Ecological dry breeding net bed for laying ducks

Abstract

The invention discloses a laying duck ecological dry breeding net bed, and relates to the technical field of laying duck ecological breeding, the laying duck ecological dry breeding net bed comprises a support, a net bed, a water drinking mechanism, a dry-wet separation mechanism and a cleaning mechanism, water collecting tanks are arranged on the front side and the rear side of the bottom of the support, a manure collecting tank is arranged between the two water collecting tanks, the net bed is fixedly arranged on the support, and the net bed is fixedly arranged on the support. A net cover is arranged on the support, a water drinking mechanism is arranged at the front end of the support, a dry-wet separation mechanism is rotatably arranged below the net bed, a cleaning mechanism is slidably arranged on the dry-wet separation mechanism, the dry-wet separation mechanism comprises a collecting plate and a blocking net, duck manure is collected through the collecting plate, and the duck manure is separated from sewage through self deflection; sewage is collected through the water collecting tank, duck manure is collected through the manure collecting tank, then the duck manure is automatically cleaned, the cleaning mechanism is used for cleaning the collecting plate, the duck manure adhering to the collecting plate is effectively scraped, and the cleanliness of the collecting plate is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of ecological breeding of laying ducks, in particular to an ecological dry breeding net bed for laying ducks. Background Art

[0002] Online farming of laying ducks is a new model of dry farming of laying ducks. In the initial stage, it consists of pens, playgrounds, and paddling pools. The pens and playgrounds are farmed online, which is a semi-dry farming model. With the continuous development of technology, the paddling pool will be gradually eliminated, and only net beds are needed to be built as pens to raise laying ducks. A manure collection pool is set up under the pens, and automatic feeding, drinking water, manure cleaning and disinfection systems are installed as needed to implement a closed net bed dry farming model. In this model, a grid is set up at a certain height from the ground, and nets or grids made of metal, plastic, etc. are laid on the grid to form a net bed. The ducks are raised on the nets or grids, and the manure falls into the collection pool below through the mesh or gaps in the grid.

[0003] This dry farming method requires timely cleaning of duck manure to prevent the accumulation of duck manure to produce odor and harmful substances. In addition, when the ducks drink water, a large amount of drinking water will be splashed out of the drinking water mechanism and mixed with the duck manure, thereby causing a waste of water resources. The fermentation rate of duck manure mixed with sewage is accelerated, which in turn accelerates the rate at which the duck manure produces odor and harmful substances. It is necessary to increase the number of times the duck manure is cleaned and the cleaning rate is increased, which requires a large amount of manpower for cleaning, and the long-term cleaning work will also cause harm to the human body.

[0004] Therefore, it is necessary to provide an ecological dry-raising net bed for laying ducks to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ecological dry-raising net bed for laying ducks, comprising a support, a net bed, a drinking water mechanism, a dry-wet separation mechanism and a cleaning mechanism, wherein water collecting troughs are arranged at the front and rear sides of the bottom of the support, a feces collecting trough is arranged between the two water collecting troughs, the net bed is fixedly arranged on the support, a net cover is arranged on the support, a drinking water mechanism is arranged at the front end of the support, a dry-wet separation mechanism is rotatably arranged below the net bed, and a cleaning mechanism is slidably arranged on the dry-wet separation mechanism;

[0006] The dry-wet separation mechanism includes a collecting plate and a baffle net, wherein two collecting plates are configured and are rotatably arranged on the support respectively, the two collecting plates are driven by motor one and motor two respectively, and the rotating ends of the two collecting plates are staggered up and down, the ends of the two collecting plates close to each other are engaged with each other, and the ends of the two collecting plates close to the support are rotatably arranged with a baffle net.

[0007] Preferably, a slide groove is provided at one end of the collecting plate close to the baffle net, a support plate is sealingly and slidingly arranged in the slide groove, a spring is arranged between the support plate and the collecting plate, the support plate can be supported on the baffle net, and an inclined surface is arranged on the slide groove.

[0008] Preferably, a limiting groove is provided on the collecting plate;

[0009] A limiting rod is fixedly arranged on the retaining net, and the limiting rod slides along the limiting groove.

