Agricultural seeding equipment

Abstract

The utility model relates to the technical field of agricultural equipment, in particular to agricultural seeding equipment which comprises an outer cylinder and a seeding cylinder, a notch and a seeding groove are formed in the outer cylinder and the seeding cylinder respectively, an adjusting plate is connected in the seeding groove in a sliding mode, a containing cavity is formed in one end of the seeding cylinder, and a communicating groove is formed between the containing cavity and the seeding groove. A push rod is hinged to the adjusting plate, and a pushing assembly is arranged in the containing cavity. According to the size of highland barley seeds, one end of the push rod is driven to swing by rotating the pushing assembly, the communication groove provides a motion space for swing of the push rod, and the other end of the push rod pushes or pulls the adjusting plate to move in the height direction of the sowing groove in the swing process. The size of the volume formed between the adjusting plate and the seeding groove is adjusted according to the size of the seeds, so that the number of the seeds of different sizes entering the seeding groove is almost kept consistent to adapt to the number of sieve holes of the sieve tray, the phenomenon of land vacancy and seedling leakage is avoided, and the space utilization rate of the land is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, in particular to agricultural sowing equipment. Background Art

[0002] Highland barley is an annual herbaceous plant of the Poaceae family and the genus Hordeum. It is the raw material for the production of beer, medicine and health products. During the sowing and planting process of highland barley, special sowing equipment is often used for sowing. Compared with manual sowing, the use of sowing equipment is efficient, time-saving and labor-saving.

[0003] In a Chinese patent document with the publication number CN219593028U, an interval sowing device is disclosed, which, when in use, drives the sowing disc to rotate. When the sowing disc rotates until the filling groove coincides with the lower end of the filling bucket, the seeds fall into the filling groove. When the sowing disc continues to rotate until the filling groove coincides with the discharge port, the seeds are poured into the sowing sieve disc for interval sowing.

[0004] However, due to the differences between highland barley varieties, their seeds are of different sizes. Therefore, when larger seeds enter a container with a constant space, the number of seeds that the container can accommodate at one time will be reduced compared to the number of smaller seeds. The reduction in the number of seeds cannot well meet the number of sieve holes in the sowing sieve, resulting in vacancies and missing seedlings in the land, affecting the spatial utilization of the land. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an agricultural sowing equipment to solve the problem in the prior art that when sowing highland barley seeds of different sizes through the sowing equipment, the number of seeds that can be accommodated by the containing trough at one time varies greatly, which easily leads to vacancies and missing seedlings in the final land.

[0006] The utility model is realized by the following technical solutions:

[0007] An agricultural sowing equipment comprises an outer cylinder and a sowing cylinder rotatably connected to the outer cylinder, wherein the outer cylinder and the sowing cylinder are respectively provided with a notch and a sowing groove on their circumferential surfaces, and when the sowing cylinder rotates until the sowing groove coincides with the notch, the seed enters the sowing groove through the notch, an adjusting plate is slidably connected to the sowing groove, and the length and width of the adjusting plate are matched with the sowing groove, a accommodating cavity is provided at one end of the sowing cylinder, a connecting groove is provided between the accommodating cavity and the sowing groove, and the connecting groove is respectively connected with the sowing groove and the accommodating cavity, a push rod is hinged on the adjusting plate, and the other end of the push rod passes through the connecting groove and extends into the accommodating cavity, and a pushing assembly is provided in the accommodating cavity, which is used to drive the push rod to push or pull the adjusting plate to move along the height direction of the sowing groove to adjust the volume of the sowing groove.

[0008] Furthermore, the pushing assembly includes a rotating shaft fixedly connected to the accommodating cavity, the center line of the rotating shaft is parallel to the center line of the sowing barrel, the other end of the rotating shaft is rotatably connected to a turntable, and a support rod is fixedly connected to the end surface of the turntable away from the rotating shaft, the support rod is eccentrically arranged on the turntable and is rotatably connected to one end of the push rod away from the adjustment plate, and the turntable is provided with a driving mechanism for driving it to rotate.

