Summary of the invention
One object of the present invention is to provide a kind of adjustable lifting support apparatus, utilize at least one gear set to cooperate transmission shaft, adjusting the height of bracing frame with respect to base, and bracing frame follow support to rise and decrement phase between, can make bracing frame keep a fixed angle with respect to base.In addition, the cost of adjustable lifting support apparatus of the present invention is lower, and structure is also comparatively simple.
According to of the present invention one preferred specific embodiment, adjustable lifting support apparatus comprises a support, a base, one first stationary shaft, a bracing frame, one second stationary shaft and a transmission shaft.It is one first axial that base limits, and it is one second axial that bracing frame limits, wherein an angle be limited to first axially with second axial between.First stationary shaft has one first end and one second end, and first stationary shaft is installed on the base by first end, is installed on the support by second end, and wherein, the second end place of contiguous first stationary shaft is equiped with one first gear.Second stationary shaft has a five terminal and one the 6th end, and second stationary shaft is installed on the bracing frame by five terminal, is installed on the support by the 6th end, and wherein, the 6th end place of contiguous second stationary shaft is equiped with one the 4th gear.Transmission shaft has one the 3rd end and one the 4th end, and transmission shaft is installed on the support rotationally.The 3rd end place of contiguous transmission shaft is equiped with one second gear, and the 4th end place of contiguous transmission shaft is equiped with one the 3rd gear, and wherein second gear is meshed with first gear, and the 3rd gear is meshed with the 4th gear.
In above-mentioned adjustable lifting support apparatus, bracing frame is accompanied by the rising and the decline of support, be by applying an external force on bracing frame or support, make second gear with maintain static the first moving gear and relatively rotate, and the 3rd gear and the 4th gear relatively rotate, cause bracing frame be accompanied by that support rises and decrement phase between, first axially with second the angle between axial keep fixing.
Therefore, according to above-mentioned preferred specific embodiment, adjustable lifting support apparatus of the present invention utilizes two gear sets to cooperate transmission shaft, adjust the height of bracing frame with respect to base, and be accompanied by between support rising and decrement phase at bracing frame, can make bracing frame keep a fixed angle with respect to base.In addition, via design of the present invention, further make the cost of liftable supporter reduce, and structure is more simple.
Can be further understood by the following detailed description and accompanying drawings about advantage of the present invention and design.
Embodiment
With reference to Fig. 1, Fig. 1 is the external view of the adjustable lifting support apparatus 10 of one preferred specific embodiment according to the present invention.Adjustable lifting support apparatus 10 includes a support 12, a base 14, one first stationary shaft 16, a bracing frame 18 and a transmission shaft 20.During practical application, transmission shaft 20 can be designed to column substantially.In this embodiment, transmission shaft 20 is designed to cylindric.
As shown in Figure 1, first stationary shaft 16 has one first end 16a and one second end (not shown), and first stationary shaft 16 is installed on the base 14 by the first end 16a, be installed on the support 12 by second end, wherein, the second end place that is close to first stationary shaft 16 is equiped with one first gear 22.Transmission shaft 20 has one the 3rd end 20a and one the 4th end 20b, and transmission shaft 20 is installed on the support 12 rotationally.The 3rd end 20a place of contiguous transmission shaft 20 is equiped with one second gear 24, and wherein second gear 24 is meshed with first gear 22.Bracing frame 18 is installed on the support 12 and the 4th end 20b place of contiguous transmission shaft 20.Demand Design when the number of teeth of said gear can be according to practical application.
In above-mentioned adjustable lifting support apparatus 10, bracing frame 18 is accompanied by the rising and the decline of support 12, by applying an external force on bracing frame 18 or support 12, make second gear 24 with maintain static the first moving gear 22 and relatively rotate, to adjust the height of bracing frame 18 with respect to base 14.For instance, when user's desire reduced bracing frame 18 with respect to the height of base 14, the user must apply a downward external force on bracing frame 18 or support 12, rotates with the direction of brake and transmission shaft 20 arrow 26 in Fig. 1.At this moment, second gear 24 will relatively rotate with maintaining static the first moving gear 22, make bracing frame 18 be accompanied by support 12 and descend.
