CN109820333A

CN109820333A - Lifting desk, lifting sofa and Height-adjustable

Info

Publication number: CN109820333A
Application number: CN201910273508.1A
Authority: CN
Inventors: 邢立天; 邢川明
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-08
Filing date: 2019-04-05
Publication date: 2019-05-31
Also published as: CN108903236A

Abstract

The present invention relates to desk, sofa and beds.The present invention will provide the lifting desk, lifting sofa and Height-adjustable that a kind of structure is simply adjustable height.A kind of lifting desk (all persons can be lifting sofa or Height-adjustable) includes desk body (all persons can or sofa body or bed body) and flexible leg device, flexible leg device includes left leg support, right leg support and operating mechanism, left leg support and right leg support are all mainly rotatablely connected at a certain distance from respectively from upper end by two support members, one support member upper end of left leg support and right leg support is all rotatablely connected another support member upper end with desk body and all constrains in a certain range that can be horizontally slipped below desk body and be rotatablely connected with nut or screw rod, the nut or screw rod that screw rod or nut and another support member upper end rotation connection of left and right leg support are equipped in desk body cooperate, cooperate on the screw rod or nut that operating mechanism is mounted in desk body with it, the support of contacting to earth of left and right leg support lower end can make lifting desk stand on ground.This desk, sofa and bed are simple and are turned up conveniently.

Description

Lifting desk, lifting sofa and Height-adjustable

Technical field

The present invention relates to desk, sofa and beds, and in particular to lifting desk, lifting sofa and the lifting of adjustable height Bed.

Background technique

The height of general desk, sofa and bed is all fixed and invariable, but people's individual is wished with the Bu Tong total of period It is adjustable their height.Application No. is a kind of 201710828097.9 entitled student's intelligent desks, application No. is A kind of 201710875542.7 entitled upright old man's couch of auxiliary, application No. is 201710985757.4 entitled Height-adjustables etc. Chinese patent application just respectively describes the desk, sofa and bed for being adjustable height.This several patent all uses feed screw nut vertical Setting manipulates their relative rotations with electricity consumption motivation is merged, to be made into desk, sofa and the bed that can be gone up and down.But they Structure is all complex.

Summary of the invention

The technical problem to be solved in the present invention is to improve to the prior art, provides one under same inventive concept Kind structure is simply adjustable the lifting desk, lifting sofa and Height-adjustable of height.

The present invention solve above-mentioned technical problem technical solution be.

A kind of lifting desk, this lifting desk include desk body and flexible leg device, and flexible leg device includes left leg support, right leg Frame and operating mechanism, left leg support and right leg support are all mainly rotatablely connected at a certain distance from respectively from upper end by two support members, The upper end of two support members of left leg support is placed on desk body left part in the following, the upper end of two support members of right leg support is placed under desk body right part One support member upper end of face, left leg support and right leg support is all rotatablely connected another support member upper end with desk body and all constrains in below desk body It is rotatablely connected in a certain range that can be horizontally slipped and with nut or screw rod, screw rod or/and nut and left leg is installed in desk body The nut or/and screw rod of another support member upper end of frame and right leg support rotation connection match, and operating mechanism, which is installed on, to be mounted on It matches or is mounted in desk body with the screw rod or/and nut being mounted in desk body on screw rod or/and nut in desk body and pass through Driving member is matched with the screw rod or/and nut being mounted in desk body, and the support of contacting to earth of left leg support and right leg support lower end can make to go up and down Desk stands on ground.

A kind of lifting sofa, this lifting sofa include sofa body and flexible leg device, and flexible leg device includes left leg support, the right side Leg support and operating mechanism, left leg support and right leg support be all mainly rotatablely connected at a certain distance from respectively from upper end by two support members and At the upper end of two support members of left leg support is placed on sofa body left part in the following, the upper end of two support members of right leg support is placed on sofa body Right part is in the following, a support member upper end of left leg support and right leg support is all rotatablely connected another support member upper end with sofa body all constrains in Be rotatablely connected in a certain range that can horizontally slip below sofa body and with nut or screw rod, be equipped on sofa body screw rod or/ The nut or/and screw rod being rotatablely connected with nut and another support member upper end of left leg support and right leg support match, operating mechanism Be installed on the screw rod or/and nut being mounted on sofa body matched with the screw rod or/and nut being mounted on sofa body or It is mounted on sofa body and is matched by driving member with the screw rod or/and nut being mounted on sofa body, left leg support and right leg support Lower end support of contacting to earth can make lifting sofa stand on ground.

A kind of Height-adjustable, this Height-adjustable include bed body and flexible leg device, flexible leg device include left leg support, right leg support and Operating mechanism, left leg support and right leg support are all mainly rotatablely connected at a certain distance from respectively from upper end by two support members, left leg The upper end of two support members of frame is placed on bed body left part in the following, the upper end of two support members of right leg support is placed on bed body right part in the following, a left side One support member upper end of leg support and right leg support is all rotatablely connected another support member upper end with bed body and all constrains in an energy left side below bed body Be rotatablely connected in a certain range of right sliding and with nut or screw rod, be equipped in bed body screw rod or/and nut and left leg support and The nut or/and screw rod of another support member upper end rotation connection of right leg support match, and operating mechanism, which is installed on, is mounted on bed body On screw rod or/and nut on match or be mounted on the screw rod or/and nut being mounted in bed body and pass through transmission in bed body Part is matched with the screw rod or/and nut being mounted in bed body, and the support of contacting to earth of left leg support and right leg support lower end can make Height-adjustable station Stand on ground.

Desk, sofa, bed have leg.Desk body is the main part outside desk removing leg.Sofa body is that sofa removes outside leg Main part.Bed body is the main part outside bed removing leg.Left leg support and right leg support are all mainly by two support members respectively from upper It is rotatablely connected at a certain distance from end, can be exactly to be rotatablely connected at a certain distance from respectively from upper end by two support members, Be also possible to two support members respectively from upper end at a certain distance from rotation connection made of on the basis of increase other beneficial parts and At.Operating mechanism is to make to be mounted on desk body or screw rod in sofa body or bed body or/and nut rotates and reverse to make to rise The mechanism of desk or lifting sofa or Height-adjustable lifting drops.

Support member is the component for forming leg support and playing a supportive role.Support member has length, width, thickness.To make to support steady support member Generally use the biggish wide support member of the smaller width of thickness.Due to the length relation between support member to be related to, it is to describe herein How the length of support member determines.The length of support member should be determined with the place of upper and lower side top lifting Zhi Zuoyong, that is, upper and lower side position. No matter each position in width support member upper end of support member is substantially on the same line, each position in support member lower end is also substantially the same as always On line.It is known as upper end position by the straight line of each position in support member upper end, lower end is known as by the straight line of each position in lower end Position.The upper end position and lower end position of support member are substantially parallel to one another.The length of support member is exactly support member upper and lower side The distance of position.However, support member will rotate, the support member upper and lower side topmast position and upper and lower side position after rotation are all Have some variations, there are also variations for the use length of support member, thus, it would be desirable to find closest to each position of upper and lower side and The reference line of constant upper and lower side determines the length of support member again.Support member upper end be rotatablely connected or horizontally slip cooperation have hole or The axis (center line) of axis, this hole or axis is exactly the straight line constant close to upper end position, can be used as the benchmark of support member upper end Line.Support member lower end to contact to earth support using support member it is upright when lower end position as lower end reference line.Support member lower end will be rotatablely connected , certainly namely using the axis of rotation connection as lower end reference line.The upper end reference line and lower end reference line of support member are basic It is parallel to each other.The length of support member is exactly the distance of its upper and lower side reference line.From being exactly upper end reference line at a certain distance from support member upper end The direction long along the support member somewhere with a certain distance from upper end in parallel.

The upward angle that two support members are formed using being rotatablely connected axis as vertex, that is, pass through two support member upper end reference lines The upward dihedral angle formed with two planes of rotation connection axis is known as the angle of two support members.The angle of two support members becomes larger leg support It will reduce, the angle leg support that becomes smaller will increase.

