Combined type furrow opener for wheat seeding
By introducing a furrowing ring into a combined furrow opener for wheat sowing, the problems of disc damage and high repair costs are solved, and the protection of the furrowing disc and the reduction of repair costs are achieved.
Patent Information
- Application Number
- CN202422887670.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The discs of existing combined furrow openers for wheat sowing are easily damaged by collision with hard materials such as gravel in the soil, resulting in high maintenance costs and the need to replace the entire disc.
A combined trencher with a trenching ring is designed. The trenching ring is used to block the edge of the trenching disc to prevent impact from gravel. The maintenance cost can be reduced by replacing the trenching ring and avoiding the need to replace the entire trenching disc.
It effectively protects the coulter disc from impact by gravel, reduces the chance of damage to the coulter disc, and reduces maintenance costs by replacing the coulter ring.
Smart Images
Figure CN223379596U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of furrow openers, in particular to a combined furrow opener for wheat sowing. Background Art
[0002] The combined furrow opener for wheat sowing is an important part of agricultural machinery. By integrating functions such as furrowing, seed guiding, and pressing, the combined furrow opener improves the efficiency and quality of wheat sowing and reduces the number of steps and labor intensity of sowing operations. Currently, many combined furrow openers usually use two diagonal discs to open furrows, and the seeds are discharged into the opened furrows from the gap between the two discs. However, although the furrow opener operates on the soil in the farmland, it is inevitable that hard materials such as gravel will appear in the soil, causing the disc to often collide with hard materials such as gravel during the furrowing process. After long-term use, the edge of the disc will be damaged, affecting the furrowing performance during subsequent use. In addition, the disc is a whole unit. When the disc is damaged, it needs to be replaced as a whole, which makes the maintenance cost high. Utility Model Content
[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.
[0004] Therefore, the purpose of the present invention is to provide a combined furrow opener for wheat sowing, which can solve the problem of high maintenance cost due to disc damage.
[0005] To achieve the above-mentioned purpose, the utility model proposes a combined furrow opener for wheat sowing, comprising a support frame, a mounting plate, an arc-shaped scraper, a seed placement hole and two furrowing discs, the inner walls of the two furrowing discs are provided with a plurality of slide grooves, the inner walls of the plurality of slide grooves are slidably connected to a limiting plug rod, and the side walls of the two furrowing discs are both snap-connected with a furrowing ring, wherein the inner side of the furrowing ring is provided with a plurality of insertion holes, the limiting plug rod is inserted into the inner wall of the insertion hole, an annular inner groove and a plurality of connecting grooves are provided in the furrowing disc, the annular inner groove is connected with the internal space of the plurality of slide grooves through the plurality of connecting grooves, the side wall of the limiting plug rod is fixedly connected with a first piston ring, the first piston ring is slidably connected to the corresponding inner wall of the slide groove, and the outer sides of the furrowing disc and the furrowing ring are both provided with a Teflon coating.
[0006] The combined furrow opener for wheat sowing of the utility model uses a furrowing ring to enclose the edge of the furrowing disc, so that hard materials such as gravel in the soil will come into contact with the furrowing ring, and the furrowing disc is protected from impact, thereby achieving protection of the furrowing disc and reducing the chance of damage to the furrowing disc;
[0007] By replacing the trenching ring, there is no need to replace the trenching disc body, reducing maintenance costs.
[0008] In addition, the combined furrow opener for wheat sowing proposed in the present invention may also have the following additional technical features:
[0009] Specifically, a first spring is sleeved on the side wall of the limiting plug rod, and the first spring contacts one end of the corresponding first piston ring.
[0010] Specifically, an inflation pipe is installed on the opposite side of the two ditching plates, the inner wall of the inflation pipe is slidably connected to a sliding pipe, the side wall of the sliding pipe is fixedly connected to a second piston ring, and a ventilation pipe is installed between the inflation pipe and the annular inner groove.
[0011] Specifically, a second spring is provided in the inflation tube, and the second spring is fixedly connected to one end corresponding to the second piston ring.