As shown in Figure 1, adjustable lifting support apparatus 10 of the present invention further comprises an elastic component 28.One end of elastic component 28 is installed on the support 12, and its other end is installed on the transmission shaft 20.Elastic component 28 is accompanied by the rising and the decline of support 12 in order to auxiliary support frame 18, and is more smooth and easy when making bracing frame 18 be accompanied by support 12 to move.During practical application, elastic component 28 can be a volute spring or other like.
In this embodiment, bracing frame 18 comprises that also a bracket 180 and is articulated in the framework 182 of bracket 180, and this bracing frame 18 is installed on the support 12 by bracket 180, makes that framework 182 is rotatable.Thus, the user can be according to demand adjustment bracing frame 18 of itself and the angle between the base 14.
With reference to Fig. 2, Fig. 2 is the external view of the adjustable lifting support apparatus 30 of another preferred specific embodiment according to the present invention.The main difference of adjustable lifting support apparatus 30 and adjustable lifting support apparatus 10 be in, the support 32 of adjustable lifting support apparatus 30 comprises one first sheath body 320 and one first connecting elements 322, and transmission shaft 34 comprises one second sheath body 340 and one second connecting elements 342.As shown in Figure 2, first connecting elements 322 is set in first sheath body 320 movably, and second connecting elements 342 is set in second sheath body 340 movably, causes the length of support 32 and transmission shaft 34 to change along with user's demand.First stationary shaft 16 is installed in by the second end (not shown) on first sheath body 320 of support 32, and bracing frame 18 is installed on first connecting elements 322 of support 32.Second sheath body 340 provides the 3rd end 20a, and the inside surface of second sheath body 340 has at least one groove (not shown).Second connecting elements 342 provides the 4th end 20b, and the outside surface of second connecting elements 342 has at least one rib 3420, and each bar rib 3420 is corresponding to one of them of the groove in second sheath body 340.In this embodiment, when second gear 24 and first gear 22 relatively rotate, by cooperating of each bar rib 3420 and its corresponding groove, second connecting elements 342 will rotate along with second sheath body 340.Adjustable lifting support apparatus 10 among the operating principle of the adjustable lifting support apparatus 30 among Fig. 2 and Fig. 1 identical do not repeat them here.
With reference to Fig. 3, Fig. 3 is the external view of the adjustable lifting support apparatus 40 of another preferred specific embodiment according to the present invention.Adjustable lifting support apparatus 40 includes a support 42, a base 44, one first stationary shaft 46, a bracing frame 48, a transmission shaft 50 and one second stationary shaft 52.During practical application, transmission shaft 50 can be designed to column substantially.In this embodiment, transmission shaft 50 is designed to cylindric.
As shown in Figure 3, one first axial Y
1Be limited on the base 44 one second axial Y
2Be limited on the bracing frame 48, wherein an angle α is limited to the first axial Y
1With the second axial Y
2Between.First stationary shaft 46 has one first end 46a and one second end (not shown), first stationary shaft 46 is installed on the base 44 by the first end 46a, be installed on the support 42 by second end, wherein, the second end place of contiguous first stationary shaft 46 is equiped with one first gear 54.Second stationary shaft 52 has a five terminal 52 and one the 6th end 52b, second stationary shaft 52 is installed on the bracing frame 48 and by the 6th end 52b by five terminal 52a and is installed on the support 42, wherein, the 6th end 52b place that is close to second stationary shaft 52 is equiped with one the 4th gear 56.Transmission shaft 50 has one the 3rd end 50a and one the 4th end 50b, and transmission shaft 50 is installed on the support 42 rotationally.The 3rd end 50a place of contiguous transmission shaft 50 is equiped with one second gear 58, and the 4th end 50b place of contiguous transmission shaft 50 is equiped with one the 3rd gear 60, and wherein second gear 58 is meshed with first gear 54, and the 3rd gear 60 is meshed with the 4th gear 56.Demand Design when the number of teeth of said gear can be according to practical application.
