CN108851690A - Automatic lifting chair - Google Patents
Automatic lifting chair Download PDFInfo
- Publication number
- CN108851690A CN108851690A CN201810568069.2A CN201810568069A CN108851690A CN 108851690 A CN108851690 A CN 108851690A CN 201810568069 A CN201810568069 A CN 201810568069A CN 108851690 A CN108851690 A CN 108851690A
- Authority
- CN
- China
- Prior art keywords
- support rod
- sliding block
- straight line
- rack gear
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/26—Chairs or stools with vertically-adjustable seats with vertical, or inclined toothed rack; with peg-and-notch mechanism
- A47C3/265—Chairs or stools with vertically-adjustable seats with vertical, or inclined toothed rack; with peg-and-notch mechanism with rack-and-pinion gearing
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/22—Chairs or stools with vertically-adjustable seats with balancing device, e.g. by spring, by weight
Abstract
The invention discloses a kind of automatic lifting chairs, support rod including pedestal and for being connect with seat board, support rod is slidably connected on the base along the vertical direction, the cavity slided for support rod is equipped in pedestal, cavity inner wall is equipped with annular protrusion, cavity is divided into upper chamber and lower chambers by annular protrusion, and annular protrusion is equipped with the through-hole passed through for support rod；Support rod lower end is rotatably connected to wobble plate by the first hinge joint, lower chambers bottom is respectively provided with the first block and the second block for pushing against or being detached from wobble plate at wobble plate both ends, wobble plate both ends pass through the first tension spring respectively, the second tension spring is connect with pedestal, first tension spring and the second tension spring stiffness factor differ, and are equipped with the bayonet lock for pushing against or being detached from wobble plate close to the small side of stiffness factor on support rod.There is provided that a kind of structure is simple, safety coefficient is improved the automatic lifting chair high with bearing capacity.
Description
Technical field
The present invention relates to a kind of automatic lifting chairs.
Background technique
Automatic lifting chair is a kind of chair sat for people, he the characteristics of be the height of adjustable seat upper base plate,
Seat board is slidably connected on the base along the vertical direction, and pedestal can be placed on the ground, and then adjusts a people relative to ground
Sitting position height.The key of one automatic lifting chair is that the mechanism of its adjusting seat board height, in the prior art about this
The mechanism that class adjusts height is many kinds of, various informative；It wherein, is exactly to be set between seat board and pedestal with most common structure
Set cylinder, so people sit on seat board after can change seat board height, this kind of automatic liter automatically according to the weight of people
The security risk for dropping chair is larger, is easy to induce seat board due to cylinder aging and pedestal is popped out and even burst, and then to multiplying
Seat personnel cause personal injury；In addition, realizing the height of seat board also by transmission mechanism is arranged between seat board and pedestal
It adjusts, the automatic lifting chair of the type is often since structure is complicated and causes to adjust inconvenience for transmission mechanism.Generally speaking, existing
Have the automatic lifting chair in technology it is generally existing structure is complicated, safety coefficient not enough and the lower deficiency of bearing capacity.
Summary of the invention
The technical problem to be solved by the present invention is to overcome existing technological deficiency, it is simple to provide a kind of structure, safety coefficient
It is improved the automatic lifting chair high with bearing capacity.
The technical solution of the invention is as follows, provides a kind of automatic lifting chair having following structure：Including pedestal and use
In the support rod connecting with seat board, support rod is slidably connected on the base along the vertical direction, is equipped in pedestal and slides for support rod
Cavity, cavity inner wall is equipped with annular protrusion, and cavity is divided into upper chamber and lower chambers by annular protrusion, and annular protrusion is equipped with
The through-hole passed through for support rod；Support rod lower end is rotatably connected to wobble plate by the first hinge joint, and lower chambers bottom is in wobble plate two
End be respectively provided with and wobble plate push against or be detached from the first block and the second block, wobble plate both ends pass through respectively the first tension spring,
Second tension spring is connect with pedestal, and the first tension spring and the second tension spring stiffness factor differ, close to the small side of stiffness factor on support rod
Equipped with the bayonet lock for pushing against or being detached from wobble plate；When wobble plate and bayonet lock are detached from, wobble plate can not pass through through-hole and enter upper chamber；
When wobble plate and bayonet lock push against, wobble plate can pass through through-hole and enter upper chamber；It slidably connects on annular protrusion and to attract each other
First sliding block and the second sliding block, the first sliding block and the second sliding block are located at support rod two sides, the close big side of stiffness factor on pedestal
The first straight line rack gear for pushing against or being detached from wobble plate is slidably connected, slidably connects second straight line rack gear on pedestal, the
One linear gear rack is connect with second straight line rack gear by gear assembly, and second straight line rack gear and the second sliding block are pushed against or be detached from, the
The distance of one linear gear rack to support rod is less than second straight line rack gear to the distance of support rod, between first straight line rack gear and pedestal
It is connected by reset assembly, the first sliding block is connect by limit assembly with pedestal；Support rod is equipped with for pushing the first sliding block
With the second sliding block simultaneously far from the device for spreading of support rod.
Preferably as one kind of the invention, the first tension spring stiffness factor is less than the second tension spring stiffness factor, the first tension spring with
Second tension spring is symmetrically distributed in the first hinge joint two sides.
Preferably as one kind of the invention, the first sliding block and the second sliding block to attract each other is slidably connected on annular protrusion
Refer to, the first sliding block is equipped with the first magnet, and the second sliding block is equipped with the second magnet for attracting each other with the first magnet；The
One sliding block and the second sliding block are symmetrically distributed in support rod two sides, and the first sliding block is slidably connected on annular protrusion by dovetail groove,
Second sliding block is slidably connected on annular protrusion by dovetail groove.
