Electric support and screen device using same

Abstract

The invention provides an electric support which is used for supporting a display screen and comprises a support structure, a strain detection unit and a driving module which is arranged in the support structure and used for driving the support structure or the display screen. The support structure comprises a supporting column, a rear cantilever pivoted to the supporting column and a front cantilever pivoted to the rear cantilever and the display screen. The strain detection unit is electrically connected with the driving module and is arranged at at least one of a first detection position in the supporting column, a second detection position at the pivot joint of the rear cantilever and the supporting column, a third detection position at the pivot joint of the rear cantilever and the front cantilever, and a fourth detection position at the pivot joint of the front cantilever and the display screen. The strain detection unit detects the change of stress applied to the support structure or the display screen, and controls the driving module to drive the support structure or the display screen and make the display screen act according to the change of stress applied to the support structure or the display screen.

Description

Technical Field

[0001] This invention relates to an electric support and a screen device, and more particularly to an electric support and a screen device thereof that drive the screen to operate based on stress changes applied to the electric support or the screen detected by a strain detection unit. Background Technology

[0002] With the advancement of technology, electrically adjustable displays have become widely used in daily life. The common design integrates a motor within the support structure that holds the screen, using a screw / gear mechanism to raise or lower it, allowing users to easily adjust the screen to a comfortable viewing or operating height. However, during this adjustment process, the screen is prone to colliding with objects (such as desktop items) or getting caught on cables, often resulting in damage or even injury to the user. Furthermore, this design prevents users from adjusting the screen height manually, violating user intuition and causing significant inconvenience in operation. Summary of the Invention

[0003] Therefore, the object of the present invention is to provide an electric bracket and a display screen device that drive the display screen to operate based on the stress change applied to the electric bracket or display screen detected by the strain detection unit, so as to solve the above-mentioned problems.

[0004] According to one embodiment, the motorized bracket of the present invention is suitable for connecting a display screen. The motorized bracket includes: a bracket structure including: a support column; a rear cantilever pivotally connected to the support column; and a front cantilever pivotally connected between the rear cantilever and the display screen.

[0005] At least one drive module is disposed within the bracket structure for driving the bracket structure or the display screen and causing the display screen to actuate; and

[0006] At least one strain detection unit is electrically connected to the drive module and is disposed at at least one of the following locations: a first detection position located within the support column, a second detection position located at the pivot joint between the rear cantilever and the support column, a third detection position located at the pivot joint between the rear cantilever and the front cantilever, and a fourth detection position located at the pivot joint between the front cantilever and the display screen. The strain detection unit detects stress changes applied to the support structure or the display screen and controls the drive module according to the stress changes to drive the support structure or the display screen and make the display screen actuate.

[0007] In a preferred embodiment, the support column is vertically and flexibly mounted on the plane, the strain detection unit is located at the first detection position, and the strain detection unit is a planar load cell that presses against the drive module or is suspended above the drive module.

[0008] The strain detection unit detects the stress change when the display screen is subjected to downward force, and controls the drive module to drive the support column to move downward, so that the display screen drops.

[0009] The strain detection unit detects the stress change when the display screen is subjected to upward force, and controls the drive module to drive the support column to move upward, so that the display screen rises.

[0010] In a preferred embodiment, the support column is vertically and flexibly mounted on a plane, the strain detection unit is located at the second detection position, and the strain detection unit is a planar load cell that presses against the pivot axis between the rear cantilever and the support column.

[0011] The strain detection unit detects the stress change when the display screen is subjected to downward force, and controls the drive module to drive the support column to move downward, so that the display screen drops.

[0012] The strain detection unit detects the stress change when the display screen is subjected to upward force, and controls the drive module to drive the support column to move upward, so that the display screen rises.

