Water circulating device for sponge urban landscape
Technical Field
The invention belongs to the field of sponge urban landscape devices, and particularly relates to a water circulating device for sponge urban landscape.
Background
The sponge city is a new generation of city rain and flood management concept, means that the city can be like a sponge, has good elasticity in the aspects of adapting to environmental changes and natural disasters brought by rainwater, can be called as a water elasticity city, is called as a low-impact development rainwater system construction in international terms, absorbs water, stores water, seeps water and purifies water when raining, releases and utilizes the stored water when needed, the park and the greening points in the city can be seen everywhere, both the park and the greening points can beautify the city and improve the air quality of the city, however, the prior green belt has poor water seepage and water storage capacity in rainy days, which causes surface runoff, so that people can not move around the green belt in a period of time, and in arid weather, manual regular watering is needed, so that the use of manpower is increased, and the manual watering is informed to adjust the watering frequency according with the change of the weather difficultly.
Disclosure of Invention
The invention provides a water circulating device for sponge urban landscapes, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a water circulation device for sponge urban landscapes comprises a water pool, wherein the side surface of the water pool is an annular surrounding barrier layer, the bottom of the water pool is a concrete layer, an inner cavity is formed in the center of the inside of the concrete layer, a vertical shaft is connected to a bottom bearing of the inner cavity, the upper end of the vertical shaft upwards penetrates through the inner cavity and is connected with a sealing bearing of the inner cavity, a driving assembly is arranged in the inner cavity and can drive the vertical shaft to rotate, a vertical sleeve is installed at the center of the top of the concrete layer through an installation frame, the sleeve is sleeved on the outer side of the vertical shaft, the connecting part of the vertical shaft and the sleeve is connected through the sealing bearing, an auger blade is installed on the outer side of the vertical shaft and is positioned on the inner side of the sleeve, a water inlet is formed in the bottom of the sleeve, a vertical pipe is fixedly connected to the top of the vertical shaft, the lower part of the vertical pipe is positioned in the sleeve, the connecting part of the vertical pipe is connected through the sealing bearing, a water outlet is formed in the lower part of the vertical pipe, and is positioned in the sleeve, the upper end of the standpipe is fixedly connected and communicated with a water spraying barrel, a plurality of water spraying holes are annularly and uniformly arranged on the outer side of the water spraying barrel, spray heads are uniformly arranged on the outer side of the water spraying holes, an annular planting belt is arranged on the outer side of the water pool, the annular planting belt and the water pool are combined into a bowl-shaped structure, the water pool is positioned at the central low-lying position of the bowl-shaped structure, the planting surface of the annular planting belt is a slope surface which is downwards inclined towards the middle part of the water pool, a plurality of rows of plants are annularly and uniformly planted on the planting slope surface of the annular planting belt, drainage grooves with semicircular sections are arranged between every two rows of plants, an annular water storage cavity is arranged inside the upper side wall of the annular enclosing layer, a plurality of water dripping holes are annularly and uniformly arranged on the side wall of the annular water storage cavity and communicated with the water pool, filter screens are arranged at the communication positions of the lower ends of the annular water storage cavity and all the drainage grooves, a water supply port is arranged at the lower part of the annular enclosing layer, and a water supply pipe is arranged in the water supply port, one end of the water supply pipe is communicated with the inside of the water pool, the other end of the water supply pipe is connected and communicated with a water supply device, the inside of the annular surrounding and blocking layer is provided with a cavity corresponding to the water supply pipe, a vertical first pipe is arranged in the cavity, the lower end of the first pipe is communicated with the top of the water supply pipe, a baffle is arranged inside the first pipe in a contact and matching manner, the baffle can move up and down along the first pipe, the baffle can seal the water supply pipe, a proximity switch is embedded at the position, close to the lower end, of the side wall of the first pipe, the proximity switch is connected with the driving assembly, a first check valve is arranged at the end, communicated with the water pool, of the water supply pipe, a pore is arranged inside the annular surrounding and blocking layer, a pore is arranged corresponding to the first pipe, a second pipe is arranged in the pore, the lower end of the second pipe is communicated with the upper end of the first pipe, a stay wire is arranged in the second pipe, and an annular floating block is arranged inside the annular surrounding and in a contact and matching manner, lower extreme and baffle fixed connection of acting as go-between, the upper end of acting as go-between pass behind the second pipe with annular kicking block fixed connection, annular kicking block can block the upper end export of second pipe, the annular encloses the interior wall ring shape of fender layer and evenly sets up the vertical guide rail of several recess and recess in-installation, all cooperate the installation second slider on the guide rail, second slider and annular kicking block fixed connection, the annular is enclosed the upper portion trompil and the downthehole overflow pipe that is equipped with of fender layer, the second check valve is installed to the inner of overflow pipe, the other end intercommunication drainage pipe of overflow pipe, the overflow pipe is located the upside of annular kicking block.
