CN115281959A

CN115281959A - Multifunctional nursing bed

Info

Publication number: CN115281959A
Application number: CN202210980565.5A
Authority: CN
Inventors: 张永发; 刘凯
Original assignee: Jiangsu Yongfa Medical Equipment Technology Co ltd
Current assignee: Jiangsu Yongfa Medical Equipment Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-04

Abstract

The invention discloses a multifunctional nursing bed, which comprises a bed frame structure, an adjusting mechanism and a guardrail structure, wherein the bed frame structure comprises a supporting frame; the adjusting mechanism is arranged on the bedstead structure; the supporting frame is provided with a folding state and a resetting state which enable the frame and the adjacent frame to rotate relatively under the driving of the adjusting mechanism; the guardrail structure is arranged on the bedstead structure and comprises a self-locking structure; the self-locking structure comprises a first plate body, a second plate body and a limiting part, wherein the second plate body is connected with the first plate body in a sliding mode, and the limiting part is connected between the first plate body and the second plate body. The multifunctional nursing bed with the structure can be folded and reset after being folded by rotating the frame in the adjusting mechanism driving support frame relative to the adjacent frame, so that the posture adjusting process of a human body is promoted, the rising action of a nursed person can be promoted, the participation cost of nursing personnel is reduced, the self-locking structure is smoothly adjusted, and the guardrail structure is convenient to adjust.

Description

Multifunctional nursing bed

Technical Field

The invention relates to the technical field of medical instruments, in particular to a multifunctional nursing bed.

Background

The nursing bed is used for a patient with inconvenient movement to be hospitalized or used in home nursing, and compared with a common sickbed, the nursing bed is designed aiming at the bedridden life habit of the patient and the purpose of rehabilitation treatment so as to promote the safety and convenience of the daily life and the treatment period of the nursed patient.

At present, nursing bed adopts electronic mode to adjust the bed body gesture more, lets patient can sit up, eats, reads, activity such as chat, and nursing bed includes bedstead, backplate and drive actuating mechanism, and drive actuating mechanism includes driving piece and telescopic link, and the bedstead rotates with the backplate mutually to be connected, and the installation end of driving piece is connected with the bedstead, and the one end of telescopic link is connected with the drive end of driving piece, and the other end and the backplate of telescopic link rotate to be connected. The adjusting process of the back lifting bed has the advantages that the telescopic rod is acted by the driving piece to extend to act on the back plate, so that the back plate rotates relative to the bed frame and gradually turns over to a set position along the height direction, and the back lifting action of pushing the back of a human body by the back plate is completed. Usually, the nursing bed is provided with guard rails at two side positions thereof so as to achieve the purpose of limiting and protecting the human body.

The nursing bed of this structure can carry out the lifting to the human back, but it is not enough to human gesture regulatory ability, and nursing bed has the overall regulation inconvenience, the low problem of practicality.

Disclosure of Invention

The invention aims to solve the technical problems that the nursing bed in the prior art has insufficient capability of adjusting the human body posture, is inconvenient to adjust and has low practicability.

The invention provides a multifunctional nursing bed, which comprises:

a bed frame structure comprising support frames configured as at least three frames movably connected in series;

an adjusting mechanism mounted on the bed frame structure, the adjusting mechanism for driving the frame to rotate; the supporting frame is provided with a folding state and a resetting state which enable the frame and the adjacent frame to rotate relatively under the driving of the adjusting mechanism;

the guardrail structure is arranged on the bedstead structure and comprises a self-locking structure;

the self-locking structure comprises:

the first plate body is used for being connected with an armrest frame and comprises at least one first limiting part and a first guide part which are connected, and any first limiting part is formed on the side surface of a guide channel where the first guide part is located;

the second plate body is used for being connected with an assembly frame in a sliding mode, the second plate body is connected with the first plate body in a sliding mode and comprises at least one second limiting portion, a second guiding portion and a second shielding portion, the second limiting portion and the second shielding portion are arranged at intervals, any one of the second limiting portion and any one of the second shielding portion are formed on the side face of a guiding channel where the second guiding portion is located, and the extending direction of the first guiding portion is parallel to the extending direction of the second guiding portion;

the limiting piece is suitable for being fixedly connected with an assembly frame and is connected between the first plate body and the second plate body;

when the first plate body and the second plate body are driven by external force to synchronously slide along a first direction, the limiting piece is locked in a first limiting part and a second limiting part; after the limiting part is in the locked state, when the first plate body and the second plate body continue to be driven by external force to synchronously slide along the first direction, the limiting part has an unlocked state of sliding into the first guide part and the second guide part along the side wall of the second shielding part, and the limiting part is switched between the locked state and the unlocked state.

Optionally, in the above multifunctional nursing bed, the adjusting mechanism includes a first driving member and a second driving member, the mounting end of the first driving member is movably connected to the connecting frame, the driving end of the first driving member is movably connected to any one of the frames, the mounting end of the second driving member is movably connected to the connecting frame, and the driving end of the second driving member is movably connected to another one of the frames.

Optionally, in the above multifunctional nursing bed, the support frame includes a first frame, a second frame, and a third frame that are rotatably connected in sequence, the first frame is rotatably connected to the driving end of the first driving element, the driving end of the first driving element is disposed away from a joint between the first frame and the second frame, the third frame is rotatably connected to the driving end of the second driving element, and the driving end of the second driving element is disposed away from a joint between the second frame and the third frame.

Optionally, in the above multifunctional nursing bed, the second frame includes at least two loading frames rotatably connected to each other, and the second driving member is rotatably connected to any one of the loading frames.

Optionally, in the above multifunctional nursing bed, the bed frame structure further includes a first seat body, the first seat body is fixedly connected to a side of the first frame close to the connecting frame, and the first seat body is rotatably connected to the first driving member; and/or

The bedstead structure still includes the second pedestal, the second pedestal fixed connection is in the third frame is close to one side of link, the second pedestal with the second driving piece rotates to be connected.

Optionally, in the above multifunctional nursing bed, the adjusting mechanism further includes a lever member and a supporting member, the lever member has a first end and a second end, and the first end is rotatably connected to the second driving member;

the bearing assembly comprises a first supporting rod, the first supporting rod is connected with the connecting frame in a rotating mode, the second end of the first supporting rod is connected with the third frame in a transmission mode, and the second driving piece drives the lever piece to act on the third frame to rotate relative to the second frame.

Optionally, in the above multifunctional nursing bed, the supporting assembly further includes a second support member and a bracket, the second support member is mounted on the lever member, the bracket is fixedly connected to one side of the third frame close to the connecting frame, a limiting channel is arranged on the bracket, and the first support member is slidably connected in the limiting channel.

Optionally, in the above multifunctional nursing bed, the supporting component further includes a first connecting plate and a second connecting plate, one end of the first connecting plate is rotatably connected to the connecting frame, the other end of the first connecting plate is rotatably connected to one end of the second connecting plate, and one end of the second connecting plate far away from the first connecting plate is slidably and fixedly connected to the first support rod.

Optionally, in the above multifunctional nursing bed, the supporting assembly further includes two third supporting rods, and the two first connecting plates are fixedly connected to each other by the third supporting rods.

Optionally, in the above multifunctional nursing bed, the supporting component further includes a reinforcing plate, one end of the reinforcing plate is rotatably connected to the driving end of the second driving component, the reinforcing plate and the lever component are disposed on the driving end of the second driving component, and the other end of the reinforcing plate is fixedly connected to the first lever component.

Optionally, in the above multifunctional nursing bed, the supporting member further includes an auxiliary plate, one end of the auxiliary plate is rotatably connected to the first supporting rod, and the other end of the auxiliary plate is rotatably connected to the second supporting rod.

Optionally, in the above multifunctional nursing bed, the bed frame structure further includes a connecting frame, the connecting frame is detachably connected to the supporting frame, the connecting frame includes a first bracket, a second bracket and an adjusting frame rotatably disposed between the first bracket and the second bracket, the first bracket is connected to the supporting frame, the second bracket is rotatably connected to the fixing frame of the bed frame structure, and the fixing frame is detachably connected to the supporting frame;

the adjusting mechanism further comprises a third driving piece, the mounting end of the third driving piece is rotatably connected with the first support, the driving end of the third driving piece is rotatably connected with the adjusting frame, and the third driving piece drives the adjusting frame to adjust the distance between the first support and the second support.

Optionally, the fixing frame of the multifunctional nursing bed comprises a wheel frame, and the wheel frame is suitable for abutting against the roller member so as to limit and support the movement of the roller member.

Optionally, in the multifunctional nursing bed, the bed frame structure further comprises a supporting net, and the supporting net is mounted on the frame.

Optionally, in the above multifunctional nursing bed, the bed frame structure further includes a foot rest, the foot rest is fixedly connected to the fixing frame, and the foot rest and the supporting frame are spaced apart from each other when the supporting frame is in a reset state.

Optionally, in the above multifunctional nursing bed, the bed frame structure further includes a head plate, a tail plate and side plates fixedly connected to the fixing frame, and the side plates are disposed between the head plate and the tail plate.

Optionally, in the above multifunctional nursing bed, the first support is provided with at least one installation extension plate and an installation positioning plate, one end of the installation extension plate is fixedly connected with the first support, the other end of the installation extension plate is fixedly connected with the installation positioning plate, and the installation positioning plate is suitable for detachably connecting with a guardrail structure.

Optionally, the multifunctional nursing bed further includes a rotation driving mechanism, the rotation driving mechanism includes a fourth driving element and a rotation element, a mounting end of the fourth driving element is fixedly connected to the fixing frame, the fourth driving element is in transmission connection with the rotation element, one end of the rotation element is rotatably connected to the fixing frame, and one end of the rotation element is fixedly connected to the second support.

Optionally, in the above multifunctional nursing bed, the rotary driving structure further includes a moving member, the moving member is mounted at the driving end of the fourth driving member, the moving member is mounted with a tooth condition, and the tooth condition is engaged with and drives a gear member,

Optionally, in the above multifunctional nursing bed, the rotating driving structure further includes a guiding element, the guiding element is mounted on the fixing frame, and the guiding element is slidably connected to the moving element.

Optionally, in the above multifunctional nursing bed, the rotating driving structure further includes a roller member, the roller member is rotatably connected to a side of the second support far away from the first support, and the roller member is adapted to abut against a wheel carrier.

Optionally, in the above multifunctional nursing bed, the rotation driving structure further includes a third seat body, the third seat body is mounted on the fixed frame, and the third seat body is rotatably connected to the rotating member; and/or

The rotary driving structure further comprises a fourth seat body, the fourth seat body is installed on the second support, and the fourth seat body is fixedly connected with the second support.

Optionally, in the above multifunctional nursing bed, the first plate further includes a first shielding portion, the first limiting portion and the first shielding portion are disposed at an interval, when the limiting member is in the locked state, any one of the first shielding portions and any one of the corresponding second shielding portions overlap with each other, the first shielding portion is formed on the side surface of the guide channel where the first guide portion is located, and when the limiting member is in the unlocked state, the limiting member slides into the first guide portion and the second guide portion along the side wall of the first shielding portion and the side wall of the second shielding portion.

