A seed drill

Abstract

The present invention discloses a hole-seeding machine, and relates to the technical field of agricultural machinery. The hole-seeding machine comprises a mounting frame, a driving motor, a connecting rod mechanism, a feeding mechanism, a storage box and a hole-punching head. The driving motor is fixedly mounted on the mounting frame and connected to the connecting rod mechanism, the connecting rod mechanism is connected to the hole-punching head, the driving motor is used to drive the hole-punching head to rise or fall through the connecting rod mechanism, the storage box is connected to the feeding mechanism, the feeding mechanism is connected to the hole-punching head, the storage box is used to provide seeds to the feeding mechanism, and the feeding mechanism can output seeds to the hole-punching head when the hole-punching head descends to break the ground to form a planting hole, so that the seeds pass through the hole-punching head and fall into the planting hole. The hole-seeding machine provided by the present invention can not only realize continuous and rapid sowing, but also can carry out intermittent mechanized seedling supplementation, reduce labor costs, and occupy a small space, small land damage area, and ensure crop yield.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a seed drill. Background Art

[0002] At present, the seed drills on the market generally need to be operated manually or in conjunction with agricultural machinery. Among them, the manual seed drill requires 2 to 3 people to operate, with low work efficiency and high labor costs; the seed drill used in conjunction with agricultural machinery is large in size and occupies a large space, causing large damage to the land during farming, affecting the yield of crops, and it can only carry out continuous farming and sowing, and cannot carry out small-scale seedling replacement, resulting in the need for manual seedling replacement in the later stage of farming, which increases labor costs.

[0003] In view of this, it is particularly important to design and manufacture a hole seeder that is convenient for seedling supplementation, especially in the production of hole seeders. Summary of the invention

[0004] The purpose of the present invention is to provide a hole seeder that can realize continuous and rapid sowing and intermittent mechanized seedling replacement, thereby reducing labor costs, taking up little space, and reducing land damage area, thereby ensuring crop yields.

[0005] The present invention is achieved by adopting the following technical solutions.

[0006] A hole drill comprises a mounting frame, a driving motor, a connecting rod mechanism, a feeding mechanism, a material storage box and a hole punching head. The driving motor is fixedly mounted on the mounting frame and connected to the connecting rod mechanism. The connecting rod mechanism is connected to the hole punching head. The driving motor is used to drive the hole punching head to rise or fall through the connecting rod mechanism. The material storage box is connected to the feeding mechanism. The feeding mechanism is connected to the hole punching head. The material storage box is used to provide seeds to the feeding mechanism. The feeding mechanism can output seeds to the hole punching head when the hole punching head descends to break the ground to form a planting hole, so that the seeds pass through the hole punching head and fall into the planting hole.

[0007] Optionally, the connecting rod mechanism is connected to the feeding mechanism, the punching head is fixedly connected to the bottom of the feeding mechanism, the storage box is fixedly installed on the feeding mechanism, and the driving motor is used to drive the punching head to rise or fall through the connecting rod mechanism and the feeding mechanism. The feeding mechanism can synchronously drive the punching head to rise or fall during the lifting process to complete the action of breaking the ground to form a planting hole.

[0008] Optionally, the feeding mechanism includes a feeding box, a seed hole wheel, a linkage shaft and a transmission assembly, the seed hole wheel is rotatably installed in the feeding box and connected to the transmission assembly through the linkage shaft, the feeding box is connected to the connecting rod mechanism, the feeding box is provided with a feed inlet and a discharge outlet, the storage box is fixedly installed on the feeding box and communicated with the feed inlet, and the punching head is fixedly connected to the bottom of the feeding box and communicated with the discharge outlet. The seeds output by the feeding mechanism can pass through the punching head and fall into the planting hole to complete the sowing operation.

[0009] Optionally, a accommodating groove is provided on the circumference of the seed hole wheel, and the seed hole wheel can rotate to a position where the accommodating groove is connected to the feed inlet, so that the seeds in the storage box fall into the accommodating groove through the feed inlet, and the seed hole wheel can also rotate to a position where the accommodating groove is connected to the discharge port, so that the seeds in the accommodating groove fall into the planting hole through the discharge port and the hole punching head, thereby realizing the sowing or seedling supplementing function.

[0010] Optionally, the transmission assembly includes a ratchet, a pawl and a housing, the linkage shaft passes through the housing and can rotate relative to the housing, the housing is connected to the connecting rod mechanism, the ratchet is sleeved outside the linkage shaft and fixedly connected to the linkage shaft, the pawl is installed in the housing and cooperates with the ratchet. The pawl can be displaced under the drive of the housing to drive the ratchet to rotate in a first direction, and the pawl can also prevent the ratchet from rotating in a second direction, the first direction being opposite to the second direction.

[0011] Optionally, the transmission assembly further includes a first elastic member, one end of the pawl is hinged to the housing, and the other end is matched with the ratchet, the pawl is connected to the housing through the first elastic member, and the first elastic member is used to apply elastic force to the pawl to rotate toward the ratchet wheel, thereby ensuring the matching state of the pawl and the ratchet wheel.

[0012] Optionally, the connecting rod mechanism includes a crank, a connecting rod and a rocker, the crank and the rocker are relatively arranged at two ends of the mounting frame, and both can rotate relative to the mounting frame, one end of the crank is connected to the driving motor, and the other end is hinged to the connecting rod, the connecting rod is fixedly connected to the feed box, and the rocker is fixedly connected to the shell. The rocker can rotate relative to the mounting frame, and the shell can rotate relative to the feed box to realize the swing of the rocker and the shell, so that the operation of the entire connecting rod mechanism is smooth and reliable.

[0013] Optionally, the feed box includes a box body, a box cover and a limiting sleeve, the box body and the box cover are detachably connected and combined to form a feed cavity, the seed hole wheel is rotatably arranged in the feed cavity, the feed inlet and the discharge port are both opened on the box body and are communicated with the feed cavity, and the limiting sleeve is fixedly connected to the box body and connected to the connecting rod mechanism to fix the relative position of the connecting rod mechanism and the feed box to prevent the feed box from being displaced relative to the connecting rod mechanism.

[0014] Optionally, the hole punching head includes a hole punching rod, a hole expanding tongue, a hinge shaft and a support block, the hole punching rod is hinged to the hole expanding tongue through the hinge shaft, the hole punching rod is provided with a pointed head, the pointed head is arranged in close contact with the hole expanding tongue, the support block is fixedly connected to the side of the hole expanding tongue away from the pointed head, and the support block is used to resist the ground when the pointed head breaks the ground, so that the hole expanding tongue rotates relative to the hole punching rod and separates from the pointed head to complete the hole expanding operation. The pointed head is used to break the ground to form a planting hole and realize the hole punching function.

[0015] Optionally, the hole punching head further comprises a first torsion spring, which is sleeved outside the hinge shaft, one end of the first torsion spring abuts against the hole expanding tongue, and the other end abuts against the hole punching rod, and the first torsion spring is used to drive the hole expanding tongue to rotate in a direction close to the pointed portion. The first torsion spring can apply elastic force to the hole expanding tongue, so that the hole expanding tongue has a movement tendency close to the pointed portion.

