CN209891308U

CN209891308U - Dual-mode water-saving water outlet device

Info

Publication number: CN209891308U
Application number: CN201920314150.8U
Authority: CN
Inventors: 李镇银; 侯雪萍; 许传里; 许泽恺
Original assignee: Xiamen And Tda Industrial Co Ltd
Current assignee: Xiamen And Tda Industrial Co Ltd
Priority date: 2019-03-13
Filing date: 2019-03-13
Publication date: 2020-01-03
Anticipated expiration: 2029-03-13

Abstract

The utility model discloses a dual mode water conservation goes out water ware, belong to the water installation field, dual mode water conservation goes out the water ware and includes water outlet device casing and play water valves, the upper end joint of going out the water valves is in water outlet device casing, and the end of intaking of going out the water valves is linked together with the end of intaking of water outlet device casing, it includes the nozzle group to go out the water valves, regulating valve group and mode regulation are detained, the joint of nozzle group is in water outlet device casing, the end of intaking of nozzle group is linked together with the end of intaking of water outlet device casing, the end threaded connection that intakes of the water outlet end of nozzle group and regulating valve group, the mode regulation is detained and is cup jointed. The utility model discloses a double mode water conservation goes out water ware adopts nozzle group and regulating valve group matched with outlet valve structure, carries out pressure boost throttle play water to the rivers, and can switch atomizing water spray mode or penetrate the retaining mode directly, satisfies daily washing work with the low discharge water, saves water more.

Description

Dual-mode water-saving water outlet device

Technical Field

The utility model relates to a water outlet device field especially relates to a double mode water conservation goes out hydrophone.

Background

The water outlet device can discharge water flow, can be divided into water outlet categories such as a bathroom faucet, a shower head, a suction head, a spray gun and the like, can be used for watering plants, can also be used for occasions such as industrial water spraying, kitchen cleaning, bathroom showering and the like, and is a very common daily product in life and work. When the water outlet device is used in daily cleaning occasions, the water outlet effect and the water saving effect need to be considered, so the reasonability of the structural design of the water outlet device can greatly influence the water outlet effect and the water saving effect.

Chinese patent document publication No. CN207176827U discloses a water outlet device for a faucet, which comprises a connector connected with the faucet, a water outlet head for discharging water, and a connecting pipe arranged between the connector and the water outlet head, wherein the water outlet head comprises a housing, a water outlet arranged at the center of the bottom of the housing, and at least two groups of water spraying hole groups arranged outside the water outlet, a connecting cavity is arranged in the connector, a leakage-proof structure is arranged between the connecting cavity and the faucet, the leakage-proof structure comprises an annular sealing surface arranged on the bottom of the connecting cavity and at least two annular convex ribs arranged on the inner surface of the connecting cavity, and the upper end of the connecting cavity is arranged in a flaring structure. After the connector of the water outlet device is communicated with the water faucet, water flow enters the water outlet head through the connecting pipe, and is sprayed out from the water outlet or the water spraying hole group of the water outlet head by rotating the change-over switch, so that the water column water outlet or water spraying outlet function is realized.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's defect, the utility model aims to solve the technical problem that a double mode water conservation goes out water ware is proposed, adopts nozzle group and regulating valve group matched with outlet valve structure, carries out pressure boost throttle play water to the rivers, and can switch atomizing water spray mode or penetrate the retaining mode directly, satisfies daily work of washing with the low discharge water, economizes on water more.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a pair of dual mode water conservation water outlet device, including water outlet device casing and outlet valve group, the upper end joint of outlet valve group is in the water outlet device casing, and the end of intaking of outlet valve group and the end of intaking of water outlet device casing are linked together, and outlet valve group includes that nozzle group, governing valve group and mode are adjusted and are detained, and nozzle group joint is in the water outlet device casing, and the end of intaking of nozzle group is linked together with the end of intaking of water outlet device casing, and the outlet end of nozzle group and the end threaded connection that intakes of governing valve group, mode are adjusted and are detained and cup joint on the governing valve group.

