Drainage device for rice and crab co-culture pond

Abstract

The utility model relates to a drainage device for a rice and crab co-culture pond, which comprises a pipe body with an inflow port, the pipe body is provided with a blocking piece for blocking solid impurities at the downstream of the inflow port along the flowing direction of culture water, and the drainage device is characterized in that the pipe body is also provided with a separation mechanism at the upstream of the blocking piece; the separation mechanism comprises a separation channel communicated with the pipe body, the separation channel further comprises an outlet part, correspondingly, the separation mechanism further comprises a separation piece and a driving source connected with the separation piece, and under driving of the driving source, the separation piece can separate solid impurities from the upstream of the blocking piece; the drainage device has the advantages that the separation mechanism is arranged at the upstream position of the blocking piece to separate the solid impurities from the aquaculture water and discharge the solid impurities, and therefore the blocking piece does not need to be cleaned frequently while the pipe body is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of rice-crab symbiotic breeding, in particular to a drainage device which is convenient for draining water from a rice-crab symbiotic breeding pond. Background Art

[0002] The rice-crab symbiotic farming technology cleverly combines rice planting and crab farming. On the one hand, the activities of crabs are used to control weeds, pests and other factors that are not conducive to rice and provide natural fertilizers for rice; on the other hand, rice provides food and habitats for crabs. This model can form a virtuous ecological cycle while increasing economic benefits. The commonly used rice-crab co-culture ponds can refer to, for example, the rice-crab co-culture pond provided in the Chinese invention patent application "A Rice-Crab Symbiotic Large-Sized Crab Farming Method" with application number CN202210323513.0 (publication number CN114793972A).

[0003] In order to ensure the cleanliness and stability of the water quality in the rice-crab co-culture pond, it is necessary to keep the water in the rice-crab co-culture pond flowing. For this purpose, a drainage device is often provided in the rice-crab co-culture pond. The drainage device usually includes a drainage pipe with one end located in the pond, and a driving device such as a water pump connected to the other end of the drainage pipe. Considering that there are a lot of solid impurities such as silt and weeds in the rice-crab co-culture pond, if the above solid impurities enter the driving device during the drainage process, it will affect the operation of the driving device and even damage the driving device. Therefore, a filter is usually provided at the interface of the drainage pipe to filter the solid impurities.

[0004] However, the filter will cause another defect in the use of the drainage device, that is, the solid impurities will accumulate on the surface of the filter, so the staff needs to frequently clean the filter and the drainage pipe part adjacent to the filter, which is inconvenient; but if it is not cleaned in time, it may affect the drainage effect and even cause the drainage pipe to be completely blocked. Therefore, it is necessary to further improve the existing drainage device for rice-crab co-culture ponds. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a drainage device which can avoid pipe blockage and does not require frequent cleaning in view of the above-mentioned existing technical status.

[0006] The second technical problem to be solved by the present invention is to provide a drainage device capable of automatically cleaning solid impurities in view of the above-mentioned existing technical status.

[0007] The technical solution adopted by the utility model to solve the first problem is: the drainage device for the rice-crab co-culture pond includes a pipe body, the pipe body includes an inlet for aquaculture water to flow in, the pipe body is provided with a blocking member downstream of the inlet along the flow direction of the aquaculture water, and the blocking member is used to block at least part of the solid impurities in the aquaculture water;

[0008] It is characterized in that: the pipe body is also provided with a separation mechanism upstream of the blocking member, which can separate at least part of the solid impurities in the aquaculture water from the water body, and the separation mechanism includes a separation channel connected to the pipe body, and the separation channel also includes an outlet portion for discharging solid impurities. Correspondingly, the separation mechanism also includes a separation member and a driving source connected to the separation member. Under the drive of the driving source, the separation member can pre-separate at least part of the solid impurities from the upstream of the blocking member, and drive at least part of the solid impurities to move along the separation channel and be discharged through the outlet portion.

