CN211750619U - A buttockss board mechanism for nursing bed - Google Patents

Abstract

The utility model discloses a buttockss board mechanism for nursing bed, including two buttock boards (1), two it is articulated between buttock board (1), buttock board (1) center is equipped with defecation hole (1.1), buttock board (1) below is equipped with chassis (2), be equipped with layer board (3) in chassis (2), drive layer board (3) by chassis (2) in behind the earlier parallel translation drive assembly (4) of vertical migration to defecation hole (1.1) department, drive assembly (4) include driving piece (4.1), translation board (4.2), lifter plate (4.3), cut fork elevation structure (4.4), fastener (4.5), be equipped with in chassis (2) and be used for restricting fastener (4.5) parallel translation's retainer (2.1). The utility model provides a can open or close defecation hole automatically, and can follow the nursing bed and overturn and can not produce vacancy, convenient to use, the ingenious buttockss board mechanism that is used for nursing bed of structure.

Description

A buttockss board mechanism for nursing bed

Technical Field

The invention relates to the technical field of nursing beds, in particular to a hip plate mechanism for a nursing bed.

Background

For patients who have poor self-care ability or no self-care ability and the like and need to lie on bed for a long time, the lying posture of the patient generally needs to be frequently adjusted in the long-term lying process, so that the patient can lie on bed more comfortably, and soft tissue ulceration and even necrosis caused by local continuous ischemia, hypoxia and malnutrition due to long-time compression when a certain part of the body lies on bed are avoided. In the process of nursing patients, medical staff often help patients safely and quickly complete partial turning or posture adjustment actions by means of a nursing bed.

In order to enable a patient to defecate without getting out of the bed, the center of a hip plate of some nursing beds is provided with a defecation hole, the lower part of the defecation hole is provided with a defecation mechanism, the defecation hole needs to be covered when the nursing bed is not used and needs to be opened when the nursing bed is used, the existing cover plate generally used at the position of a manual defecation hole is used for opening or closing the defecation hole, so that the hip of the patient needs to be avoided, the operation is very inconvenient, and when the patient adjusts the lying position such as side turning, the bed frame of the nursing bed is turned on side, the cover plate still stays at the original position, the vacancy can be caused to appear in the hip, and the hip of the patient can be embedded into the vacancy to cause the discomfort of the patient.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the hip plate mechanism for the nursing bed can automatically open or close the defecation hole, can turn over along with the nursing bed without generating vacant positions, and is convenient to use and ingenious in structure.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a buttockss board mechanism for nursing bed, includes two buttock boards, two it is articulated between the buttock board, buttock board center is equipped with defecation hole, buttock board below is equipped with the chassis, be equipped with layer board, drive layer board in the chassis by the drive assembly of earlier parallel displacement back vertical movement to defecation hole department in the chassis, drive assembly includes driving piece, translation board, lifter plate, scissors fork elevation structure, fastener, the layer board sets up on the lifter plate, the lifter plate sets up on the translation board through scissors elevation structure liftable ground, the translation board promotes the translation by the driving piece, the fastener sets up at the drive end of driving piece and in layer board parallel displacement in-process with translation board and lifter plate block in order to restrict the lifting of relative translation board of lifter plate, be equipped with the retainer that is used for restricting fastener parallel displacement in the chassis, translation board parallel displacement in-process fastener receives the retainer restriction and stops translation, The driving piece continues to push the translation plate, so that the limitation of the clamping piece on the translation plate and the lifting plate is removed, and then the lifting plate is lifted upwards relative to the translation plate through the scissor lifting structure under the continuous pushing of the driving piece.

Compared with the prior art, the invention has the advantages that: the two hip plates are hinged to each other so as to turn on one side together with a frame of the nursing bed when the nursing bed is turned over laterally, the centers of the hip plates are provided with defecation holes for a patient to defecate and urinate, and the defecation holes need to be covered to realize the support of the hip when not used;

the driving mechanism drives the supporting plate to move according to the principle that the driving piece provides driving force, the moving process of the supporting plate in the whole driving process is divided into two stages, namely a parallel moving stage and a vertical moving stage, in the process, the translation plate is always driven by the driving piece to move in parallel, the clamping piece is arranged at the driving end of the driving piece, in the parallel moving stage, the translation plate and the lifting plate are clamped to limit the lifting plate to enable the lifting plate not to move vertically, when the parallel moving stage is switched to the vertical moving stage, the clamping piece is limited to move by the stop piece, the driving piece continues to push the translation plate to move so that the limiting of the clamping piece between the translation plate and the lifting plate is relieved, the lifting plate is lifted relative to the translation plate through the scissor lifting structure, the moving track of the supporting plate which is lifted first in translation and then lifted is realized, and.

