CN107306865A - A kind of spraying method of fishery device for feeding fish bait - Google Patents
A kind of spraying method of fishery device for feeding fish bait Download PDFInfo
- Publication number
- CN107306865A CN107306865A CN201710682323.7A CN201710682323A CN107306865A CN 107306865 A CN107306865 A CN 107306865A CN 201710682323 A CN201710682323 A CN 201710682323A CN 107306865 A CN107306865 A CN 107306865A
- Authority
- CN
- China
- Prior art keywords
- feed
- bait
- feeding
- air supply
- baiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 20
- 241000251468 Actinopterygii Species 0.000 title 1
- 239000008188 pellet Substances 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/80—Feeding devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
本发明实施方式公开了一种渔业投饵机的喷撒方法,该方法包括:投饵控制中心控制风机在电磁推拉进料门打开前启动,产生输送气流和在进料口区域的局部负压,投饵控制中心随后控制电磁推拉进料门间歇性打开,储料斗内颗粒饲料在负压和重力作用下由进料口被吸入下方的送风道;送风道内饲料在风机产生的输送气流作用下沿送风道向出料口加速运动,出料口的平滑导向结构设计使得匀速直线运动的颗粒饲料调整方向,最终均匀喷撒到投饵机正前方的扇形区域。此发明有效解决了传统投饵机利用高速回转金属叶片打击饲料颗粒,使之获得抛出速度而产生的饲料破碎率高问题,既提高了饲料利用率,又避免了由破碎饲料造成的污染水体情况发生。
The embodiment of the present invention discloses a spraying method of a fishery bait throwing machine, the method includes: the bait throwing control center controls the fan to start before the electromagnetic push-pull feed door is opened to generate conveying air flow and local negative pressure in the feed inlet area , the bait feeding control center then controls the electromagnetic push-pull feed door to open intermittently, and the granular feed in the storage hopper is sucked into the air supply channel below by the feed port under the action of negative pressure and gravity; Under the action, it accelerates along the air supply channel to the discharge port, and the smooth guide structure design of the discharge port makes the uniform-speed linear motion pellet feed adjust the direction, and finally evenly spray to the fan-shaped area directly in front of the bait feeder. This invention effectively solves the problem of high feed crushing rate caused by the traditional bait feeding machine using high-speed rotating metal blades to hit feed particles to obtain throwing speed. It not only improves the utilization rate of feed, but also avoids polluting water caused by broken feed Situation happens.
Description
技术领域technical field
本发明涉及渔业养殖技术领域,具体而言,涉及一种基于气流输送的渔业投饵方法。The invention relates to the technical field of fish farming, in particular to a fishery feeding method based on airflow conveying.
背景技术Background technique
传统投饵机利用高速回转金属叶片打击饲料颗粒,使之获得抛出速度后抛撒到前方水域。由于抛出速度在打击瞬间获得,造成颗粒饲料破损率高,进而产生污染水体、饲料利用率降低问题。The traditional bait throwing machine uses high-speed rotating metal blades to hit the feed particles, so that they can gain throwing speed and then throw them to the waters in front. Since the throwing speed is obtained at the moment of impact, the damage rate of the pellet feed is high, which in turn causes the problems of polluting the water body and reducing the utilization rate of the feed.
发明内容Contents of the invention
本发明的目的在于解决现有渔业投饵机大量产生颗粒破碎的问题,提供一种包括气力输送、负压进料、平滑导向的渔业投饵机喷撒方法,即不产生颗粒破碎,又免去了设计及安装电机驱动抛料盘这个高速回转机构。The purpose of the present invention is to solve the problem that a large number of particles are broken by existing fishery baiters, and to provide a spraying method for fishery baiters that includes pneumatic conveying, negative pressure feeding, and smooth guidance, which does not cause particle breakage and avoids particle breakage. Went to design and install the high-speed rotary mechanism of the motor-driven throwing tray.
