Positioning device for improving the use effect of a digital screen

Abstract

The application relates to the field of display accessories, in particular to a positioning device for improving the use effect of a digital screen, which comprises a supporting base and a pressure-sensitive pen, the supporting base is provided with two clamping grooves, the supporting base is internally provided with a heat dissipation cavity and a clamping cavity, a plurality of ventilation holes are arranged in the heat dissipation cavity of the supporting base, the supporting base is provided with an air outlet, a pen insertion barrel for placing the pressure-sensitive pen is arranged on the side wall of the supporting base, the pen insertion barrel is internally provided with an opening and closing ventilation hole for enhancing the dustproof and heat dissipation of the pressure-sensitive pen, a clamping assembly is arranged in the clamping cavity of the supporting base, the clamping assembly can realize the regulation and control of the heat dissipation areas of digital screens with different sizes by changing the internal position and adjusting the resistance, a heat dissipation assembly is arranged in the supporting base, and the heat dissipation assembly is connected with a cleaning assembly for facilitating clamping and protecting the digital screen.

Description

Technical Field

[0001] This invention relates to the field of digital display applications, specifically a positioning device for improving the usability of digital displays. Background Technology

[0002] With the development of technology, paperless painting is gradually becoming a mainstream trend. Paperless painting not only reduces the use of paper and protects the environment, but also allows for simple and quick modification and refinement of artwork. The most commonly used device for paperless painting is the pen display, which combines a display screen and a graphics tablet. Compared to the misalignment caused by the separation of drawing and display on a graphics tablet, drawing and display on a pen display are synchronized, providing a WYSIWYG experience. At the same time, pen displays use electromagnetic touch screens with high precision and fast response, and can achieve original handwriting input, making them very suitable for painting and calligraphy. However, electromagnetic touch screens cannot be used for hand input; a matching electromagnetic pressure-sensitive pen must be used. Currently, pen displays are widely used in various industries such as illustration design, game scene design, industrial design, and home decoration design.

[0003] When using a pen display, it's difficult to keep it stable on a table for drawing, as it can easily move due to the user's arm. Additionally, the pen display, combined with the tablet and monitor, generates heat as it operates continuously, requiring cooling to maintain efficient operation. Furthermore, fingerprints and contaminants accumulate on the surface, reducing accuracy and sensitivity. Most pen displays on the market lack a separate holder for the pressure-sensitive pen; the cylindrical pen tends to roll on smooth surfaces, potentially falling and affecting its performance or even rendering it unusable. Furthermore, storing the pen separately can lead to situations where the pen is misplaced.

[0004] To prevent the pen display from shifting due to user movement and collisions, existing technologies use external pen display stands to fix it in place. However, these stands often only clamp the pen display horizontally and do not fully restrict its freedom of movement. This fails to address the issue of pen accuracy changing with increased pen pressure, resulting in poor pen display performance.

[0005] To address this problem, the present invention designs a positioning device that improves the usability of digital display screens. Summary of the Invention

[0006] The present invention provides a positioning device for improving the use effect of a pen display. By restricting the pen display's degree of freedom through longitudinal movement, the use effect of the pen display is improved.

[0007] This invention provides a positioning device for improving the usability of a digital display, comprising a support base and a pressure-sensitive pen, as well as a clamping assembly, a heat dissipation assembly, and a cleaning assembly. The support base is an L-shaped hollow structure with horizontal and vertical sections separated. The horizontal base plate of the L-shaped support base has two clamping grooves for auxiliary clamping and heat dissipation. The support base contains a heat dissipation cavity and a clamping cavity. The heat dissipation cavity has multiple ventilation holes communicating with the outside air. An air outlet is provided on the horizontal surface of the support base, communicating with the heat dissipation cavity. The vertical section of the L-shaped support base has a pen holder for holding the pressure-sensitive pen. The pen holder contains the pressure-sensitive pen, which enhances dust prevention and heat dissipation. The pressure-sensitive pen is connected to the heat dissipation assembly through heat dissipation holes on the inner sidewall of the vertical section of the L-shaped support base. Controlling the opening and closing of the ventilation holes assists in heat dissipation and sealing. A clamping assembly is installed within the heat dissipation cavity. A heat dissipation component for heat dissipation and cleaning is included. This component utilizes Bernoulli's principle to change the gas velocity as the position of the pressure-sensitive pen changes. A cleaning component for cleaning the pen display is connected to the cleaning component, which is installed on the outer surface of the horizontal section of the support base. A clamping component is connected to the cleaning component, and this clamping component is installed within the clamping cavity of the support base. The clamping component adjusts the resistance by changing its internal position to regulate the heat dissipation area of ​​the pen display of different sizes. A clamping component controlling the heat dissipation area and rate is also installed within the clamping cavity of the support base. This clamping component is connected to the horizontal section of the support base and the heat dissipation cavity via a clamping groove. The clamping component clamps the pen display placed on the horizontal section of the support base to prevent it from falling. The clamping component controls the heat dissipation effect of the heat dissipation component within the heat dissipation cavity via the clamping groove. Finally, the clamping component controls the cleaning component's cleaning of the pen display.

