Soil preparation harrow

Abstract

The utility model discloses a soil preparation harrow which comprises an installation support, a plurality of connecting clamping heads are arranged at the front end and the rear end of the installation support, and the connecting clamping heads at the front end of the installation support and the clamping heads at the rear end of the installation support are arranged in a staggered mode. The rear ends of the connecting clamping heads are rotationally connected with downward pressing supports, and tension springs are arranged between the bottoms of the connecting clamping heads and the downward pressing supports. A pressing rod is arranged at the rear end of the downward pressing support, a rake rod is connected to the bottom end of the pressing rod, and a plurality of rake teeth are evenly arranged on the rake rod. The connecting clamping head is arranged, the downward pressing support is arranged at the front end of the connecting clamping head, the rake rod is arranged at the bottom of the downward pressing support, and the rake teeth are installed on the rake rod. A tension spring is arranged between the downward pressing support and the connecting clamping head, the rake teeth can be pressed on cultivated land through the pull ring, the cultivated land can be effectively tidied through the rake teeth, meanwhile, the rake teeth can be buffered through the tension spring, the rake teeth are prevented from being easily damaged when encountering hard objects, and the service life of the rake teeth can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of agricultural implements technology, specifically a tillage harrow. Background Technology

[0002] In agricultural production, land preparation is an indispensable step before sowing. Traditional land preparation tools, such as ordinary harrows, have many limitations. For example, they are poorly adaptable to different soil conditions. Furthermore, due to size limitations and poor interface compatibility, land preparation harrows are not easily connected to tillage vehicles.

[0003] In the prior art, Chinese Patent Publication No. CN218125307U discloses a tillage harrow for land preparation, including a transverse support. The outer surface of the transverse support is provided with a clamping structure. The outer surface of the transverse support is fixedly connected with harrow teeth and comb teeth respectively. Limiting baffles are fixedly connected to both ends of the transverse support. The lower outer surface of the transverse support is provided with a combing structure. The clamping structure includes a fixed support fixedly connected to the outer surface of the transverse support. A clamping support is movably provided on one side of the outer surface of the fixed support. A protruding column is fixedly connected to the outer surface of the clamping support. A rotating shaft is provided through the outer surface of the protruding column. A rotating column is fixedly connected to one end of the rotating shaft. A connecting thread is provided on one end of the rotating shaft.

[0004] The tillage harrow provided by the aforementioned patent has the advantage of easy connection with the tillage vehicle connector, making it convenient to install and use. However, the connection between the harrow teeth and the support frame of this tillage harrow is too rigid and lacks a buffer structure, which can easily cause damage to the harrow teeth when they come into contact with hard objects. Utility Model Content

[0005] The purpose of this utility model is to provide a tillage rake that improves the problem that the connection between the rake teeth and the support of the existing tillage rake is too rigid and lacks a buffer structure, which easily causes damage to the rake teeth when they come into contact with hard objects.

[0006] This utility model is implemented as follows:

[0007] A tillage rake includes a mounting bracket. The mounting bracket has multiple connecting clips at both its front and rear ends, with the front and rear connecting clips being staggered. Each connecting clip's rear end is rotatably connected to a pressing bracket, and a tension spring is provided between the bottom of the connecting clip and the pressing bracket. The pressing bracket's rear end has a pressure rod, the bottom end of which is connected to a rake rod with multiple evenly distributed rake teeth. The bottom of the pressing bracket is rotatably connected to a roller.

[0008] Preferably, the mounting bracket has a connector in the middle of the front section, and the connector has symmetrical pin holes on both sides of the front end; the connector has a connecting rod at the top, and the connecting rod has a pair of ear plates at the top of the front end, with a through hole in the middle of the ear plates. The ear plates are used to connect to the hydraulic cylinder at the rear of the tractor, so that the harrow can be pulled up when not in use.

[0009] Preferably, the rear end of the connecting clip is provided with a connecting plate, and the connecting plate and the connecting clip are connected by a plurality of first bolts; the front end of the connecting clip is provided with adapters on both sides, and the adapters are provided with adapter holes in the middle; the bottom surface of the connecting clip is provided with first hooks on both sides, and the first hooks are provided with first hook interfaces in the middle.

