Automatic water changing device suitable for leech breeding

Abstract

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, which comprises a breeding box, a grid and a pair of touch switches are arranged in the breeding box, and a driving device and a drainage mechanism are further arranged in the breeding box. The driving device comprises a push plate moving in the breeding box and a pair of sliding rods moving along with the push plate. According to the automatic water changing device suitable for leech breeding, automatic discharging and supplementing of breeding water are achieved through movement of a push plate and accurate touch control of water inlet and water drainage operation in combination with the siphon principle, the frequency of manual intervention is reduced, the meshing design of a sliding rod and a transmission part synchronously drives a rotating part to rotate in the water changing process, and the water changing efficiency is improved. The dirt intercepted by the filter screen is automatically scraped into the residue discharging groove through the scraper, the filter screen is effectively prevented from being blocked, the water quality is kept clean, collaborative operation of water changing and dirt cleaning is achieved, and the management efficiency of the leech breeding environment is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic water change for aquaculture devices, and more specifically, to an automatic water change device suitable for leech aquaculture. Background Art

[0002] In leech aquaculture, the water change system is a crucial part. The system can regularly replace the fresh water source in the aquaculture pond, keep the water quality fresh, and ensure that leeches grow in an environment with appropriate pH value and dissolved oxygen content. Especially in the high-temperature season, the water change system can effectively prevent water quality deterioration, provide a good living environment for leeches, and thus improve the aquaculture efficiency and economic benefits.

[0003] The patent with the application number CN202420439453.3 discloses an automatic water change structure for a leech aquaculture pond, including a water storage tank, a water pump, a water inlet component, a movable key, a thin rope, a floating ball, and a dissolved oxygen meter. When the dissolved oxygen meter measures that the oxygen content inside the aquaculture pond is low, the water pump is started to drain the sewage inside the aquaculture pond. At this time, the floating ball 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 aquaculture pond. When the dissolved oxygen meter measures that the oxygen content inside the aquaculture pond is appropriate, the water pump stops working. When the water level reaches the groove, the floating ball rises due to buoyancy and leaves the movable key, and the water inlet pump stops working, completing the water change.

[0004] However, traditional leech aquaculture water change equipment mostly relies on manual step-by-step operation. The water change and dirt cleaning functions are separated, requiring additional intervention, with low efficiency and prone to poor drainage due to filter clogging. It is also unable to clean dirt synchronously during water change, and the transmission components are easily affected by water flow impact or sudden load changes, resulting in jamming or failure, with insufficient stability. In addition, the layout of the filter screen and slag discharge structure is unreasonable, dirt is easily accumulated or the water body is secondarily polluted, exacerbating component wear, and the maintenance cost remains high. The overall structure is loose, making it difficult to meet the high-frequency water change requirements, restricting the water quality management effect and the expansion of aquaculture scale.

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

[0006] The purpose of the present invention is to provide an automatic water change device suitable for leech aquaculture to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: An automatic water change device suitable for leech aquaculture, including an aquaculture box, inside which a grid and a pair of touch switches are provided. A driving device and a drainage mechanism are also provided inside the aquaculture box; The driving device includes a push plate moving inside the breeding box and a pair of slide bars moving with the push plate, and the push plate contacts a pair of touch switches to inject breeding water into the breeding box; The drainage mechanism comprises an outer sleeve, an inner rod arranged inside the outer sleeve, a rotating part sleeved outside the bottom end of the inner rod, and a transmission part arranged outside the outer sleeve. A cavity for aquaculture water to pass through is reserved between the outer sleeve and the inner rod. A water hole that passes through from top to bottom is opened inside the inner rod. 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 transmission part comprises a rotating shaft, ratchets clamped at both ends of the rotating shaft, and sleeve teeth sleeved on the outside of the ratchet and rotating as the slide bar moves leftward. After the sleeve teeth rotate, the rotating part is driven to rotate to clean the breeding dirt.

