CN113749408A

CN113749408A - Rest bed

Info

Publication number: CN113749408A
Application number: CN202111116678.2A
Authority: CN
Inventors: 杨于新
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-07

Abstract

A rest bed is formed by a table top of an integrated table and chair positioned in front and a chair seat plate and a backrest plate of the integrated table and chair positioned behind in front and rear integrated table and chair which are adjacently arranged in front and behind, the integrated table and chair of the front and rear integrated table and chair comprises a common bottom leg of the table and the chair, a chair supporting leg is arranged in front of the bottom leg, a table supporting leg is arranged behind the bottom leg, the chair supporting leg is used for supporting the chair seat plate, the table supporting leg is used for supporting the desk plate, the backrest plate which can adjust the angle relative to the chair seat plate is connected behind the chair seat plate, and at least one of the chair supporting leg and the table supporting leg is arranged to be adjusted in a lifting way; the desk plate of the desk positioned in the front and the chair plate of the chair adjacent to the desk and positioned at the back form the rest bed together with the backrest plate of the chair plate which is inclined backwards by the angle adjustment.

Description

Rest bed

Technical Field

The invention relates to a rest bed with variable desks, chairs and chairs.

Background

Students often need to have a lunch break at school to ensure that they have sufficient energy to learn in the afternoon. The traditional mode is that noon break directly lies prone on the desk, then lie prone on the desk and can influence noon break quality. Therefore, the folding lunch break bed arranged on the wall of the classroom is invented by someone, the folding lunch break bed mainly comprises a vertical cabinet, a plurality of folding bed boards are arranged in the vertical cabinet, when the folding bed boards are not used, the folding bed boards are folded into each other and then are put into the vertical cabinet, when the folding bed boards are used, the folding bed boards are pulled out and unfolded outwards to be in a flat state, the vertical cabinet occupies the inner space of the classroom, and the lunch break demand of all students cannot be met. Therefore, people invent a simple lunch break bed formed by deforming the structure of desk and chair, but the existing desk and chair are in split structure, the combination of desk and chair is only arranged in parallel, the desk and chair are not connected, or the connection reliability is poor, students are easy to fall down when sleeping on the desk, the safety is poor, in addition, the desk and chair cannot reach the same plane (usually, the desk top is rotated and inclined downwards) even if the desk and chair are deformed and combined, and the comfort of the students is poor.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a rest bed with integrated front chair and back table, wherein the chair is arranged in front, the desk is arranged in back, the front chair and the back table are connected into a whole, the heights of the chair seat plate and the desk plate and the inclination of the back rest plate are adjusted, so that the rest bed is convenient for students to have a lunch break, is safe and reliable, is comfortable for the students to sleep, and reasonably utilizes the space in a classroom.

The technical scheme of the rest bed of the invention is as follows: the rest bed is formed by a tabletop of the integrated table and chair positioned in the front and a seat plate and a backrest plate of a chair of the integrated table and chair positioned at the back in front and back adjacent front and back desk integrated table and chair, the integrated table and chair comprises a common bottom leg for the table and the chair, a chair supporting leg is arranged in front of the bottom leg, a table supporting leg is arranged at the back of the bottom leg, the chair supporting leg is used for supporting the seat plate, the table supporting leg is used for supporting the table plate, the backrest plate capable of adjusting the angle relative to the seat plate is connected at the back of the seat plate, and at least one of the chair supporting leg and the table supporting leg is arranged to be capable of being adjusted in height in a lifting mode; the table board of the table positioned in front and the seat board of the chair adjacent to the table and positioned behind form the rest bed together with the backrest board of the seat board inclined backwards through adjusting the angle after the height of the backrest board is adjusted, the table board of the table positioned in front and the seat board of the chair adjacent to the table and positioned behind are basically coplanar after the height of the backrest board is adjusted, and the basically coplanar refers to the fact that the table board and the seat board are in the same plane or the table board is slightly higher than the seat board or the seat board is slightly higher than the table board.

