EP4000466A1

EP4000466A1 - Bed body structure

Info

Publication number: EP4000466A1
Application number: EP19938020.5A
Authority: EP
Inventors: Huafeng SHAN; Qunliang HUAI; Hewen WU; Xingyun WANG; Dongxu TONG
Original assignee: Keeson Technology Corp Ltd
Current assignee: Keeson Technology Corp Ltd
Priority date: 2019-07-17
Filing date: 2019-08-16
Publication date: 2022-05-25
Also published as: EP4000466A4; WO2021007901A1; CN112237351A

Abstract

A bed body structure includes a bed body (1), a turnover mechanism (2) and a storage mechanism (3). The storage mechanism (3) is provided with a hollow structure, with an upward opening, formed by side walls and a bottom wall; in a closed state, the hollow structure is covered with the bed body (2); the turnover mechanism (2) is arranged between the bed body (1) and the storage mechanism (3), in an opened state, the turnover mechanism (2) enables the bed body (1) to rotate upwards along a rotation shaft close to the corresponding side wall of the storage mechanism (3). A space under a bed is fully utilized so that the utilization rate of a bedroom space can be increased, and a storage space is increased, so that a whole bedroom is tidier.

Description

Field of the Invention

The present invention relates to the field of machinery, and more specifically, to a bed body structure.

Background of the Invention

As for a modern urban housing, a space of a general family bedroom is relatively limited, a storage space is not enough to use, and an indoor space looks very crowded. While an area occupied by a bed body is generally large, and the proportion that the bed body takes up the bedroom space is large, if a space under the bed body is fully utilized to store articles, the storage space can be increased, thereby increasing the utilization rate of the bedroom space and making the whole bedroom tidier.

