CN114870485A - Fountain for view circulating water system in outdoor park - Google Patents

Abstract

The invention relates to the technical field of fountain systems, in particular to a circulating water system for fountain landscapes in outdoor parks, comprising a waterproof water pump, a fountain pipe, a water pumping pipe, a filter mesh cylinder and a return pipe, the fountain pipe and the waterproof water pump The water outlet of the water pump is connected with the water outlet of the water pump, one end of the water pump is fixedly connected with the water pump of the waterproof water pump, the other end of the water pump is connected with the filter mesh cylinder, one end of the backflow pipe is connected with the fountain pipe, and the backflow pipe is connected with the fountain pipe. The other end is provided with a docking structure with elastic expansion and contraction function; the piston structure provided in the present invention can pump water through a normally closed suction pipe when the filter mesh cylinder is blocked, and at the same time connect the blocking valve structure, so that the liquid in the fountain pipe is shunted to the In the backflow pipe, it is sprayed from the side wall spout and the top spout to dredge the filter cylinder. After the filter cylinder is dredged, it can be automatically reset to the initial fountain state to realize the self-cleaning and maintenance of the filter cylinder.

Description

A circulating water system for fountain landscape in outdoor park

technical field

The invention relates to the technical field of fountain systems, in particular to a circulating water system for fountain landscapes in outdoor parks.

Background technique

The circulating water system of the fountain landscape is composed of a water pump and a fountain pipe. The water from the pool is extracted by the pump and sent to the fountain pipe at high pressure to form a fountain, and then it is recycled and falls back into the pool. It is used in the circulating water system of the outdoor park lake , Due to the large amount of sludge and sundries in the lake water in the outdoor park, in actual use, it is easy to cause the filter cylinder to be blocked by the sludge, thereby reducing the amount of water sprayed by the fountain.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a circulating water system for a fountain landscape of an outdoor park, so as to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a circulating water system for a fountain landscape in an outdoor park, comprising a waterproof water pump, a fountain pipe, a water pumping pipe, a filter mesh cylinder and a backflow pipe, the fountain pipe and the waterproof The water outlet of the water pump is fixedly connected, one end of the water pumping pipe is fixedly connected with the water pumping port of the waterproof water pump, the other end of the water pumping pipe is connected with the filter mesh cylinder through screw fit and sealing, and one end of the backflow pipe is fixed to the fountain pipe. The other end of the return pipe is provided with a docking structure with elastic expansion and contraction function. The valve blocking structure with liquid function, the outside of the water suction pipe is provided with a piston structure with a liquid feeding function, the piston structure can drive the valve blocking structure to switch and change, and the inside of the filter cylinder is provided with a docking coil structure, so The docking coil structure can be sealed and matched with the docking structure, and when high-pressure liquid is introduced into the docking coil structure, it can be sprayed and rotated inside the filter mesh cylinder to dredge and clean the filter mesh cylinder.

The piston structure includes a pressure piston tube, an inner wall rib, an upper support spring, a pressure sealing plug, an anti-rotation frame, an anti-rotation square hole, a connecting square shaft, a normally closed suction pipe, a liquid inlet and a protective screen fence. The piston tube is in fixed communication with the water pumping tube, the pressure piston tube is in the shape of a circular tube, the inner wall protruding edge is fixedly installed on the inner wall surface position of the pressure piston tube, the inner wall protruding edge is annular, and is connected with the pressure piston tube. It is made by integral molding, the upper support spring is arranged inside the pressure piston tube, and is located above the inner wall rib, the pressure sealing plug is movably arranged inside the pressure piston tube, and the outer surface of the pressure sealing plug is connected to the inner surface of the pressure piston tube. The inner wall surface of the pressure piston tube is in sealing contact, the upper support spring is located between the pressure closing plug and the inner wall ridge, the anti-rotation frame is fixedly installed on the inner wall surface of the pressure piston tube near the upper position, the center of the anti-rotation frame An anti-rotation square hole is provided through the position. The anti-rotation square hole is in the shape of a square hole. The connecting square shaft is inserted through the anti-rotation square hole. After the rotating square hole is matched, the connecting square shaft can only be telescopically moved, but cannot be rotated, and the lower end of the connecting square shaft is fixedly installed with the pressure sealing plug;

One end of the normally closed suction pipe is fixedly connected with the suction pipe, the above-mentioned communication position with the suction pipe is located between the waterproof water pump and the pressure piston pipe, and the other end of the normally closed suction pipe is fixedly connected with the pressure piston pipe. , the pressure sealing plug blocks and seals the communication port between the normally closed suction pipe and the pressure piston pipe, the outside of the pressure piston pipe is connected with a liquid inlet, and the inside of the liquid inlet is fixedly installed with a protective screen, so The protective screen fence can block foreign objects.

