CN217299180U - Toilet and waterway switching structure of human body cleaning device thereof - Google Patents

Abstract

The utility model discloses a squatting pan and human belt cleaning device's water route switches structure thereof, and the water route switches the structure and includes: the spray pipe unit comprises a fixed spray pipe and a plurality of stages of telescopic spray pipes which are sequentially sleeved and communicated from outside to inside, and spray holes communicated with the water way are formed in the front ends of the last stage spray pipes of the plurality of stages of telescopic spray pipes; the driving unit comprises a driving part and a plurality of stages of screw rods, the number of the screw rods is the same as that of the telescopic spray pipes, the driving part drives the telescopic spray pipes of the plurality of stages to perform telescopic motion through the screw rods of the plurality of stages, and when the spray pipe unit is at an initial position, the driving part can drive the telescopic spray pipes of the plurality of stages to retract backwards to a retracted position relative to the fixed spray pipes through the screw rods of the plurality of stages; the switching assembly is arranged at the front end of the last stage spray pipe and drives the telescopic spray pipes of a plurality of stages to retract to the retraction position at every time so that the switching assembly drives the sliding piece to switch once between the first cleaning position and the second cleaning position. The utility model discloses can reduce cost, simple structure is compact.

Description

Toilet and waterway switching structure of human body cleaning device thereof

Technical Field

The utility model belongs to the technical field of the sanitary wares technique and specifically relates to a structure and have this water route and switch squatting pan of structure are switched in human belt cleaning device's of squatting pan water route.

Background

The existing intelligent toilet is generally provided with a toilet human body cleaning device, the toilet human body cleaning device generally comprises a fixed support and a spray pipe which can be telescopically arranged on the fixed support, and the spray pipe can spray cleaning water towards a human body after extending out. However, in the prior art, the spray pipes are all integrated rods, and the driving assembly for driving the spray pipes to perform telescopic movement relative to the fixed support usually adopts a gear transmission assembly or a synchronous belt transmission assembly, etc., and the driving assembly occupies a large space, so that the structure of the human body cleaning device of the toilet is not compact, and the miniaturization and low-height design of the intelligent toilet are not facilitated.

In addition, in order to make cleaning function more various, be equipped with buttockss washing water route and woman on current human belt cleaning device of squatting pan's the spray tube and wash the water route, consequently need the water route to switch the structure and wash the water route to buttockss and woman and wash the water route and switch, prior art sets up water route switching-over valve or solenoid valve at the upper reaches of spray tube usually, drives the case realization of water route switching-over valve through the motor or through the break-make of switching on and off solenoid valve control corresponding water route. The reversing valve and the electromagnetic valve have higher cost, which is not beneficial to reducing the cost and improving the product competitiveness.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention aims to provide a water path switching structure of a toilet bowl human body cleaning device and a toilet bowl having the same, which can achieve the purpose of reducing cost, and has simple and compact structure and reliable function.

In order to achieve the purpose, the utility model provides the following technical scheme:

a waterway switching structure of a human body cleaning device of a closestool comprises:

the spray pipe unit comprises a fixed spray pipe and a plurality of stages of telescopic spray pipes which are sequentially sleeved from outside to inside, wherein communicated water paths are arranged in the fixed spray pipe and the telescopic spray pipes of the stages, and spray holes communicated with the water paths are arranged at the front ends of the last stage spray pipes of the telescopic spray pipes of the stages;

the driving unit comprises a driving part and a plurality of stages of screw rods, the number of the screw rods is the same as that of the telescopic spray pipes, the driving part drives the telescopic spray pipes of the plurality of stages to perform telescopic motion through the screw rods of the plurality of stages, and when the spray pipe unit is at an initial position, the driving part can drive the telescopic spray pipes of the plurality of stages to retract backwards to a retracted position relative to the fixed spray pipe through the screw rods of the plurality of stages;

the switching subassembly is located the front end of final stage spray tube, the switching subassembly includes the slider, through at every turn drive a plurality of grades flexible spray tube is backward retracted extremely the retracted position is so that the switching subassembly drives the slider switches once and then controls between first washing position and second washing position the water route is linked together with the jet orifice of difference.

Further preferably, the switching assembly further comprises a spring structure similar to a cylindrical pen, when the last stage nozzle is retracted to the retracted position, the front end of the first stage screw of the screws of a plurality of stages directly presses or indirectly presses the button of the spring structure through the sliding member, so that when the last stage nozzle is reset to the initial position, the button of the spring structure is ejected or retracted, when the button is ejected, the sliding member is driven to slide from the first cleaning position to the second cleaning position, and when the button is retracted, the sliding member is located at the first cleaning position.

According to a further preferable scheme, the sliding piece is a sliding sleeve, a water passing hole communicated with the water channel is formed in the side wall of the sliding sleeve, the spraying hole comprises a hip washing spraying hole and a woman washing spraying hole, the sliding sleeve is located at the first washing position, the water passing hole is communicated with the woman washing spraying hole, and the sliding sleeve is located at the second washing position, the water passing hole is communicated with the hip washing spraying hole.