[0009] Furthermore, the driving mechanism includes a driving rod fixedly connected to the side of the turntable away from the rotating shaft, the driving rod is concentrically arranged with the turntable, and an adjusting disk is fixedly connected to the end of the driving rod away from the turntable, and a limiting component is also arranged in the accommodating cavity, and the limiting component is used to limit the circumferential rotation of the adjusting disk.

[0010] Furthermore, the limiting component includes a limiting plate fixedly connected to the accommodating cavity, the driving rod is passed through the limiting plate, a plurality of limiting holes are arranged in a circumferential array on the end surface of the limiting plate away from the turntable, a limiting rod is inserted into the adjusting plate, and when the limiting rod is inserted into the limiting hole, the adjusting plate is restricted from rotating.

[0011] Furthermore, a plurality of grooves are provided on the limit plate, and the plurality of grooves are respectively connected to the plurality of limit holes. The limit component also includes an elastic protrusion fixedly connected to the circumferential surface of the limit rod. When the elastic protrusion extends into the groove and snaps into engagement, it can limit the movement of the limit rod along its axial direction.

[0012] Furthermore, when the limiting plate is installed in the accommodating cavity, there is a distance difference between the end surface of the limiting plate and the end surface of the sowing barrel along the center line direction of the limiting plate, thereby forming an accommodating space between the limiting plate and the sowing barrel for accommodating and installing the driving mechanism.

[0013] Furthermore, a first identification member is fixedly connected to the end surface of the limiting disk close to the adjusting disk, and a plurality of second identification members are arranged in a circumferential array on the circumferential surface of the adjusting disk.

[0014] Furthermore, the outer cylinder is installed in a frame, and an end cover is hinged at one end of the frame. When the end cover is opened, the driving mechanism can be operated to adjust the volume of the sowing groove.

[0015] Furthermore, a slide groove is provided at the bottom of the frame, a sieve tray is slidably connected in the slide groove, the sieve tray is located on the outside of the frame, a sieve plate is slidably connected in the sieve tray, and the sieve plate is used to cover and adjust the size of the sieve holes on the sieve tray.

[0016] The beneficial effects of the utility model are:

[0017] When the sowing device of the utility model is used to sow highland barley seeds of different sizes, according to the size of the seeds, the push assembly is rotated to drive one end of the push rod to swing, and the connecting groove provides a movement space for the swing of the push rod, and the other end of the push rod pushes or pulls the adjustment plate to move along the height direction of the sowing groove during the swinging process, so as to adjust the size of the volume formed between the adjustment plate and the sowing groove, and when a plurality of sowing grooves are arranged on the sowing cylinder, the push assembly can be rotated once to drive a plurality of push rods to push or pull the adjustment plate to move and adjust the sowing groove. The size of the volume of the sowing trough, wherein, when it is necessary to sow seeds with a larger volume, the adjusting plate is driven to slide downward along the height direction of the sowing trough to increase the volume of the sowing trough; when it is necessary to sow seeds with a smaller volume, the adjusting plate is driven to slide upward along the height direction of the sowing trough to reduce the volume of the sowing trough, thereby controlling the number of seeds to be almost consistent each time sowing by adjusting the size of the sowing trough volume to adapt to the number of sieve holes of the sieve plate, and ensuring as much as possible that seeds pass through each sieve hole for sowing, thereby avoiding the phenomenon of vacancies and missing seedlings in the land and ensuring the space utilization rate of the land.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the agricultural sowing equipment of the utility model;

[0020] Figure 2This is a schematic diagram of the connection between the outer cylinder and the frame of the agricultural sowing equipment of the utility model;

[0021] Figure 3 It is a schematic diagram of the position of the connecting groove of the agricultural sowing equipment of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection between the rotating shaft and the rotating disk of the agricultural sowing equipment of the utility model;

[0023] Figure 5 It is a schematic diagram of the connection between the elastic protrusion and the limit rod of the agricultural sowing equipment of the utility model;

[0024] Figure 6 This is a schematic diagram of the connection between the limit plate and the seeding cylinder of the agricultural seeding equipment of the utility model;

[0025] Figure 7 It is a structural schematic diagram of the agricultural sowing equipment of the utility model in another direction;

[0026] Figure 8 This is a schematic diagram of the connection between the sieve plate and the frame of the agricultural sowing equipment of the present utility model.