The utility model discloses preferred technical scheme lies in, nozzle group includes the nozzle body, and the end of intaking of nozzle body is linked together with the end of intaking of play water ware casing, and the governing valve group includes outer valve barrel, interior valve body and case, the play water end of nozzle body and the end threaded connection that intakes of interior valve body, and outer valve barrel cup joints the lower extreme at interior valve body, and outer valve barrel and interior valve body threaded connection, and the case inlays to be established in interior valve body, and the mode adjustment is detained and is cup jointed on outer valve barrel, and the mode adjustment is detained and is closely cooperated with outer valve barrel.

The utility model discloses preferred technical scheme lies in, nozzle inlet opening and nozzle apopore have been seted up in proper order to the central top-down of nozzle body, inner valve connecting hole and inner valve apopore have been seted up in proper order to the central top-down of interior valve body, the water inlet of nozzle inlet opening is linked together with the end of intaking of water outlet ware casing, the delivery port of nozzle inlet opening is linked together with the water inlet of nozzle apopore, the delivery port and the inner valve connecting hole threaded connection of nozzle body, the hole bottom and the inner valve apopore of inner valve connecting hole are linked together, the delivery port of nozzle apopore passes the hole bottom and the water inlet of inner valve apopore of inner valve connecting hole and is linked together, the.

The utility model discloses preferably technical scheme lies in, interior valve body configuration is the interior valve body of echelonment, and the valve body includes first step portion, second step portion and third step portion in the echelonment, and the shaft diameter of first step portion, second step portion and third step portion reduces gradually, and the shoulder face of the hookup location of first step portion and second step portion offsets with the up end of outer valve barrel, offers the external screw thread with the internal thread matched with of outer valve barrel on the outer disc of second step portion.

The utility model discloses preferred technical scheme lies in, first ring channel has been seted up in the second step portion, the second ring channel has been seted up in the third step portion, the cross bore that is linked together with the internal valve apopore is seted up to the tank bottom of first ring channel, cavity between the inner wall of first ring channel and outer valve barrel forms first play water cavity, cavity between the inner wall of second ring channel and outer valve barrel forms the second and goes out the water cavity, the joint has a water sealing washer in the second ring channel, the drainage groove that is linked together with the second play water cavity is seted up to the cell wall of first ring channel.

The utility model discloses preferred technical scheme lies in, a plurality of straight-flow holes that link up mutually with the lower terminal surface of third step portion are seted up to the cell wall of second annular groove, and a plurality of straight-flow holes are equidistance evenly distributed along same circumference.

The utility model discloses preferred technical scheme lies in, interior valve apopore top-down comprises straight hole, taper hole and pinhole in proper order, and the main aspects hole and the straight hole of taper hole are linked together, and the tip hole and the pinhole of taper hole are linked together, and the lower extreme of lieing in the case in the taper hole is the toper structure.

The utility model discloses preferred technical scheme lies in, and the nozzle group still includes first nozzle O type circle and second nozzle O type circle, and first nozzle O type circle joint is in the upper end of nozzle body, and second nozzle O type circle joint is at the lower extreme of nozzle body, and the nozzle body closely cooperates with the inner wall of water outlet device casing through first nozzle O type circle and second nozzle O type circle respectively.

The utility model discloses preferred technical scheme lies in, and the joint has outer valve O type circle on the outer valve barrel, and the inner wall that outer valve barrel detained through outer valve O type circle and mode adjustment closely cooperates.

The utility model discloses preferred technical scheme lies in, and the even equidistance equipartition of inner wall that the mode was adjusted and is detained has a plurality of blocks protruding, and a plurality of draw-in grooves of even equidistance equipartition are seted up from bottom to top to the lower extreme off-plate of outer valve barrel, block protruding and the cooperation of draw-in groove joint.

