Grass winding prevention rotary blade

Abstract

The utility model relates to the technical field of agricultural equipment, in particular to a grass twining prevention rotary blade which comprises an installation disc, a rotary blade and a grass twining prevention cutter, the grass twining prevention cutter is installed on an installation handle, the installation handle is connected with the installation disc, and a plurality of limiting holes are formed in the two side walls of the installation disc; the protection box is connected with a rotating mechanism; the device has the beneficial effects that a rotating mechanism is rotated, a screw rod rotates along a threaded hole formed in a connecting plate, a limiting rod slides along a sliding groove, a mounting handle can be rotated by enabling the limiting rod to slide out of a limiting hole, the angle between a grass winding prevention cutter and the side wall of a mounting disc can be changed, and the threaded connection position of the screw rod and the connecting plate is protected by arranging a protection box; the situation that impurities such as soil are attached to the threaded connection position in the working process of the device and consequently normal use of the device is affected is avoided, through mutual cooperation of the structures, the device cannot be affected by the impurities such as the soil in the adjusting process, the structure is more stable, the phenomenon that the grass winding prevention cutter falls off is avoided, and reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural equipment field, concretely is a kind of anti-entanglement grass rotary tiller. BACKGROUND

[0002] When rotary tiller works, rotary tiller rotates with high speed along with blade shaft, and it cuts soil, weeds and stubble by sharp blade, so as to achieve the purpose of loosening soil and leveling land, and create good conditions for seeding or planting.

[0003] In the prior art, the utility model discloses an anti-entanglement grass rotary tiller including a fixed disc and a rotating shaft hole arranged at the center of the fixed disc, the outer wall of the fixed disc is sleeved with a mounting disc, four mounting lugs are arranged on the side wall of the mounting disc, four first bolts are arranged on the four mounting lugs, four rotary tiller blades are correspondingly screwed on the four mounting lugs, and the mounting disc is provided with four second bolts on both side walls, and an anti-entanglement grass knife is threadedly arranged on each second bolt.

[0004] However, when adjusting the position of the anti-entanglement grass knife on the device, it is necessary to repeatedly tighten and loosen the second bolts to rotate the anti-entanglement grass knife for angle adjustment, and the threads and threaded parts on the second bolts are easy to attach dirt and other impurities during the process, which makes it difficult to rotate the second bolts, and the anti-entanglement grass knife and the mounting disc are unreliable in screwing, the second bolts are easy to loosen during device operation, which leads to the falling of the anti-entanglement grass knife, and the reliability is low, and the adjustment process is easy to be affected by dirt and other impurities. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an anti-entanglement grass rotary tiller to solve the problems in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an anti-entanglement grass rotary tiller, comprising: a mounting disc, a rotary tiller blade and an anti-entanglement grass knife, the anti-entanglement grass knife is installed on a mounting handle, the mounting handle is connected with the mounting disc, and a plurality of limiting holes are formed in the two side walls of the mounting disc.

[0007] The protective box is connected with a rotating mechanism, the rotating mechanism is connected with a screw rod, the screw rod is connected with a connecting plate, and a limiting rod is arranged on the bottom surface of the connecting plate.

[0008] Preferably, the connecting plate is in a "concave" plate structure, the threaded hole formed in the connecting plate is threadedly connected with the screw rod, the other end of the screw rod is fixedly connected with one end of the rotating mechanism, and the rotating mechanism is rotatably connected with the protective box.

[0009] Preferably, the mounting handle is rotatably connected with the mounting disc, a plurality of connecting grooves are formed in the two side walls of the mounting disc, the connecting grooves are in a fan ring groove structure, a connecting rod is arranged in the connecting grooves, the two ends of the connecting rod are fixedly connected with the mounting handle, the connecting rod is in a cylindrical structure, and the connecting rod can slide along the connecting grooves.

[0010] Preferably, the anti-grass entangling blade is fixedly connected with a fixed block, the fixed block is in a square plate structure, the fixed block is threadedly connected with the mounting handle through a fixed bolt, the mounting handle is fixedly connected with an indicating rod and a protective plate, the mounting handle is fixedly connected with the protective box, and the protective box is in a square box structure.

[0011] Preferably, the rotary tillage blade is fixedly installed on the mounting disc through bolts, a plurality of indicating holes and limiting holes are formed in the mounting disc, and the limiting holes are in a circular groove structure.

[0012] Preferably, the bottom surface of the connecting plate is fixedly connected with a limiting rod, the limiting rod is in a circular rod structure, the limiting rod can slide along the sliding groove formed in the mounting handle and slide into the limiting hole formed in the mounting disc, and the sliding groove is in a circular groove structure.

