Agricultural harvesting device with cutting knife convenient to replace

Abstract

The utility model provides an agricultural harvesting device convenient to replace a cutting knife, which relates to the technical field of agricultural equipment and comprises a bottom grab handle and the cutting knife, an upper grab handle is mounted at one end of the cutting knife, a connecting piece is mounted at the lower ends of the bottom grab handle and the upper grab handle, a boss is arranged on the lower portion of the connecting piece, and a mounting hole is formed in the inclined surface of the boss. A spring is installed in the installation hole, a fixing column is installed at one end of the spring, an inclined face is arranged on the lower portion of the fixing column, an inserting opening is formed in one end of the bottom grab handle, and a fixing hole is formed in the bottom grab handle. The push column can be pushed out step by step through the inclined face at the bottom of the groove, when the push column moves to the position corresponding to the fixed column, the movable sleeve is held to apply pressure to the push column, the push column moves towards the inner side, the spring abutting against one end of the fixed column shrinks, and when the fixed column moves into the bottom grab handle, the push column is pushed out. And the upper grab handle is lifted to be separated, so that the grab handle or the cutting knife can be conveniently replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and more specifically, particularly relates to an agricultural harvesting device which is convenient for replacing a cutting knife. Background Art

[0002] The harvesting device includes automatic harvesting device and manual harvesting device. The automatic harvesting device is an integrated machine for harvesting crops. It completes harvesting and threshing at one time, and collects the grains into the storage bin, and then transports the grains to the transport vehicle through the conveyor belt. It can also be harvested manually, and the straw of crops such as rice and wheat is spread in the field, and then picked up and threshed by grain harvesting machinery. The manual harvesting device is generally a simple device such as a sickle.

[0003] Based on the above, the inventors have found the following problems: in rural areas, fields are relatively scattered, and small plots of land are often not convenient for automated harvesting devices to enter. In this case, manual harvesting devices are required to collect the land. Many families are equipped with harvesting tools such as sickles. The sickle consists of a handle and a cutting knife, which is generally installed directly. However, after long-term use, the connection between the cutting knife and the handle will become loose, making it inconvenient to replace the handle. If the handle is not used, the cutting knife will be difficult to function, which has certain limitations in use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and an agricultural harvesting device with easy replacement of cutting blades is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an agricultural harvesting device with easy replacement of the cutting blade, so as to solve the problem that the connection between the cutting blade and the handle is loose, making it inconvenient to replace the handle.

[0006] The purpose and effect of the agricultural harvesting device that is easy to replace the cutting blade of the utility model are achieved by the following specific technical means:

[0007] An agricultural harvesting device for easy replacement of a cutting knife comprises a bottom handle and a cutting knife, an upper handle being installed at one end of the cutting knife, a connecting piece being installed at the lower ends of the bottom handle and the upper handle, a boss being provided at the lower part of the connecting piece, a mounting hole being provided on the inclined surface of the boss, a spring being installed inside the mounting hole, a fixing column being installed at one end of the spring, a slope being provided at the lower part of the fixing column, an insertion port being provided at one end of the bottom handle, a fixing hole being provided on the bottom handle, a movable sleeve being sleeved on the bottom handle, and a pushing column being movably inserted on the movable sleeve.

[0008] Furthermore, the inner diameter of the plug-in interface is matched with the diameter of the connecting piece, and the fixing column can be gradually pushed into the interior of the plug-in interface through the lower inclined surface.

[0009] Furthermore, the diameter of the fixing column is matched to the diameter of the fixing hole, and the fixing column can be pushed into the inside of the fixing hole by the force of the spring. The number of the fixing columns and the fixing holes is four, and they are arranged in a circle.

[0010] Furthermore, four grooves are provided on the side of the bottom handle, the interior of the grooves are arranged obliquely, the fixing hole is located at one end of the grooves, and the diameter of the push column is matched with the width of the grooves.

[0011] Furthermore, when the push column moves inside the groove, the push column can be pushed out through its oblique setting, and the diameter of the push column is smaller than the diameter of the fixing hole.