[0010] Preferably, a guide wheel is rotatably provided on the support plate, and the guide wheel rotates along the baffle net;

[0011] A slot is provided at one end of the support plate close to the blocking net, a holder is slidably arranged in the slot, a second spring is arranged between the holder and the slot, and a cleaning brush and a scraper are fixedly arranged on the holder.

[0012] Preferably, the cleaning mechanism includes a cleaning seat, a cleaning plate, a throwing claw seat and a throwing claw rod, wherein the cleaning seat is configured in two, a cleaning plate is fixedly arranged between the two cleaning seats, a throwing claw seat is slidably arranged at the front end of the cleaning plate, and a plurality of throwing claw rods are fixedly arranged on the throwing claw seat.

[0013] Preferably, a clamping rod is rotatably provided on the cleaning seat, the clamping rod is driven by a motor three, and a gear one is fixedly provided on the clamping rod;

[0014] The collecting plate is provided with an annular groove, the annular groove is provided with a gear ring, the clamping rod is clamped into the annular groove and slides along the annular groove, and the gear 1 is meshed with the gear ring.

[0015] Preferably, a rack is provided on the throwing claw seat;

[0016] A gear 2 is rotatably arranged in the cleaning plate, and the gear 2 is meshed with the rack and driven by a motor 4.

[0017] Preferably, the drinking water mechanism comprises a water inlet pipe, a drain pipe, a drinking water pipe and a fixing plate, wherein the water inlet pipe and the drain pipe are fixedly arranged at the left and right ends of the support respectively, annular grooves are provided in the water inlet pipe and the drain pipe, the drinking water pipe is H-shaped and slides along the annular groove, a plurality of fixing rings are fixedly arranged on the drinking water pipe, a fixing plate is fixedly arranged between the water inlet pipe and the drain pipe, and a telescopic rod is arranged between the fixing plate and the fixing ring.

[0018] Preferably, both ends of the drinking water pipe are through-set and have a plurality of semi-arc openings;

[0019] The water inlet pipe is provided with a water inlet, the drain pipe is provided with a drain outlet, and the height of the drain outlet is higher than the height of the water inlet.

[0020] Compared with the prior art, the present invention provides an ecological dry-rearing net bed for laying ducks, which has the following beneficial effects:

[0021] The present invention is provided with a dry-wet separation mechanism, in which two collecting plates are arranged, and the duck manure and sewage are separated by the deflection of the two collecting plates, and the sewage and feces are respectively transported to the water collection tank and the feces collection tank, so as to realize the timely cleaning of the duck manure, prevent the duck manure from accumulating to produce odor and harmful substances, collect the sewage, and reuse it after filtering and purification, and use the feces as fertilizer and nutrient, so as to effectively improve the resource utilization rate. In addition, a cleaning mechanism is arranged to clean the collecting plate, so that the Duck droppings can be effectively cleaned, thereby improving the cleanliness of the dry-wet separation mechanism, supplying water to laying ducks through the drinking water mechanism, and using a telescopic rod to adjust the height of the drinking water pipe in real time, thereby reducing the amount of drinking water splashing while facilitating the laying ducks to drink water, and setting a water inlet pipe and a drain pipe, and separating clean water from drinking water mixed with food residues in the drinking water pipe by raising and lowering the drinking water pipe, thereby effectively preventing clean drinking water from being contaminated, and discharging and collecting drinking water mixed with food residues through the drain pipe, and reusing it after filtering, thereby effectively improving the utilization rate of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 It is a cross-sectional structural schematic diagram of the dry-wet separation mechanism in the present invention;

[0025] Figure 4 for Figure 2 A magnified schematic diagram of the middle part;

[0026] Figure 5 for Figure 2 The enlarged schematic diagram of the middle B part;

[0027] Figure 6 for Figure 2 Enlarged schematic diagram of middle C part;

[0028] Figure 7 for Figure 3 The enlarged schematic diagram of the middle D part;