Summary of the Invention

The present invention provides a bed body structure to solve the problem of utilizing a space under a bed body.
Therefore, the present invention provides the bed body structure. The bed body structure includes a bed body, a turnover mechanism and a storage mechanism; the storage mechanism is provided with a hollow structure, with an upward opening, formed by side walls and a bottom wall; in a closed state, the hollow structure is covered with the bed body; and the turnover mechanism is arranged between the bed body and the storage mechanism, and in an opened state, the turnover mechanism enables the bed body to rotate upwards along a rotation shaft close to the corresponding side wall of the storage mechanism.
Further, through holes are arranged in the side walls of the storage mechanism, and ventilation mechanisms are arranged in the through holes.
Further, the bed body structure further includes a separator; and the separator is arranged in the opening of the storage mechanism.
Further, the turnover mechanism includes a first supporting piece and a second supporting piece; and two ends of the first supporting piece are respectively in pivot connection with the bed body and the storage mechanism, two ends of the second supporting piece are respectively in pivot connection with the bed body and the storage mechanism, and the first supporting piece and the second supporting piece are sequentially arranged in a direction from the rotation shaft to an opposite end of the bed body.
Further, the turnover mechanism further includes a third supporting piece and a fourth supporting piece; wherein the two ends of the first supporting piece are respectively in pivot connection with the corresponding end of the third supporting piece and the corresponding end of the fourth supporting piece, and the two ends of the second supporting piece are respectively in pivot connection with the corresponding other end of the third supporting piece and the corresponding other end of the fourth supporting piece; in the closed state, the third supporting piece is arranged parallel to a bottom face of the bed body, and the fourth supporting piece is arranged in the storage mechanism and is parallel to the third supporting piece; and an included angle between the first supporting piece and the fourth supporting piece is an obtuse angle, and an included angle between the second supporting piece and the fourth supporting piece is an acute angle.
Further, the turnover mechanism further includes a first driving mechanism; wherein the third supporting piece is provided with an extension part extending in the direction from the rotation shaft to the opposite end of the bed body; two ends of the first driving mechanism are respectively in pivot connection with the extension part and the second supporting piece; and the first driving mechanism is used for pushing the bed body to rotate upwards along the rotation shaft close to the corresponding side wall of the storage mechanism.
Further, the bed body includes a base, supporting mechanisms and at least two bed boards; the supporting mechanisms are arranged between the base and the bed boards; and in a spread state of the bed body, projections of the supporting mechanisms on side faces of the bed body fall into ranges of cross sections of the side faces of the bed body.
Further, the bed boards include a first bed board, a second bed board, a third bed board and a fourth bed board, the supporting mechanisms include second driving mechanisms, first connecting rods, second connecting rods and pulley assemblies; wherein the first bed board, the second bed board, the third bed board and the fourth bed board are sequentially in pivot connection at junctions with the rotation shaft as a starting point and horizontally arrayed on a top of the base; two ends of the second driving mechanisms are respectively in pivot connection with the base and the first connecting rods, horizontal directions of thrusts of the second driving mechanisms are the same as a horizontal direction of motion from first pulleys to second pulleys, the first connecting rods are parallel to the rotation shaft, and the second connecting rods 7 are fixedly arranged on the base and are parallel to the first connecting rods; the pulley assemblies include supporting rods, the first pulleys and the second pulleys; the first pulleys are in pivot connection with one ends of the supporting rods, the second pulleys are in pivot connection with middles of the supporting rods, and the other ends of the supporting rods are in pivot connection with the second connecting rods; the middles of the supporting rods protrude towards the bed boards by an obtuse angle, when the bed boards are in a spread state, the second pulleys are in contact with the bed boards and can slide on bottom faces of the bed boards, when the bed boards are deformed, both the first pulleys and the second pulleys are in contact with the bed boards and can slide on the bottom faces of the bed boards; and two ends of the first connecting rods are respectively provided with the pulley assemblies, the supporting rods are located between pivot connection points of the second connecting rods and the second pulleys and respectively vertically connected with two ends of the first connecting rods.
Further, lengths and positions of gravity arms, first resistance arms and second resistance arms in a horizontal direction of the supporting mechanisms in a spread state are adjusted according to following formulas (1) and (2) to reduce lengths of power arms in a vertical direction of the supporting mechanisms in the spread state: $F 1 = (G \times L 3) \div L 1$
$L 2 > (F 1 \times L 4) \div F$
where L1 represents the first resistance arms, L2 represents the power arms, L3 represents the gravity arms, L4 represents the second resistance arms, G represents loads of the bed boards, F represents the thrusts, and F1 represents resistance; and
where the first resistance arms are above the second resistance arms.
Further, load-bearing parts are arranged on inner walls of the storage mechanism, and distances between the load-bearing parts and the opening are smaller than or equal to a thickness of the bed body.
Further, the bed body structure further includes fixing pieces, and the fixing pieces are arranged on a top face of the bed body.
Further, the bed body structure further includes a power line; wherein the power line includes a binding post, a transformer, a conductor and a joint; and the binding post is connected with the transformer and is in an 'L' shape, the transformer is connected with one end of the conductor, a naturally-spreading direction of the conductor is perpendicular to the binding post, one end of the joint is connected with the other end of the conductor, and the joint is in an 'L' shape.
Via this solution, a space under a bed can be fully utilized to store articles, thereby increasing a storage space, improving the utilization rate of a bedroom space and making the whole bedroom tidier.

Brief Description of the Drawings

By reading the detailed description of the non-restrictive embodiments with reference to the drawings below, other features, objectives and advantages of the present invention will be more apparent:

Fig. 1 is a schematic stereo structure diagram of a using state of a bed body structure of Embodiment 1 of the present invention;
Fig. 2 is a schematic structural diagram of side face unfolding of a bed body structure of Embodiment 1 of the present invention;
Fig. 3 is a schematic bottom view of a bed body structure of Embodiment 1 of the present invention;
Fig. 4 is a schematic structural diagram of side faces of a bed body structure of Embodiment 2 of the present invention;
Fig. 5 is a schematic perspective structural diagram of side faces of a bed body structure of Embodiment 2 of the present invention; and
Fig. 6 is a partial schematic structural diagram of support parts in the present invention.

Reference signs of the description:
1-bed body, 11-bed board, 111-first bed board, 112-second bed board, 113-third bed board, 114-fourth bed board, 12-supporting mechanism, 13-base, 2 turnover mechanism, 21-first supporting piece, 22-second supporting piece, 23-third supporting piece, 24-fourth supporting piece, 25-first driving mechanism, 26-extension part, 3-storage mechanism, 31-load-bearing part, 4 fixing piece, 5-second driving mechanism, 6-first connecting rod, 7-second connecting rod, 8-pulley assembly, 81-supporting rod, 82-first pulley, 83-second pulley, 9-third driving mechanism, and 10-locking mechanism.