The utility model has the advantages that:

the utility model provides a dual mode water conservation outlet device, including outlet device casing and outlet valve group, the upper end joint of outlet valve group is in the outlet device casing, and the end of intaking of outlet valve group and outlet device casing is linked together, and the outlet valve group includes that nozzle group, governing valve group and mode are adjusted and are detained, and nozzle group joint is in the outlet device casing, and the end of intaking of nozzle group and the end of intaking of outlet device casing are linked together, and the outlet end of nozzle group and the end threaded connection that intakes of governing valve group, mode are adjusted and are detained and cup joint on the governing valve group. The water outlet device adopts a nozzle group and regulating valve group matched water outlet valve structure, the water outlet channel is smaller, the water pressure of water flow is larger, the flow speed is faster, the pressurization throttling water outlet is realized, the user is adjusted and buckled through the rotation mode, different water outlet modes can be switched, the atomization water spraying or direct injection water storage is realized, the daily flushing work is met by small flow water, and more water is saved.

Drawings

Fig. 1 is a schematic overall structure diagram of a dual-mode water-saving water outlet device provided in the embodiment of the present invention;

fig. 2 is an exploded view of the dual-mode water-saving water outlet device provided in the embodiment of the present invention;

FIG. 3 is a right side view of the structure of the dual-mode water-saving water outlet device provided in the embodiment of the present invention;

FIG. 4 is a structural section view of the dual-mode water-saving water outlet device in the direction A-A in FIG. 3;

FIG. 5 is an enlarged view of the dual-mode water-saving water outlet device shown in the portion D of FIG. 4;

fig. 6 is a structural axis measuring view of the inner valve body according to the embodiment of the present invention.

In the figure:

0. a water outlet device shell; 1. a water outlet valve bank; 2. a nozzle group; 21. a nozzle body; 211. a nozzle water inlet hole; 212. a nozzle water outlet; 22. a first nozzle O-ring; 23. a second nozzle O-ring; 3. an adjusting valve group; 31. an outer valve housing; 311. an internal thread; 312. a card slot; 32. an inner valve body; 321. an inner valve connection hole; 322. a water outlet hole of the inner valve; 3221. a straight hole; 3222. a taper hole; 3223. a pinhole; 323. a first step portion; 324. a second step section; 3241. an external thread; 3242. a first annular groove; 3243. a drainage groove; 325. a third step portion; 3251. a second annular groove; 3252. a straight-flow hole; 326. a transverse hole; 33. a valve core; 34. a first water outlet cavity; 35. a second water outlet cavity; 36. a water outlet sealing ring; 37. an outer valve O-ring; 4. a mode adjusting buckle; 41. and (6) clamping and protruding.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 6, the dual-mode water saving and discharging device provided in this embodiment includes a water discharging device housing 0 and a water discharging valve set 1, an upper end of the water discharging valve set 1 is connected to the water discharging device housing 0 in a clamping manner, a water inlet end of the water discharging valve set 1 is communicated with a water inlet end of the water discharging device housing 0, the water discharging valve set 1 includes a nozzle set 2, an adjusting valve set 3 and a mode adjusting buckle 4, the nozzle set 2 is connected to the water discharging device housing 0 in a clamping manner, a water inlet end of the nozzle set 2 is communicated with a water inlet end of the water discharging device housing 0, a water outlet end of the nozzle set 2 is connected to a water inlet end of the adjusting valve set 3 in a threaded manner, and the mode adjusting buckle. In order to realize the dual-mode switching of water flow by the dual-mode water-saving water outlet device, the water outlet process is practical and water-saving. Further, after the user connects the water outlet device shell 0 with the water supply pipeline, water flows into the water outlet valve group 1 to spray water. At the in-process that goes out water valves 1 and realize the water spray, rivers get into nozzle group 2 earlier, the rivers passageway is littleer than the water pipe, and through the aperture on the water outlet device casing 0 with the air suction to the inner chamber of nozzle group 2, can realize pressure boost drainage water spray, carry into adjusting valve group 3 with rivers, the size of adjusting valve group 3's rivers passageway further reduces, play certain throttle effect, and rivers flow towards more depths, water pressure progressively strengthens, the velocity of flow accelerates, high-speed high-pressure small discharge rivers can realize effective cleanness to the object, save more water. The user is adjusted through rotating the mode and is detained 4, can switch the play water mode of regulating valve group 3, goes out the water mode and can switch into atomizing water spray mode or penetrate the retaining mode directly. Adopt and penetrate the retaining mode directly and then can increase water flow, realize retaining, more practical convenient, when the user switched into atomizing water spray mode from penetrating the retaining mode directly, through spraying water with the dispersion behind the water atomization of a small amount of, can carry out the washing of large tracts of land, water conservation more to the object. Through the process, the dual-mode water-saving water outlet device can realize the dual-mode switching of water flow, and the water outlet process is practical and water-saving.

