CN113440354B

CN113440354B - Folding armrest, seat and nursing bed

Info

Publication number: CN113440354B
Application number: CN202110754417.7A
Authority: CN
Inventors: 李希华; 王心醉; 辛海兵; 蔡后勇; 李鹏飞; 李兆波; 张冰; 张亚伦; 梁岳青
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2022-07-05
Anticipated expiration: 2041-07-01
Also published as: CN113440354A

Abstract

The invention discloses a folding armrest, a seat and a nursing bed, wherein the folding armrest comprises an armrest first section, an armrest tail section, a rotating central block and a fixing piece, the armrest first section is connected to a backrest of the seat, the armrest first section is provided with an accommodating groove, the end part of the armrest tail section is provided with a rotating groove, one end of the armrest tail section, which is provided with the rotating groove, extends into the accommodating groove, the notch of the rotating groove avoids the notch of the accommodating groove, the rotating central block is arranged in the rotating groove, the rotating central block can rotate relative to the groove wall of the rotating groove, and the fixing piece penetrates through the groove wall of the accommodating groove and the rotating central block so as to fixedly connect the armrest first section and the rotating central block. According to the technical scheme, the handrail tail section can be folded on the handrail head section through rotation, so that the total length of the folded handrail is reduced, and the handrail tail section can be unfolded from the handrail head section through rotation, so that the total length of the folded handrail is increased.

Description

Folding armrest, seat and nursing bed

Technical Field

The invention relates to the technical field of chairs, in particular to a folding armrest, a chair and a nursing bed.

Background

The nursing bed is designed according to the bedridden life habit and treatment needs of patients, can accompany the nursing of family members, has a plurality of nursing functions and operating buttons, and is safe to use in an insulating way. The nursing bed comprises a bed body and a foldable wheelchair, the foldable wheelchair is completely unfolded and fixed on the bed body, the nursing bed with the bed function can be obtained, and the foldable wheelchair is folded, so that the wheelchair with the wheelchair function can be obtained.

According to the use requirement of the nursing bed, the armrests of the wheelchair are arranged on the back surface of the backrest frame, when the foldable wheelchair is folded to be used as the wheelchair, the armrests need to be turned over and lifted from the back surface of the backrest frame to the front surface of the backrest frame and are parallel to the wheelchair seat cushion, and the space of the backrest frame is limited, so that the length of the armrests is limited, the armrests of the wheelchair are too short, and the use of a user is influenced.

Disclosure of Invention

The invention mainly aims to provide a folding armrest, a seat and a nursing bed, and aims to solve the technical problem that the armrest of a wheelchair on the nursing bed is too short.

To achieve the above object, the present invention provides a foldable handrail, comprising:

the armrest comprises an armrest first section and a armrest second section, wherein the armrest first section is connected to a backrest of a seat and is provided with a containing groove;

the end part of the handrail tail section is provided with a rotating groove, one end of the handrail tail section, which is provided with the rotating groove, extends into the accommodating groove, and the notch of the rotating groove avoids the notch of the accommodating groove;

the rotating center block is arranged in the rotating groove and can rotate relative to the groove wall of the rotating groove;

the fixing piece penetrates through the groove wall of the accommodating groove and the rotating central block so as to fixedly connect the handrail head section with the rotating central block.

Optionally, the folding handrail further comprises:

the telescopic assembly is arranged on the rotating center block, the telescopic assembly is arranged in the telescopic groove, a clamping protrusion is arranged on the annular inner wall of the rotating groove, the telescopic assembly is abutted against the clamping protrusion to prevent the handrail tail section from moving towards the handrail head section from being folded, and the telescopic assembly is retractable to the telescopic groove to separate from the clamping protrusion.

Optionally, still be provided with spacing arch on the rotation center piece, spacing arch can with the protruding butt of card, spacing arch with stretch out flexible groove be formed with spacing space between the flexible subassembly, spacing space is used for holding the card is protruding.

Optionally, the telescopic assembly may elastically abut against an annular inner wall of the rotation slot.

Optionally, the folding handrail further comprises:

the protecting cover, the protecting cover lid is located the outer wall of storage tank with the swivelling chute is in order to incite somebody to action the swivelling centre piece lid is located in the swivelling chute, the mounting wears to locate in proper order the protecting cover the cell wall of storage tank with the swivelling centre piece is in order to incite somebody to action the protecting cover is fixed in the handrail head.

