Adjustable slide drive electric bed for full user reclining

Abstract

An adjustable sliding drive electric bed for a user to lie completely flat comprises a base and a backrest moving member, a translation frame, a transition frame, a lifting frame and a drive mechanism for driving the translation frame to move forward and backward on the base, which are sequentially and alternately connected and installed on the base; wherein the translation frame is provided with upper and lower limit wheels without guide rails, which drive the backrest and each frame to move stably upward and downward on the base under the drive of a motor to realize the lying and lifting functions of the mechanism. Moreover, each frame is carefully designed to change the angle during movement, so that the person lying thereon will not feel uncomfortable or slip down due to the change, but will be more comfortable and the backrest support stress angle will be more reasonable, and the backrest can be lifted more easily and efficiently. In addition, only one motor is used for the entire electric bed to realize the standard sliding movement of each frame and the backrest drive of the electric bed, which has a reasonable and simple structure, can simplify the packaging and greatly reduce the production and sales costs.

Description

TECHNICAL FIELD

[0001] The present application relates to an electric bed with a reclining chair function, and in particular to an electric bed that can be adjusted to smoothly lie down completely by a sliding drive. BACKGROUND

[0002] At present, the sliding electric beds sold in the market generally have the following problems:

[0003] Firstly, many adjustable electric beds use a complex slide rail structure and a large number of parts, and the production process is complex, and the stability of the slide rail after assembly is poor.

[0004] Secondly, the adjustable electric bed as a reclining chair only lifts and lowers the backrest when sliding, which makes the human body feel very uncomfortable, and it is easy to slide down with the product, making the user feel suddenly unsupported.

[0005] Furthermore, some adjustable electric beds also have problems in mechanism or structure design, which cannot solve the problem of lying down completely with the backrest after unfolding, and cannot solve the problem of lifting the backrest with a large motor force after completely unfolding or lying down.

[0006] In addition, in the prior art, there is an adjustable electric bed that uses a double-motor drive mode, and the front and rear sliding frames and the backrest are driven by separate motors. This electric bed needs a length of 200 centimeters in the lying position, which will inevitably increase the number of cabinets per unit area. Obviously, it is not ideal in structure and economy. SUMMARY

[0007] The present application aims to overcome the defects of the prior art, in particular the complex slide rail structure and the large number of parts of the existing adjustable electric bed, the poor stability of the slide rail after assembly, and the separate adjustment of the reclining chair and the backrest of the electric bed, which makes the user feel extremely uncomfortable. The present application provides an adjustable sliding drive electric bed for completely lying down

[0008] In order to solve the above technical problems, the present application is implemented as follows: an adjustable sliding drive electric bed for completely lying down, comprising a seat frame-shaped base, a backrest moving member, a translation frame, a transition frame, a lifting frame installed in the length direction of the base from right to left, and a drive mechanism installed on the base and driving the translation frame to move forward and backward on the base; wherein,

[0009] The backrest moving member comprises a backrest, a pair of backrest supporting rods, a pair of first supporting seats, a pair of second supporting seats, and a pair of connecting plates. The backrest is U-shaped, and each of the upper portions of the left and right arms of the backrest has a supporting hole. The first supporting seats are arranged on the opposite sides of the backrest and the base respectively. The upper portion of the backrest is connected with the supporting hole of the backrest and the seat hole of the first supporting seat through the backrest supporting rods. The second supporting seats are arranged on the rear wall of the translation frame in a relatively spaced manner. The one end of each of the connecting plates is connected with the seat hole of the second supporting seat through a hinge, and the other end is fixedly connected with the lower end portion between the two arms of the backrest.

[0010] The translation frame comprises a displacement frame and two sets of limiting wheel mechanisms. The displacement frame is composed of a translation portion for being placed on the base and two support plate portions each connected vertically on the two sides of the translation portion. Each set of the limiting wheel mechanisms comprises two pairs of limiting wheels installed on the two support plate portions and arranged on the upper and lower side surfaces of the seat frame of the base in a sliding manner through supporting members.

[0011] The transition frame is a quadrilateral frame horizontally placed on the upper surface of the seat frame of the base on the two sides of the seat frame. The adjacent side of the transition frame to the displacement frame is connected through a hinge.

[0012] The lifting frame comprises a quadrilateral frame and two pairs of lifting supporting rods each connected in a spaced manner between the quadrilateral frame and the seat frame of the base through a movable connecting mechanism. The adjacent side of the quadrilateral frame of the lifting frame to the transition frame is connected through a hinge.

