Manual seed sowing device

Abstract

The utility model relates to the technical field of agricultural seeding operation tools, in particular to a manual seed sowing device. Comprising a base, a stock bin is arranged on the upper surface of the base, a spreading wheel is rotationally installed below the base and connected with a driving mechanism, the driving mechanism drives the spreading wheel to rotate, a discharging port is formed in the base, the upper portion of the discharging port is communicated with the stock bin, and the lower portion of the discharging port is aligned with the spreading wheel; the driving mechanism comprises a rotating shaft, a gear set and a crank handle, the rotating shaft is rotationally installed on the base and connected with the output end of the gear set, the input end of the gear set is connected with the crank handle, and the crank handle drives the rotating shaft to rotate; the adjusting support can move in the front-back direction so as to adjust the size of the discharging port. An eccentric structure is arranged on the rotating shaft, a driving arm is fixed to the shielding plate, and the eccentric structure of the rotating shaft drives the shielding plate to move in the left-right direction. Through the arrangement, a pure mechanical mechanism is adopted, so that the discharge flow is controlled, and the outlet is prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of agricultural seeding tools, specifically to a manual seed spreader. Background Technology

[0002] Rapeseed is an important oilseed and cash crop in my country. Currently, there are two main sowing methods for rapeseed: traditional manual sowing and mechanized sowing. Traditional manual sowing is inefficient, produces poor uniformity, and requires a large workforce, especially in large-scale planting where labor intensity is high. In recent years, with the improvement of agricultural mechanization, mechanized sowing has been gradually promoted and applied. The use of large agricultural machinery has significantly improved sowing efficiency and reduced labor intensity. However, large agricultural machinery is generally suitable for flat and large plots of land. For fragmented small plots, hilly areas with varying elevations, and special terrains that are difficult for agricultural machinery to access, manual sowing remains the main sowing method.

[0003] There are also handheld spreaders for small plots in the existing technology, but the adjustment of the discharge speed of such spreaders is relatively simple. When the discharge port opening is small or the spread material particles are large and irregular in shape, uneven discharge speed or even material jamming may easily occur.

[0004] Some handheld spreaders use a combination of batteries and motors for power. Because these spreaders are not used frequently, prolonged storage can easily lead to battery depletion and damage. Furthermore, batteries are inherently fragile components with a short lifespan. Utility Model Content

[0005] In view of the above-mentioned shortcomings or defects in the existing technology, this utility model provides a manual seed spreader, which can facilitate the sowing of rapeseed or other crop seeds on small plots of land.

[0006] A manual seed spreader includes a base with a hopper on the upper surface of the base. A spreading wheel is rotatably mounted on the lower part of the base. The spreading wheel is connected to a drive mechanism, which drives the spreading wheel to rotate. A discharge port is provided on the base, with the upper part of the discharge port connected to the hopper and the lower part aligned with the spreading wheel.

[0007] The spreading wheel is provided with several material-pushing plates at intervals. When the spreading wheel rotates, the material-pushing plates push the material falling at the discharge port and spread it forward.

[0008] The drive mechanism includes a rotating shaft, a gear set, and a hand crank. The rotating shaft is rotatably mounted on the base and is connected to the output end of the gear set. The input end of the gear set is connected to the hand crank, which drives the rotating shaft to rotate.

[0009] An adjustable support is provided on the base, and a baffle is installed on the adjustable support. The front side of the baffle covers part of the discharge port. The adjustable support can move back and forth to adjust the size of the discharge port.

[0010] An eccentric structure is provided on the rotating shaft, and a drive arm is fixed on the baffle plate. The eccentric structure of the rotating shaft drives the baffle plate to move in the left and right directions.

[0011] In some embodiments, the middle part of the rotating shaft is bent away from its own rotation axis to form an eccentric structure. The driving arm includes two parallel ones, which are forked and respectively fit the left and right sides of the eccentric structure of the rotating shaft. A groove is formed between the two driving arms, and the eccentric structure slides back and forth between the two driving arms.