The invention discloses a rest bed, which is formed by adjusting the height of at least one of a desk board and a chair board to make the desk board and the chair board basically coplanar (the desk board and the chair board used by the same person are adjusted to be basically coplanar) and inclining a backrest board. The chair and chair rest bed keeps the manufacturing and using effects of the original chair and table, and the chair positioned in the front and the desk positioned behind are connected into a whole through the bottom feet to form a desk and chair of a front chair and a back desk. When the desk and chair are used, the desk plate with the desk and chair placed in front is adjusted to the normal use height, the chair seat plate with the desk and chair placed behind is adjusted to the normal chair height, and the backrest plate is adjusted to be in a vertical or slightly backward inclined state; when the rest bed is used, the rest bed is composed of front chair and rear table integrated tables and chairs which are adjacently arranged in front and back, and is a plurality of integrated tables and chairs which are arranged in a classroom in front and back, each integrated table and chair is arranged in the form of a front chair and rear table, when a person uses the rest bed, two integrated tables and chairs are involved, for example, when the rest bed is used, a table plate of the front integrated table and chair and a chair seat plate and a backrest plate of the rear integrated table and chair are used, the table plate of the front table and chair (the front side where a human body is located) is descended, or the chair seat plate of the rear table and chair (the rear side where the human body is located) is ascended, or the table plate of the front table and chair and the chair seat plate of the rear table and chair are ascended simultaneously to enable the two to be close to or to be basically coplanar, the basic coplanarity is that the table plate and the chair seat plate are on the same plane or the same height of the table plate is slightly higher than the height of the chair seat plate or the height of the chair seat plate is slightly higher than the table plate, when a human body lies on the back, the buttocks and the waist and the back are in flat lying or equal height cambered surface transition and comfortable, and the legs and the buttocks can be slightly higher or slightly lower without great influence, so that a table plate for placing legs and a chair seat plate for placing the buttocks can have slight height difference, and can be basically coplanar, then the back rest plate is inclined backwards or flatly placed to form a rest bed, the buttocks of the human body is seated on the chair seat plate of a back desk and chair, the head of the waist and the back rest is leaned on the back rest plate in an inclined state, the front and the back can be combined for use, the two feet extend from the table plate after the front desk and chair is descended, a foot placing space is formed between the back rest plate and the table plate in the inclined state of the front desk and chair, the two feet can extend into the space, the two feet are downward, the back and the head of the front person are used in a three-dimensional manner, the space of a classroom is fully utilized, the occupation contradiction between a classroom field and a noon rest bed is solved, and the feet do not need to move, or the distance between the front desk and the rear desk can be slightly adjusted forwards and backwards, and the dual-purpose of the desk and the resting bed can be achieved only by adjusting the height of the desk and the chair and the inclination of the backrest plate. When the human body lies on the backrest plate, downward acting force (gravity) is downward acting force, the downward acting force is backward inclining force, the whole table and chair can be inclined backwards to stop inclining, the technical scheme moves the bottom feet backwards, the backrest plate is in an upper and lower symmetrical state with the positions of the bottom feet when inclined, the bottom feet are enabled to increase the supporting force for backward inclining of the table and chair, the supporting force and the backward inclining force are mutually confronted to obtain balance, the use of the table and chair is enabled to be stable and safe, meanwhile, the chair is suitable for being arranged at the rear head of the chair, the backward moving bottom feet are reasonably utilized, the front and rear length of the table and chair is not enabled to be too large, and the placing in a classroom is facilitated. The combination of the front chair and the rear desk is integrated, so that the problem that the student chair and the desk are inconvenient for noon break is thoroughly solved, the use safety problem existing when the combination of the student chair and the desk is converted into a rest bed is thoroughly solved, the combination innovation of facilities for student study and rest at a school is realized, the design thought of the traditional desk and the chair is broken, the structure of the existing desk and the chair is changed, the desk and the chair generate new functions and effects, the problem that the classroom configuration student noon break bed is urgently needed to be solved by the current education department is also solved, and a reasonable and practical noon break bed combining the desk and the chair is provided for a school.