Optionally, in the above multifunctional nursing bed, the first blocking portion further includes a first transition surface, the first transition surface is disposed between the first blocking portion and the first limiting portion in the first direction, and the first transition surface is disposed in parallel with a side surface of the first guiding portion;

the second plate body further comprises a second transition surface, the second transition surface is arranged between the second shielding portion and the second limiting portion in the first direction, and the second transition surface is arranged in parallel with the side surface of the second guide portion;

when the limiting part enters a locking state from an unlocking state, and the first plate body and the second plate body continue to synchronously slide along a first direction under the driving of an external force, the limiting part also has a first transition state of synchronously sliding along a first transition surface and a second transition surface, and in the first transition state, the limiting part is positioned in a guide channel where a first guide part and a second guide part are positioned, the first limiting part and the second limiting part are superposed, and the first shielding part and the second shielding part are superposed;

the first plate body further comprises a second extending channel, the second extending channel is arranged at the end part of the first guide part in the second direction, and the second extending channel and the first guide part are arranged in the same direction;

the locating part is in second transition state and butt the second extends the passageway after the ascending tip of second direction, first plate body with when the second plate body continues to slide along the second direction under the drive of external force, the locating part has and drives the second plate body edge first guide part slides to butt the second extends the reset state of passageway on the tip of second direction under the reset state, first spacing portion and the coincidence of the spacing portion of second, first occlusion part and the coincidence of second occlusion part.

Optionally, in the multifunctional nursing bed, the first plate body has a first extending channel, the first extending channel is disposed at an end of the first guiding portion in the first direction, and the first extending channel is disposed in the same direction as the first guiding portion;

the second plate body is provided with a dislocation surface, the dislocation surface is arranged in the first direction of the second limiting part, the dislocation surface is formed on the side surface of the end part of the guide channel where the second guide part is positioned, and the first shielding parts and the dislocation surface are arranged in a staggered manner;

after the limiting part is in the locking state, when the first plate body and the second plate body are driven by external force to slide along a first direction, the limiting part is provided with a first dislocation state which is arranged on a dislocation surface in a sliding mode and is arranged on the side surface of a first shielding part in a sliding mode, the first shielding part and the second shielding part are partially overlapped, and the first limiting part and the second limiting part are partially overlapped in the first dislocation state;

after the limiting part is in a first dislocation state, when the first plate body and the second plate body are driven by external force to continuously slide along a first direction, the limiting part is provided with a second dislocation state which is abutted against the intersection of the dislocation surface and the guide channel of the second guide part and slides in the first extension channel, and in the second dislocation state, the first shielding part and the second limiting part are completely overlapped, and the second shielding part and the first limiting part are completely overlapped;

after the limiting part is in a second dislocation state, when the first plate body and the second plate body are driven by external force to synchronously slide along a second direction, the limiting part is also in a second transition state of sliding along a guide channel where the first guide part and the second guide part are located, and in the second transition state, the first transition surface and the second transition surface jointly form a side surface of the guide channel where the first guide part and the second guide part are located, the first limiting part and the second shielding part are overlapped, and the first shielding part and the second limiting part are overlapped;

the first direction is disposed opposite to the second direction.

Optionally, foretell multi-functional nursing bed, self-locking structure still include at least a set of regulation structure, it includes long waist groove and spacing arch to adjust the structure, long waist groove sets up on the second plate body, spacing arch sets up on first plate body, the extending direction of long waist groove and the extending direction parallel arrangement of arbitrary extension passageway, under reset state, first dislocation state and second dislocation state, spacing arch slides and sets up long waist inslot.

Optionally, in the multifunctional nursing bed, the long waist groove has a first position-limiting end along the first direction and a second position-limiting end along the second direction;

the limiting protrusion can abut against the first limiting end in the locking state, the first transition state and the unlocking state;

in a second transitional state, the limit projection can abut against the second limit end.

Optionally, in the above multifunctional nursing bed, the guardrail structure further comprises a handrail frame, an assembly frame and at least two protection rod members, the protection rod members are rotatably connected between the handrail frame and the assembly frame, and the assembly frame is detachably connected with the bedstead structure.

Optionally, in the multifunctional nursing bed, the armrest frame comprises an armrest part.

Optionally, in the above multifunctional nursing bed, the guardrail structure further comprises a mounting assembly, the mounting assembly comprises:

the rotating rod piece is rotationally connected with the rod protection piece;

the mounting plate is fixedly connected with one end, far away from the second plate body, of the first plate body, and the mounting plate is fixedly connected with the rotating rod piece;

the stop lever is fixedly connected to the mounting plate;

the elastic piece is sleeved on the rotating rod piece in a rotating mode and comprises a first elastic portion and a second elastic portion, the end portions of the first elastic portion and the second elastic portion are oppositely arranged on two sides of the mounting plate, and the second elastic portion extends between the mounting plate and the stop rod.

Optionally, in the above multifunctional nursing bed, in the locked state and the unlocked state, the elastic member has an elastic force acting to slide the limiting member from the first limiting portion into the first guiding portion, the first elastic portion abuts against and acts on an end surface of the mounting plate away from the stop lever, and the second elastic portion abuts against and acts on the stop lever;

under the first dislocation state, the second dislocation state, the first transition state, the second transition state and the reset state, the elastic part has a free state rotating on the rotating rod part, and the second elastic part is abutted against the gear rod.

Optionally, foretell multi-functional nursing bed, the guardrail structure still includes coupling assembling, coupling assembling includes first clamping piece, second clamping piece and adaptor, and first clamping piece sets up in the assembly jig both sides along the direction of height with the second clamping piece relatively to it is fixed to press from both sides the assembly jig, the first clamping piece of adaptor one end fixed connection, the adaptor other end runs through the second clamping piece with first support fixed connection.

The technical scheme provided by the invention has the following advantages:

1. the invention provides a multifunctional nursing bed, which comprises a bed frame structure, an adjusting mechanism and a guardrail structure, wherein the bed frame structure comprises a support frame, and the support frame is configured into three frames which are movably connected in series; the adjusting mechanism is arranged on the bedstead structure and is used for driving the frame to rotate; the supporting frame is provided with a folding state and a resetting state which enable the frame and the adjacent frame to rotate relatively under the driving of the adjusting mechanism; the guardrail structure is arranged on the bedstead structure and comprises a self-locking structure; the self-locking structure comprises a first plate body used for being connected with the armrest frame, a second plate body used for being connected with the assembly frame in a sliding mode and a limiting part, the first plate body comprises at least one first limiting part and a first guide part which are connected, and any one first limiting part is formed on the side face of the guide channel where the first guide part is located; the second plate body is connected with the first plate body in a sliding mode and comprises at least one second limiting part, a second guiding part and a second shielding part, the second limiting part and the second shielding part are arranged at intervals, any second limiting part and any second shielding part are formed on the side face of the guiding channel where the second guiding part is located, and the extending direction of the first guiding part is parallel to the extending direction of the second guiding part; the locating part is suitable for and assembly jig fixed connection, and the locating part is connected between first plate body and second plate body.

The multifunctional nursing bed with the structure is used for driving the frame to rotate through the adjusting mechanism, so that the frame in the supporting frame and the adjacent frame rotate relatively to fold and reset after folding, a human body rotates correspondingly with joints of the body along with the folding of the frame on the supporting frame, the supporting frame is provided with three frames which are movably connected in series, and the movable nodes among the three frames correspond to the joint nodes of the human body so as to adjust the body to be in a standing posture under a lying posture, so that the posture adjusting process of the human body is promoted, the body position is changed through the adjustment of the adjusting mechanism, the standing-up action of a nursed person is promoted, and the participation cost of nursing personnel is reduced; in the guardrail structure, when the first plate body and the second plate body are driven by external force to synchronously slide along a first direction, the limiting piece is locked in a locking state in the first limiting part and the second limiting part; after the limiting part is in a locked state, when the first plate body and the second plate body continue to be driven by external force to synchronously slide along the first direction, the limiting part has an unlocked state of sliding into the first guide part and the second guide part along the side wall of the second shielding part, the limiting part is switched between the locked state and the unlocked state, when the first connecting plate and the second connecting plate slide relatively, the side wall of the second shielding part is utilized to guide the limiting part positioned in the first limiting part and the second limiting part, so that the limiting part enters the guide channels of the first guide part and the second guide part, the limiting part in the self-locking structure is separated from the locked position in the first limiting part and the second limiting part, further the subsequent locked position of the limiting part can be reconfigured, the guardrail has different height positions, the adjustment of the guardrail structure is smooth, and the operation is convenient.

2. The invention provides a multifunctional nursing bed.A regulating mechanism comprises a first driving piece and a second driving piece, wherein the mounting end of the first driving piece is movably connected with a connecting frame, the driving end of the first driving piece is movably connected with any frame, the mounting end of the second driving piece is movably connected with the connecting frame, and the driving end of the second driving piece is movably connected with another frame; the support frame includes first frame, second frame and the third frame that rotates the connection mutually in proper order, and first frame rotates with the drive end of first driving piece to be connected, and the junction setting of first frame and second frame is kept away from to the drive end of first driving piece, and the third frame rotates with the drive end of second driving piece to be connected, and the junction setting of second frame and third frame is kept away from to the drive end of second driving piece.

The multifunctional nursing bed with the structure can enable the first frame to rotate upwards along the height direction to lift the back of a human body by driving the first frame to rotate relative to the second frame through the first driving piece, and enable the third frame to rotate downwards along the height direction to drive the buckling of legs of the human body by driving the third frame to rotate relative to the second frame through the second driving piece, wherein the rotating direction of the first frame relative to the second frame is consistent with the rotating direction of the third frame relative to the second frame, so that the support frame is formed into a folded state suitable for being matched with joints of the human body, the first frame and the second frame rotate to be matched with the rotation of joints of thighs of the human body, the second frame and the third frame rotate to be matched with the rotation of knees of the human body, the body-starting action of a nursed person can be promoted, and the aim of adjusting the posture of the human body is achieved.

3. The multifunctional nursing bed provided by the invention further comprises a rotary driving mechanism, wherein the rotary driving mechanism comprises a fourth driving part and a rotary part, the mounting end of the fourth driving part is fixedly connected with the fixed frame, the fourth driving part is in transmission connection with the rotary part, one end of the rotary part is in rotary connection with the fixed frame, and one end of the rotary part is fixedly connected with the second support.

The multi-functional nursing bed of this structure through rotary driving mechanism effect second support, makes the relative mount of monolithic link and support frame take place to rotate to make the support frame drive the human body and rotate to the side position of bed body structure, realize nursing bed and assist the function that turns to the human body, promote by nursing staff's the action of getting up, thereby practice thrift by nursing staff's self physical power, be convenient for by nursing staff's upper and lower bed body structure, can reduce nursing staff's participation cost.

