CN111110093A

CN111110093A - Toilet seat with adjustable seat ring opening

Info

Publication number: CN111110093A
Application number: CN202010130926.8A
Authority: CN
Inventors: 罗水生
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-05-08

Abstract

The invention belongs to the technical field of toilets, and particularly relates to a toilet seat with an adjustable seat opening. The technical scheme is as follows: a toilet seat with an adjustable seat ring opening comprises an upper seat, a middle seat and a lower seat which are sequentially connected, wherein a plurality of groups of seat telescopic mechanisms are connected in the middle seat; the seat plate telescopic mechanism comprises a transmission rod, a telescopic plate and at least two steering heads, the steering heads are hinged in the middle seat plate, a transmission chute is arranged on each steering head, a transmission sliding block is fixed on the transmission rod, and the transmission sliding block is sleeved in the transmission chute; the steering head is further fixed with a pulling sliding block, the telescopic plate is provided with a pulling sliding groove, the pulling sliding block is sleeved in the pulling sliding groove, the telescopic plate is sleeved in the middle seat plate, and the transmission plate is fixed with a handle. The invention provides a toilet seat which can adjust the size of a seat opening to adapt to users with different statures.

Description

Toilet seat with adjustable seat ring opening

Technical Field

The invention belongs to the technical field of toilets, and particularly relates to a toilet seat with an adjustable seat opening.

Background

The closestool is a product in the field of daily bathroom accessories, and most of the existing closestool cover materials are ceramics.

A toilet with replaceable toilet ring is disclosed in utility model patent No. CN 201621317253.2. The closestool comprises a closestool body, a female seat closestool ring, a left side half ring, a right side half ring, a closestool cover, a water tank, a right side closestool ring sleeve groove, a left side closestool ring sleeve groove, a first fixing screw, a second fixing screw and a spring; a female seat toilet ring is arranged above the toilet body, a split-close toilet ring is arranged on the female seat toilet ring, and the split-close toilet ring is composed of a left side half ring and a right side half ring; the left half ring is fixed on the female seat toilet seat through a first fixing screw; a spring is arranged between the left side half-turn and the right side half-turn; a toilet cover is arranged on the split-joint toilet ring; the water tank is arranged behind the toilet body; the closestool body is also provided with a right closestool ring sleeve groove and a left closestool ring sleeve groove, and the right closestool ring sleeve groove and the left closestool ring sleeve groove are respectively aligned with the right half ring and the left half ring. The closestool can be quickly sleeved with the disposable closestool ring, and is convenient to use.

However, the size of the toilet seat opening of the toilet cannot be adjusted. The body of the child is small, and the potential safety hazard can be brought when the closestool with the size of the ring opening incapable of being adjusted is used. Moreover, each person is different in size, and the comfort level of the user is difficult to guarantee by using the closestool with the same size of the opening.

Disclosure of Invention

In order to solve the above problems in the prior art, the present invention is directed to a toilet seat capable of adjusting the size of the seat opening to accommodate users of different sizes.

The technical scheme adopted by the invention is as follows:

a toilet seat with an adjustable seat ring opening comprises an upper seat, a middle seat and a lower seat which are sequentially connected, wherein a plurality of groups of seat telescopic mechanisms are connected in the middle seat; the seat plate telescopic mechanism comprises a transmission rod, a telescopic plate and at least two steering heads, the steering heads are hinged in the middle seat plate, a transmission chute is arranged on each steering head, a transmission sliding block is fixed on the transmission rod, and the transmission sliding block is sleeved in the transmission chute; the steering head is further fixed with a pulling sliding block, the telescopic plate is provided with a pulling sliding groove, the pulling sliding block is sleeved in the pulling sliding groove, the telescopic plate is sleeved in the middle seat plate, and the transmission plate is fixed with a handle.

Preferably, the seat plate telescopic mechanisms are two, the two telescopic plates are respectively arranged on two sides of the ring opening of the middle seat plate, linkage sliding blocks are fixed on the two transmission rods, the middle seat plate is hinged with a connecting rod, linkage sliding grooves are formed in two ends of the connecting rod, the linkage sliding blocks are sleeved in the linkage sliding grooves, and the mounting directions of steering heads on two sides of the ring opening of the middle seat plate are the same.

