Top type television support and control method thereof

Abstract

The invention relates to the technical field of television supports, in particular to a top-type television support and a control method thereof.The top-type television support comprises a top frame, a support, a positioning assembly, a driving assembly and a lifting assembly, a limiting plate is arranged at the front end of the top frame, the top end of the support is rotationally connected with a second limiting frame of the limiting plate through a second positioning shaft, and the positioning assembly comprises a positioning frame and a first limiting frame; the positioning frame rotates around the first positioning shaft; the lifting assembly achieves automatic unfolding and folding of the support through a second motor, a winding shaft and a pull rope and is matched with the magnetic attraction assembly for positioning. The driving assembly adjusts the angle of the positioning frame through a first motor, a lead screw and the like, the limiting assembly comprises a buffer structure, the control method comprises the steps of installation and electrification, use state switching, angle adjustment and storage, full-automatic operation is achieved, the problems that in the prior art, manual operation is difficult, and the applicability is low are solved, the structure is stable, the service life of parts is long, and the device is suitable for small apartment scenes.

Description

Technical Field

[0001] This invention relates to the field of television bracket technology, specifically to a top-mounted television bracket and its control method. Background Technology

[0002] As a device that can make full use of ceiling space, ceiling-mounted TV brackets are widely used in small living rooms, bedrooms and other scenarios. Their core value lies in the fact that when the TV is not in use, the device can be stored under the ceiling, reducing the occupation of indoor space and improving the cleanliness and aesthetics of the environment. Therefore, the demand for ease of operation and structural stability is becoming increasingly prominent.

[0003] In the prior art, patent CN222849000U discloses a ceiling-mounted TV bracket, belonging to the field of display bracket technology. The bracket includes a ceiling plate installed on the ceiling, a bracket for mounting the display device (rotatably connected to the ceiling plate), and force-applying components at both ends that are rotatably connected to the ceiling plate and the bracket, respectively; the bracket can be opened and closed by manually operating the force-applying components to drive the bracket to rotate relative to the ceiling plate.

[0004] However, the existing structure described above has significant drawbacks and shortcomings, as follows: The structure relies on manual force application, making it difficult to operate: The unfolding and closing of the structure depends entirely on the user to manually drive the force application component. However, display devices such as televisions are usually quite heavy (especially large-screen televisions). During manual lifting or pushing and pulling, the user must overcome the weight of the device, which is laborious and can easily cause the device to shake due to uneven force application, posing a safety hazard.

[0005] Poor adaptability for high-altitude installation: The ceiling bracket is installed below the ceiling, and the height is usually beyond the convenient operation range of most users. For shorter people or the elderly, it is difficult to reach the force-applying parts for operation, which limits its applicability. In addition, there is no buffer design for pulling force during storage. When the TV is heavy, the force-applying parts or connecting parts may be worn due to excessive instantaneous force, which shortens the service life.

[0006] In view of the shortcomings of the existing technology, there is an urgent need for a top-mounted TV bracket that can achieve automated operation, improve structural stability and applicability, so as to solve the problems of difficult manual operation, low adaptability to high places, and insufficient stability. Therefore, this invention proposes a top-mounted TV bracket and its control method. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a top-mounted TV bracket and its control method.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a top-mounted TV bracket, comprising a top frame, a bracket, and a positioning component, and further comprising a driving component and a lifting component; A limiting plate is fixedly installed at the front end of the top frame, and second limiting frames are provided on both sides of the limiting plate. The bracket is located at the front end of the top frame, and a second positioning shaft is fixedly installed at the top end of the bracket. The two ends of the second positioning shaft are inserted into the second limiting frame and are rotatably connected to the second limiting frame through bearings. The positioning component includes a positioning frame and a first limiting frame. The positioning frame is located on the front side of the bracket. Mounting frames are provided on both sides of the positioning frame. A first positioning shaft is fixedly provided at the bottom end of the positioning frame. Both ends of the first positioning shaft are inserted into the first limiting frame and are rotatably connected to the first limiting frame through bearings. The first limiting frame is fixed at the bottom end of the bracket. The lifting assembly includes a second motor, a take-up shaft, and a pull rope. The output end of the second motor is connected to one end of the take-up shaft. A limiting component is provided at the rear end of the bracket. A placement groove is provided below the top frame. The take-up shaft is located at the rear end of the placement groove. One end of the pull rope is connected to the take-up shaft, and the other end is connected to the limiting component. A buffer structure is provided on the limiting component. Two positioning plates are symmetrically arranged on both sides of the top of the bracket, and the positioning plates are equipped with magnetic suction components for limiting the positioning plates. The drive assembly drives the positioning frame to rotate around the central axis of the first positioning shaft by a specified angle, and a limit block is provided on the inner side of the top of the positioning frame.