The valve blocking structure includes a normally closed valve pipe, a sealing plug core column and a liquid-passing micro-hole, the normally closed valve pipe is fixedly connected with the backflow pipe, and the normally closed valve pipe is cylindrical, the upper part is closed, and the lower part is closed. opening, the sealing plug stem is telescopically arranged inside the normally closed valve tube, the outer surface of the sealing plug stem is in sealing contact with the inner wall surface of the normally closed valve tube, and the liquid-passing micropores are opened through the sealing plug Inside the stem, when the backflow pipe is interrupted and closed by the sealing plug stem, a small amount of communication can be maintained through the set liquid-passing micro-holes, so that a small amount of liquid can flow inside the backflow pipe. The surface is fixedly installed with the upper end of the connecting square shaft.

The docking structure includes a telescopic cavity column, a cavity column support plate, a limit convex ring, a telescopic inner tube, a limit sealing ring, a sealing ring groove, an annular rubber ring, a sealing pressure ring, an ejection spring and a sealing film. The cavity column is in the shape of a circular tube and is fixedly installed inside the suction pipe. The outer surface of the telescopic cavity column is fixedly installed with a cavity column support plate, and the telescopic cavity column is fixedly installed on the inner wall surface of the suction pipe through the cavity column support plate. The limiting convex ring is fixedly installed on the inner wall surface of the telescopic cavity column, the limiting convex ring is annular, the telescopic inner tube is inserted through the ring center of the limiting convex ring, and the outer A limit seal ring is fixedly installed on the surface position, the outer surface of the limit seal ring is provided with a seal ring groove, the seal ring groove is an annular groove, and the annular rubber ring is sleeved and installed inside the seal ring groove, the annular The rubber ring is in sealing contact with the inner wall surface of the telescopic cavity column, the outer surface of the telescopic inner tube is fixedly installed with a sealing pressure ring, and the outer part of the telescopic inner tube is sleeved between the sealing pressure ring and the limiting convex ring An ejection spring is installed, and a sealing film is fixedly installed on a surface of the sealing pressure ring away from the ejection spring.

The docking coil structure includes a docking pipe, a docking support plate, a rotating outer pipe, an annular wall groove, a sealing stop ring, an inner wall blade, a side wall spout and a top spout, and the docking pipe is fixedly installed inside the filter mesh cylinder, The docking support plate is fixedly installed on the outer surface of the docking pipe, the docking pipe is fixedly installed with the filter mesh cylinder through the docking support plate, the rotating outer pipe is rotatably sleeved on the outside of the docking pipe, and the docking pipe is The outer wall surface and the inner wall surface of the rotating outer tube are respectively provided with annular wall grooves, and the sealing stop ring is located in the above-mentioned annular wall groove, and is stuck between the butting tube and the rotating outer tube, so that the butting tube and the rotating outer tube can only Relatively rotating, unable to move axially, and at the same time, it has a sealing effect to avoid water leakage between the butt tube and the rotating outer tube;

The inner wall surface of the rotating outer tube is fixedly installed with inner wall vanes, and the inner wall vanes are evenly distributed in a spiral circular array, which can drive the rotating outer tube to rotate when a high-pressure water flow passes through the rotating outer tube. The outer wall surface of the rotating outer tube is fixed and communicated with a side wall spout, and the end surface of the rotating outer tube is fixed and communicated with a top spout. The two sides of the top nozzle are inclined to expand to increase the spray fan area.

