CN107387543A - Automatic drawing back and close mechanism, a kind of support foot rest - Google Patents
Automatic drawing back and close mechanism, a kind of support foot rest Download PDFInfo
- Publication number
- CN107387543A CN107387543A CN201710537904.1A CN201710537904A CN107387543A CN 107387543 A CN107387543 A CN 107387543A CN 201710537904 A CN201710537904 A CN 201710537904A CN 107387543 A CN107387543 A CN 107387543A
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- movable
- cam
- bolster
- fixed
- flanging
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 21
- 230000009471 action Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/005—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles integral with the apparatus or articles to be supported
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/08—Foot or support base
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention discloses automatic drawing back and close mechanism and a kind of support foot rest, the mechanism includes fixed bolster, movable bolster, rotating shaft, movable cam and fixed cam；Movable bolster is connected on fixed bolster by elastic parts；Fixed cam is connected on fixed bolster；After one end of rotating shaft sequentially passes through fixed bolster and fixed cam, it is connected with movable cam, and movable cam can be along the axial movement of rotating shaft；Elastic parts, which acts on movable bolster, can make movable cam and fixed cam male-female engagement；Rotating shaft can make movable cam towards the direction movement away from fixed cam, and act on movable bolster elasticity of compression component.Under the setting of automatic drawing back and close mechanism, support foot rest can bounce back into specific opening angle automatically after use, and postpone can close automatically inside, in this way, then may be such that support foot rest withdrawal work it is more convenient with it is reliable.
Description
Technical field
The present invention relates to electronic equipment machinery technical field, more particularly, to one kind automatic drawing back and close mechanism and one kind
Support foot rest.
Background technology
By taking tablet personal computer as an example, such plane formula electronic equipment can carry with use, through the behaviour of touch control display screen
Make, user directly can carry out the transmission control of various data in panel zone.But tablet personal computer is when in use, otherwise need
With the hands hold, or need to be supported by double knees, this not only easily produces tired sense, the phenomenon for the sliding that is also easy to shake.
To improve foregoing problems, most common mode is to install support foot rest on such plane formula electronic equipment, passes through support foot rest
Support to electronic equipment certain angle, you can carry out more convenient and labour-saving manipulation state.
In the tablet personal computer of existing setting support foot rest, one end of support foot rest generally is pivotally connected to form pivot with tablet personal computer
Positioning end is connect, the other end of support foot rest is then movable force side, and whole foot stool can be developed in zero-bit state and folded in flat board
The back side of computer, in working condition, then it can be pivotally connected positioning end and be raised for action axle center with tablet personal computer in various strut angles
Degree.But during existing support foot rest is withdrawn after use, user whole must pull the foot stool to be folded
The back side of tablet personal computer, so, then more waste time and energy.
The content of the invention
The purpose of the present invention is to overcome the above mentioned problem of prior art, there is provided automatically retracts and close mechanism supports with a kind of
Foot stool, under the setting of automatic drawing back and close mechanism, support foot rest can bounce back into specific opening angle automatically after use,
And postpone can close automatically inside, in this way, then may be such that support foot rest withdrawal work it is more convenient with it is reliable.
The purpose of the present invention is achieved through the following technical solutions：
Automatically retract and close mechanism, including fixed bolster, movable bolster, rotating shaft, movable cam and relative with movable cam
Fixed cam；
Movable bolster is connected on fixed bolster by elastic parts, and movable bolster has been collectively forming behaviour area with fixed bolster
Domain；
Movable cam and fixed cam are located in zone of action, and fixed cam is connected on fixed bolster；
One end of rotating shaft sequentially passes through fixed cam, movable cam and movable bolster, and the both ends of rotating shaft are rotatably arranged on admittedly
Determine on bolster, movable cam is connected with rotating shaft, and movable cam and movable bolster can be along the axial movements of rotating shaft；
Elastic parts, which acts on movable bolster, can make movable cam and fixed cam male-female engagement；Rotating shaft can make movable cam
Towards the direction movement away from fixed cam, and act on movable bolster elasticity of compression component.
In the present invention, by the setting of elastic parts, movable bolster can form the variable work of space size with fixed bolster
Dynamic region, so, can adaptive act cam occur axially to move caused by male-female engagement with fixed cam with axis of rotation
It is dynamic, meanwhile, it can also produce corresponding elastic reset power and enable rotating shaft to produce the rotation that automatically resets to react on movable cam.