As an improvement of the present invention, first straight line rack gear is connect by gear assembly with second straight line rack gear and is referred to,
Intermeshing first gear and second gear, first gear and first straight line rack gear engaged transmission are rotatably connected on pedestal,
Second gear and second straight line rack gear engaged transmission.
As an improvement of the present invention, it is connected between first straight line rack gear and pedestal by reset assembly, is set on pedestal
There is the first chamber for first straight line rack gear and the sliding of second straight line rack gear, first straight line rack gear is slidably connected at by dovetail groove
On pedestal, second straight line rack gear is slidably connected on the base by dovetail groove, and first straight line rack gear is equipped with the first limited block, the
The second limited block for pushing against or being detached from the first limited block is equipped in one chamber, the second limited block is located under the first limited block
Side is equipped with cover board above first chamber, is equipped between cover board and first straight line rack gear for pushing the first limited block to be resisted against the
The first pressure spring on two limited blocks, first pressure spring one end are connect with cover board, and the other end is connect with the first limited block, the first limited block
Between the first pressure spring and the second limited block；The for pushing against or being detached from second straight line rack gear is equipped with above second sliding block
Two protrusions.
As an improvement of the present invention, first straight line rack movement direction is parallel with the support rod direction of motion, and first is straight
Line rack gear is parallel with second straight line rack movement direction.
As an improvement of the present invention, the first sliding block is connect with pedestal by limit assembly and is referred to, the company of sliding on pedestal
It is connected to gag lever post, the gag lever post direction of motion is parallel with the support rod direction of motion, the first stop collar is equipped in the middle part of gag lever post, on pedestal
Equipped with the second pilot hole slided for gag lever post and for the second chamber of the first stop collar sliding, pedestal is below the first stop collar
Equipped with the second stop collar for pushing against or being detached from the first stop collar, it is socketed on gag lever post for pushing the first stop collar to support
The second pressure spring on the second stop collar is leaned against, second pressure spring one end and the first stop collar push against, the other end and second chamber inner wall
It pushes against；The first protrusion is equipped with above first sliding block, gag lever post lower end is equipped with the arc for pushing against or being detached from the first protrusion
Plush copper.
As an improvement of the present invention, support rod is equipped with for pushing the first sliding block and the second sliding block simultaneously far from branch
The device for spreading of strut refers to, reset push rod is slidably connected on support rod, resets pushrod movement direction and support rod movement side
To parallel；It resets and is equipped with third stop collar in the middle part of push rod, support rod is equipped with the first pilot hole and confession for resetting push rod sliding
The third chamber of third stop collar sliding, the first pilot hole and third chamber reset and are socketed with third pressure spring on push rod, the
Three pressure spring one end and third stop collar push against, and the other end and third chamber inner wall push against；It is hinged by second to reset push rod lower end
Point is rotatably connected to the first release link and the second release link, and support rod is equipped with and supports respectively with the first release link, the second release link
The first straight pin, the second straight pin tight or be detached from, the first release link are connect with the second release link by third tension spring.
As an improvement of the present invention, the first release link and the second release link are symmetrically distributed in support rod two sides, and first
Release link and the second release link are in splayed structure, and third tension spring one end and the first release link are rotatablely connected, the other end and second
Release link rotation connection, the first straight pin and the second straight pin are in the gap between the first release link and the second release link.
After using the above structure, a kind of automatic lifting chair of the present invention compared with prior art, put by support rod lower end of the present invention
Plate initially rests at the first stop location of lower chambers, when needing the seat board on support rod promoting a height, it is only necessary to draw
Dynamic support rod increases, during wobble plate and the first block, the second block progressively disengage, due to the first tension spring, the second tension spring
The pulling force at wobble plate both ends is differed, then wobble plate will rotate around the first hinge joint, until wobble plate is resisted against on bayonet lock
Until；With the raising of support rod, inclined wobble plate can pass through the through-hole on annular protrusion and enter in upper chamber；
When wobble plate one end is resisted against epicoele chamber interior walls, wobble plate can be inverted around the first hinge joint, until wobble plate completely and upper chamber
Inner wall fitting, and wobble plate will push the raising of first straight line rack gear in upper chamber's reversion process, the of first straight line upper end of the rack
One limited block compresses the first pressure spring after being detached from the second limited block, and first straight line rack gear is by engaging with first gear to drive
Second gear rotation, second gear is by driving the raising of second straight line rack gear, Jin Er with second straight line rack gear engaged transmission
Two linear gear rack lower ends can release the constraint to the second protrusion on the second sliding block, and the second sliding block is attracted masterpiece by the first sliding block
It is slided with and towards support rod direction, until the second sliding block and the abutting of wobble plate end；In such event, the first sliding block and second is slided
Spacing between block reduces；Furtherly, the electromagnetic force on the first sliding block on the first magnet and the second sliding block between the second magnet
Become larger, and then first the first protrusion of upper end of slide block can overcome the constraint of gag lever post lower end arc plush copper and slide towards support rod direction
Dynamic, i.e. the second sliding block can successively be gathered towards support rod direction with the first sliding block, and realize wobble plate lower end and the first sliding block, second
The movement that sliding block upper surface pushes against；It generally speaking, can be by the wobble plate of support rod lower end from the first block by drawing high support rod
It is promoted to the height of the first sliding block, and support rod can be applied to wobble plate and the first sliding block, the by the gravity of vertical direction
On two slider contact surfaces, so, the contact area for bearing gravity is expanded, and then improves the carrying energy of seat
Power, also improves the safety coefficient of seat, mainly operates very easy, it is only necessary to directly raise support rod.To sum up institute
It states, the present invention provides that a kind of structure is simple, and safety coefficient is improved the automatic lifting chair high with bearing capacity.
