CN113384095A

CN113384095A - Space-variable bed-book cabinet integrated furniture

Info

Publication number: CN113384095A
Application number: CN202110678870.4A
Authority: CN
Inventors: 娄海峰; 李振; 童俊华
Original assignee: Zhejiang Sci Tech University ZSTU
Current assignee: Zhejiang Sci Tech University ZSTU
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-09-14
Anticipated expiration: 2041-06-18
Also published as: CN113384095B

Abstract

The invention discloses space-variable bed and bookcase integrated furniture. Comprises a lifting bed, a basic surrounding frame, a hidden bookcase table and four special-shaped driving chains; the lifting bed is characterized in that a basic enclosing frame is positioned at the periphery of four corners of the lifting bed and is fixedly connected with the wall surface and the ground of a room, one ends of four special-shaped driving chains are respectively arranged at two sides of the lifting bed along the length direction of the lifting bed, the other ends of the special-shaped driving chains are connected with the basic enclosing frame, and the lifting bed is lifted up and down in the basic enclosing frame by means of the four special-shaped driving chains; the hidden bookcase table is arranged on the abdomen part of the lifting bed close to the bedside, and when the lifting bed is lifted, the hidden bookcase table is turned and unfolded from the inside of the abdomen of the lifting bed. The invention fully utilizes the floor height of the small-dwelling house, furthest makes up the area occupied by the original bed, expands the space of free movement, realizes the space conversion function between a bedroom and a study room, and has the advantages of compact and simple structure, less field installation workload, strong practicability and wide application.

Description

Space-variable bed-book cabinet integrated furniture

Technical Field

The invention relates to multifunctional furniture for household life in small apartment houses, in particular to bed-bookcase integrated furniture with a variable space, which can be used for converting bedroom space and study space.

Background

Along with the improvement of the degree of urbanization in China, a large number of people are introduced into cities, and the increasing demand of people on houses comes with the increase of the land resources of the cities, however, the land resources of the cities are limited, and in order to meet the living demand of the masses, a plurality of small apartment houses appear in the cities, but due to the limitation of the house area, the small apartment meets the basic living and living requirements, and no other space can be used for further meeting the space requirements on learning, reading and activities, so that the using function of beds in bedrooms can be improved by using modern technical means, and the bedrooms can meet the conversion of various space requirements into a furniture development direction.

At present, the conversion of bedroom space focuses on changing the tiled state of the bed when the bed is always in use, the function that the bed can be stored when the bed is not in use is added, so that a part of originally occupied space can be moved out for other activities, the common technical means is that the bed is stood and hidden in a wardrobe close to a wall at ordinary times, and the bed can be turned out to the tiled state when the bed is needed. The turning bed achieves the purpose of freely moving a part of space to a certain extent, but the bed has a certain height when being tiled, and occupies a large area when being turned and stored in a vertical cabinet, so that the bed bookcase is required to be moved from other places when a bedroom needs to be used as a bookroom after the bed is tiled and moved out of the space, and the bed bookcase integrated furniture cannot be conveniently used for reading and learning.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides space-variable bed-bookcase integrated furniture.

The technical scheme adopted by the invention is as follows:

the invention comprises a lifting bed, a basic enclosing frame, a hidden bookcase table and four special-shaped driving chains; the lifting bed is characterized in that a basic enclosing frame is positioned at the periphery of four corners of the lifting bed and is fixedly connected with the wall surface and the ground of a room, one ends of four special-shaped driving chains are respectively arranged at two sides of the lifting bed along the length direction of the lifting bed, the other ends of the special-shaped driving chains are connected with the basic enclosing frame, and the lifting bed is lifted up and down in the basic enclosing frame by means of the four special-shaped driving chains; the hidden bookcase table is arranged on the abdomen part of the lifting bed close to the bedside, and when the lifting bed is lifted, the hidden bookcase table is turned and unfolded from the inside of the abdomen of the lifting bed.

The lifting bed comprises a bed body and a movable bed head backrest, wherein the lower edge of the movable bed head backrest is hinged with the upper edge of the bed head of the bed body; the foundation enclosure frame comprises four chain support guide columns and a connecting frame, the four chain support guide columns are respectively arranged on the outer sides of four corners of the bed body and are vertically arranged, each chain support guide column is fixedly embedded in a wall surface, the bottom surfaces of the four chain support guide columns are fixedly connected with the ground, the connecting frame is fixed at the top ends of the four chain support guide columns, and the lifting bed is respectively connected with the four chain support guide columns by virtue of four special-shaped driving chains and ascends and descends along the vertical direction of the chain support guide columns; the hidden bookcase table comprises a bookcase with a table and two sets of six-rod folding and unfolding mechanisms, the two sets of six-rod folding and unfolding mechanisms are symmetrically arranged on two sides of the bookcase with the table, the upper end of each set of six-rod folding and unfolding mechanism is connected into the abdomen of the bed body, the lower end of each six-rod folding and unfolding mechanism is connected with the bookcase with the table, and the six-rod folding and unfolding mechanisms drive the bookcase with the table to be folded into the abdomen of the bed body or unfolded below the outside of the bed body.

The bed body comprises a bed body frame, two sets of bed head driving chain wheel boxes, four universal joint transmission shafts, two sets of driving speed reduction motors, two lower chain tracks, two upper chain tracks and two sets of bed tail driving chain wheel boxes;

the bed body frame comprises a bed frame, two sets of bedside support assemblies and a bed tail ladder passageway frame, wherein a lower chain track and an upper chain track are arranged below crossbeams on two sides of the bed frame, the track directions of the lower chain track and the upper chain track are parallel to the length directions of the crossbeams on two sides of the bed frame, the lower chain track is positioned below the upper chain track, the lower chain track and the upper chain track are fixedly arranged at the bottoms of the crossbeams of the bed frame through the bed side support assemblies, the upper chain track extends into a bed head driving chain wheel box, and the lower chain track extends into a bed tail driving chain wheel box; two sets of bedside driving chain wheel boxes are fixed on two bed legs at two sides of the bedside end of the bedstead; the bed tail ladder aisle frame is fixed below the bed tail side of the bed frame, and the two sets of bed tail driving chain wheel boxes are fixed on the two sides of the bed tail ladder aisle frame.

The two sets of driving speed reduction motors are both double output shafts, the two sets of driving speed reduction motors are respectively positioned at the bed head and the bed tail of the bed frame, one set of driving speed reduction motor positioned at the bed head is positioned at the bottom surface of the bed frame between the two sets of bed head driving chain wheel boxes, and one set of driving speed reduction motor positioned at the bed tail is arranged on a bed tail step passageway frame between the two sets of bed tail driving chain wheel boxes; output shafts at two ends of a set of driving speed reducing motors positioned at the head of the bed are respectively and coaxially connected to input shafts of two head driving chain wheel boxes at two sides of the head side end of the bedstead through respective universal joint transmission shafts, and output shafts at two ends of a set of driving speed reducing motors positioned at the tail of the bed are respectively and coaxially connected to input shafts of two head driving chain wheel boxes at two sides of a step passageway frame at the tail of the bedstead through respective universal joint transmission shafts; the motion and power of the two sets of driving reducing motors are transmitted to a bedside driving chain wheel box and a bed tail driving chain wheel box which are positioned at the two sides of the bedside and the bed tail through universal joint transmission shafts at the two sides.

The chain supports the guide post and includes chain support post and guide post, the guide post is vertical arranges, guide post horizontal cross section is "H" shape that both sides opening degree of depth differs, shallow one side and wall fixed connection of guide post opening, chain support post fixed mounting is in the dark one side of guide post opening, and along being on a parallel with the vertical arranging of guide post, the width of chain support post is less than guide post open-ended width, the both sides of chain support post lateral surface along vertical direction all are equipped with two rows of barb structures of parallel, every row of barb structure contains along a plurality of last barb convex plates of vertical direction interval arrangement.

The bookcase with the desk comprises two sets of rotary bookcases, a cabinet body, eight sliding boots, two desk hanging pins and a folding desk; the cabinet body is hinged on the folding desk, one corner of two short side edges of the folding desk is respectively hinged with the lower corner where the cabinet opening surfaces on two sides of the cabinet body are positioned, so that the desktop of the folding desk can be turned to be in the same plane with the upper surface of the bottom plate around the horizontal straight line axis where the lower edge of the cabinet opening surface of the cabinet body is positioned; the two sets of rotating bookshelves are symmetrically arranged in the cabinet cavities at two ends of the cabinet body, and the rotating bookshelves can be horizontally overturned by 180 degrees around the vertical shaft and are arranged in the cabinet body; two rows of sliding boots which are all arranged in parallel along the vertical direction are arranged on the outer surfaces of the two side plates of the cabinet body, and the two desk hanging pins protrude out of the two sides of the cabinet body.

The rotary bookshelf comprises a bookshelf body, an upper horizontal overturning assembly and a lower horizontal overturning assembly, wherein the bookshelf body is arranged in a cabinet cavity of the cabinet body, the upper end and the lower end of the bookshelf body and the cabinet body are respectively provided with the upper horizontal overturning assembly and the lower horizontal overturning assembly, and the upper horizontal overturning assembly and the lower horizontal overturning assembly can be horizontally overturned and arranged in the cabinet cavity of the cabinet body.

