Rotating structure of bath chair

Abstract

The utility model provides a rotating structure of a bath chair. The rotating structure comprises a seat cushion plate, a supporting foot stool, a rotating device, a pressing rod, a positioning bolt, an elastic resetting piece and a limiting block, the rotating device comprises an upper bottom plate, a rotating disc, a lower bottom plate and a rotating shaft, the lower bottom plate is fixed to the supporting foot stand, the rotating disc is rotationally arranged on the lower bottom plate through the rotating shaft, the upper bottom plate is arranged on the rotating disc, a plurality of balls are arranged on the rotating disc, and the seat cushion plate is fixed to the upper bottom plate; the upper bottom plate and the lower bottom plate are respectively provided with an upper through hole and a lower through hole, the positioning bolt is arranged in the upper through hole, the positioning end of the pressing rod is connected with the positioning bolt, an elastic reset piece is abutted between the positioning end and the seat cushion plate, and the positioning bolt is controlled to be inserted into or separated from the lower through hole through the pressing end of the pressing rod to position or unlock the upper bottom plate; according to the bath chair, the problems that an existing rotatable bath chair is complex in structure and high in machining cost, and a limiting piece for controlling rotation limiting is inconvenient to disassemble and assemble are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bathing chairs, and particularly relates to a rotating structure of a bathing chair. Background Art

[0002] Elderly people, disabled people or patients with limited mobility or poor balance need to use a bathing chair to assist them in bathing or showering in the bathtub due to their physical condition. Due to the small space in the bathtub, the caregiver needs to adjust the bather's bathing position when washing the bather's whole body. If there is no caregiver, it is very inconvenient when the bather needs to turn around to get something or adjust the body direction. It is easy to slip and get injured, which is very dangerous. Therefore, the bathing chair needs to have the function of adjusting the bather's bathing position to solve the problem of the bather turning around when bathing by himself, the inconvenience of caregivers, the high labor intensity and the difficulty of bathers to wash the whole body.

[0003] The structure of the existing rotatable bathing chair is relatively complicated. For example, patent CN210902749U discloses a bathing chair with a rotatable seat, wherein a swivel mechanism is provided between the seat plate and the chair foot frame, and a limit wrench is provided on the swivel mechanism. The swivel mechanism comprises an upper plate connected to the seat plate and a lower plate connected to the chair foot frame, and a rotating disc is provided between the lower plate and the upper plate, and through holes that intersect each other are provided in the middle positions of the upper plate and the rotating disc, and the limit wrench comprises a pressing rod hingedly connected to the pillar on the upper plate and a limit rod connected to the left end of the pressing rod, and convex teeth are provided in the through holes on the upper plate and the rotating disc, and the bottom end of the limit rod extends into the through hole, and the limit rod is provided with engaging teeth that mesh with the convex teeth, thereby limiting the rotation of the external rotation block and the internal rotation block, thereby limiting the rotation of the seat plate to achieve limited fixation, and pressing down the limit wrench can release the limited fixation and the seat plate can rotate.

[0004] The limit wrench of this patent is hinged to the upper disk, and a support and a hinge structure need to be set on the upper disk before the limit wrench can be installed. The structure is relatively complicated and it is not convenient to disassemble and assemble the wrench. In addition, the through hole is set in the middle position between the upper disk and the rotating disk, and it is necessary to machine a convex tooth in the through hole and a bite tooth on the limit rod to realize the rotation limit of the external rotating block and the internal rotating block. The structure is more complicated and the processing cost is high. Utility Model Content

[0005] The utility model aims to provide a rotating structure of a bathing chair, so as to solve the problems of the existing rotatable bathing chair having a complex structure, high processing cost and inconvenient assembly and disassembly of a limiting member for controlling the rotation limit.

