Armrest overturning structure of bath chair

Abstract

The utility model provides an armrest overturning structure of a bath chair. The armrest overturning structure comprises a seat cushion plate, a supporting foot stool, an armrest supporting frame, an armrest, a rotary sleeve and a fixed sleeve, the seat cushion plate is arranged on the supporting foot stand, an armrest supporting frame is arranged between the seat cushion plate and the supporting foot stand, the two ends of the armrest are the rotating end and the positioning end respectively, the rotating end is rotationally arranged on the armrest supporting frame through a rotating sleeve, a limiting groove is formed in the rotating sleeve in the circumferential direction, and a limiting piece is arranged on the armrest supporting frame. The limiting piece is located in the limiting groove; the fixing sleeve is arranged on the armrest supporting frame, a fixing groove is formed in the fixing sleeve, a positioning hole is formed in the side wall of the fixing groove, a first telescopic bolt is arranged at the bottom of the fixing groove, and a second telescopic bolt is arranged on the periphery of the positioning end; according to the utility model, the problems that the armrest of the existing bath chair is difficult to turn over and the armrest is inconvenient to reset because the armrest is not provided with a limiting structure are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bathing chairs, and particularly relates to an armrest flip 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 due to their physical condition. The appearance of a bathing chair is similar to that of an ordinary chair, with armrests. The armrests are usually fixed and cannot be turned over. In addition, the armrests are set on the left and right sides of the seat cushion, which reduces the space for movement. The bather can only sit on the seat cushion from the front side, and generally needs to adjust his posture with the help of a caregiver before sitting on the seat cushion. The space for the bather to enter and exit the bathing chair is limited, making it extremely inconvenient to use.

[0003] The armrests of existing bathing chairs are also arranged in a foldable structure. Although the armrests can be turned over and lifted up, this structure is generally for folding the armrests for storing the bathing chair. It is laborious to turn over the armrests, and there is no limit structure. The armrests are easy to over-turn, and it is also inconvenient to reset the armrests. Utility Model Content

[0004] The utility model aims to provide an armrest flipping structure for a bathing chair, so as to solve the problems that the armrests of the existing bathing chairs are difficult to flip and the armrests are inconvenient to reset because there is no limit structure.

[0005] To achieve the above-mentioned purpose, the solution of the utility model is: an armrest flip structure of a bathing chair, comprising a seat pad, a support foot frame, an armrest support frame, an armrest, a rotating sleeve, and a fixed sleeve;

[0006] The seat cushion plate is arranged on the supporting foot frame and an armrest supporting frame is arranged between the seat cushion plate and the supporting foot frame, and the armrest is rotatably arranged on the armrest supporting frame and is located on both sides of the seat cushion plate;

[0007] The armrest is in an inverted U shape, and the two ends of the armrest are respectively a rotating end and a positioning end, the rotating end is rotatably arranged on the armrest support frame through a rotating sleeve, a limiting groove is circumferentially provided on the rotating sleeve, and a limiting member is provided on the armrest support frame, and the limiting member is located in the limiting groove. When the armrest is flipped, the limiting member abuts against one end of the limiting groove to limit the flipping angle of the armrest;

[0008] The fixing sleeve is arranged on the armrest support frame, the fixing sleeve is provided with a fixing groove, the side wall of the fixing groove is provided with a positioning hole, the bottom of the fixing groove is provided with a first telescopic latch, the outer periphery of the positioning end is provided with a second telescopic latch, the positioning end is inserted into the fixing groove and abuts against the first telescopic latch, and the second telescopic latch is inserted into the positioning hole to fix the positioning end;

[0009] The positioning hole is provided with a switch button, which abuts against the second telescopic latch. When the switch button is pressed to make the second telescopic latch withdraw from the positioning hole, the positioning end is pushed by the first telescopic latch to disengage from the fixing groove.

[0010] Furthermore, the armrest support frame includes a front transverse tube and a rear transverse tube arranged in front and back, the length of the front transverse tube and the rear transverse tube is greater than the length of the seat cushion, both ends of the rear transverse tube are respectively provided with a rotating sleeve, and both ends of the front transverse tube are respectively provided with a fixed sleeve, and the armrest is flipped backward and lifted and flipped forward to reset.

