CN2900461Y

CN2900461Y - Electric lifting system

Info

Publication number: CN2900461Y
Application number: CNU200620003695XU
Authority: CN
Inventors: 安德森约瑟夫M.
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-27
Filing date: 2006-02-14
Publication date: 2007-05-16
Anticipated expiration: 2016-02-14
Also published as: WO2007014331A2; WO2007014331A3; CN1903697A

Abstract

A power bed-lifting system raises a bed on its frame to a desired height so the bed can be made by a worker standing upright. The system uses an electric motor or other drive system to create the motion necessary to drive threaded-rod and scissors assemblies to raise or lower the bed. The scissors assembly includes X shaped legs, joined at a center pivot point and attached to a frame of the system, and track rollers locked in a channel frame. The threaded actuating rod or ballscrew acting on the scissor assemblies causes the system to raise or lower the bed. The motor is made operable to raise and lower the bed through switches, pushbuttons, or other types of controllers so the height may be custom adjusted to the worker. Adjustable extension rails make the lifting unit adaptable to any size bed frame from a twin at 38'' x 75'' to an Eastern Icing, measuring 76'' x 80''. Other types of lifting assemblies are described.

Description

A kind of electric lifting device

Affiliated technical field

The utility model relates to a kind of electric lifting device, belongs to mechanical field.

Background technology

The utility model relates to the height that bed can be risen to any setting, and a people can easily be put in order bed when standing erectly fully.

In all workpeoples' repeating motion, the ratio that the house trimmer is injured is the highest.One of their basic mission is exactly to make the bed.For every bed, the house trimmer will squat down and bend over 24 times usually with moving bed list, pillow cover and the coverlet of coming up, and more changes the sheet, pillow and lid quilt.Bend over down heavy weight lid is pulled up and bend over down mat mentioned and below the sheet plug arrived, second bore nervous pulling force all to make the back of the body.Chair or bench board near lid quilt and pillow transported to, and in case will cover quilt again after more changing the sheet and pillow is sent back to, these all need the repetition anxiety at back.Such duplication of labour causes accumulate when finishing on weekdays nervous and tired, and when finishing on weekdays, the house trimmer has cleared up 10 to 15 rooms usually, and each room has two beds usually.In the long time, the work of these repetitions causes the pain of chronicity and serious damage.By bed being risen to the height that is fit to operation, the house trimmer can avoid making the bending over and squat down of repeatability of muscle of back anxiety.Provide telescopic lid supported device by afterbody, can easily optionally tear and reset lid quilt, pillow and mat at bed.Each device makes the motion that causes damage be reduced to minimum and has reduced to adjust the labour intensity and the time of bed.

Have in the North America to surpass 700 ten thousand hotel berth, have in Europe to surpass 800 ten thousand hotel berth.Numerous house trimmers can avoid carrying on the back the anxiety of bottom and unnecessary fatigue by bed being risen to the height that is fit to operation.

In recent years, the damage and the insurance premium of workman's back of the body bottom show a marked increase.The insurance premium in annual each room from 248 dollars in 2000 rise to 2005 above 600 dollars.Lodging industry is being sought to reduce such expense and is being made their employee long-lived and healthy more.

Spend a large amount of money to be used for the back insurance.In 2004, the damage that the workman carries on the back the bottom accounted for 35% of the 15%-20% of compensation damage and workmen's compensation's expense.The damage of back of the body bottom accounts for all and causes 30% of the injury of being temporarily released from one's regular work.The economic impact of estimation shocks the people, comprises that capacity rating, related medical expense and the work of loss injures the labour power forfeiture that causes.Nearly 8500 dollars of the average costs that the workman's relevant with back of the body bottom compensation requires, such expense are 2 times that average damage compensation requires expense.

In the U.S., the expense appreciable amt of annual payment is between 500,000,000,000,000 dollars to 1,000 trillion dollars.Most of these expenses requires directly relevant with workman's compensation.

