A care chair

Abstract

The utility model discloses a chair for nursing belongs to nursing equipment technical field, and the chair for nursing includes chair body, switching subassembly and pitch adjusting assembly, and the chair body includes base, connecting seat, back frame, foot stool and two side frames, and the front end of foot stool is rotatably connected with connecting seat, and the rear end of back frame is rotatably connected with connecting seat, and two side frames are arranged on the left side and the right side of connecting seat respectively, and the front end of side frame is rotatably connected with foot stool, and the rear end is rotatably connected with back frame, and the lower end of connecting seat is rotatably connected with base, and switching subassembly is configured to drive chair body to switch between sitting posture mode and lying posture mode, and lying posture mode is that two side frames, back frame, connecting seat and foot stool enclose to form lying plane, and sitting posture mode is that two side frames, back frame, connecting seat and foot stool enclose to form sitting space, and pitch adjusting assembly is configured to be used for adjusting or fixedly connecting seat's front and rear pitch angle relative to base, and it is favorable to improve the flexibility of user posture adjustment.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a nursing chair. Background Technology

[0002] The care of patients, disabled individuals, and semi-disabled individuals is of paramount importance in the nursing profession and has received widespread attention from all sectors of society. Currently, nursing procedures for patients, disabled individuals, and semi-disabled individuals generally involve switching between sitting and lying positions.

[0003] While some nursing chairs can help users switch between sitting and lying positions, these chairs generally have a limited range of adjustment options, making it difficult to adjust the user's posture according to nursing or medical needs. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a nursing chair that improves the flexibility of user posture adjustment to meet various nursing or medical needs.

[0005] The nursing chair of this utility model embodiment includes: a chair body, including a base, a connecting seat, a back frame, a foot frame, and two side frames. The front end of the foot frame is rotatably connected to the connecting seat, and the rear end of the back frame is rotatably connected to the connecting seat. The two side frames are respectively located on the left and right sides of the connecting seat. The front end of the side frame is rotatably connected to the foot frame, and the rear end is rotatably connected to the back frame. The lower end of the connecting seat is rotatably connected to the base. A switching component, one end of which is connected to the connecting seat and the other end of which is connected to the foot frame or the back frame, is configured to drive the chair body to switch between a sitting mode and a reclining mode. In the reclining mode, the two side frames, the back frame, the connecting seat, and the foot frame together form a reclining backrest. In the sitting mode, the two side frames, the back frame, the connecting seat, and the foot frame together form a recessed sitting space. A tilt adjustment component, connected to the connecting seat and the base, is configured to adjust or fix the front and rear tilt angle of the connecting seat relative to the base.

[0006] The nursing chair according to the present utility model embodiment has at least the following beneficial effects: the leg frame and back frame are rotatably connected to the front and rear ends of the connecting seat, respectively; two side frames are respectively located on the left and right sides of the connecting seat, and the front end of the side frame is rotatably connected to the leg frame and the rear end is rotatably connected to the back frame. The side frames can protect the user, thereby preventing the user from falling off the chair body. One end of the switching component is connected to the connecting seat and the other end is connected to the leg frame or back frame, thereby driving the chair body to switch between a sitting mode and a reclining mode. In the sitting mode, the user can sit upright in the sitting space, while in the reclining mode, the user can lie back on the reclining surface. When the user sits or lies on the chair body... The switching component allows users to quickly switch between sitting and lying positions to meet various nursing and medical needs. The nursing chair also includes a tilt adjustment component. The backrest, footrest, and siderest are all connected to the connecting seat, and the lower end of the connecting seat is rotatably connected to the base. The tilt adjustment component is connected to the connecting seat and the base and is configured to adjust or fix the tilt angle of the connecting seat relative to the base. In other words, the nursing chair has a tilt adjustment function, which can more flexibly adjust the height position of the user's head and feet to meet various nursing or medical needs. For example, the user can be further adjusted from a lying position to a head-down, feet-up position.

[0007] According to some embodiments of the present invention, the pitch adjustment assembly includes a first linear driver, a swing block, and a rotating component. The swing block is rotatably connected to the base and has a strip hole. One end of the first linear driver is rotatably connected to the base, and the other end is rotatably connected to the swing block. The rotating component is fixedly connected to the connecting seat and at least partially passes through the strip hole.

[0008] According to some embodiments of the present invention, the switching component includes a second linear driver, one end of which is rotatably connected to the connecting seat and the other end of which is rotatably connected to the stand.

