Water depth self-adjusting device for ecological breeding of river crabs

Abstract

The invention provides a water depth self-adjusting device for ecological breeding of river crabs, and relates to the technical field of river crab breeding, the water depth self-adjusting device comprises a shell, the shell is fixedly provided with an inner pipe, the shell is slidably connected with a moving part, the shell is fixedly provided with a water storage tank, the water storage tank is fixedly communicated with a water inlet pipe, the shell is slidably connected with a guide part, and the guide part is provided with a water outlet. A blocking piece is slidably connected to the guiding piece, a partition plate is fixed to the shell, a first spring is fixedly connected between the partition plate and the moving piece, the moving piece is in threaded connection with a first adjusting rod, the guiding piece is rotatably connected with a second adjusting rod, and the second adjusting rod is rotatably connected with a baffle. And the second adjusting rod is in threaded connection with the blocking piece. When the water level is lower than the preset range, the air bag descends to drive a series of components to act, the water outlet of the water storage tank is exposed, water stored in the water storage tank and the water injection device connected with the water inlet pipe are used for water injection, manual operation is not needed any more, and the labor cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of river crab breeding, and in particular to a water depth self-regulating device for river crab ecological breeding. Background Art

[0002] In the process of river crab farming, people often use water depth self-regulating devices, which can improve water quality, avoid "dead water" by promoting water flow, and balance water quality parameters to reduce the accumulation of harmful substances; at the same time, they can optimize the breeding environment to improve breeding efficiency, save breeding water, and increase the yield and quality of river crabs.

[0003] The water depth self-adjusting device consists of two inner and outer tubes with different diameters. Both tubes are inserted into the soil at the bottom of the pond. A circle of grids is set on the outer tube near the soil at the bottom of the pond. Pool water can provide the grid to enter the tube. Through the principle of communicating vessels, the water levels inside and outside the outer tube are consistent. At the same time, the length of the outer tube is higher than the water surface, and the height of the inner tube is set to the preset water level for breeding river crabs. When the water level in the pond is higher than the preset water level, excess water will be discharged through the inner tube.

[0004] However, the existing device can only discharge part of the water exceeding the preset water level during use, and cannot inject water when the water level is lower than the preset water level. At this time, manual regulation and injection of water are required, which is troublesome and consumes manpower.

[0005] The invention provides a water depth self-regulating device for river crab ecological breeding, which can inject water into the breeding pond when the water level in the breeding pond is lower than a preset water level, so that the water level in the river crab breeding pond is maintained at the preset water level required for breeding. Summary of the invention

[0006] The invention provides a water depth self-regulating device for river crab ecological breeding, in order to overcome the defect that the existing device cannot automatically inject water into the pond when the water level does not reach the preset water level.

[0007] The technical solution is as follows: A self-adjusting device for water depth for ecological aquaculture of river crabs, comprising an outer shell, an inner tube fixed in the outer shell, a moving part slidably connected in the outer shell, a water tank fixed on the outer shell, a water inlet pipe fixed on and connected to the water tank, a guide part slidably connected on the outer shell, a blocking part slidably connected on the guide part, a partition plate fixed in the outer shell, a first spring fixed between the partition plate and the moving part, a first adjusting rod threadedly connected on the moving part, a second adjusting rod symmetrically rotatably connected on the guide part, the second adjusting rod rotatably connected to the baffle, and the second adjusting rod threadably connected to the blocking part.

[0008] Optionally, an airbag is further included, the airbag is slidably connected to the shell, the airbag is extrusion-matched with the first adjusting rod, and the airbag is slidably connected to the moving part.

[0009] Optionally, a baffle is also included, which is slidably connected to the guide member and is extrusion-matched with the airbag.

[0010] Optionally, a discharge mechanism capable of discharging duckweed on the water surface is also included, the discharge mechanism includes a second rotating member, the second rotating member is rotatably connected to the outer shell, a plurality of drainage pipes are circumferentially connected to the second rotating member, a counterweight frame is fixed to the drainage pipe, the airbag is connected to a limiting component capable of limiting the counterweight frame, and the outer shell is connected to a blocking component capable of blocking water from being discharged from the water inlet on the second rotating member.

