Bed frame leg moving device

Abstract

The utility model relates to a bed frame leg moving device. Comprising a lifting frame fixing piece, a bottom frame and a lifting structure. The lifting structure comprises a limiting piece, two bottom frame side plates and two lifting structural parts, the two bottom frame side plates are fixed to the bottom ends of the middles of the two transverse rods of the rectangular structural frame respectively, and the two lifting structural parts are symmetrically arranged on the two sides of the rectangular structural frame in the length direction. The device has the advantages of being novel in structure, simple in design and wide in application range, and has high market competitiveness. The lifting connecting frame is arranged on the inner side of the lifting supporting frame, the lifting connecting frame is rotatably connected with the lifting supporting frame, the top of the lifting connecting frame is rotatably connected with the lifting frame fixing piece, and the top of the lifting supporting frame is arranged in the two segmented sliding grooves of the bearing sliding groove in a sliding mode through a bearing assembly. Therefore, the structure is high in supporting performance and stable in function.

Description

TECHNICAL FIELD

[0001] The utility model relates to bed frame technical field, especially a bed frame leg activity device. BACKGROUND

[0002] In order to facilitate user to get on and off the bed, it is necessary to install lifting structure at the bottom of the bed plate.

[0003] The existing patent CN201220025715.9 provides a self-balancing power-assisted lifting device, comprising: a base frame, a swing arm support group, a swing arm group, a bed frame support group, a counterweight group, an electromagnetic power group, an angle detector and a carrier, the swing arm support group comprises two groups arranged symmetrically, the swing arm group comprises two groups arranged symmetrically, and the bed frame support group comprises two groups arranged symmetrically. When the load on the carrier is added or reduced, the balance of the swing arm group is broken, and this change is sensed by the angle detector, and then the counterweight group is started to adjust its center of gravity until the angle detector senses that the swing arm group reenters the balanced state, at which time only a small power is needed to drive the carrier, so the rated power of the electromagnetic power group can be controlled within a very small range.

[0004] However, the above structure is relatively complex and does not meet the needs of modern people for simple life. CONTENT OF THE UTILITY MODEL

[0005] The utility model solves the technical problem of providing a bed frame leg activity device.

[0006] To solve the above technical problem, the technical scheme of the utility model is as follows: a bed frame leg activity device, which is characterized by comprising a lifting frame fixing plate, a base frame and a lifting structure.

[0007] The base frame comprises a rectangular structure frame composed of a plurality of horizontal rods and vertical rods, and the rectangular structure frame is arranged transversely.

[0008] The lifting frame fixing plate has four, respectively welded and fixed at both ends of the length of the two sides of the rectangular structure frame.

[0009] The lifting structure comprises a limiting plate, two base frame side plates respectively fixed at the bottom of the middle of the two horizontal rods of the rectangular structure frame, and two lifting structure members symmetrically arranged on the length of the two sides of the rectangular structure frame, the inner side of the two base frame side plates has a bearing sliding groove consistent with the extension square of the rectangular structure, and a limiting plate is vertically fixed in the middle of each bearing sliding groove, so that each bearing sliding groove has two segmented sliding grooves arranged without communication.

[0010] The lifting structure member comprises an inclined lifting connecting frame and a lifting support frame, and the middle of the lifting support frame is rotationally connected with the bottom of the lifting connecting frame.

[0011] The lifting support frames of the two lifting structures are in a splayed symmetrical distribution, and the top of the lifting support frame is slidably arranged in the two sectional sliding grooves of the bearing sliding groove through a bearing assembly, so that the lifting support frame can move back and forth in the horizontal direction in the sectional sliding groove; the lifting connecting frames of the two lifting structures are in an inverted splayed symmetrical distribution, and the top of the lifting connecting frame extends to near the lifting frame fixing piece and is rotatably connected with the lifting frame fixing piece, so that the lifting connecting frame can swing up and down, thereby driving the bottom frame and the bed frame to lift up and down, and allowing the bottom frame to reach any height and angle required by the user.

