CN210728050U - Safety seat convenient to open and close - Google Patents

Abstract

The utility model discloses a safety seat convenient to open and close, belonging to the field of nursing products, comprising a frame, wherein the frame is provided with a left vertical rod and a right vertical rod which are opposite to each other and are approximately vertically placed; each upright post is fixedly connected with a connecting frame, and a seat structure can be horizontally and rotatably connected to the tail end of the connecting frame; the seat structure includes a seat, a seat back, and armrests arranged substantially perpendicular to each other, and the seat back is rotatably connected to the armrests. When opening the handrail to make things convenient for the user from top to bottom during the safety seat, the back of the chair can move towards the handrail rotates to can not increase the radius of opening of handrail, so the utility model discloses a safety seat has increased the convenience when user uses, need not demolish the back of the chair or remove safety seat just can make things convenient for the user from top to bottom safety seat.

Description

Safety seat convenient to open and close

Technical Field

The utility model relates to a nursing product field especially relates to a convenient safe thing to sit on that opens and shuts.

Background

For the old or disabled with mobility disabilities, especially the disabled with mobility disabilities of lower limbs, such as the old with weak lower limbs or the patient who has just performed an operation, they can only lie down in bed every day, perhaps with the help of armrests, but their movement is usually accomplished with the help of movable seating furniture, such as a wheelchair. Wheelchairs are the most common type of seating apparatus used to assist in the movement of persons with impaired mobility of the lower extremities. When using a conventional wheelchair, a user generally needs others to sit on the wheelchair, and then the user can rotate the wheels of the wheelchair by himself or move the wheelchair by pushing the wheelchair. However, it is troublesome for the people with weak lower limbs to get on or off the wheelchair and sit stably, and they are prone to fall down on the wheelchair due to the weak lower limbs and even fall down from the seat of the wheelchair.

Therefore, after the old or disabled people sit on the wheelchair, the guardrails are usually pulled on the periphery of the wheelchair surface, especially during the movement of the wheelchair, the guardrails must be pulled and fixed, otherwise the middle guardrails are opened, so that the patients can slide down from the wheelchair surface, and danger is generated. When a user sits on the wheelchair to a destination, such as a toilet, right above the toilet, the armrests on the two sides of the wheelchair and the back of the chair behind the wheelchair need to be opened, usually by rotating the wheelchair to the left and right, so that the user can get off the wheelchair and sit on the toilet.

In addition, the existing common wheelchair capable of opening the left guardrail and the right guardrail usually divides the chair back into two pieces which are respectively fixed on the armrests at the same side and rotate to open along with the armrests. However, since the toilet for home use is usually provided with a water tank placed against a wall, it is inconvenient to open the guard rail by rotating after the wheelchair is moved above the toilet, and the backrest is blocked by the water tank during rotation, so that a certain gap needs to be reserved between the water tank and the backrest, and especially, a gap with a correct width needs to be left by adjusting the position of the wheelchair back and forth every time. This is inconvenient, and once the right and left guardrails are not opened by rotation, the user is inconvenient to get off the chair surface, especially considering that the user is usually the old or the disabled with inconvenient legs and feet or the general weak patient who has just been operated.

At present, a wheelchair with openable guardrails is also provided, wherein a chair back is disassembled and then is upwards removed, and then left and right guardrails are opened. This requires the assistance of a layman who cannot get on or off the wheelchair by himself or herself without opening the barrier. But it is inconvenient in view of privacy of the behavior such as defecation.

Thus, the prior art is subject to further improvements and enhancements.

Disclosure of Invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved in the present invention is to provide a safety seat for old people, mobility-handicapped people, postoperative patients or disabled patients, which is convenient for users to open and get on and off.

In order to realize the purpose, the utility model discloses a safety seat convenient to open and close, which comprises a frame, wherein the frame is provided with a left vertical rod and a right vertical rod which are opposite to each other and are approximately vertically arranged; each upright post is fixedly connected with a connecting frame, the two connecting frames are approximately in the same direction, a rotating sleeve in the vertical direction is fixed at the tail end of each connecting frame, and a seat structure can be horizontally and rotatably inserted into the rotating sleeve through a rotating shaft; the seat structure comprises an approximately horizontal armrest, a side backrest is fixedly connected below the armrest, an approximately horizontal seat surface is arranged at the lower part of the side backrest, the left seat surface and the right seat surface are arranged oppositely, and a gap is formed between the two seat surfaces; the upper end of the rotating shaft is fixed on the lower side of the near end of the handrail; a seat back is rotatably attached to the distal ends of the armrests.

