Small simple portable telescopic corn seeder

Abstract

The invention discloses a small, simple, portable and telescopic corn seeder which comprises a seeding box, an insertion pipe, a seed carrying turntable, a seed storage box and a telescopic rod, and supporting plates are symmetrically arranged on the inner wall of the seeding box; the intubation tube comprises a first intubation tube and a second intubation tube arranged on the first intubation tube in a sliding and sleeving mode, and the intubation tube can achieve telescopic transformation of different lengths and is suitable for being used by users of different heights; the peripheral side of the seed carrying turntable is in sliding connection with the supporting plate, a plurality of seed carrying bags are arranged on a disc body, and the seed carrying turntable intermittently and equidistantly rotates through a driving part; a seed pipe of the seed storage box is suspended above the seed carrying bags, so that each seed carrying bag passing through the seed outlet pipe bears one seed; the telescopic rod is arranged below one of the seed carrying bags through the fixing plate, the telescopic end of the telescopic rod extends to eject seeds in the seed carrying bags out, so that the seeds fall into the insertion pipe, precise cooperation of three links of seed taking, seed conveying and seed discharging is achieved, the seeding efficiency and precision are guaranteed, and meanwhile the portability and flexibility of the seeder are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of corn seeding device, and particularly relates to a small, simple, portable and telescopic corn seeder. BACKGROUND

[0002] As one of main grain crops in China, the seeding efficiency and quality of corn directly relate to the agricultural production benefit. The traditional corn seeding mode depends on manual dibbling, and is low in efficiency and high in labor intensity. In addition, the seeding density and depth are difficult to be unified, which affects the emergence rate and later management.

[0003] In order to improve the seeding efficiency, various types of portable corn seeders appear in the market. The corn seeder usually comprises a seed storage tube and a seeding tube. A roller with holes is embedded in the inside of the seed storage tube. A fixed number of seeds are contained in the holes of the roller. The seeding tube can slide along the length direction of the seed storage tube, so that one end of the seeding tube is inserted into the soil. The driving of the seeding tube and the driving of the roller utilize the same driving member, so that the driving of the seeding tube is inserted at the same time as the rotation of the roller. The seeds in the holes are transported into the seeding tube and fall into the soil. However, due to the integrity of the driving member, the seeding tube and the roller, the seeding tube and the seed storage tube are usually fixed in length to adapt to the linkage driving of the driving member to the roller and the seeding tube. Therefore, the structure of the corn seeder is difficult to realize quick disassembly and quick assembly. The corn seeder is inconvenient to carry and is difficult to be used by users with different heights. SUMMARY

[0004] The present application aims to provide a small, simple, portable and telescopic corn seeder, which has better portability and more flexible length adjustment.

[0005] The technical scheme of the present application is as follows. A small, simple, portable and telescopic corn seeder, comprising: a seeding box, provided with a cavity inside and a handle outside, the inner wall of the seeding box is symmetrically provided with a support plate, and the bottom of the seeding box is provided with a discharge pipe communicating with the cavity; a spout pipe, comprising: a first spout pipe, one end of which is threadedly connected with the discharge pipe; a second spout pipe, which is slidably sleeved on the first spout pipe, and a clamping piece is arranged between the first spout pipe and the second spout pipe for clamping and fixing the first spout pipe and the second spout pipe; a seed carrying turntable, which is arranged inside the seeding box, the peripheral side of the seed carrying turntable is slidably connected with the support plate, and a plurality of seed carrying pockets are arranged in a ring array on the seed carrying turntable with the center thereof as the axis, the pocket opening size of the seed carrying pockets is larger than the size of the seeds, and the seed carrying turntable is provided with a driving piece to realize intermittent and equidistant rotation; a seed storage box, provided with a seed outlet pipe at the bottom, the seed outlet pipe extends into the inside of the seeding box and is suspended above the ring array of the seed carrying pockets, and the outlet end of the seed outlet pipe is spaced from the seed carrying turntable by a distance smaller than the size of the seeds; a telescopic rod, which is an electric telescopic rod, the telescopic rod is arranged below one of the seed carrying pockets through a fixed plate, one end of the fixed plate is connected with the inner wall of the seeding box, and the seeds in the seed carrying pocket are ejected by elongating the telescopic end of the telescopic rod.

