CN216754009U - Bedstead, tail bed body and combined lifting electric bed - Google Patents

Abstract

The utility model provides a bed frame, a tail bed body and a combined lifting electric bed, which comprises a first transverse frame, a second transverse frame, a first longitudinal frame and a second longitudinal frame; the second longitudinal frame is formed by integrally forming a middle part, a first extending part and a second extending part; the first transverse frame, the second transverse frame, the first longitudinal frame and the second longitudinal frame enclose a polygon; the first longitudinal frame and the second longitudinal frame are sequentially distributed from the head of the bed to the tail of the bed; supporting devices are respectively arranged on the outer sides of the enclosing frames of the first transverse frame and the second transverse frame; the supporting device is movably connected with the first transverse frame and the second transverse frame. In a use state, after the electric bed with the same length is disassembled and packed, the packing size is smaller; under the condition of not influencing the operation of the motor, the bed leg is adaptive, and the packing size of the whole bed is further reduced.

Description

Bedstead, tail bed body and combined lifting electric bed

Technical Field

The utility model relates to an electric bed, in particular to a detachable electric bed.

Background

UPS transportation in the American market is divided into two standards of 165 'and 130', the transportation cost difference is very large and is about four hundred yuan, and the existing profit margin is very considerable. The UPS package size is calculated by the package length +2 package width +2 package height, and the most common Queen size (1524x2032) bed after package is finished can not meet the UPS requirement. At present, in order to meet the packaging standard of 130 ″, the prior art is named 202021786184.6 patent named as "electric lifting bed and combined lifting bed applied thereto", the electric lifting bed is divided into three parts, and a middle connecting rod and an enclosing frame are used for connecting a head bed body and a tail bed body, so that the whole bed can be mounted and dismounted.

As shown in fig. 1, only when the connection line of the hinge point of the motor and the bed board is above the connection line of the rotation point of the bed board and the motor, the bed board can normally rotate under the pushing of the motor. In order to enable the foot motor to have enough force arm, the connecting point of the motor and the frame needs to move downwards, so that the motor needs to protrude out of the bottom surface of the frame, and the height of the bed legs needs to be increased; meanwhile, in order to lift the bed frame by a certain angle, the stroke of the motor must meet the manufacturing range of the motor, namely the installation size of the motor is more than or equal to the motor stroke plus the minimum size (not telescopic) of the motor. Therefore, the overall frame size needs to be lengthened, so that the size of the entire electric bed becomes longer.

In summary, the prior art has the following disadvantages:

1. the height of the bed legs needs to be increased in order to obtain a sufficient force arm by the existing driving motor; under the same load and the same thrust condition, the motor needs more space in the height direction.

2. During packaging, the protruding part of the bed body is difficult to package, and the filling with the corresponding height (the packaging size is increased) or the bottom protrusion of the bed is disassembled, so that the mounting difficulty is improved.

3. In order to meet the operation range of the motor, the installation size of the motor can enable the size of the bedstead for installing the motor to be correspondingly lengthened, and therefore the length of the whole electric bed used after the electric bed is assembled is lengthened. After the electric bed is disassembled and packed, the packing size is still not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a beddo which has the advantages that in the using state, after the beddo with the same length is disassembled and packed, the packing size is smaller; under the condition of not influencing the operation of the motor, the height of the bed legs is reduced, and the packing size of the whole bed is further reduced.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a bed base comprising a frame and a support means; two sides of an enclosure frame formed by the frame are respectively provided with a supporting device which is parallel to each other; the support means may be used to extend the length of the frame.

Further, the frame comprises a first transverse frame, a second transverse frame, a first longitudinal frame and a second longitudinal frame; the second longitudinal frame is formed by integrally forming a middle part, a first extending part and a second extending part; the first transverse frame, the second transverse frame, the first longitudinal frame and the middle part enclose a polygonal frame; the first longitudinal frame and the second longitudinal frame are sequentially distributed from the head of the bed to the tail of the bed; the supporting device is movably connected with the first transverse frame and the second transverse frame.

Furthermore, the supporting device can rotate by 360 degrees by taking the connecting point as an axis; when the supporting device is placed towards the bed tail to be positioned at the same horizontal line with the transverse frame, the supporting device can be lapped on the first extending part and the second extending part, and the length of the supporting device ac is larger than the length ab from the connecting end to the second longitudinal frame.

Furthermore, the supporting device can rotate by 360 degrees by taking the connecting point as an axis; the cross section of the supporting device is provided with a round hole, the first transverse frame and the second transverse frame are correspondingly provided with a through hole with the same size, when the supporting device is placed towards the direction of the bed tail and is positioned at the same horizontal line with the transverse frames, the circle center of the supporting device and the circle center of the transverse frames are positioned at the same point, and the round hole and the through hole can be inserted by screws or pins to fix the position of the supporting device.

Furthermore, a slot part is sleeved outside the supporting device, and the supporting device can slide back and forth in the slot part and can be used for prolonging the length of the frame.

Further, the supporting device is detachably connected with the transverse frame.

Furthermore, the tail ends of the first transverse frame and the second transverse frame are arranged to be of a hollow structure, so that the supporting device can be inserted into the hollow structure and can be pulled in and out, and the extension and contraction of the length of the frame are realized.

