A bed structure

Abstract

The present invention relates to the field of mechanical technology, and discloses a bed structure, comprising: a bed, a turning mechanism and a storage mechanism; the storage mechanism is provided with a hollow structure with an opening upwardly formed by a side wall and a bottom wall; in a closed state, the bed covers the hollow structure; the turning mechanism is provided between the bed and the storage mechanism, and in an open state, the turning mechanism causes the bed to rotate upwardly along a rotation axis close to the side wall of the storage mechanism. By making full use of the space under the bed, the utilization rate of the bedroom space can be improved, the storage space can be increased, and the bedroom as a whole can be made tidier.

Description

Technical Field

[0001] The invention relates to the field of mechanical technology, and in particular to a bed structure. Background Art

[0002] In modern urban residences, the space of general family bedrooms is relatively limited, and there is insufficient storage space, making the interior very crowded. The bed generally occupies a large area and a large proportion of the bedroom space. If the space under the bed is fully utilized for storing items, the storage space can be increased, the utilization rate of the bedroom space can be improved, and the bedroom as a whole can be made tidier. Summary of the invention

[0003] The invention provides a bed structure to solve the problem of utilizing the space under the bed.

[0004] To this end, the present invention provides a bed structure, a bed structure, comprising: a bed, a flipping mechanism and a storage mechanism; the storage mechanism is provided with a hollow structure with an opening upward formed by side walls and a bottom wall; in a closed state, the bed covers the hollow structure; the flipping mechanism is provided between the bed and the storage mechanism, and in an open state, the flipping mechanism causes the bed to rotate upward along a rotation axis close to the side wall of the storage mechanism.

[0005] Furthermore, a through hole is provided on a side wall of the storage mechanism, and a ventilation mechanism is provided in the through hole.

[0006] Furthermore, it also includes: an isolating member; the isolating member is arranged at the opening of the storage mechanism.

[0007] Furthermore, the flipping mechanism includes: a first support member and a second support member; the two ends of the first support member are respectively pivotally connected to the bed body and the storage mechanism, the two ends of the second support member are respectively pivotally connected to the bed body and the storage mechanism, and the first support member and the second support member are arranged in sequence along the direction from the rotating axis to the opposite end of the bed body.

[0008] Furthermore, the flipping mechanism also includes: a third support member and a fourth support member; wherein, the two ends of the first support member are pivotally connected to one end corresponding to the third support member and the fourth support member, respectively, and the two ends of the second support member are pivotally connected to the other end corresponding to the third support member and the fourth support member, respectively; in a closed state, the third support member is arranged parallel to the bottom surface of the bed, and the fourth support member is arranged on the storage mechanism and parallel to the third support member; the angle between the first support member and the fourth support member is an obtuse angle, and the angle between the second support member and the fourth support member is an acute angle.

[0009] Furthermore, the flipping mechanism also includes: a first driving mechanism; wherein the third support member is provided with an extension portion extending in the direction from the rotation axis to the opposite end of the bed body; the two ends of the first driving mechanism are respectively pivotally connected to the extension portion and the second support member; the first driving mechanism is used to push the bed body to rotate upward along the rotation axis close to the side wall of the storage mechanism.

[0010] Furthermore, the bed body comprises: a base, a support mechanism and at least two bed boards; the support mechanism is arranged between the base and the bed boards; when the bed body is in an extended state, the projection of the support mechanism on the side of the bed body falls within the range of the side cross section of the bed body.

[0011] Further, the bed board includes: a first bed board, a second bed board, a third bed board and a fourth bed board, and the supporting mechanism includes: a second driving mechanism, a first connecting rod, a second connecting rod, and a pulley assembly; wherein the first bed board, the second bed board, the third bed board and the fourth bed board are pivotally connected at the intersection in sequence with the rotation axis as the starting point and are horizontally arranged on the top of the base; the two ends of the second driving mechanism are pivotally connected to the base and the first connecting rod respectively, the horizontal direction of the thrust of the second driving mechanism is the same as the horizontal movement direction from the first pulley to the second pulley, the first connecting rod is parallel to the rotation axis, and the second connecting rod 7 is fixed on the base and parallel to the first connecting rod; the pulley assembly includes: A support rod, a first pulley and a second pulley; the first pulley is pivotally connected to one end of the support rod, the second pulley is pivotally connected to the middle part of the support rod, and the other end of the support rod is pivotally connected to the second connecting rod; the middle part of the support rod protrudes toward the bed board at an obtuse angle, and when the bed board is in the extended state, the second pulley contacts the bed board and can slide on the bottom surface of the bed board, and when the bed board is deformed, the first pulley and the second pulley both contact the bed board and can slide on the bottom surface of the bed board; the pulley assemblies are respectively provided at both ends of the first connecting rod, the support rod is located between the pivot connection point of the second connecting rod to the second pulley, and the two ends of the first connecting rod are respectively vertically connected.