[0010] Preferably, the top of the pressure bracket is provided with a mounting joint, and the mounting joint has mounting shafts at both ends, which are rotatably connected to the adapter hole; the bottom of the pressure bracket has mounting holes at both ends, and the inner side of the pressure bracket is provided with a support rod, and the rear end of the support rod is provided with a second hook joint aligned with the position of the first hook joint, and the second hook joint is provided with a second hook interface; the middle of the pressure rod is provided with a branch rod, which is connected to the support rod, and the top of the pressure rod is provided with a connecting column, which is connected to the inner side of the top of the pressure bracket, and the bottom of the pressure rod is provided with an arc-shaped connecting rod.

[0011] Preferably, the roller is rotatably connected to a shaft at both ends, and the shaft end is provided with a mounting post. The mounting post passes through a mounting hole, and a pressure cap is provided at one end of the mounting post that passes through the mounting hole.

[0012] Preferably, a fixing plate is provided in the middle of the side of the rake bar, and a pressure plate is provided above the fixing plate. The pressure plate and the fixing plate are connected by a plurality of second bolts.

[0013] Preferably, it also includes a reinforcing rod, with end plates at both ends. The end plates are connected to positioning plates by a third bolt. The end plates and positioning plates are pressed against the mounting bracket to ensure that the reinforcing rod is stably connected to the mounting bracket.

[0014] Preferably, it also includes a mounting clip and an auxiliary wheel. The mounting clip is installed on both front ends of the mounting bracket, and the auxiliary wheel is plugged into and connected to the mounting clip. The auxiliary wheel is adjustable up and down relative to the mounting clip.

[0015] Preferably, the mounting head has a mounting plate at its rear end, the mounting plate and the mounting head are connected by a plurality of fourth bolts, and the mounting head has a sleeve at its front end, the sleeve has a sleeve hole in the middle, and the sleeve has a set screw on its side.

[0016] Preferably, the auxiliary wheel is provided with a connecting bracket, the connecting bracket has bearings at both ends, the bearings are rotatably connected to the auxiliary wheel, and the connecting bracket has a plug at the top, which is inserted into the inner side of the sleeve hole.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model features a connecting clip with a pressing bracket at the front end and a rake rod at the bottom, on which multiple rake teeth are mounted. A tension spring is provided between the pressing bracket and the connecting clip, allowing the rake teeth to press against the tilled land. This enables the rake teeth to effectively prepare the land, while the tension spring provides cushioning to prevent damage when the rake teeth encounter hard objects, thus extending their service life.

[0019] 2. By setting up reinforcing rods, this utility model can make the mounting bracket strong enough to ensure that the mounting bracket can stably support each component.

[0020] 3. This utility model can help the entire harrow move stably on the cultivated land by setting and installing a clamp and auxiliary wheels. The auxiliary wheels can be adjusted according to the height, which facilitates the flexible use of the harrow. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the mounting bracket of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the connecting clip of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the pressure bracket of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the roller of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the rake handle of this utility model;

[0027] Figure 7 This is a schematic diagram of the reinforcing rod of this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the mounting clip of this utility model;

[0029] Figure 9 This is a schematic diagram of the auxiliary wheel of this utility model.

[0030] In the diagram: 1. Mounting bracket; 11. Connector; 12. Pin hole; 13. Connecting rod; 14. Ear plate; 15. Through hole; 2. Connecting clip; 21. Connecting plate; 22. First bolt; 23. Adapter; 24. Adapter hole; 25. First hook connector; 26. First hook interface; 3. Lower pressure bracket; 30. Connecting column; 31. Mounting connector; 32. Mounting shaft; 33. Mounting hole; 34. Support rod; 35. Second hook connector; 36. Second hook interface; 37. Pressure rod; 38. 39. Arc-shaped connecting rod; 4. Branch rod; 5. Tension spring; 6. Roller; 7. Shaft; 8. Mounting column; 9. Pressure cap; 10. Rake rod; 11. Rake teeth; 12. Fixing plate; 13. Pressure plate; 14. Second bolt; 15. Reinforcing rod; 16. End plate; 17. Positioning plate; 18. Third bolt; 19. Mounting clip; 10. Mounting plate; 11. Fourth bolt; 12. Socket joint; 13. Set screw; 14. Sleeve hole; 15. Auxiliary wheel; 16. Connecting bracket; 17. Bearing; 18. Insert rod. Detailed Implementation

