Tubular seed tube dredger for highland barley seeding machine
By designing an easy-to-clean barley planter seed pipe unclogging device, using an aluminum alloy conical unclogging head and unclogging brush ring, combined with threaded connection and adjustable extension rod, the problem of barley planter seed pipe blockage is solved, achieving efficient, convenient and safe cleaning results.
Patent Information
- Application Number
- CN202522634737.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-12
AI Technical Summary
Existing barley planters are prone to clogging of the seed pipe, leading to problems such as missed sowing and broken rows. Traditional cleaning tools are difficult to clean efficiently, conveniently, and safely, and are also inconvenient to disassemble and have high replacement costs.
A barley planter seed pipe unclogging device for easy cleaning has been designed. It adopts a conical unclogging head and unclogging brush ring made of aluminum alloy, combined with threaded connection and adjustable extension rod, and is equipped with a handle and suction cup to achieve efficient unclogging and cleaning in one operation.
It improves the efficiency of clearing seed pipes, reduces the difficulty of operation, enhances the stability and safety of the equipment, adapts to the needs of different sizes and depths, and meets the requirements of efficient, convenient and safe cleaning.
Smart Images

Figure CN224924247U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of seed pipe unclogging devices, specifically a seed pipe unclogging device for barley planters that is easy to clean. Background Technology
[0002] In barley cultivation, the seeder is a key piece of equipment for achieving efficient planting, and the seed metering tube, as one of the core components of the seeder, directly affects the sowing accuracy and operational efficiency. Barley seeds themselves have a certain amount of husk and down, and during sowing, dust, weed debris, and other impurities from the field environment can easily enter the seed metering tube along with the seeds. Over time, these impurities and seed residues gradually adhere to the inner wall of the seed metering tube, causing the inner diameter of the tube to decrease, and even blockage. Once the seed metering tube is blocked, it will not only cause problems such as missed sowing and broken rows, affecting the sowing quality, but also require stopping the machine for manual cleaning, interrupting the operation process, and significantly reducing planting efficiency. Especially during the busy sowing season, this will cause farmers to suffer significant time and labor losses.
[0003] Currently, the methods for cleaning clogged seed pipes in barley planters are relatively traditional, mostly relying on farmers using simple tools such as wire and wooden sticks. These tools are simple in structure and lack specific design, easily scratching the inner wall of the seed pipe during the unclogging process, damaging its smoothness and exacerbating the risk of subsequent blockage by impurities. Furthermore, these simple tools are ineffective at cleaning curved sections or stubborn blockages within the seed pipe, resulting in poor unclogging performance. While some existing unclogging tools have some cleaning capabilities, they generally suffer from problems such as inconvenient disassembly, easily worn and costly replacement parts, and a lack of stable grip during operation, failing to meet farmers' actual needs for efficient, convenient, and safe seed pipe cleaning. Therefore, developing a specialized unclogging tool for barley planter seed pipes that is easy to clean, provides good unclogging results, and is easy to operate has become an urgent need to solve the problem of seed pipe blockage in current barley planting operations. Utility Model Content
[0004] The purpose of this invention is to provide a barley planter seed pipe unblocking device that is easy to clean, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a barley planter seed pipe unblocking device that is easy to clean, comprising a sleeve rod, an extension rod, and a conical unblocking head. The extension rod is inserted inside the sleeve rod, and a groove matching the extension rod is opened on the sleeve rod. A threaded post is fixedly connected to the top of the extension rod, and a connecting block is engaged on the threaded post. The conical unblocking head is fixedly connected to the connecting block, and an unblocking brush ring is sleeved on the conical unblocking head. A handle is fixedly connected to the bottom of the sleeve rod.
[0006] Preferably, the conical unblocking head has a conical structure and is made of aluminum alloy, which has a compact structure and high strength, making it easy to unclog blockages.
[0007] Preferably, the unclogging brush ring has a circular structure, with a large number of monofilament bristles evenly inserted into the outer circumference of the unclogging brush ring, resulting in a uniform contact area and balanced force during cleaning.
[0008] Preferably, the outer wall of the threaded column has a helical structure, and the inner wall of the connecting block has a threaded groove that matches the threaded column, so that the connection is firm and the disassembly is convenient.