[0013] In a preferred embodiment, the display screen is pivotally connected to the front cantilever and is vertically pivotable relative to the plane. The strain detection unit is disposed at the fourth detection position, and the strain detection unit is a planar load cell or a torsional load cell connected to the pivot axis of the front cantilever and the display screen or pressed against the underside of the pivot axis. When the display screen is subjected to a force in the vertical pivot direction, the strain detection unit detects the stress change and controls the drive module to drive the bracket structure or the display screen to make the display screen pivot vertically.

[0014] In a preferred embodiment, the display screen is pivotally connected to the front cantilever and is horizontally deflectable relative to the plane. The strain detection unit is disposed at the fourth detection position, and the strain detection unit is a torsional load cell connected to the pivot axis of the front cantilever and the display screen. When the display screen is subjected to a force in the horizontal pivot direction, the strain detection unit detects the stress change and controls the drive module to drive the bracket structure or the display screen to horizontally deflect the display screen.

[0015] In a preferred embodiment, the display screen is pivotally connected to the front cantilever and is horizontally deflectable relative to the plane. The strain detection unit is disposed at the third detection position, and the strain detection unit is a torsional load cell connected to the pivot axis of the front cantilever and the rear cantilever. When the display screen is subjected to a force in the horizontal pivot direction, the strain detection unit detects the stress change and controls the drive module to drive the bracket structure or the display screen to horizontally deflect the display screen.

[0016] In a preferred embodiment, the support column is pivotally mounted on a plane, the strain detection unit is located at the first detection position, and the strain detection unit is a torsional load cell that presses against the drive module or is suspended above the drive module; the strain detection unit detects the stress change when the display screen is subjected to a force in the horizontal pivoting direction, and controls the drive module to drive the support structure or the display screen to pivot, so that the display screen deflects horizontally.

[0017] In a preferred embodiment, the display screen is pivotally connected to the front cantilever so as to be vertical relative to the plane and can be flipped back and forth. The strain detection unit is disposed at the fourth detection position, and the strain detection unit is a planar load cell or a torsional load cell and is connected to the pivot axis of the front cantilever and the display screen or pressed against the underside of the pivot axis.

[0018] The strain detection unit detects the stress change when the display screen is subjected to a force in the vertical flipping direction, and controls the drive module to drive the support structure or the display screen to flip the display screen. In a preferred embodiment, the strain detection unit detects the stress change when the support structure or the display screen is subjected to at least one force in the slapping direction, and controls the drive module to drive the support structure or the display screen to operate or stop operating based on the frequency of the detected stress change.

[0019] In a preferred embodiment, the strain detection unit detects the stress change when the display screen is subjected to a force opposite to the direction of operation of the display screen, and controls the drive module to drive the support structure or the display screen and cause the display screen to stop operating or operate in the opposite direction.

[0020] According to another embodiment, the screen device of the present invention includes a display screen and an electric support as described above.

[0021] In summary, compared to previous technologies that only used a drive motor to raise and lower the display screen without allowing users to directly adjust the screen height, this invention uses a strain detection unit to detect stress changes applied to the electric bracket or display screen and control the display screen accordingly. This allows users to directly apply force by hand and adjust the display screen electrically to a suitable viewing or operating position, thus conforming to user intuition and significantly improving the convenience of operation and adjustment of the electric bracket. Attached Figure Description

[0022] Figure 1 This is a perspective view of a screen device according to one embodiment of the present invention.

[0023] Figure 2 for Figure 1 A side view diagram of the screen device.

[0024] Figure 3 This is a side view of the screen device according to another embodiment of the present invention, when the strain detection unit is suspended above the drive module at a first detection position.

[0025] Figure 4 This is a side view of a screen device according to another embodiment of the present invention, with the strain detection unit positioned at the second detection position.

[0026] Figure 5 This is a side view of a screen device according to another embodiment of the present invention, with the strain detection unit set at the third detection position.

[0027] Figure 6 This is a side view of a screen device according to another embodiment of the present invention, with the strain detection unit set at the fourth detection position.

