CN203407772U

CN203407772U - Sliding-block linkage mechanism for electric bed

Info

Publication number: CN203407772U
Application number: CN201320399012.7U
Authority: CN
Inventors: 徐建春
Original assignee: JIAXING SOFTIDE ELECTRIC BED CO Ltd
Current assignee: Qi Sheng Polytron Technologies Inc
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2014-01-29
Anticipated expiration: 2023-07-05

Abstract

The utility model discloses a sliding-block linkage mechanism for an electric bed. The sliding-block linkage mechanism comprises a head member (1), an inner framework (2) and an outer framework (3) and is characterized by further comprising a head support piece (4), wherein the two ends of the head support piece (4) are respectively rotatably connected with the head member (1) and the outer framework (3), the inner framework (2) is connected with the outer framework (3) in a sliding manner, the head member (1) is rotatably connected with the inner framework (2), and the sliding-block linkage mechanism further comprises a drive device, so that the inner framework and the outer framework can move relatively so as to control the horizontal movement distance of a head bed board. The mechanism is reasonable in structure, overcomes the defect of large change of distance between the head bed board and a bed rest of a head bed board lifting structure of the traditional electric bed, and effectively controls the distance between the head bed board and the bed rest to more accord with our use habit, and the use comfort performance of the electric bed is improved.

Description

Sliding-block linkage for beddo

Technical field

The utility model relates to the driving mechanism of beddo, relates in particular to the elevating mechanism of head bed board, relates in particular to a kind of sliding-block linkage for beddo.

Background technology

Along with the raising of people's living standard, beddo progresses in people's life as a kind of emerging furniture, but most beddo has a problem, and, when head rises, head bed board, frame or support can leave bed-rest one segment distance.So can cause some object, for example (,) pillow etc. will by and bed-rest between gap fall in bedstead.When head rises in addition, also can change the position of the relative bedside cupboard of head part, head and back are too far away apart from bed-rest, the sensation that also can rely on to a kind of nothing of people.These all can affect user's activity convenience and comfort level.

For addressing the above problem, beddo employing has two kinds of methods mostly at present:

1, increase the height of bed board Soft Roll, elasticity inserts is extended to bed board below, while lifting to maximum angle to compensate head bed board and the distance of bed-rest.The method has been improved the problems referred to above to a certain extent, but does not eliminate with the distance of bed-rest, and elastomeric material consumption is many, and face shaping is very limited.

2, beddo adopts upper and lower framework apart, upper frame is placed in underframe guideway with bearing, with two flexible knitting bands, upper frame and underframe are held, while lifting to realize head bed board, by braid over braid, pull upper frame to move to bed-rest direction, make head bed board and bed-rest apart from keeping within the specific limits.Should say that this is a kind of breakthrough, but also have it self a lot of defects and restriction.First, due to this structure and loading characteristic, limited the use that starts the stage of lifting at head bed board, in order to address this problem, mostly adopt segmentation structure, the incipient stage makes braid over braid lax, until head bed board just pulls upper frame to move after being promoted to 20-30 °.This distance of initial stage that so head bed board promotes does not have controlled, and braid over braid in the incipient stage in relaxed state, can bring uncontrollable risk, be for example involved in foreign material, tie a knot etc.Secondly, flexible knitting band can only bearing tension, and problem that can slippage cannot solve upper frame and be subject to bed-rest direction power time.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of sliding-block linkage for beddo, this mechanism is rational in infrastructure, overcome the defect of conventional electric head of a bed portion bed board lift structure, effectively controlled distance between head bed board and bed-rest, improved the comfortableness that beddo uses.

For solving the problems of the technologies described above, the utility model is a kind of sliding-block linkage for beddo, comprise head component, inner frame and outside framework, and comprise head support, the two ends of described head support are rotationally connected with described head component and described outside framework respectively; And described inner frame and described outside framework are slidably connected, described head component and described inner frame are rotationally connected; And described sliding-block linkage also comprises drive unit, so that described inner frame and outside framework can relatively move, relative sliding in the horizontal direction for example, to control the distance of head bed board horizontal movement.