[0006] Further, the bottom of the seed carrying pocket is provided with an opening, the diameter of the opening is smaller than the particle size of the seeds and larger than the diameter of the telescopic end of the telescopic rod.

[0007] Further, it further comprises a cover body, which is an unsealed ring body, an unsealed section of the cover body is referred to as a discharge section, an unsealed ring groove is formed in the bottom surface of the cover body, an inlet is formed in the top, the inlet communicates with the unsealed ring groove, the seed outlet pipe communicates with the inlet, the cover body is arranged on the seed carrying turntable, and the unsealed ring groove corresponds to the ring array formed by the plurality of seed carrying pockets, so that the seeds pass through the unsealed ring groove when the seed carrying turntable rotates.

[0008] Further, the telescopic rod is arranged in the projection area below the discharge section.

[0009] Further, the clamping piece comprises: two first insertion holes formed in the side surface of the first spout pipe near the other end; a plurality of second insertion holes formed in the two sides of the second spout pipe along the length direction of the second spout pipe; and two fixed plugs arranged in the two first insertion holes respectively, and one end of each of the two fixed plugs can be inserted into the second insertion hole.

[0010] Further, a plurality of steel wires are arranged in the inside of the second spout pipe near the other end, and the plurality of steel wires are arranged in cross.

[0011] Further, the driving member comprises: a driving disc, a driving disc shaft body is arranged at the center, one end of the driving disc shaft body is vertically connected to the top of the seeding box, a limiting disc is arranged at the bottom of the driving disc, the limiting disc is sleeved on the driving disc shaft body, a notch is arranged on the side of the limiting disc, a vertical push rod is arranged on one side of the bottom of the driving disc, a driven disc, a plurality of limiting grooves are arranged on the periphery of the driven disc, the groove surfaces of the plurality of limiting grooves are arc surfaces, and the arc surfaces are matched and fitted with the outer circumferential surface of the limiting disc, a driving groove is arranged in the middle of every two adjacent limiting grooves, the driving groove is arranged from the outer circumferential surface of the driven disc to the center, the diameter of the push rod is smaller than the groove width of the driving groove, a driven disc shaft body is connected to the center of the bottom surface of the driven disc, and the driven disc shaft body is connected to the center of the seed-carrying turntable.

[0012] Further, the device further comprises: a rocker, the rocker comprises: a connecting rod, one end of the connecting rod is a hand-held part, and a sleeve is arranged on the other end of the driving disc shaft body in a sleeving mode through a cross sliding groove structure, and the other end is connected to the side of the other end of the connecting rod.

[0013] Further, the device further comprises: a supporting rod, one end of the supporting rod is connected to the top of the seeding box, and the other end of the supporting rod is provided with a clamping groove for accommodating the connecting rod.

[0014] Further, the controller of the telescopic rod is arranged on the hand-held part.

[0015] Compared with the prior art, the device has the following beneficial effects: 1、The device is characterized in that the spout and the seeding box are arranged in a split mode, and are detachably connected through threads, the seed-carrying turntable arranged in the seeding box cooperates with the telescopic rod to realize quantitative delivery of seeds into the spout, the seeding box and the spout do not affect each other, can be quickly disassembled and assembled, have better portability, the spout is sleeved with the first spout and the second spout in a sliding mode, and is fixed through cooperation of the fixed plug and the spout hole, the length of the seeder is steplessly or segmentally adjusted, can be flexibly adapted to operation of users with different heights and different seeding depth requirements, and the applicability and portability of the product are greatly improved.

[0016] 2、The bottom of the seed-carrying pocket on the seed-carrying turntable is provided with an opening with a diameter smaller than that of the seeds and greater than that of the telescopic end of the telescopic rod, so that the telescopic rod can directly act on the seeds and push the seeds upward to be separated from the seed-carrying pocket and fall into the spout, the seed delivery path is more direct and reliable, the problem of jamming or damage of the seeds in the transfer process caused by the existing roller rotation mode is avoided, and accurate quantitative seeding is realized.

[0017] 3、The application is provided with an unsealed annular cover on the load rotary disc, and the unsealed annular groove forms a guide channel, which can accurately guide the seeds to the seed loading pocket and prevent the seeds from scattering or being taken to the wrong position when the rotary disc rotates, thus ensuring that only one seed enters the pocket each time, improving the accuracy and reliability of the sowing.