[0027] In the figure: 1-outer cylinder, 2-seeding cylinder, 3-notch, 4-seeding groove, 5-adjusting plate, 6-accommodating chamber, 7-connecting groove, 8-push rod, 9-pushing assembly, 91-rotating shaft, 92-turntable, 93-support rod, 94-driving mechanism, 941-driving rod, 942-adjusting disk, 943-limiting component, 9431-limiting disk, 9432-limiting hole, 9433-limiting rod, 9434-groove, 9435-elastic protrusion, 9436-accommodating space, 9437-first identification member, 9438-second identification member, 10-frame, 11-end cover, 12-slideway, 13-sieve plate, 14-sieve plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] 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 present invention to be protected, 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.

[0030] 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.

[0031] In the above description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "one side", "the other side", etc. is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying 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 a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the term "same" does not mean that the mechanisms must be absolutely identical, but slight differences are allowed. The term "vertical" simply means that the positional relationship between the mechanisms is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0033] See also Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 8 The utility model provides a technical solution: an agricultural sowing equipment, comprising an outer cylinder 1 and a sowing cylinder 2 rotatably connected to the outer cylinder 1, wherein the outer cylinder 1 and the sowing cylinder 2 are respectively provided with a notch 3 and a sowing groove 4. When the sowing cylinder 2 rotates until the sowing groove 4 coincides with the notch 3, the seeds enter the sowing groove 4 through the notch 3, and an adjusting plate 5 is slidably connected to the sowing groove 4, the length and width of the adjusting plate 5 are matched with the sowing groove 4, one end of the sowing cylinder 2 is provided with a accommodating chamber 6, a connecting groove 7 is provided between the accommodating chamber 6 and the sowing groove 4, and the connecting groove 7 is respectively connected with the sowing groove 4 and the accommodating chamber 6, a push rod 8 is hinged on the adjusting plate 5, the other end of the push rod 8 passes through the connecting groove 7 and extends into the accommodating chamber 6, and a pushing assembly 9 is provided in the accommodating chamber 6, which is used to drive the push rod 8 to push or pull the adjusting plate 5 to move along the height direction of the sowing groove 4 to adjust the volume of the sowing groove 4.

[0034] In this scheme, a support seat is installed on the lower bolt of the outer cylinder 1 for supporting and installing the outer cylinder 1; the diameter of the sowing cylinder 2 is slightly smaller than the inner diameter of the outer cylinder 1, which is conducive to smoothly installing the collected sowing cylinder 2 in the outer cylinder 1, and at the same time can prevent the seeds from moving and falling between the sowing cylinder 2 and the outer cylinder 1 to cause blockage. The sowing cylinder 2 extends from one end of the outer cylinder 1 and is installed in the outer cylinder 1. When the sowing cylinder 2 is installed, a driving shaft is first provided at the end that extends into the outer cylinder 1, and the other end of the driving shaft passes through the outer cylinder 1 and extends outward. A gear is installed on the driving shaft, and the sowing cylinder 2 can be driven to rotate in the outer cylinder 1 through the cooperation of a motor, a gear and a chain.

[0035] A plurality of sowing grooves 4 can be arranged on the circumference of the sowing cylinder 2, and the same number of notches 3 can be correspondingly arranged on the circumference of the outer cylinder 1. When the sowing cylinder 2 rotates half a circle, one-third of a circle or other number of circles, the sowing groove 4 can overlap with the notch 3 for sowing once, thereby controlling the interval distance of each sowing and providing suitable growth conditions for the growth of highland barley.

