CN201208388Y

CN201208388Y - Leg stretching device of massage chair

Info

Publication number: CN201208388Y
Application number: CNU2008200857861U
Authority: CN
Inventors: 林彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-14
Filing date: 2008-04-14
Publication date: 2009-03-18
Anticipated expiration: 2018-04-14

Abstract

The utility model relates to a leg-stretching device of a massage chair, which overcomes the disadvantages that the prior device is provided with a primary leg-stretching device, unable to meet the requirements of the long-legged, and has poor application effect and excessive and complex mechanisms. The leg-stretching device comprises a fixing frame, a main driving mechanism and a driven mechanism, wherein the fixing frame can rotate round one side thereof; a linkage mechanism is arranged on the driven mechanism, wherein the linkage mechanism and the driven mechanism form a linkage; the displacement distance of the linkage mechanism relative to the fixing frame and the displacement distance of the driven mechanism relative to the fixing frame form a multiple relationship; the linkage mechanism and the driven mechanism are matched with each other, so as to realize two times of the stretching length of the linkage mechanism relative to the fixing frame, wherein the time thereof is the same as that of the primary stretching device. The overall stretching device is frame-typed, so that the leg-stretching device has the advantages of simple structure, convenient installation, trouble-shooting and maintenance and lower cost; and the screw nut and the screw have a self-locking structure, thereby realizing free rotation and stoppage and ensuring convenient use.

Description

The leg's telescopic mechanism of massage armchair

Technical field

This utility model relates to a kind of retractor device of massage armchair, especially a kind of leg's telescopic mechanism of massage armchair.

Background technology

What existing massage armchair used mostly is the one-level leg's telescopic mechanism, to adapt to the crowd of different heights, under shank bending and extended configuration, use, but the one-level leg's telescopic mechanism, its flexible length can not satisfy massage armchair or higher requirement sometimes, influences result of use.

It is a kind of leg's telescopic mechanism that is used for massage armchair that a kind of patent name is arranged, its notification number is CN201042505Y, this patent adopts the secondary telescoping mechanism to satisfy the long people of different lower limbs and uses, comprise the motor transmission, interlock and uncoupling gear, link gear is established lower limb brandreth up and down, lock sub-piece guide pad, interior outer slide, lock sub-piece, the shank walker, lock sub-limited block assembly and extension spring, the leg's telescopic mechanism of this mechanism adopts the sub-piece guide pad of lock to match with the guiding ruler, realize the interlock of shank brandreth, but this leg's telescopic mechanism complex structure, inconvenience is installed, and leading screw and nut can be realized self-locking, increase uncoupling gear again and can have the phenomenon of interfering or hindering, and the guide frame complexity of locking sub-piece, cost of manufacture is higher.

Summary of the invention

This utility model has solved available technology adopting one-level leg's telescopic mechanism, can not satisfy the long personnel's of lower limb use, the unfavorable shortcoming of result of use, provide a kind of employing secondary leg's telescopic mechanism to realize interlock, increase collapsing length, can satisfy the leg's telescopic mechanism of the massage armchair that the personnel of different heights use.

This utility model has also solved the redundant complexity of mechanism in the prior art, and inconvenience is installed, and the shortcoming that cost is higher provides a kind of simple in structure, easy for installation, the leg's telescopic mechanism of lower-cost massage armchair.

The technical scheme that its technical problem that solves this utility model adopts is: a kind of leg's telescopic mechanism of massage armchair, comprising can be around fixed frame and the main drive gear and the follower of a sideway swivel, wherein, described follower is provided with the link gear that can form interlock with follower, and the displacement of link gear relative fixed frame and the follower relative fixed moving distance of frameing shift becomes multiple to concern.Fixed frame is fixed on the massage armchair rotatable, and the follower band link gear and moved up and down along fixed frame, arrives to fix behind the suitable position to stop; Link gear is along with follower moves simultaneously, follower by main drive gear when fixed frame moves, link gear and then moves, the follower relative fixed is frameed shift when moving distance for S, and link gear is existing to move the 2S distance to fixed frame, forms to double to move, shift motion is big, can satisfy the long people of different lower limbs and use, and move faster, double the moving with moving of follower of link gear finished simultaneously; Main drive gear can be arranged on fixed frame or follower or the link gear.

