A split body type bathing aid

Abstract

The application relates to a split-body type bathing aid device which comprises a bathing aid bathtub and a shifting vehicle, the bathing aid bathtub comprises a bathtub body, a door and a bathtub moving chassis, the shifting vehicle comprises a bathing aid seat and a walking chassis, the walking chassis is split-body assembled with the bathing aid seat bottom through a self-locking part, the bathing aid device further comprises a positioning device, the positioning device comprises a butt joint part and a positioning part. According to the application, the touch unlocking formed by the shifting vehicle and the bathtub body and the guidance and interlocking linkage formed by the butt joint part and the positioning part are used to realize the precise positioning and matching of the bathing aid seat in the split-body type and the split-body type, so that the bathing aid seat can be separately put into and out of the bathtub, and the shifting vehicle is switched between the split-body type and the split-body type during bathing and taking a bath, so as to facilitate the bathing operation of a bathing aid; on the other hand, the sitting and lying posture of the bathing aid seat can be adjusted, so that the comfort of bathing is improved, the user's body feeling is improved, and the walking chassis can be prevented from entering the bathtub to cause the pollution of bath liquid.

Description

Technical Field

[0001] This invention belongs to the field of bathing assistance technology, specifically relating to a combined and separate bathing assistance device. Background Technology

[0002] Assisted bathing is a service for the elderly, where a bathing therapist brings professional bathing equipment to the home of seniors in need to provide a complete bathing service. The therapists primarily serve elderly people and those with disabilities, providing a deep cleaning effect.

[0003] Currently, bathing assistance equipment generally includes a bathtub and a transfer cart (or bathing chair). The bathtub can be flipped open to form an entrance, and then the transfer cart is pushed in through the entrance before the bathtub door is closed, allowing elderly people and disabled people to bathe in the bathtub while sitting in the transfer cart.

[0004] However, existing assisted bathing processes have the following technical drawbacks:

[0005] 1) Ordinary transfer vehicles cannot separate the seat and the chassis. Therefore, the whole vehicle takes up a lot of space when it enters the bathtub and the center of gravity is high. If you want to take a bath, the required bathtub volume is larger and more bath liquid is needed. In addition, the chassis will also cause bath liquid contamination, resulting in a poor bathing experience and making it more difficult for the bath assistant to operate.

[0006] 2) The overall mobility is not convenient enough to meet the needs of door-to-door service, resulting in low practicality;

[0007] 3) The inability to achieve the required sitting or lying posture during bathing further increases the difficulty for the bathing assistant and also significantly reduces the comfort of bathing. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved combination bathing aid device.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A combined bathing aid device includes a bathtub and a transfer cart.

[0011] The bathtub includes a tub body, a compartment door that opens or closes laterally from the end of the tub body, and a movable base for the tub body, wherein when the compartment door is open, the open end of the tub body forms a bath inlet.

[0012] The transfer vehicle includes a bathing seat and a chassis. The bathing seat includes a chair body, a seat cushion, a backrest, and a leg support that are formed on the chair body and rotatably connected to each other. The seat cushion, backrest, and leg support are adjustable relative to the chair body to change the user's sitting or lying posture on the bathing seat. The chassis is separately assembled with the bottom of the bathing seat through a self-locking component.

[0013] The bathing aid also includes an alignment device for docking the transfer cart with the cylinder. The alignment device includes a docking part and an alignment part. When entering the bath, the cylinder triggers the self-locking component to unlock, and the bathing aid seat and the walking chassis separate. The docking part guides the bathing aid seat to the cylinder. The alignment part interlocks the walking chassis with the bottom of the cylinder based on the synchronous linkage formed by unlocking. When exiting the bath, the bathing aid seat retracts from the docking part, the self-locking component resets to form a self-lock. The alignment part unlocks the walking chassis with the bottom of the cylinder based on the synchronous linkage formed by the self-locking, and the bathing aid seat and the walking chassis reassemble.