Furthermore, the supporting device consists of a rod part and a supporting part, one end of the rod part is hinged with the transverse frame, and the other end of the rod part is fixedly connected with the supporting part; the supporting part can be a rigid casting.

Furthermore, the supporting part can be a roller device, which not only can play a better supporting role when the electric bed is used; when the frame is lifted and vertical to the ground, the rollers in the roller device are contacted with the ground, the side surfaces of the rollers are fixed by screws or pins, and the bedstead can be pushed to move on the ground by manpower.

Further, a tail bed body comprises any one of the bed frames as described above, and a leg support arranged on the bed frame, wherein the leg support is movably connected with the bed frame; a leg driving mechanism for driving the leg support to lift is connected in the bed frame; the leg support is a hinged structure, and when the leg support is not in a hinged state and is in a flat state, the length of the whole structure of the leg support is limited by the whole length of the bedstead; and a bed plate mechanism is connected to the leg support.

Furthermore, one end of the leg support is hinged to the first longitudinal frame, and the other end of the leg support can freely lift.

Further, the bed board mechanism is divided into a first bed board and a second bed board which are distributed side by side from left to right; the first bed board and the second bed board are independent bed boards and are detachably connected onto the leg support, and the first bed board and the second bed board can be matched with the leg support in a hinged or lifting state in size.

Further, the end of the second bed board towards the tail part exceeds or is flush with the limit position of the first supporting device and the second supporting device placed towards the tail part of the bed.

Furthermore, a lifting device is arranged below the tail part of the second bed board, and when the leg support is lifted, the lifting device can lift the supporting device together with the leg support, so that the length ac of the supporting device does not exceed the tail limit position of the second bed board.

Further, a combined lifting electric bed comprises any one of the tail bed body, the head bed body and the middle bed body; the head bed body, the middle bed body and the tail bed body are sequentially connected from head to tail; the head bed body comprises a head frame and a back support arranged on the head frame, and the back support is hinged with the head frame; a back driving mechanism for driving the back support to lift is connected in the head frame; the back support is connected with a back plate; the middle bed body comprises a first connecting rod and a second connecting rod which are arranged in parallel along the length direction of the electric bed, and the upper part of the first connecting rod and the upper part of the second connecting rod are detachably connected with the middle bed board.

Further, the header frame is a polygon formed by a third longitudinal frame, a fourth longitudinal frame, a third transverse frame and a fourth transverse frame; through hole devices are arranged at the joint of the outer sides of the enclosing frames of the third transverse frame and the fourth transverse frame and the middle bed body; the butt joint of the outer sides of the enclosing frames of the first transverse frame and the second transverse frame and the middle bed body of the tail frame is provided with a through hole device.

Furthermore, one end of the middle bed body is detachably connected with the head bed body through the first connecting rod and the second connecting rod; the other end of the middle bed body is detachably connected with the tail bed body through the first connecting rod and the second connecting rod.

Further, the spacing distance between the first connecting rod and the second connecting rod is greater than or equal to the length of the first longitudinal frame and the length of the fourth longitudinal frame; pins are arranged at both ends of the edge of the first connecting rod and both ends of the edge of the second connecting rod, and the pins are vertically arranged and face to the opposite side of the middle bed plate; and the middle bed body, the head bed body and the tail bed body are connected by buckling the pin into the through hole device.

Furthermore, at least one first through hole is formed in the upper sides of the fourth longitudinal frame and the first longitudinal frame; second through holes corresponding to the middle bed plate in number and position are formed in the middle bed plate; and a shaft pin or a screw can be used for penetrating through the first through hole and the second through hole to be fixedly connected with the middle bed body, the head bed body and the tail bed body.

Further, the leg driving mechanism and the back driving mechanism each include: two sliding rods, a turnover rod and a driving part;

the two sliding rods are respectively arranged at two ends of the turnover rod and are in an H-like shape;

the middle part of the sliding rod protrudes towards the bed board to form an obtuse angle V shape, the head part of the sliding rod is provided with a rotatable first roller, the middle part of the sliding rod is provided with a rotatable second roller, and the tail part of the sliding rod is hinged with the frame;

the overturning rod is positioned between the middle part of the sliding rod and the tail part of the sliding rod;

two ends of the driving part are respectively hinged with the turnover rod and the frame, and the horizontal direction of the thrust of the driving part is the same as the horizontal direction from the first roller to the second roller;

the horizontal direction from the first roller to the second roller points to the rotating axis of the turnover device where the first roller and the second roller are located to drive the bed plate;

the rotation axes of the first roller, the second roller, the sliding rod, the back plate, the middle bed plate and the bed plate mechanism are parallel to each other.

Furthermore, the turnover rod is fixedly provided with a U-shaped ear flap, and the driving part is hinged with the turnover rod through the U-shaped ear flap.

Furthermore, a reinforced plate is arranged at the corner between the sliding rod and the turnover rod in the back driving mechanism; the reinforcing plate is arc-shaped.

Further, the bed frame and the bottom of the head frame are detachably connected with bed legs.

The beneficial effect of this scheme is:

1. through increasing strutting arrangement in bed tail frame both sides, can satisfy under the unchangeable condition of beddo overall length, with the bed body split back, reduce the size of packing size by a wide margin.

