Hand seeder with adjustable seeding depth and spacing

Abstract

The utility model discloses a kind of adjustable seeding depth and spacing manual seeding device, wherein, adjustable seeding depth manual seeding device includes: gyro wheel;Separation component, separation component is connected with gyro wheel, separation component is configured to separate tea seed, separation component has oppositely arranged feed part and discharge part, feed part is located in the upper portion of separation component, and discharge part is located in the lower portion of separation component;Receiving tank, receiving tank is configured to accommodate tea seed to be separated, receiving tank is set in the upper portion of separation component, and the discharge end of receiving tank and feed part are communicated;Seeding component, seeding component includes first seeding pipe and second seeding pipe, one end of first seeding pipe is set in the lower portion of separation component, and first seeding pipe is communicated with discharge part, and second seeding pipe is slidably connected with first seeding pipe, to make the seeding depth of second seeding pipe adjustable. The technical scheme is beneficial to adjust seeding depth.

Description

Technical Field

[0001] This utility model relates to the field of tea cultivation, and in particular to a manual seeder with adjustable sowing depth and spacing. Background Technology

[0002] As a vital global economic crop, the standardization and refinement of tea cultivation directly impact its yield and quality. In large-scale tea plantation, sowing is the primary and crucial step. Currently, in vast tea-producing areas, especially in mountainous regions with complex terrain, manual sowing remains the dominant method.

[0003] Because tea seed sowing depth requirements vary depending on the tea variety and soil characteristics (e.g., soil water retention and aeration), adjustments need to be made accordingly. Since sowing relies on experience, controlling the sowing depth is difficult. Sowing too deep makes it difficult for the embryo to emerge from the soil, resulting in a sharp drop in germination rate. If the seeds are not covered, exposed tea seeds are pecked by birds. Sowing too shallowly allows the tea seeds to dry out easily, also affecting germination. Utility Model Content

[0004] The main purpose of this invention is to propose a manual seeder with adjustable seeding depth, which addresses the technical problem of difficulty in controlling seeding depth.

[0005] To achieve the above objectives, the present invention proposes a manual seeder with adjustable seeding depth, comprising: The adjustable seeding depth manual seeder includes: Roller; A separating component connected to the roller, the separating component being configured to separate tea seeds, the separating component having an inlet and an outlet disposed opposite to each other, the inlet being located at the upper part of the separating component and the outlet being located at the lower part of the separating component; A receiving tank is configured to hold tea seeds to be separated. The receiving tank is located on the upper part of the separating assembly, and the discharge end of the receiving tank is connected to the feeding part. The seeding assembly includes a first seeding tube and a second seeding tube. One end of the first seeding tube is disposed at the lower part of the separation assembly and is connected to the discharge part. The second seeding tube is slidably engaged with the first seeding tube so that the seeding depth of the second seeding tube is adjustable.

[0006] Optionally, the second seeding tube has a triangular cross-section and a apex angle facing the direction of travel of the roller, the apex angle being parallel to the direction of travel of the roller.

[0007] Optionally, the peripheral wall of the second seeding tube is provided with positioning holes, and there are multiple positioning holes, which are arranged at intervals along the length of the second seeding tube. The first seeding tube has a fixing hole on its peripheral wall so that when the second seeding tube slides along the first seeding tube, the positioning hole can be directly opposite the fixing hole. An adjusting member, which is used to pass through the fixing hole and engage with the positioning hole.

[0008] Optionally, the first seeding tube is sleeved on the second seeding tube.

