Folding nursing chair

Abstract

The invention discloses a folding nursing chair, and belongs to the field of nursing instruments. A folding type nursing chair comprises a chair seat, a first chair leg, a second chair leg, a third chair leg and a fourth chair leg, the second chair leg is rotationally connected to the first chair leg through a second rotating shaft, and the distance between the second rotating shaft and the lowest point of the first chair leg is equal to the distance between the second rotating shaft and the lowest point of the second chair leg; the backrest frame is rotationally connected to the chair seat through a third rotating shaft; the armrest is rotationally connected to the backrest frame through a fourth rotating shaft, and the second chair leg is rotationally connected to the armrest through a fifth rotating shaft; the linkage piece is rotationally connected to the chair seat through a sixth rotating shaft and rotationally connected to the second chair leg through a seventh rotating shaft. The folding nursing chair has the advantages that folding of the nursing chair is achieved, and the use experience is improved.

Description

Technical Field

[0001] The present application relates to the field of nursing equipment, and in particular to a foldable nursing chair. Background Art

[0002] With the serious problem of population aging, more and more elderly people need long-term care at home. Due to the decline of physical functions and inconvenience in movement, the elderly need more care and auxiliary equipment to improve their quality of life. Chronic patients and patients in rehabilitation also have the problem of inconvenience in movement. Such people often need additional assistance and support when bathing to ensure safety and comfort. As an important nursing equipment, nursing bathing chairs can help patients with inconvenience in movement to complete the basic life needs of bathing safely and comfortably.

[0003] Nursing chairs are placed in the bathroom for a long time, but the bathroom space in general households is small. The nursing chair has a fixed structure and occupies a large space. The nursing chair will cause inconvenience in using the bathroom in scenarios other than for patients with limited mobility, reducing the user experience. Summary of the invention

[0004] In order to improve the user experience, the present application provides a foldable nursing chair.

[0005] The foldable nursing chair provided in this application adopts the following technical solution: A foldable nursing chair, comprising a seat and: A first chair leg, rotatably connected to the chair seat via a first rotating shaft; A second chair leg is rotatably connected to the first chair leg via a second rotating shaft, wherein the distance between the second rotating shaft and the lowest point of the first chair leg is equal to the distance between the second rotating shaft and the lowest point of the second chair leg; A backrest frame, rotatably connected to the seat via a third rotating shaft; An armrest is rotatably connected to the backrest frame via a fourth rotating shaft, and the second chair leg is rotatably connected to the armrest via a fifth rotating shaft; The linkage member is rotationally connected to the chair seat via a sixth rotating shaft and is rotationally connected to the second chair leg via a seventh rotating shaft.

[0006] By adopting the above technical solution, the nursing chair can be folded in linkage, and the second rotating shaft serves as the rotation center point of the first and second chair legs, ensuring that the first and second chair legs can be retracted and extended at the same angle, so that the angles of the first and second chair legs are consistent, so that the nursing chair can remain standing in the folded state without leaning, which is more practical. In addition, the first rotating shaft, the third rotating shaft, the fourth rotating shaft, and the fifth rotating shaft form a quadrilateral movement. During the folding process, whether it is lifting up the armrest or the seat, or flipping down the backrest frame, the entire nursing chair can be folded in linkage. The folding action is convenient and quick, and the overall fit is higher and the size is smaller after folding, thereby reducing the space occupied by the nursing chair when not in use and improving the user experience.

[0007] Optionally, the second chair leg is fixedly connected to a supporting member, and the supporting member is used to support or clamp the armrest.

[0008] By adopting the above technical solution, the downward tilt of the handrail is restricted, so as to improve the stability of the handrail.

[0009] Optionally, the armrest is fixedly connected with a positioning block, the supporting member is provided with a positioning groove, and the positioning block is clamped to the supporting member through the positioning groove.

[0010] By adopting the above technical solution, the armrest cannot be easily rotated by an upward external force, and the user needs to exert force to release the clamping connection between the positioning block and the positioning groove before the nursing chair can be folded, thereby further improving the stability of the armrest.