A mounting plate is fixedly installed on the lower surface of the waterproof water pump, a central column is fixedly installed inside the fountain pipe, a connecting column plate is fixedly installed on the outer surface of the central column, and the connecting column plate and the fountain pipe are fixedly installed. The inner wall surface is fixedly installed, the upper end of the fountain pipe is provided with a pressure flow bucket cap, the pressure flow bucket cap is bucket-shaped, the central column is inserted through the pressure flow bucket cap, and the upper end surface of the central column is fixedly installed with a A baffle plate, the outside of the central column is located between the baffle plate and the pressure flow bucket cap, and a compression spring is sleeved and installed, the outer surface and the end surface of the filter mesh cylinder are respectively provided with filter screen holes, Both the spout and the top spout correspond to the filter mesh.

Compared with the prior art, the beneficial effects of the present invention are:

The piston structure provided in the present invention can pump water through the normally closed suction pipe when the filter mesh cylinder is blocked, and at the same time, the blocking valve structure is connected, so that the liquid in the fountain pipe is shunted into the reflux pipe, and the liquid from the side wall spout and the top spout can be shunted. Spray out to dredge the filter cylinder. After the filter cylinder is dredged, it can automatically reset to the initial fountain state, realize the self-cleaning and maintenance of the filter cylinder, and can adapt to the harsh outdoor park environment;

At the same time, the inner wall blades can drive the rotating outer pipe to rotate when the high-pressure water flow passes through the rotating outer pipe, and at the same time make the side wall nozzle and the top nozzle rotate, so as to increase the scouring wave force of the side wall nozzle and the top nozzle during jet scouring, so that the The cleaning of the filter cartridge is cleaner;

The provided butt-coil structure and the docking structure can be sealed and matched, so that the filter mesh cylinder and the internal butt-coil structure and the docking structure can be disassembled and separated, which facilitates the replacement and maintenance of the filter mesh cylinder;

When the valve blocking structure is closed, a small amount of liquid can be kept flowing through the backflow pipe, so that the inside of the rotating outer pipe is in a positive pressure state under normal conditions, avoiding long-term sidewall spouts and top spouts. Blocked by sludge when not activated.

Description of drawings

Fig. 1 is the schematic diagram of the overall structure of the present invention;

Fig. 2 is the schematic diagram of the half-section structure of the present invention;

Fig. 3 is the enlarged view of A place in Fig. 2;

Fig. 4 is a half-section axonometric schematic diagram of the present invention;

Fig. 5 is an enlarged view at B in Fig. 4;

6 is a schematic front view of the present invention;

Figure 7 is a half-section front view of the present invention;

Fig. 8 is an enlarged view at C in Fig. 7 of the present invention;

Fig. 9 is the enlarged view of D place in Fig. 7 of the present invention;

FIG. 10 is a schematic top view of the present invention.

In the figure: 1. Waterproof water pump; 2. Fountain pipe; 3. Water pumping pipe; 4. Filter mesh cylinder; 5. Backflow pipe; 301. Pressure piston pipe; Pressure sealing plug; 305, anti-rotation rack; 306, anti-rotation square hole; 307, connecting square shaft; 308, normally closed suction pipe; 309, liquid inlet; 310, protective screen fence; 501, normally closed valve pipe; 502 , sealing plug stem; 503, liquid-passing micro-hole; 504, telescopic cavity column; 505, cavity column support plate; 506, limit convex ring; 507, telescopic inner tube; 508, limit seal ring; 509, seal ring groove; 510, annular rubber ring; 511, sealing pressure ring; 512, ejection spring; 513, sealing film; 401, butt pipe; 402, butt support plate; 403, rotating outer pipe; 404, annular wall groove; 405, Sealing limit ring; 406, inner wall blade; 407, side wall spout; 408, top spout; 101, mounting plate; 201, central column; 202, connecting column plate; 203, pressure flow bucket cap; 204, baffle plate; 205 , compression spring; 409, filter mesh.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of 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.