[0016] Optionally, the punching rod is provided with a drop hole, the feeding mechanism is connected with the drop hole, and the drop hole is used for the seeds output by the feeding mechanism to pass through so that the seeds fall into the planting hole, thereby completing the sowing operation.

[0017] Optionally, the storage box includes a box body, a box cover and a clamping piece, the inner wall of the box body is provided with a plurality of clamping slots, the plurality of clamping slots are extended along the depth direction of the box body, the clamping piece is movably mounted on the box cover and clamped with one clamping slot, the bottom of the box body is provided with an outlet, the outlet is connected with the feeding mechanism, the box cover is slidably arranged in the box body, the box body is used to store seeds, the box cover is used to press on the seeds, and the box cover can slide relative to the box body when the seeds enter the feeding mechanism through the outlet, so that the clamping piece moves relative to the box cover, and escapes from one clamping slot and clamps with another clamping slot, thereby locking the relative position of the box cover and the box body again.

[0018] Optionally, the storage box further includes a second torsion spring, the box cover is provided with a fixed shaft, the clamping piece is sleeved outside the fixed shaft and can rotate relative to the fixed shaft, the second torsion spring is sleeved outside the fixed shaft, one end of the second torsion spring abuts against the clamping piece, and the other end abuts against the box cover, and the second torsion spring is used to drive the clamping piece to rotate in a direction close to the slot. The second torsion spring can apply elastic force to the clamping piece so that the clamping piece has a movement tendency close to the slot.

[0019] Optionally, the storage box further comprises a second elastic member, the box cover is provided with a slide slot, the clamping member is provided with a slider, the slider is slidably arranged in the slide slot, one end of the elastic member abuts against the clamping member, and the other end abuts against the box cover, and the elastic member is used to drive the clamping member to slide in a direction close to the slot. The second elastic member can apply elastic force to the clamping member so that the clamping member has a movement tendency close to the slot.

[0020] Optionally, the storage box further comprises an unlocking member, which is movably mounted on the box cover and connected to the clamping member, and the unlocking member is used to drive the clamping member to move relative to the box cover so that the clamping member is disengaged from the clamping slot, thereby releasing the locking state between the box cover and the box body, making it easy to take the box cover out of the box body, and further facilitating the replenishment of seeds into the box body.

[0021] Optionally, the unlocking member includes a rotating handle and a connecting rope, the rotating handle is rotatably mounted on the box cover and connected to the clamping member via the connecting rope, and the rotating handle can pull the clamping member via the connecting rope to make the clamping member move relative to the box cover, thereby releasing the clamping state between the clamping member and the clamping slot, so as to facilitate the removal of the box cover from the box body.

[0022] The hole seeder provided by the present invention has the following beneficial effects:

[0023] The hole-seeding machine provided by the present invention has a driving motor fixedly mounted on a mounting frame and connected to a connecting rod mechanism, the connecting rod mechanism is connected to a hole-punching head, the driving motor is used to drive the hole-punching head to rise or fall through the connecting rod mechanism, the storage box is connected to a feeding mechanism, the feeding mechanism is connected to the hole-punching head, the storage box is used to provide seeds to the feeding mechanism, and the feeding mechanism can output seeds to the hole-punching head when the hole-punching head descends to break the ground to form a planting hole, so that the seeds pass through the hole-punching head and fall into the planting hole. Compared with the prior art, the hole-seeding machine provided by the present invention can realize continuous and rapid sowing, and can also carry out intermittent mechanized seedling supplementation, thereby reducing labor costs, and occupies a small space, has a small land damage area, and ensures crop yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic structural diagram of a hole seeder from one perspective provided by the first embodiment of the present invention;

[0026] Figure 2 A cross-sectional view of a feeding mechanism in a hole seeder provided in a first embodiment of the present invention;

[0027] Figure 3 An exploded view of a feeding mechanism in a hole seeder provided in a first embodiment of the present invention;

[0028] Figure 4 for Figure 3A schematic diagram of the structure of the middle pawl and the ratchet wheel;

[0029] Figure 5 A schematic structural diagram of the hole seeder provided by the first embodiment of the present invention from another perspective;

[0030] Figure 6 A schematic structural diagram of a hole punching head in a hole drill provided by the first embodiment of the present invention from one perspective;

[0031] Figure 7 A schematic structural diagram of a hole punching head in a hole drill provided by the first embodiment of the present invention from another perspective;

[0032] Figure 8 for Figure 7 A schematic diagram of the structure in which the middle expansion hole tongue is fixedly connected to the abutment block;

[0033] Fig. 9 An exploded view of a hole punching head in a hole drill provided by a first embodiment of the present invention;

[0034] Fig.10 A cross-sectional view of a material storage box in a hole seeder provided by the first embodiment of the present invention, with the box cover and the box body in a locked state;

[0035] Fig.11 A cross-sectional view of a material storage box in a hole seeder provided by the first embodiment of the present invention, with the box cover and the box body in an unlocked state;

[0036] Fig.12 A schematic diagram of the structure of a material storage box in a hole seeder provided by the first embodiment of the present invention;

[0037] Fig.13 A sectional view of a material storage box in a hole seeder provided in accordance with a second embodiment of the present invention.

[0038] Icons: 10-hole seed drill; 100-mounting frame; 110-connecting plate; 120-first extension rod; 130-second extension rod; 140-fixing rod; 150-motor support; 200-driving motor; 300-connecting rod mechanism; 310-crank; 320-connecting rod; 330-rocker; 400-feeding mechanism; 410-feeding box; 411-feeding port; 412-discharging port; 413-box body; 414-box cover; 415-limiting sleeve; 416-feeding cavity; 420-hole wheel; 421-accommodating groove; 430-linking shaft; 440-transmission assembly; 441-ratchet; 442-pawl; 443-housing; 444-first elastic member; 500-storage box; 5 10-box body; 511-slot; 512-exit; 513-first slot wall; 514-second slot wall; 515-first slot; 516-second slot; 520-box cover; 521-fixed shaft; 522-slideway; 530-clamping piece; 531-slider; 540-second torsion spring; 550-unlocking piece; 551-rotating handle; 552-connecting rope; 560-second elastic piece; 600-punching head; 610-punching rod; 611-pointed head; 612-dropping hole; 613-limiting groove; 620-expanding tongue; 621-protrusion; 630-hinge shaft; 640-holding block; 650-first torsion spring; 651-hanging part; 652-elastic part; 653-holding part. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when in use, 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 operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0045] First embodiment

[0046] Please refer to Figure 1 The embodiment of the present invention provides a hole seeder 10 for performing a sowing operation. The hole seeder 10 can realize continuous and rapid sowing, and can also perform intermittent mechanized seedling replacement, thereby reducing labor costs, and occupies a small space, reduces the land damage area, and ensures the crop yield.

[0047] It should be noted that the hole seeder 10 needs to cooperate with an agricultural machine (not shown) to perform farming operations. The agricultural machine is used to drive the hole seeder 10 to move forward. During this process, the hole seeder 10 can continuously or intermittently perform sowing operations to achieve the functions of rapid sowing or mechanized seedling replacement. Specifically, the agricultural machine can be an unmanned vehicle or a walking device that requires manual operation.