Optionally, the folding armrest further comprises:

the push rod penetrates through the long groove and penetrates through the bottom walls of the telescopic assembly and the rotating groove, and the push rod can drive the telescopic assembly to stretch in the telescopic groove when sliding in the long groove.

Optionally, the protecting cover is circular protecting cover, be provided with first arc wall on the outer wall of storage tank, handrail tail section is provided with the one end of swivelling chute is provided with the second arc wall, first arc wall with the second arc wall all with the outer peripheral wall looks adaptation of protecting cover.

Optionally, the folding angle of the handrail tail section relative to the handrail head section is 0-180 °.

Furthermore, the present invention also proposes a seat comprising:

the folding handrail mentioned in any one of the above technical solutions;

the seat comprises a seat body, wherein the armrest head section of the folding armrest is connected to the backrest of the seat.

Furthermore, the present invention also provides a nursing bed, comprising:

in the seat according to any one of the above technical solutions, the seat is a folding seat;

the folding chair can be unfolded and fixed on the bed body.

According to the technical scheme, the handrail tail section is rotatably connected to the handrail head section through the limit of the groove wall of the containing groove and the limit of the rotating center block to the groove wall of the rotating groove, so that the structure can be simplified, compared with the scheme that the two parts are rotatably connected through the rotating shaft in the prior art, the rotating center block in the scheme of the embodiment is shorter in length, and the folding stability of the handrail tail section relative to the handrail head section can be improved; when the foldable armrest of the embodiment is applied to the backrest of the nursing bed, in the process of lifting the foldable armrest to the front of the backrest, the armrest tail section can be folded at the armrest head section through rotation, so as to reduce the total length of the foldable armrest, so that the folded foldable armrest can be conveniently lifted through the limited space of the backrest, so as to lift the foldable armrest to the front of the backrest, and then the armrest tail section is rotated to unfold the armrest tail section from the armrest head section, so as to increase the total length of the foldable armrest, and is convenient for a user to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other structures can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of a nursing bed according to an embodiment of the present invention;

FIG. 2 is a schematic view of the seat of FIG. 1;

FIG. 3 is a schematic view of the folded armrest of FIG. 2 in an unfolded state;

FIG. 4 is a structural view illustrating a folded state of the foldable handrail in FIG. 2;

fig. 5 is a first exploded view of the folded handrail of fig. 2;

fig. 6 is a second schematic view of the exploded structure of the folded handrail of fig. 2;

FIG. 7 is a schematic view of the assembled state of the rotation center block and the telescopic assembly in FIG. 5;

fig. 8 is a schematic structural view of the connecting member in fig. 5.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a folding armrest which is applied to a wheelchair of a nursing bed and used for solving the technical problem that the wheelchair armrest on the nursing bed is too short.

In an embodiment of the present invention, as shown in fig. 2 to 5, the foldable armrest includes an armrest first section 1, an armrest tail section 2, a rotation center block 3 and a fixing member 4, the armrest first section 1 is connected to the backrest of the seat 300, the armrest first section 1 is provided with an accommodating groove 11, an end portion of the armrest tail section 2 is provided with a rotation groove 221, one end of the armrest tail section 2 provided with the rotation groove 221 extends into the accommodating groove 11, a notch of the rotation groove 221 avoids a notch of the accommodating groove 11, the rotation center block 3 is arranged in the rotation groove 221, the rotation center block 3 is rotatable relative to a groove wall of the rotation groove 221, and the fixing member 4 penetrates through the groove wall of the accommodating groove 11 and the rotation center block 3 to fixedly connect the armrest first section 1 and the rotation center block 3.

