Display screen signal modulator

Abstract

The utility model discloses a display screen signal modulator, which belongs to the technical field of signal modulators, and comprises a modulator main body, a one-way mechanism is connected between a one-way ratchet wheel and the modulator main body, the one-way mechanism is used for driving a rotating shaft to rotate in one direction, and the front end of the one-way ratchet wheel is connected with a reset mechanism; an opposite mechanism is connected between the two rotating shafts and used for driving the two rotating shafts to rotate outwards at the same time. The one-way self-locking function when the supporting legs are unfolded is achieved through the one-way mechanisms, and the deployment stability of equipment is ensured; automatic folding and energy storage of the supporting legs are achieved through cooperation of a reset mechanism and a third torsional spring, the compact size is kept in the non-use state, and the structural fatigue risk caused by long-term unfolding is reduced; the deployment efficiency in a complex environment is improved by utilizing the synchronous transmission characteristic of a transmission belt wheel and a gear set through an opposite mechanism; the heat dissipation holes and the interfaces are far away from the bearing surface through the bottom suspension design.

Description

Technical Field

[0001] This utility model relates to the field of signal modulator technology, and in particular to a display screen signal modulator. Background Technology

[0002] A display signal modulator is an electronic device that modulates low-frequency signals such as audio and video onto a high-frequency carrier wave to adapt to the transmission requirements of the display screen, thereby optimizing signal quality and extending transmission distance.

[0003] In the field of display signal processing equipment, traditional signal modulators generally suffer from insufficient environmental adaptability and structural functional defects. On the one hand, existing equipment mostly adopts an open flat base design. When placed directly on the ground or desktop, the bottom of the equipment is in complete contact with the supporting surface, which makes it easy for dust, liquid splashes and other impurities to enter the internal circuit through heat dissipation holes or interface gaps. At the same time, the condensation of water vapor in humid environments will accelerate the oxidation and corrosion of metal parts, causing unstable signal transmission or even hardware damage, significantly shortening the service life of the equipment. On the other hand, their support structure mostly adopts fixed brackets or non-adjustable bases, which cannot adjust the height and tilt of the equipment according to the usage scenario to optimize the operating field of vision, and is also difficult to adapt to complex installation environments (such as equipment stacking, narrow spaces, etc.). This structural rigidity limits the applicability of the equipment in multiple scenarios. Especially in temporary workstations or mobile application scenarios that require flexible deployment, the contradiction between the lack of environmental protection and the rigid adjustment mechanism of traditional designs becomes increasingly prominent, becoming a key technical bottleneck restricting the reliability and application scope of the equipment.

[0004] Therefore, there is an urgent need to provide a display screen signal modulator to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a display screen signal modulator.

[0006] To solve the above-mentioned technical problems, the present invention provides a display screen signal modulator, including a modulator body, two rotating shafts rotatably connected to the bottom of the modulator body, multiple support legs fixedly connected to the outside of the two rotating shafts, and a one-way ratchet fixedly connected to the outside of the two rotating shafts.

[0007] A one-way mechanism is connected between the one-way ratchet and the modulator body. The one-way mechanism is used to drive the rotating shaft to rotate in one direction. A reset mechanism for resetting the rotating shaft is connected to the front end of the one-way ratchet.

[0008] A counter-rotating mechanism is connected between the two rotating shafts, which is used to drive the two rotating shafts to rotate outwards simultaneously.

[0009] The present invention is further configured such that: a display screen is installed at the front end of the modulator body, a plurality of operation buttons are installed at the front end of the modulator body, a plurality of first brackets are fixedly connected to the bottom of the modulator body, and the two rotating shafts are respectively rotatably connected to the plurality of first brackets.

[0010] With the above technical solution, when it is necessary to adjust the height of the modulator body, the operator can directly move the support leg and change the unfolding angle of the support leg by rotating the rotating shaft on the first bracket, thereby adjusting the relative height of the modulator body and the ground. This allows the modulator body to maintain a stable support state and adjust the optimal viewing angle according to operating habits or ambient light, thus improving the human-computer interaction experience.