Please refer to FIGS. 1 to 10 , the present invention provides a technical solution: a circulating water system for a fountain landscape in an outdoor park, comprising a waterproof water pump 1 , a fountain pipe 2 , a water pumping pipe 3 , a filter mesh cylinder 4 and a return pipe 5 , the fountain pipe 2 is fixedly connected with the water outlet of the waterproof water pump 1, the waterproof water pump 1 is a common water pump under the prior art, and has waterproof capability, one end of the water pumping pipe 3 is fixedly connected with the water outlet of the waterproof water pump 1, and the other end of the water pumping pipe 3 It is in a sealed connection with the filter mesh cylinder 4 through screw fitting, one end of the backflow pipe 5 is fixedly connected with the fountain pipe 2, and the other end of the backflow pipe 5 is provided with a docking structure with elastic expansion and contraction function, and the docking structure is located inside the water pumping pipe 3, At the end away from the position of the waterproof water pump 1, the inside of the backflow pipe 5 is provided with a valve blocking structure with the function of micro liquid flow, and the outside of the water pumping pipe 3 is provided with a piston structure with a liquid feeding function, and the piston structure can drive the valve blocking structure switch. Change, the inside of the filter mesh cylinder 4 is provided with a butt coil structure, the butt coil structure can be sealed with the docking structure, and when high-pressure liquid is introduced into the interior of the butt coil structure, it can be sprayed and rotated inside the filter mesh cylinder 4, Clean the filter cartridge 4.

The piston structure includes a pressure piston tube 301, an inner wall ridge 302, an upper support spring 303, a pressure sealing plug 304, an anti-rotation frame 305, an anti-rotation square hole 306, a connecting square shaft 307, a normally closed suction pipe 308, a liquid inlet 309 and The protective screen fence 310, the pressure piston pipe 301 is fixedly communicated with the suction pipe 3, the pressure piston pipe 301 is in the shape of a circular tube, the inner wall ridge 302 is fixedly installed on the inner wall surface position of the pressure piston pipe 301, the inner wall ridge 302 is in the shape of a circular ring, and It is integrally formed and cast with the pressure piston tube 301, the upper support spring 303 is arranged inside the pressure piston tube 301, and is located above the inner wall rib 302, the pressure sealing plug 304 is movably arranged inside the pressure piston tube 301, and the pressure sealing plug The outer surface of 304 is in sealing contact with the inner wall surface of the pressure piston tube 301, the upper support spring 303 is located between the pressure sealing plug 304 and the inner wall ridge 302, the anti-rotation frame 305 is fixedly installed on the inner wall surface of the pressure piston tube 301 near the upper position, An anti-rotation square hole 306 is formed through the center of the anti-rotation frame 305. The anti-rotation square hole 306 is in the shape of a square hole. The connecting square shaft 307 is inserted through the anti-rotation square hole 306. After the connection square shaft 307 is matched with the anti-rotation square hole 306, the connection square shaft 307 can only be telescopically moved, but cannot be rotated, and the lower end of the connection square shaft 307 is fixedly installed with the pressure sealing plug 304;

One end of the normally closed suction pipe 308 is in fixed communication with the suction pipe 3, the above-mentioned communication position with the suction pipe 3 is located between the waterproof water pump 1 and the pressure piston pipe 301, and the other end of the normally closed suction pipe 308 is fixedly connected with the pressure piston pipe 301, In the natural state, the pressure sealing plug 304 blocks and seals the communication port between the normally closed suction pipe 308 and the pressure piston pipe 301 , the pressure piston pipe 301 is connected to the outside with a liquid inlet 309 , and the inside of the liquid inlet 309 is fixedly installed with a liquid inlet 309 . The protective screen fence 310 can block foreign objects.

The valve blocking structure includes a normally closed valve pipe 501, a sealing plug stem 502 and a liquid passage micro-hole 503. The normally closed valve pipe 501 is in fixed communication with the backflow pipe 5, and the normally closed valve pipe 501 is cylindrical, the upper part is closed, and the lower part is open, The sealing plug core column 502 is telescopically arranged inside the normally closed valve tube 501, the outer surface of the sealing plug core column 502 is in sealing contact with the inner wall surface of the normally closed valve tube 501, and the liquid-passing micropore 503 runs through the sealing plug core column 502. Inside, when the sealing plug stem 502 interrupts and closes the backflow pipe 5, a small amount of communication can be maintained through the set liquid-passing micro-holes 503, so that a small amount of liquid can be circulated inside the backflow pipe 5, and the sealing plug stem 502 The lower surface is fixedly mounted on the upper end of the connecting square shaft 307 .