[0011] Furthermore, a plug-in sleeve is radially extended from the middle part of the rotating sleeve, and the rotating end of the armrest is plugged and fixed in the plug-in sleeve. A limiting groove is circumferentially provided in the middle part of the rotating sleeve, and a limiting member is correspondingly provided at the end of the transverse tube in the limiting groove. The limiting groove and the limiting member cooperate to limit the rotation angle of the armrest to be greater than 90°.

[0012] Furthermore, the limiting member is a limiting screw, a screw mounting hole is provided at a position of the rear cross tube corresponding to the limiting groove, and the limiting screw is installed in the screw mounting hole.

[0013] Furthermore, the fixing sleeve is arranged on the front cross tube, and a first telescopic hole is opened on the fixing sleeve and the front cross tube, the first telescopic pin is arranged in the first telescopic hole and abuts against the inner wall of the front cross tube with a first elastic member; the front end of the armrest extends horizontally backward to form a positioning end, and a second telescopic hole is opened on the side of the positioning end, and the second telescopic pin is arranged in the second telescopic hole and abuts against the inner wall of the positioning end with a second elastic member.

[0014] Furthermore, the first elastic member and the second elastic member are V-shaped springs, one end of which abuts against the inner wall of the front cross tube or the positioning end, and the other end is provided with a vertical plug-in portion, and one end of the first telescopic pin and the second telescopic pin is provided with a socket that cooperates with the plug-in portion.

[0015] Furthermore, a circle of flange is radially protruded from one end of the first telescopic plug and the second telescopic plug, and the diameter of the flange is larger than the diameter of the first telescopic hole and the second telescopic hole.

[0016] Furthermore, a pivot groove is provided on the outer side of the fixing sleeve, the upper part of the pivot groove is connected to the positioning hole, the upper part of the switch button is abutted against the second telescopic pin, and a rotating shaft is provided at the lower part of the pivot groove, and the lower part of the switch button is rotatably arranged in the pivot groove through the rotating shaft.

[0017] Furthermore, a button mark is provided on the outer side surface of the upper portion of the switch button.

[0018] Furthermore, the side wall surface of the fixing groove above the positioning hole is an inclined surface.

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

[0020] The utility model provides a rotating sleeve and a fixed sleeve on the armrest support frame, and the rotating end of the armrest is rotatably arranged on the armrest support frame through the rotating sleeve, and the armrests on both sides of the seat cushion plate can be flipped upward and lifted up. After the armrests are lifted up, there are no armrests limiting the positions of the two sides of the seat cushion plate, and a bather has a large space for moving in and out of the seat cushion plate, and can sit on the seat cushion plate from the left, right, and front sides of the seat cushion plate, which is more convenient to use.

[0021] The fixing sleeve is provided with a fixing groove for fixing the positioning end, and the side wall of the fixing groove is provided with a positioning hole. The bottom of the fixing groove is provided with a first telescopic pin, and the outer periphery of the positioning end is provided with a second telescopic pin. When the armrest is flipped down, the positioning end of the armrest will be stuck in the fixing groove and abut against the first telescopic pin. At the same time, the second telescopic pin will be stuck in the positioning hole to fix the positioning end in the fixing groove. The armrest is horizontally fixed on both sides of the seat for bathers to use by hand. The positioning hole is provided with a switch button, and the switch button abuts against the second telescopic pin. Pressing the switch button can push the second telescopic pin to retract and disengage from the positioning hole. At the same time, the first telescopic rod will extend out to push the positioning end, so that the positioning end disengages from the fixing groove, unlocking the armrest. Lifting the armrest can push the armrest to flip over, thereby freeing up space on the side of the seat cushion. It is very convenient to unlock and fix the armrest.