The upper horizontal turnover assembly comprises an upper roller, an upper U-shaped straight rail, an upper fixed shaft fastener and an upper bookshelf swing arm; the upper idler wheel is convexly and hinged to one side edge of the upper surface of the bookshelf body, the upper U-shaped straight rail is embedded and fixed in the middle of a top plate of a cabinet cavity of the cabinet body, and the upper idler wheel is embedded in the upper U-shaped straight rail and connected in a sliding manner to form a horizontal sliding pair; an upper fixed shaft fastener is arranged at one end of the upper U-shaped straight rail close to the middle part of the bookshelf body, the upper fixed shaft fastener is fixed on the bottom surface of a top plate of a cavity of the bookshelf body, one end of an upper swing arm of the bookshelf is hinged with the upper fixed shaft fastener, and the other end of the upper swing arm of the bookshelf is hinged in the middle of the upper surface of the bookshelf body, so that a connecting rod hinge pair is formed; the lower horizontal overturning assembly comprises a lower roller, a lower U-shaped straight rail, a lower fixed shaft fastener, a lower bookshelf swing arm, a lower bearing disc and a plurality of bearing balls; the lower idler wheel is convexly and hinged on one side edge of the lower surface of the bookshelf body, the lower U-shaped straight rail is embedded and fixed in the middle of the bottom plate of the cabinet cavity of the cabinet body, and the lower idler wheel is embedded in the lower U-shaped straight rail and is connected in a sliding manner to form a horizontal sliding pair; the lower U-shaped straight rail is provided with a lower fixed shaft fastener at one end close to the middle part of the cabinet body, the lower fixed shaft fastener is fixed on the top surface of the bottom plate of the cabinet cavity of the cabinet body, a lower bearing plate is fixed in the middle of the lower surface of the bookshelf body, a plurality of bearing balls are arranged on the lower surface of the lower bearing plate in a rolling manner, one end of the lower swing arm of the bookshelf is hinged to the lower fixed shaft fastener, and the other end of the lower swing arm of the bookshelf is hinged to the lower bearing plate to form a connecting rod hinge pair.

The folding desk comprises a desk body, desk leg stop rods, four desk leg support rods, narrow desk legs, wide desk legs, four desk leg sliding shoes, four long pressure springs and two lock catch sliding pin assemblies; the upper ends of the narrow table legs and the wide table legs are respectively hinged with the two ends of the table body along the long side beam, the inner side surfaces of the middle parts of the narrow table legs and the wide table legs are provided with leg part strip-shaped cavities, and each leg part strip-shaped cavity of the narrow table legs and the wide table legs is slidably hinged with the table body after passing through a table leg sliding shoe and a table leg support rod to form a table leg sliding hinge pair; the two long side beams at two sides of the table body are both provided with an inner cavity, two long pressure springs are arranged in the inner cavity of each long side beam, and the end parts of two ends of the table leg stop lever respectively extend into the inner cavities of the two long side beams at two sides of the table body and are positioned between the two long pressure springs; the other end of the two short side beams of the desk body far away from a hinged point between the folding desk and the cabinet body is provided with a lock catch sliding pin assembly, each lock catch sliding pin assembly comprises a lock catch shell, a lock catch plate, a small pressure spring and a sliding pin, the lock catch shell is fixedly installed in the short side beams of the desk body in a penetrating mode along the direction parallel to the long side beams of the desk body, the sliding pin is arranged in the lock catch shell in a penetrating mode and is in coaxial sliding connection with the lock catch shell, a small pressure spring is arranged between an inner flange of the outer end of the lock catch shell and a shaft shoulder of the sliding pin located in the lock catch shell respectively, the small pressure spring is sleeved outside the sliding pin, the end portions, extending out of the short side beams of the desk body, of the lock catch plate and the sliding pin are hinged, and the two short side faces of the desk body rotate.

The two ends of the table leg stop lever are both provided with T-shaped pieces, the middle ends of the T-shaped pieces are coaxially connected with the table leg stop lever, and the two branch ends of the T-shaped pieces are respectively sleeved in the two long pressure springs.

Each set of the six-rod folding and unfolding mechanism comprises a cabinet-side sliding frame, a long swing arm, a short swing arm, a driving arm, an electric push rod, a push rod head guide rail, a push rod head guide shoe, a short swing arm support and a long swing arm support; two parallel sliding grooves are formed in the side face of the cabinet side sliding frame, two rows of sliding shoes which are vertically arranged on the outer surface of the cabinet side plate with the desk bookcase are respectively embedded in the two sliding grooves and are connected in a vertical sliding mode to form an upper sliding pair and a lower sliding pair, and the cabinet side sliding frame is vertically installed on the outer surface of the cabinet side plate with the desk bookcase through the upper sliding pair and the lower sliding pair; one end of the long swing arm and one end of the short swing arm are respectively hinged with the middle part of the cabinet side sliding frame and the outer side surface of the upper end part, the other end of the short swing arm and the other end of the long swing arm are respectively hinged with the lower ends of the short swing arm support and the long swing arm support, the short swing arm and the long swing arm are mutually crossed but not connected with each other, the long swing arm support is fixed on the lower surface of the lower cross beam on the bedside side of the bed frame, and the short swing arm support is fixed on the lower surface of the abdomen of the bed frame after being separated from the long swing arm support in the direction towards the inside of the bed; the one end of actuating arm is articulated with the middle part of long swing arm, and the other end of actuating arm articulates in the push rod head and leads the one end of boots, and push rod head guide rail and electric putter all arrange horizontally respectively in the side of bedside bracket component bedside side and tailstock side, the push rod head is led the boots and is slided to inlay and form sliding connection and can slide along bedstead length direction on installing in the push rod head guide rail, and electric putter's rod end and push rod head lead the other end of boots articulated, lead boots and slide on following the push rod head guide rail by electric putter operation drive push rod head, it is rotatory to drive cabinet side balladeur train through actuating arm and long swing arm.

Each set of the bedside driving chain wheel box comprises a chain wheel box, and each set of the bedside driving chain wheel box also comprises a chain wheel box; each chain wheel box comprises a driving shaft chain wheel and a chain wheel box side plate, the driving shaft chain wheel is rotationally connected to the chain wheel box side plate, and the driving shaft chain wheel is coaxially connected with an output shaft of the universal joint transmission shaft; a special-shaped driving chain is slidably installed on the upper chain track and serves as a bedside special-shaped driving chain, and after horizontally penetrating through the bedside driving chain wheel box, the bedside special-shaped driving chain is wound through a driving shaft chain wheel of the bedside driving chain wheel box and is vertically and downwards arranged; a special-shaped driving chain is slidably installed on the lower chain track and serves as a bed tail special-shaped driving chain, and the bed tail special-shaped driving chain is horizontally inserted into the bed tail driving chain wheel box and then is wound around a driving shaft chain wheel of the bed tail driving chain wheel box to be vertically and downwardly arranged; the special-shaped driving chain comprises a special-shaped inner chain plate and a special-shaped outer chain plate, the special-shaped inner chain plate and the special-shaped outer chain plate are sequentially and alternately assembled along the chain direction through a roller and a pin shaft of a standard chain to form the chain, and the peripheral side surface of the special-shaped outer chain plate is provided with a hook-shaped bulge; the hook-shaped bulges on the special-shaped outer chain plates of the special-shaped driving chains of the bed head special-shaped driving chain and the bed tail special-shaped driving chain are meshed and hooked with the upper barb convex plate of the chain supporting column of the chain supporting guide column.

The hook-shaped protrusions of the special-shaped outer chain plates are bent in one direction along the same direction, the hook-shaped protrusions are used for being matched with the upper barb convex plates, and the bending direction of the hook-shaped protrusions is opposite to that of the upper barb convex plates so that the hook-shaped protrusions are hooked with the upper barb convex plates.

The invention has the advantages and beneficial effects that:

1. the invention fully utilizes the floor height of the small-dwelling house, and lifts the bed to a height which is enough to pass through the ground by driving the special-shaped chain, thereby furthest making up the area occupied by the original bed and expanding the space of free movement.

2. The bed has the advantages that the space conversion function between the bedroom and the study room is realized, the foldable bookcase with the table is stored in the abdomen of the bed, when the bed is in a state that the room on the ground is the bedroom, the bookcase with the table is horizontally stored in the abdomen under the bed, when the bed is lifted to a height allowing people to move, the bookcase with the table can be controlled to be unfolded and turned out to be in a vertical state, meanwhile, the desk attached to the surface of the bookcase is opened, the rotatable bookcases at the two ends of the bookcase are rotated to a state that the openings face outwards so as to facilitate book taking, facilities of the study room are arranged, and the bedroom is quickly changed into the study room.

3. The invention has compact and simple structure, is suitable for factory manufacture, has less field installation workload, strong practicability and wide application prospect.