The present invention is in zero-bit state, movable cam and fixed cam male-female engagement, and movable cam is located most closely to admittedly
Determine the position of bolster, at this moment, movable bolster is connected in the presence of elastic parts on fixed bolster.When force acts on rotating shaft
During the rotation for making it be relatively fixed bolster generation certain angle, movable cam can follow rotating shaft to rotate together, at this moment, activity
Cam can then move because of its male-female engagement between fixed cam to the direction away from fixed bolster, at this moment, then can cause
Movable bolster elasticity of compression component and formed with counteractive reset force, when exert a force discharge after, the reset force then can be convex to activity
The reset of wheel, which rotates, provides kinetic energy so that rotating shaft can bounce back on specific opening angle or even the position closed automatically.
For ease of realizing automatic rebound work, further, institute of the rotating shaft in specific opening angle position and closing position
Stating movable cam and the fixed cam includes the first convex portion, the second convex portion and the 3rd convex portion, the first convex portion and the second convex portion
Between be provided with the first recess, be provided with the second recess between the second convex portion and the 3rd convex portion, and between each convex portion and recess respectively with
Guiding incline is connected.
In the present invention, each recess and convex portion of movable cam and fixed cam can form the male-female engagement mutually inserted,
The setting of two recesses on movable cam, then it is easy to form the work of rebounding of two particular point of rotation.Each convex portion and recess it
Between be connected respectively with guiding incline, in this way, being easy to implement the rotation work that movable cam is relatively fixed cam.
For the stability of raising activity bolster movement, further, the fixed bolster, which has to fix, holds piece, and piece is held in fixation
One end extend to inner side formed with first end flanging, the fixed other end for holding piece to inner side extension formed with first end flanging
The second relative end flanging；
There is the movable bolster activity to hold piece, and the movable both ends for holding piece are extended to the direction of close first end flanging to be had
Extend flanging, and extend flanging free end laterally be extended have connection flanging；
The elastic parts is provided with two groups, and two elastic parts are located at the second end flanging both sides respectively, and two elastic parts are successively
Movable bolster is connected on fixed bolster through connection flanging and first end flanging, and movable bolster be located at first end flanging with
In region between second end flanging.
In the present invention, fixed hold refers on the inside of piece close to that side of the movable bolster.By first end flanging and
The setting of second end flanging, can the both ends of countershaft positioned, so, can avoid rotating in its rotation, movable cam
Move axially and larger rock occurs during circumferentially rotating.Meanwhile second end flanging movable bolster displacement can also be entered
Row limitation, it is avoided to occur excessively mobile.
To avoid rotating shaft from departing from the second end flanging, further, one end of the rotating shaft sequentially passes through the first end folding
Side, fixed cam, movable cam, activity hold piece and the second end flanging, and the end are provided with annular groove；
Also include clasp, clasp insert in annular groove and with the end face outside of the second end flanging against.
Cooperation between clasp and annular groove can limit the position of rotating shaft, avoid it that axle occurs during circumferentially rotating
To cooperation that is mobile and influenceing movable cam and fix between cam.
To realize the gearing work of movable cam and rotating shaft, further, the rotating shaft includes connecting with the movable cam
The dynamic gearing shaft coordinated.
To realize that elastic parts is acted on the stable resilient support of movable bolster, further, the elastic parts includes
Guide pillar, spring and nut；
The connection flanging is provided with aperture and connects hole more than guide pillar external diameter；
Guide pillar one end is connected on the first end flanging, and the other end of guide pillar, which sequentially passes through, connects hole and spring and nut screw thread company
Connect；
The both ends of spring are respectively acting on nut and connection flanging so that：Connection flanging is resisted against on first end flanging.
Connection flanging is provided with aperture and connects hole more than guide pillar external diameter, and so, movable bolster can be in movable cam and fixation
Moved axially and compression spring formation reset force along guide pillar under male-female engagement between cam.
A kind of support foot rest, including U-shaped part and two as previously described any one automatically retract and close mechanism, the mechanism
In the other end of the rotating shaft be connected with foot stool connector, both ends of the bipod frame connector respectively with U-shaped part are connected.