Preferably, a driving mechanism for driving the driving rod to move linearly is installed in the middle seat plate.

Preferably, the driving mechanism comprises a telescopic motor, the telescopic motor is installed in the middle seat plate, an output shaft of the telescopic motor is connected with a driving gear, the driving gear is meshed with a reduction gear, the reduction gear is installed in the middle seat plate, a rack is arranged on the transmission rod, and the reduction gear is meshed with the rack.

Preferably, a travel switch is further installed in the middle seat plate, the travel switch is electrically connected with the driving mechanism, and the travel switch is located beside the end of the transmission rod.

Preferably, a hot air drying mechanism is installed in the middle seat plate; the hot air drying mechanism comprises a fan, the fan is installed in the middle seat plate, an air outlet of the fan is connected with a cover body, a heating sheet is installed in the cover body, and one end, far away from the fan, of the cover body is hinged with a plurality of cover plates.

Preferably, a water spraying and cleaning mechanism is installed in the middle seat plate.

Preferably, the water spraying and cleaning mechanism comprises a flow control valve, a temperature controller, a water distribution controller and a cleaning spray head which are sequentially connected through a pipeline, and the flow control valve, the temperature controller, the water distribution controller and the cleaning spray head are all arranged in the middle seat plate.

Preferably, a seat plate turnover mechanism is further installed in the middle seat plate; the seat plate turnover mechanism comprises a turnover motor, the turnover motor is installed in the middle seat plate, an output shaft of the turnover motor is connected with a damper, a rotating shaft used for being connected with the toilet stool is connected to the middle seat plate, and the other end of the damper is connected with the rotating shaft of the middle seat plate.

Preferably, a seat heating coil is installed in the upper seat, and a temperature sensing element is also installed in the upper seat.

The invention has the beneficial effects that:

1. a steering head is hinged in the middle seat plate, and when the handle drives the transmission rod to move, the transmission sliding block slides in the transmission sliding groove and drives the steering head to rotate. When the steering head rotates, the pulling slide block slides in the pulling slide groove and drives the telescopic plate to move transversely. Therefore, the seat ring opening reserved by the expansion plate is adjusted in size by moving the transmission rod and correspondingly adjusting the position of the expansion plate, so that the seat ring opening is convenient for people of different statures to use, the comfort level of a user is improved, and the use safety is ensured. The quantity of the rotating heads between the telescopic plate and the transmission rod is at least two, when the transmission rod is moved, the plurality of steering heads incline simultaneously, and all parts of the telescopic rod are synchronously pulled, so that the telescopic plate can accurately and transversely move.

2. The linkage slide blocks on the two transmission rods are respectively sleeved in the two linkage sliding grooves of the connecting rod, so that when only one transmission rod is driven to move, the other transmission rod also moves linearly through the transmission of the connecting rod. The moving directions of the two transmission rods are opposite, and the mounting directions of the left steering head and the right steering head are the same, so that the two expansion plates can move in opposite directions, and the two expansion plates are close to or separate from each other, so that the size of the seat ring opening is adjusted, and the operation is convenient and reliable.

3. The driving mechanism can drive the transmission rod to move, and the movement of the telescopic plate can be automatically controlled. By starting the driving mechanism, the transmission rod moves, the transmission rod pulls the steering head to rotate, and the steering head pulls the telescopic plate to move transversely, so that the automatic adjustment of the telescopic plate is facilitated, and the operation is further simplified.

4. After the telescopic motor is started, the telescopic motor drives the driving gear to rotate, and the driving gear drives the reduction gear to rotate. When the reduction gear rotates, the rack on the transmission rod is driven, and then the transmission rod can move correspondingly. When the transmission rod moves, the steering head is pulled to rotate, and the steering head pulls the telescopic plate to move. Thereby through control telescopic motor, can control the removal of expansion plate to automatically regulated seat ring mouth size, convenient operation.

5. The travel switch is arranged beside the end part of the transmission rod, so that when the driving mechanism controls the transmission rod to move, the driving mechanism can automatically stop after the end part of the transmission rod touches the travel switch, the condition that the driving mechanism still works when the expansion plate moves to the limit position is avoided, and the use safety of the driving mechanism is ensured.