[0009] According to some embodiments of the present invention, the left and right sides of the back frame are respectively connected to the rotating shafts, which are rotatably connected to the rear end of the side frame. In the reclining mode, the rotating shafts can abut against the connecting seat to support the reclining surface. And / or, the lower end of the back frame is rotatably connected to a seat plate, which abuts against the connecting seat.

[0010] According to some embodiments of the present invention, the nursing chair further includes a rotation adjustment component, the leg frame includes an upper frame and a lower frame, the upper frame is rotatably connected to the front end of the connecting seat, the upper end of the lower frame is rotatably connected to the lower end of the upper frame, the lower end of the lower frame is connected to a pedal, and the rotation adjustment component is connected to the upper frame and the lower frame to adjust or fix the rotation angle of the lower frame and the upper frame.

[0011] According to some embodiments of the present invention, the rotation adjustment assembly includes a ratchet rack and a pawl, one of which is connected to the lower frame and the other is connected to the upper frame. The ratchet rack has a plurality of teeth arranged in a row, and the plurality of teeth can engage with the pawl.

[0012] According to some embodiments of this utility model, the pedal is rotatably connected to the lower frame.

[0013] According to some embodiments of the present invention, the nursing chair also includes a fixing member, the footboard includes a first plate and a second plate, the first plate is connected to an extension tube, the lower frame is provided with a perforation, the extension tube passes through the perforation and can extend and retract relative to the perforation, the second plate is rotatably connected to the first plate, and the fixing member is connected to the extension tube and the lower frame to fix the extension length of the extension tube relative to the perforation.

[0014] According to some embodiments of this utility model, the nursing chair also includes a handle, two connecting lines and two elastic elements, two extension tubes, two through holes in the lower frame, two extension tubes correspondingly passing through the two through holes, two elastic elements connected to two fixing elements respectively, and the elastic elements connected to the fixing elements and the lower frame to drive the fixing elements closer to the extension tubes, the handle being rotatably connected to the lower frame, one end of each of the two connecting lines being connected to the two fixing elements respectively, and the other end of each of the two connecting lines being connected to the two opposite ends of the handle respectively.

[0015] According to some embodiments of the present invention, a handrail is connected to the side frame, and the handrail is movably connected to the side frame in the vertical direction; According to some embodiments of the present invention, the headrest can move along the back frame toward or away from the connecting seat.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a structural schematic diagram of a nursing chair in a sitting posture mode according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a nursing chair according to an embodiment of the present invention, viewed from another perspective in a sitting posture mode. Figure 3 This is a schematic diagram of the structure of a nursing chair in a seated posture, viewed from the reclining side, according to an embodiment of the present invention. Figure 4 for Figure 3 A magnified view of part A of the nursing chair shown; Figure 5This is a schematic diagram of the structure of a nursing chair in a reclining position according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of a nursing chair in a reclining position, representing an embodiment of the present invention.

[0018] Icon labels: 100. Backrest; 110. Swivel shaft; 120. Seat board; 130. Headrest; 131. Main body; 132. Hinged section; 140. Sleeve; 150. Sleeve sleeve; 160. Control mechanism; 200. Connecting seat; 210. Abutment section; 300. Base; 310. Casters; 400. Tripod; 410. Upper frame; 420. Lower frame; 430. Footboard; 431. First plate; 432. Second plate; 433. Extension tube; 500, side frame; 600. Switch components; 700. Pitch adjustment assembly; 710. First linear actuator; 720. Swing block; 721. Strip hole; 730. Rotating component; 800. Rotary adjustment assembly; 810. Ratchet; 820. Pawl; 900. Handrail. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 6 As shown, a nursing chair according to an embodiment of the present invention includes a chair body, a switching component 600, and a tilt adjustment component 700.

[0024] Reference Figure 1 , Figure 2 and Figure 5 As shown, the chair body includes a base 300, a connecting seat 200, a back frame 100, a leg frame 400, and two side frames 500. The leg frame 400 is rotatably connected to the front end of the connecting seat 200, and the back frame 100 is rotatably connected to the rear end of the connecting seat 200. The leg frame 400 is used to support the legs of the human body, and the back frame 100 is used to support the back of the human body. The two side frames 500 are respectively located on the left and right sides of the connecting seat 200, and the front end of the side frame 500 is connected to the leg frame 400, while the rear end of the side frame 500 is connected to the back frame 100.