[0012] Furthermore, the lengths and positions of the gravity arm, the first resistance arm, and the second resistance arm in the horizontal direction of the support mechanism in the extended state are adjusted according to the following formulas (1) and (2) to reduce the length of the power arm in the vertical direction of the support mechanism in the extended state:

[0013] F1=(G×L3)÷L1 (1);

[0014] L2>(F1×L4)÷F2);

[0015] Wherein, L1 represents the first resistance arm, L2 represents the power arm, L3 represents the gravity arm, L4 represents the second resistance arm, G represents the weight of the bed board, F represents the thrust, and F1 represents the resistance;

[0016] Wherein, the first resistance arm is above the second resistance arm.

[0017] Furthermore, a load-bearing portion is provided on the inner wall of the storage mechanism, and the distance between the load-bearing portion and the opening is less than or equal to the thickness of the bed body.

[0018] Furthermore, the bed structure also includes: a fixing part, which is arranged on the top surface of the bed.

[0019] Furthermore, the bed structure also includes: a power cord; wherein the power cord includes: a power post, a transformer, a wire, and a connector; the power post is connected to the transformer and is in an "L" shape, the transformer is connected to one end of the wire, the natural extension direction of the wire is perpendicular to the power post, one end of the connector is connected to the other end of the wire, and the connector is in an "L" shape.

[0020] Through this technical solution, the space under the bed can be fully utilized to store items, which can increase the storage space, improve the utilization rate of the bedroom space, and make the bedroom as a whole more tidy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the bed structure in use state according to the first embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the unfolded structure of the bed structure of the first embodiment of the present invention;

[0024] Figure 3 This is a bottom view structural diagram of a bed body according to Embodiment 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the side structure of the bed structure of the second embodiment of the present invention;

[0026] Figure 5 This is a side perspective structural diagram of a bed structure according to a second embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the local structure of the supporting component in the present invention.

[0028] Description of reference numerals:

[0029] 1-bed body, 11-bed board, 111-first bed board, 112-second bed board, 113-third bed board, 114-fourth bed board, 12-support mechanism, 13-base, 2-flip mechanism, 21-first support member, 22-second support member, 23-third support member, 24-fourth support member, 25-first driving mechanism, 26-extension part, 3-storage mechanism, 31-load-bearing part, 4-fixing part, 5-second driving mechanism, 6-first connecting rod, 7-second connecting rod 7, 8-pulley assembly, 81-support rod, 82-first pulley, 83-second pulley, 9-third driving mechanism, 10-locking mechanism. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] Figure 1 This is a three-dimensional structural diagram of the bed structure in use state according to the first embodiment of the present invention. Figure 2 FIG. 1 is a schematic diagram of the unfolded structure of the bed structure of the first embodiment of the present invention. Figure 1 and Figure 2 As shown, the bed structure provided by the present invention includes: a bed 1, a turning mechanism 2 and a storage mechanism 3; the storage mechanism 3 is provided with a hollow structure with an opening upward formed by side walls and a bottom wall; in a closed state, the bed 1 covers the hollow structure; the turning mechanism 2 is provided between the bed 1 and the storage mechanism 3, and in an open state, the turning mechanism 2 causes the bed 1 to rotate upward along a rotation axis close to the side wall of the storage mechanism 3.

[0032] The bed body 1 is arranged on the top of the storage mechanism 3. The bed body 1 can be lifted or lowered relative to the storage mechanism 3 through the flip mechanism 2, that is, one end of the storage mechanism 3 is used as a rotating shaft, and the bed body 1 is lifted or lowered at the other end opposite to the storage mechanism 3 to realize opening and closing of the storage mechanism 3. According to the different positions of the storage opening, the flip mechanism 2 is arranged at the other end relative to the storage opening, and the flip mechanism 2 is arranged in parallel on both sides of the bed body 1. When storing items, only one end of the bed body 1 can be lifted with the flip mechanism 2 as a fulcrum to store items, so as to make full use of the space under the bed, improve the utilization rate of the bedroom space, increase the storage space, and make the bedroom more tidy as a whole.