The docking structure includes a telescopic cavity column 504, a cavity column support plate 505, a limit convex ring 506, a telescopic inner tube 507, a limit seal ring 508, a seal ring groove 509, an annular rubber ring 510, a seal pressure ring 511, and an ejector spring 512 And the sealing film 513, the telescopic cavity column 504 is in the shape of a circular tube and is fixedly installed inside the suction pipe 3, the outer surface of the telescopic cavity column 504 is fixedly installed with a cavity column support plate 505, and the telescopic cavity column 504 is connected with the cavity column support plate 505 through the cavity column support plate 505. The inner wall surface of the water pumping pipe 3 is fixedly installed, the limiting convex ring 506 is fixedly installed on the inner wall surface of the telescopic cavity column 504 , the limiting convex ring 506 is annular, and the telescopic inner tube 507 is inserted through the center of the limiting convex ring 506 , the outer surface of the telescopic inner tube 507 is fixedly installed with a limit seal ring 508, the outer surface of the limit seal ring 508 is provided with a seal ring groove 509, the seal ring groove 509 is an annular groove, and the annular rubber ring 510 is sleeved and installed on the seal ring Inside the groove 509, the annular rubber ring 510 is in sealing contact with the inner wall surface of the telescopic cavity column 504, the outer surface of the telescopic inner tube 507 is fixedly installed with a sealing pressure ring 511, and the outside of the telescopic inner tube 507 is located between the sealing pressure ring 511 and the limit An ejector spring 512 is sleeved and installed between the convex rings 506 , and a sealing film 513 is fixedly installed on a surface of the sealing pressure ring 511 away from the ejection spring 512 .

The docking coil structure includes a docking tube 401, a docking support plate 402, a rotating outer tube 403, an annular wall groove 404, a sealing limit ring 405, an inner wall blade 406, a side wall spout 407 and a top spout 408. The docking tube 401 is fixedly installed on the filter Inside the mesh cylinder 4, the docking support plate 402 is fixedly installed with the outer surface of the docking pipe 401, the docking pipe 401 is fixedly installed with the filter mesh cylinder 4 through the docking support plate 402, and the rotating outer pipe 403 is rotated and sleeved on the outside of the docking pipe 401, The outer wall surface of the butt tube 401 and the inner wall surface of the rotating outer tube 403 are respectively provided with annular wall grooves 404, and the sealing limit ring 405 is located in the above-mentioned annular wall groove 404, and is stuck between the butt tube 401 and the rotating outer tube 403, so that The butt tube 401 and the rotating outer tube 403 can only rotate relative to each other, but cannot move axially, and at the same time have a sealing effect to avoid water leakage between the butt tube 401 and the rotating outer tube 403;

The inner wall surface of the rotating outer tube 403 is fixedly installed with inner wall vanes 406, and the inner wall vanes 406 are evenly distributed in a spiral circular array, which can drive the rotating outer tube 403 to rotate when the high-pressure water flow passes through the rotating outer tube 403, and the rotating outer tube 403 The outer wall surface is fixedly communicated with a side wall spout 407, the end surface of the rotating outer tube 403 is fixed and communicated with a top spout 408, and the side wall spout 407 and the top spout 408 are both flat, so that the liquid can be ejected in a flat shape, wherein The two sides of the top nozzle 408 are expanded obliquely to increase the area of the spray fan.

A mounting plate 101 is fixedly installed on the lower surface of the waterproof water pump 1, a central column 201 is fixedly installed inside the fountain pipe 2, a connecting column plate 202 is fixedly installed on the outer surface of the central column 201, and the connecting column plate 202 and the inner wall surface of the fountain pipe 2 are fixedly installed. Fixed installation, the upper end of the fountain pipe 2 is provided with a pressure flow bucket cap 203, the pressure flow bucket cap 203 is bucket-shaped, the central column 201 is inserted through the pressure flow bucket cap 203, and the upper end surface of the central column 201 is fixedly installed with a baffle plate 204, The outside of the central column 201 is located between the baffle plate 204 and the pressure funnel cap 203, and a compression spring 205 is installed. The top spouts 408 all correspond to the filter meshes 409 .