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 embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a multifunctional nursing bed provided in an embodiment of the present invention;

FIG. 2 is a schematic view of the connection of the multi-functional nursing bed provided in the embodiment of the present invention;

FIG. 3 is a schematic structural view of a support frame in a multifunctional nursing bed provided in an embodiment of the present invention;

FIG. 4 is a schematic view illustrating the connection between the connection frame and the support frame of the multifunctional nursing bed provided in the embodiment of the present invention;

FIG. 5 is a schematic view of the connection between the connection frame and the adjustment mechanism in the multifunctional nursing bed provided in the embodiment of the present invention;

FIG. 6 is a side view of a multi-functional nursing bed according to an embodiment of the present invention;

FIG. 7 is a schematic view of the connection between the supporting frame and the foot stand of the multifunctional nursing bed according to the embodiment of the present invention;

FIG. 8 is a schematic view showing the structure of a rotary driving mechanism in the multi-functional nursing bed provided in the embodiment of the present invention;

FIG. 9 is an exploded view of the connection of the second support to the rotary driving mechanism in the multi-purpose nursing bed provided in the embodiment of the present invention;

FIG. 10 is a schematic view of the guardrail structure of the multi-purpose nursing bed provided in the embodiment of the present invention at the lowest position;

FIG. 11 is a schematic view of a guardrail structure of a multifunctional nursing bed provided in an embodiment of the present invention in a first shift position;

FIG. 12 is a schematic structural view of a guardrail structure in a multifunctional nursing bed provided in an embodiment of the invention in a second gear position;

FIG. 13 is a schematic view of a guardrail structure of a multifunctional nursing bed provided in an embodiment of the present invention in a third gear position;

FIG. 14 is a schematic structural view of a connecting assembly in a multifunctional nursing bed provided in an embodiment of the present invention;

FIG. 15 is a schematic structural view of a self-locking structure and a mounting assembly of the multifunctional nursing bed provided in the embodiment of the present invention;

FIG. 16 is a schematic view of the connection between the self-locking structure and the mounting assembly in the multifunctional nursing bed provided in the embodiment of the present invention;

fig. 17 is a schematic view illustrating the connection between the first plate and the mounting member in the multifunctional nursing bed according to the embodiment of the present invention;

fig. 18 is a schematic structural view of a first plate and a mounting assembly of the multifunctional nursing bed provided in the embodiment of the present invention;

fig. 19 is a schematic structural view of a self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention;

fig. 20 is a schematic structural view illustrating a first plate in a self-locking structure of a multifunctional nursing bed according to an embodiment of the present invention;

fig. 21 is a schematic structural view of a second plate in the self-locking structure of the multifunctional nursing bed provided in the embodiment of the present invention;

fig. 22 is a schematic structural view of the self-locking structure when the limiting member in the self-locking structure in the multifunctional nursing bed is in the final position of the reset state according to the embodiment of the present invention;

fig. 23 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is at a first shift position;

fig. 24 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is in an unlocked state;

fig. 25 is a schematic structural view of the self-locking structure when a limiting member of the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is in a first transition state;

fig. 26 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is in the second position;

fig. 27 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is in a third gear position;

fig. 28 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multi-functional nursing bed provided in the embodiment of the present invention is in a first dislocated state;

fig. 29 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multi-functional nursing bed provided in the embodiment of the present invention is in a second dislocated state;

fig. 30 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is in a second transition state;

fig. 31 is a schematic structural view of the self-locking structure when a limiting member in the self-locking structure in the multifunctional nursing bed provided in the embodiment of the present invention is in a reset state;

fig. 32 is a flowchart illustrating the operation state of the self-locking mechanism in the multifunctional nursing bed according to the embodiment of the present invention.

Description of the reference numerals:

11-a fixed mount; 111-wheel carrier; 12-a connecting frame; 121-a first bracket; 1211-mounting an extension plate; 1212-installing a positioning plate; 122-a second support; 123-an adjusting frame; 13-a support frame; 131-a first frame; 132-a second frame; 1321-a first carrier; 1322-a second carriage; 133-a third frame; 134-supporting mesh; 135-a first seat body; 136-a second seat; 14-a foot rest; 15-head plate; 16-a tail plate; 17-side plates;

2-an adjustment mechanism; 21-a first drive member; 22-a second drive member; 23-a lever member; 24-a third drive member; 251-a first strut member; 252-a second strut member; 253-a bracket; 254-first connecting plate; 255-a second connecting plate; 256-third strut member; 257 — a stiffener plate; 258-auxiliary plate;

3-a rotary drive mechanism; 31-a fourth drive; 32-a rotating member; 33-a roller member; 34-a moving member; 35-a rack member; 36-a gear member; 37-a guide; 38-a third seat; 39-a fourth seat;

4-a guardrail structure; 41-armrest frame; 411-armrest part; 412-first connecting rod; 42-a mounting bracket; 421-a second connecting rod; 43-a guard bar member;

51-a first plate body; 511-a first stopper; 5111-a first card slot; 5112-a second card slot; 5113-a third card slot; 512-a first guide; 513 — a first shielding portion; 514-a first extended channel; 515-a first transition surface; 516-a second extension channel; 517-limit bump;

52-a second plate body; 521-a second limiting part; 5211-a fourth card slot; 5212-a fifth card slot; 5213-sixth card slot; 522-a second guide; 523-second shade; 524-dislocation plane; 525-a second transition surface; 526-long waist groove; 5261-first limit end; 5262-a second stop end;

53-a stop; 54-a turn bar member; 55-mounting a plate; 56-gear lever; 57-an elastic member; 571-a first elastic part; 572-a second resilient portion;

61-a first clamping member; 62-a second clamping member; 63-an adaptor.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the multi-purpose nursing bed or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected", "connected" and "connecting" are to be construed broadly and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a multifunctional nursing bed, which comprises a bed frame structure, an adjusting mechanism and a rotation driving mechanism.

The bedstead structure holds the piece as the atress for the nursing mattress of installation peripheral hardware, and play the supporting role to the human body. As shown in fig. 1, the bed frame structure includes a fixed frame 11, a connecting frame 12 and a supporting frame 13, the connecting frame 12 and the supporting frame 13 are installed at the upper end of the fixed frame 11, the connecting frame 12 is disposed between the fixed frame 11 and the supporting frame 13, the connecting frame 12 and the fixed frame 11 are rotatably connected through a rotation driving mechanism 3, and the supporting frame 13 is detachably connected with the connecting frame 12. The fixed frame 11 is arranged on the ground and used for supporting the installation of the connecting frame 12 and the supporting frame 13; the connecting frame 12 is used for transmitting the power and the torque of the rotary driving mechanism 3 to drive the support frame 13 to rotate and forming a limiting support effect on the support frame 13; the support frame 13 is used for mounting a mattress to adapt to the use environment for carrying a human body.

As shown in fig. 4 and 5, the connecting frame 12 includes a first bracket 121, a second bracket 122 and an adjusting frame 123 rotatably disposed between the first bracket 121 and the second bracket 122, the first bracket 121 is movably connected to the fixed frame 11, and the second bracket 122 is connected to the supporting frame 13. The first bracket 121 and the second bracket 122 are combined frame structures, and are spaced apart on a height plane.

As shown in fig. 1 to 3, the supporting frame 13 includes a first frame 131, a second frame 132 and a third frame 133, which are rotatably connected in sequence, and the frames can rotate with each other to make the supporting frame 13 have different folding postures. The second frame 132 is fixedly connected with the first support 121, the support frame 13 is distributed with a support net 134, the support net 134 is made of elastic material, and the support net 134 can form a state of a multi-node support mattress, so that the loaded weight is distributed, and the comfort of the nursing bed is promoted.

As shown in fig. 1, the bed frame structure further comprises a foot rest 14, the foot rest 14 is detachably connected with the fixed frame 11, and the foot rest 14 is arranged at an interval with the supporting frame 13. The foot rest 14 is suitable for supporting the weight of feet of a human body, and the foot rest 14 and the support frame 13 are matched together to support the weight of the human body and objects such as a mattress, and it should be noted that the mattress is of a split structure, and the mattress on the foot rest 14 and the mattress on the support frame 13 are arranged at intervals.

As shown in fig. 1, the bed frame structure further comprises a head board 15, a tail board 16 and two side boards 17 which are connected with the fixed frame 11 so as to jointly enclose a supporting and protecting structure of the nursing bed at the bottom end. The head plate 15 and the tail plate 16 are arranged at two ends of the side plate 17 opposite to each other, and the foot rest 14 is fixedly connected with the tail plate 16.

The adjusting mechanism 2 plays a role in adjusting the posture and the height position of the support frame 13. As shown in fig. 1 and 2, the adjusting mechanism 2 is disposed between the connecting frame 12 and the supporting frame 13, and the adjusting mechanism 2 includes a first driving member 21, a second driving member 22, and a lever member 23. The mounting end of the first driving member 21 is rotatably disposed at an end of the first frame 131 away from the second frame 132, and the driving end of the first driving member 21 is rotatably connected to the connecting frame 12.

In this embodiment, in the specific operation process of the adjusting mechanism 2, when the human body is on the supporting frame 13, the back and the head of the human body are located at the upper end of the first frame 131, the thigh and the thigh of the human body are located at the upper end of the second frame 132, and the shank of the human body is located at the upper end of the third frame 133. The first frame 131 rotates relative to the second frame 132 under the driving action of the first driving member 21, the first frame 131 rotates to approach to the height direction, the back and the head of a human body lifted by the first frame 131 face upwards, the mounting end of the second driving member 22 is rotatably arranged on the second frame 132, and the lever member 23 is rotatably connected between the driving end of the second driving member 22 and the third frame 133. The second driving member 22 drives the lever member 23, and the lever member 23 drives the third frame 133 to rotate in the height direction, so that the third frame 133 can drive the leg of the human body to bend. The rotation direction of the first frame 131 relative to the second frame 132 is the same as the rotation direction of the third frame 133 relative to the second frame 132, so that the support frame 13 is folded to match the rotation of the hip joint and the knee joint of the human body, and the standing action of the person to be nursed can be promoted. The first frame 131 drives the back and the head of the human body to be lifted to the height direction, the third frame 133 drives the legs of the human body to bend and stretch, and when the nursed person needs to get off the bed, the support frame 13 can be adjusted to be in a folded state, so that the back lifting action and the leg bending and stretching action of the human body are facilitated, and the standing action of the nursed person is promoted; when the nursing person needs to go to the bed, the support frame 13 is driven by the adjusting mechanism 2 to reset from the folded state to the flat state, so that the nursing person can lie on the nursing bed.

As shown in fig. 3, the first frame 131 is fixedly connected with a first seat 135, and the first seat 135 is rotatably connected with the first driving member 21. The driving force of the first driving element 21 is transmitted to the first frame 131 through the first seat 135, so that the first frame 131 is rotated and folded relative to the second frame 132, thereby realizing the function of the first frame 131 of lifting the back of the human body. The second frame 132 is fixedly connected to a second seat 136, and the second seat 136 is rotatably connected to the second driving member 22. The driving force of the second driving element 22 is transmitted to the third frame 133 through the second seat 136, so that the third frame 133 rotates and folds relative to the second frame 132, thereby achieving the function of the third frame 133 flexing and extending the legs of the human body.

As shown in fig. 2, the second frame 132 includes two carriers hingedly connected to each other, and the second driving member 22 is rotatably connected to either of the carriers. The second frame 132 is configured as a first bearing frame 1321 and a second bearing frame 1322 which are hinged to each other, when the first frame 131 rotates under the driving action of the first driving element 21 and the third frame 133 rotates under the driving action of the second driving element 22, the first bearing frame 1321 and the second bearing frame 1322 can be matched with the movement of the first frame 131 and the third frame 133 to perform self-adaptive rotation, so that the second frame 132 forms an effective support bearing for the human body, which is beneficial to assisting the standing up action of the human body when the support frame 13 is gradually folded, and after the support frame 13 is adjusted to be in a folded state, a fixed included angle is formed between the first bearing frame 1321 and the second bearing frame 1322; after the supporting frame 13 is adjusted to be in a flat state, the first supporting frame 1321 and the second supporting frame 1322 are located on the same plane.

