A non-slip, foldable bath lounger

Abstract

A non-slip, foldable shower chair, belonging to the field of assistive medical device technology, addresses the problem of existing shower chairs that only restrict movement through wheels, easily causing slippage and tipping when used on smooth surfaces like tiles, leading to injury. This invention utilizes a combination of support columns and adjustment components to control the backrest panels and auxiliary support plates on both sides of the top of the frame, allowing for switching between sitting and reclining positions to meet the user's needs for movement and reclining. Driven by a fixed rod and drive gears, the backrest panels deflect, coordinating with the adjustment components to move the anti-slip limiting components on both sides of the bottom of the frame horizontally. A moving screw pushes the anti-slip pad at the end of a spring linkage to adhere to the bathroom wall, automatically securing the shower chair left and right, preventing slippage caused by excessive movement and ensuring user safety during showering.

Description

Technical Field

[0001] This invention relates to the field of assistive medical device technology, specifically to a non-slip, foldable bath chair. Background Technology

[0002] In homes, nursing homes, medical facilities, and other settings, when moving bedridden or lower limb-impaired individuals from their beds to the bathroom for bathing and personal hygiene, wheelchairs are generally required. Existing folding wheelchairs typically fold laterally to reduce their footprint and facilitate storage in limited spaces. However, when the user is seated in the wheelchair, it is inconvenient for caregivers to perform the bathing procedure. Therefore, foldable reclining bathing wheelchairs have been developed.

[0003] For example, patent CN103079518B discloses a shower chair, including: a cushion assembly including a sliding plate that can extend and retract toward a bed but cannot move a person lying on it; a backrest assembly including a sliding plate that can extend and retract toward the immovable bed; a moving assembly for height adjustment; and an angle control component including a retractable wedge placed at the lower end of the backrest assembly and an angle determining block placed at the upper end of the cushion assembly, wherein the backrest is rotated relative to the cushion assembly to a desired angle so that the backrest assembly is fixed relative to the cushion assembly at a set angle. However, existing shower chairs often only restrict the rolling wheels at the bottom during use. When used on a smooth bathroom floor, if the user's showering movements are too large, the shower chair may slip on the tiled floor, causing the user to tip over and fall, potentially causing secondary injuries.

[0004] Therefore, a non-slip, foldable bath chair was introduced. Summary of the Invention

[0005] The purpose of this invention is to provide a non-slip, foldable bath chair, which aims to solve the problem in the background art where existing bath chairs only restrict the wheels. When users use them in bathrooms with smooth floors such as tiles, excessive movements can easily cause the bath chair to slip and tip over, resulting in injury to the user.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a non-slip foldable bathing chair, comprising a frame and rollers movably mounted on the outer walls of the bottom sides of one end of the frame, mounting brackets fixedly connected to the outer walls of the bottom sides of the other end of the frame, auxiliary wheels movably mounted between the bottom side walls of the mounting brackets, armrests fixedly connected to the top sides of the frame, a seat cushion fixedly connected to the top of the frame, an auxiliary support plate movably sleeved on the outer wall of the frame beam on the same side as the auxiliary wheels, a support column movably sleeved through the outer wall of the frame beam in the middle on the same side as the rollers, a backrest fixedly connected to the top of the support column, an adjustment component movably mounted on the seat cushion opposite the support column, one end of the adjustment component movably connected to the bottom of the support column, and the other end movably connected to the side wall of the auxiliary support plate, fixing rods fixedly connected to the bottom of the backrests on both sides of the support column, a drive gear fixedly connected to the lower end of the fixing rod, the drive gear movably sleeved on the outer wall of the frame beam on the same side as the rollers, and an anti-slip limiting component fixedly connected to the outer wall of the frame beam adjacent to the drive gear; The anti-slip limiting component is fixedly connected to a T-shaped fixing plate on the outer wall of the frame beam and a rotating shaft movably set on the side wall of the T-shaped fixing plate. A speed-changing gear is fixedly connected to the outer wall of the rotating shaft, and a driven gear is fixedly connected to the outer wall of the rotating shaft outside the speed-changing gear. The driven gear meshes with the side end of the driving gear, and an adjusting gear ring is movably set on the side wall of the T-shaped fixing plate below the speed-changing gear. A moving screw is movably sleeved in the threaded hole in the middle of the adjusting gear ring. The moving screw is movably set through the side wall of the T-shaped fixing plate, and a spring connecting rod is set at the end of the moving screw near the roller. An anti-slip pad is fixedly connected to the outer wall of the end of the spring connecting rod.