The invention relates to a rest bed, wherein a headrest is connected to a backrest plate.

The upper back board and the lower back board are connected in a folding or telescopic way.

The folding connection is a hinge, and the upper back board is connected with the lower back board in a folding way through the hinge.

The telescopic connection comprises an insertion pipe connected below the last backboard, a pipe sleeve connected on the rear side of the next backboard, the insertion pipe is connected with the pipe sleeve in an insertion mode, pin holes are formed in the side wall of the pipe sleeve, adjusting holes are formed in the side wall of the insertion pipe, and the pins penetrate through the pin holes to be matched with the adjusting holes.

The lifting height-adjusting chair supporting leg and the lifting height-adjusting table supporting leg are composed of an upper rod and a lower rod respectively, a lifting mechanism is arranged in the upper rod and the lower rod of the lifting height-adjusting table supporting leg and the lifting height-adjusting chair supporting leg, the lifting mechanism comprises a gear box, the gear box is fixed with the lower rod or the upper rod, a transverse bevel gear and a vertical bevel gear are arranged in the gear box, the transverse bevel gear is meshed with the vertical bevel gear, the transverse bevel gear is connected with a lead screw, a nut is arranged on the lead screw, the nut is fixed with the upper rod or the lower rod, a rocker is arranged in the vertical bevel gear, and one end of the rocker is connected with a crank or a motor.

The chair seat plate is connected with a backrest plate capable of adjusting the angle relative to the chair seat plate, an inclined connecting mechanism is arranged between the chair seat plate and the backrest plate, the inclined connecting mechanism comprises a support arranged below the chair seat plate, an inclined gas spring is arranged in the support, one end of the inclined gas spring is rotatably connected with the support through a first rotating shaft, the other end of the inclined gas spring is connected with a second rotating shaft, swing limiting grooves are formed in the front side and the rear side of the support, the second rotating shaft is matched with the swing limiting grooves, an inclined swing seat is connected below the backrest plate, the upper portion of the inclined swing seat is rotatably connected with the support through a third rotating shaft, and the lower portion of the inclined swing seat is fixedly connected with the second rotating shaft.

The chair seat plate is connected with a back board which can adjust the angle relative to the chair seat plate at the back, an inclined connecting mechanism is arranged between the chair seat plate and the back board, the inclined connecting mechanism comprises a connecting support rod on the chair seat plate, a clamping pin is arranged on the support rod, a handrail is connected on the back board, the handrail is rotationally connected with the back board through a pin, an adjusting groove is arranged below the handrail, and the adjusting groove is matched with the clamping pin.

Drawings

FIG. 1 is a schematic diagram of a student learning state structure of a rest bed of the present invention;

FIG. 2 is a schematic view of the structure of the noon break state of the student of the rest bed;

FIG. 3 is a schematic view of a rest bed with the tilt linkage mechanism being a tilt gas spring and the lifting mechanism being a lift gas spring;

FIG. 4 is a schematic structural view showing a state that an upper back board and a lower back board of a rest bed are connected through a hinge;

FIG. 5 is a schematic view of the inclined connecting mechanism of the back board in a state of the armrest and the support rod being engaged with each other;

FIG. 6 is a schematic view of the backrest plate in a tilted state via the armrests and the supporting rods;

FIG. 7 is a schematic view of the back board in a flat state via the armrests and the supporting rods;

FIG. 8 is a schematic structural view showing the telescopic engagement of the upper and lower back boards;

FIG. 9 is a schematic view of the structure of the lifting mechanism in a state of the gear box, the lead screw, the nut, the rocker and the rocking handle being matched.