[0012] Further, the lifting support frame comprises two lifting support rods symmetrically arranged inside the two sides of the width of the rectangular structure frame, and a support cross bar is fixed between the two lifting support rods; a connecting seat is fixed to one side of the middle of the lifting support rod away from the adjacent lifting frame fixing piece, and the connecting seat is provided with a first connecting hole; the lifting connecting frame comprises two lifting connecting rods symmetrically arranged inside the lifting support frame, and the bottom of each of the two lifting connecting rods is provided with a second connecting hole; the adjacent lifting support rod and the lifting connecting rod are hingedly connected through a hinge shaft and the first connecting hole and the second connecting hole, so as to realize the rotatable connection between the lifting support frame and the lifting connecting frame.

[0013] Further, a connecting cross bar is further fixed between the two lifting connecting rods of the lifting connecting frame near the bottom position, and a connecting piece is fixed to the middle of the connecting cross bar; two driving motors are arranged between the two lifting connecting frames, and the output end of each driving motor is connected with a connecting piece, so that an included angle is formed between the lifting connecting frame and the lifting support frame, which has supporting property and no safety hazard, and can keep the close contact of the components and smooth running track.

[0014] Further, the bearing assembly comprises a bearing, a stepped bolt and a bearing fixing pipe; the top of the lifting support frame is provided with a through hole, the bearing fixing pipe is installed in the through hole, and one side of the bearing fixing pipe extends towards the side of the lifting support frame close to the adjacent sectional sliding groove; the bearing is installed on the extended side of the bearing fixing pipe and in the sectional sliding groove; and the stepped bolt is threadedly connected with the extended side of the bearing fixing pipe, so that the bearing is limited on the bearing fixing pipe between the lifting support frame and the stepped bolt, and the stable sliding connection between the lifting support frame and the sectional sliding groove is realized.

[0015] The utility model has the advantages that:

[0016] The patent is mainly applied to nursing beds and household beds, and the up-down lifting of the whole bed surface can be realized through the lifting structure, which has the advantages of novel structure, simple design and wide application range, and has strong market competitiveness.

[0017] The lifting structure comprises a lifting connecting frame and a lifting support frame, the lifting connecting frame is arranged inside the lifting support frame and is rotatably connected with the lifting support frame, the top of the lifting connecting frame is rotatably connected with the lifting frame fixing piece, and the top of the lifting support frame is slidably arranged in the two sectional sliding grooves of the bearing sliding groove through the bearing assembly, so that the structure has strong structural support and stable function.

[0018] The bearing assembly limits the bearing on the bearing fixing pipe between the lifting support frame and the step bolt, and realizes the stable sliding connection between the lifting support frame and the sectional sliding groove.

[0019] The two lifting connecting rods of the lifting connecting frame are further fixed with a connecting cross rod at the position close to the bottom, the connecting cross rod is fixed with a connecting piece at the middle portion, two driving motors are arranged between the two lifting connecting frames, the output end of each driving motor is connected with a connecting piece, so that an included angle is formed between the lifting connecting frame and the lifting support frame, the structure has support and has no safety hazard, and can keep the parts in close contact and the running track smooth. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a state diagram when the lifting device is lifted to the highest position.

[0021] Fig. 2 It is a state diagram when the lifting device is lowered to the lowest position. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the lifting device to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects of the lifting device according to the present application are described in detail below in combination with the drawings and preferred embodiments.

[0023] As shown in the drawings, the lifting device comprises a PLC controller, a lifting frame fixing piece 1, a base frame 2 and a lifting structure 3. Figs. 1-2 The base frame 2 is made of carbon steel, the lifting support frame 343 is made of ordinary carbon steel, and the lifting connecting frame 342 is made of stainless steel.

[0024] The base frame 2 comprises a rectangular structure frame composed of a plurality of horizontal rods and vertical rods, and the rectangular structure frame is arranged transversely, and the base frame 2 is provided with a bed plate.

[0025] The lifting frame fixing piece 1 has four, which are respectively welded and fixed at the two ends inside the length of the rectangular structure frame, and each lifting frame fixing piece 1 comprises two adjacent fixing pieces, and a gap for accommodating the extension of the lifting connecting rod is left between the two fixing pieces.

