CN214743507U - Flexible automatic drainage device - Google Patents

Abstract

A flexible automatic drainage device is characterized in that an inner pipe sleeve is arranged inside an outer pipe, a piston is arranged inside the inner pipe, the piston moves upwards to open a water inlet channel, a drainage channel is closed, a water inlet hole and a through hole at the lower end of the inner pipe sleeve form the water inlet channel, the piston moves downwards to open the drainage channel, the water inlet hole and the drainage hole form the automatic drainage of the drainage channel, and the piston can be pushed to automatically open the water inlet channel and close the drainage channel by fine water inflow; when not having the rivers to enter, drainage channel opens automatically, piston motion sensitivity is high, the leakproofness of wash port is strong when intaking, wash port water leakage phenomenon when having avoided intaking, realize the water of storing inside the honeycomb duct of automatic discharge overhead shower, it is more convenient to use, honeycomb duct the inside can store the water when having solved the used gondola water faucet, can not the automatic discharge, when using the gondola water faucet to bathe winter, the user need not avoid cold water earlier, just go out the general knowledge that hot water could have bathed after waiting for the cold water of storing in the honeycomb duct to spray.

Description

Flexible automatic drainage device

Technical Field

The utility model relates to a bathroom product and bathroom accessory product field, specific nimble automatic drainage device that says so.

Background

Present gondola water faucet for bathroom is most all that two gondola water faucets use of mutually supporting, and one is fixed at the bathroom wall top gondola water faucet through the honeycomb duct, and top gondola water faucet sprays down from the top, and it is big to spray the area, need not to hand, and convenient to use, another is hose connection's handheld gondola water faucet, and the user is holding and is spraying. The shower head usually controls water inflow by a cold and hot water valve, and then controls to open the top shower head to spray or hold the shower head to spray by a switching valve, and when the top shower head is used up, water can be stored in the section of flow guide pipeline from the switching valve to the top shower head and cannot be automatically discharged, and the water stored in the section of flow guide pipeline can be discharged when the shower head is used next time. Especially when the shower head is used for bathing in winter, cold water is sprayed out of the shower head after the cold water and hot water valve is adjusted to be filled with hot water, a user needs to avoid the cold water, and the shower head sprays hot water with proper temperature after the cold water stored in the flow guide pipe is sprayed out. In daily life, people have a bath in winter, the common knowledge is achieved by firstly opening the hot water valve to avoid cold water and waiting for the hot water to take a bath again, the space of a bathroom is limited, and the cold water sprayed out often splashes to the body, so that great inconvenience is caused.

Disclosure of Invention

In order to solve the problem that water can be stored in the guide pipe when the shower head is used, the water cannot be automatically discharged, particularly, when the shower head is used for bathing in winter, cold water can be stored in the section of the guide pipe from the switching valve to the shower head, a user needs to avoid the cold water, and the user can take a bath after the cold water stored in the guide pipe is sprayed. The utility model provides a nimble automatic drainage device, inhalant canal and drainage channel are under the nimble control of piston, inhalant canal can both be opened automatically to slight inflow, and close drainage channel, when not having the rivers to enter, inhalant canal is closed, drainage channel opens, sensitivity is high, the leakproofness of wash port is strong when intaking, the wash port phenomenon such as leaking when having avoided intaking, realize the water that automatic discharge overhead flower spills the honeycomb duct the inside and store, high durability and convenient use, the people of having overcome pioneering and having bathe earlier to start the hot water valve winter for many years, avoid cold water, wait for the general knowledge that hot water bathe again, more convenience is provided for people's life.

The utility model provides a technical scheme that technical problem adopted is: the flexible automatic drainage device comprises an outer pipe, an inner pipe sleeve and a piston, wherein the inner pipe sleeve is arranged inside the outer pipe, the piston is arranged inside the inner pipe sleeve, a water inlet channel is opened when the piston moves upwards, a drainage channel is closed, a water inlet hole and the lower end of the inner pipe sleeve form the water inlet channel, water flow enters the outer pipe from a through hole at the lower end of the inner pipe sleeve, the piston moves downwards, the drainage channel is opened, a drainage channel is formed by the water inlet hole and the drainage hole, and water stored inside the outer pipe flows out from the drainage channel to the drainage hole.