According to the technical scheme, the first handrail section 1 is provided with the accommodating groove 11, the end part of the tail handrail section 2 is provided with the rotating groove 221, the accommodating groove 11 is used for accommodating the tail handrail section 2, so that one end, provided with the rotating groove 221, of the tail handrail section 2 can extend into the accommodating groove 11, the rotating center block 3 is arranged in the rotating groove 221, the overall height of the rotating center block 3 and the rotating groove 221 is reduced, the size of the folding handrail 100 is reduced, the fixing piece 4 penetrates through the groove wall of the accommodating groove 11 and the rotating center block 3 to fixedly connect the first handrail section 1 with the rotating center block, and the opening of the rotating groove 221 avoids the notch of the accommodating groove 11, so that the rotating center block 3 can be limited by the inner wall of the accommodating groove 11, the rotating center block 3 is prevented from being separated from the rotating groove 221, and the tail handrail section 2 is connected to the first handrail section 1 through the rotating center block 3; the rotation center block 3 can rotate relative to the groove wall of the rotation groove 221, and because the rotation center block 3 is fixedly connected with the handrail first section 1 through the fixing piece 4, the motion state of the rotation center block is the same as that of the handrail first section 1, and because the notch of the rotation groove 221 avoids the notch of the accommodating groove 11, the handrail tail section 2 can rotate relative to the handrail first section 1, so that the handrail tail section 2 can be folded on the handrail first section 1; the handrail tail section 2 is rotatably connected to the handrail head section 1 through the limit of the groove wall of the containing groove 11 to the handrail tail section 2 and the limit of the rotating center block 3 to the groove wall of the rotating groove 221, so that the structure can be simplified, and compared with the scheme that two parts are rotatably connected through the rotating shaft in the prior art, the rotating center block 3 in the scheme of the embodiment is shorter in length, and the folding stability of the handrail tail section 2 relative to the handrail head section 1 can be improved; when the foldable armrest 100 of the present embodiment is applied to the backrest of the seat 300 of the nursing bed, during the process of lifting the foldable armrest 100 to the front of the backrest, the armrest tail section 2 may be folded on the armrest head section 1 by rotation to reduce the total length of the foldable armrest 100, so as to facilitate the foldable armrest 100 to be lifted through the limited space of the backrest of the seat 300, so as to lift the foldable armrest 100 to the front of the backrest, and then the armrest tail section 2 is rotated to unfold the armrest tail section 2 from the armrest head section 1, so as to increase the total length of the foldable armrest 100, which is convenient for the user to use.

In this embodiment, the fixing element 4 may be a screw, and the rotation center block 3 is fixed to the armrest head segment 1 by at least two screws, so that the rotation center block 3 can be prevented from rotating relative to the armrest head segment 1, and the movement state of the rotation center block 3 is the same as that of the armrest head segment 1.

In this embodiment, the sum of the height of the rotation center block 3 in the opening direction of the rotation groove 221 and the height of the rotation groove 221 is smaller than the width of the accommodating groove 11 in the opening direction of the rotation groove 221, so that the groove wall of the accommodating groove 11 limits the groove wall of the rotation groove 221 to separate from the limit of the rotation center block 3, so that the armrest tail section 2 can be folded relative to the armrest head section 1.

In an embodiment, as shown in fig. 5, 7 and 8, the foldable handrail 100 further includes a telescopic assembly 5, the rotation center block 3 is provided with a telescopic slot 31, the telescopic assembly 5 is disposed in the telescopic slot 31, the annular inner wall of the rotation slot 221 is provided with a locking protrusion 222, the telescopic assembly 5 abuts against the locking protrusion 222 to prevent the handrail tail section 2 from being folded towards the handrail head section 1, and the telescopic assembly 5 can be retracted into the telescopic slot 31 to be separated from the locking protrusion 222. When a user needs to use the handrail, the handrail tail section 2 needs to be unfolded relative to the handrail head section 1, in the process that the handrail tail section 2 is unfolded relative to the handrail head section 1 from the folded state, the clamping protrusions 222 arranged on the annular inner wall of the rotating groove 221 also rotate relative to the handrail head section 1 along with the handrail tail section 2 until the clamping protrusions 222 cross the telescopic assembly 5, at the moment, the handrail tail section 2 is reversely rotated, the clamping protrusions 222 can be abutted against the telescopic assembly 5, so that the handrail tail section 2 is prevented from reversely rotating through the abutting of the clamping protrusions 222 and the telescopic assembly 5, the handrail tail section 2 is always in the unfolded state and cannot reversely rotate relative to the handrail head section 1 to be folded, and the user can conveniently use the folded handrail 100; when the user need not use folding handrail 100, can give external force for flexible subassembly 5 contracts to in the flexible groove 31, so that flexible subassembly 5 separates with card arch 222, when card arch 222 is along with handrail tail section 2 for handrail head section 1 forward rotation with handrail tail section 2 is folding handrail head section 1, card arch 222 can not receive external force or only receive frictional force, consequently handrail tail section 2 can be for handrail head section 1 reverse rotation, with handrail tail section 2 folding handrail head section 1 on, make things convenient for handrail tail section 2 for handrail head section 1's folding or expansion.