Rectangular slab, trapezoidal plate all can serve as wide support member.The wide support member of rectangular slab is known as the wide support member of square plate.The wide support member of trapezoidal plate The referred to as wide support member of gangboard.The multi-purpose rod piece of wide support member, which is fastenedly connected, is integrated composition.The wide support member weighing lever being made of rod piece connection is wide Support member.Have in the wide support member of bar left side bar and the right bar and left side bar and the right bar basically perpendicular to upper and lower side reference line, and it is upper Reference line this wide support member of bar as constituting rectangle in lower end is known as the wide support member of square bar.There are left side bar and the right side in the wide support member of bar Side rod but upper and lower side reference line or a side rod are all not orthogonal to basically perpendicular to upper and lower side reference line, this left and right side rod and upper and lower side Reference line as constitute it is trapezoidal this wide support member of bar be known as the wide support member of ladder bars.The wide support member of square bar is best in above-mentioned width support member We preferentially use.Rod piece cross section in the wide support member of bar can be varied, and angle steel, steel pipe, round steel, cross section are rectangle or sky The rod piece of heart rectangle is ok, cross section be hollow rectangle steel rod elements preferably we often it welded be made into the wide support member of bar. As long as the left and right leg support lower end that it is constituted regardless of support member is contacted to earth, support can make lifting desk or lifting sofa or Height-adjustable Standing on ground is exactly support member here.The support of contacting to earth of left and right leg support lower end can make lifting desk or lifting sofa or Height-adjustable station Standing on ground is that leg support lower end has phase to contact to earth from farther away multiple spot.

The upper end of support member constrains in a certain range that can be horizontally slipped below desk body or sofa body or bed body and can also say and be The upper end of support member constrains in below desk body or sofa body or bed body in a certain range of energy side-to-side movement.Usually pass through desk body or sand Horizontal guide grooves below hair body or bed body are constrained in support member upper end in a certain range that can be horizontally slipped by axis.

Another support member upper end of left leg support and right leg support is usually all rotatablely connected with nut or screw rod, but can also be with one It is rotatablely connected with nut rotation connection another one and screw rod, so, another support member upper end of left leg support and right leg support, which rotates, to be connected Be connected to: nut or screw rod or nut and screw rod, nut or screw rod or nut and screw rod are abbreviated as nut or/and screw rod, so Just say the nut or/and screw rod of another support member upper end rotation connection of left leg support and right leg support.Since left leg support and right leg support Another support member upper end be rotatably connected to nut or/and screw rod, then, screw rod will be installed in desk body or sofa body or bed body Or/and nut (i.e. screw rod or nut or screw rod and nut) is matched.It will usually install in desk body or sofa body or bed body Screw rod or/and nut are integrally formed, and it can be rotated around same axis but limits its axial movement.In some cases, two The nut of another support member upper end rotation connection can be the same nut and be mounted in desk body or sofa body or bed body one Screw rod matches, or the screw rod of two another support member upper end rotation connections can be same root screw rod and be mounted on desk body or sofa A nut on body or bed body matches.Operating mechanism is to operate the screw rod being mounted in desk body or sofa body or bed body Or/and the mechanism of nut rotation.

Nut or/and screw rod with another support member upper end rotation connection of left and right leg support cannot be rotatable around its axis, when therewith When being mounted on desk body or screw rod in sofa body or bed body or/and nut pivoting of cooperation, in another support member of left and right leg support The nut or/and screw rod for holding rotation connection will be axially moved and drive its support member upper end side-to-side movement, to change left and right leg The angle of two support member of frame.As long as thread rotary orientation and lead that we design screw rod and nut can be accomplished, when being mounted on desk body Or screw rod in sofa body or bed body or/and nut when being rotated to a direction or so the angle of two support members of leg support just synchronize Become larger, this two support members angle, which synchronizes, when rotating to other direction becomes smaller.

This leg device that stretches is installed on desk body or sofa body or bed body in the following, allowing by us as described in technical solution The support of contacting to earth of left leg support frame and right leg support lower end makes lifting desk or lifting sofa or Height-adjustable stand on ground, passes through operation machine Screw rod from bed body to a direction or/and nut that structure is rotatably installed in desk body or sofa body or make two support members of left and right leg support When becoming larger simultaneously lifting desk or lifting sofa or Height-adjustable will reduce angle, be rotated by operating mechanism to other direction This screw rod or/and nut make the angle of two support members of left and right leg support while will make this lifting desk or lifting sofa when becoming smaller Or Height-adjustable increases.Screw rod and nut cooperation can self-locking motionless guarantee lifting desk or liters when not rotating this screw rod or/and nut Dropping sofa or Height-adjustable, just height is constant herein.This Retractive leg apparatus structure is again simple, and the present invention is just in same invention structure in this way Lifting desk, lifting sofa and Height-adjustable that a kind of structure is simply adjustable height are provided under think of.

We allow left leg support and right leg support respectively mainly by a long support member and a short support member in the lower end of short support member The long midpoint of place and long support member is rotatablely connected, and the length of long support member is allowed to be two times of short support member length, allow left leg support and The equal length of the long support member of right leg support, allow left leg support and right leg support short support member equal length, by left leg support and right leg support The upper end of short support member be all rotatablely connected with desk body or sofa body or bed body, all by the upper end of left leg support and the long support member of right leg support It constrains in a certain range that can be horizontally slipped below desk body or sofa body or bed body and is rotatablely connected with nut or screw rod.It can be with Prove that lifting desk or lifting sofa or Height-adjustable left and right leg support lower end during liter or drop worked it out so substantially may be used To accomplish not slide ground and can make lifting desk or lifting sofa or Height-adjustable smooth vertical to go up and down.

We allow left leg support and right leg support mainly to be existed respectively by the wide support member of one long square bar and the wide support member of one short square bar The midpoint long with the wide support member of long square bar is rotatablely connected at the lower end of the short wide support member of square bar, allows the length of the long wide support member of square bar Two times of the wide support member length of short square bar, allow left leg support and right leg support the long wide support member of square bar equal length, allow left leg support and The equal length of the short wide support member of square bar of right leg support, by the upper end of left leg support and the short wide support member of square bar of right leg support all with desk body or Sofa body or bed body rotation connection, all constrain in desk body or sofa body for the upper end of left leg support and the long wide support member of square bar of right leg support Or it is rotatablely connected in a certain range that can be horizontally slipped below bed body and with nut or screw rod.The lifting desk or liter made in this way It drops sofa or Height-adjustable is very steady and the provable lifting desk worked it out in this way or lifting sofa or Height-adjustable are rising or dropping Leg support lower end in left and right can accomplish not slide ground and can make lifting desk or lifting sofa or Height-adjustable flat substantially in the process Steady vertical lift.

The long midpoint of above-mentioned long support member is not the absolute midpoint in mathematics, can only be the certain model in midpoint or so in practice In enclosing.

The support member of leg support is typically constructed of metal, even if not sliding over the ground it is also possible to injuring substantially when leg support lower end is gone up and down Ground, for this purpose, plastic tip or the also settable idler wheel in rubber end is arranged in leg support lower end in we.

There are many type of operating mechanism, and will take turns operating mechanism or sprocket wheel chain operating mechanism or rocking handle using pedaling here Operating mechanism or motor-operating mechanism.Pedaling wheel operating mechanism is mainly the wheel that can be turned with pedal, is usually installed on it Matched on the screw rod or/and nut in desk body or sofa body or bed body with this screw rod or/and nut, but also it is mountable It is matched by driving member with the screw rod or/and nut in desk body or sofa body or bed body.Sprocket wheel chain operating mechanism is exactly The sprocket wheel chain of the such principle of chain block, usually it is installed on be mounted on desk body or screw rod in sofa body or bed body or/ It is matched on nut with this screw rod or/and nut, it is also mountable to pass through driving member and institute in desk body or sofa body or bed body It states screw rod or/and nut matches.Rocking handle operating mechanism is mainly exactly that it is usually installed on and is mounted on desk body or sofa by rocking handle Cooperate on screw rod or/and nut on body or bed body with it, it is also mountable to pass through driving member in desk body or sofa body or bed body It is matched with the screw rod or/and nut.Motor-operating mechanism includes motor, control route etc., and motor is mounted on table The screw rod or/and nut matching for passing through driving member on body or sofa body or bed body and being mounted on desk body or in sofa body or bed body It closes.Driving member recited above is the component of passing movement, such as gear, pulley belt.Operating mechanism and screw rod or and spiral shell Parent phase cooperation can directly or indirectly drive screw rod or/and nut to rotate and reverse.