[0013] Compared with the prior art, the anti-grass entangling rotary tillage device has the following beneficial effects:

[0014] The anti-grass entangling rotary tillage device provided by the utility model rotates the rotating mechanism, rotates the screw rod along the threaded hole formed in the connecting plate, makes the limiting rod slide along the sliding groove, rotates the mounting handle by making the limiting rod slide out of the limiting hole, changes the angle between the anti-grass entangling blade and the side wall of the mounting disc, makes the limiting rod slide into the limiting hole, locks the mounting handle on the mounting disc, fixes the position of the anti-grass entangling blade, protects the screw joint of the screw rod and the connecting plate through the protective box, avoids that the device is affected by the normal use of the device in the working process of the device, and avoids that the device is affected by the mud and other impurities in the adjusting process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a device structure schematic view of the utility model;

[0016] Figure 2 It is Figure 1 It is an enlarged structure schematic view of A in the middle;

[0017] Figure 3 It is a device local structure schematic view of the utility model;

[0018] Figure 4 For Figure 3 Enlarged structural schematic view at B;

[0019] Figure 5 For the partial structure of the device of the utility model sectional view schematic diagram;

[0020] Figure 6 For Figure 5 Enlarged structural schematic view at C.

[0021] In the figure: 1, mounting disc; 2, rotary blade; 3, mounting handle; 4, anti-winding grass knife; 5, protective plate; 6, indicating rod; 7, indicating hole; 8, limiting hole; 9, connecting groove; 10, connecting rod; 11, protective box; 12, rotating mechanism; 13, screw; 14, connecting plate; 15, limiting rod; 16, sliding groove; 17, fixed block; 18, fixing bolt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme of the utility model to carry out clearly, completely describe, and the advantage is more clear and clear, following combining the drawing to the embodiment of the utility model further detailed description.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, only to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor, belong to the scope of the protection of the utility model.

[0023] Example one

[0024] Please refer to Figures 1-6 The utility model provides a technical scheme: an anti-winding grass rotary blade, it includes: mounting disc 1, rotary blade 2 and anti-winding grass knife 4, the anti-winding grass knife 4 is installed on mounting handle 3, and mounting handle 3 is connected with mounting disc 1, and the both sides wall of mounting disc 1 is provided with a plurality of limiting holes 8;Protective box 11 is connected with rotating mechanism 12 on protective box 11, and rotating mechanism 12 is connected with screw 13, and screw 13 is connected with connecting plate 14, and the bottom surface of connecting plate 14 is provided with limiting rod 15, and one end of limiting rod 15 is arranged in sliding groove 16;

[0025] When being used, personnel makes screw 13 rotate along the thread hole set up on connecting plate 14 by rotating rotating mechanism 12, and connecting plate 14 slides down along the inner chamber of protective box 11, and limiting rod 15 slides along sliding groove 16, and limiting rod 15 slides into limiting hole 8, so that mounting handle 3 can be locked on mounting disc 1, and the position of anti-winding grass knife 4 is fixed.

[0026] Example two

[0027] In order to improve the reliability of the device on the basis of embodiment one, the connecting plate 14 is provided, the connecting plate 14 is in the shape of a "concave" plate structure, the threaded hole opened on the connecting plate 14 is in threaded connection with the screw rod 13, the other end of the screw rod 13 is fixedly connected with one end of the rotating mechanism 12, the rotating mechanism 12 is rotatably connected with the protective box 11, by rotating the rotating mechanism 12, the screw rod 13 is rotated along the threaded hole opened on the connecting plate 14;

[0028] The bottom surface of the connecting plate 14 is fixedly connected with the limiting rod 15, the limiting rod 15 is in the shape of a circular rod structure, the limiting rod 15 can slide along the sliding groove 16 opened on the mounting handle 3 and slide into the limiting hole 8 opened on the mounting disc 1, the sliding groove 16 is in the shape of a circular groove structure, the connecting plate 14 is just arranged in the protective box 11, the connecting plate 14 is in contact with the inner wall of the protective box 11, the connecting plate 14 can slide up and down along the inner cavity of the protective box 11, by sliding the connecting plate 14 upward along the inner cavity of the protective box 11, the limiting rod 15 is slid along the sliding groove 16, the limiting rod 15 slides out of the limiting hole 8, the personnel can rotate the mounting handle 3 to change the angle between the grass cutting knife 4 and the side wall of the mounting disc 1;

[0029] The mounting handle 3 is rotatably connected with the mounting disc 1, the two side walls of the mounting disc 1 are provided with a plurality of connecting grooves 9, the connecting grooves 9 are in the shape of a fan ring groove structure, the connecting rod 10 is arranged in the connecting groove 9, the two ends of the connecting rod 10 are fixedly connected with the mounting handle 3, the connecting rod 10 is in the shape of a cylindrical structure, the connecting rod 10 can just slide along the connecting groove 9, by sliding the connecting rod 10 along the connecting groove 9 during the rotation of the mounting handle 3, the two grass cutting knives 4 can be synchronously rotated, which is convenient for the personnel to use, in combination with the above structure, the device will not be affected by the dirt and other impurities during the adjustment process, the structure is more stable to avoid the phenomenon that the grass cutting knife 4 falls off.

