The content of the invention
It is an object of the invention to provide suppressible articulated structure and hinge component after a kind of easy for installation and assembling.
To achieve the above object, according to an aspect of the present invention, the invention provides a kind of hinge component, for by two
Component is connected with each other, and the hinge component includes:
Upper hinge seat, the both sides that the bottom of upper hinge seat is provided with first axle hole group and upper hinge seat are provided with the
One position limiting structure, wherein first position limiting structure be used for the upper hinge seat in first component of described two components
Positioning;
Hinge body, the hinge body is provided with the second hinge hole group and third hinge hole group being parallel to each other;
Lower hinge seat, the both sides that the top of lower hinge seat is provided with the 4th pan group and lower hinge seat are provided with the
Two position limiting structures, wherein second position limiting structure be used for the lower hinge seat in second component of described two components
Positioning;And
One of two joint pins, described two joint pins pass through first axle hole group and second hinge group hole, and institute
Another stated in two joint pins passes through third hinge hole group and the 4th pan group.
In one embodiment, the first component is provided with the first groove for accommodating upper hinge seat, the upper hinge seat energy
Reach in first groove and can between the first location and the second location be moved in first groove, and it is described
Second component is provided with the second groove for accommodating lower hinge seat, and lower hinge seat can be in second groove and can
Moved between the first location and the second location in second groove.
In one embodiment, first position limiting structure be arranged to the upper hinge seat relative to first component from
After first position moves to the second place, coordinate with first component and upper hinge seat is positioned at the second place;
And/or second position limiting structure is arranged to be moved to from first position relative to second component in lower hinge seat
After the second place, coordinate with second component and lower hinge seat is positioned at the second place.
In one embodiment, the upper hinge seat is provided with upper hinge seat body, and the upper hinge seat body both sides are integrally formed
Flexible arm, the end of the elastic arm is formed with first position limiting structure, and the lower end of the upper hinge seat is formed with each other
At least two pans for separating;The hinge body is provided with hinge body body, the top and bottom of the hinge body body
Portion is respectively provided with least one pan;And the lower hinge seat is provided with lower hinge seat body, the lower hinge seat body both sides
Elastic arm is formed with, the end of the elastic arm is formed with second position limiting structure, and the upper end of the lower hinge seat is formed
There is spaced at least two pan.(there is no the embodiment of location structure on joint pin)
In one embodiment, the upper hinge seat is provided with upper hinge seat body, and the upper hinge seat body both sides are integrally formed
Flexible arm, the end of the elastic arm is formed with first position limiting structure, and the lower end of the upper hinge seat is formed with each other
At least one of at least three pans for separating, the pan of upper hinge seat pan is provided with the first locating slot;Institute
State hinge body and be provided with hinge body body, at least two pans are respectively provided with the top and bottom of the hinge body body;
The lower hinge seat is provided with lower hinge seat body, and the lower hinge seat body both sides are formed with elastic arm, the elastic arm
End is formed with second position limiting structure, and the upper end of the lower hinge seat is formed with spaced at least three hinge
At least one of hole, pan of the lower hinge seat are provided with the second locating slot;And two joint pins are provided with radially
The positioning key of protrusion, wherein the positioning key of in two joint pins coordinates with the first locating slot of the upper hinge
It is spacing between the joint pin and upper hinge seat to realize, and the positioning key of another in two joint pins and institute
The second locating slot for stating lower hinge seat coordinates spacing between the joint pin and lower hinge seat to realize.
In one embodiment, the 3rd positioning extended along short transverse is additionally provided with the front side of the upper hinge seat or rear side
Groove, the 3rd locating slot coordinates to limit the left and right shifting of the upper hinge seat with the first positioning bar on first component
Position;And lower hinge seat front side or rear side on the 4th locating slot that also extends along short transverse, the 4th locating slot
Coordinate to limit the left and right sidesing shifting of the lower hinge seat with the second positioning bar on second component.