As shown in fig. 4 and fig. 5, the adjusting mechanism 2 further includes a third driving element 24, the mounting end of the third driving element 24 is rotatably connected to the first support 121, the driving end of the third driving element 24 is rotatably connected to the adjusting frame 123, the adjusting frame 123 is driven by the third driving element 24 to adjust the distance between the first support 121 and the second support 122, when the adjusting frame 123 adjusts the first support 121 and the second support 122 to be away from each other, the connecting frame 12 extends in the height direction, so that the first support 121 at the upper end drives the support frame 13 to lift upwards, and the third frame 133 is driven by the second driving element 22 to rotate towards the lower end of the horizontal plane, so as to achieve the bending of the legs of the human body, and provide a deformation space for the folded state of the support frame 13. Meanwhile, the height and the inclination angle of the supporting frame 13 on the second support 122 can be adjusted by matching the first driving member 21 and the second driving member 22, so as to achieve the purpose of assisting the human body to get up.

In this embodiment, the u-shaped structure has two ends rotatably connected to the second frame 122, two ends of the middle section of the u-shaped structure are rotatably connected to the first frame 121, the middle section of the u-shaped structure is driven by the second driving member 22, and when the middle section of the u-shaped structure is driven by the second driving member 22 to rotate in the height direction relative to the plane of the second frame 122, the middle section of the u-shaped structure drives the first frame 121 to move upward, and the first frame 121 and the second frame 122 gradually move away from each other, so that the connecting frame 12 is extended to increase the height of the body; when the second driving element 22 drives the middle section of the U-shaped structure to rotate relative to the plane of the second support 122, the middle section of the U-shaped structure drives the first support 121 to move downwards, and the first support 121 and the second support 122 gradually approach each other, so that the connecting frame 12 is folded to reduce the height of the human body.

As an alternative embodiment of this embodiment, the adjusting frame 123 is a U-shaped structure, the middle section of the U-shaped structure is rotatably connected to the first support 121, two end portions of the U-shaped structure are rotatably connected to the second support 122, and the middle section of the U-shaped structure is driven by the second driving member 22 to rotate and reset in the height direction relative to the plane of the second support 122, so as to complete the extending and folding state of the connecting frame 12, and further achieve the adjustment of the height of the human body.

As shown in fig. 4 and 5, the adjusting mechanism 2 further includes a supporting member including a first rod member 251, a second rod member 252, a bracket 253, a first connecting plate 254, a second connecting plate 255, and a third rod member 256. The second rod piece 252 is rotatably connected to one end of the lever piece 23 far away from the second driving piece 22, the second rod piece 252 is rotatably connected to the bracket 253, the bracket 253 is fixedly connected to the third frame 133, a limiting channel is formed in the bracket 253, in the embodiment, two bracket 253 are provided to commonly limit and support the second rod piece 252, the second rod piece 252 is slidably connected to the limiting channel, the sliding process of the second rod piece 252 is stable and smooth, and is favorable for promoting stable adjustment of the third frame 133, the first rod piece 251 is rotatably connected to the second support 122, two ends of the first connecting plate 254 are respectively rotatably connected to the second connecting plate 255 and the second support 122, the third rod piece 256 is rotatably connected to middle sections of the two first connecting plates 254, the connecting strength of the two first connecting plates 254 is enhanced through the third rod piece 256, the second connecting plate 255 is installed between the first connecting plate 254 and the first rod piece 251, the second connecting plate 255 is rotatably connected to the first connecting plate, the second connecting plate 255 is fixedly connected to the first rod piece 251, and the first rod piece 251 is rotatably connected to the lever piece 23. The lever member 23 has a first end rotatably connected to the second driving member 22 and a second end connected to the second strut member 252.

As shown in fig. 5, the carriage assembly further includes a stiffening plate 257, the stiffening plate 257 being pivotally connected between the drive end of the second drive member 22 and the first link member 251. Strengthen the joint strength between second driving piece 22 and first branch pole piece 251 through reinforcing plate 257, the rotation of the tip of second driving piece 22 is connected in adaptation lever piece 23, is favorable to improving the stability when lever piece 23 transmits.

As shown in fig. 5, the support assembly further includes an auxiliary plate 258, the auxiliary plate 258 being pivotally connected between the first leg member 251 and the second leg member 252. The auxiliary plate 258 supports and supports the second supporting rod 252, and the height of the second supporting rod 252 is adjusted by the transmission of the lever 23, so as to drive the bracket 253 and the third frame 133 to move, which is beneficial to enhancing the motion balance of the third frame 133.

In this embodiment, when the second driving member 22 acts on the first end of the lever member 23 to rotate upward and approach in the height direction, the second end of the lever member 23 correspondingly drives the second branch member 252 to rotate downward and approach in the height direction, so that the second branch member 252 drives the third frame 133 on the bracket 253 to rotate downward relative to the second frame 132, matching the bending action of the human knee joint; when the supporting frame 13 is reset, the first end of the lever member 23 rotates downward along the height direction under the action of the second driving member 22, so that the second end of the lever member 23 correspondingly drives the second supporting member 252 and the bracket 253, and the third frame 133 is restored to the horizontal position. The first arm 251, the second arm 252, the lever 23, the second connecting plate 255, the reinforcing plate 257 and the auxiliary plate 258 perform synchronous rotation movements with the rotation axes of the first connecting plate 254 and the second connecting plate 255 as rotation axes, the rotation between the first connecting plate 254 and the second bracket 122 is adapted to the height position of the rotation track of the third frame 133 relative to the second frame 132 under the driving action of the second driving member 22, and the overall movement is uniform and stable, and the transmission precision is high. When the third frame 133 needs to move downward from the horizontal position along the height direction, the second driving member 22 acts on the first end of the lever member 23 to rotate upward along the height direction, the second end of the lever member 23 correspondingly drives the second branch member 252 downward along the height direction, so that the second branch member 252 slides downward to act on the bracket 253, so that the bracket 253 drives the third frame 133 to move downward, meanwhile, the second connecting plate 255 and the first branch member 251 rotate downward along the height direction relative to the first connecting plate 254, and the first connecting plate 254 rotates downward along the height direction relative to the second support 122; when the third frame 133 needs to move upward from the horizontal position along the height direction, the second driving member 22 acts on the first end of the lever member 23 to rotate downward along the height direction, the second end of the lever member 23 drives the second rod member 252 upward along the height direction, so that the second rod member 252 slides upward to act on the bracket 253, so that the bracket 253 drives the third frame 133 to move upward, and meanwhile, the second connecting plate 255 and the first rod member 251 rotate upward along the height direction relative to the first connecting plate 254, and the first connecting plate 254 rotates upward along the height direction relative to the second bracket 122. Thereby bending the third frame 133 in a limited space on the connecting frame 12 and making the overall frame compact.

As shown in fig. 6, the rotation driving mechanism 3 performs an adjustment function of the rotation position of the support frame 13 on the horizontal plane. The rotary driving mechanism 3 is arranged at the upper end of the fixed frame 11, and the driving end of the rotary driving mechanism 3 is connected with the connecting frame 12. Specifically, the rotation driving mechanism 3 is disposed between the fixed frame 11 and the second support 122, and the rotation driving mechanism 3 drives the second support 122 to rotate on the horizontal plane, so as to drive the connection frame 12 and the support frame 13 to rotate integrally. The connecting frame 12 and the fixing frame 11 are arranged at a first included angle, and the first included angle is actually configured according to the action driving time of the rotation driving mechanism 3.

In this embodiment, as shown in fig. 8, the rotation driving mechanism 3 includes a fourth driving member 31 and a rotating member 32, a mounting end of the fourth driving member 31 is fixedly connected to the fixed frame 11, the rotating member 32 is mounted between the fourth driving member 31 and the second support 122, the fourth driving member 31 drives the rotating member 32 to drive the second support 122 to rotate relative to the fixed frame 11, so that the connecting frame 12 integrally rotates relative to the fixed frame 11, so that the connecting frame 12 bears and drives the human body to rotate to a side position of the bed body structure, thereby completing a function of the nursing bed to assist in turning the human body, wherein a rotation angle of the rotating member 32 corresponds to the first included angle.

As shown in fig. 7, the rotary drive mechanism 3 further includes a roller member 33, and the roller member 33 is rotatably mounted on the first bracket 121; the fixed frame 11 is provided with a wheel carrier 111, and the wheel carrier 111 is abutted against the roller member 33. When the fixing frame 11 and the connecting frame 12 rotate under the driving action of the rotation driving mechanism 3, the roller member 33 and the wheel frame 111 are in rolling fit to promote the rotation between the fixing frame 11 and the connecting frame 12, and the wheel frame 111 supports the connecting frame 12 and the human body supported by the upper end of the connecting frame 12, so that the weight of the connecting frame 12 supported by the rotation member 32 is reduced, and the driving stability of the rotation driving mechanism 3 is promoted.

In this embodiment, as shown in fig. 9, the rotary driving mechanism 3 further includes a moving member 34, a rack member 35, a guide member 37, a third seat member 38, a gear member 36, and a fourth seat member 39, the third seat member 38 is fixedly connected to the fixed frame 11, the guide member 37 is disposed on the third seat member 38, the gear member 36 is sleeved outside the rotating member 32, the rack member 35 is engaged with the gear member 36, and the fourth seat member 39 is fixedly connected between the rotating member 32 and the second bracket 122. The fourth driving member 31 can drive the moving member 34 to slide synchronously with the rack member 35 along a straight line, so that the rack member 35 engages with the transmission gear member 36 to drive the rotating member 32 to rotate, and the connecting frame 12 is driven to rotate by the rotating member 32, thereby completing the step of assisting the steering of the human body. The guide member 37 guides and limits the movement of the moving member 34 and the tooth condition 35, which is beneficial to enhancing the transmission precision and the motion stability of the rotary driving mechanism 3 and promoting the stable driving of the rotary driving mechanism 3 to the rotation of the connecting frame 12 and the supporting frame 13; the fourth base 39 fixedly connects the end of the rotating member 32 to the second support 122, so that the torque and the acting force transmitted to the rotating member 32 are distributed to the connecting frame 12, and the connecting frame 12 and the fixing frame 11 rotate relatively, so that the connecting frame 12 drives the supporting frame 13 and the human body to rotate to the side position of the bed structure.

In the present embodiment, as shown in fig. 6, eight roller members 33 are provided, and the eight roller members 33 are annularly arranged and distributed between the connecting frame 12 and the wheel frame 111. The acting force transmitted by the connecting frame 12 is uniformly supported by the roller parts 33 distributed in an annular shape, so that the rotating driving mechanism 3 is promoted to stably drive the connecting frame 12 to rotate, and the comfort degree of the nursing bed when the nursing bed rotates a human body is improved.

The position of the rotary motion of the connecting frame 12 and the supporting frame 13 is adjusted through the rotary driving mechanism 3, the height of the connecting frame 12 and the supporting frame 13 is adjusted by matching with the adjusting mechanism 2, so that the height of the human body on the supporting frame 13 is increased or reduced, thereby promoting the human body to move up and down the bed body, after the height of the adjusting mechanism 2 on the connecting frame 12 is adjusted, the synchronous rotation of the connecting frame 12 and the supporting frame 13 is performed, and the interference contact between the structures of the connecting frame 12 and the supporting frame 13 and the structures of the bed body and the structures of the bed mattress and the like at the upper end of the connecting frame 12 when the fixing frame 11 and the connecting frame 12 rotate relatively can be avoided, thereby promoting the rotary work of the nursing bed.