Preferably, an elastic piece is arranged between the clamping piece and the driving end of the driving piece, and the elastic piece drives the clamping piece to have a tendency of clamping towards the lifting plate.

Preferably, the chassis comprises a bottom plate and a base, the base is fixedly connected with the hip plate, the scissor lifting structure comprises a first fork arm, a second fork arm, a first scissor slide rail, a second scissor slide rail and a top plate, the middle parts of the first fork arm and the second fork arm are hinged, the first scissor slide rail is arranged between the translation plate and the bottom plate, the supporting plate is fixed on the top plate and is arranged on the lifting plate in a sliding mode through the second scissor slide rail, one end of the first fork arm is hinged to the lifting plate, the other end of the first fork arm is hinged to the bottom plate, one end of the second fork arm is hinged to the translation plate, and the other end of the second fork arm is hinged to the top plate.

Preferably, the bottom plate is slidably connected with the base through a first slide rail, the setting direction of the first slide rail is the same as the pushing direction of the driving part, the stopping part is arranged on the bottom plate, and the friction force of the first slide rail is smaller than that of the first scissor slide rail.

Preferably, the bottom plate bottom surface is equipped with limit structure, limit structure includes gag lever post, stopper, unblock piece, the gag lever post middle part is articulated, the one end of gag lever post is spacing end, the other end of gag lever post is the execution end, spacing end department is equipped with the spacing groove, the stopper sets up on the base, in the spacing piece immigration spacing inslot when fastener and stopper cooperation, bottom plate and base are spacing each other, lifter plate one side is equipped with the unblock piece down, lifter plate decline, roof fall to when offsetting with the translation board unblock piece promote the execution end in order to relieve the cooperation of spacing groove with the stopper, driving piece drive translation board and drive layer board to initial position.

Preferably, the limiting structure comprises an extension bar and an ejector block, one end of the ejector block penetrates through the bottom plate from the bottom of the bottom plate and then is exposed on the upper surface of the bottom plate and matched with the unlocking block, the lower part of the other end of the ejector block is hinged with the bottom plate, the upper part of the other end of the ejector block is hinged with the extension bar, and the other end of the extension bar is connected with the limiting bar.

Preferably, the end part of the limiting end of the limiting rod is provided with a guide surface, and the guide surface is matched with the limiting block to lift the limiting end so that the limiting block moves into the limiting groove.

Preferably, the fastener is provided with a bayonet, the opening direction of the bayonet faces the translation plate, the bayonet clamps the lifting plate and the translation plate when the supporting plate moves in parallel, the lifting plate cannot vertically rise relative to the translation plate, the lifting plate and the translation plate move out of the bayonet after the fastener is stopped by the stop piece, and the lifting plate vertically moves relative to the translation plate along with the shearing fork lifting structure under the continuous pushing of the driving piece.

Preferably, the stop member is disposed on a lower surface of the base plate, the engaging member passes through the base plate via the stopping arm and is exposed at a lower portion of the base plate, and the base plate is provided with a long groove for the stopping arm to move laterally.

Preferably, the driving member is a cylinder.

Drawings

FIG. 1 is a schematic view of the structure of the nursing bed supporting plate covering the defecation hole.

Fig. 2 is a perspective view of the hip plate mechanism of the present invention.

FIG. 3 is a schematic view of the driving structure of the pallet retracting into the base according to the present invention.

FIG. 4 is a schematic view of another driving direction of the pallet retracting into the base according to the present invention.

FIG. 5 is a schematic view showing a driving structure of the pallet moving to the defecation hole according to the present invention.

FIG. 6 is another schematic view of the driving structure of the present invention when the support plate is moved to the defecation hole.