[0022] The utility model also provides a limit groove on the rotating sleeve, and a limit piece is convexly provided on the armrest support frame. After the armrest is flipped to make room, the limit piece will abut against one end of the limit groove to limit the armrest from continuing to rotate, thereby preventing the armrest from flipping over and affecting the restoration of the armrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of the utility model when the armrest is in a lowered state;

[0024] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle part;

[0025] Figure 3 It is a structural schematic diagram of the handrail of the utility model in the lifted state;

[0026] Figure 4 It is an exploded view of the parts of the utility model;

[0027] Figure 5 It is a cross-sectional view of the fixed positioning end of the fixed sleeve of the utility model;

[0028] Figure 6 The structure of the fixed sleeve of the utility model is shown in FIG. Figure 1 ;

[0029] Figure 7 The structure of the fixed sleeve of the utility model is shown in FIG. Figure 2 ;

[0030] Figure 8 It is a structural schematic diagram of the switch button of the utility model.

[0031] Description of labels:

[0032] 1. Seat plate; 2. Supporting foot frame; 3. Armrest supporting frame; 31. Front transverse tube; 32. Rear transverse tube; 321. Limiting member; 4. Armrest; 41. Rotating end; 42. Positioning end; 421. Second telescopic latch; 422. Second telescopic hole; 423. Second elastic member; 5. Rotating sleeve; 51. Limiting groove; 52. Plug-in sleeve; 6. Fixed sleeve; 61. Fixed groove; 611. Inclined surface; 62. Positioning hole; 63. First telescopic latch; 631. Protruding edge; 632. Plug-in hole; 64. Switch button; 641. Button mark; 65. First telescopic hole; 66. First elastic member; 661. Plug-in part; 67. Pivot groove; 68. Rotating shaft; 7. Backrest. DETAILED DESCRIPTION

[0033] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1-8 As shown, the utility model provides an armrest flip structure of a bathing chair, comprising a seat plate 1, a support leg 2, an armrest support frame 3, an armrest 4, a rotating sleeve 5, and a fixed sleeve 6; the seat plate 1 is arranged on the support leg 2 and an armrest support frame 3 is arranged between the seat plate 1 and the support leg 2, and the armrest 4 is rotatably arranged on the armrest support frame 3 and is located on both sides of the seat plate 1; the armrest 4 is arranged in a flippable structure to provide a larger activity space for the bather to enter and exit the seat plate 1, and the connection structure between the armrest 4 and the armrest support frame 3 is described in detail below. A rotating mechanism and a translation mechanism are also arranged between the armrest support frame 3 and the support leg 2, which can drive the armrest support frame 3 and the seat plate 1 to rotate and slide left and right, and can adjust the bathing orientation of the bather.

[0035] Key References Figure 1-4The armrest 4 is in an inverted U shape, and the two ends of the armrest 4 are respectively a rotating end 41 and a positioning end 42. The rotating end 41 is rotatably arranged on the armrest support frame 3 through a rotating sleeve 5. The armrest 4 can rotate relative to the armrest support frame 3. For example, the armrest 4 is rotated upward and lifted to free up the activity space on the left and right sides of the seat cushion 1, so that the bather can enter and exit the seat cushion 1 conveniently. Moreover, a limiting groove 51 is provided on the rotating sleeve 5 in the circumferential direction, and a limiting member 321 is provided on the armrest support frame 3. The limiting member 321 is located in the limiting groove 51. When the armrest 4 is lifted up to free up enough activity space, the limiting member 321 will abut against one end of the limiting groove 51 to limit the armrest 4 from further turning over, thereby preventing the armrest 4 from turning over excessively and affecting the reset of the armrest 4. When the armrest 4 is lowered to be parallel to the seat cushion 1, the fixing sleeve 6 will fix the positioning end 42. The fixing structure will be described in detail later. The armrest 4 will not continue to rotate, so when the armrest 4 is lowered, the limiting member 321 can abut against the other end of the limiting groove 51, or it may not abut against it, and it will not affect it.