6. The hot air drying mechanism can dry the buttocks of the user with hot air at proper temperature according to the needs of the user, thereby avoiding the trouble that the buttocks of the user are wiped dry with paper towels, and improving the comfort level of the user. The heating plate can heat the surrounding air, and the fan blows out the hot air from the gap between the cover plates, so that the buttocks of a user can be dried, and the use is convenient. A plurality of apron are articulated with the lid, conveniently adjust the air-out direction.

7. The water spray cleaning mechanism can spray water to clean the buttocks of a user, avoids the trouble of manual washing or wiping with paper towels, further simplifies the operation of the user and improves the comfort of the user.

8. The cleaning spray head can spray water to the buttocks of a user, so that the buttocks of the user can be automatically cleaned. The flow control valve can control the flow of water and ensure that the water quantity is proper. The temperature controller can control the water temperature, ensure the water temperature to be appropriate, and improve the comfort when the water is used for washing.

9. After the overturning motor is started, the overturning motor can drive the damper to act, the damper can drive the middle seat plate to overturn, and the whole toilet seat plate overturns together. After the seat plate is used up, the seat plate turnover mechanism can automatically drive the seat plate to turn up, and the trouble of manually turning over the seat plate is avoided.

10. The temperature induction unit can respond to the temperature of going up the seat, and when going up the seat temperature lower, seat heating coil can heat last seat, and the temperature of guaranteeing to go up the seat is suitable. According to the needs of the user, the seat plate is heated to the temperature which is considered to be proper by the user, so that the comfort of the user is improved.

The advantages of the invention are not limited to this description, but are described in more detail in the detailed description for better understanding.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the mid-seat plate;

FIG. 4 is an exploded view of the mid-seat deck;

FIG. 5 is a schematic structural view of a seat plate telescoping mechanism;

FIG. 6 is an exploded view of the seat pan retraction mechanism;

FIG. 7 is an exploded view of the hot air drying mechanism;

FIG. 8 is a schematic structural view of a water jet cleaning mechanism;

FIG. 9 is a schematic structural view of the seat plate turnover mechanism;

fig. 10 is an exploded view of the upper deck.

In the figure: 1-upper seat plate; 2-middle seat plate; 3-lower seat plate; 4-seat plate telescoping mechanism; 5-a drive mechanism; 6-a hot air drying mechanism; 7-a water spray cleaning mechanism; 8-seat plate turnover mechanism; 11-seat heating coil; 12-a temperature sensing element; 41-a transmission rod; 42-a retractable plate; 43-a steering head; 44-a handle; 45-connecting rod; 51-a telescoping motor; 52-a drive gear; 53-reduction gear; 54-a travel switch; 61-a fan; 62-a cover body; 63-heating plate; 64-a cover plate; 71-a flow control valve; 72-a temperature controller; 73-water distribution controller; 74-cleaning the spray head; 81-a tumble motor; 82-a damper; 411-a drive slide; 412-a linkage slide; 413-rack; 421-pulling the chute; 431-a drive chute; 432-pull slide; 451-linked sliding groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that 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 implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 6, the toilet seat of the present embodiment includes an upper seat 1, a middle seat 2 and a lower seat 3, which are connected in sequence, wherein the middle seat 2 is connected with a plurality of seat telescoping mechanisms 4; the seat plate telescoping mechanism 4 comprises a transmission rod 41, a telescoping plate 42 and at least two steering heads 43, the steering heads 43 are hinged in the middle seat plate 2, a transmission chute 431 is arranged on the steering heads 43, a transmission slide block 411 is fixed on the transmission rod 41, and the transmission slide block 411 is sleeved in the transmission chute 431; the steering head 43 is further fixed with a pulling slider 432, the telescopic plate 42 is provided with a pulling sliding groove 421, the pulling slider 432 is sleeved in the pulling sliding groove 421, the telescopic plate 42 is sleeved in the middle seat plate 2, and the driving plate is fixed with a handle 44.