[0025] Reference Figure 1 , Figure 2 and Figure 5 As shown, the connection point between the tripod 400 and the side frame 500 is located on the side of the connection point between the tripod 400 and the connecting seat 200 closer to the back frame 100, and the connection point between the back frame 100 and the side frame 500 is located on the side of the connection point between the back frame 100 and the connecting seat 200 away from the tripod 400, so as to ensure that the tripod 400, the side frame 500 and the back frame 100 can rotate relative to the connecting seat 200.

[0026] Reference Figure 1 , Figure 2 and Figure 5 As shown, one end of the switching component 600 is connected to the connecting seat 200, and the other end is connected to the leg 400. The switching component 600 can drive the leg 400 to rotate relative to the connecting seat 200. In conjunction with the connection between the side frame 500 and the leg 400 and the back frame 100, the side frame 500 and the back frame 100 are driven to move synchronously, thereby realizing the switching of the posture of the chair body.

[0027] Reference Figure 1 , Figure 2 and Figure 5As shown, specifically, the switching component 600 is configured to drive the chair body to switch between a sitting mode and a reclining mode. In the sitting mode, the two side frames 500, the back frame 100, the connecting seat 200, and the foot frame 400 together form a recessed sitting space, in which the user can sit. In the reclining mode, the two side frames 500, the back frame 100, the connecting seat 200, and the foot frame 400 together form a reclining surface, in which the user can lie back.

[0028] Reference Figure 1 , Figure 2 and Figure 5 As shown, when a user is sitting or lying on the chair, the switching component 600 can quickly switch between sitting and lying positions by switching between sitting and lying modes to meet various nursing and medical needs.

[0029] Reference Figure 1 , Figure 2 and Figure 5 As shown, the lower end of the connecting seat 200 is rotatably connected to the base 300. The tilt adjustment assembly 700 is connected to both the connecting seat 200 and the base 300 and is configured to adjust or fix the forward and backward tilt angle of the connecting seat 200 relative to the base 300. In other words, this nursing chair is equipped with a forward and backward tilt adjustment function, allowing for more flexible adjustment of the user's head and foot height to meet various nursing or medical needs. For example, it can further adjust the user from a lying position to a head-down, feet-up position, i.e., the Trendlenbergh position.

[0030] The lower end of the base 300 is connected to multiple rollers 310. The rollers 310 are connected to the ground, which makes it easy for the operator to move the nursing chair and makes the movement of the nursing chair more flexible and convenient.

[0031] It should be understood that in some other embodiments, one end of the switching component 600 is connected to the connecting seat 200, and the other end is connected to the back frame 100. The switching component 600 can drive the back frame 100 to rotate relative to the connecting seat 200, and in conjunction with the connection between the side frame 500 and the foot frame 400 and the back frame 100, drive the side frame 500 and the foot frame 400 to move synchronously, thereby realizing the switching of the posture of the chair body.

[0032] Reference Figure 2 , Figure 3 and Figure 4As shown, it can be understood that in this embodiment, the pitch adjustment assembly 700 includes a first linear actuator 710, a swing block 720, and a rotating member 730. The swing block 720 is rotatably connected to the base 300 and has a strip hole 721. One end of the first linear actuator 710 is rotatably connected to the base 300, and the other end is rotatably connected to the swing block 720. The rotating member 730 is fixedly connected to the connecting seat 200 and at least partially passes through the strip hole 721.

[0033] Reference Figure 2 , Figure 3 and Figure 4 As shown, specifically, the connection point between the first linear actuator 710 and the base 300 and the swing block 720 are located behind and in front of the connection point between the connecting seat 200 and the base 300, respectively. When the first linear actuator 710 extends, it can drive the swing block 720 to rotate clockwise. Through the mutual abutment between the rotating member 730 and the strip hole 721, the connecting seat 200 is driven to tilt forward relative to the base 300.

[0034] Reference Figure 2 , Figure 3 and Figure 4 As shown, when the first linear actuator 710 shortens, it can drive the oscillating block 720 to rotate counterclockwise. Through the mutual abutment of the rotating member 730 and the strip hole 721, the connecting seat 200 is driven to tilt backward relative to the base 300. Specifically, the rotating member 730 is a cylinder.

[0035] Reference Figure 2 , Figure 3 and Figure 4 As shown, the nursing chair can be adjusted by driving the connecting seat 200 to rotate relative to the base 300 in the forward or reverse direction around the left-right extending axis via the tilt adjustment component 700.