[0009] In order to enable the separation element to drive the solid impurities to move along the separation channel, preferably, the separation element includes a cylindrical boss, the lower end of the boss is connected to the driving source, and the periphery of the boss also has at least two radially extending blades arranged at intervals along the circumference. The radially extending blades arranged at intervals along the periphery of the boss can be selected from structures such as spiral blades, which can drive the solid impurities to move from bottom to top along the bolt blades during rotation; in addition, according to actual needs, the outer periphery of the blade can be set to a structure that contacts the peripheral wall of the separation channel or has a gap. For example, if a driving device such as a water pump is set downstream of the blocking member, the outer periphery of the blade can be set to a structure that contacts the peripheral wall of the separation channel to avoid air being sucked from the separation channel and causing the suction force of the inlet to be weakened. If it does not rely on the driving device, for example, gravity is relied on to make the aquaculture water flow out naturally, the outer periphery of the blade can be set to a structure with a gap with the peripheral wall of the separation channel, so that the aquaculture water can flow out from the gap and avoid being discharged from the separation channel together with the solid impurities.

[0010] Furthermore, in order to prevent the separation element from discharging the aquaculture water together, preferably, a first through hole for the aquaculture water to pass through is provided on the blade. The first through hole enables the separation channel to be in fluid communication with the interior of the tube body, thereby preventing the aquaculture water from being discharged from the separation element along with the solid impurities. In addition, according to actual needs, the first through hole can be provided on the boss and a hollow portion can be provided in the boss to enable the separation channel to be in fluid communication with the interior of the tube body.

[0011] In order to fully separate the solid impurities in the aquaculture water, preferably, the lower section of the blade blocks the path upstream of the blocking member and contacts the inner wall of the tube body. With such a design, the blade can completely block the path of the aquaculture water flow, thereby fully separating the solid impurities in the aquaculture water.

[0012] Furthermore, in order to facilitate the discharge of solid impurities from the outlet of the separation channel, preferably, the upper end of the protruding column at least partially protrudes from the outlet, and correspondingly, the upper section of the blade at least partially protrudes from the outlet, and the upper end of the protruding column at least partially protrudes radially outward to form a flange. Since the upper section of the blade protrudes from the outlet, the solid impurities will be discharged to the outside of the outlet as the blade rotates, and the flange is provided to cooperate with the blade, thereby guiding the solid impurities to be thrown outward in the radial direction of the protruding column.

[0013] In order to solve the second technical problem, preferably, the blocking member is in the shape of an arc plate and has a second through hole for aquaculture water to pass through, and the blocking member is tangent to the blade. The blocking member can be selected from structures such as a filter screen, so it often has a second through hole for aquaculture water to pass through, and the blocking member is set to a structure tangent to the blade, which, on the one hand, enables the separator to separate solid impurities without dead angles; on the other hand, it also makes the blade contact and tangent to the blocking member, so that the blade can scrape off the solid impurities remaining on the blocking member to complete the cleaning of the blocking member.

[0014] In order to install the blocking member at a designated position, preferably, the tube body is provided with an opening for inserting the blocking member. Through the opening, the blocking member can be inserted into the tube body.

[0015] Further design, in order to prevent the blocking member from generating a gap with the inner wall of the tube body under the impact of the aquaculture water, preferably, an insertion portion for partially inserting the blocking member is provided on the inner wall of the tube body opposite to the opening. If the blocking member is limited by the opening alone, the blocking member may generate a gap with the inner wall of the tube body under the impact of the aquaculture water, thereby failing to block solid impurities. With such a design, both the upper and lower ends of the blocking member are limited, further enhancing the stability of the blocking member installation.

[0016] In order to facilitate installation and replacement of the blocking member, preferably, a convex portion is partially raised on the blocking member, and when the blocking member is inserted into the insertion portion through the opening, the convex portion contacts the outer wall of the tube body. The convex portion not only serves to confirm that the blocking member has been installed in place, but also facilitates the operator to take it.

[0017] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

[0018] Compared with the prior art, the advantages of the utility model are:

[0019] 1. The drainage device for the rice-crab co-culture pond separates and discharges solid impurities from the aquaculture water by arranging a separation mechanism upstream of the blocking member, thereby avoiding clogging of the pipe body and eliminating the need to frequently clean the blocking member.

