CN220309050U - Switching device of seat and toilet cover plate with switching device - Google Patents

Abstract

The utility model discloses a switching device of a seat ring and a toilet cover plate with the switching device, which are used for connecting the seat ring and a rear seat, and comprise: the switching cap is fixed in the rear seat and is provided with a water inlet interface communicated with a water supply source; the switching axostylus axostyle, the fixed shaft hole department that wears to establish being equipped with on the pedestal ring, the switching axostylus axostyle has axial extension's water channel, the end of intaking of switching axostylus axostyle and switching cap can rotationally sealing connection, the play water end of switching axostylus axostyle is linked together through first hose and the end of intaking of the water valve that sets up on the pedestal ring, still have between the outer wall of switching axostylus axostyle and the inner wall in shaft hole and supply the space of stepping down that the second hose that is connected with the play water end of water valve wears to establish, be equipped with the spacing portion that carries out spacingly to the second hose on the outer wall of switching axostylus axostyle, make second hose and switching axostylus axostyle relatively fixed through spacing portion. The utility model can directly adopt the hose to be arranged between the seat ring and the rear seat in a penetrating way, can effectively avoid the problem of looseness caused by twisting of the hose, and has simple structure and reliable function.

Description

Switching device of seat and toilet cover plate with switching device

Technical Field

The utility model relates to the technical field of toilets, in particular to a switching device of a seat ring and a toilet cover plate with the same.

Background

The utility model patent application of China (application number: 202320896442.3) of the applicant's prior application provides a water-through control structure of a toilet cover plate, which sets a water way switch on a seat ring, so that the set position of the water way switch can be forward, and when a human body sits on the seat ring, the human body does not need to look back for the specific position of the water way switch, does not need to extend hands backwards to operate the water way switch, and can see the water way switch only by lowering the head, thus being more convenient to use and better in experience; in addition, this patent application still discloses setting up at articulated shaft one end and moves the valve block, set up at the one end that business turn over water connects with moving valve block matched with and decide the valve block, the water route that intakes is through moving the valve block on with decide the valve block on the water inlet water hole that sets up respectively, the play water route is through moving the valve block on with decide the valve block on the play water hole that sets up respectively, the articulated shaft drives when rotating and moves the valve block relative to decide the valve block and rotate, the design can avoid adopting the hose directly to pass the articulated shaft and communicate the mode can lead to the hose to be twisted and produce not hard up problem, moreover, the steam generator is simple in structure, the function is reliable.

Except for adopting the technical scheme of above-mentioned patent application, in order to solve the mode that directly adopts the hose to pass the articulated shaft and communicate can lead to the hose to be twisted and produce not hard up problem, the present case produces from this.

Disclosure of Invention

The utility model aims to solve the problems, and provides a switching device of a seat ring and a toilet cover plate with the same, which can be directly arranged between the seat ring and a rear seat in a penetrating way by adopting a hose, can effectively avoid the problem of looseness caused by twisting of the hose, and has simple structure and reliable function.

The technical scheme adopted by the utility model is as follows:

an adapter for a toilet seat for rotatably connecting the seat and a rear seat of a toilet cover, comprising:

the switching cap is fixed in the rear seat and is provided with a water inlet interface communicated with a water supply source;

the water inlet end of the switching shaft rod is in rotationally sealing connection with the switching cap, the water outlet end of the switching shaft rod is communicated with the water inlet end of a water valve arranged on the seat through a first hose, a yielding space for a second hose connected with the water outlet end of the water valve to penetrate is further reserved between the outer wall of the switching shaft rod and the inner wall of the shaft hole, and a limiting part for limiting the second hose is arranged on the outer wall of the switching shaft rod and is relatively fixed with the switching shaft rod.

Preferably, the limiting part comprises two baffles extending along the radial direction of the transfer shaft rod, a limiting groove is formed between the two baffles, and the limiting groove forms the abdication space.

Preferably, the water supply device further comprises a water inlet pipe arranged in the rear seat, and the water supply source is connected with the water inlet interface through the water inlet pipe.

Preferably, the adaptor cap is coaxially connected with the adaptor shaft.