为达到上述目的,本发明提出了一种渔业投饵机的喷撒方法,包括以下步骤:In order to achieve the above object, the present invention proposes a spraying method of a fishery bait thrower, comprising the following steps:
投饵控制中心控制送风道一端的风机,在T0时刻启动,产生输送气流和在进料口区域的局部负压;The bait feeding control center controls the fan at one end of the air supply duct, and starts it at T0 time to generate conveying air flow and local negative pressure in the feed inlet area;
送风道与上方储料斗的连接处,由控制中心控制的电磁推拉进料门在T0+D0时刻打开,储料斗内颗粒饲料在自身重力和进料口负压的双重作用下,被吸入送风道,开始持续D1秒的下料;At the connection between the air supply duct and the upper storage hopper, the electromagnetic push-pull feed door controlled by the control center is opened at T0+D0, and the granular feed in the storage hopper is sucked and sent under the double action of its own gravity and the negative pressure of the feed inlet. The air duct starts to unload for D1 seconds;
颗粒饲料进入送风道后,在输送气流作用下沿送风道向出料口运动过程中逐渐达到喷撒速度;After the pellet feed enters the air supply channel, under the action of the conveying air flow, it gradually reaches the spraying speed during the movement along the air supply channel to the discharge port;
出料口的平滑导向结构设计使得达到喷撒速度的颗粒饲料在出料口调整方向,向上、向两侧进行喷撒,形成散布均匀的扇形落点区域;The smooth guide structure design of the outlet allows the pellet feed that has reached the spraying speed to adjust its direction at the outlet, and spray upward and to both sides to form a fan-shaped drop point area that is evenly distributed;
电磁推拉进料门在T0+D0+D1时刻关闭,停止下料,完成一个投饵周期的投饵任务;The electromagnetic push-pull feeding door is closed at T0+D0+D1 time, stops feeding, and completes the baiting task of a baiting cycle;
电磁推拉进料门关闭D2时间段后重新打开,开始下一个投饵周期,每个投饵周期时间段为D1+D2,即关闭D2秒,开启D1秒;周而复始,直到完成控制中心计算得来的投饵量喷撒任务时,结束本次自动投饵。The electromagnetic push-pull feed door closes the D2 time period and then reopens to start the next baiting cycle. The time period of each baiting cycle is D1+D2, that is, it is closed for D2 seconds and opened for D1 seconds; it goes round and round until the calculation of the control center is completed. When the baiting amount is sprayed, the automatic baiting will end this time.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only the present invention For some embodiments of the present invention, those skilled in the art can also obtain other drawings according to these drawings without paying creative efforts.
图1是本发明实施例中的一种渔业投饵机的喷撒方法流程示意图;Fig. 1 is a schematic flow chart of a spraying method of a fishery bait throwing machine in an embodiment of the present invention;
图2是本发明实施例中的投饵机示意图,包括进料口、气流输送、喷撒装置等;Fig. 2 is a schematic diagram of a bait feeding machine in an embodiment of the present invention, including a feeding port, air conveying, spraying device, etc.;
图3是本发明实施例中的出料口示意图;Fig. 3 is a schematic diagram of a discharge port in an embodiment of the present invention;
图4是本发明实施例中的一个投饵周期时间轴示意图。Fig. 4 is a schematic diagram of a time axis of a baiting cycle in an embodiment of the present invention.
具体实施方式detailed description
下面将结合本发明实施例中的附图,对本发明实施中的技术方案进行清楚、完整的描述,显然,描述的实施例仅仅是本发明一部分实施例,而不是全部实施例。基于本发明中的实施例,本领域普通技术人员在没有付出创造性劳动前提下所获得的其他实施例,都属于本发明保护的范围。The technical solutions in the implementation of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.
