A display screen protection support device

Abstract

The utility model discloses a display screen protection support device, specifically relates to protection support field, including display screen body and two symmetry fixedly connected on the mounting plate of display screen body, is fixedly connected with the pivot on the mounting plate, is rotatably connected with the side arm on the pivot, is fixedly connected with angle adjusting assembly on the side arm, and the output of angle adjusting assembly and the one end of pivot are connected, and angle adjusting assembly is used for driving pivot rotation, and the other end fixedly connected with locking sleeve of pivot, is fixedly connected with locking assembly on the side arm, and the output of locking assembly is connected with two symmetrical clamps and a positioning pin, and two clamps and positioning pin rotatably connected, the utility model discloses through the locking structure of integrated locking assembly, L type clamp and compression spring, has improved the reliability of locking, has effectively prevented the accidental loosening or turning down of display screen because of the pressure loss, has greatly enhanced the inherent safety and fault protection ability of equipment in the key application scene.

Description

Technical Field

[0001] This utility model relates to the field of protective bracket technology, and more specifically, to a display screen protective bracket device. Background Technology

[0002] Display screen protective brackets are support devices specifically designed to fix and protect monitors. Their core function is to improve the safety and convenience of monitor use through physical protection and flexible adjustment. In harsh environments such as industrial and medical settings, these brackets are usually made of zinc-aluminum alloy or carbon steel and equipped with shockproof and anti-static coatings. They can withstand harsh conditions such as high temperatures and dust, ensuring stable operation of the equipment. For everyday office scenarios, protective brackets help users adjust the screen to eye level through multi-axis adjustment, effectively relieving neck pressure.

[0003] Traditional display brackets generally lack sufficient locking reliability. The friction locking or simple pin mechanism typically used will inevitably wear down the locking components after long-term use. The connection gaps in the mechanism will also gradually increase due to vibration. At the same time, the elastic element used to provide locking force may experience a decrease in preload due to material fatigue. Ultimately, this will directly lead to a continuous decrease in the effective locking force of the entire locking mechanism, causing the display to experience slight angular displacement and loosening even after it is fixed. In extreme cases, it may even suddenly tip over, causing equipment damage.

[0004] In summary, to improve the locking reliability of display screen brackets, it is necessary to address the problem that traditional display screen brackets use friction locking or simple pin mechanisms, which lead to a continuous decrease in the effective locking force of the mechanism and unstable equipment fixation. The goal is to ensure that the bracket can firmly fix the display screen and has a long service life. Utility Model Content

[0005] The present invention provides a protective bracket device for a display screen, which aims to solve the problem that the friction locking or simple pin mechanism used in traditional display screen brackets causes the effective locking force of the mechanism to continuously decrease, resulting in unstable equipment fixation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a display screen protective bracket device, comprising a display screen body and two mounting plates symmetrically and fixedly connected to the display screen body. A rotating shaft is fixedly connected to the mounting plate, and a side arm is rotatably connected to the rotating shaft. An angle adjustment component is fixedly connected to the side arm. The output end of the angle adjustment component is connected to one end of the rotating shaft, and the angle adjustment component is used to drive the rotating shaft to rotate. A locking sleeve is fixedly connected to the other end of the rotating shaft. A locking component is fixedly connected to the side arm. The output end of the locking component is connected to two symmetrical clamping plates and a positioning pin. The two clamping plates and the positioning pin are rotatably connected, and the clamping plates and the positioning pin are movably connected inside the locking sleeve. A compression spring is fixedly connected between the two clamping plates.

[0007] In a preferred embodiment, the angle adjustment assembly includes a first electric push rod fixedly connected inside the side arm, a slide plate fixedly connected to the output end of the first electric push rod, a rack fixedly connected to the slide plate, and a gear meshing with the rack. The slide plate is slidably connected inside the side arm, and the gear and the rotating shaft are fixedly connected. The first electric push rod is used to drive the slide plate to move along the side arm.

[0008] In a preferred embodiment, the locking assembly includes a second electric push rod fixedly connected to the side arm, a connecting rod fixedly connected at one end to the second electric push rod, and a push rod fixedly connected at one end to the other end of the connecting rod. The other end of the push rod is rotatably connected to the clamping plate, the push rod is fixedly connected to the positioning pin, and the push rod is movably connected to the locking sleeve. The second electric push rod is used to drive the connecting rod to move in a preset direction.

[0009] In a preferred embodiment, a limiting protrusion is provided inside the side arm, and the limiting protrusion is slidably connected to the slide plate.

[0010] In a preferred embodiment, a pressure sensor is fixedly connected inside the locking sleeve. The pressure sensor is used to detect the clamping force of the clamping plate on the locking sleeve and transmits the electrical signal to the external PLC control system to control the operation of the second electric push rod.