[0007] Furthermore, protrusions are provided at both ends of the side wall of the fixed end of the adjusting gear ring, and an annular groove is provided on the side wall of the T-shaped fixing plate corresponding to the protrusions. The adjusting gear ring is movably fitted onto the side wall of the T-shaped fixing plate by engaging the annular groove through the protrusions. A limit groove is provided on one outer wall of the moving screw, and a limit block is fixedly connected to the inner wall of the through hole of the T-shaped fixing plate corresponding to the limit groove. When the moving screw is movably sleeved in the through hole of the T-shaped fixing plate, the limit block is movably engaged in the limit groove.

[0008] Furthermore, the adjustment assembly includes a first mounting base fixedly connected to the bottom of the seat cushion and a hydraulic rod movably connected to the side wall of the first mounting base. A horizontal bar is fixedly connected to the end of the hydraulic rod. A U-shaped rod is movably provided through the bottom of the support column on one side of the fixed end of the hydraulic rod. The two ends of the U-shaped rod are provided through the side walls of the horizontal bar. The ends of the two ends of the U-shaped rod are respectively movably connected to a second mounting base. The ends of the second mounting bases are all fixedly connected to the side wall of the auxiliary support plate.

[0009] Furthermore, when the auxiliary support plate and the backrest plate are both perpendicular to the seat cushion, the hydraulic rod remains in a normally relaxed state, at which time the end of the spring linkage and the anti-slip pad are suspended below the seat cushion inside the roller.

[0010] Furthermore, mounting holes are provided on both sides of the top of the backrest panel. A connecting rod is provided in the mounting hole through a movable sleeve. An extension plate is fixedly connected to the end of the connecting rod. The extension plate is suspended outside the mounting hole port, and a headrest is fixedly connected to the outer wall of the extension plate near the seat cushion panel.

[0011] Furthermore, storage slots are respectively provided at the bottom of both ends of the outer wall of the backrest away from the seat cushion. Support legs are movably connected between the inner walls at the top of the storage slots. Telescopic connecting rods are movably connected to the side walls of the support legs. The ends of the telescopic connecting rods are movably connected to the inner walls of the storage slots near the top. When the support legs are vertically and movably engaged in the storage slots, the lower ends of the support legs are close to and suspended on the outside of the crossbeam at the back of the frame.

[0012] Furthermore, a bracket is fixedly connected to the inner wall of the steel ring of the roller, and a push wheel is fixedly connected to the end of the bracket. The push wheel is coaxially suspended on the outside of the roller, and L-shaped rods are fixedly connected to the opposite side walls of the mounting bracket. A foot pedal is movably sleeved on the outer wall of the L-shaped rod.

[0013] Furthermore, a hollow cavity is provided at the end of the movable screw near the spring connecting rod, and the end of the spring connecting rod away from the anti-slip pad extends through into the hollow cavity. A long column piston is fixedly connected to the end of the spring connecting rod inside the hollow cavity. The long column piston is movably engaged with the inner wall of the hollow cavity, and an air extraction chamber is formed between the long column piston and the inner wall of the hollow cavity. An air extraction channel is provided inside the spring connecting rod, and the two ends of the air extraction channel are respectively connected to the air extraction chamber and the concave cavity of the anti-slip pad. A T-shaped rod is fixedly connected to the end of the long column piston away from the air extraction chamber, and a return spring is fixedly connected to the end of the T-shaped rod. The end of the return spring is fixedly connected to the inner wall of the hollow cavity.