In one embodiment, the upper hinge seat is provided with upper hinge seat body, and the upper hinge seat body both sides are integrally formed
Flexible arm, the end of the elastic arm is formed with first position limiting structure, and the lower end of the upper hinge seat is formed with each other
Three pans for separating a, pan in the pan of the upper hinge seat is provided with the first locating slot, the upper hinge
On the 3rd locating slot also extended along short transverse on the front side of seat or rear side, the 3rd locating slot and first component
The first positioning bar coordinate to limit the left and right sidesing shifting of upper hinge seat;The hinge body is provided with hinge body body, institute
State and two pans are respectively provided with the top and bottom of hinge body body;The lower hinge seat is provided with lower hinge seat body, described
Lower hinge seat body both sides are formed with elastic arm, and the end of the elastic arm is formed with second position limiting structure, it is described under
The upper end of hinge seat is formed with spaced three pans, and one in the pan of the lower hinge seat is provided with positioning
Groove, and the lower hinge seat front side or rear side on also along short transverse extend the 4th locating slot, the 4th locating slot
Coordinate to limit the left and right sidesing shifting of the lower hinge seat with the second positioning bar on second component;And two hinges
Chain pin is provided with the positioning key of radially protruding, wherein the of the positioning key of in two joint pins and upper hinge seat
One locating slot coordinates spacing between the joint pin and upper hinge seat to realize, and another in two joint pins
Positioning key and the lower hinge seat the second locating slot coordinate with realize the joint pin and the lower hinge seat between it is spacing.
In one embodiment, first position limiting structure is provided with the first hook, and first hook is C fonts, the bottom of C words
Portion is provided with spigot surface, and C words are respectively arranged at two ends with stop surface and buckle hanging unit;And second position limiting structure is provided with the second extension
Hook, second hook is substantially C fonts, and the bottom of C words is provided with spigot surface, and C words are respectively arranged at two ends with stop surface and buckle
Portion.
In another embodiment, first position limiting structure is provided with the first hook, and first hook is L-shaped, L words
Corner is provided with spigot surface, and L words are respectively arranged at two ends with stop surface and buckle hanging unit;And second position limiting structure is provided with
Two hooks, second hook is L-shaped, the corner of L words is provided with spigot surface, and L words are respectively arranged at two ends with stop surface and extension
Buckle.
In one embodiment, the top of the hinge body is provided with first along spacing group and first against spacing group, the hinge
The bottom of main body is provided with second along spacing group and second against spacing group, and in two adjacent pans on upper hinge seat
Between be additionally provided with and assemble the 3rd of conjunction along spacing group and the 4th against spacing against spacing along spacing group and first with described first respectively
It is additionally provided between two adjacent pans in group, and lower hinge seat inverse along spacing group and second with described second respectively
It is spacing to assemble the 4th of conjunction along spacing group and the 5th against spacing group.
In one embodiment, the joint pin has cylindrical body, and the cylindrical body is provided with and extends radially through institute
State the through hole of cylinder-shaped body.
In one embodiment, it is raised to be additionally provided with circular orientation on the periphery of the joint pin, the upper hinge seat and it is described under
Corresponding annular groove is provided with the pan of hinge seat, the circular orientation is raised to be coordinated with by described in two with the annular groove
Hinge is individually fixed in the upper hinge seat and lower hinge seat.
According to another aspect of the present invention, additionally provide it is a kind of for connect two articulated structures of component, wherein, it is described
Articulated structure includes upper hinge seat, hinge body and lower hinge seat, wherein, the upper hinge seat is arranged to be contained in institute
State in first the first groove of setting in two components, the lower hinge seat is arranged to be contained in described two components
In second the second groove of setting in, the hinge body is connected to upper hinge seat and the lower hinge by joint pin
Chain seat so that the hinge body can be relative to upper hinge seat and lower hinge seat rotation, and the upper hinge
Seat is arranged to be moved up and down relative to first groove and lower hinge seat is arranged to relative to described second
Groove is moved up and down, so as to move preset distance and lower hinge seat phase relative to first groove in upper hinge seat
After for second groove movement preset distance, first component in described two components can be relative to second component
Rotation.