The inner pipe sleeve comprises a water inlet hole and a water drain hole. Preferably, the drain hole of the inner pipe sleeve is arranged at the upper end of the water inlet holes, which are symmetrical to each other, the position of the water inlet hole is lower than that of the drain hole, and the outer end of the water inlet hole is provided with a water outlet groove.

Preferably, when the inner pipe sleeve is installed in the outer pipe, the water outlet hole of the inner pipe sleeve is communicated with the water outlet hole, water flowing into the water outlet hole flows out from the water outlet hole, the lower end of the inner pipe sleeve is fixed with the inner side of the outer pipe, the inner pipe sleeve is connected with the outer pipe into a whole, the outer wall of the inner pipe sleeve is in sealing fit with the inner wall of the outer pipe, a water outlet channel is formed between the water outlet groove of the inner pipe sleeve and the inner wall of the outer pipe, and water flowing out from the water inlet hole flows into the channel and then flows into the flow guide pipe.

Preferably, the lower end of the inner pipe sleeve is provided with a water inlet cover, the water inlet cover is provided with a water inlet through hole, the water inlet cover positions the spring and the piston in the through hole of the inner pipe sleeve to move, and the piston is positioned at the lower end of the through hole of the inner pipe sleeve under the elastic action of the spring to block the water inlet through hole of the water inlet cover.

Preferably, the inner through hole of the inner pipe sleeve is a smooth surface, the piston is in sealing slidable contact with the inner side of the inner pipe sleeve, and the piston can slide upwards or downwards in the inner pipe sleeve.

The through hole of the inner pipe sleeve is provided with a drainage groove; preferably, the drainage groove is arranged at the lower end of the water outlet hole.

When the piston moves upwards to compress the spring, and the lower end of the piston is higher than the lower end of the water inlet hole, a water inlet channel is formed between the water inlet through hole of the water inlet cover and the water inlet hole, the drainage channel is closed, and water flows into the through hole at the bottom of the inner pipe sleeve from the water inlet through hole of the water inlet cover and then flows out from the water outlet hole. The elastic potential energy of the spring is released to push the piston to move downwards, a drainage channel is formed between the water inlet hole and the drainage hole, and water flow enters from the water inlet hole and then is drained from the drainage hole due to the gravity.

Without limitation, a water discharge nozzle can be installed at the water outlet of the outer pipe, a hose is inserted into the water discharge nozzle to guide the water flowing out of the water outlet to the ground or a container for collection and use, and the discharged water is prevented from splashing to a user.

The water outlet of the outer pipe can be provided with a water discharging nozzle with a valve, the upper end of the through hole of the inner pipe sleeve is provided with an opening, a spring and a piston are arranged in the through hole, and the water inlet cover is fixedly connected with the lower end of the inner pipe sleeve to position the spring and the piston in the through hole of the inner pipe sleeve to move. When the drainage nozzle is closed and drainage is not performed, water flows into the water inlet through hole of the water inlet cover to push the piston to move upwards, and the water inlet channel can be automatically opened.

The inner sleeve through hole is also internally provided with a piston which resets by utilizing the self gravity. Preferably, the upper part of the piston is provided with a sealing gasket, the water inlet cover is fixedly connected with the lower end of the inner pipe sleeve to position the piston in the through hole of the inner pipe sleeve to move, the piston is kept to move downwards in the through hole of the inner pipe sleeve under the action of gravity and is attached to the water inlet through hole of the water inlet cover, water flow enters the water inlet through hole of the water inlet cover to impact the piston to move upwards, the water inlet channel is opened, and the drainage channel is closed; when the water flow stops impacting the piston, the piston moves downwards to reset due to the gravity of the piston, and the drainage channel is opened.

Preferably, the upper end of outer tube can with honeycomb duct threaded connection, the lower extreme of outer tube can with diverter valve threaded connection, the lower extreme and the cold and hot water valve threaded connection of diverter valve, the diverter valve still including can be connected with the hose, the hose is connected with handheld gondola water faucet.