[0028] Figure 7 This is a side view of a screen device according to another embodiment of the present invention, with the strain detection unit positioned at the first detection position.

[0029] Figure 8 This is a side view of a screen device according to another embodiment of the present invention, with the strain detection unit set at the fourth detection position.

[0030] Figure 9 This is a side view of a screen device according to another embodiment of the present invention, with the strain detection unit set at the fourth detection position. Detailed Implementation

[0031] The following description, accompanied by illustrations, illustrates the technical content of the present invention through specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different embodiments. Various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. In particular, the configuration design of various elements in the drawings (such as the configuration position and quantity of strain detection units / drive modules, the drive mechanism design of drive modules, etc.) are for illustrative purposes only and do not represent the actual implementation of the present invention.

[0032] Please see Figure 1 as well as Figure 2 , Figure 1 This is a perspective view of a screen device 10 according to an embodiment of the present invention. Figure 2 for Figure 1 A side view of the screen device 10. (See diagram below.) Figure 1 as well as Figure 2 As shown, the screen device 10 is preferably a screen device with a motorized bracket adjustment function and includes a display screen 12 (e.g., an LCD screen, but not limited thereto) and a motorized bracket 14. The motorized bracket 14 includes a bracket structure 16, a drive module 18, and a strain detection unit 20 (which is a strain sensor made using a strain gauge, such as a load cell). Figure 2 (Simplified by dashed lines).

[0033] The display screen 12 can be preferably connected via a bracket cantilever to a surface that is upright and fixed to a plane (e.g., Figure 2 The support column 22 on the support table 11 (as shown) is assembled to suspend the screen 12 above the plane. However, the present invention is not limited to the above-described upright support design. Other support column connection designs can also be used (for example, the support column 22 can be fixed to the ceiling to hang the display screen 12 below the ceiling, or fixed to a vertical wall to allow the display screen 12 to extend and hang from the side of the vertical wall). The relevant descriptions can be deduced from the following descriptions and will not be repeated here.

[0034] Depend on Figure 1 as well as Figure 2 As can be seen, the bracket structure 16 includes a support column 22, a rear cantilever 24, and a front cantilever 26. The rear cantilever 24 is pivotally connected between the support column 22 and the front cantilever 26, and the front cantilever 26 is pivotally connected to the display screen 12 (e.g., via an adapter plate conforming to the international standard VESA, the relevant description of which is common in the prior art and will not be repeated here). The drive module 18 can be disposed within the bracket structure 16 to drive the bracket structure 16 and actuate the display screen 12 (e.g., by driving a drive motor through a screw gear linkage mechanism). Figure 2 (Simplified by dashed lines, the drive module 18 may consist of a motor 1, a gearbox 2, and a screw 3, but is not limited thereto; related descriptions are common in prior art and will not be repeated here.) The strain detection unit 20 may be electrically connected to the drive module 18 and disposed within the screen device 10 at a location capable of detecting stress changes applied to the support structure 16 or the display screen 12. For example, it may be disposed at at least one of the following locations: within the support column 22, at the pivot joint between the rear cantilever 24 and the support column 22, at the pivot joint between the rear cantilever 24 and the front cantilever 26, and at the pivot joint between the front cantilever 26 and the display screen 12. In this way, through the pivotal design between the display screen 12 and the support structure 16 and the strain sensing design using the strain detection unit 20 to detect the stress changes received by the support structure 16 or the display screen 12, the strain detection unit 20 can control the drive module 18 to drive the support structure 16 or the display screen 12 and make the display screen 12 move to a distance / angle suitable for the user to view or operate, based on the stress changes it detects.