Detailed Description of the Embodiments

The present invention will be further described in detail below in conjunction with accompanying drawings.
Fig. 1 is a schematic stereo structure diagram of a using state of a bed body structure of Embodiment 1 of the present invention, and Fig. 2 is a structural diagram of side face unfolding of a bed body structure of Embodiment 1 of the present invention. As shown in Fig. 1 and Fig. 2, a bed body structure provided by the present invention includes a bed body 1, a turnover mechanism 2 and a storage mechanism 3; the storage mechanism 3 is provided with a hollow structure, with an upward opening, formed by side walls and a bottom wall; in a closed state, the hollow structure is covered with the bed body 1; and the turnover mechanism 2 is arranged between the bed body 1 and the storage mechanism 3, and in an opened state, the turnover mechanism 2 enables the bed body 1 to rotate upwards along a rotation shaft close to the corresponding side wall of the storage mechanism 3.
The bed body 1 is arranged on a top of the storage mechanism 3, the bed body 1 can be raised or lowered relative to the storage mechanism 3 via the turnover mechanism 2, that is, the bed body 1 is raised or lowered at the other end opposite to one end of the storage mechanism 3 by taking one end of the storage mechanism 3 as a rotation axis to open and close the storage mechanism 3. According to the difference of positions of a storage opening, the turnover mechanism 2 is arranged at the other end opposite to the position of the storage opening, and the turnover mechanism 2 is parallelly arranged on the two sides of the bed body 1. When stored, the articles can be stored only by taking the turnover mechanism 2 as a fulcrum and raising one end of the bed body 1. A space under a bed is fully utilized so that the utilization rate of a bedroom space can be increased, and a storage space is increased, so that a whole bedroom is tidier.
Preferably, the turnover mechanism 2 is arranged at the other end opposite to the end intended as an opening end, and the closer the turnover mechanism 2 is to an end point of the end, the larger the storage opening after raising is, thereby making it easier to store large articles.
The storage mechanism 3 can be made of boards in an enclosed mode. Four of the bed boards are selected to be vertically placed and connected end to end into a cube, and a plurality of arc-shaped boards can also be adopted to constitute a cylinder, an ellipsoid or other irregular stereo structures. The height of the storage mechanism 3 depends on the heights of the boards, and finally the bottom of the cube is closed with the board matched with a bottom opening to form the storage mechanism 3 with the upward opening.
Specifically, through holes are arranged in the side walls of the storage mechanism 3, and ventilation mechanisms are arranged in the through holes.
The storage mechanism 3 is generally in a closed or semi-closed state, air flow is poor, and especially, when the storage mechanism 3 is in the closed state and stores a lot of articles, the interior of the storage mechanism 3 is poor in ventilation, humid and easily prone to breeding bacteria to cause mildew. In addition, ventilation mechanisms are beneficial to overall heat dissipation of the bed body 1 in addition to accelerating air flow in a space under the bed body 1, and especially when matched with a ventilative mattress, the ventilation mechanisms are beneficial to heat dissipation of the mattress to keep ventilation of the back of a user.
Specifically, the bed body structure further includes a separator, and the separator is arranged in the opening of the storage mechanism 3.
The opening of the storage mechanism 3 is closed via the separator to shield the articles inside the storage mechanism 3, when the bed body 1 works, the external articles are prevented from falling into the storage mechanism 3, dust is prevented from entering to keep the interior of the storage mechanism 3 clean, and the articles inside the storage mechanism 3 cannot be seen by people, so that the bed body structure is more attractive. A telescopic segregation board can be selected as the separator.
As shown in Fig. 2, the turnover mechanism 2 includes a first supporting piece 21 and a second supporting piece 22; and the two ends of the first supporting piece 21 are respectively in pivot connection with the bed body 1 and the storage mechanism 3, the two ends of the second supporting piece 22 are respectively in pivot connection with the bed body 1 and the storage mechanism 3, and the first supporting piece 21 and the second supporting piece 22 are sequentially arranged in a direction from the rotation shaft to an opposite end of the bed body 1.
The length of the first supporting piece 21 is smaller than the length of the second supporting piece 22 so that the raising height of the bed body 1 can be limited. The first supporting piece 21 and the second supporting piece 22 are in linkage fit so that integral raising and lowering of the bed body 1 can be achieved, and the support force of the whole bed body 1 is increased.
As shown in Fig. 2, the turnover mechanism 2 further includes a third supporting piece 23 and a fourth supporting piece 24; wherein the two ends of the first supporting piece 21 are respectively in pivot connection with the corresponding end of the third supporting piece 23 and the corresponding end of the fourth supporting piece 24, and the two ends of the second supporting piece 22 are respectively in pivot connection with the corresponding other end of the third supporting piece 23 and the corresponding other end of the fourth supporting piece 24; in the closed state, the third supporting piece 23 is arranged parallel to a bottom face of the bed body 1, and the fourth supporting piece 24 is arranged in the storage mechanism 3 and is parallel to the third supporting piece 23; and an included angle between the first supporting piece 21 and the fourth supporting piece 24 is an obtuse angle, and an included angle between the second supporting piece 22 and the fourth supporting piece 24 is an acute angle.