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0033] Example 1

[0034] like Figure 1 As shown, a tillage harrow includes a mounting bracket 1, which facilitates connection to a tractor, allowing the tractor to move the entire tillage harrow. The mounting bracket 1 has multiple connecting clips 2 at both its front and rear ends, with the front and rear clips staggered. Each connecting clip 2 has a rotatable lower support bracket 3 at its rear end, facilitating the installation and rotation of the lower support bracket 3. A tension spring 4 is located between the bottom of the connecting clip 2 and the lower support bracket 3. The lower support bracket 3 has a pressure rod 37 at its rear end, with a harrow rod 6 connected to its bottom end. The harrow rod 6 has multiple evenly spaced harrow teeth 61. A roller 5 is rotatably connected to the bottom of the lower support bracket 3, ensuring its rolling motion. The tension spring 4 applies a downward pulling force to the lower support bracket 3, allowing it to drive the harrow rod 6 and harrow teeth 61 to stably press against the tillage land, thus achieving the purpose of tillage treatment.

[0035] like Figure 2 As shown, the mounting bracket 1 has a connector 11 in the middle of its front section, and pin holes 12 are symmetrically provided on both sides of the front end of the connector 11. The connector 11 and the pin holes 12 facilitate the rotational connection between the mounting bracket 1 and the tractor. The top of the connector 11 has a connecting rod 13, and the top of the front end of the connecting rod 13 has a pair of ear plates 14. The ear plates 14 have a through hole 15 in the middle. The ear plates 14 are used to connect to the hydraulic cylinder at the rear of the tractor, so that the harrow can be pulled up when not in use.

[0036] like Figure 3 As shown, the rear end of the connecting clip 2 is provided with a connecting plate 21, and the connecting plate 21 and the connecting clip 2 are connected by multiple first bolts 22. This structure facilitates a stable connection between the connecting clip 2 and the mounting bracket 1, allowing for position adjustment and fixation of the connecting clip 2. Adapters 23 are symmetrically arranged on both sides of the front end of the connecting clip 2, and adapter holes 24 are provided in the middle of the adapters 23. The adapters 23 and adapter holes 24 facilitate rotational connection with the lower pressure bracket 3. First hook connectors 25 are symmetrically arranged on both sides of the bottom surface of the connecting clip 2, and first hook interfaces 26 are provided in the middle of the first hook connectors 25. The first hook connectors 25 and first hook interfaces 26 facilitate connection with the tension spring 4.

[0037] like Figure 4 As shown, the top of the pressure bracket 3 is provided with a mounting joint 31, and both ends of the mounting joint 31 are provided with mounting shafts 32, which are rotatably connected to the adapter hole 24. The mounting joint 31 and the mounting shaft 32 facilitate the rotatable connection between the pressure bracket 3 and the connecting clip 2. The bottom of the pressure bracket 3 is provided with mounting holes 33 at both ends, which facilitate the rotatable connection between the pressure bracket 3 and the roller 5. The inner side of the pressure bracket 3 is provided with a support rod 34, which ensures sufficient stability of the pressure bracket 3. The rear end of the support rod 34 is aligned with the first hook joint 25 and is provided with a second hook joint 35, which is provided with a second hook interface 36. The second hook joint 35 and the second hook interface 36 facilitate the connection with the bottom end of the tension spring 4. The middle of the pressure rod 37 is provided with a branch rod 39, which is connected to the support rod 34, ensuring sufficient stability of the pressure rod 37. The top of the pressure rod 37 is provided with a connecting column 30, which is connected to the inner side of the top of the lower pressure bracket 3. The bottom of the pressure rod 37 is provided with an arc-shaped connecting rod 38, which facilitates the connection between the pressure rod 37 and the rake rod 6.

[0038] like Figure 5 As shown, the roller 5 is rotatably connected to the two ends of the roller 5 via a rotating shaft 51, which allows the roller 5 to rotate smoothly. The end of the rotating shaft 51 is provided with a mounting post 52, which passes through a mounting hole 33. A pressure cap 53 is provided at one end of the mounting post 52 passing through the mounting hole 33. This structure ensures that the roller 5 is stably connected to the mounting bracket 1.

[0039] like Figure 6As shown, a fixing plate 62 is provided in the middle of the side of the rake rod 6, and a pressure plate 63 is provided above the fixing plate 62. The pressure plate 63 and the fixing plate 62 are connected by multiple second bolts 64. This structure facilitates the stable connection of the rake rod 6 through the pressure plate 63 and the fixing plate 62.

