CN114411902A

CN114411902A - Toilet and waterway switching structure and waterway switching method of human body cleaning device of toilet

Info

Publication number: CN114411902A
Application number: CN202210093861.3A
Authority: CN
Inventors: 谢伟藩; 陈雪瑜
Original assignee: Guli Xiamen Technology Co Ltd
Current assignee: Guli Xiamen Technology Co Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-04-29

Abstract

The invention discloses a water way switching structure and a water way switching method of a toilet bowl and a human body cleaning device thereof, wherein the water way switching structure comprises the following components: 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 plurality of stages of telescopic spray pipes, and spray holes communicated with the water paths are arranged at 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 through the screw rods of the plurality of stages; the switching assembly is arranged at the front end of the final-stage spray pipe and comprises a switching piece, and the telescopic spray pipes driving a plurality of stages retract backwards to retracted positions to drive the switching piece to switch and move so as to control the water path to be communicated with different spray holes.

Description

Toilet and waterway switching structure and waterway switching method of human body cleaning device of toilet

Technical Field

The invention relates to the technical field of sanitary wares, in particular to a waterway switching structure and a waterway switching method of a human body cleaning device of a closestool and the closestool with the waterway switching structure or the waterway switching method.

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.

Disclosure of Invention

In view of the above, the present invention is directed to a water path switching structure and a water path switching method of a toilet body cleaning device, and a toilet having the same, which can achieve the purpose of reducing cost, and has a simple and compact structure and reliable functions.

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

a waterway switching structure of a toilet bowl human body cleaning device 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 assembly is arranged at the front end of the final stage spray pipe and comprises a switching piece, and the telescopic spray pipes of a plurality of stages are driven to retract backwards to the retraction positions so as to drive the switching piece to switch and move, so that the water way is controlled to be communicated with different spray holes. .

Further preferably, the switching assembly further comprises a spring pressing structure similar to a cylindrical pen, and when the last stage nozzle is retracted to the retracted position each time, the front end of the first stage screw of the screws of the plurality of stages presses the button of the spring pressing structure once, so that the spring pressing structure drives the switching piece to perform switching movement once.

The switching piece is a rotatable rotating piece, the telescopic spray pipes of a plurality of stages retract to the retracting position and reset to the initial position each time, and the switching assembly drives the rotating piece to rotate by a preset angle so as to control the water path to be communicated with different spray holes.

A further preferred scheme is that the rotating piece is a water diversion piece, the water diversion piece is provided with a water passing hole communicated with an inner cavity of the last-stage spray pipe, the inner cavity of the last-stage spray pipe forms a part of the water path, the switching assembly further comprises a water passing seat fixedly arranged in the front end of the last-stage spray pipe, the water passing seat is provided with water passing channels with the same number as the spraying holes, the water outlet ends of the water passing channels are communicated with the corresponding spraying holes, and when the water diversion piece rotates, the water passing hole is communicated with the water inlet ends of the water passing channels in a switching manner.

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 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.

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.

A further preferred scheme is that one of the outer wall of the first-stage screw and the inner wall of the second-stage screw is provided with a sliding groove 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 sliding groove and is in sliding fit with the sliding groove, 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; or,

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 respectively electrically connected with the motor and the position sensor, the position sensor is used for sensing the position of the rotating 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 nozzle unit is provided with a driving part, a switching component and a fixed support, wherein the driving part is a motor, the motor is electrically connected with the controller, the controller can memorize the position of a rotating part of the switching component to form memory information when the nozzle unit is reset to the initial position at the previous time, 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.

In addition, the invention also provides a water path switching method of the toilet bowl human body cleaning device, which adopts the water path switching structure of any one of the toilet bowl human body cleaning devices, and the water path switching method comprises the following steps:

s1: acquiring a user instruction and the position of the rotating member of the switching assembly when the nozzle unit is at the initial position by the controller, executing step S2 when the controller judges that the spray hole communicated with the water path is matched with the user instruction, and executing step S3 when the controller judges that the spray hole communicated with the water path is not matched with the user instruction;

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.

In addition, the invention also provides a toilet bowl, which comprises a toilet bowl body, a toilet bowl cover plate and a toilet bowl human body cleaning device, and is characterized in that the toilet bowl human body cleaning device comprises the water path switching structure of any one of the toilet bowl human body cleaning devices, or the toilet bowl human body cleaning device adopts the water path switching method.

