Automatic water changing device suitable for leech breeding

Abstract

The present invention relates to the technical field of automatic water exchange for aquaculture devices, and more specifically, to an automatic water exchange device suitable for leech aquaculture, comprising a breeding box, wherein a grid and a pair of touch switches are provided inside the breeding box. The breeding box is also provided with a drive device and a drainage mechanism, wherein the drive device comprises a push plate that moves inside the breeding box and a pair of slide rods that move with the push plate. The automatic water exchange device suitable for leech aquaculture accurately controls water intake and drainage operations through the movement of the push plate, and automatically discharges and replenishes aquaculture water by combining the siphon principle, thereby reducing the frequency of manual intervention. The meshing design of the slide rod and the transmission part synchronously drives the rotation of the rotating part during the water exchange process, and utilizes a scraper to automatically scrape dirt intercepted by the filter into a slag discharge trough, effectively preventing filter blockage and maintaining water quality cleanliness, thereby achieving the coordinated operation of water exchange and dirt cleaning, and significantly improving the management efficiency of the leech aquaculture environment.

Description

Technical Field

[0001] The invention relates to the technical field of automatic water changing of breeding devices, in particular to an automatic water changing device suitable for leech breeding. Background Art

[0002] In leech farming, the water exchange system is a key link. The system can regularly replace fresh water for the breeding pond, keep the water quality fresh, and ensure that leeches grow in an environment with suitable pH and dissolved oxygen. Especially in high temperature seasons, the water exchange system can effectively prevent water quality from deteriorating and provide a good living environment for leeches, thereby improving breeding efficiency and economic benefits.

[0003] The patent with application number CN202420439453.3 discloses an automatic water changing structure for a leech breeding pond, including a water tank, a water pump, a water inlet component, a movable key, a thin rope, a float and a dissolved oxygen meter. When the dissolved oxygen meter measures that the oxygen content inside the breeding pond is low, the water pump is started to discharge the sewage inside the breeding pond. At this time, the float falls to the top of the movable key, and then the water inlet pump is started. Under the action of the water inlet pump, the nozzle continuously sprays water into the breeding pond. When the dissolved oxygen meter measures that the oxygen content inside the breeding pond is appropriate, the water pump stops working. When the water level line reaches the groove, the float rises and leaves the movable key due to buoyancy, and the water inlet pump stops working, completing the water replacement.

[0004] However, traditional leech farming water-changing equipment mostly relies on manual step-by-step operations, and the water-changing and dirt-cleaning functions are separated, requiring additional intervention. It is inefficient and easily clogged by the filter, resulting in poor drainage. Dirt cannot be cleaned simultaneously when changing water, and the transmission components are easily affected by water flow impact or sudden load changes, resulting in jamming or failure, and insufficient stability. In addition, the layout of the filter and slag discharge structure is unreasonable, dirt is easily accumulated or secondary pollutes the water body, aggravating component wear, and high maintenance costs. The overall structure is loose and difficult to adapt to the high-frequency water change needs, which restricts the water quality management effect and the expansion of the farming scale.

[0005] In view of this, we propose an automatic water changing device suitable for leech farming. Summary of the Invention

[0006] The object of the present invention is to provide an automatic water changing device suitable for leech breeding, so as to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An automatic water changing device suitable for leech breeding comprises a breeding box, a grid and a pair of touch switches are provided inside the breeding box, and a driving device and a drainage mechanism are also provided inside the breeding box;

[0009] The driving device includes a push plate that moves inside the breeding box and a pair of slide bars that move along with the push plate. The push plate contacts a pair of touch switches to inject breeding water into the breeding box.

[0010] The drainage mechanism includes an outer sleeve, an inner rod arranged inside the outer sleeve, a rotating part sleeved on the outside of the bottom end of the inner rod, and a transmission part arranged on the outside of the outer sleeve. A cavity for aquaculture water to pass through is reserved between the outer sleeve and the inner rod. A water hole is opened inside the inner rod to pass through from top to bottom. The push plate contacts the grid to raise the water level in the aquaculture box, and the aquaculture water is automatically discharged from the water hole by the siphon principle.

[0011] The transmission part includes a rotating shaft, ratchets clamped at both ends of the rotating shaft, and a sleeve tooth set on the outside of the ratchet and rotating as the slide bar moves left. After the sleeve tooth rotates, it drives the rotating part to rotate to clean the breeding dirt.