[0013] The adjustable sliding drive electric bed as described above, wherein the drive mechanism comprises a motor with a speed adjusting mechanism, a sliding block and a sliding rod. The motor is installed in the seat frame of the base below the backrest moving portion through a bottom plate. The sliding block is installed in the middle of the displacement frame of the translation frame. The one end of the sliding rod is connected with the transmission shaft of the motor through a shaft sleeve, and the rod portion of the sliding rod is connected with the sliding block in a threaded manner.

[0014] The adjustable sliding drive electric bed as described above, wherein the backrest moving member further comprises a pair of limiting mechanisms each comprising a limiting supporting rod fixed at the lower portion of the backrest supporting rod and a limiting portion or a limiting block selectively located or installed on the side of the base opposite to the rotating direction of the limiting supporting rod. The other end or the free end of the limiting supporting rod can be in contact with the limiting portion or the limiting block to prevent the backrest from continuing to rotate backward, so that the backrest can be kept stable when it is located at the set maximum height.

[0015] The adjustable sliding drive electric bed as described above, wherein the supporting member of the limiting wheel mechanism comprises a shaft and two pairs of lower limiting wheel adjusting members. The limiting wheels are installed on the supports of the support plate portions in an upper and lower opposite manner through the shaft. The lower limiting wheel adjusting members are arranged on the support plate portions below the lower side of the shaft of each lower limiting wheel, and the front portions of the lower limiting wheel adjusting members are in contact with the shaft.

[0016] The adjustable sliding drive electric bed as claimed in claim 1, wherein the transition frame and the lifting frame are each provided with transition legs and lifting legs under the quadrangular frames thereof, so that the upper surfaces of the transition frame and the lifting frame are parallel to the upper surface of the translation frame when the transition frame and the lifting frame are lowered to the lowest position.

[0017] The adjustable sliding drive electric bed as claimed in claim 1, wherein the backrest is adjustable at an angle of 2 to 75 degrees relative to the base under the action of the driving mechanism.

[0018] The adjustable sliding drive electric bed as claimed in claim 1, wherein the quadrangular frame of the lifting frame and the movable connecting mechanism of the two pairs of lifting support rods comprise a pair of connecting holes respectively arranged on the opposite sides of the quadrangular frame and the rear part of the seat frame, and the lifting support rods are each provided with a shaft hole at the two ends thereof and a pin shaft connecting the two ends together, that is, the two ends of the lifting support rods are each movably connected with the connecting holes of the quadrangular frame and the base through the pin shaft.

[0019] The adjustable sliding drive electric bed as claimed in claim 1, further comprising a pair of inserts each mounted on the end of the left and right arms of the backrest for connecting an external head frame.

[0020] The adjustable sliding drive electric bed as claimed in claim 1, wherein the inserts are composed of multiple sections of sleeves to be telescopic.

[0021] The present application has the following advantages:

[0022] 1. The translation frame, the transition frame and the lifting frame are sequentially mounted on one side of the base and connected with each other, and the translation frame is connected with the backrest arranged on the other side of the base, so that the translation frame is limited to move forward and backward on the base 1 under the action of the driving mechanism. The translation frame without guide rail has the functions of lying and lifting. The distance between the limiting wheels and the seat frame of the base can be adjusted, and the gap therebetween can be eliminated. A plurality of sets of limiting wheels are used to limit the movement (e.g. Figure 8 , 9 ), so as to ensure the smooth operation of the structure, increase the strength and ensure the convenience of installation.

[0023] 2. When the electric bed is adjusted, the lifting frame is used to fit the position of the legs of the user. The angles of different positions are changed during the movement of the frames, so that the user lying on the bed will not feel uncomfortable or fall off due to the change of the mechanism. At the same time, the transition frame can be adjusted at an angle of 0 to 45 degrees between the transition frame and the translation frame, so as to make the structure more fit the human body structure and the sitting feeling more comfortable.

[0024] 3. The backrest features a reclining function: when fully extended, the backrest has a slight angle and is supported by a soft padding on the base frame for easy relative movement. This makes the backrest's support angle more reasonable and allows it to be lifted more easily and efficiently.

[0025] 4. The entire electric bed uses only one motor: A single motor can realize multiple movement states of the bed's various frames and backrest. The up-and-down and forward-and-backward movement of the lifting frame, and the arbitrary adjustment of the backrest angle, greatly reduce costs.

[0026] 5. The entire adjustment function of the electric bed is only about 1.5 meters long: it not only meets the size requirements of electric sofa beds with upholstery, but also meets the needs of independent electric beds.

[0027] 6. Simplified Packaging: Because this product can be laid completely flat, it can be packaged in a straight cardboard box, whether or not a backrest is added, after being made into a sofa. This saves packaging costs and increases the number of items that can be packed per unit area (e.g., ...). Figure 7 ) . Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0029] Figure 1 This is a three-dimensional structural diagram of the electric bed of the present invention.