Detailed Description

The invention relates to a rest bed, as shown in figures 1-9, the rest bed is formed by a table top of an integral table and chair positioned in front and a chair seat plate and a backrest plate of the integral table and chair positioned behind in front and rear integrated table and chair which are adjacently arranged, the integral table and chair positioned in front comprises a bottom leg 1 shared by the table and the chair, a chair supporting leg 2 is arranged in front of the bottom leg, a table supporting leg 3 is arranged behind the bottom leg, the chair supporting leg is used for supporting a chair seat plate 4, the table supporting leg is used for supporting a table plate 5, the backrest plate 41 capable of adjusting the angle relative to the chair seat plate is connected behind the chair seat plate 4, and at least one of the chair supporting leg 2 and the table supporting leg 3 is arranged to be capable of adjusting the height in a lifting way; the table 5 of the table in front and the seat plate 4 of the chair adjacent to the table and at the back form the rest bed together with the backrest plate of the seat plate 4 inclined backwards through adjusting the height, the table 5 of the table in front and the seat plate 4 of the chair adjacent to the table and at the back are basically coplanar after adjusting the height, the basically coplanar refers to the table 5 and the seat plate 4 being in the same plane or the table 5 being slightly higher than the seat plate 4 or the seat plate 4 being slightly higher than the table 5. The chair rest bed keeps the manufacturing and using effects of the original chair and table, and a chair positioned in front and a desk positioned behind are connected into a whole through feet 1 to form a desk and a table of a front chair and a back table. When the desk and chair are used, the desk plate 5 with the desk and chair placed in front is adjusted to the normal use height, the chair seat plate 4 with the desk and chair placed behind is adjusted to the normal chair height, and the backrest plate is adjusted to be vertical or slightly inclined backwards; when the rest bed is used, the front-chair back-table integrated table and chair which are adjacently arranged in front and back of the rest bed is a plurality of integrated table and chairs which are arranged in a classroom in front and back, each integrated table and chair is arranged in the form of a front-chair back table, two integrated table and chairs are involved when one person uses the rest bed, for example, when the rest bed is used, the table plate 5 of the front integrated table and chair and the chair seat plate 4 and the backrest plate 41 of the back integrated table and chair are used, and the rest bed can be adjusted through the following steps: 1. adjusting the height of at least one of the tabletop or the chair surface to enable the two surfaces to be at the same height; 2. adjusting the backrest plate (chair back) to incline or level; 3. the surface of the rest bed is formed by the table top, the chair surface and the backrest plate. The specific operation method comprises the following steps: the desk plate 5 of the front desk and chair (referring to the front where the human body is located) is descended, or the seat plate 4 of the back desk and chair (referring to the back where the human body is located) is ascended, or the desk plate 5 of the front desk and chair plate 4 of the back desk and chair are ascended at the same time, so that the desk plate and the chair plate are close to or almost coplanar, the basic coplanarity means that the desk plate and the chair plate are on the same plane or the desk plate is slightly higher than the chair plate or the chair plate is slightly higher than the chair plate, because when the human body lies on the back, the transition of the hip and the waist back is in a flat lying or equal cambered surface is more comfortable, the influence of the leg and the hip is slightly higher or lower, so that the height difference between the desk plate of the leg placing foot and the chair plate placing the hip can be slightly higher, the basic coplanarity can be achieved, then the back rest bed is formed by inclining backwards or flatly placing the back plate 41, the hip of the human body is seated on the seat plate 4 of the back desk and chair, the head of the waist and the back lean against the backrest plate 41 in the inclined state, the front and the back can be combined for use, the two feet extend onto the table plate 5 after the front table and the chair descend, a space for placing the feet is arranged between the backrest plate 41 in the inclined state of the front table and the chair and the table plate 5, the two feet can extend into the space, the two feet are arranged below, the back and the head of the front person are used in a three-dimensional mode, the space of a classroom is fully utilized, the occupation contradiction between a classroom field and a noon break bed is solved, the movement is not needed, or the distance between the front table and the back table can be slightly adjusted front and back, and the dual purposes of the table and the rest bed can be achieved only by adjusting the height of the table and the inclination of the backrest plate. When a human body lies on the backrest plate 41, downward acting force (gravity) is downward acting force, and the downward acting force is backward tilting force, so that the whole table and chair can be tilted straight to stop tilting. The combination of the front chair and the rear desk is integrated, so that the problem that the student chair and the desk are inconvenient for noon break is thoroughly solved, the use safety problem existing when the combination of the student chair and the desk is converted into a rest bed is thoroughly solved, the combination innovation of facilities for student study and rest at a school is realized, the design thought of the traditional desk and the chair is broken, the structure of the existing desk and the chair is changed, the desk and the chair generate new functions and effects, the problem that the classroom configuration student noon break bed is urgently needed to be solved by the current education department is also solved, and a reasonable and practical rest bed combining the desk and the chair is provided for a school.