[0036] When sowing highland barley seeds of different sizes by the sowing device of the utility model, according to the size of the seeds, by rotating the pushing assembly 9, one end of the push rod 8 is driven to swing, and the connecting groove 7 provides a movement space for the swing of the push rod 8, and the other end of the push rod 8 pushes or pulls the adjusting plate 5 to move along the height direction of the sowing groove 4 during the swinging process, thereby adjusting the size of the volume formed between the adjusting plate 5 and the sowing groove 4, and when a plurality of sowing grooves 4 are provided on the sowing cylinder 2, the pushing assembly 9 can be rotated once to drive a plurality of the push rods 8 to push or pull the adjusting plate 5 at the same time. The volume of the sowing groove 4 is adjusted by movement. When it is necessary to sow seeds with a larger volume, the adjusting plate 5 is driven to slide downward along the height direction of the sowing groove 4 to increase the volume of the sowing groove 4; when it is necessary to sow seeds with a smaller volume, the adjusting plate 5 is driven to slide upward along the height direction of the sowing groove 4 to reduce the volume of the sowing groove 4. Thus, by adjusting the volume of the sowing groove 4, the number of seeds in each sowing can be controlled to remain almost consistent to adapt to the number of sieve holes of the sieve plate, and to ensure that seeds pass through each sieve hole for sowing as much as possible, thereby avoiding the phenomenon of vacancies and missing seedlings in the land and ensuring the space utilization rate of the land.

[0037] See also Figures 3 to 5In this embodiment, the pushing assembly 9 includes a rotating shaft 91 fixedly connected to the accommodating cavity 6, the center line of the rotating shaft 91 is parallel to the center line of the sowing cylinder 2, and the other end of the rotating shaft 91 is rotatably connected to a turntable 92. A support rod 93 is fixedly connected to the end surface of the turntable 92 away from the rotating shaft 91. The support rod 93 is eccentrically arranged on the turntable 92 and is rotatably connected to one end of the push rod 8 away from the adjusting plate 5. The turntable 92 is provided with a driving mechanism 94 for driving it to rotate.

[0038] Specifically, the turntable 92 is rotatably connected to the rotating shaft 91 through a bearing. When in use, the turntable 92 is driven to rotate by the driving mechanism 94. When the turntable 92 rotates, the support rod 93 is driven to move in a circular motion. Since the support rod 93 is eccentrically arranged on the turntable 92, when the turntable 92 rotates clockwise, the support rod 93 drives the connecting end of the push rod 8 and the support rod 93 to swing. During the swinging process of the push rod 8, the end of the push rod 8 away from the support rod 93 is hinged to the adjustment plate 5, thereby driving the push rod 8 to push the adjustment plate 5 to move along the height direction of the sowing groove 4 to reduce the volume of the sowing groove 4. Conversely, the turntable 92 is driven to rotate counterclockwise, which can drive the push rod 8 to pull the adjustment plate 5 to move along the height direction of the sowing groove 4 to increase the volume of the sowing groove 4.

[0039] See also Figure 2 , Figure 3 and Figure 5 In this embodiment, the driving mechanism 94 includes a driving rod 941 fixedly connected to the side of the turntable 92 away from the rotating shaft 91, the driving rod 941 is concentrically arranged with the turntable 92, and the end of the driving rod 941 away from the turntable 92 is fixedly connected with an adjusting disk 942, and a limiting component 943 is also provided in the accommodating cavity 6, and the limiting component 943 is used to limit the circumferential rotation of the adjusting disk 942.

[0040] Specifically, when it is necessary to drive the turntable 92 to rotate to adjust the volume of the sowing groove 4, hold and rotate the adjusting disk 942. When the adjusting disk 942 rotates, it drives the driving rod 941 to rotate. The rotation of the driving rod 941 drives the turntable 92 to rotate to adjust the volume of the sowing groove 4. After the adjustment is completed, the limiting component 943 limits the circumferential rotation of the adjusting disk 942 to prevent the adjusting disk 942 from rotating and changing the volume of the sowing groove 4.