In order to make the nozzle group 2 and the regulating valve group 3 cooperate with each other to realize water spraying. Further, the nozzle group 2 includes a nozzle body 21, a water inlet end of the nozzle body 21 is communicated with a water inlet end of the water outlet device shell 0, the regulating valve group 3 includes an outer valve sleeve 31, an inner valve body 32 and a valve core 33, a water outlet end of the nozzle body 21 is in threaded connection with a water inlet end of the inner valve body 32, the outer valve sleeve 31 is sleeved at the lower end of the inner valve body 32, the outer valve sleeve 31 is in threaded connection with the inner valve body 32, the valve core 33 is embedded in the inner valve body 32, the mode regulating buckle 4 is sleeved on the outer valve sleeve 31, and the mode regulating buckle 4 is tightly matched with the outer valve sleeve 31. The nozzle body 21 conveys water flow into the inner valve body 32, and the water flow is guided by the valve core 33 to spray water, wherein, the user can rotate the mode adjusting button 4 to drive the outer valve sleeve 31 to rotate, adjust the tightness of the outer valve sleeve 31 matched with the inner valve body 32, and further switch the water outlet mode. When the outer valve sleeve 31 and the inner valve body 32 are screwed tightly, the water outlet mode is an atomization water spraying mode, and when the outer valve sleeve 31 and the inner valve body 32 are screwed loose, the water outlet mode is a direct water storage mode. Through the process, the nozzle group 2 and the regulating valve group 3 can be matched with each other to realize water spraying.

In order to make the nozzle body 21 and the inner valve body 32 cooperate with each other to spray water. Further, the center of the nozzle body 21 is sequentially provided with a nozzle water inlet hole 211 and a nozzle water outlet hole 212 from top to bottom, the center of the inner valve body 32 is sequentially provided with an inner valve connecting hole 321 and an inner valve water outlet hole 322 from top to bottom, a water inlet of the nozzle water inlet hole 211 is communicated with a water inlet end of the water outlet device shell 0, a water outlet of the nozzle water inlet hole 211 is communicated with a water inlet of the nozzle water outlet hole 212, a water outlet end of the nozzle body 21 is in threaded connection with the inner valve connecting hole 321, a hole bottom of the inner valve connecting hole 321 is communicated with the inner valve water outlet hole 322, a water outlet of the nozzle water outlet hole 212 is communicated with a water inlet of the inner valve water outlet hole 322 through. After the water flow enters the nozzle body 21, the water flow sequentially passes through the nozzle water inlet hole 211 and the nozzle water outlet hole 212 to enter the inner valve body 32, and then sequentially passes through the inner valve connecting hole 321 and the inner valve water outlet hole 322 to spray water. Wherein, the water outlet end of the nozzle body 21 is connected with the inner valve connecting hole 321 by screw threads, so that the disassembly and assembly are more convenient. Through the above process, the nozzle body 21 and the inner valve body 32 can cooperate with each other to spray water.