[0009] In some examples, an adjustable seeding spacing manual seeder is also proposed, comprising a handle and an adjustable seeding depth manual seeder, wherein the handle is fixedly connected to a detachable component of the adjustable seeding depth manual seeder, the detachable component of the adjustable seeding depth manual seeder comprising: A separating shaft is provided, one end of which is fixedly connected to the roller of the manual seeder with adjustable seeding depth. The axis of the separating shaft coincides with the axis of the roller. The separating shaft includes a separating part, and a first separating groove and a second separating groove are provided on the circumferential surface of the separating part. The first separating groove and the second separating groove are arranged at intervals along the axial direction of the separating shaft. There are two second separating grooves, which are arranged at intervals along the circumferential direction of the separating part. The mounting cylinder includes a separating cylinder, which is sleeved on the separating part. The upper and lower sides of the separating cylinder have a feeding part and a discharging part, respectively. The feeding part and the discharging part are connected to the internal space and the external space of the separating cylinder. The separating cylinder is rotatably connected to the separating part so that the separating part has a material taking state and a material unloading state. In the material-taking state, the first separation trough is directly opposite the feeding section, allowing tea seeds to be sown to enter the first separation trough. In the material-unloading state, the first separation trough is directly opposite the discharge section, allowing tea seeds in the first separation trough to exit the first separation trough and be sown onto the soil via the sowing component. Alternatively, in the material-taking state, the second separation trough is directly opposite the feeding section, allowing tea seeds to be sown to enter the second separation trough. In the material-unloading state, the second separation trough is directly opposite the discharge section, allowing tea seeds in the second separation trough to exit the second separation trough and be sown onto the soil via the sowing component. The separating cylinder can be slidably connected along the axial direction of the separating part, so that the separating shaft has a first material separating state and a second material separating state. In the first material separating state, the first separating groove is directly opposite to the discharge part, and the second separating groove is offset from the discharge part. In the second material separating state, the first separating groove is offset from the discharge part, and the second separating groove is directly opposite to the discharge part.

[0010] Optionally, the manual seeder with adjustable seeding spacing also includes a limiting component; The separating shaft also includes a positioning part connected to the separating part. The peripheral wall of the positioning part is provided with a first positioning groove and a second positioning groove. The first positioning groove and the second positioning groove both extend along the circumferential direction of the positioning part and are arranged at intervals along the axial direction of the positioning part. The mounting cylinder further includes a positioning cylinder connected to the separating cylinder. The positioning cylinder is sleeved on the positioning part, and the limiting component is disposed on the positioning cylinder. The positioning cylinder can slide along the axial direction of the positioning part so that in the first material distribution state, the limiting component slides with the first positioning groove, and in the second material distribution state, the limiting component slides with the second positioning groove.

[0011] Optionally, the limiting assembly includes an assembly cylinder, a ball bearing, and a spring; The assembly cylinder has an opening at one end, the assembly cylinder is disposed on the positioning cylinder, the opening of the assembly cylinder faces the positioning part, the spring is disposed in the assembly cylinder, the ball is disposed in the assembly cylinder and located at the end of the spring near the opening, and the ball abuts against the spring. The ball bearing is used to slide in the first or second positioning groove.

[0012] Optionally, the first positioning groove has a first concave arc surface, which transitions arc-shaped from the bottom of the first positioning groove along the edge of the first positioning groove; and / or The second positioning groove has a second concave arc surface, which transitions in an arc shape from the bottom of the second positioning groove along the edge of the first positioning groove.

[0013] Optionally, the positioning cylinder has a snap-fit ​​groove at one end away from the separating cylinder, and the assembly cylinder is detachably mounted in the snap-fit ​​groove.

[0014] Optionally, the two opposite groove walls of the snap-fit ​​groove are provided with snap-fit ​​slots; The assembly cylinder has a retaining rib corresponding to the retaining groove, and the retaining rib engages with the retaining groove.

[0015] This utility model relates to a manual seeder with adjustable sowing depth. A separating component is connected to a roller, the discharge end of the receiving tank is connected to the inlet of the sorting component, one end of the first sowing tube is connected to the discharge end, and the other end slides into a second sowing tube. This allows tea seeds in the receiving tank to enter the separating component, where a large number of seeds are separated into individual seeds, which are then sown through the second sowing tube. Because the second sowing tube slides into the soil, the depth of the second sowing tube is adjustable, allowing for adjustment of the sowing depth as needed. Since the roller and separating component are connected, and the first sowing tube is connected to the separating component, with the second separating tube positioned above the first separating tube, the depth of the second separating tube inserted into the soil remains constant as the roller rolls on the land to be sown, enabling adjustment of the sowing depth as required. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a structural schematic diagram of the manual seeder with adjustable seeding depth and spacing according to this utility model from one perspective. Figure 2 for Figure 1 A magnified view of a section at point I; Figure 3 This is a structural schematic diagram of the manual seeder with adjustable seeding depth and spacing, from another perspective. Figure 4 This is an exploded structural diagram of the manual seeder with adjustable sowing depth and spacing according to the present invention. Figure 5 This is a schematic diagram of the mounting cylinder of the manual seeder with adjustable sowing depth and spacing according to this utility model. Figure 6 This is a schematic diagram of the mounting cylinder from another perspective of the manual seeder with adjustable sowing depth and spacing according to this utility model. Figure 7 This is a schematic diagram of the rollers and separating shaft of the manual seeder with adjustable sowing depth and spacing according to this utility model. Figure 8 This is a schematic diagram of the sowing component structure of the manual seeder with adjustable sowing depth and spacing according to this utility model.