The first supporting piece 21, the second supporting piece 22, the third supporting piece 23 and the fourth supporting piece 24 are connected together end to end. Because the lengths of the four supporting pieces are different, a trapezoid is shown. When the mass of the bed body 1 is large, it is required that the turnover mechanism 2 can bear large weight to maintain the stability of the lifting process and avoid great ups and downs. In addition, the newly added third supporting piece 23 and fourth supporting piece 24 are beneficial to dispersing the weight of the bed body 1, and reducing the pressure of a connection point between the first supporting piece 21 and the storage mechanism 3 as well as the pressure of a connection point between the second supporting piece 22 and the storage mechanism 3 to prevent damaging the storage mechanism 3 due to the overlarge pressure.
Preferably, a four-linkage mechanism in a lower pair mechanism can be adopted, which is consisting of the four rigid supporting pieces with lower pair linkages and making all motion components move in the same plane. The structure adopts surface contact, is small in pressure intensity, large in bearing capacity, resistant to shock and convenient to machine, can further optimize the bearing capacity and shock-resistant capacity of the turnover mechanism 2, and can meet the design requirements of different motion tracks by adjusting the relative lengths of the components to facilitate customization according to the need of the user.
Further, the turnover mechanism 2 further includes a first driving mechanism 25; wherein the third supporting piece 23 is provided with an extension part 26 extending in the direction from the rotation shaft to the opposite end of the bed body; the two ends of the first driving mechanism 25 are respectively in pivot connection with the extension part 26 and the second supporting piece 22; and the first driving mechanism 25 is used for pushing the bed body to rotate upwards along the rotation shaft close to the corresponding side wall of the storage mechanism 3.
When the weight of the bed body 1 is large, it is relatively difficult to raise the bed body 1 via human power alone. In the case of not changing the connecting relationship between the first supporting piece 21, the second supporting piece 22, the third supporting piece 23 and the fourth supporting piece, the third supporting piece 23 extends towards the storage opening to form the extension part 26, then the first driving mechanism 25 is connected into the supporting structure to raise or lower the bed body 1, and the bed body 1 can be raised or lowered by the user without effort. In addition, the distance between the bed body 1 and the side wall, close to the rotation shaft, of the storage mechanism 3 is preferably controlled within 30 cm to make the storage mechanism obtain a larger storage space.
Preferably, a straight rod motor making linear motion is adopted as the first driving mechanism 25.
The linear movement of the first driving mechanism 25 is equivalent to adding a supporting piece of variable length into the supporting structure, which can not only optimize the stress of the structure, but also provide power, and the solution is easy to implement and avoids more complex transmission structures. For example, a gas rod or straight rod motor, and gas rod and push rod motors all make linear motion, requires no complex transmission mechanism for lifting motion, and can be used via direct installation, thereby reducing the loss of driving force.
Further, the bed body 1 includes a base 13, supporting mechanisms 12 and at least two bed boards; the supporting mechanisms 12 are arranged between the base 13 and the bed boards; and in a spread state of the bed body 1, projections of the supporting mechanisms 12 on side faces of the bed body 1 fall into ranges of cross sections of the side faces of the bed body 1.
The bed boards 11 generally consist of a plurality of irregular bed boards, the plurality of bed boards are sequentially in pivot connection with each other at junctions and horizontally arrayed on the top of the base 13. The spreading state of the bed body 1 is that the bed boards are flat laid on the top face of the base 13, at the moment, the supporting mechanisms 12 are in a contacted state, and the bed body 1 has the minimum size and the smallest thickness. The plurality of bed boards can be deformed via the supporting mechanisms 12 to better adapt to curves of a human body and increase the comfort level.
Fig. 3 is a schematic bottom view of a bed body of Embodiment 1 of the present invention. As shown in Fig. 3, further, the bed boards 11 include a first bed board 111, a second bed board 112, a third bed board 113 and a fourth bed board 114, the supporting mechanisms 12 include second driving mechanisms 5, first connecting rods 6, second connecting rods 7 and pulley assemblies 8; wherein the first bed board 111, the second bed board 112, the third bed board 113 and the fourth bed board 114 are sequentially in pivot connection at junctions with the rotation shaft as a starting point and horizontally arrayed on the top of the base 13; the two ends of the second driving mechanisms 5 are respectively in pivot connection with the base 13 and the first connecting rods 6, horizontal directions of thrusts of the second driving mechanisms 5 are the same as a horizontal direction of motion from first pulleys 82 to second pulleys 83, the first connecting rods 6 are parallel to the rotation shaft, and the second connecting rods 7 are fixedly arranged on the base 13 and are parallel to the first connecting rods 6; the pulley assemblies 8 include supporting rods 81, the first pulleys 82 and the second pulleys 83; the first pulleys 82 are in pivot connection with one ends of the supporting rods 81, the second pulleys 83 are in pivot connection with the middles of the supporting rods 81, and the other ends of the supporting rods 81 are in pivot connection with the second connecting rods; the middles of the supporting rods 81 protrude towards the bed boards 11 by an obtuse angle, when the bed boards 11 are in a spread state, the second pulleys 83 are in contact with the bed boards and can slide on bottom faces of the bed boards, when the bed boards 11 are deformed, both the first pulleys 82 and the second pulleys 83 are in contact with the bed boards 11 and can slide on the bottom faces of the bed boards 11; and the two ends of the first connecting rods 6 are respectively provided with the pulley assemblies 8, the supporting rods 81 are located between pivot connection points of the second connecting rods 7 and the second pulleys 83 and respectively vertically connected with the two ends of the first connecting rods 6.