[0014] Furthermore, a connecting port is provided on each side wall of the hollow cavity. A limiting hook is movably provided between the inner walls of the two sides of the connecting port. The limiting hook is used to hook onto the outer wall of the skeleton rod inside the roller steel ring on both sides of the moving screw when the moving screw is inserted into the gap of the skeleton rod inside the roller steel ring. Two sets of identical winding wheels are evenly spaced between the inner walls of the mounting cavity inside the connecting port. An adjusting rope is fixedly connected to the end of the limiting hook away from the hook head. The adjusting rope is S-shaped and wound around the outer wall of the winding wheel. The end is fixedly connected to the outer wall of the T-shaped rod crossbar.

[0015] Furthermore, when the port of the air extraction channel near the end of the long column piston is close to the inner wall of the air extraction chamber end, the return spring remains in a normally relaxed state. At this time, the limit hook is horizontally retracted into the communication port.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention proposes an anti-slip foldable bath lounger. Through the cooperation of support columns and adjustment components, the backrest panels and auxiliary support plates on both sides of the top of the frame are linked and controlled to achieve synchronous up-down and reverse deflection of the backrest panels and auxiliary support plates, thereby switching between sitting and reclining positions to meet the user's needs for movement and reclining while bathing. Simultaneously, driven by the fixed rod and drive gear, the deflection of the backrest panels, in conjunction with the adjustment components, causes the anti-slip limiting parts on both sides of the bottom of the frame to move horizontally. This allows the moving screw to push the anti-slip pad at the end of the spring connecting rod to adhere to the bathroom wall, thus automatically fixing the bath lounger left and right. This effectively prevents the bath lounger from slipping due to excessive movements during bathing, ensuring the user's safety. When bathing is complete and the backrest panels are folded up, the moving screw reverses and drives the spring connecting rod and anti-slip pad to automatically pull away from the bathroom wall, releasing the restriction on the rollers, making it convenient to use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall stacked structure of the present invention; Figure 2 This is a structural schematic diagram of the present invention from the perspective of the AB direction in its overall unfolded state; Figure 3 This is a structural schematic diagram of the present invention from the BA direction view when it is in its overall unfolded state; Figure 4 This is a schematic diagram of the installation structure of the frame, backrest, adjustment components, and auxiliary support plate of the present invention. Figure 5 This is a schematic diagram of the anti-slip limiting component structure of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the adjusting gear ring, T-plate, and moving screw of the present invention; Figure 7 This is a schematic cross-sectional view of the spring rod, anti-slip pad, and movable screw of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C.