The water circulation device for the sponge city landscape comprises a vertical pipe, vertical first sliding grooves are symmetrically formed in the left side and the right side of the outer side wall of the vertical pipe, a first sliding block is installed in the first sliding grooves in a matched mode, a circular ring is sleeved on the outer side of the vertical pipe, the inner wall of the circular ring is fixedly connected with the first sliding block, a sleeve ring is arranged on the outer side of the upper portion of the sleeve, the inner side wall of the sleeve ring is in contact fit with the outer side wall of the sleeve, the circular ring is fixedly connected with a plurality of blades through a connecting support, a first floating block is fixedly connected with the bottom of the sleeve ring in an annular mode, the first floating block drives the blades to be half immersed in water, the blades can enable water in the middle of a water pool to diffuse towards the outer side during rotation, an annular groove with a U-shaped section is formed in the top of the annular floating block, a plurality of first through holes are uniformly formed in the annular floating block towards the side wall of the center of the water pool and communicated with the annular groove, the downside of first through-hole all with the surface of water parallel and level in the pond, several filtration pore and the inside intercommunication in pond have been seted up to the bottom of annular groove.
As above, the water circulation device for the sponge city landscape is characterized in that the lower side surface of the first through hole is hinged with the blocking block which inclines towards the upper part of one side far away from the water pool, the hinged shaft of the blocking block is sleeved with the torsion spring, the lower side surface of the first through hole is fixedly provided with the limiting block, and the limiting block enables the blocking block not to rotate around the hinged shaft to the center of the water pool.
According to the water circulation device for the sponge urban landscape, the annular surrounding and blocking layer is a soil layer.
According to the water circulation device for the sponge urban landscape, the annular surrounding barrier layer is a concrete layer, a plurality of second through holes are uniformly formed in the annular surrounding barrier layer in an annular mode, and a gravel reverse filter layer is arranged in each second through hole.
According to the water circulation device for the sponge urban landscape, the driving assembly comprises the motor, the motor with the upward output shaft is fixedly installed at the bottom of the inner cavity, and the output shaft of the motor is connected with the lower part of the vertical shaft through the gear transmission assembly.
As to the water circulation device for the sponge urban landscape, the mounting frame is a cylinder body with a plurality of filtering holes formed in the side wall, the bottom of the mounting frame is fixedly connected with the concrete layer, and the top of the mounting frame is fixedly connected with the lower end of the sleeve.
According to the water circulation device for the sponge urban landscape, the outer ends of the water dripping holes are fixedly connected and communicated with the water dripping pipes, and the outlet ends of the water dripping pipes are located between the annular floating block and the sleeve.