1. A hip plate; 1.1, defecation holes; 2. a chassis; 2.1, a stop member; 2.2, a bottom plate; 2.3, a base; 3. a support plate; 4. a drive assembly; 4.1, a driving piece; 4.2, a translation plate; 4.3, a lifting plate; 4.4, a scissor lifting structure; 4.4.1, a first yoke; 4.4.2, second prong; 4.4.3, a first scissor slide rail; 4.4.4, a second scissor slide rail; 4.4.5, a top plate; 4.5, a clamping piece; 4.5.1, bayonet; 4.6, an elastic piece; 4.7, a first slide rail; 5. a limiting structure; 5.1, limiting rods; 5.1.1, a limit groove; 5.1.2, a guide surface; 5.2, a limiting block; 5.3, an unlocking block; 5.4, lengthening a rod; 5.5, a top block.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings.

As described in the context of figures 1-6,

a buttock plate mechanism for a nursing bed comprises two buttock plates 1, wherein the two buttock plates 1 are hinged, a defecation hole 1.1 is formed in the center of each buttock plate 1, a bottom frame 2 is arranged below each buttock plate 1, a supporting plate 3 and a driving component 4 are arranged in the bottom frame 2, the supporting plate 3 is driven to vertically move to the defecation hole 1.1 through parallel movement in the bottom frame 2, the driving component 4 comprises a driving piece 4.1 and a translation plate 4.2, a lifting plate 4.3, a scissor lifting structure 4.4 and a clamping piece 4.5, the supporting plate 3 is arranged on the lifting plate 4.3, the lifting plate 4.3 is arranged on the translation plate 4.2 through the scissor lifting structure 4.4 in a liftable mode, the translation plate 4.2 is driven to move horizontally by the driving piece 4.1, the clamping piece 4.5 is arranged at the driving end of the driving piece 4.1 and is clamped with the lifting plate 4.3 to limit the lifting plate 4.3 to lift up the relative translation plate 4.2 in the parallel movement process of the lifting plate 4.3, a stop piece 2.1 used for limiting the parallel movement of the clamping piece 4.5 is arranged in the underframe 2, the clamping piece 4.5 is limited by the stop piece 2.1 and stops the parallel movement in the parallel movement process of the translation plate 4.2, the driving piece 4.1 continues to push the translation plate 4.2 so that the limitation of the clamping piece 4.5 on the translation plate 4.2 and the lifting plate 4.3 is relieved, and then the driving piece 4.1 continues to push the lower lifting plate 4.3 to be lifted upwards relative to the translation plate 4.2 through the scissor lifting structure 4.4.

The two hip plates 1 are hinged to each other so as to turn on one side together with a frame of the nursing bed when the nursing bed turns over laterally, the center of each hip plate 1 is provided with a defecation hole 1.1 for a patient to defecate and urinate, and the defecation holes 1.1 need to be covered to realize the support of the hip when not used, and as the defecation holes 1.1 are in the center, a supporting plate 3 for covering the defecation holes 1.1 is divided into two half sides so as to turn over along with the turning over of the nursing bed when the nursing bed turns over laterally, so that an underframe 2 and a driving assembly 4 are arranged below the two hip plates 1 so as to close and open the defecation holes 1.1;

the driving mechanism drives the supporting plate 3 to move according to the principle that the driving piece 4.1 provides driving force, the moving process of the supporting plate 3 in the whole driving process is divided into two stages, namely a parallel moving stage and a vertical moving stage, in the process, the translation plate 4.2 is always driven by the driving part 4.1 to move in parallel, and the engaging part 4.5 is arranged at the driving end of the driving part 4.1, and in the parallel moving stage, the translation plate 4.2 and the lifting plate 4.3 are engaged to restrain the lifting plate 4.3 from moving vertically, when the parallel movement stage is switched to the vertical movement stage, the clamping piece 4.5 is limited by the stop piece 2.1 to move, the driving piece 4.1 continues to push the translation plate 4.2 to move, so that the clamping piece 4.5 releases the limit between the translation plate 4.2 and the lifting plate 4.3, the lifting plate 4.3 is lifted relative to the translation plate 4.2 through the scissor lifting structure 4.4, thereby realize the movement track of layer board 3 translation earlier then lifting, avoid layer board 3 too early lifting and block in chassis 2.