[0036] Specifically, the armrest support frame 3 includes a front transverse tube 31 and a rear transverse tube 32 arranged in a front-to-back arrangement, the lengths of the front transverse tube 31 and the rear transverse tube 32 are greater than the length of the seat cushion 1, both ends of the front transverse tube 31 and the rear transverse tube 32 are exposed on both sides of the seat cushion 1, and both ends of the rear transverse tube 32 are respectively provided with a rotating sleeve 5, and both ends of the front transverse tube 31 are respectively provided with a fixed sleeve 6. This arrangement allows the armrest 4 to be lifted by flipping it backward, and the armrest 4 to be lowered and reset by flipping it forward, which is convenient for the bather and the caregiver to adjust.

[0037] A plug-in sleeve 52 is radially extended from the middle part of the rotating sleeve 5. The rotating sleeve 5 is a structure similar to a tee. The rotating sleeve 5 is sleeved on the end of the rear cross tube 32. The rotating end 41 of the handrail 4 is plugged and fixed in the plug-in sleeve 52. A limiting groove 51 is circumferentially provided in the middle part of the rotating sleeve 5. A limiting member 321 is correspondingly provided at the end of the cross tube in the limiting groove 51. The limiting member 321 can be a limiting rod or a limiting protrusion protruding from the cross tube, or a limiting screw. The present embodiment adopts a limiting screw, that is, a screw mounting hole is provided at a position corresponding to the limiting groove 51 on the rear cross tube 32, and the limiting screw is installed in the screw mounting hole. This arrangement is convenient for processing and installation. When installing the rotating sleeve 5, first put the rotating sleeve 5 on the end of the horizontal pipe, align the limiting groove 51 with the screw installation hole, and then install the limiting screw to fix the rotating sleeve 5. Then, insert the rotating end 41 of the handrail 4 into the plug-in sleeve 52 to install the handrail 4 on the handrail support frame 3. The rotating end 41 and the plug-in sleeve 52 can also be connected by screws to facilitate disassembly and assembly.

[0038] The limiting groove 51 cooperates with the limiting member 321 to limit the maximum rotation angle of the armrest 4 to be slightly greater than 90°. Figure 3As shown, a backrest 7 is further provided on the rear side of the seat cushion plate 1. When the maximum rotation angle of the armrest 4 is slightly greater than 90°, the armrest 4 can be flipped to a position slightly offset to the rear side of the backrest 7. A smaller angle is formed between the armrest 4 and the backrest 7. At this time, the armrest 4 should continue to flip backwards due to the effect of gravity, but is limited by the limiting member 321. The armrest 4 can thus be maintained in this position. There is no need to set a structure for fixing the armrest 4 in this state. Moreover, the armrest 4 is also convenient for resetting in this position. The armrest 4 can be reset by flipping it downward.

[0039] Key References Figure 4-7 The utility model can easily lock and unlock the positioning end 42 of the armrest 4 through the fixing sleeve 6. Specifically, the fixing sleeve 6 is sleeved on the front cross tube 31. The fixing sleeve 6 is provided with a fixing groove 61, and the fixing groove 61 is used to fix the positioning end 42 of the armrest 4. The side wall of the fixing groove 61 is provided with a positioning hole 62. The bottom of the fixing groove 61 is provided with a first telescopic latch 63. The outer periphery of the positioning end 42 is provided with a second telescopic latch 421. When the positioning end 42 is inserted into the fixing groove 61 and abuts against the first telescopic latch 63, the second telescopic latch 421 is inserted into the positioning hole 62 to fix the positioning end 42. The positioning hole 62 is provided with a switch button 64. The switch button The switch button 64 abuts against the second telescopic latch 421. Pressing the switch button 64 can push the second telescopic latch 421 to exit the positioning hole 62. At the same time, the positioning end 42 is pushed by the first telescopic latch 63 to disengage from the fixing groove 61, so that pressing the switch button 64 can release the lock of the positioning end 42. The armrest 4 can be turned over after being unlocked. To reset the armrest 4, just flip the armrest 4 downward, the positioning end 42 of the armrest 4 will be stuck in the fixing groove 61 and abut against the first telescopic latch 63, and the second telescopic latch 421 will be stuck in the positioning hole 62 again to fix the positioning end 42 in the fixing groove 61, so that the armrest 4 is horizontally fixed on both sides of the seat cushion 1 for bathers to use by hand.