The present invention by the fixation bolster in two automatic drawing back and close mechanism in use, be fixed on plane formula electronic equipment
Both sides, U-shaped part then may be regarded as supporting part, when acting on U-shaped part, is then provided to the power of axis of rotation, and so, becoming can band
Dynamic movable cam rotates and produced the axial movement for being relatively fixed cam, and then, it may be such that elastic parts forms energy reset activity
Bolster reset force.When exert a force discharge after, the reset force then may act on movable cam make its be reset to specific open position or
It is closing position, so as to so that U-shaped part bounces back into corresponding opening angle position or closing position automatically.
To realize the gearing work between rotating shaft and U-shaped part, further, foot stool company is provided with the foot stool connector
Moving plate, linked slot is offered on foot stool double-action plate；
The rotating shaft includes interlocking the termination bar coordinated with linked slot.
The invention has the advantages that：
1st, in automatic drawing back and close mechanism, by the setting of elastic parts, movable bolster can form space with fixed bolster
The variable zone of action of size, so, can adaptive act cam male-female engagement institute occurs with fixed cam with axis of rotation
Caused axial movement, meanwhile, it can also produce corresponding elastic reset power and to react on movable cam rotating shaft be produced
Automatically reset rotation.
2nd, under the setting of automatic drawing back and close mechanism, support foot rest can bounce back into specific unlatching automatically after use
Angle, and postpone can close automatically inside, in this way, then may be such that support foot rest withdrawal work it is more convenient with it is reliable.
Brief description of the drawings
In order to illustrate more clearly of embodiments of the invention, below by describing what is used required in the embodiment of the present invention
Accompanying drawing is briefly described.It will be apparent that drawings in the following description are only some embodiments described in the present invention, it is right
For those skilled in the art, without creative efforts, it can also be obtained according to following accompanying drawing
Its accompanying drawing.
Fig. 1 is the structural representation of automatic drawing back and one specific embodiment of close mechanism of the present invention；
Fig. 2 is the structural representation of automatic drawing back and one specific embodiment of close mechanism of the present invention；
Fig. 3 is the knot of one specific embodiment of movable cam and fixed cam in automatic drawing back and close mechanism of the present invention
Structure schematic diagram；
Fig. 4 is the structural representation of one specific embodiment of movable cam in automatic drawing back and close mechanism of the present invention；
Fig. 5 is the structural representation that one specific embodiment of cam is fixed in automatic drawing back and close mechanism of the present invention；
Fig. 6 is that the structure of movable cam and fixed cam in 0 ° of angle is shown in automatic drawing back and close mechanism of the present invention
It is intended to；
Fig. 7 is the structure of movable cam and fixed cam in 40 ° of angles in automatic drawing back and close mechanism of the present invention
Schematic diagram；
Fig. 8 is the structure of movable cam and fixed cam in 130 ° of angles in automatic drawing back and close mechanism of the present invention
Schematic diagram；
Fig. 9 is a kind of structural representation of one specific embodiment of support foot rest of the present invention；
Figure 10 is the structural representation of foot stool connection sheet in a kind of support foot rest of the present invention；
Figure 11 is structural representation of the U-shaped part in 0 ° of angle in a kind of support foot rest of the present invention；
Figure 12 is structural representation of the U-shaped part in 40 ° of angles in a kind of support foot rest of the present invention；
Figure 13 is structural representation of the U-shaped part in 130 ° of angles in a kind of support foot rest of the present invention.
Wherein, parts title corresponding to reference is as follows：10th, fixed bolster, 11, fixed hold piece, the 12, second end folding
Side, 13, fixed center hole, 14, positioning hole, 15, spliced eye, 16, first end flanging, 17, joining hole, 18, group contact pin, 19, solid
Determine hole, 20, movable bolster, 21, extension flanging, 22, connection flanging, 23, connect hole, 24, activity hold piece, 25, activity centre hole,
30th, movable cam, the 31, first convex portion, the 32, second convex portion, the 33, the 3rd convex portion, the 34, first recess, the 35, second recess, 40, solid
Determine cam, the 41, first convex portion, the 42, second convex portion, the 43, the 3rd convex portion, the 44, first recess, the 45, second recess, 50, rotating shaft,
51st, annular groove, 52, interlock shaft, 53, termination bar, 54, clasp, 60, foot stool connection sheet, 61, linked slot, the 62, second bolt,
70th, foot stool connector, 80, elastic parts, 81, guide pillar, 82, spring, 83, nut, the 84, first bolt, 90, U-shaped part, 100, flat
Plate computer.
