• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A trapping device for an egg mass of a golden apple snail is provided. The trapping device includes a support rod. A self-locking telescopic rod is fixedly connected to a 5 bottom of the support rod. The support rod is provided with a plurality of through ports. A fixing rod is slidingly inserted into one of the plurality of through ports. A side of the support rod is fixedly connected with a plurality of clamping blocks corresponding to the plurality of through ports. A clamping rod is slidingly inserted into each of the plurality of clamping blocks. A clamping sleeve is fixedly sleeved at a bottom of each 10 of the plurality of clamping blocks. An end of the clamping rod away from the clamping sleeve is fixedly connected with a pull rod. An end of the fixing rod away from the clamping rod is provided with a mounting opening. A net bag is fixedly connected to an inside of the mounting opening. The present disclosure improves installation and use efficiency of the device through adjustable arrangement of the trapping device.
    公开号:NL2027926A
    申请号:NL2027926
    申请日:2021-04-07
    公开日:2021-07-13
    发明作者:Hu Yaping；Li Xudong；Ge Xiaomin；Zhou Xu；Ding Hui；Chen Shuifei；Zhang Wenwen；Wu Yanqing；Yong Fan；Wang Le；Wu Jun；Guo Weibo
    申请人:Nanjing Institute Of Environmental Sciences Mini Of Ecology And Environment Of The People’S R；
    IPC主号:
    专利说明:

    TRAPPING DEVICE FOR AN EGG MASS OF A GOLDEN APPLE SNAIL
    TECHNICAL FIELD The present disclosure relates to the technical field of aquatic animal trapping and fishery fishing, and in particular to a trapping device for an egg mass of a golden apple snail.
    BACKGROUND ART Golden apple snails are native to the Amazon River Basin in South America. At first, they were introduced as an aquatic economic animal into the Chinese mainland. The golden apple snails were cultivated widely in Guangdong, Guangxi, Fujian and other places after 1984, and then were popularized in Zhejiang, Jiangxi, Yunnan, Sichuan and other places. Subsequently, due to a failure in marketization, the golden apple snails were abandoned and quickly spread. As a result, an explosive growth of the golden apple snails results in a disaster and seriously endangers the crops production. Currently, the golden apple snail has become a serious agricultural pest in most provinces in the south of the Yangtze River. In 2000, the golden apple snail was listed as one of 100 of the world's Worst Invasive Alien Species by the Alien Invasive Species Specialist Group of the International Union for Conservation of Nature (IUCN), and is also the only one freshwater snail of 100 of the world's Worst Invasive Alien Species. In 2003, the golden apple snail was listed into a 'blacklist' of 16 alien species firstly invading China by the State Environmental Protection Administration and the Chinese Academy of Sciences. However, in the existing patent application No. 200710071476.4 entitled "TRAP FOR GOLDEN APPLE SNAIL", a leaky trap hood is used, which is woven with wire mesh or pieces of bamboo, is a cylindrical hood and has a simple structure. The trapping device cannot be adjusted according to actual application environment, thereby affecting installation and use efficiency of the trapping device.
    SUMMARY The embodiments aim to provide a trapping device for an egg mass of a golden apple snail, which is used for solving a problem that a trapping device for an egg mass of a golden apple snail in the prior art 1s simple and the trapping device cannot be adjusted according to an actual application environment.
    In order to achieve the above-mentioned purpose, the present disclosure adopts the following technical solutions: The present disclosure provides a trapping device for an egg mass of a golden apple snail, and the trapping device includes a support rod. A self-locking telescopic rod is fixedly connected to a bottom of the support rod. The support rod is provided with multiple through ports. A fixing rod is slidingly inserted into one of the multiple through ports. A side of the support rod is fixedly connected with multiple clamping blocks corresponding to the multiple through ports one by one. A clamping rod is slidingly inserted into each of the multiple clamping blocks. A clamping sleeve is fixedly sleeved at a bottom of each of the multiple clamping blocks. An end of the clamping rod away from the clamping sleeve is fixedly connected with a pull rod. A first end of the fixing rod away from the clamping rod is provided with a mounting opening, and a net bag is fixedly connected with an inside of the mounting opening, In some embodiments, a spring may be sleeved on the clamping rod, and two ends of the spring are respectively fixedly connected to the clamping sleeve and one of the multiple clamping blocks corresponding to the clamping sleeve.