2. Through the non-interference structural design of the driving mechanism, when the motor operates, the motor cannot protrude to the bed bottom under the condition of meeting the lifting height of the bed board, and the motor cannot play any limiting role in selecting the height of the bed legs.

3. Through the setting of two connecting rod relative distances at the middle part bed body to set up the pin on the connecting rod, overlap the place head portion bed body, the afterbody bed body in proper order on middle part bed body board, through the fixed connection of pin and through-hole device and connecting rod and strutting arrangement's limit function, it is more convenient to make whole bed packing, and the volume demand is littleer, transports more easily.

4. By adopting the supporting device which adopts the roller, the bed frame can be easily moved on the ground by common manpower.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments thereof, made with reference to the following drawings:

fig. 1 is a side view of an electric bed manufactured in the background of the present invention;

fig. 2 is a perspective view of a frame for a bed according to embodiment 1 of the present invention;

FIG. 3 is a side view of the aft bed of example 1 of the present invention;

FIG. 4 is a perspective view of the aft bed of example 1 of the present invention;

fig. 5 is a perspective view of an electric bed as a whole in embodiment 1 of the present invention;

FIG. 6 is an enlarged view of a-a in detail in example 1 of the present invention;

fig. 7 is a perspective view of a drive mechanism in embodiment 1 of the utility model;

FIG. 8 is a rear perspective view of a bed in example 1 of the present invention;

FIG. 9 is a perspective view of the bed body of embodiment 1 of the present invention in a disassembled and packed state;

fig. 10 is a schematic view of a supporting force of the roller device according to embodiment 1 of the present invention;

fig. 11 is a side view 1 of a lifting device in embodiment 1 of the present invention;

fig. 12 is a side view 1 of a lifting device in embodiment 1 of the present invention;

fig. 13 is a perspective view 1 of a bed body of an electric bed in embodiment 2 of the present invention;

fig. 14 is a perspective view of a bed body of an electric bed in embodiment 2 of the present invention;

fig. 15 is a perspective view of a bed body of an electric bed in embodiment 2 of the present invention 3;

fig. 16 is a vertical erected perspective view of the frame in embodiment 1 of the present invention;

description of the reference numerals:

in the figure: 1. a frame; 11. a first horizontal frame; 12. a second horizontal frame; 13. a first vertical frame; 14. a second vertical frame; 141. an intermediate portion; 142. a first extension portion; 143. a second extension portion; 2. a support device; 21. a rod portion; 22. a support portion; a roller device; 3. a leg support; 4. a leg driving mechanism; 5. a bed plate mechanism; 51. a first bed plate; 52. a second bed plate; 6. a bed body; 7. a middle bed body; 71. a middle bed plate; 72. a first link; 73. a second link; 74. a pin; 8. a head bed body; 81. a header frame; 811. a third horizontal frame; 812. a fourth horizontal frame; 813. a third longitudinal frame; 814. a fourth longitudinal frame; 82. a back support; 83. a back drive mechanism; 84. a back plate; 91. a slide bar; 92. a roll-over bar; 93. a drive member; 94. a first roller; 95. a second roller; 96. a reinforcing plate; 97, U-shaped ear climbing; 10. a through hole arrangement; 211. a lifting device; 212. a positioning member; 131. a first through hole; 132. a second through hole; u-shaped through-hole device 151.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

Example 1

As shown in fig. 2, a frame for bed comprises a frame 1 and a supporting device 2; two sides of an enclosure frame formed by the frame 1 are respectively provided with a supporting device which is parallel to each other; the support means 2 may be used to extend the length of the frame 1. Through increasing strutting arrangement 2 in bedstead both sides, can prolong the length of whole bedstead when using, if do not use to pack up strutting arrangement 2, shortened the length of whole bedstead again, can reduce the packing size, convenient transportation reduces corresponding cost.

Further, the frame 1 includes a first horizontal frame 11, a second horizontal frame 12, a first vertical frame 13, and a second vertical frame 14; the second vertical frame 14 is integrally formed by an intermediate portion 141, a first extension portion 142 and a second extension portion 143; the first transverse frame 11, the second transverse frame 12, the first longitudinal frame 13 and the middle portion 141 enclose a polygonal frame, and the frame 1 in this embodiment 1 takes a conventional polygonal shape, preferably a rectangular shape; the first longitudinal frame 13 and the second longitudinal frame 14 are sequentially distributed from the head of the bed to the tail of the bed; as shown in fig. 2, the first transverse frame 11 and the second transverse frame 12 are provided with a support device 2 outside the enclosing frame respectively; the supporting device 2 is movably connected with the first transverse frame 11 and the second transverse frame 12; generally, the connection point of the supporting means 2 to the cross frame is arranged between the middle line and the end of the cross frame, which allows to reduce the length of the supporting means 2 itself in case the supporting means 2 is placed rearwards for extending the length of the whole frame 1.