[0012] Specifically, one side of the two ditching plates is threadedly connected with a screw button air plug, the screw button air plug corresponds to the position of the annular inner groove, and a shielding net is installed at the opening of the sliding tube.
[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0016] Figure 2 This is an exploded, enlarged structural diagram of the trenching disc and trenching ring in the utility model;
[0017] Figure 3 It is a schematic diagram of an enlarged top view of the ditching disc and the ditching ring in the utility model;
[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the partially enlarged structure at point A in the middle;
[0019] Figure 5 It is a schematic diagram of an enlarged side cross-section of the trenching disc in the present invention.
[0020] As shown in the figure:
[0021] 1. Support frame; 11. Mounting plate; 12. Curved scraper; 121. Seed placement hole; 2. Ditching disc; 21. Slide; 22. Limiting rod; 221. First piston ring; 222. First spring; 23. Annular inner groove; 231. Connecting groove; 24. Screw air plug; 3. Ditching ring; 31. Plug; 4. Inflating tube; 41. Sliding tube; 42. Second piston ring; 43. Ventilation tube; 44. Second spring; 46. Shielding net; 5. Teflon coating. DETAILED DESCRIPTION
[0022] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and scope of the appended claims.
[0023] The combined furrow opener for wheat sowing according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
[0024] like Figure 1-Figure 5 As shown, the combined furrow opener for wheat sowing according to the embodiment of the utility model may include a support frame 1, a mounting plate 11, an arc-shaped scraper 12, a seed placement hole 121 and two furrowing discs 2. The inner walls of the two furrowing discs 2 are provided with a plurality of sliding grooves 21, the inner walls of the plurality of sliding grooves 21 are slidably connected to the limiting insertion rods 22, and the side walls of the two furrowing discs 2 are snap-fitted with furrowing rings 3.
[0025] A plurality of insertion holes 31 are provided on the inner side of the trenching ring 3 , and the limiting insertion rods 22 are inserted into the inner walls of the insertion holes 31 .
[0026] It should be noted that the positions of the plurality of insertion holes 31 described in this embodiment correspond one to one with the positions of the plurality of limiting insertion rods 22 .
[0027] An annular inner groove 23 and a plurality of connecting grooves 231 are provided in the trenching disc 2 . The annular inner groove 23 is connected with the inner spaces of the plurality of chute grooves 21 through the plurality of connecting grooves 231 .
[0028] It should be noted that the plurality of connecting grooves 231 and sliding grooves 21 described in this embodiment are distributed in a circular array.
[0029] The side wall of the limiting rod 22 is fixedly connected with a first piston ring 221 , and the first piston ring 221 is slidably connected to the inner wall of the corresponding sliding groove 21 .
[0030] It should be noted that the size of the first piston ring 221 described in this embodiment is larger than the opening diameter of the connecting groove 231 .
[0031] The outer sides of the trenching disc 2 and the trenching ring 3 are both provided with Teflon coatings 5 .
[0032] It should be noted that the trenching disc 2 and trenching ring 3 described in this embodiment are in contact with the soil through the Teflon coating 5, which reduces friction damage and clay adhesion in turn.