[0017] Explanation of icon numbers: The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] This utility model mainly proposes a manual seeder with adjustable sowing depth, which is mainly used for tea seed sowing. Different sowing depths are set according to different tea seeds and soil. Before sowing, the soil is loosened, crushed, and leveled to prepare for sowing.

[0022] This invention proposes a manual seeder with adjustable seeding depth.

[0023] In the embodiments of this utility model, such as Figures 1 to 8 As shown, the adjustable seeding depth manual seeder includes: Roller 1; Separation component 2, which is connected to roller 1, is configured to separate tea seeds. Separation component 2 has a feed section 2211 and a discharge section 2212 that are arranged opposite to each other. The feed section 2211 is located at the upper part of separation component 2, and the discharge section 2212 is located at the lower part of separation component 2. The container 3 is configured to hold tea seeds to be separated. The container 3 is located on the upper part of the separation component 2. The discharge end of the container 3 is connected to the feed part 2211. The sowing component 4 includes a first sowing tube 41 and a second sowing tube 42. One end of the first sowing tube 41 is disposed at the lower part of the separation component 2 and is connected to the discharge part 2212. The second sowing tube 42 is slidably engaged with the first sowing tube 41 so that the sowing depth of the second sowing tube 42 is adjustable.

[0024] In some examples, the number of rollers 1 can be two or one. For example, when there is one roller 1, the separation component 2 is located on one side of the roller 1 and connected to the middle of the roller 1. When there are two rollers 1, the separation component 2 is located between the two rollers 1 and connected to the middle of the two rollers 1.

[0025] Separation component 2 is used to separate tea seeds. Separation component 2 includes a separation shaft 21 and a separation cylinder 221. The separation shaft 21 is positioned between two rollers 1, and both ends are fixedly connected to the two rollers 1 respectively. Simultaneously, the axis of the separation shaft 21 coincides with the axis of the rollers 1. Separation grooves are formed on the peripheral wall of the separation shaft 21. The size of the separation grooves can be set according to the size of the tea seeds, for example... Slightly larger than a single tea seed, but smaller than two tea seeds, to prevent two tea seeds from entering the separation chamber.

[0026] The separating cylinder 221 is sleeved on the separating shaft 21, and the upper and lower parts of the separating cylinder 221 are respectively provided with a feeding part 2211 and a discharging part 2212. Both the feeding part 2211 and the discharging part 2212 can be holes, grooves, channels, etc., and both the feeding part 2211 and the discharging part 2212 are connected to the internal space and the external space of the separating cylinder 221. The feeding part 2211 and the discharging part 2212 are arranged opposite each other so that when the separating shaft 21 rotates, the separating groove can be directly opposite the feeding part 2211 and the discharging part 2212 respectively. In addition, after the separating cylinder 221 is sleeved on the separating shaft 21, the distance between the inner wall of the separating cylinder 221 and the outer wall of the separating shaft 21 is less than the thickness of the tea seeds, so as to prevent the tea seeds from entering the gap between the separating cylinder 221 and the separating shaft 21. When the separation assembly 2 is working, the separation shaft 21 rotates with the rotation of the roller 1. When the separation tank is directly opposite the feeding part 2211, the tea seeds enter the separation tank through the feeding part 2211. The tea seeds rotate with the separation shaft 21. When the separation tank is directly opposite the discharge part 2212, the tea seeds can enter the separation part 211 from the separation tank.

[0027] The container 3 is used to hold tea seeds. Its specific shape is not limited, but the lower part of its interior is funnel-shaped (narrower at the bottom and wider at the top) to allow the tea seeds to move downwards under their own weight. Since the feeding section 2211 is located above the separating component 2, the container 3 is positioned above and connected to the feeding section 2211, allowing the tea seeds in the container 3 to enter the feeding section 2211 under their own weight.