图1是本发明实施例中的一种渔业投饵机的喷撒方法流程示意图。如图1所示,该方法包括:Fig. 1 is a schematic flowchart of a spraying method of a fishery bait throwing machine in an embodiment of the present invention. As shown in Figure 1, the method includes:
S101:控制中心依据从传感器、养殖数据库收集的数据信息,通过算法计算出投饵量、投饵周期等,控制送风道一端的风机在T0时刻启动,产生输送气流和在进料口区域的局部负压;S101: Based on the data information collected from sensors and breeding databases, the control center calculates the amount of feeding, feeding cycle, etc. through algorithms, and controls the fan at one end of the air supply duct to start at time T0 to generate conveying air flow and air flow in the feed inlet area. local negative pressure;
S102:送风道与上方储料斗的连接处,由控制中心控制的电磁推拉进料门在T0+D0时刻打开,储料斗内颗粒饲料在自身重力和进料口负压的双重作用下,被吸入送风道,开始持续D1秒的下料;S102: At the connection between the air supply duct and the upper storage hopper, the electromagnetic push-pull feed door controlled by the control center is opened at T0+D0, and the pellet feed in the storage hopper is released under the dual action of its own gravity and the negative pressure of the feed inlet. Inhale the air supply duct, and start the unloading that lasts for D1 seconds;
S103:颗粒饲料进入送风道后,在输送气流作用下沿送风道向出料口运动过程中逐渐达到喷撒速度;出料口的平滑导向结构设计使得达到喷撒速度的颗粒饲料在出料口调整方向,向上、向两侧进行喷撒,形成散布均匀的扇形落点区域;S103: After the pellet feed enters the air supply channel, it gradually reaches the spraying speed during the movement along the air supply channel to the discharge port under the action of the conveying air flow; Adjust the direction of the feed port, spray upward and to both sides to form a fan-shaped drop area that is evenly distributed;
S104:电磁推拉进料门在T0+D0+D1时刻关闭,停止下料,完成一个投饵周期的投饵任务;电磁推拉进料门关闭D2时间段后重新打开,开始下一个投饵周期,每个投饵周期时间段为D1+D2,即关闭D2秒,开启D1秒;周而复始,直到完成控制中心计算得来的投饵量喷撒任务时,结束本次自动投饵。S104: The electromagnetic push-pull feeding door is closed at the time T0+D0+D1, stop feeding, and complete the bait feeding task of a bait feeding cycle; the electromagnetic push-pull feeding door is closed after the D2 time period and reopens to start the next bait feeding cycle, The time period of each feeding cycle is D1+D2, that is, turn off D2 seconds, turn on D1 seconds; repeat, until the completion of the spraying task of feeding amount calculated by the control center, the automatic feeding will end.
图2是本发明实施例中的投饵机进料口、气流输送、喷撒装置示意图。如图2所示,该方法包括:Fig. 2 is a schematic diagram of the feed inlet, air conveying and spraying device of the bait throwing machine in the embodiment of the present invention. As shown in Figure 2, the method includes:
储料箱上部分是圆柱形,下部分是圆锥形,颗粒饲料在重力作用下由上向下滑移;圆锥形储料箱下边固结曲线托板,颗粒料在托板上自然堆积并形成堆积角,在送风管内无风情况下,颗粒料由于曲线托板支撑作用,不会下落到送风管内;曲线托板在送风管内的面积占送风管面积的1/2。The upper part of the storage box is cylindrical, and the lower part is conical. The pellet feed slides from top to bottom under the action of gravity; the lower side of the conical storage box is consolidated with a curved pallet, and the pellets are naturally accumulated on the pallet and formed. Accumulation angle, when there is no wind in the air supply pipe, the granular material will not fall into the air supply pipe due to the support of the curved supporting plate; the area of the curved supporting plate in the air supply pipe accounts for 1/2 of the area of the air supply pipe.
风机直通送风管并持续送风;The fan is directly connected to the air supply pipe and continuously supplies air;
送风管内气流在曲线托板下方被挤压,在负压进料区由于气流空间突然扩大一倍,局部形成负压;自然堆积的颗粒料在重力和负压吸力的双重作用下,进入送风管并被气流挟带向出料口快速移动。The air flow in the air supply pipe is squeezed under the curved support plate, and in the negative pressure feeding area, due to the sudden expansion of the air flow space, a local negative pressure is formed; the naturally accumulated particles enter the feeding area under the double action of gravity and negative pressure suction. The air duct is carried by the airflow and moves quickly to the discharge port.