[0011] In a preferred embodiment, a cross arm is fixedly connected between the two side arms, and a base is provided below the cross arm. A lifting assembly is installed on the base, and the output end of the lifting assembly is connected to the cross arm. The lifting assembly is used to drive the cross arm to move in the vertical direction.

[0012] In a preferred embodiment, the lifting assembly includes a stepper motor fixedly connected to the base, a threaded rod fixedly connected to the output end of the stepper motor, and two guide rods symmetrically arranged on both sides of the threaded rod. The threaded rod is threadedly connected to the cross arm, the guide rod is slidably connected to the cross arm, and the guide rod is fixedly connected to the base.

[0013] The beneficial effects of this utility model are as follows: This invention improves locking reliability through a locking structure integrating a locking component, an L-shaped clamp, and a compression spring. Utilizing the lever principle of the L-shaped clamp, it efficiently amplifies the force into a huge radial clamping force acting on the inner wall of the locking sleeve, thereby producing a frictional locking effect far exceeding that of traditional designs. Furthermore, the ingenious arrangement of the compression spring in the mechanism provides the system with extremely high safety redundancy. In its natural state, the spring always drives the clamp to move in the locking direction. Even in extreme conditions such as unexpected power outages or drive component failures, the mechanism can automatically enter and maintain the locked state, effectively preventing the display screen from accidentally loosening or flipping down due to pressure loss. This greatly enhances the inherent safety and fault protection capabilities of the equipment in critical application scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the lifting component structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the angle adjustment component of this utility model.

[0017] Figure 4 This is a schematic diagram of the locking sleeve structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the clamping plate structure of this utility model.

[0019] The attached figures are labeled as follows: 1. Display screen body; 2. Mounting plate; 3. Rotating shaft; 401. First electric push rod; 402. Slide plate; 403. Rack; 404. Gear; 5. Side arm; 501. Limiting protrusion; 6. Locking sleeve; 7. Pressure sensor; 801. Second electric push rod; 802. Connecting rod; 803. Push rod; 9. Clamping plate; 10. Positioning pin; 11. Compression spring; 12. Cross arm; 13. Base; 1401. Stepper motor; 1402. Threaded rod; 1403. Guide rod. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Refer to the instruction manual appendix Figures 1 to 5 A display screen protective bracket device includes a display screen body 1 and two mounting plates 2 symmetrically fixedly connected to the display screen body 1. A rotating shaft 3 is fixedly connected to the mounting plate 2, and a side arm 5 is rotatably connected to the rotating shaft 3. An angle adjustment component is fixedly connected to the side arm 5. The output end of the angle adjustment component is connected to one end of the rotating shaft 3. The angle adjustment component is used to drive the rotating shaft 3 to rotate. A locking sleeve 6 is fixedly connected to the other end of the rotating shaft 3. A locking component is fixedly connected to the side arm 5. The output end of the locking component is connected to two symmetrical clamping plates 9 and a positioning pin 10. The two clamping plates 9 and the positioning pin 10 are rotatably connected. The clamping plates 9 and the positioning pin 10 are movably connected inside the locking sleeve 6. A compression spring 11 is fixedly connected between the two clamping plates 9.

[0022] It should be noted that there are two side arms 5 and two structures installed on the side arms 5, which are respectively installed on two mounting plates 2, so that the display screen body 1 is subjected to force evenly, effectively preventing structural deformation, shaking or abnormal noise caused by force on one side, and greatly improving the overall stability and reliability. Furthermore, a rotating shaft 3 is installed between the side arm 5 and the mounting plate 2. The rotation of the rotating shaft 3 is controlled by the angle adjustment component to control the pitch angle of the display screen body 1, and the locking component locks the locking sleeve 6.

[0023] It is worth noting that the two clamping plates 9 are symmetrical L-shaped levers. The lever arm located on the short side of the L-shape is the working surface, and its inner side has friction material for contacting the inner wall of the locking sleeve 6. The resistance arm located on the long side of the L-shape is the force-bearing end, which is connected to the output end of the locking assembly. The positioning pin 10 serves as the common rotation fulcrum for the two clamping plates 9, allowing them to rotate freely around it. In the locked state (without external force), the elastic force of the compression spring 11 will attempt to expand, pushing the ends of the long arms of the two L-shaped clamping plates to both sides. According to the lever principle, the push-opening of the ends of the long arms will drive the two clamping plates 9 to rotate around the positioning pin 10, causing their short arm working surfaces to tightly clamp the locking sleeve 6, generating a huge frictional force. The display angle is firmly locked. In the unlocked state, the locking assembly pushes outward, resisting the elastic force of the compression spring 11, and squeezing the ends of the long arms of the two clamping plates 9 towards the middle, driving the two clamping plates 9 to rotate in the opposite direction around the positioning pin 10, causing their short arm working surfaces to open and disengage from the locking sleeve 6.