[0040] The fixing sleeve 6 and the front cross tube 31 are provided with a first telescopic hole 65 , the first telescopic pin 63 is arranged in the first telescopic hole 65 and abuts against the inner wall of the front cross tube 31 with a first elastic member 66 , and the first telescopic pin 63 can extend or retract into the first telescopic hole 65 through the first elastic member 66 .

[0041] The front end of the armrest 4 extends horizontally backward to form a positioning end 42. The outer periphery of the positioning end 42 cooperates with the fixing groove 61. The top and front and rear sides of the fixing groove 61 are open, and the cross section is circular. The side of the positioning end 42 is provided with a second telescopic hole 422. The second telescopic plug 421 is arranged in the second telescopic hole 422 and abuts against the inner wall of the positioning end 42 with a second elastic member 423. The structure of the second telescopic plug 421 is the same as that of the first telescopic plug 63. The second telescopic plug 421 can also extend or retract into the second telescopic hole 422 through the second elastic member 423. In addition, a circle of convex edges 631 are radially protruded at one end of the first telescopic plug 63 and the second telescopic plug 421. The diameter of the convex edge 631 is larger than the diameter of the first telescopic hole 65 and the second telescopic hole 422. The convex edge 631 can prevent the first telescopic plug 63 and the second telescopic plug 421 from slipping out of the first telescopic hole 65 and the second telescopic hole 422, respectively.

[0042] Furthermore, the first elastic member 66 and the second elastic member 423 can be a spring or a spring sheet with a reset function. The utility model is preferably a V-shaped spring for easy installation. One end of the V-shaped spring is slightly bent to abut against the inner wall of the front cross tube 31 or the positioning end 42, and the other end is provided with a vertical plug-in portion 661. One end of the first telescopic plug 63 and the second telescopic plug 421 is provided with a plug hole 632 that matches the plug-in portion 661. Taking the installation of the first telescopic plug 63 as an example, after the plug-in portion 661 is inserted into the plug hole 632, the first telescopic plug 63 is placed in the front cross tube 31 and aligned with the first telescopic hole 65, and the first telescopic plug 63 can be installed.

[0043] Key References Figure 5-8 The outer side of the fixing sleeve 6 is provided with a pivot groove 67, and the upper part of the pivot groove 67 is connected with the positioning hole 62. The upper part of the switch button 64 is in contact with the second telescopic latch 421. The lower part of the pivot groove 67 is provided with a rotating shaft 68. The lower part of the switch button 64 is rotatably arranged in the pivot groove 67 through the rotating shaft 68. Pressing the upper part of the switch button 64 can push the second telescopic latch 421 to withdraw from the positioning hole 62. When the positioning end 42 is re-inserted into the fixing groove 61, the extension of the second telescopic latch 421 will push the switch button 64 to reset. The side wall surface of the fixing groove 61 above the positioning hole 62 is preferably a slope 611. The other end of the second telescopic latch 421 can easily slide over the slope 611 into the positioning hole 62. The other ends of the first telescopic latch 63 and the second telescopic latch 421 are both hemispherical, which can reduce wear and easily push the second telescopic latch 421 to extend and retract. Figure 8 As shown, in order to facilitate the bather to identify that the switch button 64 is the button for unlocking the handrail 4, a button mark 641 can be set on the outer side of the upper part of the switch button 64, for example, a circular protrusion similar to a circular button is set to remind the bather to press this position.