[0026] The lifting structure 3 comprises a limiting sheet 31, two bottom frame side plates 32 fixed at the bottom ends of the middle portions of the two horizontal rods of the rectangular structure frame respectively, and two lifting structural members 34 symmetrically arranged at the two length sides of the rectangular structure frame, the inner sides of the two bottom frame side plates 32 are provided with bearing sliding grooves consistent with the extension square of the rectangular structure frame of the bottom frame 2, and a limiting sheet 31 is vertically fixed at the middle portion of each bearing sliding groove, so that each bearing sliding groove has two segmented sliding grooves 33 arranged in a manner of not being communicated with each other.

[0027] The lifting structural member 34 comprises a rotating shaft 341, a lifting connecting frame 342 arranged in an inclined manner, and a lifting support frame 343, and the middle portion of the lifting support frame 343 is rotationally connected with the bottom of the lifting connecting frame 342.

[0028] The lifting support frames 343 of the two lifting structural members 34 are symmetrically distributed in a shape of a pair of open shoes, and the top portions of the lifting support frames 343 are slidably arranged in the two segmented sliding grooves 33 of the bearing sliding grooves through the bearing assembly 4, and the top portion of each lifting support frame 343 is arranged in a different segmented sliding groove 33 through a bearing assembly 4, so that the top portion of the lifting support frame 343 can move back and forth in the horizontal direction in the segmented sliding groove 33, thereby realizing the lifting of the bottom frame 2.

[0029] The lifting support frame 343 comprises two lifting support rods symmetrically arranged inside the two width sides of the rectangular structure frame, an arc-shaped slot is formed at the bottom of each lifting support rod, the rotating shaft 341 is longitudinally arranged and fixed at the arc-shaped slots of the two lifting support rods, a support horizontal rod is fixed between the two lifting support rods, a connecting seat 344 is fixed at the side of the middle portion of the lifting support rod away from the adjacent lifting frame fixing member 1, and the connecting seat 344 is provided with a first connecting hole.

[0030] The lifting connecting frames 342 of the two lifting structural members 34 are symmetrically distributed in a shape of an inverted pair of open shoes, and the top portions of the lifting connecting frames 342 extend to the positions close to the lifting frame fixing member 1 and are hingedly connected with the lifting frame fixing member 1, so that the lifting connecting frame 342 can swing up and down, thereby driving the bottom frame 2 and the bed frame to lift up and down, and making the bottom frame 2 reach any height and angle required by the user.

[0031] The lifting connecting frame 342 comprises two lifting connecting rods symmetrically arranged inside the lifting support frame 343, the bottom of each lifting connecting rod is provided with a second connecting hole, the adjacent lifting support rod and the lifting connecting rod are hingedly connected through a hinge shaft 345 and the first connecting hole and the second connecting hole, and the rotationally connecting between the lifting support frame 343 and the lifting connecting frame 342 is realized.

[0032] The two lifting connecting rods of the lifting connecting frame 342 are also fixed with a connecting cross rod 346 at a position close to the bottom, and a connecting plate 347 is fixed in the middle of the connecting cross rod 346. Two drive motors are arranged between the two lifting connecting frames 342, and the output ends of the two drive motors are connected with a connecting plate 347. The drive motor drives the lifting connecting frame 342 to lift, so that the lifting support moves smoothly in the respective segment sliding groove 33, and a clamping angle is formed between the lifting connecting frame 342 and the lifting support frame 343, which has supporting property and no safety hazard, and can keep the parts in close contact and the running track smooth.

[0033] The bearing assembly 4 includes a bearing, a stepped bolt, and a bearing fixing pipe. The top of the lifting support frame 343 is provided with a through hole, and the through hole is provided with the bearing fixing pipe. One side of the bearing fixing pipe extends towards the side of the lifting support frame 343 close to the adjacent segment sliding groove 33. The bearing is installed on the extended side of the bearing fixing pipe and is located in the segment sliding groove 33. The stepped bolt is threadedly connected with the extended side of the bearing fixing pipe, so that the bearing is limited on the bearing fixing pipe between the lifting support frame 343 and the stepped bolt, and the stable sliding connection between the lifting support frame 343 and the segment sliding groove 33 is realized.