In order to fully explain how the supporting device can prolong the length of the whole bed frame, the size of the detachable package can be reduced, and the technical effect is realized by the supporting devices in three different modes:

in the first mode, the supporting device 2 can rotate by 360 degrees with the connecting point as the axis; when the supporting device 2 is placed towards the end of the bed to be at the same horizontal line with the horizontal frame, the supporting device 2 can be lapped on the first extending portion 142 and the second extending portion 143, and the length ac of the supporting device 2 is greater than the length ab from the connecting end to the second longitudinal frame 14. The supporting means 2 extends backward the entire frame 1, and the length of the entire frame 1 in use can be increased. Meanwhile, if the bedstead 1 is packed, the supporting device 2 is rotated towards the bedside direction, the length ac of the supporting device 2 does not exceed the limit range of the whole bedstead 1 towards the bedside, and the length of the whole bedstead 1 is shortened; when in packaging, a packaging piece with smaller volume size can be adopted, so that the transportation is convenient, and the corresponding cost is reduced. The supporting device 2 can be detachably connected with the transverse frame, when the device is not used, the supporting device 2 can be taken down, the packing size is further reduced, and the device is convenient and quick.

In a second mode, the supporting device 2 can rotate by 360 degrees with the connecting point as an axis; the cross section of the supporting device 2 is provided with a round hole, the first transverse frame 11 and the second transverse frame 12 are correspondingly provided with a through hole with the same size, when the supporting device 2 is placed towards the tailstock direction and the transverse frames are positioned on the same horizontal line, the circle center of the supporting device and the circle center of the transverse frames are positioned on the same point, and the round hole and the through hole can be inserted by screws or pins to fix the position of the supporting device 2. The used screws or pins can be connected to the bedstead by using chains, can be inserted when the supporting device is used, and can be hung on the frame and are not easy to fall off when a rest happens.

In a third mode, a slot member is sleeved outside the first transverse frame 11 and the second transverse frame 12, and the supporting device 2 can be inserted into the slot member and can be extended and retracted back and forth, so as to adjust the length of the frame; as shown in fig. 11, alternatively, the ends of the first transverse frame 11 and the second transverse frame 12 are configured to have a hollow structure inside, so that the supporting device can be inserted into the hollow structure and can be pulled in and out, thereby extending and contracting the length of the frame.

As shown in fig. 3, further, the supporting device 2 includes: the rod part 21 and the support part 22, one end of the rod part 21 is hinged with the transverse frame, and the other end of the rod part 21 is fixedly connected with the support part 22; the support 22 may alternatively be a rigid casting. The supporting device 2 is connected to the outer sides of the two transverse frames in a traditional hinged mode, and 360-degree rotation of the supporting device can be achieved well. The rod part 21 and the supporting part 22 are integrally formed L-shaped castings, and the rigid castings can effectively support a bed board used in the later period.

Furthermore, the supporting portion 22 can be selected from a roller device 23, and is supported by rollers, so that not only the supporting force of the bed frame 1 on the bed board can be greatly improved, but also the stress range between the board and the supporting device 2 is reduced by the rollers, the damage to the bed board is prevented, and the service life of the bed board is prolonged.

As shown in fig. 16, the supporting portion 22 may be selected from a roller device 23, which not only can play a better supporting role in the use of the electric bed; when the frame is lifted and vertical to the ground, the rollers in the roller device are contacted with the ground, the side of the supporting part 22 is fixed by screws or pins, and the bedstead can be pushed to move on the ground by manpower. Therefore, the supporting rollers are in contact with the ground, the bed frame can be moved by common manpower, and the bed frame is convenient and labor-saving.

As shown in FIG. 4, a tail bed body 6 comprises a bed frame 1 as mentioned above, and a leg support 3 disposed on the bed frame 1, wherein the leg support 3 is movably connected with the bed frame 1; a leg driving mechanism 4 for driving the leg support 3 to ascend and descend is connected in the bedstead 1; the leg support 3 is a hinge structure, and when the leg support is in a flat state, the length of the whole structure of the leg support is limited by the whole length of the bedstead 1; the leg support 3 is connected with a bed plate mechanism 5. The tail bed body 6 with the supporting device 2 not only enables the whole tail bed body 6 to be capable of prolonging the length of the whole tail bed body when the electric bed is used, but also reduces the size of the tail bed body 6 when the electric bed is packaged. Especially, when the supporting device 2 with the roller part is used, the supporting force of the frame 1 on the bed plate is increased by 4 times in an integral way compared with the supporting device 2 without the supporting device, and the supporting performance is greatly improved.

The following is a calculated demonstration of the support roller: as shown in fig. 10, the bed plate mechanism 5 near the foot is stressed, and the magnitude of the two load forces is compared; f1 is the contact point of the maximum supporting point of the frame and the bed board at the tail part of the frame without a supporting device and the bed board; f2 is the point of maximum support of the frame to the plank at the point of contact of the support pulleys with the plank. The distance from the point G to the point G1 is 246, and the distance from the point G1 to the point F1 is 206; the distance from point G to point G2 is 380, and the distance from point G2 to point F2 is 72.

The calculation formula is as follows:

Gx246＝F1x206；

Gx380＝F2x72；

F1＝246/206G＝1.19G

F2＝380/76G＝5G

F2＝4.18F1。

so after the supporting wheels are added, the supporting performance is 4 times that of the supporting-free device.

Furthermore, one end of the leg support 3 is hinged to the first longitudinal frame 13, and the other end of the leg support can be lifted freely. When the leg support 3 does lifting movement, the leg support 3 and the bedstead are in a certain angle due to the hinged connection, and the requirement of a customer on the lifting angle is met.