Drawings

FIG. 1 is a schematic view of the present invention in use in a sleeping space;

FIG. 2 is a schematic view of the present invention in use in a study space;

FIG. 3 is a schematic view of the main structure of the lifting part with the outer decoration removed;

FIG. 4 is a schematic view of the driving of the lifting chain on one side of the bed body according to the present invention;

FIG. 5 is a schematic view of a bookcase with a desk according to the present invention;

FIG. 6 is a schematic view of a rotary bookshelf according to the present invention;

FIG. 7 is a schematic diagram of the movement trace of the rotating bookcase according to the present invention;

FIG. 8 is a schematic view of a folding desk according to the present invention;

FIG. 9 is a schematic structural view of a six-bar deployment mechanism of the present invention;

fig. 10 is a schematic diagram of the movement track of the hidden bookcase table of the present invention when it is folded.

In the figure: 1-lifting bed, 2-basic enclosing frame, 3-concealed book cabinet table, 4-special-shaped driving chain,

11-bed, 111-bed frame, 1111-bed frame, 1112-bedside support assembly, 1113-tailstock step aisle frame, 112-headstock drive sprocket box, 1121-sprocket box, 11211-drive shaft sprocket, 11212-connecting rod, 11213-sprocket box side plate, 11214-chain guide limiting plate, 11215-sprocket box guide plate, 113-universal joint drive shaft, 114-drive reduction motor, 115-lower chain track, 116-upper chain track, 117-tailstock drive sprocket box, 12-folding bedside backrest;

21-chain support guide column, 211-chain support column, 2111-upper barb convex plate, 212-guide column and 22-connecting frame;

31-book cabinet with table, 311-rotating book shelf, 3111-book shelf body, 3112-upper roller, 3113-upper U-shaped straight rail, 3114-upper fixed shaft fastener, 3115-upper swing arm of book shelf, 3116-lower bearing plate, 3117-bearing ball, 3118-lower swing arm of book shelf, 3119-lower roller, 3120-lower U-shaped straight rail, 3121-lower fixed shaft fastener, 312-cabinet body, 313-sliding shoe, 314-hanging pin of desk, 315-folding desk, 3151-table body, 3152-leg blocking rod, 3153-leg supporting rod, 3154-narrow leg, 3155-wide leg, 3156-leg sliding shoe, 3157-long pressure spring, 3158-lock shell, 3159-lock plate, 31510-small pressure spring, 31511-sliding pin, 32-six-bar folding mechanism, 321-cabinet side carriage, 322-long swing arm, 323-short swing arm, 324-driving arm, 325-electric push rod tail frame, 326-electric push rod, 327-push rod head guide rail, 328-push rod head guide shoe, 329-short swing arm bracket and 3210-long swing arm bracket;

41-special-shaped inner chain plates and 42-special-shaped outer chain plates.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

As shown in fig. 1 and 2, the multifunctional lifting bed comprises a lifting bed 1, a basic surrounding frame 2, a hidden bookcase table 3 and four special-shaped driving chains 4; the base enclosing frame 2 is positioned at the periphery of four corners of the lifting bed 1 and is fixedly connected with the wall surface and the ground of a room, one ends of four special-shaped driving chains 4 are respectively arranged at the lower parts of two ends of two sides of the lifting bed 1 along the length direction of the lifting bed 1, the other ends of the special-shaped driving chains 4 are connected with the base enclosing frame 2, and the lifting bed 1 is lifted up and down in the base enclosing frame 2 by means of the four special-shaped driving chains 4; the hidden bookcase table 3 is arranged on the abdomen part near the bedside side in the lifting bed 1, and when the lifting bed 1 is lifted, the hidden bookcase table 3 is turned and unfolded from the abdomen part of the lifting bed 1.

The lifting bed 1 comprises a bed body 11, a movable bedside backrest 12 and an external decorative panel, wherein the lower edge of the movable bedside backrest 12 is hinged with the upper edge of the bedside of the bed body 11; when the lifting bed 1 is lifted, the movable bed head backrest 12 is flatly placed, so that the distance between the bed body 11 and the ground can meet the requirement of the passing height to the maximum extent. The external decorative panel is a plate with a shielding structure around the bed body 11.

The basic enclosure frame 2 comprises four chain support guide posts 21 and a connecting frame 22, the four chain support guide posts 21 are respectively arranged on the outer sides of four corners of the bed body 11 and are vertically arranged, each chain support guide post 21 is fixedly embedded in a wall surface facing the head or tail of the bed, the bottom surfaces of the four chain support guide posts 21 are respectively fixedly connected with the ground, the connecting frame 22 is fixed at the top ends of the four chain support guide posts 21, and the lifting bed 1 is respectively connected with the four chain support guide posts 21 by four special-shaped driving chains 4 and ascends and descends along the vertical direction of the chain support guide posts 21; thus, the four chain support guide posts 21 and the connecting frame 22 form a stable support frame.

As shown in fig. 2 and 3, the hidden bookcase table 3 includes a bookcase with a table 31 and two sets of six-rod folding and unfolding mechanisms 32, the two sets of six-rod folding and unfolding mechanisms 32 are symmetrically disposed on both sides of the bookcase with a table 31, the upper end of each set of six-rod folding and unfolding mechanism 32 is connected to the inside of the abdomen of the bed 11, the lower end of each six-rod folding and unfolding mechanism 32 is slidably connected to the bookcase with a table 31, the six-rod folding and unfolding mechanisms 32 drive the bookcase with a table 31 to fold into the abdomen of the bed 11 or unfold below the outside of the bed 11, and the six-rod folding and unfolding mechanisms 32 on both sides of the bookcase with a table 31 can drive the bookcase with a table 31 to turn from a vertical position to a horizontal position and store in the abdomen of the bed 11.

When folded, the central plane of the bookcase with the desk 31 in the length direction coincides with the central plane of the lifting bed 1 in the width direction.

As shown in fig. 3, the bed 11 includes a bed frame 111, two sets of bed head driving sprocket boxes 112, four universal joint transmission shafts 113, two sets of driving reduction motors 114, two lower chain tracks 115, two upper chain tracks 116, and two sets of bed tail driving sprocket boxes 117.

The bed frame 111 comprises a bed frame 1111, two sets of bed side bracket assemblies 1112 and a bed tail ladder passageway frame 1113, the bed frame 1111 is of a common bed frame structure, a lower chain rail 115 and an upper chain rail 116 are arranged below crossbeams on two sides of the bed frame 1111, the rail directions of the lower chain rail 115 and the upper chain rail 116 are parallel to the length direction of the crossbeams on two sides of the bed frame 1111, the lower chain rail 115 is positioned below the upper chain rail 116, the lower chain rail 115 and the upper chain rail 116 are fixedly arranged at the bottoms of the crossbeams of the bed frame 1111 through the bed side bracket assemblies 1112, the upper chain rail 116 extends into and is connected with the bed head driving sprocket box 112, and the lower chain rail 115 extends into and is connected with the bed tail driving sprocket box 117; the two sets of bedside support assemblies 1112 are symmetrically arranged below the girders on the two sides of the bed frame 1111, the upper ends of the bedside support assemblies 1112 are fixedly connected with the lower surfaces of the girders of the bed frame 1111 on the same side, the two lower chain rails 115 are respectively fixed at the lower parts of the bedside support assemblies 1112 on the two sides of the bed frame 1111, and the two upper chain rails 116 are respectively fixed at the middle parts of the bedside support assemblies 1112 on the two sides of the bed frame 1111.

The two sets of bedside driving chain wheel boxes 112 are symmetrically fixed on two bed legs at two sides of the bedside end of the bedstead 1111 about the central plane of the bedstead 1111, and are specifically fixed on the upper parts of the inner sides of the bed legs, and the two sets of bedside driving chain wheel boxes 112 are both single output shafts and have opposite output shafts; the bed tail ladder passageway frame 1113 forms a middle first-stage step structure between the ground and the bed frame 1111, the bed tail ladder passageway frame 1113 is fixed below the bed tail side of the bed frame 1111, the two sets of bed tail driving chain wheel boxes 117 are symmetrically fixed on the lower surface of the outer side of the upper layer structure of the first-stage step frames at two sides of the bed tail ladder passageway frame 1113 about the central plane of the bed frame 1111, and the two sets of bed tail driving chain wheel boxes 117 are both single output shafts and opposite output shafts.

Two sets of driving reducing motors 114 are double output shafts, the two sets of driving reducing motors 114 are respectively positioned at the head and the tail of the bed frame 1111, and are specifically respectively fixed at the lower surface of the middle part of the bottom surface of the lower cross beam at the head side of the bed frame 1111 and the lower surface of the upper structure at the middle part of the bed tail ladder passageway frame 1113, one set of driving reducing motors 114 positioned at the head is positioned at the bottom surface of the bed frame 1111 between the two sets of head driving chain wheel boxes 112, and one set of driving reducing motors 114 positioned at the tail is arranged at the bottom surface of the bed tail ladder passageway frame 1113 between the two sets of tail driving chain wheel boxes 117.