The middle seat plate 2 of the invention is internally articulated with a steering head 43, and when the handle 44 drives the transmission rod 41 to move, the transmission slide block 411 slides in the transmission slide groove 431 and drives the steering head 43 to rotate. When the steering head 43 rotates, the pulling slider 432 slides in the pulling chute 421 and drives the expansion plate 42 to move laterally. Therefore, the seat ring opening reserved by the telescopic plate 42 is adjusted by moving the transmission rod 41 and correspondingly adjusting the position of the telescopic plate 42, so that the seat ring opening is convenient for people of different statures to use, the comfort of a user is improved, and the use safety is ensured. The number of the rotating heads between the telescopic plate 42 and the transmission rod 41 is at least two, so that when the transmission rod 41 is moved, the plurality of steering heads 43 tilt simultaneously, and all parts of the telescopic rod are pulled synchronously, so that the telescopic plate 42 can move transversely and accurately.

Furthermore, as shown in fig. 5 and 6, the number of the seat plate stretching mechanisms 4 is two, the two stretching plates 42 are respectively disposed on two sides of the ring opening of the middle seat plate 2, the two transmission rods 41 are both fixed with the linkage sliding blocks 412, the middle seat plate 2 is hinged with the connecting rods 45, two ends of the connecting rods 45 are both provided with the linkage sliding grooves 451, the linkage sliding blocks 412 are sleeved in the linkage sliding grooves 451, and the installation directions of the steering heads 43 on two sides of the ring opening of the middle seat plate 2 are the same.

The two link sliders 412 of the two transmission rods 41 are respectively sleeved in the two link chutes 451 of the connecting rod 45, so that when only one transmission rod 41 is driven to move, the other transmission rod 41 also moves linearly through the transmission of the connecting rod 45. The moving directions of the two transmission rods 41 are opposite, and the mounting directions of the left steering head 43 and the right steering head 43 are the same, so that the two expansion plates 42 can move in opposite directions, and the two expansion plates 42 are close to or away from each other, so that the size of the seat ring opening is adjusted, and the operation is convenient and reliable.

As shown in fig. 4, in order to reduce manual operations, a driving mechanism 5 for driving the driving rod 41 to move linearly is installed in the middle seat plate 2. The driving mechanism 5 can drive the transmission rod 41 to move, and the movement of the telescopic plate 42 can be automatically controlled. By starting the driving mechanism 5, the transmission rod 41 moves, the transmission rod 41 pulls the steering head 43 to rotate, and the steering head 43 pulls the telescopic plate 42 to transversely move, so that the automatic adjustment of the telescopic plate 42 is facilitated, and the operation is further simplified.

The driving mechanism 5 comprises a telescopic motor 51, the telescopic motor 51 is installed in the middle seat plate 2, an output shaft of the telescopic motor 51 is connected with a driving gear 52, the driving gear 52 is meshed with a reduction gear 53, the reduction gear 53 is installed in the middle seat plate 2, a rack 413 is arranged on the transmission rod 41, and the reduction gear 53 is meshed with the rack 413. When the telescopic motor 51 is started, the telescopic motor 51 drives the driving gear 52 to rotate, and the driving gear 52 drives the reduction gear 53 to rotate. When the reduction gear 53 rotates, the rack 413 on the transmission rod 41 is driven, and the transmission rod 41 can move accordingly. When the transmission rod 41 moves, the pull steering head 43 rotates, and the steering head 43 pulls the telescopic plate 42 to move. Therefore, the movement of the telescopic plate 42 can be controlled by controlling the telescopic motor 51, so that the size of the seat ring opening is automatically adjusted, and the operation is convenient.

Furthermore, a travel switch 54 is further installed in the middle seat plate 2, the travel switch 54 is electrically connected with the driving mechanism 5, and the travel switch 54 is located near the end of the transmission rod 41. The travel switch 54 is arranged beside the end of the transmission rod 41, so that when the driving mechanism 5 controls the transmission rod 41 to move, the driving mechanism 5 can be automatically stopped after the end of the transmission rod 41 touches the travel switch 54, the situation that the driving mechanism 5 still works when the expansion plate 42 moves to the limit position is avoided, and the use safety of the driving mechanism 5 is ensured.