Wherein, an elastic piece 4.6 is arranged between the clamping piece 4.5 and the driving end of the driving piece 4.1, the elastic piece 4.6 drives the clamping piece 4.5 to have a clamping tendency towards the lifting plate 4.3,

when the driving element 4.1 pushes the translation plate 4.2, the elastic element 4.6 drives the engagement element 4.5 to cooperate with the translation plate 4.2 and the lifting plate 4.3 through the elastic force of the elastic element 4.6, so that the lifting plate 4.3 cannot be lifted relative to the translation plate 4.2 until the lifting plate is limited by the stop element 2.1 and cannot continue to move in parallel with the driving element 4.1, in the process that the supporting plate 3 descends and retracts into the base frame 2, the lifting plate 4.3 vertically falls to the translation plate 4.2, the driving element 4.1 continues to retract, the lifting plate 4.3 and the translation plate 4.2 continue to cooperate with the engagement element 4.5 to realize engagement, and the phenomenon that the lifting plate 4.3 is lifted relative to the translation plate 4.2 in the process of retracting into the base 2.3 and is blocked in the base 2.3 is avoided.

The base frame 2 comprises a bottom plate 2.2 and a base 2.3, the base 2.3 is fixedly connected with a hip plate 1, the scissor lifting structure 4.4 comprises a first fork arm 4.4.1, a second fork arm 4.4.2, a first scissor slide rail 4.4.3, a second scissor slide rail 4.4.4 and a top plate 4.4.5, the middle parts of the first fork arm 4.4.1 and the second fork arm 4.4.2 are hinged, the first scissor slide rail 4.4.3 is arranged between the translation plate 4.2 and the bottom plate 2.2, the support plate 3 is fixed on the top plate 4.4.5 and is arranged on the lifting plate 4.3 through the second scissor slide rail 4.4.4 in a sliding manner, one end of the first fork arm 4.4.1 is hinged to the lifting plate 4.3, the other end of the first fork arm 4.4.2 is hinged to the bottom plate 2, one end of the second fork arm 4.4.2 is hinged to the translation plate 4.2, and the other end of the top plate 4.5 is hinged to the top plate 4.4.2.

The principle of the scissor lifting mechanism is that the driving part 4.1 pushes the translation plate 4.2, the translation plate 4.2 translates relative to the bottom plate 2.2 through the first scissor slide rail 4.4.3, one end of the first fork arm 4.4.1 is hinged to the lifting plate 4.3, the other end of the first fork arm is hinged to the base 2.3, one end of the second fork arm 4.4.2 is hinged to the translation plate 4.2, the other end of the second fork arm is hinged to the top plate 4.4.5, and the middle parts of the first fork arm 4.4.1 and the second fork arm 4.4.2 are hinged, so that the first fork arm 4.4.1 and the second fork arm 4.4.2 realize scissor movement, and the top plate 4.4.5 translates relative to the lifting plate 4.3 through the second scissor slide rail 4.4.4.4, so that the lifting plate 4.3 vertically moves relative to the translation plate 4.2, thereby realizing lifting of the pallet 3, otherwise, the driving part 4.1 pulls the translation plate 4.2, and the lifting structure can descend through the scissor slide rail.

The bottom plate 2.2 is connected with the base 2.3 in a sliding mode through a first slide rail 4.7, the arrangement direction of the first slide rail 4.7 is the same as the pushing direction of the driving piece 4.1, the stopping piece 2.1 is arranged on the bottom plate 2.2, and the friction force of the first slide rail 4.7 is smaller than that of the first scissor slide rail 4.4.3.

By arranging the bottom plate 2.2 and the first slide rail 4.7 between the bottom plate 2.2 and the base 2.3, the length of the base 2.3 can be reduced, so that the overall structure is more compact, the first slide rail 4.7 can provide transverse motion guide, and the friction force of the first slide rail 4.7 is smaller than that of the first scissors slide rail 4.4.3, namely, when the driving part 4.1 pushes the bottom plate 2.2, the first slide rail 4.7 is unlocked in advance to generate parallel movement, when the first slide rail 4.7 extends to the limit, the first scissors slide rail 4.4.3 participates in the parallel movement, so that the first scissors slide rail 4.4.3 can be prevented from sliding first to cause the lifting plate 4.3 to start lifting and be stuck in the base 2.3 before the parallel movement is finished.