[0033] Preferably, the flipping mechanism 2 is arranged at the other end opposite to the opening end. The closer to the end point of the end, the larger the storage opening will be after being lifted, and it will be easier to store large items.

[0034] The storage mechanism 3 can be made by enclosing plate materials. Four plates are selected to be placed vertically and connected end to end to form a cube. A plurality of curved plates can also be used to form a cylinder, an ellipsoid or other irregular three-dimensional structure. The height of the storage mechanism 3 depends on the height of the plates. Finally, the bottom is closed with a plate material that matches the bottom opening of the cube to form a storage mechanism 3 with an upper opening.

[0035] Specifically, a through hole is provided on the side wall of the storage mechanism 3, and a ventilation mechanism is provided in the through hole.

[0036] The storage mechanism 3 is generally in a closed or semi-closed state, and the air flow is poor. Especially when it is in a closed state and there are many items inside, the storage mechanism 3 is poorly ventilated and humid, which easily breeds bacteria and causes mildew. In addition, in addition to accelerating the air flow in the space under the bed body 1, the ventilation mechanism is also beneficial to the heat dissipation of the entire bed body 1, especially when it is used with a breathable mattress, it is beneficial to the heat dissipation of the mattress and keeps the user's back breathable.

[0037] Specifically, it also includes: an isolating member, which is arranged at the opening of the storage mechanism 3.

[0038] The opening of the storage mechanism 3 is closed by the partition to shield the items in the storage mechanism 3. When the bed body 1 is working, external items are prevented from falling into the storage mechanism 3, dust is prevented from entering, the interior of the storage mechanism 3 is kept clean, and people cannot see the items in the storage mechanism 3, which is more beautiful. The partition can be a telescopic partition board.

[0039] like Figure 2 As shown, the flip mechanism 2 includes: a first support member 21 and a second support member 22; the two ends of the first support member 21 are pivotally connected to the bed body 1 and the storage mechanism 3 respectively, and the two ends of the second support member 22 are pivotally connected to the bed body 1 and the storage mechanism 3 respectively, and the first support member 21 and the second support member 22 are arranged in sequence along the direction from the rotating axis to the opposite end of the bed body 1.

[0040] The length of the first support member 21 is shorter than that of the first support member 22, which can limit the height of the bed 1. The first support member 21 and the second support member 22 cooperate with each other to realize the stable lifting and lowering of the bed 1, thereby improving the overall support strength of the bed 1.

[0041] like Figure 2As shown, the flip mechanism 2 also includes: a third support member 23 and a fourth support member 24; wherein, the two ends of the first support member 21 are pivotally connected to one end corresponding to the third support member 23 and the fourth support member 24, respectively, and the two ends of the second support member 22 are pivotally connected to the other end corresponding to the third support member 23 and the fourth support member 24, respectively; in the closed state, the third support member 23 is arranged in parallel on the bottom surface of the bed body 1, and the fourth support member 24 is arranged on the storage mechanism 3 and parallel to the third support member 23; the angle between the first support member 21 and the fourth support member 24 is an obtuse angle, and the angle between the second support member 22 and the fourth support member 24 is an acute angle.

[0042] The first support member 21, the second support member 22, the third support member 23 and the fourth support member 24 are connected end to end. Since the four support members are of different lengths, they are in an irregular quadrilateral shape. When the mass of the bed body 1 is large, the turning mechanism 2 is required to be able to withstand a large weight, maintain the stability of the lifting process, and avoid large ups and downs. In addition, the newly added third support member 23 and the fourth support member 24 are conducive to dispersing the weight of the bed body 1, reducing the pressure at the connection point between the first support member 21 and the second support member 22 and the storage mechanism 3, and preventing excessive pressure from damaging the storage mechanism 3.

[0043] Preferably, a four-bar linkage in a low-pair mechanism can be used, in which four rigid support members are connected by low-pair links, and each moving component moves in the same plane. This structure is surface contact, has low pressure, large bearing capacity, is impact-resistant, and is easy to process. It can further optimize the bearing capacity and impact resistance of the flip mechanism 2, and can meet the design requirements of different motion trajectories by adjusting the relative length of the components, which is convenient for customization according to customer needs.

