Efficient collection and separation device for stipa glabra seeds
By using a backpack-type needlegrass seed collection and separation device, which combines negative pressure conveying and cyclone separation with sieving technology, the problems of low collection efficiency and difficult separation in traditional methods are solved, and efficient seed collection and separation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional methods are difficult to efficiently collect and separate seeds of Stipa spp., and they are prone to causing the collection of roots, leaves and weeds to be mixed in, resulting in low collection efficiency and difficulty in separation.
A backpack-type seed collection and separation device for *Stipa spp.* was designed, comprising a back box, a negative pressure conveying pipe, a cyclone separator, a sieve, and a guide plate. The device utilizes negative pressure conveying and cyclone separation combined with sieving technology to separate seeds from impurities.
It achieves efficient collection and separation of Stipa sylvestris seeds, reduces the mixing of roots, leaves and weeds, improves collection efficiency and quality, and is suitable for large-scale application.
Smart Images
Figure CN224069217U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of needlegrass seed collection technology, specifically relating to a device for efficient collection and separation of sand-growing needlegrass seeds. Background Technology
[0002] Stipa is a perennial, broad-leaved, densely tufted grass, a typical grassland plant with a wide ecological range. Due to its well-developed fibrous root system and physiological and ecological characteristics adapted to arid climates, collection devices are necessary when collecting its seeds. Stipa seeds are typically small, with long awns (a type of slender appendage), making them easy to attach to plants or other objects. Dispersal relies on wind or animals, and the awns facilitate seed dispersal. However, traditional collection methods are difficult, as seeds easily scatter, resulting in low collection efficiency. The awns can also cause seeds to entangle or stick together, increasing the difficulty of separation.
[0003] In addition, because the rhizomes of *Stipa spp.* are relatively fragile, the rhizomes and leaves are easily collected together during collection. Furthermore, the persistent dead leaf sheaths at the base of *Stipa spp.* and the surrounding weeds are also collected, resulting in low functionality of the collection device.
[0004] Although conventional manual data collection yields high quality, it is inefficient and not easily applied on a large scale.
[0005] Therefore, how to provide an efficient collection and separation device for seeds of *Stipa spp.* is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0006] In view of this, the present invention provides a highly efficient collection and separation device for seeds of *Stipa spp.*, which can separate impurities such as dead leaves and rhizomes while collecting *Stipa spp.* seeds. It is designed for backpack use and is easy to operate.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a device for efficient collection and separation of *Stipa spp.* seeds, comprising:
[0008] The back box is equipped with shoulder straps for easy carrying, and a storage compartment is located on the bottom side of the interior of the back box.
[0009] A negative pressure conveying pipe is connected to one side wall of the back box. One end of the negative pressure conveying pipe is fixedly connected to a collection head, which is provided with comb teeth for picking out needlegrass seeds.
[0010] A cyclone separator is fixed inside the back box. The top of the cyclone separator is connected to and communicates with the suction end of a negative pressure pump. The negative pressure pump is fixed on the top wall of the back box. The other end of the negative pressure conveying pipe passes through the box wall of the back box and is connected to and communicates with the top of the side wall of the cyclone separator. The bottom end of the cyclone separator is provided with a discharge port, and a sealing plate is connected to the discharge port.
[0011] A material screen is installed inside the back box and located below the material discharge port;
[0012] A guide plate is inclined and fixed below the sieve and guides the needlegrass seeds into the storage bin.
[0013] The beneficial effects of this invention are as follows: The backpack and shoulder straps facilitate easy carrying and operation. The needlegrass seeds collected by the harvesting head are conveyed to the cyclone separator by negative pressure. During this process, small withered leaves or debris can be initially discharged from the exhaust end of the negative pressure pump. Larger leaves and needlegrass seeds are collected together in the cyclone separator. The opening and closing of the sealing plate ensures the effectiveness of the initial negative pressure conveying and also serves as a prerequisite for the collected material to enter the sieve for further screening. The subsequent screening process can be completed by the sieve. The needlegrass seeds are collected into the storage bin by the guide plate below. Due to the difference in length between the needlegrass seeds and the roots, stems, and leaves, the seeds can fall through the sieve, while impurities are intercepted on the sieve. This invention is convenient to operate, highly efficient in collection, and can effectively screen out withered leaves and roots, ensuring the quality of seed collection.