[0024] Refer to the instruction manual appendix Figure 3 The angle adjustment assembly includes a first electric push rod 401 fixedly connected inside the side arm 5, a slide plate 402 fixedly connected to the output end of the first electric push rod 401, a rack 403 fixedly connected to the slide plate 402, and a gear 404 meshing with the rack 403. The slide plate 402 is slidably connected inside the side arm 5, and the gear 404 is fixedly connected to the rotating shaft 3. The first electric push rod 401 is used to drive the slide plate 402 to move along the side arm 5.

[0025] It should be noted that the first electric push rod 401 is installed inside the side arm 5, and drives the rotating shaft 3 to rotate through the slide plate 402, rack 403 and gear 404. The rack 403 and gear 404 are matched in size to achieve stable power transmission.

[0026] Refer to the instruction manual appendix Figure 3 and Figure 4The locking assembly includes a second electric push rod 801 fixedly connected to the side arm 5, a connecting rod 802 fixedly connected at one end to the second electric push rod 801, and a push rod 803 fixedly connected at one end to the other end of the connecting rod 802. The other end of the push rod 803 is rotatably connected to the clamping plate 9. The push rod 803 is fixedly connected to the positioning pin 10. The push rod 803 is movably connected to the locking sleeve 6. The second electric push rod 801 is used to drive the connecting rod 802 to move in a preset direction.

[0027] It should be noted that the second electric push rod 801 is mounted on the side arm 5 and drives the clamping plate 9 to rotate through the connecting rod 802 and the push rod 803. A conical channel is provided inside the locking sleeve 6, and a matching conical surface is provided on the push rod 803, so that the push rod 803 slides along this conical channel and will not disengage from the locking sleeve 6.

[0028] Refer to the instruction manual appendix Figure 4 The side arm 5 is provided with a limiting protrusion 501, which is slidably connected to the slide plate 402.

[0029] It should be noted that the limiting protrusion 501 is located above the slide plate 402 and has a smooth surface, which limits the movement of the slide plate 402, thereby limiting the movement of the rack 403.

[0030] Refer to the instruction manual appendix Figure 4 A pressure sensor 7 is fixedly connected inside the locking sleeve 6. The pressure sensor 7 is used to detect the clamping force of the clamping plate 9 on the locking sleeve 6 and transmits the electrical signal to the external PLC control system to control the operation of the second electric push rod 801.

[0031] It should be noted that the pressure sensor 7 is arranged on the contact and pressing path between the clamping plate 9 and the locking sleeve 6. It detects the positive pressure applied by the clamping plate 9 to the locking sleeve 6 in real time when the clamping plate 9 is locked. It converts the detected analog pressure signal into an electrical signal and immediately transmits it to the external PLC control system, thereby controlling the operation of the second electric push rod 801, forming a complete closed-loop control circuit. The model of the pressure sensor 7 in this device is CYYZ11.

[0032] Refer to the instruction manual appendix Figure 2 A horizontal arm 12 is fixedly connected between the two side arms 5. A base 13 is provided below the horizontal arm 12. A lifting assembly is installed on the base 13. The output end of the lifting assembly is connected to the horizontal arm 12. The lifting assembly is used to drive the horizontal arm 12 to move in the vertical direction.

[0033] It should be noted that the lifting assembly is installed between the base 13 and the horizontal arm 12 to control the height of the horizontal arm 12, thereby controlling the height of the display screen body 1.

[0034] Refer to the instruction manual appendix Figure 2The lifting assembly includes a stepper motor 1401 fixedly connected to the base 13, a threaded rod 1402 fixedly connected to the output end of the stepper motor 1401, and two guide rods 1403 symmetrically arranged on both sides of the threaded rod 1402. The threaded rod 1402 is threadedly connected to the cross arm 12, the guide rod 1403 is slidably connected to the cross arm 12, and the guide rod 1403 is fixedly connected to the base 13.

[0035] It should be noted that a threaded hole is provided on the cross arm 12, and two smooth through holes are provided on both sides of the threaded hole. The threaded hole corresponds to the threaded rod 1402 and is adapted in size to realize the linear movement of the cross arm 12. The two through holes correspond to the two guide rods 1403 and are adapted in size to limit the movement of the cross arm 12, making the movement of the cross arm 12 more stable.

