LU501644B1 - Falling trap device for alien invasive turtles and application thereof - Google Patents

Falling trap device for alien invasive turtles and application thereof Download PDF

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Publication number
LU501644B1
LU501644B1 LU501644A LU501644A LU501644B1 LU 501644 B1 LU501644 B1 LU 501644B1 LU 501644 A LU501644 A LU 501644A LU 501644 A LU501644 A LU 501644A LU 501644 B1 LU501644 B1 LU 501644B1
Authority
LU
Luxembourg
Prior art keywords
turtles
trap
application
falling
spring back
Prior art date
Application number
LU501644A
Other languages
French (fr)
Inventor
Haigen Xu
Chenbin Wang
Yiqing Lu
Yanjing Zhang
Fangzhou Ma
Original Assignee
Nanjing Institute Of Environmental Sciences Mini Of Ecology And Environment Of The Peoples Republic
Foreign Environmental Cooperation Center Mini Of Ecology And Environment
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Institute Of Environmental Sciences Mini Of Ecology And Environment Of The Peoples Republic, Foreign Environmental Cooperation Center Mini Of Ecology And Environment filed Critical Nanjing Institute Of Environmental Sciences Mini Of Ecology And Environment Of The Peoples Republic
Priority to LU501644A priority Critical patent/LU501644B1/en
Application granted granted Critical
Publication of LU501644B1 publication Critical patent/LU501644B1/en

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K69/00Stationary catching devices
    • A01K69/06Traps
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01MCATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M23/00Traps for animals
    • A01M23/02Collecting-traps
    • A01M23/04Collecting-traps with tipping platforms

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Engineering & Computer Science (AREA)
  • Insects & Arthropods (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Catching Or Destruction (AREA)

Abstract

This invention provides a falling trap device for alien invasive turtles and its application. The device uses an approximate circular floater constituted by a floating ring, a spring back roller and a wooden trap door, the outer rim of the floater inclines gradually to level with the water surface, forming a slope that attracts turtle to climb to the wooden trap door, which would flip down by sharp 90 degrees under action of gravity by the climbing turtle. The barrel stainless steel net cage with open top face is built underneath the floater to prevent the caught turtle from escaping and block the entry of other medium and large aquatic organisms. The spring back roller springs back after turtles falls, realizing the repeat use for trapping the invasive turtles. The invention is durable with strong corrosion resistance and low maintenance cost, it has a wide range of application in the fields of alien invasive organisms control, biodiversity conservation research, and popular science teaching aids market, its market prospect is broad and promising.