[0011] The present invention is further configured such that: the one-way mechanism includes two second brackets fixedly connected to the bottom of the modulator body, each of the two second brackets having a shaft two rotatably connected inside, each of the two shaft two having a pawl fixedly connected to the outside of the shaft two, which respectively meshes with the two one-way ratchet wheels, and each of the two shaft two having a torsion spring two sleeved on the outside of the shaft two, with the two ends of the torsion spring two being fixedly connected to one side of the pawl and the second bracket respectively.

[0012] Through the above technical solution, the function of the one-way mechanism is to ensure that the support leg can only rotate in one direction when it rotates outward. The pawl outside the shaft two is engaged with the one-way ratchet under the action of the torsion spring two. When the support leg needs to be unfolded, the support leg unfolds outward, causing the rotating shaft and the one-way ratchet to rotate. At this time, the pawl slides along the tooth surface of the one-way ratchet, allowing the rotating shaft to rotate in one direction. When the support leg needs to be fixed, the pawl engages with the tooth groove of the one-way ratchet to form a self-locking mechanism, preventing the support leg from retracting due to external force. This design ensures that the support leg can reliably maintain the unfolded state after being adjusted to the correct position, avoiding the modulator body from tipping over or shifting due to loose support structure.

[0013] The present invention is further configured such that: both of the two shafts are fixedly connected to the outside of a lever plate, the lever plate being used to drive the pawl to disengage from the one-way ratchet.

[0014] With the above technical solution, when the support legs need to be quickly retracted, by moving the lever outside the shaft two and pressing down the levers on both sides, the pawl can overcome the elastic force of the torsion spring two and disengage from the one-way ratchet. At this time, the rotating shaft loses the locking of the one-way mechanism, and the support legs can rotate freely and retract under the action of the torsion spring three. This design allows the modulator body to quickly release the locking state of the support legs through simple operation when it needs to be moved or stored, improving the flexibility of the modulator body.

[0015] The present invention is further configured such that: the reset mechanism includes two torsion springs three respectively sleeved on the outside of the two rotating shafts; two connecting blocks are fixedly connected to the bottom of the modulator body; the two rotating shafts are rotatably connected to the two connecting blocks respectively; and the two ends of the torsion springs three are fixedly connected to the front end of the one-way ratchet and the connecting blocks respectively.

[0016] Through the above technical solution, the function of the reset mechanism is to allow the support leg to automatically reset. When the support leg is extended outward, the torsion spring three is compressed and stores energy. When the support leg needs to be retracted, after the locking of the one-way mechanism is released, the torsion spring three releases its elastic potential energy, which drives the rotating shaft to rotate in the opposite direction through the one-way ratchet, so that the support leg automatically resets to the initial retracted state. This design allows the modulator body to maintain a compact volume when not in use, while avoiding structural fatigue caused by the support leg being extended for a long time.

[0017] The present invention is further configured such that: the opposing mechanism includes a transmission pulley fixedly connected to the rear end of one of the rotating shafts; a third bracket is fixedly connected to the bottom of the modulator body; a fourth shaft is rotatably connected inside the third bracket; a transmission pulley is also fixedly connected to the outside of the fourth shaft; a transmission belt is connected between the two transmission pulleys; a gear is fixedly connected to the outside of the fourth shaft; a gear is also fixedly connected to the outside of the other rotating shaft; and the two gears mesh with each other.

[0018] Through the above technical solution, the function of the opposing mechanism is to allow the support legs on both sides to unfold synchronously. When one support leg is unfolded, the rotational motion of the rotating shaft on that side is transmitted to shaft four through the transmission pulley and transmission belt one. Through the meshing of two gears, the motion is transmitted synchronously to the other rotating shaft. The two rotating shafts can be rotated in opposite directions through transmission, ensuring that the support legs on both sides can unfold or retract synchronously at the same angle. This design allows the modulator body to maintain a stable center of gravity when adjusting the support angle, avoiding tilting of the modulator body due to the adjustment of one side of the support leg, and improving the deployment efficiency of the modulator body in complex environments.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model achieves a one-way self-locking function when the support legs are deployed through a one-way mechanism, ensuring the stability of equipment deployment; it achieves automatic retraction and energy storage of the support legs through a reset mechanism in conjunction with a torsion spring, maintaining a compact size when not in use and reducing the risk of structural fatigue from long-term deployment; it avoids center of gravity shift caused by unilateral adjustment through a counter-rotating mechanism utilizing the synchronous transmission characteristics of the transmission pulley and gear set, improving deployment efficiency in complex environments; and it keeps the heat dissipation holes and interfaces away from the bearing surface through a bottom suspended design, while blocking the path of dust and liquid intrusion.

