary tiller trailer joint, comprising: a rotary tiller housing and a trailer joint. The trailer joint is configured to be detachably connected to the rotary tiller housing. The trailer joint includes an installation part, a hooking part, and two symmetrically arranged extension arms. The first ends of the two extension arms are located in the middle of the installation part, and the second ends of the two extension arms are configured to be connected to the hooking part. The hooking part has a hooking through hole through which functional accessories can be detachably connected. However, in actual use, when docking the trailer, due to the small size of the docking hole, there will be a certain lateral deviation between the docking hole of the trailer and the docking hole of the connection, which requires moving the rotary tiller to align them, resulting in low installation efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of low installation efficiency caused by lateral deviation during docking of traditional rotary tillers, which makes it difficult to align the interface. Therefore, a tow joint for rotary tillers is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tow joint for a rotary tiller, comprising a base plate, two mounting plates connected to the top of the base plate, and a common connecting frame mounted on one side of the two mounting plates. An adjustment mechanism is installed inside the connecting frame, the adjustment mechanism comprising an adjustment groove and a stroke groove. Support grooves are provided on both sides of the inner wall of the adjustment groove, and support blocks are slidably connected in both support grooves. A common adjustment block is connected between the two support blocks. A mating interface is provided in the adjustment block, and a fixing pin is slidably connected in the mating interface.

[0006] As a further description of the above technical solution:

[0007] The adjustment groove is located at the top of the connecting frame, and the travel groove is located at the bottom of the inner wall of the connecting frame.

[0008] As a further description of the above technical solution:

[0009] The bottom of the fixing pin passes through the interface inside the adjusting block, and the bottom of the fixing pin is slidably connected to the bottom of the inner wall of the stroke groove.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the connecting frame is connected to two guide plates, which are located on both sides of the travel groove.

[0012] As a further description of the above technical solution:

[0013] The mounting plate has multiple mounting holes, and two connecting rods connect the two mounting plates.

[0014] As a further description of the above technical solution:

[0015] The connecting frame is equipped with a fixing device, which includes an embedding groove. The embedding groove is opened on one side of the inner wall of the connecting frame. A top plate is slidably connected in the embedding groove. A threaded rod is rotatably connected to one side of the top plate. A knob is connected to the other end of the threaded rod. The outer wall of the knob is provided with anti-slip rubber. A nut is embedded in one side of the inner wall of the embedding groove, and the inner wall of the nut is threadedly connected to the outer wall of the threaded rod.

[0016] As a further description of the above technical solution:

[0017] Two sliding sleeves are embedded on one side of the embedded groove, and sliding rods are slidably connected inside each of the two sliding sleeves. One end of each sliding rod is connected to one side of the top plate, and the two sliding rods are located on both sides of the threaded rod.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting an adjustment mechanism, after the rotary tiller's interface is inserted into the connecting frame, the adjustment block is moved to align the interface in the adjustment block with the rotary tiller's interface. Then, the fixing pin is inserted, thereby avoiding the need to move the rotary tiller for alignment due to inaccurate interface alignment during installation, thus avoiding low installation efficiency.

[0020] 2. In this utility model, by setting a fixing device, rotating the knob causes the threaded rod to rotate, which in turn causes the threaded rod to move inward through the nut on one side of the connecting frame. This causes the threaded rod to move the top plate to one side, causing the top plate to press against the docking block of the rotary tiller. This causes the mating interface inside the docking block of the rotary tiller to move the fixing pin, which in turn causes the fixing pin to move the adjusting block. This ensures that the adjusting block is tightly fitted to one side of the adjusting groove, preventing the adjusting block from moving in the adjusting groove during movement and causing instability in the rotary tiller. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a tow joint for a rotary tiller proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the adjustment mechanism of a trailer joint for a rotary tiller proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a trailer joint fixing device for a rotary tiller proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the guide plate structure of a tow joint for a rotary tiller proposed in this utility model.