[0040] Example 2

[0041] like Figure 1 As shown, a tillage harrow includes a mounting bracket 1, which facilitates connection to a tractor, allowing the tractor to move the entire tillage harrow. The mounting bracket 1 has multiple connecting clips 2 at both its front and rear ends, with the front and rear clips staggered. Each connecting clip 2 has a rotatable lower support bracket 3 at its rear end, facilitating the installation and rotation of the lower support bracket 3. A tension spring 4 is located between the bottom of the connecting clip 2 and the lower support bracket 3. The lower support bracket 3 has a pressure rod 37 at its rear end, with a harrow rod 6 connected to its bottom end. The harrow rod 6 has multiple evenly spaced harrow teeth 61. A roller 5 is rotatably connected to the bottom of the lower support bracket 3, ensuring its rolling motion. The tension spring 4 applies a downward pulling force to the lower support bracket 3, allowing it to drive the harrow rod 6 and harrow teeth 61 to stably press against the tillage land, thus achieving the purpose of tillage treatment.

[0042] like Figure 2 As shown, the mounting bracket 1 has a connector 11 in the middle of its front section, and pin holes 12 are symmetrically provided on both sides of the front end of the connector 11. The connector 11 and the pin holes 12 facilitate the rotational connection between the mounting bracket 1 and the tractor. The top of the connector 11 has a connecting rod 13, and the top of the front end of the connecting rod 13 has a pair of ear plates 14. The ear plates 14 have a through hole 15 in the middle. The ear plates 14 are used to connect to the hydraulic cylinder at the rear of the tractor, so that the harrow can be pulled up when not in use.

[0043] like Figure 3 As shown, the rear end of the connecting clip 2 is provided with a connecting plate 21, and the connecting plate 21 and the connecting clip 2 are connected by multiple first bolts 22. This structure facilitates a stable connection between the connecting clip 2 and the mounting bracket 1, allowing for position adjustment and fixation of the connecting clip 2. Adapters 23 are symmetrically arranged on both sides of the front end of the connecting clip 2, and adapter holes 24 are provided in the middle of the adapters 23. The adapters 23 and adapter holes 24 facilitate rotational connection with the lower pressure bracket 3. First hook connectors 25 are symmetrically arranged on both sides of the bottom surface of the connecting clip 2, and first hook interfaces 26 are provided in the middle of the first hook connectors 25. The first hook connectors 25 and first hook interfaces 26 facilitate connection with the tension spring 4.

[0044] like Figure 4As shown, the top of the pressure bracket 3 is provided with a mounting joint 31, and both ends of the mounting joint 31 are provided with mounting shafts 32, which are rotatably connected to the adapter hole 24. The mounting joint 31 and the mounting shaft 32 facilitate the rotatable connection between the pressure bracket 3 and the connecting clip 2. The bottom of the pressure bracket 3 is provided with mounting holes 33 at both ends, which facilitate the rotatable connection between the pressure bracket 3 and the roller 5. The inner side of the pressure bracket 3 is provided with a support rod 34, which ensures sufficient stability of the pressure bracket 3. The rear end of the support rod 34 is aligned with the first hook joint 25 and is provided with a second hook joint 35, which is provided with a second hook interface 36. The second hook joint 35 and the second hook interface 36 facilitate the connection with the bottom end of the tension spring 4. The middle of the pressure rod 37 is provided with a branch rod 39, which is connected to the support rod 34, ensuring sufficient stability of the pressure rod 37. The top of the pressure rod 37 is provided with a connecting column 30, which is connected to the inner side of the top of the lower pressure bracket 3. The bottom of the pressure rod 37 is provided with an arc-shaped connecting rod 38, which facilitates the connection between the pressure rod 37 and the rake rod 6.

[0045] like Figure 5 As shown, the roller 5 is rotatably connected to the two ends of the roller 5 via a rotating shaft 51, which allows the roller 5 to rotate smoothly. The end of the rotating shaft 51 is provided with a mounting post 52, which passes through a mounting hole 33. A pressure cap 53 is provided at one end of the mounting post 52 passing through the mounting hole 33. This structure ensures that the roller 5 is stably connected to the mounting bracket 1.

[0046] like Figure 6 As shown, a fixing plate 62 is provided in the middle of the side of the rake rod 6, and a pressure plate 63 is provided above the fixing plate 62. The pressure plate 63 and the fixing plate 62 are connected by multiple second bolts 64. This structure facilitates the stable connection of the rake rod 6 through the pressure plate 63 and the fixing plate 62.