Fig. 6 is a partial schematic structural diagram of support parts in the present invention. As shown in Fig. 6, the supporting rods 81 are of bent structures, that is, the middles of the supporting rods 81 are at an obtuse angle, and it is better to select the obtuse angle of about 150 degrees. When working, the second driving mechanisms 5 drive the first connecting rods 6 to rotate with the second connecting rods 7 as axes, the second pulleys 83 follow the first connecting rods 6 to slide on the corresponding bed boards and push the bed boards to be turned over. When the bed boards are turned over by 20 degrees to 30 degrees relative to the base 13, the first pulleys 82 are also in contact with the bottom faces of the corresponding bed boards and can slide on the bottom faces of the bed boards. In the case of only one kind of pulleys, when the bed boards are turned over by 20 degrees to 30 degrees, a very large resistance is produced, and the addition of the other kind of pulleys can overcome the resistance and ensure stable turnover of the bed boards 11.
When the supporting mechanisms 12 are responsible for pushing the third bed board 113, the third bed board 113 is turned over with the second connecting rod 7 (at the lower end in Fig. 3) as a rotating axis via a pivot connection point between the corresponding supporting rods and the corresponding second connecting rod. The horizontal direction of turnover is the same as the horizontal direction from the first pulleys 82 to the second pulleys 83. In addition, if the third bed board 113 is provided with the fourth bed board 114 in the direction from the second pulleys 83 to the first pulleys 82 and one end of the fourth bed board 114 is in pivot connection with the third bed board 113, the pivot connection end of the fourth bed board 114 with the third bed board 113 can also be turned over along with the third bed board 113 relative to the base 13. At the moment, only one supporting mechanism 12 can prompt two of the bed boards that are in pivot connection to be turned over together and deformed; moreover, a third connecting rod can also be additionally arranged at the other end of the fourth bed board 114, via pivot connection between the third connecting rod and the base 13, when the third bed board 113 is turned over to a certain angle, the other end of the fourth bed board 114 will be turned over by a certain height with the third connecting rod as the rotation radius, the length of the third connecting rod is adjusted according to the specific structure of the bed body 1, and if the third connecting rod is too long or too short, the other end of the fourth bed board 114 cannot be flipped up. In this way, supporting mechanisms 12 in the bed body 1 can be reduced without affecting the turnover function of the bed boards 11, the weight and size of the bed body 1 can also be reduced, and the production cost is reduced.
Further, lengths and positions of gravity arms, first resistance arms and second resistance arms in a horizontal direction of the supporting mechanisms 12 in a spread state are adjusted according to following formulas (1) and (2) to reduce lengths of power arms in a vertical direction of the supporting mechanisms 12 in the spread state: $F 1 = (G \times L 3) \div L 1$
$L 2 > (F 1 \times L 4) \div F$
where L1 represents the first resistance arms, L2 represents the power arms, L3 represents the gravity arms, L4 represents the second resistance arms, G represents loads of the bed boards, F represents the thrusts, and F1 represents resistance; and
where the first resistance arms are above the second resistance arms.
Resistance F1 is a force perpendicular to the base 13 from a contact point between the second pulley 83 and the bed board, load G is gravity perpendicular to the midpoint of the bed board that is in contact with the second pulley 83, gravity arm L3 is a linear distance from the midpoint of the bed board that is in contact with the second pulley 83 to the rotation axis of this bed board, resistance arm L1 is a linear distance from the contact point between the second pulley 83 and the bed board to the rotation axis of this bed board, and power arm L2 is a linear distance from a pivot connection point between a supporting rod 81 and the second connecting rod to an extension line of thrust F.
The length of power arm L2 is directly proportional to the thickness of the supporting mechanism 12, that is, the shorter power arm L2 is, the thinner the supporting mechanism 12 is, thereby affecting the thickness of the bed body 1. For example, the length of the first resistance arm is increased and the length of the gravity arm is reduced to reduce the resistance, in the case of reducing the resistance, the length of the second resistance arm is reduced to further reduce the length of the power arm, etc. When F < 3000 N and G > 1285 N, that is, in the case that the body weight is borne by the bed body, via force analysis, the change in positions of the force arms is simulated, the change in force is calculated, the optimal force arm is found, the structures of the force arms of the bed body 1 are optimized, and the thickness of the bed body 1 is reduced, so that the bed body 1 gets thinner.