Lifting desk, lifting sofa and lifting bed structure of the invention is simple and convenient to operate, and people can be made to live study more Add fine.

Detailed description of the invention

Fig. 1 is a kind of main view of the lifting desk of embodiment 1.

Fig. 2 is the main view of a short support member in embodiment 1.

Fig. 3 is the left view of the short support member of Fig. 2.

Fig. 4 is the main view of a long support member in embodiment 1.

Fig. 5 is the left view of Fig. 4 long support member.

Fig. 6 is the top view that left even frame, left leg support and feed screw nut cooperate shape in Fig. 1.

Fig. 7 is a kind of main view of the lifting sofa of embodiment 2.

Fig. 8 is the top view of left even frame in Fig. 7, right even frame, left leg support, right leg support and feed screw nut's cooperation shape.

Fig. 9 is a kind of main view of the Height-adjustable of embodiment 3.

Figure 10 is the main view of a short support member in embodiment 3.

Figure 11 is the left side view of short support member in Figure 10.

Figure 12 is the main view of a long support member in embodiment 3.

Figure 13 is the left side view of long support member in Figure 12.

Figure 14 is the square frame of the bed body of Height-adjustable in embodiment 3 and its top view for the part that is installed on it.

Above figure is all the structural schematic diagram of principle of specification.

Specific embodiment

The present invention is described in detail below in conjunction with attached drawing.

Embodiment 1.

Embodiment 1 is lifting desk.

A kind of lifting desk of embodiment 1 as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6.A kind of lifting desk 1, this liter Dropping desk 1 includes desk body 2 and flexible leg device, and flexible leg device includes left leg support, right leg support and operating mechanism 4, left leg support and Right leg support is all mainly rotatablely connected at a certain distance from respectively from upper end by two support members, two support members 5,6 of left leg support Upper end is placed on 2 left part of desk body in the following, the upper end of two support members 7,8 of right leg support is placed on 2 right part of desk body in the following, left leg support and right leg One support member 5 of frame, 7 upper ends are all rotatablely connected another support member 6 with desk body 2,8 upper ends all constrain in desk body 2 below can left and right It is rotatablely connected in a certain range of sliding and with nut, another support of screw rod 3 and left leg support and right leg support is installed in desk body 2 The nut that part 6,8 upper ends are rotatablely connected matches, and operating mechanism 4 is installed on the screw rod 3 being mounted in desk body 2 and is mounted on table Screw rod 3 on body 2 matches, and the support of contacting to earth of left leg support and right leg support lower end can make lifting desk stand on ground.

The left leg support and right leg support of this example are all respectively mainly by a long support member and a short support member in the lower end of short support member The midpoint of place and long support member length is rotatablely connected, and the length of long support member is two times of short support member length, left leg support and right leg The equal length of the short support member 5,7 of the equal length of the long support member 6,8 of frame, left leg support and right leg support, left leg support and right leg support The upper end of short support member 5,7 is all rotatablely connected with desk body 2, and the upper end of the long support member 6,8 of left leg support and right leg support all constrains in desk body 2 Distinguish in a certain range that can be horizontally slipped below and all and is respectively rotatablely connected with a nut.

The left leg support and right leg support of this example are all mainly existed by the wide support member of one long square bar and the wide support member of one short square bar respectively It is rotatablely connected at the lower end of the short wide support member of square bar with the midpoint of the wide support member length of long square bar, the length of the long wide support member of square bar is Two times of the short wide support member length of square bar, the equal length of the wide support member 6,8 of the long square bar of left leg support and right leg support, left leg support and right leg The equal length of the wide support member 5,7 of the short square bar of frame, the upper end of the wide support member 5,7 of the short square bar of left leg support and right leg support all with desk body 2 Rotation connection, the upper end of the wide support member 6,8 of the long square bar of left leg support and right leg support all constrain in one that desk body 2 can horizontally slip below Determine in range and to be all respectively rotatablely connected with a nut respectively.

Desk body 2 include the desktop of upper end, three drawers on top, lower part left cabinet 10 and right cabinet 11.Under left cabinet 10 Face is exactly below the left part of desk body 2.It is exactly below the right part of desk body 2 below right cabinet 11.Left cabinet 10 is below and below right cabinet 11 All in same level.

It is left even 12 rectangular frame-shaped of frame, by the unequal angle short side of four sections of same models face upward long side weld downwards and At.Preceding angle steel 13 and 14 short side of rear angle steel are outwardly.Left comer steel 15 and 16 short side of right corner steel are inwardly.It is left even frame 12 preceding angle steel 13 to Under long side on left part be drilled with hole, opened and be equal on the right of this hole with the guide groove 17 of hole same level and the width of guide groove 17 Bore dia.Also correspondence has done same hole and guide groove in the downward long side of the rear angle steel 14 of left frame 12.Left even 12 4 angles of frame Steel top face is drilled with multiple apertures, and just left even frame 12 make-up is mounted below the left cabinet 10 of desk body by these apertures with wood screw Solid wood on, this it is left even frame 12 just become 2 left part of desk body below a part, just become desk body 2 left part below.Right even frame 18 is symmetrically the same with left even frame 12, and preceding angle steel 19 is drilled with hole to following the right, and left side same level is provided with guide groove 20, thereafter angle steel On also correspondence done identical hole and guide groove.The size in hole and guide groove on right even frame is identical as the left even hole of frame and guide groove.It is left Hole and guide groove on right frame is all in the same horizontal position.Right even frame 18 and left even frame 12 tighten be installed on table in the same way On solid wood below the right cabinet 11 of body 2, become a part below 2 right part of desk body, below the right part for just becoming desk body 2.

Support member 5 is as shown in Figure 2 and Figure 3.Support member 5 is welded by the left side bar 21, the right bar 22 and cross bar 25 of steel.It is left Side rod 21 and the right bar 22 are the long poles such as two that identical cross-section is hollow rectangle.Left side bar 21 and the right bar 22 are in Fig. 2 Middle leptoprosopy is wide forwards, backwards towards left and right.Left side bar 21 is parallel with the right bar 22.Cross bar 25 is also the bar that cross section is hollow rectangle Part.Left side bar 21 and the right bar 22 are perpendicular to cross bar 25.The centerline in the wide face of left side bar 21 and 22 upper end of the right bar is drilled with The same circular hole of same axis.Center line, that is, axis by 22 upper end hole of left side bar 21 and the right bar is exactly the upper end of support member 5 Reference line.Left side bar 21 and 22 lower end of the right bar will also be drilled with same with the rotation connection of the support member 6 wide face centerline in its lower end The axis of the same circular hole of axis, this two bars lower end circular hole is exactly the lower end reference line of support member 5.This upper and lower side reference line is equal Row.The distance of this upper and lower side reference line is exactly the length of support member 5, that is, left side bar and the right bar from upper end hole center to lower stomidium The length at center.Left side bar and the right bar seem to constitute rectangle sample with them perpendicular to upper and lower side reference line, so this support member 5 It is the wide support member of square bar.

Support member 6 is as shown in Figure 4, Figure 5.Support member 6 is welded by the 23 the right bar 24 of left side bar and cross bar 26 and cross bar 27 of steel It connects.Left side bar 23 and the right bar 24 are the rod pieces with 5 or so side rod same model cross section of support member for hollow rectangle.It is left Distinguish a part of the lower end of grafting Ru ー plastic tip 28,29 one-tenth its bars in the lower end of side rod 23 and the right bar 24.Left side bar 23 and the right bar 24 be parallel to each other.On the left side, it is same with the wide face centerline in 24 upper end of the right bar to be drilled with same axis for bar 23 Circular hole and this Circularhole diameter is identical as the hole of 5 or so side rod upper end of support member.The axis of 24 upper end hole of this left side bar 23 and the right bar It is exactly the upper end reference line of support member 6.Namely pass through support by the straight line of minimum point among left side bar 23 and 24 lower end of the right bar Part 6 uprightly contact to earth lower end contact to earth position straight line be exactly support member 6 lower end reference line.This upper and lower side reference line is parallel.Support The length of part 6 is exactly the distance of this upper and lower side benchmark.This length i.e. 24 upper end central point of hole of left side bar 23 and the right bar are to lower end The length of intermediate lowest part.Left side bar 23 and the right bar 24 with upper and lower side reference line is perpendicular seems to constitute rectangle sample, this support member 6 It is also the wide support member of square bar.The length of support member 6 is two times of 5 length of support member.The midpoint that bar 23 and the right bar 24 are grown on the left side is also It is drilled with same axis circular hole identical with the lower stomidium of support member 5, this hole is exactly the hole of the long midpoint of support member 6.The width of support member 6 is slightly Less than the lower part that the width of support member 5 can just be caught in support member 5.