When the present invention is in use, the circulating water system is fixedly installed in the outdoor park lake through the mounting plate 101. During normal operation, the waterproof water pump 1 runs through the suction pipe 3 and the filter mesh cylinder 4 to pump water, and then applies high pressure to the water flow from the fountain. The pipe 2 is ejected, thereby forming a fountain;

When the filter screen hole 409 of the filter mesh cylinder 4 is blocked by sludge or other debris, the filter mesh cylinder 4 cannot pass the water flow, and negative pressure occurs inside the water pump 3 under the extraction of the waterproof water pump 1, and the negative pressure is used to attract the pressure to seal. When the plug 304 moves down, when the pressure sealing plug 304 moves down to the lower part of the communication port between the normally closed suction pipe 308 and the pressure piston pipe 301, the water flow in the lake water will enter the normal state through the liquid inlet 309 and the top of the pressure piston pipe 301. Close the inside of the pumping pipe 308, and then enter the inside of the pumping pipe 3, so that the waterproof water pump 1 can complete the pumping. When the pressure sealing plug 304 moves down, the connecting square shaft 307 drives the sealing plug stem 502 to move down, so that the normally closed valve pipe 501 is internally connected, and the high-pressure water flow in the fountain pipe 2 is divided into the return pipe 5, enters the rotating outer pipe 403 through the normally closed valve pipe 501 and the telescopic inner pipe 507, and is ejected from the side wall spout 407 and the top spout 408 , scour and clean the filter screen holes 409 of the filter mesh cylinder 4 to clear the blockage. When the high-pressure water flow in the rotating outer pipe 403 passes through the inner wall blades 406, it can push the inner wall blades 406, so that the rotating outer pipe 403 rotates at a high speed, thereby The sidewall spout 407 and the top spout 408 are rotated, and the water flow ejected from the sidewall spout 407 and the top spout 408 has a rotating impact force, which can further increase the cleaning effect and avoid omission;

The filter cartridge 4 can be disassembled and installed with the suction pipe 3 by rotating. As shown in the structure in FIG. 3 , the telescopic inner pipe 507 will be separated from the docking pipe 401 during disassembly, and during installation, the telescopic inner pipe 507 will be inserted into To the inside of the butt tube 401, at this time, the sealing film 513 is close to the end surface of the butt tube 401 under the elastic force of the ejection spring 512, so that the telescopic inner tube 507 is sealed with the butt tube 401. distribution and installation;