[0011] Optionally, the blocking assembly includes a partition, which is fixedly connected to the outer shell and communicated with the drain pipe. A plurality of connecting rods are symmetrically fixed on the second rotating member, and the first rotating member is commonly fixed between the connecting rods on one side away from the second rotating member.

[0012] Optionally, the limiting assembly includes a fixing plate fixed on the airbag, a plurality of pairs of first fixing members are circumferentially fixed on the fixing plate, a limiting member is slidably connected to the first fixing member, a second spring is fixed between the limiting member and the first fixing member, and the counterweight frame is slidably connected to the corresponding first fixing member.

[0013] Optionally, an auxiliary mechanism that can assist in draining water from the pool is also included, the auxiliary mechanism includes a limit frame, the limit frame is fixed on the moving part, a plurality of limit blocks are fixed on the blocking part, a plurality of second fixing parts are fixed on the water tank, a latch is slidably connected to the second fixing part, the latch is snap-fitted with the limit frame, and the other two latches are snap-fitted with the limit blocks.

[0014] Optionally, it also includes a blocking mechanism that can block water when filling, thereby expanding the contact area between water and air and increasing the oxygen entering the pond. The blocking mechanism includes a plurality of pairs of third fixing members, which are slidably connected to the water tank, and a water baffle is fixed between the sides of each pair of third fixing members that are away from each other, and the water baffle is extruded and matched with the blocking member. An extrusion block is fixed on the water baffle, and the extrusion block is slidably connected to the water tank, and the extrusion block is extruded and matched with the blocking member.

[0015] The beneficial effect is that when the water level is lower than the preset range, the present invention drives a series of components to move by the lowering of the airbag, so that the water outlet of the water storage tank is exposed, and the water stored therein and the water injection device connected to the water inlet pipe are used for water injection, and manual operation is no longer required, thus saving labor costs; when the algae on the water surface need to be cleaned and the water level exceeds the preset water level, the first rotating member is first rotated counterclockwise to drive the connecting rod and the second rotating member to rotate counterclockwise, so that the water outlet of the second rotating member is opposite to the baffle of the partition member, and the baffle blocks the water outlet of the second rotating member by utilizing the extremely small gap between the two. , preventing the water at the bottom of the pool from being discharged, while the algae on the water surface enter the outer shell with the pool water from the drain pipe and are then discharged through the drainage device, thereby achieving algae cleaning; in the water changing stage, the limit frame and the limit block are limited by the pin, so that when draining, the moving parts can be prevented from resetting, so that the water that needs to be replaced can be discharged; thus in the water filling stage, the blocking part is driven downward through the component, the water outlet is exposed, and the water baffle is flushed open by the water pressure and separated from the water tank. At this time, the water column sprayed from the water outlet of the water tank is blocked by the water baffle and dispersed, which expands the contact surface between water and air and increases the oxygen content in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the airbag, the moving part, the first adjusting rod and other components of the present invention.

[0018] Figure 3 It is a sectional view of the three-dimensional structure of the partition plate, inner tube, outer shell and other components of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the moving part, the partition plate, the first spring and other components of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the water injection mechanism of the present invention.

[0021] Figure 6 It is a sectional view of the three-dimensional structure of the blocking member, the second adjusting rod, the guide rod and other components of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide member of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the discharge mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the drain pipe, fixing plate, separator and other components of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the first fixing member, the second spring, the counterweight frame and other components of the present invention.

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the present invention.

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the limiting frame, the limiting block, the second fixing member and other components of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the moving part and the limiting frame of the present invention.

[0029] Fig.14 It is a schematic diagram of the three-dimensional structure of the blocking mechanism of the present invention.

[0030] Fig.15 It is a sectional view of the three-dimensional structure of the third fixing member and the extrusion block and other components of the water retaining plate of the present invention.

[0031] Fig.16 It is a schematic diagram of the three-dimensional structure of the third fixing member and the extrusion block of the water retaining plate of the present invention.