[0020] 2. By setting the blocking member to be tangent to the blade, the blade can scrape off the solid impurities remaining on the blocking member to achieve the function of automatically cleaning the blocking member. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the drainage device in Example 1 of the utility model;

[0022] Figure 2 This is a schematic structural diagram of the drainage device in Embodiment 1 of the utility model from another angle;

[0023] Figure 3 This is a schematic diagram of the internal structure of the drainage device in Example 1 of the utility model;

[0024] Figure 4 This is a schematic diagram of the explosion structure of the drainage device in Example 1 of the utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the tube body and the separation channel in Example 1 of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the separation member in Embodiment 1 of the present utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the blocking member in Example 1 of the utility model;

[0028] Figure 8 This is a schematic diagram of the internal structure of the drainage device in Example 2 of the utility model;

[0029] Fig. 9 This is a schematic diagram of the structure of the separation component in Example 3 of the utility model. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with specific embodiments.

[0031] Example 1

[0032] like Figures 1 to 7 As shown in FIG. , it is a preferred embodiment of the present utility model. Figure 1 As shown, the drainage device for the rice-crab co-culture pond in this embodiment includes a pipe body 1, the pipe body 1 includes an inlet 11 for aquaculture water to flow in, and the pipe body 1 is provided with a blocking member 12 downstream of the inlet along the flow direction of the aquaculture water, and the blocking member 12 is used to block at least part of the solid impurities in the aquaculture water. Further, the pipe body 1 is also provided with a separation mechanism 2 that can separate at least part of the solid impurities in the aquaculture water from the water body at the upstream of the blocking member 12, and the separation mechanism 2 includes a separation channel 21 connected to the pipe body 1, and the separation channel 21 also includes an outlet 211 for discharging solid impurities. Correspondingly, the separation mechanism 2 also includes a separation member 22 and a driving source 23 connected to the separation member 22. Under the drive of the driving source 23, the separation member 22 can pre-separate at least part of the solid impurities from the upstream of the blocking member 12, and drive at least part of the solid impurities to move along the separation channel 21 and be discharged through the outlet 211.

[0033] In order to enable the separation element 22 to drive the solid impurities to move along the separation channel 21, see Figure 6 The separator 22 in this embodiment includes a cylindrical boss 221, the lower end of the boss 221 is connected to the driving source 23, and the periphery of the boss 221 also has at least two radially extending blades 222 arranged at intervals along the circumferential direction. The blade 222 in this embodiment is a spiral blade, and the separation channel 21 extends upward. The blade 222 can drive solid impurities to move from bottom to top along the blade 222 during rotation. In order to prevent the separator 22 from discharging the aquaculture water together, the blade 222 in this embodiment is provided with a first through hole 223 for the aquaculture water to pass through, so that the separation channel 21 is connected to the internal fluid of the tube body 1. In order to fully separate the solid impurities in the aquaculture water, such as Figure 3As shown, the lower section of the blade 222 blocks the path upstream of the blocking member 12 and contacts the inner wall of the tube body 1. With such a design, the blade 222 can completely block the path of the aquaculture water flow, thereby fully separating the solid impurities in the aquaculture water. In order to facilitate the discharge of solid impurities from the outlet of the separation channel 21, the upper end of the protrusion 221 in this embodiment at least partially protrudes from the outlet 211, and correspondingly, the upper section of the blade 222 at least partially protrudes from the outlet 211, and the upper end of the protrusion 221 at least partially protrudes radially outward to form a flange 224. Since the upper section of the blade 222 protrudes from the outlet 211, the solid impurities will be discharged to the outside of the outlet 211 as the blade 222 rotates, and the flange 224 is provided to cooperate with the blade 222, so as to guide the solid impurities to be thrown outward in the radial direction of the protrusion 221.