[0009] To facilitate power connection, the present invention includes the following improvements: the limiting plate and the top frame are integrated, the bracket is provided with a wiring groove with multiple wiring holes, the limiting plate is also provided with wiring holes, and a wiring socket is fixedly installed at the front end of the placement groove.

[0010] To improve the stability of the bracket during storage, the present invention includes the following improvements: multiple pulley frames are fixedly installed inside the placement slot, and pulley bodies are provided on the pulley frames. The multiple pulley bodies are used to support the pull rope. The second motor is fixed on one side of the top frame. The two ends of the winding shaft are provided with rotating shafts that are inserted into the top frame. The rotating shafts are rotatably connected to the top frame through bearings. The output end of the second motor is provided with a motor shaft that passes through the top frame and is connected to the rotating shaft.

[0011] To improve the service life of the pull rope, the present invention includes the following improvements: the limiting component includes a limiting shaft, a limiting ring, and two third limiting frames. The limiting ring is penetrated by the limiting shaft and is rotatably connected to the limiting shaft via a bearing. The bottom end of the pull rope is connected to the limiting ring. Both third limiting frames are fixed to the rear end of the bracket by screws. The inner side of the third limiting frame is provided with a positioning groove. A buffer ring is fixedly installed on the inner wall of the positioning groove. Both ends of the limiting shaft are inserted into the interior of the positioning groove and penetrate the buffer ring. The outer wall of the limiting shaft is tightly fitted with the inner wall of the buffer ring.

[0012] To facilitate positioning of the bracket after unfolding, the present invention includes the following improvements: the magnetic suction assembly includes a magnetic suction controller and two magnetic suction bases. The two magnetic suction bases are fixed to the inner side of the limiting plate, and the magnetic suction controller is fixed to the outer side of the limiting plate. An electromagnet is embedded inside the magnetic suction base. The magnetic suction controller and the electromagnet are connected by a wire passing through the limiting plate. The two positioning plates are welded to both sides of the bracket, and the positioning plates are made of iron.

[0013] To facilitate the adjustment of the angle of the positioning frame, the present invention includes the following improvements: a vertical sliding groove is provided at the rear end of the positioning frame, an opening is provided at the bottom of the sliding groove, and two limiting grooves are symmetrically provided on the inner wall of the sliding groove; The drive assembly includes a support frame, a first motor, and a drive block. The support frame is fixed to the rear end of the bracket and located at the bottom of the bracket. The first motor is installed at the rear end of the support frame. An electromagnetic brake is provided inside the support frame. A slot is provided at the bottom of the bracket. The drive block is inserted into the slot and slidably connected to the slot. The cross-section of the drive block is rectangular. A threaded groove is provided inside the drive block. A drive shaft that passes through the electromagnetic brake is provided at the output end of the first motor. A lead screw that is inserted into the threaded groove is provided at the end of the drive shaft away from the first motor and is threadedly connected to the drive block. The front end of the drive block is inserted into the sliding groove and slidably connected to the sliding groove. A drive rod that is inserted into the limiting groove and slidably connected to the limiting groove is provided at the front end of the drive block. The drive rod is a cylindrical structure.

[0014] A method for controlling a top-mounted TV bracket includes the following steps: Step 1: Installation and power-on; The top bracket is fixed to the ceiling with bolts, and the TV is fixed to the front of the positioning bracket and mounting bracket with screws. The power cords of the TV, the first motor, the electromagnetic brake, the magnetic controller, and the second motor are passed through the wiring holes in the wiring slot and connected to the wiring socket at the front of the placement slot to power on each electrical device. At this time, the bracket is initially parallel to the top bracket, the TV is in the storage state, and the first motor is located inside the placement slot. Step 2: Switch to usage mode; The second motor is started by wireless remote control, which drives the winding shaft to rotate and unwinds the pull rope through the pulley frame. At the same time, the magnetic controller is activated, which energizes the electromagnet to generate magnetic force. As the pull rope is unwound, the bracket rotates around the central axis of the second positioning shaft under the action of gravity until the bracket is in a vertical position. At this time, the positioning plates on both sides of the bracket come into contact with the electromagnet and are attracted and fixed by magnetic attraction, thus completing the switch of the use state.

[0015] Furthermore, the present invention includes the following operational steps: Step 3: Adjust the tilt angle of the TV; After step 2 is completed, the first motor is started by wireless remote control, which drives the lead screw to rotate, causing the drive block to slide with the drive rod in the limit groove, thereby driving the positioning frame to rotate around the central axis of the first positioning shaft to the specified angle; after the angle is adjusted, the electromagnetic brake is activated to lock the drive shaft and fix the angle of the positioning frame. Step 4: Switch to storage mode; The electromagnet is de-energized via wireless remote control, releasing the magnetic attraction between the positioning plate and the electromagnet; the second motor is started, driving the winding shaft to wind the pull rope, which pulls the bracket to rotate in the opposite direction around the central axis of the second positioning shaft until the bracket and the top frame are parallel again; during the winding process, the buffer ring buffers the starting pull force at the limit ring, completing the switching of the storage state.