[0021] 2. This utility model significantly enhances the operational flexibility of the equipment in mobile scenarios by disengaging the pawl through the linkage of the lever plate and the one-way ratchet. Through the coordinated action of multiple mechanisms, it not only solves the technical problem of traditional equipment being susceptible to environmental impurities through the support structure, but also overcomes the limitations of fixed support in terms of scene adaptability through the multi-degree-of-freedom adjustment mechanism, forming a comprehensive technical advantage of moisture and dust prevention, rapid deployment, stable support, and human-machine collaboration. Attached Figure Description

[0022] Figure 1 This is a first-view structural diagram of the present invention;

[0023] Figure 2 This is a second-view sectional view of the present invention;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is a third-view sectional view of the present invention;

[0026] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0027] Figure 6 for Figure 4 A magnified view of a section at point C;

[0028] Figure 7 This is a fourth-angle sectional view of the present invention;

[0029] Figure 8 for Figure 7 A magnified view of a section at point D.

[0030] In the diagram: 1. Modulator body; 2. Rotating shaft; 3. Support leg; 4. One-way ratchet; 5. One-way mechanism; 501. Second bracket; 502. Shaft two; 503. Pawl; 504. Torsion spring two; 505. Paddle plate; 6. Reset mechanism; 601. Torsion spring three; 602. Connecting block; 7. Opposing mechanism; 701. Transmission pulley; 702. Third bracket; 703. Shaft four; 704. Transmission belt one; 705. Gear; 8. Display screen; 9. Operation button; 10. First bracket. Detailed Implementation

[0031] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0032] Please see Figures 1-8This embodiment of a display screen signal modulator includes a modulator body 1. Two rotating shafts 2 are rotatably connected to the bottom of the modulator body 1. Multiple support legs 3 are fixedly connected to the outside of each of the two rotating shafts 2. One-way ratchet wheels 4 are fixedly connected to the outside of each of the two rotating shafts 2. A one-way mechanism 5 connects the one-way ratchet wheels 4 to the modulator body 1. The one-way mechanism 5 drives the rotating shafts 2 to rotate in one direction. The one-way mechanism 5 includes two second brackets 501 fixedly connected to the bottom of the modulator body 1. A second shaft 502 is rotatably connected inside each of the two second brackets 501. Pawls 503, respectively meshing with the two one-way ratchet wheels 4, are fixedly connected to the outside of each of the two second shafts 502. A second torsion spring 504 is sleeved on the outside of each of the two second shafts 502. Both ends are fixedly connected to one side of the pawl 503 and the second bracket 501, respectively. The function of the one-way mechanism 5 is to ensure that the support leg 3 can only rotate in one direction when it rotates outward. The pawl 503 outside the shaft 2 502 is engaged with the one-way ratchet 4 under the action of the torsion spring 2 504. When the support leg 3 needs to be unfolded, the support leg 3 unfolds outward, causing the rotating shaft 2 and the one-way ratchet 4 to rotate. At this time, the pawl 503 slides along the tooth surface of the one-way ratchet 4, allowing the rotating shaft 2 to rotate in one direction. When the support leg 3 needs to be fixed, the pawl 503 engages with the tooth groove of the one-way ratchet 4 to form a self-locking mechanism, preventing the support leg 3 from retracting due to external force. This design ensures that the support leg 3 can reliably maintain the unfolded state after being adjusted to the correct position, avoiding the modulator body 1 from tipping over or shifting due to the loosening of the support structure.