Detailed description of the invention
Fig. 1 is the schematic diagram of automatic lifting chair of the present invention.
Fig. 2 is that wobble plate is resisted against the state diagram on bayonet lock in the present invention.
Fig. 3 touches state diagram when epicoele chamber interior walls for wobble plate left part in the present invention.
Fig. 4 is bonded for wobble plate in the present invention with epicoele chamber interior walls, and table on wobble plate lower surface and the first sliding block, the second sliding block
State diagram when face pushes against.
Fig. 5 is the second sliding block constraint relief in the present invention, and the first sliding block is also limited the state diagram that bar blocks.
Fig. 6 is released from the state diagram after constraint with wobble plate cooperation for the first sliding block of the invention, the second sliding block.
Fig. 7 is the structural schematic diagram for resetting push rod in the present invention on support rod.
As shown in the figure：1, upper chamber, 2, lower chambers, 3, first straight line rack gear, 4, second straight line rack gear, the 5, first sliding block,
6, the second sliding block, 7, pedestal, 8, support rod, 9, annular protrusion, 10, through-hole, the 11, first hinge joint, 12, wobble plate, 13, first gear
Block, the 14, second block, the 15, first tension spring, the 16, second tension spring, 17, bayonet lock, 18, first gear, 19, second gear, 20,
One chamber, the 21, first limited block, the 22, second limited block, 23, cover board, the 24, first pressure spring, the 25, second protrusion, 26, gag lever post,
27, the first stop collar, 28, second chamber, the 29, second pilot hole, the 30, second stop collar, the 31, second pressure spring, 32, first is convex
It rises, 33, arc plush copper, 34, reset push rod, 35, third stop collar, the 36, first pilot hole, 37, third chamber, 38, third pressure
Spring, the 39, second hinge joint, the 40, first release link, the 41, second release link, the 42, first straight pin, the 43, second straight pin, 44,
Third tension spring.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
As shown, automatic lifting chair of the present invention includes the pedestal 7 being placed on the ground and the branch for connecting with seat board
Strut 8, support rod 8 are slidably connected at along the vertical direction on pedestal 7, idler wheel can be rotatably connected to below pedestal 7, and then conveniently
Seat moves on the ground；The cavity slided for support rod 8 is equipped in pedestal 7, cavity inner wall is equipped with annular protrusion 9, convex annular
Playing 9, local stress is excessive and cracking phenomena occurs with the settable reinforcing rib of cavity inner wall intersection to prevent, and annular protrusion 9 will be empty
Chamber is divided into upper chamber 1 and lower chambers 2, and annular protrusion 9 is equipped with the through-hole 10 passed through for support rod 8；8 lower end of support rod passes through
First hinge joint 11 is rotatably connected to wobble plate 12, and 2 bottom of lower chambers is respectively provided at 12 both ends of wobble plate and pushes against with wobble plate 12
Or the first block 13 and the second block 14 being detached from, 12 both ends of wobble plate pass through the first tension spring 15, the second tension spring 16 and pedestal 7 respectively
Connection, the first tension spring 15 and 16 stiffness factor of the second tension spring differ, on support rod 8 close to the small side of stiffness factor equipped with for
The bayonet lock 17 that wobble plate 12 is pushed against or is detached from, that is to say, that the first hinge joint 11 position to the left is arranged in bayonet lock 17；When wobble plate 12
When being detached from bayonet lock 17, wobble plate 12 can not pass through through-hole 10 and enter upper chamber 1；When wobble plate 12 and bayonet lock 17 push against, wobble plate 12
Through-hole 10 can be passed through and enter upper chamber 1；The first sliding block 5 and the second sliding block to attract each other is slidably connected on annular protrusion 9
6, the first sliding block 5 and the second sliding block 6 are located at 8 two sides of support rod, slidably connect and are used for close to the big side of stiffness factor on pedestal 7
The first straight line rack gear 3 for pushing against or being detached from wobble plate 12, slidably connects second straight line rack gear 4, first straight line rack gear on pedestal 7
3 are connect with second straight line rack gear 4 by gear assembly, and second straight line rack gear 4 and the second sliding block 6 are pushed against or be detached from, first straight line
The distance of rack gear 3 to support rod 8 is less than the distance that second straight line rack gear 4 arrives support rod 8, between first straight line rack gear 3 and pedestal 7
It is connected by reset assembly, the first sliding block 5 is connect by limit assembly with pedestal 7；Support rod 8 is equipped with for pushing first to slide
The device for spreading of block 5 and the second sliding block 6 simultaneously far from support rod 8.