The invention has the advantages that: when the rain water treatment device is used in rainy days, rain water falls on the annular planting belt, when more rain water exists, one part of rain water seeps downwards, the other part of rain water flows into the annular water storage cavity after entering the drainage groove and finally enters the water tank, because the annular planting belt and the water tank are combined into a bowl-shaped structure, the terrain of the annular planting belt on two sides of the water tank is higher, the water in the soil seeps into the water tank to prevent the phenomenon of easy collapse caused by the increase of the internal stress of the soil, the surface runoff is reduced, when the water level in the water tank is higher, the water is discharged to the urban drainage channel through the overflow pipe to prevent the flooding phenomenon, the water in the drainage channel enters the water supply device after being treated for standby use, when in dry days, the water in the water tank is evaporated, the water level of the water in the water tank is reduced, the annular floating block is reduced along with the water level, and the annular floating block moves the baffle upwards through the pull wire to enable the water supply device to be dragged and used, The water tank is communicated with the water supply of the water tank, the opening of the water supply pipe is smaller at the moment, so that the water level can not drop too much at one time, but the baffle moves upwards for a short distance, the proximity switch is triggered, the proximity switch sends a signal to the control terminal, the control terminal controls the driving assembly to drive the vertical shaft to rotate, the vertical shaft drives the auger blade to rotate, so that the water in the water tank is sucked into the sleeve and then enters the vertical pipe, and finally is sprayed out from the inside to the outside of the water spraying cylinder, and the vertical pipe drives the water spraying cylinder to rotate continuously when the water in the water tank is sprayed out, so that the annular planting belt is sprayed annularly and uniformly, all plants can supplement water, the water simultaneously falls into the water tank to achieve the effect of oxygen increasing, the aquatic animals and plants in the water tank can grow, redundant water in the annular planting belt can seep into the water tank, the waste of water resources can not be caused, and the water level can drop rapidly along with the spraying of the water in the water tank, the longer the stroke of the annular floating block driving the baffle plate to move upwards, the larger the opening in the water supply pipe is, so that water for the water pool can be quickly supplemented until the water inflow is larger than the water outflow of the water pool, when the water level in the water pool rises to the original position, the baffle plate descends under the action of gravity to close the water supply pipe again, the proximity switch controls the driving assembly to be closed to stop spraying water, at the moment, part of water on the annular planting belt enters the annular water storage cavity through the drainage groove, then slowly drops into the water pool, the water level in the water pool is slowly supplemented as a prepared water source while the oxygen increasing effect of the water pool is achieved, and the situation that the weather is too hot and the water level in the water pool is too frequently reduced to damage a motor is prevented; the device has a simple structure and ingenious design, the annular water storage cavity and the water pool can jointly play a role in water storage and drainage in rainy days, plants are distributed around the annular water pool through the arrangement of the annular planting belt in arid days, so that the water spraying cylinder for spraying water in an annular mode can play a role in watering all the plants, the annular planting belt and the water pool are combined into a bowl-shaped structure, redundant water of the annular planting belt can seep into the water pool, the waste of surface runoff and water resources is reduced, the device can automatically detect the drought degree of the weather, the plants are watered more frequently when the weather is dry and hot, and the water level in the water pool evaporates quickly, so that the required water source for normal growth of the plants is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a zoom view of a top view structural schematic of the present invention; FIG. 3 is an embodiment of the present invention; FIG. 4 is an enlarged view of I of FIG. 1; FIG. 5 is an enlarged view of II of FIG. 1; FIG. 6 is an enlarged view of III of FIG. 1; FIG. 7 is an enlarged view of IV of FIG. 1; fig. 8 is an enlarged view of v of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A water circulation device for sponge urban landscapes comprises a water pool 1, wherein the side surface of the water pool 1 is an annular surrounding barrier layer 101, the bottom of the water pool 1 is a concrete layer 102, an inner cavity 2 is formed in the center of the interior of the concrete layer 102, a vertical shaft 3 is connected with a bottom bearing of the inner cavity 2, the upper end of the vertical shaft 3 upwards penetrates through the inner cavity 2 and is connected with a sealing bearing of the vertical shaft, a driving assembly is arranged in the inner cavity 2 and can drive the vertical shaft 3 to rotate, a vertical sleeve 5 is arranged at the center of the top of the concrete layer 102 through a mounting frame 4, the sleeve 5 is sleeved on the outer side of the vertical shaft 3, the joint of the vertical shaft 3 and the sleeve 5 is connected through the sealing bearing, an auger blade 6 is arranged on the outer side of the vertical shaft 3, the auger blade 6 is positioned on the inner side of the sleeve 5, a water inlet