[0016] Compared with the prior art, the present invention provides a top-mounted TV bracket and its control method, which has the following beneficial effects: Achieve fully automated operation and solve the pain point of "manual force application": The lifting assembly, consisting of a second motor, a winding shaft, and a pull rope, enables the automatic switching of the bracket from storage to use. The drive assembly (first motor, lead screw, drive block, etc.) enables the electric adjustment of the TV's tilt angle, eliminating the need for manual lifting or pushing, making it particularly suitable for high-altitude installation scenarios and solving the problems of "high difficulty in manual operation and low applicability" in existing technologies.

[0017] High structural stability and reliable load-bearing capacity: The magnetic assembly (magnetic controller, magnetic base, electromagnet, positioning plate) further secures the unfolded bracket by adsorption between the electromagnet and the iron positioning plate, preventing wobbling; the electromagnetic brake can lock the drive shaft immediately to ensure that the positioning frame does not shift after the angle is adjusted.

[0018] Detailed design extends component lifespan and reduces wear and tear: The pull rope is unwound or wound up under the support of the pulley body on the pulley frame, reducing friction and wear; the buffer ring in the limit assembly buffers the starting pull force when the pull rope is wound up, preventing the pull rope from breaking; the drive block has a rectangular cross-section and slides into the slot, and the drive rod has a cylindrical structure and slides into the limit slot, ensuring that the drive process is smooth and reducing component wear; the combination of wiring slots, wiring holes and wiring sockets makes the wiring standardized and orderly, reducing the risk of circuit failure. Attached Figure Description

[0019] Figure 1 This is a first-view three-dimensional structural diagram of the present invention; Figure 2 This is a second-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the third-view three-dimensional structure of the present invention; Figure 4For the present invention Figure 2 The main view; Figure 5 This is a three-dimensional structural diagram of the positioning component in this invention; Figure 6 For the present invention Figure 5 The main view; Figure 7 This is a schematic diagram of the mating structure between the lead screw and the drive block in this invention; Figure 8 This is a schematic diagram of the limiting groove in the present invention; Figure 9 This is a schematic diagram of the installation structure of the buffer ring in this invention; Figure 10 This is a schematic diagram of the installation structure of the electromagnet in this invention; In the diagram: 1. Top frame; 2. Bracket; 3. Positioning frame; 4. First motor; 5. Support frame; 6. Empty slot; 7. Drive block; 8. Lead screw; 9. Limiting slot; 10. Slide groove; 11. Opening; 12. Drive rod; 13. First positioning shaft; 14. First limiting frame; 15. Limiting block; 16. Wiring hole; 17. Wiring slot; 18. Limiting plate; 19. Magnetic controller; 20. Magnetic base; 21. Electromagnet; 22. Second positioning shaft; 23. Second limiting frame; 24. Wiring socket; 25. Second motor; 26. Rotating shaft; 27. Rewinding shaft; 28. Pulley frame; 29. ​​Pulley body; 30. Pull rope; 31. Placement slot; 32. Third limiting frame; 33. Limiting shaft; 34. Limiting ring; 35. Buffer ring; 36. Positioning slot; 37. Positioning plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-10 The present invention provides a top-mounted TV bracket, which includes a top frame 1, a bracket 2, and a positioning component, as well as a driving component and a lifting component. A limiting plate 18 is fixedly installed at the front end of the top frame 1. A second limiting frame 23 is provided on both sides of the limiting plate 18. The bracket 2 is located at the front end of the top frame 1. A second positioning shaft 22 is fixedly installed at the top end of the bracket 2. Both ends of the second positioning shaft 22 are inserted into the second limiting frame 23 and are rotatably connected to the second limiting frame 23 through bearings. The positioning component includes a positioning frame 3 and a first limiting frame 14. The positioning frame 3 is located on the front side of the bracket 2. Mounting frames are provided on both sides of the positioning frame 3. A first positioning shaft 13 is fixedly installed at the bottom end of the positioning frame 3. Both ends of the first positioning shaft 13 are inserted into the first limiting frame 14 and are rotatably connected to the first limiting frame 14 through bearings. The first limiting frame 14 is fixed at the bottom end of the bracket 2. The lifting assembly includes a second motor 25, a take-up shaft 27, and a pull rope 30. The output end of the second motor 25 is connected to one end of the take-up shaft 27. A limiting component is provided at the rear end of the bracket 2. A placement groove 31 is provided below the top frame 1. The take-up shaft 27 is located at the rear end of the placement groove 31. One end of the pull rope 30 is connected to the take-up shaft 27, and the other end is connected to the limiting component. The limiting component is provided with a buffer structure (the included angle between the bottom end of the pull rope 30 and the rear end of the bracket 2 is 60°-70°). Two positioning plates 37 are symmetrically arranged on both sides of the top of the bracket 2, and a magnetic suction component is provided on the limiting plate 18 to limit the positioning plate 37. The drive assembly drives the positioning frame 3 to rotate around the central axis of the first positioning shaft 13 by a specified angle. A limiting block 15 is provided on the inner side of the top of the positioning frame 3. When the TV is stored, the limiting block 15 will contact the front end of the bracket 2, so that the positioning frame 3 and the bracket 2 remain parallel.