First tension spring, 15 stiffness factor symmetrically divides less than 16 stiffness factor of the second tension spring, the first tension spring 15 and the second tension spring 16
Cloth is in 11 two sides of the first hinge joint；That is, the first tension spring 15 can take the lead in being supportted after wobble plate 12 is supported bar 8 and raises
It opens, the second tension spring 16 can keep original shape；Until wobble plate 12 is resisted against bayonet lock 17 on support rod 8, the second tension spring 16
Also it can gradually be strutted, and then keep wobble plate 12 inclined, as shown in Figure 2；Once wobble plate 12 is inclined, put
Projection of the plate 12 from left part to right part in the horizontal direction is shortened, and then can be convenient wobble plate 12 across annular protrusion 9
Through-hole 10 and enter upper chamber 1.Herein, annular protrusion 9 not only plays the role of a segmentation chamber, and also acts as one
The effect of a carrying, because annular protrusion 9 improves a benchmark to the sliding of the first sliding block 5 and the second sliding block 6, and subsequent
The gravity born on support rod 8 can also act on annular protrusion 9 indirectly by the first sliding block 5 and the second sliding block 6.It is so-called
Stiffness factor refer to the size of produced elastic force when spring unit deformation amount, can be indicated with k；K value is bigger, illustrates deformation list
The power that bit length needs is bigger；Stiffness factor is also known as stiffness coefficient or the coefficient of stiffiness.
The first sliding block 5 to attract each other is slidably connected on annular protrusion 9 to refer to the second sliding block 6, is set on the first sliding block 5
There is the first magnet, the second sliding block 6 is equipped with the second magnet for attracting each other with the first magnet；First sliding block 5 and second is sliding
Block 6 is symmetrically distributed in 8 two sides of support rod, and the first sliding block 5 is slidably connected on annular protrusion 9 by dovetail groove, and the second sliding block 6 is logical
Dovetail groove is crossed to be slidably connected on annular protrusion 9.By the way that the first magnet is arranged on the first sliding block 5, is arranged on the second sliding block 6
Adjust automatically spacing between the first sliding block 5 and the second sliding block 6 may be implemented in two magnet；Specifically, when second straight line rack gear
After 4 release to the constraint of the second protrusion 25 on the second sliding block 6, second magnet is by the first sliding block 5 first on the second sliding block 6
The attraction of magnet acts on and takes the lead in sliding to the left, until the second sliding block 6 is resisted against 12 right part of wobble plate；So,
Spacing between first sliding block 5 and the second sliding block 6 reduces, i.e. the second magnet on the first magnet and the second sliding block 6 on the first sliding block 5
Spacing reduce, according to Coulomb's law it is known that：Interaction force in vacuum between two static point charges is with them
The quantity of electric charge product it is directly proportional, the quadratic power at a distance from them is inversely proportional, and the direction of active force is on their line, together
Name charge is mutually exclusive, and different name charge attracts each other；Like the pole N on magnet attracts each other with the pole S, and the pole N and N are extremely mutual
Repel；Thus, once, the spacing of second magnet reduces on first magnet and the second sliding block 6 on the first sliding block 5, then first
Attraction between magnet and the second magnet can become larger, can not be after since the second magnet has been subjected to the constraint of 12 right part of wobble plate
It is continuous to slide to the left, then the first magnet by bigger attraction can overcome 26 lower end arc plush copper 33 of gag lever post constraint and
It then slides to the right, until the first sliding block 5 is contacted with 12 left part of wobble plate, here it is state shown in Fig. 4, wobble plates 12 or so two
End is successively resisted against the first sliding block 5, on the second sliding block 6.
First straight line rack gear 3, which is connect with second straight line rack gear 4 by gear assembly, to be referred to, is rotatably connected to phase on pedestal 7
The first gear 18 that mutually engages and second gear 19,3 engaged transmission of first gear 18 and first straight line rack gear, second gear 19 with
4 engaged transmission of second straight line rack gear.
Between first straight line rack gear 3 and pedestal 7 by reset assembly connect, pedestal 7 be equipped with for first straight line rack gear 3 with
The first chamber 20 that second straight line rack gear 4 slides, first straight line rack gear 3 are slidably connected on pedestal 7 by dovetail groove, and second is straight
Line rack gear 4 is slidably connected on pedestal 7 by dovetail groove, and first straight line rack gear 3 is equipped with the first limited block 21, first chamber 20
Interior the second limited block 22 being equipped with for pushing against or being detached from the first limited block 21, the second limited block 22 are located at the first limited block 21
Lower section is equipped with cover board 23 above first chamber 20, is equipped between cover board 23 and first straight line rack gear 3 for pushing the first limited block
21 are resisted against the first pressure spring 24 on the second limited block 22, and 24 one end of the first pressure spring is connect with cover board 23, the other end and the first limit
Position block 21 connects, and the first limited block 21 is between the first pressure spring 24 and the second limited block 22；First on first straight line rack gear 3
Limited block 21 can be resisted against on the second limited block 22 under the effect of 24 pressure of the first pressure spring；It is equipped with and is used for above second sliding block 6
The second protrusion 25 for pushing against or being detached from second straight line rack gear 4.
3 direction of motion of first straight line rack gear is parallel with 8 direction of motion of support rod, first straight line rack gear 3 and second straight line tooth
4 direction of motion of item is parallel, may insure that second straight line rack gear 4 is gone up and down along the vertical direction in this way.