[0047] like Figure 1 and Figure 7 As shown, it also includes a reinforcing rod 7, with end plates 71 at both ends of the reinforcing rod 7. The end plates 71 are connected to positioning plates 72 by a third bolt 73. The end plates 71 and positioning plates 72 are pressed onto the mounting bracket 1 to ensure that the reinforcing rod 7 is stably connected to the mounting bracket 1. This structure ensures that the inner side of the mounting bracket 1 is supported by the reinforcing rod 7, which ensures the stability of the entire mounting bracket 1 during use.

[0048] Example 3

[0049] like Figure 1As shown, a tillage harrow includes a mounting bracket 1, which facilitates connection to a tractor, allowing the tractor to move the entire tillage harrow. The mounting bracket 1 has multiple connecting clips 2 at both its front and rear ends, with the front and rear clips staggered. Each connecting clip 2 has a rotatable lower support bracket 3 at its rear end, facilitating the installation and rotation of the lower support bracket 3. A tension spring 4 is located between the bottom of the connecting clip 2 and the lower support bracket 3. The lower support bracket 3 has a pressure rod 37 at its rear end, with a harrow rod 6 connected to its bottom end. The harrow rod 6 has multiple evenly spaced harrow teeth 61. A roller 5 is rotatably connected to the bottom of the lower support bracket 3, ensuring its rolling motion. The tension spring 4 applies a downward pulling force to the lower support bracket 3, allowing it to drive the harrow rod 6 and harrow teeth 61 to stably press against the tillage land, thus achieving the purpose of tillage treatment.

[0050] like Figure 2 As shown, the mounting bracket 1 has a connector 11 in the middle of its front section, and pin holes 12 are symmetrically provided on both sides of the front end of the connector 11. The connector 11 and the pin holes 12 facilitate the rotational connection between the mounting bracket 1 and the tractor. The top of the connector 11 has a connecting rod 13, and the top of the front end of the connecting rod 13 has a pair of ear plates 14. The ear plates 14 have a through hole 15 in the middle. The ear plates 14 are used to connect to the hydraulic cylinder at the rear of the tractor, so that the harrow can be pulled up when not in use.

[0051] like Figure 3 As shown, the rear end of the connecting clip 2 is provided with a connecting plate 21, and the connecting plate 21 and the connecting clip 2 are connected by multiple first bolts 22. This structure facilitates a stable connection between the connecting clip 2 and the mounting bracket 1, allowing for position adjustment and fixation of the connecting clip 2. Adapters 23 are symmetrically arranged on both sides of the front end of the connecting clip 2, and adapter holes 24 are provided in the middle of the adapters 23. The adapters 23 and adapter holes 24 facilitate rotational connection with the lower pressure bracket 3. First hook connectors 25 are symmetrically arranged on both sides of the bottom surface of the connecting clip 2, and first hook interfaces 26 are provided in the middle of the first hook connectors 25. The first hook connectors 25 and first hook interfaces 26 facilitate connection with the tension spring 4.

[0052] like Figure 4As shown, the top of the pressure bracket 3 is provided with a mounting joint 31, and both ends of the mounting joint 31 are provided with mounting shafts 32, which are rotatably connected to the adapter hole 24. The mounting joint 31 and the mounting shaft 32 facilitate the rotatable connection between the pressure bracket 3 and the connecting clip 2. The bottom of the pressure bracket 3 is provided with mounting holes 33 at both ends, which facilitate the rotatable connection between the pressure bracket 3 and the roller 5. The inner side of the pressure bracket 3 is provided with a support rod 34, which ensures sufficient stability of the pressure bracket 3. The rear end of the support rod 34 is aligned with the first hook joint 25 and is provided with a second hook joint 35, which is provided with a second hook interface 36. The second hook joint 35 and the second hook interface 36 facilitate the connection with the bottom end of the tension spring 4. The middle of the pressure rod 37 is provided with a branch rod 39, which is connected to the support rod 34, ensuring sufficient stability of the pressure rod 37. The top of the pressure rod 37 is provided with a connecting column 30, which is connected to the inner side of the top of the lower pressure bracket 3. The bottom of the pressure rod 37 is provided with an arc-shaped connecting rod 38, which facilitates the connection between the pressure rod 37 and the rake rod 6.

