A kind of adjustable massage armchair of backrest angle
The utility model relates to massage armchair more particularly to it is a kind of can backrest angle from head massage to huckle it is adjustable
Save massage armchair.
Current existing massage armchair generally uses walking massage machine core to massage human body.Since machine core walking is led
The limitation of rail track, when backrest uses split type with mounting, rotation connection between the two is so that machine core massage range only limits
In back, and huckle can not be extended to；When backrest and mounting use monoblock type, although the machine core massage domain of walk can be to big
Leg, but guide rail angle can not be adjusted, and can not meet the comfort level requirement of all users simultaneously.
Notification number is the Chinese invention patent of CN101611971A, is provided " a kind of to be massaged into huckle from head
Massage armchair " comprising backrest portion, seat portion, backrest driving mechanism, handrail, walking massage machine core and control circuit；Backrest portion
Equipped with shell and guide rail bracket；Seat portion is equipped with mounting and seat board, and backrest driving mechanism is equipped with electric pushrod, swing rod and connecting rod, electricity
Dynamic push rod output end is connect with swing rod, and electric pushrod bottom end is connect with mounting, and swing rod both ends are connect with mounting and connecting rod, and connecting rod is another
One end is connect with guide rail bracket lower part；Handrail is set to mounting two sides, and walking massage machine core is set in the shell of backrest portion, walking
The traveling wheel of massager core and the guide rail of guide rail bracket roll and cooperate；Control circuit is equipped with microprocessor, manual function keyboard and extremely
Few two limit sensors, limit sensors are set to the guide rail top and bottom of guide rail bracket.
But the massage armchair in the patented technology, only when being adjusted to prone position, massager core could be massaged into from head
Thigh, and under user's sitting posture state, can only be into since massager core can not run to mounting from backrest, under the state
Row back massage cannot achieve waist massage below.
Summary of the invention
Technical problem to be solved in the utility model be for the prior art status provide one kind can to backrest and
The relative position of mounting carries out the backrest angle that can carry out massaging from head to huckle under step-less adjustment and any angle
Adjustable massage armchair.
Technical solution adopted by the utility model to solve the above technical problems is as follows: massage armchair is adjusted in the backrest angle,
Including mounting, backrest and the guide rail for being used to support massager core walking, it is characterised in that the first end of the backrest is hinged on institute
It states on mounting, the first driving device for driving the backrest to rotate relative to the mounting is drivingly connected the backrest；
The guide rail includes supporting first be arranged on the mounting, supporting second be arranged in the backrest
With for connecting described first and second middle part；
The middle part is flexible structure, can be deformed with the rotation of the backrest；
The mounting is equipped with the first sliding rail, and described first can slidably limit on first sliding rail, and institute
The length for stating the first sliding rail is greater than first length.
Preferably, the guide rail may include support plate and the rack gear that support is connected in the support plate；
The support plate includes described first, second and middle part；The rack gear can be with the deformation of the middle part
And it deforms；
First sliding rail is groove-like structure, and described first can be slidingly received in the first sliding rail of channel-shaped.By guide rail
Fission design, can reduce manufacture difficulty, and convenient for assembly.
In above-mentioned each scheme, the structure of middle part can there are many, preferably, the middle part may include multiple in
Between portion length direction successively hinged chain link；The end face that adjacent link is docked is folding face, and after adjacent link docking,
Under the first face or the second face paste conjunction state in adjacent folding face, " V " type is formed between the second face or the first face in adjacent folding face
It is open.
The chain link may include the substrate of plate, and the first side of the substrate has the first convex block and second of evagination
Convex block, first convex block and the setting of second convex block interval；The second side opposite with the first side of substrate is equipped with
Third convex block；Gap between first convex block and second convex block, which is subject to, can accommodate the third convex block；
Axis hole is equipped on first convex block, the second convex block and third convex block；Third convex block is inserted into adjacent link
The first convex block and the second convex block between, connecting shaft is inserted into the axis holes of three convex blocks that adjacent link is hinged.
Preferably, the first side and second side of the substrate can be inwardly recessed, and be formed and the connecting shaft phase
The arc groove of adaptation.
As an improvement, a plurality of supporting rib can also be equipped at intervals on the bottom surface of the rack gear.The design of supporting rib can
More elasticity are provided to rack gear, to be further ensured that the requirement of rack gear deformation.
Connection type between rack gear and support plate can there are many, preferably, can the back side of the rack gear up to
It is equipped at intervals with two pillars less；The support plate is equipped at least one location hole and at least one for being used to position corresponding pillar
A limit hole for being used to accommodate other pillars；The location hole and the pillar are tight fit；The limit hole and the pillar
For loose fit.
In above-mentioned each scheme, the mounting can be slidably arranged on the second sliding rail of pedestal, the first driving dress
It installs between the backrest and the mounting.
It can also be additionally provided with the second driving device on the base, second driving device is drivingly connected the seat
It is preferred that the first driving device and second driving device are electric pushrod；
The lower middle part of the backrest is hinged on the vertical bar of the mounting；First cylinder base of the first driving device is hinged
On the mounting, the first push rod of first driving device is hinged on the bottom linkage rod of the backrest；
Second cylinder base of second driving device hingedly on the base, the second push rod of second driving device
It is hinged on the bottom linkage rod of the mounting.