[0009] Preferably, the sleeve rod is a hollow cylindrical structure made of aluminum alloy. Nine circular slots are evenly distributed on one side of the sleeve rod. A spring is fixedly connected to the extension rod in the same direction as the pressing button slot. A pressing button is fixedly connected to the other side of the spring. The pressing button can be locked in the slot of the sleeve rod. The extension height of the extension rod can be adjusted by pressing the pressing button.
[0010] Preferably, the handle has a groove structure on one side to facilitate hand gripping, increasing friction during gripping and improving comfort and stability during operation.
[0011] Preferably, the bottom of the grip is connected to a connecting line, and the bottom of the connecting line is provided with a suction cup. The suction cup has a frustum-shaped structure and is made of thermoplastic rubber, which can closely fit a smooth or slightly rough contact surface, with strong adsorption and good sealing effect.
[0012] This utility model provides a seed pipe unclogging device for barley planters that is easy to clean, and has the following beneficial effects:
[0013] The conical aluminum alloy component with its tapered unclogging head, thanks to its material rigidity and structural advantages, can efficiently break through stubborn blockages. Combined with a circular, evenly distributed unclogging brush, it achieves integrated unclogging and cleaning, reducing the need for additional tools. The threaded connection structure, with its threaded post and connecting block, ensures reliable connection between components and facilitates future maintenance and replacement. It is compatible with different sizes of seed pipes. The slotted design of the hollow aluminum alloy sleeve rod allows for flexible height adjustment of the extension rod via a press-button mechanism, adapting to different depths of work and reducing operational difficulty.
[0014] The grooved design of the handle increases friction to prevent slippage during operation. The thermoplastic rubber of the suction cup allows the device to be firmly fixed and is easy to place. The core components are made of high-quality materials such as aluminum alloy and thermoplastic rubber, which takes into account both product strength and safety. The overall structure is reasonable, lightweight and durable, and can meet the long-term use needs of various scenarios such as maintenance, combining practicality and economy. Attached Figure Description
[0015] 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 these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a cross-sectional view of the conical unclogging head of this utility model;
[0018] Figure 3 This is a cross-sectional structural diagram of the sleeve rod of this utility model;
[0019] Figure 4 This is a cross-sectional view of the grip structure of this utility model.
[0020] In the diagram: 1. Sleeve rod; 2. Extension rod; 3. Threaded column; 4. Connecting block; 5. Conical unclogging head; 6. Unclogging brush ring; 7. Handle; 8. Connecting line; 9. Suction cup; 10. Press button; 11. Spring. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 This utility model provides a technical solution: a barley planter seed pipe unblocking device that is easy to clean, including a sleeve rod 1, an extension rod 2, and a conical unblocking head 5. The extension rod 2 is inserted inside the sleeve rod 1. The sleeve rod 1 has a sliding groove that matches the extension rod 2. A threaded post 3 is fixedly connected to the top of the extension rod 2. A connecting block 4 is engaged on the threaded post 3. The conical unblocking head 5 is fixedly connected to the connecting block 4. A unblocking brush ring 6 is sleeved on the conical unblocking head 5. A handle 7 is fixedly connected to the bottom of the sleeve rod 1.
[0023] The conical unblocking head 5 has a conical structure and is made of aluminum alloy. The conical tip design can quickly break through hard blockages and improve unblocking efficiency. The aluminum alloy material has good thermal conductivity and corrosion resistance, maintaining stable unblocking performance over a long period of time.
[0024] The unblocking brush ring 6 has a circular structure. A large number of monofilament bristles are evenly inserted into the outer circumference of the unblocking brush ring 6. The monofilament bristles have good bending resistance and are not easy to fall over even after repeated entry and exit from the seed tube, ensuring stable cleaning of the tube wall texture.
[0025] The outer wall of the threaded column 3 has a spiral structure, and the inner wall of the connecting block 4 has a threaded groove that matches the threaded column 3. It can be replaced by rotating. The device is easy to disassemble and the connection is firm and does not loosen.