The hole that 5 the right bar of support member, 22 lower end is passed through with axis 30 passes through support member 6 across the hole of 6 the right bar of support member, 24 midpoint The hole of 23 midpoint of left side bar, across the hole of 5 left side bar of support member, 21 lower end, then, the both ends of axis 30 are inserted into 30 hole of axis with pin Under lock and key, just support member 5 and 6 rotation connection of support are got up as left leg support with the midpoint of the length of support member 6 at the lower end of support member 5 ?.Support member 5 and support member 6 are exactly left two support member angle of leg support using 30 axis of the axis angle upward as vertex.

The hole that 13 left side of angle steel before left even frame 12 is passed through with axis 31, across the hole of 5 the right bar of support member, 22 upper end, across support member The hole of 5 left side bar, 21 upper end, the corresponding hole in 14 left side of angle steel after left even frame 12, then the hole of axis 31 is inserted at both ends with pin Under lock and key, just 5 upper end of support member is rotatably connected in the left even hole of frame 12, i.e., is rotatablely connected with desk body 2.Nut 9 be one compared with Long nut.One section of steel pipe 32 is vertically welded with below nut 9.The guide groove 17 that left 12 the right of even frame is passed through with axis 33, wears The hole for crossing 6 the right bar of support member, 24 upper end, the hole of the steel pipe 32 below nut 9, across the hole of 6 left side bar of support member, 23 upper end, Across the left even corresponding guide groove of frame relief angle 14,6 upper end of support member is just constrained in into can horizontally slip in the left even guide groove of frame 12 one Determine in range, that is, constrains in a certain range that desk body 2 can horizontally slip below, be just rotatablely connected 6 upper end of support member with nut 9 Get up.Steel pipe 32 is tightly inserted in pin 42 and 33 Kong Zhongfang axis 33 of axis slides axially.It certainly can also be in 33 both ends washer of axis and pin Axis 33 is limited to its axial movement under lock and key.

Right even frame 18 and left even frame 12 are symmetrically the same.Right even frame 18 is mounted on 2 right side of desk body with the same manner with left even frame 12 Cabinet 11 becomes a part below 2 right part of desk body below.Support member 7 and support member 8 are all the wide support members of square bar.Support member 7 and 5 structure of support member It is identical.Support member 8 is identical as 6 structure of support member.8 the right bar of support member, 34 lower end is also plugged with 35 left side bar lower end also grafting of plastic tip There is same plastic tip to become the lower end of its left and right side rod.The length of support member 8 is also two times of 7 length of support member.Support member 7 and support member 8 are also got up with the midpoint rotation connection of the length of support member 8 as right leg support at the lower end of support member 7 with axis 39.The right side is passed through with axis 36 The even hole before frame 18 on the right of angle steel 19, passes through across the hole of 7 the right bar of support member, 37 upper end across the hole of 7 left side bar upper end of support member Hole corresponding on the right of angle steel after right even frame, then both ends are inserted into 36 hole of axis under lock and key with pin, are just rotated 7 upper end of support member and are connected It connects in the right even hole of frame 18, i.e., is rotatablely connected with desk body 2.It is also one as nut 9 with 8 upper end of support member rotation connection nut A longer nut is also vertically welded with a Duan Gangguan below nut.Right 19 left side of angle steel before connecting frame 18 is passed through with axis 38 Guide groove 20 across the hole of the steel pipe of nut described above, pass through 8 left side bar of support member across the hole of 8 the right bar of support member, 34 upper end The hole of upper end passes through the right even corresponding guide groove of frame relief angle, and just constraining in 8 upper end of support member in the right even guide groove of frame 18 can left and right cunning In dynamic a certain range, that is, constrain in a certain range that desk body 2 can horizontally slip below and just by 8 upper end of support member and nut Rotation connection is got up.Also it uses in the steel pipe of nut for having pin insertion and the rotation connection of 8 upper end of support member and the hole of axis 38 with limit Axis 38 is axially moved.

3 left part 40 of screw rod and the smaller middle part 41 of right part diameter are relatively large in diameter.3 middle part 41 of screw rod does not have screw thread.3 left part of screw rod 40 are formed respectively with screw pitch identical oppositely oriented single line trapezoidal thread with right part.The right corner steel 16 of left even frame 12 is to following midpoint Place is drilled with hole, and the left part 40 of screw rod 3 passes through this hole and matches with the nut 9 that 6 upper end of support member is rotatablely connected.3 right part of screw rod passes through Right even 18 left comer steel of frame is matched to the hole of following midpoint with the nut that 8 upper end of support member is rotatablely connected.3 axis of screw rod perpendicular to The left and right angle steel that left and right connects frame is parallel to the front and back angle steel that left and right connects frame.When assembly 3 left and right part of screw rod symmetrically with the nut Matching keeps the folder of left leg support and right leg support support member two-by-two identical.The hole of left even frame right corner steel 16 and right even frame left comer steel passes through silk The axial movement of the shaft shoulder limitation screw rod 3 of bar 3, that is, desk body 2 limit the axial movement of screw rod 3.Screw rod 3 passes through left even frame 12 The hole of right corner steel and the hole of right company's 18 left comer steel of frame are mounted on left and right company frame and are mounted in desk body 2.

Due to nut and support member upper end rotation connection therefore screw rod 3 rotate when nut will not with screw rod 3 rotate and can be along silk Bar 3 is axially moved and drives end motion in support member 6,8.Since the thread rotary orientation difference of 3 left part of screw rod with right part works as screw rod to one Two nuts when a direction rotates with the cooperation of 3 left and right part of screw rod will be simultaneously by disturbing or deviating from.Due to 3 left and right part screw thread of screw rod Thread form screw pitch lead is all identical, thus two nuts will constant speed by disturbing or deviating from.It just will drive 6 upper end of support member when two nuts deviate from Drawn close to 5 upper end of support member, drive 8 upper end of support member drawn close to 7 upper end of support member, thus make two leg supports two-by-two support member angle simultaneously The lifting desk that becomes smaller will increase.6 upper end of support member just be will drive when two nuts are by disturbing far from 5 upper end of support member, driven in support member 8 It holds far from 7 upper end of support member, to make the two leg supports angle of the support member while lifting desk that becomes larger will reduce two-by-two.

Lifting desk 1 is raised to most when guide groove left end and before and after 38 company's of keeping right frame of axis when guide groove right end before and after 33 company's of keeping left frame of axis Height.Lifting desk 1 drops to most when guide groove right end and before and after 38 company's of keeping right frame of axis when guide groove left end before and after 33 company's of keeping left frame of axis Low clearance.The height of general desk is 80 centimetres or so, I thinks that the minimum altitude of lifting desk be 70 centimetres of maximum heights is 1 Rice can.

3 left part screw thread of screw rod is made into left hand thread right part screw thread in terms of a left side and is made into right-handed thread by us, then screw rod 3 from A left side is seen when rotating in an anti-clockwise direction two nuts will constant speed deviate from, the angle of two support member of left and right leg support will synchronize the same table that becomes smaller Son 1 will increase, on the contrary rotationally clockwise when lifting desk will reduce.Our two support members of leg support said before it is this Length relation, rotation connection relationship and with the matching relationship lifting desk of desk body in lifting leg support lower end, that is, support member 6 and support member 8 Left and right side rod lower end be substantially not over the ground slide while lifting desk 1 vertically can steadily go up and down.

Operating mechanism 4 is to pedal wheel operating mechanism 4 exactly to pedal wheel 4 for one.Wheel 4 is pedaled to be tightly connected and be installed in screw rod 3 by key The middle part in portion 41.Pedaling wheel 4 is a hollow wheel surface anti-skidding item.It is exactly to be used to operate the rotation of screw rod 3 and make lifting desk that this, which pedals wheel 4, 1 liter or drop operating mechanism 4.