A further preferred scheme is, flexible spray tube includes one-level spray tube and second grade spray tube, and is corresponding, the screw rod includes one-level screw rod and second grade screw rod, the driving piece drives the one-level screw rod rotates, the one-level screw rod and then drives the second grade screw rod rotates, drive when rotating the one-level screw rod the one-level spray tube is relative fixed spray tube concertina movement, the one-level spray tube is relative drive when fixed spray tube is flexible the second grade spray tube with the second grade screw rod is relative fixed spray tube is flexible, drive when rotating the second grade screw rod the second grade spray tube is relative one-level spray tube concertina movement.

A first-stage external thread is axially arranged on the outer wall of the first-stage screw rod, the second-stage screw rod is of a hollow structure, a second-stage external thread is axially arranged on the outer wall of the second-stage screw rod, a first-stage internal thread in threaded fit with the first-stage external thread is arranged at the rear end of the first-stage spray pipe, and a second-stage internal thread in threaded fit with the second-stage external thread is arranged on the inner wall of the second-stage spray pipe; the rear end of the primary screw is in transmission connection with the driving piece, the rear end of the primary screw and the rear end of the fixed spray pipe are axially relatively limited, the rear end of the secondary screw and the rear end of the primary spray pipe are axially relatively limited, the primary spray pipe and the secondary spray pipe are in a contraction state, the thread section of the secondary screw is sleeved in the inner cavity of the secondary spray pipe, and the thread section of the primary screw is sleeved in the inner cavity of the secondary screw.

The scheme of further preferred is, the second grade internal thread is located on the inner wall of the rear end of second grade spray tube, the rear end of one-level spray tube is equipped with the one-level axle sleeve, the one-level internal thread is located on the inner wall of one-level axle sleeve, the second grade screw rod with the coaxial setting of one-level axle sleeve, the one-level screw rod passes stretch into behind the one-level axle sleeve in the inner chamber of second grade screw rod.

Further preferably, one of the outer wall of the first-stage screw and the inner wall of the second-stage screw is provided with a chute extending along the axial direction, and the other one of the outer wall of the first-stage screw and the inner wall of the second-stage screw is provided with a convex rib extending along the axial direction, and the convex rib is embedded in the chute and is in sliding fit with the chute, so that the first-stage screw and the second-stage screw are in limited fit in the circumferential direction and can be in sliding fit in the axial direction.

A further preferred scheme is that the water path can stretch along with the expansion of the first-stage spray pipe and the second-stage spray pipe, a fixed water pipe is arranged in the fixed spray pipe, a first-stage water pipe is arranged in the first-stage spray pipe, a second-stage water pipe is arranged in the second-stage spray pipe, the fixed water pipe, the first-stage water pipe and the second-stage water pipe are sequentially sleeved and communicated to form the water path, when the first-stage spray pipe stretches relative to the fixed spray pipe, the first-stage water pipe correspondingly stretches relative to the fixed water pipe, and when the second-stage spray pipe stretches relative to the first-stage spray pipe, the second-stage water pipe correspondingly stretches relative to the first-stage water pipe; alternatively, the first and second liquid crystal display panels may be,

the inner cavity of the fixed spray pipe, the inner cavity of the primary spray pipe and the inner cavity of the secondary spray pipe form the water path.

Further preferred scheme is, the water route can be flexible along with the flexible of several grades of flexible spray tube, or, the water route adopts the hose, the rear end of hose with the rear end fixed connection of fixed spray tube, the front end of hose with the last stage spray tube is connected.

Further preferably, the thread pitches of the screws of a plurality of stages are equal; the driving part is a motor capable of rotating forwards and backwards, the motor is located behind the fixed spray pipe, and an output shaft of the motor is in coaxial rotation linkage fit with the rear ends of the first-stage screw rods of the plurality of stages of screw rods.

A further preferred scheme is that the spraying device further comprises a position sensor and a controller, the driving piece is a motor, the controller is electrically connected with the motor and the position sensor respectively, the position sensor is used for sensing the position of the sliding piece, the controller judges the communication state of the water path and the spraying hole according to a position signal obtained by the position sensor, and controls whether the spraying pipe unit retracts backwards before extending forwards relative to the fixed support or not according to a user instruction.

The controller can memorize the position of the sliding piece of the switching assembly to form memory information when the previous nozzle unit is reset to the initial position, and the controller controls whether the nozzle unit retracts backwards before extending forwards relative to the fixed support or not according to the instruction of a user and the memory information.

Furthermore, the utility model also provides a squatting pan, including the pedestal of squatting pan, the apron of squatting pan and the human belt cleaning device of squatting pan, a serial communication port, the human belt cleaning device of squatting pan includes above-mentioned arbitrary the human belt cleaning device's of squatting pan water route switching structure.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a human belt cleaning device of squatting pan adopts multistage spray tube (including fixed spray tube and a plurality of grades of flexible spray tubes), can stretch out and draw back relatively between each grade of spray tube to make spray tube unit occupy less space on the axial under the contraction state, saved the axial space of the human belt cleaning device of squatting pan; furthermore, the utility model discloses a flexible spray tube concertina movement at different levels of multistage screw drive, spray tube and screw rod all along the direction axial extension that stretches out and draws back to make human belt cleaning device of squatting pan footpath littleer in footpath. Therefore, the utility model discloses simple structure, compactness can reduce the space that whole device occupy greatly, are favorable to intelligent squatting pan miniaturization, dwarfing design etc..

The utility model discloses a front end at the last stage spray tube sets up switching module, and switching module includes the slider, through at every turn drive a plurality of levels flexible spray tube is retracted to backward the indentation position so that switching module drives the slider is once and then control in first washing position and second washing position the water route is linked together with different jet orifices, realizes the switching in water route, just so need not motor or solenoid valve and switches the water route, but realizes the water route through mechanical structure and switches, has practiced thrift the cost, is favorable to improving product competition advantage.

The switching component comprises a spring pressing structure similar to a cylindrical pen, and the switching structure is simple and easy to realize.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a perspective assembly view of an embodiment of the present invention, with the primary and secondary nozzles in an extended position;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 illustrates a cross-sectional view of an embodiment of the present invention with the nozzle unit in the initial position and the slide in the first cleaning position (bidet position);

FIG. 4 is a cross-sectional view of an embodiment of the present invention with the primary and secondary nozzles retracted to a retracted position relative to the stationary nozzle;

FIG. 5 is a cross-sectional view of an embodiment of the present invention with the spout unit in the initial position and the slider in the second cleaning position (hip-washing position);

FIG. 6 is a top view of one embodiment of the present invention showing the primary and secondary nozzles in an extended position with the slider in the first cleaning position (bidet position);

FIG. 7 is a second top view of the first stage nozzle and the second stage nozzle in an extended position, wherein the slider is in the first cleaning position (bidet position), in accordance with an embodiment of the present invention;

FIG. 8 is a third top view of the first stage nozzle and the second stage nozzle in an extended position, wherein the slider is in a second cleaning position (hip cleaning position), in accordance with an embodiment of the present invention;

fig. 9 is an exploded perspective view of a switching assembly according to an embodiment of the present invention;

fig. 10 is a perspective view of a primary shaft sleeve according to an embodiment of the present invention;

fig. 11 is a perspective view of a secondary nozzle according to an embodiment of the present invention;

fig. 12 is a perspective view of a primary screw according to an embodiment of the present invention;

fig. 13 is a perspective view of a two-stage screw according to an embodiment of the present invention;

FIG. 14 is a cross-sectional view of a two-stage screw according to an embodiment of the present invention;

fig. 15 is a schematic view showing the human body cleaning device of the toilet of the present invention mounted on the toilet.

The reference signs are:

1-seat body of toilet seat;

2-cover plate of toilet seat;

3-human body cleaning device of toilet bowl:

10-fixing the spray pipe; 12-water inlet joint; 13-fixing the shaft sleeve; 14-a first limit bump;

20-a primary spray pipe; 21-first-stage internal threads; 22-primary shaft sleeve; 221-primary overflow hole; 23-a first limit groove; 24-a second limit bump;

30-a secondary spray pipe; 31-secondary internal threads; 311-secondary overflow groove; 32-an injection hole; 321-hip washing spray hole; 322-FUXIEYE; 34-a second limiting groove;

40-a motor; 41-output shaft of motor;

50-first-stage screw; 51-primary external thread; 52-a chute;

60-a secondary screw; 61-secondary external threads; 62-convex ribs;

70-a baffle plate;

80-a scaffold;

91-primary sealing ring; 92-secondary sealing ring;

100-switching component: 101-a slide; 1011-water passing hole; 102-snap configuration; 1021-push buttons.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 14, an embodiment of the present invention provides a compact bidet body cleaning device, including a nozzle unit, a driving unit, and a switching unit 100.

The telescopic structure and the working process thereof are explained in detail as follows:

referring to fig. 1, 2, 7 and 8, the nozzle unit includes a fixed nozzle 10 and a plurality of stages of telescopic nozzles sequentially sleeved from outside to inside. The fixed nozzle 10 and the plurality of stages of telescopic nozzles are provided with water paths (see dotted lines with arrows in fig. 7 and 8) communicated with each other, and the front end of the last stage nozzle of the plurality of stages of telescopic nozzles is provided with a spray hole 32 communicated with the water paths, and the spray hole 32 is used for spraying water towards the human body. Specifically, in this embodiment, the telescopic nozzle has two stages, each including a first stage nozzle 20 and a second stage nozzle 30, the second stage nozzle 30 is a last stage nozzle, and the front end of the second stage nozzle 30 is provided with a spray hole 32 communicated with the water path.

Referring to fig. 2 and 3, the driving unit includes a driving member and a plurality of stages of screws, the number of the screws is the same as that of the telescopic nozzles, and the driving member drives the telescopic nozzles of the plurality of stages to move telescopically through the plurality of stages of screws. Specifically, in this embodiment, two stages of screws are provided corresponding to the two stages of telescopic nozzles, and each screw includes a first-stage screw 50 and a second-stage screw 60, where the first-stage screw 50 is a first-stage screw. The driving piece drives the first-stage screw rod 50 to rotate, the first-stage screw rod 50 further drives the second-stage screw rod 60 to rotate, the first-stage screw rod 50 drives the first-stage spray pipe 20 to move in a telescopic mode relative to the fixed spray pipe 10 when stretching, the first-stage spray pipe 20 drives the second-stage spray pipe 30 and the second-stage screw rod 60 to move in a telescopic mode relative to the fixed spray pipe 10 when stretching, and the second-stage screw rod 60 drives the second-stage spray pipe 30 to move in a telescopic mode relative to the first-stage spray pipe 20 when rotating. Preferably, the thread pitch on the primary screw 50 and the secondary screw 60 are equal.

In this embodiment, a first-stage external thread 51 is axially disposed on an outer wall of the first-stage screw 50. The second-stage screw rod 60 is of a hollow structure, and a second-stage external thread 61 is axially arranged on the outer wall of the second-stage screw rod 60. The rear end of the primary nozzle 20 is provided with primary internal threads 21 which are in threaded fit with the primary external threads 51. The inner wall of the secondary nozzle 30 is provided with a secondary internal thread 31 matched with the secondary external thread 61. The rear end of the first-stage screw 50 is in transmission connection with the driving part, the rear end of the first-stage screw 50 and the rear end of the fixed nozzle 10 are axially relatively limited, that is, the first-stage screw 50 and the fixed nozzle 10 can rotate relatively in the circumferential direction but are axially relatively limited, and the first-stage screw 50 cannot move axially relative to the fixed nozzle 10. The rear end of the secondary screw 60 and the rear end of the primary nozzle 20 are axially relatively limited, the secondary screw 60 and the primary nozzle 20 can rotate relatively in the circumferential direction but are axially relatively limited, and the secondary screw 60 cannot move axially relative to the primary nozzle 20. Under the condition that the primary spray pipe 20 and the secondary spray pipe 30 are in a contraction state, the thread section of the secondary screw rod 60 is sleeved in the inner cavity of the secondary spray pipe 30, and the thread section of the primary screw rod 50 is sleeved in the inner cavity of the secondary screw rod 60, so that the structure is further more compact.

Referring to fig. 2 and 3, in particular, the rear end of the secondary screw 60 is axially restrained relative to the rear end of the primary nozzle 20 by a stop 70. The flap 70 is fixedly connected to the rear end of the primary nozzle 20. Preferably, the rear end of the secondary screw 60 is fitted outside the portion of the primary sleeve 22 having the primary female screw 21, which will be described later.

Referring to fig. 2, 3, 10 and 11, in the present embodiment, the secondary internal thread 31 is provided on the inner wall of the rear end of the secondary nozzle 30, and a secondary overflow groove 311 (see fig. 11) is provided on the secondary internal thread 31 in the axial direction, so that water in the primary nozzle 20 enters the secondary nozzle 30 through the secondary overflow groove 311. The rear end of one-level spray tube 20 is fixed and is equipped with one-level axle sleeve 22, and one-level internal thread 21 is located on one-level axle sleeve 22's the inner wall to be equipped with one-level overflow hole 221 on the one-level axle sleeve 22, the rivers of fixed spray tube 10 via in one-level overflow hole 221 enters into one-level spray tube 20, be equipped with on one-level axle sleeve 22's the outer wall with the sealed complex one-level sealing washer 91 of the inner wall of fixed spray tube 10, be equipped with on the outer wall of second grade spray tube 30 with the sealed complex second grade sealing washer 92 of the inner wall of one-level spray tube 20. The secondary screw rod 60 and the primary shaft sleeve 22 are coaxially arranged, and the primary screw rod 50 penetrates through the primary shaft sleeve 22 and then extends into the inner cavity of the secondary screw rod 60, so that the structure is further more compact. Wherein, the first-stage shaft sleeve 22 can be fixedly connected with the first-stage nozzle 20 after being integrally formed or separately formed.

Referring to fig. 12 and 13, in the present embodiment, one of an outer wall of the first-stage screw 50 and an inner wall of the second-stage screw 60 is provided with a sliding groove 52 extending along the axial direction, and the other of the outer wall of the first-stage screw 50 and the inner wall of the second-stage screw 60 is provided with a protruding rib 62 extending along the axial direction, and the protruding rib 62 is embedded in the sliding groove 52 and slidably fits along the sliding groove 52, so that the first-stage screw 50 and the second-stage screw 60 are in limited fit in the circumferential direction and can be slidably fitted in the axial direction, and further the first-stage screw 50 and the second-stage screw 60 can axially slide relatively, and simultaneously the first-stage screw 50 can drive the second-stage screw 60 to synchronously rotate when rotating. Specifically, the outer wall of the first-stage screw 50 is provided with a sliding groove 52, and the inner wall of the second-stage screw 60 is provided with a convex rib 62.