Embodiment
In order that those skilled in the art more fully understands the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention
Clear, complete description is carried out to the technical scheme in the embodiment of the present invention.It will be apparent that embodiment described below is only
It is the part in the embodiment of the present invention, rather than all.The embodiment recorded based on the present invention, those skilled in the art are not
The other all embodiments obtained in the case of paying creative work, in the scope of protection of the invention.
Embodiment 1
As shown in Figures 1 to 8, automatically retract and close mechanism, including fixed bolster 10, movable bolster 20, rotating shaft 50, activity are convex
Wheel 30 and it is relatively fixed cam 40 with movable cam 30；
Movable bolster 20 is connected on fixed bolster 10 by elastic parts 80, and movable bolster 20 and 10 common shape of fixed bolster
Into there is zone of action；
Movable cam 30 and fixed cam 40 are located in zone of action, and fixed cam 40 is connected on fixed bolster 10；
One end of rotating shaft 50 sequentially passes through fixed cam 40, movable cam 30 and movable bolster 20, and the both ends of rotating shaft 50 turn
Dynamic to be arranged on fixed bolster 10, movable cam 30 is connected with rotating shaft 50, and movable cam 30 and movable bolster 20 can edges
The axial movement of rotating shaft 50；
Elastic parts 80, which acts on movable bolster 20, can make movable cam 30 and the fixed male-female engagement of cam 40；Rotating shaft 50 can
Make movable cam 30 towards the direction movement away from fixed cam 40, and act on the movable elasticity of compression component 80 of bolster 20.
In the present embodiment, by the setting of elastic parts, movable bolster 20 can form space size with fixed bolster 10 can
The zone of action of change, so, can adaptive act cam 30 rotated with rotating shaft 50 and male-female engagement institute occur with fixed cam 40
Caused axial movement, meanwhile, corresponding elastic reset power, which can be also produced, to react on movable cam 30 enables rotating shaft 50
Generation automatically resets rotation.
The present embodiment is in zero-bit state, movable cam 30 and the fixed male-female engagement of cam 40, and movable cam 30 is located at
Near the position of fixed bolster 10, at this moment, movable bolster 20 is connected in the presence of elastic parts on fixed bolster 10.When
Force act on rotating shaft 50 make its be relatively fixed bolster 10 occur certain angle rotation when, movable cam 30 can follow rotating shaft 50
Rotate together, at this moment, movable cam 30 can then be held because of its male-female engagement between fixed cam 40 to away from fixation
The direction movement of frame 10, at this moment, then can cause the movable elasticity of compression component of bolster 20 and formed with counteractive reset force, when applying
After power release, the reset that the reset force then can be to movable cam rotates offer kinetic energy so that rotating shaft 50 can bounce back into specific automatically
On the position that opening angle even closes.
For ease of realizing automatic rebound work of the rotating shaft 50 in specific opening angle position and closing position, it is preferable that institute
Stating movable cam 30 includes movable first convex portion 31, movable second convex portion 32 and movable 3rd convex portion 33, movable first convex portion 31
Movable first recess 34 is provided between movable second convex portion 32, is provided between movable second convex portion 32 and movable 3rd convex portion 33
Movable second recess 35, is connected with guiding incline respectively between each convex portion and recess；
The fixed cam 40 includes fixing the first convex portion 41, fix the second convex portion 42 and fixing the 3rd convex portion 43, fixes first
Convex portion 41 and fix to be provided between the second convex portion 42 and fix the first recess 44, fix the second convex portion 42 with fix the 3rd convex portion 43 it
Between be provided with fix the second recess 45, be connected respectively with guiding incline between each convex portion and recess.