Preferably, the adapter further comprises a fixing sleeve, the fixing sleeve is fixedly connected with the rear seat, the fixing sleeve is sleeved outside the adapter cap, and rotation-stopping fit is formed between the outer wall of the fixing sleeve and the inner wall of the adapter cap.

Preferably, the water inlet connector further comprises an annular first connecting disc which is axially limited on the outer wall of the transfer shaft rod, the transfer cap is far away from one end of the water inlet connector to form an annular second connecting disc, the first connecting disc is attached to the second connecting disc and is fixedly connected with the second connecting disc, and further the transfer shaft rod is connected with the transfer cap in the axial direction, and the transfer cap can rotate relatively in the circumferential direction.

Preferably, the switching axostylus axostyle include be used for with seat fixed connection's connecting portion and have the water passing shaft of water passage, spacing portion locates on the connecting portion, connecting portion with water passing shaft integrated into one piece or independently after shaping through joint structure looks fixed connection.

Preferably, the adapter cap is provided with a cavity communicated with the water inlet interface, one end of the cavity forms an opening, and the water inlet end of the adapter shaft rod extends into the cavity through the opening and forms sealing fit with the inner wall of the cavity.

Preferably, the pedestal ring is provided with a shaft sleeve, an inner cavity of the shaft sleeve forms the shaft hole, the switching shaft rod penetrates through the shaft sleeve, the side wall of the shaft sleeve is provided with a first clamping part, and the outer wall of the switching shaft rod is provided with a second clamping part which is clamped with the first clamping part.

In addition, the utility model also provides a toilet cover plate, which comprises an upper cover, a seat ring and a rear seat, wherein the upper cover and the seat ring are both rotatably arranged on the rear seat, the toilet cover plate also comprises a water valve arranged on the seat ring, and a switching device of any one of the seat rings is arranged between the seat ring and the rear seat.

The beneficial effects of the utility model are as follows:

the utility model is provided with the switching cap and the switching shaft lever, the switching cap is fixed in the rear seat and is provided with the water inlet interface which is communicated with the water supply source; the water outlet end of the switching shaft rod is communicated with the water inlet end of a water valve arranged on the seat through a first hose, a stepping space for the second hose connected with the water outlet end of the water valve to pass through is also arranged between the outer wall of the switching shaft rod and the inner wall of the shaft hole, a limiting part for limiting the second hose is arranged on the outer wall of the switching shaft rod, and the second hose is relatively fixed with the switching shaft rod through the limiting part; on the other hand, the second hose is relatively fixed with the switching shaft lever through the limiting part, and the switching shaft lever is relatively fixed with the seat ring, so that the second hose is relatively fixed with the seat ring without displacement, and the problem that the second hose rubs with the inner wall of the shaft hole of the seat ring to cause abrasion can be avoided. In addition, the water inlet pipe for connecting the water supply source and the water inlet port is connected with the water inlet port which is relatively fixedly arranged on the rear seat, so that the water inlet pipe is not driven to twist when the seat ring is turned over relative to the rear seat, the water inlet pipe can adopt a pipe with higher hardness to bear higher water inlet pressure, and meanwhile, interference is not caused to the turning over of the seat ring relative to the rear seat. Furthermore, the water outlet end of the switching shaft rod is communicated with the water inlet end of the water valve arranged on the seat through the first hose, the first hose is kept motionless relative to the seat when the seat is overturned relative to the rear seat, namely, the first hose cannot be twisted, so that the first hose can also adopt a pipe with larger hardness to bear larger water inlet pressure, and meanwhile, interference is not caused to the overturning of the seat relative to the rear seat.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective assembly view of a switching device of a seat ring according to a first embodiment of the present utility model;

FIG. 2 is an exploded perspective view of the adapter of the seat ring according to the first embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an adapter for a seat in accordance with a first embodiment of the present utility model;

FIG. 4 is a second perspective view of the adapter of the seat according to the first embodiment of the present utility model;

FIG. 5 is a schematic view showing an internal structure of the adapter device of the seat ring mounted on the toilet cover according to the first embodiment of the present utility model;

FIG. 6 is an enlarged view at A in FIG. 5;

FIG. 7 is a second schematic view of the internal structure of the adapter for a seat ring according to the first embodiment of the present utility model;

FIG. 8 is an enlarged view at B in FIG. 7;