[0008] Preferably, the clamping assembly includes a clamping motor, a clamping screw, a clamping baffle, clamping balls, a clamping slide bar, and a clamping block. The clamping motor is fixedly installed at the bottom inside the L-shaped vertical section of the support base. The clamping motor shaft passes through a motor hole opened inside the vertical section of the support base and is fitted with the clamping screw. The clamping screw is installed at the bottom inside the L-shaped horizontal section of the support base. The clamping screw is configured as a reverse screw. Two clamping slide bars are horizontally fixedly installed in the clamping cavity of the support base on both sides of the clamping screw at equal height and distance. The clamping baffle has sliding rod holes on both sides and a lead screw hole in the middle. The clamping baffle is connected and installed with the clamping sliding rod and the clamping lead screw through the sliding rod holes and the lead screw hole. The movement of the clamping baffle controls the heat dissipation efficiency and heat dissipation area of ​​the heat dissipation component. Clamping balls are slidably installed on the clamping lead screw to form a ball screw structure. The clamping balls are fixedly installed in the lead screw hole on the clamping baffle and move together with the clamping baffle. An irregularly shaped column structure clamping device that adjusts the resistance by changing its own position is fixedly installed on the upper surface of the clamping baffle. The clamping block, which controls the cleaning range, is connected to the cleaning component on the surface of the support base. The clamping block changes the cleaning range of the cleaning component by converting linear motion into rotation. The clamping block, which controls the heat dissipation area and rate and is connected to the heat dissipation component, has an irregularly shaped column structure with an L-shaped horizontal end. A vertical column is connected to the vertical L-shaped structure of the clamping block. This irregularly shaped column structure enhances the degree of freedom of the clamping component on the digital screen, and strengthens the clamping force and stability. A small push block, connected to the cleaning push rod, is located near the horizontal L-shaped structure of the clamping block. This small push block controls the cleaning roller to clean the surface of the digital screen, enhancing the cleaning area of ​​the cleaning component and strengthening its clamping function. A conductive protrusion, controlling the airflow, is connected to the vertical column of the clamping block at the heat dissipation cavity. This conductive protrusion controls the opening and closing of the heat dissipation component and its heat dissipation effect, enhancing the energy efficiency of the heat dissipation component and achieving precise heat dissipation.

[0009] Preferably, the heat dissipation assembly includes heat dissipation blades, a permanent magnet, an electromagnet, a sliding rheostat, a heat dissipation push block, and a heat dissipation baffle. The heat dissipation cavity inside the L-shaped horizontal end of the support base is located above and separated from the clamping cavity. The heat dissipation cavity is close to the horizontal section of the support base, giving the heat dissipation assembly a good heat dissipation effect. A groove is opened on the heat dissipation cavity partition plate, flush with the clamping groove. The heat dissipation cavity is connected to the cleaning assembly through an air outlet. The clamping block is connected to the clamping groove through a groove on the heat dissipation cavity partition plate. The clamping groove and ventilation holes connect the heat dissipation cavity to the outside air. A permanent magnet is fixedly installed on the upper surface of the partition plate inside the heat dissipation cavity. An electromagnet is fixedly installed on the opposite side of the permanent magnet. A sliding rheostat driven by the clamping block is connected to one end of the electromagnet. The electromagnet works by relying on the sliding rheostat connected to the circuit. The sliding rheostat controls the current to control the strength of the electromagnet's magnetism, thereby controlling the wind force. The top of the heat dissipation blades, which are used to assist in dust removal and cleaning, is installed between the permanent magnet and the electromagnet. The heat dissipation blades are made of magnetic material and are controlled by the electromagnet to swing forward. To achieve wind-powered cooling for the digital display, the cooling blades are connected to a cleaning component for self-cleaning of dust. The cooling cavity has multiple continuous inverted trapezoidal ventilation holes with a top base angle of 60°. Dust-proof and cleaning-aiding baffles are installed at each inverted trapezoidal ventilation hole. The opening and closing of the inverted trapezoidal ventilation holes changes the wind speed, enhancing the dust removal and cleaning effect on the cooling blades. The baffles controlling the cleaning and dust removal of the ventilation holes have a trapezoidal sawtooth structure, and the trapezoids are isosceles trapezoids. The baffles can tightly seal the ventilation holes. The system is designed to prevent dust accumulation, accelerate heat dissipation, improve heat dissipation efficiency, and clean and remove dust upon opening. A heat dissipation pusher, which protects the pressure-sensitive pen, is fixedly connected to the vertical section of the heat dissipation baffle near the support base. This pusher is connected to the pen holder and slidably installed within a heat dissipation hole in the support base. The portion of the heat dissipation pusher inserted into the pen holder, which locks the pressure-sensitive pen and controls the opening and closing of the ventilation hole, has a side-frustum shaped structure. The gradual movement of the heat dissipation pusher changes the area blocked by the ventilator, increasing the area connecting the ventilator and the heat dissipation cavity. This increases the diameter of the ventilation hole, enhances the heat dissipation efficiency of the heat dissipation components, and utilizes the wind speed difference to achieve dust removal. The side-frustum shaped structure of the heat dissipation pusher allows the pressure-sensitive pen to be locked after insertion and enhances the dust-proof effect of the support base. Near the heat dissipation pusher, the outer part of the pen holder is cylindrical and fixedly fitted with a spring. The spring automatically resets the heat dissipation pusher and seals the ventilation hole to prevent dust accumulation.

