Pomacea canaliculata protective net assembly for rice field irrigation opening

Abstract

The utility model discloses a pomacea canaliculata protective net assembly for a rice field irrigation opening, and relates to the technical field of agricultural ecological protection, the pomacea canaliculata protective net assembly comprises a main protective net assembly, a secondary intercepting net assembly, a primary fixed mounting device and a secondary fixed mounting device, the two ends of the main protective net assembly are mounted on the primary fixed mounting device, and the secondary intercepting net assembly is mounted on the secondary fixed mounting device. The two ends of the second-stage intercepting net assembly are installed on the second-stage fixing installation device, the main protective net assembly and the second-stage intercepting net assembly are sequentially arranged in the water flow direction, and net holes of the main protective net assembly are larger than net holes of the second-stage intercepting net assembly. The device is reasonable in design and is provided with the main protection net assembly and the fine secondary interception net assembly, and the main protection net is a thick vertical iron net and is used for intercepting large sundries and ensuring smooth water flow; the second-stage intercepting net is a fine net, is arranged in the main protective net and is used for blocking ampullaria gigas and egg masses of the ampullaria gigas. The overall design can prevent blockage and effectively intercept the ampullaria gigas.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agricultural ecological protection, more specifically to the technical field of apple snail protection net assembly for paddy field irrigation mouth. BACKGROUND

[0002] Apple snail is a hard shell soft-bodied animal of the family Ampullariidae in the order Truncatellida. Apple snail is a large individual with a complete spiral shell. It was introduced to China in 1981 and is listed as one of the first batch of invasive species in China. The first spiral layer is larger and flatter than that of a field snail, resembling an apple in shape, hence the name apple snail. Consuming raw or incompletely cooked apple snails can cause meningitis and encephalitis, resulting in symptoms such as headache, fever, and neck stiffness. In severe cases, it can lead to dementia and even death. Therefore, thorough cooking is essential when consuming apple snails. Apple snails have a wide diet, including both animals and plants, but they prefer fresh and juicy plants, especially aquatic vascular plants such as duckweed, water bamboo, lotus root, and rice. Paddy field irrigation mouth is the main channel for water to enter the paddy field, and apple snails often enter the paddy field with the water flow, causing harm to rice seedlings. Existing patents have disclosed the following technologies:

[0003] Patent No. CN217184475U, titled "Ditch apple snail collection device", discloses the following technology: a ditch apple snail collection device, including a connecting rod and a collection part arranged at the front end of the connecting rod. The collection part includes a connecting end for mounting on the front end of the connecting rod and a support arranged on the connecting end. The front end of the support is provided with a plurality of collection teeth arranged side by side and spaced apart. The spacing between the collection teeth is 1.5-30mm, and the length of the collection teeth is 3-20cm. A mesh bag is arranged on the side of the support opposite the collection teeth, forming a collection area inside the mesh bag. The entrance of the mesh bag is connected to the collection teeth, so that the apple snails collected on the collection teeth can enter the collection area inside the mesh bag. The utility model has the advantages of convenient operation, high collection efficiency, and smooth discharge of water and soil from the gaps in the device during the collection process.

[0004] Traditional protection devices and the above-mentioned patent disclosed ditch apple snail collection device are prone to being blocked by debris in the water, requiring frequent cleaning, and some devices have larger mesh holes, which cannot effectively block apple snails.

[0005] Therefore, there is an urgent need to design a protection device that can prevent apple snails from entering the paddy field, is not easily blocked, and is easy to clean. UTILITY MODEL CONTENTS

[0006] The utility model aims to solve the above technical problems by providing an apple snail protection net assembly for paddy field irrigation mouth. The purpose is to block apple snails from entering the paddy field with the water flow and protect rice seedlings.

[0007] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme:

[0008] The utility model provides a snail protection net assembly for rice field irrigation mouth, including main protection net assembly, two -stage intercept net assembly, primary fixed installation device and two -stage fixed installation device, and the both ends of main protection net assembly are installed on primary fixed installation device, and the both ends of two -stage intercept net assembly are installed on two -stage fixed installation device, and main protection net assembly and two -stage intercept net assembly are sequentially arranged along the water flow direction, and the mesh of main protection net assembly is greater than the mesh of two -stage intercept net assembly.