The present embodiment is in zero-bit state, when fixing the first convex portion 41 positioned at movable first recess 34, now, rotating shaft 50
Bolster 10 is not relatively fixed to be rotated；When force rotating shaft 50 makes it drive movable cam 30 to rotate, until fixing the
When one convex portion 41 is located at movable second recess 35, at this moment, rotation then enters the first opening angle band of position, can be by the second recess
35 position is arranged to about 40 ° of angle（Rotating shaft 50 is relatively fixed the angle of the rotation of bolster 10）Position；Rotating shaft 50 is rotated further,
Fixing the first convex portion 41 then being rotated further and is gradually ramped up being close to activity via the second recess 35 because of movable cam 30
3rd convex portion 33, at this moment, then can the maximum opening angle position that can reach of rotating shaft 50, the position can be arranged to about 130 °
Angle（Rotating shaft 50 is relatively fixed the angle of the rotation of bolster 10）Position.
As it was previously stated, movable cam 30 and fixed cam 40 are in the circumference relatively and axial action of opening process, it is movable
Bolster 20 moves stress laterally, and elasticity of compression component causes elastic parts to be in pressured state.After force is discharged, bullet
Property component can then be driven because of the elastic restoring force of its own automatic reverse of movable cam 30 rotate by foregoing maximum opening angle
The first opening angle position is returned to, namely fixes the first convex portion 41 and is located at movable second recess 35, herein the first opening angle
After lower slightly force make it that fixing the first convex portion 41 crosses movable second convex portion 32, elastic parts then may act on movable cam 30 certainly
It is dynamic to rotate backward to zero-bit state.
There is fixation to hold piece 11 for the stability moved for raising activity bolster 20, further, the fixed bolster 10, Gu
Surely hold one end of piece 11 to inner side extension formed with first end flanging 16, the fixed other end for holding piece 11 to inner side extension formed with
The second end flanging 12 relative with first end flanging 16；
There is the movable bolster 20 activity to hold piece 24, and the both ends that piece 24 is held in activity are prolonged to close to the direction of first end flanging 16
Stretch be provided with extension flanging 21, and extend flanging 21 free end laterally be extended have connection flanging 22；
The elastic parts 80 is provided with two groups, and two elastic parts 80 are located at the both sides of the second end flanging 12, two elastic parts respectively
80, which sequentially pass through connection flanging 22 and first end flanging 16, is connected to movable bolster 20 on fixed bolster 10, and movable bolster
In 20 region between the end flanging 12 of first end flanging 16 and second.
In the present embodiment, two positioning holes 14 are provided with first end flanging 16, being provided with two on fixed cam 40 can
The positioning convex column 47 coordinated respectively with two positioning holes 14, fixed cam 40 will by the cooperation of positioning convex column 47 and positioning hole 14
Fixed cam 40 is connected on fixed bolster 10.The middle part of first end flanging 16 is provided with the region between two positioning holes 14 and consolidated
Center hole 13, and fixed cam 40 is provided with center through hole 46, and movable cam 30, which is provided with, interlocks centre bore 36, and activity is held in piece 24
Portion is provided with activity centre hole 25, and the middle part of the second end flanging 12 is provided with spliced eye 15；One end of rotating shaft 50 is sequentially passed through in fixation
Heart hole 13, center through hole 46, gearing centre bore 36, activity centre hole 25 and spliced eye 15 are connected with fixed bolster 10.
To avoid rotating shaft 50 from departing from the second end flanging 12, it is preferable that one end of the rotating shaft 50 sequentially passes through described first
End flanging 16, fixed cam 40, movable cam 30, activity hold the end flanging 12 of piece 24 and second, and the end are provided with annular groove
51；
Also include clasp 54, clasp 54 insert in annular groove 51 and with the end face outside of the second end flanging 12 against.
Cooperation between clasp 54 and annular groove 51 can limit the position of rotating shaft 50, avoid it during circumferentially rotating
Axial movement occurs and influences the cooperation between movable cam 30 and fixed cam 40.
To realize the gearing work of movable cam 30 and rotating shaft 50, it is preferable that the rotating shaft 50 includes convex with the activity
Wheel 30 interlocks the gearing shaft 52 coordinated.
To realize that elastic parts is acted on the stable resilient support of movable bolster 20, it is preferable that the elastic parts 80 wraps
Include guide pillar 81, spring 82 and nut 83；
The connection flanging 22 is provided with aperture and connects hole 23 more than the external diameter of guide pillar 81；
The one end of guide pillar 81 is connected on the first end flanging 16, the other end of guide pillar 81 sequentially pass through connect hole 23 and spring 82 with
Nut 83 is threadedly coupled；
The both ends of spring 82 are respectively acting on nut 83 and connection flanging 22 so that：Connection flanging 22 is resisted against first end flanging
On 10.