[0029] In the figure: 1, support; 11, water collection trough; 12, feces collection trough; 2, net bed; 3, drinking water mechanism; 31, water inlet pipe; 311, water inlet; 32, drainage pipe; 321, drainage outlet; 33, drinking water pipe; 331, fixing ring; 332, semi-arc opening; 34, fixing plate; 35, telescopic rod; 4, dry-wet separation mechanism; 41, collecting plate; 411, slide groove; 412, limit groove; 413, rectangular groove; 41 4. Gear ring; 42. Block net; 421. Limit rod; 43. Support plate; 431. Guide wheel; 432. Slot; 433. Holder; 434. Spring 2; 435. Cleaning brush; 436. Scraper; 44. Spring 1; 5. Cleaning mechanism; 51. Cleaning seat; 52. Cleaning plate; 521. Gear 2; 53. Claw seat; 531. Rack; 54. Claw rod; 55. Holder; 56. Gear 1; 6. Net cover. DETAILED DESCRIPTION

[0030] See also Figure 1 to Figure 7 In an embodiment of the present invention, an ecological dry-raising net bed for laying ducks comprises a support 1, a net bed 2, a drinking water mechanism 3, a dry-wet separation mechanism 4 and a cleaning mechanism 5, wherein water collecting tanks 11 are arranged on the front and rear sides of the bottom of the support 1, a feces collecting tank 12 is arranged between the two water collecting tanks 11, the net bed 2 is fixedly arranged on the support 1, a net cover 6 is arranged on the support 1, a drinking water mechanism 3 is arranged at the front end of the support 1, a dry-wet separation mechanism 4 is rotatably arranged below the net bed 2, and a cleaning mechanism 5 is slidably arranged on the dry-wet separation mechanism 4;

[0031] The dry-wet separation mechanism 4 includes a collecting plate 41 and a blocking net 42, wherein two collecting plates 41 are configured and are rotatably set on the support 1 respectively, the two collecting plates 41 are driven by motor one and motor two respectively, and the rotating ends of the two collecting plates 41 are staggered up and down, the ends of the two collecting plates 41 close to each other are locked with each other, and the ends of the two collecting plates 41 close to the support 1 are both rotatably set with a blocking net 42.

[0032] During implementation, the support 1 is separated by the mesh bed 2, and the laying ducks move above the mesh bed 2. The feces and sewage produced by the laying ducks fall onto the dry-wet separation mechanism 4 through the mesh bed 2, and the sewage is transported to the sump 11 under the action of the dry-wet separation mechanism 4, and the feces separated from the sewage are transported to the feces sump 12, and the dry-wet separation mechanism 4 is cleaned by the cleaning mechanism 5. When the feces fall on the collecting plate 41, the two collecting plates 41 are first driven to rotate by motors 1 and 2, so that the collecting plate 41 is tilted and one end with the baffle 42 descends, so that the feces and sewage move toward the baffle 42, and under the action of the baffle 42, the sewage passes through the baffle 42 and flows into the sump 11, and the feces remain on the collecting plate 41 under the action of the baffle 42. The collecting plate 41 is then driven to rotate, so that one end of the two collecting plates 41 with the baffle 42 is lifted, so that the feces after dry and wet separation fall into the feces collecting trough 12. During this process, a small amount of feces may adhere to the collecting plate 41, and the cleaning mechanism 5 is driven to slide along the collecting plate 41, so as to clean the feces adhered to the collecting plate 41. After cleaning, the two collecting plates 41 are reset to collect feces and sewage, and then the sewage in the sump 11 is collected, filtered and purified for secondary use, and the feces are collected for fertilizer production and nutrient, thereby reducing resource waste, thereby realizing automatic separation and cleaning of duck feces and sewage, and preventing duck feces from accumulating to produce odor and harmful substances.

[0033] In this embodiment, Figure 3 A slide groove 411 is provided at one end of the collecting plate 41 close to the blocking net 42, a support plate 43 is sealed and slidably arranged in the slide groove 411, a spring 44 is arranged between the support plate 43 and the collecting plate 41, the support plate 43 can be supported on the blocking net 42, and an inclined surface is arranged on the slide groove 411.

[0034] In this embodiment, Figure 3 and Figure 4 , the collecting plate 41 is provided with a limiting groove 412;

[0035] A limiting rod 421 is fixedly disposed on the blocking net 42 , and the limiting rod 421 slides along the limiting groove 412 .

[0036] In this embodiment, Figure 4 and Figure 7 A guide wheel 431 is rotatably provided on the support plate 43, and the guide wheel 431 rotates along the blocking net 42;

[0037] A slot 432 is formed at one end of the support plate 43 close to the blocking net 42 , a holder 433 is slidably disposed in the slot 432 , a spring 434 is disposed between the holder 433 and the slot 432 , and a cleaning brush 435 and a scraper 436 are fixedly disposed on the holder 433 .

[0038] During implementation, the cleaning mechanism 5 slides along the collecting plate 41 and can drive the blocking net 42 to deflect. When the blocking net 42 deflects, the blocking net 42 squeezes the support plate 43 and, under the action of the guide wheel 431, the support plate 43 slides along the slide groove 411. During this process, the support plate 43 is always close to the blocking net 42 under the action of the spring 1 44. The holder 433, under the action of the spring 2 434, drives the cleaning brush 435 and the scraper 436 to press against the blocking net 42, so that the cleaning brush 435 can push the support plate 43 during the sliding process. The feces adhered to the blocking net 42 are cleaned, and the cleaned feces are scraped onto the collecting plate 41 under the action of the scraper 436, and the feces adhered to the support plate 43 are scraped off through the inclined surface of the chute 411 and fall into the feces collecting trough 12 along the collecting plate 41, thereby preventing feces from remaining on the blocking net 42 and maintaining the cleanliness of the blocking net 42 and the collecting plate 41. Subsequently, when the cleaning mechanism 5 is separated from the blocking net 42, the support plate 43 slides under the action of the spring 44 and pushes the blocking net 42 to deflect and reset, thereby enabling the blocking net 42 to continuously separate feces and sewage.

[0039] In this embodiment, Figure 5 and Figure 6 The cleaning mechanism 5 includes a cleaning seat 51, a cleaning plate 52, a claw seat 53 and a claw rod 54, wherein the cleaning seat 51 is configured in two, a cleaning plate 52 is fixedly arranged between the two cleaning seats 51, a claw seat 53 is slidably arranged at the front end of the cleaning plate 52, and a plurality of claw rods 54 are fixedly arranged on the claw seat 53.

[0040] In this embodiment, a clamping rod 55 is rotatably provided on the cleaning seat 51, and the clamping rod 55 is driven by a motor 3, and a gear 1 56 is fixedly provided on the clamping rod 55;

[0041] The collecting plate 41 is provided with a rectangular groove 413 , and the rectangular groove 413 is provided with a gear ring 414 . The clamping rod 55 is clamped into the rectangular groove 413 and slides along the rectangular groove 413 , and the gear 1 56 is meshed with the gear ring 414 .

[0042] In this embodiment, a rack 531 is provided on the claw seat 53;

[0043] A second gear 521 is rotatably disposed in the cleaning plate 52 , and the second gear 521 meshes with the rack 531 and is driven by a fourth motor.

[0044] During implementation, the gear 1 56 is driven to rotate by the motor 3, and under the action of the gear ring 414, the clamping rod 55 slides along the rectangular groove 413, and drives the cleaning seat 51 to slide, so that the cleaning plate 52 slides along the collecting plate 41 to clean the feces on the collecting plate 41, and during the cleaning process, the gear 2 521 is driven to rotate back and forth by the motor 4, so that the claw seat 53 slides back and forth under the action of the rack 531, and then drives the claw rod 54 to claw the feces adhered to the collecting plate 41, thereby further improving the cleaning effect of the collecting plate 41. In addition, when the cleaning mechanism 5 slides to the output end of the collecting plate 41, the cleaning mechanism 5 can be lifted and separated from the surface of the collecting plate 41. During this process, the claw seat 53 can hit the cleaning plate 52 while sliding back and forth, causing the cleaning plate 52 to vibrate, thereby causing the feces adhering to the cleaning plate 52 to be shaken off. When the lifted cleaning plate 52 slides to one side of the blocking net 42, it can smoothly cross the blocking net 42 and get stuck at one end of the blocking net 42 close to the support 1, thereby allowing the cleaning mechanism 5 to drive the blocking net 42 to deflect when cleaning the collecting plate 41.

[0045] In this embodiment, the drinking water mechanism 3 includes a water inlet pipe 31, a drainage pipe 32, a drinking water pipe 33 and a fixing plate 34, wherein the water inlet pipe 31 and the drainage pipe 32 are fixedly arranged at the left and right ends of the support 1 respectively, and an annular groove is provided in the water inlet pipe 31 and the drainage pipe 32. The drinking water pipe 33 is H-shaped and slides along the annular groove. A plurality of fixing rings 331 are fixedly arranged on the drinking water pipe 33, a fixing plate 34 is fixedly arranged between the water inlet pipe 31 and the drainage pipe 32, a telescopic rod 35 is arranged between the fixing plate 34 and the fixing ring 331, and the telescopic rod 35 is an electric telescopic rod.

[0046] In this embodiment, the two ends of the drinking water pipe 33 are through-set and have a plurality of semi-arc openings 332;

[0047] The water inlet pipe 31 is provided with a water inlet 311 , and the drain pipe 32 is provided with a drain outlet 321 . The height of the drain outlet 321 is higher than that of the water inlet 311 .

[0048] During implementation, the telescopic rod 35 is used to drive the drinking pipe 33 to slide. When the laying duck needs to drink water, the drinking pipe 33 is driven to slide downward so that the drinking pipe 33 is connected with the water inlet 311 on the water inlet pipe 31, and then the drinking water is transported to the drinking pipe 33 through the water inlet pipe 31. Then the laying duck drinks water through the semi-arc opening 332 on the drinking pipe 33. When the drinking is finished, the drinking pipe 33 is driven to slide upward so that the water inlet 311 is closed, and the drain outlet 321 is connected with the drinking pipe 33, so that the drinking water in the drinking pipe 33 is discharged through the drain pipe 32, so that the drinking water mixed with food residues is separated from the clean water in the water inlet pipe 31 to prevent the clean water from being polluted, and the drained drinking water is filtered and reused, and the height of the drinking pipe 33 can be adjusted in real time during the drinking process, so as to reduce the amount of water splashing during the drinking process of the laying duck, and reduce the waste of water resources while facilitating the drinking of the laying duck.

[0049] In summary, when the present invention is implemented, the support 1 is separated by the mesh bed 2, and the laying ducks move above the mesh bed 2. The feces and sewage produced by the laying ducks fall onto the dry-wet separation mechanism 4 through the mesh bed 2, and the sewage is transported to the water collection tank 11 under the action of the dry-wet separation mechanism 4, and the feces separated from the sewage are transported to the feces collection tank 12, and the dry-wet separation mechanism 4 is cleaned by the cleaning mechanism 5, so that the feces adhered to the collection plate 41 can be effectively removed, so that the duck feces can be cleaned up in time and effectively, to prevent the duck feces from accumulating to produce odor and harmful substances, and to separate the sewage and feces. Dry-wet separation treatment is carried out so that the sewage can be fully utilized after filtering and purification, and the collected feces can be used as nutrients or fertilizers, thereby effectively improving resource utilization. In addition, water is supplied to the laying ducks through the drinking water mechanism 3, and the height of the drinking water pipe 33 is adjusted in real time to facilitate the laying ducks to drink water. During the drinking process, the water in the drinking water pipe 33 will be mixed with food residues. The water inlet pipe 31 and the drain pipe 32 are set to separate clean drinking water from polluted water mixed with impurities to prevent the clean drinking water from being polluted, and the drinking water mixed with food residues is filtered and reused to maintain the cleanliness of the drinking water.

[0050] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ecological dry-raising net bed for laying ducks, characterized in that: The invention comprises a support (1), a net bed (2), a drinking water mechanism (3), a dry-wet separation mechanism (4) and a cleaning mechanism (5), wherein water collecting troughs (11) are arranged at the front and rear sides of the bottom of the support (1), a feces collecting trough (12) is arranged between the two water collecting troughs (11), the net bed (2) is fixedly arranged on the support (1), a net cover (6) is arranged on the support (1), a drinking water mechanism (3) is arranged at the front end of the support (1), a dry-wet separation mechanism (4) is rotatably arranged below the net bed (2), and a cleaning mechanism (5) is slidably arranged on the dry-wet separation mechanism (4); The dry-wet separation mechanism (4) comprises a collecting plate (41) and a blocking net (42), wherein two collecting plates (41) are provided and are rotatably arranged on the support (1), respectively, the two collecting plates (41) are driven by motor one and motor two, respectively, and the rotating ends of the two collecting plates (41) are staggered up and down, the ends of the two collecting plates (41) close to each other are mutually engaged, and the ends of the two collecting plates (41) close to the support (1) are both rotatably arranged with a blocking net (42).