FIG. 9 is a third schematic view showing an internal structure of the adapter device for a seat ring according to the first embodiment of the present utility model mounted on a toilet cover;

fig. 10 is an enlarged view of fig. 9 at C;

FIG. 11 is a perspective assembly view of a switching device of a seat ring according to a second embodiment of the present utility model;

FIG. 12 is a second perspective view of a second embodiment of a seat adapter according to the present utility model;

FIG. 13 is an exploded perspective view of a second embodiment of the adapter of the seat ring of the present utility model;

FIG. 14 is a cross-sectional view of a second embodiment of the adapter of the seat of the present utility model;

FIG. 15 is a schematic view showing an internal structure of a seat adapter according to a second embodiment of the present utility model mounted on a toilet cover;

FIG. 16 is a second schematic view showing an internal structure of a seat adapter according to a second embodiment of the present utility model mounted on a toilet cover;

FIG. 17 is a third schematic view of the internal structure of the adapter for a seat ring according to the second embodiment of the present utility model mounted on a toilet cover;

fig. 18 is a partial cross-sectional view of an adapter for a toilet seat according to a second embodiment of the present utility model mounted on a toilet cover.

Symbol description:

10, a seat ring; 101 shaft holes; 102, a shaft sleeve; 1021 a first clamping portion; 20 backseat; 30 water valve;

1 a first hose; 2 a second hose; 3, switching the cap; 31 water inlet interface; 32 a second land; 4, transferring the shaft lever; 4a connection parts; 4b, a water through shaft; 41 limit grooves; a 42 baffle; 43 clamping grooves; 44 a second clamping portion; 5, fixing the sleeve; 6, a first connecting disc; 7 a clamping ring; 7' clamping; 8, a water inlet pipe; 9 sealing rings.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

As shown in fig. 1 to 10, an adapter for a seat according to a first embodiment of the present utility model is for rotatably connecting a seat 10 and a rear seat 20 of a toilet cover, and includes an adapter cap 3 and an adapter shaft 4. The adapter cap 3 is fixed in the rear seat 20 and has a water inlet port 31 for communicating with a water supply source (e.g., a tap water pipe network). The transfer shaft lever 4 is fixedly arranged at a shaft hole 101 arranged on the seat ring 10 in a penetrating way, and the transfer shaft lever 4 is provided with an axially extending water passing channel. The water inlet end of the switching shaft lever 4 is in rotatable sealing connection with the switching cap 3, and the water outlet end of the switching shaft lever 4 is communicated with the water inlet end of the water valve 30 arranged on the seat ring 10 through the first hose 1. The outer wall of the switching shaft lever 4 and the inner wall of the shaft hole 101 are also provided with a yielding space for the second hose 2 connected with the water outlet end of the water valve 30 to penetrate through, the outer wall of the switching shaft lever 4 is provided with a limiting part for limiting the second hose 2, and the second hose 2 and the switching shaft lever 4 are relatively fixed through the limiting part.

Through the structure, on one hand, the second hose 2 is directly arranged between the seat ring 10 and the rear seat 20 in a penetrating way, so that the water outlet end of the water valve 30 can be connected with a water using part (such as a human body water spraying assembly) in the rear seat 20 through the second hose 2; on the other hand, the second hose 2 is relatively fixed with the transfer shaft lever 4 through the limiting part, and the transfer shaft lever 4 is relatively fixed with the seat ring 10, so that the second hose 2 and the seat ring 10 are relatively fixed without displacement, and the problem of abrasion caused by friction between the second hose 2 and the inner wall of the shaft hole 101 of the seat ring 10 can be avoided. In addition, the water inlet pipe 8 for connecting the water supply source and the water inlet port 31 is connected with the water inlet port 31 which is fixedly arranged relative to the rear seat 20, so that the water inlet pipe 8 is not driven to twist when the seat ring 10 is overturned relative to the rear seat 20, the water inlet pipe 8 can adopt a pipe with higher hardness to bear higher water inlet pressure, and meanwhile, the overturning of the seat ring 10 relative to the rear seat 20 is not interfered. Furthermore, the water outlet end of the transfer shaft lever 4 is communicated with the water inlet end of the water valve 30 arranged on the seat ring 10 through the first hose 1, the first hose 1 is kept motionless relative to the seat ring 10 when the seat ring 10 is turned relative to the rear seat 20, that is, the first hose 1 is not twisted, therefore, the first hose 1 can also adopt a pipe with larger hardness to be capable of bearing larger water inlet pressure, and meanwhile, interference is not caused to the turning of the seat ring 10 relative to the rear seat 20.

