Mini-tiller dragging structure

Abstract

The utility model belongs to the technical field of agricultural planting, and particularly relates to a mini-tiller dragging structure which comprises an installation frame, an installation base and a clamping block, the clamping block is installed on an extension rod, the extension rod is installed on the installation frame in a sliding mode, a plurality of fixing grooves are formed in the side wall of the extension rod, and the clamping block is installed on the installation base. A fixing groove is formed in the mounting rack, a sealing plate is mounted on the fixing groove through a spring, a fixing plate matched with the fixing groove is mounted on the side wall of a groove, where the fixing plate is mounted, of the mounting rack through a spring, the top surface of the fixing plate is an inclined surface, and a top frame matched with the fixing plate is mounted on the mounting rack through a screw rod; by arranging the fixing plate located on the side wall of the groove where the extension rod is installed and the fixing groove where the sealing plate is installed through the spring, it is guaranteed that the hole where the extension rod is fixed and the groove where the extension rod is installed are not exposed to the outside, and a user can conveniently adjust the position of the extension rod; and the stability of the sealing plate in the using process of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural planting technology, specifically relating to a towing structure for a micro-tiller. Background Technology

[0002] Mini tillers are powered by small diesel or gasoline engines and are characterized by their light weight, small size, and simple structure. When using mini tillers, farmers fix them to vehicles such as small tractors via a towing mechanism. To improve the applicability of the towing mechanism, existing towing mechanisms include an adjustment mechanism to adjust the overall length of the towing mechanism. However, when adjusting the length of the towing mechanism, the slots for installing extension rods and the holes for fixing extension rods are exposed. During the operation of the mini tiller, soil accumulates inside the slots for installing extension rods and the holes for fixing extension rods, affecting the farmer's ability to adjust the position of the extension rods. Utility Model Content

[0003] This invention provides a towing structure for a micro-tiller to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a towing structure for a micro-tiller, comprising a mounting frame, mounting seats, and clamping blocks, and further comprising a spring telescopic rod and an extension rod. Two mounting seats are rotatably mounted on the U-shaped end of the mounting frame. A threaded rod is slidably mounted on the telescopic end of the spring telescopic rod, and a threaded ring is threadedly mounted on the threaded rod. The threaded ring is rotatably mounted on the telescopic end of the spring telescopic rod. A hinge seat is hinged to the main body of the spring telescopic rod and the threaded rod. The hinge seat on the threaded rod is mounted on the mounting frame. The extension rod is slidably mounted on the mounting frame, and the clamping block is mounted on the extension rod. Several fixing grooves are provided on the side wall of the extension rod, and a sealing plate is mounted on the fixing groove via a spring. The mounting frame has a mounting groove for mounting a fixing plate, and the fixing plate has a spring connected to the side wall of the mounting groove. The fixing plate cooperates with the fixing groove, and the top surface of the fixing plate is inclined. A top frame that cooperates with the fixing plate is mounted on the mounting frame via a screw.

[0005] Preferably, the side wall of the sealing plate is provided with a protrusion, and the side wall of the groove that mates with the protrusion on the side wall of the sealing plate is provided with a suction cup.

[0006] Preferably, the extension rod has graduations on its side wall.

[0007] Preferably, the bottom protrusion of the top frame is a slope that matches the sloped top surface of the fixing plate.

[0008] Preferably, the side wall of the fixing plate is provided with protrusions that cooperate with the two fixing grooves.

[0009] Preferably, the bottom surface of the extension rod is provided with a groove, and the opening of the groove for mounting the extension rod of the mounting bracket is provided with a protrusion that mates with the bottom groove of the extension rod.

[0010] Preferably, there is a certain distance between the end face of the bottom groove of the extension rod and the end face of the extension rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention ensures that the holes for fixing the extension rod and the groove for installing the extension rod are not exposed to the outside by setting a fixing plate on the side wall of the groove for installing the extension rod and a fixing groove for installing the sealing plate by a spring. This facilitates the user's adjustment of the position of the extension rod. The suction cup improves the stability of the sealing plate during use. The protrusion at the opening of the groove for installing the extension rod and the corresponding groove ensure the stability of the extension rod and the sealing of the groove for installing the extension rod. The hinge seat, threaded ring and threaded rod allow for adjustment of the buffering capacity of the spring telescopic rod, making the device suitable for soils of different hardness. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure at the joint between the spring telescopic rod and the threaded rod of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the extension rod mounting point in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the fixing groove in this utility model;

[0017] Figure 5 This is a schematic diagram of the suction cup mounting location in this utility model.