[0006] To achieve the above-mentioned purpose, the solution of the utility model is: a rotating structure of a bathing chair, including a seat plate, a supporting foot frame, a rotating device, a pressing rod, a positioning pin, an elastic reset member and a limit block;

[0007] The rotating device comprises an upper bottom plate, a rotating disc, a lower bottom plate and a rotating shaft, wherein the lower bottom plate is fixed on the supporting leg frame, the rotating disc is rotatably arranged on the lower bottom plate through the rotating shaft, the upper bottom plate is arranged on the rotating disc and is pivotally connected to the rotating shaft, a plurality of balls are arranged on the rotating disc, and the seat plate is fixed on the upper bottom plate;

[0008] The upper base plate is provided with an upper through hole on the outer periphery of the turntable, and the lower base plate is provided with a lower through hole at a position corresponding to the upper through hole, the positioning pin is inserted into the upper through hole, and the two ends of the pressing rod are respectively a positioning end and a pressing end, the positioning end is connected to the positioning pin, and an elastic reset member is abutted between the positioning end and the seat cushion plate, the pressing end extends between the seat cushion plate and the upper base plate, and the positioning pin is controlled by the pressing end to be inserted into or out of the lower through hole, thereby positioning or unlocking the upper base plate;

[0009] The limit block is detachably mounted on the upper base plate, one end of the pressing rod is located in the limit block, and the limit block prevents the positioning pin from falling out of the upper through hole.

[0010] Furthermore, the elastic return member is a V-shaped spring, and the two sides of the V-shaped spring are respectively abutted against the positioning pin and the seat plate. The top of the positioning pin is provided with a vertical socket, and the lower end of the V-shaped spring extends vertically downward to provide a plug-in portion, and the plug-in portion is inserted into the socket.

[0011] Furthermore, the limit block is provided with openings on the left and right sides, the positioning end of the pressing rod is inserted into the limit block from the left side, the bottom wall of the limit block is provided with a lower opening connected to the upper through hole, the top wall of the limit block is provided with an upper opening above the lower opening, and the plug-in portion of the V-shaped spring is inserted into the socket through the upper opening; a limit hole is provided on the side wall of the limit block, a limit rod is detachably installed in the limit hole, and the limit rod is located above the positioning pin and the plug-in portion to limit the positioning pin from detaching from the upper through hole and limit the plug-in portion from detaching from the socket.

[0012] Furthermore, a mounting hole is provided on the positioning end of the pressing rod, and a circle of protrusions is provided on the outer periphery of the top of the positioning pin, and the diameter of the protrusion is larger than the diameter of the mounting hole; when the positioning end of the pressing rod is inserted into the limit block from the left side to align the mounting hole with the upper opening and the lower opening, the positioning pin is inserted into the mounting hole, the lower opening, the upper through hole and the lower through hole from the upper opening.

[0013] Furthermore, the limit block is installed on the upper base plate by fixing bolts and nuts, and a bolt fixing hole is provided on the upper base plate and the bottom wall of the limit block. The bolt fixing hole is provided near the side wall of the limit block, and the fixing bolt passes through the bolt fixing hole from bottom to top into the limit block and is threadedly connected with the nut, and the lower side of the V-shaped spring is limited between the fixing bolt and the side wall of the limit block.

[0014] Furthermore, a transverse hole connecting the upper opening and the right side of the limit block is formed on the top wall of the limit block, and the lower side of the V-shaped spring extends into the limit block from the transverse hole and is located between the fixing bolt and the side wall of the limit block.

[0015] Furthermore, the turntable includes an upper turntable and a lower turntable, the lower turntable is provided with a plurality of ring-shaped arranged balls, the upper turntable is made of metal material with a smooth surface, and the lower turntable is made of plastic material.

[0016] Furthermore, the middle portion of the pressing rod is bent so that the pressing end is higher than the positioning end.

[0017] Furthermore, the lower base plate is provided with four centrally symmetrical lower through holes on the outer periphery of the rotating disk.

[0018] Furthermore, two transverse tube frames and vertical tube frames arranged in a crisscross shape are provided between the seat cushion plate and the upper base plate. The transverse tube frames are fixed above the vertical tube frames. Armrests are provided at both ends of the transverse tube frames. A backrest is provided at the rear end of the vertical tube frames on the rear side of the seat cushion plate. A makeshift groove for making way for the pressing rod is provided at the bottom of the left vertical tube frame.

