Protective sickle

Abstract

The utility model relates to the technical field of agricultural instruments, and discloses a protective sickle which comprises a sickle handle, the left side of the sickle handle is fixedly connected with a top block, the upper end and the lower end of the left side of the top block are both fixedly connected with sickle heads, the close sides of the two sickle heads are fixedly connected with a rotating column, and the outer portion of the rotating column is rotationally connected with a cutting edge. A button is slidably connected to the inner wall of the front end of the tool bit at the top end, a limiting ring is fixedly connected to the outer bottom end of the button, a first spring is arranged on the inner wall of the tool bit at the top end, an outer column is rotatably connected to the bottom end of the button, an inner column is slidably connected to the inner wall of the outer column, and rotating shafts are rotatably connected to the front side and the rear side of the middle of the inner column. According to the sickle, the outer column and the inner column can be driven to rotate around the rotating shaft by pressing the button, so that the clamping column is driven to move, the clamping column can be separated from the cutting edge, the cutting edge can be folded by rotating at the moment, workers are prevented from being accidentally injured when the sickle is not used, and the safety of the sickle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a protective sickle. Background Art

[0002] Agricultural machinery technology refers to various mechanical equipment and technologies used in the agricultural production process, including tillage, sowing, fertilization, irrigation, harvesting, etc. The application of these technologies and equipment can improve agricultural production efficiency, reduce labor intensity, and ensure food security.

[0003] After searching, Chinese patent announcement number: CN215453985U discloses a safety sickle, including a sickle body and a rubber strip. The sickle body is a conventional sickle structure, and a strip storage groove is provided at the end of the handle of the sickle body. The diameter of the strip storage groove is the same as the diameter of the rubber strip, and the rubber strip can be inserted into the storage groove, and 5 cm of the rubber strip end is left to facilitate the extraction of the rubber strip; the rubber strip is a strip structure made of rubber material, and a card slot is provided on the side of the strip structure, so that the card slot can be buckled on the blade to play a protective role. The utility model can use the rubber strip to buckle on the blade of the sickle when people do not need to use the sickle, which plays a protective role and ensures people's safety when carrying and storing.

[0004] The beneficial effects in the above patent specification mention that "when people do not need to use the sickle, the rubber strip can be buckled on the blade of the sickle to play a protective role and ensure people's safety when carrying and storing it." Although the above patent can use the rubber strip to buckle on the blade of the sickle to play a protective role, the sickle cannot be folded during actual use, which causes it to occupy a large amount of space, and the extended blade head will still pose a danger to the staff. Therefore, a protective sickle is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a protective sickle, aiming to improve the problem in the prior art that the sickle cannot be folded, which not only takes up space but also the extended blade head part may cause danger to the staff.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A protective sickle comprises a handle, a top block is fixedly connected to the left side of the handle, a cutting head is fixedly connected to the upper and lower ends of the left side of the top block, a rotating column is fixedly connected to the adjacent sides of the two cutting heads, a blade is rotatably connected to the outside of the rotating column, a button is slidably connected to the inner wall of the front end of the cutting head at the top, a limiting ring is fixedly connected to the outer bottom end of the button, a spring is arranged on the inner wall of the cutting head at the top, an outer column is rotatably connected to the bottom end of the button, an inner column is slidably connected to the inner wall of the outer column, a rotating shaft is rotatably connected to the front and rear sides of the middle part of the inner column, a clamping column is rotatably connected to the other end of the inner column, the outer part of the clamping column is in a clamping relationship with the inner wall of the blade, a pushing assembly is slidably connected to the inner wall of the rear end of the top block, and an adjusting assembly is fixedly connected to the outer right bottom end of the handle;

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

[0009] The ejection assembly comprises a top column, the outer portion of the top column is slidably connected to the rear end inner wall of the top block, the rear end of the top column is slidably connected to a limit block, and the rear end inner wall of the top block is provided with a second spring;

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

[0011] The adjusting assembly comprises a rack, the top end of the rack is fixedly connected to the bottom right end of the outer side of the knife handle, the outer right side of the knife handle is slidably connected with a handle, the left inner wall of the handle is rotatably connected with a gear, the handle and the gear are meshingly connected, the rear end of the gear is fixedly connected with a pillar, the rear end of the pillar is fixedly connected with a knob, the front end of the knob is fixedly connected with two limit columns, the outer part of the limit column is in a snap-fitting relationship with the rear end inner wall of the handle, the left rear end of the handle is rotatably connected with a rubber ring, and the outer rear end of the gear is sleeved with a spring three;