[0018] In the diagram: 1. Mounting bracket; 2. Mounting seat; 3. Spring telescopic rod; 31. Hinge seat; 32. Threaded ring; 33. Threaded rod; 4. Extension rod; 41. Top frame; 42. Fixing plate; 43. Fixing groove; 44. Sealing plate; 45. Suction cup; 5. Clamping block. Detailed Implementation

[0019] Please see Figure 1-5This utility model provides the following technical solution: a towing structure for a micro-tiller, including a mounting frame 1, mounting base 2, and clamping block 5, and also including a spring telescopic rod 3 and an extension rod 4. Two mounting bases 2 are rotatably mounted on the U-shaped end of the mounting frame 1. A threaded rod 33 is slidably mounted on the telescopic end of the spring telescopic rod 3. A threaded ring 32 is threadedly mounted on the threaded rod 33 and rotatably mounted on the telescopic end of the spring telescopic rod 3. A hinge seat 31 is hinged to the main body of the spring telescopic rod 3 and the threaded rod 33. A [missing information - likely a design feature] is provided on the threaded rod 33. The hinge seat 31 is mounted on the mounting frame 1. An extension rod 4 is slidably mounted on the mounting frame 1. A clamping block 5 is mounted on the extension rod 4. Several fixing grooves 43 are provided on the side wall of the extension rod 4. A sealing plate 44 is mounted on the fixing groove 43 by a spring. The mounting frame 1 is provided with a mounting groove for mounting a fixing plate 42. The fixing plate 42 is provided with a spring connected to the side wall of the mounting groove. The fixing plate 42 cooperates with the fixing groove 43. The top surface of the fixing plate 42 is sloping. A top frame 41 that cooperates with the fixing plate 42 is mounted on the mounting frame 1 by a screw.

[0020] Mounting base 2 and hinge base 31 are used to fix the device to the tiller. Fixing the device to the tiller via two mounting bases 2 and hinge base 31 ensures the stability of the connection between the device and the tiller. Clamping block 5 is used to fix the device to the towing component. Clamping block 5 and mounting base 2 are provided with several fixing holes for mounting bolts. Spring telescopic rod 3 acts as a buffer. Threaded ring 32 is threadedly mounted on threaded rod 33. When the user rotates threaded ring 32, it moves along threaded rod 33 under the action of the thread. Threaded rod 33 is slidably mounted on the telescopic end of spring telescopic rod 3. The groove between threaded rod 33 and the telescopic end of spring telescopic rod 3 serves as a limit, ensuring the proper functioning of spring telescopic rod 3 and threaded rod 3. The stability of the fit between the threaded ring 32 and the spring telescopic rod 3 is ensured by the threaded ring 32 rotating on the telescopic end of the spring telescopic rod 3, guaranteeing that the spring telescopic rod 3 will not detach from the threaded ring 32 during use. The threaded ring 32 moves along with the telescopic end of the spring telescopic rod 3, and the compression or release of the spring telescopic rod 3 by the threaded ring 32 adjusts the shock absorption strength of the spring telescopic rod 3. The adjustable shock absorption strength of the spring telescopic rod 3 allows the device to be used with soils of different hardness, improving its applicability. The spring telescopic rod 3 ensures that the tiller remains in contact with the ground during use, maintaining a consistent working depth and thus ensuring the tiller's working effect. The mounting base 2 is rotatably mounted on the mounting frame 1, and the threaded rod 33 and... The spring telescopic rod 3 is hinged to the hinge seat 31, ensuring the working effect of the spring telescopic rod 3. The extension rod 4 is slidably installed on the mounting frame 1. By adjusting the position of the extension rod 4, the overall length of the device can be adjusted, making the device suitable for different towing components and improving the applicability of the device. The top frame 41 is installed on the mounting frame 1 by a screw. When the user rotates the screw, the screw moves the top frame 41 under the action of the thread. The top surface of the fixing plate 42 is sloping. The sloping top surface of the fixing plate 42 ensures that the moving top frame 41 will push the fixing plate 42. The pushed fixing plate 42 enters the fixing groove 43. At this time, the extension rod 4 is fixed on the mounting frame 1 through the cooperation of the fixing plate 42 and the fixing groove 43, ensuring that the extension rod 4 is fixed in place. To ensure stability during use, the fixing plate 42 is slidably mounted on the side wall groove of the mounting bracket 1 for mounting the extension rod 4 via a spring. After the top frame 41 releases its pushing action on the fixing plate 42, the fixing plate 42 disengages from the fixing groove 43 under the action of the spring and enters the interior of the groove where the fixing plate 42 is mounted. This ensures that the user will not be obstructed when adjusting the position of the extension rod 4. The sealing plate 44 can seal the fixing groove 43. When the fixing groove 43 moves to the outside of the mounting bracket 1 driven by the extension rod 4, the sealing plate 44 can prevent external debris from entering the interior of the fixing groove 43. This prevents the fixing plate 42 from being obstructed during the process of entering the fixing groove 43 due to the accumulation of debris inside the fixing groove 43, thus affecting the fixing effect of the device on the extension rod 4.The spring installed on the fixing groove 43 serves to fix the sealing plate 44. When the sealing plate 44 is not subjected to external force, it is pressed against the opening of the fixing groove 43 by the spring. The sealing plate 44, held in place by the spring, ensures a sealing effect between the sealing plate 44 and the fixing groove 43. The side wall of the sealing plate 44 has protrusions, the shape of which ensures that the side walls of the sealing plate 44 and the extension rod 4 are flush, thus guaranteeing the working effect of the sealing plate 44.