Compared with the prior art, the invention has the beneficial effects that:

the human body cleaning device of the toilet adopts the multi-stage spray pipes (comprising the fixed spray pipes and the plurality of stages of telescopic spray pipes), and the spray pipes at all stages can be relatively telescopic, so that the spray pipe units occupy smaller space in the axial direction under the contraction state, and the axial space of the human body cleaning device of the toilet is saved; in addition, the multi-stage screw rod is adopted to drive the telescopic spray pipes at all stages to do telescopic motion, and the spray pipes and the screw rods both axially extend along the telescopic direction, so that the space occupied by the human body cleaning device of the toilet bowl in the radial direction is smaller. Therefore, the intelligent closestool is simple and compact in structure, can greatly reduce the space occupied by the whole device, and is beneficial to miniaturization, low-height design and the like of the intelligent closestool.

According to the invention, the switching assembly is arranged at the front end of the last stage spray pipe and comprises the switching piece, the switching piece is driven to retract backwards to the retraction position by driving the telescopic spray pipes of a plurality of stages to drive the switching piece to switch and further control the water path to be communicated with different spray holes, so that the switching of the water path is realized, the water path switching is realized through a mechanical structure without the need of switching the water path by a motor or an electromagnetic valve, the cost is saved, and the competitive advantage of the product is favorably improved.

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 included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

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

FIG. 3 depicts a cross-sectional view of an embodiment of the invention with the nozzle unit in an initial 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 depicts a cross-sectional view of an embodiment of the invention with the nozzle unit in an extended state;

FIG. 6 is a cross-sectional view of an embodiment of the present invention with the spout unit in an extended position and the buttocks washing aperture emitting water;

FIG. 7 is an enlarged view taken at A in FIG. 6;

FIG. 8 illustrates a partial cross-sectional view of one embodiment of the present invention showing the outlet of water from the female irrigation spray holes;

FIG. 9 is a partial cross-sectional view showing the discharge of water from the enema injection hole according to one embodiment of the present invention;

FIG. 10 is a perspective assembly view of the switching assembly according to one embodiment of the present invention;

FIG. 11 is a perspective view of a water diversion sheet according to an embodiment of the present invention;

FIG. 12 is a perspective view of a water passing base according to an embodiment of the invention;

FIG. 13 is a perspective view of the housing of the spring-clip structure according to one embodiment of the present invention;

FIG. 14 is a perspective view of a rotor with a snap structure according to an embodiment of the present invention;

FIG. 15 is a perspective view of a button with a spring structure according to an embodiment of the present invention;

FIG. 16 is a perspective view of a primary shaft sleeve according to an embodiment of the invention;

FIG. 17 is a perspective view of a secondary nozzle in accordance with one embodiment of the present invention;

FIG. 18 is a perspective view of a primary screw according to one embodiment of the present invention;

FIG. 19 is a perspective view of a two-stage screw according to one embodiment of the present invention;

FIG. 20 depicts a cross-sectional view of a two-stage screw according to an embodiment of the invention;

FIG. 21 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 nozzle; 31-secondary internal threads; 311-secondary overflow groove; 32-an injection hole; 321-hip washing spray hole; 322-gynecological washing spray hole; 323-enema injection hole; 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 rotating member; 1011-water passing hole; 102-snap configuration; 1021-a button; 1022-a housing; 1023-a rotor; 1024-a spring; 103-water passing seat; 1031-water passage.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 20, a compact bidet body washing device according to an embodiment of the present invention includes a nozzle unit, a driving unit, and a switching assembly 100.

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

referring to fig. 1, 2 and 6, 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 internally provided with communicated water paths (see dotted lines with arrows in fig. 6), 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 a portion of the primary sleeve 22 having the primary female screw 21, which will be described later.

Referring to fig. 2, 3, 16 and 17, 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. 17) is provided on the secondary internal thread 31 in the axial direction, and 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 (see fig. 16) 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. 18 and 19, 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 6, 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. 6, 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. 1, 2 and 5, in this embodiment, a water inlet connector 12 is further disposed on the fixed nozzle 10 and is communicated with an 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 and 6, 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 three can only slide relatively in the axial direction.

Referring to fig. 1 and 3, 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 spraying holes 32 are formed on the top wall of the front end of the

secondary spraying pipe

30, and 3 spraying holes 32 are formed at intervals along the axial direction of the secondary spraying pipe 30, and respectively include a hip washing spraying hole 321, an enema spraying hole 323 and a woman washing spraying hole 322 from the back to the front.