[0035] For example, such as Figure 2As shown, in an embodiment where the support column 22 is vertically and heightably mounted on the support table 11 (e.g., fixed to the support table 11 by clamping or screwing, but not limited thereto), the strain detection unit 20 is located at a first detection position P1 within the support column 22, and the strain detection unit 20 is a planar load cell pressing against the drive module 18, when the user wants to lower the height of the display screen 12 and directly applies downward pressure Fdown to the display screen 12 (at this time, the display screen 12 is subjected to downward force), the strain detection unit 20 can detect the downward force Fdown1 applied to the support column 22 by the pressed display screen 12 through the rear cantilever 24 and the front cantilever 26, and generate a drive signal according to the stress change of the increased downward pressure to control the horse. The motor 1 rotates accordingly, driving the support column 22 downward via the gearbox 2 and screw 3, so that the display screen 12 is lowered to a height suitable for the user to view or operate. On the other hand, when the user wants to raise the height of the display screen 12 and directly applies an upward force Fup to raise the display screen 12 (at this time, the display screen 12 is subjected to upward force), the strain detection unit 20 can detect the upward component force Fup1 applied to the support column 22 by the raised display screen 12 via the rear cantilever 24 and the front cantilever 26, and generate a drive signal according to the stress change of the lifting. This controls the motor 1 to rotate accordingly, driving the support column 22 upward via the gearbox 2 and screw 3, so that the display screen 12 is raised to a height suitable for the user to view or operate. It should be noted that the above design is not limited to the embodiment in which the drive module drives the support column to rise and fall. It can also be applied to the embodiment in which the drive module 18 drives the rear cantilever 24 and the front cantilever 26 to move forward, backward and left and right via the support column 22, thereby further improving the ease of operation and intuitiveness of the screen device 10 in adjusting the screen to perform three-axis movements. The relevant descriptions can be deduced by analogy from the above embodiments, and will not be repeated here.

[0036] With the above design, compared to the previous technology that only used a drive motor to drive the display screen to rise and fall and did not allow the user to directly adjust the height of the display screen, the present invention uses a strain detection unit to detect the stress changes applied to the electric bracket or the display screen and control the operation of the display screen accordingly. This allows the user to directly apply force by hand and adjust the display screen to a suitable position for viewing or operation, which conforms to the user's operating intuition and greatly improves the convenience of operation and adjustment of the electric bracket.

[0037] It is worth noting that the location of the strain detection unit is not limited to the above embodiments. For example, please refer to... Figure 3This is a side view of the screen device 10 according to another embodiment of the present invention, when the strain detection unit 20 is suspended above the drive module 18 at the first detection position P1'. Components in this embodiment that have the same number as those mentioned in the above embodiments represent components with the same or similar structures and functions, which will not be described further here. Figure 3 As shown, in an embodiment where the support column 22 is vertically detachable from the support tabletop 11, the strain detection unit 20 is located at a first detection position P1' within the support column 22, and the strain detection unit 20 is a planar load cell suspended above the drive module 18, when the user wants to lower the height of the display screen 12 and directly applies downward pressure Fdown to press down the display screen 12, the strain detection unit 20 can detect the downward pressure component Fdown1' and generate a drive signal based on the detected stress change to control the drive module 18 to drive the support column 22 to move downward; on the other hand, when the user wants to raise the height of the display screen 12 and directly applies upward force Fup to raise the display screen 12, the strain detection unit 20 can detect the upward force Fup1' and generate a drive signal based on the detected stress change to control the drive module 18 to drive the support column 22 to move upward. In another embodiment, the strain detection unit 20 can also be set at a position such as... Figure 4 The second detection position P2 shown is located below the pivot axis of the rear cantilever 24 and the support column 22. Its related description can be deduced by analogy with the above embodiment, and will not be repeated here.