Description

DESCRIPTION LU501644 Falling trap device for alien invasive turtles and application thereof
TECHNICAL FIELD The invention relates to the field of scientific and educational equipment, in particular to a falling trap device for preventing and controlling alien invading turtles and application thereof.
BACKGROUND China is one of the countries that suffers the most by alien invasive species in the world. Alien invasive freshwater turtles have been identified as the main invasive species of wetland ecosystem in China. Traditional fishing methods are extremely inefficient, while the application of chemical control methods in fresh water causes collateral fatality for a large number of non-target aquatic species, hence damaging the entire aquatic ecosystems. The invention relates to a trapping device for alien invasive freshwater turtles and application thereof, which can effectively trap the turtles, realizing prevention and control of alien invasive freshwater turtles.
SUMMARY The invention relates to a trapping device for alien invasive freshwater turtles and application thereof, which can effectively trap the turtles, realizing prevention and control of alien invasive freshwater turtles. The other purpose of this invention is to provide the application of trapping device for alien invasive freshwater turtles.
The falling trap device for alien invasive turtles is comprised of net cage, floater, two spring back rollers or more, two wooden trap doors or more, the number of rebound rollers is the same as that of trap doors, wherein, the top face of the net cage is open, the floating ring is fixed on the periphery of the top of the net cage, and the diameter of the net cage is the same as the inner diameter of the floating ring. The 1
DESCRIPTION LU501644 body of the floating ring is a slope gradually inclines from the inner circumference to the outer.
The spring back roller is comprised of spring and elastic sheet, wherein the spring is positioned inside of the spring back roller, and there are elastic sheets installed on both ends of the spring. The spring back roller is installed at the middle line of the inner surface of the floating ring, one elastic sheet is vertically fixed on the inner surface of the floating ring in the horizontal direction, the other elastic sheet on the spring back roller fixes trap door in the horizontal direction.
The spring back roller is comprised of spring and elastic sheet, wherein the spring is positioned inside of the spring back roller, and there are elastic sheets installed on both ends of the spring. The spring back roller is installed at the middle line of the inner surface of the floating ring, one elastic sheet is vertically fixed on the inner surface of the floating ring in the horizontal direction, the other elastic sheet on the spring back roller fixes trap door in the horizontal direction.
According to the specific embodiment of the invention, the net cage is made of stainless steel.
According to the specific embodiment of the invention, the mesh density of the cage is 5-500 meshes, the diameter of the steel wire is 0 .1 mm to 0 .6 mm, and the diameter of mesh is 0.15 MM to 4 .5 mm.
According to the specific embodiment of the invention, the trap door is one-eighth round plates, 8 spring back rollers respectively fix 8 trapping doors in horizontal positions, forming an approximately circular movable seal which is filled in the floating ring, which can make turtles confuse it with floating wood, inducing them to climb up on top, hence falling into the net cage, implementing the trap.
The invention has a wide range of application in the fields of alien invasive organisms control, biodiversity conservation research, and popular science teaching aids market, its market prospect is broad and promising.
This invention differs the prior art of netting and fishing alien invasive turtles, using an approximate circular floater constituted by a floating ring, a spring back roller and a wooden trap door, the outer rim of the floater inclines gradually to level with the water surface, forming a slope that attracts turtle to climb to the wooden trap door.
2
DESCRIPTION LU501644 This invention uses the wooden trap door, which would flip down by sharp 90 degrees under action of gravity by the climbing turtle, to trap turtle in the stainless.
The invention uses the barrel stainless steel net cage with open top face that is built underneath the floater to prevent the trapped turtle from escaping and block the entry of other medium and large aquatic organisms. The spring back roller springs back after turtles falls, realizing the repeat use for trapping the invasive turtles.
The invention is durable with strong corrosion resistance and low maintenance cost, it has a wide range of application in the fields of alien invasive organisms control, biodiversity conservation research, and popular science teaching aids market, its Market prospect is broad and promising.
BRIEF DESCRIPTION OF THE FIGURES Figure 1 is schematic diagram of falling trap device for alien invasive turtles Figure 2 is schematic diagram of rebound roller Reference number of Figures 1-Net Cage, 2-Floating ring, 3-Spring back roller, 4-Trap door, 3-1 Spring, 3-2 Elastic sheet
DESCRIPTION OF THE INVENTION Embodiment 1 As figure 1 shown, falling trap device for alien invasive turtles comprises of: net cage 1, floating ring 2, spring back roller 3, trap door 4, wherein, the net cage has an open top, the floating ring 2 is fixed on the periphery of the top of the net cage, and the diameter of the net cage 1 is the same as the inner diameter of the floating ring 2. The body of the floating ring 2 is a slope gradually inclines from the inner circumference to the outer.
As figure 2 shown, the spring back roller 3 is comprised of spring 3-1 and elastic sheet 3-2, wherein the spring is positioned inside of the spring back roller 3, and there are elastic sheets 3-2 installed on both ends of the spring 3-1. The spring back roller 2 is installed at the middle line of the inner surface of the floating ring 2, one elastic sheet 3-2 is vertically fixed on the inner surface of the floating ring 2 in the horizontal 3
DESCRIPTION LU501644 direction, the other elastic sheet 3-2 on the spring back roller fixes trap door 4 in the horizontal direction.
All trap doors 4 form an approximately circular movable seal which is filled in the floating ring 2, turning down 90 degrees under the action of gravity incited by falling turtle, and rebound to a horizontal position under the elastic force of the spring back roller after losing gravity.
This invention provides a falling trap device for alien invasive turtles, the net cage 1 is stainless steel net cage, which is in barrel shape, and can be composed by material with different specifications, wherein, the mesh density of stainless steel net cage can be 5-500 meshes, the diameter of steel wire is 0 .1 mm to 0 .6 mm, and the diameter of mesh is 0 .15 mm to 4 .5 mm, the top of net cage is flush and tightly fixed with the floating ring 2. The diameter of that stainless steel net cage is the same as the inn diameter of the floating ring 2.
According to the falling trap device for alien invasive turtles of the present invention, the trap door 4 is a wooden flap.
According to the falling trap device for alien invasive turtles of the present invention, the spring back roller 3 is installed with an internal spring, The trap door 4 are one-eighth round wooden plates, and eight spring back rollers 3 fix the eight trap doors 4 in horizontal positions respectively to form an approximately round movable seal which is filled in the floating ring 2, which can confuse turtles to climb on the floating ring 2 and then fall into the net cage to realize trapping.
The trapping device for preventing and controlling alien invasive freshwater turtles is applied in the fields of alien invasive biological prevention and control, environmental indicator biological monitoring, biodiversity conservation research and science and education.
The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the above specific embodiments, which are only illustrative, not restrictive. Under the inspiration of the present invention, ordinary technicians in the field can make many forms without departing from the scope of protection defined by the claims, which belong to the protection of the present invention.
4