Further, described inner frame is positioned on outside framework and by chute and is flexibly connected, under motor drives, described inner frame and outside framework relative level move, described head component is the bow that comprises arc chute, described inner frame comprises bearing pin, side one end that described bow is positioned at described inner frame connect described head component bottom surface, and described bearing pin is located at the side of described inner frame and is positioned at the arc chute of described bow.

Further ，Ben mechanism also comprises pull bar, and described head component middle part is provided with arc elongated slot, and described pull bar one end is articulated with described inner frame side, the other end is articulated with in the arc elongated slot of described crank.

Further, described head support is crank or rocking bar form, and can be made by for example plastics.

Further, described drive unit is pushing motor, and it is set up with described outside framework and is connected with described head component, so that described inner frame and outside framework can relatively move.

Alternatively, described drive unit can be rotary electric machine, and it is configured to be connected with described head support, and this rotary electric machine rotates this head support, to drive the motion of whole mechanism.

Further, the near distance between described head component, described head support and the tie point of described inner frame seemingly meets the length of Si Luoyushi (Scott-Russell) straight-line mechanism.

This mechanism is rational in infrastructure, has overcome the defect of conventional electric head of a bed portion bed board lift structure, effectively controls distance between head bed board and bed-rest, has improved the comfortableness that beddo uses.

Accompanying drawing explanation

Below in conjunction with drawings and embodiments, the utility model is described in further detail:

Fig. 1 is that the utility model is for the schematic diagram of the crank block linkage of beddo;

In Tu2Wei Ben mechanism, head bed board is positioned at the schematic diagram of horizontal level;

In Tu3Wei Ben mechanism, head bed board is positioned at the schematic diagram of extreme higher position;

The schematic diagram of Tu4Wei Ben mechanism practical application in beddo.

The specific embodiment

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model comprises that for the crank block linkage of beddo head component 1(the present embodiment is for disposing the head bed board of bed board), inner frame 2 and outside framework 3, described inner frame 1 is positioned on outside framework 2 and by chute 21 and is flexibly connected, under motor drives, described inner frame 2 moves with outside framework 3 relative levels, this mechanism also comprises for example crank of head support 4(), and head component can comprise the bow 5 that has arc chute push rod 7(linear electric motors) and two bearing pins 6.Described crank 4 two ends are front end edge 31 and described head bed board 1 bottom surface of hinged described outside framework 3 respectively, side one end that described bow 5 is positioned at described inner frame 2 connect described head bed board 1 bottom surface, described two bearing pins 6 are located at the side of described inner frame 2 and are positioned at the arc chute of described bow 5, and described push rod 7 one end are articulated with the other end that described inner frame 2 sides, the other end are flexibly connected described bow 5.

Alternatively, the drive unit of this mechanism can be also a kind of rotary electric machine (not shown), (be used for driving except inside casing, or head gripper shoe) it replaces push rod 7 to be connected with crank 4 and driving crank 4, so that drive whole mechanism kinematic, produce the lifting activity of head bed board.

Further ，Ben mechanism also comprises pull bar 8, and described crank 4 middle parts are provided with arc elongated slot 41, and described pull bar 8 one end are articulated with described inner frame 2 sides, the other end is articulated with in the arc elongated slot 41 of described crank 4.

Particularly in ，Ben mechanism head bed board 1 with inner frame 2 for revolute pair is connected, its by two bearing pins 6 relative sliding in the arc chute of bow 5 realize, center of rotation is equivalent to the center of circle of bow 5.Push rod 7(pushing motor) with bow 5 for moving sets is connected, the running of motor, makes push rod 7 promote the position that bows 5 limit along two bearing pins 6 and moves, bow 5 promotes the position that head bed boards 1 limit by crank 4 and rotates simultaneously; Wherein head component 1, inner frame 2, outside framework 3, crank 4 form Liao Si rod slide mechanism (Si Luoyushi (Scott-Russell) straight-line mechanism).By the driving of push rod 7, make the rotation of head bed board 1 can force inner frame 2 to bed-rest 9 direction motions, to control head component 1 due to the distance between peak A after rotating and bed-rest 9.Alternatively, Gai Si rod slide mechanism also can be not shown by a rotary electric machine replacement push rod 7(), this rotary electric machine is connected with crank 4.During this rotary electric machine work, driving crank 4 rotates, and can produce the motion between above-mentioned connecting rod slider equally, so that produce the lifting activity of head bed board.Certainly, type of drive is not limited only to above-mentioned this two class, and other type of drive also can be used, as long as change driving, can make this linkage rod slide block mechanism produce motion.