[0026] The sleeve rod 1 is a hollow cylindrical structure made of aluminum alloy. Nine circular slots are evenly distributed on one side of the sleeve rod 1. A spring 11 is fixedly connected to the extension rod 2 in the same direction as the slot of the pressing button 10. The pressing button 10 is fixedly connected to the other side of the spring 11. The pressing button 10 can be locked in the slot of the sleeve rod 1. By pressing the pressing button 10, the pressing button 10 is locked in the inner wall of the sleeve rod 1. By stretching the extension rod 2 to adjust the height, the pressing button 10 is locked in the slot of the sleeve rod 1 to fix the extension rod 2. The operation is simple and convenient, improving the convenience of the device.
[0027] The handle 7 has a groove structure on one side for easy hand gripping. The number of grooves is adapted to the natural distribution of fingers, enabling multi-finger coordinated gripping and improving the comfort of the device.
[0028] The bottom of the handle 7 is connected to a connecting line 8, and the bottom of the connecting line 8 is equipped with a suction cup 9. The suction cup 9 has a frustum-shaped structure and is made of thermoplastic rubber. It can closely adhere to smooth or slightly rough contact surfaces, has strong adsorption force and good sealing effect, and is convenient for storing and taking out the device.
[0029] Working principle: Pull out the suction cup 9 to remove the device, select a suitable conical unclogging head 5, rotate and fix the conical unclogging head 5 on the threaded column 3, press the button 10 and then pull the extension rod 2 to pull the extension rod 2 to the appropriate position. At this time, the button 10 can be locked in the groove of the sleeve rod 1. Then insert it into the seed pipe to unclog. When it is necessary to replace the conical unclogging head 5 and other parts, unscrew the connecting block 4, replace the new conical unclogging head 5 and screw it on the threaded column 3.
[0030] Finally, several points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may change. Second, the accompanying drawings of the embodiments disclosed in this utility model only involve structures relevant to the embodiments disclosed in this utility model. Other structures can refer to common designs. Where there is no conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An easy-to-clean barley planter seed pipe unblocking device, comprising a sleeve rod (1), an extension rod (2), and a conical unblocking head (5), characterized in that: An extension rod (2) is inserted inside the sleeve rod (1). A groove matching the extension rod (2) is opened on the sleeve rod (1). A threaded column (3) is fixedly connected to the top of the extension rod (2). A connecting block (4) is engaged on the threaded column (3). A conical unclogging head (5) is fixedly connected to the connecting block (4). A unclogging brush ring (6) is sleeved on the conical unclogging head (5). A handle (7) is fixedly connected to the bottom of the sleeve rod (1).
2. The easy-to-clean barley planter seed pipe unblocking device according to claim 1, characterized in that: The conical unclogging head (5) has a conical structure and is made of aluminum alloy.
3. The easy-to-clean barley planter seed pipe unblocking device according to claim 1, characterized in that: The unblocking brush ring (6) has a circular structure, and a large number of monofilament bristles are evenly inserted into the outer circumference of the unblocking brush ring (6).
4. The easy-to-clean barley seed pipe unblocking device according to claim 1, characterized in that: The outer wall of the threaded column (3) is a spiral structure, and the inner wall of the connecting block (4) is provided with a threaded groove that matches the threaded column (3).
5. The easy-to-clean barley planter seed pipe unblocking device according to claim 1, characterized in that: The sleeve rod (1) is a hollow cylindrical structure. The sleeve rod (1) is made of aluminum alloy. Nine circular slots are evenly opened on one side of the sleeve rod (1). The extension rod (2) is fixedly connected to a spring (11) in the same direction as the slot of the pressing button (10). The pressing button (10) is fixedly connected to the other side of the spring (11). The pressing button (10) can be locked in the slot of the sleeve rod (1).
6. The easy-to-clean barley planter seed pipe unblocking device according to claim 1, characterized in that: The grip (7) has a slot structure on one side that makes it easy for the hand to grip.
7. The easy-to-clean barley planter seed pipe unblocking device according to claim 1, characterized in that: The bottom of the grip (7) is connected to a connecting line (8), and a suction cup (9) is provided at the bottom of the connecting line (8). The suction cup (9) has a frustum-shaped structure and is made of thermoplastic rubber.