In one embodiment, the left and right sides of the upper hinge seat is provided with the first position limiting structure, the left and right of the lower hinge seat
Both sides are provided with the second position limiting structure, and the two bottom sides of first groove are provided with the 3rd position limiting structure, second groove
Top both sides be provided with the 4th position limiting structure, wherein first position limiting structure and the 3rd position limiting structure coordinate to stop
State upper hinge seat and depart from first groove, and second position limiting structure coordinates described to stop with the 4th position limiting structure
Lower hinge seat departs from second groove.
In one embodiment, the 3rd positioning extended along short transverse is additionally provided with the front side of the upper hinge seat or rear side
Groove, the 3rd locating slot coordinates to limit the upper hinge seat with the first positioning bar being arranged in the side wall of first groove
Left and right sidesing shifting;And lower hinge seat front side or rear side on the 4th locating slot that also extends along short transverse, this
Four locating slots coordinate to limit the left and right sidesing shifting of the lower hinge seat with the second positioning bar being arranged in second groove.
In one embodiment, the upper hinge seat is provided with upper hinge seat body, and the upper hinge seat body both sides are integrally formed
Flexible arm, the end of the elastic arm is formed with first position limiting structure, and the lower end of the upper hinge seat is formed with each other
At least two pans for separating;The hinge body is provided with hinge body body, the top and bottom of the hinge body body
Portion is respectively provided with least one pan;And the lower hinge seat is provided with lower hinge seat body, the lower hinge seat body both sides
Elastic arm is formed with, the end of the elastic arm is formed with second position limiting structure, and the upper end of the lower hinge seat is formed
There is spaced at least two pan.(there is no the embodiment of location structure on joint pin)
In one embodiment, the upper hinge seat is provided with upper hinge seat body, and the upper hinge seat body both sides are integrally formed
Flexible arm, the end of the elastic arm is formed with first position limiting structure, and the lower end of the upper hinge seat is formed with each other
At least one of at least three pans for separating, the pan of upper hinge seat pan is provided with the first locating slot;Institute
State hinge body and be provided with hinge body body, at least two pans are respectively provided with the top and bottom of the hinge body body;
The lower hinge seat is provided with lower hinge seat body, and the lower hinge seat body both sides are formed with elastic arm, the elastic arm
End is formed with second position limiting structure, and the upper end of the lower hinge seat is formed with spaced at least three hinge
At least one of hole, pan of the lower hinge seat are provided with the second locating slot;And two joint pins are provided with radially
The positioning key of protrusion, wherein the positioning key of in two joint pins coordinates with the first locating slot of the upper hinge
It is spacing between the joint pin and upper hinge seat to realize, and the positioning key of another in two joint pins and institute
The second locating slot for stating lower hinge seat coordinates spacing between the joint pin and lower hinge seat to realize.
In one embodiment, the upper hinge seat is provided with upper hinge seat body, and the upper hinge seat body both sides are integrally formed
Flexible arm, the end of the elastic arm is formed with first position limiting structure, and the lower end of the upper hinge seat is formed with each other
Three pans for separating a, pan in the pan of the upper hinge seat is provided with the first locating slot, the upper hinge
On the 3rd locating slot also extended along short transverse on the front side of seat or rear side, the 3rd locating slot and first component
The first positioning bar coordinate to limit the left and right sidesing shifting of upper hinge seat;The hinge body is provided with hinge body body, institute
State and two pans are respectively provided with the top and bottom of hinge body body;The lower hinge seat is provided with lower hinge seat body, described
Lower hinge seat body both sides are formed with elastic arm, and the end of the elastic arm is formed with second position limiting structure, it is described under
The upper end of hinge seat is formed with spaced three pans, and one in the pan of the lower hinge seat is provided with positioning
Groove, and the lower hinge seat front side or rear side on also along short transverse extend the 4th locating slot, the 4th locating slot
Coordinate to limit the left and right sidesing shifting of the lower hinge seat with the second positioning bar on second component;And two hinges
Chain pin is provided with the positioning key of radially protruding, wherein the of the positioning key of in two joint pins and upper hinge seat
One locating slot coordinates spacing between the joint pin and upper hinge seat to realize, and another in two joint pins
Positioning key and the lower hinge seat the second locating slot coordinate with realize the joint pin and the lower hinge seat between it is spacing.