Wherein, bottom plate 2.2 bottom surface is equipped with limit structure 5, limit structure 5 includes gag lever post 5.1, stopper 5.2, unblock piece 5.3, gag lever post 5.1 middle part is articulated, the one end of gag lever post 5.1 is spacing end, the other end of gag lever post 5.1 is execution end, spacing end department is equipped with spacing groove 5.1.1, stopper 5.2 sets up on base 2.3, stopper 5.2 moves into in the spacing groove 5.1.1 when fastener 4.5 cooperates with stopper 2.1, and bottom plate 2.2 and base 2.3 are spacing each other, lifter plate 4.3 one side is equipped with down and unlocks piece 5.3, lifter plate 4.3 descends, roof 4.4.5 whereabouts to and unlocks piece 5.3 when offsetting with translation plate 4.2 and pushes away the execution end in order to relieve the cooperation of spacing groove 5.1.1 with stopper 5.2, and driving piece 4.1 drive translation plate 4.2 and initial position.

When the supporting plate 3 needs to retract into the base frame 2, the driving member 4.1 retracts, the limiting structure 5 firstly limits the position of the bottom plate 2.2 so as not to allow the bottom plate 2.2 to move, the lifting plate 4.3 firstly descends and retracts relative to the base 2.3, the phenomenon that the supporting plate 3 moves horizontally while descending and is stuck with the base 2.3 in the process that the supporting plate 3 retracts into the base frame 2 can be avoided, the specific principle of the limiting structure 5 is that when the bottom plate 2.2 moves to the maximum displacement position in parallel, the limiting groove 5.1.1 on the limiting rod 5.1 at the position of the bottom plate 2.2 is matched with the limiting block 5.2 of the base 2.3 for limiting, the bottom plate 2.2 cannot move relative to the base 2.3, the driving member 4.1 continuously pushes the translation plate 4.2 to move relative to the bottom plate 2.2 so as to realize the lifting of the lifting plate 4.3, when the supporting plate 3 falls, the limiting block 5.2 is matched with the limiting groove 5.1.1 for limiting so that the bottom plate 2.2 cannot move relative to the base 2.3, the driving member 4.1 moves relative to the bottom plate 2, and then moves to the, when the lifting plate 4.3 falls to the lowest position, the unlocking block 5.3 at the lifting plate 4.3 pushes the execution end, the limiting block 5.2 is disengaged from the limiting groove 5.1.1, and the driving piece 4.1 is continuously retracted to enable the bottom plate 2.2 to be continuously retracted relative to the base 2.3 and the supporting plate 3 to move in parallel to enter the base 2.3.

The limiting structure 5 comprises an extension bar 5.4 and an ejector block 5.5, one end of the ejector block 5.5 penetrates through the bottom plate 2.2 from the bottom of the bottom plate 2.2 and then is exposed on the upper surface of the bottom plate 2.2 and matched with an unlocking block 5.3, the lower part of the other end of the ejector block 5.5 is hinged to the bottom plate 2.2, the upper part of the other end of the ejector block is hinged to the extension bar 5.4, and the other end of the extension bar 5.4 is connected with a limiting rod 5.1.

Extension bar 5.4 can promote the displacement of execution end with stopper 5.2 and enlarge, and unlocking piece 5.3 is used in ejector pad 5.5 promptly, and the other end of ejector pad 5.5 is equipped with the pin joint, and the relative pin joint of ejector pad 5.5 rotates to make extension bar 5.4 push down the execution end, finally make spacing groove 5.1.1 rise, spacing contact of spacing groove 5.1.1 and stopper 5.2, driving piece 4.1 continues the withdrawal so that base plate 2.2 continues the withdrawal relative to base 2.3.

The end part of the limiting end of the limiting rod 5.1 is provided with a guide surface 5.1.2, and the guide surface 5.1.2 is matched with the limiting block 5.2 to lift the limiting end so that the limiting block 5.2 can move into the limiting groove 5.1.1.