In this embodiment, the backrest plate 41 is connected to a headrest 42. With the headrest 42, when a student has a rest, the student can put the headrest on the headrest 42 more comfortably, and when the student normally goes to a class, the headrest 42 can be detached through the buckle (the specific structure of the buckle is the prior art), or the headrest 42 can be rotated downwards through the hinge (the specific structure of the hinge is the prior art), so that the visual field of the student in the back row is prevented from being influenced.

In this embodiment, a stopper 6 is provided between the back plate 41 and the desk. Preventing the backboard 41 from pressing against both feet. The limiting part 6 comprises a supporting plate, a rod, a block and the like, an upper backrest plate and a lower desk (comprising a desk plate, a desk supporting leg and the like, and a book hopper can be arranged below the desk plate in an actual product).

In this embodiment, the back boards 41 are two upper and lower back boards, and the two upper and lower back boards are connected in a folding or telescopic manner. The overall length of the backboard 41 is prolonged to meet the needs of human body.

The folding connection is a hinge 50, and the upper back board 41 is connected with the lower back board in a folding way through a hinge.

The telescopic connection comprises an inserting pipe 43 connected below the upper back board 41, a pipe sleeve 44 connected on the rear side of the lower back board, the inserting pipe is connected with the pipe sleeve in an inserting mode, pin holes 45 are formed in the side wall of the pipe sleeve, adjusting holes 46 are formed in the side wall of the inserting pipe, and pins 47 penetrate through the pin holes to be matched with the adjusting holes.

In this embodiment, the lifting chair support legs 2 and the lifting table support legs 3 are respectively composed of an upper rod 11 and a lower rod 12, and lifting mechanisms are arranged in the upper rod 11 and the lower rod 12 of the lifting table support legs and the lifting chair support legs.

The lifting mechanism comprises a gear box 61, the gear box 61 is fixed with the lower rod or the upper rod, a transverse bevel gear 62 and a vertical bevel gear 63 are arranged in the gear box, the transverse bevel gear is meshed with the vertical bevel gear, the transverse bevel gear is connected with a lead screw 64, a nut 65 is arranged on the lead screw, the nut 65 is fixed with the upper rod or the lower rod, a rocker 66 is arranged in the vertical bevel gear, and one end of the rocker is connected with a rocking handle 67 or a motor. The hand rocking handle 67 of accessible, the rocking handle drives the rocker 66 rotatory, perhaps the motor drives the rocker autogiration, and the rocker drives vertical bevel gear 63 rotatory, and vertical bevel gear drives horizontal bevel gear 62, and horizontal bevel gear drives the lead screw 64 rotatory, and the lead screw drives nut 65 and goes up and down, and the nut drives the upper boom and goes up and down, or the nut is fixed in the lower beam, and the lead screw is connected with the upper boom, and the lead screw is rotatory, and the nut is fixed, and the reverse upper boom that drives goes up and down. In addition, the motor can be controlled by the controller, and the lifting of all the chair supporting legs 2 and the table supporting legs 3 in the classroom is controlled by the operation controller, so that the intelligent automatic control is realized, and the using state is uniformly adjusted.