[0044] 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 flip structure of an armrest of a bathing chair, characterized in that: It includes a seat cushion plate, a supporting foot frame, an armrest supporting frame, an armrest, a rotating sleeve, and a fixed sleeve; The seat cushion plate is arranged on the supporting foot frame and an armrest supporting frame is arranged between the seat cushion plate and the supporting foot frame, and the armrest is rotatably arranged on the armrest supporting frame and is located on both sides of the seat cushion plate; The armrest is in an inverted U shape, and the two ends of the armrest are respectively a rotating end and a positioning end, the rotating end is rotatably arranged on the armrest support frame through a rotating sleeve, a limiting groove is circumferentially provided on the rotating sleeve, and a limiting member is provided on the armrest support frame, and the limiting member is located in the limiting groove. When the armrest is flipped, the limiting member abuts against one end of the limiting groove to limit the flipping angle of the armrest; The fixing sleeve is arranged on the armrest support frame, the fixing sleeve is provided with a fixing groove, the side wall of the fixing groove is provided with a positioning hole, the bottom of the fixing groove is provided with a first telescopic latch, the outer periphery of the positioning end is provided with a second telescopic latch, the positioning end is inserted into the fixing groove and abuts against the first telescopic latch, and the second telescopic latch is inserted into the positioning hole to fix the positioning end; The positioning hole is provided with a switch button, which abuts against the second telescopic latch. When the switch button is pressed to make the second telescopic latch withdraw from the positioning hole, the positioning end is pushed by the first telescopic latch to disengage from the fixing groove.

2. The armrest flip structure of a bathing chair as claimed in claim 1, characterized in that: The armrest support frame includes a front transverse tube and a rear transverse tube arranged in front and back, the lengths of the front transverse tube and the rear transverse tube are greater than the length of the seat cushion plate, both ends of the rear transverse tube are respectively provided with a rotating sleeve, and both ends of the front transverse tube are respectively provided with a fixed sleeve, and the armrest is flipped backward and lifted and flipped forward to reset.

3. The armrest flip structure of a bathing chair as claimed in claim 2, characterized in that: A plug-in sleeve is radially extended from the middle part of the rotating sleeve, and the rotating end of the armrest is plugged and fixed in the plug-in sleeve. A limiting groove is circumferentially provided in the middle part of the rotating sleeve, and a limiting piece is correspondingly provided at the end of the transverse tube in the limiting groove. The limiting groove and the limiting piece cooperate to limit the rotation angle of the armrest to be greater than 90°.

4. The armrest flip structure of a bathing chair as claimed in claim 3, characterized in that: The limiting member is a limiting screw, and a screw mounting hole is provided at a position of the rear cross tube corresponding to the limiting groove, and the limiting screw is installed in the screw mounting hole.

5. The armrest flip structure of a bathing chair as claimed in claim 2, characterized in that: The fixing sleeve is arranged on the front cross tube, and a first telescopic hole is opened on the fixing sleeve and the front cross tube, the first telescopic pin is arranged in the first telescopic hole and abuts against the inner wall of the front cross tube with a first elastic member; the front end of the armrest extends horizontally backward to form a positioning end, and a second telescopic hole is opened on the side of the positioning end, the second telescopic pin is arranged in the second telescopic hole and abuts against the inner wall of the positioning end with a second elastic member.

6. The armrest flip structure of a bathing chair as claimed in claim 5, characterized in that: The first elastic member and the second elastic member are V-shaped springs, one end of which abuts against the inner wall of the front cross tube or the positioning end, and the other end is provided with a vertical plug-in portion, and one end of the first telescopic pin and the second telescopic pin is internally provided with a plug hole that cooperates with the plug-in portion.

7. The armrest flip structure of a bathing chair as claimed in claim 5 or 6, characterized in that: A circle of flange is radially protruded from one end of the first telescopic plug and the second telescopic plug, and the diameter of the flange is larger than the diameter of the first telescopic hole and the second telescopic hole.

8. The armrest flip structure of a bathing chair as claimed in claim 7, characterized in that: A pivot groove is provided on the outer side of the fixing sleeve, the upper part of the pivot groove is connected with the positioning hole, the upper part of the switch button is in contact with the second telescopic pin, the lower part of the pivot groove is provided with a rotating shaft, and the lower part of the switch button is rotatably arranged in the pivot groove through the rotating shaft.

9. The armrest flip structure of a bathing chair as claimed in claim 8, characterized in that: A button mark is arranged on the outer side surface of the upper part of the switch button.

10. The armrest flip structure of a bathing chair as claimed in claim 1, characterized in that: The side wall surface of the fixing groove above the positioning hole is an inclined surface.

Images