In normal use, the sealing plug stem 502 extends into the normally closed valve pipe 501. As shown in FIG. 2, the normally closed valve pipe 501 is closed. Connected with the fountain pipe 2, the part of the pressure water flow in the fountain pipe 2 that is diverted to the backflow pipe 5 will pass through the liquid-through micro-hole 503, enter the telescopic inner pipe 507, and reach the rotating outer pipe 403 so that the rotating outer pipe 403 In daily use, under a positive pressure state, the sidewall spout 407 and the top spout 408 maintain a small amount of drainage, so that the sidewall spout 407 and the top spout 408 can avoid blockage caused by the entry of foreign objects.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A circulating water system for a fountain landscape in an outdoor park, comprising a waterproof water pump (1), a fountain pipe (2), a water pumping pipe (3), a filter mesh cylinder (4) and a return pipe (5), the fountain The pipe (2) is communicated with the water outlet of the waterproof water pump (1), one end of the water suction pipe (3) is fixedly connected with the water outlet of the waterproof water pump (1), and the other end of the water suction pipe (3) is connected to the filter The mesh cylinder (4) is connected, and it is characterized in that: one end of the backflow pipe (5) is connected with the fountain pipe (2), and the other end of the backflow pipe (5) is provided with a docking structure with an elastic expansion and contraction function, The docking structure is located inside the water pumping pipe (3), away from the end where the waterproof water pump (1) is located. The outside of (3) is provided with a piston structure with a liquid feeding function, and the piston structure can drive the valve blocking structure to switch and change. Capable of sealingly mating with the docking structure. 2. The circulating water system for a fountain landscape of an outdoor park according to claim 1, wherein the piston structure comprises a pressure piston tube (301), an inner wall ridge (302), an upper support spring (303) , pressure sealing plug (304), anti-rotation rack (305), anti-rotation square hole (306), connecting square shaft (307), normally closed suction pipe (308), liquid inlet (309) and protective screen fence (310) ). 3. The circulating water system for a fountain landscape of an outdoor park according to claim 2, characterized in that: the pressure piston pipe (301) is in fixed communication with the water pumping pipe (3), and the inner wall ridges ( 302) is fixedly installed on the inner wall surface of the pressure piston tube (301), the upper support spring (303) is arranged inside the pressure piston tube (301), and is located above the inner wall rib (302). 4. The circulating water system for a fountain landscape of an outdoor park according to claim 2, characterized in that: the pressure sealing plug (304) is movably arranged inside the pressure piston tube (301), and the upper support spring (303) is located between the pressure sealing plug (304) and the inner wall rib (302), the anti-rotation rack (305) is fixedly installed on the inner wall surface of the pressure piston tube (301) near the upper position, and the anti-rotation rack ( 305) is provided with an anti-rotation square hole (306) through the central position, the connecting square shaft (307) is inserted through the anti-rotation square hole (306), and the lower end of the connecting square shaft (307) is connected to the pressure sealing plug (304). )Fixed installation. 5. The circulating water system for a fountain landscape of an outdoor park according to claim 2, characterized in that: one end of the normally closed suction pipe (308) is communicated with the suction pipe (3), and the normally closed suction pipe The other end of the (308) is in fixed communication with the pressure piston pipe (301), and the pressure piston pipe (301) has a liquid inlet (309) connected to the outside thereof, and the inside of the liquid inlet (309) is fixedly installed with a protection Screen bar (310). 6. The circulating water system for a fountain landscape of an outdoor park according to claim 1, wherein the valve blocking structure comprises a normally closed valve pipe (501), a sealing plug stem (502) and a liquid-passing micro-tube. a hole (503), the normally closed valve pipe (501) communicates with the backflow pipe (5), the sealing plug stem (502) is movably arranged inside the normally closed valve pipe (501), the The liquid micro-hole (503) penetrates through the inside of the sealing plug stem (502), and the lower surface of the sealing plug stem (502) is fixedly installed with the upper end of the connecting square shaft (307). 7. The circulating water system for a fountain landscape in an outdoor park according to claim 1, wherein the docking structure comprises a telescopic cavity column (504), a cavity column support plate (505), a limit convex ring ( 506), telescopic inner tube (507), limit sealing ring (508), sealing ring groove (509), annular rubber ring (510), sealing pressure ring (511), ejector spring (512) and sealing film (513) ). 8. The circulating water system for a fountain landscape of an outdoor park according to claim 7, wherein the telescopic cavity column (504) passes through the cavity column support plate (505) and the inner wall surface of the water pumping pipe (3). Fixed installation, the limiting convex ring (506) is fixedly installed on the inner wall surface of the telescopic cavity column (504), the telescopic inner tube (507) is inserted through the limiting convex ring (506), the telescopic inner tube ( A limit seal ring (508) is fixedly installed on the outer surface of 507), a seal ring groove (509) is formed on the outer surface of the limit seal ring (508), and the annular rubber ring (510) is sleeved and installed on the seal. Inside the annular groove (509), the annular rubber ring (510) is in sealing contact with the inner wall surface of the telescopic cavity column (504), and a sealing pressure ring ( 511), an ejector spring (512) is sleeved and installed on the outside of the telescopic inner tube (507), and a sealing film (513) is fixedly installed on the surface of the sealing pressure ring (511). 9 . The circulating water system for a fountain landscape of an outdoor park according to claim 1 , characterized in that: the docking coil structure comprises a docking pipe ( 401 ), a docking support plate ( 402 ), a rotating outer pipe ( 403 ) ), annular wall groove (404), seal stop ring (405), inner wall vane (406), sidewall spout (407) and top spout (408). 10. The circulating water system for a fountain landscape of an outdoor park according to claim 9, characterized in that: the butt pipe (401) is fixedly installed with the filter mesh cylinder (4) through the butt support plate (402), so that the The rotating outer pipe (403) is rotatably sleeved on the outside of the butt pipe (401), and the outer wall surface of the butt pipe (401) and the inner wall surface of the rotating outer pipe (403) are respectively provided with annular wall grooves (404), The sealing stop ring (405) is located in the above-mentioned annular wall groove (404), the inner wall surface of the rotating outer tube (403) is fixedly installed with inner wall vanes (406), and the inner wall vanes (406) have a helical circumference The outer wall surface of the rotating outer tube (403) is fixedly communicated with a side wall spout (407), and the end surface of the rotating outer tube (403) is fixedly communicated with a top spout (408).

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