In above-mentioned adjustable lifting support apparatus 40, bracing frame 48 is accompanied by the rising and the decline of support 42, by applying an external force on bracing frame 48 or support 42, make second gear 58 with maintain static the first moving gear 54 and relatively rotate, the 3rd gear 60 and the 4th gear 56 relatively rotate, cause bracing frame 48 be accompanied by that support 42 rises and decrement phase between angle α keep fixing.For instance, when user's desire reduced bracing frame 48 with respect to the height of base 44, the user must apply a downward external force on bracing frame 48 or support 42, rotates with the direction of brake and transmission shaft 50 arrow 62 in Fig. 3.At this moment, second gear 58 will relatively rotate with maintaining static the first moving gear 54, make bracing frame 48 be accompanied by support 42 and descend.Simultaneously, the 3rd gear 60 and the 4th gear 56 also will relatively rotate, and the direction that makes second stationary shaft 52 be accompanied by the 4th gear 56 arrow 64 in Fig. 3 is rotated.Thus, be accompanied by between support 42 decrement phases at bracing frame 48, angle α will keep fixing.
As shown in Figure 3, adjustable lifting support apparatus 40 of the present invention further comprises an elastic component 66.One end of elastic component 66 is installed on the support 42, and its other end is installed on the transmission shaft 50.Elastic component 66 is accompanied by the rising and the decline of support 42 in order to auxiliary support frame 48, and is more smooth and easy when making bracing frame 48 be accompanied by support 42 to move.During practical application, elastic component 66 can be a volute spring or other like.
With reference to Fig. 4, Fig. 4 is the decomposition view of bracing frame 48 among Fig. 3 simultaneously.In this embodiment, bracing frame 48 comprises that further the five terminal 52a that a bracket 480 and is articulated in framework 482, the second stationary shaft 52 of bracket 480 is installed on the bracket 480 of bracing frame 48, makes that framework 482 is rotating.Thus, the user can adjust angle α between bracing frame 48 and the base 44 according to demand itself.
With reference to Fig. 5, Fig. 5 is the external view of the adjustable lifting support apparatus 70 of another preferred specific embodiment according to the present invention.Adjustable lifting support apparatus 70 is with the main difference part of adjustable lifting support apparatus 40, the support 72 of adjustable lifting support apparatus 70 comprises one first sheath body 720 and one first connecting elements 722, and transmission shaft 74 comprises one second sheath body 740 and one second connecting elements 742.As shown in Figure 5, first connecting elements 722 is set in first sheath body 720 movably, and second connecting elements 742 is set in second sheath body 740 movably, causes the length of support 72 and transmission shaft 74 to change with user's demand.First stationary shaft 46 is installed in by the second end (not shown) on first sheath body 720 of support 72, and second stationary shaft 52 is installed on first connecting elements 722 of support 72 by the 6th end 52b.Second sheath body 740 provides the 3rd end 50a, and the inside surface of second sheath body 740 has at least one groove (not shown).Second connecting elements 742 provides the 4th end 50b, and the outside surface of second connecting elements 742 has at least one rib 7420, and each bar rib 7420 is corresponding to one of them of the groove in second sheath body 740.In this embodiment, when second gear 58 and first gear 54 relatively rotate, by cooperating of each bar rib 7420 and its corresponding groove, second connecting elements 742 will rotate along with second sheath body 740, cause the 3rd gear 60 and the 4th gear 56 to relatively rotate.Adjustable lifting support apparatus 40 among the operating principle of the adjustable lifting support apparatus 70 among Fig. 5 and Fig. 3 identical do not repeat them here.
Compare with known technology, adjustable lifting support apparatus of the present invention utilizes two gear sets to cooperate transmission shaft, adjust the height of bracing frame, and be accompanied by between support rising and decrement phase, can make support keep a fixed angle with respect to base at bracing frame with respect to base.In addition, adjustable lifting support apparatus of the present invention also can only utilize a gear set to cooperate transmission shaft, adjusts the height of bracing frame with respect to base, and can adjust angle between bracing frame and the base by the rotation of bracing frame.In addition, via design of the present invention, further make the cost of liftable supporter reduce, and structure is more simple.
By the detailed description of above preferred specific embodiment, hope can be known description feature of the present invention and design more, is not to come scope of the present invention is limited with the above-mentioned preferred specific embodiment that is disclosed.On the contrary, its objective is that hope can contain the arrangement of various changes and identity property in the scope of claim of the present invention.