[0018] In the diagram: 1. Frame; 11. L-shaped rod; 12. Foot pedal; 2. Roller; 21. Hand wheel; 3. Auxiliary wheel; 4. Armrest; 5. Seat cushion; 6. Auxiliary support plate; 7. Support column; 71. Backrest; 711. Connecting rod; 712. Extension plate; 713. Headrest; 72. Fixing rod; 73. Drive gear; 74. Storage slot; 75. Support leg; 76. Telescopic connecting rod; 8. Adjustment assembly; 81. First mounting base; 82. Hydraulic rod; 83. Crossbar; 84. U-shaped rod; 85. Second mounting base; 9. Anti-slip limiting component; 91. T-shaped fixing plate; 911. Annular groove; 912. Limiting block; 92. Speed ​​change gear; 93. Driven gear; 94. Adjusting gear ring; 95. Moving screw; 951. Long column piston; 952. Air extraction chamber; 953. T-shaped rod; 954. Return spring; 955. Connecting port; 956. Limiting hook; 957. Winding wheel; 958. Adjusting rope; 96. Spring connecting rod; 961. Air extraction channel; 97. Anti-slip pad; 98. Limiting groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-4A non-slip, foldable bath chair includes components such as a frame 1, rollers 2, push wheels 21, auxiliary wheels 3, armrests 4, seat cushion 5, and auxiliary support plate 6. The frame 1, a three-dimensional steel tube structure, has axles welded to the outer walls of its bottom sides on both sides. Rollers 2 are movably mounted on the outer walls of the ends of the axles. Brackets are fixedly connected to the inner walls of the steel rings of the rollers 2, and push wheels 21 are fixedly connected to the ends of the brackets. The push wheels 21 are coaxially suspended outside the rollers 2. Mounting frames are fixedly connected to the outer walls of the bottom sides of the other end of the frame 1. Auxiliary wheels 3 are movably mounted between the bottom side walls of the mounting frames. The diameter of the auxiliary wheels 3 is much smaller than the diameter of the rollers 2. L-shaped rods 11 are fixedly connected to the opposite side walls of the mounting frames. Foot pedals 12 are movably mounted on the outer walls of the L-shaped rods 11. The foot pedals 12 can rotate 90 degrees around the L-shaped rods 11, switching between vertical and horizontal placement. In this configuration, U-shaped armrests 4 are welded to both sides of the top of the frame 1. A waterproof box is installed on the top of the armrest 4 on one side of the frame 1, and a control switch is installed inside the waterproof box. A transparent waterproof flip cover is movably installed on the top of the waterproof box. An integrated extension handle is installed at the top end of the armrest 4 near the roller 2, which is used to manually push the roller 2 to roll. A seat cushion 5 is fixedly connected to the top of the frame 1. An auxiliary support plate 6 is movably sleeved on the outer wall of the crossbeam of the frame 1 on the same side as the auxiliary wheel 3. The auxiliary support plate 6 is used to support the user's legs. A support column 7 is movably sleeved through the outer wall of the crossbeam of the frame 1 in the middle on the same side as the roller 2. A backrest 71 is fixedly connected to the top of the support column 7. Drainage holes are evenly spaced on the backrest 71, seat cushion 5 and auxiliary support plate 6 so that water can quickly drain from the backrest 71, seat cushion 5 and auxiliary support plate 6 during bathing, so as to ensure quick drying of water.

[0021] like Figure 2 As shown, mounting holes are provided on both sides of the top of the backrest panel 71. A connecting rod 711 is installed in the mounting hole with a movable sleeve. An extension plate 712 is fixedly connected to the end of the connecting rod 711. The extension plate 712 is suspended outside the mounting hole port, and a headrest 713 is fixedly connected to the outer wall of the extension plate 712 near the seat cushion panel 5. By dragging the connecting rod 711 to move inside the mounting hole, the distance between the extension plate 712 and the backrest panel 71 can be adjusted to accommodate the needs of people of different heights and ensure that the headrest 713 supports and cushions the head when the user moves in a sitting position or half-reclined while taking a bath.

[0022] like Figure 1 and Figure 3As shown, storage slots 74 are respectively provided at the bottom of both ends of the outer wall of the backrest 71 away from the seat cushion 5. A support leg 75 is movably connected between the inner walls of the top of the storage slot 74. A telescopic link 76 is movably connected to the side wall of the support leg 75. The end of the telescopic link 76 is movably connected to the inner wall of the storage slot 74 near the top. When the support leg 75 is vertically and movably engaged in the storage slot 74, the lower end of the support leg 75 is close to the outside of the crossbeam of the backrest 1. When the backrest 71 is tilted to the maximum angle based on the crossbeam of the frame 1, the support leg 75 automatically deflects under the action of gravity based on the pin on the side wall at the top. The lower end of the support leg 75 slides out of the storage slot 74 through the deflection of gravity and deflects and stretches the telescopic link 76. The support leg 75 naturally maintains a vertical angle with the ground. At this time, the lower end of the support leg 75 contacts the ground to support the tilted support leg 75.