[0033] Specifically, the support frame 1 is installed on the seeder body through the arc-shaped scraper blade 12, and the arc-shaped scraper blade 12 supports each component of the device. The seeding pipe on the wheat seeder is inserted into the seed delivery hole 121 to realize the delivery of seeds. The two furrowing discs 2 are tilted and corresponding. The furrowing discs 2 and the furrowing rings 3 are used in combination. The furrowing discs 2 support the corresponding furrowing rings 3. The inner diameter of the furrowing ring 3 matches the outer diameter of the furrowing disc 2. The furrowing disc 2 accommodates a plurality of limiting rods 22 through a plurality of slide grooves 21. The limiting rods 22 can extend outward so that the limiting rods 22 can be inserted into the insertion hole 31 to realize the locking of the furrowing disc 2 and the furrowing ring 3. The annular inner groove 23 inputs air into the interior of the plurality of slide grooves 21 through a plurality of connecting grooves 231, so that the internal air pressure of the slide groove 21 increases, and the first piston ring 221 matches the inner diameter of the slide groove 21. The air pressure can push the first piston ring 221 toward the ditching ring 3, and the first piston ring 221 drives the limiting plug 22 to extend and complete the plugging work with the socket 31. When the ditching disc 2 and the ditching ring 3 are performing ditching work, the ditching ring 3 blocks the edge of the ditching disc 2, so that hard materials such as gravel in the soil will contact the ditching ring 3, and the ditching disc 2 is protected from the impact, thereby achieving the protection of the ditching disc 2 and reducing the chance of damage to the ditching disc 2. When the ditching ring 3 is worn out too much after long-term use and needs to be replaced, the gas in the annular inner groove 23 is released, so that the air pressure in the annular inner groove 23 is reduced, the limiting plug 22 is retracted into the slide groove 21, and the limiting plug 22 is withdrawn from the socket 31. The ditching disc 2 and the ditching ring 3 are unlocked, and then a new ditching ring 3 is replaced without replacing the ditching disc 2, reducing maintenance costs.
[0034] In one embodiment of the present invention, Figure 2-Figure 5 As shown, a first spring 222 is sleeved on the side wall of the limiting rod 22 , and the first spring 222 contacts one end of the corresponding first piston ring 221 .
[0035] It should be noted that the first spring 222 described in this embodiment pushes the first piston ring 221 toward the center of the trenching disc 2 .
[0036] Specifically, when the gas inside the annular inner groove 23 is released, the internal pressure of the annular inner groove 23 decreases, the first spring 222 pushes the first piston ring 221 to slide, and the first piston ring 221 drives the limiting rod 22 to retract into the inside of the trenching disc 2, thereby completing the unlocking of the trenching disc 2 and the trenching ring 3.
[0037] In one embodiment of the present invention, Figure 2-Figure 5 As shown, an inflation pipe 4 is installed on the opposite side of the two ditching plates 2. The inner wall of the inflation pipe 4 is slidably connected to a sliding pipe 41. The side wall of the sliding pipe 41 is fixedly connected to a second piston ring 42. A ventilation pipe 43 is installed between the inflation pipe 4 and the annular inner groove 23.
[0038] It should be noted that both the sliding tube 41 and the vent tube 43 described in this embodiment are provided with a one-way valve, and the one-way valve of the vent tube 43 can prevent the gas in the annular inner groove 23 from leaking.
[0039] Specifically, the trenching plate 2 supports the inflation tube 4, and the inflation tube 4 supports the sliding tube 41. By squeezing the sliding tube 41 to slide into the interior of the inflation tube 4, the sliding tube 41 can use the reaction force of the one-way valve to push the air into the annular inner groove 23, and the ventilation tube 43 conducts the air. When the sliding tube 41 slides to the outside of the inflation tube 4, the one-way valve in the ventilation tube 43 blocks the air inside the annular inner groove 23, and the external air enters the interior of the inflation tube 4 through the sliding tube 41, which is convenient for the next inflation work.
[0040] In one embodiment of the present invention, Figure 3-Figure 4 As shown, a second spring 44 is provided in the inflation tube 4 , and the second spring 44 is fixedly connected to one end of the corresponding second piston ring 42 .
[0041] It should be noted that the size of the second spring 44 described in this embodiment is slightly smaller than the inner diameter of the inflation tube 4 , and the size of the second spring 44 is larger than the opening of the sliding tube 41 .
[0042] Specifically, after squeezing the sliding tube 41 to complete a single air supply, the second spring 44 pushes the sliding tube 41 to pop out, automatically replenishing the air inside the inflation tube 4, thereby facilitating the next pushing work of the sliding tube 41.