In order to realize the direct water spraying and the atomized water spraying of the inner valve body 32. Further, the inner valve body 32 is configured as a stepped inner valve body, the stepped inner valve body includes a first step portion 323, a second step portion 324, and a third step portion 325, the shaft diameters of the first step portion 323, the second step portion 324, and the third step portion 325 are gradually reduced, a shaft shoulder surface of a connection position of the first step portion 323 and the second step portion 324 abuts against an upper end surface of the outer valve sleeve 31, and an outer circumferential surface of the second step portion 324 is provided with an external thread 3241 which is matched with the internal thread 311 of the outer valve sleeve 31. The second step portion 324 is provided with a first annular groove 3242, the third step portion 325 is provided with a second annular groove 3251, the bottom of the first annular groove 3242 is provided with a transverse hole 326 communicated with the inner valve water outlet hole 322, a cavity between the first annular groove 3242 and the inner wall of the outer valve sleeve 31 forms a first water outlet cavity 34, a cavity between the second annular groove 3251 and the inner wall of the outer valve sleeve 31 forms a second water outlet cavity 35, a water outlet sealing ring 36 is clamped in the second annular groove 3251, and the wall of the first annular groove 3242 is provided with a drainage groove 3243 communicated with the second water outlet cavity 35. The groove wall of the second annular groove 3251 is provided with a plurality of straight flow holes 3252 communicated with the lower end surface of the third step portion 325, and the plurality of straight flow holes 3252 are uniformly distributed along the same circumference at equal intervals. After water flows enter the water outlet hole 322 of the inner valve, a user adjusts the buckle 4 through the rotation mode to drive the outer valve sleeve 31 to rotate, the tightness of the fit between the outer valve sleeve 31 and the inner valve body 32 is adjusted, namely, the thread tightness fit relation between the inner thread 311 and the outer thread 3241 is adjusted, so that the water flows in two different water outlet paths or in a single path simultaneously, and two water outlet modes are realized. When the internal thread 311 and the external thread 3241 are in a loose fit relationship, water can flow through two different water outlet paths simultaneously, and the water flows into the water outlet hole 322 of the inner valve and then is divided into two different water outlet paths. The first water outlet path is as follows: the water flow passes through the water outlet hole 322 of the inner valve and realizes atomized water spraying under the flow guiding effect of the valve core 33. The second water outlet path is as follows: after entering the water outlet hole 322 of the inner valve, water flows into the first water outlet cavity 34 through the cross hole 326 and then enters the second water outlet cavity 35 through the drainage groove 3243, because the internal thread 311 and the external thread 3241 are in loose fit, the water outlet sealing ring 36 and the groove wall of the second annular groove 3251 are in clearance fit, the water flows can enter the direct current hole 3252 from the second water outlet cavity 35 through the fit clearance between the water outlet sealing ring 36 and the groove wall of the second annular groove 3251 and then directly spray water outwards through the direct current hole 3252, and the water column of the directly sprayed water has a large flow and directly sprays water around the water spray, so that the water storage mode is directly sprayed in the water outlet state. When the internal thread 311 and the external thread 3241 are tightly fitted, the water outlet sealing ring 36 is in interference fit with the wall of the second annular groove 3251, and the water outlet sealing ring 36 is tightly attached to the wall of the second annular groove 3251 and blocks the water inlet of the straight-flow hole 3252, so that the second water outlet path cannot flow, and water flows only through the first water outlet path. At this moment, after water flow enters the water outlet hole 322 of the inner valve, atomization water spraying is realized under the diversion effect of the valve core 33, and an atomization water spraying mode is presented in a water outlet state. Through the above process, the inner valve body 32 can realize direct water spraying and atomized water spraying.

In order to make the inner valve water outlet hole 322 and the valve core 33 cooperate with each other to realize atomized water spraying. Further, the inner valve water outlet hole 322 is sequentially composed of a straight hole 3221, a tapered hole 3222 and a needle hole 3223 from top to bottom, a large end hole of the tapered hole 3222 is communicated with the straight hole 3221, a small end hole of the tapered hole 3222 is communicated with the needle hole 3223, and the lower end of the valve element 33 positioned in the tapered hole 3222 is of a tapered structure. The water flow sequentially passes through the straight hole 3221 and the tapered hole 3222, wherein the water flow can realize a flow guiding effect along the valve core 33, and in the tapered hole 3222, the water flow can be sprayed out from the needle hole 3223 along the tapered lower end of the valve core 33, so that atomized water spraying is realized. Through the above process, the inner valve water outlet hole 322 and the valve core 33 can be matched with each other to realize atomization and water spraying.