[0022] The limiting assembly includes a limiting shaft 33, a limiting ring 34, and two third limiting frames 32. The limiting ring 34 is penetrated by the limiting shaft 33 and is rotatably connected to the limiting shaft 33 via a bearing. The bottom end of the pull rope 30 is connected to the limiting ring 34. The two third limiting frames 32 are fixed to the rear end of the bracket 2 by screws. The inner side of the third limiting frame 32 is provided with a positioning groove 36. A buffer ring 35 is fixedly installed on the inner wall of the positioning groove 36. Both ends of the limiting shaft 33 are inserted into the interior of the positioning groove 36 and penetrate the buffer ring 35. The outer wall of the limiting shaft 33 is tightly fitted with the inner wall of the buffer ring 35.

[0023] The magnetic suction assembly includes a magnetic suction controller 19 and two magnetic suction bases 20. The two magnetic suction bases 20 are fixed to the inner side of the limiting plate 18, and the magnetic suction controller 19 is fixed to the outer side of the limiting plate 18. An electromagnet 21 is embedded inside the magnetic suction base 20. The magnetic suction controller 19 and the electromagnet 21 are connected by a wire passing through the limiting plate 18. Two positioning plates 37 are welded to both sides of the bracket 2, and the positioning plates 37 are made of iron.

[0024] A method for controlling a top-mounted TV bracket includes the following steps: Step 1: Installation and power-on; The limiting plate 18 and the top frame 1 are an integrated structure. The bracket 2 is provided with a wiring groove 17, and the wiring groove 17 is provided with multiple wiring holes 16. The limiting plate 18 is also provided with wiring holes 16. The front end of the placement groove 31 is fixedly provided with a wiring socket 24.

[0025] The top bracket 1 is fixed to the ceiling with bolts, and the TV is fixed to the positioning bracket 3 and the front end of the mounting bracket with screws. The power cords of the TV, the first motor 4, the electromagnetic brake, the magnetic controller 19, and the second motor 25 are respectively passed through the wiring holes 16 in the wiring groove 17 and connected to the wiring socket 24 at the front end of the placement groove 31 to power on each electrical device. At this time, the bracket 2 is initially parallel to the top bracket 1, the TV is in the storage state, and the first motor 4 is located inside the placement groove 31. Step 2: Switch to usage mode; Multiple pulley frames 28 are fixedly installed inside the placement slot 31. Each pulley frame 28 has a pulley body 29. The multiple pulley bodies 29 are used to support the pull rope 30. The second motor 25 is fixed on one side of the top frame 1. Both ends of the winding shaft 27 are provided with rotating shafts 26 that are inserted into the top frame 1. The rotating shafts 26 are rotatably connected to the top frame 1 through bearings. The output end of the second motor 25 is provided with a motor shaft that passes through the top frame 1 and is connected to the rotating shaft 26.

[0026] The second motor 25 is started by wireless remote control, which drives the winding shaft 27 to rotate and unwinds the pull rope 30 supported by the pulley frame 28. At the same time, the magnetic controller 19 is started, which energizes the electromagnet 21 to generate magnetic force. As the pull rope 30 is unwound, the bracket 2 rotates around the central axis of the second positioning shaft 22 under the action of gravity until the bracket 2 is in a vertical state. At this time, the positioning plates 37 on both sides of the bracket 2 come into contact with the electromagnet 21 and are attracted and fixed by magnetic attraction, thus completing the switching of the use state.