[0025] Legend: 1. Mounting plate; 2. Connecting rod; 3. Base plate; 4. Connecting frame; 5. Guide plate; 6. Adjustment mechanism; 601. Adjusting block; 602. Support block; 603. Support groove; 604. Adjusting groove; 605. Stroke groove; 7. Fixing device; 701. Top plate; 702. Knob; 703. Threaded rod; 704. Slide rod; 705. Embedded groove; 8. Fixing pin. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 This utility model provides a technical solution: a trailer hitch for a rotary tiller, including a base plate 3. Two mounting plates 1 are connected to the top of the base plate 3, and a common connecting frame 4 is mounted on one side of each mounting plate 1. An adjustment mechanism 6 is installed inside the connecting frame 4. The adjustment mechanism 6 includes an adjustment groove 604 and a stroke groove 605. Support grooves 603 are provided on both sides of the inner wall of the adjustment groove 604, and support blocks 602 are slidably connected to both support grooves 603. A common adjustment block 601 is connected between the two support blocks 602. A mating interface is provided in block 601, and a fixing pin 8 is slidably connected in the mating interface. An adjustment groove 604 is provided on the top of the connecting frame 4, and a stroke groove 605 is provided on the bottom of the inner wall of the connecting frame 4. The bottom of the fixing pin 8 passes through the mating interface in the adjustment block 601, and the bottom of the fixing pin 8 is slidably connected to the bottom of the inner wall of the stroke groove 605. Two guide plates 5 are connected to the inner wall of the connecting frame 4, and the two guide plates 5 are located on both sides of the stroke groove 605. Multiple mounting holes are provided in the mounting plate 1, and two connecting rods 2 are connected between the two mounting plates 1.

[0028] In a specific implementation, by setting an adjustment mechanism 6, the mating interface of the rotary tiller docking block is moved into the connecting frame 4. The guide plate 5 guides the rotary tiller docking block, preventing longitudinal deviation between the mating interface of the rotary tiller docking block and the mating interface of the adjustment block 601, thereby improving the convenience and efficiency of installation. Then, by moving the adjustment block 601, the mating interface of the adjustment block 601 is aligned with the mating interface of the rotary tiller. Then, the fixing pin 8 is inserted, thus avoiding the need to move the rotary tiller for alignment due to misalignment of the interface during installation, thereby avoiding low installation efficiency. By setting the support block 602 to slide in the support groove 603, the adjustment block 601 is well supported, thereby improving the strength and stability of the adjustment block 601. By setting the connecting rod 2, the connecting rod 2 connects and reinforces the two mounting plates 1, improving the strength between the two mounting plates 1.

[0029] A fixing device 7 is installed inside the connecting frame 4. The fixing device 7 includes an embedding groove 705, which is opened on one side of the inner wall of the connecting frame 4. A top plate 701 is slidably connected inside the embedding groove 705. A threaded rod 703 is rotatably connected to one side of the top plate 701. A knob 702 is connected to the other end of the threaded rod 703. The outer wall of the knob 702 is provided with anti-slip rubber. A nut is embedded in one side of the inner wall of the embedding groove 705, and the inner wall of the nut is threadedly connected to the outer wall of the threaded rod 703. Two sliding sleeves are embedded in one side of the embedding groove 705, and sliding rods 704 are slidably connected in both sliding sleeves. One end of each sliding rod 704 is connected to one side of the top plate 701, and the two sliding rods 704 are located on both sides of the threaded rod 703.

[0030] In a specific implementation, by setting a fixing device 7, rotating the knob 702, and by providing anti-slip rubber on the outer wall of the knob 702, slippage is prevented from affecting operation when rotating the knob 702. Then, the knob 702 drives the threaded rod 703 to rotate, causing the threaded rod 703 to move inward through the nut on one side of the connecting frame 4. This causes the threaded rod 703 to drive the top plate 701 to move to one side. By setting a sliding rod 704, the top plate 701 moves with the sliding rod 704, and the sliding rod 704 provides support and limit, preventing the top plate 701 from shifting and affecting use. The movement of the top plate 701 compresses the docking block of the rotary tiller, causing the mating interface inside the rotary tiller's docking block to move the fixing pin 8. This causes the fixing pin 8 to move the adjusting block 601, making the adjusting block 601 tightly fit against one side of the adjusting groove 604, preventing the adjusting block 601 from shifting during movement, thus preventing the rotary tiller from running unstable due to stroke margin.