[0032] Markings in the accompanying drawings: 1-housing, 11-airbag, 12-moving part, 13-first adjusting rod, 14-partitioning plate, 15-inner tube, 16-first spring, 2-blocking member, 21-second adjusting rod, 22-guide member, 23-water tank, 24-water inlet pipe, 25-baffle, 3-fixed plate, 31-first rotating member, 32-drain pipe, 33-second rotating member, 34-partitioning member, 35-connecting rod, 36-first fixing member, 37-limiting member, 38-counterweight frame, 39-second spring, 4-limiting frame, 41-limiting block, 42-latch pin, 43-second fixing member, 5-water baffle, 51-third fixing member, 52-extrusion block. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] Embodiment 1: A water depth self-regulating device for river crab ecological aquaculture, such as Figure 1-7As shown, it includes an outer shell 1, and eight grids are circumferentially arranged on the middle and upper part of the outer shell 1 so that pool water can enter. The bottom of the outer shell 1 is connected to the drainage device at the bottom of the crab pond. An inner tube 15 is fixed at the lower part of the inner shell 1, and the inner tube 15 is cylindrical and penetrates from top to bottom. A moving part 12 is slidably connected in the outer shell 1, and a water storage tank 23 is fixed on the upper side of the outer shell 1. Four water outlets are circumferentially arranged on the water storage tank 23. The hollow interior of the water storage tank 23 can be used to store water. A water inlet pipe 24 is fixed and connected to the upper side of the water storage tank 23, and the water inlet pipe 24 is connected to the external water injection device. A guide member 22 is slidably connected to the outer shell 1, and a blocking member 2 is slidably connected to the upper part of the guide member 22, and the blocking member 2 can block the water outlet on the water storage tank 23. A partition plate 14 is fixed in the outer shell 1, and a partition plate 14 is between the partition plate 14 and the moving part 12 Fixed The first spring 16 .

[0035] During the crab farming process, the water level requirements will vary with the seasons, crab growth stages, weather and other factors, but there is a certain range. Farming within this range of water levels can be beneficial to the growth and activity of crabs and reduce mutual interference and fighting between crabs. Therefore, it is necessary to ensure that the water level remains within the set range.

[0036] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the movable member 12 is threadedly connected with a first adjusting rod 13, the guide member 22 is symmetrically rotationally connected with a second adjusting rod 21, the second adjusting rod 21 is rotationally connected to a baffle 25, the second adjusting rod 21 is threadedly connected to the blocking member 2, the guide member 22 is slidably connected with a baffle 25, and the baffle 25 is squeezed and fitted with the airbag 11.

[0037] Because the water level range required for river crab farming is different in different months, different weather and different temperatures, when people need to adjust the preset water level range, they only need to rotate the first adjusting rod 13 and the second adjusting rod 21. Rotating the first adjusting rod 13 can adjust the position of the movable part 12 on the first adjusting rod 13, thereby ensuring that the drainage process is carried out after exceeding the water level range; rotating the second adjusting rod 21 can adjust the position of the baffle 25 on the second adjusting rod 21, and the preset water level range is the distance between the baffle 25 and the lower part of the guide part 22.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, it also includes an airbag 11, which is slidably connected to the shell 1, the airbag 11 is squeezed and matched with the first adjusting rod 13, the airbag 11 is slidably connected to the moving part 12, and the airbag 11 can float on the water surface, so that the height of the first adjusting rod 13 is controlled by the airbag 11.

[0039] Specifically, the lower part of the shell 1 is connected to the drainage device at the bottom of the pool, and the airbag 11 floats on the water surface by buoyancy. When the water level rises or falls, the airbag 11 will rise and fall with the water level. At the same time, the middle part of the airbag 11 is squeezed and matched with the bottom of the first adjusting rod 13. When the water level rises and exceeds the preset water level range, the airbag 11 will squeeze the first adjusting rod 13, so that the first adjusting rod 13 moves upward, and the first adjusting rod 13 will drive the moving part 12 to move upward, so that the lower part of the moving part 12 is separated from the inner tube 15, and the first spring 16 is compressed. Then the water in the pool will enter the shell 1 through the grid on the shell 1, and be discharged from the drainage device connected to the shell 1 through the inner tube 15 until the water level in the pool returns to the preset range. At this time, the airbag 11 falls back to the preset range position as the water level falls, and the airbag 11 no longer squeezes the first adjusting rod 13. The first spring 16 resets and drives the moving part 12 to move downward and reset, and the moving part 12 drives the first adjusting rod 13 to move downward and reset.