[0014] Preferably, the self-locking component includes a lock seat mounted on the chassis, a lock head that is rotatably disposed at the bottom of the bathing seat and engages with the lock seat via a torsion spring, and a movable lock hook that maintains the tendency to hook the lock head. The lock head is pressed against the lock seat by the force provided by the torsion spring and the movable lock hook, thus forming a self-lock. Here, the movement of the movable lock hook is not only linked to the assembly and disassembly movements to further improve the stability and security of the self-locking of the lock head and lock seat, but also further enhances the self-locking performance of the lock head and lock seat based on the hook engagement.

[0015] Furthermore, the lock seat includes a seat body having a platform portion and a beveled foot portion. When self-locking is achieved, the lock head abuts against the junction of the platform portion and the beveled foot portion. The relative movement of the lock head is limited by the obstruction formed by the beveled foot portion and the torsion force of the torsion spring itself.

[0016] According to a specific embodiment and preferred aspect of the present invention, a positioning seat and a tension spring are further provided on the chassis. The movable locking hook is slidably disposed on the chassis along the length direction of the seat body. The two ends of the tension spring are respectively installed on the positioning seat and the movable locking hook to maintain a tensioned engagement tendency to form a self-locking of the lock head and the lock seat.

[0017] Preferably, a touch-activated unlocking module is formed at the bottom of the cylinder body. When the cylinder body is separated, the touch-activated unlocking module abuts and forces the movable locking hook to disengage from the lock head. At this time, the lock head loses the restriction of the movable locking hook and is unlocked relative to the lock seat by the cylinder body.

[0018] In some specific embodiments, the alignment part includes a first mating part fixedly installed at the bottom of the cylinder body and a second mating part installed on the bathing seat via a torsion spring. The second mating part is linked with the lock head; when the lock head disengages from the second mating part, the lock head and the lock seat unlock, and the second mating part resets and interlocks with the first mating part. Preferably, one of the first and second mating parts is a locking hook, and the other is a hook-shaped, block-shaped, or rod-shaped locking module. The hook-and-loop engagement method makes the connection between the two more stable.

[0019] According to another specific embodiment and preferred aspect of the present invention, the lock head is further provided with a pressure rod, wherein the pressure rod can press against the second mating part to form a linkage, and when the pressure rod disengages from the second mating part, the second mating part resets and interlocks with the first mating part; and / or, the lock head is further provided with a roller, and when the lock head is triggered to rotate, the roller slides in the cylinder body or the mating part against the cylinder body.

[0020] According to another specific embodiment and preferred aspect of the invention, the docking portion includes a slide rail extending along the direction of entry and exit from the tub body and pulleys mounted on the bottom of the bathing seat, wherein the pulleys slide on the slide rail. Based on the cooperation of the slide rail and pulleys, the bathing seat can be smoothly delivered into the bathtub. In some specific embodiments, there are two slide rails, correspondingly distributed on both sides of the tub body width direction; the pulleys are divided into two groups, located on opposite sides of the bottom of the bathing seat. This makes the horizontal movement more stable and safer, and the use of at least two pulleys provides optimal support.

[0021] According to another specific embodiment and preferred aspect of the present invention, the docking device further includes a guide ramp portion disposed at the inlet of the tub body, wherein the guide ramp portion gradually slopes downward from the inside to the outside; and / or, the docking device further includes a guide channel disposed at the bottom of the tub body, wherein the walking chassis enters the bottom of the tub body along the guide channel. Based on the provision of the guide ramp portion, it facilitates the entry and exit of the separated bathing chair from the inlet of the tub body, reducing collision damage, while simultaneously meeting the positional alignment requirements for separation and reassembly. The guide channel provides motion guidance for the walking chassis. It facilitates collision between the walking chassis and the tub body, and also meets the positional alignment requirements for separation and reassembly.

[0022] In addition, the cylinder moving chassis includes moving wheels on opposite sides and positioning support modules on opposite sides, with the bottom surfaces of the moving wheels and positioning support modules flush to form a support surface. That is, by lifting the positioning support module upwards, the cylinder can be moved based on the moving wheels. At the same time, a lifting handle is formed on the compartment door, so that the cylinder can be moved by operating the lifting handle.