[0014] Preferably, the bottom of the back box is rotatably connected with rollers.
[0015] The resulting technical effect is that even under heavy loads, the back box can be moved and moved around easily, reducing unnecessary manual labor.
[0016] Preferably, the negative pressure conveying pipe is a stainless steel negative pressure metal flexible hose.
[0017] The resulting technical effect is that the metal hose ensures negative pressure suction while being convenient and flexible for workers to use, making it highly versatile.
[0018] Preferably, the collection head is provided with a handle for easy handling by personnel, the collection head has a rectangular cylindrical structure, and the comb teeth are horizontally fixed on the bottom wall of the collection head.
[0019] The resulting technical effects are: the handle is easy for workers to operate and move, the comb teeth are easy to adapt to the collection of needlegrass seeds from different rhizomes, and the comb teeth can make the needlegrass seeds fall off the rhizomes during the up-and-down pulling process.
[0020] Preferably, the sealing plate is hinged to the bottom of the cyclone separator and can close the discharge port, and the bottom edge of the cyclone separator is provided with a motor for controlling the opening and closing of the sealing plate.
[0021] The resulting technical effect is that the opening and closing of the sealing plate can be controlled by a motor to complete the secondary screening and material discharge process.
[0022] Preferably, the material sieve includes a support, a screen, and a power source. The support is fixed to the inner wall of the back box, the screen is elastically connected to the support, the power source is fixed to the support, and the output end of the power source has a drive disk. One end of a rocker arm is eccentrically hinged to the drive disk, and the other end of the rocker arm is hinged to the side of the screen.
[0023] The resulting technical effect is that the sieve is the basis of the secondary screening process. It can intercept larger root and stem impurities or dead leaves, while smaller needlegrass seeds fall through the sieve, thus effectively separating seeds and impurities.
[0024] Preferably, a material removal hole is provided on one side wall of the back box and on the side corresponding to the screen, and a perforated plate is detachably connected to the material removal hole.
[0025] The resulting technical effect is that the design of the material removal hole facilitates the removal of intercepted impurities from the screen by the staff later on, and the impurities need to be removed periodically after the collection process in the storage bin.
[0026] Preferably, the inner wall of the storage silo is provided with a moisture-proof layer.
[0027] The resulting technical effect is that the moisture-proof layer ensures the dryness of the needlegrass seeds, guaranteeing smooth storage later. Attached Figure Description
[0028] Figure 1 This invention relates to the overall structure of a highly efficient collection and separation device for seeds of *Stipa sylvestris*. Figure 1 ;
[0029] Figure 2 This invention relates to the overall structure of a highly efficient collection and separation device for seeds of *Stipa sylvestris*. Figure 2 ;
[0030] Figure 3 This is a schematic diagram of the internal structure of the back box of the device for efficient collection and separation of seeds of *Stipa salsa* according to this utility model.
[0031] Figure 4 This is a schematic diagram of the sealing plate connection of a highly efficient collection and separation device for seeds of *Stipa spp.* from the present invention.
[0032] 1. Back box, 2. Shoulder strap, 3. Storage bin, 4. Unloading bin door, 5. Negative pressure conveying pipe, 6. Collection head, 7. Comb teeth, 8. Cyclone separator, 9. Negative pressure pump, 10. Drop port, 11. Sealing plate, 12. Screen, 121. Support, 122. Screen mesh, 123. Power source, 13. Guide plate, 14. Roller, 15. Handle, 16. Motor, 17. Perforated plate. Detailed Implementation
[0033] 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.