In order to make the nozzle group 2 and the water outlet device shell 0 assembled more tightly, the occurrence of leakage is reduced. Further, the nozzle set 2 further comprises a first nozzle O-ring 22 and a second nozzle O-ring 23, the first nozzle O-ring 22 is clamped at the upper end of the nozzle body 21, the second nozzle O-ring 23 is clamped at the lower end of the nozzle body 21, and the nozzle body 21 is tightly matched with the inner wall of the water outlet device shell 0 through the first nozzle O-ring 22 and the second nozzle O-ring 23. The nozzle body 21 is in sealing fit with the water outlet device shell 0 by clamping the first nozzle O-shaped ring 22 and the second nozzle O-shaped ring 23, so that the nozzle group 2 and the water outlet device shell 0 are assembled more tightly, and the leakage is reduced.

In order to make the outer valve housing 31 more tightly fitted with the mode adjustment buckle 4. Further, an outer valve O-shaped ring 37 is clamped on the outer valve sleeve 31, and the outer valve sleeve 31 is tightly matched with the inner wall of the mode adjusting buckle 4 through the outer valve O-shaped ring 37. The outer valve sleeve 31 is tightly assembled with the mode adjusting buckle 4 by clamping the outer valve O-shaped ring 37.

To facilitate the assembly positioning of the mode adjustment buckle 4 with the outer valve sleeve 31. Further, a plurality of clamping protrusions 41 are uniformly and equidistantly distributed on the inner wall of the mode adjusting buckle 4, a plurality of clamping grooves 312 are uniformly and equidistantly distributed on the outer edge of the lower end surface of the outer valve sleeve 31 from bottom to top, and the clamping protrusions 41 are in clamping fit with the clamping grooves 312. The clamping protrusion 41 is matched with the clamping groove 312 in a clamping manner, so that the mode adjusting buckle 4 is positioned more reliably and conveniently in the assembling process of the outer valve sleeve 31.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. The utility model provides a dual mode water conservation water outlet device, includes water outlet device casing (0) and goes out water valves (1), the upper end joint of going out water valves (1) is in water outlet device casing (0), just the end of intaking of going out water valves (1) with the end of intaking of water outlet device casing (0) is linked together its characterized in that:

the water outlet valve group (1) comprises a nozzle group (2), an adjusting valve group (3) and a mode adjusting buckle (4);

the nozzle group (2) is clamped in the water outlet device shell (0), and the water inlet end of the nozzle group (2) is communicated with the water inlet end of the water outlet device shell (0);

the water outlet end of the nozzle group (2) is in threaded connection with the water inlet end of the regulating valve group (3);

the mode adjusting buckle (4) is sleeved on the adjusting valve group (3).

2. The dual-mode water-saving water outlet device according to claim 1, characterized in that:

the nozzle group (2) comprises a nozzle body (21);

the water inlet end of the nozzle body (21) is communicated with the water inlet end of the water outlet device shell (0);

the adjusting valve group (3) comprises an outer valve sleeve (31), an inner valve body (32) and a valve core (33);

the water outlet end of the nozzle body (21) is in threaded connection with the water inlet end of the inner valve body (32);

the outer valve sleeve (31) is sleeved at the lower end of the inner valve body (32), and the outer valve sleeve (31) is in threaded connection with the inner valve body (32);

the valve core (33) is embedded in the inner valve body (32);

the mode adjusting buckle (4) is sleeved on the outer valve sleeve (31), and the mode adjusting buckle (4) is tightly matched with the outer valve sleeve (31).