[0009] Specifically, the present application includes a main protection net assembly and a fine two-stage intercept net assembly. The main protection net is a vertical iron net with relatively thick meshes, which is used for intercepting large debris and ensuring smooth water flow. The two-stage intercept net is a fine net, which is arranged in the main protection net and used for blocking snails and their egg masses. The overall design can prevent clogging and effectively intercept snails.

[0010] In one embodiment, the primary fixed installation device includes two first wooden spacers vertically and symmetrically arranged on both sides of the rice field irrigation mouth, a plurality of first stainless steel fixing pieces symmetrically arranged on both sides of the main protection net assembly, and a plurality of first steel nails. The number of first steel nails is the same as the number of first stainless steel fixing pieces. Each first stainless steel fixing piece is provided with a first locking hole. Each first stainless steel fixing piece is fixed to the side wall of the rice field irrigation mouth by the first steel nail passing through the first locking hole and the corresponding first wooden spacer.

[0011] In one embodiment, the two-stage fixed installation device includes two second wooden spacers vertically and symmetrically arranged on both sides of the rice field irrigation mouth, a plurality of second stainless steel fixing pieces symmetrically arranged on both sides of the two-stage intercept net assembly, and a plurality of second steel nails. The number of second steel nails is the same as the number of second stainless steel fixing pieces. Each second stainless steel fixing piece is provided with a second locking hole. Each second stainless steel fixing piece is fixed to the side wall of the rice field irrigation mouth by the second steel nail passing through the second locking hole and the corresponding second wooden spacer.

[0012] Specifically, the primary fixed installation device and the two-stage fixed installation device have the same structure and are fixed to both sides of the rice field irrigation mouth by stainless steel fixing pieces and steel nails. The steel nails are nailed into the side wall of the rice field irrigation mouth through the stainless steel fixing pieces. If there is a deviation in the actual distance, it can be filled by wooden spacers. The main protection net assembly and the two-stage intercept net assembly are fixed to the channel wall by steel nails, which can stabilize the state of the protection net under water flow impact.

[0013] In one embodiment, the main protective net assembly comprises a semi-arc net protruding against the water flow direction and a bottom net arranged at the bottom of the semi-arc net, the semi-arc net is vertically arranged as a whole, the semi-arc net is fixed on the side wall of the irrigation opening of the paddy field through the first stainless steel fixing plate and the corresponding first wooden gasket on the first steel nail on the corresponding side, and the bottom net is horizontally laid.

[0014] Specifically, the bottom net is horizontally laid, the semi-arc net is vertically arranged, and the whole is in the shape of an inverted semi-circular sphere. The main protective net assembly is fixed around the irrigation opening through the left mounting bracket and the right mounting bracket, can effectively intercept large floating objects, and prevent blockage. The semi-arc structure can reduce the impact force of water flow on the device and prevent blockage of sundries.

[0015] In one embodiment, the semi-arc net comprises an outer frame vertically arranged and a plurality of strip-shaped rods vertically and equidistantly arranged in the outer frame, and the outer frame and the strip-shaped rods are formed by welding.

[0016] In one embodiment, the bottom net comprises a horizontal cross bar connecting the two sides of the bottom of the semi-arc net and a plurality of horizontal longitudinal rods equidistantly arranged on the horizontal cross bar, and the free ends of the horizontal longitudinal rods are welded on the edges of the bottom of the semi-arc net.

[0017] In one embodiment, the distance between the two adjacent strip-shaped rods is the same as the distance between the two adjacent horizontal longitudinal rods.

[0018] In one embodiment, the materials of the semi-arc net and the bottom net are corrosion-resistant iron or stainless steel, and the maximum size of the mesh of the semi-arc net and the bottom net is 5-10 mm.

[0019] Specifically, the main protective net assembly is composed of the semi-arc net and the bottom net, and is made of corrosion-resistant iron or stainless steel, and the maximum size of the mesh is 5-10 mm.