[0023] Preferably, the cylinder body gradually decreases in size from top to bottom, and a support bracket is fixedly provided at the front end of the cylinder body, wherein the front end of the support bracket is flush with the front end of the cylinder body to form a mounting surface. The main functions of the support bracket are: 1. Assisting in positioning: When the cylinder body is placed horizontally, the mounting surface forms a positioning grid; when the cylinder body is placed vertically, the mounting surface is in contact with the ground, thus assisting in placement; 2. Providing support during movement and protecting the cylinder body.

[0024] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0025] In existing assisted bathing systems, the moving vehicle cannot separate the seat and the chassis. Therefore, the entire vehicle occupies a large space and has a high center of gravity when placed inside the bathtub. To bathe the child, a larger bathtub and more bath soap are required. In addition, the chassis can cause bath soap contamination, resulting in a poor bathing experience and making it difficult for the bathing assistant to operate. Furthermore, the overall mobility is insufficient, failing to meet the needs of door-to-door services and resulting in low practicality. Moreover, the inability to adjust the child's posture to sit or lie down during bathing further increases the difficulty for the bathing assistant and significantly reduces bathing comfort. This invention cleverly solves all the shortcomings of existing structures by designing a modular assisted bathing device. After adopting this split-type bathing device, the first compartment door opens to form a bathing inlet. The transfer cart is then aligned with the inlet, and the self-service bathing seat on the transfer cart enters the tank body, while the self-propelled chassis enters the bottom of the tank body. When the tank body triggers the lock to rotate, the lock disengages from the lock seat, separating the bathing seat from the chassis. Simultaneously, the matching part engages with the alignment part to interlock and position the chassis and the bottom of the tank body relative to each other. The bathing seat then enters the tank body along the guide docking part. Finally, the compartment door closes, allowing the user to bathe on the bathing seat. Therefore, this invention... On the one hand, based on the touch unlocking and docking parts and the alignment parts formed by the transfer vehicle and the cylinder, the precise alignment and coordination of the transfer vehicle for entering the bath and exiting the bath is realized, so that the bathing chair can enter and exit the bathtub independently. As the transfer vehicle switches between separation and combination during entry and exit, it facilitates the bathing operation of the bathing assistant. On the other hand, the bathing chair itself has an adjustable sitting and reclining posture to improve the user's bathing comfort and increase the user's physical experience. In addition, it can also prevent the chassis from entering and causing bath liquid contamination. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the bathing aid device in this embodiment;

[0027] Figure 2 for Figure 1 Front view diagram;

[0028] Figure 3 for Figure 2 A top-down view;

[0029] Figure 4 for Figure 3 A schematic diagram of the AA-direction section;

[0030] Figure 5 This is a schematic diagram of the bathing state of the bathing aid device in this embodiment;

[0031] Figure 6 This is a schematic diagram of the bathing aid device in the bathing state according to this embodiment;

[0032] Figure 7 This is a schematic diagram of the structure of the bathtub in this embodiment;

[0033] Figure 8 for Figure 7 A half-section diagram;

[0034] Figure 9 This is a schematic diagram of the structure of the bathing chair in this embodiment;

[0035] Figure 10 for Figure 9 A half-section diagram;

[0036] The components include: 1. Bathtub; 10. Bathtub body; 11. Door; 110. Lifting handle; 12. Bathtub body moving chassis; 120. Casters; 121. Positioning support module; 13. Support legs;

[0037] 2. Transfer cart; 20. Bathing chair; 200. Chair body; 201. Seat cushion; 202. Backrest; 203. Leg support; 21. Self-locking component; 210. Lock seat; a. Platform; b. Foot ramp; T. Seat body; 211. Lock head; g1. Pressure bar; g2. Roller; 212. Abutment limit module; 213. Movable locking hook; g3. Actuating rod; 214. Positioning seat; 215. Tension spring; 22. Walking chassis;

[0038] 3. Docking device; 30. Docking part; 300. Slide rail; 301. Pulley; 31. Alignment part; 311. First mating part; 312. Second mating part; 33. Guiding channel; 34. Guiding ramp part. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0045] like Figures 1 to 10 As shown, the bathing aid equipment involved in this embodiment includes a bathing bathtub 1, a transfer cart 2, and a docking device 3.

[0046] In some specific embodiments, the bathtub 1 includes a tub body 10, a chamber door 11 that is laterally flipped open or closed from the end of the tub body 10, and a tub body movable base 12, wherein when the chamber door 11 is open, the open end of the tub body 10 forms a bath inlet.

