A sit-in bathtub

Abstract

The present application relates to the field of bathtub, especially to a sit-in bathtub, which comprises a bathtub body and a seat, and further comprises a driving mechanism connected between the bathtub body and the seat, the driving mechanism can drive the seat to move to the inside, the upper, the side upper and the side of the bathtub body, and the bathtub body is further connected with a support assembly capable of extending and retracting from the bathtub body to the side, the support assembly prevents the bathtub body from overturning. When the sit-in bathtub is used, the seat is first moved from the inside of the bathtub body to the side of the bathtub body, the user sits on the seat outside the bathtub body, and then the seat is sequentially moved to the side upper, the upper and the inside of the bathtub body, so that the user can enter the bathtub body to take a bath; after the bath, the seat is reversely moved to send the user out of the bathtub body; through the above movement setting, the user can conveniently enter and exit the bathtub body, and the safety is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bathtubs, in particular to a bathtub with a seat. BACKGROUND

[0002] With the continuous development of economy, people's living standards are getting higher and higher, and the demand for high-quality medical care or old-age care is also increasing.

[0003] Bathing is an essential part of life, but for people with limited mobility or who need to sit in a wheelchair for a long time, bathing is a difficult task. Therefore, there is a bathtub with a seat in the prior art, and the user can bathe in the bathtub. However, the seat is located in the bathtub, and the user still needs to turn over the wall of the bathtub to sit on the seat, which is also difficult for people with limited mobility or sitting in a wheelchair. Therefore, it is necessary to develop a bathtub with a seat that is convenient for users to enter and exit the bathtub, and also needs to improve the safety of users entering and exiting the bathtub. SUMMARY

[0004] The purpose of the present application is to provide a bathtub with a seat that is convenient for users to enter and exit the bathtub and has high safety.

[0005] In order to achieve the above purpose, the present application provides a bathtub with a seat, which comprises a bathtub body and a seat, and further comprises a driving mechanism connected between the bathtub body and the seat, the driving mechanism can drive the seat to move to the inside, above, side above and side of the bathtub body, the bathtub body is further connected with a support assembly capable of extending and retracting from the bathtub to the side, the support assembly prevents the bathtub from tipping over; when the seat is located on the side of the bathtub body, the support assembly is in an extended state, and when the seat is located in the inside of the bathtub body, the support assembly is in a retracted state.

[0006] Further, the support assembly comprises an extension foot and a driver; the extension foot is slidingly connected to the bottom of the bathtub body, and the driver is connected with the extension foot to drive the extension foot to extend and retract.

[0007] Further, the bottom of the bathtub body is connected with a cylindrical guide cylinder, the length direction of the guide cylinder is parallel to the width direction of the bathtub body, the extension foot is slidingly connected in the guide cylinder, and the end of the extension foot is connected with a pulley; the driver is an electric window opener, the length direction of the electric window opener is parallel to the length direction of the bathtub body, the middle part of the electric window opener is provided with an extension part, and the extension part is connected with the extension foot.

[0008] Further, the driving mechanism comprises a lifting assembly, a rotating frame and a rotating assembly; the lifting assembly is connected to the cylinder body; the rotating frame is rotatably connected to the top end of the lifting assembly; the rotating assembly is connected between the lifting assembly and the rotating frame to drive the rotating frame to rotate relative to the lifting assembly about a vertical axis; and the seat is connected to the rotating frame.

[0009] Further, the rotating assembly comprises a fixed gear, a rack and an electric push rod; the fixed gear is fixedly connected to the top end of the lifting assembly, the rotating axis of the rotating frame is coaxial with the central axis of the fixed gear; the electric push rod is installed on the rotating frame; the rack is installed on the output end of the electric push rod; and the rack is engaged with the fixed gear.

[0010] Further, the rotating frame is provided with an angle adjusting assembly for adjusting the inclination angle of the seat relative to the rotating frame; when the seat is located beside the cylinder body, the angle adjusting assembly makes the seat in a sitting posture; when the seat is located inside the cylinder body, the angle adjusting assembly makes the seat in a reclining posture; and the angle between the seat cushion and the horizontal plane in the reclining posture is greater than that in the sitting posture.

[0011] Further, the angle adjusting assembly comprises a motor, a screw rod, a sliding block and a transmission member; the sliding block is slidingly connected to the rotating frame; the screw rod is rotatably connected to the rotating frame and is driven to rotate by the motor; the screw rod is in threaded transmission with the sliding block to drive the sliding block to slide towards or away from the seat; and the sliding block is provided with a wedge surface; the seat is hingedly connected to the rotating frame; the transmission member is fixedly connected to the seat; and the transmission member is abutted by the wedge surface.