When the cold and hot water valve is opened, the switching valve is switched to the shower head on the top of the guide pipe for use, water flows into the impact piston from the through hole of the water inlet cover and pushes the piston to move upwards, the water inlet channel is opened, the water drainage channel is closed, and water flows into the guide pipe from bottom to top from the water inlet hole and then is sprayed out from the fixed shower head. When the cold and hot water valve is closed, the water flow stops, the piston moves downwards, a drainage channel is formed between the water inlet hole and the drain hole for automatic drainage, and the water flow stored in the section of the diversion pipe of the switching valve to the top shower head and higher than the drain hole flows out of the water outlet hole.

The utility model has the advantages that: a flexible automatic drainage device is characterized in that an inner pipe sleeve is arranged inside an outer pipe, a piston is arranged inside the inner pipe, the piston moves upwards to open a water inlet channel, a drainage channel is closed, a water inlet hole and a through hole at the lower end of the inner pipe sleeve form the water inlet channel, water flows into the outer pipe from the through hole at the lower end of the inner pipe sleeve and then flows into a flow guide pipe, the piston moves downwards, the drainage channel is opened, and the water inlet hole and the drainage hole form the drainage channel to automatically drain water in the flow guide pipe; slight inflow just can promote the piston and open inhalant canal voluntarily, seal drainage channel, when there is not the rivers to enter, drainage channel opens automatically, piston motion sensitivity is high, the leakproofness of wash port is strong when intaking, the wash port phenomenon of leaking when intaking has been avoided, realize the water of storing inside the honeycomb duct of automatic discharge overhead shower, it is more convenient to use, low in manufacturing cost, pioneering's overcoming servant people bathe winter earlier and open the hot water valve, avoid cold water, wait for the general knowledge that hot water bathed again.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a perspective view of a flexible automatic drain;

FIG. 2 is an exploded view of the first embodiment, a flexible automatic drain;

FIG. 3 is a view of the first embodiment, the inner sleeve;

FIG. 4 is a sectional view of the first embodiment with the drain passage of the flexible automatic drain open;

FIG. 5 is a sectional view of the inlet passage of the flexible automatic water drain device of the first embodiment when opened;

FIG. 6 is a sectional view of the inlet passage of the flexible automatic water drain apparatus of the first embodiment when fully opened;

FIG. 7 is a sectional view of the second embodiment with the flexible automatic drain mounted with the drain nozzle closed;

FIG. 8 is an exploded view of a third embodiment, a flexible automatic drain;

FIG. 9 is a sectional view of the drain passage of the flexible automatic drain device in a second embodiment, open;

FIG. 10 is a sectional view of the inlet passage of the flexible automatic water drain device of the second embodiment shown open;

FIG. 11 is an exploded view of the flexible automatic drain with a drain nozzle installed for use in a shower nozzle in a bathroom ceiling;

in the figure: 1. the water supply device comprises an outer pipe, 2, an inner pipe sleeve, 3, a piston, 4, a flow guide pipe, 5, a switching valve, 6, a cold and hot water valve, 7, a hose, 11, a water outlet hole, 12, a water discharging nozzle, 21, a water inlet hole, 22, a water outlet groove, 23, a water discharging hole, 24, a through hole, 25, a water discharging groove, 26, a water inlet cover, 31, a spring, 32, an upper part of the piston, 33, a lower part of the piston, 34 and a sealing gasket.

Detailed Description

In the embodiment shown in fig. 1-2, the inner pipe casing 2 is arranged inside the outer pipe 1, the spring 31 and the piston 3 are arranged inside the inner pipe casing 2, and the water inlet cover 26 positions the spring 31 and the piston 3 to move inside the through hole 24 of the inner pipe casing 2. The piston 3 moves upwards to compress the spring 31, the water inlet channel is opened, and the water drainage channel is closed; the elastic potential energy of the spring 31 is released to push the piston 3 to move downwards, the water inlet channel is closed, and the water drainage channel is opened.

When the inner pipe sleeve 2 is installed in the outer pipe 1, the water discharge hole 23 of the inner pipe sleeve 2 is communicated with the water outlet hole 11, and water flowing into the water discharge hole 23 flows out from the water outlet hole 11.

Without limitation, when the inner pipe sleeve 2 is installed into the outer pipe 1, the lower end of the inner pipe sleeve 2 is tightly clamped and fixed with the inner side of the outer pipe 1, the inner pipe sleeve 2 is connected with the outer pipe 1 into a whole, water flows into the water inlet through hole of the water inlet cover 26 at the lower end of the inner pipe sleeve 2, and the outer wall of the inner pipe sleeve 2 is tightly attached to the inner hole wall of the outer pipe 1.