In one embodiment, first position limiting structure is provided with the first hook, wherein first hook is substantially C words
Shape, the bottom of C words is provided with spigot surface, and C words are respectively arranged at two ends with stop surface and buckle hanging unit;And on second position limiting structure
The second hook is provided with, wherein second hook is substantially C fonts, the bottom of C words is provided with spigot surface, and the two ends of C words set respectively
There are stop surface and buckle hanging unit.
In one embodiment, it is sequentially provided with the first hanging platform and second in first groove from top to bottom along short transverse and hangs
Platform, wherein first hanging platform is provided with guiding surface, second hanging platform is provided with spacing plane;And edge in second groove
Short transverse is sequentially provided with the 3rd hanging platform and the 4th hanging platform from top to bottom, wherein the 3rd hanging platform is provided with guiding surface, it is described
4th hanging platform is provided with spacing plane.
In one embodiment, the top of the hinge body is provided with first along spacing group and first against spacing group, the hinge
The bottom of main body is provided with second along spacing group and second against spacing group, and in two adjacent pans on upper hinge seat
Between be additionally provided with and assemble the 3rd of conjunction along spacing group and the 4th against spacing against spacing along spacing group and first with described first respectively
It is additionally provided between two adjacent pans in group, and lower hinge seat inverse along spacing group and second with described second respectively
It is spacing to assemble the 4th of conjunction along spacing group and the 5th against spacing group.
In one embodiment, the joint pin has cylindrical body, and the cylindrical body is provided with and extends radially through institute
State the through hole of cylinder-shaped body.
In one embodiment, it is raised to be additionally provided with circular orientation on the periphery of the joint pin, the upper hinge seat and it is described under
Corresponding annular groove is provided with the pan of hinge seat, the circular orientation is raised to be coordinated with by described in two with the annular groove
Hinge is individually fixed in the upper hinge seat and lower hinge seat.
Further aspect of the invention, there is provided a kind of for connecting two articulated structures of component, wherein, the hinge
Binding structure includes upper hinge seat, hinge body and lower hinge seat, wherein, upper hinge seat is arranged to be contained in described
In the first groove that one of two components are set, the lower hinge seat is arranged to be contained in described two components another
In the second groove for setting, the hinge body is connected to the upper hinge seat and lower hinge seat by joint pin so that
The hinge body can be arranged to relative to upper hinge seat and lower hinge seat rotation, and upper hinge seat
It is enough to be moved up and down relative to first groove, so as to move pre- spacing relative to first groove in upper hinge seat
From a component in described two components can rotate relative to another component, or lower hinge seat is arranged to
It is enough to be moved up and down relative to second groove, so that lower hinge seat moves preset distance relative to second groove
Afterwards, a component in described two components can rotate relative to another component.
In accordance with a further aspect of the present invention, there is provided a kind of container, the container includes four side plates and base, the side
Plate is connected to the base, and side plate is provided with wicket described at least one, wherein, the wicket and the side plate are by above-mentioned
Hinge component or above-mentioned articulated structure be connected with each other.