Further, the bed plate mechanism 5 includes a first bed plate 51 and a second bed plate 52 which are distributed side by side from left to right; the first bed board 51 and the second bed board 52 are independent bed boards, and the two bed boards can be connected without connection, so that the bed boards are convenient to assemble, disassemble, fold and pack; and is detachably connected to the leg support 3, and the size of the first bed board 51 and the second bed board 52 can be adapted to the leg support in a hinged or lifting state. Due to the support means 2, the overall length of the second bedplate 52 does not need to be the same as that of the prior art, and must be the same as or slightly exceed the length of the bed frame 1. If the tail part of the bed board in the prior art greatly exceeds the tail part of the bed frame, the other end of the second bed board protrudes when the tail end of the second bed board is stressed due to the problem of supporting force, so that the using effect is influenced; or when a person lies on the bed, the pressure from the feet of the person can be applied to the bed plate above the frame part, and the pressure which the bed plate can bear is far less than the supporting force when the supporting device 2 is installed, and the specific formula about the supporting performance is detailed above. Therefore, the end of the second bedplate 52 towards the tail is further beyond or flush with the limit position of the support device 2 towards the tail. Thus, the short bed frame 1 and the long bed board mechanism 5 can be matched for use, and the bed frame is obviously improved compared with the prior art. And the size of the tail bed body 6 packaged after being disassembled is smaller, and the cost is saved.

Further, as shown in fig. 11 and 12, a lifting device 11 is disposed below the tail portion of the second bed board 52, and when the leg support 3 is lifted, the lifting device 11 can lift the supporting device 2 together with the leg support 3, so that the length ac of the supporting device 2 does not exceed the tail limit position of the second bed board 52, and the tail portion of the bed board is not exposed to touch the human body; not only plays a role of beauty and practicability, but also is safe and reliable.

As shown in fig. 5, a combined type lifting electric bed comprises any one of the above tail bed bodies 6, wherein the tail bed body 6 can be understood as the tail part of the whole electric bed body; the head bed body 8, the middle bed body 7 and the tail bed body 6 are sequentially connected from the head to the tail of the bed; the head bed 8 comprises a head frame 81 and a back support 82 arranged on the head frame 81, wherein the back support 82 is hinged with the head frame 81; a back driving mechanism 83 for driving the back support 82 to ascend and descend is connected in the head frame 81; a back plate 84 is connected to the back support 82, and the size of the back plate 84 is limited by the overall frame range of the back support 82; the middle bed body 7 comprises a first connecting rod 72 and a second connecting rod 73 which are arranged in parallel along the length direction of the electric bed, and the upper parts of the first connecting rod 72 and the second connecting rod 73 are detachably connected with the middle bed board 71. Divide into the triplex with whole bed body, through with the bedstead split into front and middle back triplex, realize that each bed body volume is minimum. The front part and the rear part can move independently, and the front part realizes back lifting movement; the rear part realizes the lifting movement of the legs. Take a 1500x2000 size bed frame as an example: the size of the existing double-folding mechanism is the size of a folded product: 1500x1000x 170; the size of the folded product of the mechanism is as follows: 1500x600x200, the volume of the original double folding mechanism is 1.417 times of the existing folding mechanism. Compared with the original product, the space utilization of the improved combined type lifting electric bed is improved by 41.7 percent.

As shown in fig. 8, the header frame 81 further includes a polygon formed by a third vertical frame 813, a fourth vertical frame 814, a third horizontal frame 811, and a fourth horizontal frame 812; through hole devices 10 are arranged at the joint of the outer sides of the enclosing frames of the third transverse frame 811 and the fourth transverse frame 812 and the middle bed body 7; the joint of the outer side of the enclosing frame of the first transverse frame 11 and the second transverse frame 12 and the middle bed body 7 is provided with a through hole device 10.

Furthermore, one end of the middle bed 7 is detachably connected with the head bed 8 through the first connecting rod 72 and the second connecting rod 73; the other end of the middle bed body 7 is detachably connected with the tail bed body 6 through the first connecting rod 72 and the second connecting rod 73. The three bed bodies are connected by arranging bulges at two ends of the first connecting rod 72 and the second connecting rod 73 of the middle bed plate and downwards inserting into the through hole devices 10 arranged on the head frame 81 and the tail frame 1; then, the back bed plate 84 is detachably connected with the back support 82, and the leg support 3 is detachably connected with the bed plate mechanism 5 (bed tail), so that the back plate 84, the middle bed plate 71 and the bed plate mechanism form an integral bed plate when the electric bed is not driven to lift.

Then, the distance between the first link 72 and the second link 73 is greater than or equal to the length of the first longitudinal frame 13 and the fourth longitudinal frame 814; as shown in fig. 6, pins 74 are mounted at both ends of the edge of the first link 72 and both ends of the edge of the second link 73, and the pins 74 are vertically mounted and face to opposite sides of the middle bed plate 71; the connection of the middle bed 7, the head bed 8 and the tail bed 6 is accomplished by snapping the pin 74 into the through hole device 10.

The difference between the top surface of the through hole device 10 and the top surfaces of the first vertical frame 13 and the fourth vertical frame 814 is less than or equal to the length of the pin.