[0012] Further, the seat further comprises a calf rest pad hingedly connected to the seat cushion; and the bathtub further comprises a posture adjusting assembly for adjusting the angle of the calf rest pad relative to the seat cushion; when the seat is located beside the cylinder body, the posture adjusting assembly makes the calf rest pad in a drooping posture; when the seat is located inside the cylinder body, the posture adjusting assembly makes the calf rest pad in a lifting posture; and the angle between the calf rest pad and the seat cushion in the lifting posture is greater than that in the drooping posture.

[0013] Further, the posture adjusting assembly comprises a tightening line and a tightening sleeve; the tightening line is partially sleeved in the tightening sleeve and has two ends protruding out of the tightening sleeve; the first end of the tightening line is connected to the calf rest pad; the second end of the tightening line is connected to the rotating frame; the first end of the tightening sleeve is connected to the seat cushion; and the second end of the tightening sleeve is connected to the sliding block.

[0014] Further, when the seat is beside the cylinder body, the lifting assembly is elongated, the rotating assembly is in a right-rotated state, the supporting assembly is in an extended state, the seat is in a sitting posture, and the calf rest is in a drooping posture; when the seat is above the side of the cylinder body, the lifting assembly is elongated, the rotating assembly is in a right-rotated state, the supporting assembly is in an extended state, the seat is in a reclining posture, and the calf rest is in a lifting posture; when the seat is above the cylinder body, the lifting assembly is elongated, the rotating assembly is in a left-rotated state, the supporting assembly is in an extended state, the seat is in a reclining posture, and the calf rest is in a lifting posture; when the seat is inside the cylinder body, the lifting assembly is shortened, the rotating assembly is in a left-rotated state, the supporting assembly is in a retracted state, the seat is in a reclining posture, and the calf rest is in a lifting posture.

[0015] The seat of the sit-in bathtub is first moved from inside the cylinder body to the side of the cylinder body, a user sits on the seat outside the cylinder body, and then the seat is sequentially moved to above the side of the cylinder body, above the cylinder body and inside the cylinder body, so that the user can enter the cylinder body to take a bath; after the bath, the seat is reversely moved to send the user out of the cylinder body; the user is conveniently in and out of the cylinder body; meanwhile, the sit-in bathtub is also provided with a supporting assembly, which can avoid the cylinder body from overturning after the seat is sat on by a person, and greatly improves the safety. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the sit-in bathtub of the present application when the seat is beside the cylinder body;

[0017] Figure 2 is a structural schematic view of the sit-in bathtub of the present application when the seat is above the side of the cylinder body;

[0018] Figure 3 is a structural schematic view of the sit-in bathtub of the present application when the seat is above the cylinder body;

[0019] Figure 4 is a structural schematic view of the sit-in bathtub of the present application when the seat is inside the cylinder body;

[0020] Figure 5 is a structural schematic view of the bottom of the sit-in bathtub of the present application;

[0021] Figure 6 is a posture schematic view of the seat when the seat is beside the cylinder body;

[0022] Figure 7 is a posture schematic view of the seat when the seat is inside the cylinder body;

[0023] Figure 8Figure 1 is a structure diagram of the lifting assembly, rotating frame, rotating assembly and seat after being disassembled Figure 1 ;

[0024] Figure 9 Figure 1 is a structure diagram of the lifting assembly, rotating frame, rotating assembly and seat after being disassembled Figure 2 ;

[0025] Figure 10 Figure 1 is a structure diagram of the lifting assembly, rotating frame, rotating assembly and seat after being disassembled

[0026] Figure 11 Figure 1 is a structure diagram of the lifting assembly, rotating frame, rotating assembly and seat after being disassembled

[0027]

Explanation of reference numerals

[0028] 1 - cylinder

[0029] 2 - seat, 21 - seat cushion, 22 - calf rest

[0030] 3 - support assembly, 31 - extension foot, 32 - driver, 33 - guide cylinder

[0031] 4 - lifting assembly

[0032] 5 - rotating frame, 51 - damper

[0033] 6 - rotating assembly, 61 - fixed gear, 62 - rack, 63 - electric push rod

[0034] 7 - angle adjustment assembly, 71 - motor, 72 - screw rod, 73 - sliding block, 731 - wedge surface, 74 - transmission member, 741 - roller, 75 - sliding guide block

[0035] 8 - posture adjustment assembly, 81 - tightening line, 82 - tightening sleeve DETAILED DESCRIPTION

[0036] The application will be described in detail below in combination with specific embodiments.