As preferably, main drive gear comprises motor and leading screw, and leading screw is fixed on the fixed frame by bearing block, is rotary with feed screw nut on the leading screw; Motor is provided with belt wheel with the end of leading screw and is connected by belt.The rotation of motor rotating band movable wire thick stick, the feed screw nut on the leading screw just moves up and down along leading screw, and leading screw and feed screw nut are locking structure, be that feed screw nut can not drive the leading screw rotation, can only drive feed screw nut by leading screw, when leading screw did not change like this, feed screw nut can stop on the leading screw; If the leading screw of main drive gear is fixed on the follower, then feed screw nut is fixed on the fixed frame, and motor and leading screw be in same position, and feed screw nut is fixed on the follower if leading screw is fixed on the link gear; The bearing block at the same end of leading screw and motor place and motor cabinet match and are fixed on the fixed frame, and the bearing block of the leading screw other end is selected as required.

Link gear comprises the interlock frame, and follower comprises driven frame and the pulley that is arranged on the driven frame, is wound with steel wire rope on the pulley, and driven frame and feed screw nut are fixing also can to move up and down along leading screw.

Pulley is arranged on the both sides up and down of driven frame, and steel wire rope is fixed on the fixed frame by fixed block, and the interlock frame is fixed on the steel wire rope by rope cramp, and the interlock frame can be along with the same moved further of steel wire rope; The described link gear relative fixed moving distance of frameing shift is frame shift 2 times of moving distance of follower relative fixed.Leading screw rotates under the drive of motor, feed screw nut just moves up and down along leading screw, the driven frame and the same moved further of feed screw nut that are fixed together with feed screw nut, because steel wire rope is fixed on the fixed frame by fixed block, when therefore driven frame moves up and down, pulley on the driven frame makes constantly changing around bent position of steel wire rope, thereby make the interlock frame that is fixed together with steel wire rope along with the same moved further of rope cramp, rope cramp mobile depends on moving of pulley, steel wire rope and pulley are equivalent to the movable pulley structure, and the distance that rope cramp moves is 2 times of the distance that moves of pulley; The interlock frame relative fixed multiple that moving distance and driven frame relative fixed frame shift between the moving distance of frameing shift can be set as required, increases or reduce the multiple that pulley can change interlock.

Fixed frame is provided with gathering sill I, driven frame is embedded in the groove of gathering sill, the interlock frame is provided with gathering sill II, and the groove depth of gathering sill I and gathering sill II is less than half of driven circle frame thickness, and gathering sill I and gathering sill II positioned opposite form fastening structure driven frame is wrapped in the groove.Two gathering sills form engaging support mechanism, driven frame moves in engaging support mechanism and can play guide effect, stablizes driven frame, and the groove depth of gathering sill is less than half of driven circle frame thickness, the phenomenon that two relative gathering sills can not interfere, guarantee to link frame and driven frameing shift are moved smoothly.

The distance that feed screw nut moves up and down along leading screw is less than half of rope capacity, and the driven relatively moving distance of frameing shift of the frame that equals to link.Pulley can not be crossed to opposite side in the position of rope cramp, so the displacement of rope cramp makes that the displacement of pulley is half of rope cramp displacement, therefore the displacement of feed screw nut is less than half of rope capacity, and is corresponding with the mobile coverage of rope cramp.

The interlock frame is provided with secondary frame 32, interlock frame and driven frame are in one plane, secondary frame is fixed on the side of interlock frame, the end of fixed guide groove II is coupled together, its length that connects length and driven frame matches, and the middle part of secondary frame and the corresponding position of the rope cramp on the steel wire rope are provided with rope cramp folder post.

Motor is fixed on the fixed frame by motor cabinet, and the belt wheel on the motor is big belt wheel, and the belt wheel on the leading screw is a small pulley.

Fixed frame is provided with stopping means, and the position of stopping means setting can contact with driven frame, and can pass the signal along to motor and can realize that the spacing of motor stops.Stopping means can be protected feed screw nut, motor and whole retractor device, and when feed screw nut contacted stopping means, motor will shut down.

Fixed frame and driven frame, interlock frame all are frame structure, and the lower end of interlock frame is provided with the step support, and the step support is perpendicular with the interlock frame, and the both sides of fixed frame are provided with rotating shaft.Leg's telescopic mechanism is controlled angle and spacing by the rotating shaft that is fixed on the fixed frame both sides, promptly stop operating when rotating suitable position, the rotation of fixed frame can be controlled by the expansion link on the fixing massage armchair, when arriving correct position, stops to drive expansion link.