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

referring to fig. 3, the nozzle unit is at 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, 5 and 6, 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 primary screw 50 rotates reversely, the secondary screw 60 is also driven to rotate reversely, and under the matching action of the secondary external thread 61 on the secondary screw 60 and the secondary internal thread 31 on the secondary nozzle 30, the secondary nozzle 30 retracts relative to the primary nozzle 20, so that the initial position shown in fig. 3 is returned.

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 nozzles 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 by retracting the secondary nozzle 30 to the retracted position to switch the waterway.

The switching assembly 100 includes a switching member, which is driven by the plurality of stages of the retractable nozzles to retract to the retracted position to drive the switching member to switch and control the water path to communicate with different spraying holes 32.

Specifically, referring to fig. 1, 3 and 10, the switching element is a rotatable rotating element 101, and after the telescopic nozzles of a plurality of stages are retracted to the retracted position and reset to the initial position each time, the switching element 100 drives the rotating element 101 to rotate by a predetermined angle to control the water path to communicate with different injection holes 32. The predetermined angle may be set as desired, for example, 45 °, 90 °, 180 °, etc.

In this embodiment, referring to fig. 1, 3, 13, 14 and 15, the switching assembly 100 further includes a spring structure 102 similar to a cylindrical pen, and each time the last stage nozzle (the second stage nozzle 30) retracts to the retracted position, the front end of the first stage screw (the first stage screw 50) of the plurality of stages of screws presses a button 1021 of the spring structure 102, so that the spring structure 102 drives the rotating member 101 to rotate by a predetermined angle. The spring pressing structure 102 mainly includes a button 1021, a housing 1022, a rotor 1023 and a spring 1024, wherein the housing 1022 and the rotor 1023 are respectively provided with ratchet teeth, and other specific structures and working principles are not described in detail herein.

As shown in fig. 1, 10, 11 and 12, the rotating member 101 is a water diversion sheet 101, a water through hole 1011 is formed on the water diversion sheet 101 and is communicated with the inner cavity of the secondary nozzle 30, and the inner cavity of the secondary nozzle 30 forms a part of the water path. The switching assembly 100 further comprises a water passing seat 103 fixedly arranged in the front end of the secondary spray pipe 30, the water passing seat 103 is provided with water passing channels 1031, the number of which is the same as that of the spray holes 32, namely 3 water passing channels 1031 are also arranged, namely, a hip washing water passing channel, a woman washing water passing channel and an enema water passing channel, the water outlet end of each water passing channel 1031 is communicated with the corresponding spray hole 32, namely, the hip washing water passing channel is communicated with the hip washing spray holes 321, the woman washing water passing channel is communicated with the woman washing spray holes 322, and the enema water passing channel is communicated with the enema spray holes 323. When the water distribution piece 101 rotates, the water passing hole 1011 switchably communicates with the water inlet end of each water passing passage 1031, so that the water path switchably communicates with each injection hole 32 through each water passing passage 1031.

In this embodiment, the 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 rotating 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 needed or not may be determined and controlled by using the following waterway switching method, which includes the following steps:

s1: acquiring a user instruction and the position of a rotating member of the switching assembly when the nozzle unit is at the initial position by the controller, executing step S2 when the controller judges that the spray hole communicated with the water path is matched with the user instruction, and executing step S3 when the controller judges that the spray hole communicated with the water path is not matched with the user instruction;

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

referring to fig. 3, when the nozzle unit is in the initial position, the nozzle unit is not extended relative to the fixed bracket 10 and is not retracted relative to the fixed bracket 10, and the water passing holes 1011 of the rotating member 101 are communicated with the corresponding injection holes 32 of the water passing passages 1031 through one of the water passing passages 1031. When cleaning is started, the position of the rotating part 101 is sensed by the position sensor, the position sensor sends a position signal of the rotating 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 as to judge whether the injection hole 32 communicated with the water path is matched with a corresponding function (hip washing function, gynecological washing function or enema function) selected by a user or not, 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 stretch out 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 woman washing function or the enema function), the motor 40 is controlled to make the nozzle unit retract backward to drive the switching assembly 100 to switch the water path, and then the motor 40 is controlled to make the nozzle unit extend forward to clean the corresponding function.