In this embodiment, the fourth driving member 31 is an electric driving cylinder, and the driving structure drives the rotating member 32 to rotate by the electric driving cylinder, so as to rotate the connecting frame 12 relative to the fixed frame 11, wherein the first included angle is set to be 0-90 °.

As an alternative embodiment of this embodiment, the fourth driving member 31 is a driving cylinder, and the driving structure drives the rotating member 32 to rotate by driving the driving function of the driving cylinder, so as to rotate the connecting frame 12 relative to the fixed frame 11, where the first included angle is set to 5n °, where n is any integer value of up to.

As shown in fig. 1, the guard rail structure 4 is assembled at the side position of the bedstead structure, and plays a role of limiting and protecting the human body. As shown in fig. 10, the guardrail structure 4 includes a handrail frame 41, an assembly frame 42, two or more guard bar members 43 and a self-locking structure, wherein the guard bar members 43 are rotatably connected between the handrail frame 41 and the assembly frame 42, and the self-locking structure is rotatably mounted on any one of the guard bar members 43.

As shown in fig. 10 to 14, the guardrail structure 4 further includes a connecting assembly, the connecting assembly includes a first clamping member 61, a second clamping member 62 and an adaptor 63, the first clamping member 61 and the second clamping member 62 are oppositely disposed on two sides of the mounting bracket 42 along the height direction to clamp and fix the mounting bracket 42, one end of the adaptor 63 is fixedly connected to the first clamping member 61, and the other end of the adaptor 63 penetrates through the second clamping member 62 and is fixedly connected to the first bracket 121, so as to fix the guardrail structure 4 and the first bracket 121.

As shown in fig. 2, the first bracket 121 is provided with a mounting extension plate 1211 and a mounting positioning plate 1212, one end of the mounting extension plate 1211 is fixed to a lateral end surface of the first bracket 121, the other end of the mounting extension plate 1211 is inclined downward and is connected to the mounting positioning plate 1212, the mounting positioning plate 1212 is provided with a mounting hole for connecting the adaptor 63, and the mounting positioning plate 1212 is fixedly connected to the adaptor 63 to fix the guard rail structure 4 and the bedstead structure.

As shown in fig. 10 to 13, the armrest frame 41 includes an armrest portion 411, and the armrest portion 411 is fitted to an outer wall surface of the armrest frame 41. The armrest 411 may be made of a material with low hardness, such as wood or silicone, so as to avoid the bad collision of the human body, and promote the comfort and protection of the human body.

As shown in fig. 10 to 13, the two guard bar members 43, the armrest frame 41 and the assembly frame 42 form a quadrilateral structure, and the quadrilateral structure can swing on a height plane around the assembly frame 42, so that the height position of the armrest frame 41 can be adjusted; the self-locking structure is matched with the guard bar 43 and the armrest frame 41 to form a triangular structure, so that a stable structure design is formed, and the armrest frame 41 is locked after the height position is adjusted.

As shown in fig. 10 to 13, a first connecting rod 412 is disposed on the armrest frame 41, a second connecting rod 421 is disposed on the assembly frame 42, the first connecting rod 412 and the second connecting rod 421 are disposed opposite to each other, two ends of the guard bar member 43 are rotatably connected to the first connecting rod 412 and the second connecting rod 421, the size of the first connecting rod 412 and the size of the second connecting rod 421 are adapted to the height of the armrest frame 41, and the guard bar member 43 is matched to perform the function of limiting and protecting the guard bar.

As shown in fig. 10 to 13 and 15 to 19, the self-locking structure includes a first plate 51, a second plate 52, and a limiting member 53, the first plate 51 is rotatably mounted on the rod-protecting member 43, the second plate 52 is slidably connected to the first plate 51, the limiting member 53 is slidably disposed on the first plate 51 and the second plate 52, and the limiting member 53 is fixedly connected to the mounting bracket 42.

As shown in fig. 19, the first plate 51 includes a first limiting portion 511, a first guiding portion 512, a first shielding portion 513, a first extending channel 514, a first transition surface 515, and a second extending channel 516, and the first limiting portion 511, the first shielding portion 513, and the first transition surface 515 are sequentially and alternately formed on a sidewall surface of the guiding channel where the first guiding portion 512 is located.

As shown in fig. 19, in the present embodiment, the first limiting portion 511 is a clamping groove, the first guiding portion 512 is a strip-shaped groove, a length direction of the strip-shaped groove is parallel to an extending direction of the first direction and the second direction, and the first direction is opposite to the second direction, as shown in the figures, the first extending channel 514 and the second extending channel 516 are disposed at two ends of the guiding channel where the first guiding portion 512 is located, the first extending channel 514 is disposed at a right end of the first guiding portion 512 along the first direction, and the second extending channel 516 is disposed at a left end of the first guiding portion 512 along the second direction. Specifically, in the embodiment, as shown in fig. 25 and fig. 30, the first direction is a left-to-right direction, and the second direction is a right-to-left direction.

As shown in fig. 19 and 20, in the present embodiment, the first blocking portion 513 is a guiding wall surface with a rounded transition, and the first blocking portion 513 and the first limiting portion 511 are disposed at an interval, and abut against the limiting member 53 through the guiding wall surface for limiting, so that the limiting member 53 slides to a predetermined position along the guiding wall surface.

As shown in fig. 19 and 20, the first transition surface 515 is a transition surface arranged parallel to the first direction, in the first direction, the first transition surface 515 is arranged between the first shielding portion 513 and the first limiting portion 511, and the first transition surface 515 and the first guiding portion 512 are arranged parallel to the extending direction of the guiding channel; the limiting member 53 is a cylindrical structure, in a geometric relationship, an extending direction of the first guiding portion 512 is parallel to the first direction, and a sum of a first projection length of the first blocking portion 513 on the first guiding portion 512 and a second projection length of the first extending channel 514 on the first guiding portion 512 is equal to a difference between a third projection length of the first transition surface 515 on the first guiding portion 512 and a radius of the cylindrical structure.

As shown in fig. 10 to 13 and 15 to 19, the second plate 52 includes a second limiting portion 521, a second guiding portion 522, a second shielding portion 523, a displacement surface 524, and a second transition surface 525, the second limiting portion 521 and the second shielding portion 523 are disposed at an interval, and the second limiting portion 521, the second shielding portion 523, and the second transition surface 525 are sequentially and alternately molded on the side surface of the guide channel where the second guiding portion 522 is located.

As shown in fig. 19 and 21, the second blocking portion 523 is a guide wall surface with a rounded transition, and the stopper 53 is abutted against the guide wall surface for stopping, so that the stopper 53 slides to a predetermined position along the guide wall surface.

As shown in fig. 19 and 21, the offset surface 524 is a connecting wall surface perpendicular to the extending direction of the guide channel of the second guiding portion 522, the offset surface 524 is disposed in the first direction of the second limiting portion 521, the offset surface 524 is disposed in an offset manner with the first shielding portion 513, and the offset surface 524 is used for matching the first shielding portion 513 to abut against and match the limiting member 53, so as to guide and limit the limiting member 53 to a predetermined position.

As shown in fig. 19 and 21, the second transition surface 525 is a transition surface arranged parallel to the first direction, in the first direction, the second transition surface 525 is arranged between the second shielding portion 523 and the second limiting portion 521, and the second transition surface 525 is arranged parallel to the side surface of the second guiding portion 522; in a geometrical relationship, the extending direction of the second guiding portion 522 is parallel to the first direction, and the sum of the fourth projection length and the second projection length of the second shielding portion 523 on the second guiding portion 522 is equal to the difference between the fifth projection length of the second transition surface 525 on the second guiding portion 522 and the radius of the cylindrical structure.

As shown in fig. 22 and 23, when the first plate 51 and the second plate 52 are driven by an external force to slide synchronously along the first direction, the limiting member 53 has a locking state locked in the first limiting portion 511 and the second limiting portion 521; in the height plane, the first plate body 51 and the second plate body 52 can be abutted against the limiting member 53 by pushing the guardrail downwards, and when the limiting member 53 is locked in the first limiting part 511 and the second limiting part 521, a relatively fixed state is formed between the self-locking structure and the guardrail structure 4, so that the armrest frame 41 has a certain height.

As shown in fig. 24, after the limiting member 53 is in the locked state, when the first plate 51 and the second plate 52 continue to be driven by an external force to synchronously slide along the first direction, the limiting member 53 has an unlocked state of sliding into the first guiding portion 512 and the second guiding portion 522 along the sidewall of the second shielding portion 523, so that the limiting member 53 in the self-locking structure is separated from the locked position in the first limiting portion 511 and the second limiting portion 521, and further, the subsequent locked position of the limiting member 53 can be reconfigured, so that the guardrail has different height positions. The first plate 51 and the second plate 52 can move in the height plane under the contact action force of the limiting member 53 in the opposite direction, and the integral self-locking structure swings on the height plane.

The number and size of the first limiting portion 511 and the second limiting portion 521 are adapted, and the actual number thereof is configured according to the use requirement. In this embodiment, as shown in fig. 20 and 21, for example, the first limiting portion 511 and the second limiting portion 521 are provided as three, the three first limiting portions 511 are respectively a first card slot 5111, a second card slot 5112 and a third card slot 5113, the three second limiting portions 521 are respectively a fourth card slot 5211, a fifth card slot 5212 and a sixth card slot 5213, the first card slot 5111, the second card slot 5112 and the third card slot 5113 are communicated with the guide channel of the first guide portion 512, and the second card slot 5112 is provided between the first card slot 5111 and the third card slot 5113; the fourth, fifth and sixth card slots 5211, 5212, 5213 are communicated with the guide channel of the second guide portion 522, the fifth card slot 5212 is distributed between the fourth and sixth card slots 5211, and when the first card slot 5111 and the fourth card slot 5211 are completely overlapped, the second card slot 5112 and the fifth card slot 5212 are completely overlapped, and the third card slot 5113 and the sixth card slot 5213 are completely overlapped; when the limiting member 53 is clamped in the first clamping groove 5111 and the fourth clamping groove 5211, it corresponds to the first gear of the guardrail structure 4; when the limiting member 53 is clamped in the second clamping groove 5112 and the fifth clamping groove 5212, it corresponds to the second gear of the guardrail structure 4; when the limiting member 53 is clamped in the third clamping groove 5113 and the sixth clamping groove 5213, it corresponds to the third gear of the guardrail structure 4. At this time, the stopper 53 has three shift positions of the locking position corresponding to three adjustable height positions of the guardrail structure 4.

As shown in fig. 10 to 13, 23, 26 and 27, when the limiting member 53 is in the locked state, any one of the first shielding portions 513 overlaps with any one of the corresponding second shielding portions 523, and the first shielding portion 513 is formed on the side surface of the guide channel where the first guide portion 512 is located; when the stopper 53 is in the unlocked state, as shown in fig. 24, the stopper 53 can slide into the first guide portion 512 and the second guide portion 522 along the side wall of the first shielding portion 513 and the side wall of the second shielding portion 523. Specifically, when the armrest frame 41 is driven by an external force, and the armrest frame 41 drives the first plate 51 and the second plate 52 to slide synchronously in the first direction, the first shielding portion 513 and the second shielding portion 523 contact the limiting member 53, so that the limiting member 53 can be separated from and exit from the first limiting portion 511 and the second limiting portion 521, and the side walls of the first shielding portion 513 and the second shielding portion 523 guide the sliding of the limiting member 53, so that the limiting member 53 is urged to enter the guide channel of the first guiding portion 512 and the second guiding portion 522, the guide walls of the first shielding portion 513 and the second shielding portion 523 guide the limiting member 53 in a matching manner, which is beneficial to the stable sliding of the limiting member 53 in an unlocking state, and the self-locking structure has the advantage of smooth unlocking.