Preferably, when the inner pipe casing 2 is installed in the outer pipe 1, a water outlet channel is formed between the water outlet groove 22 of the inner pipe casing 2 and the inner wall of the outer pipe 1, and the water flowing out of the water inlet hole 21 enters the water outlet channel and then flows into the draft tube 4. Without limitation, the cooperation of the outlet channel 22 with the inner wall of the outer tube 1 allows for a larger passage for water to enter and easier access to water.

Preferably, the upper end of outer tube 1 is provided with the thread and can with honeycomb duct 4 fixed connection, get into the inside rivers of outer tube 1 and flow to the top gondola water faucet through honeycomb duct 4, spray out from the apopore that the top gondola water faucet was spilt again. The lower end of the outer pipe 1 can be connected with a switching valve, and the switching valve controls water flow to enter the inner part of the outer pipe 1.

The lower end through hole 24 of the inner tube 2 is fixedly connected with the water inlet cover 26, the water inlet cover 26 is provided with a water inlet through hole, and water flow pushes the piston 3 to move upwards to compress the spring 31 when entering the through hole 24 of the inner tube sleeve 2 from the water inlet through hole.

When the spring 31 and the piston 3 are installed in the inner pipe 2, the piston 3 seals the water inlet through hole of the water inlet cover 26 at the lower end of the through hole 24 of the inner pipe sleeve 2.

The piston 3 moves upward to compress the spring 31, when the lower end of the piston 3 is higher than the lower end of the water inlet hole 21, a water inlet channel is formed between the water inlet through hole of the water inlet cover 26 and the water inlet hole 21, the water outlet hole 23 is sealed, and water flows into the through hole 24 at the bottom of the inner sleeve 2 from the water inlet through hole of the water inlet cover 26 and then flows out from the water outlet hole 21.

The elastic potential energy of the spring 31 is released to push the piston 3 to move downwards, the through hole 24 at the bottom of the inner pipe sleeve 2 and the water inlet through hole of the water inlet cover 26 are sealed by the piston 3, a water drainage channel is formed between the water inlet hole 21 and the water drainage hole 23, and water flow enters from the water inlet hole 21 and then is drained from the water drainage hole 23.

In the embodiment shown in fig. 3, the inner pipe casing 2 includes a water inlet hole 21, a water outlet hole 23, and a drainage groove 25, the water outlet hole 23 of the inner pipe casing 2 is disposed at the upper end of the water inlet hole 21, the water inlet hole 21 is located lower than the water outlet hole 23, and the outer end of the water inlet hole 21 is provided with a water outlet groove 22. The through hole 24 of the inner pipe sleeve 2 is provided with a drainage groove 25, and preferably, the drainage groove 25 is arranged at the lower end of the water outlet hole 21.

The inner through hole 24 of the inner sleeve 2 is preferably smooth, the piston 3 is in sealed slidable contact with the inner surface of the inner sleeve 2, and the piston 3 can move upwards or downwards in the inner sleeve 2. Without limitation, there may be a gap between the piston 3 and the inner jacket 2.

In the embodiment shown in fig. 4-6, the water flow enters from the bottom to the top of the outer pipe 1 from the water inlet through hole of the water inlet cover 26 at the lower end of the inner pipe sleeve 2, the piston 3 is pushed to move upwards by impact, the upper end of the water inlet 21 is closed when the piston 3 moves upwards until the lower end of the water inlet 21 is opened, a water inlet channel is formed between the water inlet through hole of the water inlet cover 26 and the water inlet 21, the water flow flows into the outer pipe 1 from the water inlet 21, and then flows to the guide pipe 4 to spray from the top; at this time, the spring 31 is compressed, the elastic potential energy of the spring 31 is increased, the piston 3 moves upward as the switching valve controls the water inflow amount, the water inlet hole 21 is opened to be larger, and the water flow amount flowing into the outer tube 2 is larger. When the piston 3 moves upwards to the maximum value, the upward movement is stopped, the water inlet hole 21 is completely opened, the water outlet hole 23 is in a closed state, and water flows into the inner pipe 2 from the water inlet hole 21 and then flows to the shower head through the flow guide pipe 4.