[0010] Preferably, the cleaning assembly includes a cleaning roller, a cleaning nozzle, a cleaning push rod, a rotating bevel gear, a cleaning bevel gear, and a cleaning guide. The clamping block is connected to a cleaning push rod whose rotation direction is changed by the clamping block. The cleaning push rod, which controls the rotation of the cleaning roller and locks the small push block to enhance the positioning effect on the digital screen, has a rotating groove that enhances the positioning effect. The rotating groove locks the small push block on the clamping block to prevent lateral displacement of the digital screen during use. The rotating groove enhances the positioning effect of the clamping assembly on the digital screen and also enhances the cleaning effect of the cleaning assembly on the digital screen. The small push block of the clamping block slides in the rotating groove. The depth of the rotating groove ensures that the small push block on the clamping block will not fall off while enhancing the cleaning effect on the digital screen. A rotating bevel gear is coaxially mounted on the cleaning push rod. The gears, specifically the rotating bevel gear and the cleaning bevel gear, are meshed and installed with a transmission ratio of 4:1. When the cleaning push rod completes one cycle, the cleaning bevel gear rotates 90° to clean the digital screen once. When the clamping block moves to the bottom of the cleaning push rod, the cleaning roller cleans the digital screen once. The cleaning guide is fixedly installed in the air outlet of the support base. The cleaning bevel gear is fixedly installed at one end of the cleaning roller. The cleaning roller is shaped like an "L" hinge. During the swinging process, the cleaning roller transforms into an "I" shape. The cleaning roller has cleaning holes and an air inlet. A cleaning nozzle is installed on the cleaning hole of the cleaning roller. The cleaning roller is hollow inside. The air inlet of the cleaning roller is connected to the heat dissipation cavity through the cleaning guide, enabling air jet dust removal during cleaning.

[0011] The beneficial effects of this invention are as follows:

[0012] 1. A positioning device for improving the performance of a pen display screen according to the present invention restricts the degree of freedom of the pen display screen when the clamping component moves laterally, thereby fixing the pen display screen and reducing shaking, enhancing the pen stroke accuracy when using the pen display screen, and improving the performance of the pen display screen.

[0013] 2. The positioning device of the present invention improves the performance of a pen display screen by moving the clamping component laterally during operation to make the cleaning component swing, thereby cleaning the surface of the pen display screen, removing fingerprints and contaminants from the surface of the pen display screen, and ensuring the accuracy and performance of the pen display screen.

[0014] 3. The positioning device of the present invention improves the performance of a pen display by using a clamping component to control the heat dissipation component in conjunction with the placement and removal of the pressure-sensitive pen to clean and seal the heat dissipation cavity. At the same time, it provides different heat dissipation for different specifications of pen displays, saving energy and improving heat dissipation efficiency to ensure the efficient operation of the pen display. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is an overall isometric view of the invention in its initial state;

[0017] Figure 2 This is a top view of the initial state of the present invention;

[0018] Figure 3 This is the right view of the initial state of the present invention;

[0019] Figure 4 This is a cross-sectional view AA of the present invention;

[0020] Figure 5 This is an enlarged view of section view A of the present invention;

[0021] Figure 6 This is a cross-sectional view BB of the present invention;

[0022] Figure 7 This is a cross-sectional view of the present invention (CC).

[0023] Figure 8 This is a cross-sectional view DD of the present invention.

[0024] In the diagram: 1. Support base; 11. Clamping groove; 12. Ventilation hole; 13. Pen holder; 2. Pressure-sensitive pen; 3. Clamping assembly; 31. Clamping motor; 32. Clamping screw; 33. Clamping baffle; 34. Clamping ball; 35. Clamping slide bar; 36. Clamping block; 361. Conductive protrusion; 4. Heat dissipation assembly; 41. Heat dissipation blades; 411. Rotating shaft; 42. Permanent magnet; 43. Electromagnet; 44. Sliding rheostat; 45. Heat dissipation push block; 46. Heat dissipation baffle; 5. Cleaning assembly; 51. Cleaning roller; 52. Cleaning nozzle; 53. Cleaning push rod; 54. Rotating bevel gear; 55. Cleaning bevel gear; 56. Cleaning conduit. Detailed Implementation