First sliding block 5, which is connect by limit assembly with pedestal 7, to be referred to, gag lever post 26, gag lever post are slidably connected on pedestal 7
26 directions of motion are parallel with 8 direction of motion of support rod, and the first stop collar 27 is equipped in the middle part of gag lever post 26, and pedestal 7 is equipped with for limit
The second pilot hole 29 that position bar 26 slides and the second chamber 28 for the sliding of the first stop collar 27, pedestal 7 is in the first stop collar 27
Lower section is equipped with the second stop collar 30 for pushing against or being detached from the first stop collar 27, is socketed on gag lever post 26 for pushing the
One stop collar 27 is resisted against the second pressure spring 31 on the second stop collar 30, and 31 one end of the second pressure spring and the first stop collar 27 push against,
The other end and 28 inner wall of second chamber push against；The first protrusion 32 is equipped with above first sliding block 5,26 lower end of gag lever post is equipped with and is used for
The arc plush copper 33 for pushing against or being detached from the first protrusion 32 can be convenient the first protrusion 32 by arc plush copper 33 and push gag lever post
26 make lifting carriage in the second pilot hole 29, so that the first protrusion 32 is more smooth with the transmission of gag lever post 26.Wherein, second
The setting of pressure spring 31 can push the decline of gag lever post 26 to reset, that is to say, that push 26 rising of gag lever post in the first protrusion 32
Afterwards, first stop collar 25 is acted on by the pressure of the second pressure spring 29 on gag lever post 26 and automatic descending is resisted against the second stop collar 30
On.
Support rod 8 is equipped with for pushing device for spreading of first sliding block 5 with the second sliding block 6 simultaneously far from support rod 8 to be
Refer to, slidably connected on support rod 8 and reset push rod 34, it is parallel with 8 direction of motion of support rod to reset 34 direction of motion of push rod；It resets
It is equipped with third stop collar 35 in the middle part of push rod 34, support rod 8 is equipped with for resetting the first pilot hole 36 that push rod 34 slides and for the
The third chamber 37 of three stop collars 35 sliding, the first pilot hole 36 is connected to third chamber 37, and the is socketed on reset push rod 34
Three pressure springs 38,38 one end of third pressure spring and third stop collar 35 push against, and the other end and 37 inner wall of third chamber push against；In third pressure
Under the pressure effect of spring 38, third stop collar 35 can voluntarily be resisted against the upper limit position of third chamber 37；It resets under push rod 34
End is rotatably connected to the first release link 40 and the second release link 41 by the second hinge joint 39, and support rod 8 is equipped with respectively with the
The first straight pin 42, the second straight pin 43 that one release link 40, the second release link 41 are pushed against or be detached from, the first release link 40 and the
Two release links 41 are connected by third tension spring 44, the pulling force effect of the first release link 40 and the second release link 41 in third tension spring 44
Under bear against on the first straight pin 42 and the second straight pin 43.It can be rotated on first straight pin 42 and the second straight pin 43
It is connected with idler wheel, with reduction and frictional force when the first release link 40, the transmission of the second release link 41, so that transmission is more flat
It is suitable.
First release link 40 and the second release link 41 are symmetrically distributed in 8 two sides of support rod, and the first release link 40 and second is multiple
Position bar 41 is in splayed structure, as shown in fig. 7, the first release link 40 and the second release link 41 are all heeling condition, third tension spring
44 one end and the first release link 40 are rotatablely connected, and the other end and the second release link 41 are rotatablely connected, the first straight pin 42 and second
Straight pin 43 is in the gap between the first release link 40 and the second release link 41.First release link 40 and the second release link 41
It is rotated simultaneously around the second hinge joint 39, but the rotation direction of the two is opposite.
Working principle：As shown, the wobble plate 12 of 8 lower end of support rod is located in the lower chambers 2 of pedestal 7,12 liang of wobble plate
End is born against on the first block 13 and the second block 14, the first tension spring 15 and the second tension spring 16 all there are no deforming,
First sliding block 5 and the second sliding block 6 are located at 8 two sides of support rod, and the first sliding block 5 and the second sliding block 6 are located at support rod 8
Distal end, under state as shown in Figure 1；
When needing to raise 8 upper end seat board of support rod, operator can lift support rod 8 by hand-held supports bar 8,
8 lower end wobble plate 12 of support rod can be progressively disengaged from the first block 13, the second block 14；In the raised just section of wobble plate 12, due to
The stiffness factor of first tension spring 15 is less than 16 stiffness factor of the second tension spring, then the first tension spring 15 takes the lead in be softened, second is drawn
Spring 16 keeps original length, i.e. wobble plate 12 is rotated clockwise around the first hinge joint 11；Until wobble plate 12 is resisted against on support rod 8
Bayonet lock 17 until, in subsequent 8 uphill process of support rod, the second tension spring 16 also can be pulled gradually by wobble plate 12 and be strutted；One
Denier wobble plate 12 is resisted against on bayonet lock 17, then wobble plate 12 will turn to heeling condition from original horizontality, wobble plate 12 is in
The state of existing right low left high, so the projected length of 12 left part of wobble plate to right part in the horizontal direction shortens, wobble plate
12 through-holes 10 that can pass through annular protrusion 9 with the raising of support rod 8 enter in upper chamber 1, as shown in Figure 2；
After wobble plate 12 enters upper chamber 1, the left part of wobble plate 12 can take the lead in pushing against with 1 upper inner wall of upper chamber, pendulum
12 left part of plate is constrained by 1 inner wall of upper chamber and inverts counterclockwise around the first hinge joint 11, and wobble plate 12 and bayonet lock 17 are detached from,
Until wobble plate 12 is bonded completely with 1 inner wall of upper chamber；Wobble plate 12 is in upper chamber 1 in reversion process, 12 right half part meeting of wobble plate
It is contacted with 3 lower end of first straight line rack gear and first straight line rack gear 3 is pushed to rise, first straight line rack gear 3 passes through first gear 18