[0023] To address the issue that existing shower chairs, which only restrict the use of wheels, can easily cause users to slip and tip over when using them on smooth surfaces like tiled floors, leading to injuries, please refer to [the relevant documentation / reference]. Figures 1-6 The following preferred technical solutions are provided: An adjustment component 8 is movably provided on the seat cushion 5 opposite to the support column 7. One end of the adjustment component 8 is movably connected to the bottom of the support column 7, and the other end is movably connected to the side wall of the auxiliary support plate 6. The bottom of the backrest plates 71 on both sides of the support column 7 is fixedly connected to the fixing rods 72 respectively. The lower end of the fixing rods 72 is fixedly connected to the drive gears 73. The drive gears 73 are movably sleeved on the outer wall of the frame 1 crossbeam on the same side as the roller 2, and the outer wall of the frame 1 crossbeam adjacent to the drive gears 73 is fixedly connected to the anti-slip limiting component 9. The anti-slip limiting component 9 is fixedly connected to the T-shaped fixing plate 91 on the outer wall of the crossbeam of the frame 1 and the rotating shaft is movably set on the side wall of the T-shaped fixing plate 91. A speed-changing gear 92 is fixedly connected to the outer wall of the rotating shaft, and a driven gear 93 is fixedly connected to the outer wall of the rotating shaft outside the speed-changing gear 92. The driven gear 93 meshes with the side end of the drive gear 73. An adjusting gear ring 94 is movably set on the side wall of the T-shaped fixing plate 91 below the speed-changing gear 92. A moving screw 95 is movably sleeved in the threaded hole in the middle of the adjusting gear ring 94. The moving screw 95 is movably set through the side wall of the T-shaped fixing plate 91, and a spring connecting rod 96 is set at the end of the moving screw 95 near the roller 2. An anti-slip pad 97 is fixedly connected to the outer wall of the end of the spring connecting rod 96.

[0024] The adjusting gear ring 94 has protrusions at both ends of the fixed end sidewall. The T-shaped fixing plate 91 has an annular groove 911 on the sidewall corresponding to the protrusions. The adjusting gear ring 94 is movably fitted onto the sidewall of the T-shaped fixing plate 91 by engaging the annular groove 911 through the protrusions. The moving screw 95 has a limit groove 98 on one outer wall. The T-shaped fixing plate 91 has a limit block 912 fixedly connected to the inner wall of the through hole corresponding to the limit groove 98. When the moving screw 95 is movably sleeved in the through hole of the T-shaped fixing plate 91, the limit block 912 is movably engaged in the limit groove 98.

[0025] The adjustment assembly 8 includes a first mounting base 81 fixedly connected to the bottom of the seat cushion 5 and a hydraulic rod 82 movably connected to the side wall of the first mounting base 81. A horizontal bar 83 is fixedly connected to the end of the hydraulic rod 82. A U-shaped rod 84 is movably connected through the bottom of the support column 7 on one side of the fixed end of the hydraulic rod 82. The two arms of the U-shaped rod 84 are connected through the two side walls of the horizontal bar 83, and the ends of the two arms of the U-shaped rod 84 are respectively movably connected to a second mounting base 85. The ends of the second mounting base 85 are fixedly connected to the side wall of the auxiliary support plate 6. When the auxiliary support plate 6 and the backrest plate 71 are both perpendicular to the seat cushion 5, the hydraulic rod 82 is in a normal relaxed state. At this time, the end of the spring connecting rod 96 and the anti-slip pad 97 are suspended below the seat cushion 5 inside the roller 2.