When water flow stops entering the inner pipe sleeve 2, the piston 3 loses water flow impact, the elastic potential energy of the spring 31 is released to push the piston 3 to move downwards, a drainage channel is formed between the water inlet hole 21 and the drainage hole 23, and water stored in the draft tube 4 and higher than the drainage hole 23 flows into the through hole 24 from the water inlet hole 21 and then flows out from the drainage hole 23.

Without limitation, a water discharge nozzle may be installed at the water outlet hole 11 of the outer tube 1, and a hose may be inserted into the water discharge nozzle to guide the water flowing out from the water outlet hole 11 to the ground or to collect the water in a container for use, so as to prevent the discharged water from splashing to a user. The water discharge nozzle can be a flow guide pipe which is inserted into the water outlet hole 11 and is fixedly connected with the water outlet hole 11.

The lower end of the water outlet hole 21 of the inner pipe sleeve 2 is provided with the drainage groove 25, so that the problem that when the elastic potential energy of the spring 31 is released to push the piston 3 to move downwards to close the water inlet hole 21, the piston 3 continues to move downwards to extrude water in the inner pipe sleeve 2 to the switching valve 5 to flow out from the drainage groove 25, the piston 3 can continue to move downwards in the inner pipe sleeve and close the through hole 24 at the lower end of the inner pipe sleeve 1, water drainage is easier, and when the water drainage device is used next time, even if the switching valve is opened to control smaller water inflow, water flow can more accurately push the piston 3 to move upwards to open a water inlet channel and close the water outlet channel, so that the piston 3 can flexibly control water inflow and water drainage when water enters at small flow, the water outlet hole 23 can be better sealed and closed when water enters, and the water leakage phenomenon of the water outlet hole 23 when water enters is avoided.

In a second embodiment shown in fig. 7, a water outlet nozzle 12 with a valve is provided at the water outlet hole 11 of the outer pipe 1, and the valve is closed to prevent water from being discharged, and the water inlet channel is not influenced to be automatically opened when water enters. An opening is arranged at the upper end of the through hole 24 of the inner pipe sleeve 2, a spring 31 and a piston 3 are arranged in the through hole 24, and the water inlet cover 26 is fixedly connected with the lower end of the inner pipe sleeve 2 to position the spring 31 and the piston 3 in the through hole 24 of the inner pipe sleeve 2 to move.

The piston 3 comprises a piston lower part 32 and a piston upper part 33, the piston 3 moves upwards to compress the spring 31, when the lower end of the water inlet hole 21 is opened, a water inlet channel is formed between the water inlet hole 21 and the water inlet through hole, the piston upper part 33 seals the water outlet hole 23, water flows into the water inlet hole 21 from the water inlet through hole of the water inlet cover 26 and then flows to the guide pipe 4 to be sprayed out from the overhead shower. When the piston 3 is pushed by the spring 31 to move downwards, the water inlet channel is closed, the water drainage channel is opened, a water drainage channel is formed between the upper end opening of the inner pipe sleeve 2 and the water drainage hole 23, water stored in the flow guide pipe 4 can enter the water drainage hole 23 from top to bottom from the opening at the upper end of the inner pipe sleeve 2 to flow out under the action of gravity, or the water drainage channel is formed among the upper end opening of the inner pipe sleeve 2, the water inlet hole 21 and the water drainage hole 23, and water flow is drained from the water drainage hole 23. Through having set up mutually supporting of opening and piston 3 in the through-hole 24 upper end of inner tube cover 2, when closing the water discharging nozzle, piston 3 could make drainage channel open in through-hole 24 the inside upward movement, when realizing bathing in summer and not boiling water, the user can close water discharging nozzle 12, when the top gondola water faucet does not drain, directly opens the cold water valve and uses, opens water discharging nozzle 12 again when using in winter.

In a third embodiment shown in fig. 8-10, an inner tube housing 2 is disposed inside an outer tube 1, a piston 3 is disposed inside the inner tube 1, the piston 3 moves upward to open a water inlet channel and close a water outlet channel, the water inlet hole 21 and a through hole 24 at the lower end of the inner tube housing 2 form a water inlet channel, water flows into the outer tube from the through hole 24 at the lower end of the inner tube housing 2, the piston 3 moves downward to open the water outlet channel, the water inlet hole 21 and a water outlet hole 23 form a water outlet channel, and water stored in the outer tube 1 flows out from the water outlet channel to the water outlet hole 23.