[0011] Optionally, the positioning block is provided with a card interface, and the supporting member is provided with a card block in the positioning groove, the card block is carded with the card interface, the card block and the positioning block are both provided with inclined surfaces that interfere with each other, the card block is fixedly connected with a connecting block, the connecting block is slidably connected to the supporting member, and the supporting member is provided with an elastic member for driving the connecting block to slide.

[0012] By adopting the above technical solution, the movement of the positioning block is further restricted by utilizing the clamping cooperation between the clamping block and the clamping interface, thereby improving the stability of the armrest.

[0013] Optionally, the first chair leg includes a first supporting portion and a first bending portion, the first bending portion is bent and fixedly connected to the first supporting portion, the first supporting portion is rotatably connected to the seat via a first rotating shaft, the second chair leg includes a second supporting portion and a second bending portion, the second bending portion is bent and fixedly connected to the second supporting portion, the second supporting portion is rotatably connected to the linkage member via a seventh rotating shaft, the second bending portion is rotatably connected to the first bending portion via a second rotating shaft, the second bending portion is rotatably connected to the armrest via a fifth rotating shaft, and the supporting member is arranged at the second bending portion.

[0014] By adopting the above technical solution and providing the first bending portion and the second bending portion, at the same seat height, the first support portion and the second support portion have a larger inclination angle and a smaller opening area, thereby reducing the occupied space.

[0015] Optionally, when the nursing chair is in the open state, the height of the sixth rotating shaft is higher than the height of the seventh rotating shaft, and the sixth rotating shaft is located between the first chair foot and the second chair foot.

[0016] By adopting the above technical solution, during the folding process, the second chair leg is flipped and the seat is folded by pushing the linkage part at the same time, so that the seat and the armrest are closer, thereby improving the regularity of the nursing chair after folding.

[0017] Optionally, when the nursing chair is in a folded state, a plane formed by the first rotating shaft and the fifth rotating shaft is parallel to an extension direction of the first supporting portion.

[0018] By adopting the above technical solution, the fit between the seat, armrests and backrest frame is further improved, and the center of gravity of the nursing chair is balanced to improve stability, so that the folded nursing chair is not easy to tip over even with a little external force when standing, which is safer.

[0019] Optionally, the second chair leg is provided with an extension piece, the linkage piece is rotatably connected to the extension piece via a seventh rotating shaft, and the extension piece is used to support or clamp the chair seat.

[0020] By adopting the above technical solution, the extension piece supports the seat, thereby improving the stability of the nursing chair when it is in the open state.

[0021] Optionally, an adjustment cylinder is sleeved on the outer side of the first support part and the second support part, and the adjustment cylinder is slidably connected to the first support part or the second support part. A fixing component is arranged between the adjustment cylinder and the first support part or the second support part, and the fixing component is used to fix the relative position between the adjustment cylinder and the first support part or the second support part.

[0022] By adopting the above technical solution, the height of the first chair leg and the second chair leg can be adjusted, thereby adjusting the height of the seat to adapt to the height characteristics of different users.

[0023] Optionally, the chair seat is provided with a seat plate, and the seat plate is provided with a groove.

[0024] By adopting the above technical solution, the nursing chair is used as a bathing chair to meet the bathing and care needs of the user.

[0025] In summary, this application has the following beneficial effects: 1. The folding of the nursing chair of this application is realized by linkage. The second rotating shaft serves as the rotation center point of the first and second chair legs, ensuring that the first and second chair legs can be retracted and extended at the same angle, so that the angles of the first and second chair legs are consistent, so that the nursing chair can remain standing in the folded state without leaning, which is more practical. In addition, the first rotating shaft, the third rotating shaft, the fourth rotating shaft, and the fifth rotating shaft form a quadrilateral movement. During the folding process, whether it is lifting up the armrest or the seat, or flipping down the backrest frame, the entire nursing chair can be folded in linkage. The folding action is convenient and quick, and the overall fit is higher and the size is smaller after folding, thereby reducing the space occupied by the nursing chair when not in use and improving the user experience.