[0047] In this example, the cylinder body 10 gradually decreases in size from top to bottom, and a support bracket 13 is fixedly provided at the front end of the cylinder body 10. The front end of the support bracket 13 is flush with the front end of the cylinder body 10 to form a mounting surface. The main functions of the support bracket are: 1. Assisting in positioning: when the cylinder body is placed horizontally, the mounting surface forms a positioning grid; when the cylinder body is placed vertically, the mounting surface is in contact with the ground, thus assisting in placement; 2. Providing support during movement and protecting the cylinder body. Specifically, the support bracket 13 is a U-shaped rod, fixed to the front end of the cylinder body 10 by external connectors. The cylinder body moving chassis 12 includes moving wheels 120 located on opposite sides and positioning support modules 121 located on opposite sides, wherein the bottom surfaces of the moving wheels 120 and the positioning support modules 121 are flush to form a support surface. That is, after the positioning support module is lifted upward, the cylinder can be moved based on the moving wheels. At the same time, a lifting handle 110 is formed on the door 11, so the cylinder 10 can be moved by operating the lifting handle. Meanwhile, the door 11 and the cylinder 10 can be sealed and locked together.

[0048] The transfer vehicle 2 includes an adjustable bathing seat 20 and a chassis 22 separately mounted to the bottom of the bathing seat 20 via a self-locking component 21. The self-locking component 21 includes a lock seat 210 mounted on the chassis 22 and a lock head 211 rotatably disposed at the bottom of the bathing seat 20 and cooperating with the lock seat 210. In some specific embodiments, the bathing seat 20 includes a chair body 200, a seat cushion 201 formed on the chair body 200 and rotatably connected to it, a backrest 202, and a leg support 203. The seat cushion 201, backrest 202, and leg support 203 are adjustable relative to the chair body 200 to change the user's sitting or reclining posture on the bathing seat 20. The chassis 22 is separately assembled to the bottom of the chair body 200 via the self-locking component 21.

[0049] The alignment device 3 includes a docking part 30 and an alignment part 31. When entering the bath, the tub body 10 triggers the self-locking component 21 to unlock, and the bathing seat 20 and the walking chassis 22 separate. The docking part 30 guides the bathing seat 20 to the tub body 10. The alignment part 31 interlocks the walking chassis 22 with the bottom of the tub body 10 based on the synchronous linkage formed by unlocking. When exiting the bath, the bathing seat 20 exits from the docking part 30, the self-locking component 21 resets to form a self-lock, and the alignment part 31 unlocks the walking chassis 22 relative to the bottom of the tub body 10 based on the synchronous linkage formed by self-locking, and the bathing seat 20 and the walking chassis 22 reassemble.

[0050] In some specific embodiments, the docking part 30 includes a slide rail 300 extending along the direction of entering and exiting the tub 10 and pulleys 301 mounted on the bottom of the bath seat 20, wherein the pulleys 301 slide on the slide rail 300. Based on the cooperation of the slide rail and pulleys, the bath seat can be smoothly delivered into the bathtub. In this example, there are two slide rails 300, correspondingly distributed on both sides of the width direction of the tub 10; the pulleys 301 are divided into two groups, located on opposite sides of the bottom of the bath seat 20. This makes the horizontal movement more stable and safer, and the use of at least two pulleys provides optimal support.

[0051] The alignment part 31 includes a first mating part 311 fixedly installed at the bottom of the cylinder 10 and a second mating part 312 installed on the chair body 200 via a torsion spring. The second mating part 312 is linked with the lock head 211. When the lock head 211 disengages from the second mating part 312, the lock head 211 and lock seat 210 are unlocked, and the second mating part 312 resets and interlocks with the first mating part 311. In some specific embodiments, one of the first mating part 311 and the second mating part 312 is a locking hook, and the other is a hook-shaped, block-shaped, or rod-shaped locking module. The hook-and-loop engagement method makes the connection between the two more stable.