[0012] In some embodiments, one end of the adjusting support is rotatably mounted on the base, and the movable end of the adjusting support extends outside the base to form a handle.

[0013] In some embodiments, a locking structure is provided between the base and the adjusting support. The locking structure is installed on the side of the base near the movable end of the adjusting support and is configured to be adjustable back and forth and fixed. The movable end of the adjusting support is connected to the locking structure.

[0014] In some embodiments, an elastic element is provided between the adjusting support and the base, the elastic element pushing the adjusting support forward so that the movable end of the adjusting support abuts against the locking structure.

[0015] In some embodiments, a movable groove is provided on the base, and a locking structure is installed in the movable groove. The locking structure is a set bolt that passes through the movable groove. The set bolt can move back and forth along the movable groove and can be tightened and fixed at any position in the movable groove. The movable end of the adjusting support abuts against the set bolt.

[0016] In some embodiments, the rotation axis of the hand crank is arranged in the left-right direction, and the rotation axis of the spreading wheel is arranged in the vertical direction; the material feeding plate is fixed radially on the upper end surface of the spreading wheel.

[0017] In some embodiments, the hopper is detachably connected to the base.

[0018] The manual seed spreader using the above-described technical solution of this utility model has the following effects:

[0019] Seeders are agricultural implements with a low usage rate, typically used no more than three times a year. Therefore, the seeder described in this application adopts a purely mechanical design, without including easily damaged electrical components such as batteries, and its normal operation will not be affected by prolonged storage.

[0020] Furthermore, the size of the discharge port in this invention can be adjusted by a baffle plate, which itself can be driven by the rotating shaft of the drive mechanism to swing left and right. This makes the feeding process smoother and avoids clogging of the discharge port, which could affect the sowing density.

[0021] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0022] Figure 1 This is a front view of the manual seed spreader of this utility model;

[0023] Figure 2 This is a side view of the manual seed spreader of this utility model;

[0024] Figure 3 yes Figure 2 Sectional view at point AA;

[0025] Figure 4 This is a partial 3D view of the drive mechanism.

[0026] Explanation of reference numerals in the attached figures

[0027] 1-Base;

[0028] 2-Hopper;

[0029] 3-Spreading wheel, 3a-Pulling plate;

[0030] 4-Discharge port;

[0031] 5-Drive mechanism, 5a-Rotating shaft, 5a1-Eccentric structure, 5b-Gear set, 5c-Hand crank;

[0032] 6-Baffle plate, 6a-Drive arm;

[0033] 7-Adjustable support;

[0034] 8-Locked structure. Detailed Implementation

[0035] The following provides a detailed description of specific embodiments of the present invention. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0036] In this invention, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0037] This utility model provides a manual seed spreader, including a base 1, a hopper 2 on the upper surface of the base 1, a spreading wheel 3 rotatably mounted on the lower part of the base 1, the spreading wheel 3 being connected to a drive mechanism 5, the drive mechanism 5 driving the spreading wheel 3 to rotate, a discharge port 4 on the base 1, the upper part of the discharge port 4 communicating with the hopper 2, and the lower part of the discharge port 4 aligned with the spreading wheel 3.

[0038] The spreading wheel 3 is provided with several material-pushing plates 3a at intervals. When the spreading wheel 3 rotates, the material-pushing plates 3a push the material falling at the discharge port 4 and spread it forward. The driving mechanism 5 includes a rotating shaft 5a, a gear set 5b, and a hand crank 5c. The rotating shaft 5a is rotatably mounted on the base 1. The rotating shaft 5a is connected to the output end of the gear set 5b, and the input end of the gear set 5b is connected to the hand crank 5c. The hand crank 5c drives the rotating shaft 5a to rotate.

[0039] An adjusting support 7 is provided on the base 1, and a baffle 6 is installed on the adjusting support 7. The front side of the baffle 6 blocks part of the discharge port 4. The adjusting support 7 can move back and forth to adjust the size of the discharge port 4. An eccentric structure 5a1 is provided on the rotating shaft 5a, and a drive arm 6a is fixed on the baffle 6. The eccentric structure 5a1 of the rotating shaft 5a drives the baffle 6 to move left and right.

