The leg's telescopic mechanism of massage armchair
Technical field
This utility model relates to a kind of leg's telescopic mechanism of massage armchair.
Background technology
For the people who makes massage armchair be fit to different builds uses, the leg's telescopic mechanism of massage armchair has become to satisfy the necessary device of this demand.The leg's telescopic mechanism of prior art uses motor more, telescoping mechanisms such as screw mandrel, belt interlock, and this kind structure is assorted multiple, and production cost is too high, answers the demand in market with significant discomfort.
The utility model content
At the shortcoming of prior art, the purpose of this utility model provides the leg's telescopic mechanism of a kind of cost massage armchair lower, simple in structure.
For achieving the above object, the technical solution of the utility model is: a kind of leg's telescopic mechanism of massage armchair, it comprises that one can be around framework, step support and the telescoping mechanism thereof of massage armchair one sideway swivel, this telescoping mechanism comprises expansion link and the elastic structure that is connected between framework and the step support, and this framework connection one can make the driving device of its translation.
This expansion link comprises and is fixed on the bassoon on the framework and is plugged in the bassoon and is fixed on the tubule of step support; This expansion link is positioned at the and arranged on left and right sides of framework.
This elastic structure is the powerful rubber band that is fixed between framework and the step support; The quantity of this elastic structure is four, and is uniformly distributed between framework and the step support; This elastic structure is the coil tension spring that is fixed between framework and the step support.
This driving device comprises motor that is installed on the massage armchair and the drive mechanism that the rotation of motor output shaft is converted into the framework translation; This drive mechanism comprises the connecting rod of the crank that is connected with motor output shaft, the rocking bar that is connected with framework and connecting crank and rocking bar.
This step support has as the slide pulley of the stressed strong point of front and back; This framework is articulated on the massage armchair by crank; This framework and the step support framework that is square.
This utility model compared with prior art has following advantage and beneficial effect:
This utility model has solved the existing motor that needs to use, screw mandrel, the flexible expensive and complicated technology structure of belt interlock.Use the slide rail mode of big pipe box tubule, use powerful rubber band as flexible device, with the stressed strong point of the pulley under the step support as the front and back slip, as the flexible power of this utility model structure, step on the length of the pressure of step support and shank as the flexible distance of length with driving device by being sitting in sole on the massage armchair seat.This utility model can solve the function of leg's telescopic mechanism by low-cost and simple structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described in detail.
As shown in Figure 1, a kind of leg's telescopic mechanism of massage armchair, it comprises that one can be around framework 6, step support 7 and the telescoping mechanism thereof of massage armchair one sideway swivel, this telescoping mechanism comprises expansion link and the elastic structure 3 that is connected between framework 6 and the step support 7, and these framework 6 connections one can make the driving device 5 of its translation.User can rotate to leg's telescopic mechanism suitable position as required, and be adjusted to suitable height by driving device, when user is sitting on the massage armchair, utilize sole with step support 7 past pressing down, expansion link and elastic structure 3 will be stretched to the length distance of shank, can be comfortable, natural allow the user shank that stretches.
This expansion link comprises the bassoon 1 that is fixed on the framework and is plugged in the bassoon 1 and is fixed on the tubule 2 of step support; This expansion link is positioned at the and arranged on left and right sides of framework 6.This elastic structure 3 is for being fixed in the powerful rubber band between framework 6 and the step support 7; The quantity of this elastic structure 3 is four, and is uniformly distributed between framework 6 and the step support 7; This elastic structure 3 is for being fixed in the coil tension spring between framework 6 and the step support 7.This telescoping mechanism simple in structure produced easily and realized, greatly reduces production cost.
This driving device 5 comprises motor that is installed on the massage armchair and the drive mechanism that the rotation of motor output shaft is converted into the framework translation; This drive mechanism comprises the connecting rod of the crank that is connected with motor output shaft, the rocking bar that is connected with framework and connecting crank and rocking bar.
This step support 7 has as the slide pulley 4 of the stressed strong point of front and back; This framework 6 is articulated on the massage armchair by crank; This framework 6 and step support 7 framework that is square.
This utility model has solved the existing motor that needs to use, screw mandrel, the flexible expensive and complicated technology structure of belt interlock.Use the slide rail mode of big pipe box tubule, use powerful rubber band as flexible device, with the stressed strong point of the pulley under the step support as the front and back slip, as the flexible power of this utility model structure, step on the length of the pressure of step support and shank as the flexible distance of length with driving device by being sitting in sole on the massage armchair seat.This utility model can solve the function of leg's telescopic mechanism by low-cost and simple structure.