[0026] 2. Through the position coordination between each shaft and the driving force of the linkage, the angle change of the seat and the armrest is basically close when folded, the seat, armrest and backrest frame are more closely fitted, and the center of gravity of the nursing chair is balanced, which not only further reduces the size of the nursing chair in the folded state, but also improves the stability, so that the folded nursing chair is not easy to tip over when standing even with a little external force, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of the nursing chair in the open state according to an embodiment of the present application.

[0028] Figure 2 It is a partial three-dimensional structural diagram of the nursing chair in the open state according to an embodiment of the present application.

[0029] Figure 3 It is a three-dimensional structural diagram of the nursing chair in the folded state according to an embodiment of the present application.

[0030] Figure 4 It is a plan view of the nursing chair in the open state according to an embodiment of the present application.

[0031] Figure 5 It is a plan view of the structure of the nursing chair in the folded state according to an embodiment of the present application.

[0032] Figure 6 It is a three-dimensional structural diagram of the handrail and the supporting member of the embodiment of the present application.

[0033] Figure 7 It is a cross-sectional structural diagram of the handrail and the supporting member of the embodiment of the present application.

[0034] Description of reference numerals: 1. Seat; 11. Seat board; 12. Groove; 2. Backrest; 3. Armrest; 31. Positioning block; 311. Card interface; 32. Inclined surface; 4. First chair leg; 41. First supporting portion; 42. First bending portion; 5. Second chair leg; 51. Second supporting portion; 511. Extension piece; 52. Second bending portion; 6. Adjustment cylinder; 61. Fixing hole; 62. Fixing spring block; 7. Supporting member; 71. Positioning groove; 72. Card connection block; 73. Connecting block; 74. Press cover; 75. Elastic member; 8. Linkage member; a. First rotating shaft; b. Second rotating shaft; c. Third rotating shaft; d. Fourth rotating shaft; e. Fifth rotating shaft; f. Sixth rotating shaft; g. Seventh rotating shaft. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-7 This application is described in further detail.

[0036] The present application embodiment discloses a foldable nursing chair. Figure 1 As shown, a foldable nursing chair includes a seat 1, a backrest frame 2, an armrest 3, a first leg 4, a second leg 5 and a linkage 8. The seat 1, the backrest frame 2 and the armrest 3 constitute a basic structure for supporting the user's body, and the first leg 4, the second leg 5 and the linkage 8 constitute a function of supporting the above basic structure and realizing folding.

[0037] The seat 1 is used to support the user's buttocks. In other embodiments, the seat 1 can be provided with a toilet ring for the user to use when going to the toilet; in this embodiment, the seat 1 can be provided with a seat board 11 for the user to use when taking a bath. The load-bearing surface of the seat board 11 is provided with a groove 12, and the groove 12 can be used for bath water to flow away, and the shower head during bathing can be extended into the groove 12 to clean the user's private parts.

[0038] like Figure 1 and Figure 2 As shown, the first chair leg 4 is rotatably connected to the seat 1 via a first rotating shaft a, and the second chair leg 5 is rotatably connected to the first chair leg 4 via a second rotating shaft b. The first chair leg 4 and the second chair leg 5 can both be rod-shaped structures or plate-shaped structures. There are two first chair legs 4 and two second chair legs 5, and the two first chair legs 4 are respectively located on both sides of the seat 1, and the two second chair legs 5 are respectively located on both sides of the seat 1. The direction faced by the user when sitting on the seat 1 is taken as the front. For the part located below the seat 1, the second chair leg 5 is located in front of the first chair leg 4.

[0039] The second rotation axis b serves as the hinge point between the first chair leg 4 and the second chair leg 5. The first chair leg 4 and the second chair leg 5 will rotate around the second rotation axis b at the same time. In this embodiment, the distance between the second rotation axis b and the lowest point of the first chair leg 4 is equal to the distance between the second rotation axis b and the lowest point of the second chair leg 5, ensuring that the first chair leg 4 and the second chair leg 5 can be retracted and extended at the same angle, achieving the same angle between the first chair leg 4 and the second chair leg 5, so that the nursing chair can remain standing without leaning in the folded state.