[0019] After adopting the above scheme, the beneficial effects of the utility model are:

[0020] The turntable of the utility model is rotatably arranged on the lower base plate, the upper base plate is arranged on the turntable and both the turntable and the turntable are pivotally connected to the rotating shaft, the seat cushion plate is arranged on the upper base plate, and the circumferential pushing of the seat cushion plate can make the upper base plate drive the seat cushion plate to rotate, thereby realizing the rotation of the bathing chair and adjusting the bathing direction. In addition, a ball bearing is also arranged on the turntable to make the rotation of the seat cushion plate more stable and smooth.

[0021] The positioning end of the pressing rod is connected to the positioning pin. Since the upper through hole and the lower through hole are located on the periphery of the turntable and are eccentric to the rotating shaft, when the positioning pin is inserted into the lower through hole, the seat plate and the upper bottom plate are locked and cannot rotate. Pressing the pressing end of the pressing rod will cause the positioning end to drive the positioning pin to lift up and disengage from the lower through hole, thereby unlocking the seat plate and the upper bottom plate. The bathing position can be adjusted by pushing the seat plate circumferentially. The lower through hole can be set in multiple ways to adjust the different rotation angles of the seat plate. When the positioning end is lifted up, the elastic reset part will be compressed. After the seat plate is rotated, the pressing end can be released. After the seat plate is rotated into place, the elastic reset part will push the positioning pin to insert into the lower through hole to re-limit the seat plate and the upper bottom plate. There is no need to process convex teeth in the lower through hole, and the occlusal teeth are processed on the limit rod to achieve the rotation limit of the seat plate, and the processing cost is low.

[0022] Among them, the pressing rod is placed between the upper base plate and the seat cushion plate, and a limit block is used to limit the pressing end of the pressing rod to prevent the positioning pin from detaching from the upper through hole. The pressing rod does not need to be hinged with the upper base plate to control the positioning pin to limit and unlock the upper base plate. The structure is simple, and there is no need to process pillars and hinge structures on the upper base plate. The limit block can be detachably installed on the upper base plate, and the limit block and the pressing rod are easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the bathing chair of the utility model;

[0024] Figure 2 This is a structural diagram of a bathing chair with a hidden seat pad according to the utility model;

[0025] Figure 3 It is a partial schematic diagram of the bathing chair of the utility model with the seat cushion plate and the upper bottom plate hidden;

[0026] Figure 4 It is a cross-sectional view of the bathing chair of the utility model;

[0027] Figure 5 For this utility model Figure 4 A partial enlarged view of the middle part;

[0028] Figure 6 This is a schematic diagram of the structure of the utility model in which the pressing rod and the limit block are installed on the rotating device;

[0029] Figure 7 This is a schematic diagram of the installation of the pressing rod and the limiting block on the rotating device of the utility model;

[0030] Figure 8 Schematic diagram of the limit block of the utility model Figure 1 ;

[0031] Fig. 9 Schematic diagram of the limit block of the utility model Figure 2 ;

[0032] Fig.10 This is an exploded view of the parts of the rotating device of the utility model;

[0033] Fig.11 It is a structural schematic diagram of the bathing chair of the utility model after rotating 90 degrees.