[0026] Specifically, when a patient or user with lower limb mobility issues needs to move or take a bath, they sit on the seat cushion 5 and activate the hydraulic rod 82. After the hydraulic rod 82 extends, it uses the crossbar 83 to drive the U-shaped rod 84 to move laterally. The U-shaped rod 84, in conjunction with the support column 7, drives the backrest 71 to deflect downwards based on the crossbeam of the frame 1. At the same time, the U-shaped rod 84, through the first mounting seat 81 at its end, drives the auxiliary support plate 6 on the crossbeam at the other end of the frame 1 to deflect upwards. At this time, the backrest 71, the seat cushion 5, and the auxiliary support plate 6 are almost horizontal. In this configuration, the user can recline slightly on the backrest 71 and seat cushion 5. The hydraulic rod 82, by driving the U-shaped rod 84, stretches and deflects the positioning points of the backrest 71 and auxiliary support plate 6 in a parallelogram shape, thereby achieving synchronous deflection and folding control of the backrest 71 and auxiliary support plate 6. This facilitates quick switching between sitting and reclining positions on the bath chair. After pushing the user into the narrow bathroom, the backrest 71 and auxiliary support plate 6 are deflected and unfolded. When the backrest 71 deflects downwards, it drives the drive mechanism via the fixing rod 72. The rotating gear 73 drives the driven gear 73 through the engagement of the driven gear 93, the speed-changing gear 92, and the adjusting gear ring 94, causing the adjusting gear ring 94 to rotate on the side wall of the T-shaped fixed plate 91. This pushes the moving screw 95 to move horizontally within the central threaded hole on the adjusting gear ring 94, allowing the spring connecting rod 96 at the end of the moving screw 95 to pass through the skeleton rods inside the steel ring of the roller 2. The moving screw 95 is placed horizontally within the steel ring of the roller 2 to prevent it from rotating. At the same time, the spring connecting rod 96 at the end of the moving screw 95 extends... After extending to the outside of the roller 2 and contacting the narrow inner wall of the bathroom, the moving screw 95 pushes the anti-slip pad 97 at the end of the spring connecting rod 96 to adhere to the inner wall of the bathroom, thereby automatically fixing the bath recliner to the left and right sides. This effectively prevents the bath recliner from slipping due to excessive movements during the bath, ensuring the safety of the user. When the bath is finished and the backrest 71 is folded up, the moving screw 95 reverses and drives the spring connecting rod 96 and the anti-slip pad 97 to automatically pull away from the inner wall of the bathroom, releasing the restriction on the roller 2, making it convenient to use.

[0027] To further ensure the stability of the recliner while the user is showering, such as Figure 3 , Figure 4 and Figures 7-8 As shown, this implementation provides the following technical solution: A hollow cavity is provided at one end of the movable screw 95 near the spring connecting rod 96. The end of the spring connecting rod 96 away from the anti-slip pad 97 extends through the hollow cavity. A long column piston 951 is fixedly connected to the end of the spring connecting rod 96 inside the hollow cavity. The long column piston 951 is movably engaged with the inner wall of the hollow cavity, and an air extraction chamber 952 is formed between the long column piston 951 and the inner wall of the hollow cavity. An air extraction channel 961 is provided inside the spring connecting rod 96. The two ends of the air extraction channel 961 are respectively connected to the air extraction chamber 952 and the concave cavity of the anti-slip pad 97. A T-shaped rod 953 is fixedly connected to the end of the long column piston 951 away from the air extraction chamber 952. A return spring 954 is fixedly connected to the end of the T-shaped rod 953. The end of the return spring 954 is fixedly connected to the inner wall of the hollow cavity.

[0028] A connecting port 955 is provided on each side wall of the hollow cavity. A limiting hook 956 is movably installed between the inner walls of the two sides of the connecting port 955. The limiting hook 956 is used to hook onto the outer wall of the skeleton rod inside the steel ring of the roller 2 when the moving screw 95 is inserted into the gap of the skeleton rod inside the steel ring of the roller 2. Two sets of identical winding wheels 957 are evenly spaced between the inner walls of the mounting cavity inside the connecting port 955. An adjusting rope 958 is fixedly connected to the end of the limiting hook 956 away from the hook head. The adjusting rope 958 is S-shaped and wound around the outer wall of the winding wheel 957 and then the end is fixedly connected to the outer wall of the cross bar end of the T-shaped rod 953.

[0029] When the port of the suction channel 961 near the end of the long column piston 951 is close to the inner wall of the suction chamber 952, the return spring 954 remains in a normally relaxed state. At this time, the limit hook 956 is horizontally stored in the port of the connecting port 955.