In the U.S., back injury is the most significant and one of the highest muscle skeleton disease relevant with work of cost.In every year, the pain of back of the body bottom is to 1,000, and 000 U.S. workman has negative effect and causes the loss of more workday than other muscle skeleton disease.

1998, surpass 440,000 people because back injury had at least do not work in 1 day, account for this year owing to non-fatal damage or disease 1/4th of the total number of persons of being temporarily released from one's regular work.The workman that the overwhelming majority has back injury has returned work very soon, still, does not have the people who returns work very soon to take relevant expense and healthy major part of taking care of on a small quantity.In every year, the people who has a back injury is 6 working days of average loss altogether.Yet in 2004, nearly 20% people who has back injury lost more than 31 working days.

What all recovery required 1/4th relates to back injury, and the economical burden of industry member is reached tens dollars.This numeral does not comprise the consideration to the nocuous influence of injured people's pain, misery and quality of life.

It has been recognized that for a long time for comfortable, practical and reduce possible damage, the workpeople wishes the object of work is adjusted on the position of the most suitable their work.For this reason, industrial, the hydraulic pressure lift bench board is the instrument of standard.Flat (Pallet) Jack is used for the heavy weight thing is placed into the position that can avoid back injury for a long time.Long-term bend over to cause unnecessary tired and uncomfortable, thereby the benefit of the safety of making and professional satisfaction degree aspect reduces.The people who is in standing state with custom out of need in work can run into this risk.Bend over for a long time,, perhaps increase the weight of the problem that has existed even slight bending over if do not loosen, can cause the chronic back problem.

Promulgation on October 14th, 1969 turns round and look at the graceful US Patent of moral 3472183 to the Robert and has related to this problem, and a kind of bench board that can vertically adjust is disclosed, wherein, allow bench board to adjust with little increment by the motor driven internal helicoid Jack cylinder of switch control.

On November 11st, 1980 promulgation give like blue in the US Patent 4232901 of M. Ha Lingdun etc. a kind of adjustable Great Wall Software chair is disclosed, one of them is in switch at a distance and connects power driven system and be located at a pair of hinge on two screw rods with rotation.By being fixed to two loop bars on the lazy-tongs mechanism, this Great Wall Software's chair can be adjusted to comfortable position in vertical direction.

But the US Patent 3982718 of looking into ability and political integrity P. Fu Kenluosi to the lining of on September 28th, 1976 promulgation discloses a kind of operation of chair, has used a pair of lazy-tongs mechanism and the screw rod adjacent with the substrate of this device, can be adjusted in vertical direction.

On March 13rd, 1962 promulgation give luxuriant and rich with fragrance pros and cons J. Otto you etc. U.S. Patent Publication a kind of read out instrument that movably, can cave in.This device has a substrate that wheel is arranged, and several telescopic sections, the piston that can be stretched out from cylinder promote or descend, and cylinder is located on the control stalk of a pair of pivotally.Each side at this device has a pair of X frame stability device, and the demonstration that rotary table makes things convenient for automobile or analogue is equipped with at the top.

On October 24th, 1972, promulgation disclosed a kind of hookup mechanism of cultrating to the US Patent 3700070 that John adds Lapie's gold, wherein, when this hookup mechanism was in the position of caving in fully, the point of pivot had overcome the problem that requires high tripping force on the active line of the hydraulic cylinder of horizontal arrangement.

Promulgation on August 22nd, 1989 all discloses the shear-shaped mechanism that is used to promote bench board or high-mobility, multipurpose, wheeled vehicle erecting bed respectively for the US Patent 4934647 of James's literary composition S. Margaret Edwards to the US Patent 4858482 and the promulgation on June 19 nineteen ninety of Airy gram Knut Knudsen.

Above-mentioned invention and patent individually or made up, all are not disclosed in the open and content that requires in the utility model.

Summary of the invention

In order to overcome the deficiency of prior art structure, the utility model provides a kind of electric lifting device.