Preferably, the hardness of the second hose 2 is designed to be smaller than the hardness of the inlet pipe 8 and the first hose 1, because: because the water valve 30 has a certain throttling function, the water pressure can be reduced to a certain extent after the water flows through the water valve 30, so that the water pressure born by the second hose 2 connected with the water outlet end of the water valve 30 is smaller than the water pressure born by the first hose 1 and the water inlet pipe 8 at the front end of the water valve 30, and the second hose 2 can be manufactured by using materials with smaller hardness. While the advantage of choosing the second hose 2 to be less stiff is that during the tilting of the seat 10, the portion of the second hose 2 located in the seat 10 is stationary relative to the seat 10 (as described above), but the portion of the second hose 2 located in the rear seat 20 is movable relative to the rear seat 20, if the second hose 2 is stiffer, it is easy to interfere with the rotation of the seat 10 relative to the rear seat 20, and also to loosen the second hose 2; when the second hose 2 with smaller hardness is selected, due to the larger movable space in the rear seat 20, the second hose 2 is allowed to reserve a proper movable length, and the second hose 2 is softer, so that the part of the second hose 2 in the rear seat 20 can move freely, and further the movement of the part of the second hose 2 in the rear seat 20 can not cause interference and loosening problems of the second hose 2.

As shown in fig. 4, in the present embodiment, the limiting portion includes two baffles 42 extending along the radial direction of the adaptor shaft 4, and a limiting groove 41 is formed between the two baffles 42, where the limiting groove 41 forms a yielding space. The number of the limiting parts is matched with the number of the second hoses 2, in this embodiment, the number of the second hoses 2 is 2, then the number of the limiting parts is 2 (each limiting part comprises 2 baffles 42), and the 2 limiting parts are symmetrically arranged on the peripheral wall of the transfer shaft lever 4.

In this embodiment, the water inlet pipe 8 is disposed in the rear seat 20, and the water supply source is connected to the water inlet port 31 through the water inlet pipe 8.

In this embodiment, the adapter cap 3 is coaxially connected to the adapter shaft 4, and the seat ring 10 is turned up and down around the adapter shaft 4 relative to the rear seat 20.

In this embodiment, still include fixed sleeve 5, fixed sleeve 5 and rear seat 20 fixed connection, fixed sleeve 5 cover is established outside adapter cap 3, forms the cooperation of stopping changeing between the outer wall of fixed sleeve 5 and the inner wall of adapter cap 3, can make adapter cap 3 can not rotate along with adapter shaft 4 under the frictional force effect of adapter shaft 4 like this, and seat 10 upset in-process, adapter cap 3 can remain the state of fixed throughout, and then can not drive inlet tube 8 and lead to inlet tube 8 to be twisted.

In this embodiment, the adapter further includes an annular first connecting disc 6 disposed on the outer wall of the adapter shaft 4 in an axial limiting manner, one end of the adapter cap 3, which is far away from the water inlet port 31, forms an annular second connecting disc 32, and the first connecting disc 6 is attached to and fixedly connected with the second connecting disc 32, so that the adapter shaft 4 and the adapter cap 3 are connected in an axial direction, and can rotate relatively in a circumferential direction. The first connecting disc 6 and the second connecting disc 32 can be fixedly connected by adopting common fixing modes such as screw connection, buckle connection and the like.

Specifically, in this embodiment, the outer wall of the adapter shaft lever 4 forms a clamping groove 43, and when a clamping ring 7 is engaged with the clamping groove 43, the clamping ring 7 axially and limitedly installs the first connecting disc 6 on the adapter shaft lever 4.

In this embodiment, the adapter cap 3 is provided with a cavity communicated with the water inlet port 31, one end of the cavity forms an opening, and the water inlet end of the adapter shaft lever 4 extends into the cavity through the opening and forms sealing fit with the inner wall of the cavity. Specifically, a sealing ring 9 is arranged on the outer wall of the water inlet end of the switching shaft lever 4, and the sealing ring 9 is in sealing fit with the inner wall of the accommodating cavity.