[0040] Specifically, the first chair leg 4 includes a first supporting portion 41 and a first bending portion 42, the first bending portion 42 is bent and fixedly connected to the first supporting portion 41, so that an obtuse angle is formed between the first bending portion 42 and the first supporting portion 41, the first bending portion 42 is located above the seat 1, and the first supporting portion 41 is rotatably connected to the seat 1 via a first rotating shaft a, and the second chair leg 5 includes a second supporting portion 51 and a second bending portion 52, the second bending portion 52 is bent and fixedly connected to the second supporting portion 51, so that an obtuse angle is formed between the second bending portion 52 and the second supporting portion 51, the second bending portion 52 is located above the seat 1, and the second bending portion 52 is rotatably connected to the first bending portion 42 via a second rotating shaft b.

[0041] The first bending portion 42 and the second bending portion 52 are provided so that, at the same height of the seat 1 , the first supporting portion 41 and the second supporting portion 51 have a larger inclination angle and a smaller opening area, thereby reducing the occupied space.

[0042] An adjustment cylinder 6 is sleeved on the outer side of the first support part 41 and the second support part 51. The adjustment cylinder 6 is slidably connected to the first support part 41 or the second support part 51. A fixing component is arranged between the adjustment cylinder 6 and the first support part 41 or the second support part 51. The fixing component is used to fix the relative position between the adjustment cylinder 6 and the first support part 41 or the second support part 51 to achieve the height adjustment of the first chair leg 4 and the second chair leg 5.

[0043] The fixing assembly includes a fixing spring block 62 and a spring. The side walls of the first support portion 41 and the second support portion 51 are provided with storage grooves for placing the fixing spring block 62 and the spring. The adjusting cylinder 6 is provided with a plurality of fixing holes 61. Under the elastic force of the spring, the fixing spring block 62 is partially engaged in the fixing hole 61 to achieve the fixation between the adjusting cylinder 6 and the first support portion 41 or the second support portion 51. According to the different engaged fixing holes 61, the height of the first chair leg 4 and the second chair leg 5 can be adjusted, thereby adjusting the height of the seat 1 to adapt to the height of the user.

[0044] The backrest frame 2 is rotatably connected to the rear end of the seat 1 via the third rotating shaft c, two armrests 3 are provided and are respectively located on both sides of the backrest frame 2, the armrest 3 is rotatably connected to the backrest frame 2 via the fourth rotating shaft d, and the second bending portion 52 is rotatably connected to the armrest 3 via the fifth rotating shaft e, thereby realizing the linkage between the armrest 3, the backrest frame 2, the seat 1, the first chair leg 4 and the second chair leg 5, and the first bending portion 42 and the second bending portion 52 are arranged between the seat 1 and the armrest 3.

[0045] like Figure 3 and Figure 4 As shown, the first rotating axis a, the third rotating axis c, the fourth rotating axis d, and the fifth rotating axis e form a quadrilateral movement. During the folding process, whether lifting up the armrest 3 or the seat 1, or flipping down the backrest frame 2, the entire nursing chair can be linked and folded. In particular, the armrest 3 can be folded synchronously with the seat 1, eliminating the trouble of deliberately flipping the folded armrest 3 after folding the back frame 2 and the seat 1. The folding action is convenient and quick, and the overall fit is high after folding, thereby reducing the space occupied by the nursing chair when not in use and improving the user experience.

[0046] The linkage member 8 is rotatably connected to the seat 1 through the sixth rotating shaft f, and is rotatably connected to the second support portion 51 through the seventh rotating shaft g. The linkage member 8 may be a rod-shaped structure or a plate-shaped structure. When the nursing chair is in the open state, the height of the horizontal plane where the sixth rotating shaft f is located is higher than the height of the horizontal plane where the seventh rotating shaft g is located, and the sixth rotating shaft f is located between the first chair leg 4 and the second chair leg 5. In addition, when the nursing chair is in the folded state, the plane formed by the first rotating shaft a and the fifth rotating shaft e is parallel to the extension direction of the first support portion 41.