Beneficial effect:
In the present invention, use in the container of hinge component of the invention and articulated structure, structure is novel reliable, succinctly defends
It is raw.After installation is complete, can't see hinge completely in container appearances, and cause that the dismounting of hinge is more convenient.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below with reference to accompanying drawing, to become apparent from understanding of the invention
Objects, features and advantages.It should be understood that embodiment shown in the drawings is not limited the scope of the present invention, and it is simply
The connotation of explanation technical solution of the present invention.
Fig. 1 shows a kind of container of the thin plate using the articulated structure of the first embodiment of the present invention, and such as super displaying of business is single
First (Retail Display Unit).As shown in figure 1, container includes base 1 and two pairs of side plates 2,4.On each side plate 2,4
Also there is wicket 3,5.It is connected by some groups of articulated structures between wicket 3,5 and side plate 2,4 so that wicket 3,5 being capable of phase
Opened for side plate 2,4.It should be understood that articulated structure of the invention for the company between other kinds of two components
Connect.
Specifically, articulated structure of the invention is illustrated by taking the connection of wicket 5 and side plate 4 as an example hereafter.It is hinged knot
Structure includes the installation cooperation structure on hinge component 6 and wicket 5 and side plate 4.
The installation cooperation structure of explanation wicket 5 and side plate 4 first, as seen in figures 3-5, the wall thickness of lower section two of wicket 5 it
Between be provided with several opening groove 51.Positioning bar 52 is extended with the front side of groove 51 or the wall thickness of rear side.Positioning bar
52 vertically extend.Meanwhile, the both sides of groove 51 are equipped with the first hanging platform 53 and the second hanging platform along short transverse from top to bottom
54, wherein having one section of straight wall 55 between the first hanging platform 53 and the second hanging platform 54.Oral area of second hanging platform 54 near groove 51.Phase
With, the groove 41 of several openings, the front side of groove 41 or the wall thickness of rear side are provided between the wall thickness of top two of side plate 4
On be extended with positioning bar 42.Meanwhile, the both sides of groove 41 are equipped with the first hanging platform 44 and the second hanging platform along short transverse from top to bottom
43, wherein having one section of straight wall 45 between the first hanging platform 44 and the second hanging platform 43.Oral area of second hanging platform 43 near groove 41.The
One hanging platform 44 and 53 is identical and is inclined-plane, and the second hanging platform 43 and 54 is identical and is horizontal face.Below with the He of the first hanging platform 53
The structure of the first hanging platform and the second hanging platform is described in more detail as a example by second hanging platform 54.As shown in figure 5, the first hanging platform 53 includes being connected
Two sections of continuous inclined-planes 53a and 53b, wherein first paragraph inclined-plane 53a up is in the diagonal, the second segment inclined-plane 53b in lower section is oblique
Outwards.Second hanging platform 54 includes the spacing plane a and bottom bevel 54b almost parallel with the bottom surface of wicket.
Hinge component 6 is installed in the groove 51 of the groove 41 of wicket and side plate, it is possible in the first hanging platform 44,53 and
What is operated between two hanging platforms 43,54 carries out position switching.When lift wicket 5 when, hinge component 6 coordinate the second hanging platform 43,
On 54, now wicket can rotate to open wicket relative to side plate.When wicket 5 is pressed, hinge component 6 coordinates in the second hanging platform
44th, on 53, now wicket can not be rotated relative to side plate, and hinge component is hidden in wicket and side plate.
As shown in Fig. 6~9, hinge body 63 has two groups of (two rows) pans 631 to the structure of hinge component 6.Each hinge
The one end in chain hole 631 all has along spacing 632 and inverse spacing 633.That is, the top of hinge body is provided with along spacing 632 and inverse limit
Position 633, and the bottom of hinge body also is provided with suitable spacing 632 and inverse spacing 633.It is spaced apart along spacing 632 and inverse spacing 633
And the projection being substantially parallel to each other.It should be understood that identical function can also be realized using other suitable position limiting structures.