[0027] Step 3: Adjust the tilt angle of the TV; The positioning frame 3 has a vertically arranged slide groove 10 at its rear end, an opening 11 at the bottom of the slide groove 10, and two limiting grooves 9 symmetrically arranged on the inner wall of the slide groove 10. The drive assembly includes a support frame 5, a first motor 4, and a drive block 7. The support frame 5 is fixed to the rear end of the bracket 2 and located at the bottom of the bracket 2. The first motor 4 is installed at the rear end of the support frame 5. An electromagnetic brake is provided inside the support frame 5. A slot 6 is provided at the bottom of the bracket 2. The drive block 7 is inserted into the slot 6 and slidably connected to the slot 6. The cross-section of the drive block 7 is rectangular. A threaded groove is provided inside the drive block 7. A drive shaft that passes through the electromagnetic brake is provided at the output end of the first motor 4. A lead screw 8 that is inserted into the threaded groove is provided at the end of the drive shaft away from the first motor 4. The lead screw 8 is threadedly connected to the drive block 7. The front end of the drive block 7 is inserted into the sliding groove 10 and slidably connected to the sliding groove 10. A drive rod 12 that is inserted into the limiting groove 9 and slidably connected to the limiting groove 9 is provided at the front end of the drive block 7. The drive rod 12 is a cylindrical structure.

[0028] After step 2 is completed, the first motor 4 is started by wireless remote control, which drives the lead screw 8 to rotate, so that the drive block 7 slides with the drive rod 12 in the limit groove 9, thereby driving the positioning frame 3 to rotate around the central axis of the first positioning shaft 13 to the specified angle; after the angle is adjusted, the electromagnetic brake is activated to lock the drive shaft and fix the angle of the positioning frame 3. Step 4: Switch to storage mode; The electromagnet 21 is de-energized via wireless remote control, releasing the magnetic attraction between the positioning plate 37 and the electromagnet 21; the second motor 25 is started, driving the winding shaft 27 to wind up the pull rope 30, and the pull rope 30 pulls the bracket 2 to rotate in the opposite direction around the central axis of the second positioning shaft 22 until the bracket 2 and the top frame 1 are parallel again; during the winding process, the buffer ring 35 buffers the starting pull force at the limit ring 34, completing the switching of the storage state.

[0029] Installation and power-on: The top bracket 1 is fixed to the ceiling with bolts to form an overall support base; the television is fixed to the positioning bracket 3 and the front end of the mounting brackets on both sides of the positioning bracket 3 with screws to achieve stable support for the television. The bracket 2 is initially parallel to the top bracket 1, at which point the television is in the storage state, and the first motor 4 is located inside the placement slot 31 below the top bracket 1.

[0030] To power all components, the power cords for the television, the first motor 4, the electromagnetic brake, the magnetic controller 19, and the second motor 25 are passed through the wiring holes 16 in the wiring groove 17 on the bracket 2 and connected to the wiring socket 24 at the front end of the placement groove 31 (similar to the connection between a plug and a socket). The wiring socket 24 is then connected to the indoor circuit. At the same time, the wiring holes 16 on the limiting plate 18 (which is an integrated structure with the top frame 1) can also assist in wiring to ensure that all electrical equipment is powered on and ready.

[0031] Switch to usage mode: The second motor 25 (fixed to one side of the top frame 1) is started by a wireless remote control. The output end of the second motor 25 drives the take-up shaft 27 to rotate through the motor shaft (the rotating shafts 26 at both ends of the take-up shaft 27 are inserted into the top frame 1 and connected by bearings to ensure rotational stability). When the take-up shaft 27 rotates, the pull rope 30 is smoothly unwound under the support of the pulley bodies 29 on the multiple pulley frames 28 inside the placement groove 31, reducing frictional loss.

[0032] Simultaneously, the magnetic controller 19 (fixed to the outside of the limiting plate 18) is activated. The magnetic controller 19 energizes the electromagnet 21 inside the magnetic base 20 (fixed to the inside of the limiting plate 18) through the wire passing through the limiting plate 18, generating magnetic force. As the pull rope 30 is unwound, the bracket 2 rotates around the second positioning shaft 22 at the top under the action of gravity (the two ends of the second positioning shaft 22 are inserted into the second limiting frames 23 on both sides of the limiting plate 18 and connected by bearings to ensure smooth rotation) until the bracket 2 is in a vertical state. At this time, the iron positioning plates 37 welded on both sides of the bracket 2 come into contact with the electromagnet 21 and are firmly attracted by magnetic attraction, realizing the stable positioning of the bracket 2 after it is unfolded.

[0033] Adjust the TV tilt angle: After the bracket 2 is in a vertical position, if it is necessary to adjust the tilt angle of the TV, the first motor 4 (installed on the support frame 5 at the bottom of the rear end of the bracket 2) is started by wireless remote control. The output end of the first motor 4 drives the drive shaft through the electromagnetic brake (built into the support frame 5) to rotate, and the lead screw 8 at the end of the drive shaft rotates accordingly.