As shown in fig. 19, 27, and 28, when the first plate 51 and the second plate 52 are driven to slide in the first direction by an external force after the stopper 53 is in the locked state, the stopper 53 has a first misalignment state in which it is slidably provided on the misalignment surface 524 and also slidably provided on the side surface of the first shielding portion 513, and in the first misalignment state, the first shielding portion 513 and the second shielding portion 523 are partially overlapped with each other, and the first stopper 511 and the second stopper 521 are partially overlapped with each other. Taking the second plate 52 having three second position-limiting portions 521 as an example, the offset surface 524 is connected to the third groove 5113, and in the first offset state, the position-limiting member 53 slides from the third groove 5113 to the offset surface 524 by the contact between the first shielding portion 513 and the second shielding portion 523.

As shown in fig. 19 and 29, when the first plate 51 and the second plate 52 are driven by the external force to slide in the first direction after the limiting member 53 is in the first misalignment state, the limiting member 53 has a second misalignment state in which it abuts on the intersection of the misalignment plane 524 and the guide channel of the second guide portion 522 and slides in the first extension channel 514. The limiting member 53 gradually slides into the guide channels of the first extending channel 514 and the second guiding portion 522 from the dislocation surface 524 and the first shielding portion 513, at the final position of the second dislocation state, the limiting member 53 abuts against the end portions of the first extending channel 514 and the second guiding portion 522 at the same side, the first shielding portion 513 completely overlaps with the second limiting portion 521, the second shielding portion 523 completely overlaps with the first limiting portion 511, and in this process, the second plate body 52 and the first plate body 51 slide relatively.

As shown in fig. 27 and 28, when the locking state of the limiting member 53 is the third gear position, the armrest frame 41 is driven leftward by an external force, the armrest frame 41 drives the first plate 51 and the second plate 52 to relatively slide in the first direction, the second shielding portion 523 contacts the limiting member 53, so that the limiting member 53 slides on the side wall surfaces of the offset surface 524 and the first shielding portion 513, and enters the first extending channel 514, which is in communication with the guiding channel of the first guiding portion 512 in the same direction, the limiting member 53 is guided into the first extending channel 514 by the guiding cooperation of the offset surface 524 and the first extending channel 514, and then the armrest frame 41 is continuously driven leftward by the external force, so as to drive the first plate 51 and the second plate 52 to relatively slide in the first direction, so that the limiting member 53 abuts against the end portions of the first extending channel 514 and the second guiding portion 522, so that the second plate 52 and the first plate 51 are crossed, the first shielding portion 513 and the second limiting portion 521 completely coincide with each other, the second shielding portion 523 and the first shielding portion 522 completely coincide with each other, thereby facilitating the height adjustment of the limiting member 53, and further facilitating the self-locking of the guiding structure, and facilitating the adjustment of the guiding structure.

As shown in fig. 25, when the limiting member 53 enters the locked state from the unlocked state, and the first plate body 51 and the second plate body 52 continue to slide synchronously along the first direction under the driving of the external force, the limiting member 53 further has a first transition state of sliding along the first transition surface 515 and the second transition surface 525, and in the first transition state, the limiting member 53 is located in the guide channel where the first guide portion 512 and the second guide portion 522 are located, at this time, the first limiting portion 511 and the second limiting portion 521 overlap, and the first shielding portion 513 and the second shielding portion 523 overlap, so that the limiting member 53 is reset in the sliding stroke.

As shown in fig. 30, when the limiting member 53 is in the second displacement state, and the first plate 51 and the second plate 52 are driven by an external force to slide synchronously along the second direction, the limiting member 53 further has a second transition state of sliding along the guide channel where the first guide portion 512 and the second guide portion 522 are located, in the second transition state, the first transition surface 515 and the second transition surface 525 together form a side surface of the guide channel where the first guide portion 512 and the second guide portion 522 are located, the first limiting portion 511 and the second blocking portion 523 overlap, and the first blocking portion 513 and the second limiting portion 521 overlap.

As shown in fig. 19, 30 and 31, when the first plate 51 and the second plate 52 are driven by an external force to continue sliding in the second direction after the limiting member 53 is in the second transition state and abuts against the end of the second extending passage 516 in the second direction, the limiting member 53 drives the second plate 52 to slide along the first guide portion 512 to a reset state abutting against the end of the second extending passage 516 in the second direction, and in a final position of the reset state, the first limiting portion 511 overlaps with the second limiting portion 521, and the first shielding portion 513 overlaps with the second shielding portion 523, and at this time, the armrest frame 41 of the guardrail structure 4 is at the lowest position.

The number of the adjusting structures is two or more, and in the present embodiment, as shown in fig. 19 to fig. 31, the self-locking structure has two groups of adjusting structures, and the two groups of adjusting structures are arranged and distributed on the first plate body 51 and the second plate body 52 at intervals; the adjusting structure comprises a long waist groove 526 and a limiting protrusion 517, the long waist groove 526 is arranged on the second plate body 52, the limiting protrusion 517 is arranged on the first plate body 51, the extending direction of the long waist groove 526 is parallel to the extending direction of any extending channel, and the limiting protrusion 517 is slidably arranged in the long waist groove 526 in the reset state, the first dislocation state and the second dislocation state. When the external force drives the armrest frame 41, the first plate 51 and the second plate 52 are connected through the adjusting structure, the limiting protrusion 517 is disposed on the first plate 51, and the long waist groove 526 is disposed on the second plate 52.

As shown in fig. 21, the long-waist groove 526 has a first stopper end 5261 in the first direction and a second stopper end 5262 in the second direction; in the locked state, the first transition state, and the unlocked state, the limiting boss 517 may abut against the first limiting end 5261; in the second transition state, the limiting protrusion 517 may abut against the second limiting end 5262. The limiting protrusion 517 and the long-waist groove 526 are in interference fit, and the locking force generated by the interference fit between the above structures enables the first plate 51 and the second plate 52 to synchronously move in the locking state, the unlocking state, the first transition state and the second transition state of the limiting member 53. In other cases, if the external force acts on the first plate 51 to drive the second plate 52 to act along the second direction, and the limiting protrusion 517 abuts against the first limiting end 5261, the first plate 51 slides relative to the second plate 52 along the first direction, and the limiting protrusion 517 slides from the first limiting end 5261 to the second limiting end 5262 of the long-waist groove 526; for example, when the external force acts on the first plate 51 to drive the second plate 52 to have a force greater than the locking force therebetween in the first direction and the limiting protrusion 517 abuts against the second limiting end 5262, the first plate 51 slides relative to the second plate 52 in the second direction, and the limiting protrusion 517 slides from the second limiting end 5262 to the first limiting end 5261 of the long waist groove 526.

As shown in fig. 21 to 32, the external force drives the first plate 51 and the second plate 52 to slide relatively and synchronously with the limiting member 53, so that the movement state of the limiting member 53 is switched among the reset state, the locked state, the unlocked state, the first transition state, the first dislocation state, the second dislocation state, and the second transition state, thereby realizing the process of adjusting the height of the guardrail structure 4.

As shown in fig. 15 to 18, the guard rail structure 4 further comprises a mounting assembly including a rotating rod member 54, a mounting plate 55 and an elastic member 57, the rotating rod member 54 being rotatably connected to the guard rail member 43; the mounting plate 55 is fixedly connected with one end of the first plate body 51 far away from the second plate body 52, and the mounting plate 55 is fixedly connected with the rotating rod 54; the stop lever 56 is connected to the mounting plate 55; the elastic member 57 is rotatably sleeved on the rotating rod 54, the elastic member 57 includes a first elastic part 571 and a second elastic part 572, ends of the first elastic part 571 and the second elastic part 572 are oppositely disposed on two sides of the mounting plate 55, and the second elastic part 572 is extended between the mounting plate 55 and the stopper rod 56. In the locked state and the unlocked state, the elastic member 57 has an elastic force that the action-limiting member 53 slides from the first limiting portion 511 into the first guide portion 512, the first elastic portion 571 abuts against and acts on the end surface of the mounting plate 55 away from the stopper rod 56, and the second elastic portion 572 abuts against and acts on the stopper rod 56; in the first and second misalignment states, the first and second transition states, and the reset state, the elastic member 57 is in a free state of being rotated on the rotation lever 54, and the second elastic portion 572 abuts against the stopper lever 56. When the elastic member 57 rotates on the rotating rod 54 under the action of gravity, the elastic member 57 has an upward elastic force along the height plane when the first elastic portion 571 abuts against the mounting plate 55 and the second elastic portion 572 abuts against the stopper 56, so as to promote the separation of the limiting member 53 from the first limiting portion 511 and the second limiting portion 521, and promote the unlocking of the self-locking structure.

The multi-functional nursing bed that this embodiment provided takes place relative rotation through 3 drive link 12 of rotary driving mechanism and mount 11 for link 12 drives the human body with support frame 13 and rotates to the side position of bed body structure, realizes nursing bed and carries out the purpose of supplementary steering to the human body, thereby practices thrift by nursing staff's self physical power, reduces nursing staff's human cost.

The multifunctional nursing bed provided by the embodiment drives the support frame 13 through the adjusting mechanism 2, so that the first frame 131 rotates relative to the second frame 132 and the third frame 133 rotates relative to the second frame 132, thereby folding the support frame 133, the first frame 131 drives the back and the head of the human body to be lifted in the height direction, the third frame 133 drives the legs of the human body to be bent and stretched, when the nursed person needs to get off the bed, the support frame 13 can be adjusted to be in a folded state, thereby being beneficial to the back lifting action and the leg bending and stretching action of the human body, promoting the standing action of the nursed person, and solving the problem that the nursing bed in the prior art is difficult to the standing action of the nursed person.

In the multifunctional nursing bed provided by this embodiment, when the first plate body 51 and the second plate body 52 slide relatively, the side wall of the second shielding portion 523 is used to guide the limiting member 53 located in the first limiting portion 511 and the second limiting portion 521, so that the limiting member 53 enters the guide channels of the first guide portion 512 and the second guide portion 522, and thus the limiting member 53 in the self-locking structure is separated from the locking position in the first limiting portion 511 and the second limiting portion 521, and further the subsequent locking position of the limiting member 53 can be reconfigured to adjust different height positions of the guardrail structure 4. The operator can directly carry out the switching of locking and unblock to self-locking structure through acting on handrail frame 41, and guardrail structure 4 adjusts smoothly, and the simple operation is adjusted when the high position of readjustment handrail frame 41 conveniently.