Hinge body 63 is engaged by pan 631 and joint pin 62.As shown in figure 8, the primary structure of joint pin 62
Be cylinder 621, one end of cylinder 621 has a positioning key 622 for projecting radially outward, the pan of positioning key and upper hinge seat it
Locating slot 612 in one coordinates to limit joint pin rotation in the pan of upper hinge seat.One end of cylinder 621 is additionally provided with fixed
Position ring 624, for joint pin to be fixed on into hinge seat.Permission joint pin 62 itself local deformation is additionally provided with cylinder 621
Hole 623.Two joint pins 62 are also each passed through upper hinge seat 61 and are connected with it with the pan 611 of lower hinge seat 61.This
In embodiment, upper hinge seat is identical with lower hinge seat, therefore mark identical reference.It should be understood that in this hair
Under bright technical inspiration, those skilled in the art can modify to upper hinge seat and lower hinge seat and make its incomplete phase
Together.It is described in detail as a example by following above hinge seat 61.
Upper hinge seat 61 has body.61 tops of upper hinge seat are provided with spaced three pans 611.Pan
One of 611 are provided with locating slot 612.The body both sides of hinge seat 61 have elastic arm 613.Elastic arm 613 is oblique outer.Elastic arm
613 end is provided with hook 614.Hook 614 is substantially C fonts or L-shaped.The bottom of C words or the turning of L words are provided with guiding
Face 614a, C word or L words are respectively arranged at two ends with stop surface 614b and buckle hanging unit 614c.The hanging platform of hook 614 and first, second are hung
Platform is engaged, so as to realize upper and lower displacement of the hinge component 6 relative to wicket or side plate.Specifically, when when lifting wicket 5,
By the inclined-plane 53a in groove, the spigot surface 614a and inclined-plane 53b of hook coordinate hook 614, the stop surface 614b of hook with put down
Face 54a coordinates, and the buckle hanging unit 614c and inclined-plane 54b of hook coordinate, so as to prevent upper hinge seat 61 from departing from wicket.Now,
Wicket can rotate to open wicket relative to side plate.When wicket 5 is pressed, hinge component 6 coordinates on the second hanging platform 53, now
Wicket can not be rotated relative to side plate, and hinge component is hidden in wicket and side plate.
Locating slot 615 is additionally provided with the front side of upper hinge seat 61 or rear side, locating slot 615 and positioning bar 52 are engaged,
61 left and right displacement on side plate or wicket of upper hinge seat, the stability for protecting it to move after limitation installation.In addition, upper hinge seat
Also it is correspondingly provided with having along spacing 617 and inverse spacing 616 with what joint pin 63 coordinated on 61.Specifically, along spacing 617 and inverse
Spacing 616 may be provided between two adjacent pans.It is along parallel with hinge axes along spacing 617 and inverse spacing 616
The convex tendon that direction extends.The integral assembly figure of hinge component 6 is as shown in fig. 6, it will be evident that due to along position limiting structure and inverse spacing knot
The reason for structure is engaged, when upper hinge seat 61 and hinge body 63 are in almost parallel state, then upper hinge seat 61 is passed through
, it is necessary to certain power crosses position limiting structure could realize when joint pin 62 rotates to an angle relative to hinge body 63.This is just
When ensure that wicket is pressed, the stability of integral hinge component 6 will not produce the deflection easily of upper hinge seat 61.