The water discharge hole 23 of the inner pipe sleeve 2 is arranged at the upper end of the water inlet hole 21, the position of the water inlet hole 21 is lower than the water discharge hole 23, and the outer end of the water inlet hole 21 is provided with a water outlet groove 22. When the inner pipe sleeve 2 is installed in the outer pipe 1, the water discharge hole 23 of the inner pipe sleeve 2 is communicated with the water discharge hole 11, the outer wall of the inner pipe sleeve 2 is in sealing fit with the inner hole wall of the outer pipe 1, and a water discharge channel is formed between the water discharge groove 22 of the inner pipe sleeve 2 and the inner wall of the outer pipe 1.

The piston 3 which is reset by self gravity is arranged in the through hole 24 of the inner pipe sleeve 2, the upper part of the piston 3 is provided with a sealing gasket 34, the sealing gasket 34 is fixedly arranged at the upper part of the piston 3, the water inlet cover 26 is fixedly connected with the lower end of the inner pipe sleeve 2 to position the piston 3 in the through hole 24 of the inner pipe sleeve 2 to move, and the water inlet cover 26 is provided with a plurality of water inlet through holes. The piston 3 and the packing 34 have an outer diameter smaller than the through-hole 24 of the inner tube housing 2. Without limitation, the clearance between the piston 3 and the sealing pad 34 inside the through hole 24 of the inner jacket 2 and the inner wall of the inner jacket 2 may be between 0.1 MM and 1.5MM, preferably 0.8 MM.

The piston 3 keeps a downward movement trend in the through hole 24 of the inner pipe sleeve 2 and is attached to the water inlet through hole of the water inlet cover 26 under the action of gravity, water enters the water inlet through hole of the water inlet cover 26 to impact the piston 3 to move upwards, the water inlet channel is opened, the upper end of the piston 3 and the sealing gasket 34 seal the water outlet hole 23, and water flows into the water inlet hole 21 from the water inlet through hole of the water inlet cover 26 and then flows into the outer pipe 1. When the water flow stops impacting the piston 3, because the outer diameters of the piston 3 and the sealing gasket 34 are smaller than the through hole 24 of the inner pipe sleeve 2, the piston 3 moves downwards to the water inlet cover 26 in the through hole 24 of the inner pipe sleeve 2 under the action of gravity, the water drainage channel is opened, the water inlet hole 21 and the water drainage hole 23 form a water drainage channel, and the water stored in the outer pipe 1 flows out from the water drainage channel to the water drainage hole 23. The impact force of water when having utilized intaking promotes piston 3 upward movement, and inhalant canal opens into water, and when rivers stopped, the gravity of piston 3 self makes the piston downstream reset, and the principle that drainage channel opened realizes automatic drainage, and the manufacturing principle is simple, and is with low costs.

In the embodiment shown in fig. 11, the cold and hot water valve 6 is usually closest to the water heater, the cold and hot water valve 6 controls the flow of hot water, and the automatic water discharging device is installed at the lower end of the flow guide pipe 4 of the top shower head, i.e. at the water outlet of the switching valve 5 close to the hot water pipe. The upper end of outer tube 1 can be with 4 threaded connection of honeycomb duct, the lower extreme of outer tube 1 can with 5 threaded connection of diverter valve, 5 lower extremes of diverter valve and the 6 threaded connection of cold and hot water valve, diverter valve 5 still including can be connected with hose 7, hose 7 is connected with handheld gondola water faucet.

When the cold and hot water valve 6 is opened, the switching valve 5 is switched to the top of the flow guide pipe 4 for shower use, water flows into the impact piston 3 from the through hole of the water inlet cover 26 of the inner pipe sleeve 2, the piston 3 is pushed to move upwards to compress the spring, the water inlet hole 21 is opened at the moment, a water inlet channel is formed between the water inlet hole 21 and the water inlet through hole, the water outlet hole 11 is closed, and water flows into the flow guide pipe 4 from bottom to top continuously from the water inlet hole 21 and then is sprayed out from the fixed shower. When the cold and hot water valve 6 is closed, water flow stops, the elastic potential energy of the spring is released to push the piston 3 to move downwards, a drainage channel is formed between the water inlet hole 21 and the drainage hole 23 to automatically drain water, and water stored in the section of the diversion pipe 4 from the upper end of the switching valve to the top shower head flows out from the water outlet hole 11.