Preferably, the upper end of the rotating sleeve is provided with a protruding part, and the free end of the protruding part is provided with a groove in the vertical direction; the lifting part can be turned over up and down and is movably connected to the near end of the handrail through a horizontal rotating shaft, the lower end of the lifting part is fixedly connected with a bolt in the up-down direction, and the bolt is matched with the groove.

Preferably, a chair back rotating sleeve in the up-down direction is fixed at the far end of the armrest, the chair back comprises a chair back rotating shaft in the up-down direction, the chair back rotating shaft can be horizontally and rotatably inserted into the chair back rotating sleeve, and a damping structure is further arranged between the chair back rotating shaft and the chair back rotating sleeve.

More preferably, a limiting structure is further arranged between the chair back rotating sleeve and the chair back rotating shaft, and the limiting structure is used for limiting the opening angle between the chair back and the armrest to be not more than 90 degrees.

Further preferably, the limiting structure is: the chair back rotary sleeve is provided with a bulge bent to the rear of the chair back, or the chair back is provided with a bulge bent from the rear to the front of the handrail around the chair back rotary shaft.

Preferably, the two ends of the approximately horizontal pedal are respectively fixed at the lower parts of the two upright rods and are used for placing the feet of a user.

More preferably, a pedal baffle protruding upwards is further fixed on the pedal and close to the seat.

Preferably, the device further comprises at least one pair of wheels, and the wheels are mounted at the lower part of the vertical rod.

Preferably, the connecting device further comprises a left cross rod and a right cross rod which are approximately horizontal, the cross rods and the connecting frame face to the same direction, and the two cross rods are vertically fixed to the lower portions of the vertical rods on the same side in the same direction.

More preferably, the lower side of each said cross bar is provided with at least two spaced wheels along its length.

Further preferably, the set of wheels is a bull wheel, which the user manually rotates.

Preferably, the safety seat further comprises a control panel for operating and controlling the safety seat, and the control panel is arranged between the two vertical rods.

Preferably, the handle is connected to the upright.

The technical effects are as follows: the utility model discloses a safety seat convenient to open and close, which comprises a frame, wherein the frame is provided with a left vertical rod and a right vertical rod which are opposite to each other and are approximately vertically arranged; each upright post is fixedly connected with a connecting frame, and a seat structure can be horizontally and rotatably connected to the tail end of the connecting frame; the seat structure includes a seat, a seat back, and armrests arranged substantially perpendicular to each other, and the seat back is rotatably connected to the armrests. When opening the handrail to make things convenient for the user from top to bottom during the safety seat, the back of the chair can move towards the handrail rotates to can not increase the radius of opening of handrail, so the utility model discloses a safety seat has increased the convenience when user uses, need not demolish the back of the chair or remove safety seat just can make things convenient for the user from top to bottom the safety seat.

Drawings

Fig. 1 is a schematic view of the overall structure of a safety seat convenient to open and close according to a preferred embodiment of the present invention;

fig. 2 is an enlarged view of the connection structure of the connecting frame and the armrest of the safety seat convenient to open and close according to a preferred embodiment of the present invention;

fig. 3 is an enlarged view of a backrest structure of a safety seat convenient to open and close according to a preferred embodiment of the present invention.

Fig. 4 is an enlarged view of the pedal structure of the safety seat convenient to open and close according to a preferred embodiment of the present invention.

Fig. 5 is a schematic view of the whole structure of the easy-to-open safety seat of the present invention equipped with large wheels.

In the figure: 110. the chair comprises a vertical rod, 120 cross rods, 130 wheels, 131 bull wheels, 140 pedals, 141 pedal baffles, 150 connecting frames, 160 handles, 170 working panels, 500 seat structures, 510 armrests, 511 rotating shafts, 512 lifting parts, 520 grooves, 530 bolts, 540 rotating sleeves, 545 rotating shafts, 550 seat surfaces, 560 chair backs, 561 chair back rotating shafts, 562 chair back rotating sleeves and 570 side supports.

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly understood and appreciated by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.

In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.

The utility model discloses a convenient safe thing to sit on that opens and shuts supplies the adynamic personnel of low limbs, uses like users such as old man or postoperative patient or low limbs disabled patient, the overall structure of safe thing to sit on is shown as figure 1, including the frame, the frame is made by the great material of intensity usually, for example metal material, including iron and steel material, aluminium alloy material etc.. In particular, the frame comprises two opposite spaced apart, substantially vertically positioned uprights 110, and on the uprights 110, preferably substantially centrally, a connecting frame 150 is fixed, the connecting frame 150 being substantially horizontally arranged, and the two connecting frames 150 pointing in substantially the same direction.