[0037] In the present application, when the orientation words appear, for the orientation words, it is for the convenience of describing the present application and simplifying the description, and is not indicative or suggestive of the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present application. In the present application, unless otherwise specified and limited, when terms such as "provided in", "connected", "connected" appear, these terms should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or it can be connected through an intermediate medium, or it can be connected between two elements. In the present application, unless otherwise specified and limited, when "on", "under" of the first feature appears in the second feature, it can include that the first feature is in direct contact with the second feature, or it can include that the first feature is not in direct contact with the second feature but is in contact through another feature between them.

[0038] The present application provides a sit-in bathtub, as shown in Figures 1 to 11 which includes a tub body 1 and a seat 2, and further includes a driving mechanism connected between the tub body 1 and the seat 2, the driving mechanism being capable of driving the seat 2 to move to the inside, the upper side, the side upper side and the side of the tub body 1, and the tub body 1 is further connected with a support assembly 3 capable of extending and retracting from the tub body 1 to the side (i.e. the side that the seat 2 can reach), the support assembly 3 prevents the tub body 1 from tipping over.

[0039] Based on the above structure, when the sit-in bathtub is used, the seat 2 is first moved from the inside of the tub body 1 to the side of the tub body 1, the user sits on the seat 2 outside the tub body 1, and then the seat 2 is sequentially moved to the side upper side, the upper side and the inside of the tub body 1, so that the user can enter the tub body 1 for bathing; after bathing, the seat 2 moves in reverse to send the user out of the tub body 1, which is convenient for the user to enter and exit the tub body 1; at the same time, the sit-in bathtub is also provided with the support assembly 3, for example, when the tub body 1 is not filled with water, the total weight of the tub body 1 is relatively light, and after a person sits on the seat 2, the tub body 1 is prone to tipping over, but the present application can avoid the above situation by providing the support assembly 3, thereby greatly improving the safety.

[0040] In the present embodiment, when the seat 2 is located at the side of the tub body 1, the support assembly 3 is in the extended state, and when the seat 2 is located in the inside of the tub body 1, the support assembly 3 is in the retracted state. Based on the above setting, when the seat 2 returns to the inside of the tub body 1, the support assembly 3 is retracted, so that it can avoid tripping people passing by. Preferably, as shown in Figure 5As shown, the support assembly 3 comprises an extension foot 31 and a driver 32; the extension foot 31 is slidingly connected at the bottom of the cylinder body 1, and the driver 32 is connected with the extension foot 31 to drive the extension foot 31 to extend and retract. Based on the above arrangement, the extension foot 31 is extended and retracted by the driver 32, which can realize the benefits of electric control and coordinated movement with other components; of course, the extension and retraction of the extension foot 31 can also be achieved without using electric means, for example, manual means can also achieve the purpose of the present application, and such alternatives also fall within the protection scope of the present application.

[0041] In the present embodiment, the bottom of the cylinder body 1 is connected with a cylindrical guide cylinder 33, the length direction of the guide cylinder 33 is parallel to the width direction of the cylinder body 1, the extension foot 31 is slidingly connected in the guide cylinder 33, and the end of the extension foot 31 is connected with a pulley. Based on the above structure, the guide cylinder 33 guides the extension and retraction of the extension foot 31, which can improve the stability of the movement of the extension foot 31 and also reduce the swing of the extension foot 31. Preferably, the driver 32 is an electric window opener, the length direction of the electric window opener is parallel to the length direction of the cylinder body 1, the middle part of the electric window opener is provided with an extension part, and the extension part is connected with the extension foot 31. The electric window opener mentioned in the present application is a prior art, and its structure will not be described in detail in the present application. Due to the structural characteristics of the electric window opener, it can occupy as little width of the cylinder body 1 as possible, and more width space can be reserved for the installation of the extension foot 31, so that the length of the extension foot 31 can be as long as possible, and the effect of preventing rollover can be improved; at the same time, the extension and retraction of the extension foot 31 is easily realized by using the electric window opener, which has low manufacturing cost and simple structure.