Output shafts at two ends of a set of driving speed reducing motors 114 positioned at the head of the bed are respectively and coaxially connected to input shafts of two head driving chain wheel boxes 112 at two sides of the head side end of the bed frame 1111 through respective universal joint transmission shafts 113, and output shafts at two ends of a set of driving speed reducing motors 114 positioned at the tail of the bed are respectively and coaxially connected to input shafts of two head driving chain wheel boxes 112 at two sides of a step passageway frame 1113 at the tail side end of the bed frame 1111 through respective universal joint transmission shafts 113; that is, four universal joint transmission shafts 113 are symmetrically arranged on two sides of the center plane of the bed frame 1111 at the bed head and the bed tail, the input ends of the universal joint transmission shafts 113 are coaxially connected to the output shaft of the driving speed reduction motor 114 through keys, and the output ends of the universal joint transmission shafts 113 are also coaxially connected to the output shaft of the bed head driving chain wheel box 112 or the bed tail driving chain wheel box 117 at the same side through keys. The motion and power of the two sets of driving reduction motors 114 are transmitted to a bedside driving chain wheel box 112 and a bed tail driving chain wheel box 117 which are positioned at the two sides of the bedside and the bed tail through universal joint transmission shafts 113 at the two sides.

As shown in fig. 1 and 4, the chain support guide post 21 includes a chain support post 211 and a guide post 212, the guide post 212 is vertically disposed, the horizontal cross section of the guide post 212 is "H" shape with different opening depths on two sides, one side of the guide post 212 with a shallow opening is fixedly connected with the wall surface, the chain support post 211 is fixedly installed in one side of the guide post 212 with a deep opening, and is vertically disposed along the guide post 212, the width of the chain support post 211 is smaller than the width of the guide post 212 with an opening, two rows of parallel barb structures are respectively arranged on the outer side surface of the chain support post 211 along the long sides on two sides of the vertical direction, each row of barb structures includes a plurality of upper barb convex plates 2111 protruding towards the outside of the wall along the vertical direction, and the space between the two rows of barb structures is the chain pitch.

As shown in fig. 5, the bookcase with desk 31 includes two sets of rotating bookshelves 311, a cabinet 312, eight sliding shoes 313, two desk hanging pins 314 and a folding desk 315; the cabinet body 312 is hinged on the folding desk 315, and one corner of two short sides of the folding desk 315 is hinged with the lower corner of the cabinet opening surface at two sides of the cabinet body 312 respectively, so that the table top of the folding desk 315 can be turned to be coplanar with the upper surface of the bottom plate around the horizontal linear axis of the lower edge of the cabinet opening surface of the cabinet body 312; the two sets of rotating bookshelves 311 are symmetrically arranged in the cabinet cavities at the two ends of the cabinet body 312, the rotating bookshelves 311 can be horizontally overturned by 180 degrees around the vertical axis and are arranged in the cabinet body 312, and the rotating bookshelves 311 can horizontally rotate by 180 degrees; two rows of sliding shoes 313 which are arranged in parallel along the vertical direction are arranged on the outer surfaces of two side plates of the cabinet body 312, each row of sliding shoes 313 mainly comprises a plurality of sliding shoes 313 which are arranged at intervals along the vertical direction, and the sliding shoes 313 are used for being matched with sliding grooves on a cabinet-side sliding frame 321 of the six-rod folding and unfolding mechanism 32. The two desk hanging pins 314 protrude out of the two sides of the cabinet body 312 and are symmetrically fixed in the middle of the edge of each side of the cabinet body 312 facing the cabinet opening; the desk hanging pin 314 is used to cooperate with a locking plate 3159 of the folding desk 315.

As shown in fig. 5 and 6, the rotating bookrack 311 includes a bookrack body 3111, an upper horizontal turning assembly and a lower horizontal turning assembly, the bookrack body 3111 is disposed in the cavity of the cabinet 312, the upper horizontal turning assembly and the lower horizontal turning assembly are respectively installed between the upper end and the lower end of the bookrack body 3111 and the cabinet 312, and the upper horizontal turning assembly and the lower horizontal turning assembly can be installed in the cavity of the cabinet 312 in a horizontally-turnable manner;

the upper horizontal turning assembly comprises an upper roller 3112, an upper U-shaped straight rail 3113, an upper fixed shaft fastener 3114 and a bookshelf upper swing arm 3115; the upper roller 3112 is convexly and hingedly mounted on one side of the upper surface of the bookshelf body 3111, the upper U-shaped straight rail 3113 is embedded and fixed in the middle of the top plate of the cabinet cavity of the cabinet body 312, the upper U-shaped straight rail 3113 is parallel to the horizontal length direction of the cabinet body 312 and the horizontal direction of the wall surface, and the upper roller 3112 is embedded in the cavity of the upper U-shaped straight rail 3113 and is connected in a sliding manner to form a horizontal sliding pair; an upper fixed shaft fastener 3114 is arranged at one end of the upper U-shaped straight rail 3113 close to the middle of the cabinet body 312, the upper fixed shaft fastener 3114 is fixed at the bottom of the top plate of the cavity of the cabinet body 312, one end of an upper swing arm 3115 of the bookshelf is hinged with the upper fixed shaft fastener 3114, and the other end is hinged in the middle of the upper surface of the bookshelf body 3111 to form a connecting rod hinge pair;

the lower horizontal turning component comprises a lower roller 3119, a lower U-shaped straight rail 3120, a lower fixed shaft fastener 3121, a bookshelf lower swing arm 3118, a lower bearing plate 3116 and a plurality of bearing balls 3117; the lower roller 3119 is convexly and hingedly mounted on one side of the lower surface of the bookshelf body 3111, the lower U-shaped straight rail 3120 is embedded and fixed in the middle of the bottom plate of the cabinet cavity of the cabinet body 312, the lower U-shaped straight rail 3120 is parallel to the horizontal length direction of the cabinet body 312 and the horizontal direction of the wall surface, and the lower roller 3119 is embedded in the cavity of the lower U-shaped straight rail 3120 and is slidably connected to form a horizontal sliding pair; a lower fixed shaft fastener 3121 is arranged at one end of the lower U-shaped straight rail 3120 close to the middle part of the cabinet 312, the lower fixed shaft fastener 3121 is fixed on the top surface of the bottom plate of the cabinet cavity of the cabinet 312, a lower bearing plate 3116 is fixed in the middle of the lower surface of the bookshelf body 3111, a plurality of bearing balls 3117 are arranged on the lower surface of the lower bearing plate 3116 in a rolling manner, one end of a lower swing arm 3118 of the bookshelf is hinged with the lower fixed shaft fastener 3121, and the other end is hinged with the lower bearing plate 3116, so as to form a connecting rod hinge pair;

the upper roller 3112 and the lower roller 3119 are respectively fixed in the middle of the same side of the thickness direction of the upper and lower surfaces of the bookshelf body 3111 in a protruding manner, the upper U-shaped straight rail 3113 and the lower U-shaped straight rail 3120 are respectively fixed in the middle of the top plate and the bottom plate of the cabinet cavity of the cabinet body 312 in an embedded manner, and the upper roller 3112 and the lower roller 3119 are respectively connected with the adjacent cavities of the upper U-shaped straight rail 3113 and the lower U-shaped straight rail 3120 in a sliding manner; the upper fixed shaft fastener 3114 and the lower fixed shaft fastener 3121 are respectively fixed on the top plate and the bottom plate of the cabinet 312, and are both located at one end of the upper U-shaped straight rail 3113 and the lower U-shaped straight rail 3120 close to the middle of the cabinet 312.

A plurality of bearing balls 3117 are arranged on the lower surface of the lower bearing plate 3116 at intervals in the circumferential direction in a spherical hinge manner, and are semi-embedded and protruded out of the surface of the lower bearing plate 3116, so that the bottom surface of the bookshelf body 3111 is connected with the bottom plate of the cabinet cavity of the cabinet body 312 in a rolling manner through the bearing balls 3117 of the lower bearing plate 3116, and is flexibly rotated relative to the bottom plate of the cabinet cavity of the cabinet body 312. Therefore, the weight of the bookshelf and the books on the bookshelf is dispersed and borne by the bearing balls 3117 in a large area, and the concentrated load of the weight of the bookshelf on the desktop is effectively reduced.

In specific implementation, one end of the lower swing arm 3118 of the bookshelf is a small end, and the other end is a large end. The small end of the lower swing arm 3118 of the bookshelf is hinged to the upper end of a lower fixed shaft fastener 3121 on the bottom plate of the cabinet 312 cavity, and the large end of the lower swing arm 3118 of the bookshelf is sleeved on the outer surface of the lower bearing plate 3116 and is rotatably connected with the lower bearing plate 3116.

The bookshelf body 3111 can be horizontally turned in the cavity of the cabinet body 312 under the limit driving of the horizontal sliding pair of the upper horizontal turning assembly and the lower horizontal turning assembly and the limit driving of the connecting rod hinge pair. The hinge point between the other end of the upper swing arm 3115 of the bookshelf and the upper surface of the bookshelf body 3111 is connected with the big end of the lower bearing plate 3116 and the lower swing arm 3118 of the bookshelf, and the hinge point between the upper swing arm 3115 and the big end of the lower bearing plate 3116 and the bookshelf is located on the same vertical axis as the hinge shaft of the bookshelf body, so that the bookshelf body 3111 rotates around the hinge shaft of the bookshelf body, and when the bookshelf rotates, the bookshelf body 3111 is overturned by the horizontal sliding pair between the roller on the bookshelf body 3111 and the U-shaped straight rail, and the bookshelf body 3111 is driven to turn back to the cavity of the cabinet body 312 after being overturned out from the cavity of the cabinet body 312.