    In some embodiments, a distance between two adjacent ones of the multiple through ports may be Scm. In some embodiments, an aperture of the net bag may be 0.5cm*0.5cm.
    In some embodiments, a second end of the fixing rod close to the support rod may be fixedly sheathed with a limiting sleeve. In some embodiments, a bottom of the self-locking telescopic rod may be fixedly connected with a wedge block.
    Compared with the prior art, the embodiments have the following technical effects.
    1. Firstly, the fixing rod is inserted into a corresponding through port at a height according to an application environment, then the fixing rod is fixed by the clamping rod; and furthermore, the spring can provide a certain elastic support for the clamping rod. A golden apple snail can enter the net bag through the support rod. In the embodiments, the installation and use efficiency of the trapping device 1s improved by means of adjustable arrangement of the trapping device.
    2. In addition, by the self-locking telescopic rod, a height of the support rod can be conveniently adjusted. The clamping sleeve can prevent the clamping rod from falling off from a corresponding clamping block; furthermore, the limiting sleeve can prevent the fixing rod from shaking, and the wedge block can conveniently fix the support rod.
    BRIEFT DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic structural diagram of a trapping device for an egg mass of a golden apple snail according to the present disclosure; Fig. 2 is an enlarged diagram of a portion marked with A in Fig. 1. List of the reference characters: 1 support rod; 2 fixing rod; 3 clamping block; 4 clamping rod; 5 clamping sleeve; 6 pull rod; 7 net bag; 8 spring; 9 limiting sleeve; 10 wedge block; and 11 self-locking telescopic rod.
    DETAILED DESCRIPTION OF THE EMBODIMENTS The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only a part of embodiments of the present disclosure, and not all of the embodiments. Referring to Figs. 1 and 2, a trapping device for an egg mass of a golden apple snail includes a support rod 1. A self-locking telescopic rod 11 1s fixedly connected to a bottom of the support rod 1 and is configured for adjusting a height of the support rod 1. The support rod 1 is provided with multiple through ports. A fixing rod 2 is slidingly inserted into one of the multiple through ports and is configured for supporting a net bag 7. A side of the support rod 1 is fixedly connected with multiple clamping blocks 3 corresponding to the multiple through ports one by one, for supporting a clamping rod
    4. The clamping rod 4 is slidably inserted into the respective multiple clamping block 3. A clamping sleeve 5 is fixedly sleeved at a bottom of the respective clamping rod 4. An end of the clamping rod 4 away from the clamping sleeve 5 is fixedly connected with a pull rod 6 for pulling the clamping rod 4 conveniently. A first end of the fixing rod 2 away from the clamping rod 4 is provided with a mounting opening. The net bag 7 is fixedly connected with an inside of the mounting opening, and is configured for collecting an egg mass of the golden apple snail. In the embodiment, a spring 8 is sleeved on the clamping rod 4. Two ends of the spring 8 are respectively fixedly connected to the clamping sleeve 5 and one of the multiple clamping blocks 3 corresponding to the clamping sleeve 5, to provide a certain elastic support for the clamping rod 4. A distance between two adjacent ports of the multiple through ports is 5cm. An aperture of the net bag 7 is 0.5cmx0.5cm. A second end of the fixing rod 2 close to the support rod 1 is fixedly sleeved by a limiting sleeve 9 for preventing the fixing rod 2 from sliding. A bottom of the self-locking telescopic rod 11 is fixedly connected with a wedge block 10 for facilitating the fixing of the support rod I. In the embodiment, firstly, the fixing rod 2 is inserted into the corresponding through port at a height according to an application environment. Then, the fixing rod 2 is fixed by the clamping rod 4, and, the spring 8 can provide a certain elastic support for the clamping rod 4. Then, the golden apple snails may enter the net bag 7 through the support rod 1. In addition, the clamping sleeve 5 can prevent the clamping rod 4 from falling off trom a corresponding clamping block 3. Furthermore, the limiting sleeve 9 can prevent the fixing rod 2 from shaking, and the wedge block 10 can facilitate the fixing of the support rod 1. A method for assessing a density of golden apple snails in a natural ecosystem using the device of the present disclosure is as follows.