[0012] In the technical solution of the present invention, the breeding box also includes a box body, a limit frame arranged on the outer wall of the box body, and a water inlet pipe controlled by a touch switch. The grid is fixedly connected to the inner wall of the box body by screws, and the limit frame and the touch switch are both fixed to the box body.

[0013] In the technical solution of the present invention, a drainage hole is provided on the inner bottom surface of the box below the drainage mechanism, a plurality of regularly distributed slag discharge grooves are provided on the inner bottom surface of the box outside the drainage hole, and a chute is also provided on the bottom of the box.

[0014] In the technical solution of the present invention, the driving device also includes a motor and a screw coaxially connected to the motor output shaft. The inner side of the push plate is slidably connected to the interior of the box and its size is adapted to the size inside the box. The outer concave plate of the push plate is slidably connected to the inside of the slide groove and is threadedly connected to the screw. The sliding rod is clamped and fixed on the outer wall of the push plate and its end is slidably connected to the inside of the limit frame. Several racks are welded below the right end of the sliding rod.

[0015] In the technical solution of the present invention, a number of regularly distributed openings are provided at the bottom of the outer sleeve and filter screens are clamped inside the openings. The filter screens are staggered with the slag discharge troughs. An outer sleeve cover is welded to the bottom of the outer wall of the outer sleeve, and cover wall grooves are provided at the positions of the outer wall of the outer sleeve cover corresponding to the filter screens.

[0016] In the technical solution of the present invention, the outer sleeve and the inner rod are both clamped and fixed on the inner bottom surface of the box body, and the positions of the water hole and the drainage hole correspond to each other.

[0017] In the technical solution of the present invention, the rotating part includes a rotating ring rotatably connected to the outside of the outer sleeve, several scrapers welded and fixed to the outside of the rotating ring, ring teeth mounted on the top of the outer wall of the rotating ring, and a sealing ring welded above the several scrapers.

[0018] In the technical solution of the present invention, the outer wall of the rotating ring is provided with annular wall through grooves extending inside and outside between the scrapers, and the outer ends of the scrapers and the sealing ring are in contact with the inner wall of the outer cover.

[0019] In the technical solution of the present invention, the transmission part further includes a worm sleeved on the outer wall of the rotating shaft and a plurality of pawls rotatably connected to the inner ring wall of the sleeve teeth.

[0020] In the technical solution of the present invention, the worm is engaged with the ring gear, and the sleeve gear is engaged with the rack below the right end of the slide rod.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This automatic water-changing device, suitable for leech farming, precisely controls water inlet and outlet operations through the movement of a push plate. It combines the siphon principle to automatically discharge and replenish aquaculture water, reducing the frequency of manual intervention. The meshing design of the slide bar and the transmission part synchronously drives the rotating part to rotate during the water change process. The scraper automatically scrapes dirt intercepted by the filter into the slag discharge trough, effectively preventing filter blockage and maintaining water quality. This realizes the coordinated operation of water change and dirt removal, significantly improving the management efficiency of the leech farming environment.

[0023] 2. This automatic water-changing device, suitable for leech farming, avoids mechanical jamming caused by water flow impact or sudden load changes through unidirectional rotation of the rotating part. In addition, the staggered distribution design of the filter and slag discharge trough, combined with the anti-overflow function of the sealing ring, further optimizes the water flow path and dirt separation effect, reducing wear on mechanical components. The entire transmission system has a compact structure and reliable operation, showing good stability and durability in long-term operation, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of the structure of the breeding box in the present invention;

[0027] Figure 4 Schematic diagram of the structure of the driving device in the present invention;

[0028] Figure 5 For the present invention Figure 4 A magnified schematic diagram of part A;

[0029] Figure 6 It is a schematic cross-sectional view of the structure of the drainage mechanism of the present invention;

[0030] Figure 7 It is a partial structural cross-sectional diagram of the drainage mechanism of the present invention;

[0031] Figure 8 For the present invention Figure 7 The side view of the structure in

[0032] Figure 9 Schematic diagram of the structure of the rotating part of the present invention;

[0033] Figure 10 Schematic diagram of the structure of the transmission part of the present invention;

[0034] Figure 11 For the present invention Figure 10 An enlarged schematic diagram of part B;

[0035] Description of reference numerals:

[0036] 100, breeding box; 110, box body; 111, drainage hole; 112, slag chute; 113, chute; 120, grid; 130, limit frame; 140, touch switch; 150, water inlet pipe;