[0034] See appendix to this utility model Figures 1 to 4 According to an embodiment of the present invention, a highly efficient collection and separation device for seeds of *Stipa pulcherrima* includes:
[0035] The back box 1 is equipped with shoulder straps 2 for easy carrying. The bottom of the back box 1 has a storage bin 3. The back box 1 has a discharge bin door 4 on the side corresponding to the storage bin 3, which facilitates the subsequent collection of needlegrass seeds. Alternatively, a drawer-type material box can be installed in the storage bin 3, and the back box has a corresponding drawer opening for easy removal of materials.
[0036] The negative pressure conveying pipe 5 is connected to one side wall of the back box 1. One end of the negative pressure conveying pipe 5 is fixedly connected to the collection head 6. The collection head 6 is equipped with flexible comb teeth 7 for discharging needlegrass seeds. The negative pressure conveying pipe 5 provides a channel for conveying needlegrass seeds to the rear end. It should be noted that the negative pressure provides the power for the needlegrass seeds to move towards the cyclone separator. Its wind force is not enough to completely suspend the needlegrass seeds, but is in the range between the seed's weight and the wind force for seed movement, thus preventing the seeds from being directly drawn away by the negative pressure pump.
[0037] The cyclone separator 8 is fixed inside the back box 1. The top of the cyclone separator 8 is connected to the suction end of the negative pressure pump 9, which is fixed on the outer top wall of the back box 1. The other end of the negative pressure conveying pipe 5 passes through the box wall of the back box 1 and is connected to the top of the side wall of the cyclone separator 8. The bottom of the cyclone separator 8 is provided with a discharge port 10, and a sealing plate 11 is connected to the discharge port 10. The sealing plate can ensure that there is a negative pressure environment in the negative pressure conveying pipe when the negative pressure pump is working, so as to facilitate the conveying of needlegrass seeds into the cyclone separator. In the cyclone separator, light impurities or flying fluff can be discharged by the discharge port of the suction pump, completing the first stage of the separation process.
[0038] The material sieve 12 is installed inside the back box 1 and below the material inlet 10. The material sieve is the basis of the secondary separation filtration. It can intercept larger roots or withered grass on the screen, while the needlegrass seeds fall in an orderly manner.
[0039] The guide plate 13 is inclined and fixed below the sieve 12 and guides the needlegrass seeds into the storage bin 3.
[0040] In other embodiments, the bottom of the back box 1 is rotatably connected with rollers 14 to facilitate turnover and reduce the workload of workers.
[0041] In some other specific embodiments, the negative pressure conveying pipe 5 is a stainless steel negative pressure metal flexible hose, which has a certain degree of bending performance and can ensure that the negative pressure environment inside the pipe can smoothly convey materials.
[0042] In some other embodiments, the collecting head 6 is provided with a handle 15 for easy holding by personnel. The collecting head 6 has a rectangular cylindrical structure. The comb teeth 7 are horizontally fixed on the bottom wall of the collecting head 6. The comb teeth are made of rubber material. The adjacent teeth have a certain range of motion in adjacent directions to adapt to different roots and stems of Stipa. However, when pulled up and down, the comb teeth can effectively pull off the Stipa seeds. The pulled-off Stipa seeds are sucked into the negative pressure conveying pipe 5.
[0043] In some other embodiments, the sealing plate 11 is hinged to the bottom of the cyclone separator 8 and can close the discharge port 10. The bottom edge of the cyclone separator 8 is provided with a motor 16 for controlling the opening and closing of the sealing plate. Specifically, the deflection of the sealing plate can be controlled by meshing the output end of the motor with the gear at the end of the sealing plate support rod.
[0044] In some other specific embodiments, the sieve 12 includes a support 121, a screen 122, and a power source 123. The support 121 is fixed to the inner wall of the back box 1, and the screen 122 is elastically connected to the support 121. Specifically, the connection can be established by a spring. The power source 123 is fixed to the support 121, and the output end of the power source has a drive disk. One end of a rocker arm is eccentrically hinged to the drive disk, and the other end of the rocker arm is hinged to the middle of one end of the screen 122. It is best to reciprocate and pull the middle of the front end. The rotation of the drive disk causes the rocker arm to reciprocate and pull, thereby realizing the reciprocating shaking effect of the screen and completing the screening process.