[0048] The hole drill 10 includes a mounting frame 100, a driving motor 200, a connecting rod mechanism 300, a feeding mechanism 400, a material storage box 500 and a hole punching head 600. The driving motor 200 is fixedly mounted on the mounting frame 100 and connected to the connecting rod mechanism 300. The driving motor 200 is used to drive the connecting rod mechanism 300 to move, and the mounting frame 100 is used to connect to the agricultural machine. The connecting rod mechanism 300 is connected to the hole punching head 600, and the hole punching head 600 is arranged at the bottom of the connecting rod mechanism 300. The driving motor 200 is used to drive the hole punching head 600 to rise or fall through the connecting rod mechanism 300. The storage box 500 is connected to the feeding mechanism 400, and the feeding mechanism 400 is connected to the punching head 600. The storage box 500 is used to provide seeds to the feeding mechanism 400. The feeding mechanism 400 can output seeds to the punching head 600 when the punching head 600 descends to break the ground to form a planting hole, so that the seeds pass through the punching head 600 and fall into the planting hole, thereby completing the sowing operation.

[0049] In this embodiment, the connecting rod mechanism 300 is connected to the feeding mechanism 400, the punching head 600 is fixedly connected to the bottom of the feeding mechanism 400, the storage box 500 is fixedly installed on the feeding mechanism 400, and the driving motor 200 is used to drive the punching head 600 to rise or fall through the connecting rod mechanism 300 and the feeding mechanism 400. The feeding mechanism 400 can synchronously drive the punching head 600 to rise or fall during the lifting process to complete the action of breaking the ground to form a planting hole. But it is not limited to this. In other embodiments, the storage box 500 can also be fixedly installed on the connecting rod mechanism 300 or the mounting frame 100, and connected to the feeding mechanism 400 through a connecting pipe to output seeds to the feeding mechanism 400; the feeding mechanism 400 can also be installed on the mounting frame 100, and connected to the punching head 600 through a connecting pipe to output seeds to the punching head 600, thereby realizing the sowing function.

[0050] It is worth noting that since the drive motor 200 is independently controlled, the drive motor 200 can drive the punching head 600 to perform sowing operations through the connecting rod mechanism 300 and the feeding mechanism 400. Therefore, the sowing operation of the hole seeder 10 is not related to the movement of the agricultural machinery, that is, when the agricultural machinery is moving forward, the hole seeder 10 may or may not perform sowing operations, so as to achieve continuous and rapid sowing or intermittent mechanized seedling replacement, reduce labor costs, and the feeding mechanism 400 is connected to the connecting rod mechanism 300, occupies a small space, reduces the area of ​​land damage, and ensures crop yields.

[0051] Please refer to Figure 2 , Figure 3 and Figure 4The feeding mechanism 400 includes a feeding box 410, a seed hole wheel 420, a linkage shaft 430 and a transmission assembly 440. The seed hole wheel 420 is rotatably installed in the feeding box 410, and the seed hole wheel 420 can rotate relative to the feeding box 410. The seed hole wheel 420 is sleeved outside the linkage shaft 430, and is fixedly connected to the linkage shaft 430, and is connected to the transmission assembly 440 through the linkage shaft 430. The transmission assembly 440 is used to drive the seed hole wheel 420 to rotate relative to the feeding box 410 through the linkage shaft 430 to realize the feeding function.

[0052] In the present embodiment, the feed box 410 and the transmission assembly 440 are both connected to the connecting rod mechanism 300, the storage box 500 and the punching head 600 are both connected to the feed box 410, the connecting rod mechanism 300 can drive the storage box 500 and the punching head 600 to rise or fall through the feed box 410, and the connecting rod mechanism 300 can also drive the transmission assembly 440 to rotate relative to the feed box 410 to drive the seed hole wheel 420 to rotate relative to the feed box 410, thereby realizing the feeding function. However, it is not limited to this. In other embodiments, the transmission assembly 440 is a steering engine, and the connecting rod mechanism 300 is no longer connected to the transmission assembly 440. The steering engine can directly drive the seed hole wheel 420 to rotate relative to the feed box 410 through the linkage shaft 430. At this time, the transmission assembly 440 itself is the power source. In the process of the drive motor 200 driving the feed box 410 to rise or fall through the connecting rod mechanism 300, the transmission assembly 440 drives the seed hole wheel 420 to rotate, which can also realize the feeding function.

[0053] Furthermore, the feed box 410 is provided with a feed inlet 411 and a discharge port 412. The storage box 500 is fixedly mounted on the feed box 410 and communicated with the feed inlet 411. The storage box 500 is arranged above the feed inlet 411. The seeds in the storage box 500 can enter the feed box 410 through the feed inlet 411 under the action of gravity to realize the feeding function. The punching head 600 is fixedly connected to the bottom of the feed box 410 and communicated with the discharge port 412. The seeds output by the feeding mechanism 400 can pass through the punching head 600 and fall into the planting hole to complete the sowing operation.

[0054] It should be noted that the circumference of the seed hole wheel 420 is provided with a receiving groove 421, and the seed hole wheel 420 can rotate to a position where the receiving groove 421 is connected to the feed port 411, so that the seeds in the storage box 500 fall into the receiving groove 421 through the feed port 411, thereby facilitating the seed hole wheel 420 to drive the seeds to move relative to the feed box 410. The seed hole wheel 420 can also rotate to a position where the receiving groove 421 is connected to the discharge port 412, so that the seeds in the receiving groove 421 fall into the planting hole through the discharge port 412 and the punching head 600, thereby realizing the sowing or seedling supplementing function.

[0055] Specifically, during the sowing process, first, the seed hole wheel 420 rotates relative to the feed box 410 to a position where the receiving groove 421 is connected to the feed port 411. At this time, the seeds in the storage box 500 fall into the receiving groove 421 under the action of gravity, and the receiving groove 421 is used to limit the seeds; then the seed hole wheel 420 continues to rotate relative to the feed box 410. During this process, the circumferential surface of the seed hole wheel 420 slides with the inner wall of the feed box 410, and the inner wall of the feed box 410 can close the receiving groove 421 to prevent the seeds in the receiving groove 421 from falling out; finally, the seed hole wheel 420 rotates relative to the feed box 410 to a position where the receiving groove 421 is connected to the discharge port 412. At this time, the inner wall of the feed box 410 no longer closes the receiving groove 421, and the seeds in the receiving groove 421 fall out of the discharge port 412 under the action of gravity, and pass through the punching head 600 and fall into the planting hole.

[0056] In this embodiment, the feed port 411 and the discharge port 412 are relatively arranged on the upper and lower sides of the feed box 410 and are coaxially arranged. When the seed hole wheel 420 rotates relative to the feed box 410, the receiving groove 421 first rotates 180 degrees from the position connected with the feed port 411 to the position connected with the discharge port 412 to realize the transportation and falling of seeds; then the receiving groove 421 rotates 180 degrees from the position connected with the discharge port 412 to the position connected with the feed port 411 to complete the reset.