[0012] Furthermore, a first thread is formed at one end of the bottom handle, a second thread is formed at the lower end of the upper handle, the upper handle is connected to a fastening sleeve via the second thread, and the fastening sleeve can be connected to the bottom handle via the first thread.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the fixed sleeve is rotated to the bottom handle or the upper handle, and then the movable sleeve is pushed, and the movable sleeve drives the pushing column to move. When the pushing column moves inside the groove, the pushing column can be gradually pushed out through the inclined surface at the bottom of the groove. When the pushing column moves to a position corresponding to the fixed column, the movable sleeve is held to apply pressure to the pushing column, and the pushing column moves inward, and the spring at one end of the fixed column contracts. When the fixed column moves to the inside of the bottom handle, the upper handle can be lifted to separate it, so that the handle or the cutting knife can be replaced conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is an overall assembly diagram of an agricultural harvesting device which is convenient for replacing a cutting knife.

[0016] Figure 2 The utility model is a schematic diagram of the upper assembly of an agricultural harvesting device which is convenient for replacing a cutting knife.

[0017] Figure 3 The utility model is a schematic diagram of the upper part of an agricultural harvesting device which is convenient for replacing a cutting knife.

[0018] Figure 4 The utility model is a schematic diagram of the lower assembly of an agricultural harvesting device which is convenient for replacing a cutting knife.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Bottom handle; 2. Upper handle; 3. Cutting knife; 4. Connector; 5. Boss; 6. Mounting hole; 7. Spring; 8. Fixed column; 9. Groove; 10. Moving sleeve; 11. Push column; 12. Fixed hole; 13. Plug port; 14. Second thread; 15. First thread; 16. Fastening sleeve. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example:

[0025] As attached Figure 1 To Attachment Figure 4 As shown:

[0026] The utility model provides an agricultural harvesting device which is convenient for replacing a cutting knife, comprising a bottom handle 1 and a cutting knife 3, one end of the cutting knife 3 is installed with an upper handle 2, the lower ends of the bottom handle 1 and the upper handle 2 are installed with a connecting piece 4, the lower part of the connecting piece 4 is provided with a boss 5, the inclined surface of the boss 5 is provided with a mounting hole 6, a spring 7 is installed inside the mounting hole 6, a fixing column 8 is installed at one end of the spring 7, the lower part of the fixing column 8 is provided with an inclined surface, an insertion port 13 is provided at one end of the bottom handle 1, a fixing hole 12 is provided on the bottom handle 1, a movable sleeve 10 is also sleeved on the bottom handle 1, a pushing column 11 is movably inserted on the movable sleeve 10, the inner diameter of the plugging port 13 is adapted to the diameter of the connecting piece 4, and the fixing column 8 can be gradually pushed into the insertion port through the lower inclined surface Inside the interface 13, the diameter of the fixing column 8 is matched with the diameter of the fixing hole 12, and the fixing column 8 can be pushed into the inside of the fixing hole 12 by the force of the spring 7. The number of the fixing columns 8 and the fixing holes 12 is four, which are respectively arranged in a circle. The fixing sleeve 16 is rotated to the bottom handle 1 or the upper handle 2, and then the movable sleeve 10 is pushed. The movable sleeve 10 drives the pushing column 11 to move. When the pushing column 11 moves inside the groove 9, the pushing column 11 can be gradually pushed out through the inclined surface at the bottom of the groove 9. When the pushing column 11 moves to the position corresponding to the fixed column 8, hold the movable sleeve 10 to apply pressure to the pushing column 11, and the pushing column 11 moves inward, and the spring 7 at one end of the fixed column 8 contracts. When the fixed column 8 moves to the inside of the bottom handle 1, the upper handle 2 can be lifted to separate.

[0027] Among them, four grooves 9 are opened on the side of the bottom handle 1, the interior of the groove 9 is obliquely set, the fixing hole 12 is located at one end of the groove 9, the diameter of the pushing column 11 is adapted to the width of the groove 9, and when the pushing column 11 moves inside the groove 9, the pushing column 11 can be pushed out through its oblique setting. The diameter of the pushing column 11 is smaller than the diameter of the fixing hole 12. When the pushing column 11 moves to a position corresponding to the fixed column 8, hold the movable sleeve 10 to apply pressure to the pushing column 11, and the pushing column 11 moves inward, and the spring 7 at one end of the fixed column 8 contracts, which is convenient for disassembly.