[0045] The power source referred to in this case can be a motor or an electric telescopic rod, with the telescopic end of the electric telescopic rod directly hinged to the end of the screen.
[0046] Install necessary switches on the side wall of the back box. These switches are used to control the starting status of the negative pressure pump, power source, and motor.
[0047] The purpose of the sieve is to separate the needlegra seeds that are mixed with impurities such as roots, stems, and dead leaves, thereby achieving a secondary separation process.
[0048] In some other embodiments, a material removal hole is provided on one side wall of the back box 1 and on the side corresponding to the screen. A transparent perforated plate 17 is threaded onto the material removal hole. After a storage process is completed, the impurities on the screen can be removed as needed to facilitate the material collection process of the next storage bin.
[0049] In some other specific embodiments, a foam moisture-proof layer is provided on the inner wall of the storage bin 3. The moisture-proof design can reduce the impact of moisture on the needlegrass seeds and ensure subsequent storage.
[0050] The specific working process is as follows: During use, the sealing plate closes the material inlet, the negative pressure pump is turned on, and suction air is generated within the negative pressure conveying pipe. Workers, carrying a backpack box and holding a collection head, pluck needlegrass seeds from the needlegrass. The seeds are sent into the cyclone separator, where tiny impurities or debris are directly discharged. The cyclone separator also serves as a transitional storage space. After a period of collection, the negative pressure pump is temporarily turned off, and the motor drives the sealing plate to rotate. The material in the cyclone separator falls onto the sieve. The sieve's power source controls the screen to separate the needlegrass seeds. The seeds fall into the guide plate below, while longer or larger blades are intercepted on the screen. After this process, one collection cycle of the storage bin is completed. Impurities on the screen are removed through the scooping hole as needed. This product is easy to use and improves collection efficiency compared to manual harvesting.
[0051] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.
[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A device for efficient collection and separation of seeds of *Stipa spp.*, characterized in that, include: The back box is equipped with shoulder straps for easy carrying, and a storage compartment is located on the bottom inside the back box. A negative pressure conveying pipe is connected to one side wall of the back box. One end of the negative pressure conveying pipe is fixedly connected to a collection head, which is provided with comb teeth for picking out needlegrass seeds. A cyclone separator is fixed inside the back box. The top of the cyclone separator is connected to and communicates with the suction end of a negative pressure pump. The negative pressure pump is fixed on the top wall of the back box. The other end of the negative pressure conveying pipe passes through the box wall of the back box and is connected to and communicates with the top of the side wall of the cyclone separator. The bottom end of the cyclone separator is provided with a discharge port, and a sealing plate is connected to the discharge port. A material screen is installed inside the back box and located below the material discharge port; A guide plate is inclined and fixed below the sieve and guides the needlegrass seeds into the storage bin.
2. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 1, characterized in that, The bottom of the back box is rotatably connected to rollers.
3. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 1, characterized in that, The negative pressure conveying pipe is a stainless steel negative pressure metal flexible tube.
4. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 1, characterized in that, The collection head is equipped with a handle for easy handling by personnel. The collection head has a rectangular cylindrical structure, and the comb teeth are horizontally fixed on the bottom wall of the collection head.
5. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 1, characterized in that, The sealing plate is hinged to the bottom of the cyclone separator and can close the discharge port. The bottom edge of the cyclone separator is provided with a motor to control the opening and closing of the sealing plate.
6. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 1, characterized in that, The material sieve includes a support, a screen, and a power source. The support is fixed to the inner wall of the back box, the screen is elastically connected to the support, the power source is fixed to the support, and the output end of the power source has a drive disk. One end of a rocker arm is eccentrically hinged to the drive disk, and the other end of the rocker arm is hinged to the side of the screen.
7. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 6, characterized in that, The back box has a material removal hole on one side wall, corresponding to the side of the screen, and a perforated plate is detachably connected to the material removal hole.
8. The device for efficient collection and separation of *Stipa pulmonata* seeds according to claim 1, characterized in that, The inner wall of the storage silo is provided with a moisture-proof layer.