hole is formed in the bottom of the sleeve 5, the top of the vertical shaft 3 is fixedly connected with a vertical pipe 7, the lower part of the vertical pipe 7 is positioned in the sleeve 5 and is connected with the joint of the sleeve 5 through the sealing bearing, the lower part of the vertical pipe 7 is provided with a water outlet hole 8, the water outlet hole 9 is positioned in the sleeve 5, the upper end of the vertical pipe 7 is fixedly connected and communicated with a water spraying cylinder 10, the outer side of the water spraying cylinder 10 is annularly and uniformly provided with a plurality of water spraying holes 11, the outer side of each water spraying hole 11 is provided with a spray head 12, the outer side of the water pool 1 is provided with an annular planting belt 13, the annular planting belt 13 and the water pool 1 are combined into a bowl-shaped structure, wherein the water pool 1 is positioned at the central low-lying position of the bowl-shaped structure, the planting surface of the annular planting belt 13 is a slope inclining downwards towards the middle part of the water pool 1, a plurality of rows of plants 42 are annularly and uniformly planted on the planting slope of the annular planting belt 13, drainage grooves 14 with semicircular sections are arranged between every two rows of plants, an annular water storage cavity 15 is arranged inside the upper side wall of the annular retaining layer 101, a plurality of water dripping holes 16 are annularly and uniformly arranged on the side wall of the annular water storage cavity 15 and communicated with the water pool 1, a filter screen is arranged at the communication positions communicated with the lower ends of all the drainage grooves 14, the lower part of the annular surrounding and blocking layer 101 is provided with a water supply port and a water supply pipe 17 is arranged in the water supply port, one end of the water supply pipe 17 is communicated with the inside of the water pool 1, the other end of the water supply pipe 17 is connected and communicated with a water supply device, the inside of the annular surrounding and blocking layer 101 is provided with a cavity corresponding to the water supply pipe 17 and a vertical first pipe 18 is arranged in the cavity, the lower end of the first pipe 18 is communicated with the top of the water supply pipe 17, the first pipe 18 is internally provided with a baffle plate 19 in a contact and matching manner, the baffle plate 19 can move up and down along the first pipe 18, the baffle plate 19 can seal the water supply pipe 17, a proximity switch 20 is embedded at the position, close to the lower end, close to the side wall of the first pipe 18, the proximity switch 20 is connected with a driving assembly, one end, communicated with the water pool 1, the inside of the annular surrounding and blocking layer 101 is provided with a pore channel corresponding to the first pipe 18 and is provided with a second pipe 22, the lower end of the second pipe 22 is communicated with the upper end of the first pipe 18, the upper end of the second pipe 22 is communicated with the upper part of the water pool 1, a stay wire 23 is arranged in the second pipe 22, an annular floating block 24 is arranged on the inner wall of the annular enclosing and blocking layer 101 in a contact and matching mode, the lower end of the stay wire 23 is fixedly connected with the baffle 19, the upper end of the stay wire 23 penetrates through the second pipe 22 and then is fixedly connected with the annular floating block 24, the annular floating block 24 can block an upper end outlet of the second pipe 22, a plurality of grooves are uniformly formed in the annular inner wall of the annular enclosing and blocking layer 101, vertical guide rails 25 are installed in the grooves, second sliding blocks 26 are installed on the guide rails 25 in a matching mode, the second sliding blocks 26 are fixedly connected with the annular floating block 24, an overflow pipe 27 is arranged in a hole in the upper part of the annular enclosing and blocking layer 101, a second one-way valve is installed at the inner end of the overflow pipe 27, the other end of the overflow pipe 27 is communicated with a drainage pipe, and the overflow pipe 27 is located on the upper side of the annular floating block 24. When the rain water supply device is used in rainy days, rain water falls on the annular planting belt 13, when more rain water exists, one part of rain water seeps downwards, the other part of rain water flows into the annular water storage cavity 15 after entering the drainage groove and finally enters the water pool 1, because the annular planting belt 13 and the water pool 1 are combined into a bowl-shaped structure, the terrain of the annular planting belts on the two sides of the water pool 1 is higher, water in soil can seep into the water pool 1 to prevent the phenomenon that the soil internal stress is increased to cause easy collapse, the surface runoff is reduced, when the water level in the water pool 1 is higher, the water can be discharged to a city drainage channel through an overflow pipe to prevent the flooding phenomenon, the water in the drainage channel enters the water supply device after being treated for standby use, when in dry days, the water in the water pool is evaporated, the water level of the water in the water pool is reduced, the annular floating block 24 is lowered along with the water, and the annular floating block 24 pulls the baffle 19 upwards through the pull wire to enable the water supply device to be used, The water supply pipe and the water tank are communicated to realize water supply of the water tank, at the moment, the opening of the water supply pipe 17 is smaller, so that the water level can not be lowered too much at one time, but the baffle 19 moves upwards for a short distance, the proximity switch 20 is triggered, the proximity switch 20 