[0030] Specifically, when the backrest 71 deflects downwards, the moving screw 95, driven by the adjusting gear ring 94, pushes the anti-slip pad 97 at the end of the spring connecting rod 96 to move and contact the bathroom wall. As the backrest 71 continues to deflect downwards, the moving screw 95 uses the spring connecting rod 96 to push the anti-slip pad 97 to press against the bathroom wall. The bathroom wall, in turn, pushes the anti-slip pad 97 to promote the spring connecting rod 96 to move into the hollow cavity of the moving screw 95. When the spring connecting rod 96 moves into the moving screw 95... The long piston 951 and T-shaped rod 953 push the return spring 954 to compress it. When the long piston 951 slides within the hollow cavity, the air in the space formed by the air extraction channel 961 within the spring connecting rod 96 is drawn from the concave cavity of the anti-slip mat 97 and the bathroom wall to the air extraction chamber 952 at the end of the long piston 951. This creates a negative pressure environment in the concave cavity of the anti-slip mat 97, thereby enhancing the stability of the bath chair. When the T-shaped rod 953 compresses the return spring 954 to move, it... The adjustment rope 958 is moved by the step, and after passing through the outer wall of the winding wheel 957, the adjustment rope 958 pulls one end of the limit hook 956, causing it to deflect between the inner walls of the connecting ports 955 on both sides of the mounting cavity. This causes the hook head of the limit hook 956 to deflect and move to the outside of the connecting port 955. After moving with the moving screw 95, it presses against the skeleton rod inside the steel ring of the roller 2, causing the hook head of the limit hook 956 to selectively hook onto the skeleton rod inside the steel ring of the roller 2. This is achieved by the return spring 9. Under the elastic support of 54 and the negative pressure reaction force of the groove in the anti-slip pad 97, the skeleton rod inside the steel ring of roller 2 is pulled by the adjusting rope 958 in conjunction with the limit hook 956, which further ensures the stability of roller 2 when it is stationary. The elastic tension of adjusting rope 958 and the vibration buffer of return spring 954 are used to reduce the stress of deformation damage to the skeleton rod inside the steel ring of roller 2 caused by the vibration of frame 1 during bathing, and prevent excessive deformation damage to the skeleton rod inside the steel ring of roller 2.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-skid foldable bath recliner chair, comprising a frame and rollers movably arranged on the outer walls at the bottom of both sides of one end of the frame, mounting racks fixedly connected on the outer walls at the bottom of both sides of the other end of the frame, auxiliary wheels movably arranged between the side walls at the bottom of the mounting racks, and handrails fixedly connected on both sides of the top of the frame, characterized in that: A seat cushion is fixedly connected to the top of the frame. An auxiliary support plate is movably sleeved on the outer wall of the frame beam on the same side as the auxiliary wheel. A support column is movably sleeved through the outer wall of the frame beam in the middle on the same side as the roller. A backrest is fixedly connected to the top of the support column. An adjustment component is movably provided on the seat cushion opposite the support column. One end of the adjustment component is movably connected to the bottom of the support column, and the other end is movably connected to the side wall of the auxiliary support plate. Fixed rods are fixedly connected to the bottom of the backrests on both sides of the support column. A drive gear is fixedly connected to the lower end of the fixed rod. The drive gear is movably sleeved on the outer wall of the frame beam on the same side as the roller, and an anti-slip limiting component is fixedly connected to the outer wall of the frame beam adjacent to the drive gear. The anti-slip limiting component includes a T-shaped fixing plate fixedly connected to the outer wall of the frame beam and a rotating shaft movably disposed on the side wall of the T-shaped fixing plate. A transmission gear is fixedly connected to the outer wall of the rotating shaft, and a driven gear is fixedly connected to the outer wall of the rotating shaft outside the transmission gear. The driven gear meshes with the side end of the drive gear. An adjusting gear ring is movably disposed on the side wall of the T-shaped fixing plate below the transmission gear. A moving screw is movably fitted in the threaded hole in the middle of the adjusting gear ring. The moving screw movably passes through the side wall of the T-shaped fixing plate, and a spring connecting rod is disposed at the end of the moving screw near the roller. An anti-slip pad is fixedly connected to the outer wall of the end; protrusions are respectively provided at both ends of the side wall of the fixed end of the adjusting toothed ring, and an annular groove is opened on the side wall of the T-shaped fixing plate corresponding to the protrusions. Protrusions are provided at both ends of the side wall of the adjusting toothed ring corresponding to the annular grooves. When the protrusions are movably engaged in the annular grooves, the adjusting toothed ring is movably fitted against the side wall of the T-shaped fixing plate. A limit groove is opened on one side of the outer wall of the moving screw, and a limit block is fixedly connected to the inner wall of the through hole of the T-shaped fixing plate corresponding to the limit groove. When the moving screw is movably sleeved in the through hole of the T-shaped fixing plate, the limit block is movably engaged in the limit groove. The adjustment assembly includes a first mounting base fixedly connected to the bottom of the seat cushion and a hydraulic rod movably connected to the side wall of the first mounting base. A horizontal bar is fixedly connected to the end of the hydraulic rod. A U-shaped rod is movably provided through the bottom of the support column on one side of the fixed end of the hydraulic rod. The two ends of the U-shaped rod are provided through the side walls of the horizontal bar. The ends of the two ends of the U-shaped rod are respectively movably connected to a second mounting base. The ends of the second mounting bases are all fixedly connected to the side wall of the auxiliary support plate. The movable screw has a hollow cavity at one end near the spring connecting rod. The end of the spring connecting rod away from the anti-slip pad extends through the hollow cavity. A long column piston is fixedly connected to the end of the spring connecting rod inside the hollow cavity. The long column piston is movably engaged with the inner wall of the hollow cavity, and an air extraction chamber is formed between the long column piston and the inner wall of the hollow cavity. An air extraction channel is provided inside the spring connecting rod. The two ends of the air extraction channel are respectively connected to the air extraction chamber and the concave cavity of the anti-slip pad. A T-shaped rod is fixedly connected to the end of the long column piston away from the air extraction chamber. A return spring is fixedly connected to the end of the T-shaped rod. The end of the return spring is fixedly connected to the inner wall of the hollow cavity. The hollow cavity has connecting openings on its two side walls. Limiting hooks are movably installed between the inner walls of the two sides of the connecting openings. The limiting hooks are used to hook onto the outer walls of the skeleton rods inside the roller steel rings on both sides of the moving screw when the moving screw is inserted into the gap of the skeleton rod inside the roller steel ring. Two sets of identical winding wheels are evenly spaced between the inner walls of the mounting cavity inside the connecting openings. An adjusting rope is fixedly connected to the end of the limiting hook away from the hook head. The adjusting rope is S-shaped and wound around the outer wall of the winding wheel, and the end is fixedly connected to the outer wall at the end of the T-shaped rod crossbar.