[0028] Both the first sowing tube 41 and the second sowing tube 42 are open at both ends, allowing the tea seeds to be sown onto the ground when they enter the discharge section 2212. The first sowing tube 41 and the second sowing tube 42 are slidably fitted together, allowing one end of the second sowing tube 42 to be inserted into the first sowing tube 42, thus enabling the first and second sowing tubes 41 and 42 to extend and retract. The first sowing tube 41 and the second sowing tube 42 can maintain their positions through friction. Alternatively, the first and second sowing tubes 41 and 42 can be made of iron pipes, and a magnet can be used to attract the second sowing tube 42 to the first sowing tube 41, thereby maintaining their relative positions. A rubber ring can also be provided on the peripheral wall of the second sowing tube 42, and friction between the rubber ring and the inner wall of the first sowing tube 41 can prevent relative movement between the first and second sowing tubes 41.

[0029] This utility model relates to a manual seeder with adjustable sowing depth. A separating component 2 is connected to a roller 1. The discharge end of the receiving tank 3 is connected to the feeding section 2211 of the sorting component. One end of the first sowing tube 41 is connected to the discharge section 2212, and the other end is slidably engaged with the second sowing tube 42. This allows the tea seeds in the receiving tank 3 to enter the separating component 2 under their own weight. The separating component 2 separates a large number of tea seeds into the quantity needed for sowing, and then sows the seeds into the ground through the first sowing tube 41 and the second sowing tube 42. Because the second sowing tube 42 is slidably engaged with the first sowing tube 41, the depth of the second sowing tube 42 into the soil is adjustable, allowing the sowing depth to be adjusted as needed. Since the roller 1 is connected to the separating component 2, and the first sowing tube 41 is connected to the separating component 2, with the second separating tube positioned above the first separating tube, the depth of the second separating tube inserted into the soil remains constant while the roller 1 is rolling on the land to be sown, allowing the sowing depth to be adjusted as needed.

[0030] In some examples, such as Figure 3 As shown, the second seeding tube 42 has a triangular cross-section and a apex angle facing the forward direction of the roller 1, which is parallel to the forward direction of the roller 1. This triangular cross-section of the second seeding tube 42 facilitates insertion into the ground and reduces soil resistance as it moves forward. Similarly, the first seeding tube 41 has a triangular cross-section and a apex angle facing the forward direction of the roller 1, which is parallel to the forward direction of the roller 1. The triangular cross-sections of both the first and second seeding tubes 41 and 42 improve the reliability of the connection during sliding engagement.

[0031] In some examples, such as Figure 8 As shown, the second seeding tube 42 has a positioning hole 421 on its peripheral wall. There are multiple positioning holes 421, which are arranged at intervals along the length of the second seeding tube 42. The first seeding tube 41 has a fixing hole 411 on its peripheral wall, so that when the second seeding tube 42 slides along the first seeding tube 41, the positioning hole 421 can be directly opposite the fixing hole 411. An adjusting member 43 is used to pass through the fixing hole 411 and cooperate with the positioning hole 421.

[0032] The positioning hole 421 begins on the side of the second seeding tube 42 opposite to the direction of travel, thus reducing the amount of soil entering the second seeding tube 42. The fixing hole 411 is provided corresponding to the positioning hole 421, so that the adjusting member 43 can pass through the fixing hole 411 and cooperate with the positioning hole 421. The adjusting member 43 can be a bolt, wing screw, or threaded rod, etc., as long as it can limit the relative position of the first seeding tube 41 and the second seeding tube 42.

[0033] In some examples, such as Figure 4 and Figure 8 As shown, the first seeding tube 41 is sleeved on the second seeding tube 42, making the second seeding tube 42 smaller than the first seeding tube 41, thereby reducing the resistance when the second seeding tube 42 is inserted into the ground.

[0034] This utility model also proposes a manual seeder with adjustable sowing spacing, which includes a handle 5 and a manual seeder with adjustable sowing depth, and a watch for the operator to hold for operation.