[0008] 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 clamped and fixed to the box body.

[0009] In the technical solution of the present invention, a drainage hole is provided on the inner bottom surface of the box body below the drainage mechanism, a plurality of regularly distributed slag discharge grooves are provided on the inner bottom surface of the box body outside the drainage hole, and a slide groove is also provided at the bottom of the box body.

[0010] 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 interior 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 interior of the limit frame. A number of racks are welded below the right end of the sliding rod.

[0011] In the technical solution of the present invention, a plurality 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 alternately distributed with the plurality of slag discharge troughs. A jacket cover is welded to the bottom of the outer wall of the outer sleeve, and wall through grooves are provided at the positions of the outer wall of the jacket cover corresponding to the plurality of filter screens.

[0012] 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 through hole and the drainage hole correspond to each other.

[0013] In the technical solution of the present invention, the rotating part includes a rotating ring rotatably connected to the outside of the outer sleeve, a plurality of scrapers welded and fixed to the outside of the rotating ring, a ring tooth mounted on the top of the outer wall of the rotating ring, and a sealing ring welded above the plurality of scrapers.

[0014] In the technical solution of the present invention, annular wall through grooves penetrating inside and outside are formed between several scraping plates on the outer wall of the rotating ring, and the outer ends of both the scraping plates and the sealing ring are in contact with the inner wall of the outer sleeve.

[0015] In the technical solution of the present invention, the transmission part further includes a worm sleeved on the outer side wall of the rotating shaft and several pawls rotatably connected to the inner ring wall of the sleeve teeth.

[0016] In the technical solution of the present invention, the worm is meshed with the ring teeth, and the sleeve teeth are meshed with the rack below the right end of the sliding rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. For the automatic water changing device applicable to leech farming, through the movement of the push plate, the water inlet and drainage operations are accurately controlled, and the automatic discharge and replenishment of the breeding water are realized by combining the siphon principle, reducing the frequency of manual intervention. The meshing design of the sliding rod and the transmission part drives the rotation of the rotating part synchronously during the water changing process, and the dirt intercepted by the filter screen is automatically scraped into the slag discharge tank by the scraping plate, effectively avoiding the blockage of the filter screen and maintaining the water quality clean, realizing the coordinated operation of water changing and dirt cleaning, and greatly improving the management efficiency of the leech breeding environment.

[0018] 2. For the automatic water changing device applicable to leech farming, through the one-way rotation of the rotating part, the mechanical jamming problem caused by water flow impact or load mutation is avoided. In addition, the staggered distribution design of the filter screen and the slag discharge tank combined with the anti-overflow function of the sealing ring further optimizes the water flow path and the dirt separation effect, reduces the wear of mechanical components, the whole transmission system has a compact structure and reliable operation, shows good stability and durability during long-term operation, and reduces the maintenance cost. Description of the Drawings

[0019] Figure 1 is the overall structure schematic diagram of the present invention; Figure 2 is the sectional schematic diagram of the overall structure of the present invention; Figure 3 is the sectional schematic diagram of the breeding tank in the present invention; Figure 4 is the structure schematic diagram of the driving device in the present invention; Figure 5 is for the present invention Figure 4 the enlarged schematic diagram of part A; Figure 6 is the sectional schematic diagram of the drainage mechanism in the present invention; Figure 7 is the partial sectional schematic diagram of the drainage mechanism in the present invention; Figure 8 is for the present invention Figure 7 the side view of the structure; Figure 9 It is a schematic structural diagram of the rotating part in the present invention; Figure 10 It is a schematic structural diagram of the transmission part in the present invention; Figure 11 For the present invention Figure 10 An enlarged schematic diagram of part B; Explanation of reference numerals in the drawings: 100, breeding box; 110, box body; 111, drain hole; 112, slag discharge groove; 113, chute; 120, grid; 130, limiting frame; 140, touch switch; 150, water inlet pipe; 200, driving device; 210, motor; 220, push plate; 230, lead screw; 240, slide bar; 241, rack; 300, drainage mechanism; 310, outer sleeve; 320, outer cover; 321, through groove in the cover wall; 330, inner inserted rod; 331, water through hole; 340, filter screen; 350, rotating part; 351, rotating ring; 3510, through groove in the ring wall; 352, scraping plate; 353, ring gear; 354, sealing ring; 360, transmission part; 361, rotating shaft; 362, worm; 363, ratchet; 364, sleeve gear; 365, ratchet pawl. Detailed implementation manners