Two fixing holes 19 for being located at the both sides of two positioning hole 14 respectively, in addition to two first are additionally provided with fixed bolster 10
Bolt 84, two first bolts 84 are each passed through two fixing holes 19 and the screw thread of two guide pillar 80 coordinates.
Embodiment 2
As shown in Fig. 9 ~ 13, a kind of support foot rest, including U-shaped part 90 and two it is automatic as described in any one in embodiment 1
Withdraw and close mechanism, the other end of the rotating shaft 50 in the mechanism are connected with foot stool connector 70, bipod frame connector 70
The both ends with U-shaped part 90 are connected respectively.
Preferably, foot stool double-action plate 60 is provided with the foot stool connector 70, gearing is offered on foot stool double-action plate 60
Groove 61；
The rotating shaft 50 includes interlocking the termination bar 53 coordinated with linked slot 61.
Foot stool double-action plate 60 is fixed on foot stool connector 70 by the second bolt 62.Two are additionally provided with fixed bolster 10
The individual group contact pin 18 for being located at the both sides of two fixing hole 19 respectively and being connected with first end flanging, organize and offer joining hole in contact pin 18
17, fixed bolster 10 can be connected in by the 3rd bolt-through joining hole 17 in plane class of electronic devices.The present embodiment application
When, force in the rotation work that countershaft 50 can be achieved in U-shaped part 90.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert this
The embodiment of invention is confined to these explanations.For general technical staff of the technical field of the invention,
The other embodiment drawn in the case where not departing from technical scheme, should be included within the scope of the present invention.
Claims (8)
1. automatic drawing back and close mechanism, it is characterised in that：Including fixed bolster（10）, movable bolster（20）, rotating shaft（50）, it is living
Moving cam（30）And and movable cam（30）Be relatively fixed cam（40）；
Movable bolster（20）Pass through elastic parts（80）It is connected to fixed bolster（10）On, and movable bolster（20）With fixed bolster
（10）It has been collectively forming zone of action；
Movable cam（30）With fixed cam（40）In zone of action, and fixed cam（40）It is connected to fixed bolster（10）
On；
Rotating shaft（50）One end sequentially pass through fixed cam（40）, movable cam（30）And movable bolster（20）, and rotating shaft（50）
Both ends be rotatably arranged on fixed bolster（10）On, movable cam（30）With rotating shaft（50）It is connected, movable cam（30）
With movable bolster（20）Can be along rotating shaft（50）Axial movement；
Elastic parts（80）Act on movable bolster（20）Movable cam can be made（30）With fixed cam（40）Male-female engagement；Rotate
Rotating shaft（50）Movable cam can be made（30）Towards away from fixed cam（40）Direction movement, and act on movable bolster（20）Compression
Elastic parts（80）.
2. automatic drawing back according to claim 1 and close mechanism, it is characterised in that：The movable cam（30）With it is described
Fixed cam（40）Include the first convex portion, the second convex portion and the 3rd convex portion, first is provided between the first convex portion and the second convex portion
Recess, the second recess is provided between the second convex portion and the 3rd convex portion, and is held in the mouth respectively with guiding incline between each convex portion and recess
Connect.
3. automatic drawing back according to claim 1 and close mechanism, it is characterised in that：The fixed bolster（10）With solid
Surely piece is held（11）, it is fixed to hold piece（11）One end to inner side（Close to the movable bolster（20）Direction）Extension is formed with first
Hold flanging（16）, it is fixed to hold piece（11）The other end to inner side extend formed with first end flanging（16）Relative the second end folding
Side（12）；
The movable bolster（20）Piece is held with activity（24）, activity holds piece（24）Both ends to close to first end flanging（16）
Direction be extended have extension flanging（21）, and extend flanging（21）Free end laterally be extended have connection flanging
（22）；
The elastic parts（80）Two groups are provided with, two elastic parts（80）It is located at the second end flanging respectively（12）Both sides, two bullets
Property component（80）Sequentially pass through connection flanging（22）With first end flanging（16）By movable bolster（20）It is connected to fixed bolster
（10）On, and movable bolster（20）Positioned at first end flanging（16）With the second end flanging（12）Between region in.