[0053] like Figure 5 As shown, the roller 5 is rotatably connected to the two ends of the roller 5 via a rotating shaft 51, which allows the roller 5 to rotate smoothly. The end of the rotating shaft 51 is provided with a mounting post 52, which passes through a mounting hole 33. A pressure cap 53 is provided at one end of the mounting post 52 passing through the mounting hole 33. This structure ensures that the roller 5 is stably connected to the mounting bracket 1.

[0054] like Figure 6 As shown, a fixing plate 62 is provided in the middle of the side of the rake rod 6, and a pressure plate 63 is provided above the fixing plate 62. The pressure plate 63 and the fixing plate 62 are connected by multiple second bolts 64. This structure facilitates the stable connection of the rake rod 6 through the pressure plate 63 and the fixing plate 62.

[0055] like Figure 1 and Figure 7 As shown, it also includes a reinforcing rod 7, with end plates 71 at both ends of the reinforcing rod 7. The end plates 71 are connected to positioning plates 72 by a third bolt 73. The end plates 71 and positioning plates 72 are pressed onto the mounting bracket 1 to ensure that the reinforcing rod 7 is stably connected to the mounting bracket 1. This structure ensures that the inner side of the mounting bracket 1 is supported by the reinforcing rod 7, which ensures the stability of the entire mounting bracket 1 during use.

[0056] like Figure 1 As shown, it also includes a mounting clip 8 and an auxiliary wheel 9. The mounting clip 8 is installed on both front ends of the mounting bracket 1, and the auxiliary wheel 9 is plugged into the mounting clip 8. The auxiliary wheel 9 can be adjusted up and down relative to the mounting clip 8. This structure facilitates the installation of the auxiliary wheel 9 and also facilitates the up and down adjustment of the auxiliary wheel 9.

[0057] like Figure 8As shown, the rear end of the mounting clip 8 is provided with a mounting plate 81. The mounting plate 81 and the mounting clip 8 are connected by multiple fourth bolts 82. This structure facilitates the stable installation of the mounting clip 8 on the mounting bracket 1. The front end of the mounting clip 8 is provided with a sleeve connector 83. The sleeve connector 83 has a sleeve hole 85 in the middle and a set screw 84 on its side. The sleeve connector 83 facilitates connection with the auxiliary wheel 9, allowing for easy adjustment and use of the auxiliary wheel 9. The set screw 84 facilitates fixing the height of the auxiliary wheel 9.

[0058] like Figure 9 As shown, the auxiliary wheel 9 is equipped with a connecting bracket 91, and bearings 92 are provided at both ends of the connecting bracket 91. The bearings 92 are rotatably connected to the auxiliary wheel 9 to facilitate the rotation of the auxiliary wheel 9. The top of the connecting bracket 91 is provided with a plug rod 93, which is inserted into the inner side of the sleeve hole 85 to facilitate the up and down adjustment of the auxiliary wheel 9.

[0059] Working principle: When in use, the mounting bracket 1 is installed at the rear end of the tractor according to the usage requirements, so that the connector 11 is rotatably connected to the tractor, and the hydraulic cylinder at the rear end of the tractor is connected to the top of the connecting rod 13; the hydraulic cylinder drives the entire harrow to press down, the harrow arm 6 and the harrow teeth 61 are pressed firmly on the ground, and the roller 5 and the auxiliary wheel 9 are also in contact with the surface of the tillage. Then, under the action of the tension spring 4, the harrow teeth 61 will press into the tillage, and the tillage is treated by dragging the tractor.

[0060] In summary, compared with the prior art, this application, by setting a connecting head 2, has a pressing bracket 3 at the front end of the connecting head 2, and a rake rod 6 at the bottom of the pressing bracket 3, with multiple rake teeth 61 installed on the rake rod 6; a tension spring 4 is provided between the pressing bracket 3 and the connecting head 2, which allows the rake teeth 61 to press on the cultivated land through the tension ring, so that the rake teeth 61 can effectively tidy up the cultivated land. At the same time, the tension spring 4 can buffer the rake teeth 61, preventing them from being easily damaged when they encounter hard objects, thus helping to improve the service life of the rake teeth 61.