[0040] In this embodiment, the water inlet pipe 24 is connected to the external water injection device, and the water inlet pipe 24 is connected to the water tank 23. The interior of the water tank 23 is hollow and can store a certain amount of water. When the water level drops below a preset range, the airbag 11 moves downward with the water level drop. The airbag 11 will be squeezed and matched with the lower part of the guide member 22 and move downward with the guide member 22. The guide member 22 drives the second adjusting rod 21 to move downward, and the second adjusting rod 21 drives the blocking member 2 to move downward, so that the water outlet on the water tank 23 changes from a state covered by the blocking member 2 to an exposed state, so that the water stored in the water tank 23 is provided with a water outlet to flow out, and at the same time, the water outlet connected to the water inlet pipe 24 The water device continues to inject water until the water level in the pool returns to the preset water level range, and at the same time, the blocking member 2 covers the water outlet on the water tank 23 again, thereby completing the purpose of automatically injecting water into the water-deficient pond. People are no longer required to perform additional water injection when there is a water shortage, saving time, effort and reducing labor consumption; the blocking member 2 is relatively long, so when the water level rises above the preset range, the airbag 11 drives the baffle 25 and then drives the second adjusting rod 21 to move upward. During the process of the second adjusting rod 21 driving the blocking member 2 to move upward, the blocking member 2 can always block the water outlet on the water tank 23 to prevent the water outlet on the water tank 23 from being exposed, thereby avoiding the situation where water is injected during drainage.

[0041] Example 2: Based on Example 1, during the crab farming process, algae are often produced on the water surface of the pond. Algae can provide oxygen, purify water quality, etc., but when the algae multiply too much, algae bloom may form, thereby deteriorating the water quality. At the same time, some algae, such as blue algae, will secrete toxins to inhibit the growth of crabs. When the existing device is used for drainage, it can only discharge the water below the water surface, while the algae on the water surface are difficult to be discharged and need to be cleaned manually, which is a relatively cumbersome operation. Based on this, a discharge mechanism is provided that can discharge the algae on the water surface.

[0042] like Figure 8-10 As shown, the discharge mechanism includes a second rotating member 33, which is rotatably connected to the outer shell 1, and four water inlets are circumferentially arranged on the second rotating member 33. Four drainage pipes 32 are circumferentially connected to the second rotating member 33, and a counterweight frame 38 is fixed on the upper side of the drainage pipe 32. The airbag 11 is connected to a limiting component capable of limiting the counterweight frame 38, and the outer shell 1 is connected to a blocking component capable of blocking water from being discharged from the water inlet on the second rotating member 33.

[0043] like Figure 8-9 As shown, the blocking assembly (how it suddenly appeared is not explained in the previous text) includes a partition 34, which is fixedly connected to the outer shell 1, and the partition 34 is connected to the drain pipe 32. Four baffles are circumferentially arranged on the partition 34, and four short columns are circumferentially arranged on the upper side of the partition 34. Four arc grooves are circumferentially arranged on the upper side of the second rotating member 33, and the short columns are slidably connected to the corresponding arc grooves on the second rotating member 33. The second rotating member 33 can be driven to rotate so that the water inlet on the second rotating member 33 is opposite to the baffle on the partition 34, so that the water inlet on the second rotating member 33 is blocked, and four connecting rods 35 are symmetrically fixed on the second rotating member 33, and the first rotating member 31 is commonly fixed between the connecting rods 35 away from the side of the second rotating member 33.

[0044] like Figure 8-10 As shown, the limiting assembly includes a fixing plate 3, which is fixed on the airbag 11, and four pairs of first fixing members 36 are circumferentially fixed on the fixing plate 3. A limiting member 37 is slidably connected to the first fixing member 36, and a second spring 39 is fixed between the limiting member 37 and the first fixing member 36.