Engaged transmission is to drive second gear 19 to rotate, and second gear 19 is by engaging with second straight line rack gear 4 to drive second straight line
Rack gear 4 increases, so that the second protrusion 25 on 4 lower end of second straight line rack gear and the second sliding block 6 is detached from, that is, releases second
Constraint of the linear gear rack 4 to the second protrusion 25 on the second sliding block 6；So, second magnet is sliding by first on the second sliding block 6
The attraction of first magnet on block 5 and slide to the left, until the second sliding block 6 is resisted against 12 right part of wobble plate；
Subsequently, as the first sliding block 5 and 6 spacing of the second sliding block reduce, then the spacing of the first magnet and the second magnet
It can reduce；According to Coulomb's law it is found that the attraction between the first magnet and the second magnet can become larger, and then on the first sliding block 5
The first protrusion 32 can overcome the constraint of 26 lower end arc plush copper 33 of gag lever post and slide to the right, i.e., gag lever post 26 can slide up
Dynamic and compress the second pressure spring 31, until the first sliding block 5 is resisted against 12 left part of wobble plate, 12 both ends of wobble plate at this time are respectively with the
One sliding block, 5 upper surface, 6 upper surface of the second sliding block push against, that is to say, that the second sliding block 6 and the first sliding block 5 successively with wobble plate 12 into
Row pushes against, and wobble plate 12 is improved from the height value of the first block 13 to the height value of the first sliding block 5, so support rod 8 it is whole and
Seat board on support rod 8 has all been enhanced corresponding height value, as shown in Figure 4；
When taking in the seat board of 8 upper end of support rod, the gravity that support rod 8 is subject to can act on 12 both ends of wobble plate difference
With 5 upper surface of the first sliding block, 6 upper surface of the second sliding block contact surface on；And when needing to decline support rod 8, it is only necessary to push
It resets push rod 34 and declines so that resetting push rod 34, reset the second hinge joint 39 decline of 34 lower end of push rod, reset 34 meeting of push rod
Push the first release link 40 to rotate simultaneously with the second release link 41, and the first release link 40 against the first straight pin 42 rotate with
The first sliding block 5 is pushed to slide reset to the left, the second release link 41 is rotated against the second straight pin 43 to push the second sliding block 6 to the right
Sliding resets, and third tension spring 44 is softened；And after the first sliding block 5, the second sliding block 6 are detached from wobble plate 12, due to the first drawing
The pulling force effect of spring 15, the second tension spring 16, due to rotation, inclined decline resets wobble plate 12, until restoring to Fig. 1 shape
State.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit protection scope of the present invention.It is all in this hair
Within bright claim, made any modification, equivalent replacement and improvement etc., should be included in protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of automatic lifting chair, it includes pedestal (7) and the support rod (8) for connecting with seat board, and support rod (8) is along vertical
Direction is slidably connected on pedestal (7), it is characterised in that：The cavity slided for support rod (8) is equipped in pedestal (7), in cavity
Wall is equipped with annular protrusion (9), and cavity is divided into upper chamber (1) and lower chambers (2) by annular protrusion (9), and annular protrusion is set on (9)
There is the through-hole (10) passed through for support rod (8)；Support rod (8) lower end is rotatably connected to wobble plate by the first hinge joint (11)
(12), lower chambers (2) bottom is respectively provided with the first block for pushing against or being detached from wobble plate (12) at wobble plate (12) both ends
(13) with the second block (14), wobble plate (12) both ends pass through the first tension spring (15), the second tension spring (16) and pedestal (7) respectively and connect
It connects, the first tension spring (15) and the second tension spring (16) stiffness factor differ, and are equipped with and use close to the small side of stiffness factor on support rod (8)
In the bayonet lock (17) for pushing against or being detached from wobble plate (12)；When wobble plate (12) and bayonet lock (17) are detached from, wobble plate (12) can not be passed through
Through-hole (10) enters upper chamber (1)；When wobble plate (12) and bayonet lock (17) push against, wobble plate (12) can pass through through-hole (10) and enter
Upper chamber (1)；The first sliding block (5) to attract each other and the second sliding block (6), the first sliding block are slidably connected on annular protrusion (9)
(5) be located at support rod (8) two sides with the second sliding block (6), on pedestal (7) the close big side of stiffness factor slidably connect for
Wobble plate (12) pushes against or the first straight line rack gear (3) of disengaging, slidably connects second straight line rack gear (4) on pedestal (7), and first is straight
Line rack gear (3) is connect with second straight line rack gear (4) by gear assembly, second straight line rack gear (4) and the second sliding block (6) push against or
It being detached from, the distance of first straight line rack gear (3) to support rod (8) is less than the distance that second straight line rack gear (4) arrive support rod (8), the
It is connect between one linear gear rack (3) and pedestal (7) by reset assembly, the first sliding block (5) is connected by limit assembly and pedestal (7)
It connects；Support rod (8) is equipped with for pushing the first sliding block (5) and the second sliding block (6) to strut dress far from support rod (8) simultaneously
It sets.
2. automatic lifting chair according to claim 1, it is characterised in that：First tension spring (15) stiffness factor is drawn less than second
Spring (16) stiffness factor, the first tension spring (15) and the second tension spring (16) are symmetrically distributed in the first hinge joint (11) two sides.
3. automatic lifting chair according to claim 1, it is characterised in that：Annular protrusion slidably connects mutual suction on (9)
The first sliding block (5) drawn refers to that the first sliding block (5) is equipped with the first magnet with the second sliding block (6), and the second sliding block (6) is equipped with
The second magnet for attracting each other with the first magnet；First sliding block (5) and the second sliding block (6) are symmetrically distributed in support rod (8)
Two sides, the first sliding block (5) are slidably connected on annular protrusion (9) by dovetail groove, and the second sliding block (6) is slided by dovetail groove to be connected
It connects on annular protrusion (9).