2. The ecological dry-raising net bed for laying ducks according to claim 1, characterized in that: A slide groove (411) is provided at one end of the collecting plate (41) close to the blocking net (42), a support plate (43) is provided in the slide groove (411) in a sealing and sliding manner, a spring (44) is provided between the support plate (43) and the collecting plate (41), the support plate (43) can be supported on the blocking net (42), and an inclined surface is provided on the slide groove (411).

3. The ecological dry-raising net bed for laying ducks according to claim 2, characterized in that: The collecting plate (41) is provided with a limiting groove (412); A limiting rod (421) is fixedly arranged on the blocking net (42), and the limiting rod (421) slides along the limiting groove (412).

4. The ecological dry-raising net bed for laying ducks according to claim 2, characterized in that: A guide wheel (431) is rotatably provided on the support plate (43), and the guide wheel (431) rotates along the barrier net (42); A slot (432) is provided at one end of the support plate (43) close to the blocking net (42), a holder (433) is slidably arranged in the slot (432), a second spring (434) is arranged between the holder (433) and the slot (432), and a cleaning brush (435) and a scraper (436) are fixedly arranged on the holder (433).

5. The ecological dry-raising net bed for laying ducks according to claim 1, characterized in that: The cleaning mechanism (5) comprises a cleaning seat (51), a cleaning plate (52), a claw throwing seat (53) and a claw throwing rod (54), wherein the cleaning seat (51) is configured in two, a cleaning plate (52) is fixedly arranged between the two cleaning seats (51), a claw throwing seat (53) is slidably arranged at the front end of the cleaning plate (52), and a plurality of claw throwing rods (54) are fixedly arranged on the claw throwing seat (53).

6. The ecological dry-raising net bed for laying ducks according to claim 5, characterized in that: A clamping rod (55) is rotatably provided on the cleaning seat (51), the clamping rod (55) is driven by a third motor, and a first gear (56) is fixedly provided on the clamping rod (55); The collecting plate (41) is provided with a rectangular groove (413), the rectangular groove (413) is provided with a gear ring (414), the clamping rod (55) is clamped into the rectangular groove (413) and slides along the rectangular groove (413), and the gear 1 (56) is meshed with the gear ring (414).

7. The ecological dry-raising net bed for laying ducks according to claim 5, characterized in that: The claw seat (53) is provided with a rack (531); A second gear (521) is rotatably provided in the cleaning plate (52), and the second gear (521) is meshed with the rack (531) and driven by a fourth motor.

8. The ecological dry-raising net bed for laying ducks according to claim 1, characterized in that: The drinking water mechanism (3) comprises a water inlet pipe (31), a drainage pipe (32), a drinking water pipe (33) and a fixing plate (34), wherein the water inlet pipe (31) and the drainage pipe (32) are fixedly arranged at the left and right ends of the support (1), respectively; an annular groove is provided in each of the water inlet pipe (31) and the drainage pipe (32); the drinking water pipe (33) is H-shaped and slides along the annular groove; a plurality of fixing rings (331) are fixedly arranged on the drinking water pipe (33); a fixing plate (34) is fixedly arranged between the water inlet pipe (31) and the drainage pipe (32); and a telescopic rod (35) is provided between the fixing plate (34) and the fixing ring (331).

9. The ecological dry-raising net bed for laying ducks according to claim 8, characterized in that: The drinking water pipe (33) is provided with a plurality of semi-arc openings (332) at both ends thereof; The water inlet pipe (31) is provided with a water inlet (311), the drainage pipe (32) is provided with a drainage outlet (321), and the height of the drainage outlet (321) is higher than the height of the water inlet (311).

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