As shown in an enlarged view of fig. 2 in which the link frame 150 is connected to the armrest 510, a vertically rotating sleeve 540 is fixedly provided at the end of the link frame 150, and a seat structure 500 is inserted into the rotating sleeve 540 through a rotating shaft 545 so as to be horizontally rotatable. The seat structure 500 can be horizontally rotated about the rotary sleeve 540 to be opened or closed, thereby facilitating the up and down movement of the user.

For example, when the user needs to sit on the seat 550, the user first moves the safety seat to the side of the user, then lifts the hip of one side, rotates the seat 550 of the side to the lower part of the hip of the side, puts down the hip of the side, lifts up the hip of the other side, rotates the seat 550 of the other side to the lower part of the hip, and puts down the hip, so that the user can sit on the seat 550. The user may move the chair seat 550 away by raising the hips and rotating the hips out of the chair seat 550.

In order to secure sufficient strength of the link 150, the vertical width of the link 150 is preferably greater than the horizontal width as shown in fig. 2, in consideration of the fact that the force of the seat structure 500 on the link 150 is in the vertical direction when the user is seated on the seat structure 500.

Specifically, as shown in fig. 1, the seat structure 500 includes a substantially horizontal armrest 510, a side support 570 fixed below the armrest 510 in the vertical direction, and a substantially horizontal seat surface 550 provided below the side support 570, for example, fixed vertically. Also, when the left and right seat structures 500 are closed, the left and right seat surfaces 550 are also facing each other, and a certain gap should be left between the two seat surfaces 550 to prevent the hip of the user from being caught when closed. In most cases, the left and right seat surfaces 550 are substantially coplanar. Since the height of the seat 550 is lower than the height of the armrests 510 and the side rests 570, the user cannot slip down in the left-right direction.

Specifically, as shown in fig. 2, the upper end of the rotary shaft 545 is fixed to the proximal lower side of the armrest 510. The seat structure 500 is rotatably coupled to the link frame 150 by means of the rotation shaft 545 under the armrest 510 to be opened and closed. So there is a certain requirement for the material strength of the connection frame 150. Also, the diameter of the rotation shaft 545 is preferably only slightly smaller than the inner diameter of the rotation sleeve 540, i.e., to ensure smooth rotation. In a preferred embodiment, the lower end of the rotating shaft 545 is exposed out of the rotating sleeve 540, and a fixing ring or the like is further sleeved on the lower end to further increase the stability of the rotating shaft 545 in cooperation with the rotating sleeve 540 and prevent the seat structure 500 from falling off.

With continued reference to fig. 2, at the proximal end of the armrest 510, a lifting portion 512 capable of being turned upside down is disposed, which is movably connected to the proximal end of the armrest through a horizontal rotation shaft 511, and at the lower end of the lifting portion 512, a vertical pin 530 is fixedly connected. Accordingly, at the upper end of the rotary sleeve 540, a protrusion is provided, and a free end of the protrusion is opened with a groove 520 in an up-and-down direction. The latch 530 is adapted to the groove 520, that is, when the rotation shaft 545 of the seat structure 500 rotates to the closed position around the rotation sleeve 540 at the distal end of the connection frame 150, the lifting part 512 is put down around the rotation shaft 511, and the latch 530 falls down and just inserts into the groove 520, thereby locking the rotation position of the seat structure 500, on one hand, the seat structure 500 is prevented from being opened accidentally, the risk of falling of the user occurs, and on the other hand, the seat structure 500 is prevented from being rotated inwards continuously, so that the two seat surfaces 550 touch each other, and the hip of the user above is clamped. Therefore, in order to restrict the left and right rotation of the seat structure 500, the groove 520 and the latch 530 are slightly loosely fitted in the left and right direction, that is, after the insertion, the width of the latch 530 movable in the left and right direction in the groove 520 is substantially 0. Also, preferably, the opening of the recess 520 is approximately U-shaped, and preferably, the opening is directed in the front-rear direction.