[0036] Reference Figure 1 , Figure 2 and Figure 6 As shown, it can be understood that the switching assembly 600 includes a second linear driver, one end of which is rotatably connected to the connector 200 and the other end of which is rotatably connected to the stand 400.

[0037] Reference Figure 1 , Figure 2 and Figure 6As shown, the switching component 600 can drive the foot and connecting seat 200 to rotate relative to each other through the extension and retraction of the second linear drive. The switching component 600 can drive the leg 400 to rotate relative to the connecting seat 200. In conjunction with the connection between the side frame 500 and the leg 400 and the back frame 100, the side frame 500 and the back frame 100 can move synchronously, thereby realizing the switching of the posture of the chair body.

[0038] Reference Figure 1 , Figure 2 and Figure 6 As shown, specifically, the first linear actuator 710 and the second linear actuator can be cylinders, thereby achieving stepless adjustment, making the adjustment of the chair body's posture and tilt angle more flexible, and enabling suspension in any state. The nursing chair also has a control component 160 at the back frame 100, which includes multiple handles. The operator can control the opening and closing of valves by rotating the handles, thereby controlling the first linear actuator 710 and the second linear actuator.

[0039] It should be understood that, in some other embodiments, the first linear actuator 710 and the second linear actuator may be linear drive mechanisms such as hydraulic push rods, electric push rods, lead screw and slider mechanisms, and crank-connecting rod mechanisms.

[0040] Reference Figure 1 , Figure 2 and Figure 5 As shown, it can be understood that in this embodiment, the left and right sides of the back frame 100 are respectively connected to the pivot 110, and the pivot 110 is rotatably connected to the rear end of the side frame 500. In the reclining mode, the pivot 110 can abut against the connecting seat 200 to support the reclining surface.

[0041] Reference Figure 1 , Figure 2 and Figure 5 As shown, the left and right sides of the back frame 100 can be connected to the rotating shaft 110 respectively, and the rear end of the side frame 500 can be sleeved on the outer periphery of the rotating shaft 110 and rotatably connected to the rotating shaft 110, thereby realizing the rotatable connection between the side frame 500 and the back frame 100.

[0042] Reference Figure 1 , Figure 2 and Figure 5As shown, under the action of the switching component 600, when the chair body switches from a sitting mode to a reclining mode, the backrest 100 swings backward around its left-right extending axis, while the legrest 400 swings forward around its left-right extending axis. When the backrest 100 swings backward to the preset position, the pivots 110 on both sides of the backrest 100 can abut against the rearward extending abutment section 210 of the connecting seat 200, thereby achieving a smooth reclining of the backrest 100. This allows the backrest 100 to effectively support the user's weight and effectively prevents the backrest 100 from failing to maintain the reclining mode due to the failure of the switching component 600.

[0043] Reference Figure 1 , Figure 2 and Figure 5 As shown, it can be understood that the lower end of the back frame 100 is rotatably connected to the seat 120, which abuts against the connecting seat 200. The seat 120 is used to abut against the buttocks of the human body, that is, to support the weight of the buttocks. The seat 120 can adaptively adjust its tilt angle with the connecting seat 200 as the back frame 100 rotates, so as to adapt to various posture changes of the chair body.

[0044] Reference Figure 1 , Figure 2 and Figure 5 As shown, one end of the seat 120 is rotatably connected to the backrest 100, while the other end remains in contact with the connecting seat 200 to ensure a stable connection between the seat 120 and the connecting seat 200, so that the backrest 100 can effectively support the user's weight.

[0045] Reference Figure 1 , Figure 2 and Figure 5 As shown, it is understood that the nursing chair also includes a rotation adjustment assembly 800. The leg frame 400 includes an upper frame 410 and a lower frame 420. The upper frame 410 is rotatably connected to the front end of the connecting seat 200. The upper end of the lower frame 420 is rotatably connected to the lower end of the upper frame 410. A pedal 430 is connected to the lower end of the lower frame 420. The rotation adjustment assembly 800 is connected to the upper frame 410 and the lower frame 420 to adjust or fix the rotation angle between the lower frame 420 and the upper frame 410.