[0025] To better understand the above solution, the technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] As shown in the figure, this invention provides a positioning device for improving the performance of a digital display screen. The device includes a support base 1 and a pressure-sensitive pen 2, as well as a clamping assembly 3, a heat dissipation assembly 4, and a cleaning assembly 5. The support base 1 has an L-shaped hollow structure with horizontal and vertical sections separated. The horizontal base plate of the L-shaped support base 1 has two clamping grooves 11 for auxiliary clamping and heat dissipation. The clamping grooves 11 are located on both sides of the support base 1, with a spacing equal to the width of the digital display screen. The hollow interior of the support base 1 contains a heat dissipation cavity and a clamping cavity, with the heat dissipation cavity located above the clamping cavity. Furthermore, a partition plate separates the space, and the partition plate has a groove equal to the clamping groove 11 to connect the clamping cavity to the support base 1. A heat dissipation component 4 connected to the clamping component 3 is installed in the heat dissipation cavity to dissipate heat and promote cleaning. A clamping component 3 controlling the heat dissipation area and heat dissipation rate is installed in the clamping cavity of the support base 1. Multiple ventilation holes 12 are opened in the heat dissipation cavity of the support base 1 to communicate with the outside air. An air outlet is opened on the horizontal surface of the support base 1 to communicate with the heat dissipation cavity. A cylindrical pen holder 13 for placing a pressure-sensitive pen 2 is opened at the same height as the heat dissipation cavity in the L-shaped vertical section of the support base 1. The cylindrical pen holder 13 can hold... The pressure-sensitive pen 2 is equipped with enhanced dustproof and heat dissipation effects. The pen 2 is connected to the heat dissipation component 4 via heat dissipation holes on the inner side wall of the L-shaped vertical section of the support base 1. These holes connect the cylindrical pen insert 13 to the heat dissipation cavity. Inserting and removing the pen 2 controls the opening and closing of the ventilation holes 12, assisting the heat dissipation component 4 in heat dissipation and sealing. The heat dissipation component 4 communicates with the outside air through the ventilation holes 12 for gas circulation and heat dissipation. The ventilation holes 12 accelerate air circulation and enhance the heat dissipation effect. The heat dissipation component 4 utilizes Bernoulli's principle to change the gas velocity as the position of the pen 2 changes. The pen 2 is removed from the pen insert 13. As the diameter of the vent 12 gradually increases, the gas flow rate accelerates, causing dust to be blown out. The heat dissipation component 4 is connected to the cleaning component 5 for cleaning the digital screen. The cleaning component 5 is connected and installed to the outer surface of the horizontal section of the support base 1. The cleaning component 5 is connected and installed to the clamping component 3. The clamping component 3 is connected to the horizontal section of the support base 1 and the heat dissipation cavity through the clamping groove 11. The clamping component 3 clamps the digital screen placed on the horizontal section of the support base 1 through the clamping groove 11 to prevent it from falling. The clamping component 3 controls the heat dissipation effect of the heat dissipation component 4 in the heat dissipation cavity through the clamping groove 11. The clamping component 3 controls the cleaning component 5 to clean the digital screen.

[0027] During the use of a pen display, adjusting one's body while drawing often causes the pen display to move, leading to drawing errors. Simultaneously, the pen display is prone to shaking, resulting in reduced pressure sensitivity and changes in pen stroke accuracy. Furthermore, pen displays handle both input and display, and processes like drawing and calligraphy often require considerable time. Prolonged operation with a power source causes the pen display to overheat, affecting its accuracy and performance. Additionally, fingerprints, oil, and other contaminants accumulate on the display surface during use, further reducing pen stroke accuracy. Therefore, cleaning the pen display surface before and after use is necessary. This invention provides a positioning device to improve the performance of a pen display. This device achieves surface cleaning by switching the working state of the clamping component 3, while simultaneously controlling the heat dissipation area and effect through the clamping distance of the clamping component 3, ensuring continuous high-performance operation of the pen display.

[0028] Clamping assembly 3 includes a clamping motor 31, a clamping screw 32, a clamping baffle 33, clamping balls 34, clamping slide bars 35, and a clamping block 36. The clamping motor 31 is fixedly installed in the middle of the bottom end of the L-shaped vertical section of the support base 1. The motor shaft of the clamping motor 31 passes through a motor hole opened inside the vertical section of the support base 1 and is fitted with the clamping screw 32. The clamping screw 32 is installed in the bottom end of the L-shaped horizontal section of the support base 1 and rotates coaxially with the clamping motor 31. The clamping screw 32 is a reverse screw and is located in the middle of the horizontal direction. Two clamping slide bars 35 are fixedly installed horizontally at equal height and distance on both sides of the horizontal section of the clamping screw 32 inside the clamping cavity of the support base 1. The surface of the clamping slide bars 35 is smooth and the length is equal to that of the L-shaped horizontal section of the support base 1. The clamping baffle 33 is a cuboid structure. It has sliding rod holes on both sides and a lead screw hole in the center. The clamping baffle 33 is connected to the clamping slide rod 35 and the clamping lead screw 32 via the sliding rod holes and the lead screw hole. The movement of the clamping baffle 33 controls the heat dissipation efficiency and heat dissipation area of ​​the heat dissipation assembly 4. Clamping balls 34 are mounted on the clamping lead screw 32, forming a ball screw structure. The clamping balls 34 are fixedly installed in the lead screw hole on the clamping baffle 33 and move together with the clamping baffle 33. The clamping baffle 33 slides in the clamping slide rod 35 under the action of the clamping balls 34. A clamping block 36, which adjusts the resistance by changing its position, is fixedly installed on the upper surface of the clamping baffle 33 in the area corresponding to the clamping groove 11. As the clamping block 36 moves, it engages with the sliding... The change in resistance of the rheostat 44 causes a change in the current in the circuit, which in turn causes a change in the magnetism of the electromagnet 43, resulting in a change in airflow to control the heat dissipation efficiency. The clamping block 36, which is connected to the heat dissipation component 4 and controls the heat dissipation area and rate, has an irregular cylindrical structure. Changing the internal position of the clamping block 36 adjusts the resistance value to regulate the heat dissipation area of ​​different sized digital screens. The movement of the clamping block 36 causes the conductive protrusion to connect to the sliding rheostat, and the resistance value controls the heat dissipation area of ​​the digital screen heat dissipation component. The irregular cylindrical structure enhances the horizontal freedom of the clamping block 36 over the digital screen, preventing the digital screen from shifting laterally and vertically, which would lead to poor performance. Furthermore, the horizontal end of the clamping block 36 is L-shaped, and the clamping block 36 has a vertical column in the vertical direction. The bottom end of the vertical column is fixedly installed to the clamping baffle 33 via the clamping groove 11. A small push block connected to the cleaning push rod 53 is provided at the end of the L-shaped horizontal section of the clamping block 36 near the cleaning push rod 53. The clamping block 36 converts linear motion into rotation, changing the swing range of the cleaning roller 51, thereby controlling the cleaning area. The linear motion distance of the clamping block 36 determines the rotation angle of the cleaning push rod 53, which in turn determines the rotation angle of the cleaning roller 51, thus controlling the cleaning area. The small push block is embedded in the rotating groove of the cleaning push rod 53. The small push block rotates within the rotating groove as the clamping block 36 clamps and moves, controlling the rotation of the cleaning push rod 53. The cleaning push rod 53 controls the rotation of the cleaning roller 51 on the surface of the digital screen for cleaning. The small push block enhances the cleaning area of ​​the digital screen by the cleaning roller 51.Simultaneously, the cleaning component 5 enhances the auxiliary positioning function of the digital screen. The vertical column of the clamping block 36, located in the heat dissipation cavity, is equipped with a conductive protrusion 361 that controls the sliding rheostat 44, thereby controlling the size of the heat dissipation area. The conductive protrusion 361 is connected to the heat dissipation power supply inside the support base 1. When the conductive protrusion 361 is connected to the sliding rheostat 44 in the heat dissipation component 4, the heat dissipation component 4 is energized. The conductive protrusion 361 controls the opening and closing of the heat dissipation component 4 and its heat dissipation effect. The conductive protrusion 361, controlled by the movement of the clamping block 36, connects to the sliding rheostat 44 in different areas, controlling the opening area of ​​the heat dissipation component 4 and controlling the resistance of the circuit connected to the sliding rheostat 44, thereby regulating the airflow of the heat dissipation component 4. This achieves concentrated heat dissipation for digital screens of different sizes, enhancing the energy-saving effect and heat dissipation efficiency of the heat dissipation component 4.