[0044] Furthermore, the flipping mechanism 2 also includes: a first driving mechanism 25; wherein the third support member 23 is provided with an extension portion 26 extending in the direction from the rotation axis to the opposite end of the bed body; the two ends of the first driving mechanism 25 are respectively pivotally connected to the extension portion 26 and the second support member 22; the first driving mechanism 25 is used to push the bed body to rotate upward along the rotation axis close to the side wall of the storage mechanism 3.

[0045] When the bed 1 is heavy, it is relatively difficult to lift it only by human strength. Without changing the connection relationship between the first support member 21, the second support member 22, the third support member 23, and the fourth support member 24, the third support member 23 extends toward the storage port to form an extension portion 26, and then the first drive mechanism 25 is connected to the support structure to lift or lower the bed 1. The user can lift or lower the bed 1 effortlessly. In addition, the distance between the bed 1 and the side wall of the storage mechanism 3 close to the rotation axis is preferably controlled within 30 cm, so that the storage mechanism can obtain a larger storage space.

[0046] Preferably, the first driving mechanism 25 adopts a linear motor that performs linear motion.

[0047] The first driving mechanism 25 performs linear motion, which is equivalent to adding a variable-length support member to the supporting structure, which can optimize the force of the structure and provide power. The solution is simple to implement and avoids a more complicated transmission structure. For example, the gas rod or straight rod motor, the gas rod and the push rod motor all perform linear motion, and the lifting and lowering motion does not require a complex transmission mechanism, and can be directly installed and used, reducing the loss of driving force.

[0048] Furthermore, the bed body 1 includes: a base 13, a support mechanism 12 and at least two bed boards; the support mechanism 12 is arranged between the base 13 and the bed boards; when the bed body 1 is in an extended state, the projection of the support mechanism 12 on the side of the bed body 1 falls within the range of the side cross section of the bed body 1.

[0049] The bed board 11 is generally composed of a plurality of irregular bed boards, which are pivotally connected to each other at the junction and arranged horizontally on the top of the base 13. The extended state of the bed body 1 is that the bed board is laid flat on the top surface of the base 13. At this time, the support mechanism 12 is in a contracted state, and the bed body 1 has the smallest volume and the thinnest thickness. The plurality of bed boards can be deformed through the support mechanism 12 to better adapt to the curve of the human body and increase comfort.

[0050] Figure 3 FIG. 1 is a bottom view of the structure of the bed body according to the first embodiment of the present invention. Figure 3As shown, further, the bed board 11 includes: a first bed board 111, a second bed board 112, a third bed board 113 and a fourth bed board 114, and the supporting mechanism 12 includes: a second driving mechanism 5, a first connecting rod 6, a second connecting rod 7, and a pulley assembly 8; wherein, the first bed board 111, the second bed board 112, the third bed board 113 and the fourth bed board 114 are pivotally connected at the intersection in sequence with the rotation axis as the starting point and are horizontally arranged on the top of the base 13; the two ends of the second driving mechanism 5 are pivotally connected to the base 13 and the first connecting rod 6 respectively, the horizontal direction of the thrust of the second driving mechanism 5 is the same as the horizontal movement direction of the first pulley 82 to the second pulley 83, the first connecting rod 6 is parallel to the rotation axis, and the second connecting rod 7 is fixed on the base 13 and parallel to the first connecting rod 6; the pulley assembly 8 includes: a support rod 81, a first pulley 82 and a second pulley 83; the first pulley 82 is pivotally connected to one end of the support rod 81, the second pulley 83 is pivotally connected to the middle part of the support rod 81, and the other end of the support rod 81 is pivotally connected to the second connecting rod; the middle part of the support rod 81 protrudes toward the bed board 11 at an obtuse angle, when the bed board 11 is in the extended state, the second pulley 83 contacts the bed board and can slide on the bottom surface of the bed board, when the bed board 11 is deformed, the first pulley 82 and the second pulley 83 both contact the bed board 11 and can slide on the bottom surface of the bed board 11; the pulley assemblies 8 are respectively provided at both ends of the first connecting rod 6, the support rod 81 is located between the pivot connection point of the second connecting rod 7 to the second pulley 83 and is vertically connected to both ends of the first connecting rod 6.