As shown in fig. 7, the bookshelf body 3111, the upper roller 3112, the upper swing arm 3115 and the upper U-shaped straight rail 3113 form a swing link slider mechanism, and similarly, the bookshelf body 3111, the lower bookshelf swing arm 3118, the lower roller 3119 and the lower U-shaped straight rail 3120 form the same swing link slider mechanism, in which the bookshelf body 3111 is a shortest rod in the mechanism and can rotate in a whole circle, the open surface of the bookshelf coincides with the opening of the bookshelf body 312 when the bookshelf body 3111 is at the initial position a in fig. 7, the bookshelf body 3111 rotates clockwise from the position a through the positions b, c and d and finally returns to the interior of the cabinet for 180 degrees, and the surface of the bookshelf body 3111 faces the interior of the cabinet, and the corresponding movement of the upper swing arm 3115 is indicated by a thin arrow in the figure.

As shown in fig. 5 and 8, the folding desk 315 includes a desk body 3151, a leg blocking lever 3152, four leg supporting levers 3153, a narrow leg 3154, a wide leg 3155, four leg shoes 3156, four long compression springs 3157, and two locking pin assemblies.

The side edge of the table body 3151 along the length direction is a long side beam, the upper ends of the narrow table leg 3154 and the wide table leg 3155 are respectively hinged with the two ends of the table body 3151 along the long side beam, the inner side surfaces of the middle parts of the narrow table leg 3154 and the wide table leg 3155 are provided with leg bar-shaped cavities, and each leg bar-shaped cavity of the narrow table leg 3154 and the wide table leg 3155 passes through a table leg sliding shoe 3156 and a table leg supporting rod 3153 and then is hinged with the table body 3151 in a sliding way to form a table leg sliding hinge pair; specifically, the table leg sliding shoes 3156 are slidably embedded in the leg bar-shaped cavities, one end of the table leg supporting rod 3153 is hinged to the table leg sliding shoes 3156, the other end of the table leg supporting rod 3153 is hinged to the lower surface of the table body 3151 close to the middle panel, four table leg sliding shoes 3156 are arranged in total, and the four table leg sliding shoes 3156 are respectively connected with the leg bar-shaped cavities of the narrow table legs 3154 and the wide table legs 3155 in a sliding manner; the narrow table leg 3154 and the wide table leg 3155 are driven to rotate relative to the table body 3151 by the table leg sliding hinge pair, so that the narrow table leg 3154 and the wide table leg 3155 can be folded or unfolded.

The upper parts of the strip-shaped cavities of the leg parts of the four table legs are provided with fixed baffles, when the table legs at two sides are opened, the table leg supporting rods 3153 pull the table leg sliding shoes 3156 to slide upwards to the baffles, so that the two table legs are in an outer splayed shape to stably support the table top, otherwise, when the table legs at two sides are retracted into the table, the table leg supporting rods 3153 push the table leg sliding shoes 3156 to slide downwards until the table legs at two sides are completely hidden in the abdomen of the table body 3151.

The two long side beams at two sides of the table body 3151 are both provided with an inner cavity, two long pressure springs 3157 are installed in the inner cavity of each long side beam, the two long pressure springs 3157 are symmetrically distributed in the inner cavity of the long side beam along the length direction, the end parts of two ends of the table leg stop lever 3152 extend into the inner cavities of the two long side beams at two sides of the table body 3151 respectively and are positioned between the two long pressure springs 3157, the end part of one end of the table leg stop lever 3152 is arranged between the end parts, close to each other, of the two long pressure springs 3157 in the same long side beam, and the end parts, far away from each other, of the two long pressure springs 3157 in the same long side beam are fixedly connected with the inner cavity; two ends of the desk leg stop lever 3152 are both provided with T-shaped pieces, the middle end of each T-shaped piece is coaxially connected with the desk leg stop lever 3152, and two branch ends of each T-shaped piece are respectively sleeved in two long pressure springs 3157 in the same long side beam; the leg stopper 3152 is used to move out of the way when the narrow leg 3154 and the wide leg 3155 are contracted and folded, and to prevent them from being turned out after being stored. In specific implementation, the lengths of the narrow table leg 3154 and the wide table leg 3155 are both longer than half of the long side beam of the table body 3151, and when the narrow table leg 3154/the wide table leg 3155 are close to the table body 3151 after being overturned, the table leg blocking rod 3152 is elastically moved to enable the narrow table leg 3154/the wide table leg 3155 to be collected into the table body 3151; as shown in fig. 3, when the two legs are located in the abdomen of the table body 3151, the leg blocking bar 315 is located at the center of the table body 3151 under the pressure of the long compression springs 3157 on both sides to prevent the legs from being opened accidentally, and when the legs on one side are to be opened, the leg blocking bar 315 can be pulled toward the other side, and vice versa.

Two short side beams of the desk body 3151 are respectively provided with a locking sliding pin assembly at the other end far away from the hinge point between the folding desk 315 and the cabinet body 312, each locking sliding pin assembly comprises a locking shell 3158, a locking plate 3159, a small compression spring 31510 and a sliding pin 31511, the locking shell 3158 is fixedly arranged in the short side beam of the desk body 3151 in a penetrating way along the direction parallel to the long side beam of the desk body 3151, the sliding pin 31511 is arranged in the locking shell 3158 in a penetrating way and is coaxially and slidably connected with the locking shell 3158, the outer end of the locking shell 3158 is provided with an inner flange, the inner end of the sliding pin 31511 is provided with a shaft shoulder, a small compression spring 31510 is respectively arranged between the inner end flange of the locking shell 3158 and the shaft shoulder of the sliding pin 31511 positioned in the locking shell 3158, the small compression spring 31510 is sleeved outside the sliding pin 31511, the pressure of the small compression spring 31510 forces the sliding pin 31511 to slide towards the interior of the desk body 3151, the locking plate 3159 and the end part of the, the locking plate 3159 is provided with an inner concave hook groove, and the inner concave hook groove of the locking plate 3159 is used for being matched and hooked with the desk hanging pin 314. When the folding desk 315 is hinged and turned up relative to the cabinet 312 and the tabletop of the folding desk 315 is attached to the cabinet 312, the desk hanging pin 314 is embedded in the inner concave hook groove of the locking plate 3159. As shown in fig. 3, when the folding desk 315 is turned up to the desk top to be attached to the cabinet 312, the locking plates 3159 on both sides of the desk body 3151 are pulled outwards and rotated to be locked with the desk hanging pins 314 on both sides of the cabinet 312, and when the external pulling force disappears, the pressure of the small pressure spring 31510 can prevent the locking plates 3159 from being loosened.

As shown in fig. 3, 5 and 9, each set of six-bar folding and unfolding mechanism 32 includes a cabinet-side carriage 321, a long swing arm 322, a short swing arm 323, a driving arm 324, an electric push rod tailstock 325, an electric push rod 326, a push rod head guide rail 327, a push rod head guide shoe 328, a short swing arm bracket 329 and a long swing arm bracket 3210; two parallel sliding grooves with two closed ends are formed in the side surface of the cabinet-side sliding frame 321, two rows of sliding shoes 313 vertically arranged on the outer surface of the side plate of the cabinet body 312 with the desk bookcase 31 are respectively embedded in the two sliding grooves and are connected in an up-and-down sliding manner to form an up-and-down sliding pair, and the cabinet-side sliding frame 321 is vertically installed on the outer surface of the side plate of the cabinet body 312 with the desk bookcase 31 through the up-and-down sliding pair; because the two ends of the sliding slot of the cabinet-side sliding frame 321 are provided with the fixed end plates, the cabinet body 312 cannot slip off from the cabinet-side sliding frame 321.

One end of the long swing arm 322 and one end of the short swing arm 323 are hinged with the outer side surface of the middle part and the upper end part of the cabinet side sliding frame 321 respectively, the other end of the short swing arm 323 and the long swing arm 322 are hinged with the lower end of the short swing arm support 329 and the long swing arm support 3210 respectively, the short swing arm 323 and the long swing arm 322 are crossed but not connected, the long swing arm support 3210 is fixed on the lower surface of the lower cross beam at the head side of the bed frame 1111, the short swing arm support 329 is fixed on the lower surface of the cross beam in the abdomen of the bed frame after being separated from the long swing arm support 3210 towards the bed interior direction, namely, the short swing arm support 329 is arranged closer to the bed interior direction than the long swing arm support 3210;

one end of a driving arm 324 is hinged with the middle part of the long swing arm 322, the other end of the driving arm 324 is hinged with one end of a push rod head guide shoe 328, a push rod head guide rail 327 and an electric push rod 326 are horizontally arranged on the inner side surfaces of the head side and the tail side of the bed side bracket assembly 1112, the extension directions of the push rods of the push rod head guide rail 327 and the electric push rod 326 are horizontally parallel to the length direction of the bed frame 1111, the push rod head guide shoe 328 is embedded on the push rod head guide rail 327 in a sliding mode to form sliding connection and can slide along the length direction of the bed frame 1111, the rod end of the electric push rod 326 is hinged with the other end of the push rod head guide shoe 328, the electric push rod 326 drives the push rod head guide shoe 328 to slide along the push rod head guide rail 327, the cabinet side sliding frame 321 is driven to rotate through the driving arm 324 and the long swing arm 322, and further drives the cabinet body 312 of the desk book cabinet 31 and the whole desk book 31 to rotate.