The nursing bed provided by the embodiment is used as follows:

when the nursed person needs to leave the bed body to be lifted, firstly, the first support 121 and the second support 122 are separated from each other by the aid of the adjusting frame 123 acted by the second driving piece 22, so that the support frame 13 is lifted upwards by the first support 121, the connecting frame 12 extends in the height direction, and the height of the human body is lifted upwards by the support frame 13; the first frame 131 is driven to rotate by the first driving part 21, so that the first frame 131 gradually acts on the back of a human body in the height direction to realize the back lifting function of the nursing bed, the second driving part 22 drives the lever part 23, the lever part 23 drives the bracket 253 to enable the third frame 133 to rotate, the third frame 133 gradually acts on the leg of the human body in the height direction to move downwards to realize the leg bending function of the nursing bed, and the whole support frame 13 gradually forms a folded state; then, the second support 122 is driven to turn by the rotation driving mechanism 3, specifically, the fourth driving part 31 acts on the moving part 34, so that the moving part 34 drives the rack part 35 to move, the rack part 35 is meshed with the transmission gear part 36, the gear part 36 drives the rotating part 32 to rotate, the rotating part 32 drives the connecting frame 12 to integrally rotate, so that the connecting frame 12 drives the support frame 13 to rotate the human body to the side position of the bed body structure, so as to assist in turning the human body, and then the first driving part 21 drives the first frame 131 to continuously lift the back of the human body upwards, so that the whole support frame 13 is inclined towards the side position of the bed frame structure, so that the human body gets up with gravity and leaves the bed body structure, thereby assisting in the standing process of the human body, and meanwhile, the guardrail structure 4 is inclined downwards along with the first support 121, so that the hand and the elbow of the human body can be guided to the side position of the bed body structure along with the armrest frame 41; after the nursing person leaves the support frame 13, drive the link 12 through the fourth driving piece 31 and rotate and reset, make link 12 and support frame 13 resume at the initial position of bed body structure, adjustment mechanism 2 acts on link 12 and draws in foldingly, make support frame 13 descend, specifically act on adjustment frame 123 through second driving piece 22, make first support 121 and second support 122 be close to mutually, thereby make link 12 drive support frame 13 and descend, rethread first driving piece 21 drives first frame 131, make first frame 131 rotate and reset, drive third frame 133 through second driving piece 22, make third frame 133 rotate and reset, thereby make support frame 13 wholly reset and tile. So far, the use process of the nursing bed is completed.

Taking the limiting member 53 from the reset state to the second dislocation state along the first direction, and then from the second dislocation state to the reset state along the second direction as an example, the usage process of the guardrail structure 4 in the nursing bed is as follows:

s1: as shown in fig. 10 and 22, the limiting member 53 is at the final position of the reset state, i.e. the lowest position of the guardrail structure 4, the limiting member 53 abuts against the end portion of the second extending channel 516 on the same side as the guiding channel of the second guiding portion 522, at this time, the limiting protrusion 517 is at the first limiting end 5261 of the long waist groove 526, and the armrest frame of the guardrail is at the lowest position;

s2: an operator lifts the handrail frame 541 upwards to enable the handrail frame 541 to drive the protection rod piece 543, the protection rod piece 543 swings upwards around a connecting node of the protection rod piece 543 and the support frame 542 on a height plane, in the swing stroke of the protection rod piece 43, the protection rod piece 43 pulls the mounting plate 55, the first plate body 51 and the second plate body 52 to move synchronously along the first direction, and the limiting piece 53 slides out along the second extending channel 516 and enters the guide channel of the second guide part 522;

s3: when the operator executes the step S2 and adjusts the gear to a required height, for example, the gear is first adjusted to the first gear, and then adjusted to the second gear and the third gear in this step; of course, the gear can be adjusted according to actual requirements, can be directly adjusted to a second gear or a third gear, and can also be directly adjusted to the third gear when the first gear is not suitable for adjustment. Specifically, the method comprises the following steps:

s31: the step of sliding the limiting member 53 into the first gear is as follows:

when the limiting member 53 slides along the guide channel defined by the first guide portion 512 and the second guide portion 522, and when the limiting member 53 faces the first limiting portion 511 and the second limiting portion 521 of the first gear, and under the action of gravity of the first plate body 51 and the second plate body 52, the limiting member 53 slides into the first limiting portion 511 and the second limiting portion 521 of the first gear along the side wall surfaces of the first limiting portion 511 and the second limiting portion 521 of the first gear, as shown in fig. 11 and 23, the limiting member 53 is in a locking state limited in the first limiting portion 511 and the second limiting portion 521 of the first gear, and the armrest frame 41 corresponds to the height position of the first gear; it should be noted that, at this time, the first elastic portion 541 is in contact with the mounting plate 52, the second elastic portion 542 is in contact with the blocking rod 56, and the elastic member 57 has an elastic force acting on the upward movement tendency of the mounting plate 52.

S32, sliding the limiting piece out of the first gear comprises the following steps:

when the operator continues to lift the armrest frame 41 upwards, the armrest frame 41 will drive the first plate 51 and the second plate 52 to continue to synchronously slide along the first direction, as shown in fig. 24, at this time, the limiting member 53 abuts against the outer wall surfaces where the first shielding portion 513 and the second shielding portion 523 are located, and slides along the outer wall surfaces of the first shielding portion 513 and the second shielding portion 523 toward the directions of the first guiding portion 512 and the second guiding portion 522 until the limiting member 53 completely exits from the first limiting portion 511 and the second limiting portion 521 of the first shift position, and enters the guiding channels of the first guiding portion 512 and the second guiding portion 522, and in this process, the limiting member 53 is switched from the locked state to the unlocked state;

s33: the step of sliding the limiting piece into the second gear is as follows:

s331: when the operator continues to lift the armrest frame 41 upwards, the armrest frame 41 will drive the first plate 51 and the second plate 52 to continue to slide synchronously along the first direction; as shown in fig. 25, the limiting member 53 slides in the guide channel enclosed by the first transition surface 515 and the second transition surface 525, and the first guide portion 512 and the second guide portion 522, and the limiting member 53 is in the first transition state;

s332: when the limiting member is over against the first limiting portion 511 and the second limiting portion of the second gear, and under the action of gravity of the first plate body 51 and the second plate body, the limiting member 53 slides into the first limiting portion 511 and the second limiting portion 521 of the second gear along the side wall surface positions of the first limiting portion 511 and the second limiting portion of the second gear, as shown in fig. 26, the limiting member 53 is in a locking state of being limited in the first limiting portion 511 and the second limiting portion 521 of the second gear, and the armrest frame 41 corresponds to the height position of the second gear;

s34, the step of sliding the limiting piece out of the second gear is as follows:

an operator continues to lift the armrest frame 41 upwards, the armrest frame 41 continues to drive the first plate body 51 and the second plate body 52 to slide synchronously, at this time, the limiting member 53 abuts against the outer wall surfaces where the first shielding portion 513 and the second shielding portion 523 of the second gear are located, and slides along the outer walls of the first shielding portion 513 and the second shielding portion 523 of the second gear in the direction of the first guide portion and the second guide portion until the limiting member 53 completely exits from the first limiting portion 511 and the second limiting portion 521 of the second gear and enters the guide channels of the first guide portion 512 and the second guide portion 522, and in this process, the limiting member 53 is switched from the locking state of the second gear to the unlocking state;

s35: the step of sliding the limiting piece into the third gear is as follows:

s351: when the operator continues to lift the handrail frame 41 upwards, the handrail frame 41 will drive the first plate 51 and the second plate 52 to continue to slide synchronously along the first direction; the limiting member 53 slides in a guide channel enclosed by the first transition surface 515 and the second transition surface 525, and the first guide portion 512 and the second guide portion 522, and the limiting member 53 is in a first transition state;

s352: when the limiting member 53 is over against the first limiting portion 511 and the second limiting portion 521 of the third gear, under the action of gravity of the first plate 51 and the second plate, the limiting member 53 slides into the first limiting portion 511 and the second limiting portion 521 of the third gear along the side wall surface positions of the first limiting portion 511 and the second limiting portion 521 of the third gear, as shown in fig. 27, the limiting member 53 is in a locking state limited in the first limiting portion 511 and the second limiting portion 521 of the third gear; it should be noted that when the limiting member is at the third gear, the armrest frame 41 is at the highest position;

s4: an operator continues to pull the armrest frame 41 to the left, the armrest frame 41 will drive the first plate 51 and the second plate 52 to slide relatively, specifically, the limiting member 53 is first located in the first limiting portion and the second limiting portion of the third gear, and then slides along the first shielding portion 513 of the third gear and the wall surface of the shifting surface 24, the limiting member 53 is switched from the locking state of the third gear to the first shifting state, as shown in fig. 28, at this time, the first shielding portion 513 and the second limiting portion are partially overlapped, the limiting member 53 gradually disengages from the third first limiting portion 511 and the second limiting portion 521, since the planes of the first shielding portion 513 and the shifting surface 24 of the third gear are not overlapped and have a certain included angle, specifically, in this process, the limiting member 53 slides into the first guide channel 512 in the smooth transition direction with respect to the first plate 51, and the limiting member 53 slides into the second guide channel 522 in the vertical direction with respect to the second plate 52;

when the operator continues to pull the armrest frame 41 leftward, the armrest frame 41 will drive the first plate 51 and the second plate 52 to slide relatively, and the limiting member 53 continues to slide along the guide channels of the first guide portion 512 and the second guide portion 522 until the limiting member 53 slides to the end portion of the first extending channel 514 on the same side as the second guide portion 522, for example, as shown in fig. 29, the limiting member 53 slides to the right end of the first extending channel 514, and at this time, the first shielding portion 513 and the second limiting portion 521 completely coincide with each other; in this process, the limiting member 53 is switched from the first dislocation state to the second dislocation state; in the process that the limiting member 53 is switched from the locking state to the first misalignment state and the second misalignment state, the limiting protrusion 517 slides from the first limiting end 5261 to the second limiting end 5262;

s5: when the operator wants to lower the height of the armrest frame 41 and return to the lowest position, the following steps are required:

s51: the operator needs to push the handrail frame 41 downwards from the right to the back, and the handrail frame 41 will drive the first plate body 51 and the second plate body 52 to synchronously slide along the second direction; at this time, the first shielding portion 513 completely overlaps with the second limiting portion 521, and the second shielding portion 523 completely overlaps with the first limiting portion 511, so that the first transition surface 515, the second transition surface 525, the first guiding portion 512 and the second guiding portion 522 enclose a strip-shaped channel, as shown in fig. 30, the limiting member 53 slides from right to left in the strip-shaped channel, and at this time, the limiting member 53 is in a second transition state; when the limiting member 53 is at the final position of the second transition state, the limiting member 53 abuts against the left end of the second guiding portion 522, and the limiting protrusion 517 abuts against the second limiting end 5262.

S52: the operator continues to push the armrest frame 41 downwards, the armrest frame 41 will drive the first plate body 51 and the second plate body 52 to slide relatively, as shown in fig. 31, in the second direction, the limiting member 53 slides in the second extending channel 516 and abuts against the left end of the second guiding portion 522 until sliding against the end portions of the second extending channel 516 and the guiding channel of the second guiding portion 522 on the same side, in this process, the limiting member 53 is switched from the second transition state to the reset state, and the limiting protrusion 517 slides from the second limiting end 5262 to the first limiting end 5261; at this time, the handrail 14 of the guard rail is restored to the lowermost position. This completes the adjustment of the guard rail structure 4.