[0051] Figure 6 It is a schematic diagram of the local structure of the supporting component in the present invention, such as Figure 6 As shown, the support rod 81 can adopt a curved structure, that is, the middle part is obtuse, and the obtuse angle is preferably about 150 degrees. When the second driving mechanism 5 is working, it drives the first connecting rod 6 to rotate with the second connecting rod 7 as the axis, and the second pulley 83 follows and slides on the corresponding bed board to push the bed board to flip. When the bed board flips to 20 to 30 degrees relative to the base 13, the first pulley 82 also contacts the bottom surface of the corresponding bed board and can slide on the bottom surface of the bed board 11. When there is only one pulley, there will be very large resistance when the bed board flips 20 to 30 degrees. Adding another pulley can overcome this resistance and ensure that the bed board 11 flips smoothly.

[0052] When the support mechanism 12 is responsible for pushing the third bed board 113, the third bed board 113 is connected to the second connecting rod 7 ( Figure 3The lower end of the bed board 111 is flipped as the rotating shaft, and the horizontal direction of the flipping is the same as the horizontal direction from the first pulley 82 to the second pulley 83; in addition, if the third bed board 113 is provided with a fourth bed board 114 in the horizontal direction from the second pulley 83 to the first pulley, and one end of the fourth bed board 114 is pivotally connected to it, then the pivotally connected end of the fourth bed board 114 and the third bed board 113 will also follow the third bed board 113 to flip relative to the base 13. At this time, only one supporting mechanism 12 can cause the two pivotally connected bed boards to flip and deform together; furthermore, a third connecting rod can be added to the other end of the fourth bed board 114, which is pivotally connected to the base 13 through the third connecting rod. When the third bed board 113 is flipped to a certain angle, the other end of the fourth bed board 114 will flip to 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. Too long or too short will cause the other end of the fourth bed board 114 to be unable to flip and lift. In this way, the internal supporting mechanism 12 of the bed body 1 can be reduced without affecting the flipping function of the bed board 11 , and the weight of the bed body 1 can be reduced, the volume of the bed body 1 can be reduced, and the production cost can be reduced.

[0053] Furthermore, the lengths and positions of the gravity arm, the first resistance arm, and the second resistance arm in the horizontal direction of the support mechanism 12 in the extended state are adjusted according to the following formulas (1) and (2) to reduce the length of the power arm in the vertical direction of the support mechanism 12 in the extended state:

[0054] F1=(G×L3)÷L1 (1);

[0055] L2>(F1×L4)÷F (2);

[0056] Wherein, L1 represents the first resistance arm, L2 represents the power arm, L3 represents the gravity arm, L4 represents the second resistance arm, G represents the weight of the bed board, F represents the thrust, and F1 represents the resistance;

[0057] Wherein, the first resistance arm is above the second resistance arm.

[0058] The resistance F1 is the force perpendicular to the base 13 starting from the contact point between the second pulley 83 and the bed board, the weight G is the gravity perpendicular to the midpoint of the bed board contacted by the second pulley 83, the gravity arm L3 is the straight-line distance from the midpoint of the bed board contacted by the second pulley 83 to the rotation axis of the bed board, the resistance arm L1 is the straight-line distance from the contact point between the second pulley 83 and the bed board to the rotation axis of the bed board, and the power arm L2 is the straight-line distance from the connection point between the support rod 81 and the second connecting rod to the extension line of the thrust F.

[0059] The length of the power arm L2 is directly proportional to the thickness of the support mechanism 12, that is, the shorter the power arm L2 is, the thinner the support mechanism 12 is, which in turn affects the thickness of the bed 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. When the resistance is reduced, the length of the second resistance arm is reduced to further reduce the length of the power arm, etc. When F<3000N and G>1285N, that is, when the bed bears the weight of the human body, through force analysis, simulate the change of the force arm position, calculate the change of force, find the best force arm, optimize the force arm structure of the bed 1, reduce the thickness of the bed 1, and make it thinner.

[0060] Figure 4 This is a schematic diagram of the side structure of the bed structure of the second embodiment of the present invention. Figure 5 FIG. 2 is a schematic diagram of a side perspective structure of a bed structure according to Embodiment 2 of the present invention. Figure 4 and Figure 5 As shown, in addition, the support mechanism 12 for driving the first bed board 111 to flip can be optimized. No separate driving mechanism is set between the storage mechanism 3 and the bed body 1, but the driving mechanism in the bed body 1 is connected with the storage mechanism 3 to drive the bed body 1 to flip relative to the storage mechanism 3. The aforementioned "the two ends of the second driving mechanism 55 are respectively pivotally connected to the base 13 and the second connecting rod 7" is changed to "the two ends of the third driving mechanism 9 are respectively pivotally connected to the storage mechanism 3 and the second connecting rod 7", and at the same time, a locking mechanism 10 is fixed on the first bed board 111, which is used to fix the first bed board 111 and the base 13. In this way, when the locking mechanism 10 is locked, the third driving mechanism 9 can drive 9 to lift the entire bed body 1; when the locking mechanism 10 is not locked, the third driving mechanism 9 can drive the first bed board 111 to be lifted. The driving device and weight required for the structure of the bed body 1 are reduced, and the cost is also saved.