[0035] The handle 5 is fixedly connected to the separation component 2 of the adjustable seeding depth manual seeder. The separation component 2 of the adjustable seeding depth manual seeder includes: a separation shaft 21, one end of which is fixedly connected to the roller 1 of the adjustable seeding depth manual seeder. The axis of the separation shaft 21 coincides with the axis of the roller 1. The separation shaft 21 includes a separation part 211. The circumferential surface of the separation part 211 is provided with a first separation groove 2111 and a second separation groove 2112. The first separation groove 2111 and the second separation groove 2112 are arranged at intervals along the axial direction of the separation shaft 21. 112 has two, with the two second separation grooves 2112 arranged at intervals along the circumference of the separation section 211; a mounting cylinder 22, the mounting cylinder 22 including a separation cylinder 221, the separation cylinder 221 being sleeved on the separation section 211, the upper and lower sides of the separation cylinder 221 having a feeding section 2211 and a discharging section 2212 respectively, the feeding section 2211 and the discharging section 2212 both communicating with the internal space and the external space of the separation cylinder 221, the separation cylinder 221 being rotatably connected to the separation section 211 so that the separation section 211 has a material-taking state and a material-discharging state; in the material-taking state, the first separation groove 2111 and The feeding section 2211 faces the first separating trough 2111, allowing tea seeds to be sown to enter it. In the unloading state, the first separating trough 2111 faces the discharge section 2212, allowing the tea seeds in the first separating trough 2111 to exit and be sown into the soil via the sowing assembly 4. Alternatively, in the receiving state, the second separating trough 2112 faces the feeding section 2211, allowing tea seeds to be sown to enter it. In the unloading state, the second separating trough 2112 faces the discharge section 2212, allowing the tea seeds in the second separating trough 2112 to enter it. Tea seeds in the second separation trough 2112 exit the second separation trough 2112 and are sown onto the soil by the sowing assembly 4; the separation cylinder 221 can be slidably connected along the axial direction of the separation part 211 so that the separation shaft 21 has a first separation state and a second separation state. In the first separation state, the first separation trough 2111 is directly opposite to the discharge part 2212, and the second separation trough 2112 is offset from the discharge part 2212. In the second separation state, the first separation trough 2111 is offset from the discharge part 2212, and the second separation trough 2112 is directly opposite to the discharge part 2212.

[0036] One end of the separating shaft 21 is fixedly connected to one side of the roller 1. Simultaneously, the axis of the separating shaft 21 coincides with the axis of the roller 1, so that the separating shaft 21 will not move up or down when it rotates horizontally with the roller 1. The separating part 211 is cylindrical, with a first separating groove 2111 and a second separating groove 2112 formed on its circumference. The length, width, and height of the first separating groove 2111 and the second separating groove 2112 are slightly larger than the tea seed to be sown. The specific size can be determined according to requirements. For example, when sowing one seed at a time, the dimensions of the first separating groove 2111 and the second separating groove 2112 only need to be larger than the size of the tea seed. When sowing two seeds at a time, the dimensions of the first separating groove 2111 and the second separating groove 2112 can be increased as needed. The separating cylinder 221 is used to cooperate with the separating shaft 21 to separate the tea seeds to be sown. Both ends of the separating cylinder 221 have openings so that both ends of the separating shaft 21 can extend out of the separating cylinder 221. After the separating shaft 21 is set in the separating cylinder 221, the gap between the circumference of the separating shaft 21 and the inner wall of the separating cylinder 221 is less than the thickness of the tea seeds, so as to prevent the tea seeds from entering between the separating cylinder 221 and the separating shaft 21.

[0037] One end of the separating cylinder 221 is sleeved on the separating shaft 21. The upper part of the separating cylinder 221 has a feeding part 2211, and the lower part has a discharging part 2212. The feeding part 2211 and the discharging part 2212 are directly opposite each other, so that the separating shaft 21 can be set in the separating cylinder 221 and in the first discharging state. When the separating shaft 21 is rotated, the first separating groove 2111 can be directly opposite the feeding part 2211 and the discharging part 2212 respectively. At this time, tea seeds can enter the first separating groove 2111 from the separating part 211 and rotate with the rotating shaft. When the first separating groove 2111 is directly opposite the discharge section 2212, tea seeds can fall from the first separating groove 2111 into the discharge section 2212. Similarly, when the separating shaft 21 is in the second separating state, as the separating shaft 21 rotates, the second separating groove 2112 can be directly opposite the feeding section 2211 and the discharge section 2212 respectively. At this time, tea seeds can enter the second separating groove 2112 from the separating section 211 and rotate with the rotating shaft. When the second separating groove 2112 is directly opposite the discharge section 2212, tea seeds can fall from the second separating groove 2112 into the discharge section 2212. The feeding section 2211 can be a feeding groove, a feeding hole, etc., and the discharge section 2212 can be a discharge groove, a discharge hole, etc., without specific limitations. Both the feeding section 2211 and the discharge section 2212 are connected to the inside and outside of the separating cylinder 221.

[0038] It should be noted that the first and second material distribution states are achieved by sliding the separation shaft 21 along the length of the separation cylinder 221.