Lifting desk 1 contacts to earth supported standing on ground by left leg support and right leg support lower end.Under left leg support and right leg support End support of contacting to earth is exactly that the left side bar of support member 6 and support member 8 and the right bar lower end are contacted to earth support.It and the such lower end of conventional tables Have contact to earth at relatively far apart 4 points.Since symmetrically the same so that 1 desktop level of lifting desk is stood steady for left leg support and right leg support.

We are sitting on chair when working and studying needs to adjust table height on this lifting desk 1, as long as being turned with pedal Operating mechanism is pedaled wheel 4 and is achieved that.As long as turning to pedal wheel 4 in terms of a left side counterclockwise with pedal when we need lifting desk 1 to increase Rotation is just.As long as pedaling wheel 4 with pedal turn when we need lifting desk 1 to reduce to rotate clockwise in terms of a left side. You stablize without it will not rotate automatically lifting desk 1 due to the self-locking screw rod 3 of screw rod 3 and nut cooperation when pedaling wheel 4 This height.The 1 structure simple operations of this lifting desk are very convenient.

We, which change the desk body 2 of this example into sofa body just, becomes the lifting sofa for having this structure.The desk body 2 of this example is changed into Bed body just becomes the Height-adjustable for having this structure.If suspicion pedals wheel operating mechanism and sofa and bed inconvenience are operated, it is changed to sprocket chain Operating mechanism or rocking handle operating mechanism or motor-operating mechanism.

Embodiment 2.

Embodiment 2 is lifting sofa.

A kind of lifting sofa of embodiment 2, as shown in Figure 7, Figure 8.A kind of lifting sofa 45, this lifting sofa 45 include sand Body 46 and flexible leg device are sent out, flexible leg device includes left leg support, right leg support and operating mechanism 4, and left leg support and right leg support are all main It to be rotatablely connected at a certain distance from respectively from upper end by two support members, the upper end of two support members 5,6 of left leg support is placed on sand Hair 46 left part of body is in the following, the upper end of two support members 7,8 of right leg support is placed on 46 right part of sofa body in the following, left leg support and right leg support One support member 5,7 upper ends are all rotatablely connected another support member 6 with sofa body 46,8 upper ends all constrain in sofa body 46 below can be left It is rotatablely connected in a certain range of right sliding and with screw rod, the another of nut and left leg support and right leg support is installed on sofa body 46 The screw rod that support member 6,8 upper ends are rotatablely connected matches, and operating mechanism 4 is installed on the nut being mounted on sofa body 46 and installation Nut on sofa body 46 matches, and the support of contacting to earth of left leg support and right leg support lower end can make lifting sofa stand on ground.

The left leg support and right leg support of this example are all respectively mainly by a long support member and a short support member in the lower end of short support member The midpoint of place and long support member length is rotatablely connected, and the length of long support member is two times of short support member length, left leg support and right leg The equal length of the short support member 5,7 of the equal length of the long support member 6,8 of frame, left leg support and right leg support, left leg support and right leg support The upper end of short support member 5,7 is all rotatablely connected with sofa body 46, and the upper end of the long support member 6,8 of left leg support and right leg support all constrains in sand Distinguish in a certain range that hair body 46 can horizontally slip below and all and is respectively rotatablely connected with a screw rod.

The left leg support and right leg support of this example are all mainly existed by the wide support member of one long square bar and the wide support member of one short square bar respectively It is rotatablely connected at the lower end of the short wide support member of square bar with the midpoint of the wide support member length of long square bar, the length of the long wide support member of square bar is Two times of the short wide support member length of square bar, the equal length of the wide support member 6,8 of the long square bar of left leg support and right leg support, left leg support and right leg The equal length of the wide support member 5,7 of the short square bar of frame, the upper end of the wide support member 5,7 of the short square bar of left leg support and right leg support all with sofa body 46 rotation connections, the upper end of the wide support member 6,8 of the long square bar of left leg support and right leg support all constrains in sofa body 46 below can left and right cunning Distinguish in dynamic a certain range and all and is respectively rotatablely connected with a screw rod.

Sofa body 46 includes seat portion 47 and backrest 48.Seat portion 47 is above soft bullet part, there is square grid beam 49 below.Square grid beam 49 be the grid beam for assembling rectangular in form for the thicker rod of rectangular solid by four cross sections.Square grid beam 49 is below in same water In plane.

Left frame 12 also rectangular frame-shaped similar to the left frame of embodiment 1, by the unequal angle of four sections of same models The short side long side that faces upward is welded downwards.Preceding angle steel 13 and 14 short side of rear angle steel are outwardly.16 short side of left comer steel 15 and right corner steel Inwardly.Left part has done circular hole and guide groove 17 in the same horizontal position in the downward long side of preceding angle steel 13.The corresponding position of angle steel 14 afterwards It sets and has also done same circular hole and guide groove.The right even structure of frame 18 and left even frame 12 are symmetrically the same.It is right even frame 18 by preceding angle steel 19, Angle steel 50, left comer steel 51, right corner steel 52 are welded afterwards.It is right even before frame 18 in the downward long side of angle steel 19 right part in same level Circular hole and guide groove 20 are done in position.Same circular hole and guide groove have also been done in the corresponding position of angle steel 50 afterwards.Left even 12 angle steel of frame Multiple holes are drilled on top, tightened by this multiple hole with wood screw becomes sofa below the left part of 46 square grid beam 49 of sofa body Below the left part of body 46.Multiple holes are also drilled on the top of right 18 angle steel of frame, are tightened by this multiple hole wood screw in sand The right part of 46 square grid beam 49 of body is sent out in the following, becoming below the right part of sofa body 46.Left and right connects the hole opened on the angle steel of frame front and back and leads Slot is all in same level.Left frame 12 and right frame 18 are all a part of sofa body 46.

Support member 5 is similar to the support member 5 of embodiment 1, similar to be exactly that specific size size is somewhat different, and by three Root cross section is the wide support member of square bar that hollow rectangle steel rod elements group is welded into.Support member 6 is similar to the support member 6 of embodiment 1, and by four Root cross section is the wide support member of square bar that hollow rectangle steel rod elements group is welded into.The wide face centerline of 5 or so side rod upper and lower side of support member is bored There is circular hole, left and right side rod upper end circular hole has same axis i.e. upper end reference line, and lower end circular hole also has same axis i.e. lower end benchmark Line, upper and lower reference line is parallel and vertical with left and right side rod, and the length of support member 5 is exactly the distance of its upper and lower side reference line.Support member 6 or so The wide face centerline in side rod upper end is drilled with circular hole, and left and right side rod upper end circular hole has same axis i.e. upper end reference line, left and right side rod Lower end is also plugged with the lower end reference line that plastic tip its minimum point line is exactly support member 6, upper and lower side reference line it is parallel and with Left and right side rod is vertical, and the length of support member 6 is exactly the distance of its upper and lower side reference line, and the centerline in the wide face at left and right side rod midpoint is bored There is circular hole.The length of support member 6 is 2 times of 5 length of support member.Pass through the lower stomidium of support member 5 and support member 6 as in Example 1 with axis 30 Then both ends are inserted into 30 hole of axis under lock and key with pin just as left leg support in long midpoint hole.Support member 7 is identical as support member 5.Support member 8 It is identical as support member 6.The lower stomidium and support member 8 for passing through support member 7 with axis 39 as embodiment 1 long midpoint hole and then both ends use Lock, which gets up, just forms right leg support.

It is hollow that the long round shape both ends of female bar 53, which are in the middle part of nut (having nut inner thread),.Female left even frame of 53 left part of bar insertion In the middle spot hole in the downward side length direction of 12 right corner steel 16, right part is inserted into the middle spot hole in the right even downward side length direction of 18 left comer steel of frame 51 In, it can be rotated in hole around its axis.Then 54 sets of left retaining ring are lived on female bar 53 against right corner steel 16 with lock.Right retaining ring 55 It covers and is then lived against left comer steel 51 with lock on female bar 53.The left comer steel 51 of the left even right corner steel 16 of frame and right even frame passes through a left side Retaining ring 54 and right retaining ring 55 limit the axial movement of female bar 53.Female bar 53 is vertical with the left and right even left and right angle steel of frame to connect frame with left and right Front and back angle steel it is parallel.The nut at female 53 both ends of bar is integrally formed by female bar 53 to be installed on left even frame 12 and right even frame 18 i.e. It is mounted on sofa body 46.Female bar 53 can be formed in the both ends of steel pipe round steel vehicle system of burn-oning.