图3是本发明实施例中的出料口示意图。如图3所示,该方法包括:出料口一端与送风管相连,另外一端分平均分割并旋转弯曲成3个引导叶片自由展开;中间叶片中间隆起,隆起末端曲线与水平夹角为45°;两侧叶片自由弯曲并旋转,末端与中心线夹角30°;在风机功率1kw,转速10000转/min的情况下,曲面弯曲出料口设计可以实现颗粒料抛撒后的散落中心点距离出料口7米,散落中心点处的散落宽度7米,且散布均匀。Fig. 3 is a schematic diagram of the discharge port in the embodiment of the present invention. As shown in Figure 3, the method includes: one end of the outlet is connected to the air supply pipe, and the other end is divided evenly and rotated and bent to form three guide blades to expand freely; the middle blade is raised in the middle, and the angle between the curved end of the raised end and the horizontal is 45° °; the blades on both sides are free to bend and rotate, and the angle between the end and the center line is 30°; when the fan power is 1kw and the speed is 10,000 rpm, the design of the curved discharge outlet can realize the distance from the center point of the pellets after they are scattered The discharge outlet is 7 meters, and the scattering width at the center point of the scattering is 7 meters, and the spreading is uniform.
图4是本发明实施例中的一个投饵周期时间轴示意图。如图4所示,该方法包括:在风机持续工作的前提下,通过电磁推拉门的开时间段D1、闭时间段D2,完成一个10S的投饵周期;控制中心依据投饵速度(g/s)、投饵量(kg)确定D1、D2在一个周期内的长短比例。Fig. 4 is a schematic diagram of a time axis of a baiting cycle in an embodiment of the present invention. As shown in Figure 4, the method includes: under the premise that the fan continues to work, complete a 10S bait feeding cycle through the opening time period D1 and closing time period D2 of the electromagnetic sliding door; the control center bases the bait feeding speed (g/ s), feeding amount (kg) to determine the length ratio of D1 and D2 in a cycle.
本领域普通技术人员可以理解:附图只是一个实施例的示意图,附图中的模块或流程不一定是实施本发明所必须的。Those skilled in the art can understand that the accompanying drawing is only a schematic diagram of an embodiment, and the modules or processes in the accompanying drawing are not necessarily necessary for implementing the present invention.
最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710682323.7A CN107306865A (en) | 2017-08-10 | 2017-08-10 | A kind of spraying method of fishery device for feeding fish bait |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710682323.7A CN107306865A (en) | 2017-08-10 | 2017-08-10 | A kind of spraying method of fishery device for feeding fish bait |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107306865A true CN107306865A (en) | 2017-11-03 |
Family
ID=60170658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710682323.7A Pending CN107306865A (en) | 2017-08-10 | 2017-08-10 | A kind of spraying method of fishery device for feeding fish bait |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107306865A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107885173A (en) * | 2017-11-06 | 2018-04-06 | 信阳农林学院 | A kind of accurate bait-throwing method of fishery cultivating based on technology of Internet of things |
CN109757418A (en) * | 2019-01-31 | 2019-05-17 | 三沙蓝海海洋工程有限公司 | A kind of boat-borne cruise type pneumatic bait caster for aquatic cage culture |
CN111685072A (en) * | 2020-06-22 | 2020-09-22 | 江苏科技大学 | Intelligent feeding system for water surface cultivation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2415602Y (en) * | 2000-04-18 | 2001-01-24 | 李锋周 | Program-controlled automatic bait feeding machine |
TWM349192U (en) * | 2008-08-29 | 2009-01-21 | Univ Nat Penghu | Automatic bait dispenser |
CN104663555A (en) * | 2013-11-26 | 2015-06-03 | 马小海 | Automatic bait casting device for standardized pond culture |
CN106305564A (en) * | 2016-08-23 | 2017-01-11 | 江苏大学 | Autonomous navigation raising and bait feeding device for river crabs and uniform bait feeding method |