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

[0013] The upper and lower ends of the blade are rotatably connected to the adjacent sides of the two blade heads, and the outer portion of the limit ring is slidably connected to the inner wall of the top blade head;

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

[0015] One end of the spring 1 is fixedly connected to one side of the inner wall of the top cutter head, the other end of the spring 1 is fixedly connected to one side of the button, one end of the spring 2 is fixedly connected to one side of the limit block, and the other end of the spring 2 is fixedly connected to one side of the rear end inner wall of the top block;

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

[0017] The outer wall of the rotating shaft is rotatably connected to the inner wall of the cutter head at the top, and the outer part of the clamping column is slidably connected to the inner wall of the cutter head at the top;

[0018] As a further description of the above technical solution:

[0019] The outer portion of the blade is slidably connected to the front inner wall of the handle, and the outer portion of the limit block is slidably connected to the rear inner wall of the top block;

[0020] As a further description of the above technical solution:

[0021] One end of the spring three is fixedly connected to one side of the rubber ring, and the other end of the spring three is fixedly connected to one side of the knob.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, pressing the button can drive the outer column and the inner column to rotate around the rotating shaft, thereby driving the clamping column to move so that it can be disengaged from the engagement with the blade. At this time, the blade can be rotated to put it away to prevent accidental injury to the staff when not in use, thereby improving the safety of the sickle. At the same time, when the sickle is opened, the top column here will pop out the blade under the cooperation of the limit block and the second spring, thereby accelerating the starting speed of the sickle and improving work efficiency.

[0024] 2. In the utility model, the knob can be pulled out first, and then the knob can be turned to drive the gear to rotate and thus drive the handle at the top of the rack to move to the left, thereby achieving the purpose of adjusting the length and improving the applicability of the sickle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional schematic diagram of a protective sickle proposed by the utility model;

[0026] Figure 2 This is a structural schematic diagram of a spring 2 of a protective sickle proposed by the utility model;

[0027] Figure 3 This is a structural schematic diagram of a clamping column of a protective sickle proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a handle of a protective sickle proposed by the utility model;

[0029] Figure 5 The utility model is a schematic diagram of the structure of a rubber ring of a protective sickle.

[0030] Legend:

[0031] 1. Knife handle; 2. Top block; 3. Knife head; 4. Rotating column; 5. Blade; 6. Button; 7. Limiting ring; 8. Spring one; 9. Outer column; 10. Inner column; 11. Rotating shaft; 12. Clamping column; 13. Top column; 14. Limiting block; 15. Spring two; 16. Rack; 17. Handle; 18. Gear; 19. Pillar; 20. Knob; 21. Limiting column; 22. Rubber ring; 23. Spring three. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-Figure 3 The utility model provides an embodiment: a protective sickle, including a handle 1, a top block 2 is fixedly connected to the left side of the handle 1, a cutter head 3 is fixedly connected to the upper and lower ends of the left side of the top block 2, a rotating column 4 is fixedly connected to the adjacent side of the two cutter heads 3, a blade 5 is rotatably connected to the outside of the rotating column 4, and the blade 5 here is used for harvesting crops. The outside of the blade 5 is slidably connected to the front end inner wall of the handle 1, and the upper and lower ends of the blade 5 are rotatably connected to the adjacent sides of the two cutter heads 3 respectively. The cutter head 3 here plays a supporting role for the blade 5, so that it remains stable when rotating;

[0034] Reference Figure 1-Figure 3 The front inner wall of the top cutter head 3 is slidably connected with a button 6, and the outer bottom end of the button 6 is fixedly connected with a limiting ring 7. The limiting ring 7 here is used to limit the sliding range of the button 6 to prevent it from leaving the range of the cutter head 3. The outer part of the limiting ring 7 is slidably connected to the inner wall of the top cutter head 3. The inner wall of the top cutter head 3 is provided with a spring 8. The spring 8 here is used for the reset operation of the button 6. One end of the spring 8 is fixedly connected to one side of the inner wall of the top cutter head 3, and the other end of the spring 8 is fixedly connected to one side of the button 6. The cutter head 3 and the button 6 here play a supporting role for the spring 8;

[0035] Reference Figure 1-Figure 3 The bottom end of the button 6 is rotatably connected to the outer column 9, and the inner wall of the outer column 9 is slidably connected to the inner column 10. When the button 6 is pressed down, it will drive the outer column 9 and the inner column 10 to rotate, and when the two rotate, the inner column 10 will slide on the inner wall of the outer column 9. The middle of the inner column 10 is rotatably connected to the front and rear sides with a rotating shaft 11. The outer wall of the rotating shaft 11 is rotatably connected to the inner wall of the top blade head 3. The rotating shaft 11 here is used to provide a stable point for the outer column 9 to rotate, and the other end of the inner column 10 is rotatably connected to the clamping column 12;