Fig. 4 is a schematic structural diagram of side faces of a bed body structure of Embodiment 2 of the present invention, and Fig. 5 is a schematic perspective structural diagram of side faces of a bed body structure of Embodiment 2 of the present invention. As shown in Fig. 4 and Fig. 5, in addition, the supporting mechanism 12 driving the first bed board 111 to be turned over can be further optimized, instead of independently arranging a driving mechanism between the storage mechanism 3 and the bed body 1, the driving mechanisms in the bed body 1 are utilized to be connected with the storage mechanism 3 to drive the bed body 1 to be turned over relative to the storage mechanism 3. The aforementioned "the two ends of the second driving mechanisms 55 are respectively in pivot connection with the base 13 and the second connecting rod 7" is changed to "the two ends of third driving mechanisms 9 are respectively in pivot connection with the storage mechanism 3 and the second connecting rod 7". In the meantime, locking mechanisms 10 are fixedly arranged on the first bed board 111 to fixedly connect the first bed board 111 with the base 13. In this way, when the locking mechanisms 10 conduct locking, the third driving mechanisms 9 can raise the whole bed body 1 in a driving mode; and when the locking mechanisms 10 do not conduct locking, the third driving mechanisms 9 can raise the first bed board 111 in the driving mode. The driving devices required for the bed body 1 structure and the weight are reduced, and meanwhile the cost is further saved.
Further, load-bearing parts 31 are arranged on the inner walls of the storage mechanism 3, and distances between the load-bearing parts 31 and the opening are smaller than or equal to the thickness of the bed body 1.
When not raised, the bed body 1 is parallel to the storage mechanism 3, the load-bearing parts 31 can provide supporting force for the bed body 1 to prevent the bed body 1 from falling, and the turnover mechanism 2 can also be protected against being damaged. The distances between the load-bearing parts 31 and the opening are smaller than or equal to the thickness of the bed body 1 so that a large storage space can be obtained. For example, the load-bearing parts 31 are respectively arranged at the four corners of the storage mechanism 3, the distances between the load-bearing parts 31 and the opening are equal to the thickness of the bed body 1, and thus the bed body 1 can be placed into the opening of a storage box. With the support of the load-bearing parts 31, the bed body 1 can be flat placed in the opening of the storage mechanism 3, and meanwhile, the pressure borne by the turnover mechanism 2 in a non-lifting state can also be reduced. In the meantime, the bed body 1 is placed into the opening of the storage mechanism 3, so that the bed body structure is overall more attractive.
With reference to Fig. 1, further, the bed body 1 structure further includes fixing pieces 4, and the fixing pieces 4 are arranged on the top face of the bed body 1.
At least one fixing piece 4 is arranged, when used, the bed body 1 will be equipped with a mattress. Considering that when articles are stored, the mattress will slip after the bed body 1 is turned over to a certain height, the fixing pieces 4 are additionally arranged to fix the mattress so that the mattress can be prevented from sliding. Anti-slip rods, hook and loop fasteners and the like can be adopted as the fixing pieces 4. When the anti-slip rods are adopted, it is best to respectively provide each of the two ends of the bed body 1 in the turnover direction with the corresponding anti-slip rod, and turnover of the bed body 1 or displacement of the mattress relative to the bed body 1 caused by turnover of the bed body 1 can be prevented. When adopted, the hook and loop fasteners can be arranged on the top face of the bed body 1, and preferably arranged on the upper surface of the bed board 11 farthest from the rotation shaft, and when the bed board is turned over to the highest point, the mattress can be prevented from sliding downwards to be extruded. In addition, the hook and loop fasteners are preferably arranged on the foot board, for example, if arranged at the head, the hook and loop fasteners will be pulled off, and if the hook and loop fasteners are arranged at the foot board, this problem does not exist.
Further, the bed body 1 structure further includes a power line; wherein the power line includes a binding post, a transformer, a conductor and a joint; and the binding post is connected with the transformer and is in an 'L' shape, the transformer is connected with one end of the conductor, a naturally-spreading direction of the conductor is perpendicular to the binding post, one end of the joint is connected with the other end of the conductor, and the joint is in an 'L' shape.
Traditional power lines are mostly directly plugged, and the middles of the power lines are equipped with variable-voltage adapters. Similar to a notebook power line, the power line falls onto the ground, which affects the beauty. Problems that a power plug cannot be completely plugged and has a very long tail, and the power line is too short to enable the storage box to lean against the wall exist. Such problems can be solved well by using a new power supply with a plug and an L-shaped interface for matching, and convenience and beauty are achieved.
After considering the specification and practicing the invention disclosed herein, those skilled in the art will be easily think of other implementations of the present invention. The present application is intended to cover any variations, objectives or adaptive changes of the invention, and these variations, objectives or adaptive changes follow the general principles of the invention and include common general knowledge or conventional means, not disclosed in the present disclosure, in the technical field. The specification and embodiments are considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.
It should be appreciated that the present invention is not limited to the precise structure having been described above and shown in the drawings and can make various modifications and changes without departing its scope.