The lifting mechanism comprises a lifting gas spring 28, the lifting gas spring is arranged below the desk and the chair seat plate 4, one end of the lifting gas spring is connected with the lower surface of the desk or the chair seat plate 4, a front cross rod 29 and a rear cross rod 30 are arranged between the bottom feet, the other end of the lifting gas spring is connected with the front cross rod 29 or the rear cross rod 30, the lifting gas spring can be controlled by a handle, when the handle is pulled, a student sits on the chair seat plate 4 or presses the table plate 4 downwards, the chair seat plate and the table plate descend under the action of the weight of the human body, and when the student stands up or presses the table plate without force, the handle is pulled, and the lifting gas spring gradually rises under the action of the restoring force of the lifting gas spring.

In this embodiment, a backrest plate 41 capable of adjusting an angle relative to the seat plate is connected to the back of the seat plate 4, an inclined connection mechanism is arranged between the seat plate 4 and the backrest plate 41, the inclined connection mechanism comprises a support 31 arranged below the seat plate 4, an inclined gas spring 32 is arranged in the support, one end of the inclined gas spring is rotatably connected with the support through a first rotating shaft 33, the other end of the inclined gas spring is connected with a second rotating shaft 34, swing limiting grooves 35 are formed in the front and rear sides of the support, the second rotating shaft is matched with the swing limiting grooves, an inclined swing seat 36 is connected below the backrest plate 41, the upper portion of the inclined swing seat is rotatably connected with the support 31 through a third rotating shaft 51, and the lower portion of the inclined swing seat is fixedly connected with the second rotating shaft.

In this embodiment, a backrest plate 41 capable of adjusting an angle relative to the seat plate is connected to the back of the seat plate 4, an inclined connecting mechanism is arranged between the seat plate 4 and the backrest plate 41, the inclined connecting mechanism comprises a support rod 37 connected to the seat plate 4, a clamp pin 38 is arranged on the support rod, a handrail 39 is connected to the backrest plate 41, the handrail is rotatably connected to the backrest plate through a pin 40, an adjusting groove 48 is arranged below the handrail, and the adjusting groove is matched with the clamp pin 38.

In the embodiment, the bottom feet 1 of the front desk and the bottom feet of the rear desk and the rear desk can be connected together through the fixing structure, so that the whole row of desks and chairs are fixedly connected, and the reliability is better.

The fixing structure can be a hook and hanging ring matching structure, or a lock catch and lock ring matching structure and the like.

In the embodiment, a single desk is required to be arranged in the first row of a classroom, and the desk plate 5 and the desk supporting legs of the desk can be lifted and adjusted through the lifting mechanism. The last chair is needed to be arranged in the last row of a classroom, the chair supporting legs of the chair can be integrally connected with the bottom feet 1 of the front desk and chair, and can also be an independent lifting chair.

In this embodiment, the width of the table plate 5 is 600 mm-1200 mm, and the width of the chair plate 4 is 500 mm-1200 mm. The chair table and the rest bed are suitable for 1 person or two persons.

Claims

1. The rest bed is characterized by being formed by a table top of an integrated table and chair positioned in front and a chair seat plate and a backrest plate of the integrated table and chair positioned behind in front and rear integrated table and chair which are adjacently arranged in front and rear, the integrated table and chair positioned behind comprises a bottom leg (1) shared by the table and the chair, a chair supporting leg (2) is arranged in front of the bottom leg, a table supporting leg (3) is arranged behind the bottom leg, the chair supporting leg is used for supporting the chair seat plate (4), the table supporting leg is used for supporting the table plate (5), the backrest plate (41) capable of adjusting the angle relative to the chair seat plate is connected behind the chair seat plate (4), and at least one of the chair supporting leg (2) and the table supporting leg (3) is arranged to be capable of being adjusted in height in a lifting mode; the table plate (5) of the table in front and the seat plate (4) of the chair adjacent to the table and behind form the rest bed together with the backrest plate of the seat plate (4) inclined backwards through adjusting the angle after the height of the table plate and the seat plate (4) of the chair adjacent to the table and behind form the rest bed, the table plate (5) of the table in front and the seat plate (4) of the chair adjacent to the table are basically coplanar after the height of the chair is adjusted, and the basically coplanar refers to the fact that the table plate (5) and the seat plate (4) are in the same height plane or the table plate (5) is slightly higher than the seat plate (4) or the seat plate (4) is slightly higher than the table plate (5).