In theory, when meeting Si Luoyushi (Scott-Russell) straight-line mechanism particular kind of relationship Shi，Gai mechanism, the length between each tie point and relative position between inner frame 2, outside framework 3, head bed board 1 and crank 4 become a straight-line mechanism.Head bed board 1 peak A can be at left and right directions non-displacement; Also can select to adjust above-mentioned relation, at the left and right directions displacement that guarantees head bed board 1 peak A, be less than a certain setting value, obtain like this approximate straight-line mechanism, Zhe Yeshiben requirement that mechanism expects.In fact, for meeting other structural requirements of beddo, this approximate straight-line mechanism of more employings in reality.

In this mechanism, crank 4 is as the main connection between housing in electric bed frame, and makes inner frame 2, outside framework 3, head bed board 1, crank 4 become a crank (rocking bar) slide block straight line or approximate straight line motion mechanism.In actual applications, when head bed board 1 rotational angle is when larger, head bed board 1 peak A is subject to after power left, point A have a segment distance to left dislocation, therefore between inner frame 2 and crank 4, increase pull bar 8, between pull bar 8 and inner frame 2 for revolute pair is connected, pull bar 8 by between crank 4 and head bed board 1 for planar higher pairs is connected, so effectively strengthen the rigidity of whole mechanism, improved the problem of horizontal direction displacement while being subject to left-hand power.

This mechanism can be located at respectively the both sides (in Fig. 4, the bow of beddo one side is not shown) of beddo head bed board, the track of head bed board peak A is more accurate, omnidistance controlled, and situation about meeting accident while pulling upper and lower framework without traditional flexible knitting band and other structural members.This mechanism advantages of simple, and can select flexibly driving link, make total more flexible, improve the efficiency of Liao Ben mechanism operation.

Above embodiment only as an example, does not play restriction effect to protection domain of the present utility model.Those skilled in the art on this basis, can, in the protection domain of the utility model claim, be contemplated to other embodiments that can realize identical function.

Claims

1. the sliding-block linkage for beddo, comprise head component (1), inner frame (2) and outside framework (3), it is characterized in that, also comprise head support (4), the two ends of described head support (4) are rotationally connected with described head component (1) and described outside framework (3) respectively; And described inner frame (2) is slidably connected with described outside framework (3), described head component (1) is rotationally connected with described inner frame (2); And described sliding-block linkage also comprises drive unit, so that described inner frame and outside framework can relatively move.

2. sliding-block linkage according to claim 1, it is characterized in that, described head component is the bow that comprises arc chute, described inner frame comprises bearing pin, side one end that described bow is positioned at described inner frame connect described head component bottom surface, and described bearing pin is located at the side of described inner frame and is positioned at the arc chute of described bow.

3. sliding-block linkage according to claim 1, it is characterized in that: this mechanism also comprises pull bar, described head support is provided with arc elongated slot, and described pull bar one end is articulated with described inner frame side, the other end is articulated with in the arc elongated slot of described head support.

4. sliding-block linkage according to claim 1, is characterized in that, described head support is crank or rocking bar form.

5. sliding-block linkage according to claim 4, is characterized in that, described head support is made of plastics.

6. sliding-block linkage according to claim 1, is characterized in that, described drive unit is pushing motor, and it is set up with described outside framework and is connected with described head component, so that described inner frame and outside framework can relatively move.

7. sliding-block linkage according to claim 1, is characterized in that, described drive unit is rotary electric machine, and it is configured to be connected with described head support and the latter is rotated.

8. sliding-block linkage according to claim 1, is characterized in that, the near distance between described head component, described head support and the tie point of described inner frame seemingly meets Si Luoyushi straight-line mechanism length.