In this embodiment, the seat ring 10 is provided with a shaft sleeve 102, the inner cavity of the shaft sleeve 102 forms a shaft hole 101, and the adapter shaft lever 4 is inserted into the shaft sleeve 102. The side wall of the shaft sleeve 102 is provided with a first clamping part 1021 (as shown in fig. 6 and 8), and the outer wall of the switching shaft lever 4 is provided with a second clamping part 44 (as shown in fig. 1-4 and 8) which is clamped with the first clamping part 1021, so that the fixed connection between the switching shaft lever 4 and the seat ring 10 is realized. Specifically, in the present embodiment, the first clamping portion 1021 is a clamping hole, and the second clamping portion 44 is a buckle, and the buckle is clamped into the clamping hole (as shown in fig. 8).

In this embodiment, the adapter shaft lever 4 includes a connection portion 4a fixedly connected with the seat ring 10 and a water passing shaft 4b having a water passing channel, the connection portion 4a and the water passing shaft 4b are integrally formed, and the limiting portion is disposed on the connection portion 4a.

When the embodiment is assembled, firstly, the adapter cap 3 connected with the water inlet pipe 8 and the adapter shaft lever 4 are connected with the second connecting disc 32 through the first connecting disc 6; then, two second hoses 2 penetrating through the shaft hole 101 are placed in the limiting grooves 41 of the switching shaft lever 4, and the switching shaft lever 4 with the second hoses 2 placed thereon is fixedly connected with the shaft sleeve 102 through the clamping connection of the second clamping connection part 44 and the first clamping connection part 1021, so that the second hoses 2 are limited in the shaft hole 101; then, the fixed sleeve 5 is sleeved outside the adapter cap 3, and the fixed sleeve 5 is fixedly connected with the rear seat 20; finally, the water inlet end of the second hose 2 is connected with the water outlet end of the water valve 30, the water outlet end of the second hose 2 is connected with a water using component (such as a human body water spraying component) in the rear seat 20, and both ends of the first hose 1 are respectively connected with the switching shaft lever 4 and the water inlet end of the water valve 30. Thereby completing the assembly.

As shown in fig. 11 to 18, the adapter device for a seat according to the second embodiment of the present utility model is different from the first embodiment in that two parts (the connecting part 4a and the water passing shaft 4 b) of the adapter shaft 4 of the first embodiment are integrally formed, and the connecting part 4a and the water passing shaft 4b of the present embodiment are fixedly connected by a clamping structure after being independently formed, so that the installation is convenient, and the sealing connection of the water passing shaft 4b and the first hose 1 is ensured. Specifically: during assembly, the water passing shaft 4b and the first hose 1 can be sealed and connected well, so that the connection tightness between the water passing shaft 4b and the first hose 1 can be detected before the whole assembly, after the tightness detection is qualified, the water passing shaft 4b can pass through the connecting part 4a fixed on the shaft sleeve 102 from one side of the seat ring 10 and then be connected with the transfer cap 3 in a sealing manner, compared with the first embodiment (the first embodiment has the advantages that the integral transfer shaft lever 4 cannot pass through the shaft sleeve 102 from one side of the seat ring 10, so that the integral transfer shaft lever 4 is required to be fixedly connected with the shaft sleeve 102 of the seat ring 10, then the transfer shaft lever 4 is required to be connected with the first hose 1, the operation of sealing connection between the transfer shaft lever 4 and the first hose 1 is required to be completed in the seat ring 10, and the seal tightness test is required to be carried out together with the seat ring 10 after the connection, so that the whole test assembly is large in size, the test is inconvenient to test, and the surface of the seat ring 10 is easy to be bumped), the installation is more convenient, and the seal reliability between the water passing shaft lever 4b and the first hose 1 is ensured.

In this embodiment, the adapter cap 3 and the water passing shaft 4b are axially connected together by a clip 7' so as to be rotatable relative to each other.