[0033] like Figures 1-6 As shown, the front end of the one-way ratchet 4 is connected to a reset mechanism 6 for resetting the rotating shaft 2. The reset mechanism 6 includes two torsion springs 601 respectively sleeved on the outside of the two rotating shafts 2. Two connecting blocks 602 are fixedly connected to the bottom of the modulator body 1. The two rotating shafts 2 are rotatably connected to the two connecting blocks 602 respectively. The two ends of the torsion springs 601 are fixedly connected to the front end of the one-way ratchet 4 and the connecting blocks 602 respectively. The function of the reset mechanism 6 is to allow the support leg 3 to automatically reset. When the support leg 3 is extended outward, the torsion springs 601 are compressed and stored. When the support leg 3 needs to be retracted, after the one-way mechanism 5 is released, the torsion springs 601 release elastic potential energy, which drives the rotating shaft 2 to rotate in the opposite direction through the one-way ratchet 4, so that the support leg 3 automatically resets to the initial retracted state. This design allows the modulator body 1 to maintain a compact volume when not in use, while avoiding structural fatigue of the support leg 3 due to long-term extension.

[0034] like Figures 5-7As shown, a counter-rotating mechanism 7 connects the two rotating shafts 2. The counter-rotating mechanism 7 drives the two rotating shafts 2 to rotate outward simultaneously. The counter-rotating mechanism 7 includes a transmission pulley 701 fixedly connected to the rear end of one of the rotating shafts 2. A third bracket 702 is fixedly connected to the bottom of the modulator body 1. A shaft 703 is rotatably connected inside the third bracket 702. A transmission pulley 701 is also fixedly connected to the outside of the shaft 703. A transmission belt 704 connects the two transmission pulleys 701. A gear 705 is fixedly connected to the outside of the shaft 703. A gear 705 is also fixedly connected to the outside of the other rotating shaft 2. The two gears 705 are connected in a counter-rotating manner. The intermeshing, opposing mechanism 7 allows the support legs 3 on both sides to unfold synchronously. When one support leg 3 unfolds, the rotational motion of the rotating shaft 2 on that side is transmitted to shaft 4 703 via the transmission pulley 701 and the transmission belt 704. Through the meshing of two gears 705, the motion is transmitted synchronously to the other rotating shaft 2. The two rotating shafts 2 can rotate in opposite directions through transmission, ensuring that the support legs 3 on both sides can unfold or retract synchronously at the same angle. This design allows the modulator body 1 to maintain a stable center of gravity when adjusting the support angle, avoiding tilting of the modulator body 1 due to the adjustment of one side of the support leg 3, and improving the deployment efficiency of the modulator body 1 in complex environments.

[0035] like Figures 1-2 As shown, a display screen 8 is installed at the front end of the modulator body 1, and multiple operation buttons 9 are installed at the front end of the modulator body 1. Multiple first supports 10 are fixedly connected to the bottom of the modulator body 1. Two rotating shafts 2 are rotatably connected to the multiple first supports 10 respectively. When it is necessary to adjust the position and height of the modulator body 1, the operator can directly move the support leg 3. By rotating the rotating shaft 2 on the first support 10, the unfolding angle of the support leg 3 is changed, thereby adjusting the relative height of the modulator body 1 and the ground. This allows the modulator body 1 to maintain a stable support state and adjust the optimal viewing angle according to operating habits or ambient light, thereby improving the human-computer interaction experience.

[0036] like Figures 6-8 As shown, both shafts 2 502 are fixedly connected to the outside of a lever 505. The lever 505 is used to drive the pawl 503 to disengage from the one-way ratchet 4. When the support leg 3 needs to be quickly retracted, by moving the lever 505 on the outside of shaft 2 502 and pressing down on the levers 505 on both sides, the pawl 503 can overcome the elastic force of the torsion spring 2 504 and disengage from the one-way ratchet 4. At this time, the rotating shaft 2 loses the lock of the one-way mechanism 5, and the support leg 3 can be freely rotated and retracted under the action of the torsion spring 3 601. This design allows the modulator body 1 to quickly release the locking state of the support leg 3 through simple operation when it needs to be moved or stored, improving the flexibility of the modulator body 1.