CN107018938A (en) * | 2017-05-24 | 2017-08-08 | 青岛越洋水产科技有限公司 | Device for feeding fish bait is shone in the double adjustable type sprays of daily ration, feeding quantity, bait throwing in distance |
-
2017
- 2017-08-10 CN CN201710682323.7A patent/CN107306865A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2415602Y (en) * | 2000-04-18 | 2001-01-24 | 李锋周 | Program-controlled automatic bait feeding machine |
TWM349192U (en) * | 2008-08-29 | 2009-01-21 | Univ Nat Penghu | Automatic bait dispenser |
CN104663555A (en) * | 2013-11-26 | 2015-06-03 | 马小海 | Automatic bait casting device for standardized pond culture |
CN106305564A (en) * | 2016-08-23 | 2017-01-11 | 江苏大学 | Autonomous navigation raising and bait feeding device for river crabs and uniform bait feeding method |
CN107018938A (en) * | 2017-05-24 | 2017-08-08 | 青岛越洋水产科技有限公司 | Device for feeding fish bait is shone in the double adjustable type sprays of daily ration, feeding quantity, bait throwing in distance |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107885173A (en) * | 2017-11-06 | 2018-04-06 | 信阳农林学院 | A kind of accurate bait-throwing method of fishery cultivating based on technology of Internet of things |
CN109757418A (en) * | 2019-01-31 | 2019-05-17 | 三沙蓝海海洋工程有限公司 | A kind of boat-borne cruise type pneumatic bait caster for aquatic cage culture |
CN111685072A (en) * | 2020-06-22 | 2020-09-22 | 江苏科技大学 | Intelligent feeding system for water surface cultivation |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204014762U (en) | Throw something and feed machine automatically in a kind of fishpond | |
CN107306865A (en) | A kind of spraying method of fishery device for feeding fish bait | |
CN204842013U (en) | Powder spray device | |
CN101773092B (en) | Directional bait feeder | |
CN207135970U (en) | The pneumatic adaptive Autoamtic bait putting machine of proportioner and multy-way switching | |
CN105075457A (en) | Seed coater and seed agent collaborative online control device and method | |
CN206933024U (en) | A kind of automatic charging device waterborne | |
CN205657990U (en) | Corn seed coating equipment with automatically function of drying | |
CN104443455B (en) | A kind of material filling device of stability and high efficiency | |
CN209788191U (en) | A fish farming bait throwing machine | |
CN207665819U (en) | A kind of novel bait throwing device of aquaculture | |
CN2458870Y (en) | Aerodynamic pipe line type bait-putting apparatus | |
CN207519433U (en) | A kind of wind spraying aid type feeder | |
CN101695643A (en) | Coating equipment for spherical particles and coating process thereof | |
CN204643166U (en) | A kind of trace solid material conveyer | |
CN107548646A (en) | A Pneumatic Intelligent Fertilizer Discharging Device for Solid Fertilizers | |
CN206466726U (en) | A powder feeding negative pressure device | |
CN206279103U (en) | A kind of drum-type fertilizer coating device | |
CN105170389A (en) | Air knife air-blowing line spraying coater and production process thereof | |
CN205772131U (en) | Silo is closed a position machine | |
CN204482729U (en) | A kind of crawl is thrown something and fed device | |
CN208194300U (en) | A kind of pneumatic mixing apparatus for seasoning processing | |
CN205357767U (en) | Air -assisted throws and raises machine feed mechanism | |
CN209171410U (en) | fish ball spreader | |
CN219939358U (en) | Fish is bred with removing device of throwing something and feeding |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171103 |
|
WD01 | Invention patent application deemed withdrawn after publication |