[0036] Reference Figure 1-Figure 3 The outer part of the clamping column 12 is slidably connected to the inner wall of the top blade 3, and the outer part of the clamping column 12 is in a clamping relationship with the inner wall of the blade 5. The inner column 10 here can drive the clamping column 12 to rise when rotating, so that it is out of the clamping relationship with the inner wall of the blade 5. The inner wall of the rear end of the top block 2 is slidably connected with a push-out assembly, and the push-out assembly includes a top column 13. The outer part of the top column 13 is slidably connected to the inner wall of the rear end of the top block 2. The top block 2 here provides a stable support for the top column 13, and the rear end of the top column 13 is slidably connected to the limiting block 14;

[0037] Reference Figure 1-Figure 3 The outside of the limit block 14 is slidably connected to the inner wall of the rear end of the top block 2, and a spring 2 15 is provided on the inner wall of the rear end of the top block 2. When the blade 5 is retracted, it can squeeze the top column 13, thereby squeezing the limit block 14 and the spring 2 15 to generate a reaction force, which can provide a starting ejection speed for the blade 5 when it is opened. One end of the spring 2 15 is fixedly connected to one side of the limit block 14, and the other end of the spring 2 15 is fixedly connected to one side of the inner wall of the rear end of the top block 2. The top block 2 and the limit block 14 here provide stable support for the spring 2 15.

[0038] Reference Figure 1 , Figure 4 The outer right bottom end of the handle 1 is fixedly connected with an adjustment component, and the adjustment component includes a rack 16. The adjustment component here can be used to adjust the overall length of the sickle so that it can be adapted to workers with different arm lengths, thereby increasing the applicability of the sickle. The top of the rack 16 is fixedly connected to the outer right bottom end of the handle 1. The outer right side of the handle 1 is slidably connected with a handle 17, and the left inner wall of the handle 17 is rotatably connected with a gear 18. The surface of the handle 17 here has a ring pattern, which increases the friction with the palm of the worker to prevent accidental slipping when harvesting crops.

[0039] Reference Figure 4-Figure 5 The handle 17 is meshed with the gear 18. The rear end of the gear 18 is fixedly connected with a support 19. The rear end of the support 19 is fixedly connected with a knob 20. When the knob 20 is turned, the gear 18 can be driven to rotate, thereby driving the rack 16 to move. The front end of the knob 20 is fixedly connected with two limit columns 21. The outer portion of the limit column 21 is engaged with the inner wall of the rear end of the handle 17. The limit column 21 is used to fix the length of the sickle at the rear end after adjustment. The left side of the rear end of the handle 17 is rotatably connected with a rubber ring 22.

[0040] Reference Figure 4-Figure 5The outer rear end of the gear 18 is sleeved with a spring three 23, where the spring three 23 is used for resetting, one end of the spring three 23 is fixedly connected to one side of the rubber ring 22, and the other end of the spring three 23 is fixedly connected to one side of the knob 20, where the rubber ring 22 and the knob 20 provide support for the spring three 23, allowing it to remain stable during operation.

[0041] Working principle: When the staff does not use this protective sickle to harvest crops, they can first press the button 6. At this time, the button 6 will drive the outer column 9 and the inner column 10 to rotate around the rotating shaft 11, and the inner column 10 here is buried inside the outer column 9, that is, a sliding connection relationship. At this time, the inner column 10 can drive the clamping column 12 to rise when rotating, so that the clamping column 12 is separated from the engagement with the blade 5. At this time, the blade 5 can be rotated to put it into the slot of the handle 1, and then the hand is released. Under the action of the spring 1 8 and the limit ring 7, it is reset, so that the clamping column 12 is engaged in another hole at the top of the blade 5. Note: There are two holes on the blade 5 here, which are used for the state when opening this sickle and the state when closing the sickle. At this time, the top column 13 will be squeezed, so that the spring 2 15 cooperates with the limit block 14 to start to shrink. The top column 13 here is to eject the blade 5 at the moment of pressing the button 6 when the sickle is needed, so that the staff can rotate the blade 5.