Left screw 56 and female 53 left end nut of bar cooperate non-threaded its of its left part vertically to weld one section of steel pipe 57 above. Right screw 58 and female 53 right end nut of bar cooperate non-threaded its of its right part vertically to weld one section of steel pipe 59 above.Left screw 56 It is identical but oppositely oriented with the form of thread of right screw 58, major diameter, line number, screw pitch, lead.The width of support member 5 can just be caught in In left even 12 front and back angle steel of frame.The width of support member 7 can just be caught in right even 18 front and back angle steel of frame.Before axis 31 passes through left even frame 12 The hole of 13 left end of angle steel passes through rear 14 left end corresponding aperture of angle steel across the hole of the short 5 liang of side rod upper ends of support member of left leg support, and then two End lock, which is lived, just gets up 5 upper end of short support member of left leg support and left even frame 12 rotation connection, i.e., rotates and connect with sofa body 46 It picks up and.Axis 33 passes through 13 guide groove 17 of angle steel before left even frame, hole, steel pipe 57 across the long 6 one side rod upper end of support member of left leg support Then hole, another side rod upper end hole of support member 6 and the corresponding guide groove of rear angle steel 14 are inserted into steel pipe 57 and 33 hole of axis with pin and limit axis 33 are axially moved, and 6 upper end of support member is thus constrained in a certain range that can be horizontally slipped in left even 12 front and back angle steel guide groove of frame It is interior, that is, it constrains in a certain range that can be horizontally slipped below sofa body, and also rotated and connected with left screw 56 by steel pipe 57 It picks up and.Equally, axis 36 passes through the hole of 19 right end of angle steel before right even frame 18, across 7 liang of side rod upper ends of the short support member of right leg support Hole passes through rear 50 right end corresponding aperture of angle steel, and then both ends lock is lived 7 upper end of short support member of right leg support and right even 18 turns of frame just It is dynamic to connect, i.e., get up with the rotation connection of sofa body 46.Axis 38 passes through 19 guide groove 20 of angle steel before right even frame, passes through right leg The hole of the long 8 one side rod upper end of support member of frame, 59 hole of steel pipe, another side rod upper end hole of support member 8, the corresponding guide groove of rear angle steel 50, then Limitation axis 38 in steel pipe 59 and 38 hole of axis is inserted into pin to be axially moved, and 8 upper end of support member is thus constrained in into right 18 front and back of even frame In a certain range that can be horizontally slipped in angle steel guide groove, that is, constrain in a certain range that can be horizontally slipped below sofa body, and And also got up with the rotation connection of right screw 58 by steel pipe 59.

Operating mechanism 4 is sprocket wheel chain operating mechanism 4, it includes sprocket wheel 60 and chain 61.The casing of 60 central part of sprocket wheel Sprocket wheel 60 is just mounted at 53 middle part of female bar with pin 63 under lock and key and can say and be mounted on nut on female bar 53 by 62 sets.Chain 61 on sprocket wheel 60, pulls chain 61 that can make sprocket wheel 60 and female rotation of bar 53 and move left screw 56 and right screw 58 or so It is dynamic.

Left even 12 left part of frame is also welded with the angle steel 64 of a vertical front and back angle steel.The centre of angle steel 64 towards top is provided with notch The left part of left screw 56 is just put into this notch, when guaranteeing that left screw 56 moves left and right its axis be overlapped with female 53 axis of bar and Guarantee to synchronize before and after 6 upper end of support member when moving left and right.Equally, right even 18 right part of frame is also welded with the angle of a vertical front and back angle steel Steel 65.The right part that the centre of angle steel 65 towards top is provided with notch right screw 58 is just put into this notch, to guarantee that right screw 58 is left Its axis and female 53 axis of bar are overlapped and guarantee synchronous when moving left and right before and after 8 upper end of support member when moving right.

Keep leg support two support member angle in left and right identical with the cooperation of 53 liang of end nuts of female bar by adjusting left and right screw rod when assembly, Lifting sofa 45 is contacted to earth by four plastic tips of the long support member side rod in left and right leg support lower end can steadily stand on ground.Due to Left and right screw rod is rotatablely connected with support member 6,8 upper ends respectively, they not can rotate and can be axially moved and drive when female bar 53 rotates Support member 6,8 upper ends horizontally slip.Since left and right screw lead is identical oppositely oriented, female bar 53 passes through left and right to a direction rotation When screw rod drives the long support member 6 of left and right leg support, 8 upper ends mobile and synchronizes the angle of two support member of left and right leg support to become larger, lifting is husky Hair 45 will reduce.Certainly leg support two support member angle in left and right will be made to synchronize when mother's bar 53 is rotated to other direction to become smaller, go up and down Sofa 45 just increases.Usual chain 61 is just placed on lifting sofa 45 when in the following, needing to adjust the height of lifting sofa 45 and takes out Chain 61 draws a turn female bar 53 to achieve that.

Changing the sofa body 46 of this example into desk body just becomes the lifting desk for having this structure.The sofa body 46 of this example is changed into Bed body just becomes the Height-adjustable for having this structure.

The left leg support of the present embodiment 2 and another support member upper end of right leg support are all rotatablely connected with a screw rod respectively, sofa Both ends are equipped on body has female bar 53 of nut thread matched.If allowing in another support of the left leg support of this example and right leg support End one and screw rod rotation connection one and nut are rotatablely connected, such as the holding of 6 upper end of another support member and left screw of left leg support 56 rotation connections allow 8 upper end of another support member of right leg support and a nut to be rotatablely connected, female 53 left part of bar are allowed to keep nut spiral shell Female 53 right part of bar is made into screw rod and cooperated with them by line, and the lifting sofa being made into this way is more complicated but can use, Wo Menye Such structure can be done lifting desk or Height-adjustable.Say that everybody is just clear herein, we just do not illustrate specially or so The lifting desk or lifting sofa or liter of another support member upper end one of leg support and nut rotation connection one and screw rod rotation connection Bed drops.

Embodiment 3.

Embodiment 3 is Height-adjustable.

A kind of Height-adjustable of embodiment 3 is as shown in Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14.A kind of Height-adjustable 66, this Height-adjustable 66 includes bed body 67 and flexible leg device, and flexible leg device includes left leg support, right leg support and operating mechanism, left leg support and Right leg support is all mainly rotatablely connected at a certain distance from respectively from upper end by two support members, two support members 5,6 of left leg support Upper end is placed on 67 left part of bed body in the following, the upper end of two support members 7,8 of right leg support is placed on 67 right part of bed body in the following, left leg support and the right side One support member 5 of leg support, 7 upper ends are all rotatablely connected another support member 6 with bed body 67,8 upper ends all constrain in the energy below of bed body 67 It is rotatablely connected in a certain range for horizontally slipping and with nut 68, screw rod 69 and left leg support and right leg support is installed in bed body 67 The nut 68 that another support member 6,8 upper ends are rotatablely connected matches, and operating mechanism is installed on the screw rod 69 being mounted in bed body 67 Upper to match with screw rod 69, the support of contacting to earth of left leg support and right leg support lower end can make Height-adjustable stand on ground.

The left leg support midpoint long in the lower end of short support member 5 and long support member 6 by one short support member 5 and one long support member 6 It is rotatablely connected.Right leg support is by one short support member 7 and one long support member 8 in the lower end of short support member 7 and long support member 8 are long It is rotatablely connected at point.The length of the left long support member 6 of leg support is two times of short 5 length of support member.The length of the right long support member 8 of leg support is Two times of short 7 length of support member.The length of the left long support member 6 of leg support is equal to the length of the long support member 8 of right leg support.The left short support member 5 of leg support Length is equal to the length of the short support member 7 of right leg support.The upper end of the short support member 5,7 of left leg support and right leg support is all rotatablely connected with bed body. The upper end of the long support member 6,8 of left leg support and right leg support all constrains in a certain range that bed body 67 can horizontally slip below and and spiral shell Mother 68 is rotatablely connected.The support member 5,6,7,8 of left leg support and right leg support is all the wide support member of square bar.