[0029] The heat dissipation assembly 4 includes heat dissipation blades 41, a permanent magnet 42, an electromagnet 43, a sliding rheostat 44, a heat dissipation push block 45, and a heat dissipation baffle 46. The heat dissipation cavity inside the L-shaped horizontal end of the support base 1 is located above and separated from the clamping cavity. The heat dissipation cavity is close to the horizontal section of the support base 1, which gives the heat dissipation assembly 4 a good heat dissipation effect and can fully dissipate heat from the digital screen. The heat dissipation cavity partition plate has a groove that is flush with the clamping groove 11, so that the clamping block 36 is connected to the support base 1. The heat dissipation cavity is connected to the cleaning assembly 5 through the air outlet of the support base 1. The clamping block 36 is connected to the heat dissipation cavity through the groove on the heat dissipation cavity partition plate. The clamping groove 11 and the ventilation hole 12 connect the heat dissipation cavity to the outside air, so as to realize the air circulation in the heat dissipation cavity during the heat dissipation process. Six sets of heat dissipation devices are fixedly installed on the upper surface of the partition plate inside the cavity. Each set of heat dissipation devices is connected in series via a circuit, and each set of heat dissipation devices has a sliding rheostat 44. Two permanent magnets 42 are set on each set of heat dissipation devices on the partition plate. An electromagnet 43 is fixedly installed opposite the permanent magnets 42. One end of the electromagnet 43 is connected to a sliding rheostat 44 that controls the heat dissipation area, and the other end is connected to the next electromagnet 43. The electromagnet 43 away from the power source is only connected to the previous electromagnet 43, and the electromagnet 43 closer to the power source is connected to the power source. The electromagnets 43 work by being connected to the circuit via the sliding rheostat 44. The sliding rheostat 44 controls the current to control the strength of the electromagnet 43's magnetism, thereby controlling the wind force. An auxiliary valve is installed between the permanent magnets 42 and the electromagnets 43. The heat dissipation blades 41, which aid in dust removal and cleaning, are made of magnetic material and are controlled by an electromagnet 43 to swing and thus achieve airflow cooling for the digital screen. A guide window is located in the middle of the end of each heat dissipation blade 41. A rotating shaft 411 is located between the two ends of each heat dissipation blade 41, allowing the blades to rotate around the shaft. The heat dissipation blades 41 are connected to a cleaning component 5 for self-cleaning of dust. Multiple continuous inverted trapezoidal ventilation holes 12 are provided inside the heat dissipation cavity. The smaller upper surface of each ventilation hole 12 is located inside the heat dissipation cavity, while the larger lower surface connects to the outside air. When the ventilation holes 12 open and close, the wind speed increases, causing dust to move outwards. The wind speed is at its maximum at the interface between the ventilation hole 12 and the heat dissipation cavity, forcefully blowing the dust out. Subsequently, the wind speed decreases to prevent the dust from being ejected too far. The inverted trapezoidal ventilation hole 12 changes the wind speed when it opens and closes, enhancing the dust removal and cleaning effect of the heat dissipation blades. A heat dissipation baffle 46 is installed at the inverted trapezoidal ventilation hole 12 for dust prevention and auxiliary cleaning. The heat dissipation baffle 46, which controls the cleaning and dust removal of the ventilation hole 12, has a trapezoidal sawtooth structure and the trapezoid is isosceles. The small area of ​​the upper bottom of the heat dissipation baffle 46 is connected to the small area of ​​the upper bottom of the ventilation hole 12, and the area of ​​the upper bottom of the heat dissipation baffle 46 is larger than that of the upper bottom of the ventilation hole 12. The heat dissipation baffle 46 can tightly seal the ventilation hole 12 for dust prevention, while accelerating the heat dissipation wind speed and improving heat dissipation efficiency. The inverted trapezoidal structure makes the wind speed increase when the ventilation hole is opened, blowing out the dust in the heat dissipation cavity. A heat dissipation push block 45 for protecting the pressure-sensitive pen 2 is fixedly connected and installed near the vertical section of the support base 1.The heat dissipation pusher 45 is connected to the pen holder 13 and slidably installed in the heat dissipation holes within the support base 1. The heat dissipation pusher 45, which locks the pressure-sensitive pen 2 and controls the opening and closing of the ventilation holes 12, has an internal structure of a side-convex frustum shape. This structure not only allows for smooth insertion and locking of the pressure-sensitive pen 2 but also enhances the dustproof effect of the support base 1 when not in use. The heat dissipation pusher 45 has a cylindrical structure near the pen holder 13, with a spring fixedly installed on its outer surface. The spring automatically resets the heat dissipation pusher 45 and seals the ventilation holes 12 for dust prevention. Initially, the heat dissipation pusher 45 and the heat dissipation baffle 46 seal the ventilation holes 12. With the pressure-sensitive pen 2 inserted in the pen holder 13, the heat dissipation pusher 45 compresses the spring, pulling out the pressure-sensitive pen 2. The heat dissipation pusher 45 then pops out under the spring's action, pulling open the heat dissipation baffle 46 and opening the ventilation holes 12 for heat dissipation and dust removal.