[0042] In the present embodiment, as shown in Figure 8 and Figure 9 , the driving mechanism comprises a lifting assembly 4, a rotating frame 5 and a rotating assembly 6; the lifting assembly 4 is connected to the cylinder body 1, the rotating frame 5 is rotatably connected to the top end of the lifting assembly 4, the rotating assembly 6 is connected between the lifting assembly 4 and the rotating frame 5 to drive the rotating frame 5 to rotate relative to the lifting assembly 4 about a vertical axis, and the seat 2 is connected to the rotating frame 5. Based on the above structure, the lifting assembly 4 drives the seat 2 to lift relative to the cylinder body 1 when working; the rotating assembly 6 drives the seat 2 to rotate horizontally relative to the cylinder body 1 when working; the above assemblies work in cooperation to make the seat 2 complete the movement from inside the cylinder body 1 to above the cylinder body 1, from above the cylinder body 1 to above the side of the cylinder body 1, and from above the side of the cylinder body 1 to the side of the cylinder body 1, and after the user sits on the seat 2, the above actions are performed in reverse, i.e. into the cylinder body 1.

[0043] In the embodiment, the rotating assembly 6 comprises a fixed gear 61, a rack 62 and an electric push rod 63; the fixed gear 61 is fixedly connected to the top end of the lifting assembly 4, the rotating shaft of the rotating frame 5 is coaxial with the central shaft of the fixed gear 61, the electric push rod 63 is installed on the rotating frame 5, the rack 62 is installed on the output end of the electric push rod 63, and the rack 62 is in meshing transmission with the fixed gear 61. Based on the above structure, when the electric push rod 63 is extended or retracted, the rotating frame 5 rotates through the meshing transmission of the rack 62 and the fixed gear 61. Of course, in addition to the rotating assembly 6 provided in the embodiment, there are many mechanisms capable of realizing the relative rotation of two components in the mechanical field, and similar substitutions cannot be listed one by one, but similar substitutions also fall within the protection scope of the present application. In order to improve the safety of the bathtub and reduce the swing of the seat, at least two groups of dampers 51 are arranged between the top end of the lifting assembly 4 and the rotating frame 5, and the rotating frame 5 is pressed against the dampers 51 when the rotating frame 5 rotates to the position, so that the rotating frame 5 is tightly pressed.

[0044] In the embodiment, the rotating frame 5 is provided with an angle adjusting assembly 7 for adjusting the inclination angle of the seat 2 relative to the rotating frame 5, as shown in Figure 6 When the seat 2 is located beside the cylinder body 1, the angle adjusting assembly 7 makes the seat 2 in a sitting posture, as shown in Figure 7 When the seat 2 is located inside the cylinder body 1, the angle adjusting assembly 7 makes the seat 2 in a reclining posture, and the angle between the seat cushion 21 of the seat 2 and the horizontal plane in the reclining posture is greater than that in the sitting posture. Based on the above structure, the inclination angle of the seat 2 can be changed, so that the seat 2 has different angles when waiting for the user to sit down and when bathing. When the seat 2 moves to the side of the cylinder body 1 and waits for the user to sit down, the seat 2 is in a sitting posture, and the user is sitting on the seat 2, which is convenient for sitting and reduces the risk of falling. When the seat 2 is located inside the cylinder body 1, the seat 2 changes to a reclining posture, and the user reclines on the seat 2, so that more body parts are soaked in water. The above arrangement facilitates the user to get on and off the seat 2 and bathe, and also improves safety and comfort.

[0045] In the embodiment, as shown in Figures 8-10As shown, the angle adjusting assembly 7 comprises a motor 71, a screw rod 72, a sliding block 73 and a transmission member 74; the rotating frame 5 is provided with a sliding guide block 75, the sliding block 73 is slidingly connected to the sliding guide block 75, the screw rod 72 is rotationally connected to the rotating frame 5 and is driven to rotate by the motor 71, the screw rod 72 is in threaded transmission with the sliding block 73 to drive the sliding block 73 to slide towards and away from the seat 2, the sliding block 73 is provided with a wedge surface 731; the seat 2 is hingedly connected to the rotating frame 5, the transmission member 74 is fixedly connected to the seat 2, and the transmission member 74 is abutted by the wedge surface 731. Based on the above structure, when the sliding block 73 slides towards the seat 2, the wedge surface 731 pushes the transmission member 74, and under the transmission of the transmission member 74, the seat 2 changes to a reclining posture, and when the sliding block 73 slides away from the seat 2, the wedge surface 731 retreats, and under the action of gravity, the seat 2 changes to a sitting posture. In addition, in order to reduce the friction between the transmission member 74 and the wedge surface 731, a roller 741 is further arranged at the contact position of the transmission member 74 and the wedge surface 731.