The push rod head guide 327 is fixed on the upper end of the inner side of the bed side bracket component 1112 close to the head of the bed, the tail of the electric push rod 326 is hinged with an electric push rod tail frame 325, and the electric push rod tail frame 325 is fixed on the lower surface of the bed frame 1111 of the bed tail side lower cross beam.

As shown in fig. 3, when the bookcase with tables 31 is in the vertical position, the pusher head guide shoe 328 is in the extreme position closest to the bed head, and when the electric push rod 326 retracts, the pusher head guide shoe 328 gradually moves towards the bed tail, as shown in fig. 10, the movement of the pusher head guide shoe 328 drives the six-rod folding and unfolding mechanism 32 to fold, so as to drive the bookcase with tables 31 to finally rotate counterclockwise by 270 degrees from the position a to the horizontal position in the abdomen of the bed body 11 through the positions b and c, and when passing through the position b, in order to further meet the space requirement hidden in the abdomen of the bed body 11, the bookcase with tables 31 needs to be horizontally pushed towards the bed head to the maximum limit.

As shown in fig. 3 and 4, each set of the head side driving sprocket boxes 112 includes a sprocket box 1121, and each set of the tail side driving sprocket boxes 117 also includes a sprocket box 1121; each sprocket box 1121 comprises a driving shaft sprocket 11211 and a sprocket box side plate 11213, the driving shaft sprocket 11211 is rotatably connected to the sprocket box side plate 11213, the driving shaft sprocket 11211 is coaxially connected with the output shaft of the universal joint transmission shaft 113, and the driving gear motor 114 operates to drive the driving shaft sprocket 11211 in the sprocket boxes 1121 of the head drive sprocket box 112 and the tail drive sprocket box 117 to rotate through the universal joint transmission shaft 113.

The sprocket box side plates 11213 are symmetrically arranged at left and right and are connected into a fixed frame by a plurality of connecting rods 11212 with a certain distance, and the driving shaft sprocket 11211 is positioned between the two sprocket box side plates 11213 and is close to the middle lower part of the small end.

The sprocket box 1121 further includes a chain guide limit plate 11214 and a sprocket box guide plate 11215, the chain guide limit plate 11214 is horizontal "L" shaped, the horizontal portion of the L-shaped chain guide limit plate 11214 is fixed to the upper portion between the two sprocket box side plates 11213 by a plurality of connecting rods 11212, the bent portion of the L-shaped chain guide limit plate 11214 faces the small end of the sprocket box side plate 11213 and is contained downward to the periphery of the drive shaft sprocket 11211, as shown in the enlarged view F1 and the a-direction view in fig. 4, a traveling passage allowing only the chain to bend downward from horizontal to vertical is formed between the lower edge face of the chain guide limit plate 11214 facing the drive shaft sprocket 11211 and the sprocket tooth grooves of the drive shaft sprocket 11211; as shown in an enlarged view F3 in fig. 4, two sprocket case guide plates 11215 are fixed to the outer side surfaces of the small ends of the two sprocket case side plates 11213, respectively.

A special-shaped driving chain 4 is arranged on the upper chain track 116 in a sliding way and serves as a bedside special-shaped driving chain, and after horizontally penetrating through the bedside driving chain wheel box 112, the bedside special-shaped driving chain winds around a driving shaft chain wheel 11211 passing through the bedside driving chain wheel box 112 and is vertically and downwards arranged; a special-shaped driving chain 4 is arranged on the lower chain track 115 in a sliding manner and serves as a bed tail special-shaped driving chain, and after the bed tail special-shaped driving chain horizontally penetrates through the bed tail driving chain wheel box 117, the bed tail special-shaped driving chain winds around a driving shaft chain wheel 11211 passing through the bed tail driving chain wheel box 117 and is vertically and downwards arranged;

as shown in an enlarged view F2 and a view in the direction a in fig. 4, the special-shaped drive chain 4 includes a special-shaped inner link plate 41 and a special-shaped outer link plate 42, the special-shaped inner link plate 41 and the special-shaped outer link plate 42 are assembled in sequence and alternately along the chain direction by a roller and a pin of a standard chain to form a chain, hook-shaped protrusions are formed on the outer circumferential side surface of the special-shaped outer link plate 42, the hook-shaped protrusions of each special-shaped outer link plate 42 are bent in one direction along the same direction, the hook-shaped protrusions are used for being matched with the upper barb convex plates 2111, and the bending direction of the hook-shaped protrusions is opposite to the bending direction of the upper barb convex plates 2111 so as to be hooked with each other; the hook-shaped bulges on the special-shaped outer chain plates 42 of the special-shaped driving chains 4 of the bed head special-shaped driving chain and the bed tail special-shaped driving chain are engaged and hooked with the upper barb convex plates 2111 of the chain supporting columns 211.

The two ends of the special-shaped inner chain plate 41 in the direction of the central lines of the two pin holes are both planes, the distance from the pin hole of the special-shaped inner chain plate 41 to the adjacent end face is half of the center distance of the two pin holes, the distance from the pin hole of the special-shaped inner chain plate 41 to one side face is smaller than the distance to the other side face and smaller than half of the center distance of the two pin holes, and an arc chamfer with the center on the central lines of the two pin holes is arranged between the side face with the small distance from the pin hole and the adjacent end face on the special-shaped inner chain plate 41; the distance from the pin hole of the special-shaped outer chain plate 42 to the adjacent end face is smaller than half of the center distance of the two pin holes, the distance from the pin hole of the special-shaped outer chain plate 42 to the two side faces is the same as that of the special-shaped inner chain plate 41, a hook-shaped bulge with the opening direction consistent with the direction of the center lines of the two pin holes is arranged on the side face, which is far away from the pin hole, of the special-shaped outer chain plate 42, and the special-shaped inner chain plate 41 and the special-shaped outer chain plate 42 can be bent unidirectionally only towards one side, which is not provided with.

As shown in fig. 4, the profiled drive chain 4 penetrates into the bed tail drive sprocket box 117 through the upper surface of the lower chain rail 115 or the bed head drive sprocket box 112 through the upper surface of the upper chain rail 116, and the hook-shaped protrusion on the profiled outer link plate 42 faces upward and the opening faces toward the sprocket box 1121 at the outer end of the rail when the profiled drive chain 4 is on the rail; after passing through the sprocket box 1121, the special-shaped drive chain 4 is turned to be in a vertical downward direction, as shown in an enlarged view in fig. 2, the special-shaped outer chain plate 42 at the head of the special-shaped drive chain 4 is hinged to the bottom of the chain support pillar 211, and simultaneously, the hook-shaped protrusion on the special-shaped outer chain plate 42 is meshed with the upper barb convex plate 2111 at the bottom of the chain support pillar 211, and meanwhile, the lower end face of the special-shaped inner chain plate 41 at the head of the special-shaped drive chain 4 is contacted and abutted to the bottom of the chain support pillar 211; the profiled drive chains 4 are all in contact with each other and against each other at the vertical section from the head to the sprocket box 1121, and the hook-shaped protrusions on all the profiled outer link plates 42 are engaged with the upper barb convex plates 2111 on the chain supporting columns 211, which makes the profiled drive chain 4 below the sprocket box 1121 a stand column which can resist pressure and prevent toppling, so that when the drive shaft sprocket 11211 rotates towards the outside of the lifting bed 1, the lifting bed 1 can be driven to lift upwards by the mutual supporting force of the profiled inner link plates 41 below the sprocket box 1121.

As shown in an enlarged view F3 in FIG. 4, the sprocket box 1121 of the bedside drive sprocket box 112 or the sprocket box 117 of the bedside drive sprocket box 117 extends into the cavity of the adjacent chain support guide post 21, and the sprocket box guide plates 11215 on the outer side surfaces of the small ends of the two sprocket box side plates 11213 of the sprocket box 1121 are respectively connected with the two inner side walls of the cavity of the guide post 212 on the deeper side of the opening, so that the lifting bed 1 can be lifted smoothly due to the guiding action of the guide post 212.