It will be understood that during the unfolding of the handrail tail section 2 relative to the handrail head section 1 from the folded state, the handrail tail section 2 rotates in the forward direction relative to the handrail head section 1, and during the folding of the handrail tail section 2 relative to the handrail head section 1 from the unfolded state, the handrail tail section 2 rotates in the reverse direction relative to the handrail head section 1.

In this embodiment, as shown in fig. 7, the telescopic assembly 5 includes an elastic member 51 and a telescopic member 52, the elastic member 51 is disposed between the telescopic member 52 and the bottom wall of the telescopic slot 31, so as to drive the telescopic member 52 to contract into the telescopic slot 31 or extend out of the telescopic slot 31 through the elastic member 51, and when the telescopic member 52 extends out of the telescopic slot 31, the elastic member can abut against the protruding block 222 to prevent the handrail tail section 2 from rotating reversely. Specifically, the elastic member 51 is a spring.

In this embodiment, as shown in fig. 7, the end of the telescopic member 52 abutting against the locking protrusion 222 has a curved surface, and the extending direction of the curved surface is the same as the rotating direction of the handrail tail section 2 when the handrail tail section 2 is unfolded, so that the locking protrusion 222 can pass over the telescopic member 52, and the resistance of the telescopic member 52 to the forward rotation of the locking protrusion 222 is reduced.

In this embodiment, the external force applied to the telescopic assembly 5 to retract the telescopic assembly 5 into the telescopic slot 31 may be manually applied by a human or automatically applied by an air cylinder.

In an embodiment, as shown in fig. 7 and 8, the rotation center block 3 is further provided with a limiting protrusion 32, the limiting protrusion 32 can abut against the locking protrusion 222, a limiting space 33 is formed between the limiting protrusion 32 and the telescopic assembly 5 extending out of the telescopic slot 31, and the limiting space 33 is used for accommodating the locking protrusion 222 to prevent the handrail tail section 2 from rotating relative to the handrail head section 1, so that the handrail tail section 2 can keep the unfolded state unchanged, which is convenient for the user to use the foldable handrail 100 and improves the user experience.

In an embodiment, as shown in fig. 5, the retractable assembly 5 can elastically abut against the annular inner wall of the rotation groove 221, and since the retractable assembly 5 can elastically abut against the annular inner wall of the rotation groove 221, there is a friction force between the retractable assembly 5 and the annular inner wall of the rotation groove 221, when the handrail tail section 2 is folded into the handrail head section 1, the handrail tail section 2 can be prevented from unfolding due to its own weight and the like by the friction force between the retractable assembly 5 and the annular inner wall of the rotation groove 221, so that the folding handrail 100 can maintain the folded state.

It can be understood that, when the telescopic assembly 5 is provided, the pre-tightening force between the telescopic assembly 5 and the annular inner wall of the rotating groove 221 can be adjusted by adjusting the telescopic length of the telescopic assembly 5, so as to adjust the magnitude of the friction force between the telescopic assembly 5 and the annular inner wall of the rotating groove 221, so that the friction force between the telescopic assembly 5 and the annular inner wall of the rotating groove 221 is greater than the gravity of the handrail tail section 2, so that the handrail tail section 2 can maintain the folded state.

In an embodiment, an elastic washer is disposed between the rotation center block 3 and the annular inner wall of the rotation groove 221, and the elastic washer can reduce a gap between the rotation center block 3 and the annular inner wall of the rotation groove 221, improve the stability of the rotation of the handrail tail section 2, and increase the friction force between the telescopic assembly 5 and the annular inner wall of the rotation groove 221.

In an embodiment, as shown in fig. 3 to 5, the foldable handrail 100 further includes a protecting cover 6, the protecting cover 6 is disposed on the outer wall of the accommodating groove 11 and the rotating groove 221 to cover the rotating center block 3 in the rotating groove 221, and the fixing member 4 is sequentially disposed through the protecting cover 6, the groove wall of the accommodating groove 11 and the rotating center block 3 to fix the protecting cover 6 to the handrail head section 1. The part of the rotating groove 221 is located in the containing groove 11, and the other part of the rotating groove 221 is located outside the containing groove 11, so that the protecting cover 6 can be covered on the outer wall of the containing groove 11 and the rotating groove 221, and the rotating center block 3 located outside the containing groove 11 is covered in the rotating groove 221, so that the rotating center block 3 is protected by the protecting cover 6, foreign objects are prevented from entering the rotating groove 221 to influence the rotation of the handrail tail section 2, and the safety performance of the folding handrail 100 can be improved, for example, fingers are prevented from being pinched by the rotating center block 3; the protective cover 6 can also reduce the connection gap between the armrest tail section 2, the armrest head section 1 and the rotation center block 3 to improve the integrity of the folding armrest 100.

In this embodiment, as shown in fig. 3 and 5, a protective cover 6 may be further disposed on a side of the handrail tail section 2 away from the rotation center block 3 to improve the integrity of the folded handrail 100 and reduce the connection gap between the handrail tail section 2 and the handrail head section 1.

In an embodiment, as shown in fig. 3 and fig. 5, the foldable handrail 100 further includes a push rod 7, the protective cover 6 is provided with a long groove 61, the push rod 7 penetrates through the long groove 61 and penetrates through the bottom walls of the telescopic assembly 5 and the rotating groove 221, the push rod 7 can drive the telescopic assembly 5 to extend and retract in the telescopic groove 31 when sliding in the long groove 61, so that a user can drive the telescopic assembly 5 to retract into the telescopic groove 31 by pushing the push rod 7 to slide in the long groove 61, or drive the telescopic assembly 5 to extend out of the telescopic groove 31, thereby facilitating the handrail tail section 2 to be folded or unfolded by controlling the extension and retraction of the telescopic assembly 5.

In this embodiment, a user can push the push rod 7 to slide in the long groove 61 to drive the telescopic assembly 5 to retract into the telescopic groove 31, and when the user releases the push rod 7, the telescopic assembly 5 can automatically reset to extend out of the telescopic groove 31.

It can be understood that when the user does not need to use the foldable handrail 100, the user can push the push rod 7 to drive the telescopic assembly 5 to retract into the telescopic slot 31, and then reversely rotate the handrail tail section 2 to fold the handrail tail section 2 onto the handrail head section 1, when the tail section of the foldable handrail 100 is folded, the user can release the push rod 7 when the clamping protrusion 222 passes over the telescopic assembly 5, and the friction between the telescopic assembly 5 and the annular inner wall of the rotary slot 221 is small, so that the user is not influenced to continue to fold the tail section of the foldable handrail 100; when the user need use folding handrail 100, only need the forward rotate handrail tail section 2 in order to expand handrail tail section 2 can, at the in-process that expands handrail tail section 2, when the protruding 222 of card crosses telescopic component 5, just can stop rotating handrail tail section 2, through telescopic component 5 and the protruding 222 butt of card this moment, can be so that handrail tail section 2 keeps the state of expanding.

In one embodiment, the push rod 7 is disposed through the wall of the receiving slot 11, the expansion piece 52 and the bottom wall of the rotating slot 221, so that the expansion piece 52 is driven by the push rod 7 to expand and contract in the expansion slot 31.

In an embodiment, as shown in fig. 3 to 6, the protecting cover 6 is a circular protecting cover 6, a first arc-shaped groove 12 is provided on the outer wall of the accommodating groove 11, the end of the handrail tail section 2 provided with the rotating groove 221 is provided with a second arc-shaped groove 211, the first arc-shaped groove 12 and the second arc-shaped groove 211 are both matched with the outer peripheral wall of the protecting cover 6, so that the outer peripheral wall of the protecting cover 6 can be attached to the groove walls of the first arc-shaped groove 12 and the second arc-shaped groove 211, so as to reduce the protecting cover 6, the gap between the handrail first section 1 and the handrail tail section 2, thereby improving the integrity of the folding handrail 100, avoiding the clamping of the folding handrail 100, also avoiding the folding handrail 100 from being clamped by foreign objects, and the like.

In this embodiment, as shown in fig. 3, when the handrail tail section 2 is completely unfolded relative to the handrail head section 1, the end of the handrail tail section 2 where the rotating groove 221 is provided is connected to the end of the handrail head section 1 where the accommodating groove 11 is provided, so as to reduce the gap between the connection of the protecting cover 6, the handrail head section 1 and the handrail tail section 2 and improve the integrity of the folding handrail 100.

In an embodiment, as shown in fig. 5, the handrail tail section 2 includes a holding means 21 and an adaptor 22, the holding means 21 is detachably connected with the adaptor 22, and the rotating groove 221 is disposed on the adaptor 22, so as to facilitate processing of the handrail tail section 2 and reduce the processing cost of the handrail tail section 2.

In this embodiment, the second arc-shaped slot 211 is disposed on the support means 21.

In one embodiment, as shown in fig. 3 and 4, the folding angle of the handrail tail section 2 relative to the handrail head section 1 is 0 ° to 180 °, so that the total length of the handrail tail section 2 when unfolded relative to the handrail head section 1 is the largest, and the total length when folded is the smallest, to fully utilize the folding function of the folding handrail 100.

In addition, as shown in fig. 2 to 4, the embodiment of the present invention further provides a seat, which includes a seat body 200 and the foldable armrest 100 according to any of the above embodiments, wherein the armrest head section 1 of the foldable armrest 100 is connected to the backrest of the seat 300.

The seat provided by the embodiment of the present invention comprises a seat body 200 and a foldable armrest 100, and the specific structure of the foldable armrest 100 refers to the above-mentioned embodiments, and since the present seat 300 adopts all the technical solutions of all the above-mentioned embodiments, at least all the advantages brought by the technical solutions of the above-mentioned embodiments are achieved.

In this embodiment, the seat 300 may be a normal non-wheeled seat 300, a wheelchair, or a folding chair.

In this embodiment, the first armrest segment 1 is rotatably disposed on the back of the backrest of the seat 300 at an end away from the receiving slot 11, when the foldable armrest 100 is used, the first armrest segment 1 of the foldable armrest 100 is rotated to the front of the backrest of the seat 300 through a gap of the frame of the backrest of the seat 300, and then the second armrest segment 2 is unfolded from the first armrest segment 1, so as to increase the length of the foldable armrest 100, thereby facilitating the use of the user.

In addition, as shown in fig. 1 and fig. 2, the embodiment of the present invention further provides a nursing bed, the nursing bed includes a bed 400 and the seat 300 according to any of the above embodiments, the seat 300 is a folding chair, and the folding chair can be unfolded and fixed on the bed 400.

In this embodiment, the folding chair can be unfolded and fixed on the bed 400, so that the folding chair in the unfolded state and the bed 400 are combined to form a bed, and the folding chair in the unfolded state can be detached from the bed 400, and the folding chair can be formed into the seat 300.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. A folding handrail, characterized in that the folding handrail comprises:

the fixing piece penetrates through the groove wall of the accommodating groove and the rotating central block so as to fixedly connect the armrest head section with the rotating central block;

the telescopic assembly is abutted against the clamping protrusion to prevent the tail section of the handrail from being folded towards the head section of the handrail, and can be retracted into the telescopic groove to be separated from the clamping protrusion; the rotating center block is also provided with a limiting bulge, the limiting bulge can be abutted against the clamping bulge, a limiting space is formed between the limiting bulge and the telescopic assembly extending out of the telescopic groove, and the limiting space is used for accommodating the clamping bulge; the telescopic assembly can be elastically abutted against the annular inner wall of the rotating groove.

2. The folding handrail of claim 1, wherein the folding handrail further comprises:

3. The folding handrail of claim 2, wherein the folding handrail further comprises:

4. The foldable handrail of claim 2, wherein the protecting cover is a circular protecting cover, a first arc-shaped groove is formed in the outer wall of the containing groove, a second arc-shaped groove is formed in the end, provided with the rotating groove, of the handrail tail section, and the first arc-shaped groove and the second arc-shaped groove are matched with the outer peripheral wall of the protecting cover.

5. A folding handrail as claimed in any one of claims 1 to 4, wherein the folding angle of the tail section of the handrail relative to the head section of the handrail is between 0 ° and 180 °.

6. A seat, characterized in that the seat comprises:

the folding handrail of any one of claims 1 to 5;

the seat comprises a seat body, wherein the armrest head section of the folding armrest is connected to the backrest of the seat body.

7. A care bed, characterized in that it comprises:

the seat of claim 6, which is a folding chair;

the folding chair can be unfolded and fixed on the bed body.