[0046] In the embodiment, the seat 2 comprises a seat cushion 21 and a calf rest 22, the calf rest 22 is hingedly connected to the seat cushion 21, and the bathtub further comprises a posture adjusting assembly 8 for adjusting the angle of the calf rest 22 relative to the seat cushion 21, as shown in Figure 6 As shown, when the seat 2 is located beside the tub 1, the posture adjusting assembly 8 makes the calf rest 22 in a drooping posture, as shown in Figure 7 As shown, when the seat 2 is located inside the tub 1, the posture adjusting assembly 8 makes the calf rest 22 in a lifting posture, and the angle between the calf rest 22 and the seat cushion 21 in the lifting posture is greater than that in the drooping posture. The above arrangement enables the calf rest 22 to lift the calf to a certain extent when the user is located in the tub 1, thereby improving the comfort of the user.

[0047] In the embodiment, the posture adjusting assembly 8 comprises a tightening line 81 and a tightening sleeve 82, the tightening line 81 is partially sleeved in the tightening sleeve 82 and protrudes from both ends of the tightening sleeve 82, the first end of the tightening line 81 is connected to the calf rest 22, the second end of the tightening line 81 is connected to the rotating frame 5, the first end of the tightening sleeve 82 is connected to the seat cushion 21, and the second end of the tightening sleeve 82 is connected to the sliding block 73. In combination with Figure 10 and Figure 11As shown, when the slider 73 moves, the second end of the tightening sleeve 82 is driven to move, the second end of the tightening sleeve 82 moves relative to the second end of the tightening line 81, so that the first end of the tightening line 81 also moves relative to the first end of the tightening sleeve 82, so as to adjust the angle of the calf rest 22 relative to the seat cushion 21. Based on the above arrangement, the posture adjustment of the calf rest 22 is synchronized with the posture adjustment of the seat 2, and shares a power source, that is, when the slider 73 slides, the seat 2 and the calf rest 22 are simultaneously adjusted in posture, which meets the needs of the overall posture adjustment of the seat 2, and at the same time simplifies the structure and reduces the probability of action error.

[0048] Based on the above arrangement, when the seat 2 of the bath-type bathtub is respectively inside, above, side above and aside of the cylinder body 1, the states of each component are as follows:

[0049] As shown, Figure 1 when the seat 2 is aside of the cylinder body 1, the lifting assembly 4 is elongated, the rotating assembly 6 is in a right-rotated rear state, the supporting assembly 3 is in an extended state, the seat 2 is in a sitting posture, and the calf rest 22 is in a drooping posture, which facilitates the user to sit on the seat 2 and sit well;

[0050] As shown, Figure 2 when the seat 2 is side above of the cylinder body 1, the lifting assembly 4 is elongated, the rotating assembly 6 is in a right-rotated rear state, the supporting assembly 3 is in an extended state, the seat 2 is in a reclining posture, and the calf rest 22 is in a raised posture, which ensures that the seat 2 does not collide with the cylinder body 1 when rotating;

[0051] As shown, Figure 3 when the seat 2 is above of the cylinder body 1, the lifting assembly 4 is elongated, the rotating assembly 6 is in a left-rotated rear state, the supporting assembly 3 is in an extended state, the seat 2 is in a reclining posture, and the calf rest 22 is in a raised posture;

[0052] As shown, Figure 4 when the seat 2 is inside of the cylinder body 1, the lifting assembly 4 is shortened, the rotating assembly 6 is in a left-rotated rear state, the supporting assembly 3 is in a retracted state, the seat 2 is in a reclining posture, and the calf rest 22 is in a raised posture, which facilitates the user to soak the whole body in water.

[0053] Through the linkage of the above components, the bath-type bathtub has a compact structure, high safety and comfortable use.

[0054] In summary, the bath-type bathtub facilitates the user to get in and out, provides a better bathing experience for the user, avoids side turning, and has high safety.

[0055] In the case of no conflict, the above embodiments and features in the embodiments can be combined with each other.