[0034] Description of labels:

[0035] 1. Seat plate; 2. Supporting foot frame; 3. Rotating device; 31. Upper base plate; 311. Upper through hole; 32. Turntable; 321. Upper turntable; 322. Lower turntable; 323. Ball bearing; 33. Lower base plate; 331. Lower through hole; 34. Rotating shaft; 4. Pressing rod; 41. Positioning end; 411. Mounting hole; 42. Pressing end; 5. Positioning pin; 51. Plug hole; 52. Flange; 6. Elastic reset member; 61. Plug-in part; 7. Limiting block; 71. Upper opening; 72. Lower opening; 73. Limiting hole; 74. Limiting rod; 75. Bolt fixing hole; 76. Fixing bolt; 77. Nut; 78. Horizontal hole; 8. Horizontal tube frame; 81. Armrest; 9. Vertical tube frame; 91. Backrest; 92. Clearance groove. DETAILED DESCRIPTION

[0036] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1-11 As shown, the utility model provides a rotating structure of a bathing chair, comprising a seat cushion plate 1, a supporting leg frame 2, a rotating device 3, a pressing rod 4, a positioning latch 5, an elastic reset member 6 and a limit block 7; the rotating device 3 comprises an upper base plate 31, a rotating disk 32, a lower base plate 33 and a rotating shaft 34, the lower base plate 33 is fixed on the supporting leg frame 2, the rotating disk 32 is rotatably set on the lower base plate 33 through the rotating shaft 34, the upper base plate 31 is set on the rotating disk 32 and is pivotally connected to the rotating shaft 34, the seat cushion plate 1 is fixed on the upper base plate 31, the upper base plate 31 and the rotating disk 32 are coaxially connected through a rotating shaft 34, the circumferential pushing of the seat cushion plate 1 can make the upper base plate 31 drive the seat cushion plate 1 to rotate, thereby realizing the rotation of the bathing chair, and adjusting the bathing direction, and a plurality of balls 323 are also provided on the rotating disk 32, so that the rotation of the seat cushion plate 1 is more stable and smooth.

[0038] Key References Figure 5 The upper base plate 31 is provided with an upper through hole 311 on the outer periphery of the rotating disk 32, and the lower base plate 33 is provided with a lower through hole 331 at a position corresponding to the upper through hole 311. The positioning pin 5 is inserted into the upper through hole 311. Since the upper through hole 311 and the lower through hole 331 are located on the outer periphery of the rotating disk 32 and are eccentric to the rotating shaft 34, the positioning pin 5 inserted into the lower through hole 331 can lock the upper base plate 31, thereby limiting the rotation of the seat cushion plate 1. The two ends of the pressing rod 4 are respectively a positioning end 41 and a pressing end 42. The positioning end 41 is connected to the positioning pin 5, and an elastic reset member 6 is abutted between the positioning end 41 and the seat cushion plate 1. The pressing end 42 extends between the seat cushion plate 1 and the upper base plate 31, and the positioning pin 5 can be controlled to be inserted into or out of the lower through hole 331 through the pressing end 42.

[0039] Specifically, by pressing down the pressing end 42, the positioning end 41 will drive the positioning pin 5 to lift up and disengage from the lower through hole 331, thereby unlocking the upper base plate 31. The seat cushion plate 1 can be rotated by pushing the seat cushion plate 1 circumferentially. After pushing the seat cushion plate 1, the pressing rod 4 can be released. When the positioning pin 5 is lifted up, the elastic reset member 6 will be compressed. During the rotation of the seat cushion plate 1, the upper through hole 311 and the lower through hole 331 are staggered, and the elastic reset member 6 will be in a compressed state. A plurality of lower through holes 331 on the lower base plate 33 can be provided. After the seat cushion plate 1 is rotated into place, the upper through hole 311 is connected to the lower through hole 331, and the elastic reset member 6 automatically resets to drive the positioning pin 5 to move down and insert into the lower through hole 331, thereby re-positioning the seat cushion plate 1 and realizing the angle adjustment of the seat cushion plate 1. Key reference Figure 3 The lower bottom plate 33 is preferably provided with four centrally symmetrical lower through holes 331, which can be positioned at 90°, 180°, 270° and 360°. The state of the seat cushion plate 1 after rotating 90° is as follows: Fig.11 shown.

[0040] The middle part of the pressing rod 4 is bent so that the pressing end 42 is higher than the positioning end 41, which increases the upward stroke of the positioning pin 5 and makes pressing more labor-saving. Moreover, due to the setting of the elastic reset member 6, the length from the pressing end 42 to the middle part can be greater than the length from the positioning end 41 to the middle part, avoiding the pressing end 42 from falling under the influence of its own weight in normal state, thereby failing to lock the upper base plate 31.