[0020] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-11 As shown, this embodiment provides a technical solution: An automatic water-changing device applicable to leech breeding, including a breeding box 100. Inside the breeding box 100, there is a grid 120 and a pair of touch switches 140. Inside the breeding box 100, there is also a driving device 200 and a drainage mechanism 300; In this embodiment, as Figures 2-3 shown, the breeding box 100 further includes a box body 110, a limiting frame 130 provided on the outer side wall of the box body 110, and a water inlet pipe 150 controlled by the touch switch 140. The grid 120 is fixedly connected to the inner side wall of the box body 110 by screws, and both the limiting frame 130 and the touch switch 140 are fixedly clamped to the box body 110.

[0022] Specifically, a drainage hole 111 is formed 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 formed on the inner bottom surface of the box body 110 outside the drainage hole 111 , and a chute 113 is formed at the bottom of the box body 110 .

[0023] Furthermore, the box body 110 is used to provide a breeding area for leeches, the slide groove 113 is used to provide a moving area for the structure inside the driving device 200, the grid 120 is used to prevent dirt and leeches from invading the area where the internal structure of the driving 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 driving 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 to shut down the solenoid valve and stop the water flow.

[0024] In this embodiment, Figures 4-5 As shown, the driving device 200 includes a push plate 220 moving inside the breeding box 100 and a pair of slide bars 240 moving 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 .

[0025] 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 interior 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 interior of the limit frame 130. A plurality of racks 241 are welded below the right end of the sliding rod 240.

[0026] Furthermore, after the motor 210 is started, it drives the screw rod 230 to rotate, so that the push plate 220 can 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.

[0027] In this embodiment, Figures 6-8 As shown, the drainage mechanism 300 includes an outer sleeve 310, an inner rod 330 arranged inside the outer sleeve 310, a rotating part 350 sleeved 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 that passes through from top to bottom is opened inside the inner rod 330. The push plate 220 contacts the grid 120 to raise the water level in the aquaculture box 100, and the aquaculture water is automatically discharged from the water hole 331 through the siphon principle.

[0028] Specifically, a plurality of regularly distributed openings are formed at the bottom of the outer sleeve 310, and a filter screen 340 is clamped inside each opening. The plurality of filter screens 340 and the plurality of slag discharge grooves 112 are staggered. An outer sleeve cover 320 is welded to the bottom of the outer wall of the outer sleeve 310, and a cover wall through groove 321 is formed at a position corresponding to each of the plurality of filter screens 340 on the outer wall of the outer sleeve cover 320.

[0029] Further, both the outer sleeve 310 and the inner insertion rod 330 are clamped and fixed on the inner bottom surface of the box body 110, and the positions of the water through holes 331 and the drain holes 111 correspond to each other.

[0030] Further, the aquaculture water enters through the cover wall through groove 321 on the outer sleeve cover 320, and after being filtered by the filter screen 340, it flows into the cavity between the outer sleeve 310 and the inner insertion 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 upper part of the water through hole 331, the water flow will be discharged to the outside of the box body 110 through the water through hole 331 under the action of atmospheric pressure.

[0031] In this embodiment, as Figure 9 shown, the rotating part 350 includes a rotating ring 351 rotatably connected to the outside of the outer sleeve 310, a plurality of scraping plates 352 welded and fixed to the outside of the rotating ring 351, a ring gear 353 sleeved on the top end of the outer wall of the rotating ring 351, and a sealing ring 354 welded above the plurality of scraping plates 352.