[0030] The cleaning assembly 5 includes a cleaning roller 51, a cleaning nozzle 52, a cleaning push rod 53, a rotating bevel gear 54, a cleaning bevel gear 55, and a cleaning guide tube 56. The cleaning push rod 53 is connected and installed on the horizontal side wall of the clamping block 36. The cleaning push rod 53, which controls the rotation of the cleaning roller 51, has a 0.5mm deep rotating groove that allows cleaning to be achieved by moving the clamping block 36. This rotating groove not only increases the cleaning effect of the cleaning assembly 5 on the digital screen but also locks the small push block on the clamping block 36 after the digital screen is clamped, thus enhancing the positioning effect of the digital screen. Simultaneously, the 0.5mm rotating groove increases the contact area between the small push block and the cleaning push rod 53, increasing the cleaning time of the cleaning roller 51 on the digital screen and improving the cleaning effect of the cleaning roller 51 on the screen. The cleaning function of the digital display is affected by several factors. When the rotating groove is larger than 0.5mm, the small push block becomes difficult to move, affecting the clamping effect and preventing the cleaning function from being achieved. When the rotating groove is smaller than 0.5mm, the contact area between the small push block and the rotating groove is insufficient, causing the small push block to slip during rotation, thus failing the cleaning function. A small push block is slidably installed on the horizontal side wall of the clamping block 36 within the rotating groove. Initially, the small push block is located at the top of the rotating groove of the cleaning push rod 53. The depth of the rotating groove ensures that the small push block on the clamping block 36 will not fall off and achieves self-locking while simultaneously realizing the cleaning function. A rotating bevel gear 54 is coaxially installed on the vertical L-shaped section of the cleaning push rod 53, away from the support base. The diameter of the rotating bevel gear 54 is smaller than the diameter of the cleaning push rod 53. The cleaning bevel gear 54 is meshed with the cleaning bevel gear 55 with a transmission ratio of 4:1. The cleaning bevel gear 55 is meshed and horizontally placed. The cleaning roller 51 is fixedly connected to the cleaning bevel gear 55. The cleaning roller 51 rotates synchronously with the cleaning bevel gear 55, so that the cleaning bevel gear 55 rotates 90° to clean the digital screen once when the cleaning push rod 53 completes one cycle. The cleaning guide tube 56 is fixedly installed in the air outlet of the support base 1. The cleaning roller 51 has a cleaning hole and an air inlet. The cleaning roller 51 is L-shaped with a hinge. During the swinging process, the cleaning roller 51 changes to a straight line. When the cleaning roller 51 is in the L-shape, the vertical section of the cleaning roller 51 positions the clamping block 36 to ensure the positioning accuracy of the digital screen. During the movement of the clamping block 36, the vertical section is subjected to force and rises to become a straight line, increasing the cleaning area of ​​the cleaning roller 51. After cleaning, it becomes an "L" shape, further enhancing the positioning effect of the clamping block 36. A cleaning nozzle 52 is installed on the cleaning hole of the cleaning roller 51, and the cleaning nozzle 52 faces the surface of the digital screen. The cleaning roller 51 is hollow inside, and the air inlet of the cleaning roller 51 is connected to the heat dissipation cavity through the cleaning conduit 56. The inner end of the cleaning conduit 56 is close to the heat dissipation blade 41, so that the cleaning roller 51 cleans the surface of the digital screen when clamping the digital screen. At the same time, the movement of the clamping block 36 causes the heat dissipation component 4 to start working. The cleaning conduit 56 causes the cleaning nozzle 52 to spray air to remove surface dust when the cleaning roller 51 is cleaning.