[0046] Reference Figure 1 , Figure 2 and Figure 3As shown, specifically, the nursing chair also includes an adjustable footrest 400. Specifically, the upper frame 410 is rotatably connected to the front end of the connecting seat 200, while the upper end of the lower frame 420 is rotatably connected to the lower end of the upper frame 410. The lower end of the lower frame 420 is connected to a foot pedal 430, which can be stepped on by the user to effectively support the weight of the user's feet. The lower frame 420 can be used to abut against the lower leg of the user. In conjunction with the rotating adjustment component 800, it can assist in adjusting the swing angle of the user's legs and torso. That is, the nursing chair can meet various nursing and user transfer needs through the rotating adjustment component 800.

[0047] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the rotation adjustment assembly 800 includes a ratchet rack 810 and a pawl 820, one of which is connected to the lower frame 420 and the other is connected to the upper frame 410. The ratchet rack 810 has a plurality of teeth arranged in a row, which can engage with the pawl 820.

[0048] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the ratchet rack 810 is rotatably connected to the lower frame 420, while the pawl 820 is connected to the upper frame 410. The user can engage the pawl 820 with the ratchet teeth on the ratchet rack 810 to fix the relative rotation angle between the upper frame 410 and the lower frame 420. When the user rotates the ratchet rack 810, the pawl 820 is disengaged from the ratchet teeth, thereby releasing the rotational fixation between the upper frame 410 and the lower frame 420, so that the upper frame 410 and the lower frame 420 can be adjusted to a suitable rotation angle.

[0049] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the pedal 430 is rotatably connected to the lower frame 420. When the pedal 430 is in use, the operator can rotate the pedal 430 relative to the lower frame 420 to open it, so that the pedal 430 is rotated to a right angle relative to the lower frame 420 for the user to step on.

[0050] Reference Figure 1 , Figure 2 and Figure 3 As shown, when the pedal 430 is not in use, such as in the reclining mode, the operator can rotate and fold the pedal 430 relative to the lower frame 420 so that the pedal 430 is rotated to a folded arrangement relative to the lower frame 420, thereby reducing or eliminating the obstruction caused by the pedal 430 to the human body when reclining.

[0051] Reference Figure 1 , Figure 2 and Figure 3 As shown, it is understandable that, taking into account the different leg lengths of different users, the nursing chair also includes a telescopic adjustment for the footrest 430.

[0052] Reference Figure 1 , Figure 2 and Figure 6 As shown, specifically, the nursing chair also includes a fixing member. The footboard 430 includes a first plate 431 and a second plate 432. The first plate 431 is connected to an extension tube 433. The lower frame 420 is provided with a perforation. The extension tube 433 passes through the perforation and can extend and retract relative to the perforation. The fixing member is connected to the extension tube 433 and the lower frame 420 to fix the extension length of the extension tube 433 relative to the perforation.

[0053] Reference Figure 1 , Figure 2 and Figure 6 As shown, specifically, the operator can operate the fixing device to release the extension tube 433 from the lower frame 420, and then extend the extension tube 433 outward relative to the through hole, thereby making the applicable length of the tripod 400 longer. Then, the fixing device can be used to lock the extension tube 433 and the lower frame 420, thereby achieving relative fixation between the extension tube 433 and the lower frame 420.

[0054] Reference Figure 1 , Figure 2 and Figure 6 As shown, conversely, the operator can operate the fixing device to release the extension tube 433 from the lower frame 420, and then cause the extension tube 433 to retract inward relative to the perforation, thereby making the applicable length of the tripod 400 shorter. Then, the fixing device can be used to lock the extension tube 433 and the lower frame 420, thereby achieving relative fixation between the extension tube 433 and the lower frame 420.

[0055] Reference Figure 1 , Figure 2 and Figure 6 As shown, the pedal 430 includes a first plate 431 and a second plate 432. The first plate 431 is used to connect the extension tube 433, while the second plate 432 is connected to the first plate 431. The second plate 432 can be rotated and folded relative to the first plate 431, thereby realizing the folding of the pedal 430. Alternatively, the pedal 430 can be unfolded by rotating the second plate 432 relative to the first plate 431.

[0056] Reference Figure 1 , Figure 2 and Figure 6As shown, it can be understood that in order to improve the connection stability of the pedal 430, two extension tubes 433 are provided, and the lower frame 420 is provided with two through holes. The two extension tubes 433 are inserted into the two through holes one to one, which can maintain the load-bearing performance and load-bearing stability of the pedal 430.