Claims (7)

CLAIMS LU501644
1. Falling trap device for alien invasive turtles and its application is characterized in that the device is constituted by net cage, floater, two spring back rollers or more, two wooden trap doors or more, the number of rebound rollers is the same as that of trap doors, wherein, the top face of the net cage is open, the floating ring is fixed on the periphery of the top of the net cage, and the diameter of the net cage is the same as the inner diameter of the floating ring, The body of the floating ring is a slope gradually inclines from the inner circumference to the outer, The spring back roller is comprised of spring and elastic sheet, wherein the spring is positioned inside of the spring back roller, and there are elastic sheets installed on both ends of the spring. The spring back roller is installed at the middle line of the inner surface of the floating ring, one elastic sheet is vertically fixed on the inner surface of the floating ring in the horizontal direction, the other elastic sheet on the spring back roller fixes trap door in the horizontal direction, All trap doors form an approximately circular movable seal which is filled in the floating ring, turning down 90 degrees under the action of gravity incited by falling turtle, and rebound to a horizontal position under the elastic force of the spring back roller after losing gravity.
2. Falling trap device for alien invasive turtles and its application is characterized in that the mesh density of the net cage is 5-500 meshes.
3. Falling trap device for alien invasive turtles and its application is characterized in that the net cage is made of stainless steel.
4. Falling trap device for alien invasive turtles and its application is characterized in that the diameter of the steel wire is 0 .1 mm to 0 .6 mm, and the diameter of mesh is0.15mmto4.5mm.
5. Falling trap device for alien invasive turtles and its application is characterized in that the trap door is made of wood
6. Falling trap device for alien invasive turtles and its application is characterized in that the trap door is one-eighth round plates, 8 spring back rollers respectively fix 8 trapping doors in horizontal positions. 5
CLAIMS LU501644
7. The content described in claim 1 as the application of Falling trap device for alien invasive turtles. 6
LU501644A 2022-03-10 2022-03-10 Falling trap device for alien invasive turtles and application thereof LU501644B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LU501644A LU501644B1 (en) 2022-03-10 2022-03-10 Falling trap device for alien invasive turtles and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU501644A LU501644B1 (en) 2022-03-10 2022-03-10 Falling trap device for alien invasive turtles and application thereof

Publications (1)

Publication Number Publication Date
LU501644B1 true LU501644B1 (en) 2022-09-12

Family

ID=83231029

Family Applications (1)

Application Number Title Priority Date Filing Date
LU501644A LU501644B1 (en) 2022-03-10 2022-03-10 Falling trap device for alien invasive turtles and application thereof

Country Status (1)

Country Link
LU (1) LU501644B1 (en)

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Effective date: 20220912