[0057] In this embodiment, the size of the receiving groove 421 matches the size of a seed, that is, only one seed can be contained in the receiving groove 421. In this way, each time the receiving groove 421 rotates to a position connected with the discharge port 412, only one seed falls into the planting hole through the discharge port 412 and the punching head 600, so as to achieve precise sowing, avoid wasting of re-sowing seeds, and reduce sowing costs.

[0058] It should be noted that there are multiple accommodating grooves 421, and multiple accommodating grooves 421 are evenly spaced on the circumference of the seed hole wheel 420. Each accommodating groove 421 is used to hold and transport a seed, so as to improve the sowing efficiency and facilitate rapid sowing. Specifically, the line between a accommodating groove 421 and the midpoint of the seed hole wheel 420 and the line between an adjacent accommodating groove 421 and the midpoint of the seed hole wheel 420 are arranged at a preset angle, that is, each time the seed hole wheel 420 rotates by a preset angle relative to the feed box 410, a seed can be dropped into the planting hole, and the sowing efficiency is high.

[0059] The transmission assembly 440 includes a ratchet 441, a pawl 442, a housing 443 and a first elastic member 444. The linkage shaft 430 passes through the housing 443 and can rotate relative to the housing 443. The housing 443 is connected to the connecting rod mechanism 300. The connecting rod mechanism 300 can drive the housing 443 to rotate relative to the linkage shaft 430, so that the housing 443 rotates relative to the feed box 410. The ratchet 441 is sleeved outside the linkage shaft 430 and is fixedly connected to the linkage shaft 430. The ratchet 441 can drive the linkage shaft 430 to rotate, thereby driving the seed hole wheel 420 to rotate relative to the feed box 410. The pawl 442 is installed in the housing 443 and cooperates with the ratchet 441. The pawl 442 can be displaced under the drive of the housing 443 to drive the ratchet 441 to rotate in the first direction. The pawl 442 can also prevent the ratchet 441 from rotating in the second direction. The first direction is opposite to the second direction. Specifically, one end of the pawl 442 is hinged to the housing 443, and the other end is matched with the ratchet 441. The pawl 442 can rotate relative to the housing 443. The pawl 442 is connected to the housing 443 through a first elastic member 444. The first elastic member 444 is used to apply elastic force to the pawl 442 so that the pawl 442 rotates in a direction close to the ratchet 441, thereby ensuring the matching state of the pawl 442 and the ratchet 441.

[0060] It should be noted that the housing 443 is connected to the connecting rod mechanism 300, and the connecting rod mechanism 300 can drive the housing 443 to swing up and down under the action of the driving motor 200. When the housing 443 swings upward, the housing 443 rotates upward relative to the linkage shaft 430 to drive the pawl 442 to move upward, and the pawl 442 drives the ratchet 441 to rotate along the first direction, thereby driving the seed hole wheel 420 to rotate relative to the feed box 410 along the first direction through the linkage shaft 430. In this process, the first elastic member 444 applies elastic force to the pawl 442 to keep the pawl 442 and the ratchet 441 in a matching state. When the shell 443 swings downward, the shell 443 rotates downward relative to the linkage shaft 430 to drive the pawl 442 to move downward. Due to the matching characteristics of the pawl 442 and the ratchet 441, the pawl 442 will not drive the ratchet 441 to rotate along the second direction, but will overcome the elastic force of the first elastic member 444 and rotate relative to the shell 443 in the direction away from the ratchet 441. During this process, the ratchet 441 will not rotate, and the linkage shaft 430 and the seed hole wheel 420 will not rotate.

[0061] In this embodiment, the maximum angle of the up and down swing of the housing 443 is a preset angle, that is, the housing 443 can first rotate upward by a preset angle relative to the linkage shaft 430 to the first limit position, and then rotate downward by a preset angle relative to the linkage shaft 430 to the second limit position. In the process of the housing 443 rotating from the second limit position to the first limit position, the housing 443 rotates upward by a preset angle, the pawl 442 is displaced upward, the ratchet 441 rotates along the first direction by a preset angle, and the linkage shaft 430 and the seed hole wheel 420 both rotate along the first direction by a preset angle to drop a seed into the planting hole. In the process of the housing 443 rotating from the first limit position to the second limit position, the housing 443 rotates downward by a preset angle, the pawl 442 is displaced downward, and slides over the back side of the teeth of the ratchet 441, the ratchet 441, the linkage shaft 430 and the seed hole wheel 420 will not rotate, and the seed will not fall out. When the housing 443 rotates to the second extreme position, the pawl 442 rotates relative to the housing 443 in the direction close to the ratchet 441 under the elastic force of the first elastic member 444 until the pawl 442 abuts against the tooth surface side of the ratchet 441. At this time, the pawl 442 and the ratchet 441 are matched, making it convenient for the pawl 442 to drive the ratchet 441 to rotate along the first direction next time.

[0062] The feed box 410 includes a box body 413, a box cover 414 and a limiting sleeve 415. The box body 413 and the box cover 414 are detachably connected to facilitate installation and maintenance. The box body 413 and the box cover 414 are combined to form a feed cavity 416, and the seed hole wheel 420 is rotatably arranged in the feed cavity 416. The seed hole wheel 420 can drive the seeds to move in the feed cavity 416 through the accommodating groove 421. The feed port 411 and the discharge port 412 are both opened on the box body 413, and are both connected to the feed cavity 416, so that the seeds can enter the feed cavity 416 through the feed port 411, and the seeds can fall out of the feed cavity 416 through the discharge port 412. The limiting sleeve 415 is fixedly connected to the box body 413 and is connected to the connecting rod mechanism 300 to fix the relative position of the connecting rod mechanism 300 and the feeding box 410 to prevent the feeding box 410 from being displaced relative to the connecting rod mechanism 300 .

[0063] Please refer to Figure 5It is worth noting that the connecting rod mechanism 300 includes a crank 310, a connecting rod 320 and a rocker 330. The crank 310 and the rocker 330 are relatively arranged at the two ends of the mounting frame 100, and both can rotate relative to the mounting frame 100. One end of the crank 310 is connected to the driving motor 200, and the other end is hinged to the connecting rod 320. The connecting rod 320 is fixedly connected to the feeding box 410. The driving motor 200 can drive the crank 310 to rotate relative to the mounting frame 100, so as to drive the connecting rod 320 to move up and down, thereby driving the feeding box 410 to rise or fall, and then driving the storage box 500 and the punching head 600 to rise or fall, so as to realize the punching and sowing functions. The rocker arm 330 is fixedly connected to the housing 443. The rocker arm 330 can rotate relative to the mounting frame 100, and the housing 443 can rotate relative to the feed box 410 to achieve the swing of the rocker arm 330 and the housing 443, so that the operation of the entire connecting rod mechanism 300 is smooth and reliable.

[0064] Furthermore, the crank 310 can rotate 360 ​​degrees relative to the mounting frame 100, and the rocker 330 can rotate a preset angle relative to the mounting frame 100. In the process of the crank 310 rotating one circle relative to the mounting frame 100, the rocker 330 and the housing 443 swing up and down once, and the maximum angle of the up and down swing of the rocker 330 and the housing 443 is a preset angle. Specifically, in the process of the driving motor 200 driving the feeding box 410 to descend through the crank 310 and the connecting rod 320, the linkage shaft 430 is displaced downward with the feeding box 410. During this process, the housing 443 rotates upward relative to the linkage shaft 430, and the rocker 330 rotates downward relative to the mounting frame 100; when the feeding box 410 descends to the lowest position, the housing 443 is located at the first extreme position, and at this time, the position of the connection point between the housing 443 and the linkage shaft 430 is lower than the position of the connection point between the rocker 330 and the mounting frame 100. When the driving motor 200 drives the feeding box 410 to rise via the crank 310 and the connecting rod 320, the linkage shaft 430 is displaced upward along with the feeding box 410. During this process, the housing 443 rotates downward relative to the linkage shaft 430, and the rocker arm 330 rotates upward relative to the mounting frame 100. When the feeding box 410 rises to the highest position, the housing 443 is located at the second extreme position. At this time, the connection point between the housing 443 and the linkage shaft 430 is higher than the connection point between the rocker arm 330 and the mounting frame 100.

[0065] In this embodiment, the limiting sleeve 415 is sleeved outside the connecting rod 320 and fixedly connected to the connecting rod 320 to fix the relative position of the feeding box 410 and the connecting rod 320 to prevent the feeding box 410 from being displaced relative to the connecting rod 320, thereby ensuring stable and reliable operation of the connecting rod mechanism 300.

[0066] Please refer to Figure 6 , Figure 7 , Figure 8 and Fig. 9 The punching head 600 includes a punching rod 610, a hole expanding tongue 620, a hinge shaft 630, a support block 640 and a first torsion spring 650. The punching rod 610 is fixedly connected to the bottom of the feed box 410, and the punching rod 610 is hinged to the hole expanding tongue 620 through the hinge shaft 630. The hole expanding tongue 620 can rotate relative to the punching rod 610 to achieve the hole expanding function. Specifically, the punching rod 610 is provided with a pointed head 611, and the pointed head 611 is used to break the ground to form a planting hole to achieve the punching function. The pointed head 611 is fitted with the hole expanding tongue 620, and the hole expanding tongue 620 can extend into the ground driven by the pointed head 611. The supporting block 640 is fixedly connected to the side of the hole expanding tongue 620 away from the pointed head 611. The supporting block 640 is used to resist the ground when the pointed head 611 breaks the ground, so that the hole expanding tongue 620 can rotate relative to the hole punching rod 610 and separate from the pointed head 611, thereby completing the hole expanding operation.

[0067] It should be noted that the first torsion spring 650 is sleeved on the outside of the hinge shaft 630, one end of the first torsion spring 650 is abutted against the hole expanding tongue 620, and the other end is abutted against the hole punching rod 610, and the first torsion spring 650 is used to drive the hole expanding tongue 620 to rotate in the direction close to the pointed head 611, that is, the first torsion spring 650 can apply elastic force to the hole expanding tongue 620 so that the hole expanding tongue 620 has a movement tendency close to the pointed head 611. In this way, during the process of the punching head 600 descending to punch a hole, the ground applies a supporting force to the hole expanding tongue 620 through the supporting block 640, so as to overcome the elastic force of the first torsion spring 650 and drive the hole expanding tongue 620 to rotate relative to the hole punching rod 610, thereby making the hole expanding tongue 620 open and separate from the pointed head 611, thereby completing the hole expanding operation; during the process of the punching head 600 rising and resetting, the ground no longer applies a supporting force to the supporting block 640. At this time, the hole expanding tongue 620 rotates and resets under the elastic force of the first torsion spring 650, and closes and fits with the pointed head 611, so as to facilitate the next hole punching and expanding operation.

[0068] The first torsion spring 650 includes a hanging portion 651, an elastic portion 652 and a supporting portion 653. The hanging portion 651 is fixedly connected to the supporting portion 653 through the elastic portion 652. In this embodiment, the hanging portion 651, the elastic portion 652 and the supporting portion 653 are integrally formed to improve the connection strength. The elastic portion 652 is sleeved outside the hinge shaft 630 and can rotate relative to the hinge shaft 630. The hanging portion 651 is hung on the hole expansion tongue 620 and is supported by the hole expansion tongue 620. The hole punching rod 610 is provided with a limiting groove 613, and the supporting portion 653 is arranged in the limiting groove 613 and is supported by the inner wall of the limiting groove 613. In this way, the two ends of the first torsion spring 650 are respectively supported on the hole expansion tongue 620 and the hole punching rod 610 to drive the hole expansion tongue 620 to rotate in the direction close to the pointed head 611.

[0069] Furthermore, in the process of the driving motor 200 driving the feed box 410 to descend via the crank 310 and the connecting rod 320, the feed box 410 drives the punching head 600 to descend, during which the pointed portion 611 breaks the ground to form a planting hole, and the hole expanding tongue 620 opens and separates from the pointed portion 611 to complete the hole expanding operation of the planting hole; in the process of the driving motor 200 driving the feed box 410 to rise via the crank 310 and the connecting rod 320, the feed box 410 drives the punching head 600 to rise, and the hole expanding tongue 620 and the pointed portion 611 close and fit together.

[0070] In this embodiment, the hinge shaft 630 is fixedly connected to the punching rod 610, and the hole expansion tongue 620 is installed on the hinge shaft 630 and can rotate relative to the hinge shaft 630 to realize the hinge connection between the hole expansion tongue 620 and the punching rod 610. However, it is not limited to this. In other embodiments, the hinge shaft 630 can be fixedly connected to the hole expansion tongue 620, and the hinge shaft 630 is installed on the punching rod 610 and can rotate relative to the punching rod 610. The hinge shaft 630 can also be rotatably connected to the punching rod 610 and the hole expansion tongue 620 at the same time. The arrangement method of the hinge shaft 630 is not specifically limited.

[0071] It is worth noting that the punching rod 610 is provided with a drop hole 612, which is provided on the pointed part 611. The punching rod 610 is used to limit the falling direction of the seeds. The feeding mechanism 400 is connected with the drop hole 612, and the drop hole 612 is used for the seeds output by the feeding mechanism 400 to pass through so that the seeds fall into the planting hole, thereby completing the sowing operation. Specifically, the punching rod 610 is fixedly connected to the bottom of the box body 413, and the discharge port 412 of the box body 413 is connected with the drop hole 612 of the punching rod 610. The seeds output by the seed hole wheel 420 during the rotation process can pass through the discharge port 412 and the drop hole 612 in sequence and fall into the planting hole.

[0072] In this embodiment, a protrusion 621 is provided on one side of the hole-expanding tongue 620 close to the pointed head 611, and the protrusion 621 is used to extend into the drop hole 612 when the hole-expanding tongue 620 and the pointed head 611 are closed, so as to prevent the soil from blocking the drop hole 612 and facilitate the seeds to fall out of the drop hole 612. Specifically, when the feeding box 410 drives the punching head 600 to rise, the hole-expanding tongue 620 closes and fits with the pointed head 611 under the elastic force of the first torsion spring 650. In this process, the protrusion 621 extends into the drop hole 612 to push off the soil attached to the drop hole 612, so as to prevent the soil from blocking the drop hole 612.

[0073] Please refer to Fig.10 , Fig.11 and Fig.12The storage box 500 includes a box body 510, a box cover 520, a clamping member 530, a second torsion spring 540 and an unlocking member 550. The box body 510 is fixedly connected to the top of the feed box 410, and the box body 510 is used to store seeds. The inner wall of the box body 510 is provided with a plurality of slots 511, and the plurality of slots 511 are extended along the depth direction of the box body 510. The clamping member 530 is movably mounted on the box cover 520, and is clamped with a slot 511 to lock the relative position of the box cover 520 and the box body 510. The bottom of the box body 510 is provided with an outlet 512, and the outlet 512 is communicated with the feeding mechanism 400, and the seeds in the box body 510 can fall into the feeding mechanism 400 through the outlet 512. The box cover 520 is slidably disposed in the box body 510. The box cover 520 is used to press on the seeds. The box cover 520 can slide relative to the box body 510 and is always pressed on the seeds to prevent the seeds from splashing in the box body 510 and ensure that the seeds can smoothly enter the feeding mechanism 400 through the outlet 512. The box cover 520 can slide relative to the box body 510 when the seeds enter the feeding mechanism 400 through the outlet 512, so that the clamping member 530 moves relative to the box cover 520, and disengages from one clamping slot 511 and clamps with the other clamping slot 511, thereby locking the relative position of the box cover 520 and the box body 510 again.

[0074] In this embodiment, the box cover 520 is provided with a fixed shaft 521, and the clamping member 530 is sleeved outside the fixed shaft 521 and can rotate relative to the fixed shaft 521. The fixed shaft 521 is used to limit the clamping member 530 to ensure that the clamping member 530 can rotate relative to the box cover 520.

[0075] It should be noted that the second torsion spring 540 is sleeved on the outside of the fixed shaft 521, one end of the second torsion spring 540 is abutted against the clamping member 530, and the other end is abutted against the box cover 520, and the second torsion spring 540 is used to drive the clamping member 530 to rotate in the direction close to the slot 511, that is, the second torsion spring 540 can apply elastic force to the clamping member 530 so that the clamping member 530 has a movement tendency close to the slot 511.

[0076] The unlocking member 550 is movably mounted on the box cover 520 and connected to the clamping member 530. The unlocking member 550 is used to drive the clamping member 530 to move relative to the box cover 520 so that the clamping member 530 escapes from the card slot 511, thereby releasing the locked state between the box cover 520 and the box body 510, facilitating the box cover 520 to be taken out of the box body 510, and further facilitating the replenishment of seeds into the box body 510. In this embodiment, the unlocking member 550 is used to drive the clamping member 530 to rotate relative to the box cover 520 so that the clamping member 530 escapes from the card slot 511.

[0077] Furthermore, during the operation of the feeding mechanism 400, the seeds in the box 510 are continuously output from the outlet 512 to the feeding mechanism 400. During this process, the number of seeds in the box 510 is getting smaller and smaller, and the height of the seed accumulation is getting lower and lower. Since the box 510 is fixedly connected to the feeding box 410, the box 510 will rise or fall with the feeding box 410, so the seeds in the box 510 will move up and down in the box 510 during the lifting and lowering of the box 510. In this way, the seeds may not be able to fall smoothly into the feeding mechanism 400 under the action of gravity, resulting in the seeds being unable to effectively fall into the planting hole, resulting in a hole phenomenon, affecting the quality of sowing and seedling replacement, and thus affecting the yield of crops. In order to avoid the above situation, in this embodiment, the box cover 520 is slidably arranged in the box 510, and the box cover 520 is used to press the seeds on the bottom of the box 510 to prevent the seeds from moving and splashing in the box 510, so as to ensure that the seeds can smoothly fall into the feeding mechanism 400 from the outlet 512.

[0078] It is worth noting that, in the process of the feeding box 410 driving the box body 510 to rise or fall, if the box cover 520 is not limited, the box cover 520 will slide relative to the box body 510 under the action of inertia, so that the box cover 520 cannot effectively press the seeds to the bottom of the box body 510, affecting the effect of preventing the seeds from splashing. In order to avoid the above situation, in this embodiment, the clamping member 530 installed on the box cover 520 is clamped with the clamping groove 511 opened on the inner wall of the box body 510 to fix the relative position of the box cover 520 and the box body 510, so as to prevent the box cover 520 from sliding up and down relative to the box body 510 when the box body 510 rises or falls.

[0079] During the process of sowing or replanting by the hole seeder 10, the seeds in the box 510 are continuously output to the feeding mechanism 400, causing the height of the seeds in the box 510 to continuously decrease. During this process, the box cover 520 slides downward relative to the box 510 under the action of its own gravity as the height of the seeds decreases, and is always pressed on the seeds. During the process of the box cover 520 sliding downward relative to the box 510, the box cover 520 drives the clamping member 530 to move in the depth direction of the box 510, and the clamping member 530 moves downward with the box cover 520 relative to the box 510. During this process, the clamping member 530 will be clamped with different clamping grooves 511 to prevent the box cover 520 from sliding upward relative to the box 510.

[0080] Specifically, in the process of the box body 510 outputting seeds to the feeding mechanism 400, the box cover 520 is first pressed on the seeds, and the clamping member 530 rotates in the direction close to the slot 511 under the elastic force of the second torsion spring 540, and is clamped with one slot 511; then the seed height decreases, the box cover 520 slides downward relative to the box body 510, and the clamping member 530 rotates relative to the box cover 520 under the resistance force of the side wall of the slot 511, and is separated from the slot 511; then the box cover 520 continues to slide downward relative to the box body 510 until it is completely separated from the slot 511, at which time the side wall of the slot 511 will no longer apply resistance to the clamping member 530, and the clamping member 530 rotates in the direction close to the slot 511 under the elastic force of the second torsion spring 540, and is clamped with the next slot 511. This cycle is repeated until the box cover 520 slides downward to the lowest position.

[0081] In this embodiment, the shape of the card slot 511 is sawtooth-shaped, and the card slot 511 is relatively provided with a first slot wall 513 and a second slot wall 514. The first slot wall 513 and the second slot wall 514 are arranged at a preset angle, and the first slot wall 513 is arranged on a side of the second slot wall 514 close to the outlet 512, that is, the first slot wall 513 is arranged below the second slot wall 514. The first slot wall 513 can apply a resisting force to the clamping member 530 when the box cover 520 slides relative to the box body 510, so that the clamping member 530 moves relative to the box cover 520 and escapes from the card slot 511. The second slot wall 514 is used to limit the clamping member 530 to prevent the clamping member 530 from moving upward, thereby preventing the box cover 520 from sliding upward relative to the box body 510.

[0082] The unlocking member 550 includes a rotating handle 551 and a connecting rope 552. The rotating handle 551 is rotatably mounted on the box cover 520 and is connected to the clamping member 530 via the connecting rope 552. The rotating handle 551 can pull the clamping member 530 via the connecting rope 552 to make the clamping member 530 move relative to the box cover 520, thereby releasing the clamping state between the clamping member 530 and the clamping slot 511, so as to facilitate the removal of the box cover 520 from the box body 510. In this embodiment, the rotating handle 551 is used to pull the clamping member 530 to rotate relative to the box cover 520 via the connecting rope 552, so that the clamping member 530 escapes from the clamping slot 511.

[0083] Specifically, when the box cover 520 is taken out from the box body 510, the rotating handle 551 is manually screwed to rotate the rotating handle 551 relative to the box cover 520. During this process, the connecting rope 552 is wound around the rotating handle 551 to overcome the elastic force of the second torsion spring 540 to pull the clamping member 530 to rotate relative to the box cover 520, so that the clamping member 530 is disengaged from the clamping slot 511. After the box cover 520 is taken out, the rotating handle 551 is no longer screwed. At this time, the clamping member 530 rotates outward relative to the box cover 520 under the elastic force of the second torsion spring 540, so that the rotating handle 551 is pulled back to rotate and reset by the connecting rope 552.

[0084] In this embodiment, the slot 511 includes a first slot 515 and a second slot 516, which are arranged on both sides of the box body 510, and the number of the first slot 515 and the second slot 516 are both multiple. Specifically, the number of the clamping member 530, the fixed shaft 521 and the second torsion spring 540 are both two, each clamping member 530 is rotatably mounted on a fixed shaft 521, each second torsion spring 540 is sleeved outside a fixed shaft 521 and abuts against a clamping member 530, one end of the connecting rope 552 is connected to a clamping member 530, and the other end is connected to another clamping member 530, and the middle part of the connecting rope 552 is sleeved on the rotating handle 551. One clamping member 530 is clamped with one first slot 515, and the other clamping member 530 is clamped with one second slot 516 to ensure the stability of the clamping, and further prevent the box cover 520 from sliding up and down relative to the box body 510.

[0085] Please continue to refer to Figure 5The mounting frame 100 includes a connecting plate 110, a first extension rod 120, a second extension rod 130, a fixing rod 140 and a motor support 150. One end of the fixing rod 140 is fixedly connected to the connecting plate 110 through the first extension rod 120, and the other end of the fixing rod 140 is fixedly connected to the connecting plate 110 through the second extension rod 130, so as to improve the connection strength of the connecting plate 110, the first extension rod 120, the second extension rod 130 and the fixing rod 140. The connecting plate 110 is used to connect with the agricultural machinery, and the agricultural machinery can drive the entire seed drill 10 to move through the connecting plate 110 during the movement. The driving motor 200 is installed on the motor support 150, and the motor support 150 is fixedly connected to the connection between the fixing rod 140 and the first extension rod 120. The driving motor 200 is used to connect with the crank 310 of the connecting rod mechanism 300 to drive the crank 310 to rotate. The fixed rod 140 is connected to the connecting rod mechanism 300, one end of the fixed rod 140 is hinged to the crank 310, and the other end is hinged to the rocker 330. The fixed rod 140, the crank 310, the connecting rod 320 and the rocker 330 are combined to form a crank 310 rocker 330 mechanism to ensure that the connecting rod mechanism 300 can operate stably and drive the feeding mechanism 400 to rise or fall during operation.

[0086] In this embodiment, the connecting plate 110 and the second extension rod 130 are both extended along a preset direction, and the axial direction of the first extension rod 120, the axial direction of the fixing rod 140 and the preset direction are combined to form a triangle to improve the stability of the mounting frame 100 and prevent the mounting frame 100 from deformation or bending.

[0087] It should be noted that the agricultural machine pulls the hole seeder 10 to move forward on the ground so that the hole seeder 10 can perform sowing operations along the moving path. During the operation of the seed drill 10, the driving motor 200 drives the crank 310 to rotate in the same direction to drive the feed box 410 to rise or fall through the connecting rod 320. The feed box 410 simultaneously drives the storage box 500 and the hole punching head 600 to rise or fall. The hole punching head 600 breaks the ground during the descent to achieve the hole punching and hole expansion functions to form a planting hole, and the shell 443 and the rocker 330 continuously swing up and down. During this process, if the shell 443 rotates upward by a preset angle relative to the feed box 410, the shell 443 drives the pawl 442 to move upward so that the ratchet 441 rotates by a preset angle in the first direction, thereby driving the linkage shaft 430 and the seed hole wheel 420 to rotate by a preset angle in the first direction, so that a seed passes through the discharge port 412 and the drop hole 612 in sequence and falls into the planting hole to complete the seeding operation.

[0088] The hole seeder 10 provided in the embodiment of the present invention has a driving motor 200 fixedly mounted on a mounting frame 100 and connected to a connecting rod mechanism 300, which is connected to a hole punching head 600. The driving motor 200 is used to drive the hole punching head 600 to rise or fall through the connecting rod mechanism 300. A storage box 500 is connected to a feeding mechanism 400, which is connected to the hole punching head 600. The storage box 500 is used to provide seeds to the feeding mechanism 400. The feeding mechanism 400 can output seeds to the hole punching head 600 when the hole punching head 600 descends to break the ground to form a planting hole, so that the seeds pass through the hole punching head 600 and fall into the planting hole. Compared with the prior art, the hole seeder 10 provided by the present invention adopts a driving motor 200 connected to the hole punching head 600 through a connecting rod mechanism 300 and a storage box 500 and a hole punching head 600 connected to a feeding mechanism 400. Therefore, it can realize continuous and rapid sowing and intermittent mechanized seedling replacement, thereby reducing labor costs. It also occupies little space, reduces the area of ​​land damage, and ensures crop yields.

[0089] Second embodiment

[0090] Please refer to Fig.13 The embodiment of the present invention provides a seed drill 10. Compared with the first embodiment, the difference of this embodiment is that the connection method between the box cover 520 and the clamping member 530 is different.

[0091] In this embodiment, the box cover 520 is provided with a slide groove 522, and the clamping member 530 is provided with a slider 531, and the slider 531 is slidably arranged in the slide groove 522. The slide groove 522 can limit the slider 531, and the slider 531 can slide relative to the slide groove 522, so that the clamping member 530 slides relative to the box cover 520. Specifically, the extension direction of the slide groove 522 is perpendicular to the depth direction of the box body 510, and the clamping member 530 can slide along the extension direction of the slide groove 522 to achieve the clamping connection with the clamping groove 511 or escape from the clamping groove 511, thereby locking the relative position of the box cover 520 and the box body 510 or releasing the locking state of the box cover 520 and the box body 510.

[0092] It should be noted that the storage box 500 further includes a second elastic member 560, one end of the second elastic member 560 abuts against the clamping member 530, and the other end abuts against the box cover 520, and the second elastic member 560 is used to drive the clamping member 530 to slide in a direction close to the clamping slot 511. The second elastic member 560 can apply elastic force to the clamping member 530, so that the clamping member 530 has a movement tendency close to the clamping slot 511.

[0093] In this embodiment, the unlocking member 550 is movably installed on the box cover 520 and connected to the clamping member 530. The unlocking member 550 is used to drive the clamping member 530 to slide relative to the box cover 520 so that the clamping member 530 escapes from the clamping slot 511, thereby releasing the locking state between the box cover 520 and the box body 510.

[0094] The beneficial effects of the hole seeder 10 provided in the embodiment of the present invention are the same as those of the first embodiment, and will not be described in detail herein.

[0095] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hole seeder, characterized in that: It includes a mounting frame, a driving motor, a connecting rod mechanism, a feeding mechanism, a storage box and a hole punching head, wherein the driving motor is fixedly mounted on the mounting frame and connected to the connecting rod mechanism, the connecting rod mechanism is connected to the hole punching head, the driving motor is used to drive the hole punching head to rise or fall through the connecting rod mechanism, the storage box is connected to the feeding mechanism, the feeding mechanism is connected to the hole punching head, the storage box is used to provide seeds to the feeding mechanism, and the feeding mechanism can output the seeds to the hole punching head when the hole punching head descends to break the ground to form a planting hole, so that the seeds pass through the hole punching head and fall into the planting hole; The connecting rod mechanism is connected to the feeding mechanism, the punching head is fixedly connected to the bottom of the feeding mechanism, the storage box is fixedly installed on the feeding mechanism, and the driving motor is used to drive the punching head to rise or fall through the connecting rod mechanism and the feeding mechanism; The feeding mechanism comprises a feeding box, the feeding box is connected to the connecting rod mechanism, the feeding box is provided with a feeding port and a discharging port, the storage box is fixedly mounted on the feeding box and communicated with the feeding port, the punching head is fixedly connected to the bottom of the feeding box and communicated with the discharging port; The feeding mechanism also includes a seed hole wheel, a linkage shaft and a transmission assembly. The seed hole wheel is rotatably installed in the feeding box and is connected to the transmission assembly through the linkage shaft.

2. The hole drill according to claim 1, characterized in that: A circumferential surface of the seed hole wheel is provided with a receiving groove, and the seed hole wheel can be rotated to a position where the receiving groove is connected to the feed port, so that the seeds in the storage box fall into the receiving groove through the feed port, and the seed hole wheel can also be rotated to a position where the receiving groove is connected to the discharge port, so that the seeds in the receiving groove fall into the planting hole through the discharge port and the punching head.

3. The hole drill according to claim 1, characterized in that: The transmission assembly includes a ratchet, a pawl and a housing. The linkage shaft passes through the housing and can rotate relative to the housing. The housing is connected to the connecting rod mechanism. The ratchet is sleeved outside the linkage shaft and fixedly connected to the linkage shaft. The pawl is installed in the housing and cooperates with the ratchet.

4. The hole drill according to claim 3, characterized in that: The transmission assembly also includes a first elastic member, one end of the pawl is hinged to the housing, and the other end cooperates with the ratchet. The pawl is connected to the housing through the first elastic member, and the first elastic member is used to apply elastic force to the pawl to rotate in a direction close to the ratchet.

5. The hole drill according to claim 3, characterized in that: The connecting rod mechanism includes a crank, a connecting rod and a rocker, the crank and the rocker are relatively arranged at two ends of the mounting frame, and both can rotate relative to the mounting frame, one end of the crank is connected to the driving motor, and the other end is hinged to the connecting rod, the connecting rod is fixedly connected to the feeding box, and the rocker is fixedly connected to the outer shell.

6. The hole drill according to claim 1, characterized in that: The feeding box includes a box body, a box cover and a limiting sleeve. The box body and the box cover are detachably connected and combined to form a feeding cavity. The seed hole wheel is rotatably arranged in the feeding cavity. The feed port and the discharge port are both opened on the box body and are communicated with the feeding cavity. The limiting sleeve is fixedly connected to the box body and is connected to the connecting rod mechanism.

7. The hole drill according to claim 1, characterized in that: The hole punching head includes a hole punching rod, a hole expanding tongue, a hinge shaft and a supporting block. The hole punching rod is hinged to the hole expanding tongue through the hinge shaft. The hole punching rod is provided with a pointed head, and the pointed head is fitted with the hole expanding tongue. The supporting block is fixedly connected to the side of the hole expanding tongue away from the pointed head. The supporting block is used to resist the ground when the pointed head breaks the ground, so that the hole expanding tongue can rotate relative to the hole punching rod and separate from the pointed head to complete the hole expanding operation.

8. The hole drill according to claim 7, characterized in that: The punching head also includes a first torsion spring, which is sleeved outside the hinge shaft. One end of the first torsion spring is abutted against the hole expanding tongue, and the other end is abutted against the hole punching rod. The first torsion spring is used to drive the hole expanding tongue to rotate toward the direction close to the pointed part.

9. The hole drill according to claim 7, characterized in that: The punching rod is penetrated by a drop hole, the feeding mechanism is connected with the drop hole, and the drop hole is used for the seeds output by the feeding mechanism to pass through so that the seeds fall into the planting hole.

10. The hole drill according to claim 1, characterized in that: The storage box includes a box body, a box cover and a clamping piece. The inner wall of the box body is provided with a plurality of clamping grooves, and the plurality of clamping grooves are extended along the depth direction of the box body. The clamping piece is movably installed on the box cover and is clamped with one of the clamping grooves. An outlet is provided at the bottom of the box body, and the outlet is connected with the feeding mechanism. The box cover is slidably arranged in the box body. The box body is used to store the seeds, and the box cover is used to press on the seeds. The box cover can slide relative to the box body when the seeds enter the feeding mechanism through the outlet, so that the clamping piece moves relative to the box cover, and escapes from one of the clamping grooves and is clamped with another of the clamping grooves.

11. The hole drill according to claim 10, characterized in that: The material storage box also includes a second torsion spring, the box cover is provided with a fixed shaft, the clamping piece is sleeved outside the fixed shaft and can rotate relative to the fixed shaft, the second torsion spring is sleeved outside the fixed shaft, one end of the second torsion spring is abutted against the clamping piece, and the other end is abutted against the box cover, and the second torsion spring is used to drive the clamping piece to rotate in a direction close to the slot.

12. The hole drill according to claim 10, characterized in that: The material storage box also includes a second elastic member, the box cover is provided with a slide groove, the clamping member is provided with a slider, and the slider is slidably set in the slide groove, one end of the elastic member is abutted against the clamping member, and the other end is abutted against the box cover, and the elastic member is used to drive the clamping member to slide in the direction close to the slot.

13. The hole drill according to claim 10, characterized in that: The material storage box also includes an unlocking member, which is movably mounted on the box cover and connected to the clamping member. The unlocking member is used to drive the clamping member to move relative to the box cover so that the clamping member can escape from the slot.

14. The hole drill according to claim 13, characterized in that: The unlocking member includes a rotating handle and a connecting rope. The rotating handle is rotatably mounted on the box cover and is connected to the clamping member via the connecting rope. The rotating handle can pull the clamping member via the connecting rope to move the clamping member relative to the box cover.

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