As shown in fig. 7, the present invention also has a hot air drying function. A hot air drying mechanism 6 is arranged in the middle seat plate 2; the hot air drying mechanism 6 comprises a fan 61, the fan 61 is installed in the middle seat plate 2, an air outlet of the fan 61 is connected with a cover body 62, a heating sheet 63 is installed in the cover body 62, and one end, far away from the fan 61, of the cover body 62 is hinged with a plurality of cover plates 64. The hot air drying mechanism 6 can dry the buttocks of the user with hot air at a proper temperature according to the needs of the user, thereby avoiding the trouble that the buttocks of the user are wiped dry by paper towels, and improving the comfort level of the user. The heating sheet 63 can heat the surrounding air, and the fan 61 blows the hot air out from the gap between the cover plates 64, so that the buttocks of the user can be dried, and the use is convenient. A plurality of apron 64 is articulated with lid 62, conveniently adjusts the air-out direction.

As shown in fig. 8, the present invention can realize automatic water spray cleaning. And a water spraying and cleaning mechanism 7 is arranged in the middle seat plate 2. The water spray cleaning mechanism 7 can spray water to clean the buttocks of a user, avoids the trouble of manual washing or wiping with paper towels, further simplifies the operation of the user and improves the comfort of the user.

The water spraying and cleaning mechanism 7 comprises a flow control valve 71, a temperature controller 72, a water distribution controller 73 and a cleaning spray head 74 which are connected in sequence through pipelines, wherein the flow control valve 71, the temperature controller 72, the water distribution controller 73 and the cleaning spray head 74 are all installed in the middle seat plate 2. The washing nozzle 74 can spray water toward the buttocks of the user to ensure that the buttocks of the user are automatically washed. The flow control valve 71 can control the flow of water to ensure that the water quantity is proper. The temperature controller 72 can control the water temperature, ensure the water temperature to be proper, and improve the comfort when the water is used for washing.

Furthermore, as shown in fig. 9, a seat plate turnover mechanism 8 is further installed in the middle seat plate 2; the seat plate turnover mechanism 8 comprises a turnover motor 81, the turnover motor 81 is installed in the middle seat plate 2, an output shaft of the turnover motor 81 is connected with a damper 82, a rotating shaft used for being connected with a toilet is connected to the middle seat plate 2, and the other end of the damper 82 is connected with the rotating shaft of the middle seat plate 2. After the turning motor 81 is started, the turning motor 81 can drive the damper 82 to act, and then the damper 82 can drive the middle seat plate 2 to turn over, so that the whole toilet seat plate turns over together. After the seat board is used up, the seat board turnover mechanism 8 can automatically drive the seat board to turn over, and the trouble of manually turning over the seat board is avoided.

Further, as shown in fig. 10, a seat heating coil 11 is installed in the upper seat plate 1, and a temperature sensing element 12 is also installed in the upper seat plate 1. The temperature induction unit can induce the temperature of the upper seat plate 1, and when the temperature of the upper seat plate 1 is lower, the seat plate heating coil 11 can heat the upper seat plate 1, so that the temperature of the upper seat plate 1 is ensured to be proper. According to the needs of the user, the seat plate is heated to the temperature which is considered to be proper by the user, so that the comfort of the user is improved.

The working principle is as follows:

the seat plate telescopic mechanism 4 can realize the enlargement or reduction of the seat ring opening of the upper seat plate 1. The pushing handle 44 moves forward or backward along the edge of the seat plate, and the driving rod 41 connected to the handle 44 moves, and the driving rod 41 pushes the other driving rod 41 through the link 45. The telescopic motor 51 can also be activated to push one transmission rod 41 through the reduction gear 53, which transmission rod 41 in turn pushes the other transmission rod 41 through the link 45. At the same time, the two steering heads 43 connected to the left-hand drive rod 41 and the two steering heads 43 connected to the right-hand drive rod 41 rotate correspondingly, converting the linear motion into a rotary motion. When the steering head pushes the two telescopic plates 42 to move towards or away from each other, the steering head 43 changes the rotation motion into the linear motion of the telescopic plates 42. The size of the seat ring opening of the upper seat plate 1 can be changed by changing the positions of the two expansion plates 42 so as to adapt to different users.