4. automatic lifting chair according to claim 1, it is characterised in that：First straight line rack gear (3) and second straight line rack gear
(4) referred to by gear assembly connection, intermeshing first gear (18) and second gear are rotatably connected on pedestal (7)
(19), first gear (18) and first straight line rack gear (3) engaged transmission, second gear (19) are engaged with second straight line rack gear (4)
Transmission.
5. automatic lifting chair according to claim 4, it is characterised in that：Lead between first straight line rack gear (3) and pedestal (7)
Reset assembly connection is crossed, pedestal (7) is equipped with the first chamber for first straight line rack gear (3) and second straight line rack gear (4) sliding
(20), first straight line rack gear (3) is slidably connected on pedestal (7) by dovetail groove, and second straight line rack gear (4) is sliding by dovetail groove
Dynamic to be connected on pedestal (7), first straight line rack gear (3) is equipped with the first limited block (21), is equipped with and is used in first chamber (20)
The second limited block (22) for pushing against or being detached from the first limited block (21), the second limited block (22) are located under the first limited block (21)
Side, first chamber (20) top are equipped with cover board (23), are equipped between cover board (23) and first straight line rack gear (3) for pushing first
Limited block (21) is resisted against the first pressure spring (24) on the second limited block (22), and the first pressure spring (24) one end and cover board (23) are even
It connects, the other end is connect with the first limited block (21), and the first limited block (21) is located at the first pressure spring (24) and the second limited block (22)
Between；Second raised (25) for pushing against or being detached from second straight line rack gear (4) are equipped with above second sliding block (6).
6. automatic lifting chair according to claim 5, it is characterised in that：First straight line rack gear (3) direction of motion and support
Bar (8) direction of motion is parallel, and first straight line rack gear (3) is parallel with second straight line rack gear (4) direction of motion.
7. automatic lifting chair according to claim 1, it is characterised in that：First sliding block (5) passes through limit assembly and pedestal
(7) connection refers to, slidably connects on pedestal (7) gag lever post (26), gag lever post (26) direction of motion and support rod (8) movement side
To parallel, the first stop collar (27) are equipped in the middle part of gag lever post (26), pedestal (7) is equipped with and leads for gag lever post (26) are slided second
To hole (29) and the second chamber (28) slided for the first stop collar (27), pedestal (7) is equipped with below the first stop collar (27)
For the second stop collar (30) with the first stop collar (27) abutting or disengaging, it is socketed on gag lever post (26) for pushing first
Stop collar (27) is resisted against the second pressure spring (31) on the second stop collar (30), the second pressure spring (31) one end and the first stop collar
(27) it pushes against, the other end and second chamber (28) inner wall push against；First raised (32), gag lever post are equipped with above first sliding block (5)
(26) lower end is equipped with the arc plush copper (33) for pushing against or being detached from first raised (32).
8. automatic lifting chair according to claim 1, it is characterised in that：Support rod (8) is equipped with for pushing first to slide
The device for spreading far from support rod (8) refers to block (5) simultaneously with the second sliding block (6), slidably connects reset on support rod (8) and pushes away
It is parallel with support rod (8) direction of motion to reset push rod (34) direction of motion for bar (34)；It resets and is equipped with third limit in the middle part of push rod (34)
Position ring (35), support rod (8) are equipped with for the first pilot hole (36) of reset push rod (34) sliding and for third stop collar (35)
The third chamber (37) of sliding, the first pilot hole (36) are connected to third chamber (37), are resetted and are socketed with third on push rod (34)
Pressure spring (38), third pressure spring (38) one end and third stop collar (35) push against, and the other end and third chamber (37) inner wall push against；It is multiple
Position push rod (34) lower end is rotatably connected to the first release link (40) and the second release link (41) by the second hinge joint (39), supports
Bar (8) is equipped with the first straight pin (42) for pushing against or being detached from the first release link (40), the second release link (41) respectively, second
Straight pin (43), the first release link (40) are connect with the second release link (41) by third tension spring (44).