[0018] 4、The application is provided with a plurality of intersecting steel wires inside the second cannula end, which can effectively loosen the soil at the cannula tip when the cannula is inserted into the soil and rotated, so that the seeds can be slightly covered after falling into the soil, simulating the effect of post-sowing soil covering, which is beneficial to the germination and growth of the seeds. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the overall structure of the application.

[0020] Figure 2 It is a sectional view of the cannula structure of the application.

[0021] Figure 3 It is a structure schematic view of the sowing box, seed storage box and driving member of the application.

[0022] Figure 4 It is a structure schematic view of the seed loading rotary disc of the application.

[0023] Figure 5 It is a top view of the seed loading rotary disc structure of the application. Figure 4

[0024] Figure 6 It is a top view of the cover structure of the application.

[0025] Figure 7 It is a top view of the position relationship diagram of the cover, seed loading rotary disc and supporting plate inside the sowing box of the application.

[0026] Figure 8 It is a structure schematic view of the fixed plate and telescopic rod of the application.

[0027] Figure 9 It is a top view of the structure schematic view of the driving disc and driven disc of the application.

[0028] Figure 10 It is a top view of the structure schematic view of the rocker of the application.

[0029] ​Wherein, 1, seeding box, 11, support plate, 12, handle, 2, insertion tube, 21, first insertion tube, 211, first insertion hole, 22, second insertion tube, 221, second insertion hole, 222, steel wire, 23, fixed plug, 3, seed storage box, 4, seed loading turntable, 41, seed loading pocket, 5, cover body, 51, unsealed annular channel, 52, discharge section, 53, feeding port, 6, fixed plate, 61, telescopic rod, 7, driving piece, 71, driven disc, 711, limiting groove, 712, driving groove, 713, driven disc shaft body, 72, driving disc, 721, lever, 722, limiting disc, 723, driving disc shaft body, 73, rocker, 731, connecting rod, 732, sleeve, 733, hand-held part, 74, support rod, 8, seed. DETAILED DESCRIPTION

[0030] The specific embodiments of the present application will be described in detail below. Figures 1 to 10 In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; in the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0032] It should be noted that the circuit connections involved in the present application all adopt conventional circuit connection methods and do not involve any innovation.

[0033] EMBODIMENT As shown in Figure 1 , Figure 2 and Figure 3 , a small, simple and portable telescopic corn seeder comprises a seeding box 1, an insertion tube 2, a seed loading turntable 4, a seed storage box 3 and a telescopic rod 61. The inside of the seeding box 1 is provided with a cavity, and the outside is provided with a handle 12. Symmetrical support plates 11 are provided on the inner wall of the seeding box 1. As shown in Figure 7 , the width of the support plate 11 is designed to be narrow in order to provide sufficient channel space for the seeds 8 on the seed loading turntable 4 to enter the insertion tube 2. The bottom of the seeding box 1 is provided with a discharge pipe communicating with the cavity; as shown in Figure 2As shown, the insertion tube 2 comprises: a first insertion tube 21 and a second insertion tube 22, one end of the first insertion tube 21 is threadedly connected with the discharge pipe, realizing the detachable connection of the insertion tube 2 and the seeding box 1; the second insertion tube 22 is slidably sleeved on the first insertion tube 21, and a clamping member is arranged between the first insertion tube 21 and the second insertion tube 22 for clamping and fixing the first insertion tube 21 and the second insertion tube 22, through the movement of the second insertion tube 22, cooperating with the clamping and fixing of the clamping member, so that the insertion tube 2 can realize the telescopic transformation of different lengths, suitable for users of different heights; the seed carrying turntable 4 is arranged inside the seeding box 1, the peripheral side of the seed carrying turntable 4 is slidably connected with one end of the supporting plate 11, and a plurality of seed carrying pockets 41 are arranged in a ring array on the seed carrying turntable 4 with the center as the axis, the pocket opening size of the seed carrying pocket 41 is larger than the size of the seed 8, the seed carrying turntable 4 is provided with a driving member 7 to realize intermittent equidistant rotation, and the seed carrying pocket 41 is made of rubber material; the seed storage box 3 is provided with a seed discharge pipe at the bottom, the seed discharge pipe extends into the inside of the seeding box 1 and is suspended above the ring array of the seed carrying pockets 41, the outlet end of the seed discharge pipe is smaller than the size of the seed 8 at the spacing of the seed carrying turntable 4, through the rotation of the seed carrying turntable 4, so that each seed carrying pocket 41 passing through the seed discharge pipe carries a seed 8; the telescopic rod 61 is an electric control telescopic rod, the telescopic rod 61 is arranged below one of the seed carrying pockets 41 through the fixing plate 6, one end of the fixing plate 6 is connected with the inner wall of the seeding box 1, through the extension of the telescopic end of the telescopic rod 61, the seed 8 in the seed carrying pocket 41 is ejected, so that the seed 8 falls into the insertion tube 2.

[0034] As shown in Figure 4 , the bottom of the seed carrying pocket 41 is provided with an opening, the diameter of the opening is smaller than the particle size of the seed 8 and larger than the diameter of the telescopic end of the telescopic rod 61, so that the telescopic end of the telescopic rod 61 directly ejects the seed 8 through the opening, it is worth noting that in order to prevent the telescopic rod 61 from damaging the seed 8, a rubber pad is arranged on the telescopic end of the telescopic rod 61, and the rubber pad can be provided with an inclined surface, so that the ejected seed 8 of the seed carrying pocket 41 slides along the inclined surface and falls into the insertion tube 2.

[0035] As shown in Figure 3 , Figure 6 and Figure 7 , it also includes a cover 5, which is an open ring body, the open section of the cover 5 is called a discharge section 52, the bottom surface of the cover 5 is provided with an open ring groove 51, the top is provided with a feeding port 53, the feeding port 53 and the open ring groove 51 are communicated, the seed discharge pipe and the feeding port 53 are communicated, the cover 5 is arranged on the seed carrying turntable 4, and the open ring groove 51 and the ring array formed by the plurality of seed carrying pockets 41 are in ring correspondence, so that when the seed carrying turntable 4 rotates, the seed 8 passes through the open ring groove 51, the telescopic rod 61 is arranged in the projection area below the discharge section 52, when the seed carrying pocket 41 rotates to the position of the discharge section 52, the seed 8 is ejected from the seed carrying pocket 41 through the telescopic rod 61 below and falls into the insertion tube 2.

[0036] As shown in Figure 2 , the engaging member includes two first insertion holes 211, a plurality of second insertion holes 221 and two fixed plugs 23, the two first insertion holes 211 are opened on the side of the first insertion tube 21 near the other end; the plurality of second insertion holes 221 are divided into two columns, and are opened on the side of the second insertion tube 22 along the length direction of the second insertion tube 22; the two fixed plugs 23 are respectively arranged in the two first insertion holes 211, and one end of the two fixed plugs 23 can be inserted into the second insertion hole 221 to move the second insertion tube 22 in the first insertion tube 21, after adjusting the length of the insertion tube 2, aligning the first insertion hole 211 and the second insertion hole 221 on the second insertion tube 22, inserting the fixed plug 23 into the first insertion hole 211 and the second insertion hole 221 to complete the fixation of the first insertion tube 21 and the second insertion tube 22.

[0037] As shown in Figure 2 , the inside of the second insertion tube 22 is provided with a plurality of steel wires 222 near the other end, and the plurality of steel wires 222 are cross arranged, after the second insertion tube 22 is inserted into the soil, the manual rotating device is rotated to rotate the second insertion tube 22 in the soil, the soil is loosened by the plurality of cross arranged steel wires 222, and at the same time of loosening, the seeds 8 are dropped and stirred into the loosened soil.