The beneficial effects of the utility model are: by cooperatively interacting of link gear and follower, can realize the collapsing length of link gear with respect to 2 times of fixed frames, and the time of time when having only one-level flexible, retractor device is a frame-type, simple in structure, easy for installation, check that fault and maintenance are also convenient, and cost is lower, feed screw nut and leading screw are that self-locking structure can be realized stopping in place with changeing with stopping, and need not increase other lockable mechanisms, link gear is all wanted gathering sill to lead in moving process and is fixed, make and move smoothly, reduce noise, fixed frame can satisfy different human needs around the rotating shaft rotation, can improve massage effect, improve comfort level.

Description of drawings

Fig. 1 is a kind of structural representation of this utility model;

Fig. 2 is the structural representation of a kind of fixed frame of this utility model structure shown in Figure 1;

Fig. 3 is the structural representation of a kind of driven frame of this utility model structure shown in Figure 1;

Fig. 4 is the structural representation of a kind of frame that links of this utility model structure shown in Figure 1;

Fig. 5 is the structural representation of a kind of main drive gear of this utility model;

Fig. 6 is a kind of pilot process figure of this utility model;

Fig. 7 is a kind of interlock sketch map of this utility model.

Among the figure: 1, fixed frame, 2, follower, 3, link gear, 4, fixed block, 12, rotating shaft, 13, vertical beam, 14, stopping means, 15, main drive gear, 151, bearing block, 152, feed screw nut, 153, leading screw, 154, motor, 155, big belt wheel, 156, belt, 157, small pulley, 16, motor cabinet, 17, gathering sill I, 21, driven frame, 22, spacing contact, 23, pulley, 24, rope cramp, 25, steel wire rope, 31, interlock frame, 32, secondary frame, 33, the folder post, 34, step support, 35, gathering sill II.

The specific embodiment

Below by specific embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment: a kind of leg's telescopic mechanism of massage armchair (referring to accompanying drawing 1), comprising can be around the fixed frame 1 and the elevating mechanism that contains follower 2 and link gear 3 of a sideway swivel, be provided with main drive gear 15 in the fixed frame (referring to accompanying drawing 2), the both sides of fixed frame upper end are provided with rotating shaft 12, the vertical beam 13 parallel with main drive gear fixed in the centre position of two frameworks up and down of fixed frame, the two ends up and down of vertical beam are fixed with stopping means 14, follower comprises driven frame 21, link gear comprises interlock frame 31, fixed frame, driven frame and interlock frame all are the frame-type square structure, the inboard, lower end of the vertical framework of fixed frame is fixed with gathering sill I17, the notch of gathering sill I outwardly, the upper end of the vertical framework of interlock frame is fixed with gathering sill II35, the notch positioned opposite of two gathering sills, groove depth is less than the thickness of the vertical framework of driven frame, and the vertical framework of driven frame is through in the engaging support mechanism of two gathering sills composition, can move up and down.

Main drive gear 15 (referring to accompanying drawing 5) comprises motor 154 and leading screw 153, and the two ends of leading screw are fixed on by bearing block 151 on the centre position of fixed frame, are rotary with feed screw nut 152 on the leading screw, and feed screw nut and leading screw form self-locking structure; Motor is fixed on the fixed frame by motor cabinet 16, and the end of motor has big belt wheel 155, and the same end of leading screw has small pulley 157, links to each other with belt 156 between big belt wheel and the small pulley.

Link gear 3 comprises driven frame 21 (referring to accompanying drawing 3) and interlock frame 31 (referring to accompanying drawing 4), the middle part, upper end of driven frame and middle part, lower end respectively are fixed with a pulley 23, be wound with steel wire rope 25 between two pulleys, be fixed on the fixed frame with fixed block 4 near a section of following head sheave on the steel wire rope of pulley one side, the steel wire rope upper end of pulley opposite side is fixed with rope cramp 24, the back side and the feed screw nut of last head sheave are fixed, and can move up and down along leading screw, be fixed with spacing contact 22 on the limit of last head sheave, the position of spacing contact is corresponding with the position of stopping means, the interlock frame is provided with secondary frame, interlock frame and driven frame are in one plane, secondary frame is fixed on the side of interlock frame, the end of fixed guide groove II is coupled together, its length that connects length and driven frame matches, the medium position of secondary frame is provided with folder post 33, the position is corresponding with the position of rope cramp, rope cramp can be fixed on the folder post, the interlock frame is fixed on the steel wire rope by rope cramp, the interlock frame can rotate synchronously along with steel wire rope, the distance that moves up and down of feed screw nut deducts the length of the circumference of pulley for half of rope capacity, the lower end of interlock frame is provided with step support 34, and the step support is perpendicular with the interlock frame.