sends a signal to the control terminal, the control terminal controls the driving assembly to drive the vertical shaft 3 to rotate, the vertical shaft 3 drives the auger blade 6 to rotate to suck water in the water tank into the sleeve 5 and then enter the vertical pipe 7, and finally the water is sprayed out from the inside to the outside of the water spraying cylinder 10, and the vertical pipe drives the water spraying cylinder 10 to rotate continuously when the water in the water tank is sprayed out, so that the annular planting belt is sprayed with annular uniform water, all plants can be supplemented with water, the water can simultaneously fall in the water tank to achieve the effect of increasing oxygen, the growth of aquatic plants in the water tank is facilitated, and excess water in the annular planting belt can seep into the water tank without causing waste of water resources, the water level of the water in the water pool 1 is rapidly reduced along with the spraying of the water in the water pool, the longer the upward movement stroke of the annular floating block drives the baffle plate 19, the larger the opening in the water supply pipe is, so that the water for the water pool can be rapidly supplemented until the water inflow is larger than the water outflow of the water pool, when the water level in the water pool 1 is raised to the original position, the baffle plate 19 is lowered under the action of gravity to close the water supply pipe 17 again, the proximity switch controls the driving assembly to be closed to stop water spraying, at the moment, part of water on the annular planting belt enters the annular water storage cavity through the drainage groove and then slowly drops into the water pool, the water level in the water pool is slowly supplemented as a prepared water source while the oxygenation effect of the water supply pool is achieved, and the damage to a motor caused by the fact that the water level in the water pool is lowered too frequently due to the fact that the weather is too hot; the device has a simple structure and ingenious design, the annular water storage cavity and the water pool can jointly play a role in water storage and drainage in rainy days, plants are distributed around the annular water pool through the arrangement of the annular planting belt in arid days, so that the water spraying cylinder for spraying water in an annular mode can play a role in watering all the plants, the annular planting belt 13 and the water pool 1 are combined into a bowl-shaped structure, excessive water of the annular planting belt 13 can seep into the water pool, the waste of surface runoff and water resources is reduced, the device can play a role in automatically detecting the drought degree of the weather, when the weather is dry and hot, the plants are watered more frequently due to the fact that the water level in the water pool evaporates quickly, and therefore the water source required by the normal growth of the plants is ensured.
Specifically, as shown in the figure, the vertical first sliding grooves 28 are symmetrically formed in the outer side wall of the vertical pipe 7 in a bilateral manner, the first sliding blocks 29 are installed in the first sliding grooves 28 in a matched manner, the outer side of the vertical pipe 7 is sleeved with a circular ring 30, the inner wall of the circular ring 30 is fixedly connected with the first sliding blocks 29, the outer side of the upper portion of the sleeve 5 is provided with a lantern ring 31, the inner side wall of the lantern ring 31 is in contact fit with the outer side wall of the sleeve 5, the circular ring 30 is fixedly connected with the lantern ring 31 through a connecting bracket, the outer side of the lantern ring 31 is annularly and uniformly connected with a plurality of blades 33, the bottom of the lantern ring 31 is fixedly connected with a first floating block 32, the first floating block 32 drives the blades 33 to be half immersed in water, the blades 33 can enable the water in the water tank 1 to diffuse outwards when rotating, the top of the annular floating block 24 is provided with an annular groove 34 with a U-shaped cross section, the annular floating block 24 is provided with a plurality of first through holes 35 and communicated with the annular groove 34, the downside of first through-hole 35 all with the surface of water parallel and level in the pond 1, several filtration pore 46 and the inside intercommunication in pond 1 have been seted up to the bottom of annular groove 34. When the vertical pipe 7 rotates to drive the water spraying barrel 10 to spray water, the ring 30 drives the lantern ring 31 and the blades 33 to rotate rapidly through the bracket, the blades 33 enable water at the center of the water pool 1 to continuously diffuse towards the side wall of the water pool 1 during rotation, floating garbage in the water pool moves towards the annular floating block 24 along the water until the floating garbage enters the annular groove 34 through the first through hole 35, the water in the annular groove 34 can mutually circulate with the water in the water pool, the garbage can be blocked by the filtering holes, and the annular floating block 24 and the first floating block 32 can descend along with the liquid level when the liquid level in the water pool descends along with continuous spraying of the water in the water pool, so that the garbage in the water pool is continuously pushed towards the annular groove 34, workers do not need to enter the water pool for fishing, the garbage in the annular groove 34 can be picked up only by the side of the water pool, and the difficulty in cleaning the water pool by the workers is reduced, and when the water in the water tank impacts the side wall of the annular floating block 24, a large amount of oxygen is generated to oxygenate the water tank, so that the aquatic animals and plants can grow favorably.