[0047] Through the position coordination between each rotating shaft and the pushing action of the linkage part 8, the angle changes of the seat 1 and the armrest 3 are basically close when folded, and the fit between the seat 1, the armrest 3 and the back frame 2 is higher, and the center of gravity of the nursing chair is balanced, which not only further reduces the size of the nursing chair in the folded state, but also improves the stability, so that the folded nursing chair is not easy to tip over when standing even if a little external force is applied, which is safer.

[0048] like Figure 2 As shown, the second support portion 51 is provided with an extension member 511, which is specifically a cylindrical structure. The linkage member 8 is rotatably connected to the extension member 511 through the seventh rotating shaft g. The extension member 511 is used to support or clamp the seat 1, and in this embodiment, it is specifically supported. When the nursing chair is in the open state, the lower surface of the seat 1 contacts the upper surface of the extension member 511, so that the extension member 511 plays a role in supporting the seat 1, thereby improving the stability of the user when sitting on the seat 1. In addition, the extension member 511 is coaxially rotatably arranged with the linkage member 8, so that the nursing chair can switch between the open state and the folded state more smoothly.

[0049] like Figure 1 As shown, the second bending portion 52 is fixedly connected to a supporting member 7, and the extension direction of the supporting member 7 is opposite to that of the second bending portion 52. In other embodiments, the supporting member 7 is used to support the armrest 3, and the upper surface of the supporting member 7 is in contact with the lower surface of the armrest 3 to limit the downward tilt of the armrest 3 to improve the stability of the armrest 3.

[0050] The arrangement of the supporting member 7 can also increase the weight of the nursing chair on the side away from the backrest frame 2 when the nursing chair is in the folded state, thereby further balancing the center of gravity of the nursing chair and improving the stability when the nursing chair is folded and standing.

[0051] like Figure 1 and Figure 6 As shown, in the present embodiment, the supporting member 7 is used to clamp the armrest 3. In addition to the upper surface of the supporting member 7 being in contact with the lower surface of the armrest 3, the armrest 3 is also fixedly connected with a positioning block 31. The supporting member 7 is provided with a positioning groove 71. The positioning block 31 is clamped to the supporting member 7 through the positioning groove 71, so that the armrest 3 cannot be easily rotated. The user needs to apply force to release the clamping connection between the positioning block 31 and the positioning groove 71 before the nursing chair can be folded, thereby further improving the stability of the armrest 3.

[0052] like Figure 6 and Figure 7 As shown, further, the positioning block 31 is provided with a card interface 311, and the supporting member 7 is provided with a card block 72 in the positioning groove 71, and the card block 72 and the positioning block 31 are both provided with inclined surfaces 32 that interfere with each other, and the card block 72 is fixedly connected with a connecting block 73, and the connecting block 73 is slidably connected to the supporting member 7, and the connecting block 73 is fixedly connected with a pressing cover 74, and an elastic member 75 is provided in the pressing cover 74, and the elastic member 75 is specifically a spring. The elastic force of the elastic member 75 makes the pressing cover 74 tend to leave the supporting member 7, thereby driving the connecting block 73 and the card block 72 to slide.

[0053] When the positioning block 31 is engaged with the positioning groove 71, the engaging block 72 is forced to slide with the cooperation of the inclined surface 32, making room for the positioning block 31 to completely enter the positioning groove 71, until the card interface 311 is aligned with the engaging block 72, and the elastic force of the elastic member 75 causes the engaging block 72 to slide in the opposite direction and engage with the card interface 311, further limiting the movement of the positioning block 31 and improving the stability of the armrest 3. Before the nursing chair needs to be folded, the pressing cover 74 is pressed first to drive the connecting block 73 and the engaging block 72 to slide, and the engaging block 72 is separated from the card interface 311, releasing the restriction on the positioning block 31, so that the armrest 3 can be flipped over and the nursing chair can be folded quickly.

[0054] The implementation principle of a foldable nursing chair in the embodiment of the present application is: After releasing the fixation of the armrest 3 and the supporting member 7, lift up the armrest 3, lift up the seat 1 or flip down the backrest frame 2 to realize the linked folding of the entire nursing chair, and the first leg 4 and the second leg 5 are flipped towards each other at the same angle and stroke, so that the nursing chair can stand after being folded.