The technical scheme that its technical matters that solves the utility model adopts is:

Comprise framework, electric controller, motor, retarder, the assembly of cultrating, screw rod and travelling nut.When this device starts, the screw rod rotation, each assembly supporting leg of cultrating is compressed to the position of closing, and need not bend or bend over just can put the height of tidying up in order to bed thereby bed is risen to the workman from ground.

Framework is connected and composed by support, there is chute the inboard of 2 relative supports, the assembly of cultrating has 4 supports, it is the rotating cross frame in center that the middle part of per 2 supports has axle to connect to form with the axle, one end of every support of cross frame is a leg, leg has roller to connect, the other end of every support of cross frame be connected on the framework and chute in, between the 2 secondary cross frames connection support is arranged, motor is connected the back and is installed in one and connects on the support with retarder, the output shaft connecting screw rod of retarder, and screw rod connects travelling nut, travelling nut is fixed on the connection support of another cross frame, and the other end of screw rod is connected on the support of framework.

The transmission system that screw rod is made up of motor and connected retarder drives, and retarder is the deceleration gear.When motor failure can not rotating screw bolt, can fall with manual method by being located at handwheel or the electric drill on the free input shaft of deceleration gear, thrust unit drops on the position that motor can be replaced.

The be rotationally connected screw rod of travelling nut of drive-system is handled the assembly of cultrating to promote and to reduce bedstead.This motion is to control by the operation of electric controller, and electric controller can be one pair of foot-operated switch, 1 detachable key switch or infrared controller.The operation of electric controller control setup, bed stable, the in check motion between the position that promotes and reduced of leaving.Axle bush at the assembly point of crossing place that cultrates has reduced frictional loss and has made motion become level and smooth.

A main purpose of the present utility model provides the bont of adjustable bed height, and this bont comprises a power hoisting device, and it is starting and operating and stretch and bounce back by its inner structure and mechanical part.

Another purpose of the present utility model is the afterbody at the bont framework, has a stretchable U-shaped guide rail to connect, and covers quilt and pillow with its placement when bed is organized.

Another purpose of the present utility model is an input end at retarder, and the attachment point of artificial handwheel or electric drill is provided, and under the situation of motor failure, bed can lean on electric drill manual or that be provided with to fall.

Another purpose of the present utility model provides an electro-motor controller, and this controller is handled the rising or the reduction of bont by a pair of foot-operated switch, 1 detachable key switch or infrared controller.

Another purpose of the present utility model is that improved parts and structure are provided in device, to realize above-described cheap, safe, reliable and abundant effective aim.

Further read following explanation and accompanying drawing of the present utility model, it is more obvious that these and other objects of the present utility model can become.

This device of the beneficial effects of the utility model can rise to bedstead the height of any setting, and a people can be put in order bed when standing erectly fully.This device no the time attached on the existing bedstead, and be suspended on the bed that is positioned at floor top below.During use, this device promotes bed and be fixed on the suitable height so that the arrangement of bed reduces bed after this process is finished.This device uses electro-motor to come the propelling energy automatic lift and reduces the screw rod of bed and the assembly of cultrating.This assembly of cultrating is included in center point of crossing binding and is located at the cover of two on framework X shape supporting leg and is locked in the interior slider roller of framework chute.Cultrate assembly by the starting screw drive that promotes or reduce this device.By detachable key switch or Infrared remote controller, motor is used to handle the liter of bed and fall, and is used for the final hoisting depth that is fit to each workman and can puts bed in order.Adjustable extension track makes bont can adapt to the bedstead of virtually any size, from the oversized bed of double bed to 1930.4 * 2032 centimetre (76 * 80 inches) of 965.2 * 1905 centimetres (38 * 75 inches).

Description of drawings

Below in conjunction with drawings and Examples invention is further specified, to those skilled in the art, can more know the novel characteristics and the advantage of foregoing invention.The parts of same reference marker TYP.Wherein

Fig. 1 is the birds-eye view of preferred embodiment that is in the electric lifting device of underlying/advanced position.