The middle bed body 7 is composed of double connecting rods arranged on the middle bed plate 71; when the whole bed is connected, the front frame and the rear frame are controlled by the pin 74 on the connecting rod to fix the positions of the front frame and the rear frame; meanwhile, the middle bed plate 71 and the front and rear frames are fixedly connected by screws, and the upper and lower positions of the middle bed plate 71 and the front and rear frames are controlled. Because the connecting rods are arranged on the middle bed plate in parallel and are used for being lapped with the bed frames of the front part and the rear part; in practical use, the middle bed body 7 does not need to be additionally provided with bed legs or bed legs below the middle bed body, so that the support of the bed plate is enhanced.

The connecting rod also has certain wonderful use when the whole bed is disassembled and packed. As shown in fig. 9, the connecting rods of the middle bed plate are firstly placed on the ground with the surfaces facing upwards, and then the head bed 8 (without the back plate 84) and the tail bed 6 (without the bed plate mechanism 5) are sequentially stacked above the middle bed plate 71, because the head bed 8 is provided with the through hole devices 10, and the distance between the first connecting rod 72 and the second connecting rod 73 is just the length of the longitudinal frame, the through hole devices 10 at the two sides of the head frame 81 can be just inserted into the pins 74 on the connecting rods, so that the left and right displacement of the head bed 8 can be limited during packing, and the head bed 8 and the middle bed 7 can be well and fixedly connected. Further, the tail bed body 6 is arranged on the head bed body 8 and the middle bed body 7 which are fixedly connected; the supporting devices 2 at the two sides of the bedstead 1 (tail) are descended to be arranged at the two sides of the lower head bed body 8, so that the relative positions of the tail bed body 6 and the head bed body 8 can be limited, the middle bed body 7, the head bed body 8 and the tail bed body 6 are connected into a whole, and the conditions of left and right displacement and the like can not occur. The volume of the whole package is smaller; later in the parcel transportation way, stability is higher, can not produce and control the displacement and lead to the scattering problem of whole product in the transportation.

As shown in fig. 5 and 6, at least one first through hole 131 is further formed on the upper sides of the fourth vertical frame 814 and the first vertical frame 13; second through holes 132 corresponding to the middle bed plate in number and position are formed in the middle bed plate; the middle bed 7, the head bed 8 and the tail bed 6 can be reinforced and connected by using a shaft pin or a screw through the first through hole 131 and the second through hole 132. When the whole bed is installed, pins 74 of the middle bed board 71 are buckled on the through hole devices 10 on the head and tail frames to be fixed, 2-3 first through holes can be added on the first longitudinal frame 13 and the fourth longitudinal frame 814, the corresponding number of second through holes are arranged on the connecting rods of the middle bed board, and screws or shaft pins are screwed in to connect the head bed body 8, the middle bed body 7 and the tail bed body 6 in a reinforcing mode. The whole bed has stronger structure and is more stable when in use.

As shown in fig. 7, further, each of the leg driving mechanism 4 and the back driving mechanism 83 includes: two slide bars 91, a turn-over bar 92, and a driving member 93; the two sliding rods 91 are respectively arranged at two ends of the turnover rod 92 and are in an H-like shape; the middle part of the sliding rod 91 protrudes towards the bed board to form an obtuse angle V shape, the head part of the sliding rod 91 is provided with a rotatable first roller 94, the middle part of the sliding rod 91 is provided with a rotatable second roller 95, and the tail part of the sliding rod 91 is hinged with the frame; the turnover rod 92 is positioned between the middle part of the sliding rod 91 and the tail part of the sliding rod 91; two ends of the driving component 93 are respectively hinged with the turning rod 92 and the frame, and the horizontal direction of the thrust of the driving component 93 is the same as the horizontal direction from the first roller 94 to the second roller 95; the horizontal direction from the first roller 94 to the second roller 95 points to the rotation axis of the turnover device driving the bed plate; the rotation axes of the first roller 94, the second roller 95, the sliding rod 91, the back plate 84, the middle bed plate, and the bed plate mechanism 5 are parallel to each other. Both the leg drive mechanism 4 and the back drive mechanism 83 can adopt such a structure. The sliding rod 91 is hinged with the base, and the sliding rod 91 adopts a bending structure, namely, the middle part of the sliding rod is an obtuse angle which is 120-170 degrees. When drive unit 93 promoted the bed board upset, upset pole 92 drives slide bar 91 and uses slide bar 91 and base pin joint to rotate as the pivot, second gyro wheel 95 rolls on the bed board bottom surface that corresponds, promote corresponding bed board and upwards overturn for the base, overturn to 20 when to 30 for the base at the bed board that is promoted, first gyro wheel 94 just rolls with bed board bottom surface contact and at its bottom surface, only during a gyro wheel, very big resistance can appear when 20 to 30 of supporting component upset, add another gyro wheel and can overcome this resistance, guarantee the steady upset of bed board, and this drive arrangement's structure has reduced the thickness of intelligent bed, the intelligence bed is thinner.

Furthermore, a U-shaped ear flap 97 is fixedly arranged on the turnover rod 92, the driving part 93 is hinged with the turnover rod 92 through the U-shaped ear flap 97, and a reinforced plate 96 is arranged at the corner between the sliding rod 91 in the back driving mechanism 83 and the turnover rod 92; the reinforcing plate 96 has an arc shape. Through arc reinforcing plate and U-shaped ear joint use, can make reinforcing actuating mechanism's structure, it is more stable firm when using, also convenient production and constitution.