Claims

A bed body structure, characterized in that the bed body structure includes a bed body, a turnover mechanism and a storage mechanism;
the storage mechanism is provided with a hollow structure, with an upward opening, formed by side walls and a bottom wall; in a closed state, the hollow structure is covered with the bed body; and

the turnover mechanism is arranged between the bed body and the storage mechanism, and in an opened state, the turnover mechanism enables the bed body to rotate upwards along a rotation shaft close to the corresponding side wall of the storage mechanism.
The bed body structure according to claim 1, characterized in that through holes are arranged in the side walls of the storage mechanism, and ventilation mechanisms are arranged in the through holes.
The bed body structure according to claim 2, characterized in that the bed body structure further includes a separator; and
the separator is arranged in the opening of the storage mechanism.
The bed body structure according to claim 1, characterized in that the turnover mechanism includes a first supporting piece and a second supporting piece; and
two ends of the first supporting piece are respectively in pivot connection with the bed body and the storage mechanism, two ends of the second supporting piece are respectively in pivot connection with the bed body and the storage mechanism, and the first supporting piece and the second supporting piece are sequentially arranged in a direction from the rotation shaft to an opposite end of the bed body.
The bed body structure according to claim 4, characterized in that the turnover mechanism further includes a third supporting piece and a fourth supporting piece;
wherein the two ends of the first supporting piece are respectively in pivot connection with the corresponding end of the third supporting piece and the corresponding end of the fourth supporting piece, and the two ends of the second supporting piece are respectively in pivot connection with the corresponding other end of the third supporting piece and the corresponding other end of the fourth supporting piece;