When using fixed gondola water faucet next time, just do not store water in this section honeycomb duct 4 of gondola water faucet from the 5 upper ends of diverter valve to the summit, open when cold and hot water valve 6 intakes, the rivers of suitable warm directly continue to flow into honeycomb duct 4, spray out the use from the overhead shower again, slight inflow can both promote the automatic inhalant canal that opens of piston 3, and close drainage channel, when there is not the rivers to enter, drainage channel opens, the sensitivity of piston 3 motion is high, the leakproofness of wash port 23 is strong when intaking, wash port 23 water leakage phenomenon when having avoided intaking, realize the automatic water of storing inside of shower nozzle of overhead shower, it is more convenient to use.

While the foregoing shows and describes the general principles and features of the present invention, and without limitation, it is to be understood that the foregoing description and the following detailed description are merely illustrative of the principles of the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a nimble automatic drainage device, includes outer tube, interior pipe box, piston, its characterized in that: the water inlet and the water outlet are formed in the outer pipe, the piston moves downwards, the water outlet is opened, the water inlet and the water outlet form a water outlet, and water stored in the outer pipe flows out from the water outlet to the water outlet.

2. The flexible automatic drain device according to claim 1, wherein: the inner pipe sleeve comprises a water inlet hole and a water drain hole, the position of the water inlet hole of the inner pipe sleeve is lower than the water drain hole, and a water outlet groove is formed in the outer end of the water inlet hole.

3. The flexible automatic drain device according to claim 2, characterized in that: when the inner pipe sleeve is installed in the outer pipe, the water discharge hole of the inner pipe sleeve is communicated with the water discharge hole, the outer wall of the inner pipe sleeve is attached to the inner hole wall of the outer pipe, and a water discharge channel is formed between the water discharge groove of the inner pipe sleeve and the inner wall of the outer pipe.

4. The flexible automatic drain device according to claim 1 or 3, wherein: the lower end of the inner pipe sleeve is provided with a water inlet cover, the water inlet cover is provided with a water inlet through hole, and the spring and the piston are positioned in the through hole of the inner pipe sleeve to move by the water inlet cover.

5. The flexible automatic drain device according to claim 4, wherein: the through hole of the inner pipe sleeve is a smooth surface, the piston is in slidable contact with the inner part of the inner pipe sleeve, and the piston can slide upwards or downwards in the inner pipe sleeve.

6. The flexible automatic drain device according to claim 5, wherein: and the through hole of the inner pipe sleeve is provided with a drainage groove which is arranged at the lower end of the water outlet hole.

7. The flexible automatic drain device according to claim 6, wherein: the piston moves upwards to compress the spring, a water inlet channel is formed between the through hole of the water inlet cover and the water inlet hole, the drain hole is closed, the elastic potential energy of the spring is released to push the piston to move downwards, and a drainage channel is formed between the water inlet hole and the drain hole.

8. The flexible automatic drain device according to claim 1 or 3, wherein: the water outlet of the outer pipe is provided with a water discharging nozzle with a valve, the upper end of the through hole of the inner pipe sleeve is provided with an opening, a spring and a piston are arranged in the through hole, and the water inlet cover is fixedly connected with the lower end of the inner pipe sleeve to position the spring and the piston in the through hole of the inner pipe sleeve to move.

9. The flexible automatic drain device according to claim 1 or 3, wherein: the inner pipe sleeve is characterized in that a piston which resets by utilizing self gravity is further arranged in the through hole of the inner pipe sleeve, a sealing gasket is arranged at the upper part of the piston, and a water inlet cover is fixedly connected with the lower end of the inner pipe sleeve to position the piston in the through hole of the inner pipe sleeve to move.

10. The flexible automatic drain device according to claim 9, wherein: the piston blocks the water inlet through hole of the water inlet cover by gravity in the through hole of the inner pipe sleeve, water flow enters the impact piston from the through hole of the water inlet cover to move upwards, the water inlet channel is opened, and the water drainage channel is closed; when the water flow stops, the piston moves downwards to reset under the action of the gravity of the piston, and the drainage channel is opened.

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