The driving structure design in this embodiment is called a bed bottom non-interference driving mechanism, which has the following technical advantages over the prior art: (1) in the prior art, when the whole bed body is installed, the height of the used bed legs is limited by the bed, and the minimum height of the bed legs is more than or equal to the height of the motor protruding out of the bottom surface of the bed; the existing interference-free driving mechanism does not protrude out of the bottom surface of the bed, the selection surface of the bed legs is large, and the adaptability of the whole bed body to the bed legs is higher. (2) When the package is disassembled, the protruding part of the bed body of the driving mechanism in the prior art is difficult to package, and the filling material with corresponding height (increasing the package size) needs to be filled or the bottom protrusion is disassembled, so that the installation difficulty is improved. When the bed is packaged at present, the bed bottom surface has no protrusion, so that the bed can be packaged only by adopting a conventional packaging box. (3) In the prior art, the working surface of the motor protrudes out of the bed bottom, the requirement on the adaptability of the enclosure frame of the bed body is higher, and objects are not allowed to exist at the protruding bottom surface of the motor and on the motion track. More bed frames can be matched at present, and the adaptability is higher.

Further, the bed frame 1 is detachably connected to the bottom of the head frame 81 with bed legs. Based on the use of the bed bottom interference-free driving mechanism, more types of bed legs can be selected to be matched with the electric bed.

Example 2

As shown in fig. 13, 14 and 15, in this embodiment, the electric bed is assembled by fixedly connecting the middle bed body with the head bed body and detachably connecting the middle bed body with the tail bed body.

Specifically, the through-hole devices of the third transverse frame 811 and the fourth transverse frame 812 of the frame body 8 are u-shaped and are hinged to the first connecting rod 72 and the second connecting rod 73, so that the first connecting rod 72 and the second connecting rod 73 rotate along the length of the electric bed around the connecting point of the u-shaped through-hole devices 151.

When the bed is rotated towards the direction of the bed tail and is rotated to be horizontal, the bed can be just lapped on the through hole devices 10 of the first transverse frame 11 and the second transverse frame 12 and can be fixed by screws or pins; then the middle bed plate 71 is arranged on the first connecting rod 72 and the second connecting rod 73; at least one round hole is respectively arranged on the first connecting rod 72 and the second connecting rod 73, and a through hole with the size corresponding to the round hole is arranged at the corresponding position of the middle bed plate 71 and is screwed in and reinforced by screws or pins.

When the bed is rotated towards the head direction of the bed, positioning parts 212 are further arranged on two sides of the middle part of the third transverse frame 811 and the fourth transverse frame 712, the positioning parts 212 are groove-shaped or L-shaped, and the openings of the positioning parts 212 are upward; when the first link 72 and the second link 73 are rotated to be horizontal to the third transverse frame 811 and the fourth transverse frame 812, the first link 72 and the second link 73 can be fixedly connected by being put into the slot-shaped opening.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof.

Claims (23)

1. A bed frame is characterized in that: comprises a frame and a supporting device; two sides of an enclosure frame formed by the frame are respectively provided with a supporting device which is parallel to each other; the support means may be used to extend the length of the frame; the frame comprises a first transverse frame, a second transverse frame, a first longitudinal frame and a second longitudinal frame; the second longitudinal frame is integrally formed by a middle part, a first extension part and a second extension part; the first transverse frame, the second transverse frame, the first longitudinal frame and the middle part enclose a polygonal frame; the first longitudinal frame and the second longitudinal frame are sequentially distributed from the head of the bed to the tail of the bed; the supporting device is movably connected with the first transverse frame and the second transverse frame.

2. A bed base according to claim 1, wherein: the supporting device can rotate by 360 degrees by taking the connecting point as an axis; when the supporting device is placed towards the bed tail to be at the same horizontal line with the transverse frame, the supporting device can be lapped on the first extending part and the second extending part, and the ac length of the supporting device is larger than the ab length from the connecting end to the second longitudinal frame.

3. A bed base according to claim 1, wherein: the supporting device can rotate by 360 degrees by taking the connecting point as an axis; the cross section of the supporting device is provided with a round hole, the first transverse frame and the second transverse frame are correspondingly provided with a through hole with the same size, when the supporting device is placed towards the direction of the bed tail and is positioned at the same horizontal line with the transverse frames, the circle center of the supporting device and the circle center of the transverse frames are positioned at the same point, and the round hole and the through hole can be inserted by screws or pins to fix the position of the supporting device.

4. A bed base according to claim 1, wherein: the first transverse frame and the second transverse frame are sleeved with a slot piece, and the supporting device can extend back and forth in the slot piece and can be used for prolonging the length of the frame.

5. A bed base according to claim 2 wherein said support means is removably connected to said cross frame.

6. A bed base according to claim 1, wherein: the tail ends of the first transverse frame and the second transverse frame are arranged to be of hollow structures, so that the supporting device can be inserted into the hollow structures and can be pulled in and out, and the length of the frame can be extended and contracted.

7. The bed frame according to claim 5, wherein the supporting means comprises a rod portion and a supporting portion, the rod portion is hinged to the horizontal frame at one end and fixedly connected to the supporting portion at the other end; the supporting part can be a rigid casting.