[0032] Specifically, an internally and externally penetrating ring wall through groove 3510 is formed between the plurality of scraping plates 352 on the outer wall of the rotating ring 351, and the outer ends of the scraping plates 352 and the sealing ring 354 are in contact with the inner wall of the outer sleeve cover 320.

[0033] Further, after the rotating ring 351 rotates, the plurality of scraping plates 352 will rotate accordingly, and scrape the aquaculture dirt into the inside of the slag discharge groove 112. The ring wall through groove 3510 is used for the aquaculture water to enter the cavity between the outer sleeve 310 and the inner insertion rod 330 through the filter screen 340, and the sealing ring 354 is used to prevent the water flow from overflowing.

[0034] In this embodiment, as Figures 10-11 shown, the transmission part 360 includes a rotating shaft 361, ratchets 363 clamped at both ends of the rotating shaft 361, and a sleeve gear 364 sleeved on the outside of the ratchet 363 and rotating as the sliding rod 240 moves leftward. After the sleeve gear 364 rotates, it drives the rotating part 350 to rotate to clean the aquaculture dirt.

[0035] Specifically, the transmission part 360 further includes a worm 362 sleeved on the outer side wall of the rotating shaft 361 and a plurality of pawls 365 rotatably connected to the inner ring wall of the sleeve gear 364.

[0036] Further, the worm 362 meshes with the ring gear 353, and the sleeve gear 364 meshes with the rack 241 below the right end of the slide bar 240.

[0037] Further, when the push plate 220 moves leftward, the rack 241 below the slide bar 240 will contact the sleeve gear 364, driving the sleeve gear 364 to rotate. At this time, several pawls 365 inside the sleeve gear 364 will drive the ratchet wheel 363 to rotate, and then the rotating shaft 361 together with the worm 362 will rotate. Thus, by the contact between the worm 362 and the ring gear 353, the rotating ring 351 is driven to rotate.

[0038] When the automatic water-changing device suitable for leech breeding of the present invention is in use, first control the motor 210 to drive the lead screw 230 to rotate forward, driving the push plate 220 to move rightward inside the box body 110. After the push plate 220 contacts the grid 120, the water level in the box body 110 rises. At this time, the water level in the cavity between the outer sleeve 310 and the inner insertion rod 330 rises together. Then, when the water level exceeds the upper part of the water passing hole 331, due to the siphon principle, under the action of atmospheric pressure, the water in the box body 110 will be discharged from the water passing hole 331 out of the box body 110, and the dirt generated by breeding will be intercepted by the filter screen 340 between the two scraper plates 352. Subsequently, when the breeding water is drained out, control the motor 210 to drive the lead screw 230 to rotate reversely, and the push plate 220 moves leftward and contacts the touch switch 140. Then, the breeding water enters the box body 110 from the water inlet pipe 150, thus completing the water-changing operation. And when the push plate 220 moves leftward, the rack 241 below the slide bar 240 will contact the sleeve gear 364, driving the sleeve gear 364 to rotate. At this time, several pawls 365 inside the sleeve gear 364 will drive the ratchet wheel 363 to rotate, and then the rotating shaft 361 together with the worm 362 will rotate. Thus, by the contact between the worm 362 and the ring gear 353, the rotating ring 351 is driven to rotate. At this time, the breeding dirt remaining between the two scraper plates 352 will rotate with the rotating ring 351 and be scraped by the scraper plate 352 above the slag discharge groove 112, thus completing the cleaning of the dirt outside the filter screen 340.

[0039] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the specification and its equivalents.