Motor 154 rotations, drive leading screw 153 rotations by belt 156, thereby driving feed screw nut 152 moves up and down along leading screw, do with the fixed driven frame 21 of feed screw nut and to be synchronized with the movement, because of the point and the fixed frame 1 of steel wire rope is fixed together, when so driven frame moves, pass through pulley, make the bending position of steel wire rope change, form the movable pulley structure, the point relative fixed of rope cramp position is frameed shift moving on the steel wire rope, the distance of the driven moving unit of frameing shift, the rope cramp relative fixed is frameed shift and is moved the distance of two units, and the frame relative fixed that promptly links is frameed shift and moved the distance of two units, and the moving direction identical with the driven moving direction of frameing shift (referring to accompanying drawing 6 accompanying drawings 7) of frameing shift links.

Above-described embodiment is a kind of preferred version of the present utility model, is not this utility model is done any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technical scheme that claim puts down in writing.

Claims

1, a kind of leg's telescopic mechanism of massage armchair, comprising can be around fixed frame (1) and the main drive gear (15) and the follower (2) of a sideway swivel, it is characterized in that described follower is provided with the link gear (3) that can form interlock with follower, the displacement of link gear relative fixed frame and the follower relative fixed moving distance of frameing shift becomes multiple to concern.

2, the leg's telescopic mechanism of massage armchair according to claim 1, it is characterized in that described main drive gear comprises motor (154) and leading screw (153), leading screw is fixed on the fixed frame by bearing block (151), be rotary with feed screw nut (152) on the leading screw, feed screw nut and leading screw form self-locking structure; Motor is provided with belt wheel with the end of leading screw and is connected by belt (156).

3, the leg's telescopic mechanism of massage armchair according to claim 1, it is characterized in that described link gear comprises interlock frame (31), follower comprises driven frame (21) and is arranged on pulley (23) on the driven frame, be wound with steel wire rope (25) on the pulley, driven frame and feed screw nut are fixing also can to move up and down along leading screw.

4, the leg's telescopic mechanism of massage armchair according to claim 3, it is characterized in that pulley is arranged on the both sides up and down of driven frame, steel wire rope is fixed on the fixed frame by fixed block (4), the interlock frame is fixed on the steel wire rope by rope cramp (24), and the interlock frame can be along with the same moved further of steel wire rope; Described interlock frame is along with the rope cramp relative fixed moving distance of frameing shift is frame shift 2 times of moving distance of driven frame relative fixed.

5, according to the leg's telescopic mechanism of claim 1 or 3 described massage armchairs, it is characterized in that fixed frame is provided with gathering sill I (17), driven frame is embedded in the groove of gathering sill I, the interlock frame is provided with gathering sill II (35), the groove depth of gathering sill I and gathering sill II is less than half of driven circle frame thickness, and gathering sill I and gathering sill II positioned opposite form fastening structure driven frame is wrapped in the groove.

6, according to the leg's telescopic mechanism of claim 2 or 3 described massage armchairs, it is characterized in that distance that described feed screw nut moves up and down along leading screw less than half of rope capacity, and the driven relatively moving distance of frameing shift of the frame that equals to link.

7, the leg's telescopic mechanism of massage armchair according to claim 3, it is characterized in that described interlock frame is provided with secondary frame (32), interlock frame and driven frame are in one plane, secondary frame is fixed on the side of interlock frame, the end of fixed guide groove II is coupled together, its length that connects length and driven frame matches, and the middle part of secondary frame and the corresponding position of the rope cramp on the steel wire rope are provided with rope cramp folder post (33).

8, the leg's telescopic mechanism of massage armchair according to claim 2 is characterized in that described motor is fixed on the fixed frame by motor cabinet, and the belt wheel on the motor is big belt wheel (155), and the belt wheel on the leading screw is small pulley (157).

9, the leg's telescopic mechanism of massage armchair according to claim 1, it is characterized in that described fixed frame is provided with stopping means (14), the position of stopping means setting can contact with driven frame, and can pass the signal along to motor and can realize that the spacing of motor stops.

10, according to the leg's telescopic mechanism of claim 1 or 3 described massage armchairs, it is characterized in that described fixed frame and driven frame, interlock frame all are frame structure, the lower end of interlock frame is provided with step support (34), the step support is perpendicular with the interlock frame, and the both sides of fixed frame are provided with rotating shaft (12).