Referring to fig. 4, if the user command is a hip washing command, and the water path is communicated with the bidet washing injection hole 322 at this time, the communication state of the water path and the injection hole 32 is not matched with the user command, so that when the water path needs to be switched, the motor 40 drives the nozzle unit to move backward (as shown in the arrow direction of fig. 4) relative to the fixing bracket 10, so that the secondary nozzle 30 retracts to the retracted position, the front end of the primary screw 50 presses the button 1021 of the elastic pressing structure 102, so that the rotor 1023 of the elastic pressing structure 102 rotates by a predetermined angle, the rotor 1023 further drives the water diversion sheet 101 to rotate by a predetermined angle until the water passing hole 1011 is communicated with the hip washing injection hole 321, and water in the water path is sprayed out through the hip washing injection 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 rotating 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 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. 21, a toilet according to a third embodiment of the present invention includes a toilet body 1, a toilet cover 2, and a toilet body cleaning device 3, wherein the toilet body cleaning device 3 is disposed on the toilet cover 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 perform water path switching.

Fig. 21 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 to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a human belt cleaning device's of squatting pan water route switches structure which characterized in that includes:

the switching assembly is arranged at the front end of the final stage spray pipe and comprises a switching piece, and the telescopic spray pipes of a plurality of stages are driven to retract backwards to the retraction positions so as to drive the switching piece to switch and move, so that the water way is controlled to be communicated with different spray holes.

2. The waterway switching structure of the toilet bowl human body cleaning device according to claim 1, wherein the switching assembly further comprises a spring structure similar to a cylindrical pen, and when the final stage nozzle is retracted to the retracted position, the front end of the first stage screw of the plurality of stages of screws presses the button of the spring structure once, so that the spring structure drives the switching member to perform switching movement once.

3. The waterway switching structure of the human body cleaning device for the toilet according to claim 1 or 2, wherein the switching member is a rotatable rotating member, and after the plurality of stages of the telescopic nozzles are retracted to the retracted position and reset to the initial position each time, the switching component drives the rotating member to rotate by a predetermined angle to control the waterway to be communicated with different spraying holes.

4. The water path switching structure of the toilet bowl human body cleaning device according to claim 3, wherein the rotating member is a water dividing plate, the water dividing plate is provided with water passing holes communicated with the inner cavity of the last stage spray pipe, the inner cavity of the last stage spray pipe forms a part of the water path, the switching assembly further comprises a water passing seat fixedly arranged in the front end of the last stage spray pipe, the water passing seat is provided with water passing channels with the same number as the spray holes, the water outlet end of each water passing channel is communicated with the corresponding spray hole, and when the water dividing plate rotates, the water passing holes are communicated with the water inlet ends of the water passing channels in a switching manner.

5. The waterway switching structure of the human body cleaning device for the toilet according to claim 1, wherein the retractable nozzle includes a first-stage nozzle and a second-stage nozzle, and correspondingly, the screw includes 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 telescopically relative to the fixed nozzle, the first-stage nozzle drives the second-stage nozzle and the second-stage screw to move telescopically relative to the fixed nozzle when the first-stage nozzle extends and retracts relative to the fixed nozzle, and the second-stage screw drives the second-stage nozzle to move telescopically relative to the first-stage nozzle when the second-stage screw rotates.

6. The water path switching structure of the toilet human body cleaning device according to claim 5, 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.

7. The waterway switching structure of the human body cleaning device for the toilet according to claim 6, 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.

8. The waterway switching structure of the personal washing device for the toilet according to claim 6, wherein one of the outer wall of the primary screw and the inner wall of the secondary screw is provided with a sliding groove 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 sliding groove and is in sliding fit along the sliding groove, 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.

9. The water path switching structure of the human body cleaning device for the toilet bowl 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; or,

10. 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.

11. 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.

12. The waterway switching structure of the human body cleaning device for the toilet according to claim 1, further comprising a position sensor and a controller, wherein 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 rotating member, the controller judges the communication state of the waterway 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 bracket according to a user instruction.

13. The waterway switching structure of a human body cleaning device for a toilet according to claim 1, further comprising a controller, wherein the driving member is a motor, the motor is electrically connected with the controller, the controller can memorize the position of the rotating 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 bracket according to the instruction of a user and the memory information.

14. A waterway switching method of a bidet body washing device, which adopts the waterway switching structure of the bidet body washing device according to any one of claims 1 to 13, the waterway switching method comprising the steps of:

15. A toilet bowl, comprising a toilet bowl body, a toilet bowl cover plate and a toilet bowl human body cleaning device, wherein the toilet bowl human body cleaning device comprises the waterway switching structure of the toilet bowl human body cleaning device according to any one of claims 1 to 13, or the toilet bowl human body cleaning device adopts the waterway switching method according to claim 14.