[0031] Initially, clamping block 36 is located in clamping groove 11 in the vertical section of support base 1 away from support base 1. The conductive protrusion 361 in clamping block 36 is not connected to the sliding rheostat 44 in the vertical section away from support base 1. Electromagnet 43 is de-energized and non-magnetic. Heat dissipation blades 41 are biased towards the permanent magnet 42. Clamping baffle 33 is located in the vertical section away from support base 1. Pressure pen 2 is placed in pen holder 13. Heat dissipation push block 45 compresses spring to lock pressure pen 2. Heat dissipation baffle 46 is pushed by heat dissipation push block 45 to close ventilation hole 12. Small push block on clamping block 36 is located at the top of cleaning push rod 53. Cleaning push rod 53 is stationary and the lower surface of cleaning roller 51 is at the same height as digital screen. At the same time, cleaning roller 51 is perpendicular to clamping groove 11. When digital screen needs to be used... The digital display is placed on the horizontal claw end of the clamping block 36 and secured in one direction. After the digital display is fixed on the clamping block 36, it is clamped. The clamping motor 31 is started, and the clamping motor 31 rotates forward, causing the clamping screw 32 to rotate. The clamping screw 32 with its reverse thread structure rotates, and the clamping ball 34 rotates on the clamping screw 32 and moves towards the clamping motor 31. The rotation and movement of the clamping ball 34 causes the clamping baffle 33 to move, which in turn causes the clamping block 36 to move towards the clamping motor 31. The movement of the clamping block 36 causes the digital display to move towards the vertical section of the support base 1. The movement of the clamping block 36 causes the small push block of the clamping block 36 to move on the rotating groove of the cleaning push rod 53. The movement of the small push block causes the cleaning push rod 53 to rotate. The rotation of the cleaning push rod 53 drives the rotating bevel gear 54 to rotate, which in turn drives the cleaning bevel gear 55 to rotate, which in turn drives the cleaning roller 51 to rotate. The cleaning roller 51 cleans the surface of the digital screen. At the same time, the conductive protrusion 361 of the clamping block 36 is connected to the first sliding rheostat 44, and the electromagnet 43 is energized. The power supply is AC, and the electromagnet 43 becomes magnetic. The magnetic field changes continuously with the AC current, and the electromagnet 43 drives the heat dissipation blades 41 to swing continuously to achieve air cooling. As the clamping block 36 moves, when the digital screen moves away from the clamping block 36 to the vertical limit of the support base 1, the pressure sensor on the clamping block 36 controls the clamping motor 31 to shut off, and the small push block on the clamping block 36 moves to the cleaning position. The cleaning push rod 53 rotates to the lowest end of the rotating groove. As the cleaning push rod 53 rotates one full turn (360°), the rotating bevel gear 54 rotates one full turn, driving the cleaning bevel gear 55 to rotate 90°. The cleaning bevel gear 55 then drives the cleaning roller 51 to rotate 90°. At this point, the cleaning roller 51 is located at the top horizontal position of the support base 1, parallel to the clamping groove 11. The conductive protrusion 361 on the clamping block 36 moves into a sliding rheostat 44, de-energizing the electromagnet 43 in the vertical section away from the support base 1. The heat dissipation blades 41 stop working, while the other electromagnets 43 continue to operate, but with reduced current. This reduces the magnetism of the electromagnets 43, decreases the oscillation frequency of the heat dissipation blades 41, and reduces the airflow. This operating state continues until the digital screen is no longer used.During this process, the cleaning conduit 56 generates airflow from the heat dissipation blades 41, which is then sprayed from the cleaning nozzle to remove dust from the surface of the digital screen. After the digital screen is fixed, the pressure-sensitive pen 2 is removed. With the pen 2 removed, the heat dissipation pusher 45 pops out, causing the heat dissipation baffle 46 to move. As the baffle 46 moves away, the ventilation hole 12 opens, and the airflow inside the heat dissipation cavity blows the dust out through the ventilation hole 12, maintaining smooth ventilation.

[0032] After the work is completed, the pressure-sensitive pen 2 is inserted back into the pen holder 13. The pressure-sensitive pen 2 presses the heat dissipation push block 45, which in turn presses the spring to push the heat dissipation baffle 46. The heat dissipation baffle 46 moves to seal the ventilation hole 12 for dust prevention. The clamping motor 31 starts and reverses. The clamping screw 32 drives the clamping baffle 33 away from the vertical section of the support base 1. The clamping block 36 moves, and the cleaning roller 51 rotates in the opposite direction as the clamping block 36 moves to clean the digital screen again until the clamping block 36 drives the digital screen back to its original position. At this time, the clamping motor 31 is turned off.