[0056] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present application. Without departing from the principles of the present application, a number of improvements and refinements can also be made, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. A sit-in bathtub, comprising a bathtub body and a seat, characterized in that: The seat is further provided with a driving mechanism connected between the cylinder and the seat, the driving mechanism being capable of driving the seat to move inside, above, above the side, and to the side of the cylinder. The cylinder is further connected to a support assembly capable of extending and retracting from the cylinder to the side, the support assembly preventing the cylinder from tipping over. When the seat is located beside the cylinder, the support assembly is in an extended state, and when the seat is located inside the cylinder, the support assembly is in a retracted state; The driving mechanism includes a lifting assembly, a rotating frame and a rotating assembly; the lifting assembly is connected to the cylinder, the rotating frame is rotatably connected to the top of the lifting assembly, the rotating assembly is connected between the lifting assembly and the rotating frame to drive the rotating frame to rotate relative to the lifting assembly around a vertical axis, and the seat is connected to the rotating frame; An angle adjustment component for adjusting the inclination angle of the seat relative to the rotating frame is provided in the rotating frame. When the seat is located beside the cylinder body, the angle adjustment component places the seat in a sitting position. When the seat is located inside the cylinder body, the angle adjustment component places the seat in a reclining position. The angle between the seat cushion and the horizontal plane is greater in the reclining position than in the sitting position. The seat further includes a calf rest cushion hingedly connected to the seat cushion, and the sit-in bathtub further includes a posture adjustment assembly for adjusting an angle of the calf rest cushion relative to the seat cushion, wherein when the seat is located beside the tub, the posture adjustment assembly places the calf rest cushion in a drooping posture, and when the seat is located inside the tub, the posture adjustment assembly places the calf rest cushion in a raised posture, and the angle between the calf rest cushion and the seat cushion is greater in the raised posture than in the drooping posture; The angle adjustment assembly includes a motor, a screw, a slider, and a transmission member; the rotating frame is provided with a sliding guide block, the slider is slidably connected to the rotating frame, the screw is rotatably connected to the rotating frame and is driven to rotate by the motor, the screw and the slider are threaded to drive the slider to slide in the direction of approaching and moving away from the seat, and the slider is provided with a wedge surface; the seat is hinged to the rotating frame, the transmission member is fixedly connected to the seat, and the transmission member is pressed against the wedge surface; The posture adjustment assembly includes a tightening wire and a tightening sleeve, wherein the tightening wire is partially sleeved in the tightening sleeve and both ends protrude from the tightening sleeve, the first end of the tightening wire is connected to the calf support pad, the second end of the tightening wire is connected to the rotating frame, the first end of the tightening sleeve is connected to the seat cushion, and the second end of the tightening sleeve is connected to the slider.

2. The sit-in bathtub according to claim 1, characterized in that: The support assembly includes an extending foot and a driver; The extending leg is slidably connected to the bottom of the cylinder body, and the driver is connected to the extending leg to drive the extending leg to extend and retract.

3. The sit-in bathtub according to claim 2, characterized in that: The bottom of the cylinder body is connected to a cylindrical guide cylinder, the length direction of the guide cylinder is parallel to the width direction of the cylinder body, the protruding leg is slidably connected in the guide cylinder, and the end of the protruding leg is connected to a pulley; the driver is an electric window opener, the length direction of the electric window opener is parallel to the length direction of the cylinder body, a telescopic part is provided in the middle of the electric window opener, and the telescopic part is connected to the protruding leg.

4. The sit-in bathtub according to claim 1, characterized in that: The rotating assembly includes a fixed gear, a rack and an electric push rod; The fixed gear is fixedly connected to the top of the lifting assembly, the rotation axis of the rotating frame is coaxial with the central axis of the fixed gear, the electric push rod is installed on the rotating frame, the rack is installed at the output end of the electric push rod, and the rack is engaged with the fixed gear.

5. The sit-in bathtub according to claim 1, characterized in that: When the seat is located beside the cylinder, the lifting assembly is extended, the rotating assembly is in a right-rotated state, the supporting assembly is in an extended state, the seat is in a sitting position, and the calf support cushion is in a drooping position; When the seat is located above the side of the cylinder, the lifting assembly is extended, the rotating assembly is in a right-rotated state, the supporting assembly is in an extended state, the seat is in a reclining position, and the calf support cushion is in a raised position; When the seat is above the cylinder, the lifting assembly is extended, the rotating assembly is in a left-rotated state, the supporting assembly is in an extended state, the seat is in a reclining position, and the calf support cushion is in a raised position; When the seat is inside the cylinder, the lifting assembly is shortened, the rotating assembly is in a left-rotated state, the supporting assembly is in a retracted state, the seat is in a reclining position, and the calf cushion is in a raised position.

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