CN2745443Y

CN2745443Y - Lifting device of electric lifting bed for preventing hand squeezing

Info

Publication number: CN2745443Y
Application number: CN 200420094855
Authority: CN
Inventors: 崔宽峻
Original assignee: XIAMEN GEXIN PLASTIC-RUBBER PRODUCT Co Ltd
Current assignee: XIAMEN GEXIN PLASTIC-RUBBER PRODUCT Co Ltd
Priority date: 2004-11-03
Filing date: 2004-11-03
Publication date: 2005-12-14
Anticipated expiration: 2014-11-03

Abstract

The utility model discloses a lifting device of an electric lifting bed for preventing hand squeezing, which consists of a motor, a transmission mechanism and a crank. The motor drives the crank to do linear motion through the transmission mechanism, the position of one end of the crank just corresponds to the push pedal at the bottom of the bed plate, thus the crank just puts pressure on the push pedal to push the bed plate through the linear motion, or the pressure put on the push pedal is removed to cause the bed plate to freely drop. When a hand is squeezed in the bed descending process, the lifting device of an electric lifting bed can avoid causing a mechanical injury, in order to reduce the pain of the injured person.

Description

The electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands

Technical field

This utility model relates to a kind of electric up-down bed technical field, and is special relevant with the lowering or hoisting gear with anti-tong function.

Background technology

In the prior art, electric up-down bed lifting all realizes by the driven by motor connecting rod.Concrete structure has a lot, but operation principle nothing more than: when bed rises, be to be transmitted in connecting rod, by connecting rod bed board boosted again by motor; When bed is fallen, also be to be transmitted in connecting rod, by connecting rod bed board left behind again that promptly whole lifting is electronic fully by motor.

After bed rises, owing to there is enough big gap between bed board and the bedstead, personages such as child or low IQ very easily occurs hands even limbs are stretched into the situation of this gap, if impose the action that bed is fallen again, the accident that bed board crushes hands or limbs will take place.

And when existing electric up-down bed tong or limbs, not only have the injury of bed board self gravitation adversary or limbs, the more seriously electronic mechanical type injury that brings, and, this mechanical type injury even may cause hands or limb fracture, severed limb or the like miserable scene.

Therefore, change electric up-down bed lowering or hoisting gear, cause the mechanical type injury when avoiding a bed decline tong, reduce the wounded's misery, be the direction of electric up-down bed new product development in the industry.

The utility model content

The purpose of this utility model is to provide a kind of anti-pinch hands electric up-down bed lowering or hoisting gear, and it can avoid causing the mechanical type injury when bed descends tong, thereby reduces the wounded's misery.

For reaching above-mentioned purpose, solution of the present utility model is:

The electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands, mainly form by motor, drive mechanism and crank, motor drives crank by drive mechanism and does rectilinear motion, one end position of the crank just push pedal bottom bed board is corresponding, makes crank just can force in push pedal and the application of force that bed board is boosted or removes push pedal freely falls bed board by rectilinear motion.

Above-mentioned drive mechanism mainly comprises gear and screw mandrel composition, motor by gear drive in screw mandrel, screw mandrel is rotated around its central shaft, crank fixedly forms by two sections, one section of crank is hollow sleeve, forming female thread on the inwall of this hollow sleeve just can cooperate with screw mandrel, make motor drive crank and do rectilinear motion by screw mandrel, the end position of another section of the crank just push pedal bottom bed board is corresponding, makes crank just can force in push pedal and the application of force that bed board is boosted or removes push pedal freely falls bed board by rectilinear motion.Wherein, screw mandrel can be formed by the gear shaft extension, is interference fit between gear shaft and the gear.In addition, can fixedly install a slide cartridge at the bottom of bed, crank is that a section of hollow sleeve is plugged in this slide cartridge, guarantees that further crank does rectilinear motion.

Above-mentioned drive mechanism mainly comprises gear and sleeve pipe composition, sleeve pipe is fixed on the end face of gear, motor by gear drive in sleeve pipe, sleeve pipe is rotated around its central shaft, has female thread on the telescopic inwall, crank fixedly forms by two sections, one section of crank is screw mandrel, this screw mandrel just can with telescopic screw-internal thread fit, make motor drive crank and do rectilinear motion by sleeve pipe, the end position of another section of the crank just push pedal bottom bed board is corresponding, makes crank just can force in push pedal and the application of force that bed board is boosted or removes push pedal freely falls bed board by rectilinear motion.

After adopting said structure, this utility model operation principle is: drive crank by motor by drive mechanism and do rectilinear motion, then, force in the push pedal of bed board by crank, bed board is boosted, realize the rise of bed, or crank is done opposite rectilinear motion, releasing makes bed board do the movement of falling object by self gravitation under the promotion that does not have crank to the application of force of bed board, realizes the decline of bed.

Like this, this utility model compared with prior art, when bed is fallen, be to do the movement of falling object by bed board to realize fully, do not have the mechanical movement of driven by motor of the prior art, so, if when appearing at bed board decline tong in the use, only have the injury of bed board self gravitation adversary or limbs, and there is not the electronic mechanical type injury that brings, reduce the wounded's misery, avoided the generation of hands or limb fracture, severed limb or the like miserable scene.

Description of drawings

Fig. 1 is that this utility model applies to the stereo appearance figure in electric up-down bed;

Fig. 2 is that the bed board that this utility model applies in electric up-down bed rises the action sketch map;

Fig. 3 is that this utility model applies to the bed board down maneuver sketch map in electric up-down bed.