[0038] As shown in Figure 1 and Figure 9 , the driving member 7 includes a driving disc 72 and a driven disc 71, the center of the driving disc 72 is provided with a driving disc shaft body 723, one end of the driving disc shaft body 723 is vertically connected to the top of the seeding box 1; the bottom of the driving disc 72 is provided with a limiting disc 722, the limiting disc 722 is sleeved on the driving disc shaft body 723, and the circumferential side of the limiting disc 722 is provided with a notch for the driven disc 71 to pass through; the bottom of the driving disc 72 is provided with a vertical lever 721 on one side of the limiting disc 722; a plurality of limiting grooves 711 are opened on the circumferential side of the driven disc 71, the groove faces of the plurality of limiting grooves 711 are all arc faces, and are matched and fitted with the outer circumferential face of the limiting disc 722, a driving groove 712 is arranged between every two adjacent limiting grooves 711, the driving groove 712 is opened from the outer circumferential face to the center of the driven disc 71, and the driven disc shaft body 713 at the bottom of the driven disc 71 is connected with the center of the seed carrying disc 4, the diameter of the lever 721 is smaller than the groove width of the driving groove 712, as shown in Figure 9 , the driving disc 72 is rotated, the limiting disc 722 is rotated in one of the limiting grooves 711, when the lever 721 enters the driving groove 712, the lever 721 drives the driven disc 71 to rotate due to the rotation of the driving disc 72, the driven disc 71 passes through the notch of the driving disc 72, and the limiting disc 722 enters the next limiting groove 711 to realize the rotation of a fixed angle, so that the seed carrying disc 4 completes the rotation of a fixed angle, as shown in Figure 7As shown, the seed loading carousel 4 of the embodiment has three seed loading pockets 41 in the region of the discharge section 52, and as shown Figure 8 As shown, the telescopic rods 61 are also arranged in three, and during seeding, the angle of one rotation of the seed loading carousel 4 can make the multiple seed loading pockets 41 arranged thereon enter the region of the discharge section 52 in three groups in sequence, and the material is discharged through the driving of the telescopic rods 61. In actual use, the quantity seeding can be realized in 1-3 seeds 8 according to the quantity of seeds 8 needed to be seeded, for example, one telescopic rod 61 is driven to extend, i.e. one seed 8 is seeded, and two telescopic rods 61 are driven to extend, i.e. two seeds 8 are seeded.

[0039] As shown Figure 1 and Figure 10 As shown, the rocker 73 comprises a connecting rod 731 and a sleeve 732, one end of the connecting rod 731 is a hand-held portion 733, and the other end of the sleeve 732 is slidably sleeved on the other end of the driving disc shaft body 723 through a cross slot structure, and the other end is connected to the side surface of the other end of the connecting rod 731. The controller of the telescopic rod 61 is arranged on the hand-held portion 733. It is convenient to control the telescopic rod 61, and it is worth noting that the electric telescopic rod and the control elements contained therein can be directly purchased, and the arrangement and use method of the control elements are prior art means.

[0040] As shown Figure 1 and Figure 10 As shown, the support rod 74 is connected to the top of the seeding box 1 at one end, and the other end is provided with a clamping groove for accommodating the connecting rod 731, and the sleeve 732 slides on the driving disc shaft body 723 through a cross slot structure, and it is worth noting that the cross slot structure comprises four sliding grooves arranged on the inner wall of the sleeve 732 in the length direction and four sliding strips arranged on the outer wall of the driving disc shaft body 723, each sliding strip is correspondingly arranged in the four sliding grooves to enable the sleeve 732 to rotate synchronously with the driving disc shaft body 723, and the sleeve 732 can slide along the length direction of the driving disc shaft body 723. During use, the hand-held portion 733 is held, the sleeve 732 is moved upward from the driving disc shaft body 723 to make the connecting rod 731 come out of the clamping groove of the support rod 74, at this time, the driving disc 72 can be rotated by rotating the rocker 73 to make the driving disc 72 rotate, and it is worth noting that the rocker 73 rotates one circle to return to the top of the support rod 74, which can make the driving disc 72 rotate 360° and make the driven disc 71 rotate a fixed angle, at this time, the connecting rod 731 is clamped into the clamping groove to prevent the rocker 73 from rotating by itself.

[0041] The above disclosure is only the preferred specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by those skilled in the art shall fall within the protection scope of the present application.