Bed body 67 is assembled by square frame 70, plank 71 and backrest 72.Mattress, cotton-padded mattress, sheet etc. are spread on plank 71 just It can sleep.Square frame 70 is welded downwards by the unequal angle short side of the four sections of same models long side that faces upward.Preceding 73 He of angle steel 74 short side of angle steel is outwardly afterwards.Left comer steel 75 and 76 short side of right corner steel are inwardly.In same level position in the downward long side of preceding angle steel 73 Set that left part has made guide groove 17 and circular hole right part has also done guide groove 20 and circular hole, rear 74 left part of angle steel and right part corresponding position have also been done Identical guide groove and circular hole.

As shown in Figure 10, Figure 11, support member 5 is welded by the steel rod elements group that three sections of cross sections are hollow rectangle.Left side bar 21 Bar 22 cross section in the right is identical, their leptoprosopy are towards front and back width towards left and right in Figure 10.25 cross section of cross bar is larger, in Figure 10 it It is wide forward after leptoprosopy to upper and lower.Left and right side rod 21,22 is parallel to each other and vertical with cross bar 25.Support member 5 is all symmetrical all around. Left side bar 21 and the wide face centerline in 22 upper end of the right bar are provided with the same circular hole of same axis, and the wide face centerline in lower end is also opened There is the same circular hole of same axis.Axially bored line is exactly the upper end reference line of support member 5 on the side rod of left and right, and lower axially bored line is exactly support member 5 Lower end reference line.Left and right side rod upper and lower side reference line is parallel and vertical with left and right side rod.Left and right side rod seems and upper and lower end group Directrix constitutes rectangle sample therefore support member 5 is the wide support member of square bar.The length of support member 5 is exactly the distance of its upper and lower side reference line.

Support member 6 is as shown in Figure 12 and Figure 13.Support member 6 is welded by four sections of steel rod elements groups that same model cross section is hollow rectangle It forms.Left side bar 23 and the right bar 24 are isometric and be parallel to each other, their leptoprosopy is towards front and back width towards left and right in Figure 12.Cross tube 26 and sheer pole 27 it is isometric and be parallel to each other and vertical with left and right side rod, in Figure 12 their leptoprosopy towards it is upper and lower it is wide forward after. The wide face centerline in left and right side rod upper end is drilled with the circular hole of same axis, this two axially bored line is exactly the upper end reference line of support member 6.It is left The right bar lower end be all plugged with lower end be arc-shaped plastic tip its it is upright when minimum point at line be exactly support member 6 lower end Reference line.The upper and lower side reference line of support member 6 is parallel to each other.Distance between the side rod upper and lower side reference line of left and right is exactly the length of support member 6 Degree.Left and right side rod from upper end axially bored line to the midpoint of lower end minimum point be drilled with same axis circular hole i.e. support member 6 it is long The hole at midpoint, this circular hole is with the lower stomidium of support member 5 with big.Left side bar and the right bar it is vertical with upper and lower reference line seem and they constitute Rectangle sample is so support member 6 is the wide support member of square bar.As the left side Figure 12 bar 23 and 24 forward, central part of the right bar have same square V notch v 77,78.

5 the right bar lower end of support member is inserted into 6 the right bar rectangular notch 78 of support member, and 5 left side bar lower end of support member just can also insert Enter and pass through hole at 6 midpoint hole of support member and 5 lower end of support member in the rectangular notch 77 of 6 left side bar of support member, then with axis 30, then axis 30 both ends are inserted into 30 hole of axis with pin (not drawing in figure) and are lockked, just from the lower end of support member 5 and midpoint that support member 6 is grown is by support member 5 Get up to become left leg support with the rotation connection of support member 6.Support member 7 is identical as support member 5, and support member 8 is identical as support member 6, with axis 39 with same The assembly method of sample, hole and the midpoint hole of the length of support member 8 get up support member 7 and the rotation connection of support member 8 just at 7 lower end of support member Form right leg support identical with left leg support.

Such as Figure 14, nut 68 is welded by long steel pipe 79, Zuo Gangguan 80 and 81 groups of right steel pipe.Left steel pipe 80 and right steel pipe 81 It is vertical with long steel pipe 79 below long steel pipe 79.There is the internal screw thread of nut 68 in long 79 right part of steel pipe, it is in steel pipe one It burn-ons made of round steel vehicle system at end.Interior left comer steel 82 and interior middle angle steel 83 are vertically welded on the preceding angle steel 73 and relief angle of square frame 70 On steel 74.The centre of interior left comer steel 82 and interior middle angle steel 83 towards top is provided with notch, and the long steel pipe 79 of nut 68 is just caught in this and lacks In mouthful, long steel pipe 79 is made to be parallel to left and right angle steel of the front and back angle steel perpendicular to square frame 70 of square frame 70.70 right part front-and-back angle of square frame An interior right corner steel 84 is also vertically welded on steel, the centre of interior right corner steel 84 towards top is drilled with circular hole, and screw rod 69 passes through This circular hole is threadedly engaged with 68 right end of nut.69 right part 85 of screw rod cannot pass through interior right corner steel 84 that the diameter of thread is not larger Intermediate hole and stick on interior 84 the right of right corner steel.86 sets of retaining ring on screw rod 69 by interior 84 left side of right corner steel with lock live with Limitation screw rod 69 is axial to move to right.

The width of support member 6 and support member 8 can just be caught between 70 front and back angle steel of square frame.Axis 31 passes through angle steel 73 before square frame 70 The hole of left part passes through left 5 left and right sides upper end hole of leg support support member, passes through the corresponding hole of rear 74 left part of angle steel, is then inserted into axis with pin 5 upper end of support member of left leg support under lock and key, is just rotatably connected on 70 left part of square frame i.e. bed body left part by 31 both ends of the hole.Axis 33 passes through square The guide groove 17 of 73 left part of angle steel before frame 70 is passed through across the hole of 6 the right bar upper end of support member across the hole of the left steel pipe 80 of nut 68 The hole of 6 left side bar upper end of support member passes through the corresponding guide groove of angle steel after square frame 70, is then inserted into left steel pipe 80 with pin (not drawing in figure) It is axially moved with axis 33 is limited in 33 hole of axis under lock and key, left 6 upper end of leg support support member is just constrained in into 70 front and back angle steel left part of square frame In a certain range that can be horizontally slipped in guide groove, that is, constrain in a certain range that can be horizontally slipped below 67 left part of bed body, and And just 6 upper end of support member and the rotation connection of nut 68 are got up by left steel pipe 80.It is right by 70 front and back angle steel of square frame with axis 36 Right leg support support member 7 is rotatably connected on 70 right part of square frame i.e. by portion hole and 7 upper end hole of support member with the same assembly method of left leg support It is rotatably connected on 67 right part of bed body.Passed through on angle steel guide groove 20 before square frame 70 and corresponding rear angle steel guide groove and support member 8 with axis 38 It is right that right 8 upper end of leg support support member with the same assembly method of left leg support is constrained in 70 front and back angle steel of square frame by stomidium and 81 hole of right steel pipe In a certain range that can be horizontally slipped in portion's guide groove, that is, constrain in a certain range that can be horizontally slipped below 67 right part of bed body, And just 8 upper end of support member and the rotation connection of nut 68 are got up by right steel pipe 81.Here illustrate, for clarity in Figure 14 In be not drawn into the cross bar 25 of left leg support support member 5 and the cross bar 26,27 of support member 6, be also not drawn into the cross of right leg support support member 7 and support member 8 Bar.

Axial square hole is provided in 69 right part 85 of screw rod, rocking handle (does not draw) front end square shaft in figure passes through 70 right corner steel of square frame Top hole among 76, insertion is installed in 69 right part of screw rod, 85 square hole to be matched with screw rod 69.The screw thread of screw rod 69 is right Single line trapezoidal thread is revolved, nut 68 will move to right and drive support member by axis 33 and axis 38 when the rocking handle rocking-turn clockwise in terms of the right side 6,8 upper ends move to right and synchronize the angle of two support member of left and right leg support and become smaller and increase Height-adjustable 66.It is leaned on when axis 33 moves to right front end When 73 guide groove of angle steel, 17 right end before square frame, rear end lean against the right end of the corresponding guide groove of rear angle steel 74 just the front end of axis 38 also against Preceding 73 guide groove of angle steel, the 20 right end rear end of square frame leans against the right end of the corresponding guide groove of rear angle steel 74, and Height-adjustable 66 is raised to highest at this time.From The right side see shake rocking handle when rotating counterclockwise nut 68 will move to left and drive that support member 6,8 upper ends move to left makes by axis 33 and axis 38 The angle of two support member of left and right leg support, which synchronizes, to become larger and makes the reduction of Height-adjustable 66.It is led when axis 33 moves to left angle steel 73 before front end leans against square frame The just front end of axis 38 is also against 73 guide groove of angle steel before square frame when 17 left end of slot, rear end lean against the left end of the corresponding guide groove of rear angle steel 74 20 left ends rear end lean against the left end of the corresponding guide groove of rear angle steel 74, and Height-adjustable 66 is preferably minimized at this time.