[0061] Furthermore, a load-bearing portion 31 is provided on the inner wall of the storage mechanism 3 , and the distance between the load-bearing portion 31 and the opening is less than or equal to the thickness of the bed body 1 .

[0062] When the bed 1 is not lifted, the bed 1 is parallel to the storage mechanism 3, and the load-bearing part 31 can provide support for the bed 1 to prevent the bed 1 from falling, and can also protect the flip mechanism 2 from being damaged. The distance between the load-bearing part 31 and the opening is less than or equal to the thickness of the bed 1, so that a larger storage space can be obtained. For example, the load-bearing parts 31 are respectively set at the four corners of the storage mechanism 3, and the distance between the load-bearing part 31 and the opening is equal to the thickness of the bed 1, so that the bed 1 can be placed in the opening of the storage box. With the support of the load-bearing part 31, the bed 1 can be placed squarely in the opening of the storage mechanism 3, and the pressure on the flip mechanism 2 in the non-lifting state is also reduced. At the same time, the bed 1 is placed in the opening of the storage mechanism 3, which is more beautiful as a whole.

[0063] refer to Figure 1 As shown, further, the structure of the bed body 1 also includes: a fixing member 4, and the fixing member 4 is arranged on the top of the bed body 1.

[0064] At least one fixing part 4 is provided. When the bed body 1 is in use, it will be equipped with a mattress. Considering that when storing items, the mattress will slide down after the bed body 1 is flipped to a certain height, a fixing part 4 is added to fix the mattress to prevent the mattress from sliding. The fixing part 4 can be an anti-slip rod, Velcro, etc. When an anti-slip rod is used, it is best to set an anti-slip rod at both ends of the flipping direction of the bed body 1 to prevent the bed body 1 from flipping or the bed board 11 from flipping and causing the mattress to move relative to the bed body 1; when Velcro is used, it can be set on the top surface of the bed board 11, preferably on the upper surface of the bed board 11 farthest from the rotation axis, when the bed board flips to the highest point, it can prevent the mattress from sliding down and squeezing the mattress. In addition, the Velcro is preferably set on the foot board. If it is set on the head, the Velcro will be pulled off, and this problem does not exist if it is set on the foot board.

[0065] Furthermore, the bed body 1 structure also includes: a power cord; wherein the power cord includes: a power post, a transformer, a wire, and a connector; the power post is connected to the transformer and is in an "L" shape, the transformer is connected to one end of the wire, the natural extension direction of the wire is perpendicular to the power post, one end of the connector is connected to the other end of the wire, and the connector is in an "L" shape.

[0066] Traditional power cords are mostly plug-in type and have a transformer adapter in the middle of the power cord, similar to a laptop power cord. If the power cord falls to the ground, it will affect the appearance. There are also problems such as the power plug cannot be inserted to the end, the plug tail is too long, the power cord is too short and the storage box cannot be placed against the wall. Using a new power cord with a plug and an L-shaped interface can solve this problem well, which is convenient and beautiful.

[0067] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in this disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0068] It will be appreciated that the present invention is not limited to the exact construction that has been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof.