[0045] Specifically, when people need to discharge and clean the algae on the water surface, the water level is in a state of exceeding the preset water level. First, people need to rotate the first rotating member 31 counterclockwise. The first rotating member 31 drives the connecting rod 35 and then drives the second rotating member 33 to rotate counterclockwise, so that the water outlet on the second rotating member 33 is opposite to the baffle plate on the partition 34. At the same time, because the gap between the second rotating member 33 and the partition 34 is negligible, the baffle plate on the partition 34 can block the water outlet on the second rotating member 33, thereby preventing the water at the bottom of the pool from being discharged. Later, people manually move each pair of limit members 37 in the direction away from each other, so that the limit members 37 no longer restrict the corresponding counterweight frames 38 (counterweight frames 38), and the counterweight frames 38 drive the drain pipe 32 to move downward, so that the pipe openings on the drain pipe 32 fall below the horizontal plane. Because the water level is above the preset water level during drainage, the bottom of the movable member 12 is separated from the inner tube 15, and the algae on the water surface enters the interior of the outer shell 1 from the drain pipe 32 along with the pool water, and is then discharged from the drainage device connected to the outer shell 1, thereby achieving the purpose of cleaning the algae on the water surface.

[0046] The second spring 39 can make the limit member 37 and the counterweight frame 38 fit tightly together to prevent the limit member 37 and the counterweight frame 38 from easily falling out. A protrusion is provided on the side close to each other at the lower part of each pair of first fixing members 36, and the counterweight frame 38 is symmetrically provided with sliding grooves. The sliding grooves on the counterweight frame 38 are slidably connected with the corresponding protrusions on the first fixing members 36. The first fixing members 36 can block the counterweight frame 38, thereby preventing the counterweight frame 38 from falling off from the fixing plate 3.

[0047] As mentioned above, the slide groove on the counterweight frame 38 is slidably connected to the protrusion on the corresponding first fixing member 36, so when the limit member 37 no longer restricts the counterweight frame 38, the counterweight frame 38 will be restricted by the protrusion on the first fixing member 36 after falling, thereby preventing the counterweight frame 38 from being separated from the fixing plate 3. At the same time, because the fixing plate 3 is fixed on the airbag 11, and the airbag 11 floats on the water surface, the counterweight frame 38 falls to the drain pipe 32, which will make the pipe mouth of the drain pipe 32 located a short distance below the water surface, ensuring that the algae on the water surface can enter the drain pipe 32 and be discharged along with the water flow.

[0048] During the crab farming process, people need to change the water in the pond frequently. If the water is not changed frequently, feces will continue to accumulate during the farming process, resulting in increased concentrations of harmful substances such as ammonia nitrogen and nitrite in the pond, which will cause damage to the crabs. At the same time, the decomposition of organic matter in the pond will consume a lot of oxygen, especially in high temperature seasons or continuous rainy weather. The dissolved oxygen in the water will be significantly reduced. Therefore, an auxiliary mechanism is set up to help people drain the water from the pond.

[0049] like Figure 11-13 As shown, the auxiliary mechanism includes a limiting frame 4, which is fixed on the moving part 12, two limiting blocks 41 are fixed on the blocking part 2, and four second fixing members 43 are fixed on the water tank 23, and each of the second fixing members 43 is slidably connected with a latch 42, two of which are snap-fitted with the limiting frame 4, and the other two latches 42 are snap-fitted with the limiting blocks 41, and holes are provided on the limiting blocks 41 and the limiting frame 4 for easy snap-fitting with the latches 42, thereby limiting the limiting blocks 41 and the limiting frame 4.

[0050] Specifically, firstly, people need to engage the latch 42 with the hole on the limiting block 41 to restrict the blocking member 2 to prevent the water level from dropping during the drainage process, thereby exposing the water outlet on the water storage tank 23 for water injection. When drainage is required, the water level in the pond exceeds the preset water level range, the airbag 11 squeezes and drives the first adjusting rod 13 to move upward, the first adjusting rod 13 drives the moving member 12 to move upward, the first spring 16 is compressed, and the moving member 12 drives The limit frame 4 moves upward, and when the holes on the limit frame 4 are all in the same plane with the corresponding pins 42, people push the corresponding pins 42 to make the pins 42 cooperate with the corresponding holes on the limit frame 4. At this time, the moving part 12 is just separated from the inner tube 15, and the water in the pond enters the inner tube 15 through the grid on the outer shell 1 and is discharged. Because the limit frame 4 is engaged with the pins 42, the moving part 12 is restricted and cannot be reset, so that the pool water can be discharged all the time. Each time the water is changed, 10%-15% of the water in the pool needs to be replaced.