According to the nursing bed provided by the embodiment, the limiting part 53 can slide to the final position, the first gear, the second gear and the third gear of the reset state, so that the guardrail has three gears for height adjustment, and the guardrail positions with four different heights further meet the requirements of users. When the nursing bed is in a flat laying position and a moving position, the guardrail structure can be adjusted at will, so that the height of the handrail frame 41 is adapted to the use occasion of the nursing bed.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A multi-functional nursing bed, characterized by, includes:

a bed frame structure comprising support frames (13), the support frames (13) being configured as at least three frames movably connected in series;

an adjusting mechanism (2) mounted on the bed frame structure, the adjusting mechanism (2) being used for driving the frame to rotate; the supporting frame (13) is driven by the adjusting mechanism (2) to enable the frame and the adjacent frame to rotate relatively to form a folded state and a reset state;

the guardrail structure (4) is installed on the bedstead structure, the guardrail structure (4) further comprises a handrail frame (41), an assembling frame (42) and at least two guard bar pieces (43), the guard bar pieces (43) are rotatably connected between the handrail frame (41) and the assembling frame (42), and the assembling frame (42) is detachably connected with the bedstead structure; wherein, guardrail structure (4) still includes auto-lock structure, auto-lock structure includes:

the first plate body (51) is used for being connected with an armrest frame (41), the first plate body (51) comprises at least one first limiting part (511) and a first guide part (512) which are connected, and any one first limiting part (511) is formed on the side surface of a guide channel where the first guide part (512) is located;

the second plate body (52) is used for being connected with an assembly frame (42) in a sliding mode, the second plate body (52) is connected with the first plate body (51) in a sliding mode, the second plate body (52) comprises at least one second limiting portion (521), a second guiding portion (522) and a second shielding portion (523), the second limiting portion (521) and the second shielding portion (523) are arranged at intervals, any one of the second limiting portion (521) and any one of the second shielding portion (523) is formed on the side face of a guide channel where the second guiding portion (522) is located, and the extending direction of the first guiding portion (512) is parallel to the extending direction of the second guiding portion (522);

the limiting piece (53) is suitable for being fixedly connected with an assembly frame (42), and the limiting piece (53) is connected between the first plate body (51) and the second plate body (52); when the first plate body (51) and the second plate body (52) are driven by external force to synchronously slide along a first direction, the limiting piece (53) has a locking state locked in the first limiting part (511) and the second limiting part (521); after the limiting part (53) is in the locked state, when the first plate body (51) and the second plate body (52) continue to be driven by an external force to synchronously slide along the first direction, the limiting part (53) has an unlocked state of sliding into the first guide part (512) and the second guide part (522) along the side wall of the second shielding part (523), and the limiting part (53) is switched between the locked state and the unlocked state.

2. The multifunctional nursing bed of claim 1, wherein the adjusting mechanism (2) comprises a first driving member (21) and a second driving member (22), the mounting end of the first driving member (21) is movably connected with the connecting frame (12), the driving end of the first driving member (21) is movably connected with any one of the frames, the mounting end of the second driving member (22) is movably connected with the connecting frame (12), and the driving end of the second driving member (22) is movably connected with the other frame.

3. The multifunctional nursing bed of claim 2, wherein the support frame (13) comprises a first frame (131), a second frame (132) and a third frame (133) which are rotatably connected in sequence, the first frame (131) is rotatably connected with the driving end of the first driving member (21), the driving end of the first driving member (21) is arranged far away from the connection position of the first frame (131) and the second frame (132), the third frame (133) is rotatably connected with the driving end of the second driving member (22), and the driving end of the second driving member (22) is arranged far away from the connection position of the second frame (132) and the third frame (133);

the second frame (132) includes at least two rotatably coupled carriers, and the second driver (22) is rotatably coupled to either of the carriers.

4. The multi-functional nursing bed of claim 3, wherein said adjusting mechanism (2) further comprises a lever member (23) and a holding member, said lever member (23) having a first end and a second end, said first end being rotatably connected to said second driving member (22);

the supporting component comprises a first supporting rod piece (251), the first supporting rod piece (251) is connected with the connecting frame (12) in a rotating mode, the second end of the first supporting rod piece is connected with the third frame (133) in a transmission mode, and the second driving piece (22) drives the lever piece (23) to enable the third frame (133) to rotate relative to the second frame (132).

5. The multi-functional nursing bed of claim 4, wherein the supporting assembly further comprises a second supporting rod member (252) and a bracket (253), the second supporting rod member (252) is mounted on the lever member (23), the bracket (253) is fixedly connected to one side of the third frame (133) close to the connecting frame (12), a limiting channel is provided on the bracket (253), and the first supporting rod member (251) is slidably connected in the limiting channel.

6. The multi-functional nursing bed of claim 5, wherein the supporting member further comprises a first connecting plate (254) and a second connecting plate (255), one end of the first connecting plate (254) is pivotally connected to the connecting frame (12), the other end of the first connecting plate (254) is pivotally connected to one end of the second connecting plate (255), and the end of the second connecting plate (255) away from the first connecting plate (254) is fixedly connected to the first strut member (251).

7. The multifunctional nursing bed of any of claims 1-6, wherein said bed frame structure further comprises a connecting frame (12), said connecting frame (12) is detachably connected to said supporting frame (13), said connecting frame (12) comprises a first bracket (121), a second bracket (122) and an adjusting frame (123) rotatably disposed between said first bracket (121) and said second bracket (122), said first bracket (121) is connected to said supporting frame (13), said second bracket (122) is rotatably connected to said fixing frame (11) of said bed frame structure, said fixing frame (11) is detachably connected to said supporting frame (13);

the adjusting mechanism (2) further comprises a third driving piece (24), the mounting end of the third driving piece (24) is rotatably connected with the first support (121), the driving end of the third driving piece (24) is rotatably connected with the adjusting frame (123), and the third driving piece (24) drives the adjusting frame (123) to adjust the distance between the first support (121) and the second support (122).

8. The multifunctional nursing bed according to claim 7, characterized in that the fixing frame (11) comprises a wheel frame (111), the wheel frame (111) is adapted to abut against the roller member (33) to limit the movement of the supporting roller member (33).

9. The multifunctional nursing bed as claimed in claim 7, wherein the first frame (121) is provided with at least one mounting extension plate (1211) and a mounting positioning plate (1212), one end of the mounting extension plate (1211) is fixedly connected to the first frame (121), the other end of the mounting extension plate (1211) is fixedly connected to the mounting positioning plate (1212), and the mounting positioning plate (1212) is adapted to be connected to the guardrail structure (4).

10. The multifunctional nursing bed of claim 7 further comprising a rotary driving mechanism (3), wherein the rotary driving mechanism comprises a fourth driving member (31) and a rotary member (32), the mounting end of the fourth driving member (31) is fixedly connected with the fixed frame (11), the fourth driving member (31) is in transmission connection with the rotary member (32), one end of the rotary member (32) is rotatably connected with the fixed frame (11), and one end of the rotary member (32) is fixedly connected with the second bracket (122).

11. The multifunctional nursing bed as claimed in any of claims 1-6, wherein the first plate (51) further comprises a first shielding portion (513), the first limiting portion (511) and the first shielding portion (513) are disposed at an interval, when the limiting member (53) is in the locked state, any one of the first shielding portions (513) and any one of the corresponding second shielding portions (523) are overlapped with each other, the first shielding portion (513) is formed on the side surface of the guide channel where the first guiding portion (512) is located, and when the limiting member (53) is in the unlocked state, the limiting member (53) slides into the first guiding portion (512) and the second guiding portion (522) along the side wall of the first shielding portion (513) and the side wall of the second shielding portion (523).

12. The multifunctional nursing bed of claim 11, wherein the first shielding part (513) further comprises a first transition surface (515), the first transition surface (515) is disposed between the first shielding part (513) and the first limiting part (511) in the first direction, and the first transition surface (515) is disposed in parallel with the side surface of the first guiding part (512);

the second plate body (52) further comprises a second transition surface (525), in the first direction, the second transition surface (525) is arranged between the second shielding part (523) and the second limiting part (521), and the side surfaces of the second transition surface (525) and the second guide part (522) are arranged in parallel;

when the limiting piece (53) enters a locked state from an unlocked state, and the first plate body (51) and the second plate body (52) continue to synchronously slide along a first direction under the driving of an external force, the limiting piece (53) also has a first transition state of synchronously sliding along a first transition surface (515) and a second transition surface (525), in the first transition state, the limiting piece (53) is positioned in a guide channel where a first guide part (512) and a second guide part (522) are positioned, the first limiting part (511) and the second limiting part (521) are overlapped, and the first shielding part (513) and the second shielding part (523) are overlapped;

the first plate body (51) further comprises a second extension channel (516), the second extension channel (516) is arranged at the end part of the first guide part (512) in the second direction, and the second extension channel (516) is arranged in the same direction with the first guide part (512);

after the limiting piece (53) is in the second transition state and abuts against the end part of the second extending channel (516) in the second direction, when the first plate body (51) and the second plate body (52) are driven by an external force to continue to slide along the second direction, the limiting piece (53) drives the second plate body (52) to slide along the first guide part (512) to abut against the reset state of the second extending channel (516) in the end part of the second direction, in the reset state, the first limiting part (511) and the second limiting part (521) are overlapped, and the first shielding part (513) and the second shielding part (523) are overlapped.

13. The multi-functional nursing bed of claim 12, wherein the first plate body (51) has a first extension channel (514), the first extension channel (514) is disposed at the end of the first guide portion (512) in the first direction, the first extension channel (514) is disposed in the same direction as the first guide portion (512);

the second plate body (52) is provided with a dislocation surface (524), the dislocation surface (524) is arranged in the first direction of the second limiting part (521), the dislocation surface (524) is formed on the side surface of the end part of the guide channel where the second guide part (522) is located, and the first shielding parts (513) and the dislocation surface (524) are arranged in a staggered mode;

after the limiting piece (53) is in the locked state, when the first plate body (51) and the second plate body (52) are driven by an external force to slide along a first direction, the limiting piece (53) has a first dislocation state which is arranged on a dislocation surface (524) in a sliding mode and is arranged on the side surface of a first shielding part (513) in a sliding mode, in the first dislocation state, the first shielding part (513) and the second shielding part (523) are partially overlapped, and the first limiting part (511) and the second limiting part (521) are partially overlapped;

after the limiting piece (53) is in a first dislocation state, when the first plate body (51) and the second plate body (52) are driven by an external force to continue to slide along a first direction, the limiting piece (53) has a second dislocation state which is abutted to the intersection of a dislocation surface (524) and a guide channel of a second guide part (522) and slides in a first extension channel (514), in the second dislocation state, the first shielding part (513) is completely overlapped with the second limiting part (521), and the second shielding part (523) is completely overlapped with the first limiting part (511);

after the limiting piece (53) is in the second dislocation state, when the first plate body (51) and the second plate body (52) are driven by an external force to synchronously slide along the second direction, the limiting piece (53) also has a second transition state of sliding along the guide channels where the first guide part (512) and the second guide part (522) are located, in the second transition state, the first transition surface (515) and the second transition surface (525) jointly form the side surfaces of the guide channels where the first guide part (512) and the second guide part (522) are located, the first limiting part (511) and the second shielding part (523) are overlapped, and the first shielding part (513) and the second limiting part (521) are overlapped;

the first direction is opposite to the second direction.

14. The multifunctional care bed as claimed in claim 11, characterized in that the railing structure (4) further comprises a mounting assembly comprising:

a rotating rod piece (54) which is rotatably connected with the rod protection piece (43);

the mounting plate (55) is fixedly connected with one end, far away from the second plate body (52), of the first plate body (51), and the mounting plate (55) is fixedly connected with the rotating rod piece (54);

a stop lever (56) fixedly connected to the mounting plate (55);

and the elastic piece (57) is rotatably sleeved on the rotating rod piece (54), the elastic piece (57) comprises a first elastic part (571) and a second elastic part, the end parts of the first elastic part (571) and the second elastic part are oppositely arranged on two sides of the mounting plate (55), and the second elastic part is arranged between the mounting plate (55) and the stop rod (56) in an extending manner.