3. The dual-mode water-saving water outlet device according to claim 2, characterized in that:

the center of the nozzle body (21) is sequentially provided with a nozzle water inlet hole (211) and a nozzle water outlet hole (212) from top to bottom;

the center of the inner valve body (32) is sequentially provided with an inner valve connecting hole (321) and an inner valve water outlet hole (322) from top to bottom;

the water inlet of the nozzle water inlet hole (211) is communicated with the water inlet end of the water outlet device shell (0), and the water outlet of the nozzle water inlet hole (211) is communicated with the water inlet of the nozzle water outlet hole (212);

the water outlet end of the nozzle body (21) is in threaded connection with the inner valve connecting hole (321);

the hole bottom of the inner valve connecting hole (321) is communicated with the inner valve water outlet hole (322);

the water outlet of the nozzle water outlet hole (212) penetrates through the hole bottom of the inner valve connecting hole (321) to be communicated with the water inlet of the inner valve water outlet hole (322);

the valve core (33) is embedded in the water outlet hole (322) of the inner valve.

4. The dual-mode water-saving water outlet device according to claim 3, characterized in that:

the inner valve body (32) is configured as a stepped inner valve body;

the stepped inner valve body comprises a first step part (323), a second step part (324) and a third step part (325);

the shaft diameters of the first step part (323), the second step part (324) and the third step part (325) are gradually reduced;

the shaft shoulder surface of the connecting position of the first step part (323) and the second step part (324) is abutted against the upper end surface of the outer valve sleeve (31);

and the outer circular surface of the second step part (324) is provided with an external thread (3241) matched with the internal thread (311) of the outer valve sleeve (31).

5. The dual-mode water-saving water outlet device according to claim 4, characterized in that:

a first annular groove (3242) is formed in the second step part (324);

a second annular groove (3251) is formed in the third step part (325);

a transverse hole (326) communicated with the water outlet hole (322) of the inner valve is formed in the bottom of the first annular groove (3242);

the cavity between the first annular groove (3242) and the inner wall of the outer valve sleeve (31) forms a first water outlet cavity (34);

a second water outlet cavity (35) is formed by a cavity between the second annular groove (3251) and the inner wall of the outer valve sleeve (31);

a water outlet sealing ring (36) is clamped in the second annular groove (3251);

and a drainage groove (3243) communicated with the second water outlet cavity (35) is formed in the groove wall of the first annular groove (3242).

6. The dual-mode water-saving water outlet device according to claim 5, characterized in that:

a plurality of straight-flow holes (3252) communicated with the lower end face of the third step part (325) are formed in the groove wall of the second annular groove (3251);

the straight-flow holes (3252) are uniformly distributed along the same circumference at equal intervals.

7. The dual-mode water-saving water outlet device according to claim 3, characterized in that:

the inner valve water outlet hole (322) is sequentially composed of a straight hole (3221), a taper hole (3222) and a pinhole (3223) from top to bottom;

a large end hole of the taper hole (3222) is communicated with the straight hole (3221), and a small end hole of the taper hole (3222) is communicated with the pinhole (3223);

the lower end of the valve core (33) positioned in the taper hole (3222) is in a conical structure.

8. The dual-mode water-saving water outlet device according to claim 2, characterized in that:

the nozzle group (2) further comprises a first nozzle O-ring (22) and a second nozzle O-ring (23);

the first nozzle O-shaped ring (22) is clamped at the upper end of the nozzle body (21);

the second nozzle O-shaped ring (23) is clamped at the lower end of the nozzle body (21);

the nozzle body (21) is tightly matched with the inner wall of the water outlet device shell (0) through the first nozzle O-shaped ring (22) and the second nozzle O-shaped ring (23).

9. The dual-mode water-saving water outlet device according to claim 2, characterized in that:

an outer valve O-shaped ring (37) is clamped on the outer valve sleeve (31);

the outer valve sleeve (31) is tightly matched with the inner wall of the mode adjusting buckle (4) through the outer valve O-shaped ring (37).

10. The dual-mode water-saving water outlet device according to claim 2, characterized in that:

a plurality of clamping protrusions (41) are uniformly and uniformly distributed on the inner wall of the mode adjusting buckle (4) at equal intervals;

a plurality of clamping grooves (312) which are uniformly and equidistantly distributed are formed in the outer edge of the lower end surface of the outer valve sleeve (31) from bottom to top;

the clamping protrusion (41) is in clamping fit with the clamping groove (312).