4. automatic drawing back according to claim 3 and close mechanism, it is characterised in that：The rotating shaft（50）One end successively
Through the first end flanging（16）, fixed cam（40）, movable cam（30）, activity hold piece（24）And the second end flanging
（12）, and the end is provided with annular groove（51）；
Also include clasp（54）, clasp（54）Insert annular groove（51）It is interior and with the second end flanging（12）End face outside against.
5. automatic drawing back according to claim 4 and close mechanism, it is characterised in that：The rotating shaft（50）Including with it is described
Movable cam（30）Interlock the gearing shaft coordinated（52）.
6. automatic drawing back according to claim 3 and close mechanism, it is characterised in that：The elastic parts（80）Including leading
Post（81）, spring（82）And nut（83）；
The connection flanging（22）It is more than guide pillar provided with aperture（81）External diameter connects hole（23）；
Guide pillar（81）One end is connected in the first end flanging（16）On, guide pillar（81）The other end sequentially pass through and connect hole（23）With
Spring（82）With nut（83）Threaded connection；
Spring（82）Both ends be respectively acting on nut（83）And connection flanging（22）So that：Connection flanging（22）It is resisted against
One end flanging（10）On.
A kind of 7. support foot rest, it is characterised in that：Including U-shaped part（90）With two such as according to any one in claim 1 ~ 6
Described automatic drawing back and close mechanism, the rotating shaft in the mechanism（50）The other end be connected with foot stool connector（70）,
Bipod frame connector（70）Respectively with U-shaped part（90）Both ends be connected.
8. automatic drawing back according to claim 7 and close mechanism, it is characterised in that：The foot stool connector（70）On set
It is equipped with foot stool double-action plate（60）, foot stool double-action plate（60）On offer linked slot（61）；
The rotating shaft（50）Including with linked slot（61）Interlock the termination bar coordinated（53）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537904.1A CN107387543A (en) | 2017-07-04 | 2017-07-04 | Automatic drawing back and close mechanism, a kind of support foot rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537904.1A CN107387543A (en) | 2017-07-04 | 2017-07-04 | Automatic drawing back and close mechanism, a kind of support foot rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107387543A true CN107387543A (en) | 2017-11-24 |
Family
ID=60335150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710537904.1A Pending CN107387543A (en) | 2017-07-04 | 2017-07-04 | Automatic drawing back and close mechanism, a kind of support foot rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107387543A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202533A (en) * | 2019-06-11 | 2019-09-06 | 河南职业技术学院 | A kind of double cam universal angle plate |
| CN112211826A (en) * | 2020-09-28 | 2021-01-12 | 陈喜林 | Split type sewage pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6773172B1 (en) * | 2003-08-20 | 2004-08-10 | Joseph M. Johnson | Quick-release clamp for photographic equipment |
| CN205154887U (en) * | 2015-11-03 | 2016-04-13 | 丰城市达盛机车部件有限公司 | Pivot of auto -lock flip |
| CN106667037A (en) * | 2017-03-09 | 2017-05-17 | 昆山刚毅精密电子科技有限公司 | Fixed-angle automatic bouncing and retracting supporting frame |
-
2017
- 2017-07-04 CN CN201710537904.1A patent/CN107387543A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6773172B1 (en) * | 2003-08-20 | 2004-08-10 | Joseph M. Johnson | Quick-release clamp for photographic equipment |
| CN205154887U (en) * | 2015-11-03 | 2016-04-13 | 丰城市达盛机车部件有限公司 | Pivot of auto -lock flip |
| CN106667037A (en) * | 2017-03-09 | 2017-05-17 | 昆山刚毅精密电子科技有限公司 | Fixed-angle automatic bouncing and retracting supporting frame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202533A (en) * | 2019-06-11 | 2019-09-06 | 河南职业技术学院 | A kind of double cam universal angle plate |
| CN110202533B (en) * | 2019-06-11 | 2020-11-24 | 河南职业技术学院 | Double-cam universal rotary table |
| CN112211826A (en) * | 2020-09-28 | 2021-01-12 | 陈喜林 | Split type sewage pump |
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Application publication date: 20171124 |
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