[0055] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A foldable nursing chair, characterized in that: Includes a chair seat (1), and: A first chair leg (4) rotatably connected to the chair seat (1) via a first rotating shaft (a); A second chair leg (5) is rotatably connected to the first chair leg (4) via a second rotating shaft (b), wherein the distance between the second rotating shaft (b) and the lowest point of the first chair leg (4) is equal to the distance between the second rotating shaft (b) and the lowest point of the second chair leg (5); A backrest frame (2) rotatably connected to the seat (1) via a third rotating shaft (c); The armrest (3) is rotatably connected to the backrest frame (2) via a fourth rotating shaft (d); the second chair leg (5) is rotatably connected to the armrest (3) via a fifth rotating shaft (e); The linkage member (8) is rotationally connected to the chair seat (1) via a sixth rotating shaft (f) and is rotationally connected to the second chair leg (5) via a seventh rotating shaft (g).

2. A foldable nursing chair according to claim 1, characterized in that: The second chair leg (5) is fixedly connected to a supporting member (7), and the supporting member (7) is used to support or clamp the armrest (3).

3. A foldable nursing chair according to claim 2, characterized in that: The armrest (3) is fixedly connected with a positioning block (31), the supporting member (7) is provided with a positioning groove (71), and the positioning block (31) is clamped to the supporting member (7) through the positioning groove (71).

4. A foldable nursing chair according to claim 3, characterized in that: The positioning block (31) is provided with a card interface (311); the supporting member (7) is provided with a card block (72) in the positioning groove (71); the card block (72) is card-engaged with the card interface (311); the card block (72) and the positioning block (31) are both provided with inclined surfaces (32) that abut against each other; the card block (72) is fixedly connected with a connecting block (73); the connecting block (73) is slidably connected to the supporting member (7); and the supporting member (7) is provided with an elastic member (75) for driving the connecting block (73) to slide.

5. The foldable nursing chair according to claim 2, characterized in that: The first chair leg (4) comprises a first supporting portion (41) and a first bending portion (42), the first bending portion (42) is bent and fixedly connected to the first supporting portion (41), the first supporting portion (41) is rotatably connected to the chair seat (1) via a first rotating shaft (a), the second chair leg (5) comprises a second supporting portion (51) and a second bending portion (52), the second bending portion (52) is bent and fixedly connected to the second supporting portion (51), the second supporting portion (51) is rotatably connected to the linkage member (8) via a seventh rotating shaft (g), the second bending portion (52) is rotatably connected to the first bending portion (42) via a second rotating shaft (b), the second bending portion (52) is rotatably connected to the armrest (3) via a fifth rotating shaft (e), and the supporting member (7) is arranged on the second bending portion (52).

6. The foldable nursing chair according to claim 1, characterized in that: When the nursing chair is in an open state, the height of the sixth rotating shaft (f) is higher than the height of the seventh rotating shaft (g), and the sixth rotating shaft (f) is located between the first chair leg (4) and the second chair leg (5).

7. The foldable nursing chair according to claim 5, characterized in that: When the nursing chair is in a folded state, a plane formed by the first rotating shaft (a) and the fifth rotating shaft (e) is parallel to an extension direction of the first supporting portion (41).

8. The foldable nursing chair according to claim 1, characterized in that: The second chair leg (5) is provided with an extension piece (511), the linkage piece (8) is rotationally connected to the extension piece (511) via a seventh rotating shaft (g), and the extension piece (511) is used to support or clamp the chair seat (1).

9. The foldable nursing chair according to claim 5, characterized in that: An adjusting cylinder (6) is sleeved on the outer sides of the first supporting portion (41) and the second supporting portion (51); the adjusting cylinder (6) is slidably connected to the first supporting portion (41) or the second supporting portion (51); a fixing component is provided between the adjusting cylinder (6) and the first supporting portion (41) or the second supporting portion (51); the fixing component is used to fix the relative position between the adjusting cylinder (6) and the first supporting portion (41) or the second supporting portion (51).

10. The foldable nursing chair according to claim 1, characterized in that: The chair seat (1) is provided with a seat plate (11), and the seat plate (11) is provided with a groove (12).

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