Referring to fig. 3 and 7, in the embodiment, the waterway can be extended and retracted along with the extension and retraction of the primary nozzle 20 and the secondary nozzle 30, and the specific implementation manner is as follows: the inner cavity of the fixed nozzle 10, the inner cavity of the primary nozzle 20 and the inner cavity of the secondary nozzle 30 form the water path, and the specific water flow path is as shown in fig. 7 and 8, water in the inner cavity of the fixed nozzle 10 enters the inner cavity of the primary nozzle 20 through the primary overflowing hole 221 on the primary shaft sleeve 22, then enters the inner cavity of the secondary nozzle 30 through the secondary overflowing groove 311 on the secondary internal thread 31, and finally is sprayed out from the spraying hole 32 at the front end of the secondary nozzle 20. Of course, in other embodiments, it is also possible to employ: a fixed water pipe (not shown) is arranged in the fixed spray pipe 10, a primary water pipe (not shown) is arranged in the primary spray pipe 20, and a secondary water pipe (not shown) is arranged in the secondary spray pipe 30; the fixed water pipe, the primary water pipe and the secondary water pipe are sequentially sleeved and communicated to form a water path, and when the primary spray pipe 20 stretches relative to the fixed spray pipe 10, the primary water pipe stretches corresponding to the fixed water pipe; when the secondary nozzle 30 is extended and retracted relative to the primary nozzle 20, the secondary water pipe is extended and retracted relative to the primary water pipe.

Referring to fig. 2, 7 and 8, in the present embodiment, the fixed nozzle 10 is further provided with a water inlet connector 12 communicated with the inner cavity of the fixed nozzle 10, the water inlet connector 12 is communicated with a water source, the water inlet connector 12 is located outside the fixed nozzle 10, and the water inlet connector 12 and the fixed nozzle 10 are formed separately. Of course, in other embodiments, the water inlet 12 may be formed integrally with the fixed nozzle 10.

Referring to fig. 3 to 5, in the present embodiment, the inner wall of the fixed nozzle 10 is provided with a first limiting protrusion 14, the outer wall of the primary nozzle 20 is provided with a first limiting groove 23 along the axial direction, and the first limiting protrusion 14 is embedded in the first limiting groove 23 and slides along the first limiting groove 23; the inner wall of the first-stage spray pipe 20 is provided with a second limiting bump 24, the outer wall of the second-stage spray pipe 30 is provided with a second limiting groove 34 along the axial direction, the second limiting bump 24 is embedded into the second limiting groove 34 and slides along the second limiting groove 34, so that the fixed spray pipe 10, the first-stage spray pipe 20 and the second-stage spray pipe 30 are limited in the circumferential direction, the fixed spray pipe 10, the first-stage spray pipe 20 and the second-stage spray pipe 30 are prevented from rotating, and the three can only slide relatively in the axial direction. Of course, in other embodiments, the cross-sectional shapes of the inner cavities of the fixed nozzle 10, the primary nozzle 20, and the secondary nozzle 30 in the radial direction may also be non-circular, so that the purpose of forming mutual limiting on the fixed nozzle 10, the primary nozzle 20, and the secondary nozzle 30 in the circumferential direction can also be achieved, and the fixed nozzle 10, the primary nozzle 20, and the secondary nozzle 30 are prevented from rotating, so that the fixed nozzle 10, the primary nozzle 20, and the secondary nozzle 30 can only slide relatively in the axial direction.

Referring to fig. 1 and 4, in the present embodiment, the driving member is a motor 40 capable of rotating forward and backward, the motor 40 is located behind the fixed nozzle 10, and an output shaft 41 of the motor 40 is coaxially and rotationally coupled with a rear end of the primary screw 50. Specifically, the rear end of the fixed nozzle 10 is provided with a fixed shaft sleeve 13, and the rear end of the primary screw 50 extends out of the fixed shaft sleeve 13 to be in rotational transmission connection with the output shaft 41 of the motor 40.

In this embodiment, the fixed nozzle 10 and the bracket 80 are integrally formed and fixedly connected, but the fixed nozzle 10 and the bracket 80 may also be separately formed and fixedly connected. The motor 40 is also fixedly connected to the bracket 80.

In this embodiment, the injection holes 32 are formed in the top wall of the front end of the secondary nozzle 30.

The telescopic process of the nozzle unit in the embodiment is as follows:

referring to fig. 3 and 5, the nozzle unit is in the initial position, i.e., the secondary nozzle 30 is retracted into the primary nozzle 20 and the primary nozzle 20 is retracted into the stationary nozzle 10;

when the motor 40 rotates forward, the output shaft 41 of the motor 40 drives the first-stage screw 50 to rotate forward, the first-stage spray pipe 20 extends relative to the fixed spray pipe 10 under the matching action of the first-stage external threads 51 on the first-stage screw 50 and the first-stage internal threads 21 on the first-stage spray pipe 20, and the first-stage spray pipe 20 drives the second-stage spray pipe 30 and the second-stage screw 60 to extend relative to the fixed spray pipe 10 in the process that the first-stage spray pipe 20 extends relative to the fixed spray pipe 10. Meanwhile, when the primary screw 50 rotates forwards, the secondary screw 60 is also driven to rotate forwards, and under the matching action of the secondary external threads 61 on the secondary screw 60 and the secondary internal threads 31 on the secondary spray pipe 30, the secondary spray pipe 30 extends out relative to the primary spray pipe 20, as shown in fig. 1, 6, 7 and 8, at this time, the primary spray pipe 20 and the secondary spray pipe 30 both extend out in place, and the spray hole 32 at the front end of the secondary spray pipe 30 is exposed out of the primary spray pipe 20 so as to be capable of spraying water aiming at a human body;

when the motor 40 rotates reversely, the output shaft 41 of the motor 40 drives the primary screw 50 to rotate reversely, and the primary spray pipe 20 retracts relative to the fixed spray pipe 10 under the matching action of the primary external thread 51 on the primary screw 50 and the primary internal thread 21 on the primary spray pipe 20. Meanwhile, when the first-stage screw 50 rotates reversely, the second-stage screw 60 is also driven to rotate reversely, the second-stage spray pipe 30 retracts relative to the first-stage spray pipe 20 under the matching action of the second-stage external threads 61 on the second-stage screw 60 and the second-stage internal threads 31 on the second-stage spray pipe 30, so that the initial position shown in fig. 3 and 5 is returned, at the moment, the spray hole 32 at the front end of the second-stage spray pipe 30 retracts into the first-stage spray pipe 20, and therefore the spray hole 32 is not easy to store dirt and contain dirt, and is more sanitary.

In other embodiments, a three-stage telescopic nozzle and a three-stage screw, a four-stage telescopic nozzle and a four-stage screw, a five-stage telescopic nozzle and a five-stage screw, etc. may also be used, which are not limited to the two-stage telescopic nozzle and the two-stage screw in the embodiments.

In other embodiments, a hose (not shown) may be directly used as the water path, the rear end of the hose is fixedly connected to the rear end of the fixed nozzle 10, and the front end of the hose is connected to the secondary nozzle 30.

The switching structure and its working process are explained in detail as follows:

when the nozzle unit is at the initial position, the driving member can drive the telescopic nozzle of the plurality of stages to retract to the retracted position relative to the fixed nozzle 10 through the screws of the plurality of stages, and specifically, the motor 40 can drive the first-stage nozzle 20 and the second-stage nozzle 30 to retract to the retracted position relative to the fixed nozzle 10 through the first-stage screw 50 and the second-stage screw 60, respectively (see fig. 4). The switching assembly 100 is disposed at the front end of the secondary nozzle 30, and the switching assembly 100 is driven to switch the waterway by retracting the secondary nozzle 30 to the retracted position.

Referring to fig. 1, 3, 4, 5 and 9, the switching assembly 100 includes a sliding member 101, and the switching assembly 100 drives the sliding member 101 to switch between the first cleaning position and the second cleaning position once by driving the stages of the telescopic nozzles to retract to the retracted position each time, so as to control the water path to communicate with different spraying holes 32.

In this embodiment, referring to fig. 9, the switching assembly 100 further includes a spring structure 102 similar to a cylindrical pen, and each time the secondary nozzle 30 retracts to the retracted position, the front end of the primary screw 50 directly presses or indirectly presses the button 1021 of the spring structure 102 through the sliding member 101, so that the button 1021 of the spring structure 102 is ejected or retracted when the secondary nozzle 30 is reset to the initial position. The snap structure 102 may be formed using known techniques and will not be described in detail herein.

As shown in fig. 5, when the button 1021 is popped up, the slider 101 is driven to slide from the first cleaning position to the second cleaning position; as shown in fig. 3, when the button is retracted, the slide 101 is in the first cleaning position. Specifically, in this embodiment, the sliding member 101 is a sliding sleeve, the side wall of the sliding sleeve is provided with a water through hole 1011 communicating with the water path, the injection hole 32 includes a hip washing injection hole 321 and a woman washing injection hole 322, when the sliding sleeve is located at the first washing position, the water through hole 1011 communicates with the woman washing injection hole 322, and when the sliding sleeve is located at the second washing position, the water through hole 1011 communicates with the hip washing injection hole 321.

In this embodiment, the sliding device further includes a position sensor (not shown) and a controller (not shown), the controller is electrically connected to the motor and the position sensor, the position sensor is used for sensing the position of the sliding member, and the position sensor may be hall sensor, capacitive sensor, inductive sensor, infrared sensor, or the like. The controller judges the communication state of the water path and the spray hole according to the position signal obtained by the position sensor, and controls whether the spray pipe unit retracts backwards before extending forwards relative to the fixed support or not according to the instruction of a user.

In this embodiment, when the human body is washed, whether the waterway switching of the switching assembly 100 is required or not may be judged and controlled by using the following waterway switching method, which includes the following steps:

s1: acquiring a user command and a position of a slider of the switching assembly when the nozzle unit is at the initial position by the controller, performing step S2 when the controller determines that the spray hole communicated with the water path matches the user command, and performing step S3 when the controller determines that the spray hole communicated with the water path does not match the user command;

s2: the controller controls the driving piece to enable the spray pipe unit to directly extend forwards;

s3: the controller firstly controls the driving piece to enable the spray pipe unit to retract backwards to drive the switching component to switch, and then controls the driving piece to enable the spray pipe unit to extend forwards.