[0034] The lead screw 8 is connected to the drive block 7 (with a rectangular cross-section to ensure stable sliding) in the empty groove 6 at the bottom of the insertion bracket 2 by a thread. The rotation of the lead screw 8 drives the drive block 7 to slide in the empty groove 6. The cylindrical drive rod 12 at the front end of the drive block 7 is inserted into the limiting groove 9 of the vertical slide groove 10 at the rear end of the positioning frame 3. As the drive block 7 slides, it moves synchronously along the limiting groove 9 and the slide groove 10, thereby driving the positioning frame 3 to rotate around the first positioning shaft 13 at the bottom end (the two ends of the first positioning shaft 13 are inserted into the first limiting frame 14 at the bottom end of the bracket 2 and connected by bearings to ensure rotation accuracy).

[0035] When the positioning frame 3 drives the TV to rotate to the specified angle, the electromagnetic brake is activated to lock the drive shaft, and the position of the drive block 7 is fixed by mechanical braking, thereby locking the angle of the positioning frame 3 and ensuring a stable viewing angle.

[0036] Switch to storage mode: The electromagnet 21 is de-energized by wireless remote control, releasing the magnetic attraction between the positioning plate 37 and the electromagnet 21; the second motor 25 is restarted, driving the winding shaft 27 to rotate in the opposite direction to wind up the pull rope 30. The pull rope 30 pulls the limiting component at the rear end of the bracket 2 (the limiting ring 34 is sleeved on the limiting shaft 33 and is rotatably connected by a bearing, and the bottom end of the pull rope 30 is connected to the limiting ring 34), causing the bracket 2 to rotate in the opposite direction around the second positioning shaft 22.

[0037] During the winding process, the two ends of the limiting shaft 33 are inserted into the positioning grooves 36 inside the two third limiting frames 32 at the rear end of the bracket 2, and the outer wall of the limiting shaft 33 is tightly fitted with the buffer ring 35 of the inner wall of the positioning groove 36. The buffer ring 35 can buffer the starting pull force at the limiting ring 34 to prevent the pull rope 30 from breaking due to excessive instantaneous force. Until the bracket 2 and the top bracket 1 return to parallel, the TV returns to the storage state, completing the entire storage process.

[0038] The integrated design of the top frame 1 and the limiting plate 18 enhances the overall rigidity; the top of the bracket 2 is rotatably connected to the second limiting frame 23 on both sides of the limiting plate 18 through the second positioning shaft 22, and the bottom is rotatably connected to the first limiting frame 14 through the first positioning shaft 13. The double rotation fulcrum ensures that the bracket 2 and the positioning frame 3 rotate smoothly. The magnetic suction assembly further secures the extended bracket 2 by attracting the electromagnet 21 to the iron positioning plate 37, preventing it from shaking; the electromagnetic brake can lock the drive shaft immediately to ensure that the positioning frame 3 does not shift after the angle is adjusted.

[0039] Wireless remote control operation eliminates the need to touch the bracket 2, making it especially suitable for controlling equipment at heights; when stored, the bracket 2 is parallel to the top shelf 1, saving space and not affecting the aesthetics of the room, meeting the needs of small apartments.

[0040] Top frame 1 selection: cold-rolled steel plate (high strength, deformation resistant).

[0041] Bracket 2 selection: 6061-T6 aluminum alloy profile (lightweight, high strength), surface anodized treatment.

[0042] Positioning bracket 3 option: cold-rolled steel plate or aluminum alloy (for supporting the TV, rigidity is required).

[0043] Limiting plate 18 selection: integrated cold-rolled steel plate with top frame 1 (same material to ensure structural strength).

[0044] Mounting bracket selection: Aluminum alloy corner bracket (to help fix the TV, lightweight).

[0045] Positioning plate 37 (magnetic positioning parts on both sides of bracket 2) selection: Q235 iron plate (good magnetic conductivity, compatible with electromagnet 21).

[0046] Second motor 25 selection: DC servo motor (with gearbox, high control precision).

[0047] 27 Rewind Shaft Selection: Stainless Steel 304 (corrosion resistant, suitable for outdoor or humid environments).

[0048] Pull rope 30 (lifting / lowering bracket 2) selection: plastic coated steel wire rope (high strength, wear resistant).

[0049] Pulley bracket 28: Stainless steel 304, height 30-50mm, width 20mm; Pulley body 29: Nylon 66 (self-lubricating), diameter 20-30mm, thickness 10mm, groove width matches the diameter of pull rope 30 (3-5mm).

[0050] Limit shaft 33 selection: 45 steel.

[0051] Selection of limiting ring 34: Stainless steel 304, inner diameter matches that of limiting shaft 33.

[0052] Buffer ring 35 selection: Nitrile rubber (resistant to aging, good elasticity).