Fig. 2 is in the perspective view of the electric lifting device of seated position down.

Fig. 3 is the enlarged diagram of electric lifting device drive-system shown in Figure 2.

Fig. 4 is in the end view of the present utility model of seated position down.

Fig. 5 is in side schematic view of the present utility model seated position, when guide rail does not stretch down.

Fig. 6 is in the down face upwarding view of the present utility model of seated position: show guide rail when not stretching, with the standard bedstead of headpiece and be located mattress and bed drawer on it.

Fig. 7 is the electric lifting device of seated position under being in and the end view of integral bed.

Fig. 8 is in the of the present utility model transparent transparent view of seated position down: show the guide rail that has bedstead and not stretching when.

Fig. 9 be in following seated position, be attached to the of the present utility model transparent scheme drawing below the bed.

Figure 10 is in bed to be raised side schematic view of the present utility model when breaking away from ground: the guide rail when showing supported bedstead and stretching.

The specific embodiment

As shown in Figure 1, preferred device described herein is not exhaustive, neither the utility model is spacing to disclosed accurate form.It is selected for the application of explaining principle of the present utility model and method in actual use, so that other those skilled in the relevant art can implement the utility model.

At length, with reference to accompanying drawing, especially accompanying drawing 1, described the preferred embodiment of the electric lifting device that is in advanced position.This electric lifting device comprises framework (1), the assembly of cultrating (2) of motor driven, the assembly of cultrating (3) of screw drive, width extensible arm (4) adheres to hook (5), and the assembly of cultrating connects pivot pin (6), AC motor (7), worm gear (8), retarder (9), bearing (10), axle drive shaft (11), flexible shaft adaptor union (12), travelling nut (13), screw rod (14), motor controller (15), stop nut (hand drive under the situation of motor failure) (16), the guide rail (17) of lid quilt/pillow.When the utility model being assembled into existing bed and headpiece, controller (18) is contained on the headpiece to be controlled at the system that Fig. 7 shows, controller (18) can be infrared interface/button switch far away, the axle drive shaft (11) of flexible shaft adaptor union (12) connection reducer (9) and screw rod (14), the end of support of assembly (2), (3) of cultrating is connected in framework by connecting pivot pin (6), and another support of the assembly of cultrating (2), (3) has slider roller to be connected in the framework chute.

This electric lifting device is draped on the existing under the bed metal bed frame.Four width extensible arms (4) are inserted in the face end support of framework (1), can adjust to be connected with four the width extensible arms (4) that adhere to hook (5), to accommodate the normal width of all standards, large size and oversized bed.

Can be just or the motor (7) of counter-rotating be connected with the motor controller (15) that the standard wall-board switch joins, as operator during to controller (18) input instruction, motor controller (15) start-up system and control turning to and rotating speed of motor (7).When clockwise rotating, electric lifting device stretches downwards from its position of closing with controller (18) operated motor (7), up to arriving at ground, continues to promote bedstead and bed then to default position.Figure 10 has described the electric lifting device of position of " rise " at this.When making the motor left-hand revolution, bed is lowered, and up to just in time being placed on the existing metal bed frame, and electric lifting device continues retraction, breaks away from ground up to this device, and bed is moved back on the Caster of existing bedstead.

Those skilled in the art can realize above-mentioned switch and circuit arrangement with different ways.In a preferred embodiment, operation-interface is that controller (18) shown in Figure 7 is a double-button switch.Double-button switch has a jog key, and the user can rotate jog key along a direction, makes motor (7) drive output shaft and clockwise rotates, and with this bed is promoted.Rotate counterclockwise the rotating disk key, motor (7) drives output shaft and rotates counterclockwise, and reduces with this bed.In a preferred embodiment, switch and circuit arrangement comprise limit switch, and this limit switch is used to avoid motor to rise to bed more than the desired location and avoids motor that electric lifting device is retracted in the desired location.Also can control the retraction and the stretching, extension of electric lifting device similarly by remote control far infrared receptor.