The switching operation process of this embodiment is briefly described as follows:

referring to fig. 3, when the nozzle unit is at the initial position, the nozzle unit is not extended or retracted relative to the fixed bracket 10, the button 1021 of the switching assembly 100 is retracted, the slider 101 is at the first cleaning position, and the water through holes 1011 of the slider 101 are communicated with the bidet injection holes 322, that is, the water path is communicated with the bidet injection holes 322. When cleaning is started, the position of the sliding part 101 is sensed by the position sensor, the position sensor sends a position signal of the sliding part 101 to the controller, the controller further judges the communication state of the water path and the injection hole 32 according to the position signal obtained by the position sensor, so that whether the injection hole 32 communicated with the water path is matched with a corresponding function (hip washing function or woman washing function) selected by a user is judged, and if the two are matched (for example, the water path is communicated with the hip washing injection hole 321, and the hip washing function is selected by the user), the motor 40 directly drives the spray pipe unit to extend forwards relative to the fixed support 10 to perform cleaning of the corresponding function; if the two are not matched (for example, the water path is communicated with the hip washing spraying hole 321, and the user selects the bidet function), the motor 40 is controlled to retract the nozzle unit backward to drive the switching assembly 100 to switch the water path, and then the motor 40 is controlled to extend the nozzle unit forward to clean the corresponding function.

Referring to fig. 4, when the user command is a hip washing command, the communication state of the water path and the bidet spray holes 322 is not matched with the user command, and thus the water path needs to be switched, the motor 40 drives the nozzle unit to move backward (as shown by the arrow direction in fig. 4) relative to the fixed bracket 10, so that the secondary nozzle 30 retracts to the retracted position, and the front end of the primary screw 50 indirectly presses the button 1021 of the pop-up structure 102 through the sliding member 101, so that the button 1021 of the pop-up structure 102 pops up;

as shown in fig. 5, when the button 1021 is popped up, the slider 101 is driven to slide from the first cleaning position to the second cleaning position, so that the water path is communicated with the hip-washing spraying hole 321, and the water in the water path is sprayed out through the hip-washing spraying hole 321 to realize the hip-washing function.

In other embodiments, the position sensor may not be provided, so that the controller can memorize the position of the sliding member of the switching assembly when the previous nozzle unit is reset to the initial position to form memory information, and the controller controls whether the nozzle unit retracts backwards before extending forwards relative to the fixed support according to the instruction of the user and the memory information, thereby also realizing the judgment of whether the waterway switching is performed.

Referring to fig. 15, the third embodiment of the present invention further provides a toilet, which includes a toilet body 1, a toilet cover plate 2, and a toilet body cleaning device 3, wherein the toilet body cleaning device 3 is disposed on the toilet cover plate 2, the toilet body cleaning device 3 includes any one of the above-mentioned water path switching structures of the toilet body cleaning device, and the water path switching method is adopted to switch the water path.

Fig. 15 is a schematic view showing the nozzle unit of the bidet body washing device 3 in an extended state where the bidet body washing device 3 can spray a human body.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (13)

1. A water path switching structure of a toilet bowl human body cleaning device is characterized by comprising:

the spray pipe unit comprises a fixed spray pipe and a plurality of stages of telescopic spray pipes which are sequentially sleeved from outside to inside, wherein communicated water paths are arranged in the fixed spray pipe and the telescopic spray pipes of the stages, and spray holes communicated with the water paths are arranged at the front ends of the last stage spray pipes of the telescopic spray pipes of the stages;

the driving unit comprises a driving part and a plurality of stages of screw rods, the number of the screw rods is the same as that of the telescopic spray pipes, the driving part drives the telescopic spray pipes of the plurality of stages to perform telescopic motion through the screw rods of the plurality of stages, and when the spray pipe unit is at an initial position, the driving part can drive the telescopic spray pipes of the plurality of stages to retract backwards to a retracted position relative to the fixed spray pipe through the screw rods of the plurality of stages;

the switching subassembly is located the front end of final stage spray tube, the switching subassembly includes the slider, through at every turn drive a plurality of grades flexible spray tube is backward retracted extremely the retracted position is so that the switching subassembly drives the slider switches once and then controls between first washing position and second washing position the water route is linked together with the jet orifice of difference.

2. The waterway switching structure of the personal washing device of the toilet of claim 1, wherein the switching assembly further comprises a spring structure similar to a cylindrical pen, and each time the final stage nozzle is retracted to the retracted position, the front end of the first stage screw of the several stages of screws directly presses or indirectly presses the button of the spring structure through the sliding member, so that the button of the spring structure is ejected or retracted when the final stage nozzle is reset to the initial position, the button is ejected to drive the sliding member to slide from the first washing position to the second washing position, and when the button is retracted, the sliding member is located at the first washing position.

3. The waterway switching structure of the human body cleaning device for the toilet according to claim 1, wherein the sliding member is a sliding sleeve, a water passing hole communicated with the waterway is formed in a side wall of the sliding sleeve, the spraying holes include a hip washing spraying hole and a woman washing spraying hole, the water passing hole is communicated with the woman washing spraying hole when the sliding sleeve is located at the first cleaning position, and the water passing hole is communicated with the hip washing spraying hole when the sliding sleeve is located at the second cleaning position.

4. The water path switching structure of a human body cleaning device of a toilet according to claim 1, wherein the telescopic nozzle comprises a first-stage nozzle and a second-stage nozzle, and the screw comprises a first-stage screw and a second-stage screw, the driving member drives the first-stage screw to rotate, the first-stage screw further drives the second-stage screw to rotate, the first-stage screw drives the first-stage nozzle to move relative to the fixed nozzle in a telescopic manner, the first-stage nozzle drives the second-stage nozzle and the second-stage screw to move relative to the fixed nozzle in a telescopic manner when the first-stage nozzle is telescopic relative to the fixed nozzle, and the second-stage screw drives the second-stage nozzle to move relative to the first-stage nozzle in a telescopic manner when the second-stage screw rotates.

5. The water path switching structure of the toilet human body cleaning device according to claim 4, wherein a first-stage external thread is axially arranged on the outer wall of the first-stage screw, the second-stage screw is of a hollow structure, a second-stage external thread is axially arranged on the outer wall of the second-stage screw, a first-stage internal thread in threaded fit with the first-stage external thread is arranged at the rear end of the first-stage spray pipe, and a second-stage internal thread in threaded fit with the second-stage external thread is arranged on the inner wall of the second-stage spray pipe; the rear end of one-level screw rod with the driving piece transmission is connected, the rear end of one-level screw rod with the rear end of fixed spray tube is relative spacing in the axial, the rear end of second grade screw rod with the rear end of one-level spray tube is relative spacing in the axial, one-level spray tube and second grade spray tube are in under the contraction state, the screw thread section cover of second grade screw rod is established in the inner chamber of second grade spray tube, the screw thread section cover of one-level screw rod is established in the inner chamber of second grade screw rod.

6. The waterway switching structure of the human body cleaning device for the toilet according to claim 5, wherein the secondary internal thread is arranged on the inner wall of the rear end of the secondary spray pipe, the rear end of the primary spray pipe is provided with a primary shaft sleeve, the primary internal thread is arranged on the inner wall of the primary shaft sleeve, the secondary screw rod is coaxially arranged with the primary shaft sleeve, and the primary screw rod penetrates through the primary shaft sleeve and then extends into the inner cavity of the secondary screw rod.

7. The waterway switching structure of a human body cleaning device of a toilet according to claim 5, wherein one of the outer wall of the primary screw and the inner wall of the secondary screw is provided with a chute extending along the axial direction, and the other of the outer wall of the primary screw and the inner wall of the secondary screw is provided with a rib extending along the axial direction, the rib is embedded in the chute and is in sliding fit along the chute, so that the primary screw and the secondary screw are in limited fit in the circumferential direction and can be in sliding fit in the axial direction.

8. The water path switching structure of the human body cleaning device for the toilet according to claim 5, wherein the water path can stretch along with the expansion of the primary spray pipe and the secondary spray pipe, a fixed water pipe is arranged in the fixed spray pipe, a primary water pipe is arranged in the primary spray pipe, a secondary water pipe is arranged in the secondary spray pipe, the fixed water pipe, the primary water pipe and the secondary water pipe are sequentially sleeved and communicated to form the water path, when the primary spray pipe stretches relative to the fixed spray pipe, the primary water pipe stretches relative to the fixed water pipe, and when the secondary spray pipe stretches relative to the primary spray pipe, the secondary water pipe stretches relative to the primary water pipe; alternatively, the first and second electrodes may be,

the inner cavity of the fixed spray pipe, the inner cavity of the primary spray pipe and the inner cavity of the secondary spray pipe form the water path.

9. The waterway switching structure of the toilet bowl human body cleaning device according to claim 1, wherein the waterway is capable of extending and contracting with the extension and contraction of the telescopic spray pipes of a plurality of stages, or the waterway adopts a hose, the rear end of the hose is fixedly connected with the rear end of the fixed spray pipe, and the front end of the hose is connected with the final stage spray pipe.

10. The waterway switching structure of the toilet bowl human body cleaning device according to claim 1, wherein thread pitches of the screws of the plurality of stages are equal; the driving part is a motor capable of rotating forwards and backwards, the motor is located behind the fixed spray pipe, and an output shaft of the motor is in coaxial rotation linkage fit with the rear ends of the first-stage screw rods of the plurality of stages of screw rods.

11. The waterway switching structure of the human body cleaning device for the toilet according to claim 1, wherein the nozzle unit extends forwards or retracts backwards relative to the fixed bracket, the waterway switching structure further comprises a position sensor and a controller, the driving member is a motor, the controller is electrically connected with the motor and the position sensor respectively, the position sensor is used for sensing the position of the sliding member, the controller judges the communication state of the waterway and the spray hole according to a position signal obtained by the position sensor, and controls whether the nozzle unit retracts backwards before extending forwards relative to the fixed bracket according to a user instruction.

12. The waterway switching structure of a human body cleaning device for a toilet according to claim 1, wherein the nozzle unit is moved forward or backward relative to the fixed bracket, and further comprising a controller, the driving member is a motor, the motor is electrically connected to the controller, the controller can memorize the position of the sliding member of the switching assembly to form memory information when the previous nozzle unit is reset to the initial position, and the controller controls whether the nozzle unit is moved backward or backward before being moved forward relative to the fixed bracket according to the instruction of the user and the memory information.

13. A toilet bowl comprising a toilet bowl body, a toilet bowl cover plate and a toilet bowl body cleaning device, characterized in that the toilet bowl body cleaning device comprises the waterway switching structure of the toilet bowl body cleaning device according to any one of claims 1 to 12.

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