[0030] Embodiment three

[0031] On the basis of embodiment two, in order to improve the use effect of the device, the anti-winding grass knife 4 is provided, the anti-winding grass knife 4 is fixedly connected with the fixed block 17, the fixed block 17 is square plate structure, the fixed block 17 is screwed with the mounting handle 3 through the fixed bolt 18, the mounting handle 3 is fixedly connected with the indicating rod 6 and the protective plate 5, the mounting handle 3 is fixedly connected with the protective box 11, the protective box 11 is square box structure, the anti-winding grass knife 4 can be fixedly installed on the mounting handle 3 by screwing the fixed bolt 18 through the hole formed in the fixed block 17 with the threaded hole formed in the mounting handle 3, cooperate with the anti-winding grass knife 4 to prevent the rotary tillage blade 2 fixedly installed on the mounting disc 1 from winding grass, and the indicating rod 6 is a combination of a square plate and a semicircular plate, and the diameter of the semicircular plate on the combination is equal to the diameter of the indicating hole 7, when the indicating rod 6 completely covers one indicating hole 7, the limiting rod 15 can be aligned with one limiting hole 8 for positioning, which is convenient for personnel to use, the protective plate 5 is fan ring plate structure, the protective plate 5 is fixedly connected with the mounting handle 3, the protective plate 5 contacts with the mounting disc 1, the limiting hole 8 and the connecting groove 9 can be shielded by the protective plate 5, so as to avoid impurities entering the limiting hole 8 and the connecting groove 9 to affect the use of the device and improve the use effect of the device.

[0032] The rotary tillage blade 2 is fixedly installed on the mounting disc 1 by a bolt, a plurality of indicating holes 7 and limiting holes 8 are formed in the mounting disc 1, the limiting hole 8 is circular groove structure, the indicating hole 7 is circular hole structure, the indicating hole 7 and the indicating rod 6 are provided to facilitate personnel positioning operation and use.

[0033] In actual use, the rotating mechanism 12 is rotated, the screw rod 13 is rotated along the threaded hole formed in the connecting plate 14, the limiting rod 15 is slid along the sliding groove 16, the limiting rod 15 is slid out of the limiting hole 8, the mounting handle 3 can be rotated, the angle between the anti-winding grass knife 4 and the side wall of the mounting disc 1 is changed, the limiting rod 15 is slid into the limiting hole 8, the mounting handle 3 can be locked on the mounting disc 1, the position of the anti-winding grass knife 4 is fixed, the screw rod 13 and the connecting plate 14 are screwed, the protective box 11 is provided to protect the screw joint, so as to avoid that the impurities such as soil adhere to the screw joint during the operation of the device and affect the normal use of the device, the above structure is cooperated, so that the device is not affected by the impurities such as soil during the adjustment process, the structure is more stable, and the phenomenon that the anti-winding grass knife 4 falls off is avoided.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary tiller blade for preventing weed tangling, comprising: The mounting disc (1), rotary tiller blade (2) and anti-tangle grass knife (4) are characterized in that: the anti-tangle grass knife (4) is mounted on the mounting handle (3), the mounting handle (3) is connected to the mounting disc (1), and several limiting holes (8) are opened on both sides of the mounting disc (1). The protective box (11) is connected to a rotating mechanism (12), which is connected to a screw (13). The screw (13) is connected to a connecting plate (14). A limit rod (15) is provided on the bottom surface of the connecting plate (14), and one end of the limit rod (15) is located in the slide groove (16).

2. The anti-weed rotary tiller blade according to claim 1, characterized in that: The connecting plate (14) has a U-shaped plate structure. The threaded hole on the connecting plate (14) is threadedly connected to the screw (13). The other end of the screw (13) is fixedly connected to one end of the rotating mechanism (12). The rotating mechanism (12) is rotatably connected to the protective box (11).

3. The anti-weed rotary tiller blade according to claim 1, characterized in that: The mounting handle (3) is rotatably connected to the mounting plate (1). Several connecting grooves (9) are provided on both sides of the mounting plate (1). The connecting grooves (9) are fan-shaped grooves. A connecting rod (10) is provided in the connecting groove (9). Both ends of the connecting rod (10) are fixedly connected to the mounting handle (3). The connecting rod (10) is cylindrical. The connecting rod (10) can slide along the connecting groove (9).

4. The anti-weed rotary tiller blade according to claim 1, characterized in that: The anti-tangle grass knife (4) is fixedly connected to a fixing block (17), which is a square plate structure. The fixing block (17) is threadedly connected to the mounting handle (3) by fixing bolts (18). The mounting handle (3) is fixedly connected to an indicator rod (6) and a protective plate (5). The mounting handle (3) is fixedly connected to a protective box (11), which is a square box structure.

5. The anti-weed rotary tiller blade according to claim 1, characterized in that: The rotary tillage blade (2) is fixedly mounted on the mounting plate (1) by bolts. The mounting plate (1) has several indicator holes (7) and limiting holes (8). The limiting holes (8) are circular groove structures.

6. The anti-weed rotary tiller blade according to claim 1, characterized in that: The bottom surface of the connecting plate (14) is fixedly connected to a limiting rod (15). The limiting rod (15) has a circular rod-shaped structure. The limiting rod (15) can slide along the sliding groove (16) opened on the mounting handle (3) and slide into the limiting hole (8) opened on the mounting plate (1). The sliding groove (16) has a circular groove-shaped structure.

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