[0020] In one embodiment, the secondary interception net assembly is composed of a plurality of wire rods arranged in a crisscross manner and welded.

[0021] Specifically, the secondary net is a fine mesh and is installed inside the main protective net assembly (rear side in the water flow direction) and is fixedly connected with the main protective net assembly. The maximum size of the mesh is 1-2 mm, which is used for intercepting apple snails and their egg blocks, and at the same time ensures smooth water flow.

[0022] In one embodiment, the secondary interception net assembly is a planar structure, and the secondary interception net assembly is perpendicular to the ground.

[0023] The beneficial effects of the utility model are as follows:

[0024] The utility model discloses a double -deck structure of primary network and secondary network realizes the hierarchical interception of sundries and apple snail, guarantees the water flow unobstructed while effectively preventing and controlling apple snail, and the scheme is simple in structure, convenient to install, and small in cleaning workload, and is suitable for ecological protection of large -scale paddy field irrigation mouth. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the embodiment needed to use the drawing of simple introduction, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limitation of the scope, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings.

[0026] Fig. 1 It is a whole explosion map of apple snail protection net assembly for paddy field irrigation mouth.

[0027] Fig. 2 It is the main protection net assembly and installation position schematic drawing.

[0028] Fig. 3 It is secondary interception net assembly and installation position schematic drawing.

[0029] Reference signs: 1-semi-arc net piece, 2-first wooden gasket, 3-first stainless steel fixed sheet, 4-bottom net, 5-second wooden gasket, 6-second stainless steel fixed sheet, 7-secondary interception net assembly. DETAILED DESCRIPTION

[0030] In order to make the technical problem, technical scheme and technical effect of the utility model more clearly, the following will be combined with the drawing in the embodiment of the utility model, and the technical scheme in the embodiment of the utility model is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiments. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiment of the utility model provided in the drawing is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of the utility model protection.

[0032] It should be noted that similar reference numerals and letters refer to like items in the accompanying drawings, and therefore, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings. In addition, the terms "first", "second", and the like are used only to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the utility model, it should be explained that the position relationship or position relationship indicated by the terms "inner", "outer", "upper" and the like is based on the position relationship or position relationship shown in the drawings, or is the position relationship or position relationship of the utility model product when it is usually placed, which is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0034] Embodiment 1

[0035] As Figs. 1 to 3 shown, the embodiment provides a snail protection net assembly for rice field irrigation opening, which comprises a main protection net assembly, a secondary interception net assembly 7, a primary fixed installation device and a secondary fixed installation device, both ends of the main protection net assembly are installed on the primary fixed installation device, both ends of the secondary interception net assembly 7 are installed on the secondary fixed installation device, the main protection net assembly and the secondary interception net assembly 7 are sequentially arranged along the water flow direction, and the mesh of the main protection net assembly is larger than that of the secondary interception net assembly 7.

[0036] Specifically, the scheme comprises a main protection net assembly and a fine secondary interception net assembly 7, the main protection net is a relatively thick vertical iron net, which is used for intercepting large sundries and ensuring smooth water flow, and the secondary interception net is a fine net, which is arranged in the main protection net and is used for blocking snails and their egg blocks. The overall design can not only prevent blockage, but also effectively intercept snails.

[0037] Embodiment 2

[0038] As Figs. 1 to 3 shown, the embodiment provides a snail protection net assembly for rice field irrigation opening, which comprises a main protection net assembly, a secondary interception net assembly 7, a primary fixed installation device and a secondary fixed installation device, both ends of the main protection net assembly are installed on the primary fixed installation device, both ends of the secondary interception net assembly 7 are installed on the secondary fixed installation device, the main protection net assembly and the secondary interception net assembly 7 are sequentially arranged along the water flow direction, and the mesh of the main protection net assembly is larger than that of the secondary interception net assembly 7.

[0039] The first-level fixed mounting device comprises two first wooden pads 2 vertically and symmetrically arranged on both sides of the rice field irrigation opening, a plurality of first stainless steel fixing plates 3 symmetrically arranged on both sides of the main protective net assembly, and a plurality of first steel nails, the number of the first steel nails being the same as that of the first stainless steel fixing plates 3, each of the first stainless steel fixing plates 3 is provided with a first locking hole, and each of the first stainless steel fixing plates 3 is fixed to the side wall of the rice field irrigation opening by the first steel nail penetrating through the first locking hole and the corresponding first wooden pad 2.