[0021] Specifically, the side wall of the sealing plate 44 is provided with a protrusion, and the side wall of the groove 43 that cooperates with the protrusion on the side wall of the sealing plate 44 is provided with a suction cup 45.

[0022] The suction cup 45 can fix the sealing plate 44 at the opening of the fixing groove 43, which improves the stability of the sealing plate 44 during the use of the device and ensures the sealing effect of the sealing plate 44 on the fixing groove 43. The position of the suction cup 45 reduces the influence of the external environment on the suction cup 45 during the use of the device and ensures the working effect of the suction cup 45.

[0023] Specifically, the extension rod 4 has markings on its side wall.

[0024] The scale on the side wall of the extension rod 4 marks the position of the extension rod 4. By matching the edge of the mounting bracket 1 with the scale of the extension rod 4, the user can quickly move the extension rod 4 to the position that matches the fixing plate 42, thus improving the efficiency of the user in adjusting the position of the extension rod 4.

[0025] Specifically, the bottom protrusion of the top frame 41 is a slope that matches the top slope of the fixing plate 42.

[0026] The protruding shape at the bottom of the top frame 41 ensures that the bottom surface of the inclined surface of the top frame 41 and the top surface of the inclined surface of the fixed plate 42 fit together during the process of the top frame 41 pushing the fixed plate 42, thereby reducing the damage to the top frame 41 and the fixed plate 42 during the process of the fixed plate 42 being pushed.

[0027] Specifically, the side wall of the fixing plate 42 is provided with protrusions that cooperate with the two fixing grooves 43.

[0028] When the extension rod 4 is fixed by the cooperation of the fixing groove 43 and the fixing plate 42, four sets of cooperating fixing grooves 43 and protrusions simultaneously fix the extension rod 4, which improves the stability of the extension rod 4 during the use of the device.

[0029] Specifically, the bottom surface of the extension rod 4 is provided with a groove, and the opening of the groove of the mounting bracket 1 for mounting the extension rod 4 is provided with a protrusion that matches the bottom groove of the extension rod 4.

[0030] The fit between the groove on the bottom surface of the extension rod 4 and the protrusion on the side wall of the slot for mounting the extension rod 4 serves as a limiting mechanism, ensuring that the extension rod 4 will not detach from the slot of the mounting frame 1 during movement, thus ensuring the stability of the extension rod 4 during movement. The position of the protrusion that fits the groove on the side wall of the mounting frame 1 with the extension rod 4 prevents external debris from entering the slot of the mounting frame 1 for mounting the extension rod 4 during the use of the device.