The invention is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims

1. The utility model provides a closestool seat of seat ring mouth adjustable size which characterized in that: comprises an upper seat plate (1), a middle seat plate (2) and a lower seat plate (3) which are connected in sequence, wherein a plurality of groups of seat plate telescopic mechanisms (4) are connected in the middle seat plate (2); the seat plate telescopic mechanism (4) comprises a transmission rod (41), a telescopic plate (42) and at least two steering heads (43), the steering heads (43) are hinged in the middle seat plate (2), a transmission sliding groove (431) is formed in each steering head (43), a transmission sliding block (411) is fixed on each transmission rod (41), and each transmission sliding block (411) is sleeved in each transmission sliding groove (431); the steering head (43) is further fixed with a pulling sliding block (432), the telescopic plate (42) is provided with a pulling sliding groove (421), the pulling sliding block (432) is sleeved in the pulling sliding groove (421), and the telescopic plate (42) is sleeved in the middle seat plate (2).

2. A toilet seat according to claim 1, wherein the size of the seat opening is adjustable by: the seat plate telescopic mechanisms (4) are two in number, the two telescopic plates (42) are respectively arranged on two sides of a ring opening of the middle seat plate (2), the two transmission rods (41) are respectively fixed with a linkage sliding block (412), the middle seat plate (2) is hinged with a connecting rod (45), two ends of the connecting rod (45) are respectively provided with a linkage sliding groove (451), the linkage sliding blocks (412) are sleeved in the linkage sliding grooves (451), and the mounting directions of steering heads (43) on two sides of the ring opening of the middle seat plate (2) are the same.

3. A toilet seat according to claim 1, wherein the size of the seat opening is adjustable by: and a driving mechanism (5) for driving the transmission rod (41) to move linearly is arranged in the middle seat plate (2).

4. A toilet seat according to claim 3, wherein the size of the seat opening is adjustable by: the drive mechanism (5) comprises a telescopic motor (51), the telescopic motor (51) is installed in the middle seat plate (2), an output shaft of the telescopic motor (51) is connected with a driving gear (52), the driving gear (52) is meshed with a reduction gear (53), the reduction gear (53) is installed in the middle seat plate (2), a rack (413) is arranged on the transmission rod (41), and the reduction gear (53) is meshed with the rack (413).

5. A toilet seat according to claim 3, wherein the size of the seat opening is adjustable by: a travel switch (54) is further installed in the middle seat plate (2), the travel switch (54) is electrically connected with the driving mechanism (5), and the travel switch (54) is located beside the end portion of the transmission rod (41).

6. A toilet seat according to claim 1, wherein the size of the seat opening is adjustable by: a hot air drying mechanism (6) is arranged in the middle seat plate (2); the hot air drying mechanism (6) comprises a fan (61), the fan (61) is installed in the middle seat plate (2), an air outlet of the fan (61) is connected with a cover body (62), a heating sheet (63) is installed in the cover body (62), and one end, away from the fan (61), of the cover body (62) is hinged to a plurality of cover plates (64).

7. A toilet seat according to claim 1, wherein the size of the seat opening is adjustable by: and a water spraying and cleaning mechanism (7) is arranged in the middle seat plate (2).

8. A toilet seat according to claim 7, wherein the size of the seat opening is adjustable by: the water spraying cleaning mechanism (7) comprises a flow control valve (71), a temperature controller (72), a water distribution controller (73) and a cleaning spray head (74) which are sequentially connected through pipelines, and the flow control valve (71), the temperature controller (72), the water distribution controller (73) and the cleaning spray head (74) are all arranged in the middle seat plate (2).

9. A toilet seat according to claim 1, wherein the size of the seat opening is adjustable by: a seat plate turnover mechanism (8) is also arranged in the middle seat plate (2); the seat plate turnover mechanism (8) comprises a turnover motor (81), the turnover motor (81) is installed in the middle seat plate (2), an output shaft of the turnover motor (81) is connected with a damper (82), a rotating shaft used for being connected with a toilet stool box is connected onto the middle seat plate (2), and the other end of the damper (82) is connected with the rotating shaft of the middle seat plate (2).

10. A toilet seat according to any one of claims 1 to 9, wherein the size of the seat opening is adjustable by: a seat heating coil (11) is installed in the upper seat plate (1), and a temperature sensing element (12) is also installed in the upper seat plate (1).