2. The anti-slip foldable bath chair as described in claim 1, characterized in that: When the auxiliary support plate and backrest plate are both perpendicular to the seat cushion, the hydraulic rod remains in a normally relaxed state. At this time, the end of the spring linkage and the anti-slip pad are suspended below the seat cushion inside the roller.

3. The anti-slip foldable bath chair as described in claim 1, characterized in that: The backrest panel has mounting holes on both sides of the top. A connecting rod is installed in the mounting hole with a movable sleeve. An extension plate is fixedly connected to the end of the connecting rod. The extension plate is suspended outside the mounting hole port, and a headrest is fixedly connected to the outer wall of the extension plate near the seat cushion.

4. The anti-slip foldable bath chair as described in claim 1, characterized in that: Storage slots are provided at the bottom of both ends of the outer wall of the backrest away from the seat cushion. Support legs are movably connected between the inner walls at the top of the storage slots. Telescopic connecting rods are movably connected to the side walls of the support legs. The ends of the telescopic connecting rods are movably connected to the inner walls of the storage slots near the top. When the support legs are vertically and movably engaged in the storage slots, the lower ends of the support legs are close to and suspended on the outside of the crossbeam at the back of the frame.

5. The anti-slip foldable bath chair as described in claim 1, characterized in that: A bracket is fixedly connected to the inner wall of the steel ring of the roller, and a push wheel is fixedly connected to the end of the bracket. The push wheel is coaxially suspended on the outside of the roller, and L-shaped rods are fixedly connected to the opposite side walls of the mounting bracket. A foot pedal is movably sleeved on the outer wall of the L-shaped rod.

6. The anti-slip foldable bath chair as described in claim 1, characterized in that: When the port of the air extraction channel near the end of the long column piston is close to the inner wall of the air extraction chamber, the return spring remains in a normally relaxed state. At this time, the limit hook is horizontally retracted into the communication port.

Images