[0030] Figure 2 This is a front view schematic diagram of the initial state of the electric bed of the present invention.

[0031] Figure 3 For electric beds from Figure 2 A frontal view of the initial state transitioning into the state of motion.

[0032] Figure 4 For electric beds from Figure 3 A frontal view of the state where the lifting frame is pushed to its highest point during movement.

[0033] Figure 5 For electric beds from Figure 4 A front view diagram showing the lifting frame at its highest point, moving downwards and forwards relative to the base along with the backrest.

[0034] Figure 6 For electric beds from Figure 5 A frontal view diagram illustrating the continued motion until the final state is reached.

[0035] Figure 7 In order to be in Figure 6 A diagram showing a finished sofa placed on an electric bed in its final state.

[0036] Figure 8 for Figure 7The schematic view of the translation frame after the removal of the support part of the frame to further show the multiple sets of limiting wheel structures.

[0037] Figure 9 To Figure 2 The lateral schematic view to show the structure of the limiting mechanism. DETAILED DESCRIPTION

[0038] Please refer to Figures 1 to 9 , the adjustable sliding drive electric bed for the user to lie completely, including seat frame type base 1, and from right to left in turn installed on the length direction of the backrest moving component 2, translation frame 3, transition frame 4, lifting frame 5 and drive mechanism 6 installed on the base 1 and drive the translation frame 3 on the base 1 forward and backward movement, wherein,

[0039] The backrest moving component 2 includes a backrest 21, a pair of backrest support rods 22, a pair of first bearing seats 23, a pair of second bearing seats 24, a pair of connecting plates 25, here, the backrest 21 is U-shaped, the upper part of the left and right arms has a branch hole 211 respectively, the first bearing seat 23 is arranged on the opposite sides of the base 1 respectively at the back side of the backrest 21, the upper part of the backrest 21 is connected with the branch hole 211 of the backrest and the seat hole of the first bearing seat 23 through the backrest support rod 22, the second bearing seat 24 is installed on the rear side wall of the translation frame 3 in relative spacing, that is, on the side of the translation frame 3 adjacent to the backrest 21, one end of the connecting plate 25 is connected with the seat hole of the second bearing seat 24 respectively, and the other end is fixedly connected to the lower end part between the two arms of the backrest 21;

[0040] In a preferred embodiment, in the adjustable sliding drive electric bed of the present application, the backrest moving component 2 further includes a pair of limiting mechanisms 26, each of which includes a limiting support rod 261 fixed at the lower side of the backrest support rod 22 and a limiting part or limiting block 262 selectively located or installed on the side of the base 1 opposite to the rotating direction of the limiting support rod, the other end or free end of the limiting support rod 261 can be attached to the limiting part or limiting block 262 to prevent the backrest from continuing to rotate backward, so that the backrest remains stable when it is at the set maximum height, preventing the backrest from shaking.

[0041] The translation frame 3 includes a displacement frame 31 and two sets of limiting wheel mechanisms 32, wherein the displacement frame 31 is composed of a translation part 311 for resting on the base 1 and two support plate parts 312 respectively connected vertically on both sides of the translation part 311, the support plate part 312 can adopt a profile such as a channel steel, each set of limiting wheel mechanism 32 includes two pairs of limiting wheels 322 respectively installed on the support plate part 321 and in sliding contact with the upper and lower side surfaces of the seat frame of the base 1 through the supporting component; so that the translation frame 3 can move forward and backward on the base 1 through the limiting wheel mechanism 32.

[0042] Further, the supporting member of the limiting wheel mechanism comprises a shaft 3211 and two pairs of lower limiting wheel adjusting members 3212, the upper and lower limiting wheels 322 are respectively installed on the supporting plate 32 through the shaft 3211 in the upper and lower positions, the lower limiting wheel adjusting member 3212 is an adjusting block containing a stopper fastener relative to the supporting plate 321, which is respectively arranged on the lower side of the shaft of the lower limiting wheel on the supporting plate, and the front part is in abutment with the shaft seat or the shaft 3211.

[0043] The transition frame 4 is a quadrilateral frame horizontally placed on the upper surface of the seat frame on both sides of the base 1, and the side adjacent to the displacement frame 31 of the transition frame 4 is connected through the hinge 8;

[0044] The lifting frame 5 comprises a quadrilateral frame 51 and two pairs of lifting support rods 52 respectively installed in the connecting mode of the movable connecting mechanism between the quadrilateral frame 51 and the opposite sides of the base seat frame, and the side adjacent to the transition frame 4 of the quadrilateral frame 51 is connected through the hinge 8.