Further, in order to prevent the user from falling off the rear of the safety seat, a seat back 560 is provided at the rear of the safety seat, specifically, at the rear upper side of the seat 550, i.e., at the distal end connected to the armrest 510. Specifically, the backrest 560 includes two left and right armrests 510 rotatably connected to distal ends of the left and right armrests 510, respectively, as shown in the enlarged view of fig. 3, a backrest rotation sleeve 562 is fixed to the distal end of the armrest 510 in the up-down direction, and the backrest 560 includes a backrest rotation shaft 561 in the up-down direction, and after the assembly is completed, the backrest rotation shaft 561 is inserted into the backrest rotation sleeve 562, and the backrest rotation shaft 561 is horizontally rotatable in the backrest rotation sleeve 562. Specifically, when it is desired to open the seat structure 500, the seat back 560 is then rotated toward the armrest 510 to reduce the radius of rotation of the seat structure 500, preventing the seat back 560 from touching an obstacle, such as a toilet tank or the like. When the seat structure 500 is fully opened, the seat back rests in a final position adjacent the armrest 510 so that the seat structure 500 does not contact any obstructions when closed. This may be accomplished by providing a damping structure, optionally a flexible shim or the like, between the back pivot shaft 561 and the back pivot sleeve 562. When the user sits on the seat 550, the user can use the back to easily push the chair back 560 to the outermost side, away from the closed position of the arm rests 510.

To further ensure that the chair back 560 does not open outward due to the paralyzed patient leaning back when the chair back 560 is closed, in a preferred embodiment, a limit structure is further provided between the chair back 560 and the armrest 510, and the limit structure is used for limiting the opening angle between the chair back 560 and the armrest 510 to be not more than 90 degrees. For example, the backrest rotation sleeve 562 is provided with a protrusion bending to the back of the backrest, or the backrest 560 is provided with a small protrusion bending backwards and forwards from the back around the backrest rotation axis 561, so that when the backrest 560 rotates to a position approximately vertical to the armrest 510, the backrest 560 is locked to prevent the backrest 560 from continuing to rotate backwards.

At this time, the left, right, and rear sides of the entire seat 550 are blocked by the blocking structures, and at the front side, if similar blocking structures are provided, the legs of the user cannot be easily placed. Therefore, in a preferred embodiment, a substantially horizontal pedal 140 is disposed at the lower portion of the two upright posts 110, especially at a height close to the ground, and both ends of the pedal 140 are respectively fixed to the upright posts 110 for placing both feet of the user. And, more preferably, the height position of the pedal 140 on the upright 110 is adjustable, thereby giving the user a better experience.

Of course, the step 140 may be connected to other auxiliary structures that are substantially parallel to the upright 110, instead of being directly connected to the upright 110. The present invention is not limited thereto. One benefit of being directly connected to the uprights 110 is to help fix the relative positions of the two uprights 110.

In a more preferred embodiment, in order to prevent the user's foot from slipping off the step plate 140, as shown in fig. 4, an upwardly protruding step plate 141 is fixedly provided on the step plate 140 at a portion adjacent to the seat surface. Thereby further ensuring the safety of the user sitting on the seat surface 550.

It is preferable that a pair of wheels 130 is installed at the lower portion of the vertical rod 110 in consideration that the safety seat is mostly used to assist the movement of the user.

In particular, in view of the stability of the safety seat, in order to make the whole gravity center fall inside the orthographic projection of the safety seat on the ground, two substantially horizontal crossbars 120 are respectively connected to the two uprights 110, preferably at the lower positions of the uprights 110, the crossbars 120 and the connecting frames 150 face the same direction, and the length of the crossbars 120 between the ground contact points exceeds the front-rear width of the seat structure 500, so as to ensure that the gravity center of the seat structure 500 falls inside the orthographic projection of the safety seat on the ground.

And, when the wheels 130 are installed between the safety seat and the ground, the wheels 130 can be conveniently installed on the rails 120 to rotate, especially, installed opposite to each other on the left and right rails 120. In view of the stability of the safety seat, at least two separate wheels 130 should be provided on each crossbar 120. In particular, preferably, as shown in fig. 5, the wheels 130 near the upright 110 can be selected to be large wheels 131 to allow the user to manually roll himself, so that the safety seat can be moved by himself, further increasing the self-care ability and confidence of the user. In this case, the large wheel 131 is preferably directly mounted on the upright 110 at a relatively high position, for example, near the height of the seat 550. However, in a better embodiment, in order to increase the stability of the whole safety seat in movement, the height of the axle position of the large wheel 131 is preferably higher than the height of the seat surface 550, or as shown in fig. 5, the large wheel 131 is installed in front of the vertical rod 110. Accordingly, the other pair of wheels 130 are still small wheels, and the cross bar 120 may be bent downward in order to secure the stability of the safety seat. Alternatively, the cross bar 120 is fixedly coupled to the lower portion of the vertical bar 110.