[0040] This invention proposes a handheld, small-sized seed spreader. A handle or shoulder strap is provided on the base 1 or hopper for easy carrying. The seed spreader is hand-cranked to throw the seeds forward. The seed outlet 4 is located on the base 1 and connected to the bottom of the hopper 2. The seeds in the hopper 2 fall directly under gravity. The outlet 4 is blocked by a baffle plate 6. The baffle plate 6 can be moved back and forth to adjust the size of the outlet 4, thereby regulating the seed falling speed. The baffle plate 6 can completely block the outlet 4, thus closing it.

[0041] Some larger or irregularly shaped seeds can easily clog the discharge port 4. Therefore, the baffle 6 of this application can move continuously in the left and right directions during operation, thereby preventing clogging of the discharge port 4. The left and right movement of the baffle 6 is driven by the drive mechanism 5 of the sowing wheel 3. During seed sowing, the baffle 6 and the sowing wheel 3 move synchronously while the sowing wheel 3 rotates. The specific structure is as follows: Figure 4 As shown, the hand crank 5c drives the rotating shaft 5a to rotate after the gear set 5b changes speed. While the rotating shaft 5a drives the spreading wheel 3 to rotate, the eccentric structure 5a1 on the rotating shaft 5a cooperates with the drive arm 6a to drive the front part of the shielding plate 6 to swing left and right.

[0042] like Figure 4As shown, the central part of the rotating shaft 5a is bent away from its own rotation axis 5a to form an eccentric structure 5a1. The driving arms 6a include two parallel ones, each forked, and each two driving arms 6a respectively abut the left and right sides of the eccentric structure 5a1. A groove is formed between the two driving arms 6a, allowing the eccentric structure 5a1 to slide back and forth between them. When the eccentric structure 5a1 moves left or right, it pushes one of the driving arms 6a to that side, thereby causing the baffle plate 6 to move left or right. When the eccentric structure 5a1 moves back and forth, it slides between the two driving arms 6a.

[0043] The rear end of the baffle plate 6 is rotatably mounted on the adjusting support 7. Moving the adjusting support 7 back and forth will cause the baffle plate 6 to move back and forth. When the baffle plate 6 moves forward, the opening of the discharge port 4 becomes smaller, and the discharge flow rate decreases. Conversely, when the adjusting support 7 moves backward, the opening of the discharge port 4 becomes larger, and the discharge flow rate increases.

[0044] The specific structure for adjusting the forward and backward movement of the adjustable support 7 is as follows: Figure 3 As shown, one end of the adjusting support 7 is rotatably mounted on the base 1, and the movable end of the adjusting support 7 extends out of the base 1 to form a handle.

[0045] A locking structure 8 is provided between the base 1 and the adjusting support 7. The locking structure 8 is installed on the side of the base 1 near the movable end of the adjusting support 7. The locking structure 8 is configured to be adjustable back and forth and fixed. The movable end of the adjusting support 7 is connected to the locking structure 8.

[0046] An elastic element is provided between the adjusting support 7 and the base 1. The elastic element pushes the adjusting support 7 forward, so that the movable end of the adjusting support 7 is in contact with the locking structure 8. The elastic element keeps the movable end of the adjusting support 7 tightly against the locking structure 8. At the same time, when it receives obstruction or stress, the adjusting support 7 can also overcome the elastic force of the elastic element and move backward, further expanding the opening size of the outlet, thereby preventing the outlet 4 from being blocked.

[0047] A movable groove is formed on the base 1, and a locking structure 8 is installed in the movable groove. The locking structure 8 is a set bolt that passes through the movable groove. The set bolt can move back and forth along the movable groove and can be tightened and fixed at any position in the movable groove. The movable end of the adjusting support 7 rests against the set bolt. The movable end of the adjusting support 7 also extends out of the base 1 from the movable groove.