[0031] Working principle: During use, insert the rotary tiller's docking block into the connecting frame 4, and guide it with the guide plate 5 to prevent the docking interface within the docking block from shifting left or right. Then, move the adjusting block 601 to move the docking interface within the adjusting block 601, thereby aligning it with the docking interface within the rotary tiller's docking block. Then, insert the fixing pin 8 to fix it, avoiding the need to move the rotary tiller during alignment, which would reduce installation efficiency. Then, turn the knob 702, causing the knob 702 to drive the threaded rod 703 to rotate, which in turn causes the threaded rod 703 to move inward through the nut. This causes the threaded rod 703 to drive the top plate 701 to move inward, and the top plate 701 to press against the rotary tiller's docking block. This movement of the rotary tiller's docking block causes the docking interface within the rotary tiller's docking block to move, which in turn causes the fixing pin 8 to move. This causes the fixing pin 8 to make the adjusting block 601 fit tightly against one side of the adjusting groove 604, preventing the adjusting block 601 from moving within the adjusting groove 604 during movement, which would cause instability in the rotary tiller's operation.

[0032] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hitch for a rotary cultivator comprising a base plate (3), characterised in that, The bottom plate (3) top is connected with two mounting plates (1), and one side of two mounting plates (1) is provided with the same connecting frame (4), the connecting frame (4) is provided with adjusting mechanism (6), the adjusting mechanism (6) includes adjusting groove (604) and stroke groove (605), the inner wall of adjusting groove (604) is provided with support groove (603) on both sides, and the two support grooves (603) are slidably connected with support block (602), and the same adjusting block (601) is connected between the two support blocks (602), the adjusting block (601) is provided with a docking interface, and the fixed pin (8) is slidably connected in the docking interface.

2. The drawbar for a rotary cultivator according to claim 1, characterized in that The adjusting groove (604) is arranged at the top of the connecting frame (4), and the stroke groove (605) is arranged at the bottom of the inner wall of the connecting frame (4).

3. The drawbar for a rotary cultivator according to claim 1, characterized in that The fixed pin (8) penetrates the docking interface in the adjusting block (601), and the bottom of the fixed pin (8) is slidably connected with the bottom of the inner wall of the stroke groove (605).

4. The drawbar for a rotary cultivator according to claim 1, characterized in that The inner wall of the connecting frame (4) is connected with two guide plates (5), and the two guide plates (5) are respectively located on both sides of the stroke groove (605).

5. The drawbar for a rotary cultivator according to claim 1, characterized in that The mounting plate (1) is provided with a plurality of mounting holes, and two connecting rods (2) are connected between the two mounting plates (1).

6. The drawbar for a rotary cultivator according to claim 1, characterized in that The connecting frame (4) is provided with a fixing device (7), the fixing device (7) includes an embedded groove (705), the embedded groove (705) is arranged on one side of the inner wall of the connecting frame (4), the embedded groove (705) is slidably connected with the top plate (701), one side of the top plate (701) is rotatably connected with the threaded rod (703), the other end of the threaded rod (703) is connected with the knob (702), the outer wall of the knob (702) is provided with anti-skid rubber, one side of the inner wall of the embedded groove (705) is embedded with a nut, and the inner wall of the nut is threadedly connected with the outer wall of the threaded rod (703).

7. The drawbar for a rotary cultivator according to claim 6, characterized in that The embedded groove (705) is embedded with two sliding sleeves, and the two sliding sleeves are slidably connected with sliding rods (704), and the two sliding rods (704) are connected with one side of the top plate (701), and the two sliding rods (704) are respectively located on both sides of the threaded rod (703).

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