[0034] In order to realize automatic cleaning of the blocking member 12, as Figure 7 The blocking member 12 in the embodiment shown is in the shape of an arc plate and has a second through hole 121 for aquaculture water to pass through. The blocking member 12 is tangent to the blade 222. The blocking member 12 in the embodiment is an arc filter. The blocking member 12 is set to be inscribed with the blade 222. On the one hand, the separation member 22 can separate solid impurities without dead angles; on the other hand, the blade 222 is in contact with and tangent to the blocking member 12, so that the blade 222 can scrape off the solid impurities remaining on the blocking member 12 to complete the cleaning of the blocking member 12. In order to be able to install the blocking member 12 to a specified position, such as Figure 5 As shown, an opening 13 for inserting the blocking member 12 is also provided on the tube body 1. An insertion portion 14 for partially inserting the blocking member 12 is provided on the inner wall of the tube body 1 on the side opposite to the opening 13. Such a design is made considering that if the blocking member 12 is limited only by the opening 13, the blocking member 12 may have a gap with the inner wall of the tube body 1 under the impact of the aquaculture water, thereby failing to block solid impurities. Such a design allows both the upper and lower ends of the blocking member 12 to be limited, further enhancing the stability of the installation of the blocking member 12. In order to facilitate the installation and replacement of the blocking member 12, a convex portion 122 is formed on the blocking member 12. When the blocking member 12 is inserted into the insertion portion 14 through the opening 13, the convex portion 122 contacts the outer wall of the tube body 1. The convex portion 122 has the function of confirming that the blocking member 12 has been installed in place, and on the other hand, it is also convenient for the operator to take it.

[0035] Example 2

[0036] like Figure 8As shown, the structure is basically the same as that of Example 1, except that the blocking member 12 in this embodiment is in the shape of a rectangular plate, and the blocking member 12 is also tangent to the blade 222. However, compared with Example 1, the blade 222 in this embodiment can only scrape off local solid impurities on the blocking member. However, the blocking member 12 in this embodiment is relatively simple to manufacture and is suitable for situations with fewer solid impurities.

[0037] Example 3

[0038] like Fig. 9 As shown, the structure is basically the same as that of Example 1, except that the first through hole 223 of the separator 22 in this embodiment is formed on the boss 221, and the boss 221 is provided with a hollow portion, so that the separation channel 21 is in fluid communication with the interior of the tube body 1.

Claims

1. A drainage device for a rice-crab co-culture pond, comprising a pipe body (1), the pipe body (1) comprising an inlet (11) for aquaculture water to flow in, the pipe body (1) being provided with a blocking member (12) downstream of the inlet (11) along the flow direction of the aquaculture water, the blocking member (12) being used to block at least part of the solid impurities in the aquaculture water; Features: The pipe body (1) is also provided with a separation mechanism (2) upstream of the blocking member (12) capable of separating at least part of the solid impurities in the aquaculture water from the water body, the separation mechanism (2) comprising a separation channel (21) connected to the pipe body (1), the separation channel (21) also comprising an outlet portion (211) for discharging the solid impurities, and correspondingly, the separation mechanism (2) also comprises a separation member (22) and a driving source (23) connected to the separation member (22), and under the drive of the driving source (23), the separation member (22) can pre-separate at least part of the solid impurities from the upstream of the blocking member (12), and drive at least part of the solid impurities to move along the separation channel (21) and be discharged through the outlet portion (211).

2. The drainage device according to claim 1, characterized in that: The separation member (22) comprises a cylindrical boss (221), the lower end of the boss (221) is connected to the driving source (23), and the periphery of the boss (221) also has at least two radially extending blades (222) arranged at intervals along the circumferential direction.

3. The drainage device according to claim 2, characterized in that: The blade (222) is provided with a first through hole (223) for the aquaculture water to pass through.

4. The drainage device according to claim 2, characterized in that: The lower section of the blade (222) blocks the path upstream of the blocking member (12) and contacts the inner wall of the tube body (1).

5. The drainage device according to claim 4, characterized in that: The upper end of the protruding column (221) at least partially protrudes from the outlet portion (211), and correspondingly, the upper section of the blade (222) at least partially protrudes from the outlet portion (211), and the upper end of the protruding column (221) at least partially protrudes radially outward to form a flange (224).

6. The drainage device according to any one of claims 2 to 5, characterized in that: The blocking member (12) is in the shape of an arc plate and is provided with a second through hole (121) for the passage of aquaculture water. The blocking member (12) is tangent to the blade (222).

7. The drainage device according to claim 6, characterized in that: The tube body (1) is provided with an opening (13) for inserting the blocking member (12).

8. The drainage device according to claim 7, characterized in that: An insertion portion (14) for partially inserting the blocking member (12) is provided on a side of the inner wall of the tube body (1) opposite to the opening (13).

9. The drainage device according to claim 8, characterized in that: The blocking member (12) is partially raised to form a convex portion (122); when the blocking member (12) is inserted into the insertion portion (14) through the opening (13), the convex portion (122) contacts the outer wall of the tube body (1).

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