[0040] The second-level fixed mounting device comprises two second wooden pads 5 vertically and symmetrically arranged on both sides of the rice field irrigation opening, a plurality of second stainless steel fixing plates 6 symmetrically arranged on both sides of the second-level intercepting net assembly 7, and a plurality of second steel nails, the number of the second steel nails being the same as that of the second stainless steel fixing plates 6, each of the second stainless steel fixing plates 6 is provided with a second locking hole, and each of the second stainless steel fixing plates 6 is fixed to the side wall of the rice field irrigation opening by the second steel nail penetrating through the second locking hole and the corresponding second wooden pad 5.

[0041] Specifically, the first-level fixed mounting device and the second-level fixed mounting device are the same in structure, and are fixed to both sides of the rice field irrigation opening by the stainless steel fixing plates and the steel nails, the steel nails are nailed into the side wall of the rice field irrigation opening through the stainless steel fixing plates; if there is a deviation in the actual distance, the wooden pad can be used to fill up. The main protective net assembly and the second-level intercepting net assembly 7 are fixed to the channel wall by the steel nails, and the state of the protective net under the impact of the water flow can be stabilized.

[0042] Embodiment 3

[0043] This embodiment is further optimized on the basis of Embodiment 2, specifically:

[0044] The main protective net assembly comprises a semicircular net piece 1 protruding against the water flow direction and a bottom net 4 arranged at the bottom of the semicircular net piece 1, the semicircular net piece 1 is vertically arranged as a whole, the semicircular net piece 1 is fixed to the side wall of the rice field irrigation opening by penetrating through the first steel nail, the first stainless steel fixing plate 3 and the corresponding first wooden pad 2 on the side, and the bottom net 4 is horizontally laid.

[0045] Specifically, the bottom net 4 is horizontally laid, and the semicircular net piece 1 is vertically arranged, and the whole presents an inverted semicircular spherical structure. The main protective net assembly is fixed around the irrigation opening by the left mounting bracket and the right mounting bracket, can effectively intercept large floating objects, and prevent blockage. The semicircular structure can reduce the impact force of the water flow on the device and prevent blockage of sundries.

[0046] Embodiment 4

[0047] This embodiment is further optimized on the basis of Embodiment 3, specifically:

[0048] The semi-arc net 1 comprises an outer frame arranged vertically and a plurality of strip-shaped rods arranged vertically and equidistantly in the outer frame, and the outer frame and the strip-shaped rods are formed by welding.

[0049] The bottom net 4 comprises horizontal cross bars connecting the bottom of the semi-arc net 1 on both sides and a plurality of horizontal longitudinal rods arranged equidistantly on the horizontal cross bars, and the free ends of the horizontal longitudinal rods are welded on the bottom edges of the semi-arc net 1.

[0050] The distance between the two adjacent strip-shaped rods is the same as the distance between the two adjacent horizontal longitudinal rods.

[0051] The materials of the semi-arc net 1 and the bottom net 4 are corrosion-resistant iron or stainless steel, and the maximum size of the mesh of the semi-arc net 1 and the bottom net 4 is 5-10 mm.

[0052] Specifically, the main protective net assembly is composed of the semi-arc net 1 and the bottom net 4, and is made of corrosion-resistant iron or stainless steel, and the maximum size of the mesh is 5-10 mm.

[0053] Example 5

[0054] This embodiment is further optimized on the basis of example 4, specifically:

[0055] The secondary interception net assembly 7 is composed of a plurality of wire rods arranged in a crisscross manner and welded, and the maximum size of the mesh of the secondary interception net is 1-2 mm.

[0056] Specifically, the secondary net is a fine mesh and is installed inside the main protective net assembly (rear side according to the water flow direction) and is fixedly connected with the main protective net assembly. The maximum size of the mesh is 1-2 mm, which is used for intercepting apple snails and their egg blocks, while ensuring smooth water flow.