[0051] In this embodiment, after 10%-15% of the water is discharged, people separate the latch 42 from the hole on the limit frame 4, the movable member 12 is no longer restricted, the first spring 16 resets and drives the movable member 12 to move downward and reset, the movable member 12 drives the limit frame 4 to move downward and reset, the movable member 12 blocks the opening on the inner tube 15 again to prevent further drainage, and at the same time people separate the latch 42 from the limit block 41, so that the blocking member 2 is no longer restricted and moves downward, so that the water outlet on the water tank 23 is exposed and water is started to be injected until the water level returns to the preset range, at which time the blocking member 2 also blocks the water outlet on the fixed plate 3 again.

[0052] The latches 42 are all L-shaped and have grooves thereon, the second fixing members 43 are all T-shaped, and the latches 42 and the corresponding second fixing members 43 are slidably connected to each other, so that the latches 42 can slide without being separated from the corresponding second fixing members 43, thereby avoiding the latches 42 from being separated from the corresponding holes when they are matched, and ensuring the stability of the device during the drainage process.

[0053] During the crab farming process, in order to ensure the healthy growth of crabs, people need to frequently add oxygen to the breeding pond. If the crabs are short of oxygen, their appetite will decrease, their movements will become slow, and they may even die. Therefore, a device is provided to block the water column when water is injected, so that the water column is dispersed, thereby expanding the contact area between water and air and increasing the blocking mechanism for oxygen entering the pond.

[0054] like Figure 14-16 As shown, the blocking mechanism includes four pairs of third fixing members 51, and the third fixing members 51 are all slidably connected to the water tank 23. A water baffle 5 is fixed between the sides of each pair of third fixing members 51 that are away from each other, and the water baffle 5 is squeezed and matched with the blocking member 2. An extrusion block 52 is fixed on the water baffle 5, and the extrusion block 52 is slidably connected to the water tank 23. The lower side of the extrusion block 52 is provided with an inclined surface, and the inclined surface on the extrusion block 52 is squeezed and matched with the blocking member 2, wherein every two third fixing members 51, a water baffle 5 and an extrusion block 52 together form a drop structure, and a drop structure is provided at each water outlet on the water tank 23.

[0055] Specifically, during the water injection stage, the blocking member 2 is driven by the second adjusting rod 21 to move downward, so that the water outlet on the water tank 23 is exposed, and the blocking member 2 no longer squeezes and restricts the water baffle 5. At the same time, the external water injection system is always injecting water into the water tank 23. Because the third fixing member 51 and the water tank 23 are both slidably connected, when the blocking member 2 no longer restricts the water baffle 5, the water baffle 5 will be flushed open by the water pressure, so that the water baffle 5 will be separated from the water tank 23. The water baffle 5 drives the third fixing member 51 and the squeezing block 52 to move toward the side away from each other, and the water column sprayed from the water outlet on the water tank 23 will be blocked by the waterfall mechanism, thereby dispersing the sprayed water column. The dispersion of the water column increases the contact area between water and air, thereby increasing the oxygen content in the water, and then increasing the oxygen injected into the pool, thereby achieving the purpose of oxygenation and avoiding the occurrence of hypoxia in river crabs.

[0056] As mentioned above, when the water injection reaches the preset water level range, the blocking member 2 is reset by the upward movement of the second adjusting rod 21, so that the blocking member 2 blocks the water outlet on the water tank 23 again. During the upward movement of the blocking member 2, the inclined surface on the lower side of the extrusion block 52 is squeezed, so that the water baffle 5 with the third fixing member 51 is pushed back into the water outlet of the water tank 23 again.

[0057] In this embodiment, a groove is provided in the water outlet of the water tank 23, and the third fixing member 51 is set to be T-shaped. During the water filling process, the T-shaped third fixing member 51 will be blocked by the groove in the water outlet of the water tank 23, thereby preventing the third fixing member 51 from detaching from the water tank 23, thereby preventing the drop mechanism from falling off the water tank 23.