[0038] In addition, the present invention can also be applied to embodiments in which force is applied to drive the horizontal deflection of a display screen. For example, please refer to [link to relevant documentation]. Figure 5 This is a side view of the screen device 100 according to another embodiment of the present invention when the strain detection unit 20 is set at the third detection position P3. In this embodiment, elements with the same numbers as those mentioned in the above embodiments represent elements with the same or similar structures and functions, which will not be described again here. Figure 5 As shown, the screen device 100 includes a display screen 12 and a motorized bracket 102. The motorized bracket 102 includes a bracket structure 16 and a drive module 104. Figure 5(The image is simplified with dashed lines. For example, a drive mechanism consisting of a motor, hinge, and gear set can be used, but this is not a limitation.) A strain detection unit 20 is included. The display screen 12 is pivotally connected to the front cantilever 26 so that it can be horizontally deflected relative to the supporting tabletop 11. The strain detection unit 20 is a torsion load cell and is located at a third detection position P3 at the pivot point between the rear cantilever 24 and the front cantilever 26 (e.g., at the horizontal pivot axis connecting the front cantilever 26 and the rear cantilever 24). The drive module 104 is located at the pivot point between the rear cantilever 24 and the front cantilever 26. Therefore, when using... When a user directly applies force to push the display screen 12 in a horizontal clockwise direction S1 or a horizontal counterclockwise direction S2, causing the display screen 12 to be subjected to a force in the horizontal pivot direction, the strain detection unit 20 can detect the leftward deflection force FL or rightward deflection force FR applied to the rear cantilever 24 by the front cantilever 26, and generate a drive signal according to the detected stress change to control the drive module 104 to adjust the relative angle between the rear cantilever 24 and the front cantilever 26, so that the display screen 12 is horizontally deflected to a position suitable for the user to view or operate.

[0039] Alternatively, please refer to Figure 6 This is a side view of the screen device 150 according to another embodiment of the present invention when the strain detection unit 20 is set at the fourth detection position P4. Components in this embodiment that have the same number as those mentioned in the above embodiments represent components with the same or similar structures and functions, which will not be described again here. Figure 6 As shown, the screen device 150 includes a display screen 12 and a motorized bracket 152. The motorized bracket 152 includes a bracket structure 16 and a drive module 154. Figure 6 The image is simplified with dashed lines (e.g., a drive mechanism consisting of a motor, hinge, and gear set can be used, but is not limited to this), and a strain detection unit 20. The display screen 12 is pivotally connected to the front cantilever 26 so that it can be horizontally deflected relative to the supporting tabletop 11. The strain detection unit 20 is a torsion load cell and is located at the fourth detection position P4 at the pivot point between the front cantilever 26 and the display screen 12 (e.g., at the horizontal pivot axis connecting the front cantilever 26 and the display screen 12). The drive module 154 is located inside the front cantilever 26, thereby detecting when the user directly... When the display screen 12 is pushed to deflect in the horizontal clockwise direction S1 or the horizontal counterclockwise direction S2, causing the display screen 12 to be subjected to a force in the horizontal pivot direction, the strain detection unit 20 can detect the leftward deflection force FL' or rightward deflection force FR' applied by the display screen 12 to the front cantilever 26, and generate a drive signal according to the detected stress change to control the drive module 154 to adjust the horizontal relative angle between the display screen 12 and the front cantilever 26, so that the display screen 12 is horizontally deflected to a position suitable for the user to view or operate.

[0040] Or, please refer to Figure 7 This is a side view of the screen device 10' according to another embodiment of the present invention, when the strain detection unit 20 is set at the first detection position P1. In this embodiment, elements with the same numbers as those mentioned in the above embodiments represent elements with the same or similar structures and functions, which will not be described again here. Figure 7 As shown, the screen device 10' includes a display screen 12 and a motorized bracket 14', the motorized bracket 14' including a bracket structure 16' and a drive module 18 (in Figure 7 (The text is simplified with dashed lines; the relevant descriptions can be deduced from the above embodiments and will not be repeated here.) The support structure 16' includes a support column 22', a rear cantilever 24, and a front cantilever 26. The rear cantilever 24 is pivotally connected between the support column 22' and the front cantilever 26. In this embodiment, the support column 22' is pivotally mounted on the support table 11 so that the display screen 12 can be horizontally deflected relative to the support table 11. The strain detection unit 20 is a torsional load cell and is located at a first detection position P1 pressing against the drive module 18 (or a first detection position P1' suspended above the drive module 18). The drive module 18 is located on the support column 22'. Within 2', when the user directly applies force to push the display screen 12 to deflect in the horizontal clockwise direction S1 or the horizontal counterclockwise direction S2, causing the display screen 12 to be subjected to a force in the horizontal pivot direction, the strain detection unit 20 can detect the leftward deflection force FL” or rightward deflection force FR” applied to the support column 22' by the front cantilever 26 and the rear cantilever 24, and generate a drive signal according to the detected stress change to control the drive module 18 to drive the support column 22' to rotate horizontally (for example, by driving the support column 22' horizontally through a screw gear linkage mechanism with a drive motor), so that the display screen 12 is horizontally deflected to a position suitable for the user to view or operate.

[0041] Furthermore, this invention can also be applied to embodiments in which a display screen is vertically pivoted by applying force. For example, please refer to [link to relevant documentation]. Figure 8 This is a side view of the screen device 200 according to another embodiment of the present invention when the strain detection unit 20 is set at the fourth detection position P4'. In this embodiment, elements with the same numbers as those mentioned in the above embodiments represent elements with the same or similar structures and functions, which will not be described again here. Figure 7 As shown, the screen device 200 includes a display screen 12 and a motorized bracket 202. The motorized bracket 202 includes a bracket structure 16 and a drive module 204. Figure 8The diagram is simplified with dashed lines. For example, a drive mechanism consisting of a motor, hinge, and gear set can be used (but is not limited to this). A strain detection unit 20 is also included. The display screen 12 is pivotally connected to the front cantilever 26 so that it can pivot clockwise or counterclockwise relative to the supporting tabletop 11. The strain detection unit 20 is a torsion load cell (or a planar load cell) and is located at the fourth detection position P4' at the pivot point between the display screen 12 and the front cantilever 26 (e.g., connected to the vertical pivot axis of the front cantilever 26 and the display screen 12 or pressed against the lower part of the vertical pivot axis). The drive module 204 is located between the display screen 12 and the front cantilever 26. At the pivot point of arm 26, when the user directly applies force to push the display screen 12 to pivot in the vertical clockwise direction V1 or the vertical counterclockwise direction V2, causing the display screen 12 to be subjected to a force in the vertical pivot direction, the strain detection unit 20 can detect the vertical clockwise pivot force FV1 or the vertical counterclockwise pivot force FV2 applied by the display screen 12 to the front cantilever 26, and generate a drive signal according to the detected stress change to control the drive module 204 to actuate and adjust the vertical relative angle between the display screen 12 and the front cantilever 26, so that the display screen 12 is vertically deflected to a position suitable for the user to view or operate.

[0042] Furthermore, the present invention can also be applied to embodiments in which a display screen is driven to flip back and forth by applying force. For example, please refer to [link to relevant documentation]. Figure 9 This is a side view of the screen device 250 according to another embodiment of the present invention when the strain detection unit 20 is set at the fourth detection position P4'. Components in this embodiment that have the same number as those mentioned in the above embodiments represent components with the same or similar structures and functions, which will not be described again here. Figure 8 As shown, the screen device 250 includes a display screen 12 and a motorized bracket 252. The motorized bracket 252 includes a bracket structure 16 and a drive module 254. Figure 9The diagram is simplified with dashed lines. For example, a drive mechanism consisting of a motor, a turbine screw, and a gear set can be used (but not limited to this). A strain detection unit 20 is also included. The display screen 12 is pivotally connected to the front cantilever 26 so that it can rotate vertically back and forth relative to the supporting tabletop 11. The strain detection unit 20 is a planar load cell (or a torsional load cell) and is located at the fourth detection position P4' at the pivot point between the display screen 12 and the front cantilever 26 (e.g., connected to the rotation axis of the front cantilever 26 and the display screen 12 or pressed against the underside of the rotation axis). A drive module 254 is located between the display screen 12 and the front cantilever 26. At the pivot of the cantilever 26, when the user directly applies force to push the display screen 12 in the forward flipping direction T1 or the backward flipping direction T2, causing the display screen 12 to be subjected to a force in the vertical flipping direction, the strain detection unit 20 can detect the forward flipping force FT1 or the backward flipping force FT2 applied by the display screen 12 to the front cantilever 26, and generate a drive signal according to the detected stress change to control the drive module 254 to actuate and adjust the relative position of the display screen 12 and the front cantilever 26, so that the display screen 12 flips forward or backward to an angle suitable for the user to view or operate.

[0043] It should be noted that the force-driven display screen lifting, vertical pivoting, horizontal deflection, and forward and backward flipping mentioned in the above embodiments can be implemented individually or selectively combined. The number of drive modules and strain detection units can be adjusted accordingly to further enhance the design flexibility of the screen device of the present invention in terms of electric adjustment function. As for which application configuration is adopted, it depends on the usage requirements of the screen device of the present invention.

[0044] In practical applications, the screen devices mentioned in the above embodiments can additionally employ anti-collision designs. For example, in situations such as... Figure 2 In the illustrated embodiment, if the display screen 12 is subjected to a force opposite to its direction of operation (e.g., colliding with an object or being pulled by a cable) during the operation of the display screen 12 driven by the drive module 18 of the screen device 10, the strain detection unit 20 can detect the change in stress exerted by the display screen 12 on the support structure 16, and accordingly control the drive module 18 to drive the support structure 16 or the display screen 12, so that the display screen 12 immediately stops operating or reverses its operation to avoid further collisions or pulling, thereby effectively improving the operational safety of the screen device 10 in electric adjustment. Furthermore, the screen devices mentioned in the above embodiments can also employ a tap detection design. For example, in situations such as... Figure 2In the illustrated embodiment, when the support structure 16 or the display screen 12 is subjected to a force exerted by the user in a specific tapping direction, the screen device 10 can control the drive module 18 to drive the support structure 16 or the display screen 12 based on the frequency of stress changes detected by the strain detection unit 20, thereby causing the display screen 12 to operate or stop operating. For example, when the user wants to lift the display screen 12, the user only needs to tap the display screen 12 upwards (but not limited to this), thereby the strain detection unit 20 can detect the force exerted by the user. The stress exerted on the support structure 16 by the display screen 12 changes, thereby controlling the drive module 18 to drive the support column 22 upward, so that the display screen 12 rises to a height suitable for the user to view or operate. On the other hand, if the user wants to stop the display screen 12, they only need to tap the display screen 12 upward twice (but not limited to this). In this way, the strain detection unit 20 can detect the two stress changes and, via the drive module 18, immediately stop the display screen 12 at the height position desired by the user. As for the description of the application of the above-mentioned anti-collision design and tap detection design in other embodiments, it can be inferred from the above examples and will not be repeated here.

[0045] The present invention has been described in the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Conversely, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. An electric bracket suitable for connecting a display screen, characterized in that, The motorized support includes: a support structure, comprising: Support column; The rear cantilever is pivotally connected to the support column; and The front cantilever is pivotally connected between the rear cantilever and the display screen; At least one drive module is disposed within the bracket structure for driving the bracket structure or the display screen and causing the display screen to operate; as well as At least one strain detection unit is electrically connected to the drive module and is disposed at at least one of the following locations: a first detection position located within the support column, a second detection position located at the pivot joint between the rear cantilever and the support column, a third detection position located at the pivot joint between the rear cantilever and the front cantilever, and a fourth detection position located at the pivot joint between the front cantilever and the display screen. The strain detection unit detects stress changes applied to the support structure or the display screen and controls the drive module according to the stress changes to drive the support structure or the display screen and make the display screen actuate.

2. The electric support as described in claim 1, characterized in that, The support column is vertically and flexibly mounted on the plane. The strain detection unit is located at the first detection position. The strain detection unit is a planar load cell and is pressed against the drive module or suspended above the drive module. The strain detection unit detects the stress change when the display screen is subjected to downward force, and controls the drive module to drive the support column to move downward, so that the display screen drops. The strain detection unit detects the stress change when the display screen is subjected to upward force, and controls the drive module to drive the support column to move upward, so that the display screen rises.

3. The electric support as described in claim 1, characterized in that, The support column is vertically and flexibly mounted on the plane. The strain detection unit is located at the second detection position. The strain detection unit is a planar load cell and presses against the pivot axis of the rear cantilever and the support column. The strain detection unit detects the stress change when the display screen is subjected to downward force, and controls the drive module to drive the support column to move downward, so that the display screen drops. The strain detection unit detects the stress change when the display screen is subjected to upward force, and controls the drive module to drive the support column to move upward, so that the display screen rises.

4. The electric support as described in claim 1, characterized in that, The display screen is pivotally connected to the front cantilever and is vertically pivotable relative to the plane. The strain detection unit is located at the fourth detection position. The strain detection unit is a planar load cell or a torsional load cell and is connected to the pivot axis between the front cantilever and the display screen or pressed against the underside of the pivot axis. The strain detection unit detects the stress change when the display screen is subjected to a force in the vertical pivoting direction, and controls the drive module to drive the support structure or the display screen to make the display screen pivot vertically.

5. The electric support as described in claim 1, characterized in that, The display screen is pivotally connected to the front cantilever and is horizontally deflectable relative to the plane. The strain detection unit is located at the fourth detection position and is a torsional load cell connected to the pivot axis between the front cantilever and the display screen. The strain detection unit detects the stress change when the display screen is subjected to a force in the horizontal pivot direction, and controls the drive module to drive the bracket structure or the display screen to deflect the display screen horizontally.

6. The electric support as described in claim 1, characterized in that, The display screen is pivotally connected to the front cantilever and is horizontally deflectable relative to the plane. The strain detection unit is located at the third detection position and is a torsional load cell connected to the pivot axis of the front cantilever and the rear cantilever. The strain detection unit detects the stress change when the display screen is subjected to a force in the horizontal pivot direction, and controls the drive module to drive the bracket structure or the display screen to deflect the display screen horizontally.

7. The electric support as described in claim 1, characterized in that, The support column is pivotally mounted on the plane, the strain detection unit is located at the first detection position, and the strain detection unit is a torsion load cell that presses against the drive module or is suspended above the drive module. The strain detection unit detects the stress change when the display screen is subjected to a force in the horizontal pivoting direction, and controls the drive module to drive the support structure or the display screen to pivot, so that the display screen deflects horizontally.

8. The electric support as described in claim 1, characterized in that, The display screen is pivotally connected to the front cantilever so as to be vertical relative to the plane and can be flipped back and forth. The strain detection unit is located at the fourth detection position. The strain detection unit is a planar load cell or a torsional load cell and is connected to the pivot axis of the front cantilever and the display screen or pressed against the underside of the pivot axis. The strain detection unit detects the stress change when the display screen is subjected to a force in the vertical flipping direction, and controls the drive module to drive the support structure or the display screen to flip the display screen.

9. The electric support as described in claim 1, characterized in that, The strain detection unit detects the stress change when the support structure or the display screen is subjected to at least one force in the striking direction, and controls the drive module to drive the support structure or the display screen and make the display screen operate or stop operating based on the frequency of the detected stress change.

10. The electric support as described in claim 1, characterized in that, The strain detection unit detects the stress change when the display screen is subjected to a force opposite to the direction of the display screen's operation, and controls the drive module to drive the support structure or the display screen and cause the display screen to stop operating or operate in the opposite direction.

11. A screen device, characterized in that, Include: Display screen; and The electric bracket as described in any one of claims 1 to 10 is used to connect the display screen.

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