[0045] The movable connecting mechanism between the quadrilateral frame 51 and the seat frame on both sides of the base 1 comprises a pair of connecting holes respectively arranged in the rear part of the quadrilateral frame 51 and the seat frame on both sides, and the lifting support rod 52 has a shaft hole at both ends, and the shaft hole is connected through the pin 53, that is, the lifting support rod 52 is respectively movably connected with the connecting holes of the quadrilateral frame 51 and the base 1 through the pin 53 at both ends.

[0046] In a preferred embodiment, the transition leg 44 and the lifting leg 54 are respectively arranged on the lower surface of the transition frame 4 and the quadrilateral frame 51 of the lifting frame, so that when the transition frame 4 and the lifting frame 5 are lowered to the lowest position, the upper surfaces of the transition frame 4 and the lifting frame 5 are parallel to the upper surface of the transition frame 3.

[0047] The driving mechanism 6 comprises a motor 61 with speed adjusting mechanism, a sliding block 62 and a sliding rod 63. The motor 61 is installed in the seat frame of the base 1 under the backrest moving part 2 through the bottom plate, the sliding block 62 is installed in the middle of the displacement frame 31 of the translation frame 3, and the sliding rod 63 is connected with the transmission shaft of the motor through the shaft sleeve at one end and is connected with the sliding block 62 in the form of screw thread at the rod part. In this way, the sliding rod 63 drives the sliding block 62 to move forward and backward after the motor 61 is started, and correspondingly, the translation frame 3 moves on the base 1, which can be divided into two stages. In the first stage, the transition frame 4 and the lifting frame 5 are pushed from the horizontal state in contact with the base 1 to the raised state away from the base 1, and at the same time, the backrest 21 is pulled from the maximum height to the downward inclination, and in the second stage, the transition frame 4 and the lifting frame 5 are further pushed, and the left side of the lifting frame 5 is pulled to pass the base 1, and then the transition frame 4 and the lifting frame 5 are changed from the raised state away from the base 1 to the state of continuously descending and approaching the base 1, and at the same time, the height of the backrest 21 is continuously reduced until the transition frame 4, the lifting frame 5 and the backrest 21 are lowered to the horizontal state in contact with the base 1.

[0048] In the present application, the maximum expansion angle of the backrest 21 is 2 degrees to 75 degrees, but is not limited to this angle range, and can be adjusted according to the needs of the user.

[0049] In another preferred embodiment, the adjustable sliding driving electric bed of the present application further comprises a pair of inserts 7, each of which is installed on the end of the left and right arms of the backrest 21 for connecting the external head frame. Preferably, the insert 7 is composed of multiple sleeve tubes to be telescopic and convenient for length adjustment.

[0050] The overall operation process of the present application is as follows: in the initial state (as shown in Figure 2 ), the transition frame 4 and the lifting frame 5 are horizontally placed on the upper surface of the seat frame of the base 1, and the backrest 21 is in the maximum raised position relative to the base. In the motion state (as shown in Figure 3 ), the transition frame 4 and the lifting frame 5 are continuously moved backward on the base 1 with the movement of the translation frame 3, and at the same time, the transition frame 4 is pushed to move backward and the backrest is inclined forward and rotated at one end, and the lifting support rod 52 is rotated in the range of the upper and lower pins to lift the lifting frame 5 upward by a certain distance from the base, and the translation frame 3 continues to move to push the lifting frame to be further lifted until the lifting support rod 52 is perpendicular to the lifting frame 5, which is the highest point of the lifting frame 5, and at the same time, the backrest is rotated to an angle close to one third of the horizontal state (as shown in Figure 4 ), and from the state that the lifting support rod 52 is perpendicular to the lifting frame 5 to the final state (as shown in Figure 6 ), the translation frame 3 is further moved backward (as shown in Figure 5) to push the lifting frame 5 out of the base and with part of it resting on the base, while the backrest is turned to a horizontal position close to the base. For the return from the final state to the initial state, the procedure is completed with the opposite movement of the translation frame 3.