[0037] In use, the operator moves the support leg 3 outward, causing the rotating shaft 2 to rotate. The one-way ratchet 4 rotates synchronously with the rotating shaft 2. At this time, the pawl 503 on the second shaft 502 slides along the tooth surface of the one-way ratchet 4 under the action of the second torsion spring 504, allowing the support leg 3 to extend unidirectionally to a set angle and form a self-locking mechanism. The rotating shafts 2 on both sides are synchronously extended through a transmission system consisting of a transmission pulley 701 and a gear 705, ensuring the stability of the modulator body 1's center of gravity. When it is necessary to adjust the height or tilt angle, the support height of the modulator body 1 is changed by changing the extension angle of the support leg 3. Its bottom suspended design keeps the heat dissipation holes and interfaces away from the bearing surface, and together with the tilted display screen 8 and operation buttons 9 at the front, it forms an ergonomic viewing angle. Simultaneously, it prevents dust and liquid from entering through the contact surface; in humid environments or when relocation is required, pressing down on the lever 505 causes the pawl 503 to disengage from the one-way ratchet 4, and the torsion spring 601 releases its elastic potential energy to drive the rotating shaft 2 to rotate in the opposite direction, causing the support leg 3 to automatically retract to its initial state. At this time, the bottom surface of the modulator body 1 forms a minimum contact gap with the bearing surface, which reduces the risk of water vapor condensation and facilitates storage and carrying; the retractable support structure and self-locking reset mechanism achieve synergistic optimization of environmental adaptability and operational flexibility; the one-way braking and elastic reset mechanism achieve reliable maintenance and rapid switching of the support state, and the synchronous deployment system ensures the stability of multi-scenario deployment, effectively solving the technical contradiction of insufficient environmental protection and rigid adjustment of the traditional modulator body 1.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A display screen signal modulator, comprising a modulator body (1), characterized in that: The bottom of the modulator body (1) is rotatably connected to two rotating shafts (2), and multiple support legs (3) are fixedly connected to the outside of the two rotating shafts (2). A one-way ratchet (4) is fixedly connected to the outside of the two rotating shafts (2). A one-way mechanism (5) is connected between the one-way ratchet (4) and the modulator body (1), and the one-way mechanism (5) is used to drive the rotating shaft (2) to rotate in one direction. The front end of the one-way ratchet (4) is connected to a reset mechanism (6) for resetting the rotating shaft (2). A counter-rotating mechanism (7) is connected between the two rotating shafts (2), and the counter-rotating mechanism (7) is used to drive the two rotating shafts (2) to rotate outward simultaneously.

2. The display screen signal modulator according to claim 1, characterized in that: The front end of the modulator body (1) is equipped with a display screen (8), and the front end of the modulator body (1) is equipped with multiple operation buttons (9). The bottom of the modulator body (1) is fixedly connected with multiple first brackets (10), and the two rotating shafts (2) are rotatably connected to the multiple first brackets (10) respectively.

3. A display screen signal modulator according to claim 1, characterized in that: The one-way mechanism (5) includes two second brackets (501) fixedly connected to the bottom of the modulator body (1). A shaft (502) is rotatably connected inside each of the two second brackets (501). A pawl (503) that meshes with two one-way ratchet wheels (4) is fixedly connected to the outside of each of the two shafts (502). A torsion spring (504) is sleeved on the outside of each of the two shafts (502). The two ends of the torsion spring (504) are fixedly connected to one side of the pawl (503) and the second bracket (501) respectively.

4. A display screen signal modulator according to claim 3, characterized in that: Both of the two shafts (502) are fixedly connected to the outside of a lever (505), which is used to drive the pawl (503) to disengage from the one-way ratchet (4).

5. A display screen signal modulator according to claim 1, characterized in that: The reset mechanism (6) includes two torsion springs (601) respectively sleeved on the outside of the two rotating shafts (2). The bottom of the modulator body (1) is fixedly connected to two connecting blocks (602). The two rotating shafts (2) are rotatably connected to the two connecting blocks (602) respectively. The two ends of the torsion springs (601) are fixedly connected to the front end of the one-way ratchet (4) and the connecting block (602) respectively.

6. A display screen signal modulator according to claim 1, characterized in that: The opposing mechanism (7) includes a transmission pulley (701) fixedly connected to the rear end of one of the rotating shafts (2). A third bracket (702) is fixedly connected to the bottom of the modulator body (1). A shaft four (703) is rotatably connected inside the third bracket (702). A transmission pulley (701) is also fixedly connected to the outside of the shaft four (703). A transmission belt one (704) is connected between the two transmission pulleys (701). A gear (705) is fixedly connected to the outside of the shaft four (703). A gear (705) is also fixedly connected to the outside of the other rotating shaft (2). The two gears (705) mesh with each other.

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