[0052] In this example, the lock seat 210 includes a seat body T having a platform portion a and a sloping foot portion b. When self-locking is achieved, the lock head 211 abuts against the junction of the platform portion a and the sloping foot portion b. The relative movement of the lock head 211 is limited by the obstruction formed by the sloping foot portion b and the torsion force of the torsion spring itself. The lock head 211 is mounted to the bottom of the chair body 200 by a torsion spring that maintains a downward movement tendency. Here, the lock head automatically resets based on the torsion spring. The lock head 211 is also provided with a pressure rod g1, which can press against the second mating portion 312 to form a linkage. When the pressure rod g1 disengages from the second mating portion 312, the second mating portion 312 resets and interlocks with the first mating portion 311. That is, the self-locking or unlocking is linked to the state of the second mating portion 312 by the activation or disengagement of the pressure rod g1, so that when the chair is assembled, the second mating portion 312 separates from the first mating portion 311; when the chair is disassembled, the second mating portion 312 interlocks with the first mating portion 311. A roller g2 is also provided on the lock head 211. When the lock head 211 is activated and rotated, the roller g2 slides within the cylinder body 10 or the docking part 31. The rolling energy generated by the roller prevents the lock head from causing movement damage to the cylinder body. At the same time, an abutment limiting module 212 is provided at the bottom of the cylinder body 10, and a movable locking hook 213 is provided on the lock seat 210 to hold the lock head 211 hooked towards the slope foot b. During the split operation, the movable locking hook 213 is driven to disengage from the lock head 211 by being abutted by the abutment limiting module 212.

[0053] In some specific embodiments, the movable locking hook 213 is slidably arranged along the length direction of the seat body T, and a positioning seat 214 and a tension spring 215 are also provided on the walking chassis 22, wherein the two ends of the tension spring 215 are respectively installed on the positioning seat 214 and the movable locking hook 213 to maintain the tension hooking trend to form the self-locking of the lock head 211 and the lock seat 210.

[0054] In this example, the movable locking hook 213 is equipped with an actuating rod g3, which is driven by the contact limiting module 212 and the actuating rod g3 to slide and unhook the movable locking hook 213. Here, the equivalent movement of the movable locking hook 213 is also linked with the combined and separated movements to further improve the stability and security of the self-locking of the lock head and lock seat.

[0055] In addition, the docking device 3 also includes a guide channel 33 located at the bottom of the cylinder 10 and a guide ramp 34 located at the bath inlet of the cylinder 10. The walking chassis 22 enters the bottom of the cylinder 10 along the guide channel 33, that is, the movement guidance of the walking chassis is realized by the setting of the guide channel. The guide ramp 34 gradually slopes downward from the inside to the outside. Based on the setting of the guide ramp 34, it is convenient for the separated bathing seat 20 to enter and exit the cylinder 10 from the bath inlet, reducing collision damage, while meeting the positional alignment requirements for separation and reassembly.

[0056] In summary, the bathing process in this embodiment is as follows:

[0057] After opening the compartment door 100 to form a bathing entrance, the transfer vehicle 2 is aligned with it. Then, the self-service bathing seat 20 of the transfer vehicle 2 enters the cylinder 10, and the self-propelled chassis 22 enters the bottom of the cylinder 10 until the unlocking module 212 is triggered and the trigger rod g3 abuts to drive the movable locking hook 213 to slide and release. Then, when the cylinder 10 triggers the lock head 211 to rotate, the lock head 211 disengages from the lock seat 210, so that the bathing seat 20 and the walking chassis 22 are separated. At the same time, the second mating part 312 is linked and interlocked with the first mating part 311 to position the walking chassis 22 and the bottom of the cylinder 10 relative to each other. The bathing seat 20 enters the cylinder 10 along the guide docking part 30, and then the compartment door 100 is closed to allow the user to bathe on the bathing seat 20 (by adjusting the angle of the bathing seat 20 to reflect a comfortable sitting or reclining posture).

[0058] The bathing process in this embodiment is as follows:

[0059] After opening the compartment door 100, the bathing seat 20 is moved outward from the outer cylinder 10. When the lock head 211 is unrestricted and rotates downward to the aligned lock seat 210 under the reset of the torsion spring, the pressure rod g1 contacts the second mating part 312 to unlock the second mating part 312 and the aligned part 31. Then, the trigger rod g3 disengages from the abutting limit module 212 and, under the pull of the tension spring 215, hooks the movable lock hook 213 onto the lock head 211. The lock head 211 abuts against the joint of the platform part a and the slope foot part b and forms a self-lock with the lock seat 210 to complete the relative assembly of the bathing seat 20 and the walking chassis 22.