The specific embodiment

This utility model has disclosed the electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands, mainly form by motor 1, drive mechanism 2 and crank 3, motor 1 drives crank 3 by drive mechanism 2 and does rectilinear motion, one end position of crank 3 is just corresponding with the push pedal 91 of bed board 9 bottoms, makes crank 3 just can force in push pedal 91 and the application of force that bed board 9 is boosted or removes push pedal 9 freely falls bed board 9 by rectilinear motion.Like this, when bed is fallen, be to do the movement of falling object by bed board 9 to realize fully, there is not the mechanical movement of driven by motor of the prior art, so, if when appearing at bed board 9 decline tongs in the use, only there is the injury of bed board 9 self gravitation adversarys or limbs, and do not have the electronic 1 mechanical type injury that is brought, and reduced the wounded's misery, avoided the generation of hands or limb fracture, severed limb or the like miserable scene.

Seeing also shown in Fig. 1,2, is a preferred embodiment of the present utility model.Drive mechanism 2 mainly comprises gear 21 (because be known techniques, not being shown specifically among the figure) and screw mandrel 22 compositions among this embodiment, and this screw mandrel 22 can be formed by direct extension of gear shaft, is interference fit between gear shaft and the gear 21.Motor 1 is transmitted in screw mandrel 22 by gear 21, and screw mandrel 22 is rotated around its central shaft.Crank 3 fixedly forms by fixture 33 by two

section

31 and 32, crank 3 slightly is " L " type among this embodiment, one section 31 of crank 3 is hollow sleeve, forming female thread on the inwall of this hollow sleeve just can cooperate with screw mandrel 22, make motor 1 drive crank 3 and do rectilinear motion by screw mandrel 22, the end position of crank 3 another sections 32 is just corresponding with the push pedal 91 of bed board 9 bottoms, makes crank 3 just can force in push pedal 91 and the application of force that bed board 9 is boosted or removes push pedal 91 freely falls bed board 9 by rectilinear motion.In order to guarantee that further crank 3 does rectilinear motion, can at the bottom of bed, fixedly install a slide cartridge 23, crank 3 is plugged in this slide cartridge 23 for a section 31 of hollow sleeve, makes motion more steady.

Cooperate Fig. 2, shown in 3, the operation principle of this embodiment is: be transmitted in screw mandrel 22 by motor 1 forward or reverse, screw mandrel 22 is rotated around its central shaft, be transmitted in crank 3 by screw mandrel 22 again and do rectilinear motion, as shown in Figure 2, when another section 32 of crank 3 forces in the push pedal 91 of bed board 9, bed board 9 is boosted, realize the rise of bed, and for example shown in Figure 3, when crank 3 is done opposite rectilinear motion, when another section 32 of crank 3 removed the application of force of bed board 9, bed board 9 was under the promotion that does not have crank 3 another sections 32, do the movement of falling object by self gravitation, realize the decline of bed, be illustrated in figure 3 as the moment of crank 3 motions, its another section 32 does not contact with push pedal 91 and forms gap A.

Certainly, drive mechanism 2 of the present utility model is not limited to the restriction of this embodiment, such as, drive mechanism 2 also can mainly comprise gear and sleeve pipe composition, sleeve pipe is fixed on the end face of gear, motor by gear drive in sleeve pipe, sleeve pipe is rotated around its central shaft, has female thread on the telescopic inwall, crank fixedly forms by two sections, and one section of crank is screw mandrel, this screw mandrel just can with telescopic screw-internal thread fit, the position exchange of sleeve pipe in the foregoing description and screw mandrel soon, its result is equivalent to the foregoing description.

Claims

1, the electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands, it is characterized in that: mainly form by motor, drive mechanism and crank, motor drives crank by drive mechanism and does rectilinear motion, one end position of the crank just push pedal bottom bed board is corresponding, makes crank just can force in push pedal and the application of force that bed board is boosted or removes push pedal freely falls bed board by rectilinear motion.

2, the electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands as claimed in claim 1, it is characterized in that: drive mechanism mainly comprises gear and screw mandrel composition, motor by gear drive in screw mandrel, screw mandrel is rotated around its central shaft, crank fixedly forms by two sections, one section of crank is hollow sleeve, forming female thread on the inwall of this hollow sleeve just can cooperate with screw mandrel, make motor drive crank and do rectilinear motion by screw mandrel, the end position of another section of the crank just push pedal bottom bed board is corresponding, makes crank just can force in push pedal and the application of force that bed board is boosted or removes push pedal freely falls bed board by rectilinear motion.

3, the electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands as claimed in claim 2 is characterized in that: screw mandrel is formed by the gear shaft extension, is interference fit between gear shaft and the gear.

4, the electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands as claimed in claim 2 is characterized in that: fixedly install a slide cartridge at the bottom of bed, crank is that a section of hollow sleeve is plugged in this slide cartridge.

5, the electric up-down bed lowering or hoisting gear of a kind of anti-pinch hands as claimed in claim 1, it is characterized in that: drive mechanism mainly comprises gear and sleeve pipe composition, sleeve pipe is fixed on the end face of gear, motor by gear drive in sleeve pipe, sleeve pipe is rotated around its central shaft, has female thread on the telescopic inwall, crank fixedly forms by two sections, one section of crank is screw mandrel, this screw mandrel just can with telescopic screw-internal thread fit, make motor drive crank and do rectilinear motion by sleeve pipe, the end position of another section of the crank just push pedal bottom bed board is corresponding, makes crank just can force in push pedal and the application of force that bed board is boosted or removes push pedal freely falls bed board by rectilinear motion.