[0048] The rotating shaft 5a of the hand crank 5c is arranged in the left-right direction, and the rotating shaft 5a of the spreading wheel 3 is arranged in the vertical direction; the material feeding plate 3a is radially fixed to the upper end surface of the spreading wheel 3. The hopper 2 is detachably connected to the base 1.

[0049] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0051] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A hand-held seed broadcaster, characterized in that The utility model provides a kind of seed and fertilizer spreading machine, including pedestal (1), the upper surface of pedestal (1) is provided with bunker (2), the lower of pedestal (1) is rotatably installed spreading wheel (3), spreading wheel (3) is connected drive mechanism (5), drive mechanism (5) drives spreading wheel (3) to rotate, and the upper of pedestal (1) is provided with discharge port (4), and the upper of discharge port (4) is communicated with bunker (2), and the lower of discharge port (4) is aligned with spreading wheel (3); The spreading wheel (3) is provided with a plurality of material shifting plates (3a) at intervals, and the material shifting plates (3a) push the material falling from the discharge port (4) and spread forward when the spreading wheel (3) rotates. The drive mechanism (5) includes a rotating shaft (5a), a gear set (5b) and a hand crank (5c), the rotating shaft (5a) is rotatably installed on the pedestal (1), the rotating shaft (5a) is connected with the output end of the gear set (5b), the input end of the gear set (5b) is connected with the hand crank (5c), and the hand crank (5c) drives the rotating shaft (5a) to rotate. An adjusting support (7) is arranged on the pedestal (1), and a shielding plate (6) is installed on the adjusting support (7), the front side of the shielding plate (6) shields part of the discharge port (4), and the adjusting support (7) can move in the front-back direction to adjust the size of the discharge port (4). An eccentric structure (5a1) is arranged on the rotating shaft (5a), a driving arm (6a) is fixed on the shielding plate (6), and the eccentric structure (5a1) of the rotating shaft (5a) drives the shielding plate (6) to move left and right.

2. The hand-held seed broadcaster of claim 1, wherein, The rotating shaft (5a) is bent in the middle to deviate from its rotation axis (5a) to form the eccentric structure (5a1), the driving arm (6a) includes two driving arms arranged in parallel, the two driving arms (6a) are fork-shaped, and the two driving arms (6a) are respectively attached to the left and right sides of the eccentric structure (5a1) of the rotating shaft (5a); a sliding groove is formed between the two driving arms (6a), and the eccentric structure (5a1) slides forward and backward between the two driving arms (6a).

3. The hand-held seed broadcaster of claim 1, wherein, The adjusting support (7) is rotatably installed on the pedestal (1), and the movable end of the adjusting support (7) extends out of the pedestal (1) to form a handle.

4. The hand-held seed broadcaster of claim 1, wherein, A locking structure (8) is arranged between the pedestal (1) and the adjusting support (7), the locking structure (8) is installed on one side of the pedestal (1) close to the movable end of the adjusting support (7), the locking structure (8) is arranged to be adjustable and fixed in the front-back direction, and the movable end of the adjusting support (7) is connected with the locking structure (8).

5. The hand-held seed broadcaster of claim 4, wherein, An elastic member is arranged between the adjusting support (7) and the pedestal (1), the elastic member supports the adjusting support (7) from the front side, and the movable end of the adjusting support (7) is attached to the locking structure (8).

6. The hand-held seed broadcaster of claim 4 wherein, An active slot is formed in the pedestal (1), the locking structure (8) is installed in the active slot, the locking structure (8) is a locking screw arranged through the active slot, the locking screw can move forward and backward along the active slot, and the locking screw can be tightened and fixed at any position in the active slot. The movable end of the adjusting support (7) is attached to the locking screw.

7. The hand-held seed broadcaster of claim 1, wherein, The rotation shaft (5a) of the hand crank (5c) is arranged in the left-right direction, and the rotation shaft (5a) of the spreading wheel (3) is arranged in the vertical direction; the distributing plate (3a) is fixed on the upper end surface of the spreading wheel (3) in a radial manner.

8. The hand-held seed broadcaster of claim 1, wherein, The hopper (2) is detachably connected with the base (1).

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