[0033] The foregoing has shown and described the basic principles and beneficial effects of the present invention. However, the present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its effects and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for improving the usability of a digital display, comprising a support base (1) and a pressure-sensitive pen (2), characterized in that: It also includes a clamping assembly (3), a heat dissipation assembly (4), and a cleaning assembly (5). The support base (1) is provided with two clamping grooves (11). The support base (1) is provided with a heat dissipation cavity and a clamping cavity. The heat dissipation cavity of the support base (1) is provided with multiple ventilation holes (12). The support base (1) is provided with an air outlet. The side wall of the support base (1) is provided with a pen holder (13) for placing a pressure-sensitive pen (2). The pen holder (13) is provided with an opening and closing ventilation hole (12) for... The pressure-sensitive pen (2) is enhanced with dust resistance and heat dissipation. The clamping cavity of the support base (1) is equipped with a clamping component (3). The clamping component (3) adjusts the heat dissipation area of ​​the digital screen of different sizes by changing the internal position and adjusting the resistance. The support base (1) is equipped with a heat dissipation component (4). The heat dissipation component (4) uses the Bernoulli principle to make the gas change speed with the change of the position of the pressure-sensitive pen (2). The heat dissipation component (4) is connected to a cleaning component (5) to promote clamping and protect the digital screen. The clamping assembly (3) includes a clamping baffle (33), and a clamping block (36) with adjustable resistance for changing its position is fixedly installed on the upper surface of the clamping baffle (33). The heat dissipation assembly (4) includes heat dissipation blades (41), permanent magnets (42), electromagnets (43), sliding rheostats (44), heat dissipation push blocks (45), and heat dissipation baffles (46). The heat dissipation cavity of the support base (1) is fixedly installed with permanent magnets (42). Electromagnets (43) are fixedly installed on the opposite side of permanent magnets (42). One end of electromagnets (43) is connected to sliding rheostats (44) driven by clamping blocks (36). Heat dissipation blades (41) that use magnetic swing to clean dust in the base are installed between permanent magnets (42) and electromagnets (43). Heat dissipation baffles (46) are installed at the ventilation holes (12) of the heat dissipation cavity. Heat dissipation baffles (46) are connected to heat dissipation push blocks (45) that protect pressure-sensitive pens (2). Heat dissipation push blocks (45) are connected to pen inserts (13). As the clamping block (36) moves, the resistance of the sliding rheostat (44) connected to the clamping block (36) changes, and the change in the current in the circuit causes the magnetism of the electromagnet (43) to change, thereby causing the wind force to change and thus control the heat dissipation efficiency.

2. The positioning device for improving the usability of a digital display screen according to claim 1, characterized in that: The clamping assembly (3) includes a clamping motor (31), a clamping screw (32), clamping balls (34), a clamping slide bar (35), and a clamping block (36). The clamping motor (31) is fixedly installed inside the support base (1), and the clamping screw (32) is installed on the shaft of the clamping motor (31). The clamping slide bar (35) is fixedly installed horizontally on both sides of the clamping screw. The clamping balls (34) are installed on the clamping screw (32). The clamping balls (34) are installed in the screw hole of the clamping baffle (33) and move together with the clamping baffle (33). The clamping block (36) changes the cleaning range of the cleaning assembly (5) by converting linear motion into rotation.

3. The positioning device for improving the usability of a digital display screen according to claim 1, characterized in that: The cleaning assembly (5) includes a cleaning roller (51), a cleaning nozzle (52), a cleaning push rod (53), a rotating bevel gear (54), a cleaning bevel gear (55), a cleaning conduit (56), and a cleaning conduit (56). The clamping block (36) is connected to the cleaning push rod (53), which changes the rotation direction through the clamping block (36). The cleaning push rod (53) is coaxially mounted with the rotating bevel gear (54). The rotating bevel gear (54) meshes with the cleaning bevel gear (55). The cleaning bevel gear (55) is fixedly mounted to one end of the cleaning roller (51). The cleaning nozzle (52) is mounted on the cleaning roller (51). The cleaning conduit (56) is mounted on the support base (1). The interior of the cleaning roller (51) is hollow and communicates with the heat dissipation cavity through the cleaning conduit (56).

4. The positioning device for improving the usability of a digital display screen according to claim 3, characterized in that: The clamping block (36) connected to the heat dissipation component (4) and controlling the heat dissipation area and heat dissipation rate is an irregular column structure. The clamping block (36) is horizontally close to the end of the cleaning push rod (53) and is connected to the cleaning push rod (53). The clamping block (36) is vertically located at the heat dissipation cavity and is connected to a conductive protrusion (361) for wind speed regulation.

5. The positioning device for improving the usability of a digital display screen according to claim 1, characterized in that: The heat dissipation pusher (45) has a side frustum-shaped structure, the ventilation hole (12) has an inverted trapezoidal structure, and the heat dissipation baffle (46) has a trapezoidal sawtooth structure. The gradual movement of the heat dissipation pusher (45) changes the diameter of the ventilation hole (12).

6. The positioning device for improving the usability of a digital display screen according to claim 3, characterized in that: The cleaning roller (51) is an "L"-shaped hinge, and the cleaning roller (51) transforms into a "I" shape during the swinging process.

7. The positioning device for improving the usability of a digital display screen according to claim 4, characterized in that: The cleaning push rod (53) has a rotating groove with a locking clamping block (36) to enhance the positioning effect.

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