[0058] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water depth self-regulating device for river crab ecological breeding, characterized in that: The invention comprises a shell (1), an inner tube (15) is fixed inside the shell (1), a moving part (12) is slidably connected inside the shell (1), a water storage tank (23) is fixed on the shell (1), a water inlet pipe (24) is fixed on and connected to the water storage tank (23), a guide part (22) is slidably connected to the shell (1), a blocking part (2) is slidably connected to the guide part (22), a partition plate (14) is fixed inside the shell (1), a first spring (16) is fixed between the partition plate (14) and the moving part (12), a first adjusting rod (13) is threadedly connected to the moving part (12), a second adjusting rod (21) is symmetrically rotatably connected to the guide part (22), the second adjusting rod (21) is rotatably connected to the baffle (25), and the second adjusting rod (21) is threadedly connected to the blocking part (2).

2. The water depth self-regulating device for river crab ecological breeding according to claim 1 is characterized in that: It also includes an airbag (11), which is slidably connected to the housing (1), the airbag (11) is extrusion-matched with a first adjustment rod (13), and the airbag (11) is slidably connected to a moving part (12).

3. The water depth self-regulating device for river crab ecological breeding according to claim 2 is characterized in that: It also includes a baffle (25), which is slidably connected to the guide member (22), and the baffle (25) is extrusion-matched with the airbag (11).

4. The water depth self-regulating device for river crab ecological breeding according to claim 3 is characterized in that: It also includes a discharge mechanism capable of discharging duckweed on the water surface, the discharge mechanism including a second rotating member (33), the second rotating member (33) is rotatably connected to the outer shell (1), a plurality of drainage pipes (32) are circumferentially connected to the second rotating member (33), a counterweight frame (38) is fixed to the drainage pipe (32), the airbag (11) is connected to a limiting component capable of limiting the counterweight frame (38), and the outer shell (1) is connected to a blocking component capable of blocking water.

5. The water depth self-regulating device for river crab ecological breeding according to claim 4 is characterized in that: The blocking assembly comprises a partition (34), wherein the partition (34) is fixedly connected to the outer shell (1), and the partition (34) is connected to the drain pipe (32). A plurality of connecting rods (35) are symmetrically fixed to the second rotating member (33), and the first rotating member (31) is commonly fixed between the connecting rods (35) on the side away from the second rotating member (33).

6. The water depth self-adjusting device for river crab ecological breeding according to claim 5 is characterized in that: The limiting component comprises a fixing plate (3), wherein the fixing plate (3) is fixed on the airbag (11), and a plurality of pairs of first fixing members (36) are fixed circumferentially on the fixing plate (3), a limiting member (37) is slidably connected to the first fixing member (36), a second spring (39) is fixedly connected between the limiting member (37) and the first fixing member (36), and the counterweight frame (38) is slidably connected to the corresponding first fixing member (36).

7. The water depth self-regulating device for river crab ecological breeding according to claim 6 is characterized in that: The invention also comprises an auxiliary mechanism capable of assisting in draining the water in the pool, the auxiliary mechanism comprising a limit frame (4), the limit frame (4) being fixed on the moving member (12), a plurality of limit blocks (41) being fixed on the blocking member (2), a plurality of second fixing members (43) being fixed on the water storage tank (23), a latch (42) being slidably connected to the second fixing member (43), the latch (42) being snap-fitted with the limit frame (4), the other two latches (42) being snap-fitted with the limit blocks (41), and holes being provided on the limit blocks (41) and the limit frame (4) for convenient snap-fitting with the latches (42).

8. The water depth self-adjusting device for river crab ecological breeding according to claim 7 is characterized in that: The invention also comprises a blocking mechanism capable of blocking water when water is injected, thereby expanding the contact surface between water and air and increasing the oxygen entering the pond. The blocking mechanism comprises a plurality of pairs of third fixing members (51), the third fixing members (51) being slidably connected to the water storage tank (23), a water baffle (5) being fixed between the sides of each pair of third fixing members (51) which are away from each other, the water baffle (5) being pressed and matched with the blocking member (2), a pressing block (52) being fixed on the water baffle (5), the pressing block (52) being slidably connected to the water storage tank (23), and the pressing block (52) being pressed and matched with the blocking member (2).

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