[0037] 200, driving device; 210, motor; 220, push plate; 230, screw rod; 240, slide rod; 241, rack;

[0038] 300, drainage mechanism; 310, outer sleeve; 320, outer cover; 321, cover wall groove; 330, inner rod; 331, water hole; 340, filter; 350, rotating part; 351, rotating ring; 3510, ring wall groove; 352, scraper; 353, ring gear; 354, sealing ring; 360, transmission part; 361, rotating shaft; 362, worm; 363, ratchet; 364, sleeve gear; 365, pawl. DETAILED DESCRIPTION

[0039] The following will provide a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0040] See also Figures 1-11 As shown, this embodiment provides a technical solution:

[0041] An automatic water changing device suitable for leech farming includes a farming box 100, a grid 120 and a pair of touch switches 140 are provided inside the farming box 100, and a driving device 200 and a drainage mechanism 300 are also provided inside the farming box 100;

[0042] In this embodiment, Figure 2-Figure 3 As shown, the breeding box 100 also includes a box body 110, a limit frame 130 arranged on the outer wall of the box body 110, and a water inlet pipe 150 controlled by a touch switch 140. The grid 120 is fixedly connected to the inner wall of the box body 110 by screws, and the limit frame 130 and the touch switch 140 are both fixed to the box body 110.

[0043] Specifically, a drainage hole 111 is opened on the inner bottom surface of the box body 110 below the drainage mechanism 300 , a plurality of regularly distributed slag discharge grooves 112 are opened on the inner bottom surface of the box body 110 outside the drainage hole 111 , and a chute 113 is also opened at the bottom of the box body 110 .

[0044] Furthermore, the box 110 is used to provide a breeding area for leeches, the slide 113 is used to provide a moving area for the structure inside the drive device 200, the grid 120 is used to prevent dirt and leeches from invading the area where the internal structure of the drive device 200 moves during the breeding process, and the limit frame 130 is used to limit the moving area of ​​the internal structure of the drive device 200. When the touch switch 140 is pressed, the mechanical force pushes the button of the internal microswitch, and the internal contacts of the switch are closed, allowing the solenoid valve to be energized and opened, and water flows out through the water inlet pipe 150. After the touch switch 140 is released, the internal microswitch is reset under the action of the spring, and the contacts are disconnected, causing the solenoid valve to be de-energized and closed, and the water flow stops.

[0045] In this embodiment, Figure 4-Figure 5 As shown, the driving device 200 includes a push plate 220 that moves inside the breeding box 100 and a pair of slide bars 240 that move along with the push plate 220 . The push plate 220 contacts a pair of touch switches 140 to inject breeding water into the breeding box 100 .

[0046] Specifically, the driving device 200 also includes a motor 210 and a screw rod 230 coaxially connected to the output shaft of the motor 210. The inner side of the push plate 220 is slidably connected to the interior of the box body 110 and its size is adapted to the size inside the box body 110. The outer concave plate of the push plate 220 is slidably connected to the inside of the slide groove 113 and is threadedly connected to the screw rod 230. The sliding rod 240 is clamped and fixed on the outer wall of the push plate 220 and its end is slidably connected to the inside of the limit frame 130. Several racks 241 are welded below the right end of the sliding rod 240.

[0047] Furthermore, after the motor 210 is started, it drives the screw rod 230 to rotate, allowing the push plate 220 to move in the box body 110, and the rack 241 under the slide rod 240 is used to drive the internal structure of the drainage mechanism 300 to rotate.

[0048] In this embodiment, Figure 6-Figure 8As shown, the drainage mechanism 300 includes an outer sleeve 310, an inner rod 330 arranged inside the outer sleeve 310, a rotating part 350 arranged on the outside of the bottom end of the inner rod 330, and a transmission part 360 arranged on the outside of the outer sleeve 310. A cavity for aquaculture water to pass through is reserved between the outer sleeve 310 and the inner rod 330. A water hole 331 is opened in the inner rod 330 and passes through from top to bottom. The push plate 220 contacts the grid 120 to make the water level in the aquaculture box 100 rise, and the aquaculture water is automatically discharged from the water hole 331 through the siphon principle.

[0049] Specifically, the bottom of the outer sleeve 310 is provided with several regularly distributed openings and the filter screens 340 are clamped inside the openings. The filter screens 340 are staggered with the slag discharge troughs 112. The outer wall of the outer sleeve 310 is welded with an outer cover 320. The outer wall of the outer cover 320 and the positions corresponding to the filter screens 340 are provided with cover wall grooves 321.