[0043] In one embodiment of the present invention, Figures 1-4 As shown, one side of the two ditching discs 2 is threadedly connected with a screw button air plug 24, the screw button air plug 24 corresponds to the position of the annular inner groove 23, and a shielding net 46 is installed at the opening of the sliding tube 41.
[0044] It should be noted that the screw button air plug 24 described in this embodiment blocks the aperture on one side of the trenching disc 2.
[0045] Specifically, when the trenching disc 2 and the trenching ring 3 are disassembled, the air plug 24 is removed by rotating the screw button, so that the space of the annular inner groove 23 is connected with the external space, thereby releasing the pressure in the annular inner groove 23, and the trenching disc 2 and the trenching ring 3 are disassembled and separated.
[0046] In summary, the combined furrow opener for wheat sowing in the embodiment of the present invention performs furrowing work through the furrowing disc 2 and the furrowing ring 3. The furrowing ring 3 blocks the edge of the furrowing disc 2, so that hard materials such as gravel in the soil will contact the furrowing ring 3, and the furrowing disc 2 is protected from impact, thereby achieving protection of the furrowing disc 2 and reducing the chance of damage to the furrowing disc 2. When the furrowing ring 3 is worn out too much after long-term use and needs to be replaced, it is removed by rotating the screw air plug 24, so that the space in the annular inner groove 23 is connected to the external space, thereby releasing the pressure in the annular inner groove 23, and the first spring 222 pushes the first piston ring 221 to slide, and the first piston ring 221 drives the limiting rod 22 to retract into the interior of the furrowing disc 2, and the limiting rod 22 is pulled out of the insertion hole 31, and the furrowing disc 2 and the furrowing ring 3 are unlocked. Then a new furrowing ring 3 is replaced without replacing the furrowing disc 2, thereby reducing maintenance costs.
[0047] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0049] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
Claims
1. A combined furrow opener for wheat sowing, comprising a support frame (1), a mounting plate (11), an arc-shaped scraper (12), a seed placement hole (121) and two furrowing discs (2), characterized in that: The inner walls of the two ditching discs (2) are each provided with a plurality of chute grooves (21), the inner walls of the plurality of chute grooves (21) are slidably connected to limit insertion rods (22), and the side walls of the two ditching discs (2) are each snap-fitted and connected to a ditching ring (3); Wherein, a plurality of insertion holes (31) are provided on the inner side of the ditching ring (3), and the limiting insertion rod (22) is inserted into the inner wall of the insertion hole (31); An annular inner groove (23) and a plurality of connecting grooves (231) are provided in the ditching disc (2); the annular inner groove (23) is connected to the internal spaces of the plurality of chute grooves (21) through the plurality of connecting grooves (231); The side wall of the limiting rod (22) is fixedly connected with a first piston ring (221), and the first piston ring (221) is slidably connected to the inner wall of the corresponding sliding groove (21); The outer sides of the trenching disc (2) and the trenching ring (3) are both provided with a Teflon coating (5).
2. The combined furrow opener for wheat sowing according to claim 1, characterized in that: A first spring (222) is sleeved on the side wall of the limiting plug rod (22), and the first spring (222) contacts one end of the corresponding first piston ring (221).
3. The combined furrow opener for wheat sowing according to claim 1, characterized in that: An air pipe (4) is installed on one opposite side of the two ditching discs (2); a sliding pipe (41) is slidably connected to the inner wall of the air pipe (4); a second piston ring (42) is fixedly connected to the side wall of the sliding pipe (41); and a vent pipe (43) is installed between the air pipe (4) and the annular inner groove (23).
4. The combined furrow opener for wheat sowing according to claim 3, characterized in that: A second spring (44) is provided in the inflation tube (4), and the second spring (44) is fixedly connected to one end corresponding to the second piston ring (42).
5. The combined furrow opener for wheat sowing according to claim 4, characterized in that: One side of the two ditching discs (2) is threadedly connected with a screw button air plug (24), the screw button air plug (24) corresponds to the position of the annular inner groove (23), and a shielding net (46) is installed at the opening of the sliding tube (41).