9. automatic lifting chair according to claim 8, it is characterised in that：First release link (40) and the second release link (41)
Support rod (8) two sides are symmetrically distributed in, the first release link (40) and the second release link (41) are in splayed structure, third tension spring
(44) one end and the first release link (40) are rotatablely connected, and the other end and the second release link (41) are rotatablely connected, the first straight pin
(42) and the second straight pin (43) is in gap between the first release link (40) and the second release link (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568069.2A CN108851690B (en) | 2018-06-05 | 2018-06-05 | Automatic lifting chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568069.2A CN108851690B (en) | 2018-06-05 | 2018-06-05 | Automatic lifting chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108851690A true CN108851690A (en) | 2018-11-23 |
| CN108851690B CN108851690B (en) | 2020-06-12 |
Family
ID=64335152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810568069.2A Active CN108851690B (en) | 2018-06-05 | 2018-06-05 | Automatic lifting chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108851690B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353158A (en) * | 2020-12-03 | 2021-02-12 | 盐城盐西幸福产业发展有限公司 | High-stability multifunctional lifting chair for old people |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB771392A (en) * | 1954-02-26 | 1957-04-03 | Usines Des Ressorts Du Nord | Improvements in and relating to a damping device for a suspension and suspension incorporating this device |
| SU1600083A1 (en) * | 1988-08-15 | 1995-09-20 | Свердловский горный институт им.В.В.Вахрушева | Aerator of pneumatic floatation machine |
| CN2626334Y (en) * | 2003-03-30 | 2004-07-21 | 安吉县强龙钢塑家具有限公司 | Chair with liftable headrest |
| CN101423076A (en) * | 2007-11-02 | 2009-05-06 | 江南大学 | Expansion muscle driven double-flexibility joint bouncing robot |
| CN201234758Y (en) * | 2008-08-06 | 2009-05-13 | 上海震旦家具有限公司 | Lift headrest structure of office chair |
| WO2013070693A1 (en) * | 2011-11-08 | 2013-05-16 | Hilton Randall D | Systems and methods for supporting mattresses |
| CN204336229U (en) * | 2014-12-23 | 2015-05-20 | 上海市闸北区中小学科技指导站 | Telescopic chair |
| CN206633871U (en) * | 2017-03-22 | 2017-11-14 | 重庆延锋安道拓汽车部件系统有限公司 | Chair headrest lifting locking mechanism |
| CN107713501A (en) * | 2017-11-20 | 2018-02-23 | 宁波卫生职业技术学院 | Improve the preventing falling elevated bed of pedal |
| CN208262959U (en) * | 2018-06-08 | 2018-12-21 | 甘之舟 | A kind of safe paper cutters |
| CN109883819A (en) * | 2019-03-05 | 2019-06-14 | 太原理工大学 | The cohesive force dynamic Hubbing method and built-up jig of fiber cement composites |
-
2018
- 2018-06-05 CN CN201810568069.2A patent/CN108851690B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB771392A (en) * | 1954-02-26 | 1957-04-03 | Usines Des Ressorts Du Nord | Improvements in and relating to a damping device for a suspension and suspension incorporating this device |
| SU1600083A1 (en) * | 1988-08-15 | 1995-09-20 | Свердловский горный институт им.В.В.Вахрушева | Aerator of pneumatic floatation machine |
| CN2626334Y (en) * | 2003-03-30 | 2004-07-21 | 安吉县强龙钢塑家具有限公司 | Chair with liftable headrest |
| CN101423076A (en) * | 2007-11-02 | 2009-05-06 | 江南大学 | Expansion muscle driven double-flexibility joint bouncing robot |
| CN201234758Y (en) * | 2008-08-06 | 2009-05-13 | 上海震旦家具有限公司 | Lift headrest structure of office chair |
| WO2013070693A1 (en) * | 2011-11-08 | 2013-05-16 | Hilton Randall D | Systems and methods for supporting mattresses |
| CN204336229U (en) * | 2014-12-23 | 2015-05-20 | 上海市闸北区中小学科技指导站 | Telescopic chair |
| CN206633871U (en) * | 2017-03-22 | 2017-11-14 | 重庆延锋安道拓汽车部件系统有限公司 | Chair headrest lifting locking mechanism |
| CN107713501A (en) * | 2017-11-20 | 2018-02-23 | 宁波卫生职业技术学院 | Improve the preventing falling elevated bed of pedal |
| CN208262959U (en) * | 2018-06-08 | 2018-12-21 | 甘之舟 | A kind of safe paper cutters |
| CN109883819A (en) * | 2019-03-05 | 2019-06-14 | 太原理工大学 | The cohesive force dynamic Hubbing method and built-up jig of fiber cement composites |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112353158A (en) * | 2020-12-03 | 2021-02-12 | 盐城盐西幸福产业发展有限公司 | High-stability multifunctional lifting chair for old people |
| CN112353158B (en) * | 2020-12-03 | 2023-09-08 | 盐城盐西幸福产业发展有限公司 | High-stability multifunctional lifting chair for old people |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108851690B (en) | 2020-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2014004673A (en) | Linkage lift | |
| CN108851690A (en) | Automatic lifting chair | |
| CN105520361A (en) | Elastic pin-braked lifting platform | |
| WO2018116426A1 (en) | Chair | |
| US6361056B1 (en) | Positioning device for a backrest of a stroller | |
| CN108713917A (en) | Intelligent elevated seat | |
| CN213464177U (en) | Lifting table | |
| KR102178480B1 (en) | Chair caster with automatic locking and unlocking structure | |
| CN108669870B (en) | Office chair | |
| CN108720395B (en) | Lifting chair | |
| CN108814064B (en) | Full-automatic lifting seat | |
| CN108552821A (en) | It is a kind of can be to the office chair of thigh support | |
| CN208413592U (en) | A kind of home lift Multifunction armrests | |
| CN209152756U (en) | It is a kind of can be to the office chair of thigh support | |
| CN112890546A (en) | Multifunctional clothes rack | |
| JP2018023569A (en) | Chair | |
| CN212995534U (en) | Executive chair | |
| DE102012203967B4 (en) | Child seat and footrest for it | |
| CN208339269U (en) | The bearing assembly and lying bed of lying bed | |
| CN102188114B (en) | Quick seat height adjusting system | |
| CN201691331U (en) | Elevating table for sitting and standing operations | |
| CN210471570U (en) | Safe lifting seat | |
| KR102420189B1 (en) | Height adjustable table | |
| CN210276526U (en) | Buffer device for legs of office chair | |
| CN208823202U (en) | A kind of puerpera's wheelchair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200519 Address after: 341000 area B, Shilong Industrial Park, Taiwo Township, Nankang District, Ganzhou City, Jiangxi Province Applicant after: Ganzhou City Nankang District Yiquan Furniture Co., Ltd Address before: 317200 20 group 6, East Wang Village, Baihe Town, Tiantai County, Taizhou, Zhejiang Applicant before: Wang Jie |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |