US20070034125A1 - Hidden electric power elevating stand structure - Google Patents
Hidden electric power elevating stand structure Download PDFInfo
- Publication number
- US20070034125A1 US20070034125A1 US11/199,885 US19988505A US2007034125A1 US 20070034125 A1 US20070034125 A1 US 20070034125A1 US 19988505 A US19988505 A US 19988505A US 2007034125 A1 US2007034125 A1 US 2007034125A1
- Authority
- US
- United States
- Prior art keywords
- rod
- stand
- braking
- lower frame
- frame bodies
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
Definitions
- the present invention relates to an improved hidden electric power elevating stand structure, and more particularly to an easy-to-install, easy-to-operate, power saving and stable elevating stand structure that can be hidden in a ceiling.
- the traditional stand for placing a videoconferencing or audio/video equipment such as an overhead projector, a speaker and an optical disk drive is not adjustable regardless of being fixed at a certain height or suspended from a ceiling.
- objects like an overhead projector usually require an adjustment of their heights according to the actual situations, and thus manufacturers design an elevating stand that can be controlled by a remote control.
- An example is depicted in FIG. 1 and disclosed in R.O.C. Pat. No. 87204069.
- the elevating stand comprises two frames, a cross frame panel installed between the two frames, and a screw rod installed at the frame panel stand, such that the frame can be ascended or descended by driving the screw rod.
- the motor consumes much electric power.
- the screw rod pushes the driving rod at the upper deck to have a linear horizontal movement, and the pushing force is consistent that will diversify the upward pushing force of the frame, which will affect the efficiency of the pushing force of the motor.
- the foregoing elevating stand structure comprises upper and lower frame bodies, upper and lower braking rod crossed with each other and installed longitudinally on the lateral sides of the upper and lower frame bodies; wherein a transversal rod is disposed at the intersection of the bottom of the lower braking rod and the upper braking rod for connecting an electric power screw rod, such that the transversal rod of the lower braking rod is sheathed into a track disposed between two longitudinal sides of the lower frame body, and the extension or withdrawal of the screw rod drive the frame body to ascend or descend respectively. Since the screw rod is moved according to the braking rod to have a consistent pushing force, such arrangement can achieve the long arm moment and power saving effects.
- the foregoing elevating stand structure includes dual bearings installed between both ends of the transversal rod at the bottom of the lower braking rod, so that the bearing is situated in the track of the lower frame body to make the braking rods to slide freely and smoothly, so as to prevent the braking rods from being shifted.
- the foregoing elevating stand structure includes symmetric microswitches disposed on the internal sides of the track of the lower frame and with an appropriate distance from each other to define a two-way limit positioning.
- the foregoing elevating stand structure installs a fixing stand, and the fixing stand has a long hole.
- the fixing stand is installed onto the ceiling, and then the elevating stand is installed onto the fixing stand.
- Such arrangement facilitates its installation and maintenance, and the long hole constitutes the adjustment of the angle of elevation.
- the foregoing elevating stand structure installs a plurality of sockets and electric connectors at the lower frame body for connecting an external power supply or a control device in a hidden manner, so as to beautify the overall external look.
- FIG. 1 is a perspective view of a prior art elevating stand
- FIG. 2 is a perspective view of an elevating stand of the present invention
- FIG. 3 is an exploded view of an elevating stand of the present invention
- FIG. 4 is a schematic view of the installation of an elevating stand of the present invention.
- FIGS. 5 to 6 are schematic views of the movements of an elevating stand of the present invention.
- the present invention comprises upper and lower frame bodies 1 , 2 , a track disposed longitudinally along the lateral sides of the upper and lower frame bodies 1 , 2 respectively, so that upper and lower braking rods 3 , 4 crossed with each other are connected to the upper and lower frame bodies 1 , 2 ; wherein transversal rods 31 , 41 are disposed separately at the top of the upper braking rod 3 and the bottom of the lower braking rod 4 , and bearings 32 , 42 are disposed separately on both ends of the transversal rods 31 , 41 , such that the bearings 32 , 42 are disposed in the tracks 11 , 21 respectively and can slide along the tracks 11 , 21 .
- the transversal rod 41 disposed at the bottom of the lower braking rod 4 is fixed to an electric screw rod 51 by a U-shape fixing plate 5 , so that the front end of the screw rod 51 is connected to a transversal rod 33 disposed at the intersection of the upper braking rod 3 .
- the upper and lower braking rods 3 , 4 are driven to be stacked inwardly or spread out to drive the lower frame body 2 to move vertically up and down.
- One of the tracks 21 at the internal side of the lower frame installs two microswitches disposed at an appropriate distance with each other, so that the bottom of the lower braking rod 4 presses against the two microswitches during its sliding to constitute the function of limiting the position of the braking rod 4 .
- the upper frame body 1 has a plurality of through holes 12 for installing various different sockets 81 or electric connectors 82 and connecting an external power supply or a control device.
- a support plate 102 is fixed at an appropriate distance at the bottom side of the lower frame body 2 by a plurality screws at the four corners of a fixing rod 101 .
- the upper and lower frame bodies 1 , 2 are covered by a meshed contractible hood 7 to define an elevating stand 100 , and the support plate 102 is provided for placing an object such as an overheat projector or a television.
- the screw rod 51 is an extendible component controlled by a remote control or other electric control, so that the upper and lower braking rods 3 , 4 can be stacked or spread out to define the vertical movements of the elevating stand 100 , so as to achieve the purposes of hiding the object such as the overhead projector or television as well as adjusting their heights.
- the upper and lower frame bodies 1 , 2 are provided for externally connecting various different sockets 81 and electric connectors 82 .
- an n-shape fixing stand 9 is installed onto the ceiling, and then the elevating stand 100 is installed onto the fixing stand 9 , wherein the fixing stand 9 includes a horizontal long hole 91 disposed at the front side of the side panel of the fixing stand 9 , a vertical hole 92 disposed at the rear side of the fixing stand 9 , and corresponding screw bolts 22 , 23 disposed at the long holes 91 , 92 on the side of the lower frame body 2 of the elevating stand 9 .
- the screw bolt 22 is latched into the horizontal long hole 91
- the screw bolt 23 is latched into the vertical long hole 92 for fixing the elevating stand 9 .
- the screw bolt 23 is shifted or fixed along the vertical long hole 92 for adjusting the angle of elevation.
- a plurality of positioning holes is provided for a screw (not shown in the figure) to be secured upward, so as to adjust the horizontal attachment of the elevating stand 100 with the ceiling.
- the screw rod 51 is extended or withdrawn by a remote control or other electric control device, so that the upper and lower braking rods are inwardly stacked or spread out to ascend or descend the whole elevating stand 100 .
- the elevated height can be maintained and fixed. Since the screw rod 51 is installed between the upper and lower braking rods, therefore they can be moved according to the angle of the extension or withdrawal to achieve the longer arm moment and better power saving effects that give a more flexible and smoother elevation.
Abstract
An improved hidden electric power elevating stand structure includes upper and lower symmetric frame bodies, and upper and lower braking rods crossed with each other for fixing the upper and lower frame bodies on their lateral sides longitudinally, a transversal rod disposed at the bottom of the lower braking rod, a bearing installed separately on both sides of the transversal rod, such that the bearing is connected to a sliding track on both sides of the lower frame body, an electric power screw rod connects one of the transversal rods of the lower braking rod to the intersection of the upper braking rod, so that the extension and withdrawal of the screw rod change the intersecting angle of the braking rods and adjust the elevation of the frame bodies for placing an audio/video equipment such as a projector or a speaker. Symmetric microswitches are installed on the internal side of the track at the lower frame body to define the limit position for displacement and an elevator is installed on a detachable fixing stand to facilitate the construction and adjust the angle of elevation and the level of the stand.
Description
- 1. Field of the Invention
- The present invention relates to an improved hidden electric power elevating stand structure, and more particularly to an easy-to-install, easy-to-operate, power saving and stable elevating stand structure that can be hidden in a ceiling.
- 2. Description of the Related Art
- In general, the traditional stand for placing a videoconferencing or audio/video equipment such as an overhead projector, a speaker and an optical disk drive is not adjustable regardless of being fixed at a certain height or suspended from a ceiling. Furthermore, objects like an overhead projector usually require an adjustment of their heights according to the actual situations, and thus manufacturers design an elevating stand that can be controlled by a remote control. An example is depicted in
FIG. 1 and disclosed in R.O.C. Pat. No. 87204069. The elevating stand comprises two frames, a cross frame panel installed between the two frames, and a screw rod installed at the frame panel stand, such that the frame can be ascended or descended by driving the screw rod. Although such arrangement can overcome the prior art fixed connection that the height of the stand cannot be adjusted, yet the structure of this sort still has the following shortcomings: - 1. It is not easy to install the elevating stand. Fixing plates are secured onto the four corners of a top panel first, and then a wall anchor passes through a fixing hole of the fixing plate to fix the fixing plate onto the ceiling. Since the ceiling is often not level, and the overall structure is quite heavy (over 25 kg), therefore it requires at least three construction workers to adjust the stand. Furthermore, it is unable to fully adjust the horizontal attachment with the ceiling, which may be dangerous to the construction worker to carry out such aerial operation.
- 2. It is difficult to maintain or repair the elevating stand, since the control circuit and receiver of the remote control are installed inside the elevating stand. If the circuit breaks down and the circuit is in a close circuit, then the maintenance person cannot remove the circuit by itself, but have to remove the whole set for maintenance.
- 3. The motor consumes much electric power. The screw rod pushes the driving rod at the upper deck to have a linear horizontal movement, and the pushing force is consistent that will diversify the upward pushing force of the frame, which will affect the efficiency of the pushing force of the motor.
- It is a primary objective of the present invention to provide an improved hidden electric power elevating stand structure, so that the elevating stand can have an easier installation, a smoother transmission, and an adjustable angle of elevation.
- The foregoing elevating stand structure comprises upper and lower frame bodies, upper and lower braking rod crossed with each other and installed longitudinally on the lateral sides of the upper and lower frame bodies; wherein a transversal rod is disposed at the intersection of the bottom of the lower braking rod and the upper braking rod for connecting an electric power screw rod, such that the transversal rod of the lower braking rod is sheathed into a track disposed between two longitudinal sides of the lower frame body, and the extension or withdrawal of the screw rod drive the frame body to ascend or descend respectively. Since the screw rod is moved according to the braking rod to have a consistent pushing force, such arrangement can achieve the long arm moment and power saving effects.
- The foregoing elevating stand structure includes dual bearings installed between both ends of the transversal rod at the bottom of the lower braking rod, so that the bearing is situated in the track of the lower frame body to make the braking rods to slide freely and smoothly, so as to prevent the braking rods from being shifted.
- The foregoing elevating stand structure includes symmetric microswitches disposed on the internal sides of the track of the lower frame and with an appropriate distance from each other to define a two-way limit positioning.
- The foregoing elevating stand structure installs a fixing stand, and the fixing stand has a long hole. The fixing stand is installed onto the ceiling, and then the elevating stand is installed onto the fixing stand. Such arrangement facilitates its installation and maintenance, and the long hole constitutes the adjustment of the angle of elevation.
- The foregoing elevating stand structure installs a plurality of sockets and electric connectors at the lower frame body for connecting an external power supply or a control device in a hidden manner, so as to beautify the overall external look.
-
FIG. 1 is a perspective view of a prior art elevating stand; -
FIG. 2 is a perspective view of an elevating stand of the present invention; -
FIG. 3 is an exploded view of an elevating stand of the present invention; -
FIG. 4 is a schematic view of the installation of an elevating stand of the present invention; and - FIGS. 5 to 6 are schematic views of the movements of an elevating stand of the present invention.
- Referring to
FIGS. 2 and 3 , the present invention comprises upper andlower frame bodies lower frame bodies lower braking rods lower frame bodies transversal rods upper braking rod 3 and the bottom of thelower braking rod 4, andbearings transversal rods bearings tracks tracks - The
transversal rod 41 disposed at the bottom of thelower braking rod 4 is fixed to anelectric screw rod 51 by aU-shape fixing plate 5, so that the front end of thescrew rod 51 is connected to atransversal rod 33 disposed at the intersection of theupper braking rod 3. When thescrew rod 51 is extended or withdrawn, the upper andlower braking rods lower frame body 2 to move vertically up and down. - One of the
tracks 21 at the internal side of the lower frame installs two microswitches disposed at an appropriate distance with each other, so that the bottom of thelower braking rod 4 presses against the two microswitches during its sliding to constitute the function of limiting the position of thebraking rod 4. - The
upper frame body 1 has a plurality of throughholes 12 for installing variousdifferent sockets 81 orelectric connectors 82 and connecting an external power supply or a control device. - A
support plate 102 is fixed at an appropriate distance at the bottom side of thelower frame body 2 by a plurality screws at the four corners of afixing rod 101. - With the foregoing components, the upper and
lower frame bodies contractible hood 7 to define anelevating stand 100, and thesupport plate 102 is provided for placing an object such as an overheat projector or a television. Thescrew rod 51 is an extendible component controlled by a remote control or other electric control, so that the upper andlower braking rods elevating stand 100, so as to achieve the purposes of hiding the object such as the overhead projector or television as well as adjusting their heights. - Referring to
FIG. 4 for the assembledelevating stand 100 of the present invention, the upper andlower frame bodies different sockets 81 andelectric connectors 82. When theelevating stand 100 is installed, an n-shape fixing stand 9 is installed onto the ceiling, and then theelevating stand 100 is installed onto thefixing stand 9, wherein thefixing stand 9 includes a horizontallong hole 91 disposed at the front side of the side panel of thefixing stand 9, avertical hole 92 disposed at the rear side of thefixing stand 9, andcorresponding screw bolts long holes lower frame body 2 of theelevating stand 9. Thescrew bolt 22 is latched into the horizontallong hole 91, and thescrew bolt 23 is latched into the verticallong hole 92 for fixing theelevating stand 9. Thescrew bolt 23 is shifted or fixed along the verticallong hole 92 for adjusting the angle of elevation. A plurality of positioning holes is provided for a screw (not shown in the figure) to be secured upward, so as to adjust the horizontal attachment of theelevating stand 100 with the ceiling. - Referring to
FIGS. 5 and 6 for the application of the present invention, thescrew rod 51 is extended or withdrawn by a remote control or other electric control device, so that the upper and lower braking rods are inwardly stacked or spread out to ascend or descend the wholeelevating stand 100. With the limit positioning of themicroswitches 6, the elevated height can be maintained and fixed. Since thescrew rod 51 is installed between the upper and lower braking rods, therefore they can be moved according to the angle of the extension or withdrawal to achieve the longer arm moment and better power saving effects that give a more flexible and smoother elevation. - In summation of the above description, the present invention herein complies with the patent application requirements and is submitted for patent application. However, the description and its accompanied drawings are used for describing preferred embodiments of the present invention, and it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
Claims (4)
1. An improved hidden electric power elevating stand structure, comprising upper and lower frame bodies, a track disposed longitudinally along the lateral sides of said upper and lower frame bodies respectively for sliding the top of an upper braking rod and the bottom of a lower braking rod, and said braking rods are crossed with each other and connected to said upper and lower frame bodies respectively to constitute said upper and lower braking rods to be stacked inwardly or spread out and to constitute the elevation of said elevating stand; characterized in that:
a transversal rod disposed at the bottom of said lower braking rod is coupled to a screw rod by a U-shape fixing plate, thereby the front end of said screw rod is coupled to a transversal rod disposed at the intersection of said upper braking rod, and the extension or withdrawal of said screw rod controls said upper and lower braking rods to be stacked inwardly or spread out;
a support plate is fixed at an appropriate distance from the bottom of said lower frame body by a plurality of screws disposed at the four corners of a fixing rod; and
an n-shape fixing stand includes a horizontal long hole and a vertical long hole separately and respectively disposed at the front end and rear ends of said fixing stand, such that said lower frame body is fixed onto said fixing stand by passing a screw bolt through said long holes to facilitate the installation and construction of said elevating stand, and said vertical, and said vertical long hole of said fixing stand constitutes the adjustment of an angle of elevation for said elevating stand, and a plurality of positioning holes is disposed at a top panel of said fixing stand for adjusting the horizontal attachment with a ceiling by securing said screw upward to a predetermined tightness.
2. The improved hidden electric power elevating stand structure of claim 1 , wherein said upper and lower braking rods include a transversal rod at both ends, and separately have a bearing such that said bearing are sheathed into said track of said frame bodies for facilitating a free and smooth slide.
3. The improved hidden electric power elevating stand structure of claim 1 , wherein said upper and lower frame bodies separately have different sockets and connectors for externally connecting a power supply or a control device.
4. The improved hidden electric power elevating stand structure of claim 1 , wherein said upper and lower frame bodies separately have a meshed contractible hood for covering said upper and lower frame bodies to provide ventilation for said elevating stand.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/199,885 US20070034125A1 (en) | 2005-08-09 | 2005-08-09 | Hidden electric power elevating stand structure |
Applications Claiming Priority (1)
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US11/199,885 US20070034125A1 (en) | 2005-08-09 | 2005-08-09 | Hidden electric power elevating stand structure |
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US20070034125A1 true US20070034125A1 (en) | 2007-02-15 |
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US11/199,885 Abandoned US20070034125A1 (en) | 2005-08-09 | 2005-08-09 | Hidden electric power elevating stand structure |
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US20080205007A1 (en) * | 2007-02-26 | 2008-08-28 | Arden Yang | Elevating device for loading electronic equipment thereon |
US8033229B1 (en) | 2008-07-07 | 2011-10-11 | Mccanna Chuck | Adjustable video and still image projector stand |
US8424883B1 (en) * | 2011-01-16 | 2013-04-23 | Richard Ramos | Utility cart |
US8544391B2 (en) * | 2011-12-12 | 2013-10-01 | Ancra International Llc | Variable height support |
US20140084227A1 (en) * | 2012-09-24 | 2014-03-27 | Sopap Automation Sas | Motorized vertically adjustable lifting table, for example for use in body work construction in the motor vehicle industry |
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US20150159803A1 (en) * | 2013-12-06 | 2015-06-11 | Cal-Comp Electronics & Communications Company Limited | Variable height trolley and height displaying assembly thereof |
US20160106607A1 (en) * | 2014-10-21 | 2016-04-21 | REAC Poland Sp. z o.o. | Jack, especially for the change of the position of the seat base in a wheelchair |
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