[0057] Reference Figure 1 , Figure 2 and Figure 6 As shown, in order to make the operation of the two fixing parts simpler and more convenient, the nursing chair also includes a handle, two connecting lines and two elastic members. The two elastic members are respectively connected to the two fixing parts. The elastic members are connected to the fixing parts and the lower frame 420 to drive the fixing parts closer to the extension tube 433. The handle is rotatably connected to the lower frame 420. One end of each of the two connecting lines is connected to the two fixing parts, and the other end of each connecting line is connected to the two opposite ends of the handle.

[0058] Reference Figure 1 , Figure 2 and Figure 6 As shown, the operator can rotate the handle to tighten the connecting cable, thereby causing the fixing member to squeeze the elastic member and move away from the extension tube 433, thus eliminating the locking effect of the fixing member on the extension tube 433. When the user releases the handle, the elastic member allows the fixing member to move closer to the extension tube 433 under its elastic force. Through the contact between the fixing member and the extension tube 433, the extension length of the extension tube 433 is fixed.

[0059] Reference Figure 1 , Figure 2 and Figure 6 As shown, specifically, the extension tube 433 is connected to a plurality of first insertion holes along its length direction. The fixing member can be a first pin, and the elastic member can be a spring. The spring can drive the first pin to be inserted into the first insertion hole. Through the mutual abutment between the first pin and the second insertion hole, the extension length of the extension tube 433 and the lower frame 420 can be fixed.

[0060] Reference Figure 1 , Figure 2 and Figure 5 As shown, it can be understood that a handrail 900 is connected to the side frame 500, and the handrail 900 is movably connected to the side frame 500 in the vertical direction; specifically, the side frame 500 is provided with a vertically penetrating mounting hole, and the handrail 900 is connected with a vertically extending mounting rod. The mounting rod can be inserted into the mounting hole and slide up and down along the mounting hole, thereby changing the installation height of the handrail 900 relative to the side frame 500. The handrail 900 can be used by the user to hold or support the user's hand weight.

[0061] Reference Figure 1 , Figure 2 and Figure 5As shown, specifically, the nursing chair also includes a second pin, and multiple second holes are connected along the length of the mounting rod. The second pin passes through the side frame 500 and is inserted into the first hole. The mutual abutment between the first pin and the second hole can fix the installation height of the armrest 900 relative to the side frame 500.

[0062] Reference Figure 1 , Figure 2 and Figure 5 As shown, it is understood that the nursing chair also includes a headrest 130, which is movably connected to the backrest 100 and can move along the backrest 100 toward or away from the connecting seat 200.

[0063] Reference Figure 1 , Figure 2 and Figure 5 As shown, specifically, the backrest 100 is connected to a sleeve 150 on the back, and the headrest 130 is connected to a sleeve 140. The sleeve 140 passes through the sleeve 150 and can extend and retract along the sleeve 150, thereby changing the position of the headrest 130 relative to the seat 120 to suit the usage needs of different people.

[0064] Reference Figure 1 , Figure 2 and Figure 5 As shown, the nursing chair also includes a threaded component, which can be threaded through and connected to the sleeve 150. By screwing the threaded component into or out of the sleeve 150, the threaded component can be pressed or separated from the sleeve 140. When the threaded component presses the sleeve 140, the telescopic position of the sleeve 140 and the sleeve 150 can be fixed, that is, the position of the headrest 130 relative to the seat 120 can be fixed. When the threaded component is separated from the sleeve 140, the relative fixation of the sleeve 140 and the sleeve 150 can be released, so that the operator can adjust the height of the headrest 130.

[0065] Reference Figure 1 , Figure 2 and Figure 5 As shown, specifically, the headrest 130 has a main body 131 and a hinged part 132. The hinged part 132 is connected to the left and right sides of the main body 131, respectively. The hinged part 132 can rotate relative to the main body 131, thereby changing the coverage effect of the headrest 130 on the human head. When the rotation angle between the main body 131 and the hinged part 132 is zero, the back of the hinged part 132 abuts against the back frame 100, and the human head has a large space for movement and swing when resting on the headrest 130. When the hinged part 132 rotates relative to the main body 131, so that the back of the hinged part 132 separates from the back frame 100, the coverage effect of the headrest 130 on the human head can be improved, thereby restricting the space for movement and swing of the human head, so as to improve the fixation effect on the human head.