The specific implementation process of the invention is as follows:

as shown in fig. 1, when the room is used as a bedroom, the lifting bed 1 is on the ground, the bookcase 31 with the desk is hidden in the abdomen of the lifting bed 1, the opening of the cabinet 312 faces the ground, the open surface of the bookcase 3111 faces the cabinet 312, and the folding desk 315 is attached to and locked on the cabinet 312 in a folded state. When the folding bedside backrest 12 is laid flat and the four driving shaft sprockets 11211 are simultaneously driven by the two driving gear motors 114 to rotate toward the outside of the lifting bed 1, the four driving shaft sprockets 11211 simultaneously drive the four profiled driving chains 4 to jack up the lifting bed 1 to move upward, and when the lifting bed 1 is raised to a height allowing people to freely pass through, the space originally occupied by the bed in the room is completely emptied. Further, when the electric push rod 326 extends outwards, the six-rod folding and unfolding mechanism 32 and the bookcase with desk 31 are driven to unfold downwards, just as from the position d to the position a shown in fig. 10, and the bookcase with desk 31 is in the vertical position and the opening of the cabinet body 312 faces the bed tail. Further, as shown in fig. 8, the leg blocking rods 3153 are respectively pulled open to both sides, the narrow legs 3154 and the wide legs 3155 are sequentially unfolded, then the locking plates 3159 on both sides of the desk body 3151 are pulled outwards and rotated to separate the locking plates 3159 from the desk hanging pins 314 on both sides of the cabinet 312, at this time, the folding desk 315 is turned over, the top surface of the folding desk 315 is flush with the upper surface of the bottom plate of the cabinet 312, the narrow legs 3154 and the wide legs 3155 are also firmly contacted with the ground, and finally, the two bookshelf bodies 3111 are rotated to make the open surfaces of the two bookshelf bodies 3111 face the outside of the cabinet 312. To this end, the bookcase and desk arrangement is completed, as shown in fig. 2, and the room is changed from a bedroom to a study. On the contrary, when the utility model is to be used as a bedroom again, the operation steps are opposite to the above, and it is worth noting that when the bookcase 31 with a desk is folded, since the open surface of the bookcase body 3111 rotates to form a closed space in the cabinet body 312, the book in the bookcase body 3111 does not need to be removed, and the bookcase functions really.

Claims

1. The utility model provides a bed book case integral type furniture in variable space which characterized in that:

comprises a lifting bed (1), a basic surrounding frame (2), a hidden bookcase table (3) and four special-shaped driving chains (4); the basic enclosing frame (2) is positioned at the periphery of four corners of the lifting bed (1) and is fixedly connected with the wall surface and the ground of a room, one ends of four special-shaped driving chains (4) are respectively arranged at two sides of the lifting bed (1) along the length direction of the lifting bed (1), the other ends of the special-shaped driving chains (4) are connected with the basic enclosing frame (2), and the lifting bed (1) is lifted up and down in the basic enclosing frame (2) by means of the four special-shaped driving chains (4); the hidden bookcase table (3) is arranged at the inner abdomen part of the lifting bed (1) close to the bedside, and when the lifting bed (1) is lifted, the hidden bookcase table (3) is turned and unfolded from the inner abdomen part of the lifting bed (1).

2. The variable-space bed-book integrated furniture as claimed in claim 1, wherein:

the lifting bed (1) comprises a bed body (11) and a movable bed head backrest (12), wherein the lower edge of the movable bed head backrest (12) is hinged with the upper edge of the bed head of the bed body (11);

the foundation enclosing frame (2) comprises four chain supporting guide columns (21) and a connecting frame (22), the four chain supporting guide columns (21) are respectively arranged on the outer sides of four corners of the bed body (11) and are vertically arranged, each chain supporting guide column (21) is fixedly embedded in a wall surface, the bottom surfaces of the four chain supporting guide columns (21) are fixedly connected with the ground, the connecting frame (22) is fixed at the top ends of the four chain supporting guide columns (21), and the lifting bed (1) is respectively connected with the four chain supporting guide columns (21) by means of four special-shaped driving chains (4) and ascends and descends along the vertical direction of the chain supporting guide columns (21);

the hidden bookcase table (3) comprises a bookcase with a table (31) and two sets of six-rod folding and unfolding mechanisms (32), the two sets of six-rod folding and unfolding mechanisms (32) are symmetrically arranged on two sides of the bookcase with a table (31), the upper end of each set of six-rod folding and unfolding mechanism (32) is connected in the abdomen of the bed body (11), the lower end of each six-rod folding and unfolding mechanism (32) is connected with the bookcase with a table (31), and the six-rod folding and unfolding mechanisms (32) drive the bookcase with a table (31) to be folded in the abdomen of the bed body (11) or unfolded below the outside of the bed body (11).

3. The variable-space bed-book integrated furniture as claimed in claim 2, wherein:

the bed body (11) comprises a bed body frame (111), two sets of bed head driving chain wheel boxes (112), four universal joint transmission shafts (113), two sets of driving speed reduction motors (114), two lower chain tracks (115), two upper chain tracks (116) and two sets of bed tail driving chain wheel boxes (117);

the bed body frame (111) comprises a bed frame (1111), two sets of bed side bracket assemblies (1112) and a bed tail ladder passageway frame (1113), a lower chain rail (115) and an upper chain rail (116) are arranged below crossbeams on two sides of the bed frame (1111), the rail directions of the lower chain rail (115) and the upper chain rail (116) are parallel to the length direction of the crossbeams on two sides of the bed frame (1111), the lower chain rail (115) is positioned below the upper chain rail (116), the lower chain rail (115) and the upper chain rail (116) are fixedly installed at the bottoms of the crossbeams of the bed frame (1111) through the bed side bracket assemblies (1112), the upper chain rail (116) extends into the bed head driving chain wheel box (112), and the lower chain rail (115) extends into the bed tail driving chain wheel box (117); two sets of bedside driving chain wheel boxes (112) are fixed on two bed legs at two sides of the bedside end of the bedstead (1111); the bed tail ladder aisle frame (1113) is fixed below the bed tail side of the bed frame (1111), and the two sets of bed tail driving chain wheel boxes (117) are fixed on the two sides of the bed tail ladder aisle frame (1113);

the two sets of driving reducing motors (114) are both double output shafts, the two sets of driving reducing motors (114) are respectively positioned at the head and tail of the bed frame (1111), one set of driving reducing motor (114) positioned at the head is positioned at the bottom surface of the bed frame (1111) between the two sets of head driving chain wheel boxes (112), and one set of driving reducing motor (114) positioned at the tail is arranged on the tail ladder passageway frame (1113) between the two sets of tail driving chain wheel boxes (117); output shafts at two ends of a set of driving speed reducing motors (114) positioned at the head of the bed are respectively and coaxially connected to input shafts of two head driving chain wheel boxes (112) at two sides of the head side end of the bed frame (1111) through respective universal joint transmission shafts (113), and output shafts at two ends of a set of driving speed reducing motors (114) positioned at the tail of the bed are respectively and coaxially connected to input shafts of two head driving chain wheel boxes (112) at two sides of a tail ladder passageway frame (1113) at the tail side end of the bed frame (1111) through respective universal joint transmission shafts (113); the motion and power of the two sets of driving reducing motors (114) are transmitted to a bedside driving chain wheel box (112) and a bed tail driving chain wheel box (117) which are positioned at the two sides of the bedside and the bed tail through universal joint transmission shafts (113) at the two sides.

4. The variable-space bed-book integrated furniture as claimed in claim 2, wherein:

chain support guide post (21) includes chain support post (211) and guide post (212), guide post (212) are vertical to be arranged, guide post (212) horizontal cross section is "H" shape that both sides opening degree of depth differs, shallow one side of guide post (212) opening and wall fixed connection, chain support post (211) fixed mounting is in guide post (212) opening degree of depth one side, and vertically arrange along being on a parallel with guide post (212), the width of chain support post (211) is less than guide post (212) open-ended width, chain support post (211) lateral surface all is equipped with two rows of barb structures of parallel along the both sides of vertical direction, every row of barb structure contains a plurality of last barb convex plate (2111) along vertical direction interval arrangement.

5. The variable-space bed-book integrated furniture as claimed in claim 2, wherein:

the bookcase with the desk (31) comprises two sets of rotary bookshelves (311), a cabinet body (312), eight sliding shoes (313), two desk hanging pins (314) and a folding desk (315); the cabinet body (312) is hinged on the folding desk (315), one corner of two short side edges of the folding desk (315) is hinged with the lower corner where the cabinet opening surfaces on two sides of the cabinet body (312) are positioned respectively, so that the desktop of the folding desk (315) can be turned to be coplanar with the upper surface of the bottom plate around the horizontal linear axis where the lower edge of the cabinet opening surface of the cabinet body (312) is positioned; the two sets of rotating bookshelves (311) are symmetrically arranged in the cabinet cavities at the two ends of the cabinet body (312), and the rotating bookshelves (311) can be horizontally turned 180 degrees around a vertical shaft and are arranged in the cabinet body (312); two rows of sliding shoes (313) which are arranged in parallel along the vertical direction are arranged on the outer surfaces of two side plates of the cabinet body (312), and two desk hanging pins (314) protrude out of two sides of the cabinet body (312);

the rotary bookshelf (311) comprises a bookshelf body (3111), an upper horizontal turnover assembly and a lower horizontal turnover assembly, wherein the bookshelf body (3111) is arranged in a cavity of the cabinet body (312), the upper horizontal turnover assembly and the lower horizontal turnover assembly are respectively arranged between the upper end and the lower end of the bookshelf body (3111) and the cabinet body (312), and the bookshelf body can be horizontally and reversely arranged in the cavity of the cabinet body (312) through the upper horizontal turnover assembly and the lower horizontal turnover assembly;