Claims

1. A small, simple, portable, and retractable corn planter, characterized in that, include: The seeding box (1) has an internal cavity. Support plates (11) are symmetrically arranged on the inner wall of the seeding box (1). The bottom of the seeding box (1) is provided with a discharge pipe that communicates with the cavity. The insertion tube (2) includes: a first insertion tube (21), one end of which is threadedly connected to the discharge tube; The second insertion tube (22) is slidably sleeved on the first insertion tube (21), and a locking member is provided between the first insertion tube (21) and the second insertion tube (22) for locking and fixing the first insertion tube (21) and the second insertion tube (22); The seeding turntable (4) is set inside the seeding box (1). The periphery of the seeding turntable (4) is slidably connected to the support plate (11). Multiple seeding pockets (41) are arranged in a ring array with the center of the seeding turntable (4) as the axis. The size of the opening of the seeding pocket (41) is larger than the size of the seed (8). The seeding turntable (4) is equipped with a driving component (7) to realize intermittent equidistant rotation. The seed storage box (3) has a seed outlet tube at the bottom. The seed outlet tube extends into the sowing box (1) and is suspended above the seed carriers (41) arranged in a ring array. The distance between the outlet end of the seed outlet tube and the seed carrier turntable (4) is smaller than the size of the seed (8). The telescopic rod (61) is an electric telescopic rod. The telescopic rod (61) is set below one of the seed bags (41) by a fixing plate (6). One end of the fixing plate (6) is connected to the inner wall of the seed box (1). The seeds (8) in the seed bag (41) are pushed out by the extension of the telescopic end of the telescopic rod (61).

2. The small, simple, portable, and retractable corn planter according to claim 1, characterized in that, The bottom of the seed carrier (41) has an opening, the diameter of which is smaller than the particle size of the seed (8) and larger than the diameter of the telescopic end of the telescopic rod (61).

3. The small, simple, portable, and retractable corn planter according to claim 1, characterized in that, It also includes a cover (5), an unclosed annular body, the unclosed section of which is called the discharge section (52). The bottom surface of the cover (5) is provided with an unclosed annular channel (51), and the top is provided with a feed inlet (53). The feed inlet (53) and the unclosed annular channel (51) are connected. The seed outlet tube is connected to the feed inlet (53). The cover (5) is placed on the seed-carrying turntable (4), and the unclosed annular channel (51) and the annular array formed by multiple seed-carrying pods (41) correspond to each other in annularly, so that when the seed-carrying turntable (4) rotates, the seeds (8) pass through the unclosed annular channel (51).

4. A small, simple, portable, and retractable corn planter according to claim 3, characterized in that, The telescopic rod (61) is located in the lower projection area of ​​the discharge section (52).

5. A small, simple, portable, and retractable corn planter according to claim 1, characterized in that, The locking component includes: two first insertion holes (211) on the side of the first insertion tube (21) near the other end; a plurality of second insertion holes (221) on both sides of the second insertion tube (22) along the length direction of the second insertion tube (22); and two fixing plugs (23) respectively disposed in the two first insertion holes (211), and one end of each of the two fixing plugs (23) can be inserted into the second insertion hole (221).

6. A small, simple, portable, and retractable corn planter according to claim 1, characterized in that, The second insertion tube (22) has multiple steel wires (222) located near the other end inside, and the multiple steel wires (222) are arranged in a cross pattern.

7. A small, simple, portable, and retractable corn planter according to claim 1, characterized in that, The driving component (7) includes: An active disc (72) has an active disc shaft (723) at its center, one end of which is vertically connected to the top of the seeding box (1); a limiting disc (722) is provided at the bottom of the active disc (72), and a notch is provided on the side of the limiting disc (722), which is sleeved on the active disc shaft (723); a vertical lever (721) is provided at the bottom of the active disc (72) on one side of the limiting disc (722). The driven disk (71) has multiple limiting grooves (711) on its periphery. The groove surfaces of the multiple limiting grooves (711) are all arc-shaped and match the outer periphery of the limiting disk (722). A driving groove (712) is provided between every two adjacent limiting grooves (711). The driving groove (712) is opened from the outer periphery of the driven disk (71) to its center. The diameter of the lever (721) is smaller than the groove width of the driving groove (712). The center of the bottom surface of the driven disk (71) is connected to the driven disk shaft (713). The driven disk shaft (713) is connected to the center of the seed-carrying turntable (4).

8. A small, simple, portable, and retractable corn planter according to claim 7, characterized in that, Also includes: The joystick (73) includes: a connecting rod (731) with one end being a handheld part (733); The sleeve (732) is slidably fitted at one end onto the other end of the active disc shaft (723) via a cross groove structure, and the other end is connected to the side of the other end of the connecting rod (731).

9. A small, simple, portable, and retractable corn planter according to claim 8, characterized in that, Also includes: The support rod (74) is connected to the top of the seed box (1) at one end and has a groove at the other end for accommodating the connecting rod (731).

10. A small, simple, portable, and retractable corn planter according to claim 8, characterized in that, The controller for the telescopic rod (61) is located on the handheld part (733).

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