Claims

1. A bed structure, characterized in that: include: Bed body, turning mechanism and storage mechanism; The storage mechanism is provided with a hollow structure with an opening upward formed by side walls and a bottom wall; In a closed state, the bed covers the hollow structure; The flip mechanism is disposed between the bed body and the storage mechanism, and in an open state, the flip mechanism causes the bed body to rotate upward along a rotation axis close to a side wall of the storage mechanism; The bed body comprises: a base, a support mechanism and at least two bed boards; The support mechanism is arranged between the base and the bed board; When the bed is in an extended state, the projection of the support mechanism on the side of the bed falls within the range of the side cross section of the bed; The bed board includes: a first bed board, a second bed board, a third bed board and a fourth bed board; the support mechanism includes: a second driving mechanism, a first connecting rod, a second connecting rod, and a pulley assembly; the pulley assembly includes: a support rod, a first pulley and a second pulley; Wherein, the first bed board, the second bed board, the third bed board and the fourth bed board are pivotally connected in sequence at the intersection with the rotation axis as the starting point and are horizontally arranged on the top of the base; The two ends of the second driving mechanism are respectively connected to the base and the first connecting rod pivotally, the horizontal direction of the thrust of the second driving mechanism is the same as the horizontal movement direction from the first pulley to the second pulley, the first connecting rod is parallel to the rotation axis, and the second connecting rod is fixed on the base and parallel to the first connecting rod; The first pulley is pivotally connected to one end of the support rod, the second pulley is pivotally connected to the middle of the support rod, and the other end of the support rod is pivotally connected to the second connecting rod; The middle part of the support rod protrudes toward the bed board at an obtuse angle. When the bed board is in the extended state, the second pulley contacts the bed board and can slide on the bottom surface of the bed board. When the bed board is deformed, both the first pulley and the second pulley contact the bed board and can slide on the bottom surface of the bed board. The pulley assemblies are respectively disposed at both ends of the first connecting rod, and the support rod is located between the pivot connection point of the second connecting rod and the second pulley and is respectively vertically connected to both ends of the first connecting rod; The bed structure also includes: a power cord.

2. The bed structure according to claim 1, characterized in that: The side wall of the storage mechanism is provided with a through hole, and a ventilation mechanism is provided in the through hole.

3. The bed structure according to claim 2, characterized in that: Also includes: Isolation parts; The isolation member is arranged at the opening of the storage mechanism.

4. The bed structure according to claim 1, characterized in that: The flipping mechanism comprises: a first support member and a second support member; The two ends of the first support member are respectively pivotally connected to the bed body and the storage mechanism, the two ends of the second support member are respectively pivotally connected to the bed body and the storage mechanism, and the first support member and the second support member are sequentially arranged along the direction from the rotating axis to the opposite end of the bed body.

5. The bed structure according to claim 4, characterized in that: The flipping mechanism further includes: a third support member and a fourth support member; Wherein, the two ends of the first support member are respectively pivotally connected to one end corresponding to the third support member and the fourth support member, and the two ends of the second support member are respectively pivotally connected to the other end corresponding to the third support member and the fourth support member; In the closed state, the third support member is arranged parallel to the bottom surface of the bed body, and the fourth support member is arranged on the storage mechanism and is parallel to the third support member; The included angle between the first support member and the fourth support member is an obtuse angle, and the included angle between the second support member and the fourth support member is an acute angle.

6. The bed structure according to claim 5, characterized in that: The flipping mechanism further comprises: a first driving mechanism; Wherein, the third support member is provided with an extension portion extending in the direction from the rotation axis to the opposite end of the bed body; the two ends of the first driving mechanism are pivotally connected to the extension portion and the second support member respectively; The first driving mechanism is used to push the bed body to rotate upward along a rotation axis close to the side wall of the storage mechanism.

7. The bed structure according to claim 1, characterized in that: The lengths and positions of the gravity arm, the first resistance arm and the second resistance arm of the support mechanism in the extended state are adjusted according to the following formulas (1) and (2) to reduce the length of the power arm of the support mechanism in the extended state: F1 = (G × L3) ÷ L1 (1); L2>(F1×L4)÷F (2); Wherein, L1 represents the first resistance arm, L2 represents the power arm, L3 represents the gravity arm, L4 represents the second resistance arm, G represents the weight of the bed board, F represents the thrust, and F1 represents the resistance; Wherein, the first resistance arm is above the second resistance arm.

8. The bed structure according to claim 1, characterized in that: A load-bearing portion is provided on the inner wall of the storage mechanism, and the distance between the load-bearing portion and the opening is less than or equal to the thickness of the bed body.

9. The bed structure according to claim 1, characterized in that: The bed structure also includes: a fixing part, which is arranged on the top surface of the bed.

10. The bed structure according to claim 1, characterized in that: The power cord includes: a power pole, a transformer, a conductor, and a connector; The power post is connected to the transformer and is in an "L" shape. The transformer is connected to one end of the wire. The natural extension direction of the wire is perpendicular to the power post. One end of the connector is connected to the other end of the wire and the connector is in an "L" shape.

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