[0034] The patent is mainly applied to nursing beds and home beds. The whole bed surface can be lifted up and down through the lifting structure 3. The patent has the advantages of novel structure, simple design, wide application range, and strong market competitiveness.

[0035] The working principle of the patent is as follows:

[0036] The PLC controller sends instructions to drive the motor to drive the lifting connecting frame 342 and the support frame to move in the control process, so that the bearing assembly 4 connected with the lifting support frame 343 moves linearly along the segment sliding rail. The PLC controller can also make the whole bed move up and down. During the movement, the bearing plays a supporting and friction reducing role, ensuring the stability and smoothness of the movement. The lifting connecting frame 342 and the lifting support frame 343 form a clamping angle, which has supporting property and no safety hazard, and can keep the parts in close contact and the running track smooth.

[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A bed frame leg movable device, characterized in that: Includes the lifting frame fixing plate, base frame, and lifting structure; The base frame includes a rectangular structural frame composed of multiple horizontal and vertical bars, and the rectangular structural frame is arranged horizontally. The lifting frame has four fixing plates, which are welded and fixed at both ends of the length of the rectangular structural frame. The lifting structure includes a limiting plate, two base frame side plates fixed at the bottom of the middle of the two crossbars of the rectangular structural frame, and two lifting structural components symmetrically arranged on both sides of the length of the rectangular structural frame. The inner side of the two base frame side plates has bearing grooves that are consistent with the rectangular extended square, and a limiting plate is vertically fixed in the middle of each bearing groove, so that each bearing groove has two segmented grooves that are not connected to each other. The lifting structure includes an inclined lifting connecting frame and a lifting support frame, wherein the middle part of the lifting support frame is rotatably connected to the bottom of the lifting connecting frame. The lifting support frames of the two lifting structural components are symmetrically distributed in a figure-eight shape, and the top of the lifting support frame is slidably disposed in the two segmented slide grooves of the bearing slide groove through the bearing assembly. The lifting connecting frames of the two lifting structural components are symmetrically distributed in an inverted figure-eight shape, and the top of the lifting connecting frame extends to near the lifting frame fixing plate and is rotatably connected to the lifting frame fixing plate.

2. The bed frame leg movable device according to claim 1, characterized in that: The lifting support frame includes two lifting support rods symmetrically arranged inside the width of the rectangular structural frame. A support crossbar is fixed between the two lifting support rods. A connecting seat is fixed on the side of the middle of the lifting support rod away from the adjacent lifting frame fixing plate. The connecting seat is provided with a first connecting hole. The lifting connecting frame includes two lifting connecting rods symmetrically arranged inside the lifting support frame. The bottom of each of the two lifting connecting rods is provided with a second connecting hole. The adjacent lifting support rods and lifting connecting rods are hinged to the first connecting hole and the second connecting hole through a hinge shaft, so as to realize the rotatable connection between the lifting support frame and the lifting connecting frame.

3. The bed frame leg movable device according to claim 2, characterized in that: A connecting crossbar is fixed near the bottom between the two lifting connecting rods of the lifting connecting frame, and a connecting piece is fixed in the middle of the connecting crossbar. Two drive motors are arranged between the two lifting connecting frames, and the output end of each drive motor is connected to one of the connecting pieces.

4. The bed frame leg movable device according to claim 1, characterized in that: The bearing assembly includes a bearing, a stepped bolt, and a bearing fixing tube. The top of the lifting support frame is provided with a through hole, and the bearing fixing tube is installed in the through hole. One side of the bearing fixing tube extends towards the side of the lifting support frame near the adjacent segmented slide groove. The bearing is installed on the extended side of the bearing fixing tube and is located in the segmented slide groove. The stepped bolt is threaded to the extended side of the bearing fixing tube, so that the bearing is limited on the bearing fixing tube and located between the lifting support frame and the stepped bolt.

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