When the embodiment is assembled, firstly, the adapter cap 3 connected with the water inlet pipe 8 is sleeved with the fixed sleeve 5, and the fixed sleeve 5 is fixedly connected with the rear seat 20; then, two second hoses 2 penetrating through the shaft hole 101 are placed in the limiting grooves 41 of the connecting portion 4a, the connecting portion 4a with the second hoses 2 placed thereon is fixedly connected with the shaft sleeve 102 through the clamping connection of the second clamping connection portion 44 and the first clamping connection portion 1021, and accordingly the second hoses 2 are limited in the shaft hole 101; then, the water inlet end of the second hose 2 is connected to the water outlet end of the water valve 30, the water outlet end of the second hose 2 is connected to a water-using member (e.g., a human body water spray assembly) in the rear seat 20, both ends of the first hose 1 are connected to the water passing shaft 4b and the water inlet end of the water valve 30, and finally, the water passing shaft 4b is inserted into the adapter cap 3 through the connection portion 4a, and the adapter cap 3 is axially connected to the water passing shaft 4b through the clip 7'. Thereby completing the assembly.

In addition, the utility model also provides a toilet cover plate, which comprises an upper cover, a seat ring 10 and a rear seat 20, wherein the upper cover and the seat ring 10 are rotatably arranged on the rear seat 20, the toilet cover plate also comprises a water valve 30 arranged on the seat ring 10, and a switching device of the seat ring is arranged between the seat ring 10 and the rear seat 20.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A swivel device for rotatably connecting a seat and a rear seat of a toilet cover, comprising:

the switching cap is fixed in the rear seat and is provided with a water inlet interface communicated with a water supply source;

the water inlet end of the switching shaft rod is in rotationally sealing connection with the switching cap, the water outlet end of the switching shaft rod is communicated with the water inlet end of a water valve arranged on the seat through a first hose, a yielding space for a second hose connected with the water outlet end of the water valve to penetrate is further reserved between the outer wall of the switching shaft rod and the inner wall of the shaft hole, and a limiting part for limiting the second hose is arranged on the outer wall of the switching shaft rod and is relatively fixed with the switching shaft rod.

2. The seat adapter according to claim 1, wherein the limiting portion includes two baffles extending in a radial direction of the adapter shaft, and a limiting groove is formed between the two baffles, and the limiting groove forms the yielding space.

3. The adapter of claim 1, further comprising a water inlet tube disposed in the rear seat, the water supply source being connected to the water inlet port through the water inlet tube.

4. The ring adapter of claim 1, wherein the adapter cap is coaxially coupled to the adapter shaft.

5. The adapter of claim 1, further comprising a fixing sleeve fixedly connected to the rear seat, the fixing sleeve being sleeved outside the adapter cap, and a rotation-stopping fit being formed between an outer wall of the fixing sleeve and an inner wall of the adapter cap.

6. The adapter device of claim 1, further comprising an annular first connecting disc axially limited on the outer wall of the adapter shaft, wherein an annular second connecting disc is formed at one end of the adapter cap away from the water inlet port, and the first connecting disc is attached to and fixedly connected with the second connecting disc, so that the adapter shaft and the adapter cap are axially connected and can relatively rotate in the circumferential direction.

7. The adapter device of claim 1, wherein the adapter shaft comprises a connecting portion fixedly connected with the seat and a water passing shaft with the water passing channel, the limiting portion is arranged on the connecting portion, and the connecting portion and the water passing shaft are integrally formed or independently formed and then fixedly connected through a clamping structure.

8. The adapter of claim 1, wherein the adapter cap is provided with a cavity communicated with the water inlet port, one end of the cavity forms an opening, and the water inlet end of the adapter shaft rod extends into the cavity through the opening and forms sealing fit with the inner wall of the cavity.

9. The adapter device of a seat ring according to claim 1, wherein the seat ring is provided with a shaft sleeve, an inner cavity of the shaft sleeve forms the shaft hole, the adapter shaft rod is arranged in the shaft sleeve in a penetrating mode, a first clamping portion is arranged on the side wall of the shaft sleeve, and a second clamping portion clamped with the first clamping portion is arranged on the outer wall of the adapter shaft rod.

10. The toilet cover plate comprises an upper cover, a seat ring and a rear seat, wherein the upper cover and the seat ring are rotatably arranged on the rear seat, and the toilet cover plate is characterized by further comprising a water valve arranged on the seat ring, and a switching device of the seat ring according to any one of claims 1 to 9 is arranged between the seat ring and the rear seat.