[0041] See also Figure 2 , Figure 5 and Figure 6In this embodiment, the limiting component 943 includes a limiting plate 9431 fixedly connected to the accommodating cavity 6, the driving rod 941 is passed through the limiting plate 9431, and a plurality of limiting holes 9432 are arranged in a circumferential array on the end surface of the limiting plate 9431 away from the turntable 92, and a limiting rod 9433 is inserted into the adjusting plate 942. When the limiting rod 9433 is inserted into the limiting hole 9432, the adjusting plate 942 is restricted from rotating.

[0042] Specifically, after rotating the adjusting disk 942 to complete the volume adjustment of the sowing slot 4, the limiting rod 9433 is pushed on the adjusting disk 942 close to the limiting hole 9432, and one end of the limiting rod 9433 is inserted into the limiting hole 9432, thereby limiting the rotation of the adjusting disk 942. At the same time, a plurality of limiting holes 9432 are arranged in a circular array on the end face of the limiting disk 9431 to meet the need of locking different volumes of the sowing slots 4.

[0043] See also Figure 5 In this embodiment, a plurality of grooves 9434 are further provided on the limiting plate 9431, and the plurality of grooves 9434 are respectively connected with the plurality of limiting holes 9432. The limiting component 943 also includes an elastic protrusion 9435 fixedly connected to the circumference of the limiting rod 9433. When the elastic protrusion 9435 extends into the groove 9434 for snap-fitting, it can limit the movement of the limiting rod 9433 along its axial direction.

[0044] Specifically, when the limiting rod 9433 is inserted into the limiting hole 9432, the limiting rod 9433 can be rotated. When the limiting rod 9433 is rotated until the elastic protrusion 9435 extends into the groove 9434, the limiting rod 9433 can be restricted from moving along its axial direction, so that the end of the limiting rod 9433 is stably inserted in the limiting hole 9432, and the adjusting disk 942 is limited, thereby preventing the adjusting disk 942 from rotating to change the volume of the sowing slot 4.

[0045] See also Figure 6 In this embodiment, when the limiting plate 9431 is installed in the accommodating cavity 6, there is a distance difference between the end surface of the limiting plate 9431 and the end surface of the sowing barrel 2 along the center line direction of the limiting plate 9431, so that an accommodating space 9436 is formed between the limiting plate 9431 and the sowing barrel 2 for accommodating and installing the driving mechanism 94.

[0046] Specifically, by installing the limit plate 9431 in the accommodating cavity 6, and the installation position of the limit plate 9431 is close to the bottom wall of the accommodating cavity 6, so that there is a distance difference between the end face of the limit plate 9431 and the end face of the sowing cylinder 2 along the center line direction of the limit plate 9431, a accommodating space 9436 is formed between the limit plate 9431 and the sowing cylinder 2 for accommodating the installation of the driving mechanism 94, which is equivalent to installing the entire driving mechanism 94 in the accommodating cavity 6, thereby reducing the volume of the sowing equipment, making the sowing equipment smaller and more compact.

[0047] See also Figure 5 and Figure 6 In this embodiment, a first identification member 9437 is fixedly connected to the end surface of the limiting plate 9431 close to the adjusting plate 942 , and a plurality of second identification members 9438 are arranged in a circular array on the circumferential surface of the adjusting plate 942 .

[0048] Specifically, a plurality of second identification members 9438 are provided in a circular array on the circumferential surface of the adjusting disk 942. The second identification members can be represented by different Arabic numerals, corresponding to different volumes of the sowing slots 4. When the adjusting disk 942 is rotated until the second identification member 9438 is aligned with the first identification member 9437, it corresponds to a volume size, which is beneficial for the user to control the angle of rotation of the adjusting disk 942 to adjust the volume of the sowing slot 4 according to the seed size, and when the second identification member 9438 is aligned with the first identification member 9437, the limiting rod 9433 is aligned with the limiting hole 9432, which is beneficial for limiting the adjusting disk 942 and preventing the adjusting disk 942 from rotating to change the volume of the sowing slot 4.