in the closed state, the third supporting piece is arranged parallel to a bottom face of the bed body, and the fourth supporting piece is arranged in the storage mechanism and is parallel to the third supporting piece; and

an included angle between the first supporting piece and the fourth supporting piece is an obtuse angle, and an included angle between the second supporting piece and the fourth supporting piece is an acute angle.
The bed body structure according to claim 5, characterized in that the turnover mechanism further includes a first driving mechanism;
wherein the third supporting piece is provided with an extension part extending in the direction from the rotation shaft to the opposite end of the bed body;

two ends of the first driving mechanism are respectively in pivot connection with the extension part and the second supporting piece; and

the first driving mechanism is used for pushing the bed body to rotate upwards along the rotation shaft close to the corresponding side wall of the storage mechanism.
The bed body structure according to any one of claims 1 to 6, characterized in that the bed body includes a base, supporting mechanisms and at least two bed boards;
the supporting mechanisms are arranged between the base and the bed boards; and

in a spread state of the bed body, projections of the supporting mechanisms on side faces of the bed body fall into ranges of cross sections of the side faces of the bed body.
The bed body structure according to claim 7, characterized in that the bed boards include a first bed board, a second bed board, a third bed board and a fourth bed board, the supporting mechanisms include second driving mechanisms, first connecting rods, second connecting rods and pulley assemblies;
wherein the first bed board, the second bed board, the third bed board and the fourth bed board are sequentially in pivot connection at junctions with the rotation shaft as a starting point and horizontally arrayed on a top of the base;

two ends of the second driving mechanisms are respectively in pivot connection with the base and the first connecting rods, horizontal directions of thrusts of the second driving mechanisms are the same as a horizontal direction of motion from first pulleys to second pulleys, the first connecting rods are parallel to the rotation shaft, and the second connecting rods 7 are fixedly arranged on the base and are parallel to the first connecting rods;

the pulley assemblies include supporting rods, the first pulleys and the second pulleys;

the first pulleys are in pivot connection with one ends of the supporting rods, the second pulleys are in pivot connection with middles of the supporting rods, and the other ends of the supporting rods are in pivot connection with the second connecting rods;

the middles of the supporting rods protrude towards the bed boards by an obtuse angle, when the bed boards are in a spread state, the second pulleys are in contact with the bed boards and can slide on bottom faces of the bed boards, when the bed boards are deformed, both the first pulleys and the second pulleys are in contact with the bed boards and can slide on the bottom faces of the bed boards; and

two ends of the first connecting rods are respectively provided with the pulley assemblies, the supporting rods are located between pivot connection points of the second connecting rods and the second pulleys and respectively vertically connected with two ends of the first connecting rods.
The bed body structure according to claim 7, characterized in that lengths and positions of gravity arms, first resistance arms and second resistance arms in a horizontal direction of the supporting mechanisms in a spread state are adjusted according to following formulas (1) and (2) to reduce lengths of power arms in a vertical direction of the supporting mechanisms in the spread state: $F 1 = (G \times L 3) \div L 1$
$L 2 > (F 1 \times L 4) \div F$
where L1 represents the first resistance arms, L2 represents the power arms, L3 represents the gravity arms, L4 represents the second resistance arms, G represents loads of the bed boards, F represents the thrusts, and F1 represents resistance; and
where the first resistance arms are above the second resistance arms.
The bed body structure according to claim 7, characterized in that load-bearing parts are arranged on inner walls of the storage mechanism, and distances between the load-bearing parts and the opening are smaller than or equal to a thickness of the bed body.
The bed body structure according to claim 1, characterized in that the bed body structure further includes fixing pieces, and the fixing pieces are arranged on a top face of the bed body.
The bed body structure according to claim 1, characterized in that the bed body structure further includes a power line;
wherein the power line includes a binding post, a transformer, a conductor and a joint; and

the binding post is connected with the transformer and is in an 'L' shape, the transformer is connected with one end of the conductor, a naturally-spreading direction of the conductor is perpendicular to the binding post, one end of the joint is connected with the other end of the conductor, and the joint is in an 'L' shape.