[0036] Working principle: The stepper motor 1401 drives the threaded rod 1402 to rotate, causing the horizontal arm 12 to move linearly along the guide rod 1403. This drives the two side arms 5 to move vertically, achieving height adjustment of the display screen body 1. Then, the first electric push rod 401 extends, driving the sliding plate 402 to slide stably along the limiting protrusion 501 inside the side arm 5. This causes the rack 403 to move accordingly, and drives the gear 404 meshing with the rack 403 to rotate. The gear 404 drives the rotating shaft 3 to rotate, and the rotating shaft 3 drives the display screen body 1 to rotate through the mounting plate 2, thereby precisely controlling the tilt angle of the display screen. At this time, the second electric push rod 801 on the side arm 5 retracts, pulling the push rod 803 along the conical channel inside the locking sleeve 6 via the connecting rod 802. The movement of the push rod 803 forces the two clamping plates 9 connected to it to rotate... The ends of the long arms overcome the elastic force of the compression spring 11 and move closer together. According to the lever principle, with the positioning pin 10 as the fulcrum, the working surface of the short arm of the clamping plate 9 opens, releasing the lock on the locking sleeve 6, allowing for angle adjustment. When the adjustment is complete and locking is required, the second electric push rod 801 pushes in the opposite direction, releasing the elastic force of the compression spring 11, pushing the ends of the long arms of the two clamping plates 9 to open, causing the working surfaces of their short arms to tightly clamp the inner wall of the locking sleeve 6, generating a huge frictional force. At the same time, the pressure sensor 7 fixed inside the locking sleeve 6 detects the clamping force in real time and feeds back the electrical signal to the external PLC control system. The PLC controls the extension and retraction stroke of the second electric push rod 801 to form a precise closed-loop control, ensuring that the locking force is always stable within the preset safety range, thereby reliably fixing the angle of the rotating shaft 3 and the display screen body 1.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A display screen protective bracket device, characterized in that: The device includes a display screen body (1) and two mounting plates (2) symmetrically fixedly connected to the display screen body (1). A rotating shaft (3) is fixedly connected to the mounting plate (2). A side arm (5) is rotatably connected to the rotating shaft (3). An angle adjustment component is fixedly connected to the side arm (5). The output end of the angle adjustment component is connected to one end of the rotating shaft (3). The angle adjustment component is used to drive the rotating shaft (3) to rotate. A locking sleeve (6) is fixedly connected to the other end of the rotating shaft (3). A locking component is fixedly connected to the side arm (5). The output end of the locking component is connected to two symmetrical clamps (9) and a positioning pin (10). The two clamps (9) and the positioning pin (10) are rotatably connected. The clamps (9) and the positioning pin (10) are movably connected inside the locking sleeve (6). A compression spring (11) is fixedly connected between the two clamps (9).

2. The display screen protective bracket device according to claim 1, characterized in that: The angle adjustment assembly includes a first electric push rod (401) fixedly connected inside the side arm (5), a slide plate (402) fixedly connected to the output end of the first electric push rod (401), a rack (403) fixedly connected to the slide plate (402), and a gear (404) meshing with the rack (403). The slide plate (402) is slidably connected inside the side arm (5), and the gear (404) is fixedly connected to the shaft (3). The first electric push rod (401) is used to drive the slide plate (402) to move along the side arm (5).

3. The display screen protective bracket device according to claim 1, characterized in that: The locking assembly includes a second electric push rod (801) fixedly connected to the side arm (5), a connecting rod (802) fixedly connected to the second electric push rod (801) at one end, and a push rod (803) fixedly connected to the other end of the connecting rod (802) at one end. The other end of the push rod (803) is rotatably connected to the clamping plate (9). The push rod (803) is fixedly connected to the positioning pin (10). The push rod (803) is movably connected to the locking sleeve (6). The second electric push rod (801) is used to drive the connecting rod (802) to move in a preset direction.

4. A display screen protective bracket device according to claim 2, characterized in that: The side arm (5) is provided with a limiting protrusion (501), and the limiting protrusion (501) and the slide plate (402) are slidably connected.

5. A display screen protective bracket device according to claim 3, characterized in that: A pressure sensor (7) is fixedly connected inside the locking sleeve (6). The pressure sensor (7) is used to detect the clamping force of the clamping plate (9) on the locking sleeve (6) and transmit the electrical signal to the external PLC control system to control the operation of the second electric push rod (801).

6. A display screen protective bracket device according to claim 1, characterized in that: A cross arm (12) is fixedly connected between the two side arms (5). A base (13) is provided below the cross arm (12). A lifting assembly is installed on the base (13). The output end of the lifting assembly is connected to the cross arm (12). The lifting assembly is used to drive the cross arm (12) to move in the vertical direction.

7. A display screen protective bracket device according to claim 6, characterized in that: The lifting assembly includes a stepper motor (1401) fixedly connected to the base (13), a threaded rod (1402) fixedly connected to the output end of the stepper motor (1401), and two guide rods (1403) symmetrically arranged on both sides of the threaded rod (1402). The threaded rod (1402) and the cross arm (12) are threadedly connected, the guide rod (1403) and the cross arm (12) are slidably connected, and the guide rod (1403) is fixedly connected to the base (13).

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