[0066] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A chair for nursing, characterized by, include: The chair body includes a base (300), a connecting seat (200), a back frame (100), a leg frame (400), and two side frames (500). The leg frame (400) is rotatably connected to the front end of the connecting seat (200), and the back frame (100) is rotatably connected to the rear end of the connecting seat (200). The two side frames (500) are respectively located on the left and right sides of the connecting seat (200). The front end of the side frame (500) is rotatably connected to the leg frame (400), and the rear end is rotatably connected to the back frame (100). The lower end of the connecting seat (200) is rotatably connected to the base (300). The switching component (600), with one end connected to the connecting seat (200) and the other end connected to the leg frame (400) or the back frame (100), is configured to drive the chair body to switch between a sitting mode and a reclining mode. In the reclining mode, the two side frames (500), the back frame (100), the connecting seat (200), and the leg frame (400) together form a reclining backrest. In the sitting mode, the two side frames (500), the back frame (100), the connecting seat (200), and the leg frame (400) together form a recessed sitting space. A pitch adjustment assembly (700), connected to the connecting seat (200) and the base (300), is configured to adjust or fix the pitch angle of the connecting seat (200) relative to the base (300).

2. The care chair according to claim 1, characterized in that The pitch adjustment assembly (700) includes a first linear actuator (710), a swing block (720), and a rotating component (730). The swing block (720) is rotatably connected to the base (300) and has a strip hole (721). One end of the first linear actuator (710) is rotatably connected to the base (300), and the other end is rotatably connected to the swing block (720). The rotating component (730) is fixedly connected to the connecting seat (200) and at least partially passes through the strip hole (721).

3. The care chair according to claim 1, characterized in that The switching assembly (600) includes a second linear driver, one end of which is rotatably connected to the connecting seat (200) and the other end of which is rotatably connected to the stand (400).

4. The care chair of claim 1, wherein The back frame (100) is connected to a pivot (110) on the left and right sides respectively. The pivot (110) is rotatably connected to the rear end of the side frame (500). In the lying position mode, the pivot (110) can abut against the connecting seat (200) to support the lying back surface. And / or, the lower end of the back frame (100) is rotatably connected to a seat plate (120), the seat plate (120) abutting against the connecting seat (200).

5. The care chair of claim 1, wherein, It also includes a rotation adjustment assembly (800). The stand (400) includes an upper frame (410) and a lower frame (420). The upper frame (410) is rotatably connected to the front end of the connecting seat (200). The upper end of the lower frame (420) is rotatably connected to the lower end of the upper frame (410). A pedal (430) is connected to the lower end of the lower frame (420). The rotation adjustment assembly (800) is connected to the upper frame (410) and the lower frame (420) to adjust or fix the rotation angle between the lower frame (420) and the upper frame (410).

6. The care chair according to claim 5, characterized in that The rotation adjustment assembly (800) includes a ratchet rack (810) and a pawl (820), one of which is connected to the lower frame (420) and the other is connected to the upper frame (410). The ratchet rack (810) has a plurality of teeth arranged in a row, and the plurality of teeth can engage with the pawl (820).

7. The care chair according to claim 6, characterized in that The pedal (430) is rotatably connected to the lower frame (420).

8. The chair according to claim 7, characterized in that It also includes a fixing component. The pedal (430) includes a first plate (431) and a second plate (432). The first plate (431) is connected to an extension tube (433). The lower frame (420) is provided with a through hole. The extension tube (433) passes through the through hole and can extend and retract relative to the through hole. The second plate (432) is rotatably connected to the first plate (431). The fixing component is connected to the extension tube (433) and the lower frame (420) to fix the extension length of the extension tube (433) relative to the through hole.

9. The care chair of claim 8, wherein, It also includes a handle, two connecting lines and two elastic elements. Two extension tubes (433) are provided, and two holes are provided on the lower frame (420). The two extension tubes (433) are inserted into the two holes in a one-to-one correspondence. The two elastic elements are respectively connected to the two fixing elements. The elastic elements are connected to the fixing elements and the lower frame (420) to drive the fixing elements to move closer to the extension tubes (433). The handle is rotatably connected to the lower frame (420). One end of each of the two connecting lines is connected to the two fixing elements respectively, and the other end of each of the two connecting lines is connected to the two opposite ends of the handle respectively.

10. The chair of claim 1, wherein, A handrail (900) is connected to the side frame (500), and the handrail (900) is movably connected to the side frame (500) in the vertical direction; And / or, it also includes a headrest (130) movably connected to the back frame (100), the headrest (130) being movable along the back frame (100) toward or away from the connecting seat (200).

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