[0049] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 In this embodiment, the outer cylinder 1 is installed in a frame 10, and an end cover 11 is hinged at one end of the frame 10. When the end cover 11 is opened, the driving mechanism 94 can be operated to adjust the volume of the sowing groove 4.

[0050] Specifically, the frame 10 is used to accommodate and install the outer cylinder 1, and the electrical components that drive the sowing cylinder 2 to rotate are installed in the frame 10 to protect them. A silo is installed on the top of the frame 10, and a moving wheel is installed on the bottom. The moving wheel is used to support the movement of the sowing equipment for sowing, and the silo is used to store the seeds to be sown. When the sowing cylinder 2 rotates until the sowing groove 4 coincides with the gap 3, the seeds pass through the gap 3 from the silo into the sowing groove 4. Finally, when the sowing cylinder 2 continues to rotate until the sowing groove 4 coincides with the discharge port at the bottom of the frame 10, the seeds are poured out for sowing; by opening the end cover 11, the drive mechanism 94 can be operated to adjust the volume of the sowing groove 4. At the same time, the drive mechanism 94 is shielded and protected by the end cover 11 to prevent other people from accidentally touching the drive mechanism 94 to adjust the volume of the sowing groove 4.

[0051] See also Figure 2 , Figure 7 and Figure 8 In this embodiment, a slide groove 12 is provided at the bottom of the frame 10, and a sieve plate 13 is slidably connected to the slide groove 12. The sieve plate 13 is located on the outside of the frame 10, and a sieve plate 14 is slidably connected to the sieve plate 13. The sieve plate 14 is used to block and adjust the size of the sieve holes on the sieve plate 13.

[0052] Specifically, by arranging an electric push rod (not shown) or a shaking mechanism (not shown) in the patent document described in the background technology on the frame 10, the sieve plate 13 is driven to shake back and forth under the frame 10 for sowing, thereby ensuring uniform sowing, and when sowing seeds of different sizes, the sieve plate 14 is pulled to move outward from the sieve plate 13, so that the sieve holes on the sieve plate 14 are partially staggered with the sieve holes on the sieve plate 13, thereby blocking the sieve holes on the sieve plate 13, so as to achieve the purpose of adjusting the size of the sieve holes on the sieve plate 13 according to the size of the seeds. Secondly, elastic protrusions and grooves are provided between the side walls of the sieve plate 14 and the inner walls of the sieve plate 13. Through the snap-fitting of the elastic protrusions and the grooves, there is a sense of frustration each time the sieve plate 14 is pulled for adjustment, so that the degree to which the sieve holes on the sieve plate 13 are blocked by the sieve plate 14 can be known, so as to quickly determine the size of the sieve holes on the sieve plate 13.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An agricultural sowing device, comprising an outer cylinder (1) and a sowing cylinder (2) rotatably connected to the outer cylinder (1), wherein a notch (3) and a sowing groove (4) are respectively provided on the circumferential surfaces of the outer cylinder (1) and the sowing cylinder (2), and when the sowing cylinder (2) rotates until the sowing groove (4) coincides with the notch (3), the seeds enter the sowing groove (4) through the notch (3), and the device is characterized in that: An adjusting plate (5) is slidably connected in the sowing groove (4), and the length and width of the adjusting plate (5) are matched with the sowing groove (4). A receiving cavity (6) is provided at one end of the sowing cylinder (2), and a connecting groove (7) is provided between the connecting cavity (6) and the sowing groove (4). The connecting groove (7) is connected with the sowing groove (4) and the receiving cavity (6) respectively. A push rod (8) is hinged on the adjusting plate (5), and the other end of the push rod (8) passes through the connecting groove (7) and extends into the receiving cavity (6). A pushing assembly (9) is provided in the receiving cavity (6) for driving the push rod (8) to push or pull the adjusting plate (5) to move along the height direction of the sowing groove (4) to adjust the volume of the sowing groove (4).