The integrated model motion process of the present embodiment is as shown in Figure 10 A~10D.When initial, wicket 5 and side plate 4 keep making
With state, the position of hook 614 of the upper hinge seat 61 of hinge component 6 is as shown in figure 4, now hinge component 6 can transmit wicket 5
Or the side force of side plate 4, keep the equilibrium of both stress deformations.When needing to open wicket 5, wicket 5 is lifted upwards so that
The hook 614 of the upper hinge seat 61 of hinge component 6 reaches position shown in Fig. 5, because hook 614 needs to cross the in operating process
One hanging platform and then the second hanging platform is contacted, therefore the power of lifting has the change of light ----weight ----light, gives operator to perceive
Feedback.It is even more important, now the first hanging platform is same near to or in contact with hook 614 so that upper hinge seat 61 will not be due to gravity
Or external force returns to initial position easily, such operator can continue subsequent operation without the power for keeping lifting.Pull lift action
After the completion of, hinge body 63 is fully extended outside the groove 41 of side plate 4 and the groove 51 of wicket 5, now may be reversed wicket 5
Open it, it should be noted that in switching process, upper and lower two joint pins 62 any one all possibly as rotating first
Pivot, the wicket 5 that finishes of upset and side plate 4 is parallel and patch is neat.
Figure 11~13D shows the structural representation of the second embodiment of articulated structure of the invention.Such as Figure 11~13D institutes
Show, the present embodiment is identical with the hinge component 6 of above-described embodiment, the difference is that only, in the present embodiment, the groove of wicket 5a
5a1 is arranged so that upper hinge seat is maintained static in groove, and the depth ratio first embodiment of the groove 4a1 of side plate 4a is right
Answer the depth of groove 41 deeper, so that a part for hinge component 6, its part or complete for including lower hinge seat and hinge body
Portion and a part for optional upper hinge seat, can move up and down in groove 41.
Specifically, only it is respectively equipped with a hanging platform 5a2 on the two side of the groove 5a1 of wicket 51a.Hanging platform 5a2 and upper hinge
The hook of chain seat coordinates, and upper hinge seat is fixed in the groove 5a1 of wicket.The first extension is provided with the groove 4a1 of side plate 4a
Platform 4a2 and the second hanging platform 4a3.The structure of the first hanging platform 4a2 and the second hanging platform 4a3 respectively with the first hanging platform 44 in first embodiment
It is identical with position with the second hanging platform 43, will not be described in detail herein.
The integrated model motion process of the present embodiment is as shown in Figure 13 A~13D.When initial, wicket 5a and side plate 4a keeps
Use state, as shown in figure 11, now hinge component 6 can transmit small for the position of hook 614 of the upper hinge seat 61 of hinge component 6
The side force of door 5a or side plate 4a, keeps the equilibrium of both stress deformations.When needing to open wicket 5a, wicket is lifted upwards
5a so that the hook 614 of the lower hinge seat 61 of hinge component 6 reaches position shown in Figure 12, because hook 614 is needed in operating process
Cross the first hanging platform and then contact the second hanging platform, therefore the power of lifting has the change of light ----weight ----light, gives and operates
Person is with perceptible feedback.It is even more important, now the first hanging platform is same near to or in contact with hook 614 so that lower hinge seat 61 will not
Because gravity or external force return to initial position easily, such operator can continue subsequent operation without the power for keeping lifting.
After the completion of pull lift action, hinge body 63 is fully extended outside the groove 5a1 of the groove 4a1 and wicket 5a of side plate 4a, now
May be reversed wicket 5a to open it, it should be noted that in switching process, any one is all possible for upper and lower two joint pins 62
Used as the pivot for rotating first, wicket 5a and side plate 4a that upset is finished are parallel and patch is neat.
Unlike above-mentioned second embodiment and first embodiment, the recessing selection of second embodiment is relatively flexibly used
In the occasion that wicket and lateral plate structure space require, but second embodiment can make the groove of hinge component displacement due to chi
Very little bigger, intensity is not good enough, and the structure of similar positioning bar is inconvenient to use, so the reliability of overall articulated structure and operation
Experience is slightly inferior to first embodiment.
Below presently preferred embodiments of the present invention has been described in detail, it is understood that reading of the invention above-mentioned say
Award after content, those skilled in the art can make various changes or modifications to the present invention.These equivalent form of values equally fall within this
Application appended claims limited range.