The guide surface 5.1.2 is used for guiding the limiting block 5.2 into the limiting groove 5.1.1 when the bottom plate 2.2 is opened to the limit position relative to the base 2.3.

The clamping piece 4.5 is provided with a bayonet 4.5.1, the opening direction of the bayonet 4.5.1 faces the translation plate 4.2, the lifting plate 4.3 and the translation plate 4.2 are clamped by the bayonet 4.5.1 when the supporting plate 3 moves in parallel, the lifting plate 4.3 cannot vertically ascend relative to the translation plate 4.2, the lifting plate 4.3 and the translation plate 4.2 are moved out of the bayonet 4.5.1 after the clamping piece 4.5 is stopped by the stopping piece 2.1, and the lifting plate 4.3 vertically moves relative to the translation plate 4.2 along with the shearing fork lifting structure 4.4 under the continuous pushing of the driving piece 4.1.

Bayonet 4.5.1 simple structure, lifter plate 4.3 and translation board 4.2 can be restricted in bayonet 4.5.1, because the opening direction is the level towards translation board 4.2 promptly, so can restrict the relative translation board 4.2 vertical movement of lifter plate 4.3, and after the fastener 4.5 motion is restricted, lifter plate 4.3 and translation board 4.2 can shift out relative bayonet 4.5.1, realize vertical removal.

The stop piece 2.1 is arranged on the lower surface of the bottom plate 2.2, the clamping piece 4.5 penetrates through the bottom plate 2.2 through the stop arm and is exposed at the lower part of the bottom plate 2.2, and the bottom plate 2.2 is provided with a long groove for the stop arm to move transversely.

Wherein the drive 4.1 is a cylinder.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.

Claims (10)

1. A buttock board mechanism for nursing bed which characterized in that: including two buttock boards (1), two it is articulated between buttock board (1), buttock board (1) center is equipped with defecation hole (1.1), buttock board (1) below is equipped with chassis (2), be equipped with in chassis (2) layer board (3), drive layer board (3) by drive assembly (4) of preceding parallel translation back vertical migration to defecation hole (1.1) department in chassis (2), drive assembly (4) include driving piece (4.1), translation board (4.2), lifter plate (4.3), cut fork elevation structure (4.4), fastener (4.5), layer board (3) set up on lifter plate (4.3), lifter plate (4.3) set up on translation board (4.2) through cutting fork elevation structure (4.4) liftable, translation board (4.2) are promoted the translation by driving piece (4.1), fastener (4.5) set up at the drive end of driving piece (4.1) and in the parallel translation board (4.3) with lifter plate (4.5) in-process (4.3), the translation board (4.3) and the translation board (4.5) are moved ) The clamping is used for limiting the lifting plate (4.3) to be lifted relative to the translation plate (4.2), a stop piece (2.1) used for limiting the parallel movement of the clamping piece (4.5) is arranged in the underframe (2), the clamping piece (4.5) is limited by the stop piece (2.1) and stops translating in the parallel movement process of the translation plate (4.2), the driving piece (4.1) continuously pushes the translation plate (4.2) to enable the limitation of the clamping piece (4.5) on the translation plate (4.2) and the lifting plate (4.3) to be relieved, and then the driving piece (4.1) continuously pushes the lower lifting plate (4.3) to be lifted upwards through the shear fork lifting structure (4.4) relative to the translation plate (4.2).

2. A hip plate mechanism for a nursing bed according to claim 1, characterized in that: an elastic piece (4.6) is arranged between the clamping piece (4.5) and the driving end of the driving piece (4.1), and the elastic piece (4.6) drives the clamping piece (4.5) to have a clamping trend towards the lifting plate (4.3).

3. A hip plate mechanism for a nursing bed according to claim 2, characterized in that: the chassis (2) comprises a bottom plate (2.2) and a base (2.3), the base (2.3) is fixedly connected with the hip plate (1), a scissor lifting structure (4.4) comprises a first fork arm (4.4.1), a second fork arm (4.4.2), a first scissor sliding rail (4.4.3), a second scissor sliding rail (4.4.4) and a top plate (4.4.5), the middle parts of the first fork arm (4.4.1) and the second fork arm (4.4.2) are hinged, the first scissor sliding rail (4.4.3) is arranged between the translation plate (4.2) and the bottom plate (2.2), the support plate (3) is fixed on the top plate (4.4.5) and is arranged on the lifting plate (4.3) in a sliding mode through the second scissor sliding rail (4.4.4.4), one end of the first fork arm (4.4.1) is hinged with the lifting plate (4.3), the other end of the first fork arm (4.3) is hinged with the bottom plate (4.4.2), and the other end of the second fork arm (4.4.4.5) is hinged with the top plate (4.4.2).