In a better embodiment, in order to further increase the stability of the connection between the two vertical rods 110, a working panel 170 is further provided near the height of the armrest 510, and the working panel 170 can be used as a table top for users to place some objects, and can also be used as a control panel to electrically control the actions of the safety seat. Of course, in this case, the safety seat is provided with motors for different purposes, and the motors are driven to operate. Therefore, the user can conveniently control the corresponding actions of the safety seat, such as moving or lifting and the like, and even can be provided with an alarm bell and a voice device. Thereby further increasing the safety of the safety harness.

In another embodiment, a handle 160 may be further disposed on the safety seat, for example, as shown in fig. 1, the handle 160 is in a zigzag shape and is fixedly connected to the frame, for example, directly connected to the upright 110, so as to facilitate the movement of the safety seat by other people.

To sum up, the utility model discloses a safety seat convenient to open and close, which comprises a frame, wherein the frame is provided with a left vertical rod 110 and a right vertical rod 110 which are opposite to each other and are approximately vertically arranged, each vertical rod 110 is fixedly connected with a connecting frame 150, and a seat structure 500 can be horizontally and rotatably connected with the tail end of the connecting frame 150; the seat structure 500 includes a seat surface 550, a seat back 560, and an armrest 510 disposed substantially perpendicular to each other, and the seat back 560 is rotatably coupled to the armrest 510. When opening handrail 510 to make things convenient for the user to go up and down during the safety seat, back of the chair 560 can rotate towards handrail 510 to can not increase handrail 510's the radius of opening, so the utility model discloses a safety seat has increased the convenience when user uses, need not demolish back of the chair 560 or remove safety seat just can the person of facilitating the use go up and down safety seat.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. A safety seat convenient to open and close is characterized by comprising a frame, wherein the frame is provided with a left upright rod and a right upright rod which are opposite to each other and are separated and are approximately vertically arranged;

each upright post is fixedly connected with a connecting frame, the two connecting frames are approximately in the same direction, a rotating sleeve in the vertical direction is fixed at the tail end of each connecting frame, and a seat structure can be horizontally and rotatably inserted into the rotating sleeve through a rotating shaft;

the seat structure comprises an approximately horizontal armrest, a side backrest is fixedly connected below the armrest, an approximately horizontal seat surface is arranged at the lower part of the side backrest, the left seat surface and the right seat surface are arranged oppositely, and a gap is formed between the two seat surfaces;

the upper end of the rotating shaft is fixed on the lower side of the near end of the handrail;

a seat back is rotatably attached to the distal ends of the armrests.

2. The safety seat convenient to open and close as claimed in claim 1, wherein the upper end of the rotary sleeve is provided with a projection, and the free end of the projection is provided with a groove in the up-and-down direction;

the lifting part can be turned over up and down and is movably connected to the near end of the handrail through a horizontal rotating shaft, the lower end of the lifting part is fixedly connected with a bolt in the up-down direction, and the bolt is matched with the groove.

3. The safety seat convenient to open and close as claimed in claim 1, wherein a seat back rotating sleeve is fixed at the far end of the armrest in the up-down direction, the seat back comprises a seat back rotating shaft in the up-down direction, the seat back rotating shaft can be horizontally and rotatably inserted into the seat back rotating sleeve, and a damping structure is further arranged between the seat back rotating shaft and the seat back rotating sleeve.

4. The safety seat convenient to open and close as claimed in claim 3, wherein a limiting structure is further arranged between the seat back rotating sleeve and the seat back rotating shaft, and the limiting structure is used for limiting the opening angle between the seat back and the armrest to be not more than 90 degrees.

5. The easy-to-open safety seat as claimed in any one of claims 1 to 4, wherein a substantially horizontal pedal is fixed at both ends thereof to the lower portions of the two vertical rods, respectively, for receiving both feet of the user.

6. The safety seat convenient to open and close as claimed in claim 5, wherein a pedal baffle protruding upwards is fixed on the pedal and close to the seat.

7. The easy-to-open safety harness of claim 1 further comprising at least one pair of wheels mounted to a lower portion of said uprights.

8. The easy-to-open safety seat as claimed in claim 1, further comprising left and right horizontal bars facing the same direction as the connecting frame, the two bars being vertically fixed to the lower parts of the vertical bars on the same side in the same direction.

9. The open-close facilitating safety harness of claim 8 wherein the underside of each said cross bar is provided with at least two spaced wheels along its length.

10. The safety seat convenient to open and close of claim 1, further comprising a control panel for operating and controlling the safety seat, wherein the control panel is arranged between the two vertical rods.

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