Claims

1. An automatic water-changing device suitable for leech farming, comprising a breeding tank (100), characterized in that: The breeding box (100) is provided with a grid (120) and a pair of touch switches (140) inside, and the breeding box (100) is also provided with a driving device (200) and a drainage mechanism (300) inside; The driving device (200) comprises a push plate (220) that moves inside the breeding box (100) and a pair of sliding rods (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); The drainage mechanism (300) comprises an outer sleeve (310), an inner rod (330) arranged inside the outer sleeve (310), a rotating part (350) sleeved 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 provided inside the inner rod (330) and passes through from top to bottom; the push plate (220) contacts the grid (120) to raise the water level in the aquaculture box (100); and the aquaculture water is automatically discharged from the water hole (331) by the siphon principle; The transmission part (360) comprises 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 bar (240) moves leftward. When the sleeve tooth (364) rotates, it drives the rotating part (350) to rotate and clean the breeding dirt.

2. The automatic water-changing device applicable to leech farming according to claim 1, characterized in that: The breeding box (100) further comprises 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; the limit frame (130) and the touch switch (140) are both fixedly connected to the box body (110).

3. The automatic water changing device applicable to leech breeding according to claim 2, wherein: The inner bottom surface of the box body (110) is provided with a drainage hole (111) below the drainage mechanism (300); the inner bottom surface of the box body (110) is provided with a plurality of regularly distributed slag discharge grooves (112) outside the drainage hole (111); and the bottom of the box body (110) is also provided with a chute (113).

4. The automatic water changing device applicable to leech farming according to claim 3, characterized in that: The driving device (200) further comprises a motor (210) and a lead screw (230) coaxially connected to an 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 has a size that matches the size of the box body (110); the outer concave plate of the push plate (220) is slidably connected to the interior of the slide groove (113) and is threadedly connected to the lead screw (230); the slide rod (240) is clamped and fixed to the outer wall of the push plate (220) and has an end slidably connected to the interior of the limit frame (130); and a plurality of racks (241) are welded below the right end of the slide rod (240).

5. The automatic water changing device applicable to leech farming according to claim 1, characterized in that: The bottom of the outer sleeve (310) is provided with a number of regularly distributed openings, and a filter screen (340) is clamped inside the openings. The number of filter screens (340) and a number of slag discharge grooves (112) are staggered. The bottom of the outer wall of the outer sleeve (310) is welded with an outer sleeve cover (320), and cover wall through grooves (321) are provided at positions corresponding to the number of filter screens (340) on the outer wall of the outer sleeve cover (320).

6. The automatic water-changing device applicable to leech breeding according to claim 1, characterized in that: The outer sleeve (310) and the inner insertion rod (330) are both clamped and fixed on the inner bottom surface of the box body (110), and the positions of the water through holes (331) and the drain holes (111) correspond to each other.

7. The automatic water changing device applicable to leech breeding according to claim 5, wherein: The rotating part (350) includes a rotating ring (351) rotatably connected to the outside of the outer sleeve (310), a number of scrapers (352) welded and fixed to the outside of the rotating ring (351), a ring gear (353) sleeved on the top end of the outer wall of the rotating ring (351), and a sealing ring (354) welded above the number of scrapers (352).

8. The automatic water changing device applicable to leech farming according to claim 7, wherein: Circumferential wall through grooves (3510) communicating inside and outside are provided between the number of scrapers (352) on the outer wall of the rotating ring (351), and the outer ends of the scrapers (352) and the sealing ring (354) are both in contact with the inner wall of the outer sleeve cover (320).

9. The automatic water changing device applicable to leech breeding according to claim 4, wherein: The transmission part (360) further includes a worm (362) sleeved on the outer side wall of the rotating shaft (361) and a number of ratchet pawls (365) rotatably connected to the inner circumferential wall of the sleeve gear (364).

10. The automatic water changing device applicable to leech breeding according to claim 9, wherein: The worm (362) meshes with the ring gear (353), and the sleeve gear (364) meshes with a rack (241) below the right end of the sliding rod (240).

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