2. The agricultural sowing equipment according to claim 1, characterized in that: The pushing assembly (9) comprises a rotating shaft (91) fixedly connected to the accommodating cavity (6), the center line of the rotating shaft (91) is parallel to the center line of the sowing cylinder (2), the other end of the rotating shaft (91) is rotatably connected to a rotating disk (92), the end surface of the rotating disk (92) away from the rotating shaft (91) is fixedly connected to a support rod (93), the support rod (93) is eccentrically arranged on the rotating disk (92), and is rotatably connected to one end of the push rod (8) away from the adjustment plate (5), and the rotating disk (92) is provided with a driving mechanism (94) for driving it to rotate.

3. The agricultural sowing equipment according to claim 2, characterized in that: The driving mechanism (94) comprises a driving rod (941) fixedly connected to a side of the rotating disk (92) away from the rotating shaft (91); the driving rod (941) is arranged concentrically with the rotating disk (92); and an end of the driving rod (941) away from the rotating disk (92) is fixedly connected to an adjusting disk (942); a limiting component (943) is also arranged in the accommodating cavity (6); and the limiting component (943) is used to limit the circumferential rotation of the adjusting disk (942).

4. The agricultural sowing equipment according to claim 3, characterized in that: The limiting component (943) includes a limiting plate (9431) fixedly connected to the accommodating cavity (6), the driving rod (941) is passed through the limiting plate (9431), a plurality of limiting holes (9432) are arranged in a circumferential array on the end surface of the limiting plate (9431) away from the rotating disk (92), and a limiting rod (9433) is inserted into the adjusting disk (942). When the limiting rod (9433) is inserted into the limiting hole (9432), the adjusting disk (942) is restricted from rotating.

5. The agricultural sowing equipment according to claim 4, characterized in that: The limiting plate (9431) is also provided with a plurality of grooves (9434), and the plurality of grooves (9434) are respectively connected to the plurality of limiting holes (9432). The limiting component (943) also includes an elastic protrusion (9435) fixedly connected to the circumference of the limiting rod (9433). When the elastic protrusion (9435) extends into the groove (9434) and snaps into engagement, it can limit the movement of the limiting rod (9433) along its axial direction.

6. The agricultural sowing equipment according to claim 4, characterized in that: When the limiting plate (9431) is installed in the accommodating cavity (6), there is a distance difference between the end surface of the limiting plate (9431) and the end surface of the sowing cylinder (2) along the center line direction of the limiting plate (9431), thereby forming a accommodating space (9436) between the limiting plate (9431) and the sowing cylinder (2) for accommodating and installing the driving mechanism (94).

7. The agricultural sowing equipment according to claim 4, characterized in that: A first identification member (9437) is fixedly connected to the end surface of the limiting plate (9431) close to the adjusting plate (942), and a plurality of second identification members (9438) are arranged in a circular array on the circumferential surface of the adjusting plate (942).

8. The agricultural sowing equipment according to claim 6, characterized in that: The outer cylinder (1) is installed in a frame (10), and an end cover (11) is hingedly connected to one end of the frame (10). When the end cover (11) is opened, the driving mechanism (94) can be operated to adjust the volume of the sowing groove (4).

9. The agricultural sowing equipment according to claim 8, characterized in that: A slide groove (12) is provided at the bottom of the frame (10), a sieve plate (13) is slidably connected in the slide groove (12), the sieve plate (13) is located outside the frame (10), a sieve plate (14) is slidably connected in the sieve plate (13), and the sieve plate (14) is used to cover and adjust the size of the sieve holes on the sieve plate (13).

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