8. The bed base of claim 7 wherein said support portion is a roller device.

9. The bed frame as claimed in claim 3, wherein the supporting portion is a roller device, which not only can be used as a better support for the electric bed; when the frame is lifted and vertical to the ground, the rollers in the roller device are contacted with the ground, the side of the supporting part is fixed by screws or pins, and the bedstead can be pushed to move on the ground by manpower.

10. A tailstock bed, comprising the bed frame as claimed in any one of claims 1 to 9, and a leg support provided on the bed frame, the leg support being movably connected to the bed frame; a leg driving mechanism for driving the leg support to lift is connected in the bedstead; the leg support is of a hinged structure, and when the leg support is in a flat state, the length of the whole structure of the leg support is limited by the whole length of the bedstead; and a bed plate mechanism is connected to the leg support.

11. The tailstock bed as claimed in claim 10, wherein: one end of the leg support is hinged to the first longitudinal frame, and the other end of the leg support can freely lift.

12. The tailstock bed as claimed in claim 11, wherein: the bed plate mechanism is divided into a first bed plate and a second bed plate which are distributed side by side from left to right; the first bed board and the second bed board are independent bed boards and are detachably connected onto the leg support, and the first bed board and the second bed board can be matched with the leg support in a hinged or lifting state in size.

13. The tailstock bed as claimed in claim 12, wherein: one end of the second bed board towards the tail part exceeds or is flush with the limit position of the support device placed towards the tail part of the bed.

14. The tailstock bed according to claim 13, wherein: and a lifting device is arranged below the tail part of the second bed board, and when the leg support is lifted, the lifting device can lift the supporting device together with the leg support, so that the length ac of the supporting device does not exceed the tail limit position of the second bed board.

15. The utility model provides a modular lift electric bed which characterized in that: comprises a tail bed body, a head bed body and a middle bed body as claimed in any one of claims 10-14; the head bed body, the middle bed body and the tail bed body are sequentially connected from head to tail; the head bed body comprises a head frame and a back support arranged on the head frame, and the back support is hinged with the head frame; a back driving mechanism for driving the back support to lift is connected in the head frame; the back support is connected with a back plate; the middle bed body comprises a first connecting rod and a second connecting rod which are arranged in parallel along the length direction of the electric bed, and the upper part of the first connecting rod and the upper part of the second connecting rod are detachably connected with the middle bed board.

16. The modular lift electric bed of claim 15 wherein: the header frame is a polygon formed by a third longitudinal frame, a fourth longitudinal frame, a third transverse frame and a fourth transverse frame; through hole devices are arranged at the joint of the outer sides of the enclosing frames of the third transverse frame and the fourth transverse frame and the middle bed body; the butt joint of the outer sides of the enclosing frames of the first transverse frame and the second transverse frame and the middle bed body of the tail frame is provided with a through hole device.

17. The combined lifting electric bed according to claim 16, wherein: one end of the middle bed body is detachably connected with the head bed body through the first connecting rod and the second connecting rod; the other end of the middle bed body is detachably connected with the tail bed body through the first connecting rod and the second connecting rod.

18. The modular lift electric bed of claim 17 wherein: the spacing distance between the first connecting rod and the second connecting rod is greater than or equal to the length of the first longitudinal frame and the length of the fourth longitudinal frame; pins are arranged at both ends of the edge of the first connecting rod and both ends of the edge of the second connecting rod, and the pins are vertically arranged and face to the opposite side of the middle bed plate; and the middle bed body, the head bed body and the tail bed body are connected by buckling the pin into the through hole device.

19. The modular lift electric bed of claim 18 wherein: at least one first through hole is formed in the upper sides of the fourth longitudinal frame and the first longitudinal frame; second through holes corresponding to the middle bed plate in number and position are formed in the middle bed plate; and a shaft pin or a screw can be used for penetrating through the first through hole and the second through hole to be fixedly connected with the middle bed body, the head bed body and the tail bed body.

20. The modular lift electric bed of claim 19 wherein: the leg driving mechanism and the back driving mechanism each include: two sliding rods, a turnover rod and a driving part;

the two sliding rods are respectively arranged at two ends of the turnover rod and are in an H-like shape;

the middle part of the sliding rod protrudes towards the bed board to form an obtuse angle V shape, the head part of the sliding rod is provided with a rotatable first roller, the middle part of the sliding rod is provided with a rotatable second roller, and the tail part of the sliding rod is hinged with the frame;

the overturning rod is positioned between the middle part of the sliding rod and the tail part of the sliding rod;

two ends of the driving part are respectively hinged with the turnover rod and the frame, and the horizontal direction of the thrust of the driving part is the same as the horizontal direction from the first roller to the second roller;

the horizontal direction from the first roller to the second roller points to the rotating axis of the turnover device where the first roller and the second roller are located to drive the bed plate;

the rotation axes of the first roller, the second roller, the sliding rod, the back plate, the middle bed plate and the bed plate mechanism are parallel to each other.

21. The combined lifting electric bed as recited in claim 20, wherein the turning bar is fixedly provided with a U-shaped ear flap, and the driving member is hinged to the turning bar via the U-shaped ear flap.

22. The modular lift electric bed of claim 21 wherein: a reinforced plate is arranged at the included angle between the sliding rod and the turnover rod in the back driving mechanism; the reinforcing plate is arc-shaped.

23. The modular lift electric bed of claim 15 wherein: the bed frame and the bottom of the head frame are detachably connected with bed legs.

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