[0041] Key References Figure 5-9 The limit block 7 can be detachably mounted on the upper base plate 31, and one end of the pressing rod 4 is located in the limit block 7. The limit block 7 can prevent the positioning pin 5 from falling out of the upper through hole 311. The pressing rod 4 can control the positioning pin 5 to limit and unlock the upper base plate 31 without being hinged to the upper base plate 31. The structure is simple, and there is no need to process pillars and hinge structures on the upper base plate 31. Moreover, the limit block 7 can be detachably mounted on the upper base plate 31. The limit block 7 and the pressing rod 4 are easy to disassemble and assemble, and customers can assemble them by themselves.

[0042] Specifically, the elastic reset member 6 can be an ordinary spring or a spring sheet, and the utility model is preferably a V-shaped spring, which is easy to disassemble and assemble. The two sides of the V-shaped spring are respectively in contact with the positioning pin 5 and the seat plate 1, and the top of the positioning pin 5 is provided with a vertical insertion hole 51. The lower end of the V-shaped spring is vertically extended downward to form a plug-in portion 61, and the plug-in portion 61 is inserted into the plug-in hole 51 to achieve contact.

[0043] The limit block 7 is provided with openings on both sides, and the positioning end 41 of the pressing rod 4 is inserted into the limit block 7 from the left side. The bottom wall of the limit block 7 is provided with a lower opening 72 connected to the upper through hole 311, and the top wall of the limit block 7 is provided with an upper opening 71 above the lower opening 72, and the plug-in portion 61 of the V-shaped spring is inserted into the insertion hole 51 through the upper opening 71; the side wall of the limit block 7 is provided with a limit hole 73, and a limit rod 74 is detachably installed in the limit hole 73, and the limit rod 74 is inserted into the limit block 7 and is located above the positioning pin 5 and the plug-in portion 61, which can limit the upward movement of the positioning pin 5 to prevent the positioning pin 5 from being separated from the upper through hole 311, and can also limit the plug-in portion 61 from being separated from the insertion hole 51, so that there is no need to hinge the pressing rod 4 with the upper base plate 31, and the pressing rod 4 can be removed after removing the limit rod 74. The limiting rod 74 can be a limiting screw or a limiting screw rod, which can be screwed with the limiting hole 73 for easy disassembly and assembly.

[0044] If the pressing rod 4 is connected to the positioning pin 5 as a whole, the positioning end 41 of the pressing rod 4 is directly inserted from the left side of the limit block 7 until the positioning pin 5 is inserted into the upper through hole 311 and the lower through hole 331, and then the V-shaped spring is installed from the upper opening 71; if the pressing rod 4 is connected to the positioning pin 5 separately, such as Figure 5 and Figure 7 As shown, it is preferred that a mounting hole 411 is provided on the positioning end 41 of the pressing rod 4, and a flange 52 is provided on the top periphery of the positioning pin 5, and the diameter of the flange 52 is larger than the diameter of the mounting hole 411. During installation, the positioning end 41 of the pressing rod 4 can be first inserted into the limit block 7 from the left side so that the mounting hole 411 is aligned with the upper opening 71 and the lower opening 72, and then the positioning pin 5 is inserted from the upper opening 71 into the mounting hole 411, the lower opening 72, the upper through hole 311 and the lower through hole 331, and then the plug-in portion 61 of the V-shaped spring is inserted from the upper opening 71 into the positioning block 7. The positioning pin 5 is inserted into the socket 51 at the top of the positioning pin 5, and finally the limiting rod 74 is installed to complete the installation. Since the diameter of the protruding edge 52 is larger than the diameter of the mounting hole 411, the positioning end 41 of the pressing rod 4 will drive the positioning pin 5 to rise when it rises. When installing the pressing rod 4, the positioning pin 5 can also be first installed into the mounting hole 411 of the positioning end 41, and then the positioning end 41 is inserted into the limiting block 7, and then the pressing rod 4 is moved downward to make the positioning pin 5 inserted into the upper through hole 311 and the lower through hole 331. Both assembly methods are acceptable, and the assembly method is relatively simple, and customers can assemble it by themselves.