[0053] Magnetic controller 19 (controls the on / off state of electromagnet 21) selection: relay control module (with wireless receiving function); Parameters: Input voltage DC12V, output current ≤5A, supports wireless remote control (Bluetooth or RF433MHz).

[0054] Magnetic base 20 (fixed electromagnet 21) selection: ABS plastic (insulating, lightweight).

[0055] Electromagnet 21 (Adsorption Positioning Plate 37) Selection: DC chuck type electromagnet 21; Parameters: Voltage DC12V, suction force 5-10kg (ensure bracket 2 is vertical and does not wobble), size φ30×20mm (compatible with magnetic base 20).

[0056] First motor option 4: DC servo motor (with gearbox).

[0057] Parameters: Power 30-50W, Voltage DC24V, Speed ​​300-500rpm (output speed 30-50rpm after deceleration).

[0058] Electromagnetic brake (locking drive shaft) selection: power failure brake (braking when power is off to ensure angle is fixed); Parameters: Voltage DC24V, braking torque 1-3N・m (to prevent positioning frame 3 from rotating on its own), compatible drive shaft diameter 8-10mm.

[0059] Selection of wiring socket 24 (central power supply interface): Industrial socket (with waterproof cover); Parameters: Input AC220V, output interfaces include DC12V and DC24V specifications, a total of 6-8, compatible with various motors and controllers), rated current 10A.

[0060] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A top-mounted TV bracket, comprising a top frame (1), a bracket (2), and a positioning assembly, characterized in that: It also includes drive components and lifting components; A limiting plate (18) is fixedly installed at the front end of the top frame (1). A second limiting frame (23) is provided on both sides of the limiting plate (18). The bracket (2) is located at the front end of the top frame (1). A second positioning shaft (22) is fixedly installed at the top end of the bracket (2). The two ends of the second positioning shaft (22) are inserted into the second limiting frame (23) and are rotatably connected to the second limiting frame (23) through bearings. The positioning component includes a positioning frame (3) and a first limiting frame (14). The positioning frame (3) is located on the front side of the bracket (2). Mounting frames are provided on both sides of the positioning frame (3). A first positioning shaft (13) is fixedly installed at the bottom of the positioning frame (3). Both ends of the first positioning shaft (13) are inserted into the first limiting frame (14) and are rotatably connected to the first limiting frame (14) through bearings. The first limiting frame (14) is fixed at the bottom of the bracket (2). The lifting assembly includes a second motor (25), a take-up shaft (27), and a pull rope (30). The output end of the second motor (25) is connected to one end of the take-up shaft (27). The rear end of the bracket (2) is provided with a limiting assembly. The bottom of the top frame (1) is provided with a placement groove (31). The take-up shaft (27) is located at the rear end of the placement groove (31). One end of the pull rope (30) is connected to the take-up shaft (27), and the other end is connected to the limiting assembly. The limiting assembly is provided with a buffer structure. Two positioning plates (37) are symmetrically arranged on both sides of the top of the bracket (2), and a magnetic suction component is provided on the limiting plate (18) to limit the positioning plate (37); The drive assembly drives the positioning frame (3) to rotate around the central axis of the first positioning shaft (13) by a specified angle, and a limit block (15) is provided on the inner side of the top of the positioning frame (3).

2. A top-mounted TV bracket according to claim 1, characterized in that: The limiting plate (18) and the top frame (1) are an integrated structure. The bracket (2) is provided with a wiring groove (17) and a plurality of wiring holes (16) are provided in the wiring groove (17). The limiting plate (18) is also provided with wiring holes (16). The front end of the placement groove (31) is fixedly provided with a wiring socket (24).

3. A top-mounted TV bracket according to claim 2, characterized in that: Multiple pulley frames (28) are fixedly installed inside the placement slot (31). The pulley frames (28) are equipped with pulley bodies (29). The multiple pulley bodies (29) are used to support the pull rope (30). The second motor (25) is fixed on one side of the top frame (1). The two ends of the winding shaft (27) are provided with rotating shafts (26) that are inserted into the top frame (1). The rotating shafts (26) are rotatably connected to the top frame (1) through bearings. The output end of the second motor (25) is provided with a motor shaft that passes through the top frame (1) and is connected to the rotating shaft (26).

4. A top-mounted TV bracket according to claim 3, characterized in that: The limiting assembly includes a limiting shaft (33), a limiting ring (34), and two third limiting frames (32). The limiting ring (34) is penetrated by the limiting shaft (33) and is rotatably connected to the limiting shaft (33) through a bearing. The bottom end of the pull rope (30) is connected to the limiting ring (34). The two third limiting frames (32) are fixed to the rear end of the bracket (2) by screws. The inner side of the third limiting frame (32) is provided with a positioning groove (36). A buffer ring (35) is fixedly installed on the inner wall of the positioning groove (36). The two ends of the limiting shaft (33) are inserted into the interior of the positioning groove (36) and penetrate the buffer ring (35). The outer wall of the limiting shaft (33) is tightly fitted with the inner wall of the buffer ring (35).