[0060] Therefore, when using this split-type bathing device, the first compartment door opens to form the bathing entrance. The transfer cart is then aligned with it, and the self-service bathing seat of the transfer cart enters the tank body, while the self-propelled chassis enters the bottom of the tank body. When the tank body triggers the lock to rotate, the lock disengages from the lock seat, separating the bathing seat from the chassis. Simultaneously, the matching part is linked and interlocks with the alignment part to relative position the chassis and the bottom of the tank body. The bathing seat enters the tank body along the guide docking part, and then the compartment door is closed, allowing the user to bathe on the bathing seat. Thus, this invention, on the one hand, achieves precise alignment and coordination of the transfer cart's separation for bathing and reassembly for bathing based on the trigger unlocking mechanism formed by the transfer cart and the tank body, and the guiding and interlocking linkage formed by the docking and alignment parts. This design facilitates the independent entry and exit of the bath chair from the bathtub, and allows the transfer cart to switch between separate and combined configurations during bathing and exit, aiding the bathing therapist's operation. Furthermore, the adjustable seating and reclining posture of the bath chair enhances user comfort and overall experience, while preventing the chassis from entering and contaminating bath liquid. Thirdly, the combination of rails and pulleys ensures a smooth and stable entry of the bath chair into the bathtub, with at least two pulleys providing optimal support. Fourthly, the interlocking of the alignment and matching sections locks the separated chassis and tub body in place. Conversely, when the bath chair is removed, the alignment and matching sections can be repositioned. The separation of the parts allows for the reassembly of the transfer vehicle. The matching part is a locking hook, and the alignment part is a locking module that engages with the locking hook. The locking module can be hook-shaped, block-shaped, or rod-shaped, and the hook-and-loop mechanism ensures a more stable connection. Fifthly, the lock head is mounted on the bottom of the bathing seat via a torsion spring that maintains a downward movement trend. Here, the torsion spring enables automatic reset of the lock head. The lock head also has a pressure rod that presses against the matching part to create a linkage. When the pressure rod disengages from the matching part, the matching part resets and interlocks with the alignment part. That is, the self-locking or unlocking mechanism is linked to the state of the matching part by the pressure rod's activation or disengagement, so that when the parts are assembled, the matching part separates from the alignment part; when they are separated, the matching part interlocks with the alignment part. Furthermore, the lock head also has... The rollers, when the lock head is activated and rotated, slide within the cylinder body or docking part, ensuring that the rolling motion of the rollers prevents the lock head from causing movement damage to the cylinder body. Sixthly, the sloped foot and the torsion spring's own torque limit the relative movement of the lock head. Simultaneously, the movement of the movable hook is linked to both the assembly and disassembly movements, further enhancing the stability and security of the lock head and seat's self-locking mechanism. Furthermore, the hook engagement further strengthens the self-locking performance of the lock head and seat. Seventhly, the guide ramp slopes downwards gradually from the inside out. This ramp facilitates the disassembly of the bathing seat, allowing it to enter and exit the cylinder through the inlet, reducing collision damage and meeting the alignment requirements for both assembly and disassembly.The eighth aspect utilizes the guide channel to guide the movement of the chassis, facilitating collisions between the chassis and the cylinder, and ensuring the required alignment for both separate and assembled components. The ninth aspect involves lifting the positioning support module, allowing the cylinder to be moved using the wheels. A handle is also provided on the door for easy cylinder movement. The tenth aspect focuses on the following functions of the support legs: 1. Auxiliary positioning: When the cylinder is placed horizontally, the support surface forms a positioning grid; when the cylinder is placed vertically, the support surface rests against the ground, thus assisting in placement; 2. Providing support during movement and protecting the cylinder.

[0061] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.