[0050] Furthermore, the outer sleeve 310 and the inner rod 330 are both clamped and fixed on the inner bottom surface of the box body 110 , and the water hole 331 corresponds to the position of the drainage hole 111 .

[0051] Furthermore, the aquaculture water will enter through the cover wall groove 321 on the outer cover 320, and after being filtered through the filter screen 340, it will flow into the cavity between the outer tube 310 and the inner rod 330. The water level in the cavity is flush with the water level in the box body 110. When the water level in the cavity exceeds the top of the water hole 331, the water flow will be discharged to the outside of the box body 110 through the water hole 331 under the action of atmospheric pressure.

[0052] In this embodiment, Figure 9 As shown, the rotating part 350 includes a rotating ring 351 rotatably connected to the outside of the outer sleeve 310, a plurality of scrapers 352 welded and fixed to the outside of the rotating ring 351, a ring tooth 353 sleeved on the top of the outer wall of the rotating ring 351, and a sealing ring 354 welded above the plurality of scrapers 352.

[0053] Specifically, an outer wall of the rotating ring 351 is provided with annular wall through grooves 3510 between the scrapers 352 , and the outer ends of the scrapers 352 and the sealing ring 354 are in contact with the inner wall of the outer cover 320 .

[0054] Furthermore, after the rotating ring 351 rotates, several scrapers 352 will rotate accordingly, scraping the aquaculture dirt into the interior of the slag discharge trough 112, and the annular wall groove 3510 is used to allow the aquaculture water to pass through the filter screen 340 into the cavity between the outer sleeve 310 and the inner rod 330, and the sealing ring 354 is used to prevent water from overflowing.

[0055] In this embodiment, Figure 10-11As shown, the transmission part 360 includes a rotating shaft 361, a ratchet 363 clamped at both ends of the rotating shaft 361, and a sleeve tooth 364 sleeved on the outside of the ratchet 363 and rotating as the slide rod 240 moves left. After the sleeve tooth 364 rotates, it drives the rotating part 350 to rotate to clean the breeding dirt.

[0056] Specifically, the transmission part 360 further includes a worm 362 sleeved on the outer wall of the rotating shaft 361 and a plurality of pawls 365 rotatably connected to the inner ring wall of the sleeve teeth 364 .

[0057] Furthermore, the worm 362 is meshed with the ring gear 353 , and the sleeve gear 364 is meshed with the rack 241 below the right end portion of the slide rod 240 .

[0058] Furthermore, when the push plate 220 moves to the left, the rack 241 below the slide rod 240 will conflict with the sleeve teeth 364, driving the sleeve teeth 364 to rotate. At this time, the several pawls 365 on the inner side of the sleeve teeth 364 will drive the ratchet 363 to rotate, and then the rotating shaft 361 together with the worm 362 will rotate, thereby utilizing the contact between the worm 362 and the ring teeth 353 to drive the rotating ring 351 to rotate.

[0059] When the automatic water changing device for leech farming of the present invention is used, the motor 210 is first controlled to drive the screw rod 230 to rotate in the forward direction, thereby driving the push plate 220 to move rightward inside the box 110. After the push plate 220 contacts the grid 120, the water level in the box 110 rises.

[0060] At this time, the water level in the cavity between the outer sleeve 310 and the inner rod 330 rises together. When the water level exceeds the water hole 331, the water in the box body 110 is discharged from the water hole 331 through the siphon principle under the action of atmospheric pressure, while the dirt generated by the aquaculture is intercepted by the filter 340 between the two scrapers 352.

[0061] After the aquaculture water is drained, the control motor 210 drives the screw rod 230 to rotate in the reverse direction, causing the push plate 220 to move left and contact the touch switch 140, thereby allowing the aquaculture water to enter the interior of the box 110 through the water inlet pipe 150, thereby completing the water replacement operation;

[0062] When the push plate 220 moves left, the rack 241 below the slide bar 240 comes into contact with the sleeve teeth 364, causing the sleeve teeth 364 to rotate. At this time, the pawls 365 inside the sleeve teeth 364 drive the ratchet 363 to rotate, thereby causing the rotating shaft 361 and the worm 362 to rotate. The contact between the worm 362 and the ring teeth 353 drives the rotating ring 351 to rotate.