5. A top-mounted TV bracket according to claim 4, characterized in that: The magnetic suction assembly includes a magnetic suction controller (19) and two magnetic suction seats (20). The two magnetic suction seats (20) are fixed on the inner side of the limiting plate (18), and the magnetic suction controller (19) is fixed on the outer side of the limiting plate (18). An electromagnet (21) is embedded inside the magnetic suction seat (20). The magnetic suction controller (19) and the electromagnet (21) are connected by a wire passing through the limiting plate (18). Two positioning plates (37) are welded to both sides of the bracket (2), and the positioning plates (37) are made of iron.

6. A top-mounted TV bracket according to claim 5, characterized in that: The positioning frame (3) has a vertically arranged slide groove (10) at its rear end. The bottom of the slide groove (10) has an opening (11), and two limiting grooves (9) are symmetrically arranged on the inner wall of the slide groove (10). The drive assembly includes a support frame (5), a first motor (4), and a drive block (7). The support frame (5) is fixed to the rear end of the bracket (2) and located at the bottom of the bracket (2). The first motor (4) is installed at the rear end of the support frame (5). An electromagnetic brake is provided inside the support frame (5). A slot (6) is provided at the bottom of the bracket (2). The drive block (7) is inserted into the slot (6) and slidably connected to the slot (6). The cross-section of the drive block (7) is rectangular. A threaded groove is provided inside the drive block (7). The output end of the first motor (4) is provided with a drive shaft that passes through the electromagnetic brake. The end of the drive shaft away from the first motor (4) is provided with a lead screw (8) inserted into the threaded groove. The lead screw (8) is threadedly connected to the drive block (7). The front end of the drive block (7) is inserted into the slide groove (10) and slidably connected to the slide groove (10). The front end of the drive block (7) is provided with a drive rod (12) inserted into the limiting groove (9) and slidably connected to the limiting groove (9). The drive rod (12) is a cylindrical structure.

7. A control method for a top-mounted TV bracket for implementing the top-mounted TV bracket according to any one of claims 1-6, characterized in that: The following steps are included: Step 1: Installation and power-on; The top bracket (1) is fixed to the ceiling with bolts, and the TV is fixed to the positioning bracket (3) and the front end of the mounting bracket with screws. The power cord of the TV, the power cord of the first motor (4), the power cord of the electromagnetic brake, the power cord of the magnetic controller (19) and the power cord of the second motor (25) are respectively passed through the wiring hole (16) in the wiring groove (17) and connected to the wiring socket (24) at the front end of the placement groove (31) to power on each electrical device. At this time, the bracket (2) is initially parallel to the top bracket (1), the TV is in the storage state, and the first motor (4) is located inside the placement groove (31). Step 2: Switch to usage mode; The second motor (25) is started by wireless remote control, which drives the winding shaft (27) to rotate and supports the pull rope (30) to unwind. At the same time, the magnetic controller (19) is started, which energizes the electromagnet (21) to generate magnetic force. As the pull rope (30) is unwinded, the bracket (2) rotates around the central axis of the second positioning shaft (22) under the action of gravity until the bracket (2) is in a vertical state. At this time, the positioning plates (37) on both sides of the bracket (2) come into contact with the electromagnet (21) and are attracted and fixed by magnetic attraction, thus completing the switching of the use state.

8. The control method for a top-mounted TV bracket according to claim 7, characterized in that, It also includes the following steps: Step 3: Adjust the tilt angle of the TV; After step 2 is completed, the first motor (4) is started by wireless remote control, the lead screw (8) is driven to rotate, the drive block (7) slides with the drive rod (12) in the limit groove (9), and then the positioning frame (3) rotates around the central axis of the first positioning shaft (13) to the specified angle; after the angle is adjusted, the electromagnetic brake is started to lock the drive shaft and fix the angle of the positioning frame (3); Step 4: Switch to storage mode; The electromagnet (21) is de-energized by wireless remote control, releasing the magnetic attraction between the positioning plate (37) and the electromagnet (21); the second motor (25) is started, driving the winding shaft (27) to wind up the pull rope (30), and the pull rope (30) pulls the bracket (2) to rotate in the opposite direction around the central axis of the second positioning shaft (22) until the bracket (2) and the top frame (1) are parallel again; during the winding process, the buffer ring (35) buffers the starting pull force at the limit ring (34) to complete the switching of the storage state.

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