4. A hip plate mechanism for a nursing bed according to claim 3, characterized in that: the bottom plate (2.2) is connected with the base (2.3) in a sliding mode through the first sliding rail (4.7), the arrangement direction of the first sliding rail (4.7) is the same as the pushing direction of the driving piece (4.1), the stopping piece (2.1) is arranged on the bottom plate (2.2), and the friction force of the first sliding rail (4.7) is smaller than that of the first scissor sliding rail (4.4.3).

5. A hip plate mechanism for a nursing bed according to claim 3, characterized in that: the bottom surface of the bottom plate (2.2) is provided with a limiting structure (5), the limiting structure (5) comprises a limiting rod (5.1), a limiting block (5.2) and an unlocking block (5.3), the middle part of the limiting rod (5.1) is hinged, one end of the limiting rod (5.1) is a limiting end, the other end of the limiting rod (5.1) is an execution end, a limiting groove (5.1.1) is formed in the limiting end, the limiting block (5.2) is arranged on the base (2.3), the unlocking block (5.3) is arranged on one side of the lifting plate (4.3) downwards when the clamping piece (4.5) is matched with the retainer (2.1) so that the limiting block (5.2) can move into the limiting groove (5.1.1.1), the bottom plate (2.2) and the base (2.3) are mutually limited, the unlocking block (5.3) is arranged on one side of the lifting plate (4.3), the lifting plate (4.3) descends, the top plate (4.5) releases the limiting block (4.5) from falling to be abutted against the translation plate (4.2) so as to push the limiting groove (5., the driving piece (4.1) drives the translation plate (4.2) and drives the supporting plate (3) to an initial position.

6. A hip plate mechanism for a nursing bed according to claim 5, characterized in that: limiting structure (5) are including extension bar (5.4), kicking block (5.5) one end is passed after bottom plate (2.2) by bottom plate (2.2) bottom and is exposed and put at bottom plate (2.2) upper surface and with unblock piece (5.3) cooperation, the lower part and bottom plate (2.2) of kicking block (5.5) other end are articulated, upper portion and extension bar (5.4) are articulated, the other end and gag lever post (5.1) of extension bar (5.4) are connected.

7. A hip plate mechanism for a nursing bed according to claim 5, characterized in that: the end part of the limiting end of the limiting rod (5.1) is provided with a guide surface (5.1.2), and the guide surface (5.1.2) is matched with the limiting block (5.2) to lift the limiting end so that the limiting block (5.2) moves into the limiting groove (5.1.1).

8. A hip plate mechanism for a nursing bed according to claim 1, characterized in that: the clamping piece (4.5) is provided with a bayonet (4.5.1), the opening direction of the bayonet (4.5.1) faces to the translation plate (4.2), the support plate (3) is clamped between the lifting plate (4.3) and the translation plate (4.2) through the bayonet (4.5.1) when moving in parallel, the lifting plate (4.3) cannot vertically rise relative to the translation plate (4.2), the lifting plate (4.3) and the translation plate (4.2) are moved out of the bayonet (4.5.1) after the clamping piece (4.5) is stopped by the stopping piece (2.1), and the lifting plate (4.3) continuously pushes the lower vertical movement relative to the translation plate (4.2) along with the scissor lifting structure (4.4) in the driving piece (4.1).

9. A hip plate mechanism for a nursing bed according to claim 8, characterized in that: the stop piece (2.1) is arranged on the lower surface of the bottom plate (2.2), the clamping piece (4.5) penetrates through the bottom plate (2.2) through the stop arm and is exposed on the lower portion of the bottom plate (2.2), and a long-strip groove for the stop arm to move transversely is formed in the bottom plate (2.2).

10. A hip plate mechanism for a nursing bed according to claim 1, characterized in that: the driving piece (4.1) is a cylinder.

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