Claims

1. An adjustable, slide drive electric bed for a user to lie completely flat, characterized in that: It comprises a seat frame-shaped base, a backrest moving component, a translation frame, a transition frame and a lifting frame installed on the base in sequence from right to left; The backrest moving component comprises a backrest, a pair of backrest support rods, a pair of first supporting seats, a pair of second supporting seats and a pair of connecting plates; the backrest is U-shaped, and the upper part of each of the left and right arms of the backrest has a supporting hole; the first supporting seats are respectively arranged on the back of the backrest and the opposite sides of the base, and the upper part of the backrest is connected with the supporting holes of the backrest and the seat holes of the first supporting seats through the backrest support rods; the second supporting seats are arranged on the back wall of the translation frame in opposite intervals, and one end of each of the connecting plates is connected with the seat holes of the second supporting seats, and the other end is fixedly connected with the lower end part between the two arms of the backrest; The translation frame adopts a guide rail-free design and comprises a displacement frame and two sets of limiting wheel mechanisms; the displacement frame is composed of a translation part for being placed on the base and two support plate parts each connected perpendicularly to the two sides of the translation part; each set of the limiting wheel mechanisms comprises two pairs of limiting wheels installed on the two support plate parts and in sliding mode on the upper and lower side surfaces of the base through supporting members, so that the translation frame moves stably forward and backward on the base under the driving of the driving mechanism, and the lying and lifting functions of the mechanism are realized; the limiting wheels are in sliding mode and abut against the upper and lower surfaces of the base, forming a guide rail-free sliding structure; The transition frame is a quadrilateral frame horizontally placed on the upper surfaces of the two sides of the base, and is connected with the adjacent side of the displacement frame of the translation frame through a hinge, so that the transition frame is driven to move up and down in linkage with the translation frame when the translation frame moves forward and backward; The lifting frame comprises a quadrilateral frame and two pairs of lifting support rods respectively installed in a spaced manner between the frame and the base through movable connecting mechanisms; The transition frame and the lifting frame are each provided with a transition support leg and a lifting support leg on the lower surface, so that the upper surfaces of the transition frame and the lifting frame are flush with the translation frame when the transition frame and the lifting frame are lowered to the lowest position, and complete lying is realized; The linkage design of the guide rail-free sliding structure and the transition frame makes the electric bed keep structural stability in the completely lying state and reduces the moving resistance; The driving mechanism installed on the base and driving the translation frame to move forward and backward on the base comprises a motor with a speed adjusting mechanism, a sliding block and a sliding rod; the motor is installed in the seat frame of the base below the backrest moving component through a bottom plate; the sliding block is installed in the middle of the displacement frame of the translation frame; one end of the sliding rod is connected with the transmission shaft of the motor through a shaft sleeve, and the rod part of the sliding rod is connected with the sliding block in a threaded mode.

2. The adjustable slide drive power bed of claim 1 wherein, The driving mechanism comprises a motor with a speed adjusting mechanism, a sliding block and a sliding rod; the motor is installed in the seat frame of the base below the backrest moving component through a bottom plate; the sliding block is installed in the middle of the displacement frame of the translation frame; one end of the sliding rod is connected with the transmission shaft of the motor through a shaft sleeve, and the rod part of the sliding rod is connected with the sliding block in a threaded mode.

3. The adjustable slide drive power bed of claim 1 wherein, The backrest moving part further comprises a pair of limiting mechanisms, each of which comprises a limiting support rod fixed at one end under the backrest support rod and a limiting part or limiting block selectively located or installed at one side of the base opposite to the rotating direction of the limiting support rod, the other end or free end of the limiting support rod can be attached to the limiting part or limiting block to prevent the backrest from continuing to rotate backward, so that the backrest can be kept stable when it is located at the set maximum height.

4. The adjustable slide drive power bed of claim 1 wherein, The supporting part of the limiting wheel mechanism comprises a shaft and two pairs of lower limiting wheel adjusting members, the limiting wheels are respectively installed on the supporting part by the shaft, the lower limiting wheel adjusting members are arranged on the supporting part below the shaft of each lower limiting wheel, and the front part of the lower limiting wheel adjusting members is in abutment with the shaft.

5. The adjustable slide drive power bed of claim 1 wherein, The adjusting angle of the backrest to the base under the action of the driving mechanism is 2 degrees to 75 degrees.

6. The adjustable slide drive power bed of claim 1 wherein, The movable connecting mechanism of the quadrangular frame of the lifting frame and the two pairs of lifting support rods comprises a pair of connecting holes respectively arranged at two opposite sides of the rear part of the quadrangular frame and the seat frame, the two ends of the lifting support rods are respectively provided with shaft holes, and a pin shaft is arranged to connect the two ends together, that is, the two ends of the lifting support rods are movably connected to the connecting holes of the quadrangular frame and the base through the pin shaft.

7. The adjustable slide drive power bed of claim 1 wherein, Further comprising a pair of inserts, each of which is installed at the end of the left and right arms of the backrest, for connecting the external head frame.

8. The adjustable, sliding drive power bed of claim 7, wherein, The inserts are composed of multiple sections of sleeves to be telescopic.

Images