Claims

1. A combined bathing aid device, comprising a bathtub and a transfer cart, characterized in that: The bathtub includes a tub body, a side-opening or closing door formed from the end of the tub body, and a movable chassis for the tub body. When the door is open, the open end of the tub body forms an inlet. The transfer cart includes a bathing seat and a moving chassis. The bathing seat includes a chair body, a seat cushion formed on the chair body and rotatably connected to it, a backrest, and leg supports. The seat cushion, backrest, and leg supports are adjustable relative to the chair body to change the user's sitting or reclining posture on the bathing seat. The moving chassis is separately assembled to the bottom of the bathing seat via a self-locking component. The system includes a lock seat mounted on a chassis, a lock head that is rotatably mounted on the bottom of the bathing seat via a torsion spring and engages with the lock seat, and a movable lock hook that maintains the tendency to engage the lock head. The lock head is self-locking by the force provided by the torsion spring and the movable lock hook, which presses against the lock seat. The lock seat includes a seat body with a platform and a ramp. A positioning seat and a tension spring are also provided on the chassis. The movable lock hook is slidably mounted on the chassis along the length of the seat body. Both ends of the tension spring are respectively mounted on the positioning seat and the movable lock hook to maintain a taut, engaged position. The system features a self-locking mechanism between the lock head and lock seat; a trigger unlocking module is formed at the bottom of the cylinder body, where, when separated, the trigger unlocking module forces the movable lock hook to disengage from the lock head, at which point the lock head loses the restriction of the movable lock hook and is unlocked relative to the lock seat by the cylinder body; the bathing aid also includes an alignment device for docking the transfer cart with the cylinder body, the alignment device including a docking part and an alignment part, the alignment part including a first mating part fixedly installed at the bottom of the cylinder body and a second mating part installed on the bathing aid seat by a torsion spring, wherein the second mating part is linked with the lock head, when the lock head... When the second mating part disengages, the lock head and lock seat unlock, the second mating part resets and interlocks with the first mating part; when entering the bath, the tub body triggers the self-locking component to unlock, the bathing seat and the walking chassis separate, and the docking part guides the bathing seat to the tub body; the alignment part interlocks the walking chassis with the bottom of the tub body based on the synchronous linkage formed by unlocking; when exiting the bath, the bathing seat exits from the docking part, the self-locking component resets to form a self-lock, and the alignment part unlocks the walking chassis with the bottom of the tub body relative to each other based on the synchronous linkage formed by self-locking, and the bathing seat and the walking chassis reassemble.

2. The combined bathing aid device according to claim 1, characterized in that: When self-locking is formed, the lock head abuts against the junction of the platform section and the slope foot section.

3. The combined bathing aid device according to claim 1, characterized in that: The lock head is also provided with a pressure rod, which can press against the second mating part to form a linkage. When the pressure rod is disengaged from the second mating part, the second mating part is reset and interlocks with the first mating part.

4. The combined bathing aid device according to claim 1, characterized in that: The lock head is also provided with rollers. When the lock head is activated and rotated, the rollers slide against the cylinder body or the docking part within the cylinder body.

5. The combined bathing aid device according to claim 1, characterized in that: The docking part includes a slide rail extending along the direction of entering and exiting the cylinder and a pulley installed at the bottom of the bathing seat, wherein the pulley slides on the slide rail.

6. The combined bathing aid device according to claim 1, characterized in that: The docking device also includes a ramp section located at the inlet of the tank, wherein the ramp section gradually slopes downward from the inside to the outside.

7. The combined bathing aid device according to claim 1 or 6, characterized in that: The docking device also includes a guide channel located at the bottom of the cylinder, wherein the traveling chassis enters the bottom of the cylinder along the guide channel.

8. The combined bathing aid device according to claim 1, characterized in that: The cylinder moving chassis includes moving wheels located on opposite sides and positioning support modules located on opposite sides, wherein the bottom surfaces of the moving wheels and the positioning support modules are flush to form a support surface.

9. The combined bathing aid device according to claim 1, characterized in that: The compartment door has a pull handle.

10. The combined bathing aid device according to claim 1, characterized in that: The cylinder gradually decreases in size from top to bottom, and a support bracket is fixedly provided at the front end of the cylinder, wherein the front end of the support bracket is flush with the front end of the cylinder to form a mounting surface.

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