[0028] Among them, a first thread 15 is opened at one end of the bottom handle 1, and a second thread 14 is opened at the lower end of the upper handle 2. The upper handle 2 is connected with a fastening sleeve 16 through the second thread 14. The fastening sleeve 16 can be connected to the bottom handle 1 through the first thread 15. The fixing column 8 enters the interior of the fixing hole 12 to connect the bottom handle 1 and the upper handle 2, and then the fastening sleeve 16 is rotated so that the two ends of the fastening sleeve 16 and the first thread 15 are connected with the second thread respectively, so that the connection between the bottom handle 1 and the upper handle 2 can be more firmly connected.

[0029] The specific usage and function of this embodiment are as follows:

[0030] In the present invention, the bottom handle 1 and the upper handle 2 are gradually brought closer together. When the fixing column 8 on the upper handle 2 contacts the end face of the bottom handle 1 through the lower inclined surface, the spring on the rear side of the fixing column 8 contracts, so that the boss 5 and the connecting member 4 are gradually inserted into the interior of the insertion interface 13. By continuously moving, after the fixing column 8 moves to the fixing hole 12, the fixing column 8 is pushed out by the force of the spring 7 and enters the interior of the fixing hole 12 to connect the bottom handle 1 and the upper handle 2. Then, the fastening sleeve 16 is rotated to connect the two ends of the fastening sleeve 16 and the first thread 15 and the second thread respectively, so that the bottom handle 1 and the upper handle 2 can be connected. The connection is more stable; when the bottom handle 1 or the cutting knife 3 needs to be replaced, first rotate the fixed sleeve 16 to the bottom handle 1 or the upper handle 2, and then push the movable sleeve 10, the movable sleeve 10 drives the pushing column 11 to move, and when the pushing column 11 moves inside the groove 9, the pushing column 11 can be gradually pushed out through the inclined surface at the bottom of the groove 9. When the pushing column 11 moves to a position corresponding to the fixed column 8, hold the movable sleeve 10 to apply pressure to the pushing column 11, the pushing column 11 moves inward, and the spring 7 at one end of the fixed column 8 contracts. When the fixed column 8 moves to the inside of the bottom handle 1, lift the upper handle 2 to separate it.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An agricultural harvesting device for facilitating replacement of a cutting blade, comprising a bottom handle (1) and a cutting blade (3), characterized in that: An upper handle (2) is installed at one end of the cutting knife (3), and a connecting piece (4) is installed at the lower ends of the bottom handle (1) and the upper handle (2). A boss (5) is provided at the lower part of the connecting piece (4), and a mounting hole (6) is provided on the inclined surface of the boss (5). A spring (7) is installed inside the mounting hole (6), and a fixing column (8) is installed at one end of the spring (7). The lower part of the fixing column (8) is provided with an inclined surface. An insertion port (13) is provided at one end of the bottom handle (1), and a fixing hole (12) is provided on the bottom handle (1). A movable sleeve (10) is also sleeved on the bottom handle (1), and a push column (11) is movably inserted on the movable sleeve (10).

2. An agricultural harvesting device for easy replacement of cutting blades as claimed in claim 1, characterized in that: The inner diameter of the plug-in port (13) is matched to the diameter of the connecting piece (4), and the fixing column (8) can be gradually pushed into the interior of the plug-in port (13) through the lower inclined surface.

3. An agricultural harvesting device for easy replacement of cutting blades as claimed in claim 1, characterized in that: The diameter of the fixing column (8) is matched to the diameter of the fixing hole (12), and the fixing column (8) can be pushed into the interior of the fixing hole (12) by the force of the spring (7). The number of the fixing column (8) and the fixing hole (12) is four, and they are arranged in a circle.

4. An agricultural harvesting device for easy replacement of cutting blades as claimed in claim 1, characterized in that: Four grooves (9) are provided on the side of the bottom handle (1), the interior of the grooves (9) are arranged obliquely, the fixing hole (12) is located at one end of the groove (9), and the diameter of the pushing column (11) is adapted to the width of the groove (9).

5. An agricultural harvesting device for easy replacement of cutting blades as claimed in claim 4, characterized in that: When the push column (11) moves inside the groove (9), the push column (11) can be pushed out through its oblique arrangement, and the diameter of the push column (11) is smaller than the diameter of the fixing hole (12).

6. The agricultural harvesting device for easy replacement of cutting blades as claimed in claim 1, characterized in that: A first thread (15) is formed at one end of the bottom handle (1), a second thread (14) is formed at the lower end of the upper handle (2), the upper handle (2) is connected to a fastening sleeve (16) via the second thread (14), and the fastening sleeve (16) can be connected to the bottom handle (1) via the first thread (15).

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