4 points of plastic tip of the left and right side rod lower end branch of contacting to earth that usual Height-adjustable 66 passes through left and right leg support lower end, that is, support member 6,8 Support steadily stands on ground.Rise bed since the self-locking screw rod 69 of screw rod 69 and nut 68 will not rotate automatically usually Drop.Rocking handle rocking-turn screw rod 69 is loaded onto when needing can be such that Height-adjustable 66 goes up and down.The support member length relation as described in the leg support of left and right and Leg support lower end is not slided over the ground substantially and bed can be made vertically steadily to go up and down when the matching relationship Height-adjustable 66 is gone up and down.

Changing the bed body of this example into desk body just becomes the lifting desk for having this structure to stretch leg device.The bed body of this example is changed Just become the lifting sofa for thering is this structure to stretch leg device at sofa body.

Embodiment 3 is the case where another support member 6 of left and right leg support, 8 upper ends are all rotatablely connected with a nut, we will be real It applies nut 68 in example 3 and is made into screw rod and the nut inner thread of long 79 right part of steel pipe of nut 68 is converted into screw rod external screw thread, then It changes screw rod 69 into internal thread nut and also makes the square hole of inserting rocking handle in its right part, here it is left and right leg supports The case where another support member upper end is all rotatablely connected with a screw rod, the Height-adjustable made so is also advantageously used, and can also be made The lifting desk or lifting sofa for having this spline structure come.We illustrate herein just specially illustrate left and right leg support another support member Upper end all with the lifting desk of screw rod rotation connection situation or lifting sofa or Height-adjustable.

We do not use motor-operating mechanism specifically to the various embodiments described above, but the various embodiments described above are all changed to electricity again Pneumatic operating mechanism, although the figure for not drawing motor-operating mechanism comes, those skilled in the art, which can be capable of, to come.

We the upper end of lifting desk or lifting sofa or two support member of left and right leg support of Height-adjustable hang up extension spring or Person, which is set with torque spring on the axis that two support members are rotatablely connected and is respectively acting in a support member by the both ends of this spring, allows this torsion The elastic force of spring always attempts to reduce two support member angle of leg support, can thus make the liter of lifting desk or lifting sofa or Height-adjustable Range of decrease degree is bigger, few laborious when rising.

Hospital bed, examination couch now within the hospital cannot all go up and down, just can be well solved this problem using the present invention program.

Although enumerating 3 but this and more of the present invention above.

Claims

1. a kind of lifting desk, the lifting desk includes desk body and flexible leg device, it is characterized in that: the flexible leg device packet Left leg support, right leg support and operating mechanism are included, the left leg support and right leg support are all mainly by two support members respectively from one spacing of upper end It is rotatablely connected from place, the upper end of two support members of the left leg support is placed on the desk body left part in the following, the right leg The upper end of two support members of frame is placed on the desk body right part in the following, a support member of the left leg support and right leg support Upper end that upper end is all rotatablely connected another support member with the desk body all constrains in and can horizontally slip below the desk body Be rotatablely connected in a certain range and with nut or screw rod, be equipped in the desk body screw rod or/and nut and the left leg support and The nut or/and screw rod of another support member upper end rotation connection of right leg support match, and the operating mechanism is installed on Match on the screw rod or/and nut in the desk body with the screw rod or/and nut being mounted in the desk body It closes or is mounted on and matched by driving member with the screw rod or/and nut being mounted in the desk body in the desk body, institute It states left leg support and the support of contacting to earth of right leg support lower end can make the lifting desk stand on ground.

2. lifting desk according to claim 1, it is characterized in that: the left leg support and right leg support are all respectively mainly by one Long support member and the midpoint that a short support member is at the lower end of the short support member and the long support member is long are rotatablely connected, described The length of long support member is two times of the short support member length, the equal length of the long support member of the left leg support and right leg support, The upper end of the short support member of the equal length of the short support member of the left leg support and right leg support, the left leg support and right leg support It is all rotatablely connected with the desk body, the upper end of the long support member of the left leg support and right leg support all constrains in below the desk body It is rotatablely connected in a certain range that can be horizontally slipped and with nut or screw rod.

3. lifting desk according to claim 1 or 2, it is characterized in that: the support member is all the wide support member of square bar.

4. a kind of lifting sofa, the lifting sofa includes sofa body and flexible leg device, it is characterized in that: the flexible leg device Including left leg support, right leg support and operating mechanism, the left leg support and right leg support are all mainly by two support members respectively certain from upper end It is rotatablely connected at distance, the upper end of two support members of the left leg support is placed on the sofa body left part in the following, described The upper end of two support members of right leg support is placed on the sofa body right part in the following, described in one of the left leg support and right leg support The upper end that the upper end of support member is all rotatablely connected another support member with the sofa body all constrains in energy below the sofa body Be rotatablely connected in a certain range for horizontally slipping and with nut or screw rod, be equipped on the sofa body screw rod or/and nut with The nut or/and screw rod of another described support member upper end of the left leg support and right leg support rotation connection match, the operation Mechanism is installed on the screw rod on the screw rod or/and nut being mounted on the husky body and being mounted on the sofa body Or/and nut matches or is mounted on the sofa body through driving member and the screw rod being mounted on the sofa body Or/and nut matches, the support of contacting to earth of the left leg support and right leg support lower end can make the lifting sofa stand on ground.

5. lifting sofa according to claim 4, it is characterized in that: the left leg support and right leg support are all respectively mainly by one Long support member and the midpoint that a short support member is at the lower end of the short support member and the long support member is long are rotatablely connected, described The length of long support member is two times of the short support member length, the equal length of the long support member of the left leg support and right leg support, The upper end of the short support member of the equal length of the short support member of the left leg support and right leg support, the left leg support and right leg support It is all rotatablely connected with the sofa body, the upper end of the long support member of the left leg support and right leg support all constrains in the sofa body It is rotatablely connected in a certain range that can be horizontally slipped below and with nut or screw rod.

6. lifting sofa according to claim 4 or 5, it is characterized in that: the support member is all the wide support member of square bar.

7. a kind of Height-adjustable, the Height-adjustable includes bed body and flexible leg device, it is characterized in that: the flexible leg device includes a left side Leg support, right leg support and operating mechanism, the left leg support and right leg support are all mainly by two support members at a certain distance from respectively from upper end It is rotatablely connected, the upper end of two support members of the left leg support is placed on the bed body left part in the following, the right leg support The upper end of two support members be placed on the bed body right part in the following, a support member of the left leg support and right leg support upper end The upper end that another support member is all rotatablely connected with the bed body all constrain in can horizontally slip below the bed body it is certain It is rotatablely connected in range and with nut or screw rod, screw rod or/and nut and the left leg support and right leg is installed in the bed body The nut or/and screw rod of another described support member upper end rotation connection of frame match, and the operating mechanism, which is installed on, to be mounted on Match on the screw rod or/and nut in the bed body with the screw rod or/and nut being mounted in the bed body or It is mounted in the bed body and is matched by driving member with the screw rod or/and nut being mounted in the bed body, the left side The support of contacting to earth of leg support and right leg support lower end can make the Height-adjustable stand on ground.

8. Height-adjustable according to claim 7, it is characterized in that: the left leg support and right leg support are all mainly long by one respectively Support member and the midpoint that a short support member is at the lower end of the short support member and the long support member is long are rotatablely connected, the length The length of support member is two times of the short support member length, the equal length of the long support member of the left leg support and right leg support, institute State the equal length of the short support member of left leg support and right leg support, the upper end of the short support member of the left leg support and right leg support is all It is rotatablely connected with the bed body, the upper end of the long support member of the left leg support and right leg support all constrains in energy below the bed body It is rotatablely connected in a certain range to horizontally slip and with nut or screw rod.

9. Height-adjustable according to claim 7 or 8, it is characterized in that: the support member is all the wide support member of square bar.