    Particular Assessment Principle A female golden apple snail lays one egg mass each time. A time interval between two spawnings is 1-8 days, and a ratio of female snails to male snails in a natural ecosystem
    1s 1:1. In a certain natural ecosystem, five sampling points are selected according to a five-point method. Four quadrats of Smx5m are respectively provided at each of the five sampling points. One quadrat is randomly selected at each of the five sampling points. Each selected quadrat is divided into 25 small quadrats of 1mx1m. A collection device 5 for an egg mass of a golden apple snail is inserted into each of the 25 small quadrats. The egg masses are collected after 24h to obtain a total number of egg masses Q, and a density of golden apple snails in the natural ecosystem is estimated to be m=2Q/125. The above-mentioned description is only preferred embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. All equivalent replacements or changes made by any person skilled in the art within the technical scope disclosed by the present disclosure, according to the technical solutions of the present disclosure and the inventive concept thereof, should be covered within the scope of protection of the present disclosure.
    CROSS REFERENCE TO RELATED APPLICATION This patent application claims the benefit and priority of Chinese Patent Application No.
    202010266986.2 filed on April 7, 2020, the disclosure of which is incorporated by reference herein in its entirety as part of the present application.
    权利要求:
    Claims (6)
    [1]
    -6- Conclusions l. Golden apple snail egg mass catching device comprising a support rod (1), wherein a self-locking extendable rod (11) is fixedly connected to a bottom side of the support rod (1), the support rod (1) of a plurality of through-ports provided, a fixing rod (2) is slidably inserted into one of the plurality of ports, one side of the support rod (1) is fixedly connected to a plurality of clamping blocks (3) corresponding one to one with the plurality of through-ports, a clamping rod (4) is slidably inserted into each of the plurality of clamping blocks (3), a clamping bush (5) is fixedly sheathed on the underside of each of the plurality of clamping blocks (3), an end of the clamping rod (4) extending from the clamping bush (5) is fixedly connected to a tension rod (0), a first end of the fastening rod (2) which is located away from the clamping rod (4), is provided with a mounting opening and a net bag (7) is firmly connected is with an inside of the mounting hole.
    [2]
    A golden apple snail egg mass catching device according to claim 1, wherein a spring (8) encases the clamping rod (4), and two ends of the spring (8) are fixedly connected to the clamping bush (5) and one of the clamps, respectively. plurality of clamping blocks (3) corresponding to the clamping bush (5).
    [3]
    The golden apple snail egg mass trap according to claim 1, wherein a distance between two adjacent ports of the plurality of through ports is 5 cm.
    [4]
    The egg mass trapping device of a golden apple snail according to claim 1, wherein an opening of the net bag (7) is 0.5 cm x 0.5 cm.
    [5]
    A golden apple snail egg mass catching device according to claim 1, wherein a second end of the attachment rod (2) near the support rod (1) is rigidly sheathed by a limiting sleeve (9).
    [6]
    A golden apple snail egg mass trap according to claim 1,
    -7- wherein a bottom side of the self-locking extendable rod (11) is rigidly connected to a wedge block (10).
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    同族专利:
    公开号 | 公开日
    CN111280134A|2020-06-16|
    NL2027926B1|2021-11-09|
    AU2021101740A4|2021-05-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CN202010266986.2A|CN111280134A|2020-04-07|2020-04-07|Pomacea canaliculata egg mass trapping device|
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