2. A rest bed as claimed in claim 1, wherein: the backrest plate (41) is connected with a headrest (42).

3. A rest bed as claimed in claim 1, wherein: a limiting piece (6) is arranged between the backrest plate (41) and the desk.

4. A rest bed as claimed in claim 1, wherein: the two back boards (41) are arranged up and down and are connected in a folding or telescopic way.

5. A rest bed as claimed in claim 4, wherein: the folding connection is a hinge (50), and the upper backrest plate (41) is connected with the lower backrest plate in a folding mode through the hinge.

6. A rest bed as claimed in claim 4, wherein: the telescopic connection comprises an inserting pipe (43) connected below an upper back board (41), a pipe sleeve (44) connected on the rear side of a lower back board, the inserting pipe is connected with the pipe sleeve in an inserting mode, a pin hole (45) is formed in the side wall of the pipe sleeve, an adjusting hole (46) is formed in the side wall of the inserting pipe, and a pin (47) penetrates through the pin hole to be matched with the adjusting hole.

7. A rest bed as claimed in claim 1, wherein: the chair supporting legs (2) and the table supporting legs (3) which can be lifted and adjusted in height respectively comprise upper rods (11) and lower rods (12), and lifting mechanisms are arranged in the upper rods (11) and the lower rods (12) of the table supporting legs and the chair supporting legs which can be lifted and adjusted in height.

8. A rest bed as claimed in claim 7, wherein: elevating system include gear box (61), gear box (61) are fixed mutually with lower beam (12) or upper boom (11), set up horizontal umbrella tooth (62) and vertical umbrella tooth (63) in the gear box, horizontal umbrella tooth meshes with vertical umbrella tooth mutually, lead screw (64) are connected to horizontal umbrella tooth, set up nut (65) on the lead screw, nut (65) are fixed mutually with upper boom (11) or lower beam (12), set up rocker (66) in the vertical umbrella tooth, rocking handle (67) or motor are connected to one end of rocker.

9. A rest bed as claimed in claim 1, wherein: chair bedplate (4) back connect can be for chair bedplate angle regulation's back board (41), set up slope coupling mechanism between chair bedplate (4) and back board (41), slope coupling mechanism include that chair bedplate (4) set up support (31) down, set up slope air spring (32) in the support, one end of slope air spring is through first pivot (33) and support swivelling joint, second pivot (34) are connected to another of slope air spring, open swing spacing groove (35) in both sides around the support, the second pivot cooperatees with the swing spacing groove, connect slope swing seat (36) under back board (41), slope swing seat upper portion is through third pivot (51) and support (31) swivelling joint, slope swing seat lower part and second pivot fixed connection.

10. A rest bed as claimed in claim 1, wherein: the chair seat plate is characterized in that a back board (41) capable of adjusting the angle relative to the chair seat plate is connected to the back of the chair seat plate (4), an inclined connecting mechanism is arranged between the chair seat plate (4) and the back board (41), the inclined connecting mechanism comprises a supporting rod (37) connected to the chair seat plate (4), a clamping pin (38) is arranged on the supporting rod, a handrail (39) is connected to the back board (41), the handrail is rotatably connected with the back board through a pin (40), an adjusting groove (48) is arranged below the handrail, and the adjusting groove is matched with the clamping pin (38).