Compared with prior art, massage armchair is adjusted, and mounting and backrest is seperated in backrest angle provided by the utility model
Design, and will be designed to flexible guide rail in the middle part of guide rail, can tilt angle of the step-less adjustment backrest relative to mounting, and
For backrest under arbitrary inclination, massage assembly can run to mounting from backrest, to realize from head to huckle
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model embodiment assembling structure；
Fig. 2 is the stereoscopic schematic diagram of support plate middle part in the utility model embodiment；
Fig. 3 is the stereoscopic schematic diagram of chain link in the utility model embodiment；
Fig. 4 is the stereoscopic schematic diagram of the utility model embodiment middle rack；
Fig. 5 is the longitudinal sectional view of the utility model embodiment assembling structure；
Fig. 6 is the schematic diagram in the utility model embodiment after adjacent link docking；
Fig. 7 is the stereoscopic schematic diagram of guide rail assembling structure in the utility model embodiment.
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figures 1 to 7, which includes pedestal 5, mounting 1, backrest 2, guide rail 3 and massager core 9, Qi Tajie
Structure is same as the prior art.Wherein:
Pedestal 5 is the brace foundation of entire massage armchair, which is provided with the second sliding rail 51.
Mounting 1 is the support base of massage armchair portions associated components, and bottom, which can be slidably supported, is connected to the second sliding rail 51
On；The upper surface of mounting 1 is equipped with first sliding rail 11 corresponding with following guide rails 3, and the first sliding rail 11 in the present embodiment is
Backrest 2 is the attachment base of massage armchair back associated components, and lower middle part is hinged on the vertical bar 12 of mounting 1.
First driving device 4 and the second driving device 6 are respectively used to driving backrest 2 relative to the rotation of mounting 1 and mounting 1
It is slided relative to pedestal 5.
First driving device 4 and the second driving device 6 in the present embodiment are electric pushrod；Wherein, the first driving dress
It sets 4 the first cylinder base 42 to be hinged on mounting 1, the first push rod 41 of first driving device is hinged on the bottom linkage rod 21 of backrest
On.Second cylinder base 62 of the second driving device 6 is hinged on pedestal 5, and the second push rod 61 of the second driving device is hinged on mounting
Bottom linkage rod 13 on.
Guide rail 3 has two, is symmetrical arranged；Every guide rail 3 includes that support plate 34 and support are connected in support plate 34
Rack gear 35.Wherein support plate 34 includes first 31 be connected on mounting 1, second 32 be connected in backrest 2 and connection
First 31 and second 32 middle part 33.It can be slidingly received at for first 31 in the first sliding rail of channel-shaped 11, the first sliding rail
11 length is slightly larger than first 31 length, mobile surplus needed for deformation when guide rail moves when providing backrest rotation.
Middle part 33 is flexible structure, can be deformed with the rotation of backrest；The structure of middle part 33 can there are many, such as
It can be flexible metal plate, or the other structures and material that can deform in the longitudinal direction in the prior art.This implementation
Middle part 33 in example is successively hingedly formed by multiple chain links 331 by connecting shaft 367.Specifically:
Each chain link 331 includes the substrate 363 of plate, and the first side of substrate 363 has the first convex block 364 of evagination
With the second convex block 365, the first convex block 364 and the setting of the second convex block 365 interval；Second opposite with the first side of substrate 363
Side is equipped with third convex block 366；Gap between first convex block 364 and the second convex block 365 is can accommodate the third convex block
Subject to 366；
Axis hole compatible with connecting shaft 367 is equipped on first convex block 364, the second convex block 365 and third convex block 366
The first side and second side of substrate 363 are inwardly recessed, and form arc groove compatible with connecting shaft 367
Corresponding to each pillar 352, limit hole 354 is equipped on substrate 363.
In the present embodiment, the end face that chain link is docked with adjacent link is folding face, and after adjacent link docking, adjacent
Under 362 fit-state of the first face 361 or the second face of folding face, formed between the second face 362 or the first face 361 of adjacent folding face
" V " type is open.The aperture of V-type opening determines adjustable maximum angle between massage chair seat frame and backrest；That is V-type is open
Size can be set according to the adjustable-angle range of mounting and backrest.
Multiple limit holes 354 and a location hole 353 are equipped at intervals on the back side of support plate 34；Limit hole 354 is waist type
Rack gear 35 is the walking track of massager core 9, and at least its part for corresponding to middle part 33 can be with middle part 33
It deforms and deforms.Rack gear 35 in the present embodiment is prepared using elastic material, along the length direction interval of rack gear on lower surface
Equipped with a plurality of supporting rib 351 being laterally arranged and a longitudinal bracing muscle 355 along the setting of rack gear length direction.Supporting rib is set
The intensity on the one hand increasing rack gear is set, the elasticity of rack gear deformation is on the other hand provided in structure.On the bottom surface of rack gear also
It is equipped at intervals with multiple pillars 352；One of 352 inserting of pillar to tight fit between location hole 353, with location hole 353, thus
Rack gear is positioned；Remaining pillar 352 is inserted into corresponding limit hole 354, and limit hole 354 and pillar 352 are pine
Cooperation, in order to adjust, pillar 352 can the micro sliding in limit hole 354 after the deformation of backrest angle hour rack.
The working principle of the massage armchair is described as follows:
When needing the angle of adjusting massage chair back, first driving device drives backrest to rotate relative to mounting, and second drives
Dynamic device driving mounting is slided relative to pedestal；Since the middle part of support plate is flexible structure, guide rail has in the longitudinal direction
There is certain elasticity, therefore the rotational angle of backrest can be step-less adjustment, and the middle part after adjusting and first, second
Between be in round and smooth connection, no matter therefore backrest under what angle, massager core can walk along guide rail, no matter that is, user exists
Under what posture, the massage from head to huckle can be realized.