[0063] At this time, the aquaculture dirt remaining between the two scrapers 352 will rotate with the rotating ring 351 and be scraped into the top of the slag discharge trough 112 by the scrapers 352, thereby completing the cleaning of the dirt on the outside of the filter screen 340.

[0064] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to make and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the description and its equivalents.

Claims

1. An automatic water changing device suitable for leech breeding, comprising a breeding box, characterized in that: The aquaculture box is provided with a grid and a pair of touch switches inside, a driving device and a drainage mechanism, and a water inlet pipe controlled by the touch switches inside the aquaculture box. The aquaculture box also includes a box body, and a plurality of regularly distributed slag discharge grooves are opened on the bottom surface of the box body outside the drainage hole; a drainage hole is opened on the bottom surface of the box body below the drainage mechanism; The driving device includes a push plate that moves inside the breeding box and a pair of slide bars that move along with the push plate. The push plate contacts a pair of touch switches to inject breeding water into the breeding box. It also includes a limit frame arranged on the outer wall of the box body; the sliding rod is clamped and fixed on the outer wall of the push plate and the end thereof is slidably connected to the interior of the limit frame, and a plurality of racks are welded below the right end of the sliding rod; The drainage mechanism includes an outer sleeve, an inner rod disposed inside the outer sleeve, a rotating part sleeved on the outside of the bottom end of the inner rod, and a transmission part disposed on the outside of the outer sleeve. A cavity for aquaculture water to pass through is reserved between the outer sleeve and the inner rod. A water hole is opened inside the inner rod that passes through from top to bottom. The push plate contacts the grid to raise the water level in the aquaculture box, and the aquaculture water is automatically discharged from the water hole through the siphon principle. The bottom of the outer sleeve is provided with a plurality of regularly distributed openings, and filter screens are clamped inside the openings. The filter screens are staggered with the plurality of slag discharge troughs. A jacket cover is welded to the bottom of the outer wall of the outer sleeve; and the outer wall of the jacket cover is provided with cover wall through grooves at positions corresponding to the plurality of filter screens. The rotating part includes a rotating ring rotatably connected to the outside of the outer sleeve, and a plurality of scrapers welded and fixed to the outside of the rotating ring, wherein the outer ends of the scrapers are in contact with the inner wall of the outer cover; The transmission part includes a rotating shaft, a ratchet connected to both ends of the rotating shaft, and a sleeve tooth arranged on the outside of the ratchet and rotating as the slide rod moves to the left. When the push plate moves to the left, it contacts the touch switch, allowing the aquaculture water to enter the interior of the box through the water inlet pipe, thereby completing the water change operation. The rack under the slide rod will conflict with the sleeve tooth and drive the sleeve tooth to rotate. After the sleeve tooth rotates, it drives the rotating part to rotate to clean the aquaculture dirt.

2. The automatic water changing device for leech cultivation according to claim 1, characterized in that: The grid is fixedly connected to the inner wall of the box body by screws, and the limit frame and the touch switch are both fixedly connected to the box body.

3. The automatic water changing device for leech cultivation according to claim 2, characterized in that: A slide is also provided at the bottom of the box.

4. The automatic water changing device for leech breeding according to claim 3, characterized in that: The driving device also includes a motor and a screw coaxially connected to the motor output shaft. The inner side of the push plate is slidably connected to the inside of the box and its size is adapted to the size inside the box. The outer concave plate of the push plate is slidably connected to the inside of the slide groove and is threadedly connected to the screw.

5. The automatic water changing device for leech culture according to claim 1, characterized in that: The outer sleeve and the inner rod are both clamped and fixed on the inner bottom surface of the box body, and the positions of the water hole and the drainage hole correspond to each other.

6. The automatic water changing device for leech culture according to claim 1, characterized in that: It comprises a ring gear sleeved on the top of the outer wall of the rotating ring and a sealing ring welded on the top of a plurality of scrapers. The outer end of the sealing ring contacts the inner wall of the outer cover.

7. The automatic water changing device for leech culture according to claim 6, characterized in that: The outer wall of the rotating ring is provided with ring wall through grooves which are connected inside and outside between the plurality of scrapers.

8. The automatic water changing device for leech culture according to claim 7, characterized in that: The transmission part also includes a worm sleeved on the outer wall of the rotating shaft and a plurality of ratchets rotatably connected to the inner ring wall of the sleeve teeth.

9. The automatic water changing device for leech culture according to claim 8, characterized in that: The worm is meshed with the ring gear, and the sleeve gear is meshed with the rack below the right end of the slide rod.

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