Specifically, as shown in the figure, the lower side surface of the first through hole 35 in the embodiment is hinged with a blocking block 36 which inclines towards the upper side of one side far away from the pool 1, and a torsional spring is sleeved on a hinged shaft of the blocking block 36, a limiting block 37 is fixedly mounted on the lower side surface of the first through hole 35, and the limiting block 37 prevents the blocking block 36 from rotating around the hinged shaft to the center of the pool. When garbage enters the annular groove 34 through the first through hole 35, the water flow and the garbage push the blocking block 36 to rotate around the hinge shaft of the blocking block, so that the garbage can smoothly enter the blocking block, and the torsion spring drives the blocking block 36 to reset after the garbage enters the blocking block, so that the effect of blocking the entering garbage from separating from the annular groove 34 is achieved.
Further, as shown in the figure, the annular retaining layer 101 of the present embodiment is a soil layer. The annular surrounding barrier layer 101 enables the water pool 1 to complete moisture exchange with soil on the lower side of the annular planting belt for the soil layer, water is discharged into the water pool of the low-lying zone in rainy days, and water in the water pool can permeate into the annular planting belt to keep moisture in hot weather.
Furthermore, as shown in fig. 3, the annular retaining layer 101 of the present embodiment is a concrete layer, a plurality of second through holes 38 are uniformly formed in the annular retaining layer 101, and a gravel filter 39 is disposed in the second through holes. The retaining layer 101 is enclosed to the annular makes the pond more firm for concrete layer, and the annular is enclosed retaining layer 101 annular simultaneously and has evenly seted up several second through-hole 38 and can guarantee the pond and the water interchange in annular planting area, prevents simultaneously that earth from getting into and causing the jam in the second through-hole 38.
Furthermore, as shown in the figure, the driving assembly of the present embodiment includes a motor 40, the motor 40 with an upward output shaft is fixedly installed at the bottom of the inner cavity 2, and the output shaft of the motor 40 is connected with the lower portion of the vertical shaft 3 through a gear transmission assembly 45. The vertical shaft 3 is driven to rotate through the matching of the motor and the gear transmission assembly, so that the rotating speed is adjustable, and the stable rotation of the vertical shaft 3 is facilitated.
Furthermore, as shown in the figure, the mounting frame 4 of the present embodiment is a cylinder body having a plurality of filtering holes formed on a side wall thereof, the bottom of the mounting frame 4 is fixedly connected to the concrete layer 102, and the top of the mounting frame 4 is fixedly connected to the lower end of the sleeve 5. Mounting bracket 4 sets up the barrel of several third through-hole for the lateral wall, and the barrel plays the guard action for sleeve 5 can not inhale the fish when absorbing water through the inlet opening, prevents simultaneously that earth from getting into and blockking up the sleeve.
Furthermore, as shown in the drawings, the outer ends of the water dripping holes 16 are fixedly connected and communicated with the water dripping pipes 41, and the outlet ends of the water dripping pipes 41 are located between the annular floating block 24 and the sleeve 5. The water dripping pipe 41 enables water in the annular water storage cavity to be directly dripped into the water tank, so that an oxygen increasing effect is achieved on the water tank.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.