[0039] During operation, the feed section 2211 can be positioned at the upper part of the separator 221 by gripping the handle 5, and the discharge section 2212 at the lower part of the separator 221. After the tea seeds enter the feed section 2211, they enter the first separator 2111 or the second separator 2112 directly opposite the feed section 2211 by their own gravity. After entering the first separator 2111 or the second separator 2112, the tea seeds rotate with the separator 211. When the first separator 2111 or the second separator 2112 is directly opposite the discharge section 2212, the tea seeds enter the discharge section 2212 under the action of gravity and are sown into the soil under the action of the sowing component 4. Furthermore, since the separating cylinder 221 can slide along the axial direction of the separating section 211, the feeding section 2211 and the discharging section 2212 can be directly opposite the first separating groove 2111 when the separating section 211 rotates, and the feeding section 2211 and the discharging section 2212 can be directly opposite the second separating groove 2112 when the separating section 211 rotates. Since the number of first separating grooves 2111 is greater than the number of second separating grooves 2112, the sowing interval can also be adjusted by moving the separating cylinder 221. When a higher sowing density is required, the separating section 211 can be moved so that the feeding section 2211 and the discharging section 2212 can be directly opposite the second separating groove 2112 when the separating section 211 rotates. When a lower sowing density is required, the separating cylinder 221 can be moved so that the feeding section 2211 and the discharging section 2212 can be directly opposite the first separating groove 2111 when the separating section 211 rotates. At this time, the sowing density can be reduced, thus improving the convenience of use. It should be noted that after moving the separation shaft 21, the movement of the separation shaft 21 along the length direction of the separation cylinder 221 can be manually restricted.

[0040] In some examples, such as Figure 5 As shown, the adjustable seeding spacing manual seeder also includes a limiting component; the separating shaft 21 also includes a positioning part 212 connected to the separating part 211, the peripheral wall of the positioning part 212 is provided with a first positioning groove 2121 and a second positioning groove 2122, the first positioning groove 2121 and the second positioning groove 2122 both extend along the circumference of the positioning part 212, the first positioning groove 2121 and the second positioning groove 2122 are arranged at intervals along the axial direction of the positioning part 212; the mounting cylinder 22 also includes a positioning cylinder 222 connected to the separating cylinder 221, the positioning cylinder 222 is sleeved on the positioning part 212, the limiting component is disposed on the positioning cylinder 222, the positioning cylinder 222 can slide along the axial direction of the positioning part 212, so that in the first dispensing state, the limiting component slides with the first positioning groove 2121, and in the second dispensing state, the limiting component slides with the second positioning groove 2122.

[0041] The limiting component is used to restrict the axial movement of the separating cylinder 221 along the separating shaft 21. The limiting component can be a spring and a ball, or it can be an elastic rubber rib, etc., as long as it can restrict the axial movement of the separating cylinder 221 along the separating shaft 21. For example, when the limiting component can be a spring and a ball, the mounting cylinder 22 has an assembly cavity on the inner wall facing the positioning part 212. The spring and the ball are both disposed in the assembly cavity, with the ball located at the end of the spring facing the opening of the assembly cavity. In this way, when the positioning cylinder 222 moves with the separating cylinder 221, the ball can enter the first positioning groove 2121 or the second positioning groove 2122. The ball can restrict the movement of the separating shaft 21 along the length direction of the separating cylinder 221, thus achieving the purpose of limiting the separating shaft 21. For example, when the separating shaft 21 is moved to the first dispensing state, the first separating groove 2111 is directly opposite the discharge part 2212, and the balls enter the first positioning groove 2121. Through the cooperation of the balls and the first positioning groove 2121, the positioning cylinder 222 can be restricted from moving along the length of the separating cylinder 221, thereby preventing the first separating groove 2111 from the discharge part 2212 from shifting. Similarly, when the separating shaft 21 is moved again to the second dispensing state, the second separating groove 2112 is directly opposite the discharge part 2212, and the balls enter the second positioning groove 2122. Through the cooperation of the balls and the second positioning groove 2122, the positioning cylinder 222 can be restricted from moving along the length of the separating cylinder 221, thereby preventing the second separating groove 2112 from the discharge part 2212 from shifting.