[0031] Specifically, there is a certain distance between the end face of the groove on the bottom surface of the extension rod 4 and the end face of the extension rod 4.

[0032] The position of the end face of the groove on the bottom surface of the extension rod 4 ensures that when the user moves the extension rod 4 to its extreme position, a longer portion of the extension rod 4 remains inside the mounting bracket 1, thus ensuring the stability of the extension rod 4 after it is installed on the mounting bracket 1. The position of the side wall of the end face of the groove on the bottom surface of the extension rod 4 ensures that when the extension rod 4 is moved to its extreme position, the fixing plate 42 engages with the two furthest fixing slots 43 provided on the side wall of the extension rod 4, making it easy for the user to fix the extension rod 4.

[0033] The working principle and usage process of this utility model are as follows: The mounting base 2 and the hinge base 31 are installed on the micro-tiller using fixing bolts. The screw is rotated, and the screw, under the action of the thread, causes the top frame 41 to detach from the fixing plate 42. The fixing plate 42, under the action of the spring, detaches from the fixing groove 43, and the extension rod 4 is released from its fixation. The sealing plate 44, under the action of the spring, seals the fixing groove 43 and is fixed by the suction cup 45. When the extension rod 4 moves to the appropriate position, the screw is rotated in the opposite direction, and the lowered top frame 41 pushes the fixing plate 42. The pushed-up fixing plate 42 enters the fixing groove 43, and the extension rod 4 is fixed. The clamping block 5 is fixed on the towing component. The threaded ring 32 is rotated, and the threaded ring 32 moves along the threaded rod 33 under the action of the thread. As the threaded rod 33 moves, the extension end of the spring telescopic rod 3 begins to move, realizing the adjustment of the buffering capacity of the spring telescopic rod 3. When the micro-tiller is working, the micro-tiller always stays in contact with the ground under the action of the spring telescopic rod 3.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A towing structure for a micro-tiller, comprising a mounting frame (1), a mounting base (2), and a clamping block (5), characterized in that: It also includes a spring telescopic rod (3) and an extension rod (4). Two mounting seats (2) are rotatably mounted on the U-shaped end of the mounting frame (1). A threaded rod (33) is slidably mounted on the telescopic end of the spring telescopic rod (3). A threaded ring (32) is threadedly mounted on the threaded rod (33). The threaded ring (32) is rotatably mounted on the telescopic end of the spring telescopic rod (3). A hinge seat (31) is hinged to the main body of the spring telescopic rod (3) and the threaded rod (33). The hinge seat (31) on the threaded rod (33) is mounted on the mounting frame (1). The extension rod (4) is slidably installed, and the clamping block (5) is installed on the extension rod (4). Several fixing grooves (43) are provided on the side wall of the extension rod (4). A sealing plate (44) is installed on the fixing groove (43) by a spring. The mounting frame (1) is provided with a mounting groove for installing a fixing plate (42). The fixing plate (42) is provided with a spring connected to the side wall of the mounting groove. The fixing plate (42) cooperates with the fixing groove (43). The top surface of the fixing plate (42) is sloping. A top frame (41) that cooperates with the fixing plate (42) is installed on the mounting frame (1) by a screw.

2. The micro tiller towing structure according to claim 1, characterized in that: The side wall of the sealing plate (44) is provided with a protrusion, and the side wall of the groove that cooperates with the side wall protrusion of the sealing plate (44) is provided with a suction cup (45).

3. The micro tiller towing structure according to claim 1, characterized in that: The extension rod (4) has a scale on its side wall.

4. The towing structure for a micro-tiller according to claim 1, characterized in that: The bottom protrusion of the top frame (41) is a slope that matches the top slope of the fixing plate (42).

5. The micro tiller towing structure according to claim 1, characterized in that: The side wall of the fixing plate (42) is provided with protrusions that cooperate with the two fixing grooves (43).

6. The micro tiller towing structure according to claim 1, characterized in that: The extension rod (4) has a groove on its bottom surface, and the mounting bracket (1) has a protrusion at the opening of the groove for mounting the extension rod (4) that matches the groove on the bottom surface of the extension rod (4).

7. The towing structure for a micro-tiller according to claim 1, characterized in that: There is a certain distance between the end face of the bottom groove of the extension rod (4) and the end face of the extension rod (4).

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