the upper horizontal overturning assembly comprises an upper roller (3112), an upper U-shaped straight rail (3113), an upper fixed shaft fastener (3114) and an upper bookshelf swing arm (3115); the upper roller (3112) is convexly and hingedly arranged on one side of the upper surface of the bookshelf body (3111), the upper U-shaped straight rail (3113) is embedded and fixed in the middle of a top plate of the cabinet cavity of the cabinet body (312), and the upper roller (3112) is embedded in the upper U-shaped straight rail (3113) and is connected in a sliding manner to form a horizontal sliding pair; an upper fixed shaft fastener (3114) is arranged at one end of the upper U-shaped straight rail (3113) close to the middle of the cabinet body (312), the upper fixed shaft fastener (3114) is fixed on the bottom surface of a top plate of a cabinet cavity of the cabinet body (312), one end of an upper swing arm (3115) of the bookshelf is hinged with the upper fixed shaft fastener (3114), and the other end of the upper swing arm is hinged in the middle of the upper surface of the bookshelf body (3111) to form a connecting rod hinge pair;

the lower horizontal overturning assembly comprises a lower roller (3119), a lower U-shaped straight rail (3120), a lower fixed shaft fastener (3121), a bookshelf lower swing arm (3118), a lower bearing plate (3116) and a plurality of bearing balls (3117); the lower roller (3119) is convexly hinged to one side of the lower surface of the bookshelf body (3111), the lower U-shaped straight rail (3120) is embedded and fixed in the middle of the bottom plate of the cabinet cavity of the cabinet body (312), and the lower roller (3119) is embedded in the lower U-shaped straight rail (3120) and is connected in a sliding manner to form a horizontal sliding pair; lower U-shaped straight rail (3120) are equipped with down fixed axle fastener (3121) in the one end department that is close to cabinet body (312) middle part, lower fixed axle fastener (3121) are fixed in cabinet body (312) cabinet chamber bottom plate top surface, the centre of bookshelf body (3111) lower surface is fixed with down bearing dish (3116), lower bearing dish (3116) lower surface rolls and is equipped with a plurality of bearing ball (3117), the one end of bookshelf lower swing arm (3118) is articulated with lower fixed axle fastener (3121), the other end articulates in lower bearing dish (3116), form the connecting rod hinge pair.

6. The variable-space bed-book integrated furniture as claimed in claim 5, wherein:

the folding desk (315) comprises a desk body (3151), desk leg blocking rods (3152), four desk leg supporting rods (3153), narrow desk legs (3154), wide desk legs (3155), four desk leg sliding shoes (3156), four long compression springs (3157) and two locking sliding pin assemblies; the upper ends of the narrow table legs (3154) and the wide table legs (3155) are respectively hinged with two ends of the table body (3151) along the long side beam, the inner side surfaces of the middle parts of the narrow table legs (3154) and the wide table legs (3155) are provided with leg bar-shaped cavities, and each leg bar-shaped cavity of the narrow table legs (3154) and the wide table legs (3155) passes through a table leg sliding shoe (3156) and a table leg support rod (3153) and then is hinged with the table body (3151) in a sliding way to form a table leg sliding hinge pair; two long side beams at two sides of the table body (3151) are both provided with an inner cavity, two long compression springs (3157) are arranged in the inner cavity of each long side beam, and the end parts of two ends of the table leg blocking rod (3152) respectively extend into the inner cavities of the two long side beams at two sides of the table body (3151) and are positioned between the two long compression springs (3157);

two short side beams of the desk body (3151) are respectively provided with a lock catch sliding pin component at the other end far away from the hinged point between the folding desk (315) and the cabinet body (312), each lock catch sliding pin component comprises a lock catch shell (3158), a lock catch plate (3159), a small pressure spring (31510) and a sliding pin (31511), the lock catch shell (3158) is fixedly arranged in the short side beams of the desk body (3151) in a penetrating way along the direction parallel to the long side beams of the desk body (3151), the sliding pin (31511) penetrates through the lock catch housing (3158) and is coaxially and slidably connected with the lock catch housing (3158), a small pressure spring (31510) is arranged between an inner flange of the outer end of the lock catch housing (3158) and a shaft shoulder of the sliding pin (31511) positioned in the lock catch housing (3158), the small pressure spring (31510) is sleeved outside the sliding pin (31511), and the end parts of the lock catch plate (3159) and the sliding pin (31511) extending out of the short side beam of the table body (3151) are hinged and rotate on the two short side surfaces of the table body (3151).

7. The variable-space bed-book integrated furniture as claimed in claim 6, wherein:

t-shaped pieces are arranged at two ends of the table leg stop lever (3152), the middle end of each T-shaped piece is coaxially connected with the table leg stop lever (3152), and two branch ends of each T-shaped piece are respectively sleeved in the two long pressure springs (3157).

8. The variable-space bed-book integrated furniture as claimed in claim 2, claim 3 and claim 5, wherein:

each set of the six-rod folding and unfolding mechanism (32) comprises a cabinet-side sliding frame (321), a long swing arm (322), a short swing arm (323), a driving arm (324), an electric push rod (326), a push rod head guide rail (327), a push rod head guide shoe (328), a short swing arm support (329) and a long swing arm support (3210); two parallel sliding grooves are formed in the side surface of the cabinet side sliding frame (321), two lines of sliding shoes (313) which are vertically arranged on the outer surface of the side plate of the cabinet body (312) of the bookcase with the desk (31) are respectively embedded in the two sliding grooves and are connected in a vertical sliding mode to form vertical sliding pairs, and the cabinet side sliding frame (321) is vertically installed on the outer surface of the side plate of the cabinet body (312) of the bookcase with the desk (31) through the vertical sliding pairs;

one end of a long swing arm (322) and one end of a short swing arm (323) are respectively hinged with the middle part and the outer side surface of the upper end part of a cabinet side sliding frame (321), the other end of the short swing arm (323) and the other end of the long swing arm (322) are respectively hinged with the lower ends of a short swing arm support (329) and a long swing arm support (3210), the short swing arm (323) and the long swing arm (322) are mutually crossed but not connected, the long swing arm support (3210) is fixed on the lower surface of a lower cross beam at the bedside side of the bed frame (1111), and the short swing arm support (329) is fixed on the lower surface of the abdomen of the bed frame (1111) after being separated from the long swing arm support (3210) towards the bed inner direction;

one end of a driving arm (324) is hinged with the middle part of the long swing arm (322), the other end of the driving arm (324) is hinged with one end of a push rod head guide shoe (328), a push rod head guide rail (327) and an electric push rod (326) are horizontally arranged on the side surfaces of the head side and the tail side of the bed side bracket assembly (1112), the push rod head guide shoe (328) is embedded on the push rod head guide rail (327) in a sliding mode to form sliding connection and can slide along the length direction of the bed frame (1111), the rod end of the electric push rod (326) is hinged with the other end of the push rod head guide shoe (328), the electric push rod (326) operates to drive the push rod head guide shoe (328) to slide along the push rod head guide rail (327), and the cabinet side sliding frame (321) is driven to rotate by the driving arm (324) and the long swing arm (322).

9. The variable-space bed-book integrated furniture as claimed in claim 3, wherein:

each set of the head side driving chain wheel box (112) comprises a chain wheel box (1121), and each set of the tail side driving chain wheel box (117) also comprises a chain wheel box (1121); each chain wheel box (1121) comprises a driving shaft chain wheel (11211) and a chain wheel box side plate (11213), the driving shaft chain wheel (11211) is rotatably connected to the chain wheel box side plate (11213), and the driving shaft chain wheel (11211) is coaxially connected with an output shaft of the universal joint transmission shaft (113);

a special-shaped driving chain (4) is arranged on the upper chain track (116) in a sliding way and serves as a bedside special-shaped driving chain, and after horizontally penetrating through the bedside driving chain wheel box (112), the bedside special-shaped driving chain winds around a driving shaft chain wheel (11211) passing through the bedside driving chain wheel box (112) and is vertically and downwards arranged; a special-shaped driving chain (4) is arranged on the lower chain track (115) in a sliding mode and serves as a bed tail special-shaped driving chain, and after the bed tail special-shaped driving chain horizontally penetrates through the bed tail driving chain wheel box (117), the bed tail special-shaped driving chain winds around a driving shaft chain wheel (11211) passing through the bed tail driving chain wheel box (117) and is arranged vertically downwards;

the special-shaped driving chain (4) comprises a special-shaped inner chain plate (41) and a special-shaped outer chain plate (42), the special-shaped inner chain plate (41) and the special-shaped outer chain plate (42) are sequentially and alternately assembled along the chain direction through a roller and a pin shaft of a standard chain to form a chain, and the peripheral side face of the special-shaped outer chain plate (42) is provided with a hook-shaped bulge; the hook-shaped bulges on the special-shaped outer chain plates (42) of the special-shaped driving chains (4) of the bed head special-shaped driving chain and the bed tail special-shaped driving chain are meshed and hooked with the chain supporting guide columns (21).

10. The variable-space bed-book integrated furniture as claimed in claim 4 or 9, wherein:

the hook-shaped protrusions of the special-shaped outer chain plates (42) are bent in one direction, the hook-shaped protrusions are used for being matched with the upper barb convex plates (2111), and the bending direction of the hook-shaped protrusions is opposite to that of the upper barb convex plates (2111) so that the hook-shaped protrusions are hooked with each other.