[0042] Each person has a different habit of using a sickle. At this time, the length of the sickle needs to be adjusted to achieve the most comfortable length, thereby speeding up work efficiency. At this time, the knob 20 can be pulled first to make the limit column 21 temporarily disengage from the engagement with the handle 17. At this time, the knob 20 can be turned, and the rubber ring 22 here will rotate with the spring three 23 to prevent the spring three 23 from being subjected to the torque force, thereby causing it to break. Then, the knob 20 can be turned according to the length that needs to be adjusted. At this time, the rotation of the knob 20 will drive the support column 19 and the gear 18 to rotate. Because the rack 16 and the gear 18 here are meshed, the rack 16 and the handle 1 will be driven to move to the left, thereby achieving the purpose of adjusting the length. When the distance is adjusted to a suitable distance, release your hand. At this time, under the action of the spring three 23, the limit column 21 is re-engaged with the hole on the handle 17. The handle 17 here is arranged with a ring pattern, which mainly serves to increase the friction with the palm of the staff. The design of the handle 17 here conforms to the distribution of the human palm, which increases the comfort of the staff and speeds up work efficiency.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective sickle, comprising a handle (1), characterized in that: The left side of the knife handle (1) is fixedly connected to a top block (2), the upper and lower ends of the left side of the top block (2) are fixedly connected to a knife head (3), the adjacent sides of the two knife heads (3) are fixedly connected to a rotating column (4), the outer part of the rotating column (4) is rotatably connected to a blade (5), the front end inner wall of the top knife head (3) is slidably connected to a button (6), the outer bottom end of the button (6) is fixedly connected to a limiting ring (7), the inner wall of the top knife head (3) is provided with a spring (8), and the The bottom end of the button (6) is rotatably connected to an outer column (9), the inner wall of the outer column (9) is slidably connected to an inner column (10), the middle front and rear sides of the inner column (10) are rotatably connected to a rotating shaft (11), the other end of the inner column (10) is rotatably connected to a clamping column (12), the outer portion of the clamping column (12) is in a clamping relationship with the inner wall of the blade (5), the rear end inner wall of the top block (2) is slidably connected to a pushing component, and the outer right bottom end of the handle (1) is fixedly connected to an adjusting component.

2. A protective sickle according to claim 1, characterized in that: The ejection assembly comprises a top column (13), the outside of the top column (13) is slidably connected to the rear end inner wall of the top block (2), the rear end of the top column (13) is slidably connected to a limit block (14), and the rear end inner wall of the top block (2) is provided with a second spring (15).

3. A protective sickle according to claim 1, characterized in that: The adjustment component comprises a rack (16), the top end of the rack (16) is fixedly connected to the bottom end on the right side of the outer side of the knife handle (1), the outer right side of the knife handle (1) is slidably connected to a handle (17), the left inner wall of the handle (17) is rotatably connected to a gear (18), the handle (17) and the gear (18) are meshingly connected, the rear end of the gear (18) is fixedly connected to a pillar (19), the rear end of the pillar (19) is fixedly connected to a knob (20), the front end of the knob (20) is fixedly connected to two limit columns (21), the outer part of the limit column (21) is in a snap-fitting relationship with the inner wall of the rear end of the handle (17), the left side of the rear end of the handle (17) is rotatably connected to a rubber ring (22), and the outer rear end of the gear (18) is sleeved with a spring three (23).

4. A protective sickle according to claim 1, characterized in that: The upper and lower ends of the blade (5) are rotatably connected to adjacent sides of the two blade heads (3), and the outer portion of the limiting ring (7) is slidably connected to the inner wall of the top blade head (3).

5. A protective sickle according to claim 2, characterized in that: One end of the spring one (8) is fixedly connected to one side of the inner wall of the top cutter head (3), the other end of the spring one (8) is fixedly connected to one side of the button (6), one end of the spring two (15) is fixedly connected to one side of the limit block (14), and the other end of the spring two (15) is fixedly connected to one side of the rear end inner wall of the top block (2).

6. A protective sickle according to claim 1, characterized in that: The outer wall of the rotating shaft (11) is rotatably connected to the inner wall of the cutter head (3) at the top, and the outer part of the clamping column (12) is slidably connected to the inner wall of the cutter head (3) at the top.

7. A protective sickle according to claim 2, characterized in that: The outside of the blade (5) is slidably connected to the front inner wall of the handle (1), and the outside of the limit block (14) is slidably connected to the rear inner wall of the top block (2).

8. A protective sickle according to claim 3, characterized in that: One end of the spring three (23) is fixedly connected to one side of the rubber ring (22), and the other end of the spring three (23) is fixedly connected to one side of the knob (20).

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