Fig. 2 has illustrated operation of the present utility model.When by controller (shown in Figure 7 18) with electric controller (15) lift bed the time, motor (7) starting makes output shaft and connected screw rod (14) clickwise.Because the rotation of screw rod (14), the travelling nut (13) that is arranged on the screw rod (14) is removed from motor (7).Because travelling nut (13) away from motor (7), is compressed in the horizontal direction by pivot pin (6) connection and with the mobile assembly supporting leg of cultrating of retarder (9), and bed is risen.As shown in drawings, electric lifting device is promoted the back compare with the state that is in when closing, the supporting leg of the assembly of cultrating (2) and (3) is in different positions.If mattress and bed drawer have as shown in Figure 10 standard thickness, the supporting leg that is in the assembly of cultrating (2) of abundant extended position and (3) can be brought up to the top of mattress the height of overhead 1016 centimetres (40 inches).

When make electric lifting device bed depressed the time by motor controller (15), motor (7) starting makes output shaft and connected screw rod (14) left-hand revolution.Because the rotation of screw rod (14), the travelling nut (13) that is arranged on the screw rod (14) moves to motor (7) direction.Because travelling nut (13) shifts near motor (7), be unfolded in the horizontal direction and inwardly fold by pivot pin (6) connection and with the assembly supporting leg of cultrating that retarder (9) moves, bed is reduced.

In a preferred embodiment, motor (7) comprises a drg.When motor did not start, this drg automatically pinned motor, made bed can keep its height safely.So just avoided deadweight reverse drive screw rod and motor sub-assembly, made the caused motion that do not expect and unsafe of bed sinking because of bed.

Above-mentioned electric lifting device is independently, and reason is that it does not become one with the mattress or the bedstead that are designed to promote.This feature makes the utility model become portable, can be used for numerous beds in the different time.Therefore, any user, hotel or any individual who buys new bed or move can be at new beds or interim with bed use the utility model.Different with the adjustable bed of prior art, this electric lifting device can be carried by the end user.In addition, this electric lifting device can be contained in the customised bedstead, also can be contained in the bedstead support of virtually any size.

In addition, as shown in Figure 4, the adjustability of this electric lifting device makes this system adhere to the bed that hook is fit to all sizes by expansion.So the user can adjust by controlling flexible yardstick according to the size of bed.Shown in Figure 8 is the bed that is configured on the large size bed frame.

Figure 10 has described to be in the sheet of stretch position, the guide rail of pillow (17).In the cover bucket or sleeve pipe of the pair of brackets end on this guide rail (17) connecting frame (1).This guide rail can be stretched by manual, or moves with electronic and other mode.

Claims

1. electric lifting device, comprise framework, electric controller, motor, retarder, the assembly of cultrating, screw rod and travelling nut, it is characterized in that: framework is connected and composed by support, there is chute the inboard of 2 relative supports, the assembly of cultrating has 4 supports, it is the rotating cross frame in center that the middle part of per 2 supports has axle to connect to form with the axle, one end of every support of cross frame is a leg, leg has roller to connect, the other end of every support of cross frame be connected on the framework and chute in, between the 2 secondary cross frames connection support is arranged, motor is connected the back and is installed in one and connects on the support with retarder, the output shaft connecting screw rod of retarder, and screw rod connects travelling nut, travelling nut is fixed on the connection support of another cross frame, and the other end of screw rod is connected on the support of framework.

2. a kind of electric lifting device according to claim 1 is characterized in that: axle drive shaft and screw rod that flexible shaft adaptor union connection reducer is arranged.

3. a kind of electric lifting device according to claim 1 and 2 is characterized in that: have four width extensible arms to be inserted in to be connected with in the face end support of framework and adhere to hook.

4. a kind of electric lifting device according to claim 3 is characterized in that: have in the cover bucket or sleeve pipe of the bracket end on the guide rail connecting frame.

5. a kind of electric lifting device according to claim 1 and 2 is characterized in that: retarder is the deceleration gear.