[0045] The limit block 7 is installed on the upper base plate 31 by means of a fixing bolt 76 and a nut 77. A bolt fixing hole 75 is provided on the upper base plate 31 and the bottom wall of the limit block 7. The fixing bolt 76 passes through the bolt fixing hole 75 from bottom to top and enters the limit block 7 to be screwed with the nut 77, so that the limit block 7 can be installed. The limit block 7 can be removed by unscrewing the nut 77, which makes disassembly and assembly more convenient. The fixing bolt 76 not only has a fixing function, but also a limiting function. Figure 6 As shown, the bolt fixing hole 75 is preferably opened near the side wall of the limit block 7, and the lower side of the V-shaped spring is limited between the fixing bolt 76 and the side wall of the limit block 7 to avoid horizontal deviation of the V-shaped spring and ensure the reset ability of the V-shaped spring.

[0046] Further, such as Figure 8 As shown, the top wall of the limit block 7 is provided with a transverse hole 78 connecting the upper opening 71 and the right side of the limit block 7. After the plug-in portion 61 of the V-shaped spring is inserted into the plug hole 51 at the top of the positioning pin 5, the lower side of the V-shaped spring can extend into the limit block 7 from the transverse hole 78, thereby placing the lower side of the V-shaped spring between the fixing bolt 76 and the side wall of the limit block 7. The upper bottom end of the V-shaped spring is slightly bent to directly abut against the seat plate 1, and the V-shaped spring is also easy to install.

[0047] Key References Fig.10 The turntable 32 includes an upper turntable 321 and a lower turntable 322. The lower turntable 322 is provided with a plurality of ring-shaped arranged balls 323. The upper turntable 321 is made of metal material with a smooth surface, which can increase the smoothness of the rotation of the upper base plate 31. The lower turntable 322 is made of plastic material, which is easier to shape and convenient for embedding the balls 323.

[0048] There are two cross tube frames 8 and vertical tube frames 9 arranged in a tic-tac-toe pattern between the seat cushion plate and the upper base plate 31. The cross tube frames 8 are fixed above the vertical tube frames 9. Handrails 81 are provided at both ends of the cross tube frames 8. The rear end of the vertical tube frames 9 is provided with a backrest 91 on the rear side of the seat cushion plate. The installation of the cross tube frames 8 and the vertical tube frames 9 allows a certain space between the seat cushion plate 1 and the upper base plate 31. The pressing rod 4, the limit block 7 and the V-shaped spring can be installed in the space. The bottom of the left vertical tube frame 9 is provided with a clearance groove 92 for the pressing rod 4 to avoid failure of the pressing rod 4. In addition, the cross tube frames 8, the vertical tube frames 9, the support leg 2 and the rotating device 3 can be detachably connected, generally using a connecting piece threaded connection, which is convenient for users to assemble.

[0049] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.

Claims

1. A rotating structure of a bathing chair, characterized in that: It includes a seat plate, a supporting foot frame, a rotating device, a pressing rod, a positioning latch, an elastic reset member and a limit block; The rotating device comprises an upper bottom plate, a rotating disc, a lower bottom plate and a rotating shaft, wherein the lower bottom plate is fixed on the supporting leg frame, the rotating disc is rotatably arranged on the lower bottom plate through the rotating shaft, the upper bottom plate is arranged on the rotating disc and is pivotally connected to the rotating shaft, a plurality of balls are arranged on the rotating disc, and the seat plate is fixed on the upper bottom plate; The upper base plate is provided with an upper through hole on the outer periphery of the turntable, and the lower base plate is provided with a lower through hole at a position corresponding to the upper through hole, the positioning pin is inserted into the upper through hole, and the two ends of the pressing rod are respectively a positioning end and a pressing end, the positioning end is connected to the positioning pin, and an elastic reset member is abutted between the positioning end and the seat cushion plate, the pressing end extends between the seat cushion plate and the upper base plate, and the positioning pin is controlled by the pressing end to be inserted into or out of the lower through hole, thereby positioning or unlocking the upper base plate; The limit block is detachably mounted on the upper base plate, one end of the pressing rod is located in the limit block, and the limit block prevents the positioning pin from falling out of the upper through hole.