[0042] In some examples (not shown in the figures), the limiting assembly includes an assembly cylinder 61, a ball bearing, and a spring; the assembly cylinder 61 has an opening at one end, the assembly cylinder 61 is disposed on the positioning cylinder 222, the opening of the assembly cylinder 61 faces the positioning part 212, the spring is disposed in the assembly cylinder 61, the ball bearing is disposed inside the assembly cylinder 61 and located at the end of the spring near the opening, the ball bearing abuts against the spring; the ball bearing is used for sliding engagement with the first positioning groove 2121 or the second positioning groove 2122.

[0043] One end of the assembly cylinder 61 is open and the other end is sealed. Both the spring and the ball are located in the assembly cylinder 61. The ball is located at the end of the spring facing the opening. In this way, the ball can protrude out of the opening of the assembly cylinder 61 through the opening. The length of the ball protruding out of the opening of the mounting cylinder 22 is less than the radius of the ball. In this way, when the ball enters the first positioning groove 2121 or the second positioning groove 2122, the difficulty of the ball exiting the first positioning groove 2121 or the second positioning groove 2122 can be reduced.

[0044] In addition, to facilitate assembly, a limiting rib can be provided on the side wall where the assembly cylinder 61 forms an opening. The limiting rib is used to limit the length of the ball protruding from the assembly cylinder 61.

[0045] In some examples, such as Figure 7 As shown, the first positioning groove 2121 has a first concave arc surface, which transitions arc-shaped from the bottom of the first positioning groove 2121 along the edge of the first positioning groove 2121; and / or The second positioning groove 2122 has a second concave arc surface, which transitions in an arc shape from the bottom of the second positioning groove 2122 along the edge of the first positioning groove 2121.

[0046] The first concave arc surface facilitates the exit of the ball bearings from the first positioning groove 2121 when the separating cylinder 221 is moved. The second concave arc surface facilitates the exit of the ball bearings from the second positioning groove 2122 when the separating cylinder 221 is moved.

[0047] In some examples, such as Figure 5 As shown, the positioning cylinder 222 has a snap-fit ​​groove 223 at the end away from the separating cylinder 221, and the assembly cylinder 61 is detachably mounted in the snap-fit ​​groove 223. The assembly cylinder 61 and the snap-fit ​​groove 223 are tightly fitted together. The arrangement of the assembly cylinder 61 and the snap-fit ​​groove 223 improves the ease of assembly and facilitates replacement.

[0048] In some examples, such as Figure 5 As shown, the two opposite walls of the snap-fit ​​groove 223 are provided with snap-fit ​​slots 224; the assembly cylinder 61 has snap-fit ​​ribs 62 corresponding to the snap-fit ​​slots 224, and the snap-fit ​​ribs 62 engage with the snap-fit ​​slots 224. The snap-fit ​​ribs and snap-fit ​​slots 224 help improve the stability of the engagement between the positioning cylinder 222 and the snap-fit ​​grooves 223.

[0049] It should be noted that after the assembly cylinder 61 is set with the snap-fit ​​groove 223, the assembly cylinder 61 can be fixed by welding, gluing, or bolts, which can improve the stability of the assembly cylinder 61.

[0050] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A manual seeder with adjustable seeding depth, characterized in that, The adjustable seeding depth manual seeder includes: Roller; A separating component connected to the roller, the separating component being configured to separate tea seeds, the separating component having an inlet and an outlet disposed opposite to each other, the inlet being located at the upper part of the separating component and the outlet being located at the lower part of the separating component; A receiving tank is configured to hold tea seeds to be separated. The receiving tank is located on the upper part of the separating assembly, and the discharge end of the receiving tank is connected to the feeding part. The seeding assembly includes a first seeding tube and a second seeding tube. One end of the first seeding tube is disposed at the lower part of the separation assembly and is connected to the discharge part. The second seeding tube is slidably engaged with the first seeding tube so that the seeding depth of the second seeding tube is adjustable.

2. The manual seeder with adjustable seeding depth as described in claim 1, characterized in that, The second seeding tube has a triangular cross-section and a apex angle facing the direction of travel of the roller, which is parallel to the direction of travel of the roller.

3. The manual seeder with adjustable seeding depth as described in claim 1, characterized in that, The second seeding tube has positioning holes on its peripheral wall. There are multiple positioning holes, and the multiple positioning holes are arranged at intervals along the length of the second seeding tube. The first seeding tube has a fixing hole on its peripheral wall so that when the second seeding tube slides along the first seeding tube, the positioning hole can be directly opposite the fixing hole. An adjusting member, which is used to pass through the fixing hole and engage with the positioning hole.

