Ejector type press ring for a hill-drop planter
Patent Information
- Application Number
- CN202522825335.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-31
AI Technical Summary
但因实际工作时排种块数量不同,需要配装表面开有不同孔距的紧固压圈,会造成材料、模具浪费
所述压圈通孔由一起始定位点以不同数量均布设置,实现多个孔距的适配,并避免孔重叠影响结构强度的同时,能够适应不同数量的排种块,使得紧固压圈具有普适性,减少加工成本,同时无需选取合适的紧固压圈。
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Figure CN224818699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of finger clip ejector seeding components, and in particular to an ejector seeding device pressure ring. Background Technology
[0002] The finger-clamp ejector precision seed metering assembly features high structural strength, stable seed pickup, and eliminates over-seeding and missed-seeding, significantly improving sowing efficiency. It also offers multiple uses in one machine, comprising a seed metering assembly, seed nozzles, seed metering blocks, connecting blocks, a fastening ring, and a housing. The seed metering assembly is placed inside the housing, and the fastening ring and housing are then fastened. During sowing, the seed metering assembly ejects the seeds, which are then distributed to the ground through the seed nozzles. Depending on different operational requirements, different numbers of seed metering blocks can be selected, along with correspondingly sized connecting blocks and seed nozzles to achieve different plant spacings and ultimately reach the desired yield. However, due to the varying number of seeding blocks in actual operation, fastening rings with different hole spacings on their surfaces are required, leading to material and mold waste. Furthermore, users need to select the appropriate hole spacing for the fastening ring based on specific site conditions, causing inconvenience in replacement and use. Utility Model Content
[0003] To address the problems mentioned in the background art, this utility model provides a catapult-type seeding device pressure ring.
[0004] This utility model provides the following technical solution: a catapult-type seeding device pressure ring, including a fastening pressure ring, wherein the fastening pressure ring is a ring structure, and its special feature is that the fastening pressure ring has multiple pressure ring through holes arranged axially along the same ring surface, and the pressure ring through holes are evenly distributed in different numbers from a starting positioning point, and the even distribution is divided into five to ten equal parts.
[0005] As a further preferred embodiment of this utility model, after the fastening pressure ring is installed, its bottom abuts against the seed metering block. Through the above connection method, the seed metering block is axially fixed, and the abutting effect of the bottom of the fastening pressure ring will fix it to the same plane.
[0006] As a further preferred embodiment of this utility model, a connecting block is inserted between the two seed metering blocks, a pressure ring groove is provided at the bottom of the fastening pressure ring, the pressure ring groove is an annular groove, a second guide block is provided at the top of the connecting block, and a first guide block is provided at the top of the seed metering block; the second guide block and the first guide block are located on the same annular surface and are inserted into the pressure ring groove, thereby improving the radial positioning effect of the fastening pressure ring through the above structure.
[0007] As a further preferred embodiment of this utility model, the pressure ring through hole is provided with an axial bolt, which passes through the corresponding seed metering block, thereby assisting in fixing the seed metering block through the above structure.
[0008] As a further preferred embodiment of this utility model, a planar boss is provided around the upper surface of the starting positioning point to facilitate the positioning and determination of the starting point and to facilitate the installation of the fastening ring.
[0009] As a further preferred embodiment of this utility model, a planar boss is provided around the upper surface of the six evenly distributed through holes of the pressure ring to ensure positioning while improving structural balance and avoiding eccentricity.
[0010] As a further preferred embodiment of this utility model, the inner diameter of the pressure ring through hole is 4-6mm. The above-mentioned structural setting is used to allow axial bolts to pass through while avoiding overlapping of hole edges due to excessive hole diameter.
[0011] The technical effects and advantages of this utility model are as follows: The pressure ring through holes are evenly distributed in different numbers from a starting positioning point to achieve multiple hole spacing adaptations. While avoiding hole overlap that affects structural strength, it can adapt to different numbers of seeding blocks, making the fastening pressure ring universal, reducing processing costs, and eliminating the need to select a suitable fastening pressure ring. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.
[0013] Figure 1 This is a perspective view of the pressure ring of the ejector-type seeding device of this utility model.