[0061] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tillage rake, comprising a mounting bracket (1), characterized in that, The mounting bracket (1) is provided with multiple connecting clips (2) at both the front and rear ends, and the connecting clips (2) at the front end and the clips at the rear end of the mounting bracket (1) are staggered; the rear ends of the connecting clips (2) are rotatably connected to a pressing bracket (3), and a tension spring (4) is provided between the bottom of the connecting clips (2) and the pressing bracket (3); the rear end of the pressing bracket (3) is provided with a pressing rod (37), the bottom end of the pressing rod (37) is connected to a rake rod (6), the rake rod (6) is evenly provided with multiple rake teeth (61), and the bottom of the pressing bracket (3) is rotatably connected to a roller (5).

2. A tillage harrow according to claim 1, characterized in that, The mounting bracket (1) has a connector (11) in the middle of its front section. The connector (11) has pin holes (12) symmetrically arranged on both sides of its front end. The connector (11) has a connecting rod (13) at the top. The connecting rod (13) has a pair of ear plates (14) at the top of its front end. The ear plates (14) have a through hole (15) in the middle. The ear plates (14) are used to connect to the hydraulic cylinder at the rear of the tractor, so that the harrow can be pulled up when it is not in use.

3. A tillage harrow according to claim 1, characterized in that, The connecting head (2) has a connecting plate (21) at its rear end, and the connecting plate (21) and the connecting head (2) are connected by a plurality of first bolts (22); the connecting head (2) has symmetrical adapters (23) on both sides of its front end, and the adapters (23) have adapter holes (24) in the middle; the connecting head (2) has symmetrical first hooks (25) on both sides of its bottom surface, and the first hooks (25) have first hook interfaces (26) in the middle.

4. A tillage harrow according to claim 3, characterized in that, The top of the pressure bracket (3) is provided with an installation joint (31), and the two ends of the installation joint (31) are provided with installation shafts (32). The installation shafts (32) are rotatably connected to the adapter hole (24). The bottom two sections of the pressure bracket (3) are provided with installation holes (33), and the inner side of the pressure bracket (3) is provided with a support rod (34). The rear end of the support rod (34) is aligned with the position of the first hook joint (25) and is provided with a second hook joint (35). The second hook joint (35) is provided with a second hook interface (36). The middle part of the pressure rod (37) is provided with a branch rod (39). The branch rod (39) is connected to the support rod (34), and the top of the pressure rod (37) is provided with a connecting column (30). The connecting column (30) is connected to the inner side of the top of the pressure bracket (3). The bottom end of the pressure rod (37) is provided with an arc-shaped connecting rod (38).

5. A tillage harrow according to claim 4, characterized in that, The roller (5) is rotatably connected to a shaft (51) at both ends, and the shaft (51) is provided with a mounting post (52) at its end. The mounting post (52) passes through the mounting hole (33), and a pressure cap (53) is provided at one end of the mounting post (52) that passes through the mounting hole (33).

6. A tillage harrow according to claim 1, characterized in that, A fixing plate (62) is provided in the middle of the side of the rake (6), and a pressure plate (63) is provided above the fixing plate (62). The pressure plate (63) and the fixing plate (62) are connected by a plurality of second bolts (64).

7. A tillage harrow according to any one of claims 1-6, characterized in that, It also includes a reinforcing rod (7), with end plates (71) at both ends. The end plates (71) are connected to positioning plates (72) by a third bolt (73). The end plates (71) and positioning plates (72) are pressed onto the mounting bracket (1) to ensure that the reinforcing rod (7) is stably connected to the mounting bracket (1).

8. A tillage harrow according to any one of claims 1-6, characterized in that, It also includes a mounting clip (8) and an auxiliary wheel (9). The mounting clip (8) is installed on both front ends of the mounting bracket (1). The auxiliary wheel (9) is plugged into the mounting clip (8). The auxiliary wheel (9) can be adjusted up and down relative to the mounting clip (8).

9. A tillage harrow according to claim 8, characterized in that, The mounting clip (8) has a mounting plate (81) at its rear end. The mounting plate (81) and the mounting clip (8) are connected by a plurality of fourth bolts (82). The mounting clip (8) has a sleeve joint (83) at its front end. The sleeve joint (83) has a sleeve hole (85) in the middle and a set screw (84) on the side of the sleeve joint (83).

10. A tillage harrow according to claim 9, characterized in that, The auxiliary wheel (9) is provided with a connecting bracket (91), and the connecting bracket (91) is provided with bearings (92) at both ends. The bearings (92) are rotatably connected to the auxiliary wheel (9). The top of the connecting bracket (91) is provided with a plug rod (93), which is inserted into the inner side of the sleeve hole (85).

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