2. The rotating structure of a bathing chair as claimed in claim 1, characterized in that: The elastic return member is a V-shaped spring, and the two sides of the V-shaped spring are respectively in contact with the positioning pin and the seat plate. The top of the positioning pin is provided with a vertical socket, and the lower end of the V-shaped spring extends vertically downward to provide a plug-in portion, and the plug-in portion is inserted into the socket.

3. The rotating structure of a bathing chair as claimed in claim 2, characterized in that: The limit block is provided with openings on the left and right sides, the positioning end of the pressing rod is inserted into the limit block from the left side, the bottom wall of the limit block is provided with a lower opening connected to the upper through hole, the top wall of the limit block is provided with an upper opening above the lower opening, and the plug-in portion of the V-shaped spring is inserted into the plug hole through the upper opening; a limit hole is provided on the side wall of the limit block, a limit rod is detachably installed in the limit hole, and the limit rod is located above the positioning pin and the plug-in portion to limit the positioning pin from detaching from the upper through hole and the plug-in portion from detaching from the plug hole.

4. The rotating structure of a bathing chair as claimed in claim 3, characterized in that: A mounting hole is provided on the positioning end of the pressing rod, and a circle of convex edges is provided on the outer periphery of the top of the positioning pin, and the diameter of the convex edge is larger than the diameter of the mounting hole; when the positioning end of the pressing rod is inserted into the limit block from the left side to align the mounting hole with the upper opening and the lower opening, the positioning pin is inserted into the mounting hole, the lower opening, the upper through hole and the lower through hole from the upper opening.

5. A rotating structure of a bathing chair as claimed in claim 3 or 4, characterized in that: The limit block is installed on the upper base plate by fixing bolts and nuts. A bolt fixing hole is provided on the upper base plate and the bottom wall of the limit block. The bolt fixing hole is provided near the side wall of the limit block. The fixing bolt passes through the bolt fixing hole from bottom to top into the limit block and is threadedly connected with the nut. The lower side of the V-shaped spring is limited between the fixing bolt and the side wall of the limit block.

6. The rotating structure of a bathing chair as claimed in claim 2, characterized in that: The top wall of the limit block is provided with a transverse hole connecting the upper opening and the right side of the limit block. The lower side of the V-shaped spring extends into the limit block from the transverse hole and is located between the fixing bolt and the side wall of the limit block.

7. The rotating structure of a bathing chair according to claim 1, characterized in that: The turntable comprises an upper turntable and a lower turntable. The lower turntable is provided with a plurality of ring-shaped arranged balls. The upper turntable is made of metal material with a smooth surface, and the lower turntable is made of plastic material.

8. The rotating structure of a bathing chair as claimed in claim 1, characterized in that: The middle part of the pressing rod is bent so that the pressing end is higher than the positioning end.

9. The rotating structure of a bathing chair according to claim 1, characterized in that: The lower bottom plate is provided with four centrally symmetrical lower through holes on the outer periphery of the rotating disk.

10. The rotating structure of a bathing chair according to claim 1, characterized in that: Two transverse tube frames and a vertical tube frame arranged in a tic-tac-toe shape are also provided between the seat cushion plate and the upper base plate. The transverse tube frame is fixed above the vertical tube frame. Armrests are provided at both ends of the transverse tube frame. A backrest is provided at the rear end of the vertical tube frame on the rear side of the seat cushion plate. A making way groove for making way for a pressing rod is opened at the bottom of the left vertical tube frame.

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