4. The manual seeder with adjustable seeding depth as described in claim 1, characterized in that, The first seeding tube is fitted onto the second seeding tube.

5. A manual seeder with adjustable seeding spacing, characterized in that, The adjustable seeding spacing manual seeder includes a handle and an adjustable seeding depth manual seeder according to any one of claims 1 to 4, wherein the handle is fixedly connected to a separation component of the adjustable seeding depth manual seeder, and the separation component of the adjustable seeding depth manual seeder includes: A separating shaft is provided, one end of which is fixedly connected to the roller of the manual seeder with adjustable seeding depth. The axis of the separating shaft coincides with the axis of the roller. The separating shaft includes a separating part, and a first separating groove and a second separating groove are provided on the circumferential surface of the separating part. The first separating groove and the second separating groove are arranged at intervals along the axial direction of the separating shaft. There are two second separating grooves, which are arranged at intervals along the circumferential direction of the separating part. The mounting cylinder includes a separating cylinder, which is sleeved on the separating part. The upper and lower sides of the separating cylinder have a feeding part and a discharging part, respectively. The feeding part and the discharging part are connected to the internal space and the external space of the separating cylinder. The separating cylinder is rotatably connected to the separating part so that the separating part has a material taking state and a material unloading state. In the material-taking state, the first separation trough is directly opposite the feeding section, allowing tea seeds to be sown to enter the first separation trough. In the material-unloading state, the first separation trough is directly opposite the discharge section, allowing tea seeds in the first separation trough to exit the first separation trough and be sown onto the soil via the sowing component. Alternatively, in the material-taking state, the second separation trough is directly opposite the feeding section, allowing tea seeds to be sown to enter the second separation trough. In the material-unloading state, the second separation trough is directly opposite the discharge section, allowing tea seeds in the second separation trough to exit the second separation trough and be sown onto the soil via the sowing component. The separating cylinder can be slidably connected along the axial direction of the separating part, so that the separating shaft has a first material separating state and a second material separating state. In the first material separating state, the first separating groove is directly opposite to the discharge part, and the second separating groove is offset from the discharge part. In the second material separating state, the first separating groove is offset from the discharge part, and the second separating groove is directly opposite to the discharge part.

6. The manual seeder with adjustable seeding spacing as described in claim 5, characterized in that, The manual seeder with adjustable seeding spacing also includes a limiting component; The separating shaft also includes a positioning part connected to the separating part. The peripheral wall of the positioning part is provided with a first positioning groove and a second positioning groove. The first positioning groove and the second positioning groove both extend along the circumferential direction of the positioning part and are arranged at intervals along the axial direction of the positioning part. The mounting cylinder further includes a positioning cylinder connected to the separating cylinder. The positioning cylinder is sleeved on the positioning part, and the limiting component is disposed on the positioning cylinder. The positioning cylinder can slide along the axial direction of the positioning part so that in the first material distribution state, the limiting component slides with the first positioning groove, and in the second material distribution state, the limiting component slides with the second positioning groove.

7. The manual seeder with adjustable seeding spacing as described in claim 6, characterized in that, The limiting assembly includes an assembly cylinder, a ball bearing, and a spring; The assembly cylinder has an opening at one end, the assembly cylinder is disposed on the positioning cylinder, the opening of the assembly cylinder faces the positioning part, the spring is disposed in the assembly cylinder, the ball is disposed in the assembly cylinder and located at the end of the spring near the opening, and the ball abuts against the spring. The ball bearing is used to slide in the first or second positioning groove.

8. The manual seeder with adjustable seeding spacing as described in claim 7, characterized in that, The first positioning groove has a first concave arc surface, which transitions arc-shaped from the bottom of the first positioning groove along the edge of the first positioning groove; and / or The second positioning groove has a second concave arc surface, which transitions in an arc shape from the bottom of the second positioning groove along the edge of the first positioning groove.

9. The manual seeder with adjustable seeding spacing as described in claim 7, characterized in that, The positioning cylinder has a snap-fit ​​groove at one end away from the separating cylinder, and the assembly cylinder is detachably mounted in the snap-fit ​​groove.

10. The manual seeder with adjustable seeding spacing as described in claim 9, characterized in that, The two opposite groove walls of the snap-fit ​​groove are provided with snap-fit ​​grooves; The assembly cylinder has a retaining rib corresponding to the retaining groove, and the retaining rib engages with the retaining groove.

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