[0057] The secondary interception net assembly 7 is a planar structure, and the secondary interception net assembly 7 is perpendicular to the ground.

Claims

1. A golden apple snail protection net assembly for irrigation opening of rice field, characterized in that, The application relates to a rice field protection device, which comprises a primary protection net assembly, a secondary interception net assembly (7), a primary fixed installation device and a secondary fixed installation device.

2. A golden apple snail protection net assembly for irrigation opening of rice field according to claim 1, characterized in that, The primary fixed installation device comprises two first wooden spacers (2) vertically and symmetrically arranged on both sides of a rice field irrigation opening, a plurality of first stainless steel fixing plates (3) symmetrically arranged on both sides of the primary protection net assembly and a plurality of first steel nails, the number of the first steel nails being the same as that of the first stainless steel fixing plates (3), each of the first stainless steel fixing plates (3) is provided with a first locking hole, and each of the first stainless steel fixing plates (3) is fixed to the side wall of the rice field irrigation opening through the first steel nail penetrating through the first locking hole and the corresponding first wooden spacer (2).

3. The golden apple snail protection net assembly for irrigation opening of rice field according to claim 1, characterized in that, The secondary fixed installation device comprises two second wooden spacers (5) vertically and symmetrically arranged on both sides of the rice field irrigation opening, a plurality of second stainless steel fixing plates (6) symmetrically arranged on both sides of the secondary interception net assembly (7) and a plurality of second steel nails, the number of the second steel nails being the same as that of the second stainless steel fixing plates (6), each of the second stainless steel fixing plates (6) is provided with a second locking hole, and each of the second stainless steel fixing plates (6) is fixed to the side wall of the rice field irrigation opening through the second steel nail penetrating through the second locking hole and the corresponding second wooden spacer (5).

4. The golden apple snail protection net assembly for irrigation opening of rice field according to claim 2, characterized in that, The primary protection net assembly comprises a semicircular net piece (1) protruding against the water flow direction and a bottom net (4) arranged at the bottom of the semicircular net piece (1), the semicircular net piece (1) is vertically arranged as a whole, the semicircular net piece (1) is fixed to the side wall of the rice field irrigation opening through the first steel nail penetrating through the first stainless steel fixing plate (3) and the corresponding first wooden spacer (2) on the side, and the bottom net (4) is horizontally laid.

5. A golden apple snail protection net assembly for irrigation opening of rice field according to claim 4, characterized in that, The semicircular net piece (1) comprises an external frame vertically arranged and a plurality of strip-shaped rods vertically and equidistantly arranged in the external frame, and the external frame and the strip-shaped rods are formed by welding.

6. A golden apple snail protection net assembly for irrigation opening of rice field according to claim 5, characterized in that, The bottom net (4) comprises a horizontal cross bar connecting the bottom of the semicircular net piece (1) on both sides and a plurality of horizontal longitudinal rods equidistantly arranged on the horizontal cross bar, and the free end of each horizontal longitudinal rod is welded to the bottom edge of the semicircular net piece (1).

7. A golden apple snail protection net assembly for irrigation opening of rice field according to claim 6, characterized in that, The distance between two adjacent strip-shaped rods is the same as the distance between two adjacent horizontal longitudinal rods.

8. The golden apple snail protection net assembly for irrigation opening of rice field according to claim 6, characterized in that, The materials of the semicircular net piece (1) and the bottom net (4) are corrosion-resistant iron or stainless steel, and the maximum size of the mesh of the semicircular net piece (1) and the bottom net (4) is 5-10 mm.

9. The golden apple snail protection net assembly for irrigation opening of rice field according to claim 3, characterized in that, The secondary interception net assembly (7) is composed of a plurality of wire rods which are interlaced or welded, and the maximum size of the mesh of the secondary interception net is 1-2 mm.

10. A golden apple snail protection net assembly for irrigation opening of rice field according to claim 9, characterized in that, The secondary interception net component (7) is a planar structure, and the secondary interception net component (7) is perpendicular to the ground. The secondary interception net component (7) is a planar structure, and the secondary interception net component (7) is perpendicular to the ground.

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