[0014] Figure 2 This is a schematic diagram of the assembly of the pressure ring of the ejector-type seeder of this utility model.
[0015] Figure 3 This is a bottom view of the fastening pressure ring and axial bolt in this utility model.
[0016] Figure 4 This is a perspective view of the combination of the axial bolt, seeding block, and connecting block in this utility model.
[0017] The attached figures are labeled as follows: 1. Connecting block; 2. Seeding assembly; 3. Fastening ring; 4. Axial bolt; 5. Seeding block; 101. Second guide block; 301. Through hole of the ring; 302. Ring groove of the ring; 303. Starting positioning point; 501. First guide block. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] like Figure 1 As shown in this embodiment of the utility model, the outer ring radius of the fastening ring 3 is 184mm, the inner ring radius is 144mm, and the inner diameter of the through hole 301 of the ring is 6mm. The above structure is designed to allow the axial bolt 4 to pass through while avoiding overlapping of the hole edges due to excessive hole diameter.
[0020] like Figure 3 and Figure 4 As shown in this embodiment of the present invention, the bottom of the fastening pressure ring 3 abuts against a seed metering block 5, and multiple seed metering blocks 5 are arranged around the seed metering assembly 2. A connecting block 1 is inserted between two seed metering blocks 5. The bottom of the fastening pressure ring 3 is provided with a pressure ring annular groove 302, which is an annular groove. The top of the connecting block 1 is provided with a second guide block 101, and the top of the seed metering block 5 is provided with a first guide block 501. The second guide block 101 and the first guide block 501 are located on the same annular surface and are inserted into the pressure ring annular groove 302. The above structure improves the radial positioning effect of the fastening pressure ring 3. The above connection method realizes the axial fixation of the seed metering block 5, and the abutment effect of the bottom of the fastening pressure ring 3 will be fixed to the same plane through it. An axial bolt 4 passes through the pressure ring through hole 301, and the axial bolt 4 passes through the corresponding seed metering block 5. The above structure assists in fixing the seed metering block 5.
[0021] like Figure 1 As shown in the embodiment of this utility model, planar bosses are provided around the upper surface of the starting positioning point 303 and the six evenly distributed points to facilitate the positioning and determination of the starting point. The starting point is located in the middle of two sets of symmetrical pressure ring through holes 301 with six progressively increasing spacing, which facilitates the installation of the pressure ring 3 and improves the structural balance to avoid eccentricity.
[0022] In the operation of this utility model, the pressure ring groove 302 is clamped at the guide block to determine the initial point. The hole at the initial point is aligned with the hole of the seed metering block 5 below, and the axial bolt 4 is connected to achieve the limiting of the seed metering block.
[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A pressure ring for a catapult-type seeder, comprising a fastening pressure ring, wherein the fastening pressure ring has an annular structure, characterized in that, The fastening ring has multiple axially arranged through holes along the same annular surface. The through holes are evenly distributed from a starting positioning point in different numbers, with the number of equal distributions ranging from five to ten.
2. The ejector-type seeding device pressure ring according to claim 1, characterized in that: After the fastening ring is installed, its bottom abuts against the seed metering block.
3. The ejector-type seeding device pressure ring according to claim 2, characterized in that: A connecting block is inserted between the two seed metering blocks. A pressure ring groove is provided at the bottom of the fastening pressure ring. The pressure ring groove is an annular groove. A second guide block is provided at the top of the connecting block. A first guide block is provided at the top of the seed metering block. The second guide block and the first guide block are located on the same annular surface and are inserted into the pressure ring groove.
4. The ejector-type seeding device pressure ring according to claim 2, characterized in that: An axial bolt passes through the through hole of the pressure ring, and the axial bolt passes through the corresponding seed metering block.
5. The ejector-type seeding device pressure ring according to claim 1, characterized in that: A planar boss is provided around the upper surface at the starting positioning point.
6. The ejector-type seeding device pressure ring according to claim 1, characterized in that: A planar boss is provided around the upper surface of the six evenly spaced through holes of the pressure ring.
7. The ejector-type seeding device pressure ring according to claim 1, characterized in that: The inner diameter of the pressure ring through hole is 4-6mm.